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Martin Nordholts authored
2008-08-03 Martin Nordholts <martinn@svn.gnome.org> Further work for completing bug #362915 that makes changes to the image size (e.g when cropping) be much more nicely handled by display shell. * app/core/gimpimage.[ch]: Add new signal GimpImage::size-changed-detailed that is emited whenever GimpViewable::size-changed is. The new signal provides additional information, namely the previous origin relative to the current origin. Cliens choose what specific signal to listen to depending on how much info they need. * app/display/gimpdisplayshell-handlers.c: Connect to GimpImage::size-changed-detailed instead of GimpViewable::size-changed since the shell wants information about the previous image origin. (gimp_display_shell_resolution_changed_handler): Use gimp_display_shell_scale_resize() instead to avoid display garbage. * app/display/gimpdisplayshell-scale.[ch]: Add new utility function gimp_display_shell_center_image_on_next_size_allocate(). * app/display/gimpdisplayshell-scroll.[ch] (gimp_display_shell_handle_size_changed_detailed): New function that replaces logic in gimp_display_shell_handle_size_changed and that takes previous-origin of the image into account and adjusts the offset so that the image content that remains doesn't move. If the window is resized on image resize, just center the image afterwards. * app/core/gimpimage-undo-push.[ch] (gimp_image_undo_push_image_size): Add previous-origin paremeters. * app/core/gimpimageundo.[ch]: Add and manage previous-origin properties so that the display shell offset can be appropriately adjusted also when undoing. * app/core/gimpundo.h * app/core/gimpimage-undo.c: Add previous_origin members to the undo accumulator and emit that information when the size of the image changes due to the undo. * app/core/gimpimage-crop.c (gimp_image_crop) * app/core/gimpimage-scale.c (gimp_image_scale) * app/core/gimpimage-rotate.c (gimp_image_rotate) * app/core/gimpimage-resize.c (gimp_image_resize_with_layers): Supply information about the previous-origin of the image to the size-changed signals and the undo system. svn path=/trunk/; revision=26354
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