opnudge.h

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// $Id: opnudge.h 751 2006-03-31 15:43:49Z alex $
// $Header: /Camelot/kernel/opnudge.h 2     28/07/00 11:51 Simonk $Descriptor
// Definition of the op nudge classes
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 */

#ifndef INC_OPNUDGE
#define INC_OPNUDGE
#include "tranlate.h"

#define OPTOKEN_NUDGE       _T("Nudge")

/********************************************************************************************

>   class OpNudge : public CCObject

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    7/9/94
    Purpose:    The underlying nudge op that does a nudge on the selection. 
                Note: Mark initially implemented the twelve different types of nudge as 
                      twelve seperate ops. Simon changed this (07/11/94) so that it now
                      uses only one operation, but has 12 OpDescriptors all of which map
                      to the same operation. We determine the type of nudge we are after
                      from the runtime class of the OpDescriptor in the Do function. 

********************************************************************************************/

class OpNudge : public OpTranslateTrans
{
CC_DECLARE_DYNCREATE(OpNudge);

public:
    static BOOL    Init();
    static OpState GetState(String_256*, OpDescriptor*);

    // Nudge step is the setting people will see in the set up dialogue, etc
    // i.e. it is the underlying nudge step distance
    static void         SetNudgeStep(MILLIPOINT Step)   { NudgeStep = Step; }
    static MILLIPOINT   GetNudgeStep()                  { return NudgeStep; }
    
    // The actual nudge displacement is the one that takes into account the nudge factor, which
    // provides the magnitude and direction.
    // Use these functions to get the X and Y nudge displacements to apply
    
    //changed from MILLIPOINT to double, to allow 1/5 nudge option  
    double  GetXNudgeDisplacement()         { return NudgeStep  * X_NudgeFactor; }
    double  GetYNudgeDisplacement()         { return NudgeStep  * Y_NudgeFactor; }
    double  GetXPixelDisplacement()         { return PixelNudge * X_NudgeFactor;}
    double  GetYPixelDisplacement()         { return PixelNudge * Y_NudgeFactor;}

    // Do() will nudge each selected object by GetXNudgeDisplacement() in the x direction
    // and GetYNudgeDisplacement in the y direction
    virtual void Do(OpDescriptor* pOpDesc);

    // Overide GetOpName() so the correct string appears in the undo/redo menu item strings
    void GetOpName(String_256* OpName);

    // Used to merge sequences of nudge operations
    virtual void PerformMergeProcessing() ; 

    // Will the nudge send the selection out of bounds
    BOOL IsNudgeOK(BOOL dx,BOOL dy);
        
    void ScrollToShow(DocCoord Coord);

    BOOL DoesActionListHideNodes(Operation * pOp);

protected:
    double          X_NudgeFactor;  // displacement nudged in x dir = NudgeStep * X_NudgeFactor;
    double          Y_NudgeFactor;  // displacement nudged in y dir = NudgeStep * Y_NudgeFactor;
    
private:
    static MILLIPOINT   NudgeStep;  // The size of a single nudge (must be a +ve value)
    double PixelNudge;              // The size of a single nudge. 
    BOOL flag;                      //Flag to determine whether to nudge in MM or pixels.
};

// Define all the op tokens

#define     OPTOKEN_NUDGEUP1                _T("NudgeUp1")
#define     OPTOKEN_NUDGEUP5                _T("NudgeUp5")
#define     OPTOKEN_NUDGEUP10               _T("NudgeUp10")
#define     OPTOKEN_NUDGEUPFIFTH            _T("NudgeUpFifth") 
#define     OPTOKEN_NUDGEUPPIXEL1           _T("NudgeUpPixel1")
#define     OPTOKEN_NUDGEUPPIXEL10          _T("NudgeUpPixel10")

#define     OPTOKEN_NUDGEDOWN1              _T("NudgeDown1")
#define     OPTOKEN_NUDGEDOWN5              _T("NudgeDown5")
#define     OPTOKEN_NUDGEDOWN10             _T("NudgeDown10")
#define     OPTOKEN_NUDGEDOWNFIFTH          _T("NudgeDownFifth")
#define     OPTOKEN_NUDGEDOWNPIXEL1         _T("NudgeDownPixel1")
#define     OPTOKEN_NUDGEDOWNPIXEL10        _T("NudgeDownPixel10")

#define     OPTOKEN_NUDGELEFT1              _T("NudgeLeft1")
#define     OPTOKEN_NUDGELEFT5              _T("NudgeLeft5")
#define     OPTOKEN_NUDGELEFT10             _T("NudgeLeft10")
#define     OPTOKEN_NUDGELEFTFIFTH          _T("NudgeLeftFifth")
#define     OPTOKEN_NUDGELEFTPIXEL1         _T("NudgeLeftPixel1")
#define     OPTOKEN_NUDGELEFTPIXEL10        _T("NudgeLeftPixel10")

#define     OPTOKEN_NUDGERIGHT1             _T("NudgeRight1")
#define     OPTOKEN_NUDGERIGHT5             _T("NudgeRight5")
#define     OPTOKEN_NUDGERIGHT10            _T("NudgeRight10")
#define     OPTOKEN_NUDGERIGHTFIFTH         _T("NudgeRightFifth")
#define     OPTOKEN_NUDGERIGHTPIXEL1        _T("NudgeRightPixel1")
#define     OPTOKEN_NUDGERIGHTPIXEL10       _T("NudgeRightPixel10")

#endif  // INC_OPNUDGE

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