exagal.h

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// $Id: exagal.h 751 2006-03-31 15:43:49Z alex $
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 */
// Header file for example galleries

#ifndef INC_EXAGAL
#define INC_EXAGAL

#if FALSE
#include "gallery.h"


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

>   class ExampleGallery : public Gallery

    Author:     Alex_Bligh (Xara Group Ltd) <camelotdev@xara.com>
    Created:    22/06/1994
    Purpose:    Class for handling an example GalleryBarOp

    Notes:      This provides a very basic example to get you started on galleries.
                However, it is recommended that you use the colour gallery as a more
                advanced example, and if you are basing your code on anything, then
                it is probably easier to rip functionality out of a cloned ColourGallery
                than to add the desired functionality to the ExampleGallery.

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

class ExampleGallery : public Gallery
{
    CC_DECLARE_DYNCREATE( ExampleGallery )  

public:
    ExampleGallery();

    MsgResult Message(Msg* Message);


protected:      // Base<->Derived class interface
    BOOL PreCreate(void);
    BOOL PostCreate(void);
        // Initialise display-related stuff before/after the window is created

    BOOL DoRedrawAnItem(ListItem *Item, BOOL Large, UINT32 DisplayMode);
        // Redraws the given item appropriately for large/small mode, and
        // using the given derived class DisplayMode (see DoDisplayMode... below)
        // returns TRUE if it redrew successfully

    BOOL PrepareToDelete(void);
        // returns TRUE if the selection can be deleted, or FALSE if not
        // May alter the selection as appropriate (after getting user confirmation)

    BOOL DoDeleteSelection(void);
        // Force-deletes anything still remaining in the selection
        // returns TRUE if successful

    ListItem *DoCreateNewItem(ListItem *BasedOn);
        // Applies the appropriate action to create a new item, based upon
        // the 'BasedOn' item or the attribs of the document selection in some way
        // Returns NULL, or the new item

    void DoApplyItem(ListItem *ItemToApply);
        // Applies the appropriate action to apply the given item to the document

    BOOL DoRedefineItem(ListItem *ItemToRedefine);
        // Redefines the given item (allow the user to edit it for example)
        // Returns FALSE if the value of the item definitely has not changed
        // Returns TRUE if the item has changed, or if it is unknown whether it was changed

    StringBase *GetItemText(ListItem *TheItem);
        // Returns NULL, or a pointer to the text to use in the listbox.
        // This is an early development aid while we're waiting for the advent
        // of proper user-redraw.

    void SortModeHasBeenChanged(BOOL SetDerivedSortsToo);
        // Called when the display dialogue has set a new sort mode, to make the
        // Gallery (and related entities) redisplay its list in the new order.
        // Note that the base class method for this MUST be calleded in derivations

    BOOL DoSetDisplayModes(GalleryDisplayDlg *TheDialogue);
        // Called to set up the display mode combo box (large icons, full info etc)
        // This will call TheDialogue->SetDisplayModeName repeatedly to set all
        // available modes. Returns FALSE if there are no display modes.

    void DoDisplayModeChange(UINT32 NewDisplayMode);
        // Called when the user has chosen a display mode, with the index of the
        // mode in the given list. You should not need to take action here, as
        // the display mode is passed through to RedrawAnItem, but this is called
        // in case you wish to cache values before redraw...

    void DoShowMenu(void);
        // Pops up the Gallery menu
        // Menu choices will be handled by the derived class through the Ops system
        // or message handlers - the base class knows nothing of this process.

    BOOL SetAlsoButton(String_64 *TextToPutIn);
        // Called to set up the generic Gallery Display dialogue
        // Returns FALSE if no 'also set the sort mode for the xxxx' button is wanted
        // Returns TRUE, and fills in the text with an appropriate string if 
        // a button is wanted. See the ColourGallery for an example.
};
    


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

>   class ExampleGalleryBarOpCreate : public BarCreate

    Author:     Alex_Bligh (Xara Group Ltd) <camelotdev@xara.com>
    Created:    22/06/1994
    Purpose:    Class for creating ExampleGalleryBarOps.

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

class ExampleGalleryCreate : public BarCreate
{
public:
    DialogBarOp*    Create() { return (new ExampleGallery); }
};

#endif

#endif  // INC_EXAGAL

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