File indexing completed on 2024-04-28 05:47:26

 /*****************************************************************************
  *   Copyright 2010 Craig Drummond <craig.p.drummond@gmail.com>              *
  *   Copyright 2013 - 2015 Yichao Yu <yyc1992@gmail.com>                     *
  *                                                                           *
  *   This program is free software; you can redistribute it and/or modify    *
  *   it under the terms of the GNU Lesser General Public License as          *
  *   published by the Free Software Foundation; either version 2.1 of the    *
  *   License, or (at your option) version 3, or any later version accepted   *
  *   by the membership of KDE e.V. (or its successor approved by the         *
  *   membership of KDE e.V.), which shall act as a proxy defined in          *
  *   Section 6 of version 3 of the license.                                  *
  *                                                                           *
  *   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       *
  *   Lesser General Public License for more details.                         *
  *                                                                           *
  *   You should have received a copy of the GNU Lesser General Public        *
  *   License along with this library. If not,                                *
  *   see <http://www.gnu.org/licenses/>.                                     *
  *****************************************************************************/
 
 #ifndef __WINDOW_MANAGER_H__
 #define __WINDOW_MANAGER_H__
 
 // Copied from oxygenwindowmanager.h svnversion: 1137195
 
 //////////////////////////////////////////////////////////////////////////////
 // windowmanager.h
 // pass some window mouse press/release/move event actions to window manager
 // -------------------
 //
 // Copyright (c) 2010 Hugo Pereira Da Costa <hugo@oxygen-icons.org>
 //
 // Largely inspired from BeSpin style
 // Copyright (C) 2007 Thomas Luebking <thomas.luebking@web.de>
 //
 // Permission is hereby granted, free of charge, to any person obtaining a copy
 // of this software and associated documentation files (the "Software"), to
 // deal in the Software without restriction, including without limitation the
 // rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 // sell copies of the Software, and to permit persons to whom the Software is
 // furnished to do so, subject to the following conditions:
 //
 // The above copyright notice and this permission notice shall be included in
 // all copies or substantial portions of the Software.
 //
 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 // FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 // IN THE SOFTWARE.
 //////////////////////////////////////////////////////////////////////////////
 
 #include <QEvent>
 #include <QBasicTimer>
 #include <QSet>
 #include <QString>
 #include <QPointer>
 #include <QWidget>
 
 namespace QtCurve {
 class WindowManager: public QObject {
     Q_OBJECT
 public:
     explicit WindowManager(QObject*);
 
     //! initialize
     /*! read relevant options from OxygenStyleConfigData */
     void initialize( int windowDrag, const QStringList &whiteList=QStringList(),
                      const QStringList &blackList=QStringList());
 
     //! register widget
     void registerWidget(QWidget*);
 
     //! unregister widget
     void unregisterWidget(QWidget*);
 
     //! event filter [reimplemented]
     bool eventFilter(QObject*, QEvent*) override;
 
 protected:
     //! timer event,
     /*! used to start drag if button is pressed for a long enough time */
     void timerEvent(QTimerEvent*) override;
     //! mouse press event
     bool mousePressEvent( QObject*, QEvent* );
     //! mouse move event
     bool mouseMoveEvent( QObject*, QEvent* );
     //! mouse release event
     bool mouseReleaseEvent( QObject*, QEvent* );
     //!@name configuration
     //@{
     //! enable state
     bool
     enabled() const
     {
         return _enabled;
     }
 
     //! enable state
     void
     setEnabled(bool value)
     {
         _enabled = value;
     }
 
     //! returns true if window manager is used for moving
     bool
     useWMMoveResize() const
     {
         return _useWMMoveResize;
     }
 
     //! drag mode
     int dragMode() const
     {
         return _dragMode;
     }
 
     //! drag mode
     void setDragMode(int value)
     {
         _dragMode = value;
     }
 
     //! drag distance (pixels)
     void setDragDistance(int value)
     {
         _dragDistance = value;
     }
 
     //! drag delay (msec)
     void setDragDelay(int value)
     {
         _dragDelay = value;
     }
 
     //! set list of whiteListed widgets
     /*!
       white list is read from options and is used to adjust
       per-app window dragging issues
     */
     void initializeWhiteList(const QStringList &list);
 
     //! set list of blackListed widgets
     /*!
       black list is read from options and is used to adjust
       per-app window dragging issues
     */
     void initializeBlackList(const QStringList &list);
 
     //@}
 
     //! returns true if widget is dragable
     bool isDragable(QWidget*);
 
     //! returns true if widget is dragable
     bool isBlackListed(QWidget*);
 
     //! returns true if widget is dragable
     bool isWhiteListed(QWidget*) const;
 
     //! returns true if drag can be started from current widget
     bool canDrag(QWidget*);
 
     //! returns true if drag can be started from current widget and position
     /*! child at given position is passed as second argument */
     bool canDrag(QWidget*, QWidget*, const QPoint&);
 
     //! reset drag
     void resetDrag();
 
     //! start drag
     void startDrag(QWidget*, const QPoint&);
 
     //! utility function
     bool isDockWidgetTitle(const QWidget*) const;
 
     //!@name lock
     //@{
 
     void
     setLocked(bool value)
     {
         _locked = value;
     }
 
     //! lock
     bool
     isLocked() const
     {
         return _locked;
     }
 
     //@}
 
 private:
     //! enability
     bool _enabled;
 
     //! use WM moveResize
     bool _useWMMoveResize;
 
     //! drag mode
     int _dragMode;
 
     //! drag distance
     /*! this is copied from kwin::geometry */
     int _dragDistance;
 
     //! drag delay
     /*! this is copied from kwin::geometry */
     int _dragDelay;
 
     //! wrapper for exception id
     class ExceptionId: public QPair<QString, QString> {
     public:
         //! constructor
         ExceptionId(const QString &value)
         {
             const QStringList args(value.split("@"));
             if (args.isEmpty())
                 return;
             second = args[0].trimmed();
             if (args.size() > 1) {
                 first = args[1].trimmed();
             }
         }
 
         const QString&
         appName() const
         {
             return first;
         }
 
         const QString&
         className() const
         {
             return second;
         }
     };
 
     //! exception set
     typedef QSet<ExceptionId> ExceptionSet;
 
     //! list of white listed special widgets
     /*!
       it is read from options and is used to adjust
       per-app window dragging issues
     */
     ExceptionSet _whiteList;
 
     //! list of black listed special widgets
     /*!
       it is read from options and is used to adjust
       per-app window dragging issues
     */
     ExceptionSet _blackList;
 
     //! drag point
     QPoint _dragPoint;
     QPoint _globalDragPoint;
 
     //! drag timer
     QBasicTimer _dragTimer;
 
     //! target being dragged
     /*! QPointer is used in case the target gets deleted while drag
       is in progress */
     QPointer<QWidget> _target;
 
     //! true if drag is about to start
     bool _dragAboutToStart;
 
     //! true if drag is in progress
     bool _dragInProgress;
 
     //! true if drag is locked
     bool _locked;
 
     //! cursor override
     /*! used to keep track of application cursor being overridden when dragging in non-WM mode */
     bool _cursorOverride;
 
     //! provide application-wise event filter
     /*!
       it us used to unlock dragging and make sure event look is properly restored
       after a drag has occurred
     */
     class AppEventFilter: public QObject {
     public:
         //! constructor
         AppEventFilter(WindowManager* parent):
             QObject(parent),
             _parent(parent)
         {}
 
         //! event filter
         bool eventFilter( QObject*, QEvent* ) override;
 
     protected:
         //! application-wise event.
         /*! needed to catch end of XMoveResize events */
         bool appMouseEvent( QObject*, QEvent* );
 
     private:
         //! parent
         WindowManager* _parent;
     };
 
     //! application event filter
     AppEventFilter* _appEventFilter;
 
     //! allow access of all private members to the app event filter
     friend class AppEventFilter;
 };
 
 }
 
 #endif