e7eb55d954
* Modified demos/gtk-demo to test multihead support * added 4 test to gtk-demo (screen, display, virtual screen (xinerama) and "move window").
123 lines
3.3 KiB
C
123 lines
3.3 KiB
C
/* Color Selector
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*
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* GtkColorSelection lets the user choose a color. GtkColorSelectionDialog is
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* a prebuilt dialog containing a GtkColorSelection.
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*
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*/
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#include <gtk/gtk.h>
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#include <demo-common.h>
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static GtkWidget *frame;
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static void
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change_color_callback (GtkWidget *button,
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gpointer data)
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{
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GtkWidget *dialog;
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GtkColorSelection *colorsel;
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gint response;
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GtkWidget *window = get_cached_widget (button, "do_colorsel");
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GtkWidget *da = get_cached_widget (button, "do_colorsel_da");
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GdkColor *color = get_cached_pointer (button, "do_colorsel_color");
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dialog = gtk_color_selection_dialog_new ("Changing color");
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gtk_window_set_transient_for (GTK_WINDOW (dialog), GTK_WINDOW (window));
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colorsel = GTK_COLOR_SELECTION (GTK_COLOR_SELECTION_DIALOG (dialog)->colorsel);
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gtk_color_selection_set_previous_color (colorsel, color);
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gtk_color_selection_set_current_color (colorsel, color);
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gtk_color_selection_set_has_palette (colorsel, TRUE);
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response = gtk_dialog_run (GTK_DIALOG (dialog));
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if (response == GTK_RESPONSE_OK)
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{
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gtk_color_selection_get_current_color (colorsel,
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color);
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gtk_widget_modify_bg (da, GTK_STATE_NORMAL, color);
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}
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g_free (color);
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gtk_widget_destroy (dialog);
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}
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GtkWidget *
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do_colorsel (GtkWidget *do_widget)
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{
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GtkWidget *vbox;
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GtkWidget *button;
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GtkWidget *alignment;
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GtkWidget *da;
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GtkWidget *window = get_cached_widget (do_widget, "do_colorsel");
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GdkColor *color;
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if (!window)
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{
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color = g_new (GdkColor, 1);
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color->red = 0;
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color->blue = 65535;
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color->green = 0;
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window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
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gtk_window_set_screen (GTK_WINDOW (window),
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gtk_widget_get_screen (do_widget));
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cache_widget (window, "do_colorsel");
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cache_pointer (window, "do_colorsel_color", color);
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gtk_window_set_title (GTK_WINDOW (window), "Color Selection");
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g_signal_connect (window, "destroy",
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G_CALLBACK (remove_cached_widget),
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"do_colorsel");
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gtk_container_set_border_width (GTK_CONTAINER (window), 8);
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vbox = gtk_vbox_new (FALSE, 8);
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gtk_container_set_border_width (GTK_CONTAINER (vbox), 8);
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gtk_container_add (GTK_CONTAINER (window), vbox);
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/*
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* Create the color swatch area
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*/
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frame = gtk_frame_new (NULL);
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gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
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gtk_box_pack_start (GTK_BOX (vbox), frame, TRUE, TRUE, 0);
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da = gtk_drawing_area_new ();
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/* set a minimum size */
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gtk_widget_set_size_request (da, 200, 200);
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/* set the color */
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gtk_widget_modify_bg (da, GTK_STATE_NORMAL, color);
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gtk_container_add (GTK_CONTAINER (frame), da);
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cache_widget (da, "do_colorsel_da");
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alignment = gtk_alignment_new (1.0, 0.5, 0.0, 0.0);
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button = gtk_button_new_with_mnemonic ("_Change the above color");
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gtk_container_add (GTK_CONTAINER (alignment), button);
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gtk_box_pack_start (GTK_BOX (vbox), alignment, FALSE, FALSE, 0);
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g_signal_connect (button, "clicked",
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G_CALLBACK (change_color_callback), NULL);
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}
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if (!GTK_WIDGET_VISIBLE (window))
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{
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gtk_widget_show_all (window);
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}
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else
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{
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gtk_widget_destroy (window);
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window = NULL;
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}
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return window;
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}
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