mirror of https://github.com/GNOME/gimp.git
165 lines
3.9 KiB
C
165 lines
3.9 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* colorsel_gtk module (C) 1998 Austin Donnelly <austin@greenend.org.uk>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include <stdio.h>
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#include <gtk/gtk.h>
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#include <libgimp/color_selector.h>
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#include <libgimp/gimpmodule.h>
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/* prototypes */
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static GtkWidget * colorsel_gtk_new (int, int, int,
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GimpColorSelector_Callback, void *,
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void **);
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static void colorsel_gtk_free (void *);
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static void colorsel_gtk_setcolor (void *, int, int, int, int);
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static void colorsel_gtk_update (GtkWidget *, gpointer);
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/* local methods */
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static GimpColorSelectorMethods methods =
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{
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colorsel_gtk_new,
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colorsel_gtk_free,
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colorsel_gtk_setcolor
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};
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static GimpModuleInfo info = {
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NULL,
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"GTK colour selector as a pluggable colour selector",
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"Austin Donnelly <austin@gimp.org>",
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"v0.02",
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"(c) 1999, released under the GPL",
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"17 Jan 1999"
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};
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/* globaly exported init function */
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G_MODULE_EXPORT GimpModuleStatus
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module_init (GimpModuleInfo **inforet)
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{
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GimpColorSelectorID id;
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id = gimp_color_selector_register ("GTK", &methods);
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if (id)
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{
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info.shutdown_data = id;
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*inforet = &info;
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return GIMP_MODULE_OK;
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}
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else
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{
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return GIMP_MODULE_UNLOAD;
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}
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}
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G_MODULE_EXPORT void
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module_unload (void *shutdown_data,
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void (*completed_cb)(void *),
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void *completed_data)
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{
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gimp_color_selector_unregister (shutdown_data, completed_cb, completed_data);
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}
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/**************************************************************/
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/* GTK colour selector methods */
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typedef struct {
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GtkWidget *selector;
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GimpColorSelector_Callback callback;
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void *client_data;
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} ColorselGtk;
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static GtkWidget *
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colorsel_gtk_new (int r, int g, int b,
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GimpColorSelector_Callback callback, void *client_data,
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/* RETURNS: */
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void **selector_data)
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{
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ColorselGtk *p;
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p = g_malloc (sizeof (ColorselGtk));
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p->selector = gtk_color_selection_new ();
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p->callback = callback;
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p->client_data = client_data;
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colorsel_gtk_setcolor (p, r, g, b, FALSE);
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gtk_signal_connect (GTK_OBJECT (p->selector), "color_changed",
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(GtkSignalFunc) colorsel_gtk_update, p);
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(*selector_data) = p;
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return p->selector;
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}
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static void
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colorsel_gtk_free (void *data)
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{
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ColorselGtk *p = data;
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/* don't need to gtk_widget_destroy() the selector, since that's
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* done for us. */
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g_free (p);
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}
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static void
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colorsel_gtk_setcolor (void *data,
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int r, int g, int b, int set_current)
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{
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ColorselGtk *p = data;
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double color[3];
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color[0] = ((gdouble) r) / 255.999;
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color[1] = ((gdouble) g) / 255.999;
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color[2] = ((gdouble) b) / 255.999;
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gtk_color_selection_set_color (GTK_COLOR_SELECTION (p->selector), color);
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}
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static void
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colorsel_gtk_update (GtkWidget *widget, gpointer data)
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{
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ColorselGtk *p = data;
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int r;
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int g;
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int b;
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double color[3];
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gtk_color_selection_get_color (GTK_COLOR_SELECTION (p->selector), color);
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r = (int) (color[0] * 255.999);
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g = (int) (color[1] * 255.999);
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b = (int) (color[2] * 255.999);
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p->callback (p->client_data, r, g, b);
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}
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/* End of colorsel_gtk.c */
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