Changed code to get rid of a compiler warning about statement always being FALSE

[wxWidgets.git] / src / os2 / bmpbuttn.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        bmpbuttn.cpp
// Purpose:     wxBitmapButton
// Author:      David Webster
// Modified by:
// Created:     10/13/99
// RCS-ID:      $Id$
// Copyright:   (c) David Webster
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"

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

#include "wx/os2/private.h"


IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)

#define BUTTON_HEIGHT_FACTOR (EDIT_CONTROL_FACTOR * 1.1)

bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id, const wxBitmap& bitmap,
           const wxPoint& pos,
           const wxSize& size, long style,
#if wxUSE_VALIDATORS
           const wxValidator& validator,
#endif
           const wxString& name)
{
    m_buttonBitmap = bitmap;
    SetName(name);
#if wxUSE_VALIDATORS
    SetValidator(validator);
#endif

    parent->AddChild(this);

    m_backgroundColour = parent->GetBackgroundColour() ;
    m_foregroundColour = parent->GetForegroundColour() ;
    m_windowStyle = style;
    m_marginX = 0;
    m_marginY = 0;

    if ( style & wxBU_AUTODRAW )
    {
        m_marginX = wxDEFAULT_BUTTON_MARGIN;
        m_marginY = wxDEFAULT_BUTTON_MARGIN;
    }

    int x = pos.x;
    int y = pos.y;
    int width = size.x;
    int height = size.y;

    if (id == -1)
        m_windowId = NewControlId();
    else
        m_windowId = id;

    if ( width == -1 && bitmap.Ok())
        width = bitmap.GetWidth() + 2*m_marginX;

    if ( height == -1 && bitmap.Ok())
        height = bitmap.GetHeight() + 2*m_marginY;

    // TODO:
    /*
    m_hWnd = (WXHWND)CreateWindowEx
                   (
                    0,
                    wxT("BUTTON"),
                    wxT(""),
                    WS_VISIBLE | WS_TABSTOP | WS_CHILD | BS_OWNERDRAW ,
                    0, 0, 0, 0,
                    GetWinHwnd(parent),
                    (HMENU)m_windowId,
                    wxGetInstance(),
                    NULL
                   );
    */
    // Subclass again for purposes of dialog editing mode
    SubclassWin(m_hWnd);

    SetFont(parent->GetFont()) ;

    SetSize(x, y, width, height);

    return FALSE;
}

void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
{
    m_buttonBitmap = bitmap;
}

// TODO:
/*
bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
{
#if defined(__WIN95__)
    long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
    if (style & BS_BITMAP)
    {
        // Let default procedure draw the bitmap, which is defined
        // in the Windows resource.
        return FALSE;
    }
#endif

    LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;

    wxBitmap* bitmap = &m_buttonBitmap;

    UINT state = lpDIS->itemState;
    if ((state & ODS_SELECTED) && m_buttonBitmapSelected.Ok())
        bitmap = &m_buttonBitmapSelected;
    else if ((state & ODS_FOCUS) && m_buttonBitmapFocus.Ok())
        bitmap = &m_buttonBitmapFocus;
    else if ((state & ODS_DISABLED) && m_buttonBitmapDisabled.Ok())
        bitmap = &m_buttonBitmapDisabled;

    if ( !bitmap->Ok() )
        return FALSE;

    HDC hDC = lpDIS->hDC;
    HDC memDC = ::CreateCompatibleDC(hDC);

    HBITMAP old = (HBITMAP) ::SelectObject(memDC, (HBITMAP) bitmap->GetHBITMAP());

    if (!old)
        return FALSE;

    int x = lpDIS->rcItem.left;
    int y = lpDIS->rcItem.top;
    int width = lpDIS->rcItem.right - x;
    int height = lpDIS->rcItem.bottom - y;

    // Draw the face, if auto-drawing
    if ( GetWindowStyleFlag() & wxBU_AUTODRAW )
        DrawFace((WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom,
            ((state & ODS_SELECTED) == ODS_SELECTED));

    // Centre the bitmap in the control area
    int x1 = (int) (x + ((width - bitmap->GetWidth()) / 2));
    int y1 = (int) (y + ((height - bitmap->GetHeight()) / 2));

    if ( (state & ODS_SELECTED) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
    {
        x1 ++;
        y1 ++;
    }

    ::BitBlt(hDC, x1, y1, bitmap->GetWidth(), bitmap->GetHeight(), memDC, 0, 0, SRCCOPY);

    if ( (state & ODS_DISABLED) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
        DrawButtonDisable( (WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom, TRUE ) ;
    else if ( (state & ODS_FOCUS) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
        DrawButtonFocus( (WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom, ((state & ODS_SELECTED) == ODS_SELECTED));

    ::SelectObject(memDC, old);

    ::DeleteDC(memDC);

    return TRUE;
}
*/

void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
{
// TODO:
/*
  HPEN  oldp;
  HBRUSH    oldb ;

  HPEN penBorder;
  HPEN penLight;
  HPEN penShadow;
  HBRUSH brushFace;
  COLORREF ms_color;

    ms_color = GetSysColor(COLOR_WINDOWFRAME) ;
    penBorder = CreatePen(PS_SOLID,0,ms_color) ;

    ms_color = GetSysColor(COLOR_BTNSHADOW) ;
    penShadow = CreatePen(PS_SOLID,0,ms_color) ;

    ms_color = GetSysColor(COLOR_BTNHIGHLIGHT) ;
    penLight = CreatePen(PS_SOLID,0,ms_color) ;

    ms_color = GetSysColor(COLOR_BTNFACE) ;
    brushFace = CreateSolidBrush(ms_color) ;

    oldp = (HPEN) SelectObject( (HDC) dc, GetStockObject( NULL_PEN ) ) ;
    oldb = (HBRUSH) SelectObject( (HDC) dc, brushFace ) ;
    Rectangle( (HDC) dc, left, top, right, bottom ) ;
    SelectObject( (HDC) dc, penBorder) ;
        MoveToEx((HDC) dc,left+1,top,NULL);LineTo((HDC) dc,right-1,top);
        MoveToEx((HDC) dc,left,top+1,NULL);LineTo((HDC) dc,left,bottom-1);
        MoveToEx((HDC) dc,left+1,bottom-1,NULL);LineTo((HDC) dc,right-1,bottom-1);
        MoveToEx((HDC) dc,right-1,top+1,NULL);LineTo((HDC) dc,right-1,bottom-1);

    SelectObject( (HDC) dc, penShadow) ;
    if (sel)
    {
        MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL) ;
        LineTo((HDC) dc,  left+1    ,top+1) ;
        LineTo((HDC) dc,  right-2   ,top+1) ;
    }
    else
    {
        MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL) ;
        LineTo((HDC) dc,  right-2   ,bottom-2) ;
        LineTo((HDC) dc,  right-2   ,top) ;
        MoveToEx((HDC) dc,left+2    ,bottom-3   ,NULL) ;
        LineTo((HDC) dc,  right-3   ,bottom-3) ;
        LineTo((HDC) dc,  right-3   ,top+1) ;

        SelectObject( (HDC) dc, penLight) ;

        MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL) ;
        LineTo((HDC) dc,  left+1    ,top+1) ;
        LineTo((HDC) dc,  right-2   ,top+1) ;
    }
    SelectObject((HDC) dc,oldp) ;
    SelectObject((HDC) dc,oldb) ;

  DeleteObject(penBorder);
  DeleteObject(penLight);
  DeleteObject(penShadow);
  DeleteObject(brushFace);
*/
}

#define FOCUS_MARGIN 6

void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right, int bottom, bool sel )
{
    // TODO:
/*
    RECT rect;
    rect.left = left;
    rect.top = top;
    rect.right = right;
    rect.bottom = bottom;
    InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN ) ;
    if ( sel )
        OffsetRect( &rect, 1, 1 ) ;
    DrawFocusRect( (HDC) dc, &rect ) ;
*/
}

// extern HBRUSH wxDisableButtonBrush;

void wxBitmapButton::DrawButtonDisable( WXHDC dc, int left, int top, int right, int bottom, bool with_marg )
{
// TODO:
/*
    HBRUSH  old = (HBRUSH) SelectObject( (HDC) dc, wxDisableButtonBrush ) ;

    if ( with_marg )
        ::PatBlt( (HDC) dc, left + m_marginX, top + m_marginY,
            right - 2 * m_marginX, bottom - 2 * m_marginY,
#ifdef __SALFORDC__
                0xfa0089L ) ;
#else
                0xfa0089UL ) ;
#endif
    else    ::PatBlt( (HDC) dc, left, top, right, bottom,
#ifdef __SALFORDC__
       0xfa0089L ) ;
#else
       0xfa0089UL ) ;
#endif
    ::SelectObject( (HDC) dc, old ) ;
*/
}

void wxBitmapButton::SetDefault()
{
    wxButton::SetDefault();
}