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Diffstat (limited to 'tools/designer/src/lib/shared/layout_p.h')
-rw-r--r-- | tools/designer/src/lib/shared/layout_p.h | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/tools/designer/src/lib/shared/layout_p.h b/tools/designer/src/lib/shared/layout_p.h new file mode 100644 index 0000000..8396876 --- /dev/null +++ b/tools/designer/src/lib/shared/layout_p.h @@ -0,0 +1,152 @@ +/**************************************************************************** +** +** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the Qt Designer of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the either Technology Preview License Agreement or the +** Beta Release License Agreement. +** +** GNU Lesser General Public License Usage +** Alternatively, 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 1.0, 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. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** $QT_END_LICENSE$ +** +****************************************************************************/ + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists for the convenience +// of Qt Designer. This header +// file may change from version to version without notice, or even be removed. +// +// We mean it. +// + +#ifndef LAYOUT_H +#define LAYOUT_H + +#include "shared_global_p.h" +#include "layoutinfo_p.h" + +#include <QtCore/QPointer> +#include <QtCore/QObject> +#include <QtCore/QMap> +#include <QtCore/QHash> + +#include <QtGui/QLayout> +#include <QtGui/QGridLayout> +#include <QtGui/QWidget> + +QT_BEGIN_NAMESPACE + +class QDesignerFormWindowInterface; + +namespace qdesigner_internal { +class QDESIGNER_SHARED_EXPORT Layout : public QObject +{ + Q_OBJECT + Q_DISABLE_COPY(Layout) +protected: + Layout(const QWidgetList &wl, QWidget *p, QDesignerFormWindowInterface *fw, QWidget *lb, LayoutInfo::Type layoutType); + +public: + static Layout* createLayout(const QWidgetList &widgets, QWidget *parentWidget, + QDesignerFormWindowInterface *fw, + QWidget *layoutBase, LayoutInfo::Type layoutType); + + virtual ~Layout(); + + virtual void sort() = 0; + virtual void doLayout() = 0; + + virtual void setup(); + virtual void undoLayout(); + virtual void breakLayout(); + + const QWidgetList &widgets() const { return m_widgets; } + QWidget *parentWidget() const { return m_parentWidget; } + QWidget *layoutBaseWidget() const { return m_layoutBase; } + + /* Determines whether instances of QLayoutWidget are unmanaged/hidden + * after breaking a layout. Default is true. Can be turned off when + * morphing */ + bool reparentLayoutWidget() const { return m_reparentLayoutWidget; } + void setReparentLayoutWidget(bool v) { m_reparentLayoutWidget = v; } + +protected: + virtual void finishLayout(bool needMove, QLayout *layout = 0); + virtual bool prepareLayout(bool &needMove, bool &needReparent); + + void setWidgets(const QWidgetList &widgets) { m_widgets = widgets; } + QLayout *createLayout(int type); + void reparentToLayoutBase(QWidget *w); + +private slots: + void widgetDestroyed(); + +private: + QWidgetList m_widgets; + QWidget *m_parentWidget; + typedef QHash<QWidget *, QRect> WidgetGeometryHash; + WidgetGeometryHash m_geometries; + QWidget *m_layoutBase; + QDesignerFormWindowInterface *m_formWindow; + const LayoutInfo::Type m_layoutType; + QPoint m_startPoint; + QRect m_oldGeometry; + + bool m_reparentLayoutWidget; + const bool m_isBreak; +}; + +namespace Utils +{ + +inline int indexOfWidget(QLayout *layout, QWidget *widget) +{ + int index = 0; + while (QLayoutItem *item = layout->itemAt(index)) { + if (item->widget() == widget) + return index; + + ++index; + } + + return -1; +} + +} // namespace Utils + +} // namespace qdesigner_internal + +QT_END_NAMESPACE + +#endif // LAYOUT_H |