/**************************************************************************** | |
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). | |
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** This file is part of the QtGui module of the Qt Toolkit. | |
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** $QT_BEGIN_LICENSE:LGPL$ | |
** GNU Lesser General Public License Usage | |
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** rights. These rights are described in the Nokia Qt LGPL Exception | |
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. | |
** | |
** GNU General Public License Usage | |
** Alternatively, this file may be used under the terms of the GNU General | |
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** file. Please review the following information to ensure the GNU General | |
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** $QT_END_LICENSE$ | |
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****************************************************************************/ | |
#ifndef QMDIAREA_P_H | |
#define QMDIAREA_P_H | |
// | |
// W A R N I N G | |
// ------------- | |
// | |
// This file is not part of the Qt API. It exists purely as an | |
// implementation detail. This header file may change from version to | |
// version without notice, or even be removed. | |
// | |
// We mean it. | |
// | |
#include "qmdiarea.h" | |
#include "qmdisubwindow.h" | |
#ifndef QT_NO_MDIAREA | |
#include <QList> | |
#include <QRect> | |
#include <QPoint> | |
#include <QtGui/qapplication.h> | |
#include <private/qmdisubwindow_p.h> | |
#include <private/qabstractscrollarea_p.h> | |
QT_BEGIN_NAMESPACE | |
namespace QMdi { | |
class Rearranger | |
{ | |
public: | |
enum Type { | |
RegularTiler, | |
SimpleCascader, | |
IconTiler | |
}; | |
// Rearranges widgets relative to domain. | |
virtual void rearrange(QList<QWidget *> &widgets, const QRect &domain) const = 0; | |
virtual Type type() const = 0; | |
virtual ~Rearranger() {} | |
}; | |
class RegularTiler : public Rearranger | |
{ | |
// Rearranges widgets according to a regular tiling pattern | |
// covering the entire domain. | |
// Both positions and sizes may change. | |
void rearrange(QList<QWidget *> &widgets, const QRect &domain) const; | |
inline Type type() const { return Rearranger::RegularTiler; } | |
}; | |
class SimpleCascader : public Rearranger | |
{ | |
// Rearranges widgets according to a simple, regular cascading pattern. | |
// Widgets are resized to minimumSize. | |
// Both positions and sizes may change. | |
void rearrange(QList<QWidget *> &widgets, const QRect &domain) const; | |
inline Type type() const { return Rearranger::SimpleCascader; } | |
}; | |
class IconTiler : public Rearranger | |
{ | |
// Rearranges icons (assumed to be the same size) according to a regular | |
// tiling pattern filling up the domain from the bottom. | |
// Only positions may change. | |
void rearrange(QList<QWidget *> &widgets, const QRect &domain) const; | |
inline Type type() const { return Rearranger::IconTiler; } | |
}; | |
class Placer | |
{ | |
public: | |
// Places the rectangle defined by 'size' relative to 'rects' and 'domain'. | |
// Returns the position of the resulting rectangle. | |
virtual QPoint place( | |
const QSize &size, const QList<QRect> &rects, const QRect &domain) const = 0; | |
virtual ~Placer() {} | |
}; | |
class MinOverlapPlacer : public Placer | |
{ | |
QPoint place(const QSize &size, const QList<QRect> &rects, const QRect &domain) const; | |
static int accumulatedOverlap(const QRect &source, const QList<QRect> &rects); | |
static QRect findMinOverlapRect(const QList<QRect> &source, const QList<QRect> &rects); | |
static void getCandidatePlacements( | |
const QSize &size, const QList<QRect> &rects, const QRect &domain, | |
QList<QRect> &candidates); | |
static QPoint findBestPlacement( | |
const QRect &domain, const QList<QRect> &rects, QList<QRect> &source); | |
static void findNonInsiders( | |
const QRect &domain, QList<QRect> &source, QList<QRect> &result); | |
static void findMaxOverlappers( | |
const QRect &domain, const QList<QRect> &source, QList<QRect> &result); | |
}; | |
} // namespace QMdi | |
class QMdiAreaTabBar; | |
class QMdiAreaPrivate : public QAbstractScrollAreaPrivate | |
{ | |
Q_DECLARE_PUBLIC(QMdiArea) | |
public: | |
QMdiAreaPrivate(); | |
// Variables. | |
QMdi::Rearranger *cascader; | |
QMdi::Rearranger *regularTiler; | |
QMdi::Rearranger *iconTiler; | |
QMdi::Placer *placer; | |
#ifndef QT_NO_RUBBERBAND | |
QRubberBand *rubberBand; | |
#endif | |
QMdiAreaTabBar *tabBar; | |
QList<QMdi::Rearranger *> pendingRearrangements; | |
QList< QPointer<QMdiSubWindow> > pendingPlacements; | |
QList< QPointer<QMdiSubWindow> > childWindows; | |
QList<int> indicesToActivatedChildren; | |
QPointer<QMdiSubWindow> active; | |
QPointer<QMdiSubWindow> aboutToBecomeActive; | |
QBrush background; | |
QMdiArea::WindowOrder activationOrder; | |
QMdiArea::AreaOptions options; | |
QMdiArea::ViewMode viewMode; | |
#ifndef QT_NO_TABBAR | |
bool documentMode; | |
#endif | |
#ifndef QT_NO_TABWIDGET | |
QTabWidget::TabShape tabShape; | |
QTabWidget::TabPosition tabPosition; | |
#endif | |
bool ignoreGeometryChange; | |
bool ignoreWindowStateChange; | |
bool isActivated; | |
bool isSubWindowsTiled; | |
bool showActiveWindowMaximized; | |
bool tileCalledFromResizeEvent; | |
bool updatesDisabledByUs; | |
bool inViewModeChange; | |
int indexToNextWindow; | |
int indexToPreviousWindow; | |
int indexToHighlighted; | |
int indexToLastActiveTab; | |
int resizeTimerId; | |
int tabToPreviousTimerId; | |
// Slots. | |
void _q_deactivateAllWindows(QMdiSubWindow *aboutToActivate = 0); | |
void _q_processWindowStateChanged(Qt::WindowStates oldState, Qt::WindowStates newState); | |
void _q_currentTabChanged(int index); | |
// Functions. | |
void appendChild(QMdiSubWindow *child); | |
void place(QMdi::Placer *placer, QMdiSubWindow *child); | |
void rearrange(QMdi::Rearranger *rearranger); | |
void arrangeMinimizedSubWindows(); | |
void activateWindow(QMdiSubWindow *child); | |
void activateCurrentWindow(); | |
void activateHighlightedWindow(); | |
void emitWindowActivated(QMdiSubWindow *child); | |
void resetActiveWindow(QMdiSubWindow *child = 0); | |
void updateActiveWindow(int removedIndex, bool activeRemoved); | |
void updateScrollBars(); | |
void internalRaise(QMdiSubWindow *child) const; | |
bool scrollBarsEnabled() const; | |
bool lastWindowAboutToBeDestroyed() const; | |
void setChildActivationEnabled(bool enable = true, bool onlyNextActivationEvent = false) const; | |
QRect resizeToMinimumTileSize(const QSize &minSubWindowSize, int subWindowCount); | |
void scrollBarPolicyChanged(Qt::Orientation, Qt::ScrollBarPolicy); // reimp | |
QMdiSubWindow *nextVisibleSubWindow(int increaseFactor, QMdiArea::WindowOrder, | |
int removed = -1, int fromIndex = -1) const; | |
void highlightNextSubWindow(int increaseFactor); | |
QList<QMdiSubWindow *> subWindowList(QMdiArea::WindowOrder, bool reversed = false) const; | |
void disconnectSubWindow(QObject *subWindow); | |
void setViewMode(QMdiArea::ViewMode mode); | |
#ifndef QT_NO_TABBAR | |
void updateTabBarGeometry(); | |
void refreshTabBar(); | |
#endif | |
inline void startResizeTimer() | |
{ | |
Q_Q(QMdiArea); | |
if (resizeTimerId > 0) | |
q->killTimer(resizeTimerId); | |
resizeTimerId = q->startTimer(200); | |
} | |
inline void startTabToPreviousTimer() | |
{ | |
Q_Q(QMdiArea); | |
if (tabToPreviousTimerId > 0) | |
q->killTimer(tabToPreviousTimerId); | |
tabToPreviousTimerId = q->startTimer(QApplication::keyboardInputInterval()); | |
} | |
inline bool windowStaysOnTop(QMdiSubWindow *subWindow) const | |
{ | |
if (!subWindow) | |
return false; | |
return subWindow->windowFlags() & Qt::WindowStaysOnTopHint; | |
} | |
inline bool isExplicitlyDeactivated(QMdiSubWindow *subWindow) const | |
{ | |
if (!subWindow) | |
return true; | |
return subWindow->d_func()->isExplicitlyDeactivated; | |
} | |
inline void setActive(QMdiSubWindow *subWindow, bool active = true, bool changeFocus = true) const | |
{ | |
if (subWindow) | |
subWindow->d_func()->setActive(active, changeFocus); | |
} | |
#ifndef QT_NO_RUBBERBAND | |
inline void showRubberBandFor(QMdiSubWindow *subWindow) | |
{ | |
if (!subWindow || !rubberBand) | |
return; | |
rubberBand->setGeometry(subWindow->geometry()); | |
rubberBand->raise(); | |
rubberBand->show(); | |
} | |
inline void hideRubberBand() | |
{ | |
if (rubberBand && rubberBand->isVisible()) | |
rubberBand->hide(); | |
indexToHighlighted = -1; | |
} | |
#endif // QT_NO_RUBBERBAND | |
}; | |
#endif // QT_NO_MDIAREA | |
QT_END_NAMESPACE | |
#endif // QMDIAREA_P_H |