Commit bee922f0 authored by Matthias Clasen's avatar Matthias Clasen
Browse files

Add the one missing example from the tutorial, colorsel, to source control.

parent 3f01e7e5
CC = gcc
CFLAGS = -Wall \
colorsel: colorsel.c
$(CC) colorsel.c -o colorsel `pkg-config gtk+-2.0 --cflags --libs`
rm -f *.o colorsel
#include <glib.h>
#include <gdk/gdk.h>
#include <gtk/gtk.h>
GtkWidget *colorseldlg = NULL;
GtkWidget *drawingarea = NULL;
GdkColor color;
/* Color changed handler */
void color_changed_cb( GtkWidget *widget,
GtkColorSelection *colorsel )
GdkColor ncolor;
gtk_color_selection_get_current_color (colorsel, &ncolor);
gtk_widget_modify_bg (drawingarea, GTK_STATE_NORMAL, &ncolor);
/* Drawingarea event handler */
gint area_event( GtkWidget *widget,
GdkEvent *event,
gpointer client_data )
gint handled = FALSE;
gint response;
GtkColorSelection *colorsel;
/* Check if we've received a button pressed event */
if (event->type == GDK_BUTTON_PRESS)
handled = TRUE;
/* Create color selection dialog */
if (colorseldlg == NULL)
colorseldlg = gtk_color_selection_dialog_new ("Select background color");
/* Get the ColorSelection widget */
colorsel = GTK_COLOR_SELECTION (GTK_COLOR_SELECTION_DIALOG (colorseldlg)->colorsel);
gtk_color_selection_set_previous_color (colorsel, &color);
gtk_color_selection_set_current_color (colorsel, &color);
gtk_color_selection_set_has_palette (colorsel, TRUE);
/* Connect to the "color_changed" signal, set the client-data
* to the colorsel widget */
g_signal_connect (G_OBJECT (colorsel), "color_changed",
G_CALLBACK (color_changed_cb), (gpointer)colorsel);
/* Show the dialog */
response = gtk_dialog_run (GTK_DIALOG (colorseldlg));
if (response == GTK_RESPONSE_OK)
gtk_color_selection_get_current_color (colorsel, &color);
gtk_widget_modify_bg (drawingarea, GTK_STATE_NORMAL, &color);
gtk_widget_hide (colorseldlg);
return handled;
/* Close down and exit handler */
gint destroy_window( GtkWidget *widget,
GdkEvent *event,
gpointer client_data )
gtk_main_quit ();
return TRUE;
/* Main */
gint main( gint argc,
gchar *argv[] )
GtkWidget *window;
/* Initialize the toolkit, remove gtk-related commandline stuff */
gtk_init (&argc, &argv);
/* Create toplevel window, set title and policies */
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_title (GTK_WINDOW (window), "Color selection test");
gtk_window_set_policy (GTK_WINDOW (window), TRUE, TRUE, TRUE);
/* Attach to the "delete" and "destroy" events so we can exit */
g_signal_connect (GTK_OBJECT (window), "delete_event",
GTK_SIGNAL_FUNC (destroy_window), (gpointer)window);
/* Create drawingarea, set size and catch button events */
drawingarea = gtk_drawing_area_new (); = 0; = 65535; = 0;
gtk_widget_modify_bg (drawingarea, GTK_STATE_NORMAL, &color);
gtk_widget_set_size_request (GTK_WIDGET (drawingarea), 200, 200);
gtk_widget_set_events (drawingarea, GDK_BUTTON_PRESS_MASK);
g_signal_connect (GTK_OBJECT (drawingarea), "event",
GTK_SIGNAL_FUNC (area_event), (gpointer)drawingarea);
/* Add drawingarea to window, then show them both */
gtk_container_add (GTK_CONTAINER (window), drawingarea);
gtk_widget_show (drawingarea);
gtk_widget_show (window);
/* Enter the gtk main loop (this never returns) */
gtk_main ();
/* Satisfy grumpy compilers */
return 0;
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