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https://gitlab.gnome.org/GNOME/gimp
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b53aa45a76
2006-08-29 Michael Natterer <mitch@gimp.org> Changed GimpViewable preview rendering to have a context to get FG/BG/whatever from. Use the context to enable dynamic FG/BG colors in gradients. Fixes bug #127676 and bug #352214. Addresses bug #128367 (doesn't fix it because there's no loading/saving and no GUI yet). * app/core/core-enums.[ch]: added enum GimpGradientColor to enable specifying gradient colors in terms of foreground and background. * app/core/gimpgradient.[ch]: added color_type members to the GimpGradientSegment struct and honor them in gimp_gradient_get_color_at(). Added GimpContext parameters to all functions which finally call get_color_at(). * app/core/gimp-gradients.c: use the new method to implement the builtin gradients. * app/core/gimpviewable.[ch]: added GimpContext parameters to all get_preview() and get_pixbuf() functions. * app/core/gimpbrush.c * app/core/gimpbuffer.c * app/core/gimpdrawable-preview.[ch] * app/core/gimpgradient.c * app/core/gimpimage-preview.[ch] * app/core/gimpimagefile.c * app/core/gimppalette.c * app/core/gimppattern.c * app/core/gimpundo.[ch] * app/text/gimpfont.c * app/vectors/gimpvectors-preview.[ch]: changed ::get_preview() and ::get_pixbuf() implementations accordingly. * app/core/gimpdrawable-blend.c * app/core/gimppalette-import.[ch] * app/dialogs/dialogs-constructors.c * app/dialogs/palette-import-dialog.c * app/dialogs/resize-dialog.c * app/display/gimpdisplayshell-layer-select.c * app/display/gimpdisplayshell.c * app/display/gimpnavigationeditor.c * app/paint/gimppaintoptions.c * app/tools/gimpeditselectiontool.c * app/tools/gimptexttool.c * app/actions/gradient-editor-commands.c * app/widgets/gimpaction.c * app/widgets/gimpbrusheditor.[ch] * app/widgets/gimpbufferview.c * app/widgets/gimpcellrendererviewable.c * app/widgets/gimpchanneltreeview.c * app/widgets/gimpclipboard.c * app/widgets/gimpcoloreditor.c * app/widgets/gimpcomponenteditor.c * app/widgets/gimpcontainerbox.c * app/widgets/gimpcontainercombobox.c * app/widgets/gimpcontainereditor.c * app/widgets/gimpcontainerentry.c * app/widgets/gimpcontainergridview.c * app/widgets/gimpcontainertreeview.[ch] * app/widgets/gimpdataeditor.[ch] * app/widgets/gimpdevicestatus.c * app/widgets/gimpdnd.[ch] * app/widgets/gimpdrawabletreeview.c * app/widgets/gimpfiledialog.c * app/widgets/gimpgradienteditor.[ch] * app/widgets/gimpgradientselect.c * app/widgets/gimpitemtreeview.c * app/widgets/gimplayertreeview.c * app/widgets/gimppaletteeditor.[ch] * app/widgets/gimppropwidgets.[ch] * app/widgets/gimpselectioneditor.c * app/widgets/gimpthumbbox.[ch] * app/widgets/gimptoolbox-image-area.c * app/widgets/gimptoolbox-indicator-area.c * app/widgets/gimptooloptionseditor.c * app/widgets/gimpundoeditor.c * app/widgets/gimpvectorstreeview.c * app/widgets/gimpview-popup.[ch] * app/widgets/gimpview.[ch] * app/widgets/gimpviewablebutton.c * app/widgets/gimpviewabledialog.c * app/widgets/gimpviewrenderer.[ch] * app/widgets/gimpviewrenderer-frame.c * app/widgets/gimpviewrendererbrush.c * app/widgets/gimpviewrendererbuffer.c * app/widgets/gimpviewrendererdrawable.c * app/widgets/gimpviewrenderergradient.c * app/widgets/gimpviewrendererimage.c * tools/pdbgen/pdb/drawable.pdb * tools/pdbgen/pdb/gradient.pdb * tools/pdbgen/pdb/gradients.pdb * tools/pdbgen/pdb/image.pdb: added tons of GimpContext members and parameters, implement GimpDocked::set_context() in many widgets. Pass these locally remembered contexts to GimpViewable functions. Did some minor cleanups on the way. There are still some minor FIXMEs around where the code uses a NULL context (which is allowed by the APIs) * app/pdb/drawable_cmds.c * app/pdb/gradient_cmds.c * app/pdb/gradients_cmds.c * app/pdb/image_cmds.c: regenerated.
373 lines
11 KiB
C
373 lines
11 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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#include "config.h"
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#include <glib-object.h>
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#include "libgimpmath/gimpmath.h"
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#include "core-types.h"
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#include "base/pixel-region.h"
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#include "base/tile-manager.h"
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#include "base/temp-buf.h"
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#include "paint-funcs/paint-funcs.h"
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#include "gimpbuffer.h"
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static void gimp_buffer_finalize (GObject *object);
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static gint64 gimp_buffer_get_memsize (GimpObject *object,
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gint64 *gui_size);
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static gboolean gimp_buffer_get_size (GimpViewable *viewable,
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gint *width,
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gint *height);
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static void gimp_buffer_get_preview_size (GimpViewable *viewable,
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gint size,
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gboolean is_popup,
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gboolean dot_for_dot,
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gint *popup_width,
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gint *popup_height);
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static gboolean gimp_buffer_get_popup_size (GimpViewable *viewable,
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gint width,
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gint height,
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gboolean dot_for_dot,
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gint *popup_width,
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gint *popup_height);
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static TempBuf * gimp_buffer_get_new_preview (GimpViewable *viewable,
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GimpContext *context,
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gint width,
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gint height);
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static gchar * gimp_buffer_get_description (GimpViewable *viewable,
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gchar **tooltip);
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G_DEFINE_TYPE (GimpBuffer, gimp_buffer, GIMP_TYPE_VIEWABLE)
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#define parent_class gimp_buffer_parent_class
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static void
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gimp_buffer_class_init (GimpBufferClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GimpObjectClass *gimp_object_class = GIMP_OBJECT_CLASS (klass);
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GimpViewableClass *viewable_class = GIMP_VIEWABLE_CLASS (klass);
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object_class->finalize = gimp_buffer_finalize;
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gimp_object_class->get_memsize = gimp_buffer_get_memsize;
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viewable_class->default_stock_id = "gtk-paste";
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viewable_class->get_size = gimp_buffer_get_size;
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viewable_class->get_preview_size = gimp_buffer_get_preview_size;
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viewable_class->get_popup_size = gimp_buffer_get_popup_size;
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viewable_class->get_new_preview = gimp_buffer_get_new_preview;
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viewable_class->get_description = gimp_buffer_get_description;
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}
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static void
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gimp_buffer_init (GimpBuffer *buffer)
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{
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buffer->tiles = NULL;
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}
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static void
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gimp_buffer_finalize (GObject *object)
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{
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GimpBuffer *buffer = GIMP_BUFFER (object);
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if (buffer->tiles)
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{
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tile_manager_unref (buffer->tiles);
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buffer->tiles = NULL;
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}
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gint64
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gimp_buffer_get_memsize (GimpObject *object,
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gint64 *gui_size)
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{
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GimpBuffer *buffer = GIMP_BUFFER (object);
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gint64 memsize = 0;
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if (buffer->tiles)
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memsize += tile_manager_get_memsize (buffer->tiles, FALSE);
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return memsize + GIMP_OBJECT_CLASS (parent_class)->get_memsize (object,
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gui_size);
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}
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static gboolean
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gimp_buffer_get_size (GimpViewable *viewable,
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gint *width,
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gint *height)
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{
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GimpBuffer *buffer = GIMP_BUFFER (viewable);
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*width = gimp_buffer_get_width (buffer);
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*height = gimp_buffer_get_height (buffer);
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return TRUE;
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}
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static void
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gimp_buffer_get_preview_size (GimpViewable *viewable,
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gint size,
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gboolean is_popup,
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gboolean dot_for_dot,
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gint *width,
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gint *height)
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{
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GimpBuffer *buffer = GIMP_BUFFER (viewable);
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gimp_viewable_calc_preview_size (gimp_buffer_get_width (buffer),
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gimp_buffer_get_height (buffer),
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size,
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size,
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dot_for_dot, 1.0, 1.0,
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width,
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height,
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NULL);
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}
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static gboolean
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gimp_buffer_get_popup_size (GimpViewable *viewable,
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gint width,
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gint height,
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gboolean dot_for_dot,
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gint *popup_width,
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gint *popup_height)
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{
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GimpBuffer *buffer;
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gint buffer_width;
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gint buffer_height;
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buffer = GIMP_BUFFER (viewable);
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buffer_width = gimp_buffer_get_width (buffer);
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buffer_height = gimp_buffer_get_height (buffer);
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if (buffer_width > width || buffer_height > height)
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{
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gboolean scaling_up;
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gimp_viewable_calc_preview_size (buffer_width,
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buffer_height,
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width * 2,
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height * 2,
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dot_for_dot, 1.0, 1.0,
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popup_width,
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popup_height,
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&scaling_up);
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if (scaling_up)
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{
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*popup_width = buffer_width;
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*popup_height = buffer_height;
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}
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return TRUE;
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}
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return FALSE;
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}
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static TempBuf *
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gimp_buffer_get_new_preview (GimpViewable *viewable,
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GimpContext *context,
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gint width,
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gint height)
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{
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GimpBuffer *buffer = GIMP_BUFFER (viewable);
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TempBuf *temp_buf;
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gint buffer_width;
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gint buffer_height;
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PixelRegion srcPR;
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PixelRegion destPR;
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gint bytes;
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buffer_width = tile_manager_width (buffer->tiles);
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buffer_height = tile_manager_height (buffer->tiles);
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bytes = tile_manager_bpp (buffer->tiles);
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pixel_region_init (&srcPR, buffer->tiles,
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0, 0,
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buffer_width,
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buffer_height,
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FALSE);
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if (buffer_height > height || buffer_width > width)
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temp_buf = temp_buf_new (width, height, bytes, 0, 0, NULL);
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else
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temp_buf = temp_buf_new (buffer_width, buffer_height, bytes, 0, 0, NULL);
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pixel_region_init_temp_buf (&destPR, temp_buf,
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0, 0, temp_buf->width, temp_buf->height);
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if (buffer_height > height || buffer_width > width)
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{
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gint subsample;
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/* calculate 'acceptable' subsample */
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subsample = 1;
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while ((width * (subsample + 1) * 2 < buffer_width) &&
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(height * (subsample + 1) * 2 < buffer_height))
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subsample += 1;
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subsample_region (&srcPR, &destPR, subsample);
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}
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else
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{
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copy_region (&srcPR, &destPR);
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}
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return temp_buf;
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}
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static gchar *
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gimp_buffer_get_description (GimpViewable *viewable,
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gchar **tooltip)
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{
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GimpBuffer *buffer = GIMP_BUFFER (viewable);
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return g_strdup_printf ("%s (%d × %d)",
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GIMP_OBJECT (buffer)->name,
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gimp_buffer_get_width (buffer),
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gimp_buffer_get_height (buffer));
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}
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GimpBuffer *
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gimp_buffer_new (TileManager *tiles,
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const gchar *name,
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gboolean copy_pixels)
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{
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GimpBuffer *buffer;
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gint width, height;
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g_return_val_if_fail (tiles != NULL, NULL);
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g_return_val_if_fail (name != NULL, NULL);
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width = tile_manager_width (tiles);
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height = tile_manager_height (tiles);
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buffer = g_object_new (GIMP_TYPE_BUFFER,
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"name", name,
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NULL);
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if (copy_pixels)
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{
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PixelRegion srcPR, destPR;
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buffer->tiles = tile_manager_new (width, height,
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tile_manager_bpp (tiles));
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pixel_region_init (&srcPR, tiles, 0, 0, width, height, FALSE);
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pixel_region_init (&destPR, buffer->tiles, 0, 0, width, height, TRUE);
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copy_region (&srcPR, &destPR);
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}
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else
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{
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buffer->tiles = tiles;
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}
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return buffer;
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}
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GimpBuffer *
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gimp_buffer_new_from_pixbuf (GdkPixbuf *pixbuf,
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const gchar *name)
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{
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TileManager *tiles;
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guchar *pixels;
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PixelRegion destPR;
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gint width;
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gint height;
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gint rowstride;
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gint channels;
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gint y;
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g_return_val_if_fail (GDK_IS_PIXBUF (pixbuf), NULL);
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g_return_val_if_fail (name != NULL, NULL);
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width = gdk_pixbuf_get_width (pixbuf);
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height = gdk_pixbuf_get_height (pixbuf);
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rowstride = gdk_pixbuf_get_rowstride (pixbuf);
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channels = gdk_pixbuf_get_n_channels (pixbuf);
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tiles = tile_manager_new (width, height, channels);
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pixel_region_init (&destPR, tiles, 0, 0, width, height, TRUE);
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for (y = 0, pixels = gdk_pixbuf_get_pixels (pixbuf);
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y < height;
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y++, pixels += rowstride)
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{
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pixel_region_set_row (&destPR, 0, y, width, pixels);
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}
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return gimp_buffer_new (tiles, name, FALSE);
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}
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gint
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gimp_buffer_get_width (const GimpBuffer *buffer)
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{
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g_return_val_if_fail (GIMP_IS_BUFFER (buffer), 0);
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return tile_manager_width (buffer->tiles);
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}
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gint
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gimp_buffer_get_height (const GimpBuffer *buffer)
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{
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g_return_val_if_fail (GIMP_IS_BUFFER (buffer), 0);
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return tile_manager_height (buffer->tiles);
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}
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gint
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gimp_buffer_get_bytes (const GimpBuffer *buffer)
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{
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g_return_val_if_fail (GIMP_IS_BUFFER (buffer), 0);
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return tile_manager_bpp (buffer->tiles);
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}
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GimpImageType
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gimp_buffer_get_image_type (const GimpBuffer *buffer)
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{
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g_return_val_if_fail (GIMP_IS_BUFFER (buffer), 0);
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switch (tile_manager_bpp (buffer->tiles))
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{
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case 1: return GIMP_GRAY_IMAGE;
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case 2: return GIMP_GRAYA_IMAGE;
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case 3: return GIMP_RGB_IMAGE;
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case 4: return GIMP_RGBA_IMAGE;
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}
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return 0;
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}
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