Virtual Graphic System

Classes
class	VGColor
	Generic class to manipulate device independant colors. More...
class	VGDevice
	Generic platform independant drawing device. More...
class	VGFont
	Generic pure virtual & device-independant font class. More...
class	VGPen
	Generic class to manipulate device independant pens. More...
class	VGSystem
	Generic pure virtual class for manipulating platform independant drawing devices and fonts. More...
Defines
#define	ALPHA_TRANSPARENT   0
#define	ALPHA_OPAQUE   255
Functions
std::ostream &	operator<< (std::ostream &out, const VGColor &c)
VGColor &	operator+= (short v)

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Detailed Description

The virtual graphic system is intended as an abstract layer covering platform dependencies at graphic level. It represents a set of abstract classes covering the basic needs of an application: printing text, drawing to the screen or to an offscreen, etc... The set of abstract classes includes:

• a VGSystem class: to cover allocation of specific VGDevice and VGFont objects.
• a VGDevice class: specialized on drawing onscreen of offscreen
• a VGFont class: to cover fonts management

This set of classes is implemented for different target platforms: implementations are provided for Windows GDI and Mac OSX Quartz, implementations for Windows GDI+, OpenGL and Linux GTK are in progress.

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Define Documentation

#define ALPHA_TRANSPARENT   0

#define ALPHA_OPAQUE   255

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Function Documentation

std::ostream& operator<<	(	std::ostream &	out,
		const VGColor &	c
	)		[inline]

VGColor & operator+=

(

short

v )

[inline, inherited]

References VGColor::mBlue, VGColor::mGreen, and VGColor::mRed.