//
// Name     : mmMultiButton
// Purpose  : A clickable button that can
//            - have a bitmap and/or a text label.
//            - function as a toggle ("on/off") button.
//            - turn active/inactive on entering/leaving it with the mouse.
//            - add a drop-down arrow to the bitmap in a separate section
//              (DROPDOWN) or as part of the bitmap (WHOLEDROPDOWN).
//
//            NOTE:
//            - mmMB_DROPDOWN and mmMB_WHOLEDROPDOWN cannot be used at
//              the same time.
//            - mmMB_STATIC and mmMB_AUTODRAW are mutually exclusive.
//
// Author   : Arne Morken
// Copyright: (C) 2000-2002 MindMatters, www.mindmatters.no
// Licence  : wxWindows licence
//

#ifndef _MMMULTIBUTTON_INCLUDED
#define _MMMULTIBUTTON_INCLUDED

#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WX_PRECOMP
    #include "wx/wx.h"
#endif

// mmMultiButton styles (re-use wxFrame/wxDialog style flags)

#define mmMB_FOCUS         0x0400 // Change bitmap on enter/leave.
#define mmMB_SELECT        0x0800 // Change bitmap on select.
#define mmMB_TOGGLE        0x1000 // Change bitmap on toggle.
#define mmMB_DROPDOWN      0x2000 // Draw a drop-down arrow in separate box.
#define mmMB_WHOLEDROPDOWN 0x4000 // Draw a drop-down arrow on the bitmap.
#define mmMB_STATIC        0x8000 // Do not react on mouse events.
#define mmMB_NO_AUTOSIZE   0x0020 // Button should use the given size, and
                                  // not resize itself to fit bitmap/label.
#define mmMB_AUTODRAW      0x0010 // Automatically manage drawing of bitmap,
		  		  // label and border.

// MultiButton events

const int mmEVT_MULTIBUTTON_FIRST = wxEVT_FIRST + 5400;

const wxEventType mmEVT_TOGGLE           = mmEVT_MULTIBUTTON_FIRST + 1;
const wxEventType mmEVT_WHOLEDROP_TOGGLE = mmEVT_MULTIBUTTON_FIRST + 2;
const wxEventType mmEVT_DROP_TOGGLE      = mmEVT_MULTIBUTTON_FIRST + 3;

#define EVT_TOGGLE(id, fn)           DECLARE_EVENT_TABLE_ENTRY(mmEVT_TOGGLE,           id, -1, (wxObjectEventFunction)(wxEventFunction)(wxCommandEventFunction)&fn, (wxObject*)NULL ),
#define EVT_WHOLEDROP_TOGGLE(id, fn) DECLARE_EVENT_TABLE_ENTRY(mmEVT_WHOLEDROP_TOGGLE, id, -1, (wxObjectEventFunction)(wxEventFunction)(wxCommandEventFunction)&fn, (wxObject*)NULL ),
#define EVT_DROP_TOGGLE(id, fn)      DECLARE_EVENT_TABLE_ENTRY(mmEVT_DROP_TOGGLE,      id, -1, (wxObjectEventFunction)(wxEventFunction)(wxCommandEventFunction)&fn, (wxObject*)NULL ),

//////////////////////////////////////////////////////////////////////////////

class mmMultiButton: public wxWindow
{
  DECLARE_DYNAMIC_CLASS(mmMultiButton)

  public:
    mmMultiButton() { }
    mmMultiButton(wxWindow *parent,
		  const wxWindowID id            = -1,
		  const wxString&  label         = wxEmptyString,
                        wxBitmap&  defaultBitmap = wxNullBitmap,
                  const wxPoint&   pos           = wxDefaultPosition,
                  const wxSize&    size          = wxDefaultSize,
		  const long int   style         = 0)
		  // Constructor.
		  // - parent: The button's parent.
		  // - id: Button identifier.
		  // - label: Optional label.
		  // - bitmapDefault: Optional default icon
		  // - pos: Position.
		  // - size: Size.
		  // - style: The following styles are available:
		  //   mmMB_AUTODRAW : Automatically manage drawing of bitmap,
		  //   		       label and border.
                  //   mmMB_FOCUS    : Change icon on enter/leave.
                  //   mmMB_SELECT   : Change icon on select.
                  //   mmMB_TOGGLE   : Change icon on toggle.
                  //   mmMB_STATIC   : Do not react on mouse events.
    { Create(parent, id, label, defaultBitmap, pos, size, style); }

    bool Create(wxWindow *parent,
                const wxWindowID id            = -1,
                const wxString&  label         = wxEmptyString,
                      wxBitmap&  defaultBitmap = wxNullBitmap,
                const wxPoint&   pos           = wxDefaultPosition,
                const wxSize&    size          = wxDefaultSize,
                const long int   style         = 0);

    void     SetDefaultBitmap(wxBitmap& bm);
    void     SetSelectedBitmap(wxBitmap& bm);
    void     SetFocusBitmap(wxBitmap& bm);
    void     SetToggleBitmap(wxBitmap& bm);

    void     SetLabel(wxString str); // Change button label.
    void     SetStyle(const long style); // Change style.
    void     SetFocus(const bool hasFocus);
    void     SetSelected(const bool isSelected);
    void     SetToggleDown(const bool isToggleDown);
    void     SetWholeDropToggleDown(const bool isWholeDropToggleDown);
    void     SetDropToggleDown(const bool isDropToggleDown);

    wxString GetLabel(void) const { return mLabelStr; }
             // Return the label of the button (if any).

    bool     IsToggleDown(void) const { return mIsToggleDown; }
             // Return TRUE if the button is pressed and WHOLEDROP is set
    bool     IsWholeDropPressed(void) const { return mIsWholeDropToggleDown; }
             // Return TRUE if the drop down arrow is pressed
    bool     IsDropToggleDown(void) const { return mIsDropToggleDown; }
             // Return TRUE if the drop down arrow is pressed
    bool     IsSelected(void) const { return mIsSelected; }
             // Return TRUE if the button is selected
    bool     HasFocus(void) const { return mHasFocus; }
             // Return TRUE if the button has focus

    bool     MouseIsOnButton();
             // Returns TRUE if mouse pointer is over the button

    bool     Enable(bool enable);

  private:
    DECLARE_EVENT_TABLE()

    void     OnPaint(wxPaintEvent& event);
    void     OnMouse(wxMouseEvent& event);

    void     RedrawBitmaps(wxDC& dc);
    void     RedrawLabel(wxDC& dc);
    void     RedrawBorders(wxDC& dc);

    void     FindAndSetSize();

    long     mStyle;
    wxString mLabelStr;

    bool     mHasFocus;              // TRUE if mouse is over button.
    bool     mIsActivated;           // TRUE if button is activated.
    bool     mIsToggleDown;          // TRUE if button is toggled down.
    bool     mIsWholeDropToggleDown; // TRUE if mouse down over drop arrow
    bool     mIsDropToggleDown;      // TRUE if mouse down over drop arrow
    bool     mIsSelected;            // TRUE if button is selected.

    int      mBorderSize;
    int      mMarginSize;

    wxBitmap* mDefaultBitmap;
    wxBitmap* mSelectedBitmap;
    wxBitmap* mFocusBitmap;
    wxBitmap* mToggleBitmap;
}; // class mmMultiButton

#endif