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#include <config.h>
#include <gtk/gtk.h>
#include <gdk/gdkx.h>
#include "gdk-pixbuf.h"
int close_app(GtkWidget *widget, gpointer data)
{
gtk_main_quit();
return TRUE;
}
int expose_cb(GtkWidget *drawing_area, GdkEventExpose *evt, gpointer data)
{
GdkPixbuf *pixbuf;
pixbuf = (GdkPixbuf *) gtk_object_get_data(GTK_OBJECT(drawing_area),
"pixbuf");
if(gdk_pixbuf_get_has_alpha (pixbuf))
{
gdk_draw_rgb_32_image(drawing_area->window,
drawing_area->style->black_gc,
evt->area.x, evt->area.y,
evt->area.width,
evt->area.height,
GDK_RGB_DITHER_MAX,
gdk_pixbuf_get_pixels (pixbuf) +
(evt->area.y * gdk_pixbuf_get_rowstride (pixbuf)) +
(evt->area.x * gdk_pixbuf_get_n_channels (pixbuf)),
gdk_pixbuf_get_rowstride (pixbuf));
}
else
{
gdk_draw_rgb_image(drawing_area->window,
drawing_area->style->black_gc,
evt->area.x, evt->area.y,
evt->area.width,
evt->area.height,
GDK_RGB_DITHER_NORMAL,
gdk_pixbuf_get_pixels (pixbuf) +
(evt->area.y * gdk_pixbuf_get_rowstride (pixbuf)) +
(evt->area.x * gdk_pixbuf_get_n_channels (pixbuf)),
gdk_pixbuf_get_rowstride (pixbuf));
}
return FALSE;
}
int configure_cb(GtkWidget *drawing_area, GdkEventConfigure *evt, gpointer data)
{
GdkPixbuf *pixbuf;
pixbuf = (GdkPixbuf *) gtk_object_get_data(GTK_OBJECT(drawing_area),
"pixbuf");
g_print("X:%d Y:%d\n", evt->width, evt->height);
if(evt->width != gdk_pixbuf_get_width (pixbuf) || evt->height != gdk_pixbuf_get_height (pixbuf))
{
GdkWindow *root;
GdkPixbuf *new_pixbuf;
root = GDK_ROOT_PARENT();
new_pixbuf = gdk_pixbuf_get_from_drawable(NULL, root, NULL,
0, 0, 0, 0, evt->width, evt->height);
gtk_object_set_data(GTK_OBJECT(drawing_area), "pixbuf", new_pixbuf);
gdk_pixbuf_unref(pixbuf);
}
return FALSE;
}
int main(int argc, char **argv)
{
GdkWindow *root;
GtkWidget *window;
GtkWidget *vbox;
GtkWidget *drawing_area;
GdkPixbuf *pixbuf;
gtk_init(&argc, &argv);
gdk_rgb_set_verbose(TRUE);
gdk_rgb_init();
gtk_widget_set_default_colormap(gdk_rgb_get_cmap());
gtk_widget_set_default_visual(gdk_rgb_get_visual());
root = GDK_ROOT_PARENT();
pixbuf = gdk_pixbuf_get_from_drawable(NULL, root, NULL,
0, 0, 0, 0, 150, 160);
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_signal_connect(GTK_OBJECT(window), "delete_event",
GTK_SIGNAL_FUNC(close_app), NULL);
gtk_signal_connect(GTK_OBJECT(window), "destroy",
GTK_SIGNAL_FUNC(close_app), NULL);
vbox = gtk_vbox_new(FALSE, 0);
gtk_container_add(GTK_CONTAINER(window), vbox);
drawing_area = gtk_drawing_area_new();
gtk_drawing_area_size(GTK_DRAWING_AREA(drawing_area),
gdk_pixbuf_get_width (pixbuf),
gdk_pixbuf_get_height (pixbuf));
gtk_signal_connect(GTK_OBJECT(drawing_area), "expose_event",
GTK_SIGNAL_FUNC(expose_cb), NULL);
gtk_signal_connect(GTK_OBJECT(drawing_area), "configure_event",
GTK_SIGNAL_FUNC(configure_cb), NULL);
gtk_object_set_data(GTK_OBJECT(drawing_area), "pixbuf", pixbuf);
gtk_box_pack_start(GTK_BOX(vbox), drawing_area, TRUE, TRUE, 0);
gtk_widget_show_all(window);
gtk_main();
return 0;
}
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