sgframe.h

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// $Id: sgframe.h 1282 2006-06-09 09:46:49Z alex $
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 */

// SGFrame.h - the FrameSGallery (Frame SuperGallery) class
// Looks remarkably like the layer gallery but looks aren't everything!

#ifndef INC_SGFRAME
#define INC_SGFRAME

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

#include "layergal.h"

#include "sglayer.h"
#include "bmpprefs.h"  // For PALETTE Type
//#include "quality.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "paldefs.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "animparams.h" - in camtypes.h [AUTOMATICALLY REMOVED]

class DocView;
class UndoableOperation;

#ifndef EXCLUDE_GALS
/***********************************************************************************************

>   class SGDisplayFrame : public SGDisplayLayer

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> (Based on Jason's Layer gallery code)
    Created:    16/4/97 (Based on Jason's Layer gallery code)
    Purpose:    This DisplayTree node is used by the Layer SuperGallery
                It is responsible for providing the ability to handle/redraw one Layer
                displayed in said gallery.

    SeeAlso:    FrameSGallery; SuperGallery; SGDisplayItem

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

class CCAPI SGDisplayFrame : public SGDisplayLayer
{
friend class SGLayerGroup;      // Allows access to CalculateButtonRects
friend class SGFrameGroup;      // Allows access to CalculateButtonRects

    CC_DECLARE_DYNAMIC(SGDisplayFrame);

public:
    SGDisplayFrame();
    SGDisplayFrame(Layer *LayerToDisplay);
    ~SGDisplayFrame();

    virtual BOOL HandleEvent(SGEventType EventType, void *EventInfo,
                             SGMiscInfo *MiscInfo);

    virtual void MoveLayer(SGDisplayNode *NodeToMove,BOOL Before,BOOL ToggleBackground);

protected:  // Internal handlers
    virtual void HandleRedraw(SGRedrawInfo *RedrawInfo, SGMiscInfo *MiscInfo);
            // Redraws the item into the current FormatRect

    virtual void DoChangeState(OpLayerGalReason Reason,BOOL NewState);
            // Changes the state of the layer this object displays, in some way

    virtual void ChangeRangeState(SGDisplayFrame *Start, SGDisplayFrame *End,
                                  BOOL Range, INT32 WhichButton, SGMiscInfo *MiscInfo);
            // Changes the state (visible or locked) of a range of layers


private:        // Special member variables
    static SGDisplayFrame *LastClickedLayer;        // Remembers the last layer clicked on (for shift-clicks)
};



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

>   class SGFrameGroup : public SGLayerGroup

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> (Based on Jason's Layer gallery code)
    Created:    16/4/97 (Based on Jason's Layer gallery code)
    Purpose:    This is a display tree group specifically for the layer gallery - it disables
                group things like folding, and provides column headings for the layers display.
    SeeAlso:    SuperGallery; SGDisplayGroup;

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


class CCAPI SGFrameGroup : public SGLayerGroup
{
    CC_DECLARE_DYNAMIC(SGFrameGroup);

public:
    SGFrameGroup(SuperGallery *ParentGal,
                    Document *ParentDoc = NULL, Library *ParentLib = NULL, BOOL IsForeground = TRUE);

    virtual BOOL HandleEvent(SGEventType EventType, void *EventInfo,
                             SGMiscInfo *MiscInfo);
        // Handles a display list event (redraw, mouse click, etc)

    // Is this group the foreground layer group (TRUE) or the background layer group (FALSE)
    BOOL IsForeground() { return Foreground; }

private:
    BOOL Foreground;
};

#endif


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

>   class FrameSGallery : public LayerSGallery

    Author:     Neville_Humphrys (Xara Group Ltd) <camelotdev@xara.com> (Based on Jason's Layer gallery code)
    Created:    16/4/97 (Based on Jason's Layer gallery code)
    Purpose:    The Layer SuperGallery class

    Notes:      SuperGalleries are specced in a number of docs including
                    specs\sgallery.doc ("super" gallery extensions)
                    specs\propui.doc  (gallery basic ui)
                There is also howtouse\sgallery.doc which describes creating a supergallery

    SeeAlso:    SuperGallery; SGDisplayFrame

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

#ifdef EXCLUDE_GALS
class FrameSGallery : public Operation
#else
class FrameSGallery : public LayerSGallery
#endif
{
    CC_DECLARE_DYNCREATE(FrameSGallery)

public:
    FrameSGallery();
    ~FrameSGallery();

#ifndef EXCLUDE_GALS
    virtual MsgResult Message(Msg* Message);


protected:              // Overridden upcall methods
    virtual BOOL PostCreate(void);

    virtual BOOL ApplyAction(SGActionType Action);

    virtual void DoShadeGallery(BOOL ShadeIt);

public:         // Overridden Command interface (for Ops and menu support)
    virtual BOOL InitMenuCommands(void);
        // Called on startup to initialise any desired menu commands. Will make repeated calls
        // to InitMenuCommand(), below.

    virtual BOOL BuildCommandMenu(GalleryContextMenu *TheMenu, SGMenuID MenuID);
        // Builds the command menu for the given menu pop-up (over an item, or options button)

    virtual OpState GetCommandState(StringBase *CommandID, String_256 *ShadeReason);
        // Returns an OpState indicating the state of this command, much like an Op GetState

    virtual void DoCommand(StringBase *CommandID);
        // Attempts to "do" the given command. Should call down to the base class to handle
        // any commands it can't deal with.


public:             // Personal/Internal methods
    virtual void CreateNewSubtree(Document *ParentDoc, SGDisplayGroup *ExistingGroup = NULL);
            // Creates a new subtree group to display the Layers for the given document
            // If ExistingGroup != NULL, that group will be re-cached for the given doc


protected:      // Internal methods (directly ported from old LayerGallery class)
    virtual void EnsureSelSpreadSelectionIntegrity();
#endif

public:         // Public so SGDisplayLayer items can call them
    static void MakeActiveLayer(Layer* pNewActiveLayer, UndoableOperation * pUndoOp = NULL);
    
public:         // Public access functions for everybody who wants 'em
    static void SetActive(Document* pDoc,Layer* pLayer,BOOL state);
    static String_256 CreateUniqueLayerID(Spread* pSpread, const String_256 * pBaseName = NULL);

    // This function should be called before any frame related actions are carried out
    // It will ensure that all the visible layers are frame layers
    static BOOL EnsureFrameLayerIntegrity(Spread* pSpread);
    static BOOL DoHideNode(Node* pNodeToHide);

#ifndef EXCLUDE_GALS
protected:
    virtual SGDisplayLayer *GetSelectedLayerGalItem();

    virtual void DoMoveLayer(MoveLayerType Reason);

    virtual BOOL DoDeleteSelection(void);
    virtual void DoCreateNewItem(void);
    virtual void DoCopyLayer();

    // Special frame gallery related items
    virtual BOOL DoSaveAnimation();
    virtual BOOL DoPreviewAnimation();
    virtual BOOL DoFrameProperties();
    virtual BOOL DoRegenerateFrames();
    virtual BOOL DoRegenerateSingleFrame();

    // Ensure that the frame related buttons are greyed/ungreyed
    BOOL UpdateFrameRelatedButtons();

    // Function to determine the document mode.
    BOOL IsFrameMode(Document* pDoc);       

    // Function to close the frame gallery
    BOOL CloseFrameGallery();

    // Function to open the Layer gallery
    BOOL OpenLayerGallery();

    // Access functions to determine when a new document is born.
    void SetNewDocBorn(BOOL Val)    { m_NewDocBorn = Val;  }
    BOOL GetNewDocBorn()            { return m_NewDocBorn; }

public:
    // new specific frame gallery related functions
    static void DoChangeSolid(Layer* pLayer,BOOL Solid);
    static void DoChangeOverlay(Layer* pLayer,BOOL Overlay);
    // solid and overlay flags have changed or a new layer has become active
    // so fix up the visibility and locked nature of the other layers
    static void FixOtherLayers(Spread* pSpread);
    static void FixOtherLayersFromActive(Layer * pActiveLayer, UndoableOperation * pUndoOp = NULL);

protected:
    BOOL    m_NewDocBorn;   // Flag to determine when a new doc. is born.       

#endif
};

#endif

---