This class is an extension to Fl_GIF_Image and allows loading and viewing of animated GIF images.

Fl_Anim_GIF_Image is a complete implementation of an FLTK image class (derived from Fl_GIF_Image) capable to be used as shared image, tiled image, scalable image, like any other FLTK image class.

Fl_GIF_Image's code has been modified to load/parse all images of an image file (instead of only the first image) when instructed.
Fl_Anim_GIF_Image utilises this and stores all images (frames) on its own as RGB images and automatically starts animating them.
It needs be told a 'canvas' widget, wherein to draw the images to.

Full docs, demo and test programs are included.

You can view, comment on, or merge this pull request online at:

  https://github.com/fltk/fltk/pull/375

Commit Summary

• e4e10d0 +Fl_Anim_GIF_Image class and test programs - TBC
• 53b4f73 Add missing CMake dependencies/files
• 45a0d1c Missing include
• 4d96b5f ~start animation immediately is the default
• e24e610 Fix build regression from previous commit
• ed28691 Fix build regression from previous commit ctd
• e1ade09 Towards FLTK CMP...
• 9e2c34b Towards FLTK CMP...
• e8842f8 Towards FLTK CMP...
• c01af75 Towards FLTK CMP...
• 46022bc Towards FLTK CMP...
• e2a16e3 move most animgifimage demo programs from 'test' to 'examples' dir
• 3041cff move most animgifimage demo programs from 'test' to 'examples' dir ctd.
• 91d899a Fix optimized mode scaling
• 9aa9043 Fix bilinear scaling in resize example
• a5e4d6a tune examples
• b2af893 Fix/extend demo menu
• a70ecbb Towards FLTK CMP...
• 1feb7e4 Towards FLTK CMP...
• 642bb10 Correction in doc
• 3fda6c2 play example: add zoom event
• 6309719 Load via extended FLKT Fl_GIF_Image.
• bc754ac Cleanup Fl_GIF_Image after changes
• 8662ef4 Fix bug (with FLTK decoding) when first frame has not screen dimensions
• 3e644c4 remove gif_load (can be restored from archive anyway)
• 03f3d29 remove gif_load usage
• 8eaf64e Some reformatting/renaming/comments
• f811978 examples: check ld()
• 77f491e formatting
• 240261a change some naming
• be32ca4 minor simplification
• 9a02b79 +Fl_Anim_GIF_Image class and test programs - TBC
• 8a6c82a Add missing CMake dependencies/files
• fe222ec Missing include
• 4c883bc ~start animation immediately is the default
• 0c258f2 Fix build regression from previous commit
• 3c66c0f Fix build regression from previous commit ctd
• 6bb4d54 Towards FLTK CMP...
• 0d82fbc Towards FLTK CMP...
• b8423a1 Towards FLTK CMP...
• d5b06ee Towards FLTK CMP...
• 6cc3f95 Towards FLTK CMP...
• 18e8004 move most animgifimage demo programs from 'test' to 'examples' dir
• 9c7389a move most animgifimage demo programs from 'test' to 'examples' dir ctd.
• 7e13f74 Fix optimized mode scaling
• 1e67cb7 Fix bilinear scaling in resize example
• e2269ef tune examples
• 2559aab Fix/extend demo menu
• cfa527b Towards FLTK CMP...
• 52d8e3e Towards FLTK CMP...
• 43d9638 Correction in doc
• 60d83a6 play example: add zoom event
• e845108 Load via extended FLKT Fl_GIF_Image.
• 7770c16 Cleanup Fl_GIF_Image after changes
• c10c530 Fix bug (with FLTK decoding) when first frame has not screen dimensions
• 634ad79 remove gif_load (can be restored from archive anyway)
• 679e3b2 remove gif_load usage
• d836f82 Some reformatting/renaming/comments
• ca56852 examples: check ld()
• e1db7d4 formatting
• 94273f7 change some naming
• 55faf15 minor simplification
• 80a667b Merge branch 'Fl_Anim_GIF_Image' of github.com:wcout/fltk into Fl_Anim_GIF_Image
• 50a66a7 naming (CMP)
• f2ce788 restore lost comments
• a8bfb99 document Fl_GIF_Image::animate
• 42b9604 better diffability
• 53e34d3 better diffability
• bb13e2e add special coded GIF that didn't work
• 6b7a5b1 Fix GIF's with wrong code size
• dadd84d Code readability refactoring
• 6de854c cosmetic
• c16b2d0 Tune documentation
• 363b3e5 Typo
• dfb5772 improve code separation for new load_gif() methods in Fl_GIF_Image; add comments
• 675caf7 Merge with master
• 25f1e68 Fix indentation
• aee03aa Fix single frame deaturate/color_abverage
• 5ad86e9 Fix testprogram opening files containing '.gif' somewhere in name
• 552ee0b show #frames in test program
• de9889b Finally found correct way to skip bytes at end of image descriptor
• eff077c Merge branch 'fltk:master' into Fl_Anim_GIF_Image
• ffbb7c6 CMP Header
• 37baf18 const
• a968082 add statistics to testprogram when run with directory (testsuite)
• 35c33d8 Refactor Fl_GIF_Image::load_gif_(): Move LZW decoding and XPM conversion to own method/function
• 36bc8e8 not a widget, but a class

File Changes

(25 files)

• A FL/Fl_Anim_GIF_Image.H (295)
• M FL/Fl_GIF_Image.H (45)
• M examples/CMakeLists.txt (3)
• M examples/Makefile (6)
• A examples/animgifimage-play.cxx (240)
• A examples/animgifimage-resize.cxx (184)
• A examples/animgifimage-simple.cxx (40)
• M src/CMakeLists.txt (1)
• A src/Fl_Anim_GIF_Image.cxx (967)
• M src/Fl_GIF_Image.cxx (600)
• M src/Makefile (1)
• M src/fl_images_core.cxx (4)
• M src/makedepend (5)
• M test/CMakeLists.txt (5)
• M test/Makefile (15)
• A test/animgifimage.cxx (298)
• M test/demo.menu (3)
• M test/help_dialog.cxx (11)
• M test/help_dialog.html (3)
• M test/pixmap.cxx (19)
• M test/pixmap_browser.cxx (19)
• A test/pixmaps/fltk_animated.gif (0)
• A test/pixmaps/fltk_animated2.gif (0)
• A test/pixmaps/fltk_animated3.gif (0)
• M test/tiled_image.cxx (12)

Patch Links:

• https://github.com/fltk/fltk/pull/375.patch
• https://github.com/fltk/fltk/pull/375.diff

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