rulers.h

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// $Id: rulers.h 1535 2006-07-25 16:50:32Z alex $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
                    Copyright (C) 1993-2006 Xara Group Ltd.
       Copyright on certain contributions may be held in joint with their
              respective authors. See AUTHORS file for details.

LICENSE TO USE AND MODIFY SOFTWARE
----------------------------------

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=================================XARAHEADEREND============================
 */
// Encapsulate the kernel'ly bits of the rulers


#ifndef INC_RULERS
#define INC_RULERS

#include "oilruler.h"
#include "userrect.h"
#include "contmenu.h"

class RulerPair;
class DocView;
class NodeRenderableInk;

// WEBSTER - markn 15/1/97
// No rulers in Webster, same as RALPH
#ifndef WEBSTER
#if !defined(EXCLUDE_FROM_RALPH)

/********************************************************************************************
>   class RulerBase : public CCObject

    Author:     Ed_Cornes (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/8/95
    Purpose:    Common base class for a ruler (X and Y derived)
********************************************************************************************/

class RulerBase : public CC_CLASS_MEMDUMP
{
    CC_DECLARE_MEMDUMP(RulerBase);

public:
    RulerBase();
    virtual ~RulerBase() {} // suppress warnings

    RulerPair* GetpRulerPair() { return pRulerPair; }
    OILRuler*  GetpOILRuler()  { return pOILRuler; }

    virtual MILLIPOINT    GetOrd(const UserCoord& coord) = 0;
    virtual UserCoord  MakeCoord(const MILLIPOINT ord)   = 0;
    virtual BOOL    IsHorizontal()                       = 0;

    // OilRuler interface

    // Called by the OIL ruler when the ruler needs to be redrawn.
    // We do all the platform independent computations and call the
    // OIL ruler back to render specific things (e.g., graticules)
    BOOL Redraw(OilRect* pOilRect);
    virtual BOOL GetStatusLineText(String_256* pText, OilCoord PointerPos);
    virtual BOOL OnRulerClick(OilCoord, ClickType, ClickModifiers);

    // Tool interface
    
    // For use by tools that wish to render extra things on the ruler
    // (by responding to the RenderRulerBlobs method)
    BOOL HighlightSection(MILLIPOINT ord_lo, MILLIPOINT ord_hi);
    BOOL DrawBitmap(MILLIPOINT ord, ResourceID BitmapID);
    // Allow tools to start a drag after receiving an OnRulerClick call.
    // Drag events will be dispatched via OnRulerClick.
    BOOL StartToolDrag(ClickModifiers Mods, UserCoord, String_256* pOpToken, OpParam* pParam);

protected:
    UserCoord OilToToolCoords(OilCoord PointerPos, Spread* pSpread);
    RulerPair* pRulerPair;
    OILRuler*  pOILRuler;
};


/********************************************************************************************
>   class HorizontalRuler : public RulerBase

    Author:     Ed_Cornes (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/8/95
    Purpose:    Encapsulates horizontal ruler
********************************************************************************************/

class HorizontalRuler : public RulerBase
{
    CC_DECLARE_MEMDUMP(HorizontalRuler);

public:
    HorizontalRuler();
    BOOL Init(RulerPair* pRulers, OILHorizontalRuler* pOILHRuler);

    virtual MILLIPOINT    GetOrd(const UserCoord& coord) { return coord.x; }
    virtual UserCoord  MakeCoord(const MILLIPOINT ord)   { return UserCoord(ord,0); }
    virtual BOOL    IsHorizontal() { return TRUE; }
};


/********************************************************************************************
>   class VerticalRuler : public RulerBase

    Author:     Ed_Cornes (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/8/95
    Purpose:    Encapsulates vertical ruler
********************************************************************************************/

class VerticalRuler : public RulerBase
{
    CC_DECLARE_MEMDUMP(VerticalRuler);

public:
    VerticalRuler();
    BOOL Init(RulerPair* pRulers, OILVerticalRuler* pOILVRuler);

    virtual MILLIPOINT    GetOrd(const UserCoord& coord) { return coord.y; }
    virtual UserCoord  MakeCoord(const MILLIPOINT ord)   { return UserCoord(0,ord); }
    virtual BOOL    IsHorizontal() { return FALSE; }
};


/********************************************************************************************
>   struct RulerRedrawData

    Author:     Ed_Cornes (Xara Group Ltd) <camelotdev@xara.com>
    Created:    8/9/95
    Purpose:    structure containing semi-permenent redraw data
********************************************************************************************/

struct RulerRedrawData
{
    UserRect   PasteBoardUserRect;
    INT32       GratStep;
    double     GratStepSize;
    INT32       MinorGrats;
    double     MinorGratStepSize;
    double     GratUnitSize;
    double     ScaleFactor;
    String_32  LegendStr;
};


/********************************************************************************************
>   class RulerPair : public MessageHandler

    Author:     Ed_Cornes (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/8/95
    Purpose:    Encapsulates a horizontal and vertical ruler pair
********************************************************************************************/

class RulerPair : public MessageHandler
{
    CC_DECLARE_MEMDUMP(RulerPair);

public:
    RulerPair();
    BOOL Init(DocView* pDView, OILHorizontalRuler* pOILHRuler, OILVerticalRuler* pOILVRuler,
              OriginGadget* pOGadget);

    MsgResult Message(Msg* Msg);
    BOOL      GetStatusLineText(String_256* pText, WinCoord MousePos, CWindowID hWnd);
    BOOL      Update();
    BOOL      UpdateRedrawData();

    BOOL     UpdateMouseFollowers(DocCoord* pDocCoord);
    BOOL     GetMouseFollowerVisibility() { return MouseFollowerVisibility; }
    DocCoord GetMouseFollowerPosition()   { return MouseFollowerPosition; }

    DocView*         GetpDocView()         { return pDocView; }
    Spread*          GetpSpread()          { return pSpread; }
    OriginGadget*    GetpOriginGadget()    { return pOriginGadget; }
    HorizontalRuler* GetpHorizontalRuler() { return &HRuler; }
    VerticalRuler*   GetpVerticalRuler()   { return &VRuler; }
    RulerRedrawData* GetpRedrawData()      { return &RedrawData; }

protected:
    DocView*        pDocView;
    Spread*         pSpread;
    OriginGadget*   pOriginGadget;
    HorizontalRuler HRuler;
    VerticalRuler   VRuler;
    RulerRedrawData RedrawData;

    BOOL     MouseFollowerVisibility;
    DocCoord MouseFollowerPosition;
};


/******************************************************************************
>   class RulerContextMenu : public ContextMenu

    Author:     Ed_Cornes (Xara Group Ltd) <camelotdev@xara.com>
    Created:    9/10/95
    Purpose:    Implements the Ruler context sensitive menu
******************************************************************************/

class RulerContextMenu : public ContextMenu
{
    CC_DECLARE_MEMDUMP(RulerContextMenu);

public:
    virtual BOOL Build();
};


/******************************************************************************
>   class OriginContextMenu : public ContextMenu

    Author:     Ed_Cornes (Xara Group Ltd) <camelotdev@xara.com>
    Created:    9/10/95
    Purpose:    Implements the Ruler context sensitive menu
******************************************************************************/

class OriginContextMenu : public ContextMenu
{
    CC_DECLARE_MEMDUMP(OriginContextMenu);

public:
    virtual BOOL Build();
};
#endif
#endif  // WEBSTER
#endif  // INC_RULERS

---