diff options
Diffstat (limited to 'gtk/gtkpixmap.c')
| -rw-r--r-- | gtk/gtkpixmap.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/gtk/gtkpixmap.c b/gtk/gtkpixmap.c new file mode 100644 index 000000000..ae640f81f --- /dev/null +++ b/gtk/gtkpixmap.c @@ -0,0 +1,176 @@ +/* GTK - The GIMP Toolkit + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include "gtkcontainer.h" +#include "gtkpixmap.h" + + +static void gtk_pixmap_class_init (GtkPixmapClass *klass); +static void gtk_pixmap_init (GtkPixmap *pixmap); +static gint gtk_pixmap_expose (GtkWidget *widget, + GdkEventExpose *event); + + +guint +gtk_pixmap_get_type () +{ + static guint pixmap_type = 0; + + if (!pixmap_type) + { + GtkTypeInfo pixmap_info = + { + "GtkPixmap", + sizeof (GtkPixmap), + sizeof (GtkPixmapClass), + (GtkClassInitFunc) gtk_pixmap_class_init, + (GtkObjectInitFunc) gtk_pixmap_init, + (GtkArgFunc) NULL, + }; + + pixmap_type = gtk_type_unique (gtk_misc_get_type (), &pixmap_info); + } + + return pixmap_type; +} + +static void +gtk_pixmap_class_init (GtkPixmapClass *class) +{ + GtkWidgetClass *widget_class; + + widget_class = (GtkWidgetClass*) class; + + widget_class->expose_event = gtk_pixmap_expose; +} + +static void +gtk_pixmap_init (GtkPixmap *pixmap) +{ + GTK_WIDGET_SET_FLAGS (pixmap, GTK_NO_WINDOW); + + pixmap->pixmap = NULL; + pixmap->mask = NULL; +} + +GtkWidget* +gtk_pixmap_new (GdkPixmap *val, + GdkBitmap *mask) +{ + GtkPixmap *pixmap; + + g_return_val_if_fail (val != NULL, NULL); + + pixmap = gtk_type_new (gtk_pixmap_get_type ()); + + gtk_pixmap_set (pixmap, val, mask); + + return GTK_WIDGET (pixmap); +} + +void +gtk_pixmap_set (GtkPixmap *pixmap, + GdkPixmap *val, + GdkBitmap *mask) +{ + gint width; + gint height; + + g_return_if_fail (pixmap != NULL); + g_return_if_fail (GTK_IS_PIXMAP (pixmap)); + g_return_if_fail (val != NULL); + + pixmap->pixmap = val; + pixmap->mask = mask; + + if (pixmap->pixmap) + { + gdk_window_get_size (pixmap->pixmap, &width, &height); + GTK_WIDGET (pixmap)->requisition.width = width + GTK_MISC (pixmap)->xpad * 2; + GTK_WIDGET (pixmap)->requisition.height = height + GTK_MISC (pixmap)->ypad * 2; + } + else + { + GTK_WIDGET (pixmap)->requisition.width = 0; + GTK_WIDGET (pixmap)->requisition.height = 0; + } + + if (GTK_WIDGET_VISIBLE (pixmap)) + gtk_widget_queue_resize (GTK_WIDGET (pixmap)); +} + +void +gtk_pixmap_get (GtkPixmap *pixmap, + GdkPixmap **val, + GdkBitmap **mask) +{ + g_return_if_fail (pixmap != NULL); + g_return_if_fail (GTK_IS_PIXMAP (pixmap)); + + if (val) + *val = pixmap->pixmap; + if (mask) + *mask = pixmap->mask; +} + + +static gint +gtk_pixmap_expose (GtkWidget *widget, + GdkEventExpose *event) +{ + GtkPixmap *pixmap; + GtkMisc *misc; + gint x, y; + + g_return_val_if_fail (widget != NULL, FALSE); + g_return_val_if_fail (GTK_IS_PIXMAP (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + pixmap = GTK_PIXMAP (widget); + misc = GTK_MISC (widget); + + x = (widget->allocation.x * (1.0 - misc->xalign) + + (widget->allocation.x + widget->allocation.width + - (widget->requisition.width - misc->xpad * 2)) * + misc->xalign) + 0.5; + y = (widget->allocation.y * (1.0 - misc->yalign) + + (widget->allocation.y + widget->allocation.height + - (widget->requisition.height - misc->ypad * 2)) * + misc->yalign) + 0.5; + + if (pixmap->mask) + { + gdk_gc_set_clip_mask (widget->style->black_gc, pixmap->mask); + gdk_gc_set_clip_origin (widget->style->black_gc, x, y); + } + + gdk_draw_pixmap (widget->window, + widget->style->black_gc, + pixmap->pixmap, + 0, 0, x, y, -1, -1); + + if (pixmap->mask) + { + gdk_gc_set_clip_mask (widget->style->black_gc, NULL); + gdk_gc_set_clip_origin (widget->style->black_gc, 0, 0); + } + } + + return FALSE; +} |