QSGImageNode Class
The QSGImageNode class is provided for convenience to easily draw textured content using the QML scene graph. More...
Header: | #include <QSGImageNode> |
qmake: | QT += quick |
Since: | Qt 5.8 |
Inherits: | QSGGeometryNode |
Public Types
enum | TextureCoordinatesTransformFlag { NoTransform, MirrorHorizontally, MirrorVertically } |
flags | TextureCoordinatesTransformMode |
Public Functions
virtual | ~QSGImageNode() override |
virtual QSGTexture::Filtering | filtering() const = 0 |
virtual QSGTexture::Filtering | mipmapFiltering() const = 0 |
virtual bool | ownsTexture() const = 0 |
virtual QRectF | rect() const = 0 |
virtual void | setFiltering(QSGTexture::Filtering filtering) = 0 |
virtual void | setMipmapFiltering(QSGTexture::Filtering filtering) = 0 |
virtual void | setOwnsTexture(bool owns) = 0 |
virtual void | setRect(const QRectF &rect) = 0 |
void | setRect(qreal x, qreal y, qreal w, qreal h) |
virtual void | setSourceRect(const QRectF &r) = 0 |
void | setSourceRect(qreal x, qreal y, qreal w, qreal h) |
virtual void | setTexture(QSGTexture *texture) = 0 |
virtual void | setTextureCoordinatesTransform(QSGImageNode::TextureCoordinatesTransformMode mode) = 0 |
virtual QRectF | sourceRect() const = 0 |
virtual QSGTexture * | texture() const = 0 |
virtual QSGImageNode::TextureCoordinatesTransformMode | textureCoordinatesTransform() const = 0 |
- 6 public functions inherited from QSGGeometryNode
- 7 public functions inherited from QSGBasicGeometryNode
- 22 public functions inherited from QSGNode
Static Public Members
void | rebuildGeometry(QSGGeometry *g, QSGTexture *texture, const QRectF &rect, QRectF sourceRect, QSGImageNode::TextureCoordinatesTransformMode texCoordMode) |
Detailed Description
The QSGImageNode class is provided for convenience to easily draw textured content using the QML scene graph.
Warning: The image node class must have a texture before being added to the scene graph to be rendered.
Member Type Documentation
enum QSGImageNode::TextureCoordinatesTransformFlag
flags QSGImageNode::TextureCoordinatesTransformMode
The TextureCoordinatesTransformFlag enum is used to specify the mode used to generate texture coordinates for a textured quad.
Constant | Value | Description |
---|---|---|
QSGImageNode::NoTransform | 0x00 | Texture coordinates are oriented with window coordinates i.e. with origin at top-left. |
QSGImageNode::MirrorHorizontally | 0x01 | Texture coordinates are inverted in the horizontal axis with respect to window coordinates |
QSGImageNode::MirrorVertically | 0x02 | Texture coordinates are inverted in the vertical axis with respect to window coordinates |
The TextureCoordinatesTransformMode type is a typedef for QFlags<TextureCoordinatesTransformFlag>. It stores an OR combination of TextureCoordinatesTransformFlag values.
Member Function Documentation
[override virtual]
QSGImageNode::~QSGImageNode()
Destroys the instance of QSGImageNode. The destructor is virtual.
[pure virtual]
QSGTexture::Filtering QSGImageNode::filtering() const
See also setFiltering().
[pure virtual]
QSGTexture::Filtering QSGImageNode::mipmapFiltering() const
See also setMipmapFiltering().
[pure virtual]
bool QSGImageNode::ownsTexture() const
See also setOwnsTexture().
[static]
void QSGImageNode::rebuildGeometry(QSGGeometry *g, QSGTexture *texture, const QRectF &rect, QRectF sourceRect, QSGImageNode::TextureCoordinatesTransformMode texCoordMode)
Updates the geometry g with the texture, the coordinates in rect, and the texture coordinates from sourceRect.
g is assumed to be a triangle strip of four vertices of type QSGGeometry::TexturedPoint2D.
texCoordMode is used for normalizing the sourceRect.
[pure virtual]
QRectF QSGImageNode::rect() const
See also setRect().
[pure virtual]
void QSGImageNode::setFiltering(QSGTexture::Filtering filtering)
See also filtering().
[pure virtual]
void QSGImageNode::setMipmapFiltering(QSGTexture::Filtering filtering)
See also mipmapFiltering().
[pure virtual]
void QSGImageNode::setOwnsTexture(bool owns)
See also ownsTexture().
[pure virtual]
void QSGImageNode::setRect(const QRectF &rect)
See also rect().
void QSGImageNode::setRect(qreal x, qreal y, qreal w, qreal h)
[pure virtual]
void QSGImageNode::setSourceRect(const QRectF &r)
See also sourceRect().
void QSGImageNode::setSourceRect(qreal x, qreal y, qreal w, qreal h)
[pure virtual]
void QSGImageNode::setTexture(QSGTexture *texture)
See also texture().
[pure virtual]
void QSGImageNode::setTextureCoordinatesTransform(QSGImageNode::TextureCoordinatesTransformMode mode)
See also textureCoordinatesTransform().
[pure virtual]
QRectF QSGImageNode::sourceRect() const
See also setSourceRect().
[pure virtual]
QSGTexture *QSGImageNode::texture() const
See also setTexture().
[pure virtual]
QSGImageNode::TextureCoordinatesTransformMode QSGImageNode::textureCoordinatesTransform() const
See also setTextureCoordinatesTransform().