diff options
Diffstat (limited to 'src/widgets/widgets/qwidgetresizehandler_p.h')
-rw-r--r-- | src/widgets/widgets/qwidgetresizehandler_p.h | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/src/widgets/widgets/qwidgetresizehandler_p.h b/src/widgets/widgets/qwidgetresizehandler_p.h new file mode 100644 index 0000000000..9d09d63967 --- /dev/null +++ b/src/widgets/widgets/qwidgetresizehandler_p.h @@ -0,0 +1,141 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** GNU Lesser General Public License Usage +** This file may be used under the terms of the GNU Lesser General Public +** License version 2.1 as published by the Free Software Foundation and +** appearing in the file LICENSE.LGPL included in the packaging of this +** file. Please review the following information to ensure the GNU Lesser +** General Public License version 2.1 requirements will be met: +** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** 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 +** Public License version 3.0 as published by the Free Software Foundation +** and appearing in the file LICENSE.GPL included in the packaging of this +** file. Please review the following information to ensure the GNU General +** Public License version 3.0 requirements will be met: +** http://www.gnu.org/copyleft/gpl.html. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QWIDGETRESIZEHANDLER_P_H +#define QWIDGETRESIZEHANDLER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. This header file may +// change from version to version without notice, or even be +// removed. +// +// We mean it. +// + +#include "QtCore/qobject.h" +#include "QtCore/qpoint.h" + +#ifndef QT_NO_RESIZEHANDLER + +QT_BEGIN_NAMESPACE + +class QMouseEvent; +class QKeyEvent; + +class Q_WIDGETS_EXPORT QWidgetResizeHandler : public QObject +{ + Q_OBJECT + +public: + enum Action { + Move = 0x01, + Resize = 0x02, + Any = Move|Resize + }; + + explicit QWidgetResizeHandler(QWidget *parent, QWidget *cw = 0); + void setActive(bool b) { setActive(Any, b); } + void setActive(Action ac, bool b); + bool isActive() const { return isActive(Any); } + bool isActive(Action ac) const; + void setMovingEnabled(bool b) { movingEnabled = b; } + bool isMovingEnabled() const { return movingEnabled; } + + bool isButtonDown() const { return buttonDown; } + + void setExtraHeight(int h) { extrahei = h; } + void setSizeProtection(bool b) { sizeprotect = b; } + + void setFrameWidth(int w) { fw = w; } + + void doResize(); + void doMove(); + +Q_SIGNALS: + void activate(); + +protected: + bool eventFilter(QObject *o, QEvent *e); + void mouseMoveEvent(QMouseEvent *e); + void keyPressEvent(QKeyEvent *e); + +private: + Q_DISABLE_COPY(QWidgetResizeHandler) + + enum MousePosition { + Nowhere, + TopLeft, BottomRight, BottomLeft, TopRight, + Top, Bottom, Left, Right, + Center + }; + + QWidget *widget; + QWidget *childWidget; + QPoint moveOffset; + QPoint invertedMoveOffset; + MousePosition mode; + int fw; + int extrahei; + int range; + uint buttonDown :1; + uint moveResizeMode :1; + uint activeForResize :1; + uint sizeprotect :1; + uint movingEnabled :1; + uint activeForMove :1; + + void setMouseCursor(MousePosition m); + bool isMove() const { + return moveResizeMode && mode == Center; + } + bool isResize() const { + return moveResizeMode && !isMove(); + } +}; + +QT_END_NAMESPACE + +#endif // QT_NO_RESIZEHANDLER + +#endif // QWIDGETRESIZEHANDLER_P_H |