ground/gcs/src/plugins/coreplugin/uavgadgetmanager/splitterorview.h

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       splitterorview.h
   5  * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
   6  *             Parts by Nokia Corporation (qt-info@nokia.com) Copyright (C) 2009.
   7  * @addtogroup GCSPlugins GCS Plugins
   8  * @{
   9  * @addtogroup CorePlugin Core Plugin
  10  * @{
  11  * @brief The Core GCS plugin
  12  *****************************************************************************/
  13 /*
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 3 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful, but
  20  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  21  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
  22  * for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License along
  25  * with this program; if not, write to the Free Software Foundation, Inc.,
  26  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
  27  */
  28
  29 #ifndef SPLITTERORVIEW_H
  30 #define SPLITTERORVIEW_H
  31
  32 #include "uavgadgetmanager.h"
  33 #include "uavgadgetview.h"
  34
  35 #include <QWidget>
  36 #include <QMouseEvent>
  37 #include <QSplitter>
  38
  39 class QSettings;
  40
  41 namespace Core {
  42 namespace Internal {
  43 class SplitterOrView : public QWidget {
  44     Q_OBJECT
  45 public:
  46     SplitterOrView(UAVGadgetManager *uavGadgetManager, Core::IUAVGadget *uavGadget = 0);
  47     ~SplitterOrView();
  48
  49     void split(Qt::Orientation orientation);
  50
  51     void unsplit(IUAVGadget *gadget);
  52
  53     // un-split all and keep only the specified gadget
  54     void unsplitAll(IUAVGadget *gadget);
  55
  56     inline bool isView() const
  57     {
  58         return m_view != 0;
  59     }
  60
  61     inline bool isSplitter() const
  62     {
  63         return m_splitter != 0;
  64     }
  65     inline Core::IUAVGadget *gadget() const
  66     {
  67         return m_view ? m_view->gadget() : 0;
  68     }
  69     inline bool hasGadget(Core::IUAVGadget *uavGadget) const
  70     {
  71         return m_view && m_view->hasGadget(uavGadget);
  72     }
  73     inline bool hasGadget() const
  74     {
  75         return m_view && (m_view->gadget() != 0);
  76     }
  77     inline UAVGadgetView *view() const
  78     {
  79         return m_view;
  80     }
  81     inline QSplitter *splitter() const
  82     {
  83         return m_splitter;
  84     }
  85     QList<Core::IUAVGadget *> gadgets();
  86     QSplitter *takeSplitter();
  87     UAVGadgetView *takeView();
  88
  89     void saveState(QSettings &) const;
  90     void restoreState(QSettings &);
  91
  92     SplitterOrView *findView(Core::IUAVGadget *uavGadget);
  93     SplitterOrView *findView(UAVGadgetView *view);
  94     SplitterOrView *findFirstView();
  95     SplitterOrView *findSplitter(Core::IUAVGadget *uavGadget);
  96     SplitterOrView *findSplitter(SplitterOrView *child);
  97
  98     SplitterOrView *findNextView(SplitterOrView *view);
  99
 100     QSize sizeHint() const
 101     {
 102         return minimumSizeHint();
 103     }
 104     QSize minimumSizeHint() const;
 105
 106 protected:
 107     void mousePressEvent(QMouseEvent *e);
 108
 109 private slots:
 110     // Called when the user moves the splitter, and updates our m_sizes.
 111     void onSplitterMoved(int pos, int index);
 112
 113 private:
 114     // private "copy" constructor
 115     SplitterOrView(SplitterOrView &splitterOrView, QWidget *parent);
 116
 117     static void unsplitAll_helper(UAVGadgetManager *uavGadgetManager, QSplitter *splitter);
 118     SplitterOrView *findNextView_helper(SplitterOrView *view, bool *found);
 119
 120     // The gadget manager that controls us.
 121     QPointer<UAVGadgetManager> m_uavGadgetManager;
 122
 123     // Our view, if we are a view (showing 1 gadget) and not a splitter.
 124     QPointer<UAVGadgetView> m_view;
 125
 126     // Our splitter, if we are a splitter.
 127     QPointer<QSplitter> m_splitter;
 128
 129     // The splitter sizes. We keep our own copy of these, since after loading they can't realiably be retrieved.
 130     QList<int> m_sizes;
 131 };
 132 }
 133 }
 134 #endif // SPLITTERORVIEW_H