ngcore.h

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// $Id: ngcore.h 1282 2006-06-09 09:46:49Z alex $
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 */
/*
    $Header: /wxCamelot/Kernel/ngcore.h 18    17/11/05 15:31 Luke $
    Attribute gallery core object
*/

#ifndef NGCORE_H
#define NGCORE_H

//#include "sgallery.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "ktimer.h"

#include <list>

class SGNameGroup;
class SGNameItem;
class SGUsedNames;
class Node;
class NamedStretchProp;
class NodeBarProperty;

// no more than 25 objects can change size through a stretch at one time
#define MAX_SIM_EXTENDS     35

// there can be no more than 20 bars in a single document
#define MAX_BARS            100


/***********************************************************************************************
>   class CCAPI NameGallery : public SuperGallery

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/5/99
    Purpose:    Core object of the Camelot naming system.
    SeeAlso:    SuperGallery
***********************************************************************************************/

class CCAPI NameGallery : public SuperGallery
{
public:
    // Creation & destruction.
    NameGallery();
    virtual ~NameGallery();
    static NameGallery* Instance();

    // Display groups and items.
    SGNameGroup* GetFirstGroup();
    SGUsedNames* GetUsedNames();

    // Item properties.
    INT32 GetPropertyIndex() const;
    INT32 SetPropertyIndex(INT32 nNewIndex);

    // UI state helper.  Returns how many items of each type are highlighted by the user.
    void GetHighlightCount(INT32* pnTotalItems, INT32* pnJustNames);

    // Call this to force an immediate update of the gallery's display, and thereby the
    // status of the document's sets.
    void ForceUpdate();
    BOOL FastUpdateNamedSetSizes(BOOL PropagateChanges = TRUE);
    BOOL FastApplyStretchScan(ObjChangeParam & ObjChange);

    String_256  m_BarToIgnoreTargetsOf;
    String_256  TheIgnoreBar() { return m_BarToIgnoreTargetsOf; }
    INT32 m_TouchedBar; // every item in this bar MAY has moved so sort it out


    // Called when the document has been changed.  Updates the targets of stretches whose
    // sources have changed bounds etc.
    BOOL PreTriggerEdit(UndoableOperation* pOp, ObjChangeParam* pParam, Range* pRange);
    BOOL PreTriggerEdit(UndoableOperation* pOp, ObjChangeParam* pParam, Node* pNode);
    BOOL PostTriggerEdit(UndoableOperation* pOp, ObjChangeParam* pParam);

    BOOL OnTimerEvent();

protected:
    // Event & redraw handlers.
    virtual BOOL PreCreate();
    virtual MsgResult Message(Msg* pMessage);
    virtual void DisplayDirty();
    virtual BOOL OnIdleEvent();
    
    // SuperGallery UI handlers.
    virtual void SetVisibility(BOOL fOpen);
    virtual BOOL InitMenuCommands();
    virtual BOOL BuildCommandMenu(GalleryContextMenu* pMenu, SGMenuID id);
    virtual void DoCommand(StringBase* pstrCommandID);
    virtual OpState GetCommandState(StringBase* pstrCommandID, String_256* pstrShadeReason);
    virtual BOOL ApplyAction(SGActionType nAction);
    virtual void SelectionHasChanged();

    BOOL CreateDisplayTree(); // initialises the display tree

    // bar handling functions
    void ResetRelationshipRects(SGNameItem* pTarget, NamedStretchProp* pProp,
                                DocRect* pCleanTargetRect = 0, DocRect* pKnownTriggerRect = 0);
    void ShuffleBar(INT32 BarNumber, INT32 Spacing, INT32 BarDirection,
                    SGUsedNames* pNames, Spread * pSpread, ObjChangeParam & ObjChange);

    BOOL ExpandVirtualTriggers(INT32 ExpandType, INT32 BarNo, DocRect &r1);

private:
    // Data.
    SGUsedNames*        m_pUsedNames;           // cached ptr to 'Used Names' display group
    INT32                   m_nPropertyIndex;       // type of item property being displayed
    UINT32              m_nRefresh;             // non-zero if gallery display needs redrawing
    UINT32              m_nHiddenUpdates;       // non-zero if doc changed while gallery hidden
    BOOL                m_fMenusCreated;        // TRUE if menus have been created
    BOOL                m_fChildChanges;        // TRUE if must send child-change messages
    UndoableOperation*  m_LastOpUsed;           // the ptr to the op given in PreTrigger and reused in PostTrigger

    static NameGallery* m_pInstance;            // the global instance of the gallery

    BOOL                m_bResetARelationship;  // gets set when calling ResetRelationships

    // bar size data is required to make the buttons the same size
    // since they are required to be the size of the largest, we need to know the largest
    // element of every bar.
    struct BarSizeType
    {
        DWORD MaxWidth;
        DWORD MaxHeight;
        BYTE  TriggeredBar;
        BYTE  HasABackBar;
    } m_BarSize[MAX_BARS];

    // Matt - 06/02/2001
    // Accessor and Mutator Functions for m_BarSize[] BarSizeType...
    BOOL  SetBSTData(INT32 Index, DWORD MaxWidth, DWORD MaxHeight, BYTE TriggeredBar, BYTE HasABackBar);
    DWORD GetBSTMaxWidth(INT32 Index)       { if (Index < MAX_BARS) { return m_BarSize[Index].MaxWidth;     } else { ERROR3("Out of range m_BarSize[] index!"); return 0; }};
    DWORD GetBSTMaxHeight(INT32 Index)  { if (Index < MAX_BARS) { return m_BarSize[Index].MaxHeight;    } else { ERROR3("Out of range m_BarSize[] index!"); return 0; }};
    BYTE  GetBSTTriggeredBar(INT32 Index) { if (Index < MAX_BARS) { return m_BarSize[Index].TriggeredBar; } else { ERROR3("Out of range m_BarSize[] index!"); return 0; }};
    BYTE  GetBSTHasABackBar(INT32 Index)  { if (Index < MAX_BARS) { return m_BarSize[Index].HasABackBar;  } else { ERROR3("Out of range m_BarSize[] index!"); return 0; }};

private:
    class NameGalleryTimer : public KernelTimer
    {
    public:
        NameGalleryTimer(NameGallery * pOwner) : m_pOwner(pOwner) {}
        virtual void Notify() {m_pOwner->OnTimerEvent();}
        NameGallery * m_pOwner;
    };
    NameGalleryTimer m_Timer;

    CC_DECLARE_DYNCREATE(NameGallery)
};

#endif  /* !NGCORE_H */

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