GOP_BreakpointGroupParser.h

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/*
 * PROPRIETARY INFORMATION.  This software is proprietary to
 * Side Effects Software Inc., and is not to be reproduced,
 * transmitted, or disclosed in any way without written permission.
 *
 * COMMENTS:  This class contains a parser for the breakpoint groups.
 *            The doIt() method returns the number of breakpoints parsed,
 *            or -1 if an error has occured.
 *
 */

#ifndef __GOP_BreakpointGroupParser_h__
#define __GOP_BreakpointGroupParser_h__

#include "GOP_API.h"
#include "GOP_Parser.h"
#include <GA/GA_Types.h>

class GEO_Detail;
class GA_BreakpointGroup;
class GA_Breakpoint;
class GOP_Manager;
class GA_Primitive;
class GEO_Primitive;

class GOP_API GOP_BreakpointGroupParser : public GOP_Parser
{
public:
    GOP_BreakpointGroupParser(GOP_Manager *manager, const GEO_Detail &gdp,
                              const UT_String &str,
                              bool strict = true, GA_Index prim_offset = GA_Index(0));

    // Build a string that contains the id's of the breakpoints in a breakpoint
    // group.  The offset is the amount to add to the ids of the primitives for
    // each breakpoint in the group.
    static void          buildGroupToken(const GEO_Detail *gdp,
                                         const GA_BreakpointGroup *bkptgrp,
                                         UT_String &token,
                                         GA_Index offset = GA_Index(0));

    // Build a string representing a single breakpoint element.  The offset is
    // the amount to add to the ids of the primitive.
    static void          buildElementToken(const GEO_Detail *gdp,
                                           const GA_Breakpoint &bkpt,
                                           UT_String &token,
                                           GA_Index offset = GA_Index(0));


private:

    void                init() override;
    void                finish() override;
    bool                dispatch(char c) override;
    
    // State Handlers
    void                handleStart() override;
    void                handleError() override;

    void                handleCollectPrim();
    void                handleCollectSec();
    void                handleCollectName();
    void                handleCollectBreakpointU0();
    void                handleCollectBreakpointU1();
    void                handleCollectBreakpointV0();
    void                handleCollectBreakpointV1();

    // State Variables  
    bool                myOpenBracket;
    GA_Index            myPrimIndex;
    int                 mySecIndex;
    int                 myU0;
    int                 myU1;
    int                 myV0;
    int                 myV1;

    // Breakpoint Specific Methods
    bool                addCurveBreakpoint();
    bool                addSurfBreakpoint();
    bool                addSecBreakpoint();
    bool                addAllPrimBreakpoints(const GEO_Primitive *prim = 0);
    bool                addAllSecBreakpoints();
    bool                addAllSecBreakpoints(const GA_Primitive *prim);
    bool                addCurveBreakpointRange(int u0, int u1);
    bool                addSecBreakpointRange(int u0, int u1);
    bool                addSurfBreakpointRange(int u0, int u1, int v0, int v1);
    bool                addPrimGroup(const char *name);

    // Utility methods
    const GEO_Primitive      *getPrim();

    const GEO_Detail         &myGdp;    
    GA_BreakpointGroup       *myGroup;
    GOP_Manager              *myManager;        
    bool                      myStrictFlag;
    GA_Index                  myPrimOffset;
};


#endif