NAME¶

ColorData, GSData, MobilityData, MoveData, VoidData - Data subclassesfor storing common undo information

SYNOPSIS¶

#include <Unidraw/Commands/datas.h>

DESCRIPTION¶

The Unidraw library predefines several Data subclasses for storingcommon undo information: ColorData stores two PSColors (usuallyrepresenting foreground and background colors), while GSData stores acomplete set of graphics state in a FullGraphic object. MobilityDatastores the mobility and graphics state information needed to undo achange in mobility. MoveData stores a horizontal and verticaldistance. VoidData stores a void pointer as a useful alternative toderiving trivially from Data just to store one word of information.

COLORDATAPUBLICOPERATIONS¶

ColorData(PSColor*, PSColor*)

Create a ColorData instance, supplying the PSColor objects it stores.

GSDATAPUBLICOPERATIONS¶

GSData(Graphic*)

Create a GSData instance, supplying the Graphic object from which tocopy a complete set of graphics state. The GSData constructor copiesthis information into its _gs member, from whence it can be retrieved later.

MOBILITYDATAPUBLICOPERATIONS¶

MobilityData(Mobility, Graphic*)

Create a MobilityData instance, supplying the mobility and a Graphicobject from which to copy a complete set of graphics state. TheMobilityData constructor copies the graphic into its _gs member, from whence it can be retrieved later.

MOVEDATAPUBLICOPERATIONS¶

MoveData(float, float)

Create a MoveData instance, supplying two floating point numbers thatnormally represent horizontal and vertical movement.

VOIDDATAPUBLICOPERATIONS¶

VoidData(void*)

Create a VoidData instance, supplying a pointer to an object ofunknown type.

SEEALSO¶

Data(3U), Graphic(3U), globals(3U)