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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QMDISUBWINDOW_P_H
#define QMDISUBWINDOW_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 <QtWidgets/private/qtwidgetsglobal_p.h>
#include "qmdisubwindow.h"
#include <QStyle>
#include <QStyleOptionTitleBar>
#if QT_CONFIG(menubar)
#include <QMenuBar>
#endif
#if QT_CONFIG(sizegrip)
#include <QSizeGrip>
#endif
#include <QPointer>
#include <QDebug>
#include <private/qwidget_p.h>
QT_REQUIRE_CONFIG(mdiarea);
QT_BEGIN_NAMESPACE
class QVBoxLayout;
class QMouseEvent;
namespace QMdi {
template<typename T>
class ControlElement : public T
{
public:
ControlElement(QMdiSubWindow *child) : T(child, nullptr)
{
Q_ASSERT(child);
mdiChild = child;
}
void *qt_metacast(const char *classname) override
{
if (classname && strcmp(classname, "ControlElement") == 0)
return this;
return nullptr;
}
QPointer<QMdiSubWindow> mdiChild;
};
class ControlContainer : public QObject
{
public:
ControlContainer(QMdiSubWindow *mdiChild);
~ControlContainer();
#if QT_CONFIG(menubar)
void showButtonsInMenuBar(QMenuBar *menuBar);
void removeButtonsFromMenuBar(QMenuBar *menuBar = nullptr);
QMenuBar *menuBar() const { return m_menuBar; }
#endif
void updateWindowIcon(const QIcon &windowIcon);
QWidget *controllerWidget() const { return m_controllerWidget; }
QWidget *systemMenuLabel() const { return m_menuLabel; }
private:
QPointer<QWidget> previousLeft;
QPointer<QWidget> previousRight;
#if QT_CONFIG(menubar)
QPointer<QMenuBar> m_menuBar;
#endif
QPointer<QWidget> m_controllerWidget;
QPointer<QWidget> m_menuLabel;
QPointer<QMdiSubWindow> mdiChild;
};
} // namespace QMdi
class Q_AUTOTEST_EXPORT QMdiSubWindowPrivate : public QWidgetPrivate
{
Q_DECLARE_PUBLIC(QMdiSubWindow)
public:
// Enums and typedefs.
enum Operation {
None,
Move,
TopResize,
BottomResize,
LeftResize,
RightResize,
TopLeftResize,
TopRightResize,
BottomLeftResize,
BottomRightResize
};
enum ChangeFlag {
HMove = 0x01,
VMove = 0x02,
HResize = 0x04,
VResize = 0x08,
HResizeReverse = 0x10,
VResizeReverse = 0x20
};
enum WindowStateAction {
RestoreAction,
MoveAction,
ResizeAction,
MinimizeAction,
MaximizeAction,
StayOnTopAction,
CloseAction,
/* Add new states _above_ this line! */
NumWindowStateActions
};
struct OperationInfo {
uint changeFlags;
Qt::CursorShape cursorShape;
QRegion region;
bool hover;
OperationInfo(uint changeFlags, Qt::CursorShape cursorShape, bool hover = true)
: changeFlags(changeFlags),
cursorShape(cursorShape),
hover(hover)
{}
};
typedef QMap<Operation, OperationInfo> OperationInfoMap;
QMdiSubWindowPrivate();
// Variables.
QPointer<QWidget> baseWidget;
QPointer<QWidget> restoreFocusWidget;
QPointer<QMdi::ControlContainer> controlContainer;
#if QT_CONFIG(sizegrip)
QPointer<QSizeGrip> sizeGrip;
#endif
#if QT_CONFIG(rubberband)
QRubberBand *rubberBand;
#endif
QPoint mousePressPosition;
QRect oldGeometry;
QSize internalMinimumSize;
QSize userMinimumSize;
QSize restoreSize;
bool resizeEnabled;
bool moveEnabled;
bool isInInteractiveMode;
#if QT_CONFIG(rubberband)
bool isInRubberBandMode;
#endif
bool isShadeMode;
bool ignoreWindowTitleChange;
bool ignoreNextActivationEvent;
bool activationEnabled;
bool isShadeRequestFromMinimizeMode;
bool isMaximizeMode;
bool isWidgetHiddenByUs;
bool isActive;
bool isExplicitlyDeactivated;
int keyboardSingleStep;
int keyboardPageStep;
int resizeTimerId;
Operation currentOperation;
QStyle::SubControl hoveredSubControl;
QStyle::SubControl activeSubControl;
Qt::FocusReason focusInReason;
OperationInfoMap operationMap;
QPointer<QMenu> systemMenu;
#ifndef QT_NO_ACTION
QPointer<QAction> actions[NumWindowStateActions];
#endif
QMdiSubWindow::SubWindowOptions options;
QString lastChildWindowTitle;
QPalette titleBarPalette;
QString windowTitle;
QFont font;
QIcon menuIcon;
QStyleOptionTitleBar cachedStyleOptions;
QString originalTitle;
// Slots.
void _q_updateStaysOnTopHint();
void _q_enterInteractiveMode();
void _q_processFocusChanged(QWidget *old, QWidget *now);
// Functions.
void leaveInteractiveMode();
void removeBaseWidget();
void initOperationMap();
#if QT_CONFIG(menu)
void createSystemMenu();
#endif
void updateCursor();
void updateDirtyRegions();
void updateGeometryConstraints();
void updateMask();
void setNewGeometry(const QPoint &pos);
void setMinimizeMode();
void setNormalMode();
void setMaximizeMode();
void setActive(bool activate, bool changeFocus = true);
void processClickedSubControl();
QRegion getRegion(Operation operation) const;
Operation getOperation(const QPoint &pos) const;
QStyleOptionTitleBar titleBarOptions() const;
void ensureWindowState(Qt::WindowState state);
int titleBarHeight(const QStyleOptionTitleBar &options) const;
void sizeParameters(int *margin, int *minWidth) const;
bool drawTitleBarWhenMaximized() const;
#if QT_CONFIG(menubar)
QMenuBar *menuBar() const;
void showButtonsInMenuBar(QMenuBar *menuBar);
void removeButtonsFromMenuBar();
#endif
void updateWindowTitle(bool requestFromChild);
#if QT_CONFIG(rubberband)
void enterRubberBandMode();
void leaveRubberBandMode();
#endif
QPalette desktopPalette() const;
void updateActions();
void setFocusWidget();
bool restoreFocus();
void storeFocusWidget();
void setWindowFlags(Qt::WindowFlags windowFlags) override;
void setVisible(WindowStateAction, bool visible = true);
#ifndef QT_NO_ACTION
void setEnabled(WindowStateAction, bool enable = true);
#if QT_CONFIG(menu)
void addToSystemMenu(WindowStateAction, const QString &text, const char *slot);
#endif
#endif // QT_NO_ACTION
QSize iconSize() const;
#if QT_CONFIG(sizegrip)
void setSizeGrip(QSizeGrip *sizeGrip);
void setSizeGripVisible(bool visible = true) const;
#endif
void updateInternalWindowTitle();
QString originalWindowTitle();
QString originalWindowTitleHelper() const;
void setNewWindowTitle();
inline int titleBarHeight() const
{
Q_Q(const QMdiSubWindow);
if (!parent || q->windowFlags() & Qt::FramelessWindowHint
|| (q->isMaximized() && !drawTitleBarWhenMaximized())) {
return 0;
}
QStyleOptionTitleBar options = titleBarOptions();
int height = options.rect.height();
if (hasBorder(options))
height += q->isMinimized() ? 8 : 4;
return height;
}
inline QStyle::SubControl getSubControl(const QPoint &pos) const
{
Q_Q(const QMdiSubWindow);
QStyleOptionTitleBar titleBarOptions = this->titleBarOptions();
return q->style()->hitTestComplexControl(QStyle::CC_TitleBar, &titleBarOptions, pos, q);
}
inline void setNewGeometry(QRect *geometry)
{
Q_Q(QMdiSubWindow);
Q_ASSERT(parent);
geometry->setSize(geometry->size().expandedTo(internalMinimumSize));
#if QT_CONFIG(rubberband)
if (isInRubberBandMode)
rubberBand->setGeometry(*geometry);
else
#endif
q->setGeometry(*geometry);
}
inline bool hasBorder(const QStyleOptionTitleBar &options) const
{
Q_Q(const QMdiSubWindow);
return !q->style()->styleHint(QStyle::SH_TitleBar_NoBorder, &options, q);
}
inline bool autoRaise() const
{
Q_Q(const QMdiSubWindow);
return q->style()->styleHint(QStyle::SH_TitleBar_AutoRaise, nullptr, q);
}
inline bool isResizeOperation() const
{
return currentOperation != None && currentOperation != Move;
}
inline bool isMoveOperation() const
{
return currentOperation == Move;
}
};
QT_END_NAMESPACE
#endif // QMDISUBWINDOW_P_H
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