1 files changed, 75 insertions, 0 deletions
diff --git a/examples/rulers/rulers.c b/examples/rulers/rulers.c
new file mode 100644
index 0000000000..ebefa14776
--- /dev/null
+++ b/examples/rulers/rulers.c
@@ -0,0 +1,75 @@
+/* This file extracted from the GTK tutorial. */
+
+/* rulers.c */
+
+#include <gtk/gtk.h>
+
+#define EVENT_METHOD(i, x) GTK_WIDGET_CLASS(GTK_OBJECT(i)->klass)->x
+
+#define XSIZE  600
+#define YSIZE  400
+
+/* this routine gets control when the close button is clicked
+ */
+void close_application( GtkWidget *widget, gpointer *data ) {
+    gtk_main_quit();
+}
+
+
+/* the main routine
+ */
+int main( int argc, char *argv[] ) {
+    GtkWidget *window, *table, *area, *hrule, *vrule;
+
+    /* initialize gtk and create the main window */
+    gtk_init( &argc, &argv );
+
+    window = gtk_window_new( GTK_WINDOW_TOPLEVEL );
+    gtk_signal_connect (GTK_OBJECT (window), "delete_event",
+            GTK_SIGNAL_FUNC( close_application ), NULL);
+    gtk_container_border_width (GTK_CONTAINER (window), 10);
+
+    /* create a table for placing the ruler and the drawing area */
+    table = gtk_table_new( 3, 2, FALSE );
+    gtk_container_add( GTK_CONTAINER(window), table );
+
+    area = gtk_drawing_area_new();
+    gtk_drawing_area_size( (GtkDrawingArea *)area, XSIZE, YSIZE );
+    gtk_table_attach( GTK_TABLE(table), area, 1, 2, 1, 2,
+                      GTK_EXPAND|GTK_FILL, GTK_FILL, 0, 0 );
+    gtk_widget_set_events( area, GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK );
+
+    /* The horizontal ruler goes on top.  As the mouse moves across the drawing area,
+       a motion_notify_event is passed to the appropriate event handler for the ruler. */
+    hrule = gtk_hruler_new();
+    gtk_ruler_set_metric( GTK_RULER(hrule), GTK_PIXELS );
+    gtk_ruler_set_range( GTK_RULER(hrule), 7, 13, 0, 20 );
+    gtk_signal_connect_object( GTK_OBJECT(area), "motion_notify_event",
+                               (GtkSignalFunc)EVENT_METHOD(hrule, motion_notify_event),
+                               GTK_OBJECT(hrule) );
+    /*  GTK_WIDGET_CLASS(GTK_OBJECT(hrule)->klass)->motion_notify_event, */
+    gtk_table_attach( GTK_TABLE(table), hrule, 1, 2, 0, 1,
+                      GTK_EXPAND|GTK_SHRINK|GTK_FILL, GTK_FILL, 0, 0 );
+    
+    /* The vertical ruler goes on the left.  As the mouse moves across the drawing area,
+       a motion_notify_event is passed to the appropriate event handler for the ruler. */
+    vrule = gtk_vruler_new();
+    gtk_ruler_set_metric( GTK_RULER(vrule), GTK_PIXELS );
+    gtk_ruler_set_range( GTK_RULER(vrule), 0, YSIZE, 10, YSIZE );
+    gtk_signal_connect_object( GTK_OBJECT(area), "motion_notify_event",
+                               (GtkSignalFunc)
+                                  GTK_WIDGET_CLASS(GTK_OBJECT(vrule)->klass)->motion_notify_event,
+                               GTK_OBJECT(vrule) );
+    gtk_table_attach( GTK_TABLE(table), vrule, 0, 1, 1, 2,
+                      GTK_FILL, GTK_EXPAND|GTK_SHRINK|GTK_FILL, 0, 0 );
+
+    /* now show everything */
+    gtk_widget_show( area );
+    gtk_widget_show( hrule );
+    gtk_widget_show( vrule );
+    gtk_widget_show( table );
+    gtk_widget_show( window );
+    gtk_main();
+
+    return 0;
+}