1 /****************************************************************************
3 ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
4 ** All rights reserved.
5 ** Contact: Nokia Corporation (qt-info@nokia.com)
7 ** This file is part of the QtDeclarative module of the Qt Toolkit.
9 ** $QT_BEGIN_LICENSE:LGPL$
10 ** GNU Lesser General Public License Usage
11 ** This file may be used under the terms of the GNU Lesser General Public
12 ** License version 2.1 as published by the Free Software Foundation and
13 ** appearing in the file LICENSE.LGPL included in the packaging of this
14 ** file. Please review the following information to ensure the GNU Lesser
15 ** General Public License version 2.1 requirements will be met:
16 ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
18 ** In addition, as a special exception, Nokia gives you certain additional
19 ** rights. These rights are described in the Nokia Qt LGPL Exception
20 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
22 ** GNU General Public License Usage
23 ** Alternatively, this file may be used under the terms of the GNU General
24 ** Public License version 3.0 as published by the Free Software Foundation
25 ** and appearing in the file LICENSE.GPL included in the packaging of this
26 ** file. Please review the following information to ensure the GNU General
27 ** Public License version 3.0 requirements will be met:
28 ** http://www.gnu.org/copyleft/gpl.html.
31 ** Alternatively, this file may be used in accordance with the terms and
32 ** conditions contained in a signed written agreement between you and Nokia.
40 ****************************************************************************/
42 #ifndef DESIGNERSUPPORT_H
43 #define DESIGNERSUPPORT_H
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
57 #include <QtQuick/qtquickglobal.h>
58 #include <QtCore/QtGlobal>
59 #include <QtCore/QHash>
60 #include <QtCore/QRectF>
67 class QQuickShaderEffectTexture;
70 class QDeclarativeContext;
74 class Q_QUICK_EXPORT DesignerSupport
78 TransformOrigin = 0x00000001,
79 Transform = 0x00000002,
80 BasicTransform = 0x00000004,
81 Position = 0x00000008,
87 OpacityValue = 0x00000100,
88 ChildrenChanged = 0x00000200,
89 ChildrenStackingChanged = 0x00000400,
90 ParentChanged = 0x00000800,
95 EffectReference = 0x00008000,
97 HideReference = 0x00020000,
99 TransformUpdateMask = TransformOrigin | Transform | BasicTransform | Position | Size | Canvas,
100 ComplexTransformUpdateMask = Transform | Canvas,
101 ContentUpdateMask = Size | Content | Smooth | Canvas,
102 ChildrenUpdateMask = ChildrenChanged | ChildrenStackingChanged | EffectReference | Canvas
109 void refFromEffectItem(QQuickItem *referencedItem, bool hide = true);
110 void derefFromEffectItem(QQuickItem *referencedItem, bool unhide = true);
112 QImage renderImageForItem(QQuickItem *referencedItem, const QRectF &boundingRect, const QSize &imageSize);
114 static bool isDirty(QQuickItem *referencedItem, DirtyType dirtyType);
115 static void resetDirty(QQuickItem *referencedItem);
117 static QTransform canvasTransform(QQuickItem *referencedItem);
118 static QTransform parentTransform(QQuickItem *referencedItem);
120 static bool isAnchoredTo(QQuickItem *fromItem, QQuickItem *toItem);
121 static bool areChildrenAnchoredTo(QQuickItem *fromItem, QQuickItem *toItem);
122 static bool hasAnchor(QQuickItem *item, const QString &name);
123 static QQuickItem *anchorFillTargetItem(QQuickItem *item);
124 static QQuickItem *anchorCenterInTargetItem(QQuickItem *item);
125 static QPair<QString, QObject*> anchorLineTarget(QQuickItem *item, const QString &name, QDeclarativeContext *context);
126 static void resetAnchor(QQuickItem *item, const QString &name);
129 static QList<QObject*> statesForItem(QQuickItem *item);
131 static bool isComponentComplete(QQuickItem *item);
133 static int borderWidth(QQuickItem *item);
135 static void refreshExpressions(QDeclarativeContext *context);
137 static void setRootItem(QQuickView *view, QQuickItem *item);
139 static bool isValidWidth(QQuickItem *item);
140 static bool isValidHeight(QQuickItem *item);
142 static void updateDirtyNode(QQuickItem *item);
145 QHash<QQuickItem*, QQuickShaderEffectTexture*> m_itemTextureHash;
152 #endif // DESIGNERSUPPORT_H