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/*
* OWL (OpenedHand Widget Library) Colour Palette.
*
* Author: Rob Bradford <rob@openedhand.com>
*
* Copyright (C) 2007 OpenedHand Ltd.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "owlcolourpalette.h"
#include "owlcolourswatch.h"
#include <gtk/gtk.h>
G_DEFINE_TYPE (OwlColourPalette, owl_colour_palette, GTK_TYPE_TABLE);
#define COLOUR_PALETTE_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE ((o), OWL_TYPE_COLOUR_PALETTE, OwlColourPalettePrivate))
typedef struct _OwlColourPalettePrivate OwlColourPalettePrivate;
struct _OwlColourPalettePrivate
{
};
enum {
COLOUR_SELECTED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
static void
owl_colour_palette_get_property (GObject *object, guint property_id,
GValue *value, GParamSpec *pspec)
{
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
owl_colour_palette_set_property (GObject *object, guint property_id,
const GValue *value, GParamSpec *pspec)
{
switch (property_id) {
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
}
}
static void
owl_colour_palette_dispose (GObject *object)
{
if (G_OBJECT_CLASS (owl_colour_palette_parent_class)->dispose)
G_OBJECT_CLASS (owl_colour_palette_parent_class)->dispose (object);
}
static void
owl_colour_palette_finalize (GObject *object)
{
G_OBJECT_CLASS (owl_colour_palette_parent_class)->finalize (object);
}
static void
owl_colour_palette_class_init (OwlColourPaletteClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
g_type_class_add_private (klass, sizeof (OwlColourPalettePrivate));
object_class->get_property = owl_colour_palette_get_property;
object_class->set_property = owl_colour_palette_set_property;
object_class->dispose = owl_colour_palette_dispose;
object_class->finalize = owl_colour_palette_finalize;
signals[COLOUR_SELECTED] = g_signal_new ("colour-selected",
G_OBJECT_CLASS_TYPE (object_class),
G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
G_STRUCT_OFFSET (OwlColourPaletteClass, colour_selected),
NULL, NULL,
g_cclosure_marshal_VOID__OBJECT,
GTK_TYPE_NONE, 1,
OWL_TYPE_COLOUR_SWATCH);
}
static void
owl_colour_palette_init (OwlColourPalette *self)
{
}
static void
button_clicked (GtkButton *widget, gpointer user_data)
{
GtkWidget *swatch = gtk_bin_get_child (GTK_BIN (widget));
g_signal_emit (user_data, signals[COLOUR_SELECTED], 0, OWL_COLOUR_SWATCH (swatch));
}
GtkWidget*
owl_colour_palette_new (guint n_rows, guint n_columns)
{
GtkWidget *widget;
guint i, j;
widget = GTK_WIDGET(g_object_new (OWL_TYPE_COLOUR_PALETTE, NULL));
gtk_table_resize (GTK_TABLE (widget), n_rows, n_columns);
for (i = 0; i < n_rows; i++)
{
for (j = 0; j < n_columns ; j++)
{
GtkWidget *button;
GtkWidget *swatch;
swatch = owl_colour_swatch_new ();
button = gtk_button_new ();
gtk_button_set_relief (GTK_BUTTON (button), GTK_RELIEF_NONE);
g_signal_connect (button, "clicked", (GCallback)button_clicked, widget);
gtk_container_add (GTK_CONTAINER (button), swatch);
gtk_table_attach_defaults (GTK_TABLE(widget), button, i, i+1, j, j+1);
}
}
return widget;
}
void
owl_colour_palette_set_colours (OwlColourPalette *palette, guint32 colours[], guint nr_colours)
{
GList *cur_entry;
guint pos = 0;
for (cur_entry = GTK_TABLE(palette)->children; cur_entry != NULL; cur_entry = g_list_next (cur_entry))
{
GtkTableChild *child;
GtkWidget *button;
GtkWidget *swatch;
if (nr_colours == pos)
break;
child = (GtkTableChild *)(cur_entry->data);
button = child->widget;
swatch = gtk_bin_get_child (GTK_BIN (button));
owl_colour_swatch_set_colour (OWL_COLOUR_SWATCH (swatch), colours[pos]);
pos++;
}
}
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