The QSGSimpleTextureNode class is provided for convenience to easily draw textured content using the QML scene graph. 更多...
| 頭： | #include <QSGSimpleTextureNode> |
| qmake: | QT += quick |
| 繼承： | QSGGeometryNode |
該類已過時。 提供它是為使舊源代碼能繼續工作。強烈建議不要在新代碼中使用它。
| enum | TextureCoordinatesTransformFlag { NoTransform, MirrorHorizontally, MirrorVertically } |
| flags | TextureCoordinatesTransformMode |
| QSGSimpleTextureNode () | |
| virtual | ~QSGSimpleTextureNode () override |
| 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 (QSGSimpleTextureNode::TextureCoordinatesTransformMode mode ) |
| QRectF | sourceRect () const |
| QSGTexture * | texture () const |
| QSGSimpleTextureNode::TextureCoordinatesTransformMode | textureCoordinatesTransform () const |
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 default or software backends of the Qt Quick scenegraph. As an alternative, prefer using QSGImageNode 憑藉 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
[override virtual]
QSGSimpleTextureNode::
~QSGSimpleTextureNode
()
Destroys the texture node
Returns the filtering currently set on this texture node
另請參閱 setFiltering ().
返迴
true
if the node takes ownership of the texture; otherwise returns
false
.
該函數在 Qt 5.4 引入。
另請參閱 setOwnsTexture ().
Returns the target rect of this texture node.
另請參閱 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 .
另請參閱 filtering ().
Sets whether the node takes ownership of the texture to owns .
By default, the node does not take ownership of the texture.
該函數在 Qt 5.4 引入。
另請參閱 ownsTexture () 和 setTexture ().
Sets the target rect of this texture node to r .
另請參閱 rect ().
這是重載函數。
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 .
該函數在 Qt 5.5 引入。
另請參閱 sourceRect ().
這是重載函數。
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 .
該函數在 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.
另請參閱 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.
另請參閱 textureCoordinatesTransform ().
Returns the source rect of this texture node.
該函數在 Qt 5.5 引入。
另請參閱 setSourceRect ().
Returns the texture for this texture node
另請參閱 setTexture ().
Returns the mode used to generate texture coordinates for this node.
另請參閱 setTextureCoordinatesTransform ().