Developer CD Series 1996 April: Mac OS SDK/Dev.CD Apr 96 SDK/Dev.CD Apr 96 SDK1.toast/Development Kits (Disc 1)/OpenDoc Development Framework/ODFDev/ODF/Examples/Draw/Include/DrawCmds.h

Text File | 1995-11-08 | 7.3 KB | 263 lines | [TEXT/MPS ]

//========================================================================================
//
//    File:                DrawCmds.h
//    Release Version:    $ 1.0d11 $
//
//    Author:                Mary Boetcher
//
//    Copyright:    © 1993, 1995 by Apple Computer, Inc., all rights reserved.
//
//========================================================================================

#ifndef DRAWCMDS_H
#define DRAWCMDS_H

// ----- FrameWork Includes -----

#ifndef FWCMD_H
#include "FWCmd.h"
#endif

// ----- OS Includes -----

#ifndef FWCOLOR_H
#include "FWColor.h"
#endif

#ifndef FWPAT_H
#include "FWPat.h"
#endif

#ifndef FWRECT_H
#include "FWRect.h"
#endif


//========================================================================================
//    Forward Declarations
//========================================================================================

#if FW_LIB_EXPORT_PRAGMAS
#pragma lib_export on
#endif
class FW_CLASS_ATTR FW_CFrame;
class FW_CLASS_ATTR FW_CPrivOrderedCollection;
#if FW_LIB_EXPORT_PRAGMAS
#pragma lib_export off
#endif

class FW_CLASS_ATTR CBaseShape;
class FW_CLASS_ATTR CDrawPart;
class FW_CLASS_ATTR CDrawFrame;
class FW_CLASS_ATTR CDrawSelection;

//========================================================================================
//     Constants - Command numbers
//========================================================================================

const ODCommandID cDrawShapeCommand        = 3000;
const ODCommandID cChangeFillColor        = 3001;
const ODCommandID cChangeFillPattern    = 3002;
const ODCommandID cChangeFrameColor        = 3003;
const ODCommandID cChangeFramePattern    = 3004;
const ODCommandID cChangeRenderVerb        = 3005;
const ODCommandID cResizeCommand        = 3006;

//========================================================================================
// class CDrawShapeCommand - Draw a new shape and add it to the document
//========================================================================================

class FW_CLASS_ATTR CDrawShapeCommand : public FW_CCommand
{
  public:

    CDrawShapeCommand(Environment* ev,
                    CDrawPart* part,
                    FW_CFrame* frame,
                    CDrawSelection* selection,
                    CBaseShape* newShape);

    virtual ~ CDrawShapeCommand();

    // --- Command overrides
    virtual void DoIt(Environment* ev);            // Override
    virtual void UndoIt(Environment* ev);            // Override
    virtual void RedoIt(Environment* ev);            // Override
    virtual void CommitUndone(Environment* ev);    // Override

  protected:
    CBaseShape*        fNewShape;
    CDrawPart*        fDrawPart;
    CDrawSelection*    fDrawSelection;

    void SelectSavedShape(Environment* ev);
};

//========================================================================================
// class CResizeShapeCommand - Change size of selected shapes
//========================================================================================

class FW_CLASS_ATTR CResizeShapeCommand : public FW_CCommand
{
  public:

    CResizeShapeCommand(Environment* ev,
                        CDrawPart* part,
                        FW_CFrame* frame,
                        CDrawSelection* selection,
                        const FW_CRect& srcRect,
                        const FW_CRect& dstRect);

    virtual ~ CResizeShapeCommand();

    // --- Command overrides
    virtual void DoIt(Environment* ev);            // Override
    virtual void UndoIt(Environment* ev);            // Override
    virtual void RedoIt(Environment* ev);            // Override
    virtual void SaveUndoState(Environment* ev);    // Override

  protected:
    void Redraw(Environment* ev);
    void SelectChangedShapes(Environment* ev);

  protected:
    CDrawPart*        fDrawPart;
    FW_CFrame*        fFrame;
    CDrawSelection*    fDrawSelection;
    FW_CRect        fSourceRect;
    FW_CRect        fDestRect;
    ODShape*        fUpdateShape;
    FW_CPrivOrderedCollection* fChangedShapeList;
};

//========================================================================================
// class CChangeShapeCommand - Change shape attributes: color, pattern, render verb
//========================================================================================

class FW_CLASS_ATTR CChangeShapeCommand : public FW_CCommand
{
  public:

    CChangeShapeCommand(Environment* ev,
                        ODCommandID id,
                        CDrawPart* part,
                        FW_CFrame* frame,
                        CDrawSelection* selection);

    virtual ~ CChangeShapeCommand();

    // --- Command overrides
    virtual void DoIt(Environment* ev);            // Override
    virtual void UndoIt(Environment* ev);            // Override
    virtual void RedoIt(Environment* ev);            // Override
    virtual void SaveUndoState(Environment* ev);    // Override

  protected:

    // --- Must be overridden
    virtual void DoChange(Environment* ev) = 0;
    virtual void UndoShape(Environment* ev, CBaseShape* shape, unsigned long index) = 0;

    void SelectChangedShapes(Environment* ev);

  protected:
    CDrawPart*                fDrawPart;
    CDrawSelection*            fDrawSelection;
    FW_CPrivOrderedCollection*        fChangedShapeList;
        // list of shapes affected by command
};

//========================================================================================
// CChangeColorCommand
//========================================================================================

class FW_CLASS_ATTR CChangeColorCommand : public CChangeShapeCommand
{
  public:

    CChangeColorCommand(Environment* ev,
                        ODCommandID commandID,
                        CDrawPart* part,
                        FW_CFrame* frame,
                        CDrawSelection* selection,
                        const FW_CColor& newColor);

    virtual ~ CChangeColorCommand();

    // --- CChangeShapeCommand overrides
  protected:
    virtual void DoChange(Environment* ev);        // Override
    virtual void UndoShape(Environment* ev, CBaseShape* shape, unsigned long index);    // Override
  public:
    virtual void SaveUndoState(Environment* ev);    // Override

  protected:
    FW_CColor*            fOldColors;        // array of FW_CColor
    FW_CColor            fNewColor;
    FW_Boolean            fIsFill;
};

//========================================================================================
// CChangePatternCommand
//========================================================================================

class FW_CLASS_ATTR CChangePatternCommand : public CChangeShapeCommand
{
  public:

    CChangePatternCommand(Environment* ev,
                        ODCommandID commandID,
                        CDrawPart* part,
                        FW_CFrame* frame,
                        CDrawSelection* selection,
                        const FW_PPattern& newPattern);

    virtual ~ CChangePatternCommand();

    // --- CChangeShapeCommand overrides
  protected:
    virtual void DoChange(Environment* ev);        // Override
    virtual void UndoShape(Environment* ev, CBaseShape* shape, unsigned long index);    // Override

  public:
    virtual void SaveUndoState(Environment* ev);    // Override

  protected:
    FW_PPattern*        fOldPatterns;    // array of FW_PPattern
    FW_PPattern            fNewPattern;
    unsigned short        fCount;
    FW_Boolean            fIsFill;
};

//========================================================================================
// CChangeRenderVerbCommand
//========================================================================================

class FW_CLASS_ATTR CChangeRenderVerbCommand : public CChangeShapeCommand
{
  public:

    CChangeRenderVerbCommand(Environment* ev,
                            CDrawPart* part,
                            FW_CFrame* frame,
                            CDrawSelection* selection,
                            unsigned short newRenderVerb);

    virtual ~ CChangeRenderVerbCommand();

    // --- CChangeShapeCommand overrides
  protected:
    virtual void DoChange(Environment* ev);        // Override
    virtual void UndoShape(Environment* ev, CBaseShape* shape, unsigned long index);    // Override
  public:
    virtual void SaveUndoState(Environment* ev);    // Override

  private:
    unsigned short    fNewRenderVerb;
    unsigned short*    fOldRenderVerbs;    // array of unsigned short
};



#endif