equal
deleted
inserted
replaced
17 maskedPixelsAre0 fileName imageSequence' |
17 maskedPixelsAre0 fileName imageSequence' |
18 classVariableNames:'Lobby DitherAlgorithm NumberOfDitherColors |
18 classVariableNames:'Lobby DitherAlgorithm NumberOfDitherColors |
19 CollectGarbageWhenRunningOutOfColors ImageNotFoundQuerySignal |
19 CollectGarbageWhenRunningOutOfColors ImageNotFoundQuerySignal |
20 BadImageFormatQuerySignal ImageSaveErrorSignal |
20 BadImageFormatQuerySignal ImageSaveErrorSignal |
21 FileCreationErrorSignal CannotRepresentImageSignal |
21 FileCreationErrorSignal CannotRepresentImageSignal |
22 InformationLostQuerySignal' |
22 InformationLostQuerySignal UnrepresentableColorSignal' |
23 poolDictionaries:'' |
23 poolDictionaries:'' |
24 category:'Graphics-Images' |
24 category:'Graphics-Images' |
25 ! |
25 ! |
26 |
26 |
27 !Image class methodsFor:'documentation'! |
27 !Image class methodsFor:'documentation'! |
628 InformationLostQuerySignal := QuerySignal new. |
628 InformationLostQuerySignal := QuerySignal new. |
629 InformationLostQuerySignal nameClass:self message:#informationLostQuerySignal. |
629 InformationLostQuerySignal nameClass:self message:#informationLostQuerySignal. |
630 |
630 |
631 BadImageFormatQuerySignal := QuerySignal new. |
631 BadImageFormatQuerySignal := QuerySignal new. |
632 BadImageFormatQuerySignal nameClass:self message:#badImageFormatQuerySignal. |
632 BadImageFormatQuerySignal nameClass:self message:#badImageFormatQuerySignal. |
|
633 |
|
634 UnrepresentableColorSignal := ErrorSignal newSignalMayProceed:true. |
|
635 UnrepresentableColorSignal nameClass:self message:#unrepresentableColorSignal. |
633 ] |
636 ] |
634 |
637 |
635 "Modified: 27.6.1997 / 16:44:43 / cg" |
638 "Modified: 27.6.1997 / 16:44:43 / cg" |
636 ! |
639 ! |
637 |
640 |
1095 to proceed or abort the saving." |
1098 to proceed or abort the saving." |
1096 |
1099 |
1097 ^ InformationLostQuerySignal |
1100 ^ InformationLostQuerySignal |
1098 |
1101 |
1099 "Created: 27.2.1997 / 12:43:50 / cg" |
1102 "Created: 27.2.1997 / 12:43:50 / cg" |
|
1103 ! |
|
1104 |
|
1105 unrepresentableColorSignal |
|
1106 "return the signal, which is raised if some color is not |
|
1107 representable in the image (when storing a pixel)." |
|
1108 |
|
1109 ^ UnrepresentableColorSignal |
|
1110 |
|
1111 "Created: 1.2.1997 / 14:40:29 / cg" |
1100 ! ! |
1112 ! ! |
1101 |
1113 |
1102 !Image class methodsFor:'cleanup'! |
1114 !Image class methodsFor:'cleanup'! |
1103 |
1115 |
1104 releaseResourcesOnDevice:aDevice |
1116 releaseResourcesOnDevice:aDevice |
2328 (it is meant to access individual pixels - for example, in a bitmap editor)" |
2340 (it is meant to access individual pixels - for example, in a bitmap editor)" |
2329 |
2341 |
2330 |pixel| |
2342 |pixel| |
2331 |
2343 |
2332 pixel := self valueFromColor:aColor. |
2344 pixel := self valueFromColor:aColor. |
|
2345 pixel isNil ifTrue:[ |
|
2346 ^ UnrepresentableColorSignal raiseErrorString:'cannot store color - not in colormap'. |
|
2347 ]. |
2333 self pixelAtX:x y:y put:pixel. |
2348 self pixelAtX:x y:y put:pixel. |
2334 |
2349 |
2335 "Modified: 24.4.1997 / 17:36:20 / cg" |
2350 "Modified: 24.4.1997 / 17:36:20 / cg" |
2336 ! |
2351 ! |
2337 |
2352 |
2349 |
2364 |
2350 self obsoleteMethodWarning. |
2365 self obsoleteMethodWarning. |
2351 bytes := aByteArray |
2366 bytes := aByteArray |
2352 |
2367 |
2353 "Modified: 24.4.1997 / 17:38:18 / cg" |
2368 "Modified: 24.4.1997 / 17:38:18 / cg" |
|
2369 ! |
|
2370 |
|
2371 maskAt:aPoint |
|
2372 "retrieve the maskValue at aPoint - an integer number which is |
|
2373 0 for masked pixels (invisible), 1 for unmasked (visible). |
|
2374 For images without mask, 1 is returned for all pixels." |
|
2375 |
|
2376 ^ self maskAtX:aPoint x y:aPoint y |
|
2377 ! |
|
2378 |
|
2379 maskAtX:x y:y |
|
2380 "retrieve the maskValue at aPoint - an integer number which is |
|
2381 0 for masked pixels (invisible), 1 for unmasked (visible). |
|
2382 For images without mask, 1 is returned for all pixels." |
|
2383 |
|
2384 mask isNil ifTrue:[^ 1]. |
|
2385 ^ mask pixelAtX:x y:y |
2354 ! |
2386 ! |
2355 |
2387 |
2356 pixelAtX:x y:y |
2388 pixelAtX:x y:y |
2357 "retrieve the pixelValue at aPoint; return an integer number. |
2389 "retrieve the pixelValue at aPoint; return an integer number. |
2358 Pixels start at 0/0 for upper left pixel, and end at |
2390 Pixels start at 0/0 for upper left pixel, and end at |
11320 ! ! |
11352 ! ! |
11321 |
11353 |
11322 !Image class methodsFor:'documentation'! |
11354 !Image class methodsFor:'documentation'! |
11323 |
11355 |
11324 version |
11356 version |
11325 ^ '$Header: /cvs/stx/stx/libview/Image.st,v 1.246 1998-05-07 17:41:36 cg Exp $' |
11357 ^ '$Header: /cvs/stx/stx/libview/Image.st,v 1.247 1998-07-25 16:40:45 cg Exp $' |
11326 ! ! |
11358 ! ! |
11327 Image initialize! |
11359 Image initialize! |