/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-shell-folder-title-bar.c
*
* Copyright (C) 2000 Helix Code, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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 program; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: Ettore Perazzoli
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <gnome.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include "widgets/misc/e-clipped-label.h"
#include "e-util/e-util.h"
#include "e-shell-constants.h"
#include "e-shell-folder-title-bar.h"
#define PARENT_TYPE GTK_TYPE_EVENT_BOX
static GtkEventBox *parent_class = NULL;
struct _EShellFolderTitleBarPrivate {
GdkPixbuf *icon;
GtkWidget *icon_widget;
GtkWidget *hbox;
GtkWidget *label;
GtkWidget *button_hbox;
GtkWidget *button;
};
enum {
TITLE_CLICKED,
LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };
/* Icon handling. */
static unsigned int
rgb_from_gdk_color (GdkColor *color)
{
return (((color->red >> 8) << 16) |
((color->green >> 8) << 8) |
((color->blue >> 8)));
}
static GdkPixmap *
make_icon_pixmap (EShellFolderTitleBar *folder_title_bar,
const GdkPixbuf *pixbuf)
{
GdkPixmap *pixmap;
GtkWidget *widget;
unsigned int depth;
unsigned int rgb;
widget = GTK_WIDGET (folder_title_bar);
rgb = rgb_from_gdk_color (&widget->style->bg[GTK_STATE_NORMAL]);
depth = gtk_widget_get_visual (widget)->depth;
pixmap = gdk_pixmap_new (GTK_WIDGET (folder_title_bar)->window,
E_SHELL_MINI_ICON_SIZE, E_SHELL_MINI_ICON_SIZE,
depth);
if (pixbuf == NULL) {
gdk_draw_rectangle (pixmap, widget->style->bg_gc[GTK_STATE_NORMAL], TRUE,
0, 0, E_SHELL_MINI_ICON_SIZE, E_SHELL_MINI_ICON_SIZE);
} else {
GdkPixbuf *composited_pixbuf;
composited_pixbuf = gdk_pixbuf_composite_color_simple
(pixbuf, gdk_pixbuf_get_width (pixbuf), gdk_pixbuf_get_height (pixbuf),
GDK_INTERP_NEAREST, 255, 32, rgb, rgb);
gdk_pixbuf_render_to_drawable (composited_pixbuf,
pixmap, widget->style->fg_gc[GTK_STATE_NORMAL],
0, 0, 0, 0,
E_SHELL_MINI_ICON_SIZE, E_SHELL_MINI_ICON_SIZE,
GDK_RGB_DITHER_MAX, 0, 0);
gdk_pixbuf_unref (composited_pixbuf);
}
return pixmap;
}
/* Style handling. */
static void
endarken_style (GtkWidget *widget)
{
GtkStyle *style;
GtkRcStyle *new_rc_style;
int i;
style = widget->style;
new_rc_style = gtk_rc_style_new ();
for (i = 0; i < 5; i++) {
new_rc_style->bg[i].red = style->bg[i].red * .8;
new_rc_style->bg[i].green = style->bg[i].green * .8;
new_rc_style->bg[i].blue = style->bg[i].blue * .8;
new_rc_style->fg[i].red = 0xffff;
new_rc_style->fg[i].green = 0xffff;
new_rc_style->fg[i].blue = 0xffff;
new_rc_style->color_flags[i] = GTK_RC_BG | GTK_RC_FG;
}
gtk_widget_modify_style (widget, new_rc_style);
gtk_rc_style_unref (new_rc_style);
}
static void
style_set_cb (GtkWidget *widget,
GtkStyle *previous_style,
void *data)
{
/* This will cause a style_set signal to be emitted again, so we need to do this to prevent infinite recursion. */
gtk_signal_handler_block_by_func (GTK_OBJECT (widget), GTK_SIGNAL_FUNC (style_set_cb), data);
endarken_style (widget);
gtk_signal_handler_unblock_by_func (GTK_OBJECT (widget), GTK_SIGNAL_FUNC (style_set_cb), data);
}
static void
endarken_and_connect_style_set_signal (GtkWidget *widget)
{
endarken_style (widget);
gtk_signal_connect (GTK_OBJECT (widget), "style_set",
GTK_SIGNAL_FUNC (style_set_cb), NULL);
}
static void
setup_style (EShellFolderTitleBar *folder_title_bar)
{
EShellFolderTitleBarPrivate *priv;
priv = folder_title_bar->priv;
/* endarken_and_connect_style_set_signal (priv->button); */
endarken_and_connect_style_set_signal (priv->label);
endarken_and_connect_style_set_signal (GTK_WIDGET (folder_title_bar));
}
/* Button signals. */
static void
title_button_clicked_cb (GtkButton *button,
void *data)
{
EShellFolderTitleBar *folder_title_bar;
folder_title_bar = E_SHELL_FOLDER_TITLE_BAR (data);
gtk_signal_emit (GTK_OBJECT (folder_title_bar), signals[TITLE_CLICKED]);
}
/* GTkWidget methods. */
static void
realize (GtkWidget *widget)
{
EShellFolderTitleBar *folder_title_bar;
EShellFolderTitleBarPrivate *priv;
GdkPixmap *pixmap;
(* GTK_WIDGET_CLASS (parent_class)->realize) (widget);
folder_title_bar = E_SHELL_FOLDER_TITLE_BAR (widget);
priv = folder_title_bar->priv;
pixmap = make_icon_pixmap (folder_title_bar, priv->icon);
priv->icon_widget = gtk_pixmap_new (pixmap, NULL);
gdk_pixmap_unref (pixmap);
gtk_widget_show (priv->icon_widget);
gtk_misc_set_alignment (GTK_MISC (priv->icon_widget), 1.0, .5);
gtk_misc_set_padding (GTK_MISC (priv->icon_widget), 5, 0);
gtk_box_pack_start (GTK_BOX (priv->hbox), priv->icon_widget, TRUE, TRUE, 2);
}
static void
unrealize (GtkWidget *widget)
{
EShellFolderTitleBar *folder_title_bar;
EShellFolderTitleBarPrivate *priv;
(* GTK_WIDGET_CLASS (parent_class)->unrealize) (widget);
folder_title_bar = E_SHELL_FOLDER_TITLE_BAR (widget);
priv = folder_title_bar->priv;
gtk_widget_destroy (priv->icon_widget);
priv->icon_widget = NULL;
}
/* GtkObject methods. */
static void
destroy (GtkObject *object)
{
EShellFolderTitleBar *folder_title_bar;
EShellFolderTitleBarPrivate *priv;
folder_title_bar = E_SHELL_FOLDER_TITLE_BAR (object);
priv = folder_title_bar->priv;
g_free (priv);
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static void
class_init (EShellFolderTitleBarClass *klass)
{
GtkObjectClass *object_class;
GtkWidgetClass *widget_class;
object_class = GTK_OBJECT_CLASS (klass);
object_class->destroy = destroy;
widget_class = GTK_WIDGET_CLASS (klass);
widget_class->realize = realize;
widget_class->unrealize = unrealize;
parent_class = gtk_type_class (PARENT_TYPE);
signals[TITLE_CLICKED] = gtk_signal_new ("title_clicked",
GTK_RUN_FIRST,
object_class->type,
GTK_SIGNAL_OFFSET (EShellFolderTitleBarClass, title_clicked),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
}
static void
init (EShellFolderTitleBar *shell_folder_title_bar)
{
EShellFolderTitleBarPrivate *priv;
priv = g_new (EShellFolderTitleBarPrivate, 1);
priv->icon = NULL;
priv->icon_widget = NULL;
priv->hbox = NULL;
priv->label = NULL;
priv->button_hbox = NULL;
priv->button = NULL;
shell_folder_title_bar->priv = priv;
}
void
e_shell_folder_title_bar_construct (EShellFolderTitleBar *folder_title_bar)
{
EShellFolderTitleBarPrivate *priv;
GtkWidget *widget;
g_return_if_fail (folder_title_bar != NULL);
g_return_if_fail (E_IS_SHELL_FOLDER_TITLE_BAR (folder_title_bar));
priv = folder_title_bar->priv;
widget = GTK_WIDGET (folder_title_bar);
priv->label = e_clipped_label_new ("");
gtk_misc_set_padding (GTK_MISC (priv->label), 5, 0);
gtk_misc_set_alignment (GTK_MISC (priv->label), 0.0, 0.5);
gtk_widget_show (priv->label);
#if 0
priv->button = gtk_button_new ();
gtk_button_set_relief (GTK_BUTTON (priv->button), GTK_RELIEF_NONE);
gtk_container_add (GTK_CONTAINER (priv->button), priv->label);
GTK_WIDGET_UNSET_FLAGS (priv->button, GTK_CAN_FOCUS);
gtk_widget_show (priv->button);
#endif
priv->hbox = gtk_hbox_new (FALSE, 0);
gtk_box_pack_start (GTK_BOX (priv->hbox), priv->label, TRUE, TRUE, 0);
gtk_widget_show (priv->hbox);
#if 0
gtk_signal_connect (GTK_OBJECT (priv->button), "clicked",
GTK_SIGNAL_FUNC (title_button_clicked_cb), folder_title_bar);
#endif
gtk_container_add (GTK_CONTAINER (folder_title_bar), priv->hbox);
setup_style (folder_title_bar);
e_shell_folder_title_bar_set_title (folder_title_bar, NULL);
}
GtkWidget *
e_shell_folder_title_bar_new (void)
{
EShellFolderTitleBar *new;
new = gtk_type_new (e_shell_folder_title_bar_get_type ());
e_shell_folder_title_bar_construct (new);
return GTK_WIDGET (new);
}
void
e_shell_folder_title_bar_set_title (EShellFolderTitleBar *folder_title_bar,
const char *title)
{
EShellFolderTitleBarPrivate *priv;
g_return_if_fail (folder_title_bar != NULL);
g_return_if_fail (E_IS_SHELL_FOLDER_TITLE_BAR (folder_title_bar));
priv = folder_title_bar->priv;
if (title == NULL)
e_clipped_label_set_text (E_CLIPPED_LABEL (priv->label), _("(Untitled)"));
else
e_clipped_label_set_text (E_CLIPPED_LABEL (priv->label), title);
/* FIXME: There seems to be a bug in EClippedLabel, this is just a workaround. */
gtk_widget_queue_draw (GTK_WIDGET (folder_title_bar));
}
void
e_shell_folder_title_bar_set_icon (EShellFolderTitleBar *folder_title_bar,
const GdkPixbuf *icon)
{
EShellFolderTitleBarPrivate *priv;
GdkPixmap *pixmap;
g_return_if_fail (folder_title_bar != NULL);
g_return_if_fail (E_IS_SHELL_FOLDER_TITLE_BAR (folder_title_bar));
priv = folder_title_bar->priv;
pixmap = make_icon_pixmap (folder_title_bar, icon);
gtk_pixmap_set (GTK_PIXMAP (priv->icon_widget), pixmap, NULL);
}
E_MAKE_TYPE (e_shell_folder_title_bar, "EShellFolderTitleBar", EShellFolderTitleBar, class_init, init, PARENT_TYPE)
