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RootNode Class Reference

#include <rootnode.h>

Inheritance diagram for RootNode:

Public Member Functions

CometsItemcometsItem ()
void genCachedTextures ()
QSGTexturegetCachedTexture (int size, char spType)
LabelsItemlabelsItem ()
StarItemstarItem ()
TelescopeSymbolsItemtelescopeSymbolsItem ()
void testLeakAdd ()
void testLeakDelete ()
void update (bool clearTextures=false)
void updateClipPoly ()
- Public Member Functions inherited from QSGClipNode
QRectF clipRect () const const
bool isRectangular () const const
void setClipRect (const QRectF &rect)
void setIsRectangular (bool rectHint)
- Public Member Functions inherited from QSGBasicGeometryNode
QSGGeometrygeometry ()
const QSGGeometrygeometry () const const
void setGeometry (QSGGeometry *geometry)
- Public Member Functions inherited from QSGNode
void appendChildNode (QSGNode *node)
QSGNodechildAtIndex (int i) const const
int childCount () const const
QSGNodefirstChild () const const
QSGNode::Flags flags () const const
void insertChildNodeAfter (QSGNode *node, QSGNode *after)
void insertChildNodeBefore (QSGNode *node, QSGNode *before)
virtual bool isSubtreeBlocked () const const
QSGNodelastChild () const const
void markDirty (QSGNode::DirtyState bits)
QSGNodenextSibling () const const
QSGNodeparent () const const
void prependChildNode (QSGNode *node)
virtual void preprocess ()
QSGNodepreviousSibling () const const
void removeAllChildNodes ()
void removeChildNode (QSGNode *node)
void setFlag (QSGNode::Flag f, bool enabled)
void setFlags (QSGNode::Flags f, bool enabled)
QSGNode::NodeType type () const const

Additional Inherited Members

- Public Types inherited from QSGNode
enum  DirtyStateBit
enum  Flag
enum  NodeType
- Public Attributes inherited from QSGNode
typedef DirtyState
typedef Flags

Detailed Description

A container for nodes that holds collection of textures for stars and provides clipping.

A QSGClipNode derived class used as a container for holding pointers to nodes and for clipping. Upon construction RootNode generates all textures that are used by PointNode.

KStars Lite has the following hierarchy:

  1. RootNode - the parent of all nodes that also acts as a clipping node
  2. SkyItem derived nodes that acts like SkyComponent in regular KStars
  3. SkyNode derived nodes that represent SkyObjects (similar to SkyComponent::draw())
  4. Simple nodes like EllipseNode or PointNode that draw basic geometry and stars
Artem Fedoskin

Definition at line 59 of file rootnode.h.

Member Function Documentation

◆ genCachedTextures()

void RootNode::genCachedTextures ( )

initializes textureCache with cached images of stars from SkyMapLite

Definition at line 165 of file rootnode.cpp.

◆ getCachedTexture()

QSGTexture * RootNode::getCachedTexture ( int  size,
char  spType 

returns cached texture from textureCache

sizesize of the star
spTypespectral class
cached QSGTexture from textureCache

Definition at line 185 of file rootnode.cpp.

◆ testLeakDelete()

void RootNode::testLeakDelete ( )

Debug functions.

Definition at line 127 of file rootnode.cpp.

◆ update()

void RootNode::update ( bool  clearTextures = false)

update positions of all child SkyItems

clearTexturestrue if textures for PointNodes should recreated (required when color scheme is changed)

Definition at line 216 of file rootnode.cpp.

◆ updateClipPoly()

void RootNode::updateClipPoly ( )

triangulates and sets new clipping polygon provided by Projection system

Definition at line 190 of file rootnode.cpp.

The documentation for this class was generated from the following files:
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