彻底改版2.0
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feiyangqingyun
135
third/designer/lib/shared/qdesigner_toolbar_p.h
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135
third/designer/lib/shared/qdesigner_toolbar_p.h
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/****************************************************************************
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**
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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** This file is part of the Qt Designer of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial Usage
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at qt-info@nokia.com.
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists for the convenience
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// of Qt Designer. This header
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// file may change from version to version without notice, or even be removed.
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//
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// We mean it.
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//
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#ifndef QDESIGNER_TOOLBAR_H
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#define QDESIGNER_TOOLBAR_H
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#include "shared_global_p.h"
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#include <QtGui/QAction>
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#include <QtGui/QToolButton>
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#include <QtCore/QList>
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#include <QtCore/QPoint>
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QT_BEGIN_NAMESPACE
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class QDesignerFormWindowInterface;
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class QToolBar;
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class QRect;
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class QAction;
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namespace qdesigner_internal {
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class PromotionTaskMenu;
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// Special event filter for tool bars in designer.
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// Handles drag and drop to and from. Ensures that each
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// child widget is WA_TransparentForMouseEvents to enable drag and drop.
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class QDESIGNER_SHARED_EXPORT ToolBarEventFilter : public QObject {
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Q_OBJECT
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public:
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static void install(QToolBar *tb);
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// Find action by position. Note that QToolBar::actionAt() will
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// not work as designer sets WA_TransparentForMouseEvents on its tool bar buttons
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// to be able to drag them. This function will return the dummy
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// sentinel action when applied to tool bars created by designer if the position matches.
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static QAction *actionAt(const QToolBar *tb, const QPoint &pos);
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static bool withinHandleArea(const QToolBar *tb, const QPoint &pos);
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static QRect handleArea(const QToolBar *tb);
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static QRect freeArea(const QToolBar *tb);
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// Utility to create an action
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static QAction *createAction(QDesignerFormWindowInterface *fw, const QString &objectName, bool separator);
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virtual bool eventFilter (QObject *watched, QEvent *event);
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// Helper for task menu extension
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QList<QAction *> contextMenuActions(const QPoint &globalPos = QPoint(-1, -1));
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static ToolBarEventFilter *eventFilterOf(const QToolBar *tb);
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private slots:
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void slotRemoveSelectedAction();
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void slotRemoveToolBar();
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void slotInsertSeparator();
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private:
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explicit ToolBarEventFilter(QToolBar *tb);
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bool handleContextMenuEvent(QContextMenuEvent * event);
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bool handleDragEnterMoveEvent(QDragMoveEvent *event);
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bool handleDragLeaveEvent(QDragLeaveEvent *);
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bool handleDropEvent(QDropEvent *event);
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bool handleMousePressEvent(QMouseEvent *event);
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bool handleMouseReleaseEvent(QMouseEvent *event);
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bool handleMouseMoveEvent(QMouseEvent *event);
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QDesignerFormWindowInterface *formWindow() const;
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void adjustDragIndicator(const QPoint &pos);
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void hideDragIndicator();
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void startDrag(const QPoint &pos, Qt::KeyboardModifiers modifiers);
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bool withinHandleArea(const QPoint &pos) const;
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QToolBar *m_toolBar;
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PromotionTaskMenu *m_promotionTaskMenu;
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QPoint m_startPosition;
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};
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} // namespace qdesigner_internal
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QT_END_NAMESPACE
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#endif // QDESIGNER_TOOLBAR_H
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