Corel3EPSFilter Class Reference

An import filter to import EPS files as saved by Corel Draw! 3.x. More...

#include <coreleps.h>

Inheritance diagram for Corel3EPSFilter:

List of all members.

Public Member Functions
	Corel3EPSFilter ()
	Constructor for a Corel3EPSFilter object. The object should be initialised before use.
BOOL	Init ()
	Initialise an Corel3EPSFilter object.
char *	GetEPSCommand (EPSCommand Cmd)
	Given an EPS token, return the string representation of it; mainly for debugging purposes.
Protected Member Functions
virtual void	LookUpToken ()
	Compare the current token against the Corel 3 specific keywords to see if it is one of them.
virtual BOOL	ProcessToken ()
	Processes EPS tokens that are not part of the standard Illustrator set. i.e. this is the function that handles all the Corel EPS operators.
INT32	EPSHeaderIsOk (ADDR pFileHeader, UINT32 HeaderSize)
	Checks to see if the EPS comment headers specify that this is an Corel generated EPS file, as required.
Static Protected Attributes
static CommandMap	Corel3Commands []
Private Member Functions
	CC_DECLARE_DYNAMIC (Corel3EPSFilter)

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Detailed Description

An import filter to import EPS files as saved by Corel Draw! 3.x.

Author:

Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>

Date:

08/03/94

See also:

Corel4EPSFilter; CorelEPSFilter

Definition at line 169 of file coreleps.h.

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Constructor & Destructor Documentation

Corel3EPSFilter::Corel3EPSFilter (   )

Constructor for a Corel3EPSFilter object. The object should be initialised before use. Author: Tim_Browse (Xara Group Ltd) <camelotdev@xara.com> Date: 28/10/93 See also: EPSFilter::Init Definition at line 1138 of file coreleps.cpp. { // Set up filter description. FilterID = FILTERID_COREL3_EPS; ImportMsgID = _R(IDT_IMPORTMSG_COREL3); #ifndef STANDALONE Flags.CanImport = TRUE; Flags.CanExport = FALSE; #else Flags.CanImport = FALSE; Flags.CanExport = FALSE; #endif }

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Member Function Documentation

Corel3EPSFilter::CC_DECLARE_DYNAMIC (  Corel3EPSFilter   )  [private]

INT32 Corel3EPSFilter::EPSHeaderIsOk (  ADDR  pFileHeader, UINT32  HeaderSize )  [protected, virtual]

Checks to see if the EPS comment headers specify that this is an Corel generated EPS file, as required. Author: Tim_Browse (Xara Group Ltd) <camelotdev@xara.com> Date: 28/02/94 Returns: TRUE if the header is ok and import should proceed, FALSE if not. Reimplemented from EPSFilter. Definition at line 1193 of file coreleps.cpp. { // Check the first line in EPS file if (camStrncmp((char *) pFileHeader, "%!PS-Adobe-2.0 EPSF", 19) != 0) { // Incorrect version of EPS header line - we don't want this return 0; } // !PS-Adobe line is ok - check creator line... istrstream HeaderFile((char *) pFileHeader, HeaderSize); char Buffer[200]; BOOL HaveCreatorString = FALSE; UINT32 Lines = 0; while ((Lines < 20) && !HeaderFile.eof()) { HeaderFile.getline(Buffer, 200); Lines++; if (camStrncmp(Buffer, "%%Creator: CorelDRAW!", 21) == 0) { HaveCreatorString = TRUE; } // Check for CorelDRAW exported by other packages if (camStrstr("Corel", Buffer) != NULL) // Found Corel in the creator line - good chance it's Corel EPS. return 8; if(camStrncmp(Buffer, "/wCorelDict", 11) == 0 && HaveCreatorString == TRUE) { // OK, found it return 10; } // If we find the compression token then stop the search as we don't want to start // looking in the compressed data! if (camStrncmp(Buffer, "%%Compression:", 14)==0) break; } // Didn't find a suitable Creator line, but we found an EPS header line. return 5; // May want to look for this string one day. #if 0 if (camStrncmp(Buf, "% -------------- POSTSCRIPT PROLOG FOR CORELDRAW 3.X", 52) == 0) FoundProlog = TRUE; #endif }

char * Corel3EPSFilter::GetEPSCommand (  EPSCommand  Cmd  )

Given an EPS token, return the string representation of it; mainly for debugging purposes. Author: Tim_Browse (Xara Group Ltd) <camelotdev@xara.com> Date: 28/02/94 Parameters: Cmd  - the EPS token, e.g. EPSC_cd_c [INPUTS] Returns: Pointer to the string representation of the token, e.g. "@c" Reimplemented from CorelEPSFilter. Definition at line 1377 of file coreleps.cpp. { INT32 i = 0; while (Corel3Commands[i].Cmd != EPSC_Invalid) { if (Corel3Commands[i].Cmd == Cmd) return Corel3Commands[i].CmdStr; // Try next command i++; } // Couldn't find it - default to base class method return CorelEPSFilter::GetEPSCommand(Cmd); }

BOOL Corel3EPSFilter::Init (  void   )  [virtual]

Initialise an Corel3EPSFilter object. Author: Tim_Browse (Xara Group Ltd) <camelotdev@xara.com> Date: 28/02/94 Returns: TRUE if the filter was initialised ok, FALSE otherwise. Errors: Will fail if not enough memory to initialise the EPS stack. See also: EPSStack Reimplemented from CorelEPSFilter. Definition at line 1166 of file coreleps.cpp. { // Get the OILFilter object pOILFilter = new Corel3EPSOILFilter(this); if (pOILFilter == NULL) return FALSE; // Load the description strings FilterName.Load(_R(IDT_CORELEPS_FILTERNAME)); FilterInfo.Load(_R(IDT_CORELEPS_FILTERINFO)); // All ok return TRUE; }

void Corel3EPSFilter::LookUpToken (   )  [protected, virtual]

Compare the current token against the Corel 3 specific keywords to see if it is one of them. Author: Tim_Browse (Xara Group Ltd) <camelotdev@xara.com> Date: 25/02/94 See also: EPSFilter::DecodeToken Reimplemented from CorelEPSFilter. Definition at line 1257 of file coreleps.cpp. { // Not interested in comments if (Token == EPSC_Comment) return; // Check to see if it is a keyword - cycle through the array of keyword names and // compare against our token (could use a hash table?) INT32 i = 0; while (Corel3Commands[i].Cmd != EPSC_Invalid) { if (camStrcmp(TokenBuf, Corel3Commands[i].CmdStr) == 0) { // Found the token - set the token variable and return success Token = Corel3Commands[i].Cmd; return; } // Try next command i++; } // Did not find this token - try base class CorelEPSFilter::LookUpToken(); }

BOOL Corel3EPSFilter::ProcessToken (   )  [protected, virtual]

Processes EPS tokens that are not part of the standard Illustrator set. i.e. this is the function that handles all the Corel EPS operators. Author: Tim_Browse (Xara Group Ltd) <camelotdev@xara.com> Date: 25/02/94 Returns: TRUE if token understood and processed ok, FALSE if not. Errors: Syntax error in EPS, Out of memory. See also: EPSFilter::ProcessToken Reimplemented from CorelEPSFilter. Definition at line 1296 of file coreleps.cpp. { // Variables used to extract operands from the stack PColourCMYK Col; DocCoord Coords[3]; TintType Tint = TINT_NONE; FIXEDPOINT TintVal; String_64 ColName; double Padding, RotateX, RotateY; // Decode the command, and execute it... switch (Token) { case EPSC_cd3_0x: Tint = TINT_COREL; case EPSC_cd3_0k: // Get the grad fill parameters. if (!Stack.Pop(&RotateY) || !Stack.Pop(&RotateX) || !Stack.Pop(&Padding) || !Stack.Pop(&GradFillInfo.FillType) || !Stack.Pop(&GradFillInfo.Angle)) goto EPSError; // Convert values from floating point to integer GradFillInfo.EdgePad = (INT32) (Padding * 100.0); GradFillInfo.RotateX = (INT32) (RotateX * 100.0); GradFillInfo.RotateY = (INT32) (RotateY * 100.0); // Get the end colour. if (!Stack.PopColour(&Col, Tint, &TintVal, &ColName)) // Invalid colour operands goto EPSError; GetEPSColour(&EndColour, &Col, Tint, TintVal, &ColName); // EndColour.SetCMYKValue(&Col); // Get the start colour. if (!Stack.PopColour(&Col, Tint, &TintVal, &ColName)) // Invalid colour operands goto EPSError; GetEPSColour(&StartColour, &Col, Tint, TintVal, &ColName); // StartColour.SetCMYKValue(&Col); GradFill = TRUE; break; default: return CorelEPSFilter::ProcessToken(); } // No errors encountered while parsing this token and its operands. return TRUE; // Error handlers: EPSError: HandleEPSError(); return FALSE; #if 0 NoMemory: HandleNoMemory(); return FALSE; #endif }

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Member Data Documentation

CommandMap Corel3EPSFilter::Corel3Commands [static, protected]

Initial value: { EPSC_cd3_0k, "@k", EPSC_cd3_0x, "@x", EPSC_Invalid, "Invalid" } Definition at line 184 of file coreleps.h.

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

• Kernel/coreleps.h (r1785/r1282)
• Kernel/coreleps.cpp (r1785/r1312)

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