c8b4394d71
2003-02-20 Michael Natterer <mitch@gimp.org> Reimplemented the undo history: * app/Makefile.am * app/undo_history.[ch]: removed. Changes/cleanups to the undo system to enable/simplify the new undo history implementation: * app/core/core-types.h: removed enum undo_event_t. Removed the GimpImage parameter from GimpUndoPopFunc and GimpUndoFreeFunc because GimpUndo has a GimpImage pointer now (see below). * app/core/core-enums.[ch]: added enum GimpUndoEvent. Added an enum value for REDO_EXPIRED. * app/core/gimpimage.[ch]: added a GimpUndo pointer to the "undo_event" signal which needs to be passed for all events except UNDO_FREE. * app/display/gimpdisplayshell-handlers.c: changed accordingly. * app/core/gimpundo.[ch]: added a GimpImage pointer to the GimpUndo struct. Removed GimpImage parameters all over the place. Added preview stuff. The preview creation needs to be triggered explicitly using gimp_undo_create_preview() because the GimpUndo can't know when it's possible to create the preview. * app/core/gimpimage-undo-push.c * app/paint/gimppaintcore-undo.c * app/tools/gimptransformtool-undo.c: changed accordingly, cleanup. * app/core/gimpundostack.[ch]: ditto. Return the freed undo from gimp_undo_stack_free_bottom(). Removed unused container signal handlers. * app/core/gimpimage-undo.c: free the redo stack the same way old undos are freed (from bottom up). Emit "undo_event" with event == REDO_EXPIRED for each removed redo. * app/core/gimpmarshal.list: added new marshallers. New undo history implementation: * app/widgets/Makefile.am * app/widgets/widgets-types.h * app/widgets/gimpundoeditor.[ch] * app/widgets/gimpundopreview.[ch]: new widgets for the undo step previews and the history itself. * app/widgets/gimppreview-utils.c: added GimpUndoPreview to the list of possible preview types. * app/gui/dialogs-constructors.[ch] * app/gui/dialogs-menu.c * app/gui/dialogs.c * app/gui/image-menu.c * app/gui/toolbox-menu.c: removed the old and added the new undo history to the dialog factory and the various dialog menus. * app/widgets/gimpdnd.[ch]: don't warn if a GType has no corresponding DND type. Instead, return FALSE from the function that failed. * app/widgets/gimppreview.c: check the return value of gimpdnd functions. Not only add drag sources but also remove them when no longer needed. * app/widgets/gimpselectioneditor.h: removed unneeded inclusion of "gui/gui-types.h".
100 lines
3.7 KiB
C
100 lines
3.7 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef __GIMP_UNDO_H__
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#define __GIMP_UNDO_H__
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#include "gimpviewable.h"
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struct _GimpUndoAccumulator
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{
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gboolean mode_changed;
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gboolean size_changed;
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gboolean resolution_changed;
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gboolean unit_changed;
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gboolean mask_changed;
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gboolean qmask_changed;
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gboolean alpha_changed;
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};
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#define GIMP_TYPE_UNDO (gimp_undo_get_type ())
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#define GIMP_UNDO(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_UNDO, GimpUndo))
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#define GIMP_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_UNDO, GimpUndoClass))
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#define GIMP_IS_UNDO(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_UNDO))
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#define GIMP_IS_UNDO_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_UNDO))
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#define GIMP_UNDO_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_UNDO, GimpUndoClass))
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typedef struct _GimpUndoClass GimpUndoClass;
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struct _GimpUndo
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{
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GimpViewable parent_instance;
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GimpImage *gimage; /* the image this undo is part of */
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GimpUndoType undo_type; /* undo type */
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gpointer data; /* data to implement the undo */
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gsize size; /* size of undo item */
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gboolean dirties_image; /* TRUE if undo mutates image */
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GimpUndoPopFunc pop_func; /* function pointer to undo pop proc */
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GimpUndoFreeFunc free_func; /* function pointer to free undo data */
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TempBuf *preview;
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guint preview_idle_id;
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};
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struct _GimpUndoClass
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{
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GimpViewableClass parent_class;
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void (* pop) (GimpUndo *undo,
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GimpUndoMode undo_mode,
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GimpUndoAccumulator *accum);
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void (* free) (GimpUndo *undo,
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GimpUndoMode undo_mode);
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};
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GType gimp_undo_get_type (void) G_GNUC_CONST;
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GimpUndo * gimp_undo_new (GimpImage *gimage,
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GimpUndoType undo_type,
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const gchar *name,
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gpointer data,
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gsize size,
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gboolean dirties_image,
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GimpUndoPopFunc pop_func,
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GimpUndoFreeFunc free_func);
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void gimp_undo_pop (GimpUndo *undo,
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GimpUndoMode undo_mode,
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GimpUndoAccumulator *accum);
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void gimp_undo_free (GimpUndo *undo,
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GimpUndoMode undo_mode);
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void gimp_undo_create_preview (GimpUndo *undo,
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gboolean create_now);
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#endif /* __GIMP_UNDO_H__ */
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