Public Member Functions
void	SetRenderTarget (TextureEntity *pEntity)
	this will internally create the CGDIDC object from the render target texture. More...

TextureEntity *	GetRenderTarget ()

HRESULT	Render ()
	render to the current DC

void	Invalidate (bool bInvalidate=true)
	Invalidate the graphics, causing the entire render target to be redrawn at the next render call.

bool	IsInvalidated ()
	whether it is invalidated

CGDIPen *	GetCurrentPen ()
	get the current pen object More...

void	SetCurrentPen (const CGDIPen &pen)
	set the current pen object More...

CGDIPen *	CreatePen (string name)
	create a new pen object in the pen pools More...

CGDIPen *	GetPen (string name)
	get a new pen object in the pen pools

bool	SaveAs (const char *filename)
	save the current texture to disk file. More...

bool	LoadFromTexture (TextureEntity *pTexture)
	load the texture from a disk image.The current graphics will be reset. More...

TextureEntity *	GetDiskTexture ()
	get the current disk texture. More...

void	Reset ()
	reset to be reused. More...

HRESULT	Clear (const Color &color)
	Clears the current render target of the CGDIGraphics.

HRESULT	DrawLine (const CGDIPen *pen, const Vector3 &point1, const Vector3 &point2)
	Draw a line with a specific pen, the operation is pending If point1=point2, the line will not draw.

HRESULT	DrawLines (const CGDIPen pen, const Vector3 points, int nNumPoints)

HRESULT	DrawImage (GUITextureElement pElement, RECT prcDest, float depth)

HRESULT	DrawPoint (const CGDIPen *pen, const Vector3 &point)
	Draw a point with a specific pen, the operation is pending.

void	Undo (int nStep=1)
	undo a certain amount of steps

void	Redo (int nStep=1)
	redo a certain amount of steps

void	SetClip (const CGDIRegion &region)
	Set the current clipping rectangle for the path.

const CGDIRegion *	GetClip () const

CGDIDC *	LockDC ()

void	UnlockDC ()

HRESULT	RestoreDeviceObjects ()
	This callback function will be called immediately after the Direct3D device has been reset, which will happen after a lost device scenario. More...

HRESULT	InvalidateDeviceObjects ()
	This callback function will be called immediately after the Direct3D device has entered a lost state and before IDirect3DDevice9::Reset is called. More...

Protected Member Functions
HRESULT	CalculatePath (CGDIGraphicsPath &pPath)

Protected Attributes
CGDIDC *	m_pDC
	Calculate the two vertices for one end of a given line. More...

bool	m_bLocked

bool	m_bInvalidated
	if this is true, the graphics will be redrawn at the next render frame

CGDIGraphicsPath	m_path

CGDIRegion	m_region

asset_ptr< TextureEntity >	m_pDiskTexture
	the texture entity that is saved and persistent to disk file. More...

CGDIPen	m_currentPen
	the current pen object

map< string, CGDIPen >	m_pens
	available pens

Member Function Documentation

§ CreatePen()

CGDIPen * CGDIGraphics::CreatePen ( string name )

create a new pen object in the pen pools

Parameters

name

Returns: NULL may be returned if pen is not valid

§ GetCurrentPen()

CGDIPen* ParaEngine::CGDIGraphics::GetCurrentPen ( )

inline

get the current pen object

Returns

§ GetDiskTexture()

TextureEntity * CGDIGraphics::GetDiskTexture ( )

get the current disk texture.

NULL may be returned.

§ InvalidateDeviceObjects()

HRESULT CGDIGraphics::InvalidateDeviceObjects ( )

This callback function will be called immediately after the Direct3D device has entered a lost state and before IDirect3DDevice9::Reset is called.

Resources created in the OnResetDevice callback should be released here, which generally includes all D3DPOOL_DEFAULT resources. See the "Lost Devices" section of the documentation for information about lost devices.

§ LoadFromTexture()

bool CGDIGraphics::LoadFromTexture ( TextureEntity * pTexture )

load the texture from a disk image.The current graphics will be reset.

§ Reset()

void CGDIGraphics::Reset ( )

reset to be reused.

Nothing except the disk texture will be drawn.

§ RestoreDeviceObjects()

HRESULT CGDIGraphics::RestoreDeviceObjects ( )

This callback function will be called immediately after the Direct3D device has been reset, which will happen after a lost device scenario.

This is the best location to create D3DPOOL_DEFAULT resources since these resources need to be reloaded whenever the device is lost. Resources created here should be released in the OnLostDevice callback.

§ SaveAs()

bool CGDIGraphics::SaveAs ( const char * filename )

save the current texture to disk file.

When we saved the current graphics to disk, we will also reset the graphics object to disk.

§ SetCurrentPen()

void ParaEngine::CGDIGraphics::SetCurrentPen ( const CGDIPen & pen )

inline

set the current pen object

Parameters

pen

§ SetRenderTarget()

void CGDIGraphics::SetRenderTarget ( TextureEntity * pEntity )

this will internally create the CGDIDC object from the render target texture.

Member Data Documentation

§ m_pDC

CGDIDC* ParaEngine::CGDIGraphics::m_pDC

protected

Calculate the two vertices for one end of a given line.

Parameters

point1,point2	[in] the first and second point of a line. If the two points are the same, it will be treated as a point. In this case, nState=0 will return zero vertices;
vex1,vex2	[out] the return vertices;
pPen	[in] pointer to the pen used to draw this line.
nState	Specify which cap we like nState=0: no cap, the return vertices are based on the first point, this is for the middle points of a polyline. nState=-1 start cap, the return vertices are the start cap based on the first point; nState=1 end cap, the return vertices are the end cap based on the second point;

§ m_pDiskTexture

asset_ptr<TextureEntity> ParaEngine::CGDIGraphics::m_pDiskTexture

protected

the texture entity that is saved and persistent to disk file.

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

Client/trunk/ParaEngineClient/Engine/Obsoleted/ParaGDI/GDIGraphics.h
Client/trunk/ParaEngineClient/Engine/Obsoleted/ParaGDI/GDIGraphics.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Member Function Documentation

§ CreatePen()

§ GetCurrentPen()

§ GetDiskTexture()

§ InvalidateDeviceObjects()

§ LoadFromTexture()

§ Reset()

§ RestoreDeviceObjects()

§ SaveAs()

§ SetCurrentPen()

§ SetRenderTarget()

Member Data Documentation

§ m_pDC

§ m_pDiskTexture