src/msw/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        bmpbuttn.cpp
   3 // Purpose:     wxBitmapButton
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "bmpbuttn.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24 #include "wx/bmpbuttn.h"
  25 #endif
  26
  27 #include "wx/msw/private.h"
  28
  29 #if !USE_SHARED_LIBRARY
  30 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
  31 #endif
  32
  33 #define BUTTON_HEIGHT_FACTOR (EDIT_CONTROL_FACTOR * 1.1)
  34
  35 bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id, const wxBitmap& bitmap,
  36            const wxPoint& pos,
  37            const wxSize& size, long style,
  38            const wxValidator& validator,
  39            const wxString& name)
  40 {
  41   m_buttonBitmap = bitmap;
  42   SetName(name);
  43   SetValidator(validator);
  44
  45   parent->AddChild(this);
  46
  47   m_backgroundColour = parent->GetBackgroundColour() ;
  48   m_foregroundColour = parent->GetForegroundColour() ;
  49   m_windowStyle = style;
  50   m_marginX = 0;
  51   m_marginY = 0;
  52
  53   if ( style & wxBU_AUTODRAW )
  54   {
  55     m_marginX = wxDEFAULT_BUTTON_MARGIN;
  56     m_marginY = wxDEFAULT_BUTTON_MARGIN;
  57   }
  58
  59   int x = pos.x;
  60   int y = pos.y;
  61   int width = size.x;
  62   int height = size.y;
  63
  64   if (id == -1)
  65     m_windowId = NewControlId();
  66   else
  67     m_windowId = id;
  68
  69   if ( width == -1 && bitmap.Ok())
  70     width = bitmap.GetWidth() + 2*m_marginX;
  71
  72   if ( height == -1 && bitmap.Ok())
  73     height = bitmap.GetHeight() + 2*m_marginY;
  74
  75   m_hWnd = (WXHWND)CreateWindowEx
  76                    (
  77                     0,
  78                     "BUTTON",
  79                     "",
  80                     WS_VISIBLE | WS_TABSTOP | WS_CHILD | BS_OWNERDRAW ,
  81                     0, 0, 0, 0,
  82                     GetWinHwnd(parent),
  83                     (HMENU)m_windowId,
  84                     wxGetInstance(),
  85                     NULL
  86                    );
  87
  88   // Subclass again for purposes of dialog editing mode
  89   SubclassWin(m_hWnd);
  90
  91   SetFont(parent->GetFont()) ;
  92
  93   SetSize(x, y, width, height);
  94
  95   return TRUE;
  96 }
  97
  98 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
  99 {
 100   m_buttonBitmap = bitmap;
 101 }
 102
 103 bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 104 {
 105 #if defined(__WIN95__)
 106     long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
 107     if (style & BS_BITMAP)
 108     {
 109         // Let default procedure draw the bitmap, which is defined
 110         // in the Windows resource.
 111         return FALSE;
 112     }
 113 #endif
 114
 115     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
 116
 117     wxBitmap* bitmap = &m_buttonBitmap;
 118
 119     UINT state = lpDIS->itemState;
 120     if ((state & ODS_SELECTED) && m_buttonBitmapSelected.Ok())
 121         bitmap = &m_buttonBitmapSelected;
 122     else if ((state & ODS_FOCUS) && m_buttonBitmapFocus.Ok())
 123         bitmap = &m_buttonBitmapFocus;
 124     else if ((state & ODS_DISABLED) && m_buttonBitmapDisabled.Ok())
 125         bitmap = &m_buttonBitmapDisabled;
 126
 127     if ( !bitmap->Ok() )
 128         return FALSE;
 129
 130     HDC hDC = lpDIS->hDC;
 131     HDC memDC = ::CreateCompatibleDC(hDC);
 132
 133     HBITMAP old = (HBITMAP) ::SelectObject(memDC, (HBITMAP) bitmap->GetHBITMAP());
 134
 135     if (!old)
 136         return FALSE;
 137
 138     int x = lpDIS->rcItem.left;
 139     int y = lpDIS->rcItem.top;
 140     int width = lpDIS->rcItem.right - x;
 141     int height = lpDIS->rcItem.bottom - y;
 142
 143     // Draw the face, if auto-drawing
 144     if ( GetWindowStyleFlag() & wxBU_AUTODRAW )
 145         DrawFace((WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 146             ((state & ODS_SELECTED) == ODS_SELECTED));
 147
 148     // Centre the bitmap in the control area
 149     int x1 = (int) (x + ((width - bitmap->GetWidth()) / 2));
 150     int y1 = (int) (y + ((height - bitmap->GetHeight()) / 2));
 151
 152     if ( (state & ODS_SELECTED) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
 153     {
 154         x1 ++;
 155         y1 ++;
 156     }
 157
 158     ::BitBlt(hDC, x1, y1, bitmap->GetWidth(), bitmap->GetHeight(), memDC, 0, 0, SRCCOPY);
 159
 160     if ( (state & ODS_DISABLED) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
 161         DrawButtonDisable( (WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom, TRUE ) ;
 162     else if ( (state & ODS_FOCUS) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
 163         DrawButtonFocus( (WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom, ((state & ODS_SELECTED) == ODS_SELECTED));
 164
 165     ::SelectObject(memDC, old);
 166
 167     ::DeleteDC(memDC);
 168
 169     return TRUE;
 170 }
 171
 172 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 173 {
 174   HPEN  oldp;
 175   HBRUSH    oldb ;
 176
 177   HPEN penBorder;
 178   HPEN penLight;
 179   HPEN penShadow;
 180   HBRUSH brushFace;
 181   COLORREF ms_color;
 182
 183     ms_color = GetSysColor(COLOR_WINDOWFRAME) ;
 184     penBorder = CreatePen(PS_SOLID,0,ms_color) ;
 185
 186     ms_color = GetSysColor(COLOR_BTNSHADOW) ;
 187     penShadow = CreatePen(PS_SOLID,0,ms_color) ;
 188
 189     ms_color = GetSysColor(COLOR_BTNHIGHLIGHT) ;
 190     penLight = CreatePen(PS_SOLID,0,ms_color) ;
 191
 192     ms_color = GetSysColor(COLOR_BTNFACE) ;
 193     brushFace = CreateSolidBrush(ms_color) ;
 194
 195     oldp = (HPEN) SelectObject( (HDC) dc, GetStockObject( NULL_PEN ) ) ;
 196     oldb = (HBRUSH) SelectObject( (HDC) dc, brushFace ) ;
 197     Rectangle( (HDC) dc, left, top, right, bottom ) ;
 198     SelectObject( (HDC) dc, penBorder) ;
 199         MoveToEx((HDC) dc,left+1,top,NULL);LineTo((HDC) dc,right-1,top);
 200         MoveToEx((HDC) dc,left,top+1,NULL);LineTo((HDC) dc,left,bottom-1);
 201         MoveToEx((HDC) dc,left+1,bottom-1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 202         MoveToEx((HDC) dc,right-1,top+1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 203
 204     SelectObject( (HDC) dc, penShadow) ;
 205     if (sel)
 206     {
 207         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL) ;
 208         LineTo((HDC) dc,  left+1    ,top+1) ;
 209         LineTo((HDC) dc,  right-2   ,top+1) ;
 210     }
 211     else
 212     {
 213         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL) ;
 214         LineTo((HDC) dc,  right-2   ,bottom-2) ;
 215         LineTo((HDC) dc,  right-2   ,top) ;
 216         MoveToEx((HDC) dc,left+2    ,bottom-3   ,NULL) ;
 217         LineTo((HDC) dc,  right-3   ,bottom-3) ;
 218         LineTo((HDC) dc,  right-3   ,top+1) ;
 219
 220         SelectObject( (HDC) dc, penLight) ;
 221
 222         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL) ;
 223         LineTo((HDC) dc,  left+1    ,top+1) ;
 224         LineTo((HDC) dc,  right-2   ,top+1) ;
 225     }
 226     SelectObject((HDC) dc,oldp) ;
 227     SelectObject((HDC) dc,oldb) ;
 228
 229   DeleteObject(penBorder);
 230   DeleteObject(penLight);
 231   DeleteObject(penShadow);
 232   DeleteObject(brushFace);
 233 }
 234
 235 #define FOCUS_MARGIN 6
 236
 237 void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 238 {
 239     RECT rect;
 240     rect.left = left;
 241     rect.top = top;
 242     rect.right = right;
 243     rect.bottom = bottom;
 244     InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN ) ;
 245     if ( sel )
 246         OffsetRect( &rect, 1, 1 ) ;
 247     DrawFocusRect( (HDC) dc, &rect ) ;
 248 }
 249
 250 extern HBRUSH wxDisableButtonBrush;
 251 void wxBitmapButton::DrawButtonDisable( WXHDC dc, int left, int top, int right, int bottom, bool with_marg )
 252 {
 253     HBRUSH  old = (HBRUSH) SelectObject( (HDC) dc, wxDisableButtonBrush ) ;
 254
 255     if ( with_marg )
 256         ::PatBlt( (HDC) dc, left + m_marginX, top + m_marginY,
 257             right - 2 * m_marginX, bottom - 2 * m_marginY,
 258 #ifdef __SALFORDC__
 259                 0xfa0089L ) ;
 260 #else
 261                 0xfa0089UL ) ;
 262 #endif
 263     else    ::PatBlt( (HDC) dc, left, top, right, bottom,
 264 #ifdef __SALFORDC__
 265        0xfa0089L ) ;
 266 #else
 267        0xfa0089UL ) ;
 268 #endif
 269     ::SelectObject( (HDC) dc, old ) ;
 270 }
 271