dragtool.h

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// $Id: dragtool.h 1282 2006-06-09 09:46:49Z alex $
// Header for the drag tool implementation.
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 */

#ifndef INC_DRAGTOOL
#define INC_DRAGTOOL

//#include "tool.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "transop.h"

/********************************************************************************************
>   class DragTool : public Tool_v1

    Author:     Karim_MacDonald (Xara Group Ltd) <camelotdev@xara.com>
    Created:    13/10/1999
    Purpose:    The Drag tool is a base class for the Selector and Slice tools.
                It acts to give these tools a common heritage, so that TransOperation,
                which handles dragging of objects, can maintain a pointer to them and inform
                them of various events during a drag. At some point in the future (ie maybe
                never, but we can hope...) it may be useful to pull common drag functionality
                up from these two tools, into a base implementation in this class.

                Currently, all the function definitions in this class are purely to allow
                TransOperation's pSelTool data member to be  changed from a SelectorTool*
                to a DragTool*. Default implementation in this class is simply to do nothing.

                CGS:

                The DragTool is also the base class for all tools which require selection
                ability.  A single interface is provided for this pupose:  OnClick ().
                OnClick () actually serves as a wrapper for our selection tool - thereby
                allowing all derived tools to harness the power of our selection tool.

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

class CCAPI DragTool : public Tool_v1
{
// own up in memory dumps
CC_DECLARE_MEMDUMP(DragTool);

// Tool interface

public:
    // Function that allows the transform to tell the tool how things are going.
    virtual void DragMove(TransformBoundingData* pBoundingData);

    // This function returns TRUE if the given floating-point value exceeds the range
    // that FIXED16 numbers can represent.
    // *What* it is doing inside a Tool class, I don't know.
    static BOOL BeyondFixedRange(double fpFixedVal);

    // Notify the current tool of click events on the document...
    virtual void OnClick(DocCoord PointerPos, ClickType cType, ClickModifiers cMods, Spread* pSpread);

private:
    // Standard tool static vars
    static  TCHAR *FamilyName;                  // The Tools Family Name
    static  TCHAR *ToolName;                    // The Tool Name
    static  TCHAR *Purpose;                     // What the tool is for
    static  TCHAR *Author;                      // Who wrote it
};

#endif  // INC_DRAGTOOL

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