forked from AuroraMiddleware/gtk
287 lines
7.4 KiB
C
287 lines
7.4 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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*
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* Insensitive pixmap building code by Eckehard Berns from GNOME Stock
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* Copyright (C) 1997, 1998 Free Software Foundation
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#include "config.h"
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#include <math.h>
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#undef GTK_DISABLE_DEPRECATED
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#define __GTK_PIXMAP_C__
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#include "gtkcontainer.h"
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#include "gtkpixmap.h"
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#include "gtkintl.h"
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#include "gtkalias.h"
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static gint gtk_pixmap_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static void gtk_pixmap_finalize (GObject *object);
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static void build_insensitive_pixmap (GtkPixmap *gtkpixmap);
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G_DEFINE_TYPE (GtkPixmap, gtk_pixmap, GTK_TYPE_MISC)
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static void
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gtk_pixmap_class_init (GtkPixmapClass *class)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (class);
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GtkWidgetClass *widget_class;
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widget_class = (GtkWidgetClass*) class;
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gobject_class->finalize = gtk_pixmap_finalize;
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widget_class->expose_event = gtk_pixmap_expose;
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}
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static void
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gtk_pixmap_init (GtkPixmap *pixmap)
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{
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gtk_widget_set_has_window (GTK_WIDGET (pixmap), FALSE);
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pixmap->pixmap = NULL;
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pixmap->mask = NULL;
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}
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/**
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* gtk_pixmap_new:
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* @mask: (allow-none):
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*/
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GtkWidget*
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gtk_pixmap_new (GdkPixmap *val,
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GdkBitmap *mask)
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{
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GtkPixmap *pixmap;
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g_return_val_if_fail (val != NULL, NULL);
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pixmap = gtk_type_new (gtk_pixmap_get_type ());
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pixmap->build_insensitive = TRUE;
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gtk_pixmap_set (pixmap, val, mask);
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return GTK_WIDGET (pixmap);
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}
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static void
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gtk_pixmap_finalize (GObject *object)
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{
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gtk_pixmap_set (GTK_PIXMAP (object), NULL, NULL);
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G_OBJECT_CLASS (gtk_pixmap_parent_class)->finalize (object);
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}
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void
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gtk_pixmap_set (GtkPixmap *pixmap,
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GdkPixmap *val,
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GdkBitmap *mask)
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{
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gint width;
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gint height;
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gint oldwidth;
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gint oldheight;
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g_return_if_fail (GTK_IS_PIXMAP (pixmap));
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if(GDK_IS_DRAWABLE(val))
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g_return_if_fail (gdk_colormap_get_visual (gtk_widget_get_colormap (GTK_WIDGET (pixmap)))->depth == gdk_drawable_get_depth (GDK_DRAWABLE (val)));
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if (pixmap->pixmap != val)
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{
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oldwidth = GTK_WIDGET (pixmap)->requisition.width;
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oldheight = GTK_WIDGET (pixmap)->requisition.height;
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if (pixmap->pixmap)
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g_object_unref (pixmap->pixmap);
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if (pixmap->pixmap_insensitive)
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g_object_unref (pixmap->pixmap_insensitive);
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pixmap->pixmap = val;
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pixmap->pixmap_insensitive = NULL;
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if (pixmap->pixmap)
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{
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g_object_ref (pixmap->pixmap);
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gdk_drawable_get_size (pixmap->pixmap, &width, &height);
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GTK_WIDGET (pixmap)->requisition.width =
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width + GTK_MISC (pixmap)->xpad * 2;
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GTK_WIDGET (pixmap)->requisition.height =
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height + GTK_MISC (pixmap)->ypad * 2;
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}
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else
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{
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GTK_WIDGET (pixmap)->requisition.width = 0;
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GTK_WIDGET (pixmap)->requisition.height = 0;
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}
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if (gtk_widget_get_visible (GTK_WIDGET (pixmap)))
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{
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if ((GTK_WIDGET (pixmap)->requisition.width != oldwidth) ||
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(GTK_WIDGET (pixmap)->requisition.height != oldheight))
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gtk_widget_queue_resize (GTK_WIDGET (pixmap));
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else
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gtk_widget_queue_draw (GTK_WIDGET (pixmap));
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}
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}
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if (pixmap->mask != mask)
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{
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if (pixmap->mask)
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g_object_unref (pixmap->mask);
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pixmap->mask = mask;
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if (pixmap->mask)
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g_object_ref (pixmap->mask);
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}
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}
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void
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gtk_pixmap_get (GtkPixmap *pixmap,
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GdkPixmap **val,
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GdkBitmap **mask)
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{
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g_return_if_fail (GTK_IS_PIXMAP (pixmap));
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if (val)
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*val = pixmap->pixmap;
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if (mask)
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*mask = pixmap->mask;
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}
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static gint
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gtk_pixmap_expose (GtkWidget *widget,
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GdkEventExpose *event)
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{
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GtkPixmap *pixmap;
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GtkMisc *misc;
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gint x, y;
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gfloat xalign;
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g_return_val_if_fail (GTK_IS_PIXMAP (widget), FALSE);
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g_return_val_if_fail (event != NULL, FALSE);
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if (GTK_WIDGET_DRAWABLE (widget))
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{
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pixmap = GTK_PIXMAP (widget);
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misc = GTK_MISC (widget);
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if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
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xalign = misc->xalign;
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else
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xalign = 1.0 - misc->xalign;
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x = floor (widget->allocation.x + misc->xpad
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+ ((widget->allocation.width - widget->requisition.width) * xalign));
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y = floor (widget->allocation.y + misc->ypad
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+ ((widget->allocation.height - widget->requisition.height) * misc->yalign));
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if (pixmap->mask)
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{
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gdk_gc_set_clip_mask (widget->style->black_gc, pixmap->mask);
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gdk_gc_set_clip_origin (widget->style->black_gc, x, y);
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}
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if (gtk_widget_get_state (widget) == GTK_STATE_INSENSITIVE
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&& pixmap->build_insensitive)
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{
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if (!pixmap->pixmap_insensitive)
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build_insensitive_pixmap (pixmap);
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gdk_draw_drawable (widget->window,
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widget->style->black_gc,
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pixmap->pixmap_insensitive,
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0, 0, x, y, -1, -1);
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}
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else
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{
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gdk_draw_drawable (widget->window,
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widget->style->black_gc,
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pixmap->pixmap,
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0, 0, x, y, -1, -1);
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}
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if (pixmap->mask)
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{
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gdk_gc_set_clip_mask (widget->style->black_gc, NULL);
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gdk_gc_set_clip_origin (widget->style->black_gc, 0, 0);
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}
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}
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return FALSE;
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}
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void
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gtk_pixmap_set_build_insensitive (GtkPixmap *pixmap, gboolean build)
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{
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g_return_if_fail (GTK_IS_PIXMAP (pixmap));
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pixmap->build_insensitive = build;
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if (gtk_widget_get_visible (GTK_WIDGET (pixmap)))
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{
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gtk_widget_queue_draw (GTK_WIDGET (pixmap));
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}
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}
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static void
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build_insensitive_pixmap (GtkPixmap *gtkpixmap)
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{
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GdkPixmap *pixmap = gtkpixmap->pixmap;
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GdkPixmap *insensitive;
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gint w, h;
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GdkPixbuf *pixbuf;
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GdkPixbuf *stated;
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gdk_drawable_get_size (pixmap, &w, &h);
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pixbuf = gdk_pixbuf_get_from_drawable (NULL,
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pixmap,
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gtk_widget_get_colormap (GTK_WIDGET (gtkpixmap)),
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0, 0,
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0, 0,
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w, h);
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stated = gdk_pixbuf_copy (pixbuf);
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gdk_pixbuf_saturate_and_pixelate (pixbuf, stated,
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0.8, TRUE);
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g_object_unref (pixbuf);
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pixbuf = NULL;
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insensitive = gdk_pixmap_new (GTK_WIDGET (gtkpixmap)->window, w, h, -1);
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gdk_draw_pixbuf (insensitive,
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GTK_WIDGET (gtkpixmap)->style->white_gc,
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stated,
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0, 0,
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0, 0,
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w, h,
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GDK_RGB_DITHER_NORMAL,
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0, 0);
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gtkpixmap->pixmap_insensitive = insensitive;
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g_object_unref (stated);
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}
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#include "gtkaliasdef.c"
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