/* -*- C++ -*-
 *
 *  This file is part of RawTherapee.
 *
 *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
 *
 *  RawTherapee 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 3 of the License, or
 *  (at your option) any later version.
 *
 *  RawTherapee 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 RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
 */
#ifndef __TOOLBAR_H__
#define __TOOLBAR_H__

#include "lockablecolorpicker.h"
#include "rtimage.h"
#include "toolenum.h"
#include <gtkmm.h>

class ToolBarListener {
public:
    virtual ~ToolBarListener() = default;
    /// Callback when a tool is selected
    virtual void toolSelected(ToolMode tool) = 0;
    /// Callback when a tool is deselected. WARNING: Not yet called for most
    /// tools.
    virtual void toolDeselected(ToolMode tool) = 0;

    /// Callback when the Edit mode is stopped
    virtual void editModeSwitchedOff() = 0;
};

class ToolBar: public Gtk::HBox {
private:
    std::unique_ptr<RTImage> handimg;
    std::unique_ptr<RTImage> editinghandimg;
    std::unique_ptr<RTImage> showcolpickersimg;
    std::unique_ptr<RTImage> hidecolpickersimg;
    bool showColPickers;

    void hand_pressed();
    void wb_pressed();
    void colPicker_pressed(GdkEventButton *event);
    void crop_pressed();
    void stra_pressed();
    void persp_pressed();
    bool showColorPickers(bool showCP);
    void switchColorPickersVisibility();

protected:
    Gtk::ToggleButton *handTool;
    Gtk::ToggleButton *wbTool;
    Gtk::ToggleButton *colPickerTool;
    Gtk::ToggleButton *cropTool;
    Gtk::ToggleButton *straTool;
    Gtk::ToggleButton *perspTool;
    ToolBarListener *listener;
    LockablePickerToolListener *pickerListener;
    ToolMode current;
    bool allowNoTool;
    bool editingMode; // true if the cursor is being used to remotely edit
                      // tool's values
    sigc::connection handConn;
    sigc::connection wbConn;
    sigc::connection cpConn;
    sigc::connection cropConn;
    sigc::connection straConn;
    sigc::connection perspConn;

public:
    ToolBar();

    void setTool(ToolMode tool);
    ToolMode getTool() { return current == TMPerspective ? TMHand : current; }

    bool showColorPickers() { return showColPickers; }

    void setToolBarListener(ToolBarListener *tpl) { listener = tpl; }

    void setLockablePickerToolListener(LockablePickerToolListener *lptl)
    {
        pickerListener = lptl;
    }

    void startEditMode();
    void stopEditMode();

    bool handleShortcutKey(GdkEventKey *event);
};

#endif
