The QSGSimpleTextureNode class is provided for convenience to easily draw textured content using the QML scene graph. 更多...
| 头： | #include <QSGSimpleTextureNode> |
| qmake: | QT += quick |
| 继承： | QSGGeometryNode |
该类已过时。 提供它是为使旧源代码能继续工作。强烈建议不要在新代码中使用它。
| enum | TextureCoordinatesTransformFlag { NoTransform, MirrorHorizontally, MirrorVertically } |
| flags | TextureCoordinatesTransformMode |
| QSGSimpleTextureNode () | |
| ~QSGSimpleTextureNode () | |
| QSGTexture::Filtering | filtering () const |
| bool | ownsTexture () const |
| QRectF | rect () const |
| void | setFiltering (QSGTexture::Filtering filtering ) |
| void | setOwnsTexture (bool owns ) |
| void | setRect (const QRectF & r ) |
| void | setRect (qreal x , qreal y , qreal w , qreal h ) |
| void | setSourceRect (const QRectF & r ) |
| void | setSourceRect (qreal x , qreal y , qreal w , qreal h ) |
| void | setTexture (QSGTexture * texture ) |
| void | setTextureCoordinatesTransform (TextureCoordinatesTransformMode mode ) |
| QRectF | sourceRect () const |
| QSGTexture * | texture () const |
| TextureCoordinatesTransformMode | textureCoordinatesTransform () const |
The QSGSimpleTextureNode class is provided for convenience to easily draw textured content using the QML scene graph.
警告： The simple texture node class must have a texture before being added to the scene graph to be rendered.
警告： This utility class is only functional when running with the OpenGL or software backends of the Qt Quick scenegraph. For a proper cross-platform alternative prefer using QSGImageNode 凭借 QQuickWindow::createImageNode () 或 QSGEngine::createImageNode ().
The TextureCoordinatesTransformFlag enum is used to specify the mode used to generate texture coordinates for a textured quad.
| 常量 | 值 | 描述 |
|---|---|---|
QSGSimpleTextureNode::NoTransform
|
0x00
|
Texture coordinates are oriented with window coordinates i.e. with origin at top-left. |
QSGSimpleTextureNode::MirrorHorizontally
|
0x01
|
Texture coordinates are inverted in the horizontal axis with respect to window coordinates |
QSGSimpleTextureNode::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.
Constructs a new simple texture node
Destroys the texture node
Returns the filtering currently set on this texture node
另请参阅 setFiltering ().
返回
true
if the node takes ownership of the texture; otherwise returns
false
.
该函数在 Qt 5.4 引入。
另请参阅 setOwnsTexture ().
Returns the target rect of this texture node.
另请参阅 setRect ().
Sets the filtering to be used for this texture node to filtering .
For smooth scaling, use QSGTexture::Linear ; for normal scaling, use QSGTexture::Nearest .
另请参阅 filtering ().
Sets whether the node takes ownership of the texture to owns .
By default, the node does not take ownership of the texture.
该函数在 Qt 5.4 引入。
另请参阅 ownsTexture () 和 setTexture ().
Sets the target rect of this texture node to r .
另请参阅 rect ().
这是重载函数。
Sets the rectangle of this texture node to begin at ( x , y ) and have width w 和高度 h .
Sets the source rect of this texture node to r .
该函数在 Qt 5.5 引入。
另请参阅 sourceRect ().
这是重载函数。
Sets the rectangle of this texture node to show its texture from ( x , y ) and have width w 和高度 h relatively to the QSGTexture::textureSize .
该函数在 Qt 5.5 引入。
Sets the texture of this texture node to texture .
使用 setOwnsTexture () to set whether the node should take ownership of the texture. By default, the node does not take ownership.
警告： A texture node must have a texture before being added to the scenegraph to be rendered.
另请参阅 texture ().
Sets the method used to generate texture coordinates to mode . This can be used to obtain correct orientation of the texture. This is commonly needed when using a third party OpenGL library to render to texture as OpenGL has an inverted y-axis relative to Qt Quick.
另请参阅 textureCoordinatesTransform ().
Returns the source rect of this texture node.
该函数在 Qt 5.5 引入。
另请参阅 setSourceRect ().
Returns the texture for this texture node
另请参阅 setTexture ().
Returns the mode used to generate texture coordinates for this node.
另请参阅 setTextureCoordinatesTransform ().
