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 /* This file is part of the KDE libraries
    Copyright (C) 2005 Christoph Cullmann <cullmann@kde.org>
    Copyright (C) 2002, 2003 Joseph Wenninger <jowenn@kde.org>
 
    This library 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 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
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public License
    along with this library; see the file COPYING.LIB.  If not, write to
    the Free Software Foundation, Inc., 51 Franklin Steet, Fifth Floor,
    Boston, MA 02110-1301, USA.
 */
 
 #ifndef __KATE_MDI_H__
 #define __KATE_MDI_H__
 
 #include <KParts/MainWindow>
 
 #include <KMultiTabBar>
 
 // #include <q3dict.h>
 // #include <q3intdict.h>
 // #include <q3vbox.h>
 #include <QMap>
 #include <QSplitter>
 
 class QAction;
 
 namespace KateMDI
 {
 class MainWindow;
 class ToolView;
 
 /** This class is needed because QSplitter cant return an index for a widget. */
 class Splitter : public QSplitter
 {
     Q_OBJECT
 
 public:
     Splitter(Qt::Orientation o, QWidget *parent = nullptr);
     ~Splitter() override;
 
     /** Since there is supposed to be only 2 childs of a katesplitter,
      * any child other than the last is the first.
      * This method uses QSplitter::idAfter(widget) which
      * returns 0 if there is no widget after this one.
      * This results in an error if widget is not a child
      * in this splitter */
     // bool isLastChild(QWidget* w) const;
 
     // int idAfter ( QWidget * w ) const;
 };
 
 class GUIClient : public QObject, public KXMLGUIClient
 {
     Q_OBJECT
 
 public:
     GUIClient(MainWindow *mw);
     ~GUIClient() override;
 
     void registerToolView(ToolView *tv);
 
 private slots:
     void clientAdded(KXMLGUIClient *client);
     void updateActions();
 
 private:
     MainWindow *m_mw;
 };
 
 class ToolView : public QWidget
 {
     Q_OBJECT
 
     friend class Sidebar;
     friend class MainWindow;
     friend class GUIClient;
     friend class ToggleToolViewAction;
 
 protected:
     /**
      * ToolView
      * Objects of this clas represent a toolview in the mainwindow
      * you should only add one widget as child to this toolview, it will
      * be automatically set to be the focus proxy of the toolview
      * @param mainwin main window for this toolview
      * @param sidebar sidebar of this toolview
      * @param parent parent widget, e.g. the splitter of one of the sidebars
      */
     ToolView(MainWindow *mainwin, class Sidebar *sidebar, QWidget *parent);
 
 public:
     /**
      * destuct me, this is allowed for all, will care itself that the toolview is removed
      * from the mainwindow and sidebar
      */
     ~ToolView() override;
 
 signals:
     /**
      * toolview hidden or shown
      * @param visible is this toolview made visible?
      */
     void visibleChanged(bool visible);
 
     /**
      * some internal methodes needed by the main window and the sidebars
      */
 protected:
     MainWindow *mainWindow()
     {
         return m_mainWin;
     }
 
     Sidebar *sidebar()
     {
         return m_sidebar;
     }
 
     void setVisibleToolView(bool vis);
 
 public:
     bool visible() const;
 
 protected:
     void childEvent(QChildEvent *ev) override;
 
 private:
     MainWindow *m_mainWin;
     Sidebar *m_sidebar;
 
     /**
      * unique id
      */
     QString id;
 
     /**
      * is visible in sidebar
      */
     bool m_visible;
 
     /**
      * is this view persistent?
      */
     bool persistent;
 
     QIcon icon;
     QString text;
 };
 
 class Sidebar : public KMultiTabBar
 {
     Q_OBJECT
 
 public:
     Sidebar(KMultiTabBar::KMultiTabBarPosition pos, MainWindow *mainwin, QWidget *parent);
     ~Sidebar() override;
 
     void setSplitter(Splitter *sp);
 
     // HACK use these functions intead of their respective functions in
     // KMultiTabBar so that we know what they were set to.
     void setSidebarPosition(KMultiTabBarPosition pos);
     KMultiTabBar::KMultiTabBarPosition sidebarPosition() const
     {
         return m_pos;
     }
     void setSidebarStyle(KMultiTabBarStyle style);
     KMultiTabBar::KMultiTabBarStyle sidebarTabStyle() const
     {
         return m_sidebarTabStyle;
     }
 
 public:
     ToolView *addWidget(const QIcon &icon, const QString &text, ToolView *widget);
     bool removeWidget(ToolView *widget);
 
     bool showWidget(ToolView *widget);
     bool hideWidget(ToolView *widget);
 
     void setLastSize(int s)
     {
         m_lastSize = s;
     }
     int lastSize() const
     {
         return m_lastSize;
     }
     void updateLastSize();
 
     bool splitterVisible() const
     {
         return m_ownSplit->isVisible();
     }
 
     void restoreSession();
     void updateMinimumSize();
 
     /**
      * restore the current session config from given object, use current group
      * @param config config object to use
      */
     void restoreSession(KConfigGroup *config);
 
     /**
      * save the current session config to given object, use current group
      * @param config config object to use
      */
     void saveSession(KConfigGroup *config);
 
 private slots:
     void tabClicked(int);
 
 protected:
     bool eventFilter(QObject *obj, QEvent *ev) override;
 
 private slots:
     void buttonPopupActivate(QAction *action);
 
 private:
     MainWindow *m_mainWin;
 
     KMultiTabBar::KMultiTabBarStyle m_sidebarTabStyle;
     KMultiTabBar::KMultiTabBarPosition m_pos;
     Splitter *m_splitter;
     KMultiTabBar *m_tabBar;
     Splitter *m_ownSplit;
 
     // Q3IntDict<ToolView> m_idToWidget;
     QMap<int, ToolView *> m_idToWidget;
     QMap<ToolView *, int> m_widgetToId;
 
     /**
      * list of all toolviews around in this sidebar
      */
     QList<ToolView *> m_toolviews;
 
     int m_lastSize;
 
     int m_popupButton;
 };
 
 class MainWindow : public KParts::MainWindow
 {
     Q_OBJECT
 
     friend class ToolView;
 
     //
     // Constructor area
     //
 public:
     /**
      * Constructor
      */
     MainWindow(QWidget *parentWidget = nullptr);
 
     /**
      * Destructor
      */
     ~MainWindow() override;
 
     //
     // public interfaces
     //
 public:
     /**
      * central widget ;)
      * use this as parent for your content
      * this widget will get focus if a toolview is hidden
      * @return central widget
      */
     QWidget *centralWidget() const;
 
     /**
      * add a given widget to the given sidebar if possible, name is very important
      * @param identifier unique identifier for this toolview
      * @param pos position for the toolview, if we are in session restore, this is only a preference
      * @param icon icon to use for the toolview
      * @param text text to use in addition to icon
      * @return created toolview on success or 0
      */
     ToolView *createToolView(const QString &identifier, KMultiTabBar::KMultiTabBarPosition pos, const QIcon &icon, const QString &text);
 
     /**
      * give you handle to toolview for the given name, 0 if no toolview around
      * @param identifier toolview name
      * @return toolview if existing, else 0
      */
     ToolView *toolView(const QString &identifier) const;
 
     /**
      * set the toolview's tabbar style.
      * @param style the tabbar style.
      */
     void setToolViewStyle(KMultiTabBar::KMultiTabBarStyle style);
 
     /**
      * get the toolview's tabbar style. Call this before @p startRestore(),
      * otherwise you overwrite the usersettings.
      * @return toolview's tabbar style
      */
     KMultiTabBar::KMultiTabBarStyle toolViewStyle() const;
 
 protected:
     /**
      * called by toolview destructor
      * @param widget toolview which is destroyed
      */
     void toolViewDeleted(ToolView *widget);
 
     /**
      * modifiers for existing toolviews
      */
 public:
     /**
      * move a toolview around
      * @param widget toolview to move
      * @param pos position to move too, during session restore, only preference
      * @return success
      */
     bool moveToolView(ToolView *widget, KMultiTabBar::KMultiTabBarPosition pos);
 
     /**
      * show given toolview, discarded while session restore
      * @param widget toolview to show
      * @return success
      */
     bool showToolView(ToolView *widget);
 
     /**
      * hide given toolview, discarded while session restore
      * @param widget toolview to hide
      * @return success
      */
     bool hideToolView(ToolView *widget);
 
     /**
      * session saving and restore stuff
      */
 public:
     /**
      * start the restore
      * @param config config object to use
      * @param group config group to use
      */
     void startRestore(KConfig *config, const QString &group);
 
     /**
      * finish the restore
      */
     void finishRestore();
 
     /**
      * save the current session config to given object and group
      * @param config config object to use
      */
     void saveSession(KConfigGroup *config);
 
     void updateSidebarMinimumSizes();
 
     /**
      * internal data ;)
      */
 private:
     /**
      * map identifiers to widgets
      */
     // Q3Dict<ToolView> m_idToWidget;
     QMap<QString, ToolView *> m_idToWidget;
 
     /**
      * list of all toolviews around
      */
     QList<ToolView *> m_toolviews;
 
     /**
      * widget, which is the central part of the
      * main window ;)
      */
     QWidget *m_centralWidget;
 
     /**
      * horizontal splitter
      */
     Splitter *m_hSplitter;
 
     /**
      * vertical splitter
      */
     Splitter *m_vSplitter;
 
     /**
      * sidebars for the four sides
      */
     Sidebar *m_sidebars[4];
 
     /**
      * config object for session restore, only valid between
      * start and finish restore calls
      */
     KConfig *m_restoreConfig;
 
     /**
      * restore group
      */
     QString m_restoreGroup;
 
     /**
      * out guiclient
      */
     GUIClient *m_guiClient;
 };
 
 }
 
 #endif