layergal.h

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// $Id: layergal.h 1282 2006-06-09 09:46:49Z 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.

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----------------------------------

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=================================XARAHEADEREND============================
 */
// The Layers Gallery header file

#ifndef INC_LAYERGAL
#define INC_LAYERGAL

//#include "dialogop.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "undoop.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "layer.h"

class LayerSGallery;

//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------

enum MoveLayerType
{
    MOVELAYER_UPONE,
    MOVELAYER_DOWNONE
};



//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------



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

>   class OpLayerGalParam: 

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    4/8/94
    Purpose:    Holds the parameters for the OpLayerGalChange to perform its stuff on
    SeeAlso:    -

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

enum OpLayerGalReason
{
    LAYER_NONE,
    LAYER_NEW,
    LAYER_DELETE,
    LAYER_CHANGE,
    LAYER_CHANGE_NAME,
    LAYER_MOVE,
    LAYER_COPY,
    LAYER_VISIBLE,
    LAYER_ALLVISIBLE,
    LAYER_LOCKED,
    LAYER_MULTILAYER,
    LAYER_TOGGLEBACKGROUND,
    // special frame flags
    LAYER_SOLID,
    LAYER_OVERLAY,
    LAYER_MAKEFRAME,
    LAYER_ACTIVE,
    // special frame related items
    FRAME_SELECT,
    FRAME_NEW,
    FRAME_COPY,
    FRAME_DELETE,
    FRAME_MOVE,
    FRAME_ALLVISIBLE,
    FRAME_MULTILAYER,
    // Special page background reason 
    PAGEBACKGROUND_DEFAULT      // actually deletes the page background layer
};

class OpLayerGalParam
{
public:

    Layer*              pLayer;
    LayerStatus         Status;
    BOOL                NewState;
    BOOL                ToggleBackground;
    Node*               pContextNode;
    LayerSGallery*      pLayerSGal;
    AttachNodeDirection AttDir;
    BOOL                MoveRedraw; // Flag that tells the LAYER_MOVE code whether it should redraw after the op

    // Vars used by LAYER_CHANGE
    BOOL        OldVisibleState;
    BOOL        OldLockedState;
    String_256  OldName;
    BOOL        VisibleState;
    BOOL        LockedState;
    String_256  NewName;

    OpLayerGalParam(OpLayerGalParam& Other)
    {
        pLayer           = Other.pLayer;
        Status           = Other.Status;
        NewState         = Other.NewState;
        ToggleBackground = Other.ToggleBackground;
        pContextNode     = Other.pContextNode;
        pLayerSGal       = Other.pLayerSGal;
        AttDir           = Other.AttDir;
        MoveRedraw       = Other.MoveRedraw;

        VisibleState     = Other.VisibleState;
        LockedState      = Other.LockedState;
        OldVisibleState  = Other.OldVisibleState;
        OldLockedState   = Other.OldLockedState;
        OldName          = Other.OldName;
        NewName          = Other.NewName;

        Reason           = Other.Reason;
        pParentSpread    = Other.pParentSpread;
    }

//-------------
    OpLayerGalParam(OpLayerGalReason ThisReason,Spread* pThisParentSpread)
     :  pLayer(NULL), ToggleBackground(FALSE),
        pContextNode(NULL), pLayerSGal(NULL),
        Reason(ThisReason), pParentSpread(pThisParentSpread)  { /* empty */ }

    OpLayerGalParam() : pLayer(NULL), ToggleBackground(FALSE),
        pContextNode(NULL), pLayerSGal(NULL),
        Reason(LAYER_NONE), pParentSpread(NULL)  { /* empty */ }

    Spread*             GetParentSpread()   { return pParentSpread; }
    OpLayerGalReason    GetReason()         { return Reason; }

private:
    // These params can only be initialised via the constructor
    OpLayerGalReason    Reason;
    Spread*             pParentSpread;
};


//-----------------------------------------------------------------------
//-----------------------------------------------------------------------

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

>   class LayerStateAction : public Action

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/11/94
    Purpose:    An action which changes the state of a layer or the layer system
    SeeAlso:    -

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

class LayerStateAction : public Action
{

CC_DECLARE_DYNCREATE(LayerStateAction)

public:
    LayerStateAction();
    ~LayerStateAction();
    virtual ActionCode Execute();
    static ActionCode Init( UndoableOperation* pOp,
                            ActionList* pActionList,
                            OpLayerGalParam Param);
protected:
    OpLayerGalParam Param;
};

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

>   class OpLayerGalChange: public UndoableOperation

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    4/8/94
    Purpose:    Performs an undoable change (new, delete, change) to a single layer.
    SeeAlso:    -

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

#define OPTOKEN_LAYERGALCHANGE      _T("LayerGalChange")        // Optoken for the layer gallery change operation 

class CCAPI OpLayerGalChange: public UndoableOperation
{         

    CC_DECLARE_DYNCREATE( OpLayerGalChange );

public:
    OpLayerGalChange();                             
    static BOOL     Init();             
    static OpState  GetState(String_256*, OpDescriptor*);       
    void            DoWithParam(OpDescriptor*, OpParam* pOpParam);            
    void            GetOpName(String_256* OpName);
    static BOOL     IsFrameMode();          

    BOOL DoInvalidateLayerRegion(Layer* pLayer);

    virtual BOOL Undo(); 
    virtual BOOL Redo();    

    // Karim 21/01/2000 - see UndoableOperation base implementation.
    virtual BOOL MayChangeNodeBounds() const { return TRUE; }

private:
    OpLayerGalReason    Reason;
    Spread*             pSpread;
    Layer*              pOpUndoLayer;   // Ptr to a layer relevent to op reason when an Undo occurs
    Layer*              pOpRedoLayer;   // Ptr to a layer relevent to op reason when a Redo occurs
    UINT32              UndoIDS;
    BOOL                BroadcastLayerChanges;
};  

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

>   class CCAPI OpDeletePageBackground : public OpLayerGalChange

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    10/4/97
    Purpose:    Performs an undoable change of deleting the page background layer.
    SeeAlso:    -

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

#define OPTOKEN_DELETEPAGEBACKGROUND    _T("DeletePageBackground")

class CCAPI OpDeletePageBackground : public OpLayerGalChange
{         
    CC_DECLARE_DYNCREATE( OpDeletePageBackground );

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

    void Do( OpDescriptor * pOpDesc );
};  



//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------



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

>   class LayerDlgParam: 

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    10/8/94
    Purpose:    Holds the parameters for the LayerNameDlg to perform its stuff on
    SeeAlso:    -

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

class LayerDlgParam
{
public:

    LayerDlgParam(OpLayerGalReason ThisReason,Spread* pThisSpread,Layer* pThisLayer)
     : Reason(ThisReason),pSpread(pThisSpread), pLayer(pThisLayer) { /* empty */ }

    OpLayerGalReason    GetReason() { return Reason; }
    Spread*             GetSpread() { return pSpread; }
    Layer*              GetLayer()  { return pLayer; }

private:
    // These params can only be initialised via the constructor
    OpLayerGalReason    Reason;
    Spread*             pSpread;
    Layer*              pLayer;
};



#define OPTOKEN_LAYERNAMEDLG _T("LayerNameDlg")

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

>   class LayerNameDlg: public DialogOp

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/6/94
    Purpose:    Allows the user to edit the parts of a layer.
    SeeAlso:    -

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

class LayerNameDlg: public DialogOp
{         
    CC_DECLARE_DYNCREATE( LayerNameDlg )  
public:

    LayerNameDlg();
    void DoWithParam(OpDescriptor*,OpParam*);       // "DoWithParam" function        
    BOOL Create(); 

    static const INT32 IDD;
    static const CDlgMode Mode;

    static OpState GetState(String_256*, OpDescriptor*);    
    static BOOL Init();                        
    static void StartUp(LayerDlgParam* pParam);

    virtual MsgResult Message(Msg* Message);

    void ShowLayerDetails();
    void CommitDialogValues();

private:
    static void CreateUniqueLayerCopyName(const String_256& strName, String_256* pCopyName);

    Layer*              pLayer;
    Spread*             pSpread;
    OpLayerGalReason    Reason;

    static BOOL          IsOpen;
    static LayerNameDlg* pLayerNameDlg;
}; 



//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------

#define OPTOKEN_DISPLAYLAYERGALLERY _T("DisplayLayerGallery")   // Optoken for the display layer gallery operation

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

>   class OpDisplayLayerGallery: public Operation

    Author:     Mark_Neves (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/8/94
    Purpose:    Displays the layers gallery. This op can be attached to a menu, button or keypress
    SeeAlso:    -

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

class CCAPI OpDisplayLayerGallery: public Operation
{         
    CC_DECLARE_DYNCREATE( OpDisplayLayerGallery );

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


//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------
//-------------------------------------------------------------------------------

#define OPTOKEN_DISPLAYFRAMEGALLERY _T("DisplayFrameGallery")   // Optoken for the display frame gallery operation

PORTNOTE("galleries", "Disable frame gallery")
#ifndef EXCLUDE_FROM_XARALX
/********************************************************************************************

>   class OpDisplayFrameGallery: public Operation

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com>
    Created:    16/4/97
    Purpose:    Displays the frame gallery. This op can be attached to a menu, button or keypress
    SeeAlso:    -

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

class CCAPI OpDisplayFrameGallery: public Operation
{         
    CC_DECLARE_DYNCREATE( OpDisplayFrameGallery );

public:
    static BOOL     Init();             
    static OpState  GetState(String_256*, OpDescriptor*);       
    void            Do(OpDescriptor*);
};  
#endif // EXCLUDE_FROM_XARALX

#endif  // INC_LAYERGAL

---