?? ruler.c
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/* * * Sample Code for Gtk+ Programming in C, 1st Edition, Prentice Hall * * Copyright 2000 - 2002 Syd Logan, All Rights Reserved * * This code is distributed without warranty. You are free to use this * code for any purpose, however, if this code is republished or * redistributed in its original form, as hardcopy or electronically, * then you must include this copyright notice along with the code. * * Questions or comments regarding this code or any bugs it contains can * be directed to the author via e-mail at slogan@cts.com **/#include <gtk/gtk.h>static GtkWidget *vruler, *hruler;static voidToggleCallback(GtkWidget *widget, gpointer dummy){ static int foo = 1;printf( "foo %d\n", foo ); gtk_ruler_set_range (GTK_RULER (hruler), 0, 300, 0, foo ); gtk_ruler_set_range (GTK_RULER (vruler), 0, 300, 0, foo ); foo = foo * 2; if ( foo > 800 ) foo = 1;#if 0 static GtkMetricType metric = GTK_PIXELS; if ( metric == GTK_PIXELS ) metric = GTK_INCHES; else if ( metric == GTK_INCHES ) metric = GTK_CENTIMETERS; else metric = GTK_PIXELS; gtk_ruler_set_metric (GTK_RULER (hruler), metric); gtk_ruler_set_metric (GTK_RULER (vruler), metric);#endif}main( int argc, char *argv[] ){ GtkWidget *dialog_window, *table; GtkWidget *button; gtk_init( &argc, &argv ); dialog_window = gtk_dialog_new(); gtk_window_position (GTK_WINDOW (dialog_window), GTK_WIN_POS_MOUSE); gtk_widget_set_usize (dialog_window, 300, 300); gtk_widget_show( dialog_window ); table = gtk_table_new (2, 2, FALSE); gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog_window)->vbox), table, TRUE, TRUE, 0); hruler = gtk_hruler_new(); gtk_ruler_set_range (GTK_RULER (hruler), 0, 300, 0, 1); gtk_table_attach (GTK_TABLE (table), hruler, 1, 2, 0, 1, GTK_EXPAND | GTK_FILL, GTK_FILL, 0, 0); vruler = gtk_vruler_new(); gtk_ruler_set_range (GTK_RULER (vruler), 0, 300, 0, 1); gtk_table_attach (GTK_TABLE (table), vruler, 0, 1, 1, 2, GTK_FILL, GTK_EXPAND | GTK_FILL, 0, 0); button = gtk_button_new_with_label("Toggle"); gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog_window)->action_area), button, TRUE, TRUE, 0); gtk_signal_connect (GTK_OBJECT (button), "clicked", GTK_SIGNAL_FUNC(ToggleCallback), dialog_window); gtk_widget_show_all (dialog_window); gtk_main();}
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