gtk/examples/rulers/rulers.c
GMT 1999 Tony Gale ee3d137660 threads example from Erik Mouw. New question on GtkLabel background
Sat Nov 13 22:30:29 GMT 1999 Tony Gale  <gale@gtk.org>

        * docs/gtkfaq.sgml: threads example from Erik Mouw.
        New question on GtkLabel background colors.

        * docs/gtk_tut.sgml:
          - Correct the example code callback
            function definitions.
          - Update the gtkdial example code, from Frans van Schaik.
          - Update setselection.c to current API.

        * examples/Makefile examples/*/*.c: Update to code
        listed in tutorial.
1999-11-13 23:06:46 +00:00

82 lines
3.1 KiB
C

/* example-start rulers 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 */
gint close_application( GtkWidget *widget,
GdkEvent *event,
gpointer data )
{
gtk_main_quit();
return(FALSE);
}
/* 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_set_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);
}
/* example-end */