/** canvasimage.c **/
#include <gnome.h>

#include "logo.xpm"
#include "foot.xpm"

gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data);
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data);
static gint dragEvent(GnomeCanvasItem *item,
        GdkEvent *event,gpointer data);

int main(int argc,char *argv[])
{
    GtkWidget *app;
    GtkWidget *canvas;
    GnomeCanvasGroup *rootGroup;
    GnomeCanvasItem *item;
    GdkImlibImage *image;

    gnome_init("canvasimage","1.0",argc,argv);
    app = gnome_app_new("canvasimage",
            "Gnome Canvas Image");
    gtk_signal_connect(GTK_OBJECT(app),"delete_event",
            GTK_SIGNAL_FUNC(eventDelete),NULL);
    gtk_signal_connect(GTK_OBJECT(app),"destroy",
            GTK_SIGNAL_FUNC(eventDestroy),NULL);

    canvas = gnome_canvas_new();
    gtk_widget_set_usize(canvas,600,360);
    gnome_canvas_set_scroll_region(GNOME_CANVAS(canvas),
            0.0,0.0,600,360);
    rootGroup = gnome_canvas_root(GNOME_CANVAS(canvas));
    gnome_app_set_contents(GNOME_APP(app),canvas);

    image = gdk_imlib_create_image_from_xpm_data(logo);
    item = gnome_canvas_item_new(rootGroup,
                    gnome_canvas_image_get_type(),
                    "image",image,
                    "x",(double)100,
                    "y",(double)100,
                    "width",(double)257,
                    "height",(double)303,
                    "anchor",GTK_ANCHOR_CENTER,
                    NULL);
    gtk_signal_connect(GTK_OBJECT(item),"event",
                (GtkSignalFunc)dragEvent,NULL);
    gdk_imlib_destroy_image(image);

    image = gdk_imlib_create_image_from_xpm_data(foot);
    item = gnome_canvas_item_new(rootGroup,
                    gnome_canvas_image_get_type(),
                    "image",image,
                    "x",(double)300,
                    "y",(double)100,
                    "width",(double)172,
                    "height",(double)51,
                    "anchor",GTK_ANCHOR_CENTER,
                    NULL);
    gtk_signal_connect(GTK_OBJECT(item),"event",
                (GtkSignalFunc)dragEvent,NULL);

    item = gnome_canvas_item_new(rootGroup,
                    gnome_canvas_image_get_type(),
                    "image",image,
                    "x",(double)200,
                    "y",(double)150,
                    "width",(double)200,
                    "height",(double)200,
                    "anchor",GTK_ANCHOR_CENTER,
                    NULL);
    gtk_signal_connect(GTK_OBJECT(item),"event",
                (GtkSignalFunc)dragEvent,NULL);
    gdk_imlib_destroy_image(image);

    gtk_widget_show_all(app);
    gtk_main();
    exit(0);
}
static gint dragEvent(GnomeCanvasItem *item,
        GdkEvent *event,gpointer data) {
    static gint x;
    static gint y;
    gint new_x;
    gint new_y;

    switch(event->type) {
    case GDK_MOTION_NOTIFY:
        if(event->button.state & 0x00000100) {
            new_x = event->button.x;
            new_y = event->button.y;
            gnome_canvas_item_move(item,
                (double)(new_x - x),
                (double)(new_y - y));
            x = new_x;
            y = new_y;
        }
        break;
    case GDK_BUTTON_PRESS:
        if(event->button.button == 1)
            gnome_canvas_item_raise_to_top(item);
        x = event->button.x;
        y = event->button.y;
        break;
    default:
        break;
    }
    return(0);
}
gint eventDelete(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    return(FALSE);
}
gint eventDestroy(GtkWidget *widget,
        GdkEvent *event,gpointer data) {
    gtk_main_quit();
    return(0);
}