/* * * 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 int which = 1, timeout = 0;static GtkWidget *spinner, *visible, *pixmap1, *pixmap2, *pixmap3;static GtkWidget *button1, *button2, *button3, *label;static GtkAdjustment *adj;static voidNextCallback(GtkWidget *widget, gpointer dummy){  which++;  if ( which == 4 )    which = 1;  gtk_adjustment_set_value( adj, (float) which );}static voidPrevCallback(GtkWidget *widget, gpointer dummy){  which--;  if ( which == 0 )    which = 3;  gtk_adjustment_set_value( adj, (float) which );}static voidSpinnerCallback( GtkAdjustment *adj, gpointer dummy){  GdkPixmap *gdkPixmap;  GdkBitmap *gdkBitmap;  GtkWidget *current;  which = (int) adj->value;  if ( which == 1 )     current = pixmap1;  else if ( which == 2 )    current = pixmap2;  else    current = pixmap3;  gtk_pixmap_get(GTK_PIXMAP( current ), &gdkPixmap, &gdkBitmap);  gtk_pixmap_set(GTK_PIXMAP( visible ), gdkPixmap, gdkBitmap);}intSlidesTimerCallback(gpointer dummy){  gtk_spin_button_spin( GTK_SPIN_BUTTON( spinner ),     GTK_SPIN_STEP_FORWARD, 0 );  return 1;}static voidSlidesCallback(GtkWidget *widget, gpointer dummy){  static void CancelCallback(GtkWidget *widget, gpointer dummy);  if ( GTK_WIDGET_SENSITIVE( button1 ) == FALSE ) {    CancelCallback( widget, dummy );    return;   }  gtk_spin_button_set_value(GTK_SPIN_BUTTON(spinner), 1.0);  timeout = gtk_timeout_add(5000, SlidesTimerCallback, NULL);  gtk_widget_set_sensitive( button1, FALSE );  gtk_widget_set_sensitive( button2, FALSE );  gtk_label_set_text( GTK_LABEL( label ), "Cancel Slide Show" );}static voidCancelCallback(GtkWidget *widget, gpointer dummy){  if ( timeout ) {    gtk_timeout_remove(timeout);    timeout = 0;  }  gtk_widget_set_sensitive( button1, TRUE );  gtk_widget_set_sensitive( button2, TRUE );  gtk_label_set_text( GTK_LABEL( label ), "Slide Show" );}static GtkWidget *new_pixmap (char *file, GdkWindow *window, GdkColor *background){  GdkPixmap *pmap;  GdkBitmap *mask;  GtkWidget *wpmap;  pmap = gdk_pixmap_create_from_xpm(window, &mask, background, file);  wpmap = gtk_pixmap_new(pmap, mask);  return( wpmap );}main( int argc, char *argv[] ){  GtkWidget *dialog_window;  gtk_init( &argc, &argv );  dialog_window = gtk_dialog_new();  gtk_window_position (GTK_WINDOW (dialog_window), GTK_WIN_POS_MOUSE);  gtk_widget_show( dialog_window );  visible = new_pixmap ("pic1.xpm", dialog_window->window,     &dialog_window->style->bg[GTK_STATE_NORMAL]);  gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog_window)->vbox),     visible, TRUE, TRUE, 0);  pixmap1 = new_pixmap ("pic1.xpm", dialog_window->window,     &dialog_window->style->bg[GTK_STATE_NORMAL]);  pixmap2 = new_pixmap ("pic2.xpm", dialog_window->window,     &dialog_window->style->bg[GTK_STATE_NORMAL]);  pixmap3 = new_pixmap ("pic3.xpm", dialog_window->window,     &dialog_window->style->bg[GTK_STATE_NORMAL]);  button2 = gtk_button_new_with_label ("Prev");  gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog_window)->action_area),     button2, TRUE, TRUE, 0);  gtk_signal_connect (GTK_OBJECT (button2), "clicked",     GTK_SIGNAL_FUNC(PrevCallback), dialog_window);  button1 = gtk_button_new_with_label ("Next");  gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog_window)->action_area),     button1, TRUE, TRUE, 0);  gtk_signal_connect (GTK_OBJECT (button1), "clicked",     GTK_SIGNAL_FUNC(NextCallback), dialog_window);  adj = (GtkAdjustment *) gtk_adjustment_new( 1.0, 1.0, 3.0, 1.0, 1.0, 1.0 );  gtk_signal_connect(GTK_OBJECT(adj), "value_changed",    GTK_SIGNAL_FUNC (SpinnerCallback), NULL);  spinner = gtk_spin_button_new( GTK_ADJUSTMENT(adj), 0.0, 0.0 );  gtk_spin_button_set_wrap(GTK_SPIN_BUTTON(spinner), TRUE);  gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog_window)->action_area),     spinner, TRUE, TRUE, 0);  button3 = gtk_button_new();  label = gtk_label_new( "Slide Show" );  gtk_container_add( GTK_CONTAINER( button3 ), label );  gtk_box_pack_start (GTK_BOX (GTK_DIALOG (dialog_window)->action_area),     button3, TRUE, TRUE, 0);  gtk_signal_connect (GTK_OBJECT (button3), "clicked",     GTK_SIGNAL_FUNC(SlidesCallback), NULL);  gtk_widget_show_all (dialog_window);  gtk_main();}