1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtQuick module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QQUICKIMAGE_P_H 41 #define QQUICKIMAGE_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists purely as an 48 // implementation detail. This header file may change from version to 49 // version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include "qquickimagebase_p.h" 55 #include <QtQuick/qsgtextureprovider.h> 56 57 QT_BEGIN_NAMESPACE 58 59 class QQuickImagePrivate; 60 class Q_QUICK_PRIVATE_EXPORT QQuickImage : public QQuickImageBase 61 { 62 Q_OBJECT 63 64 Q_PROPERTY(FillMode fillMode READ fillMode WRITE setFillMode NOTIFY fillModeChanged) 65 Q_PROPERTY(qreal paintedWidth READ paintedWidth NOTIFY paintedGeometryChanged) 66 Q_PROPERTY(qreal paintedHeight READ paintedHeight NOTIFY paintedGeometryChanged) 67 Q_PROPERTY(HAlignment horizontalAlignment READ horizontalAlignment WRITE setHorizontalAlignment NOTIFY horizontalAlignmentChanged) 68 Q_PROPERTY(VAlignment verticalAlignment READ verticalAlignment WRITE setVerticalAlignment NOTIFY verticalAlignmentChanged) 69 Q_PROPERTY(bool mipmap READ mipmap WRITE setMipmap NOTIFY mipmapChanged REVISION 3) 70 Q_PROPERTY(bool autoTransform READ autoTransform WRITE setAutoTransform NOTIFY autoTransformChanged REVISION 5) 71 Q_PROPERTY(QRectF sourceClipRect READ sourceClipRect WRITE setSourceClipRect RESET resetSourceClipRect NOTIFY sourceClipRectChanged REVISION 15) 72 QML_NAMED_ELEMENT(Image) 73 74 public: 75 QQuickImage(QQuickItem *parent=nullptr); 76 ~QQuickImage(); 77 78 enum HAlignment { AlignLeft = Qt::AlignLeft, 79 AlignRight = Qt::AlignRight, 80 AlignHCenter = Qt::AlignHCenter }; 81 Q_ENUM(HAlignment) 82 enum VAlignment { AlignTop = Qt::AlignTop, 83 AlignBottom = Qt::AlignBottom, 84 AlignVCenter = Qt::AlignVCenter }; 85 Q_ENUM(VAlignment) 86 87 enum FillMode { Stretch, PreserveAspectFit, PreserveAspectCrop, Tile, TileVertically, TileHorizontally, Pad }; 88 Q_ENUM(FillMode) 89 90 FillMode fillMode() const; 91 void setFillMode(FillMode); 92 93 qreal paintedWidth() const; 94 qreal paintedHeight() const; 95 96 QRectF boundingRect() const override; 97 98 HAlignment horizontalAlignment() const; 99 void setHorizontalAlignment(HAlignment align); 100 101 VAlignment verticalAlignment() const; 102 void setVerticalAlignment(VAlignment align); 103 isTextureProvider()104 bool isTextureProvider() const override { return true; } 105 QSGTextureProvider *textureProvider() const override; 106 107 bool mipmap() const; 108 void setMipmap(bool use); 109 emitAutoTransformBaseChanged()110 void emitAutoTransformBaseChanged() override { emit autoTransformChanged(); } 111 112 Q_SIGNALS: 113 void fillModeChanged(); 114 void paintedGeometryChanged(); 115 void horizontalAlignmentChanged(HAlignment alignment); 116 void verticalAlignmentChanged(VAlignment alignment); 117 Q_REVISION(3) void mipmapChanged(bool); 118 Q_REVISION(5) void autoTransformChanged(); 119 120 private Q_SLOTS: 121 void invalidateSceneGraph(); 122 123 protected: 124 QQuickImage(QQuickImagePrivate &dd, QQuickItem *parent); 125 void pixmapChange() override; 126 void updatePaintedGeometry(); 127 void releaseResources() override; 128 129 void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) override; 130 QSGNode *updatePaintNode(QSGNode *, UpdatePaintNodeData *) override; 131 132 private: 133 Q_DISABLE_COPY(QQuickImage) 134 Q_DECLARE_PRIVATE(QQuickImage) 135 }; 136 137 QT_END_NAMESPACE 138 QML_DECLARE_TYPE(QQuickImage) 139 #endif // QQUICKIMAGE_P_H 140