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7a5f914866
2003-09-06 Michael Natterer <mitch@gimp.org> To optimize duplicate and/or wrong image updates away, introduced new policy that a child object must never explicitly update or invalidate its parent object (just like the GUI is not updated explicitly by the core): * app/core/gimpdrawable.[ch]: added new signal GimpDrawable::update(). Never update or invalidate the image when the drawable is updated or invalidated. (gimp_drawable_set_visible): don't gimp_drawable_update() the drawable since its pixels have not changed. * app/core/gimpimage.[ch]: connect to the "add" and "remove" signals of the layers and channels containers. Also connect to the "update" and "visibility_changed" signals of all drawables in these containers (optimizes away updates issued by drawables which are not yet added to the image and updates of the selection mask). Also, don't propagate updates to the image if the emitting drawable is invisible (optimizes away updates issued by invisible drawables). (gimp_image_add_layer,channel) (gimp_image_remove_layer,channel): don't update the image since that's done by our "add" and "remove" handlers now. (gimp_image_position_layer,channel): update just the image, not the drawable since its pixels have not changed. (gimp_image_real_colormap_changed) (gimp_image_set_component_visible): always call gimp_image_update() *and* gimp_viewable_invalidate_preview() to get everything updated, since update and invalidate of images are not connected. * app/core/gimpimage-undo-push.c (undo_pop_layer,channel): don't update the drawable since (a) its pixels don't change and (b) the image updates itself upon adding/removing now. (undo_pop_layer_mod): replaced gimp_image_update() by gimp_drawable_update() (just for consistency with other similar functions). * app/core/gimplayer.c: connect to "update" of the layer mask and issue updates on the layer if the mask update has any effect on the projection. (gimp_layer_create_mask): don't set the mask's offsets here since they may be different when we later add the mask to the layer. * app/core/gimplayermask.c (gimp_layer_mask_set_layer): set the mask offsets here instead. * app/core/gimpchannel.c (gimp_channel_translate): update the channel even if push_undo == FALSE. * app/paint/gimppaintcore.c (gimp_paint_core_finish) * app/tools/gimpinktool.c (ink_finish): invalidate both the drawable and the image preview since invalidating the drawable doesn't invalidate the image any more. * app/text/gimptextlayer.c (gimp_text_layer_render_now): also update the new extents of the text layer, not only the old one. (gimp_text_layer_render_layout): don't update the drawable since gimp_drawable_fill() already updated it.
142 lines
5.9 KiB
C
142 lines
5.9 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_DRAWABLE_H__
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#define __GIMP_DRAWABLE_H__
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#include "gimpitem.h"
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#define GIMP_TYPE_DRAWABLE (gimp_drawable_get_type ())
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#define GIMP_DRAWABLE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_DRAWABLE, GimpDrawable))
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#define GIMP_DRAWABLE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_DRAWABLE, GimpDrawableClass))
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#define GIMP_IS_DRAWABLE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_DRAWABLE))
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#define GIMP_IS_DRAWABLE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_DRAWABLE))
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#define GIMP_DRAWABLE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_DRAWABLE, GimpDrawableClass))
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typedef struct _GimpDrawableClass GimpDrawableClass;
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struct _GimpDrawable
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{
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GimpItem parent_instance;
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TileManager *tiles; /* tiles for drawable data */
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gboolean visible; /* controls visibility */
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gint bytes; /* bytes per pixel */
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GimpImageType type; /* type of drawable */
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gboolean has_alpha; /* drawable has alpha */
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/* Preview variables */
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GSList *preview_cache; /* preview caches of the channel */
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gboolean preview_valid; /* is the preview valid? */
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};
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struct _GimpDrawableClass
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{
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GimpItemClass parent_class;
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/* signals */
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void (* update) (GimpDrawable *drawable,
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gint x,
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gint y,
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gint width,
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gint height);
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void (* visibility_changed) (GimpDrawable *drawable);
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void (* alpha_changed) (GimpDrawable *drawable);
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/* virtual functions */
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void (* invalidate_boundary) (GimpDrawable *drawable);
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};
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/* drawable access functions */
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GType gimp_drawable_get_type (void) G_GNUC_CONST;
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void gimp_drawable_configure (GimpDrawable *drawable,
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GimpImage *gimage,
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gint offset_x,
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gint offset_y,
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gint width,
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gint height,
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GimpImageType type,
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const gchar *name);
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void gimp_drawable_update (GimpDrawable *drawable,
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gint x,
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gint y,
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gint width,
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gint height);
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void gimp_drawable_push_undo (GimpDrawable *drawable,
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const gchar *undo_desc,
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gint x1,
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gint y1,
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gint x2,
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gint y2,
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TileManager *tiles,
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gboolean sparse);
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void gimp_drawable_merge_shadow (GimpDrawable *drawable,
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gboolean push_undo,
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const gchar *undo_desc);
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void gimp_drawable_fill (GimpDrawable *drawable,
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const GimpRGB *color);
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void gimp_drawable_fill_by_type (GimpDrawable *drawable,
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GimpContext *context,
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GimpFillType fill_type);
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gboolean gimp_drawable_mask_bounds (GimpDrawable *drawable,
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gint *x1,
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gint *y1,
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gint *x2,
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gint *y2);
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gboolean gimp_drawable_has_alpha (const GimpDrawable *drawable);
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GimpImageType gimp_drawable_type (const GimpDrawable *drawable);
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GimpImageType gimp_drawable_type_with_alpha (const GimpDrawable *drawable);
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gboolean gimp_drawable_is_rgb (const GimpDrawable *drawable);
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gboolean gimp_drawable_is_gray (const GimpDrawable *drawable);
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gboolean gimp_drawable_is_indexed (const GimpDrawable *drawable);
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TileManager * gimp_drawable_data (const GimpDrawable *drawable);
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TileManager * gimp_drawable_shadow (GimpDrawable *drawable);
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gint gimp_drawable_bytes (const GimpDrawable *drawable);
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gint gimp_drawable_bytes_with_alpha (const GimpDrawable *drawable);
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gboolean gimp_drawable_get_visible (const GimpDrawable *drawable);
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void gimp_drawable_set_visible (GimpDrawable *drawable,
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gboolean visible,
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gboolean push_undo);
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void gimp_drawable_alpha_changed (GimpDrawable *drawable);
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void gimp_drawable_invalidate_boundary (GimpDrawable *drawable);
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guchar * gimp_drawable_cmap (const GimpDrawable *drawable);
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guchar * gimp_drawable_get_color_at (GimpDrawable *drawable,
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gint x,
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gint y);
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#endif /* __GIMP_DRAWABLE_H__ */
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