forked from AuroraMiddleware/gtk
76 lines
2.9 KiB
C
76 lines
2.9 KiB
C
/* 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;
|
|
}
|