gtk2/tests/testcolorchooser.c
Matthias Clasen 32f1a5ad83 Add a button to back to the palette
This is just for trying this out; if it is considered good,
it will be moved into GtkColorChooserDialog
2012-02-14 16:36:59 -05:00

130 lines
3.8 KiB
C

#include <gtk/gtk.h>
static void
color_changed (GObject *o, GParamSpec *pspect, gpointer data)
{
GdkRGBA color;
gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (o), &color);
g_print ("color changed: %g %g %g %g\n",
color.red, color.green, color.blue, color.alpha);
}
static void
dialog_response (GtkDialog *dialog, gint response)
{
GdkRGBA color;
switch (response)
{
case GTK_RESPONSE_OK:
gtk_color_chooser_get_rgba (GTK_COLOR_CHOOSER (dialog), &color);
g_print ("color accepted: %g %g %g %g\n",
color.red, color.green, color.blue, color.alpha);
break;
default:
g_print ("canceled\n");
break;
}
gtk_main_quit ();
}
static void
show_editor_cb (GtkWidget *dialog, GParamSpec *pspec, GtkWidget *button)
{
gboolean show_editor;
g_object_get (dialog, "show-editor", &show_editor, NULL);
gtk_widget_set_visible (button, show_editor);
}
static void
go_to_palette (GtkWidget *button, GtkWidget *dialog)
{
g_object_set (dialog, "show-editor", FALSE, NULL);
}
int
main (int argc, char *argv[])
{
GtkWidget *dialog;
GtkWidget *button;
GtkWidget *aa;
GtkWidget *image;
gint i;
gtk_init (NULL, NULL);
dialog = gtk_color_chooser_dialog_new ("Select a color", NULL);
button = gtk_button_new ();
image = gtk_image_new_from_icon_name ("view-grid-symbolic", GTK_ICON_SIZE_MENU);
gtk_widget_show (image);
gtk_container_add (GTK_CONTAINER (button), image);
aa = gtk_dialog_get_action_area (GTK_DIALOG (dialog));
gtk_container_add (GTK_CONTAINER (aa), button);
gtk_widget_set_no_show_all (button, TRUE);
gtk_button_box_set_child_secondary (GTK_BUTTON_BOX (aa), button, TRUE);
gtk_button_box_set_child_non_homogeneous (GTK_BUTTON_BOX (aa), button, TRUE);
gtk_widget_set_tooltip_text (button, "Show color palette");
g_signal_connect (dialog, "notify::show-editor", G_CALLBACK (show_editor_cb), button);
g_signal_connect (button, "clicked", G_CALLBACK (go_to_palette), dialog);
for (i = 1; i < argc; i++)
{
if (g_strcmp0 (argv[i], "--no-alpha") == 0)
{
g_print ("turning alpha off\n");
gtk_color_chooser_set_use_alpha (GTK_COLOR_CHOOSER (dialog), FALSE);
}
else if (g_strcmp0 (argv[i], "--edit") == 0)
{
g_print ("starting in edit mode\n");
g_object_set (dialog, "show-editor", TRUE, NULL);
}
else if (g_strcmp0 (argv[i], "--palette") == 0)
{
const gchar *c[4] = { "red", "maroon", "yellow", "green" };
GdkRGBA color;
GdkRGBA colors[36];
gint i,j;
gdouble f[5] = { 0.2, 0.35, 0.5, 0.65, 0.8 };
g_print ("setting custom palette\n");
for (i = 0; i < 4; i++)
{
gdk_rgba_parse (&color, c[i]);
for (j = 0; j < 5; j++)
{
colors[i*9 + j].red = f[j]*color.red;
colors[i*9 + j].green = f[j]*color.green;
colors[i*9 + j].blue = f[j]*color.blue;
colors[i*9 + j].alpha = 1;
}
for (j = 5; j < 9; j++)
{
colors[i*9 + j].red = f[9-j]*color.red + (1-f[9-j]);
colors[i*9 + j].green = f[9-j]*color.green + (1-f[9-j]);
colors[i*9 + j].blue = f[9-j]*color.blue + (1-f[9-j]);
colors[i*9 + j].alpha = 1;
}
}
gtk_color_chooser_add_palette (GTK_COLOR_CHOOSER (dialog),
FALSE,
9, 36,
colors);
}
}
g_signal_connect (dialog, "notify::color", G_CALLBACK (color_changed), NULL);
g_signal_connect (dialog, "response", G_CALLBACK (dialog_response), NULL);
gtk_widget_show_all (dialog);
gtk_main ();
return 0;
}