path: root/widgets/misc/e-title-bar.c

/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/* e-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 <gtk/gtkbox.h>
#include <gtk/gtkbutton.h>
#include <gtk/gtkhbox.h>
#include <gtk/gtklabel.h>
#include <gtk/gtkpixmap.h>
#include <gtk/gtksignal.h>
#include <gtk/gtktypeutils.h>

#include <gal/util/e-util.h>
#include "e-clipped-label.h"

#include "e-title-bar.h"


enum {
    LABEL_BUTTON_PRESS_EVENT,
    BUTTON_CLICKED,
    LAST_SIGNAL
};
static guint signals[LAST_SIGNAL] = { 0 };


/* The pixmaps.  */

static char *close_xpm[] = {
    "12 12 2 1",
    "   c none",
    ".  c #000000000000",
    "            ",
    " ..      .. ",
    " ...    ... ",
    "  ...  ...  ",
    "   ......   ",
    "    ....    ",
    "    ....    ",
    "   ......   ",
    "  ...  ...  ",
    " ...    ... ",
    " ..      .. ",
    "            "
};

static char *pin_xpm[] = {
    "16 16 33 1",
    "   c None",
    ".  c #000000",
    "+  c #74744D",
    "@  c #B2B279",
    "#  c #6C6C46",
    "$  c #CACA9C",
    "%  c #F4F4AD",
    "&  c #85855A",
    "*  c #B1B175",
    "=  c #9A9A66",
    "-  c #A9A98A",
    ";  c #B0B07B",
    ">  c #535353",
    ",  c #818181",
    "'  c #B7B7B7",
    ")  c #D8D8D8",
    "!  c #FFFFFF",
    "~  c #EBEBA1",
    "{  c #8A8A75",
    "]  c #9F9F76",
    "^  c #9E9E75",
    "/  c #8A8A66",
    "(  c #979770",
    "_  c #6B6B46",
    ":  c #28281A",
    "<  c #505034",
    "[  c #666645",
    "}  c #61614D",
    "|  c #818155",
    "1  c #4A4A31",
    "2  c #4D4D34",
    "3  c #6C6C48",
    "4  c #5D5D3E",
    "                ",
    "                ",
    "                ",
    "      .     .   ",
    "      ..   .+.  ",
    "      .@...#$.  ",
    " ......%&*=-;.  ",
    ".>,')!.~{]^/(.  ",
    " ......_:<[}|.  ",
    "      .1...23.  ",
    "      ..   .4.  ",
    "      .     .   ",
    "                ",
    "                ",
    "                ",
    "                "
};
    

#define PARENT_TYPE GTK_TYPE_FRAME
static GtkFrameClass *parent_class = NULL;

struct _ETitleBarPrivate {
    ETitleBarButtonMode button_mode;
    GtkWidget *label;
    GtkWidget *button;
    GtkWidget *close_gtk_pixmap;
    GtkWidget *pin_gtk_pixmap;
};


/* Mode handling.  We put both the close and pin GtkPixmaps into an hbox in the
   button, and hide one of them according to the mode.  */

static void
show_and_hide_pixmaps_according_to_mode (ETitleBar *title_bar)
{
    ETitleBarPrivate *priv;

    priv = title_bar->priv;

    if (priv->close_gtk_pixmap == NULL || priv->pin_gtk_pixmap == NULL)
        return;

    switch (priv->button_mode) {
    case E_TITLE_BAR_BUTTON_MODE_PIN:
        gtk_widget_hide (priv->close_gtk_pixmap);
        gtk_widget_show (priv->pin_gtk_pixmap);
        break;
    case E_TITLE_BAR_BUTTON_MODE_CLOSE:
        gtk_widget_hide (priv->pin_gtk_pixmap);
        gtk_widget_show (priv->close_gtk_pixmap);
        break;
    default:
        g_assert_not_reached ();
    }
}


/* Child signal callbacks.  */

static void
button_realize_cb (GtkWidget *widget,
           gpointer data)
{
    GdkPixmap *close_pixmap;
    GdkBitmap *close_mask;
    GdkPixmap *pin_pixmap;
    GdkBitmap *pin_mask;
    GtkWidget *hbox;
    ETitleBar *title_bar;
    ETitleBarPrivate *priv;

    title_bar = E_TITLE_BAR (data);
    priv = title_bar->priv;

    if (priv->close_gtk_pixmap != NULL)
        return;

    close_pixmap = gdk_pixmap_create_from_xpm_d (GTK_WIDGET (priv->button)->window,
                             &close_mask, NULL, close_xpm);
    priv->close_gtk_pixmap = gtk_pixmap_new (close_pixmap, close_mask);

    pin_pixmap = gdk_pixmap_create_from_xpm_d (GTK_WIDGET (priv->button)->window,
                           &pin_mask, NULL, pin_xpm);
    priv->pin_gtk_pixmap = gtk_pixmap_new (pin_pixmap, pin_mask);

    hbox = gtk_hbox_new (TRUE, 0);
    gtk_widget_show (hbox);
    gtk_box_pack_start (GTK_BOX (hbox), priv->pin_gtk_pixmap, TRUE, TRUE, 0);
    gtk_box_pack_start (GTK_BOX (hbox), priv->close_gtk_pixmap, TRUE, TRUE, 0);

    gtk_container_add (GTK_CONTAINER (priv->button), hbox);

    gdk_pixmap_unref (close_pixmap);
    gdk_bitmap_unref (close_mask);
    gdk_pixmap_unref (pin_pixmap);
    gdk_bitmap_unref (pin_mask);

    show_and_hide_pixmaps_according_to_mode (title_bar);
}

static void
button_clicked_cb (GtkButton *button,
           gpointer data)
{
    ETitleBar *title_bar;

    title_bar = E_TITLE_BAR (data);

    gtk_signal_emit (GTK_OBJECT (title_bar), signals[BUTTON_CLICKED]);
}

static void
label_button_press_event_cb (GtkWidget *widget,
                 GdkEventButton *event,
                 gpointer data)
{
    ETitleBar *title_bar;

    title_bar = E_TITLE_BAR (data);

    gtk_signal_emit (GTK_OBJECT (title_bar), signals[LABEL_BUTTON_PRESS_EVENT], event);
}


/* GtkObject methods.  */

static void
destroy (GtkObject *object)
{
    ETitleBar *title_bar;
    ETitleBarPrivate *priv;

    title_bar = E_TITLE_BAR (object);
    priv = title_bar->priv;

    g_free (priv);

    (* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}


static void
class_init (ETitleBarClass *klass)
{
    GtkObjectClass *object_class;

    object_class = (GtkObjectClass*) klass;
    object_class->destroy = destroy;

    parent_class = gtk_type_class (gtk_frame_get_type ());

    signals[LABEL_BUTTON_PRESS_EVENT] = 
        gtk_signal_new ("label_button_press_event",
                GTK_RUN_FIRST,
                object_class->type,
                GTK_SIGNAL_OFFSET (ETitleBarClass, label_button_press_event),
                gtk_marshal_NONE__POINTER,
                GTK_TYPE_NONE, 1,
                GTK_TYPE_GDK_EVENT);

    signals[BUTTON_CLICKED] = 
        gtk_signal_new ("button_clicked",
                GTK_RUN_FIRST,
                object_class->type,
                GTK_SIGNAL_OFFSET (ETitleBarClass, button_clicked),
                gtk_marshal_NONE__NONE,
                GTK_TYPE_NONE, 0);

    gtk_object_class_add_signals (object_class, signals, LAST_SIGNAL);
}

static void
init (ETitleBar *title_bar)
{
    ETitleBarPrivate *priv;

    priv = g_new (ETitleBarPrivate, 1);

    priv->button_mode      = E_TITLE_BAR_BUTTON_MODE_CLOSE;
    priv->label            = NULL;
    priv->button           = NULL;
    priv->close_gtk_pixmap = NULL;
    priv->pin_gtk_pixmap   = NULL;

    title_bar->priv = priv;
}


void
e_title_bar_construct (ETitleBar *title_bar,
               const char *title)
{
    ETitleBarPrivate *priv;
    GtkWidget *hbox;

    g_return_if_fail (title_bar != NULL);
    g_return_if_fail (E_IS_TITLE_BAR (title_bar));

    priv = title_bar->priv;

    priv->label = e_clipped_label_new (title);
    gtk_misc_set_alignment (GTK_MISC (priv->label), 0.0, 0.5);
    gtk_widget_show (priv->label);

    priv->button = gtk_button_new ();
    GTK_WIDGET_UNSET_FLAGS (priv->button, GTK_CAN_FOCUS);
    gtk_container_set_border_width (GTK_CONTAINER (priv->button), 1);
    gtk_button_set_relief (GTK_BUTTON (priv->button), GTK_RELIEF_NONE);
    gtk_widget_show (priv->button);

    hbox = gtk_hbox_new (FALSE, 0);
    gtk_box_pack_start (GTK_BOX (hbox), priv->label, TRUE, TRUE, 2);
    gtk_box_pack_start (GTK_BOX (hbox), priv->button, FALSE, TRUE, 1);
    gtk_widget_show (hbox);

    gtk_container_add (GTK_CONTAINER (title_bar), hbox);

    gtk_signal_connect (GTK_OBJECT (priv->button), "realize",
                GTK_SIGNAL_FUNC (button_realize_cb), title_bar);
    gtk_signal_connect (GTK_OBJECT (priv->button), "clicked",
                GTK_SIGNAL_FUNC (button_clicked_cb), title_bar);
    gtk_signal_connect (GTK_OBJECT (priv->label), "button_press_event",
                GTK_SIGNAL_FUNC (label_button_press_event_cb), title_bar);
}

GtkWidget *
e_title_bar_new (const char *title)
{
    ETitleBar *title_bar;

    title_bar = gtk_type_new (e_title_bar_get_type ());

    e_title_bar_construct (title_bar, title);

    return GTK_WIDGET (title_bar);
}


void
e_title_bar_set_title (ETitleBar *title_bar,
               const char *title)
{
    g_return_if_fail (title_bar != NULL);
    g_return_if_fail (E_IS_TITLE_BAR (title_bar));

    e_clipped_label_set_text (E_CLIPPED_LABEL (title_bar->priv->label), title);
}

void
e_title_bar_show_button (ETitleBar *title_bar,
             gboolean show)
{
    ETitleBarPrivate *priv;

    g_return_if_fail (title_bar != NULL);
    g_return_if_fail (E_IS_TITLE_BAR (title_bar));

    priv = title_bar->priv;

    if (show)
        gtk_widget_show (priv->button);
    else
        gtk_widget_hide (priv->button);
}

void
e_title_bar_set_button_mode (ETitleBar *title_bar,
                 ETitleBarButtonMode button_mode)
{
    ETitleBarPrivate *priv;

    g_return_if_fail (title_bar != NULL);
    g_return_if_fail (E_IS_TITLE_BAR (title_bar));
    g_return_if_fail (button_mode == E_TITLE_BAR_BUTTON_MODE_CLOSE
              || button_mode == E_TITLE_BAR_BUTTON_MODE_PIN);

    priv = title_bar->priv;

    if (priv->button_mode == button_mode)
        return;

    priv->button_mode = button_mode;
    show_and_hide_pixmaps_according_to_mode (title_bar);
}

ETitleBarButtonMode
e_title_bar_get_button_mode (ETitleBar *title_bar)
{
    g_return_val_if_fail (title_bar != NULL, E_TITLE_BAR_BUTTON_MODE_CLOSE);
    g_return_val_if_fail (E_IS_TITLE_BAR (title_bar), E_TITLE_BAR_BUTTON_MODE_CLOSE);

    return title_bar->priv->button_mode;
}


E_MAKE_TYPE (e_title_bar, "ETitleBar", ETitleBar, class_init, init, PARENT_TYPE)