HUndoItemMatrix

Functions

HUndoItemMatrix

~HUndoItemMatrix

void

Undo

void

Redo

int

GetCount

HC_KEY *

GetKey

void

GetKey

float *

GetMatrix

void

GetMatrix

char const *

GetName

Detailed Description

class HUndoItemMatrix : public HUndoItem

HUndoItemMatrix MatrixUndo Item that stores a segment key and its associated matrix.

Public Functions

HUndoItemMatrix(HBaseView *view, int num_items, HC_KEY keys[], float matrices[])

Constructs an HUndoItemMatrix object.

virtual ~HUndoItemMatrix()
virtual void Undo(bool setupOnly = false)

This method restores the transformation matrices applied to the given segments when this undo item was created. Note that it also stores the current modelling matrices before making changes so the item can perform a redo.

Parameters

setupOnly – Pass true if you want to perform the undo without updating the view. The default value is false.

virtual void Redo(bool setupOnly = false)

This method restores the transformation matrices applied to the given segments prior to undo being called.

Parameters

setupOnly – Pass true if you want to perform the redo without updating the view. The default value is false.

inline virtual int GetCount()
Returns

The number of segments referenced by this item.

inline virtual HC_KEY *GetKey()
Returns

The list of item keys that this item records and perform transformations on.

virtual void GetKey(HC_KEY keys[])
inline virtual float *GetMatrix()
Returns

A pointer to the list of item transformation matrices that will be applied to the segment list.

virtual void GetMatrix(float m[])
inline virtual char const *GetName()
Returns

The item type name which is ‘HUndoItemMatrix’.