mirror of
https://gitlab.gnome.org/GNOME/gtk.git
synced 2024-11-14 04:31:09 +00:00
4f1ccca594
Sun Jul 2 12:45:50 2000 Owen Taylor <otaylor@redhat.com> * gdk/gdkrgb.[ch]: Add gdk_rgb_find_color() to get a pixel value using GdkRGB functionality given GdkColormap and GdkColor. (name not final, waiting for inspiration.) * gdk/gdkgc.[ch] (gdk_gc_set_rgb_fg/bg_color): New functions to set the foreground/background of a GC using the GC's colormap and GdkRGB. (name not final, waiting for inspiration.) * gdk/gdkcompat.h gdk/gdkrgb.c (gdk_rgb_get_colormap): Rename from gdk_rgb_get_cmap(), put #define in gdkcompat.h. * gtk/gtkwidget.[ch] gtkcompat.h: Make visuals for gtk_widget_get_visual(), gtk_widget_get_default_visual, etc, purely a function of the corresponding colormap. Make gtk_widget_set_visual(), etc, noop macros in gtkcompat.h. * gdk/gdkpixmap.c gdk/x11/gdkpixmap-c11.c: Rewrite gdk_pixbuf_*create_from_xpm_* in terms of gdk_pixbuf_new_from_xpm_data(), move into platform independent code. * gdk/gdkpixbuf-render.c (gdk_pixbuf_render_to_drawable): Take advantage of the new draw_rgb_32_image_dithalign. * gdk/gdkrgb.c (gdk_draw_rgb_32_image_dithalign): Added. * gtk/gtkgc.c (gtk_gc_new): Set the appropriate colormap on each created GC. * gdk/gdkgc.[ch]: Add gdk_gc_get/set_colormap. * gdk/gdkgc.[ch]: Add a colormap field to the GdkGC structure which we initialize from the drawable when the GC is created, if the drawable has a colormap. * gdk/x11/gdkgc-x11.c: include string.h for memset. * gdk/x11/gdkinput-x11.c: include string.h for strlen, etc. * gtk/gtklayout.[ch]: Remove unsed configure serial member.
116 lines
3.6 KiB
C
116 lines
3.6 KiB
C
#include <config.h>
|
|
#include <gtk/gtk.h>
|
|
#include <gdk/x11/gdkx.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;
|
|
}
|
|
|
|
extern void pixbuf_init();
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
GdkWindow *root;
|
|
GtkWidget *window;
|
|
GtkWidget *vbox;
|
|
GtkWidget *drawing_area;
|
|
GdkPixbuf *pixbuf;
|
|
|
|
pixbuf_init ();
|
|
|
|
gtk_init(&argc, &argv);
|
|
gdk_rgb_set_verbose(TRUE);
|
|
gdk_rgb_init();
|
|
|
|
gtk_widget_set_default_colormap(gdk_rgb_get_cmap());
|
|
|
|
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;
|
|
}
|