+++ /dev/null
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/*
- * widget-color-combo.c - A color selector combo box
- * Copyright 2000, 2001, Ximian, Inc.
- *
- * Authors:
- * Miguel de Icaza (miguel@kernel.org)
- * Dom Lachowicz (dominicl@seas.upenn.edu)
- *
- * Reworked and split up into a separate ColorPalette object:
- * Michael Levy (mlevy@genoscope.cns.fr)
- *
- * And later revised and polished by:
- * Almer S. Tigelaar (almer@gnome.org)
- *
- * Modified for gLabels by:
- * Jim Evins <evins@snaught.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public
- * License, version 2, as published by the Free Software Foundation.
- *
- * 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
- * General Public License for more details.
- *
- * You should have received a copy of the GNU 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 <config.h>
-
-#include <gtk/gtkentry.h>
-#include <gtk/gtksignal.h>
-#include <gtk/gtkimage.h>
-#include "e-util.h"
-#include "e-colors.h"
-#include "widget-color-combo.h"
-
-enum {
- CHANGED,
- LAST_SIGNAL
-};
-
-static guint color_combo_signals [LAST_SIGNAL] = { 0, };
-
-#define PARENT_TYPE MYGAL_COMBO_BOX_TYPE
-static GObjectClass *color_combo_parent_class;
-
-#define make_color(CC,COL) (((COL) != NULL) ? (COL) : ((CC) ? ((CC)->default_color) : NULL))
-#define RGBA_TO_UINT(r,g,b,a) ((((guint)(r))<<24)|(((guint)(g))<<16)|(((guint)(b))<<8)|(guint)(a))
-#define GDK_TO_UINT(c) RGBA_TO_UINT(((c).red>>8), ((c).green>>8), ((c).blue>>8), 0xff)
-
-#define PREVIEW_SIZE 20
-
-static void
-color_combo_set_color_internal (ColorCombo *cc, GdkColor *color)
-{
- guint color_y, color_height;
- guint height, width;
- GdkPixbuf *pixbuf;
- GdkPixbuf *color_pixbuf;
- GdkColor *new_color;
- GdkColor *outline_color;
-
- new_color = make_color (cc,color);
- /* If the new and the default are NULL draw an outline */
- outline_color = (new_color) ? new_color : &e_dark_gray;
-
- pixbuf = gtk_image_get_pixbuf (GTK_IMAGE (cc->preview_image));
-
- if (!pixbuf)
- return;
-
- width = gdk_pixbuf_get_width (pixbuf);
- height = gdk_pixbuf_get_height (pixbuf);
-
- if (cc->preview_is_icon) {
- color_y = height - 4;
- color_height = 4;
- }
- else {
- color_y = 0;
- color_height = height;
- }
-
- color_pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
- TRUE, 8,
- width,
- color_height);
- gdk_pixbuf_fill (color_pixbuf, GDK_TO_UINT (*outline_color));
- gdk_pixbuf_copy_area (color_pixbuf, 0, 0, width, color_height,
- pixbuf, 0, color_y);
-
- if (new_color != NULL)
- gdk_pixbuf_fill (color_pixbuf, GDK_TO_UINT (*new_color));
- else
- gdk_pixbuf_fill (color_pixbuf, 0xffffff00);
- gdk_pixbuf_copy_area (color_pixbuf, 0, 0, width - 2, color_height -2,
- pixbuf, 1, color_y + 1);
-
- g_object_unref (color_pixbuf);
-
- gtk_widget_queue_draw (GTK_WIDGET (cc));
-}
-
-static void
-color_combo_class_init (GObjectClass *object_class)
-{
- color_combo_parent_class = g_type_class_ref (PARENT_TYPE);
-
- color_combo_signals [CHANGED] =
- g_signal_new ("color_changed",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ColorComboClass, color_changed),
- NULL, NULL,
- e_marshal_NONE__POINTER_BOOLEAN_BOOLEAN_BOOLEAN,
- G_TYPE_NONE, 4, G_TYPE_POINTER,
- G_TYPE_BOOLEAN, G_TYPE_BOOLEAN, G_TYPE_BOOLEAN);
-}
-
-E_MAKE_TYPE (color_combo,
- "ColorCombo",
- ColorCombo,
- color_combo_class_init,
- NULL,
- PARENT_TYPE)
-
-/*
- * Fires signal "color_changed" with the current color as its param
- */
-static void
-emit_color_changed (ColorCombo *cc, GdkColor *color,
- gboolean is_custom, gboolean by_user, gboolean is_default)
-{
- g_signal_emit (cc,
- color_combo_signals [CHANGED], 0,
- color, is_custom, by_user, is_default);
- mygal_combo_box_popup_hide (MYGAL_COMBO_BOX (cc));
-}
-
-static void
-cb_palette_color_changed (ColorPalette *P, GdkColor *color,
- gboolean custom, gboolean by_user, gboolean is_default,
- ColorCombo *cc)
-{
- color_combo_set_color_internal (cc, color);
- emit_color_changed (cc, color, custom, by_user, is_default);
-}
-
-static void
-preview_clicked (GtkWidget *button, ColorCombo *cc)
-{
- gboolean is_default;
- GdkColor *color = color_palette_get_current_color (cc->palette, &is_default);
- emit_color_changed (cc, color, FALSE, TRUE, is_default);
- if (color)
- gdk_color_free (color);
-}
-
-static void
-cb_cust_color_clicked (GtkWidget *widget, ColorCombo *cc)
-{
- mygal_combo_box_popup_hide (MYGAL_COMBO_BOX (cc));
-}
-
-/*
- * Creates the color table
- */
-static void
-color_table_setup (ColorCombo *cc,
- char const *no_color_label, ColorGroup *color_group)
-{
- g_return_if_fail (cc != NULL);
-
- /* Tell the palette that we will be changing it's custom colors */
- cc->palette =
- COLOR_PALETTE (color_palette_new (no_color_label,
- cc->default_color,
- color_group));
-
- {
- GtkWidget *picker = color_palette_get_color_picker (cc->palette);
- g_signal_connect (picker, "clicked",
- G_CALLBACK (cb_cust_color_clicked), cc);
- }
-
- g_signal_connect (cc->palette, "color_changed",
- G_CALLBACK (cb_palette_color_changed), cc);
-
- gtk_widget_show_all (GTK_WIDGET (cc->palette));
-
- return;
-}
-
-void
-color_combo_box_set_preview_relief (ColorCombo *cc, GtkReliefStyle relief)
-{
- g_return_if_fail (cc != NULL);
- g_return_if_fail (IS_COLOR_COMBO (cc));
-
- gtk_button_set_relief (GTK_BUTTON (cc->preview_button), relief);
-}
-
-/*
- * Where the actual construction goes on
- */
-static void
-color_combo_construct (ColorCombo *cc, GdkPixbuf *icon,
- char const *no_color_label,
- ColorGroup *color_group)
-{
- GdkColor *color;
- GdkPixbuf *pixbuf = NULL;
-
- g_return_if_fail (cc != NULL);
- g_return_if_fail (IS_COLOR_COMBO (cc));
-
- /*
- * Our button with the gtk_image preview
- */
- cc->preview_button = gtk_button_new ();
- cc->preview_is_icon = FALSE;
-
- if (icon)
- /* use icon only if size > 4*4 */
- if ((gdk_pixbuf_get_width (icon) > 4) &&
- (gdk_pixbuf_get_height (icon) > 4))
- {
- cc->preview_is_icon = TRUE;
- pixbuf = gdk_pixbuf_copy (icon);
- }
-
- if (pixbuf == NULL)
- pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB,
- TRUE, 8,
- PREVIEW_SIZE,
- PREVIEW_SIZE);
-
- cc->preview_image = gtk_image_new_from_pixbuf (pixbuf);
- g_object_unref (pixbuf);
-
- gtk_button_set_relief (GTK_BUTTON (cc->preview_button), GTK_RELIEF_NONE);
- gtk_widget_show (cc->preview_image);
-
- gtk_container_add (GTK_CONTAINER (cc->preview_button), cc->preview_image);
- g_signal_connect (cc->preview_button, "clicked",
- G_CALLBACK (preview_clicked), cc);
-
- color_table_setup (cc, no_color_label, color_group);
-
- gtk_widget_show_all (cc->preview_button);
-
- mygal_combo_box_construct (MYGAL_COMBO_BOX (cc),
- cc->preview_button,
- GTK_WIDGET (cc->palette));
-
- mygal_combo_box_set_tearable (MYGAL_COMBO_BOX (cc), FALSE);
-
- color = color_palette_get_current_color (cc->palette, NULL);
- color_combo_set_color_internal (cc, color);
- if (color) gdk_color_free (color);
-}
-
-/* color_combo_get_color:
- *
- * Return current color, result must be freed with gdk_color_free !
- */
-GdkColor *
-color_combo_get_color (ColorCombo *cc, gboolean *is_default)
-{
- return color_palette_get_current_color (cc->palette, is_default);
-}
-
-/**
- * color_combo_set_color
- * @cc The combo
- * @color The color
- *
- * Set the color of the combo to the given color. Causes the color_changed
- * signal to be emitted.
- */
-void
-color_combo_set_color (ColorCombo *cc, GdkColor *color)
-{
- /* This will change the color on the palette than it will invoke
- * cb_palette_color_changed which will call emit_color_changed and
- * set_color_internal which will change the color on our preview and
- * will let the users of the combo know that the current color has
- * changed
- */
- if (color != NULL)
- gdk_rgb_find_color (gtk_widget_get_colormap (GTK_WIDGET (cc)), color);
- color_palette_set_current_color (cc->palette, color);
-}
-
-/**
- * color_combo_set_color_to_default
- * @cc The combo
- *
- * Set the color of the combo to the default color. Causes the color_changed
- * signal to be emitted.
- */
-void
-color_combo_set_color_to_default (ColorCombo *cc)
-{
- color_palette_set_color_to_default (cc->palette);
-}
-
-/**
- * color_combo_new :
- * icon : optionally NULL.
- * , const char *no_color_label,
- * Default constructor. Pass an optional icon and an optional label for the
- * no/auto color button.
- */
-GtkWidget *
-color_combo_new (GdkPixbuf *icon, char const *no_color_label,
- GdkColor *default_color,
- ColorGroup *color_group)
-{
- ColorCombo *cc;
-
- cc = g_object_new (COLOR_COMBO_TYPE, NULL);
-
- if ( default_color )
- {
- cc->default_color = gdk_color_copy (default_color);
- }
-
- color_combo_construct (cc, icon, no_color_label, color_group);
-
- return GTK_WIDGET (cc);
-}
projects / glabels / blobdiff