CMXRenderRegion Class Reference

#include <cmxrendr.h>

Inheritance diagram for CMXRenderRegion:

List of all members.

Public Member Functions
	CMXRenderRegion (DocRect ClipRect, Matrix ConvertMatrix, FIXED16 ViewScale)
	Constructor for an CMXOutputFilter object. The object should be initialised before use.
BOOL	AttachDevice (View *ViewToAttach, CNativeDC *DCToAttach, Spread *SpreadToAttach, bool fOwned=false)
BOOL	InitDevice ()
	Initialise the device specific mechanisms for this render region.
virtual void	DrawPathToOutputDevice (Path *PathToRender, PathShape shapePath)
	Output all the commands required to render this path to the CMX file.
BOOL	ExportPath (Path *PathToRender, BOOL DataOnly)
	Output all the commands required to render this path to the CMX file. If this is a compound path, the stroke/fill operators will always be output, regardless of the value of the DataOnly parameter.
BOOL	ExportBevel (NodeBevel *pBevel)
	Contains the custom export code for the bevel node.
BOOL	ExportBevelBegin (NodeBevelBegin *pBevel)
	Stub function to prevent NodeBevelBegin from rendering.
BOOL	ExportShadow (OILBitmap *pBitmap, UINT32 Darkness, DocRect &Bounds)
	Contains the custom export code for the shadow node.
void	GetRenderRegionCaps (RRCaps *pCaps)
	This function allows render regions to admit to what they can and can not render. This allows other areas of the program to come in and help render regions out in some situations, if they are unable to render everything. eg. an OSRenderRegion can not render transparancy.
virtual BOOL	WantsGrids ()
	very little
void	SetAreExportingContoneBitmap (BOOL flag)
BOOL	GetAreExportingContoneBitmap (void)
Protected Member Functions
void	OutputFontName ()
INT32	GetFontStyle ()
void	ResetOutputAttributes ()
Protected Attributes
AttributeEntry *	LastOutputAttrs
CCLexFile *	ExportFile
CMXExportDC *	cmxDC
RRCaps	Caps
BOOL	AreExportingContoneBitmap
Friends
class	NodeBitmap

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Detailed Description

Definition at line 113 of file cmxrendr.h.

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Constructor & Destructor Documentation

CMXRenderRegion::CMXRenderRegion (  DocRect  ClipRect, Matrix  ConvertMatrix, FIXED16  ViewScale )

Constructor for an CMXOutputFilter object. The object should be initialised before use. Author: Ben_Summers (Xara Group Ltd) <camelotdev@xara.com> Date: 18/06/96 See also: CMXOutputFilter::Init Definition at line 128 of file cmxrendr.cpp. : VectorFileRenderRegion(ClipRect, ConvertMatrix, ViewScale) { }

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Member Function Documentation

BOOL CMXRenderRegion::AttachDevice (  View *  ViewToAttach, CNativeDC *  DCToAttach, Spread *  SpreadToAttach, bool  fOwned = false )  [virtual]

Reimplemented from RenderRegion.

void CMXRenderRegion::DrawPathToOutputDevice (  Path *  DrawPath, PathShape  shapePath )  [virtual]

Output all the commands required to render this path to the CMX file. Author: Ben_Summers (Xara Group Ltd) <camelotdev@xara.com> Date: 18/06/96 Parameters: DrawPath  - the path to render. [INPUTS] See also: RenderRegion::DrawPath; CMXRenderRegion::GetValidPathAttributes CMXRenderRegion::ExportPath Implements RenderRegion. Definition at line 221 of file cmxrendr.cpp. { ExportPath(DrawPath, FALSE); }

BOOL CMXRenderRegion::ExportBevel (  NodeBevel *  pBevel  )

Contains the custom export code for the bevel node. Author: Graeme_Sutherland (Xara Group Ltd) <camelotdev@xara.com> Date: 18/2/00 Parameters: pBevel  - A pointer to a bevel node. [INPUTS] Returns: TRUE if the node was successfully exported, FALSE if it wasn't. Definition at line 278 of file cmxrendr.cpp. { ColourFillAttribute *pFill = ( ColourFillAttribute * ) GetCurrentAttribute ( ATTR_FILLGEOMETRY ); StrokeColourAttribute *pLine = ( StrokeColourAttribute * ) GetCurrentAttribute ( ATTR_STROKECOLOUR ); OILBitmap *pBMP = NULL; DocColour OldColour ( pLine->Colour ); BitmapFillAttribute BevFill; BOOL Result = FALSE; DocRect Bounds = pBevel->GetBoundingRect (); RangeControl ControlFlags ( TRUE, TRUE ); Range ToRender ( pBevel, pBevel, ControlFlags ); DocColour Transparent ( COLOUR_TRANS ); KernelBitmap* pBevelBMP = NULL; NodeBevelController* pControl = (NodeBevelController*)pBevel->GetParentController(); if(pControl) pBevelBMP = pBevel->CreateBitmapCopy(pControl->GetDPI()); else { ERROR2(FALSE,"Failed to find a bevel controller node!"); } ERROR2IF(!pBevelBMP,FALSE,"Failed to create a new Export BevelBitmap!"); // Copy the information over. BevFill.SimpleCopy ( pBevel->GetBitmapFillAttribute () ); // Set the line colour to be transparent. pLine->Colour = Transparent; // For some reason, the pBevFill attribute isn't correctly instansiated at this point. // Thus it's necessary to load up the points describing its position before export is // attempted. Note: In the Flash export filter, these points are pre-loaded, so there // must be some weird bug somewhere. BevFill.SetStartPoint ( &Bounds.lo ); BevFill.SetEndPoint ( &DocCoord ( Bounds.hix, Bounds.loy ) ); BevFill.SetEndPoint2 ( &DocCoord ( Bounds.lox, Bounds.hiy ) ); // Attach the new bitmap to the bevel fill attribute. BevFill.AttachBitmap ( pBevelBMP ); // Set up the bevel fill as a standard bitmap fill. SetFillGeometry ( &BevFill, FALSE ); // Export the bevel. Result = ExportPath ( &( pBevel->InkPath ), FALSE ); // Pop the attribute off the stack. RestoreFillGeometry ( pFill, FALSE ); // Restore the line colour. pLine->Colour = OldColour; // Now delete the Copy Bitmap! delete pBevelBMP; pBevelBMP = NULL; return Result; }

BOOL CMXRenderRegion::ExportBevelBegin (  NodeBevelBegin *  pBevel  )

Stub function to prevent NodeBevelBegin from rendering. Author: Graeme_Sutherland (Xara Group Ltd) <camelotdev@xara.com> Date: 21/2/00 Input: pBevel - A pointer to a NodeBevelBegin object. Returns: TRUE if success. See also: - Definition at line 354 of file cmxrendr.cpp. { return TRUE; }

BOOL CMXRenderRegion::ExportPath (  Path *  DrawPath, BOOL  DataOnly )

Output all the commands required to render this path to the CMX file. If this is a compound path, the stroke/fill operators will always be output, regardless of the value of the DataOnly parameter. Author: Ben_Summers (Xara Group Ltd) <camelotdev@xara.com> Date: 18/06/96 Parameters: DrawPath  - the path to render. [INPUTS] DataOnly - if TRUE, only output the line/curve/moveto data, and not the stroke or fill operators. if FALSE, just output path normally. NB. see Purpose See also: RenderRegion::DrawPath; CMXRenderRegion::GetValidPathAttributes Definition at line 243 of file cmxrendr.cpp. { // Get the device context for our export file. KernelDC *pDC = (KernelDC*)CCDC::ConvertFromNativeDC(RenderDC); DocCoord* Coords = DrawPath->GetCoordArray(); PathVerb* Verbs = DrawPath->GetVerbArray(); INT32 NumCoords = DrawPath->GetNumCoords(); // No need to export a zero length path. if ( NumCoords != 0 ) { // There were some points on the path, so attempt to export it. return cmxDC->WritePath ( Coords, Verbs, NumCoords, DrawPath->IsFilled ); } else { // Pretend that it worked to prevent any errors from being thrown. return TRUE; } }

BOOL CMXRenderRegion::ExportShadow (  OILBitmap *  pBitmap, UINT32  Darkness, DocRect &  Bounds )

Contains the custom export code for the shadow node. Author: Graeme_Sutherland (Xara Group Ltd) <camelotdev@xara.com> Date: 18/2/00 Parameters: pShadow  - A pointer to a Shadow node. [INPUTS] Returns: TRUE if the node was successfully exported, FALSE if it wasn't. Definition at line 373 of file cmxrendr.cpp. { // The bitmap export code for CMX in Camelot is a mess, due to it being done at the last // minute when the last version was shipped. Because of this, the ExportShadow function // repeats a few lines of code from NodeBitmap::ExportRender. CMXExportDC *pDC = static_cast<CMXExportDC *> ( RenderDC ); ColourFillAttribute *pFill = ( ColourFillAttribute * ) GetCurrentAttribute ( ATTR_FILLGEOMETRY ); StrokeColourAttribute *pLine = ( StrokeColourAttribute * ) GetCurrentAttribute ( ATTR_STROKECOLOUR ); ADDR BitmapAddress = pBitmap->GetBitmapBits (); DocColour ShadowColour = *( static_cast<FillGeometryAttribute*> ( GetCurrentAttribute ( ATTR_FILLGEOMETRY ) ) ->GetStartColour () ); DocColour Background ( COLOUR_WHITE ); // I don't do backgrounds yet. DocColour BlendedShadow = AlphaBlend ( ShadowColour, Background, Darkness ); DocCoord Parallel [4]; StrokeColourAttribute StartColAttr ( BlendedShadow ); FlatFillAttribute EndColAttr; // I need to set the line colour (temporarily) to be the start colour, and the fill // colour to be the end colour. This sets the attributes up for a contone bitmap // fill. EndColAttr.SetStartColour ( &Background ); SetLineColour ( &StartColAttr, FALSE ); SetFillGeometry ( &EndColAttr, FALSE ); // Get the rectangle describing the shadow's path. Parallel [0] = DocCoord ( Bounds.lox, Bounds.hiy ); Parallel [1] = DocCoord ( Bounds.hix, Bounds.hiy ); Parallel [2] = DocCoord ( Bounds.hix, Bounds.loy ); Parallel [3] = DocCoord ( Bounds.lox, Bounds.loy ); // Quickly knock up a kernel bitmap. KernelBitmap Bitmap ( pBitmap ); // And export it. pDC->WriteBitmap ( &Bitmap, Parallel, CMXExportDC::CMXBITMAPCOLOURSOURCE_LINEANDFILL ); // Restore the old settings. RestoreFillGeometry ( pFill, FALSE ); RestoreLineColour ( pLine, FALSE ); // It all worked - so return TRUE. return TRUE; }

BOOL CMXRenderRegion::GetAreExportingContoneBitmap (  void   )  [inline]

Definition at line 143 of file cmxrendr.h. {return AreExportingContoneBitmap;};

INT32 CMXRenderRegion::GetFontStyle (   )  [protected]

void CMXRenderRegion::GetRenderRegionCaps (  RRCaps *  pCaps  )  [virtual]

This function allows render regions to admit to what they can and can not render. This allows other areas of the program to come in and help render regions out in some situations, if they are unable to render everything. eg. an OSRenderRegion can not render transparancy. Author: Ben_Summers (Xara Group Ltd) <camelotdev@xara.com> Date: 18/06/96 Parameters: pCaps  - The details about what types of thing this render region can render [OUTPUTS] Reimplemented from RenderRegion. Definition at line 438 of file cmxrendr.cpp. { // This forces line attributes - dash patterns and arrow heads to be output // properly for CMX, rather than using Camelot 'shorthand' tokens. pCaps->CanDoNothing(); pCaps->ArrowHeads = TRUE; pCaps->DashPatterns = TRUE; }

BOOL CMXRenderRegion::InitDevice (   )  [virtual]

Initialise the device specific mechanisms for this render region. Author: Ben_Summers (Xara Group Ltd) <camelotdev@xara.com> Date: 18/06/96 Returns: TRUE if the device context is initialised ok; FALSE if not. Errors: Same as base class. See also: RenderRegion::InitDevice Reimplemented from RenderRegion. Definition at line 182 of file cmxrendr.cpp. { // Call base class if (!RenderRegion::InitDevice()) return FALSE; // Set the render caps up GetRenderRegionCaps(&Caps); // Find out which document we're using ENSURE(RenderView->GetDoc() != NULL, "View's document is NULL!"); Document *TheDocument = RenderView->GetDoc(); KernelDC *pDC = (KernelDC*)CCDC::ConvertFromNativeDC(RenderDC); cmxDC = (CMXExportDC *)RenderDC; // Set up render region InitClipping(); // All ok return TRUE; }

void CMXRenderRegion::OutputFontName (   )  [protected]

void CMXRenderRegion::ResetOutputAttributes (   )  [protected]

void CMXRenderRegion::SetAreExportingContoneBitmap (  BOOL  flag  )  [inline]

Definition at line 142 of file cmxrendr.h. {AreExportingContoneBitmap = flag;};

BOOL CMXRenderRegion::WantsGrids (   )  [virtual]

very little Author: Ben_Summers (Xara Group Ltd) <camelotdev@xara.com> Date: 18/06/96 Returns: FALSE Reimplemented from RenderRegion. Definition at line 458 of file cmxrendr.cpp. { return FALSE; }

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Friends And Related Function Documentation

friend class NodeBitmap [friend]

Definition at line 117 of file cmxrendr.h.

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Member Data Documentation

BOOL CMXRenderRegion::AreExportingContoneBitmap [protected]

Definition at line 160 of file cmxrendr.h.

RRCaps CMXRenderRegion::Caps [protected]

Definition at line 158 of file cmxrendr.h.

CMXExportDC* CMXRenderRegion::cmxDC [protected]

Definition at line 155 of file cmxrendr.h.

CCLexFile* CMXRenderRegion::ExportFile [protected]

Definition at line 154 of file cmxrendr.h.

AttributeEntry* CMXRenderRegion::LastOutputAttrs [protected]

Reimplemented from VectorFileRenderRegion. Definition at line 152 of file cmxrendr.h.

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

• Kernel/cmxrendr.h (r1785/r1282)
• Kernel/cmxrendr.cpp (r1785/r1319)

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