author | Sverre Rabbelier <srabbelier@gmail.com> |
Fri, 23 Oct 2009 13:54:11 -0500 | |
changeset 3031 | 7678f72140e6 |
parent 2273 | e4cb9c53db3e |
permissions | -rwxr-xr-x |
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#!/usr/bin/env python |
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# |
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# Copyright 2007 Google Inc. |
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# |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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# |
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"""Image manipulation API. |
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Classes defined in this module: |
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Image: class used to encapsulate image information and transformations for |
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that image. |
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The current manipulations that are available are resize, rotate, |
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horizontal_flip, vertical_flip, crop and im_feeling_lucky. |
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It should be noted that each transform can only be called once per image |
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per execute_transforms() call. |
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""" |
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import struct |
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from google.appengine.api import apiproxy_stub_map |
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from google.appengine.api.images import images_service_pb |
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from google.appengine.runtime import apiproxy_errors |
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JPEG = images_service_pb.OutputSettings.JPEG |
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PNG = images_service_pb.OutputSettings.PNG |
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OUTPUT_ENCODING_TYPES = frozenset([JPEG, PNG]) |
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TOP_LEFT = images_service_pb.CompositeImageOptions.TOP_LEFT |
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TOP_CENTER = images_service_pb.CompositeImageOptions.TOP |
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TOP_RIGHT = images_service_pb.CompositeImageOptions.TOP_RIGHT |
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CENTER_LEFT = images_service_pb.CompositeImageOptions.LEFT |
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CENTER_CENTER = images_service_pb.CompositeImageOptions.CENTER |
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CENTER_RIGHT = images_service_pb.CompositeImageOptions.RIGHT |
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BOTTOM_LEFT = images_service_pb.CompositeImageOptions.BOTTOM_LEFT |
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BOTTOM_CENTER = images_service_pb.CompositeImageOptions.BOTTOM |
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BOTTOM_RIGHT = images_service_pb.CompositeImageOptions.BOTTOM_RIGHT |
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ANCHOR_TYPES = frozenset([TOP_LEFT, TOP_CENTER, TOP_RIGHT, CENTER_LEFT, |
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CENTER_CENTER, CENTER_RIGHT, BOTTOM_LEFT, |
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BOTTOM_CENTER, BOTTOM_RIGHT]) |
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MAX_TRANSFORMS_PER_REQUEST = 10 |
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MAX_COMPOSITES_PER_REQUEST = 16 |
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class Error(Exception): |
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"""Base error class for this module.""" |
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class TransformationError(Error): |
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"""Error while attempting to transform the image.""" |
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class BadRequestError(Error): |
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"""The parameters given had something wrong with them.""" |
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class NotImageError(Error): |
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"""The image data given is not recognizable as an image.""" |
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class BadImageError(Error): |
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"""The image data given is corrupt.""" |
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class LargeImageError(Error): |
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"""The image data given is too large to process.""" |
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class InvalidBlobKeyError(Error): |
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"""The provided blob key was invalid.""" |
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class Image(object): |
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"""Image object to manipulate.""" |
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def __init__(self, image_data=None, blob_key=None): |
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"""Constructor. |
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Args: |
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image_data: str, image data in string form. |
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blob_key: str, image data as a blobstore blob key. |
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Raises: |
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NotImageError if the given data is empty. |
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""" |
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if not image_data and not blob_key: |
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raise NotImageError("Empty image data.") |
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if image_data and blob_key: |
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raise NotImageError("Can only take one image or blob key.") |
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changeset
|
109 |
|
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|
110 |
self._image_data = image_data |
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|
111 |
self._blob_key = blob_key |
109
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|
112 |
self._transforms = [] |
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|
113 |
self._width = None |
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|
114 |
self._height = None |
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|
115 |
|
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|
116 |
def _check_transform_limits(self): |
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|
117 |
"""Ensure some simple limits on the number of transforms allowed. |
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|
118 |
|
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|
119 |
Raises: |
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|
120 |
BadRequestError if MAX_TRANSFORMS_PER_REQUEST transforms have already been |
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|
121 |
requested for this image |
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|
122 |
""" |
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|
123 |
if len(self._transforms) >= MAX_TRANSFORMS_PER_REQUEST: |
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|
124 |
raise BadRequestError("%d transforms have already been requested on this " |
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|
125 |
"image." % MAX_TRANSFORMS_PER_REQUEST) |
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|
126 |
|
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127 |
def _update_dimensions(self): |
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128 |
"""Updates the width and height fields of the image. |
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129 |
|
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|
130 |
Raises: |
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131 |
NotImageError if the image data is not an image. |
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132 |
BadImageError if the image data is corrupt. |
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133 |
""" |
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|
134 |
if not self._image_data: |
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|
135 |
raise NotImageError("Dimensions unavailable for blob key input") |
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136 |
size = len(self._image_data) |
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137 |
if size >= 6 and self._image_data.startswith("GIF"): |
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138 |
self._update_gif_dimensions() |
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|
139 |
elif size >= 8 and self._image_data.startswith("\x89PNG\x0D\x0A\x1A\x0A"): |
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140 |
self._update_png_dimensions() |
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141 |
elif size >= 2 and self._image_data.startswith("\xff\xD8"): |
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142 |
self._update_jpeg_dimensions() |
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143 |
elif (size >= 8 and (self._image_data.startswith("II\x2a\x00") or |
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144 |
self._image_data.startswith("MM\x00\x2a"))): |
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145 |
self._update_tiff_dimensions() |
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146 |
elif size >= 2 and self._image_data.startswith("BM"): |
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147 |
self._update_bmp_dimensions() |
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|
148 |
elif size >= 4 and self._image_data.startswith("\x00\x00\x01\x00"): |
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149 |
self._update_ico_dimensions() |
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150 |
else: |
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151 |
raise NotImageError("Unrecognized image format") |
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|
152 |
|
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|
153 |
def _update_gif_dimensions(self): |
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154 |
"""Updates the width and height fields of the gif image. |
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|
155 |
|
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|
156 |
Raises: |
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|
157 |
BadImageError if the image string is not a valid gif image. |
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|
158 |
""" |
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|
159 |
size = len(self._image_data) |
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|
160 |
if size >= 10: |
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|
161 |
self._width, self._height = struct.unpack("<HH", self._image_data[6:10]) |
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|
162 |
else: |
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|
163 |
raise BadImageError("Corrupt GIF format") |
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|
164 |
|
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|
165 |
def _update_png_dimensions(self): |
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|
166 |
"""Updates the width and height fields of the png image. |
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|
167 |
|
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|
168 |
Raises: |
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|
169 |
BadImageError if the image string is not a valid png image. |
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|
170 |
""" |
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|
171 |
size = len(self._image_data) |
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|
172 |
if size >= 24 and self._image_data[12:16] == "IHDR": |
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|
173 |
self._width, self._height = struct.unpack(">II", self._image_data[16:24]) |
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|
174 |
else: |
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|
175 |
raise BadImageError("Corrupt PNG format") |
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|
176 |
|
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|
177 |
def _update_jpeg_dimensions(self): |
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|
178 |
"""Updates the width and height fields of the jpeg image. |
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|
179 |
|
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|
180 |
Raises: |
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|
181 |
BadImageError if the image string is not a valid jpeg image. |
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|
182 |
""" |
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|
183 |
size = len(self._image_data) |
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|
184 |
offset = 2 |
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|
185 |
while offset < size: |
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|
186 |
while offset < size and ord(self._image_data[offset]) != 0xFF: |
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|
187 |
offset += 1 |
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|
188 |
while offset < size and ord(self._image_data[offset]) == 0xFF: |
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|
189 |
offset += 1 |
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|
190 |
if (offset < size and ord(self._image_data[offset]) & 0xF0 == 0xC0 and |
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|
191 |
ord(self._image_data[offset]) != 0xC4): |
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|
192 |
offset += 4 |
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|
193 |
if offset + 4 <= size: |
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|
194 |
self._height, self._width = struct.unpack( |
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|
195 |
">HH", |
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|
196 |
self._image_data[offset:offset + 4]) |
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|
197 |
break |
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|
198 |
else: |
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|
199 |
raise BadImageError("Corrupt JPEG format") |
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|
200 |
elif offset + 3 <= size: |
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|
201 |
offset += 1 |
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|
202 |
offset += struct.unpack(">H", self._image_data[offset:offset + 2])[0] |
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|
203 |
else: |
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|
204 |
raise BadImageError("Corrupt JPEG format") |
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|
205 |
if self._height is None or self._width is None: |
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|
206 |
raise BadImageError("Corrupt JPEG format") |
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|
207 |
|
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|
208 |
def _update_tiff_dimensions(self): |
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|
209 |
"""Updates the width and height fields of the tiff image. |
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|
210 |
|
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|
211 |
Raises: |
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parents:
109
diff
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|
212 |
BadImageError if the image string is not a valid tiff image. |
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|
213 |
""" |
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|
214 |
size = len(self._image_data) |
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|
215 |
if self._image_data.startswith("II"): |
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|
216 |
endianness = "<" |
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|
217 |
else: |
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|
218 |
endianness = ">" |
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|
219 |
ifd_offset = struct.unpack(endianness + "I", self._image_data[4:8])[0] |
1278
a7766286a7be
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
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|
220 |
if ifd_offset + 14 <= size: |
828
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|
221 |
ifd_size = struct.unpack( |
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|
222 |
endianness + "H", |
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diff
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|
223 |
self._image_data[ifd_offset:ifd_offset + 2])[0] |
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|
224 |
ifd_offset += 2 |
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|
225 |
for unused_i in range(0, ifd_size): |
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|
226 |
if ifd_offset + 12 <= size: |
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|
227 |
tag = struct.unpack( |
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|
228 |
endianness + "H", |
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diff
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|
229 |
self._image_data[ifd_offset:ifd_offset + 2])[0] |
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parents:
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diff
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|
230 |
if tag == 0x100 or tag == 0x101: |
f5fd65cc3bf3
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parents:
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|
231 |
value_type = struct.unpack( |
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|
232 |
endianness + "H", |
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|
233 |
self._image_data[ifd_offset + 2:ifd_offset + 4])[0] |
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|
234 |
if value_type == 3: |
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|
235 |
format = endianness + "H" |
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109
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|
236 |
end_offset = ifd_offset + 10 |
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|
237 |
elif value_type == 4: |
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parents:
109
diff
changeset
|
238 |
format = endianness + "I" |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
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|
239 |
end_offset = ifd_offset + 12 |
f5fd65cc3bf3
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
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diff
changeset
|
240 |
else: |
f5fd65cc3bf3
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
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changeset
|
241 |
format = endianness + "B" |
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|
242 |
end_offset = ifd_offset + 9 |
f5fd65cc3bf3
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Pawel Solyga <Pawel.Solyga@gmail.com>
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109
diff
changeset
|
243 |
if tag == 0x100: |
f5fd65cc3bf3
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Pawel Solyga <Pawel.Solyga@gmail.com>
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|
244 |
self._width = struct.unpack( |
f5fd65cc3bf3
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|
245 |
format, |
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|
246 |
self._image_data[ifd_offset + 8:end_offset])[0] |
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Pawel Solyga <Pawel.Solyga@gmail.com>
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|
247 |
if self._height is not None: |
f5fd65cc3bf3
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Pawel Solyga <Pawel.Solyga@gmail.com>
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|
248 |
break |
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109
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|
249 |
else: |
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Pawel Solyga <Pawel.Solyga@gmail.com>
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109
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|
250 |
self._height = struct.unpack( |
f5fd65cc3bf3
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109
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|
251 |
format, |
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
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|
252 |
self._image_data[ifd_offset + 8:end_offset])[0] |
f5fd65cc3bf3
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109
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|
253 |
if self._width is not None: |
f5fd65cc3bf3
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
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|
254 |
break |
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Pawel Solyga <Pawel.Solyga@gmail.com>
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109
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|
255 |
ifd_offset += 12 |
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parents:
109
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changeset
|
256 |
else: |
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parents:
109
diff
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|
257 |
raise BadImageError("Corrupt TIFF format") |
f5fd65cc3bf3
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parents:
109
diff
changeset
|
258 |
if self._width is None or self._height is None: |
f5fd65cc3bf3
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parents:
109
diff
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|
259 |
raise BadImageError("Corrupt TIFF format") |
f5fd65cc3bf3
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|
260 |
|
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109
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|
261 |
def _update_bmp_dimensions(self): |
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diff
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|
262 |
"""Updates the width and height fields of the bmp image. |
f5fd65cc3bf3
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109
diff
changeset
|
263 |
|
f5fd65cc3bf3
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parents:
109
diff
changeset
|
264 |
Raises: |
f5fd65cc3bf3
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parents:
109
diff
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|
265 |
BadImageError if the image string is not a valid bmp image. |
f5fd65cc3bf3
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|
266 |
""" |
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|
267 |
size = len(self._image_data) |
f5fd65cc3bf3
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|
268 |
if size >= 18: |
f5fd65cc3bf3
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|
269 |
header_length = struct.unpack("<I", self._image_data[14:18])[0] |
f5fd65cc3bf3
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|
270 |
if ((header_length == 40 or header_length == 108 or |
f5fd65cc3bf3
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109
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|
271 |
header_length == 124 or header_length == 64) and size >= 26): |
f5fd65cc3bf3
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109
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|
272 |
self._width, self._height = struct.unpack("<II", |
f5fd65cc3bf3
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|
273 |
self._image_data[18:26]) |
f5fd65cc3bf3
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|
274 |
elif header_length == 12 and size >= 22: |
f5fd65cc3bf3
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|
275 |
self._width, self._height = struct.unpack("<HH", |
f5fd65cc3bf3
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|
276 |
self._image_data[18:22]) |
f5fd65cc3bf3
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|
277 |
else: |
f5fd65cc3bf3
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109
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|
278 |
raise BadImageError("Corrupt BMP format") |
f5fd65cc3bf3
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|
279 |
else: |
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109
diff
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|
280 |
raise BadImageError("Corrupt BMP format") |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
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|
281 |
|
f5fd65cc3bf3
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|
282 |
def _update_ico_dimensions(self): |
f5fd65cc3bf3
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|
283 |
"""Updates the width and height fields of the ico image. |
f5fd65cc3bf3
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|
284 |
|
f5fd65cc3bf3
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parents:
109
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|
285 |
Raises: |
f5fd65cc3bf3
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Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
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|
286 |
BadImageError if the image string is not a valid ico image. |
f5fd65cc3bf3
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|
287 |
""" |
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|
288 |
size = len(self._image_data) |
f5fd65cc3bf3
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Pawel Solyga <Pawel.Solyga@gmail.com>
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|
289 |
if size >= 8: |
f5fd65cc3bf3
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109
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changeset
|
290 |
self._width, self._height = struct.unpack("<BB", self._image_data[6:8]) |
f5fd65cc3bf3
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Pawel Solyga <Pawel.Solyga@gmail.com>
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109
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|
291 |
if not self._width: |
f5fd65cc3bf3
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|
292 |
self._width = 256 |
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|
293 |
if not self._height: |
f5fd65cc3bf3
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109
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|
294 |
self._height = 256 |
f5fd65cc3bf3
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109
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changeset
|
295 |
else: |
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109
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|
296 |
raise BadImageError("Corrupt ICO format") |
f5fd65cc3bf3
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parents:
109
diff
changeset
|
297 |
|
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
298 |
def resize(self, width=0, height=0): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
299 |
"""Resize the image maintaining the aspect ratio. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
300 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
301 |
If both width and height are specified, the more restricting of the two |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
302 |
values will be used when resizing the photo. The maximum dimension allowed |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
303 |
for both width and height is 4000 pixels. |
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changeset
|
304 |
|
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|
305 |
Args: |
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|
306 |
width: int, width (in pixels) to change the image width to. |
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parents:
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|
307 |
height: int, height (in pixels) to change the image height to. |
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parents:
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changeset
|
308 |
|
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parents:
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changeset
|
309 |
Raises: |
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Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
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|
310 |
TypeError when width or height is not either 'int' or 'long' types. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
diff
changeset
|
311 |
BadRequestError when there is something wrong with the given height or |
1278
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|
312 |
width or if MAX_TRANSFORMS_PER_REQUEST transforms have already been |
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changeset
|
313 |
requested on this image. |
109
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|
314 |
""" |
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Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
diff
changeset
|
315 |
if (not isinstance(width, (int, long)) or |
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parents:
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changeset
|
316 |
not isinstance(height, (int, long))): |
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|
317 |
raise TypeError("Width and height must be integers.") |
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parents:
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changeset
|
318 |
if width < 0 or height < 0: |
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Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
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changeset
|
319 |
raise BadRequestError("Width and height must be >= 0.") |
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parents:
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changeset
|
320 |
|
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parents:
diff
changeset
|
321 |
if not width and not height: |
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parents:
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changeset
|
322 |
raise BadRequestError("At least one of width or height must be > 0.") |
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parents:
diff
changeset
|
323 |
|
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parents:
diff
changeset
|
324 |
if width > 4000 or height > 4000: |
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diff
changeset
|
325 |
raise BadRequestError("Both width and height must be <= 4000.") |
109
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changeset
|
326 |
|
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|
327 |
self._check_transform_limits() |
109
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changeset
|
328 |
|
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|
329 |
transform = images_service_pb.Transform() |
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parents:
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changeset
|
330 |
transform.set_width(width) |
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parents:
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changeset
|
331 |
transform.set_height(height) |
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parents:
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changeset
|
332 |
|
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parents:
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changeset
|
333 |
self._transforms.append(transform) |
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parents:
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changeset
|
334 |
|
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parents:
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changeset
|
335 |
def rotate(self, degrees): |
620f9b141567
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parents:
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changeset
|
336 |
"""Rotate an image a given number of degrees clockwise. |
620f9b141567
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parents:
diff
changeset
|
337 |
|
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parents:
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changeset
|
338 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
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changeset
|
339 |
degrees: int, must be a multiple of 90. |
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parents:
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changeset
|
340 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
diff
changeset
|
341 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
diff
changeset
|
342 |
TypeError when degrees is not either 'int' or 'long' types. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
343 |
BadRequestError when there is something wrong with the given degrees or |
1278
a7766286a7be
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parents:
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diff
changeset
|
344 |
if MAX_TRANSFORMS_PER_REQUEST transforms have already been requested. |
109
620f9b141567
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parents:
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changeset
|
345 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
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changeset
|
346 |
if not isinstance(degrees, (int, long)): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
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changeset
|
347 |
raise TypeError("Degrees must be integers.") |
620f9b141567
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parents:
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changeset
|
348 |
|
620f9b141567
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parents:
diff
changeset
|
349 |
if degrees % 90 != 0: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
350 |
raise BadRequestError("degrees argument must be multiple of 90.") |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
351 |
|
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
352 |
degrees = degrees % 360 |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
diff
changeset
|
353 |
|
1278
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parents:
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diff
changeset
|
354 |
self._check_transform_limits() |
109
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parents:
diff
changeset
|
355 |
|
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
356 |
transform = images_service_pb.Transform() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
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parents:
diff
changeset
|
357 |
transform.set_rotate(degrees) |
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parents:
diff
changeset
|
358 |
|
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
359 |
self._transforms.append(transform) |
620f9b141567
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parents:
diff
changeset
|
360 |
|
620f9b141567
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Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
361 |
def horizontal_flip(self): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
362 |
"""Flip the image horizontally. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
363 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
364 |
Raises: |
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
365 |
BadRequestError if MAX_TRANSFORMS_PER_REQUEST transforms have already been |
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
366 |
requested on the image. |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
367 |
""" |
1278
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Load /Users/solydzajs/Downloads/google_appengine into
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parents:
828
diff
changeset
|
368 |
self._check_transform_limits() |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
369 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
370 |
transform = images_service_pb.Transform() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
371 |
transform.set_horizontal_flip(True) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
372 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
373 |
self._transforms.append(transform) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
374 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
375 |
def vertical_flip(self): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
376 |
"""Flip the image vertically. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
377 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
378 |
Raises: |
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
379 |
BadRequestError if MAX_TRANSFORMS_PER_REQUEST transforms have already been |
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
380 |
requested on the image. |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
381 |
""" |
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
382 |
self._check_transform_limits() |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
383 |
transform = images_service_pb.Transform() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
384 |
transform.set_vertical_flip(True) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
385 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
386 |
self._transforms.append(transform) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
387 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
388 |
def _validate_crop_arg(self, val, val_name): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
389 |
"""Validate the given value of a Crop() method argument. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
390 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
391 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
392 |
val: float, value of the argument. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
393 |
val_name: str, name of the argument. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
394 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
395 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
396 |
TypeError if the args are not of type 'float'. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
397 |
BadRequestError when there is something wrong with the given bounding box. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
398 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
399 |
if type(val) != float: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
400 |
raise TypeError("arg '%s' must be of type 'float'." % val_name) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
401 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
402 |
if not (0 <= val <= 1.0): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
403 |
raise BadRequestError("arg '%s' must be between 0.0 and 1.0 " |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
404 |
"(inclusive)" % val_name) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
405 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
406 |
def crop(self, left_x, top_y, right_x, bottom_y): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
407 |
"""Crop the image. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
408 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
409 |
The four arguments are the scaling numbers to describe the bounding box |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
410 |
which will crop the image. The upper left point of the bounding box will |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
411 |
be at (left_x*image_width, top_y*image_height) the lower right point will |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
412 |
be at (right_x*image_width, bottom_y*image_height). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
413 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
414 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
415 |
left_x: float value between 0.0 and 1.0 (inclusive). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
416 |
top_y: float value between 0.0 and 1.0 (inclusive). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
417 |
right_x: float value between 0.0 and 1.0 (inclusive). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
418 |
bottom_y: float value between 0.0 and 1.0 (inclusive). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
419 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
420 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
421 |
TypeError if the args are not of type 'float'. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
422 |
BadRequestError when there is something wrong with the given bounding box |
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
423 |
or if MAX_TRANSFORMS_PER_REQUEST transforms have already been requested |
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
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parents:
828
diff
changeset
|
424 |
for this image. |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
425 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
426 |
self._validate_crop_arg(left_x, "left_x") |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
427 |
self._validate_crop_arg(top_y, "top_y") |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
428 |
self._validate_crop_arg(right_x, "right_x") |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
429 |
self._validate_crop_arg(bottom_y, "bottom_y") |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
430 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
431 |
if left_x >= right_x: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
432 |
raise BadRequestError("left_x must be less than right_x") |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
433 |
if top_y >= bottom_y: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
434 |
raise BadRequestError("top_y must be less than bottom_y") |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
435 |
|
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
436 |
self._check_transform_limits() |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
437 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
438 |
transform = images_service_pb.Transform() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
439 |
transform.set_crop_left_x(left_x) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
440 |
transform.set_crop_top_y(top_y) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
441 |
transform.set_crop_right_x(right_x) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
442 |
transform.set_crop_bottom_y(bottom_y) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
443 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
444 |
self._transforms.append(transform) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
445 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
446 |
def im_feeling_lucky(self): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
447 |
"""Automatically adjust image contrast and color levels. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
448 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
449 |
This is similar to the "I'm Feeling Lucky" button in Picasa. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
450 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
451 |
Raises: |
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
452 |
BadRequestError if MAX_TRANSFORMS_PER_REQUEST transforms have already |
2273
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
453 |
been requested for this image. |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
454 |
""" |
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
455 |
self._check_transform_limits() |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
456 |
transform = images_service_pb.Transform() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
457 |
transform.set_autolevels(True) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
458 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
459 |
self._transforms.append(transform) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
460 |
|
3031
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
461 |
def _set_imagedata(self, imagedata): |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
462 |
"""Fills in an ImageData PB from this Image instance. |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
463 |
|
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
464 |
Args: |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
465 |
imagedata: An ImageData PB instance |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
466 |
""" |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
467 |
if self._blob_key: |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
468 |
imagedata.set_content("") |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
469 |
imagedata.set_blob_key(self._blob_key) |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
470 |
else: |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
471 |
imagedata.set_content(self._image_data) |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
472 |
|
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
473 |
def execute_transforms(self, output_encoding=PNG): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
474 |
"""Perform transformations on given image. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
475 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
476 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
477 |
output_encoding: A value from OUTPUT_ENCODING_TYPES. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
478 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
479 |
Returns: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
480 |
str, image data after the transformations have been performed on it. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
481 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
482 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
483 |
BadRequestError when there is something wrong with the request |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
484 |
specifications. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
485 |
NotImageError when the image data given is not an image. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
486 |
BadImageError when the image data given is corrupt. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
487 |
LargeImageError when the image data given is too large to process. |
3031
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
488 |
InvalidBlobKeyError when the blob key provided is invalid. |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
489 |
TransformtionError when something errors during image manipulation. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
490 |
Error when something unknown, but bad, happens. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
491 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
492 |
if output_encoding not in OUTPUT_ENCODING_TYPES: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
493 |
raise BadRequestError("Output encoding type not in recognized set " |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
494 |
"%s" % OUTPUT_ENCODING_TYPES) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
495 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
496 |
if not self._transforms: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
497 |
raise BadRequestError("Must specify at least one transformation.") |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
498 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
499 |
request = images_service_pb.ImagesTransformRequest() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
500 |
response = images_service_pb.ImagesTransformResponse() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
501 |
|
3031
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
502 |
self._set_imagedata(request.mutable_image()) |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
503 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
504 |
for transform in self._transforms: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
505 |
request.add_transform().CopyFrom(transform) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
506 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
507 |
request.mutable_output().set_mime_type(output_encoding) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
508 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
509 |
try: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
510 |
apiproxy_stub_map.MakeSyncCall("images", |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
511 |
"Transform", |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
512 |
request, |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
513 |
response) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
514 |
except apiproxy_errors.ApplicationError, e: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
515 |
if (e.application_error == |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
516 |
images_service_pb.ImagesServiceError.BAD_TRANSFORM_DATA): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
517 |
raise BadRequestError() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
518 |
elif (e.application_error == |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
519 |
images_service_pb.ImagesServiceError.NOT_IMAGE): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
520 |
raise NotImageError() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
521 |
elif (e.application_error == |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
522 |
images_service_pb.ImagesServiceError.BAD_IMAGE_DATA): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
523 |
raise BadImageError() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
524 |
elif (e.application_error == |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
525 |
images_service_pb.ImagesServiceError.IMAGE_TOO_LARGE): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
526 |
raise LargeImageError() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
527 |
elif (e.application_error == |
3031
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
528 |
images_service_pb.ImagesServiceError.INVALID_BLOB_KEY): |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
529 |
raise InvalidBlobKeyError() |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
530 |
elif (e.application_error == |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
531 |
images_service_pb.ImagesServiceError.UNSPECIFIED_ERROR): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
532 |
raise TransformationError() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
533 |
else: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
534 |
raise Error() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
535 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
536 |
self._image_data = response.image().content() |
3031
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
537 |
self._blob_key = None |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
538 |
self._transforms = [] |
828
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
539 |
self._width = None |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
540 |
self._height = None |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
541 |
return self._image_data |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
542 |
|
828
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
543 |
@property |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
544 |
def width(self): |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
545 |
"""Gets the width of the image.""" |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
546 |
if self._width is None: |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
547 |
self._update_dimensions() |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
548 |
return self._width |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
549 |
|
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
550 |
@property |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
551 |
def height(self): |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
552 |
"""Gets the height of the image.""" |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
553 |
if self._height is None: |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
554 |
self._update_dimensions() |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
555 |
return self._height |
f5fd65cc3bf3
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
109
diff
changeset
|
556 |
|
2273
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
557 |
def histogram(self): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
558 |
"""Calculates the histogram of the image. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
559 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
560 |
Returns: 3 256-element lists containing the number of occurences of each |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
561 |
value of each color in the order RGB. As described at |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
562 |
http://en.wikipedia.org/wiki/Color_histogram for N = 256. i.e. the first |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
563 |
value of the first list contains the number of pixels with a red value of |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
564 |
0, the second the number with a red value of 1. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
565 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
566 |
Raises: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
567 |
NotImageError when the image data given is not an image. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
568 |
BadImageError when the image data given is corrupt. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
569 |
LargeImageError when the image data given is too large to process. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
570 |
Error when something unknown, but bad, happens. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
571 |
""" |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
572 |
request = images_service_pb.ImagesHistogramRequest() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
573 |
response = images_service_pb.ImagesHistogramResponse() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
574 |
|
3031
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
575 |
self._set_imagedata(request.mutable_image()) |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
576 |
|
2273
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
577 |
try: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
578 |
apiproxy_stub_map.MakeSyncCall("images", |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
579 |
"Histogram", |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
580 |
request, |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
581 |
response) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
582 |
except apiproxy_errors.ApplicationError, e: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
583 |
if (e.application_error == |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
584 |
images_service_pb.ImagesServiceError.NOT_IMAGE): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
585 |
raise NotImageError() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
586 |
elif (e.application_error == |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
587 |
images_service_pb.ImagesServiceError.BAD_IMAGE_DATA): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
588 |
raise BadImageError() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
589 |
elif (e.application_error == |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
590 |
images_service_pb.ImagesServiceError.IMAGE_TOO_LARGE): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
591 |
raise LargeImageError() |
3031
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
592 |
elif (e.application_error == |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
593 |
images_service_pb.ImagesServiceError.INVALID_BLOB_KEY): |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
594 |
raise InvalidBlobKeyError() |
2273
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
595 |
else: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
596 |
raise Error() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
597 |
histogram = response.histogram() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
598 |
return [histogram.red_list(), |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
599 |
histogram.green_list(), |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
600 |
histogram.blue_list()] |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
601 |
|
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
602 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
603 |
def resize(image_data, width=0, height=0, output_encoding=PNG): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
604 |
"""Resize a given image file maintaining the aspect ratio. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
605 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
606 |
If both width and height are specified, the more restricting of the two |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
607 |
values will be used when resizing the photo. The maximum dimension allowed |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
608 |
for both width and height is 4000 pixels. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
609 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
610 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
611 |
image_data: str, source image data. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
612 |
width: int, width (in pixels) to change the image width to. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
613 |
height: int, height (in pixels) to change the image height to. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
614 |
output_encoding: a value from OUTPUT_ENCODING_TYPES. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
615 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
616 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
617 |
TypeError when width or height not either 'int' or 'long' types. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
618 |
BadRequestError when there is something wrong with the given height or |
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
619 |
width. |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
620 |
Error when something went wrong with the call. See Image.ExecuteTransforms |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
621 |
for more details. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
622 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
623 |
image = Image(image_data) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
624 |
image.resize(width, height) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
625 |
return image.execute_transforms(output_encoding=output_encoding) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
626 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
627 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
628 |
def rotate(image_data, degrees, output_encoding=PNG): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
629 |
"""Rotate a given image a given number of degrees clockwise. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
630 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
631 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
632 |
image_data: str, source image data. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
633 |
degrees: value from ROTATE_DEGREE_VALUES. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
634 |
output_encoding: a value from OUTPUT_ENCODING_TYPES. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
635 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
636 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
637 |
TypeError when degrees is not either 'int' or 'long' types. |
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
638 |
BadRequestError when there is something wrong with the given degrees. |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
639 |
Error when something went wrong with the call. See Image.ExecuteTransforms |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
640 |
for more details. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
641 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
642 |
image = Image(image_data) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
643 |
image.rotate(degrees) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
644 |
return image.execute_transforms(output_encoding=output_encoding) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
645 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
646 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
647 |
def horizontal_flip(image_data, output_encoding=PNG): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
648 |
"""Flip the image horizontally. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
649 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
650 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
651 |
image_data: str, source image data. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
652 |
output_encoding: a value from OUTPUT_ENCODING_TYPES. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
653 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
654 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
655 |
Error when something went wrong with the call. See Image.ExecuteTransforms |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
656 |
for more details. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
657 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
658 |
image = Image(image_data) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
659 |
image.horizontal_flip() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
660 |
return image.execute_transforms(output_encoding=output_encoding) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
661 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
662 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
663 |
def vertical_flip(image_data, output_encoding=PNG): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
664 |
"""Flip the image vertically. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
665 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
666 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
667 |
image_data: str, source image data. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
668 |
output_encoding: a value from OUTPUT_ENCODING_TYPES. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
669 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
670 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
671 |
Error when something went wrong with the call. See Image.ExecuteTransforms |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
672 |
for more details. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
673 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
674 |
image = Image(image_data) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
675 |
image.vertical_flip() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
676 |
return image.execute_transforms(output_encoding=output_encoding) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
677 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
678 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
679 |
def crop(image_data, left_x, top_y, right_x, bottom_y, output_encoding=PNG): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
680 |
"""Crop the given image. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
681 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
682 |
The four arguments are the scaling numbers to describe the bounding box |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
683 |
which will crop the image. The upper left point of the bounding box will |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
684 |
be at (left_x*image_width, top_y*image_height) the lower right point will |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
685 |
be at (right_x*image_width, bottom_y*image_height). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
686 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
687 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
688 |
image_data: str, source image data. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
689 |
left_x: float value between 0.0 and 1.0 (inclusive). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
690 |
top_y: float value between 0.0 and 1.0 (inclusive). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
691 |
right_x: float value between 0.0 and 1.0 (inclusive). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
692 |
bottom_y: float value between 0.0 and 1.0 (inclusive). |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
693 |
output_encoding: a value from OUTPUT_ENCODING_TYPES. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
694 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
695 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
696 |
TypeError if the args are not of type 'float'. |
1278
a7766286a7be
Load /Users/solydzajs/Downloads/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
828
diff
changeset
|
697 |
BadRequestError when there is something wrong with the given bounding box. |
109
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
698 |
Error when something went wrong with the call. See Image.ExecuteTransforms |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
699 |
for more details. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
700 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
701 |
image = Image(image_data) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
702 |
image.crop(left_x, top_y, right_x, bottom_y) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
703 |
return image.execute_transforms(output_encoding=output_encoding) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
704 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
705 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
706 |
def im_feeling_lucky(image_data, output_encoding=PNG): |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
707 |
"""Automatically adjust image levels. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
708 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
709 |
This is similar to the "I'm Feeling Lucky" button in Picasa. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
710 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
711 |
Args: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
712 |
image_data: str, source image data. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
713 |
output_encoding: a value from OUTPUT_ENCODING_TYPES. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
714 |
|
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
715 |
Raises: |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
716 |
Error when something went wrong with the call. See Image.ExecuteTransforms |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
717 |
for more details. |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
718 |
""" |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
719 |
image = Image(image_data) |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
720 |
image.im_feeling_lucky() |
620f9b141567
Load ../../google_appengine into trunk/thirdparty/google_appengine.
Todd Larsen <tlarsen@google.com>
parents:
diff
changeset
|
721 |
return image.execute_transforms(output_encoding=output_encoding) |
2273
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
722 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
723 |
def composite(inputs, width, height, color=0, output_encoding=PNG): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
724 |
"""Composite one or more images onto a canvas. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
725 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
726 |
Args: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
727 |
inputs: a list of tuples (image_data, x_offset, y_offset, opacity, anchor) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
728 |
where |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
729 |
image_data: str, source image data. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
730 |
x_offset: x offset in pixels from the anchor position |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
731 |
y_offset: y offset in piyels from the anchor position |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
732 |
opacity: opacity of the image specified as a float in range [0.0, 1.0] |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
733 |
anchor: anchoring point from ANCHOR_POINTS. The anchor point of the image |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
734 |
is aligned with the same anchor point of the canvas. e.g. TOP_RIGHT would |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
735 |
place the top right corner of the image at the top right corner of the |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
736 |
canvas then apply the x and y offsets. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
737 |
width: canvas width in pixels. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
738 |
height: canvas height in pixels. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
739 |
color: canvas background color encoded as a 32 bit unsigned int where each |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
740 |
color channel is represented by one byte in order ARGB. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
741 |
output_encoding: a value from OUTPUT_ENCODING_TYPES. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
742 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
743 |
Returns: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
744 |
str, image data of the composited image. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
745 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
746 |
Raises: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
747 |
TypeError If width, height, color, x_offset or y_offset are not of type |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
748 |
int or long or if opacity is not a float |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
749 |
BadRequestError If more than MAX_TRANSFORMS_PER_REQUEST compositions have |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
750 |
been requested, if the canvas width or height is greater than 4000 or less |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
751 |
than or equal to 0, if the color is invalid or if for any composition |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
752 |
option, the opacity is outside the range [0,1] or the anchor is invalid. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
753 |
""" |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
754 |
if (not isinstance(width, (int, long)) or |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
755 |
not isinstance(height, (int, long)) or |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
756 |
not isinstance(color, (int, long))): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
757 |
raise TypeError("Width, height and color must be integers.") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
758 |
if output_encoding not in OUTPUT_ENCODING_TYPES: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
759 |
raise BadRequestError("Output encoding type '%s' not in recognized set " |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
760 |
"%s" % (output_encoding, OUTPUT_ENCODING_TYPES)) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
761 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
762 |
if not inputs: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
763 |
raise BadRequestError("Must provide at least one input") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
764 |
if len(inputs) > MAX_COMPOSITES_PER_REQUEST: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
765 |
raise BadRequestError("A maximum of %d composition operations can be" |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
766 |
"performed in a single request" % |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
767 |
MAX_COMPOSITES_PER_REQUEST) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
768 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
769 |
if width <= 0 or height <= 0: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
770 |
raise BadRequestError("Width and height must be > 0.") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
771 |
if width > 4000 or height > 4000: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
772 |
raise BadRequestError("Width and height must be <= 4000.") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
773 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
774 |
if color > 0xffffffff or color < 0: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
775 |
raise BadRequestError("Invalid color") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
776 |
if color >= 0x80000000: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
777 |
color -= 0x100000000 |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
778 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
779 |
image_map = {} |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
780 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
781 |
request = images_service_pb.ImagesCompositeRequest() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
782 |
response = images_service_pb.ImagesTransformResponse() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
783 |
for (image, x, y, opacity, anchor) in inputs: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
784 |
if not image: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
785 |
raise BadRequestError("Each input must include an image") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
786 |
if (not isinstance(x, (int, long)) or |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
787 |
not isinstance(y, (int, long)) or |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
788 |
not isinstance(opacity, (float))): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
789 |
raise TypeError("x_offset, y_offset must be integers and opacity must" |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
790 |
"be a float") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
791 |
if x > 4000 or x < -4000: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
792 |
raise BadRequestError("xOffsets must be in range [-4000, 4000]") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
793 |
if y > 4000 or y < -4000: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
794 |
raise BadRequestError("yOffsets must be in range [-4000, 4000]") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
795 |
if opacity < 0 or opacity > 1: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
796 |
raise BadRequestError("Opacity must be in the range 0.0 to 1.0") |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
797 |
if anchor not in ANCHOR_TYPES: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
798 |
raise BadRequestError("Anchor type '%s' not in recognized set %s" % |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
799 |
(anchor, ANCHOR_TYPES)) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
800 |
if image not in image_map: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
801 |
image_map[image] = request.image_size() |
3031
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
802 |
|
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
803 |
if isinstance(image, Image): |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
804 |
image._set_imagedata(request.add_image()) |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
805 |
else: |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
806 |
request.add_image().set_content(image) |
2273
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
807 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
808 |
option = request.add_options() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
809 |
option.set_x_offset(x) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
810 |
option.set_y_offset(y) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
811 |
option.set_opacity(opacity) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
812 |
option.set_anchor(anchor) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
813 |
option.set_source_index(image_map[image]) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
814 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
815 |
request.mutable_canvas().mutable_output().set_mime_type(output_encoding) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
816 |
request.mutable_canvas().set_width(width) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
817 |
request.mutable_canvas().set_height(height) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
818 |
request.mutable_canvas().set_color(color) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
819 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
820 |
try: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
821 |
apiproxy_stub_map.MakeSyncCall("images", |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
822 |
"Composite", |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
823 |
request, |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
824 |
response) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
825 |
except apiproxy_errors.ApplicationError, e: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
826 |
if (e.application_error == |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
827 |
images_service_pb.ImagesServiceError.BAD_TRANSFORM_DATA): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
828 |
raise BadRequestError() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
829 |
elif (e.application_error == |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
830 |
images_service_pb.ImagesServiceError.NOT_IMAGE): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
831 |
raise NotImageError() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
832 |
elif (e.application_error == |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
833 |
images_service_pb.ImagesServiceError.BAD_IMAGE_DATA): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
834 |
raise BadImageError() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
835 |
elif (e.application_error == |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
836 |
images_service_pb.ImagesServiceError.IMAGE_TOO_LARGE): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
837 |
raise LargeImageError() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
838 |
elif (e.application_error == |
3031
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
839 |
images_service_pb.ImagesServiceError.INVALID_BLOB_KEY): |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
840 |
raise InvalidBlobKeyError() |
7678f72140e6
Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.
Sverre Rabbelier <srabbelier@gmail.com>
parents:
2273
diff
changeset
|
841 |
elif (e.application_error == |
2273
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
842 |
images_service_pb.ImagesServiceError.UNSPECIFIED_ERROR): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
843 |
raise TransformationError() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
844 |
else: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
845 |
raise Error() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
846 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
847 |
return response.image().content() |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
848 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
849 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
850 |
def histogram(image_data): |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
851 |
"""Calculates the histogram of the given image. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
852 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
853 |
Args: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
854 |
image_data: str, source image data. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
855 |
Returns: 3 256-element lists containing the number of occurences of each |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
856 |
value of each color in the order RGB. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
857 |
|
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
858 |
Raises: |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
859 |
NotImageError when the image data given is not an image. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
860 |
BadImageError when the image data given is corrupt. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
861 |
LargeImageError when the image data given is too large to process. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
862 |
Error when something unknown, but bad, happens. |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
863 |
""" |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
864 |
image = Image(image_data) |
e4cb9c53db3e
Load /Users/solydzajs/Desktop/google_appengine into
Pawel Solyga <Pawel.Solyga@gmail.com>
parents:
1278
diff
changeset
|
865 |
return image.histogram() |