ground/openpilotgcs/src/plugins/coreplugin/minisplitter.cpp

   1 /**
   2  ******************************************************************************
   3  *
   4  * @file       minisplitter.cpp
   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 #include "minisplitter.h"
  30
  31 #include <utils/stylehelper.h>
  32
  33 #include <QPaintEvent>
  34 #include <QPainter>
  35 #include <QSplitterHandle>
  36
  37 namespace Core {
  38 namespace Internal {
  39 class MiniSplitterHandle : public QSplitterHandle {
  40 public:
  41     MiniSplitterHandle(Qt::Orientation orientation, QSplitter *parent)
  42         : QSplitterHandle(orientation, parent)
  43     {
  44         setMask(QRegion(contentsRect()));
  45         setAttribute(Qt::WA_MouseNoMask, true);
  46     }
  47 protected:
  48     void resizeEvent(QResizeEvent *event);
  49     void paintEvent(QPaintEvent *event);
  50 };
  51 } // namespace Internal
  52 } // namespace Core
  53
  54 using namespace Core;
  55 using namespace Core::Internal;
  56
  57 void MiniSplitterHandle::resizeEvent(QResizeEvent *event)
  58 {
  59     // Warning: We specifically replace the QSplitterHandle::resizeEvent,
  60     // since there's no way of doing this while still calling it.
  61     // That's because it has pretty much identical code (in 4.7.0) which
  62     // undoes what we do here. And they didn't make that code configurable :)
  63     // This means that with Qt upgrades it's worthwhile to see if anything changed
  64     // in QSplitterHandle::resizeEvent, to see if there's anything important we miss.
  65
  66     if (orientation() == Qt::Horizontal) {
  67         setContentsMargins(6, 0, 6, 0);
  68     } else {
  69         setContentsMargins(0, 6, 0, 6);
  70     }
  71     setMask(QRegion(contentsRect()));
  72
  73     QWidget::resizeEvent(event);
  74 }
  75
  76 void MiniSplitterHandle::paintEvent(QPaintEvent *event)
  77 {
  78     QPainter painter(this);
  79
  80     painter.fillRect(event->rect(), Utils::StyleHelper::borderColor());
  81 }
  82
  83 QSplitterHandle *MiniSplitter::createHandle()
  84 {
  85     return new MiniSplitterHandle(orientation(), this);
  86 }
  87
  88 MiniSplitter::MiniSplitter(QWidget *parent)
  89     : QSplitter(parent)
  90 {
  91     setHandleWidth(1);
  92     setChildrenCollapsible(false);
  93     setProperty("minisplitter", true);
  94 }
  95
  96 MiniSplitter::MiniSplitter(Qt::Orientation orientation)
  97     : QSplitter(orientation)
  98 {
  99     setHandleWidth(1);
 100     setChildrenCollapsible(false);
 101     setProperty("minisplitter", true);
 102 }