ngitem.h

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// $Id: ngitem.h 1282 2006-06-09 09:46:49Z alex $
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 */
/*
    $Header: /Camelot/kernel/ngitem.h 10    15/10/04 9:37 Gerry $
    Attribute gallery display items ans groups.
*/

#ifndef NGITEM_H
#define NGITEM_H

//#include "sgtree.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "justin3.h"

class Node;
class NodeRenderableInk;
class DocRect;
class IndexedColour;
class SGNameItem;
class SGNameProp;
class NodeSetProperty;


/***********************************************************************************************
>   class CCAPI SGNameGroup : public SGDisplayGroup

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    SeeAlso:    SGNameItem; NameGallery; SGDisplayItem
***********************************************************************************************/

class CCAPI SGNameGroup : public SGDisplayGroup
{
    CC_DECLARE_DYNAMIC(SGNameGroup);
public:
    // Creation & destruction.
    SGNameGroup(UINT32 idType, UINT32 idTitle, Document* pDoc = 0);

    // Returns a string ID that describes the type of items in this group.
    UINT32 GetTypeID() const;

    // Returns TRUE if the given node is a member of the named set within this group.
    virtual BOOL IsMember(Node* pNode, const StringBase& strName) const = 0;

    // Register the node and all the values (names) of the sets it is a member of
    // (ie. create display items for them, if necessary).  Returns FALSE for error.
    virtual BOOL CreateItems(Node* pNode) = 0;

    // Returns the address of the item with the given name, or null if there isn't one.
    SGNameItem* FindItem(const StringBase& strName) const;

    // If necessary, creates a new display item with the given name for the set that
    // the node is a member of.  Includes the bounds of the node in the bounds of the
    // set etc.
    SGNameItem* RegisterMember(Node* pNode, const StringBase& strName);

protected:

    // Return a newly-created display item.
    virtual SGNameItem* MakeItem(const StringBase& strName) const;

    //  Seize back control of the group's title.
    virtual void ReadGroupTitle();

private:
    // Data.
    const UINT32 m_idType;      // eg. 'name', 'font', 'bitmap' ...
    const UINT32 m_idTitle;     // eg. 'Used names', 'Used fonts', 'Used bitmaps' ...
};



/***********************************************************************************************
>   class CCAPI SGNameItem : public SGDisplayItem

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Purpose:    Represents an item in the Name gallery's display.
    SeeAlso:    NameGallery; SuperGallery; SGDisplayItem
***********************************************************************************************/

class CCAPI SGNameItem : public SGDisplayItem
{
public:
    // Creation & destruction.
    SGNameItem(const StringBase& strName);

    // return a cached ptr to this sets property node
    NodeSetProperty* GetPropertyNode();
    void ResetCachedPropertyNode()                      { m_pCachedPropertyNode = 0; }

    // Set contents and selection status etc
    BOOL IsABackBar();
    BOOL IsEqual(const StringBase& strOther) const;
    BOOL IsEmpty() const;
    BOOL IsAllSelected() const;
    BOOL IsNoneSelected() const;
    BOOL IsExclusivelySelected() const;
    BOOL IsMember(Node* pNode) const
            { return ((SGNameGroup*) GetParent())->IsMember(pNode, m_strName); }

    // Low level contents status.
    INT32 GetNodeCount() const;
    INT32 GetObjectCount() const;
    INT32 GetSelectedCount() const;

    // Bounding boxes.
    const DocRect& GetSetBounds() const;
    const DocRect& GetOldSetBounds() const;
    const DocRect& GetSetSelectedBounds() const;
    BOOL HasChangedBounds() const
            { return m_rSetBounds != m_rOldSetBounds; }

    // sjk added this nasty backdoor for the meantime
    void SetSetBounds(const DocRect& r)                     { m_rSetBounds = r; }

    // Property management.
    SGNameProp* GetProperty(INT32 nIndex = -1) const;

    // Characteristics of this display item.
    virtual void GetNameText(String_256* pResult);
    virtual const String_256* GetNameTextPtr() const    { return &m_strName; };

    // Refresh and calculation of bounds and selection state.
    void Reset(BOOL fPropagateChanges = TRUE);
    void Include(Node* pNode);

    // Modify sorting comparisons so they take account of appended numbers.
    virtual INT32 CompareTo(SGDisplayNode* pOther, INT32 nKey);

    // Called when a drag operation turns out to be a mundane button click.
    virtual void DragWasReallyAClick(SGMouseInfo* pMouseInfo, SGMiscInfo* pMiscInfo);
    
protected:
    // Specialised UI.
    virtual void CalcUiBounds(SGFormatInfo* pFormatInfo, SGMiscInfo* pMiscInfo);
    virtual void DrawLabel(SGRedrawInfo* pRedrawInfo, SGMiscInfo* pMiscInfo);

    // UI state handlers.
    virtual BOOL GetBubbleHelp(DocCoord* pMousePos, String_256* pResult);
    virtual BOOL GetStatusLineHelp(DocCoord* pMousePos, String_256* pResult);
    
    // Gallery system event & redraw handlers.
    virtual void CalculateMyRect(SGFormatInfo* pFormatInfo, SGMiscInfo* pMiscInfo);
    virtual void HandleRedraw(SGRedrawInfo* pRedrawInfo, SGMiscInfo* pMiscInfo);
    virtual BOOL HandleEvent(SGEventType EventType, void* pEventInfo,
                             SGMiscInfo* pMiscInfo);

    // Data for UI specialisation.
    String_256  m_strName;                  // displayed name of this
    DocRect     m_rToggle;                  // UI bounds of the selection toggle gadget
    DocRect     m_rText;                    // UI bounds of the item's name label
    DocRect     m_rProp;                    // UI bounds of currently displayed property

    NodeSetProperty* m_pCachedPropertyNode; // a cached ptr to this sets property node
                                            // this is NULLed in Reset() and filled on demand
private:
    // Data for set creation & properties.
    DocRect     m_rSetBounds;               // accumulated bounds of objects in the set
    DocRect     m_rOldSetBounds;            // value of m_rSetBounds before last operation
    DocRect     m_rSelectBounds;            // accumulated bounds of selected objects in set
    INT32           m_nNodes;                   // count of nodes in the set of this
    INT32           m_nObjects;                 // count of objects in the set of this
    INT32           m_nSelected;                // count of selected objects in the set

    CC_DECLARE_DYNAMIC(SGNameItem);

public:
    // cached items of data stored in the name item
    // and used in the extending code
    BOOL     m_SetIsAffectedTrigger;    // used in FastApplyStretchScan to store sets that have changed size
    BOOL     m_IsATrigger;              // used in FastApplyStretchScan to store sets that appear in a trigger list
    BOOL     m_IsPartOfThisStretch;     // used in FastApplyStretchScan to store sets that have been extended
    INT32        m_BarNumber;               // set in FastUpdateNamedSetSizes and should be up-to-date if the bar data doesn't change in your op
    DocCoord m_Translation;             // set in the ShuffleBar function

};



/***********************************************************************************************
>   class CCAPI SGUsedNames : public SGNameGroup
    class CCAPI SGUsedFonts : public SGNameGroup
    class CCAPI SGUsedBitmaps : public SGNameGroup
    class CCAPI SGUsedColours : public SGNameGroup
    class CCAPI SGUsedColourItem : public SGNameItem

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Purpose:    NameGallery groups and items to manage the various types of attribute sets.
    SeeAlso:    NameGallery; SGNameGroup; SGNameItem
***********************************************************************************************/

class CCAPI SGUsedNames : public SGNameGroup
{
public:
    SGUsedNames()
      : SGNameGroup(_R(IDS_NAMEGAL_NAMES_TYPE), _R(IDS_NAMEGAL_NAMES_TITLE))
            { /* empty */ }

    virtual BOOL IsMember(Node*, const StringBase&) const;
    virtual BOOL CreateItems(Node*);
};



class CCAPI SGUsedFonts : public SGNameGroup
{
public:
    SGUsedFonts()
      : SGNameGroup(_R(IDS_NAMEGAL_TYPEFACES_TYPE), _R(IDS_NAMEGAL_TYPEFACES_TITLE))
            { /* empty */ }

    virtual BOOL IsMember(Node*, const StringBase&) const;
    virtual BOOL CreateItems(Node*);
};



class CCAPI SGUsedBitmaps : public SGNameGroup
{
public:
    SGUsedBitmaps()
      : SGNameGroup(_R(IDS_NAMEGAL_BITMAPS_TYPE), _R(IDS_NAMEGAL_BITMAPS_TITLE))
            { /* empty */ }

    virtual BOOL IsMember(Node*, const StringBase&) const;
    virtual BOOL CreateItems(Node*);
};



class CCAPI SGUsedColourItem : public SGNameItem
{
public:
    // Creation & destruction.
    SGUsedColourItem(const StringBase& strName)
      : SGNameItem(strName), m_picSample(0)
            { /* empty */ }

    // Set the colour associated with the given item.
    void SetPatchColour(IndexedColour* pCol)
            { m_picSample = pCol; }

protected:
    // Override default rendering to draw a colour patch beside the label.
    virtual void CalcUiBounds(SGFormatInfo*, SGMiscInfo*);
    virtual void DrawLabel(SGRedrawInfo*, SGMiscInfo*);

    DocRect         m_rPatch;                   // bounds of the coloured patch by the label
    IndexedColour*  m_picSample;                // reference to an named indexed colour
};



class CCAPI SGUsedColours : public SGNameGroup
{
public:
    SGUsedColours()
      : SGNameGroup(_R(IDS_NAMEGAL_COLOURS_TYPE), _R(IDS_NAMEGAL_COLOURS_TITLE))
            { /* empty */ }

    virtual BOOL IsMember(Node*, const StringBase&) const;
    virtual BOOL CreateItems(Node*);

protected:
    // SGUsedColours groups make special SGUsedColourItems which can render a
    // DocColour patch by their label.
    virtual SGNameItem* MakeItem(const StringBase& strName) const
            { return new SGUsedColourItem(strName); }

    static const StringBase* IsNamedColour(DocColour* pCol);
    SGUsedColourItem* RegisterMember(Node*, const StringBase&, DocColour* pCol);
};



/***********************************************************************************************
>   const DocRect& SGNameItem::GetSetBounds() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    The accumulated bounds of the objects with the set.
***********************************************************************************************/

inline const DocRect& SGNameItem::GetSetBounds() const
{
    return m_rSetBounds;
}



/***********************************************************************************************
>   const DocRect& SGNameItem::GetOldSetBounds() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    The accumulated bounds of the objects with the set prior to the last operation.
***********************************************************************************************/

inline const DocRect& SGNameItem::GetOldSetBounds() const
{
    return m_rOldSetBounds;
}



/***********************************************************************************************
>   const DocRect& SGNameItem::GetSetSelectedBounds() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    The accumulated bounds of the objects with the set.
***********************************************************************************************/

inline const DocRect& SGNameItem::GetSetSelectedBounds() const
{
    return m_rSelectBounds;
}



/***********************************************************************************************
>   INT32 SGNameItem::GetNodeCount() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    The number of selected objects included in this item's set.
***********************************************************************************************/

inline INT32 SGNameItem::GetNodeCount() const
{
    return m_nNodes;
}



/***********************************************************************************************
>   INT32 SGNameItem::GetObjectCount() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    The total number of objects included in this item's set.
***********************************************************************************************/

inline INT32 SGNameItem::GetObjectCount() const
{
    return m_nObjects;
}



/***********************************************************************************************
>   INT32 SGNameItem::GetSelectedCount() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    The number of selected objects included in this item's set.
***********************************************************************************************/

inline INT32 SGNameItem::GetSelectedCount() const
{
    return m_nSelected;
}



/***********************************************************************************************
>   BOOL SGNameItem::IsEmpty() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    TRUE if the item has no members (ie. total counter is zero).
***********************************************************************************************/

inline BOOL SGNameItem::IsEmpty() const
{
    return m_nObjects == 0;
}



/***********************************************************************************************
>   BOOL SGNameItem::IsAllSelected() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    TRUE if all the items in the set are selected.
***********************************************************************************************/

inline BOOL SGNameItem::IsAllSelected() const
{
    return m_nObjects > 0 && m_nSelected == m_nObjects;
}



/***********************************************************************************************
>   BOOL SGNameItem::IsNoneSelected() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    TRUE if no object within this item's set is selected.
***********************************************************************************************/

inline BOOL SGNameItem::IsNoneSelected() const
{
    return m_nSelected == 0;
}



/***********************************************************************************************
>   BOOL SGNameItem::IsExclusivelySelected() const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Returns:    TRUE if this item's set and the current selection are the same.
***********************************************************************************************/

inline BOOL SGNameItem::IsExclusivelySelected() const
{
    return IsAllSelected() && m_nObjects == (INT32) GetApplication()->FindSelection()->Count();
}



/***********************************************************************************************
>   BOOL SGNameItem::IsEqual(const StringBase& strOther) const

    Author:     Justin_Flude (Xara Group Ltd) <camelotdev@xara.com>
    Created:    27/6/99
    Inputs:     strOther    ---     'attribute value' to compare this item to
    Returns:    TRUE if this item has the same 'attribute value' as the input.
***********************************************************************************************/

inline BOOL SGNameItem::IsEqual(const StringBase& strOther) const
{
    return m_strName == strOther;
}

#endif  /* !NGITEM_H */

---