sglfills.h

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// $Id: sglfills.h 1282 2006-06-09 09:46:49Z alex $
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 */
// SGLFills.h - the Fills library gallery class


#ifndef INC_SGLFILLS
#define INC_SGLFILLS

//#include "sgallery.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "sgtree.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "sgscan.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "sglib.h"
#include "dragbmp.h"
#include "sgdrag.h"
#include "scrcamvw.h"

// LibraryGallery
#include "sglbase.h"

enum CALLRESULT {FAILURE = 0, SUCCESS, PENDING}; 

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

>   class LibFillsSGallery : public LibraryGallery

    Author:     Richard_Millican (Xara Group Ltd) <camelotdev@xara.com> (Based on Clipart gallery code by Richard / Jason)
    Created:    23/3/95
    Purpose:    The LibFills 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; SGDisplayLibFills

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

class LibFillsSGallery : public LibraryGallery
{
    CC_DECLARE_DYNCREATE(LibFillsSGallery)

public:
    LibFillsSGallery();
    ~LibFillsSGallery();

    // TRUE if the SuperGallery is also a LibraryGallery & has no non-library groups
    virtual BOOL IsLibraryGalleryWithNonLibraryGroups(void) {return TRUE;};

public:

    // Initialise the fills gallery
    static BOOL Init(void);

    // Fills gallery message handler
    virtual MsgResult Message(Msg* Message);

    // Can we search keywords ? Yes, I think we can
    virtual BOOL CanSearchKeywords(void);

public:
    // These _MUST_ be overridden by LibraryGalleries

    // Can we create indexes ?
    virtual BOOL CanCreateIndexes(void);

    // Get various default bits 'n' pieces
    virtual BOOL GetDefaults(String_256 *DefaultIndex, String_256 *IndexDesc, SGLibType *Type);

    // Get the default CD directory name for the gallery
    virtual BOOL GetLibraryDirectoryName(String_256 *LibDirName);

    // Check the entry in the index.txt file with our gallery, and return TRUE if it's a match
    virtual BOOL CheckForIndexMatch(StringBase *Txt);

    // Returns the section name to use in the grm file
    virtual void WorkOutSectionName(String_256 *Section);

    // Get the quiet status of the gallery
    virtual BOOL GetQuietStatus(void);

    // Set the quiet status of the gallery
    virtual void SetQuietStatus(BOOL Status);

    // Scan for location of default CD library
    virtual BOOL ScanForLocation(SGLibType Type, StringBase *Result);

    // Return gallery type
    virtual SGLibType GetGalleryType() { return SGLib_Fractal;}

    virtual String_256* GetDefaultLibraryPath() {return &DefaultLibraryPath;}

    void SelectionHasChanged(void);

protected:      // Overridden upcall methods

    void DoShadeGallery(BOOL ShadeIt);

    virtual BOOL PreCreate(void);

    virtual BOOL ApplyAction(SGActionType Action);

    // Override for creating fill library groups rather than display groups
    virtual SGDisplayGroup *AddLibraryGroup(Library *LibraryToDisplay, INT32 NumItems);

    // Adds an item to the given library display group
    // Must be overridden by derived galleries if they wish to handle Libraries
    virtual SGDisplayItem *AddLibraryItem(SGDisplayGroup *LibraryGroup, Library *ParentLib,
                                            LibraryIndex ItemIndex, BOOL bNew = FALSE);

    void HandleDragStart(DragMessage *DragMsg);

    // Use the currently selected item in the fills gallery to do a fill
    // of type FillType
    bool FillUsingFillGallerySelection(FillTypeEnum FillType);

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.


protected:
    // Handle clicks on the browse button
    BOOL BrowseClicked(void);

    // Sort the entire gallery alphabetically
    void SortGallery(void);

    SGDisplayItem *CopyDisplayItem(SGDisplayItem *SourceItem, 
                                SGDisplayGroup *DestGroup, SGDisplayItem *TargetPosition);

    KernelBitmap* GetSelectedBitmap(void);

public:         // ini file options
    // Where to find the default library
    static String_256 DefaultLibraryPath;

    // For keeping the display modes constant when next loaded
    static INT32 DefaultDisplayMode;

    // For storing sort modes across quits
    static UINT32 DefaultSortKeys;

public:
    // This gallery
    static LibFillsSGallery *ThisGallery;

    // Quiet status of the gallery
    static BOOL QuietStatus;
};
                                  

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

>   class OpDisplayLibFillsGallery: public Operation

    Author:     Richard_Millican (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/3/95 (Based on the Clipart SGallery code)

    Purpose:    Displays the LibFills gallery.
                This op can be attached to a menu, button or keypress
    SeeAlso:    LibFillsSGallery

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

#define OPTOKEN_DISPLAYFILLSGALLERY _T("DisplayFillsGallery")

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

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

private:
    static DialogBarOp *FindGallery(void);
            // Finds the LibFills gallery class instance
};  

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

>   class SGFillsItem: public SGLibDisplayItem

    Author:     Richard_Millican (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/3/95

    Purpose:    A fills gallery item
    SeeAlso:
    
********************************************************************************************/

class SGFillsItem: public SGLibDisplayItem
{         
    CC_DECLARE_DYNCREATE( SGFillsItem );
public:
    SGFillsItem();
    ~SGFillsItem();
    SGFillsItem(LibraryIndex LibraryIndexToDisplay, BOOL bNew = FALSE);
    LibDisplayType GetDisplayType(SGMiscInfo *MiscInfo);

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

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

>   class GalleryFillsDragInfo : public BitmapDragInformation

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Created:    8/4/95
    Purpose:    A fill drag, which was started from the fill gallery
    SeeAlso:    BitmapDragInformation
                
********************************************************************************************/

class GalleryFillsDragInfo : public BitmapDragInformation
{ 
    CC_DECLARE_DYNCREATE(GalleryFillsDragInfo)
 
public:
    GalleryFillsDragInfo();
    ~GalleryFillsDragInfo();
    GalleryFillsDragInfo(   SGFillsItem *pSourceItem,
                            SGMouseInfo *pMouseInfo, SGMiscInfo *pMiscInfo,
                            BOOL IsAdjust = FALSE, INT32 XSize = 0, INT32 YSize = 0);

    virtual void OnClick(INT32 Flags, POINT Point);

    virtual UINT32 GetCursorID(DragTarget* pDragTarget);
    virtual BOOL GetStatusLineText(String_256 * TheText, DragTarget* pDragTarget);

    virtual BOOL CanDropOnPage() { return TRUE; };
    virtual BOOL OnPageDrop(ViewDragTarget*);

    SGFillsItem*    GetDraggedFill()    { return(SourceItem); }

protected:
    SGFillsItem*            SourceItem;
    SGMouseInfo             MouseInfo;
    SGMiscInfo              MiscInfo;
};



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

>   class   SGFillsDragTarget : public SGListDragTarget

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Created:    8/4/95

    Purpose:    An instantiation of this class is created by each entity which wishes to 
                provide a 'destination' to which the mouse can go to complete a drag.

                This particular target is used for handling drags of BitmapSGalllery items
                within their displayed list. It automatically handles drags with draginfo
                derived from BitmapDragInformation.

    Notes:      Drag targets are destructed automatically when a drag finishes by the drag
                manager with which they were registered.

                To remove a drag target at any time, destruct it - it automatically deregisters
                and cleans up.
                
    SeeAlso:    DragManagerOp::StartDrag; DragInformation; DragTarget;
                SGBitmapDragTarget::ProcessEvent

    Documentation:  Docs\Specs\DragMan.doc; Docs\HowToUse\SGallery.doc

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

class SGFillsDragTarget : public SGListDragTarget
{
friend class DragManagerOp;
    
CC_DECLARE_DYNAMIC(SGFillsDragTarget)

public: // Public interface
    SGFillsDragTarget(DialogOp *TheDialog, CGadgetID TheGadget = NULL);

protected:
        // Process a drag-related event
    virtual BOOL ProcessEvent(DragEventType Event,
                                DragInformation *pDragInfo,
                                OilCoord *pMousePos, KeyPress* pKeyPress);
};


#endif

---