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Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
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Qt
Internal/Contributor docs for the Qt SDK. Note: These are NOT official API docs; those are found at https://doc.qt.io/
|
The QSGTransformNode class implements transformations in the scene graph. More...
#include <qsgnode.h>
Inheritance diagram for QSGTransformNode: Collaboration diagram for QSGTransformNode:Public Member Functions | |
| QSGTransformNode () | |
| Create a new QSGTransformNode with its matrix set to the identity matrix. | |
| ~QSGTransformNode () override | |
| Deletes this transform node. | |
| void | setMatrix (const QMatrix4x4 &matrix) |
| Sets this transform node's matrix to matrix. | |
| const QMatrix4x4 & | matrix () const |
| Returns this transform node's matrix. | |
| void | setCombinedMatrix (const QMatrix4x4 &matrix) |
| Sets the combined matrix of this matrix to transform. | |
| const QMatrix4x4 & | combinedMatrix () const |
| Set during rendering to the combination of all parent matrices for that rendering pass. | |
| Public Member Functions inherited from QSGNode | |
| QSGNode () | |
| Constructs a new node. | |
| virtual | ~QSGNode () |
| Destroys the node. | |
| QSGNode * | parent () const |
| Returns the parent node of this node. | |
| void | removeChildNode (QSGNode *node) |
| Removes node from this node's list of children. | |
| void | removeAllChildNodes () |
| Removes all child nodes from this node's list of children. | |
| void | prependChildNode (QSGNode *node) |
| Prepends node to this node's the list of children. | |
| void | appendChildNode (QSGNode *node) |
| Appends node to this node's list of children. | |
| void | insertChildNodeBefore (QSGNode *node, QSGNode *before) |
| Inserts node to this node's list of children before the node specified with before. | |
| void | insertChildNodeAfter (QSGNode *node, QSGNode *after) |
| Inserts node to this node's list of children after the node specified with after. | |
| void | reparentChildNodesTo (QSGNode *newParent) |
| int | childCount () const |
| Returns the number of child nodes. | |
| QSGNode * | childAtIndex (int i) const |
| Returns the child at index i. | |
| QSGNode * | firstChild () const |
| Returns the first child of this node. | |
| QSGNode * | lastChild () const |
| Returns the last child of this node. | |
| QSGNode * | nextSibling () const |
| Returns the node after this in the parent's list of children. | |
| QSGNode * | previousSibling () const |
| Returns the node before this in the parent's list of children. | |
| NodeType | type () const |
| Returns the type of this node. | |
| QT_DEPRECATED void | clearDirty () |
| void | markDirty (DirtyState bits) |
| Notifies all connected renderers that the node has dirty bits. | |
| QT_DEPRECATED DirtyState | dirtyState () const |
| virtual bool | isSubtreeBlocked () const |
| Returns whether this node and its subtree is available for use. | |
| Flags | flags () const |
| Returns the set of flags for this node. | |
| void | setFlag (Flag, bool=true) |
| Sets the flag f on this node if enabled is true; otherwise clears the flag. | |
| void | setFlags (Flags, bool=true) |
| Sets the flags f on this node if enabled is true; otherwise clears the flags. | |
| virtual void | preprocess () |
| Override this function to do processing on the node before it is rendered. | |
Additional Inherited Members | |
| Public Types inherited from QSGNode | |
| enum | NodeType { BasicNodeType , GeometryNodeType , TransformNodeType , ClipNodeType , OpacityNodeType , RootNodeType , RenderNodeType } |
| Can be used to figure out the type of node. More... | |
| enum | Flag { OwnedByParent = 0x0001 , UsePreprocess = 0x0002 , OwnsGeometry = 0x00010000 , OwnsMaterial = 0x00020000 , OwnsOpaqueMaterial = 0x00040000 , IsVisitableNode = 0x01000000 } |
| The QSGNode::Flag enum describes flags on the QSGNode. More... | |
| enum | DirtyStateBit { DirtySubtreeBlocked = 0x0080 , DirtyMatrix = 0x0100 , DirtyNodeAdded = 0x0400 , DirtyNodeRemoved = 0x0800 , DirtyGeometry = 0x1000 , DirtyMaterial = 0x2000 , DirtyOpacity = 0x4000 , DirtyForceUpdate = 0x8000 , DirtyUsePreprocess = UsePreprocess , DirtyPropagationMask } |
| Used in QSGNode::markDirty() to indicate how the scene graph has changed. More... | |
| Protected Member Functions inherited from QSGNode | |
| QSGNode (NodeType type) | |
| Constructs a new node with the given node type. | |
| QSGNode (QSGNodePrivate &dd, NodeType type) | |
| Constructs a new node with the given node type. | |
| Protected Attributes inherited from QSGNode | |
| QScopedPointer< QSGNodePrivate > | d_ptr |
The QSGTransformNode class implements transformations in the scene graph.
\inmodule QtQuick
Transformations apply the node's subtree and can be nested. Multiple transform nodes will be accumulated by intersecting all their matrices. The accumulation happens as part of the rendering.
The transform nodes implement a 4x4 matrix which in theory supports full 3D transformations. However, because the renderer optimizes for 2D use-cases rather than 3D use-cases, rendering a scene with full 3D transformations needs to be done with some care.
| QSGTransformNode::QSGTransformNode | ( | ) |
Create a new QSGTransformNode with its matrix set to the identity matrix.
Definition at line 1131 of file qsgnode.cpp.
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override |
Deletes this transform node.
Definition at line 1142 of file qsgnode.cpp.
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inline |
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inline |
| void QSGTransformNode::setCombinedMatrix | ( | const QMatrix4x4 & | matrix | ) |
Sets the combined matrix of this matrix to transform.
This function is meant to be called by the node preprocessing prior to rendering the tree, so it will not mark the tree as dirty.
Definition at line 1186 of file qsgnode.cpp.
| void QSGTransformNode::setMatrix | ( | const QMatrix4x4 & | matrix | ) |
Sets this transform node's matrix to matrix.
Definition at line 1160 of file qsgnode.cpp.
1.12.0