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DockAreaWidget.cpp
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DockAreaWidget.cpp
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/*******************************************************************************
** Qt Advanced Docking System
** Copyright (C) 2017 Uwe Kindler
**
** This library 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) any later version.
**
** This library 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/>.
******************************************************************************/
//============================================================================
/// \file DockAreaWidget.cpp
/// \author Uwe Kindler
/// \date 24.02.2017
/// \brief Implementation of CDockAreaWidget class
//============================================================================
//============================================================================
// INCLUDES
//============================================================================
#include <AutoHideDockContainer.h>
#include <AutoHideTab.h>
#include "DockAreaWidget.h"
#include <QStackedLayout>
#include <QScrollBar>
#include <QStyle>
#include <QPushButton>
#include <QDebug>
#include <QMenu>
#include <QXmlStreamWriter>
#include <QList>
#include "ElidingLabel.h"
#include "DockContainerWidget.h"
#include "DockWidget.h"
#include "FloatingDockContainer.h"
#include "DockManager.h"
#include "DockOverlay.h"
#include "DockAreaTabBar.h"
#include "DockSplitter.h"
#include "DockAreaTitleBar.h"
#include "DockComponentsFactory.h"
#include "DockWidgetTab.h"
#include "DockingStateReader.h"
namespace ads
{
static const char* const INDEX_PROPERTY = "index";
static const char* const ACTION_PROPERTY = "action";
/**
* Check, if auto hide is enabled
*/
static bool isAutoHideFeatureEnabled()
{
return CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideFeatureEnabled);
}
/**
* Internal dock area layout mimics stack layout but only inserts the current
* widget into the internal QLayout object.
* \warning Only the current widget has a parent. All other widgets
* do not have a parent. That means, a widget that is in this layout may
* return nullptr for its parent() function if it is not the current widget.
*/
class CDockAreaLayout
{
private:
QBoxLayout* m_ParentLayout;
QList<QPointer<QWidget>> m_Widgets;
int m_CurrentIndex = -1;
QWidget* m_CurrentWidget = nullptr;
public:
/**
* Creates an instance with the given parent layout
*/
CDockAreaLayout(QBoxLayout* ParentLayout)
: m_ParentLayout(ParentLayout)
{
}
/**
* Returns the number of widgets in this layout
*/
int count() const
{
return m_Widgets.count();
}
/**
* Inserts the widget at the given index position into the internal widget
* list
*/
void insertWidget(int index, QWidget* Widget)
{
Widget->setParent(nullptr);
if (index < 0)
{
index = m_Widgets.count();
}
m_Widgets.insert(index, Widget);
if (m_CurrentIndex < 0)
{
setCurrentIndex(index);
}
else
{
if (index <= m_CurrentIndex )
{
++m_CurrentIndex;
}
}
}
/**
* Removes the given widget from the layout
*/
void removeWidget(QWidget* Widget)
{
if (currentWidget() == Widget)
{
auto LayoutItem = m_ParentLayout->takeAt(1);
if (LayoutItem)
{
LayoutItem->widget()->setParent(nullptr);
}
delete LayoutItem;
m_CurrentWidget = nullptr;
m_CurrentIndex = -1;
}
else if (indexOf(Widget) < m_CurrentIndex)
{
--m_CurrentIndex;
}
m_Widgets.removeOne(Widget);
}
/**
* Returns the current selected widget
*/
QWidget* currentWidget() const
{
return m_CurrentWidget;
}
/**
* Activates the widget with the give index.
*/
void setCurrentIndex(int index)
{
QWidget *prev = currentWidget();
QWidget *next = widget(index);
if (!next || (next == prev && !m_CurrentWidget))
{
return;
}
bool reenableUpdates = false;
QWidget *parent = m_ParentLayout->parentWidget();
if (parent && parent->updatesEnabled())
{
reenableUpdates = true;
parent->setUpdatesEnabled(false);
}
auto LayoutItem = m_ParentLayout->takeAt(1);
if (LayoutItem)
{
LayoutItem->widget()->setParent(nullptr);
}
delete LayoutItem;
m_ParentLayout->addWidget(next);
if (prev)
{
prev->hide();
}
m_CurrentIndex = index;
m_CurrentWidget = next;
if (reenableUpdates)
{
parent->setUpdatesEnabled(true);
}
}
/**
* Returns the index of the current active widget
*/
int currentIndex() const
{
return m_CurrentIndex;
}
/**
* Returns true if there are no widgets in the layout
*/
bool isEmpty() const
{
return m_Widgets.empty();
}
/**
* Returns the index of the given widget
*/
int indexOf(QWidget* w) const
{
return m_Widgets.indexOf(w);
}
/**
* Returns the widget for the given index
*/
QWidget* widget(int index) const
{
return (index < m_Widgets.size()) ? m_Widgets.at(index) : nullptr;
}
/**
* Returns the geometry of the current active widget
*/
QRect geometry() const
{
return m_Widgets.empty() ? QRect() : currentWidget()->geometry();
}
};
using DockAreaLayout = CDockAreaLayout;
static const DockWidgetAreas DefaultAllowedAreas = AllDockAreas;
/**
* Private data class of CDockAreaWidget class (pimpl)
*/
struct DockAreaWidgetPrivate
{
CDockAreaWidget* _this = nullptr;
QBoxLayout* Layout = nullptr;
DockAreaLayout* ContentsLayout = nullptr;
CDockAreaTitleBar* TitleBar = nullptr;
CDockManager* DockManager = nullptr;
CAutoHideDockContainer* AutoHideDockContainer = nullptr;
bool UpdateTitleBarButtons = false;
DockWidgetAreas AllowedAreas = DefaultAllowedAreas;
QSize MinSizeHint;
CDockAreaWidget::DockAreaFlags Flags{CDockAreaWidget::DefaultFlags};
/**
* Private data constructor
*/
DockAreaWidgetPrivate(CDockAreaWidget* _public);
/**
* Convencience function to ease components factory access
*/
QSharedPointer<ads::CDockComponentsFactory> componentsFactory() const
{
return DockManager->componentsFactory();
}
/**
* Creates the layout for top area with tabs and close button
*/
void createTitleBar();
/**
* Returns the dock widget with the given index
*/
CDockWidget* dockWidgetAt(int index)
{
return qobject_cast<CDockWidget*>(ContentsLayout->widget(index));
}
/**
* Convenience function to ease title widget access by index
*/
CDockWidgetTab* tabWidgetAt(int index)
{
return dockWidgetAt(index)->tabWidget();
}
/**
* Returns the tab action of the given dock widget
*/
QAction* dockWidgetTabAction(CDockWidget* DockWidget) const
{
return qvariant_cast<QAction*>(DockWidget->property(ACTION_PROPERTY));
}
/**
* Returns the index of the given dock widget
*/
int dockWidgetIndex(CDockWidget* DockWidget) const
{
return DockWidget->property(INDEX_PROPERTY).toInt();
}
/**
* Convenience function for tabbar access
*/
CDockAreaTabBar* tabBar() const
{
return TitleBar->tabBar();
}
/**
* Updates the enable state of the close and detach button
*/
void updateTitleBarButtonStates();
/**
* Updates the enable state of the close and detach button
*/
void updateTitleBarButtonVisibility(bool isTopLevel);
/**
* Scans all contained dock widgets for the max. minimum size hint
*/
void updateMinimumSizeHint()
{
MinSizeHint = QSize();
for (int i = 0; i < ContentsLayout->count(); ++i)
{
auto Widget = ContentsLayout->widget(i);
MinSizeHint.setHeight(qMax(MinSizeHint.height(), Widget->minimumSizeHint().height()));
MinSizeHint.setWidth(qMax(MinSizeHint.width(), Widget->minimumSizeHint().width()));
}
}
};
//============================================================================
DockAreaWidgetPrivate::DockAreaWidgetPrivate(CDockAreaWidget* _public) :
_this(_public)
{
}
//============================================================================
void DockAreaWidgetPrivate::createTitleBar()
{
TitleBar = componentsFactory()->createDockAreaTitleBar(_this);
Layout->addWidget(TitleBar);
QObject::connect(tabBar(), &CDockAreaTabBar::tabCloseRequested, _this, &CDockAreaWidget::onTabCloseRequested);
QObject::connect(TitleBar, &CDockAreaTitleBar::tabBarClicked, _this, &CDockAreaWidget::setCurrentIndex);
QObject::connect(tabBar(), &CDockAreaTabBar::tabMoved, _this, &CDockAreaWidget::reorderDockWidget);
}
//============================================================================
void DockAreaWidgetPrivate::updateTitleBarButtonStates()
{
if (_this->isHidden())
{
UpdateTitleBarButtons = true;
return;
}
if (_this->isAutoHide())
{
if (CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideHasCloseButton))
{
TitleBar->button(TitleBarButtonClose)->setEnabled(
_this->features().testFlag(CDockWidget::DockWidgetClosable));
}
}
else
{
TitleBar->button(TitleBarButtonUndock)->setEnabled(
_this->features().testFlag(CDockWidget::DockWidgetFloatable));
TitleBar->button(TitleBarButtonClose)->setEnabled(
_this->features().testFlag(CDockWidget::DockWidgetClosable));
}
TitleBar->button(TitleBarButtonAutoHide)->setEnabled(
_this->features().testFlag(CDockWidget::DockWidgetPinnable));
TitleBar->updateDockWidgetActionsButtons();
UpdateTitleBarButtons = false;
}
//============================================================================
void DockAreaWidgetPrivate::updateTitleBarButtonVisibility(bool IsTopLevel)
{
auto *const container = _this->dockContainer();
if (!container)
{
return;
}
bool IsAutoHide = _this->isAutoHide();
if (IsAutoHide)
{
bool ShowCloseButton = CDockManager::testAutoHideConfigFlag(CDockManager::AutoHideHasCloseButton);
TitleBar->button(TitleBarButtonClose)->setVisible(ShowCloseButton);
TitleBar->button(TitleBarButtonAutoHide)->setVisible(true);
TitleBar->button(TitleBarButtonUndock)->setVisible(false);
TitleBar->button(TitleBarButtonTabsMenu)->setVisible(false);
}
else if (IsTopLevel)
{
TitleBar->button(TitleBarButtonClose)->setVisible(!container->isFloating());
TitleBar->button(TitleBarButtonAutoHide)->setVisible(!container->isFloating());
// Undock and tabs should never show when auto hidden
TitleBar->button(TitleBarButtonUndock)->setVisible(!container->isFloating());
TitleBar->button(TitleBarButtonTabsMenu)->setVisible(true);
}
else
{
TitleBar->button(TitleBarButtonClose)->setVisible(true);
bool ShowAutoHideButton = CDockManager::testAutoHideConfigFlag(CDockManager::DockAreaHasAutoHideButton);
TitleBar->button(TitleBarButtonAutoHide)->setVisible(ShowAutoHideButton);
TitleBar->button(TitleBarButtonUndock)->setVisible(true);
TitleBar->button(TitleBarButtonTabsMenu)->setVisible(true);
}
}
//============================================================================
CDockAreaWidget::CDockAreaWidget(CDockManager* DockManager, CDockContainerWidget* parent) :
QFrame(parent),
d(new DockAreaWidgetPrivate(this))
{
d->DockManager = DockManager;
d->Layout = new QBoxLayout(QBoxLayout::TopToBottom);
d->Layout->setContentsMargins(0, 0, 0, 0);
d->Layout->setSpacing(0);
setLayout(d->Layout);
d->createTitleBar();
d->ContentsLayout = new DockAreaLayout(d->Layout);
if (d->DockManager)
{
Q_EMIT d->DockManager->dockAreaCreated(this);
}
}
//============================================================================
CDockAreaWidget::~CDockAreaWidget()
{
ADS_PRINT("~CDockAreaWidget()");
delete d->ContentsLayout;
delete d;
}
//============================================================================
CDockManager* CDockAreaWidget::dockManager() const
{
return d->DockManager;
}
//============================================================================
CDockContainerWidget* CDockAreaWidget::dockContainer() const
{
return internal::findParent<CDockContainerWidget*>(this);
}
//============================================================================
CAutoHideDockContainer* CDockAreaWidget::autoHideDockContainer() const
{
return d->AutoHideDockContainer;
}
//============================================================================
CDockSplitter* CDockAreaWidget::parentSplitter() const
{
return internal::findParent<CDockSplitter*>(this);
}
//============================================================================
bool CDockAreaWidget::isAutoHide() const
{
return d->AutoHideDockContainer != nullptr;
}
//============================================================================
void CDockAreaWidget::setAutoHideDockContainer(CAutoHideDockContainer* AutoHideDockContainer)
{
d->AutoHideDockContainer = AutoHideDockContainer;
updateAutoHideButtonCheckState();
updateTitleBarButtonsToolTips();
d->TitleBar->button(TitleBarButtonAutoHide)->setShowInTitleBar(true);
}
//============================================================================
void CDockAreaWidget::addDockWidget(CDockWidget* DockWidget)
{
insertDockWidget(d->ContentsLayout->count(), DockWidget);
}
//============================================================================
void CDockAreaWidget::insertDockWidget(int index, CDockWidget* DockWidget,
bool Activate)
{
if (index < 0 || index > d->ContentsLayout->count())
{
index = d->ContentsLayout->count();
}
d->ContentsLayout->insertWidget(index, DockWidget);
DockWidget->setDockArea(this);
DockWidget->tabWidget()->setDockAreaWidget(this);
auto TabWidget = DockWidget->tabWidget();
// Inserting the tab will change the current index which in turn will
// make the tab widget visible in the slot
d->tabBar()->blockSignals(true);
d->tabBar()->insertTab(index, TabWidget);
d->tabBar()->blockSignals(false);
TabWidget->setVisible(!DockWidget->isClosed());
d->TitleBar->autoHideTitleLabel()->setText(DockWidget->windowTitle());
DockWidget->setProperty(INDEX_PROPERTY, index);
d->MinSizeHint.setHeight(qMax(d->MinSizeHint.height(), DockWidget->minimumSizeHint().height()));
d->MinSizeHint.setWidth(qMax(d->MinSizeHint.width(), DockWidget->minimumSizeHint().width()));
if (Activate)
{
setCurrentIndex(index);
DockWidget->setClosedState(false); // Set current index can show the widget without changing the close state, added to keep the close state consistent
}
// If this dock area is hidden, then we need to make it visible again
// by calling DockWidget->toggleViewInternal(true);
if (!this->isVisible() && d->ContentsLayout->count() > 1 && !dockManager()->isRestoringState())
{
DockWidget->toggleViewInternal(true);
}
d->updateTitleBarButtonStates();
updateTitleBarVisibility();
}
//============================================================================
void CDockAreaWidget::removeDockWidget(CDockWidget* DockWidget)
{
ADS_PRINT("CDockAreaWidget::removeDockWidget");
if (!DockWidget)
{
return;
}
// If this dock area is in a auto hide container, then we can delete
// the auto hide container now
if (isAutoHide())
{
autoHideDockContainer()->cleanupAndDelete();
return;
}
auto CurrentDockWidget = currentDockWidget();
auto NextOpenDockWidget = (DockWidget == CurrentDockWidget) ? nextOpenDockWidget(DockWidget) : nullptr;
d->ContentsLayout->removeWidget(DockWidget);
auto TabWidget = DockWidget->tabWidget();
TabWidget->hide();
d->tabBar()->removeTab(TabWidget);
TabWidget->setParent(DockWidget);
DockWidget->setDockArea(nullptr);
CDockContainerWidget* DockContainer = dockContainer();
if (NextOpenDockWidget)
{
setCurrentDockWidget(NextOpenDockWidget);
}
else if (d->ContentsLayout->isEmpty() && DockContainer->dockAreaCount() >= 1)
{
ADS_PRINT("Dock Area empty");
DockContainer->removeDockArea(this);
this->deleteLater();
if(DockContainer->dockAreaCount() == 0)
{
if(CFloatingDockContainer* FloatingDockContainer = DockContainer->floatingWidget())
{
FloatingDockContainer->hide();
FloatingDockContainer->deleteLater();
}
}
}
else if (DockWidget == CurrentDockWidget)
{
// if contents layout is not empty but there are no more open dock
// widgets, then we need to hide the dock area because it does not
// contain any visible content
hideAreaWithNoVisibleContent();
}
d->updateTitleBarButtonStates();
updateTitleBarVisibility();
d->updateMinimumSizeHint();
auto TopLevelDockWidget = DockContainer->topLevelDockWidget();
if (TopLevelDockWidget)
{
TopLevelDockWidget->emitTopLevelChanged(true);
}
#if (ADS_DEBUG_LEVEL > 0)
DockContainer->dumpLayout();
#endif
}
//============================================================================
void CDockAreaWidget::hideAreaWithNoVisibleContent()
{
this->toggleView(false);
// Hide empty parent splitters
auto Splitter = parentSplitter();
internal::hideEmptyParentSplitters(Splitter);
//Hide empty floating widget
CDockContainerWidget* Container = this->dockContainer();
if (!Container->isFloating() && !CDockManager::testConfigFlag(CDockManager::HideSingleCentralWidgetTitleBar))
{
return;
}
updateTitleBarVisibility();
auto TopLevelWidget = Container->topLevelDockWidget();
auto FloatingWidget = Container->floatingWidget();
if (TopLevelWidget)
{
if (FloatingWidget)
{
FloatingWidget->updateWindowTitle();
}
CDockWidget::emitTopLevelEventForWidget(TopLevelWidget, true);
}
else if (Container->openedDockAreas().isEmpty() && FloatingWidget)
{
FloatingWidget->hide();
}
if (isAutoHide())
{
autoHideDockContainer()->hide();
}
}
//============================================================================
void CDockAreaWidget::onTabCloseRequested(int Index)
{
ADS_PRINT("CDockAreaWidget::onTabCloseRequested " << Index);
dockWidget(Index)->requestCloseDockWidget();
}
//============================================================================
CDockWidget* CDockAreaWidget::currentDockWidget() const
{
int CurrentIndex = currentIndex();
if (CurrentIndex < 0)
{
return nullptr;
}
return dockWidget(CurrentIndex);
}
//============================================================================
void CDockAreaWidget::setCurrentDockWidget(CDockWidget* DockWidget)
{
if (dockManager()->isRestoringState())
{
return;
}
internalSetCurrentDockWidget(DockWidget);
}
//============================================================================
void CDockAreaWidget::internalSetCurrentDockWidget(CDockWidget* DockWidget)
{
int Index = index(DockWidget);
if (Index < 0)
{
return;
}
setCurrentIndex(Index);
DockWidget->setClosedState(false); // Set current index can show the widget without changing the close state, added to keep the close state consistent
}
//============================================================================
void CDockAreaWidget::setCurrentIndex(int index)
{
auto TabBar = d->tabBar();
if (index < 0 || index > (TabBar->count() - 1))
{
qWarning() << Q_FUNC_INFO << "Invalid index" << index;
return;
}
auto cw = d->ContentsLayout->currentWidget();
auto nw = d->ContentsLayout->widget(index);
if (cw == nw && !nw->isHidden())
{
return;
}
Q_EMIT currentChanging(index);
TabBar->setCurrentIndex(index);
d->ContentsLayout->setCurrentIndex(index);
d->ContentsLayout->currentWidget()->show();
Q_EMIT currentChanged(index);
}
//============================================================================
int CDockAreaWidget::currentIndex() const
{
return d->ContentsLayout->currentIndex();
}
//============================================================================
QRect CDockAreaWidget::titleBarGeometry() const
{
return d->TitleBar->geometry();
}
//============================================================================
QRect CDockAreaWidget::contentAreaGeometry() const
{
return d->ContentsLayout->geometry();
}
//============================================================================
int CDockAreaWidget::index(CDockWidget* DockWidget)
{
return d->ContentsLayout->indexOf(DockWidget);
}
//============================================================================
QList<CDockWidget*> CDockAreaWidget::dockWidgets() const
{
QList<CDockWidget*> DockWidgetList;
for (int i = 0; i < d->ContentsLayout->count(); ++i)
{
DockWidgetList.append(dockWidget(i));
}
return DockWidgetList;
}
//============================================================================
int CDockAreaWidget::openDockWidgetsCount() const
{
int Count = 0;
for (int i = 0; i < d->ContentsLayout->count(); ++i)
{
if (dockWidget(i) && !dockWidget(i)->isClosed())
{
++Count;
}
}
return Count;
}
//============================================================================
QList<CDockWidget*> CDockAreaWidget::openedDockWidgets() const
{
QList<CDockWidget*> DockWidgetList;
for (int i = 0; i < d->ContentsLayout->count(); ++i)
{
CDockWidget* DockWidget = dockWidget(i);
if (DockWidget && !DockWidget->isClosed())
{
DockWidgetList.append(dockWidget(i));
}
}
return DockWidgetList;
}
//============================================================================
int CDockAreaWidget::indexOfFirstOpenDockWidget() const
{
for (int i = 0; i < d->ContentsLayout->count(); ++i)
{
if (dockWidget(i) && !dockWidget(i)->isClosed())
{
return i;
}
}
return -1;
}
//============================================================================
int CDockAreaWidget::dockWidgetsCount() const
{
return d->ContentsLayout->count();
}
//============================================================================
CDockWidget* CDockAreaWidget::dockWidget(int Index) const
{
return qobject_cast<CDockWidget*>(d->ContentsLayout->widget(Index));
}
//============================================================================
void CDockAreaWidget::reorderDockWidget(int fromIndex, int toIndex)
{
ADS_PRINT("CDockAreaWidget::reorderDockWidget");
if (fromIndex >= d->ContentsLayout->count() || fromIndex < 0
|| toIndex >= d->ContentsLayout->count() || toIndex < 0 || fromIndex == toIndex)
{
ADS_PRINT("Invalid index for tab movement" << fromIndex << toIndex);
return;
}
auto Widget = d->ContentsLayout->widget(fromIndex);
d->ContentsLayout->removeWidget(Widget);
d->ContentsLayout->insertWidget(toIndex, Widget);
setCurrentIndex(toIndex);
}
//============================================================================
void CDockAreaWidget::toggleDockWidgetView(CDockWidget* DockWidget, bool Open)
{
Q_UNUSED(DockWidget);
Q_UNUSED(Open);
updateTitleBarVisibility();
}
//============================================================================
void CDockAreaWidget::updateTitleBarVisibility()
{
CDockContainerWidget* Container = dockContainer();
if (!Container)
{
return;
}
if (!d->TitleBar)
{
return;
}
bool IsAutoHide = isAutoHide();
if (!CDockManager::testConfigFlag(CDockManager::AlwaysShowTabs))
{
bool Hidden = Container->hasTopLevelDockWidget() && (Container->isFloating()
|| CDockManager::testConfigFlag(CDockManager::HideSingleCentralWidgetTitleBar));
Hidden |= (d->Flags.testFlag(HideSingleWidgetTitleBar) && openDockWidgetsCount() == 1);
Hidden &= !IsAutoHide; // Titlebar must always be visible when auto hidden so it can be dragged
d->TitleBar->setVisible(!Hidden);
}
if (isAutoHideFeatureEnabled())
{
d->TitleBar->showAutoHideControls(IsAutoHide);
updateTitleBarButtonVisibility(Container->topLevelDockArea() == this);
}
}
//============================================================================
void CDockAreaWidget::markTitleBarMenuOutdated()
{
if (d->TitleBar)
{
d->TitleBar->markTabsMenuOutdated();
}
}
//============================================================================
void CDockAreaWidget::updateAutoHideButtonCheckState()
{
auto autoHideButton = titleBarButton(TitleBarButtonAutoHide);
autoHideButton->blockSignals(true);
autoHideButton->setChecked(isAutoHide());
autoHideButton->blockSignals(false);
}
//============================================================================
void CDockAreaWidget::updateTitleBarButtonVisibility(bool IsTopLevel) const
{
d->updateTitleBarButtonVisibility(IsTopLevel);
}
//============================================================================
void CDockAreaWidget::updateTitleBarButtonsToolTips()
{
internal::setToolTip(titleBarButton(TitleBarButtonClose),
titleBar()->titleBarButtonToolTip(TitleBarButtonClose));
internal::setToolTip(titleBarButton(TitleBarButtonAutoHide),
titleBar()->titleBarButtonToolTip(TitleBarButtonAutoHide));
}
//============================================================================
void CDockAreaWidget::saveState(QXmlStreamWriter& s) const
{
s.writeStartElement("Area");
s.writeAttribute("Tabs", QString::number(d->ContentsLayout->count()));
auto CurrentDockWidget = currentDockWidget();
QString Name = CurrentDockWidget ? CurrentDockWidget->objectName() : "";
s.writeAttribute("Current", Name);
if (d->AllowedAreas != DefaultAllowedAreas)
{
s.writeAttribute("AllowedAreas", QString::number(d->AllowedAreas, 16));
}
if (d->Flags != DefaultFlags)
{
s.writeAttribute("Flags", QString::number(d->Flags, 16));
}
ADS_PRINT("CDockAreaWidget::saveState TabCount: " << d->ContentsLayout->count()
<< " Current: " << Name);
for (int i = 0; i < d->ContentsLayout->count(); ++i)
{
dockWidget(i)->saveState(s);
}
s.writeEndElement();
}
//============================================================================
bool CDockAreaWidget::restoreState(CDockingStateReader& s, CDockAreaWidget*& CreatedWidget,
bool Testing, CDockContainerWidget* Container)
{
bool Ok;
#ifdef ADS_DEBUG_PRINT
int Tabs = s.attributes().value("Tabs").toInt(&Ok);
if (!Ok)
{
return false;
}
#endif
QString CurrentDockWidget = s.attributes().value("Current").toString();
ADS_PRINT("Restore NodeDockArea Tabs: " << Tabs << " Current: "
<< CurrentDockWidget);
auto DockManager = Container->dockManager();
CDockAreaWidget* DockArea = nullptr;
if (!Testing)
{
DockArea = new CDockAreaWidget(DockManager, Container);
const auto AllowedAreasAttribute = s.attributes().value("AllowedAreas");
if (!AllowedAreasAttribute.isEmpty())
{
DockArea->setAllowedAreas((DockWidgetArea)AllowedAreasAttribute.toInt(nullptr, 16));
}
const auto FlagsAttribute = s.attributes().value("Flags");
if (!FlagsAttribute.isEmpty())
{
DockArea->setDockAreaFlags((CDockAreaWidget::DockAreaFlags)FlagsAttribute.toInt(nullptr, 16));
}
}
while (s.readNextStartElement())
{
if (s.name() != QLatin1String("Widget"))
{
continue;
}
auto ObjectName = s.attributes().value("Name");
if (ObjectName.isEmpty())
{
return false;