--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/tools/designer/src/lib/shared/qdesigner_propertycommand_p.h Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,301 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@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 QDESIGNER_PROPERTYCOMMAND_H
+#define QDESIGNER_PROPERTYCOMMAND_H
+
+#include "qdesigner_formwindowcommand_p.h"
+
+#include <QtCore/QVariant>
+#include <QtCore/QList>
+#include <QtCore/QPair>
+
+QT_BEGIN_NAMESPACE
+
+class QDesignerFormWindowInterface;
+class QDesignerPropertySheetExtension;
+
+namespace qdesigner_internal {
+
+class QDesignerIntegration;
+
+enum SpecialProperty {
+ SP_None, SP_ObjectName, SP_LayoutName, SP_SpacerName,SP_WindowTitle,
+ SP_MinimumSize, SP_MaximumSize, SP_Geometry, SP_Icon, SP_CurrentTabName, SP_CurrentItemName, SP_CurrentPageName,
+ SP_AutoDefault, SP_Alignment, SP_Shortcut, SP_Orientation
+};
+
+//Determine special property
+enum SpecialProperty getSpecialProperty(const QString& propertyName);
+
+
+// A helper class for applying properties to objects.
+// Can be used for Set commands (setValue(), restoreOldValue()) or
+// Reset Commands restoreDefaultValue(), restoreOldValue()).
+class PropertyHelper {
+public:
+ // A pair of Value and changed flag
+ typedef QPair<QVariant, bool> Value;
+
+ enum ObjectType {OT_Object, OT_FreeAction, OT_AssociatedAction, OT_Widget};
+
+ PropertyHelper(QObject* object,
+ SpecialProperty specialProperty,
+ QDesignerPropertySheetExtension *sheet,
+ int index);
+
+ QObject *object() const { return m_object; }
+ SpecialProperty specialProperty() const { return m_specialProperty; }
+ // set a new value
+ Value setValue(QDesignerFormWindowInterface *fw, const QVariant &value, bool changed, unsigned subPropertyMask);
+
+ // restore old value
+ Value restoreOldValue(QDesignerFormWindowInterface *fw);
+ // set default value
+ Value restoreDefaultValue(QDesignerFormWindowInterface *fw);
+
+ inline QVariant oldValue() const
+ { return m_oldValue.first; }
+
+ inline void setOldValue(const QVariant &oldValue)
+ { m_oldValue.first = oldValue; }
+
+ // required updates for this property (bit mask)
+ enum UpdateMask { UpdatePropertyEditor=1, UpdateObjectInspector=2 };
+ unsigned updateMask() const;
+
+ // can be merged into one command (that is, object and name match)
+ bool canMerge(const PropertyHelper &other) const;
+ QDesignerIntegration *integration(QDesignerFormWindowInterface *fw) const;
+
+ static void triggerActionChanged(QAction *a);
+
+private:
+ // Apply the value and update. Returns corrected value
+ Value applyValue(QDesignerFormWindowInterface *fw, const QVariant &oldValue, Value newValue);
+
+ static void checkApplyWidgetValue(QDesignerFormWindowInterface *fw, QWidget* w,
+ SpecialProperty specialProperty, QVariant &v);
+
+ void updateObject(QDesignerFormWindowInterface *fw, const QVariant &oldValue, const QVariant &newValue);
+ QVariant findDefaultValue(QDesignerFormWindowInterface *fw) const;
+ void ensureUniqueObjectName(QDesignerFormWindowInterface *fw, QObject *object) const;
+ SpecialProperty m_specialProperty;
+
+ QPointer<QObject> m_object;
+ ObjectType m_objectType;
+ QPointer<QWidget> m_parentWidget;
+
+ QDesignerPropertySheetExtension *m_propertySheet;
+ int m_index;
+
+ Value m_oldValue;
+};
+
+// Base class for commands that can be applied to several widgets
+
+class QDESIGNER_SHARED_EXPORT PropertyListCommand : public QDesignerFormWindowCommand {
+public:
+ typedef QList<QObject *> ObjectList;
+
+ explicit PropertyListCommand(QDesignerFormWindowInterface *formWindow);
+
+ QObject* object(int index = 0) const;
+
+ QVariant oldValue(int index = 0) const;
+
+ void setOldValue(const QVariant &oldValue, int index = 0);
+
+ // Calls restoreDefaultValue() and update()
+ virtual void undo();
+
+protected:
+ typedef QList<PropertyHelper> PropertyHelperList;
+
+
+ // add an object
+ bool add(QObject *object, const QString &propertyName);
+
+ // Init from a list and make sure referenceObject is added first to obtain the right property group
+ bool initList(const ObjectList &list, const QString &apropertyName, QObject *referenceObject = 0);
+
+ // set a new value, return update mask
+ unsigned setValue(QVariant value, bool changed, unsigned subPropertyMask);
+
+ // restore old value, return update mask
+ unsigned restoreOldValue();
+ // set default value, return update mask
+ unsigned restoreDefaultValue();
+
+ // update designer
+ void update(unsigned updateMask);
+
+ // check if lists are aequivalent for command merging (same widgets and props)
+ bool canMergeLists(const PropertyHelperList& other) const;
+
+ PropertyHelperList& propertyHelperList() { return m_propertyHelperList; }
+ const PropertyHelperList& propertyHelperList() const { return m_propertyHelperList; }
+
+ const QString propertyName() const;
+ SpecialProperty specialProperty() const;
+
+ // Helper struct describing a property used for checking whether
+ // properties of different widgets are equivalent
+ struct PropertyDescription {
+ public:
+ PropertyDescription();
+ PropertyDescription(const QString &propertyName, QDesignerPropertySheetExtension *propertySheet, int index);
+ bool equals(const PropertyDescription &p) const;
+ void debug() const;
+
+ QString m_propertyName;
+ QString m_propertyGroup;
+ QVariant::Type m_propertyType;
+ SpecialProperty m_specialProperty;
+ };
+ const PropertyDescription &propertyDescription() const { return m_propertyDescription; }
+
+private:
+ PropertyDescription m_propertyDescription;
+ PropertyHelperList m_propertyHelperList;
+};
+
+class QDESIGNER_SHARED_EXPORT SetPropertyCommand: public PropertyListCommand
+{
+
+public:
+ typedef QList<QObject *> ObjectList;
+
+ explicit SetPropertyCommand(QDesignerFormWindowInterface *formWindow);
+
+ bool init(QObject *object, const QString &propertyName, const QVariant &newValue);
+ bool init(const ObjectList &list, const QString &propertyName, const QVariant &newValue,
+ QObject *referenceObject = 0, bool enableSubPropertyHandling = true);
+
+
+ inline QVariant newValue() const
+ { return m_newValue; }
+
+ inline void setNewValue(const QVariant &newValue)
+ { m_newValue = newValue; }
+
+ int id() const;
+ bool mergeWith(const QUndoCommand *other);
+
+ virtual void redo();
+private:
+ unsigned subPropertyMask(const QVariant &newValue, QObject *referenceObject);
+ void setDescription();
+ QVariant m_newValue;
+ unsigned m_subPropertyMask;
+};
+
+class QDESIGNER_SHARED_EXPORT ResetPropertyCommand: public PropertyListCommand
+{
+
+public:
+ typedef QList<QObject *> ObjectList;
+
+ explicit ResetPropertyCommand(QDesignerFormWindowInterface *formWindow);
+
+ bool init(QObject *object, const QString &propertyName);
+ bool init(const ObjectList &list, const QString &propertyName, QObject *referenceObject = 0);
+
+ virtual void redo();
+
+protected:
+ virtual bool mergeWith(const QUndoCommand *) { return false; }
+
+private:
+ void setDescription();
+ QString m_propertyName;
+};
+
+
+class QDESIGNER_SHARED_EXPORT AddDynamicPropertyCommand: public QDesignerFormWindowCommand
+{
+
+public:
+ explicit AddDynamicPropertyCommand(QDesignerFormWindowInterface *formWindow);
+
+ bool init(const QList<QObject *> &selection, QObject *current, const QString &propertyName, const QVariant &value);
+
+ virtual void redo();
+ virtual void undo();
+private:
+ void setDescription();
+ QString m_propertyName;
+ QList<QObject *> m_selection;
+ QVariant m_value;
+};
+
+class QDESIGNER_SHARED_EXPORT RemoveDynamicPropertyCommand: public QDesignerFormWindowCommand
+{
+
+public:
+ explicit RemoveDynamicPropertyCommand(QDesignerFormWindowInterface *formWindow);
+
+ bool init(const QList<QObject *> &selection, QObject *current, const QString &propertyName);
+
+ virtual void redo();
+ virtual void undo();
+private:
+ void setDescription();
+ QString m_propertyName;
+ QMap<QObject *, QPair<QVariant, bool> > m_objectToValueAndChanged;
+};
+
+} // namespace qdesigner_internal
+
+QT_END_NAMESPACE
+
+#endif // QDESIGNER_PROPERTYCOMMAND_H