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bb8a563730
2000-01-21 Federico Mena Quintero <federico@helixcode.com> * gdk-pixbuf/gdk-pixbuf.c (gdk_pixbuf_ref): Return the same pixbuf as the input parameter. * gdk-pixbuf/gdk-pixbuf-animation.c (gdk_pixbuf_animation_ref): Return the same animation as the input parameter.
108 lines
3.6 KiB
C
108 lines
3.6 KiB
C
#include <config.h>
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#include <gtk/gtk.h>
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#include <gdk/gdkx.h>
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#include "gdk-pixbuf.h"
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void close_app(GtkWidget *widget, gpointer data)
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{
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gtk_main_quit();
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}
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void expose_cb(GtkWidget *drawing_area, GdkEventExpose *evt, gpointer
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data)
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{
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GdkPixbuf *pixbuf;
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pixbuf = (GdkPixbuf *) gtk_object_get_data(GTK_OBJECT(drawing_area),
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"pixbuf");
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if(pixbuf->art_pixbuf->has_alpha)
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{
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gdk_draw_rgb_32_image(drawing_area->window,
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drawing_area->style->black_gc,
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evt->area.x, evt->area.y,
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evt->area.width,
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evt->area.height,
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GDK_RGB_DITHER_MAX,
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pixbuf->art_pixbuf->pixels +
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(evt->area.y * pixbuf->art_pixbuf->rowstride) +
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(evt->area.x * pixbuf->art_pixbuf->n_channels),
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pixbuf->art_pixbuf->rowstride);
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}
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else
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{
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gdk_draw_rgb_image(drawing_area->window,
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drawing_area->style->white_gc,
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evt->area.x, evt->area.y,
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evt->area.width,
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evt->area.height,
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GDK_RGB_DITHER_NORMAL,
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pixbuf->art_pixbuf->pixels +
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(evt->area.y * pixbuf->art_pixbuf->rowstride) +
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(evt->area.x * pixbuf->art_pixbuf->n_channels),
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pixbuf->art_pixbuf->rowstride);
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}
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}
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void configure_cb(GtkWidget *drawing_area, GdkEventConfigure *evt,
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gpointer data)
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{
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GdkPixbuf *pixbuf;
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pixbuf = (GdkPixbuf *) gtk_object_get_data(GTK_OBJECT(drawing_area),
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"pixbuf");
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g_print("X:%d Y:%d\n", evt->width, evt->height);
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#if 0
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if(((evt->width) != (pixbuf->art_pixbuf->width)) ||
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((evt->height) != (pixbuf->art_pixbuf->height)))
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gdk_pixbuf_scale(pixbuf, evt->width, evt->height);
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#endif
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}
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int main(int argc, char **argv)
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{
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GdkWindow *root;
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GtkWidget *window;
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GtkWidget *vbox;
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GtkWidget *drawing_area;
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GdkPixbuf *pixbuf;
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gtk_init(&argc, &argv);
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gdk_rgb_set_verbose(TRUE);
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gdk_rgb_init();
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gtk_widget_set_default_colormap(gdk_rgb_get_cmap());
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gtk_widget_set_default_visual(gdk_rgb_get_visual());
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root = gdk_window_foreign_new(GDK_ROOT_WINDOW());
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pixbuf = gdk_pixbuf_get_from_drawable(NULL, root, NULL,
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0, 0, 0, 0, 150, 160);
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window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
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gtk_signal_connect(GTK_OBJECT(window), "delete_event",
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GTK_SIGNAL_FUNC(close_app), NULL);
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gtk_signal_connect(GTK_OBJECT(window), "destroy",
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GTK_SIGNAL_FUNC(close_app), NULL);
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vbox = gtk_vbox_new(FALSE, 0);
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gtk_container_add(GTK_CONTAINER(window), vbox);
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drawing_area = gtk_drawing_area_new();
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gtk_drawing_area_size(GTK_DRAWING_AREA(drawing_area),
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pixbuf->art_pixbuf->width,
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pixbuf->art_pixbuf->height);
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gtk_signal_connect(GTK_OBJECT(drawing_area), "expose_event",
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GTK_SIGNAL_FUNC(expose_cb), NULL);
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gtk_signal_connect(GTK_OBJECT(drawing_area), "configure_event",
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GTK_SIGNAL_FUNC(configure_cb), NULL);
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gtk_object_set_data(GTK_OBJECT(drawing_area), "pixbuf", pixbuf);
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gtk_box_pack_start(GTK_BOX(vbox), drawing_area, TRUE, TRUE, 0);
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gtk_widget_show_all(window);
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gtk_main();
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return 0;
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}
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