48bf4fb7b2
2003-03-01 Michael Natterer <mitch@gimp.org> * app/core/gimpbuffer.c: don't scale the preview up if the buffer is too small. * app/core/gimppattern.c: don't add a white border around the preview if the pattern is too small. * app/widgets/gimppreviewrenderer.[ch]: new object. A buffer that updates itself on GimpViewable changes and can render itself to any widget. Basically GimpPreview reduced to the render and draw code. * app/widgets/gimppreview.[ch]: removed all rendering and drawing code and keep a GimpPreviewRenderer instance. Connect to its "update" signal for queuing draws on the preview. * app/widgets/gimpcellrendererviewable.[ch] * app/widgets/gimpcontainertreeview.c: same here: removed rendering and drawing code and keep GimpPreviewRenderers in the list store. Delays preview creation for GtkTreeViews until the buffer is really needed for drawing and adds idle preview updating on viewable changes. * app/widgets/gimppreview-utils.[ch] * app/widgets/gimpbrushpreview.[ch] * app/widgets/gimpbufferpreview.[ch] * app/widgets/gimpdrawablepreview.[ch] * app/widgets/gimpimagepreview.[ch]: removed... * app/widgets/gimppreviewrenderer-utils.[ch] * app/widgets/gimppreviewrendererbrush.[ch] * app/widgets/gimppreviewrendererdrawable.[ch] * app/widgets/gimppreviewrendererimage.[ch]: ...and converted to GimpPreviewRenderer subclasses. * app/display/gimpnavigationview.c * app/gui/palette-import-dialog.c * app/widgets/Makefile.am * app/widgets/widgets-enums.h * app/widgets/widgets-types.h * app/widgets/gimpchannellistview.c * app/widgets/gimpcomponentlistitem.c * app/widgets/gimpcontainergridview.c * app/widgets/gimpcontainermenuimpl.c * app/widgets/gimplayerlistitem.c * app/widgets/gimplistitem.c * app/widgets/gimpnavigationpreview.[ch] * app/widgets/gimpselectioneditor.c * app/widgets/gimpvectorslistview.c: changed accordingly.
292 lines
11 KiB
C
292 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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* gimpcellrendererviewable.h
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* Copyright (C) 2003 Michael Natterer <mitch@gimp.org>
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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 <gtk/gtk.h>
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#include "widgets-types.h"
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#include "core/gimpviewable.h"
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#include "gimpcellrendererviewable.h"
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#include "gimppreview-popup.h"
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#include "gimppreviewrenderer.h"
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enum
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{
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PROP_0,
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PROP_RENDERER
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};
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static void gimp_cell_renderer_viewable_class_init (GimpCellRendererViewableClass *klass);
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static void gimp_cell_renderer_viewable_init (GimpCellRendererViewable *cell);
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static void gimp_cell_renderer_viewable_get_property (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec);
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static void gimp_cell_renderer_viewable_set_property (GObject *object,
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guint param_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gimp_cell_renderer_viewable_get_size (GtkCellRenderer *cell,
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GtkWidget *widget,
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GdkRectangle *rectangle,
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gint *x_offset,
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gint *y_offset,
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gint *width,
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gint *height);
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static void gimp_cell_renderer_viewable_render (GtkCellRenderer *cell,
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GdkWindow *window,
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GtkWidget *widget,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GdkRectangle *expose_area,
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GtkCellRendererState flags);
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static gboolean gimp_cell_renderer_viewable_activate (GtkCellRenderer *cell,
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GdkEvent *event,
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GtkWidget *widget,
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const gchar *path,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GtkCellRendererState flags);
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GtkCellRendererClass *parent_class = NULL;
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GType
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gimp_cell_renderer_viewable_get_type (void)
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{
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static GType cell_type = 0;
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if (! cell_type)
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{
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static const GTypeInfo cell_info =
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{
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sizeof (GimpCellRendererViewableClass),
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NULL, /* base_init */
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NULL, /* base_finalize */
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(GClassInitFunc) gimp_cell_renderer_viewable_class_init,
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NULL, /* class_finalize */
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NULL, /* class_data */
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sizeof (GimpCellRendererViewable),
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0, /* n_preallocs */
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(GInstanceInitFunc) gimp_cell_renderer_viewable_init,
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};
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cell_type = g_type_register_static (GTK_TYPE_CELL_RENDERER,
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"GtkCellRendererViewable",
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&cell_info, 0);
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}
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return cell_type;
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}
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static void
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gimp_cell_renderer_viewable_class_init (GimpCellRendererViewableClass *klass)
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{
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GObjectClass *object_class;
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GtkCellRendererClass *cell_class;
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object_class = G_OBJECT_CLASS (klass);
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cell_class = GTK_CELL_RENDERER_CLASS (klass);
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parent_class = g_type_class_peek_parent (klass);
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object_class->get_property = gimp_cell_renderer_viewable_get_property;
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object_class->set_property = gimp_cell_renderer_viewable_set_property;
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cell_class->get_size = gimp_cell_renderer_viewable_get_size;
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cell_class->render = gimp_cell_renderer_viewable_render;
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cell_class->activate = gimp_cell_renderer_viewable_activate;
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g_object_class_install_property (object_class,
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PROP_RENDERER,
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g_param_spec_object ("renderer",
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NULL, NULL,
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GIMP_TYPE_PREVIEW_RENDERER,
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G_PARAM_READWRITE));
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}
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static void
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gimp_cell_renderer_viewable_init (GimpCellRendererViewable *cellviewable)
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{
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GTK_CELL_RENDERER (cellviewable)->mode = GTK_CELL_RENDERER_MODE_ACTIVATABLE;
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}
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static void
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gimp_cell_renderer_viewable_get_property (GObject *object,
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guint param_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GimpCellRendererViewable *cell;
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cell = GIMP_CELL_RENDERER_VIEWABLE (object);
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switch (param_id)
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{
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case PROP_RENDERER:
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g_value_set_object (value, cell->renderer);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
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break;
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}
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}
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static void
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gimp_cell_renderer_viewable_set_property (GObject *object,
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guint param_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GimpCellRendererViewable *cell;
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cell = GIMP_CELL_RENDERER_VIEWABLE (object);
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switch (param_id)
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{
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case PROP_RENDERER:
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if (cell->renderer)
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g_object_unref (cell->renderer);
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cell->renderer = (GimpPreviewRenderer *) g_value_dup_object (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
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break;
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}
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}
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static void
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gimp_cell_renderer_viewable_get_size (GtkCellRenderer *cell,
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GtkWidget *widget,
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GdkRectangle *cell_area,
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gint *x_offset,
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gint *y_offset,
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gint *width,
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gint *height)
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{
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GimpCellRendererViewable *cellviewable;
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gint preview_width = 0;
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gint preview_height = 0;
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gint calc_width;
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gint calc_height;
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cellviewable = GIMP_CELL_RENDERER_VIEWABLE (cell);
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if (cellviewable->renderer)
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{
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preview_width = (cellviewable->renderer->width +
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2 * cellviewable->renderer->border_width);
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preview_height = (cellviewable->renderer->height +
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2 * cellviewable->renderer->border_width);
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}
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calc_width = (gint) GTK_CELL_RENDERER (cell)->xpad * 2 + preview_width;
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calc_height = (gint) GTK_CELL_RENDERER (cell)->ypad * 2 + preview_height;
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if (x_offset) *x_offset = 0;
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if (y_offset) *y_offset = 0;
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if (cell_area && preview_width > 0 && preview_height > 0)
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{
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if (x_offset)
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{
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*x_offset = (GTK_CELL_RENDERER (cellviewable)->xalign *
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(cell_area->width - calc_width -
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(2 * GTK_CELL_RENDERER (cellviewable)->xpad)));
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*x_offset = (MAX (*x_offset, 0) +
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GTK_CELL_RENDERER (cellviewable)->xpad);
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}
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if (y_offset)
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{
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*y_offset = (GTK_CELL_RENDERER (cellviewable)->yalign *
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(cell_area->height - calc_height -
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(2 * GTK_CELL_RENDERER (cellviewable)->ypad)));
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*y_offset = (MAX (*y_offset, 0) +
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GTK_CELL_RENDERER (cellviewable)->ypad);
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}
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}
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if (width) *width = calc_width;
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if (height) *height = calc_height;
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}
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static void
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gimp_cell_renderer_viewable_render (GtkCellRenderer *cell,
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GdkWindow *window,
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GtkWidget *widget,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GdkRectangle *expose_area,
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GtkCellRendererState flags)
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{
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GimpCellRendererViewable *cellviewable;
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cellviewable = GIMP_CELL_RENDERER_VIEWABLE (cell);
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if (cellviewable->renderer)
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gimp_preview_renderer_draw (cellviewable->renderer, window, widget,
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cell_area, expose_area);
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}
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static gboolean
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gimp_cell_renderer_viewable_activate (GtkCellRenderer *cell,
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GdkEvent *event,
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GtkWidget *widget,
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const gchar *path,
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GdkRectangle *background_area,
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GdkRectangle *cell_area,
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GtkCellRendererState flags)
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{
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GimpCellRendererViewable *cellviewable;
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cellviewable = GIMP_CELL_RENDERER_VIEWABLE (cell);
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if (cellviewable->renderer && event)
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{
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if (((GdkEventAny *) event)->type == GDK_BUTTON_PRESS &&
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((GdkEventButton *) event)->button == 1)
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{
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return gimp_preview_popup_show (widget,
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(GdkEventButton *) event,
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cellviewable->renderer->viewable,
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cellviewable->renderer->width,
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cellviewable->renderer->height,
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TRUE);
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}
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}
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return FALSE;
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}
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GtkCellRenderer *
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gimp_cell_renderer_viewable_new (void)
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{
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return g_object_new (GIMP_TYPE_CELL_RENDERER_VIEWABLE, NULL);
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}
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