cmxibits.h

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// $Id: cmxibits.h 1282 2006-06-09 09:46:49Z alex $
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================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
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----------------------------------

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=================================XARAHEADEREND============================
 */
// bits and pieces for the CMX import filter

#ifndef CMXIBITS_H
#define CMXIBITS_H

//#include "list.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "fixst256.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "colourix.h"
//#include "attr.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "arrows.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "cmxistut.h"


class Node;
class Layer;
class CMXImportFilter;
class CMXImportFilterDataSet;
class DocColour;

// class for storing layer info
class CMXImportLayer : public ListItem
{
    CC_DECLARE_DYNAMIC(CMXImportLayer);

public:
    CMXImportLayer();
    ~CMXImportLayer();

    // access functions
    Node *GetSubTree(void) {return pSubTree;};
    void UseSubTree(void) {Used = TRUE;};
    Node *GetLastAdded(void) {return pLastNodeAdded;};
    void SetName(StringBase *pString) {LayerName = *pString;};

    // stuff for adding bits
    BOOL AddNode(Node *pNode);
    BOOL StartGroup(void);
    BOOL EndGroup(void);

    // handy bits
    Layer *UseSubTreeAsLayer(void);

private:
    Node *pSubTree;
    Node *pLastNodeAdded;
    String_256 LayerName;
    BOOL Used;
    Node *pGroup;
    INT32 GroupLevel;
};

#define cmxiSTACKTYPE_NOTHING       0
#define cmxiSTACKTYPE_TRANSFORM     1
#define cmxiSTACKTYPE_CLIPPER       2

class CMXImportStack;

// class for stackable items
class CMXImportStackableItem : public ListItem
{
    CC_DECLARE_DYNAMIC(CMXImportStackableItem);

public:
    virtual INT32 GetStackType(void) = 0;

    // function to be called when it's popped on a stack (after being added to the list)
    virtual BOOL PlacedOnStack(CMXImportStack *pStack) {return TRUE;};
    // function to be called to activate this stack item
    virtual BOOL Activate(CMXImportStack *) = 0;
    // function to be called to deactivate this stack item
    // if it's the last thing on the stack, IsLastItemOnStack is set
    // to let the thingy know that another item isn't going to be activated
    virtual BOOL Deactivate(CMXImportStack *, BOOL IsLastItemOnStack) = 0;
    // called when the thingy is being removed from the stack
    virtual BOOL RemovedFromStack(CMXImportStack *pStack) {return TRUE;};
};

// stack class
class CMXImportStack : public List
{
    CC_DECLARE_DYNAMIC(CMXImportStack);

public:
    CMXImportStack(INT32 St, CMXImportFilter *pFil) {StackType = St; pTheFilter = pFil;};
    ~CMXImportStack();

    CMXImportFilter *GetFilter(void) {return pTheFilter;};

    BOOL Push(CMXImportStackableItem *pItem);
    CMXImportStackableItem *Pop(void);

private:
    INT32 StackType;
    CMXImportFilter *pTheFilter;
};

// transform class
class CMXImportTransform : public CMXImportStackableItem
{
    CC_DECLARE_DYNAMIC(CMXImportTransform);

public:
    CMXImportTransform(Matrix *pTheMatrix, BOOL Concat) {TheMatrix = *pTheMatrix; Concatenate = Concat;};

    INT32 GetStackType(void) {return cmxiSTACKTYPE_TRANSFORM;};

    BOOL PlacedOnStack(CMXImportStack *pStack);
    BOOL Activate(CMXImportStack *pStack);
    BOOL Deactivate(CMXImportStack *pStack, BOOL IsLastItemOnStack);

private:
    Matrix TheMatrix;           // matrix found in the file
    Matrix CompoundMatrix;      // matrix made from all the previous ones and the base matrix
    BOOL Concatenate;           // whether this matrix is concatonated to previous ones, or just replaces them
};

// transform class
class CMXImportClipper : public CMXImportStackableItem
{
    CC_DECLARE_DYNAMIC(CMXImportClipper);

public:
    CMXImportClipper(Path *ptClipPath, BOOL tIntersect) {pClipPath = ptClipPath; Intersect = tIntersect;};

    INT32 GetStackType(void) {return cmxiSTACKTYPE_CLIPPER;};

    BOOL PlacedOnStack(CMXImportStack *pStack);
    BOOL Activate(CMXImportStack *pStack);
    BOOL Deactivate(CMXImportStack *pStack, BOOL IsLastItemOnStack);

private:
    Path *pClipPath;
    BOOL Intersect;             // whether this path is intersected with the previous one
};

// colour class
class CMXImportColour : public SimpleCCObject
{
public:
    CMXImportColour() {Used = FALSE; pIndexedColour = NULL; pColour = NULL;};
    ~CMXImportColour() {delete pColour; if(!Used) delete pIndexedColour;};

    DocColour *GetColour(void) {Used = TRUE; return pColour;};
    BOOL IsUsed(void) {return Used;};
    IndexedColour *GetIndexedColour(void) {return pIndexedColour;};

    // if I use the proper type, none of the files which include this
    // one will compile, and try as I may, I can't get it to work.
    // I don't think this is me being silly, but I've given up on this
    // one and lost the lovely type checking. Shouldn't be too much of 
    // a problem as these functions are only called in one place.
    BOOL Convert(/*cmxiColour*/ void *pCol);

private:
    BOOL Used;
    IndexedColour *pIndexedColour;
    DocColour *pColour;
};

// dot dash pattern class
class CMXImportDotDash : public SimpleCCObject
{
public:
    CMXImportDotDash() {pElements = NULL;};
    ~CMXImportDotDash() {if(pElements != NULL) delete [] pElements;};

    // see above reason why this is not properly typed
    BOOL Convert(/*cmxiDotDash*/ void *pDotDash);

    INT32 NDots;
    DashElement *pElements;
};

// arrowhead shape class
class CMXImportArrowShape : public SimpleCCObject
{
public:
    // see above reason why this is not properly typed
    BOOL Convert(/*cmxiArrowShape*/ void *pArrowShape, BOOL Is32Bit);

    ArrowRec Arrow;
    INT32 LineOffset;
};

// arrowheads class
class CMXImportArrowheads : public SimpleCCObject
{
public:
    CMXImportArrowheads() {pStart = NULL; pEnd = NULL;};

    // see above reason why this is not properly typed
    BOOL Convert(/*cmxiArrowheads*/ void *pArrowheads, CMXImportFilterDataSet *Data);

    CMXImportArrowShape *pStart;
    CMXImportArrowShape *pEnd;
};

// outline class
class CMXImportOutline : public SimpleCCObject
{
public:
    CMXImportOutline() {pDots = NULL; pArrowheads = NULL;};

    // see above reason why this is not properly typed
    BOOL Convert(/*cmxiOutline*/ void *pOut, CMXImportFilterDataSet *Data);

    INT32 ColourReference;
    INT32 Width;
    JointType Join;
    LineCapType Cap;
    CMXImportDotDash *pDots;
    CMXImportArrowheads *pArrowheads;
    BOOL NoStroke;
};

// pen class
class CMXImportPen : public SimpleCCObject
{
public:
    // see above reason why this is not properly typed
    BOOL Convert(/*cmxiPen*/ void *pPen);

    INT32 Width;
};

class CMXImportFont : public SimpleCCObject
{
public:
    BOOL Convert(/*cmxiFont*/ void *pFont);
    StringBase* mFont;
    BOOL mIsItalic;
    BOOL mIsBold;
};


// line style class
class CMXImportLineStyle : public SimpleCCObject
{
public:
    // see above reason why this is not properly typed
    BOOL Convert(/*cmxiLineStyle*/ void *pStyle);

    JointType Join;
    LineCapType Cap;
    BOOL DotDash;
    BOOL NoStroke;
};

// colour list class
class CMXImportColourList : public List
{
    CC_DECLARE_DYNAMIC(CMXImportColourList);

public:
    CMXImportColourList() {};
    ~CMXImportColourList() {DeleteAll();};

    BOOL AddColour(INT32 Reference, INT32 Position);
    INT32 GetColourRefClosestToPosition(INT32 Position);
};

// colour list item class
class CMXImportColourListItem : public ListItem
{
    CC_DECLARE_DYNAMIC(CMXImportColourListItem);

public:
    INT32 Reference;
    INT32 Position;
};

class CMXImportProcedure : public SimpleCCObject
{
public:
    CMXImportProcedure() {Position = 0;};
    
    BOOL Read(/*cmxiProcedureIndexEntry*/ void *pEn);

    INT32 Position;
};


#endif // CMXIBITS_H

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