tools/designer/src/lib/shared/qdesigner_dockwidget.cpp
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the Qt Designer of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 
       
    42 #include "qdesigner_dockwidget_p.h"
       
    43 #include "layoutinfo_p.h"
       
    44 
       
    45 #include <QtDesigner/QDesignerFormWindowInterface>
       
    46 #include <QtDesigner/QDesignerFormEditorInterface>
       
    47 #include <QtDesigner/QDesignerContainerExtension>
       
    48 #include <QtDesigner/QExtensionManager>
       
    49 #include <QtDesigner/QDesignerFormWindowCursorInterface>
       
    50 
       
    51 #include <QtGui/QMainWindow>
       
    52 #include <QtGui/QLayout>
       
    53 
       
    54 QT_BEGIN_NAMESPACE
       
    55 
       
    56 QDesignerDockWidget::QDesignerDockWidget(QWidget *parent)
       
    57     : QDockWidget(parent)
       
    58 {
       
    59 }
       
    60 
       
    61 QDesignerDockWidget::~QDesignerDockWidget()
       
    62 {
       
    63 }
       
    64 
       
    65 bool QDesignerDockWidget::docked() const
       
    66 {
       
    67     return qobject_cast<QMainWindow*>(parentWidget()) != 0;
       
    68 }
       
    69 
       
    70 void QDesignerDockWidget::setDocked(bool b)
       
    71 {
       
    72     if (QMainWindow *mainWindow = findMainWindow()) {
       
    73         QDesignerFormEditorInterface *core = formWindow()->core();
       
    74         QDesignerContainerExtension *c;
       
    75         c = qt_extension<QDesignerContainerExtension*>(core->extensionManager(), mainWindow);
       
    76         if (b && !docked()) {
       
    77             // Dock it
       
    78             // ### undo/redo stack
       
    79             setParent(0);
       
    80             c->addWidget(this);
       
    81             formWindow()->selectWidget(this, formWindow()->cursor()->isWidgetSelected(this));
       
    82         } else if (!b && docked()) {
       
    83             // Undock it
       
    84             for (int i = 0; i < c->count(); ++i) {
       
    85                 if (c->widget(i) == this) {
       
    86                     c->remove(i);
       
    87                     break;
       
    88                 }
       
    89             }
       
    90             // #### restore the position
       
    91             setParent(mainWindow->centralWidget());
       
    92             show();
       
    93             formWindow()->selectWidget(this, formWindow()->cursor()->isWidgetSelected(this));
       
    94         }
       
    95     }
       
    96 }
       
    97 
       
    98 Qt::DockWidgetArea QDesignerDockWidget::dockWidgetArea() const
       
    99 {
       
   100     if (QMainWindow *mainWindow = qobject_cast<QMainWindow*>(parentWidget()))
       
   101         return mainWindow->dockWidgetArea(const_cast<QDesignerDockWidget*>(this));
       
   102 
       
   103     return Qt::LeftDockWidgetArea;
       
   104 }
       
   105 
       
   106 void QDesignerDockWidget::setDockWidgetArea(Qt::DockWidgetArea dockWidgetArea)
       
   107 {
       
   108     if (QMainWindow *mainWindow = qobject_cast<QMainWindow*>(parentWidget())) {
       
   109         if ((dockWidgetArea != Qt::NoDockWidgetArea)
       
   110             && isAreaAllowed(dockWidgetArea)) {
       
   111             mainWindow->addDockWidget(dockWidgetArea, this);
       
   112         }
       
   113     }
       
   114 }
       
   115 
       
   116 bool QDesignerDockWidget::inMainWindow() const
       
   117 {
       
   118     QMainWindow *mw = findMainWindow();
       
   119     if (mw && !mw->centralWidget()->layout()) {
       
   120         if (mw == parentWidget())
       
   121             return true;
       
   122         if (mw->centralWidget() == parentWidget())
       
   123             return true;
       
   124     }
       
   125     return false;
       
   126 }
       
   127 
       
   128 QDesignerFormWindowInterface *QDesignerDockWidget::formWindow() const
       
   129 {
       
   130     return QDesignerFormWindowInterface::findFormWindow(const_cast<QDesignerDockWidget*>(this));
       
   131 }
       
   132 
       
   133 QMainWindow *QDesignerDockWidget::findMainWindow() const
       
   134 {
       
   135     if (QDesignerFormWindowInterface *fw = formWindow())
       
   136         return qobject_cast<QMainWindow*>(fw->mainContainer());
       
   137     return 0;
       
   138 }
       
   139 
       
   140 QT_END_NAMESPACE