/***************************************************************************
 *   Copyright 2006-2007 Alexander Dymo  <adymo@kdevelop.org>       *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU Library 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 Library General Public     *
 *   License along with this program; if not, write to the                 *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.         *
 ***************************************************************************/
#ifndef KDEVPLATFORM_SUBLIMEMAINWINDOW_P_H
#define KDEVPLATFORM_SUBLIMEMAINWINDOW_P_H

#include <QMap>
#include <QObject>
#include <QSet>
#include <QTabBar>
#include <QHBoxLayout>
#include <QLabel>

#include "area.h"
#include "sublimedefs.h"

#include "mainwindow.h"
#include <qmenubar.h>
#include <qstylepainter.h>
#include <qstyleoption.h>
#include <qevent.h>
#include <QPushButton>
#include <KColorScheme>

class QMenu;
class QAction;
class QSplitter;
class QDockWidget;
class QComboBox;

namespace Sublime {

class View;
class Container;
class Controller;
class AreaIndex;
class IdealMainWidget;
class IdealController;

class AreaTabButton : public QWidget {
    public:
    AreaTabButton(QString text, QIcon icon, uint iconSize, QWidget* parent, bool isCurrent, QWidget* _customButtonWidget) ;
    
    QLabel* iconLabel;
    QLabel* textLabel;
    QWidget* customButtonWidget;

    void setIsCurrent ( bool arg1 );

    private:
    bool m_isCurrent;
};

class MainWindowPrivate: public QObject {
    Q_OBJECT
public:
    MainWindowPrivate(MainWindow *w, Controller* controller);
    ~MainWindowPrivate();

    /**Use this to create tool views for an area.*/
    class IdealToolViewCreator {
    public:
        IdealToolViewCreator(MainWindowPrivate *_d): d(_d) {}
        Area::WalkerMode operator() (View *view, Sublime::Position position);
    private:
        MainWindowPrivate *d;
    };

    /**Use this to create views for an area.*/
    class ViewCreator {
    public:
        ViewCreator(MainWindowPrivate *_d, QList<View*> _topViews = QList<View*>()): d(_d), topViews(_topViews.toSet()) {}
        Area::WalkerMode operator() (AreaIndex *index);
    private:
        MainWindowPrivate *d;
        QSet<View*> topViews;
    };

    /**Reconstructs the mainwindow according to the current area.*/
    void reconstruct();
    /**Reconstructs the views according to the current area index.*/
    void reconstructViews(QList<View*> topViews = QList<View*>());    
    /**Clears the area leaving mainwindow empty.*/
    void clearArea();
    
    /** Sets a @p w widget that will be shown when there are no documents on the area */
    void setBackgroundCentralWidget(QWidget* w);

    void activateFirstVisibleView();

    Controller *controller;
    Area *area;
    QList<View*> docks;
    QMap<View*, Container*> viewContainers;
    QMap<QWidget*, View*> widgetToView;

    View *activeView;
    View *activeToolView;

    QWidget *centralWidget;
    QWidget* bgCentralWidget;
    QSplitter* splitterCentralWidget;

    IdealController *idealController;
    int ignoreDockShown;
    bool autoAreaSettingsSave;                       

public slots:
    void toggleDocksShown();

    void viewAdded(Sublime::AreaIndex *index, Sublime::View *view);
    void viewRemovedInternal(Sublime::AreaIndex *index, Sublime::View *view);
    void raiseToolView(Sublime::View* view);
    void aboutToRemoveView(Sublime::AreaIndex *index, Sublime::View *view);
    void toolViewAdded(Sublime::View *toolView, Sublime::Position position);
    void aboutToRemoveToolView(Sublime::View *toolView, Sublime::Position position);
    void toolViewMoved(Sublime::View *toolView, Sublime::Position position);

    void setTabBarLeftCornerWidget(QWidget* widget);

private slots:
    void switchToArea(QAction *action);
    void updateAreaSwitcher(Sublime::Area *area);
    void slotDockShown(Sublime::View*, Sublime::Position, bool);
    void widgetResized(Qt::DockWidgetArea dockArea, int thickness);
    void widgetCloseRequest(QWidget* widget);

    void showLeftDock(bool b);
    void showRightDock(bool b);
    void showBottomDock(bool b);
    void focusEditor();
    void selectNextDock();
    void selectPreviousDock();

private:
    void setBackgroundVisible(bool v);
    Qt::DockWidgetArea positionToDockArea(Position position);
    void cleanCentralWidget();

    MainWindow *m_mainWindow;
    // uses QPointer to make already-deleted splitters detectable
    QMap<AreaIndex*, QPointer<QSplitter> > m_indexSplitters;
    friend class AreaSelectionAction;

    QMap<Area*, QAction*> m_areaActions;
    QMap<QAction*, Area*> m_actionAreas;
    QWeakPointer<QWidget> m_leftTabbarCornerWidget;
};

}

#endif