src/dolphindockwidget.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Peter Penz <peter.penz19@gmail.com>             *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA            *
  18  ***************************************************************************/
  19
  20 #include "dolphindockwidget.h"
  21
  22 #include <QStyle>
  23
  24 namespace {
  25     // Disable the 'Floatable' feature, i.e., the possibility to drag the
  26     // dock widget out of the main window. This works around problems like
  27     // https://bugs.kde.org/show_bug.cgi?id=288629
  28     // https://bugs.kde.org/show_bug.cgi?id=322299
  29     const QDockWidget::DockWidgetFeatures DefaultDockWidgetFeatures = QDockWidget::DockWidgetMovable | QDockWidget::DockWidgetClosable;
  30 }
  31
  32  // Empty titlebar for the dock widgets when "Lock Layout" has been activated.
  33 class DolphinDockTitleBar : public QWidget
  34 {
  35     Q_OBJECT
  36
  37 public:
  38     explicit DolphinDockTitleBar(QWidget* parent = nullptr) : QWidget(parent) {}
  39     ~DolphinDockTitleBar() override {}
  40
  41     QSize minimumSizeHint() const override
  42     {
  43         const int border = style()->pixelMetric(QStyle::PM_DockWidgetTitleBarButtonMargin);
  44         return QSize(border, border);
  45     }
  46
  47     QSize sizeHint() const override
  48     {
  49         return minimumSizeHint();
  50     }
  51 };
  52
  53 DolphinDockWidget::DolphinDockWidget(const QString& title, QWidget* parent, Qt::WindowFlags flags) :
  54     QDockWidget(title, parent, flags),
  55     m_locked(false),
  56     m_dockTitleBar(nullptr)
  57 {
  58     setFeatures(DefaultDockWidgetFeatures);
  59 }
  60
  61 DolphinDockWidget::~DolphinDockWidget()
  62 {
  63 }
  64
  65 void DolphinDockWidget::setLocked(bool lock)
  66 {
  67     if (lock != m_locked) {
  68         m_locked = lock;
  69
  70         if (lock) {
  71             if (!m_dockTitleBar) {
  72                 m_dockTitleBar = new DolphinDockTitleBar(this);
  73             }
  74             setTitleBarWidget(m_dockTitleBar);
  75             setFeatures(QDockWidget::NoDockWidgetFeatures);
  76         } else {
  77             setTitleBarWidget(nullptr);
  78             setFeatures(DefaultDockWidgetFeatures);
  79         }
  80     }
  81 }
  82
  83 bool DolphinDockWidget::isLocked() const
  84 {
  85     return m_locked;
  86 }
  87
  88 #include "dolphindockwidget.moc"