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     #include "wx/log.h"
  26     #include "wx/dcmemory.h"
  27 #endif
  28
  29 #include "wx/msw/private.h"
  30
  31 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
  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
  44 #if wxUSE_VALIDATORS
  45   SetValidator(validator);
  46 #endif // wxUSE_VALIDATORS
  47
  48   parent->AddChild(this);
  49
  50   m_backgroundColour = parent->GetBackgroundColour();
  51   m_foregroundColour = parent->GetForegroundColour();
  52   m_windowStyle = style;
  53   m_marginX = 0;
  54   m_marginY = 0;
  55
  56   if ( style & wxBU_AUTODRAW )
  57   {
  58     m_marginX = wxDEFAULT_BUTTON_MARGIN;
  59     m_marginY = wxDEFAULT_BUTTON_MARGIN;
  60   }
  61
  62   int x = pos.x;
  63   int y = pos.y;
  64   int width = size.x;
  65   int height = size.y;
  66
  67   if (id == -1)
  68     m_windowId = NewControlId();
  69   else
  70     m_windowId = id;
  71
  72   if ( width == -1 && bitmap.Ok())
  73     width = bitmap.GetWidth() + 2*m_marginX;
  74
  75   if ( height == -1 && bitmap.Ok())
  76     height = bitmap.GetHeight() + 2*m_marginY;
  77
  78         long msStyle = WS_VISIBLE | WS_TABSTOP | WS_CHILD | BS_OWNERDRAW ;
  79
  80     if ( m_windowStyle & wxCLIP_SIBLINGS )
  81         msStyle |= WS_CLIPSIBLINGS;
  82
  83 #ifdef __WIN32__
  84     if(m_windowStyle & wxBU_LEFT)
  85         msStyle |= BS_LEFT;
  86     if(m_windowStyle & wxBU_RIGHT)
  87         msStyle |= BS_RIGHT;
  88     if(m_windowStyle & wxBU_TOP)
  89         msStyle |= BS_TOP;
  90     if(m_windowStyle & wxBU_BOTTOM)
  91         msStyle |= BS_BOTTOM;
  92 #endif
  93
  94   m_hWnd = (WXHWND)CreateWindowEx
  95                    (
  96                     0,
  97                     wxT("BUTTON"),
  98                     wxT(""),
  99                     msStyle,
 100                     0, 0, 0, 0,
 101                     GetWinHwnd(parent),
 102                     (HMENU)m_windowId,
 103                     wxGetInstance(),
 104                     NULL
 105                    );
 106
 107   // Subclass again for purposes of dialog editing mode
 108   SubclassWin(m_hWnd);
 109
 110   SetFont(parent->GetFont());
 111
 112   SetSize(x, y, width, height);
 113
 114   return TRUE;
 115 }
 116
 117 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
 118 {
 119   m_buttonBitmap = bitmap;
 120 }
 121
 122 // VZ: should be at the very least less than wxDEFAULT_BUTTON_MARGIN
 123 #define FOCUS_MARGIN 3
 124
 125 bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 126 {
 127 #if defined(__WIN95__)
 128     long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
 129     if (style & BS_BITMAP)
 130     {
 131         // Let default procedure draw the bitmap, which is defined
 132         // in the Windows resource.
 133         return FALSE;
 134     }
 135 #endif
 136
 137     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
 138     HDC hDC                = lpDIS->hDC;
 139     UINT state             = lpDIS->itemState;
 140     bool isSelected        = (state & ODS_SELECTED) != 0;
 141     bool autoDraw          = (GetWindowStyleFlag() & wxBU_AUTODRAW) != 0;
 142
 143
 144     // choose the bitmap to use depending on the button state
 145     wxBitmap* bitmap;
 146
 147     if ( isSelected && m_buttonBitmapSelected.Ok() )
 148         bitmap = &m_buttonBitmapSelected;
 149     else if ((state & ODS_FOCUS) && m_buttonBitmapFocus.Ok())
 150         bitmap = &m_buttonBitmapFocus;
 151     else if ((state & ODS_DISABLED) && m_buttonBitmapDisabled.Ok())
 152         bitmap = &m_buttonBitmapDisabled;
 153     else
 154         bitmap = &m_buttonBitmap;
 155
 156     if ( !bitmap->Ok() )
 157         return FALSE;
 158
 159     // centre the bitmap in the control area
 160     int x      = lpDIS->rcItem.left;
 161     int y      = lpDIS->rcItem.top;
 162     int width  = lpDIS->rcItem.right - x;
 163     int height = lpDIS->rcItem.bottom - y;
 164     int wBmp   = bitmap->GetWidth();
 165     int hBmp   = bitmap->GetHeight();
 166
 167         int x1,y1;
 168
 169     if(m_windowStyle & wxBU_LEFT)
 170         x1 = x + (FOCUS_MARGIN+1);
 171     else if(m_windowStyle & wxBU_RIGHT)
 172         x1 = x + (width - wBmp) - (FOCUS_MARGIN+1);
 173     else
 174         x1 = x + (width - wBmp) / 2;
 175
 176     if(m_windowStyle & wxBU_TOP)
 177         y1 = y + (FOCUS_MARGIN+1);
 178     else if(m_windowStyle & wxBU_BOTTOM)
 179         y1 = y + (height - hBmp) - (FOCUS_MARGIN+1);
 180     else
 181         y1 = y + (height - hBmp) / 2;
 182
 183     if ( isSelected && autoDraw )
 184     {
 185         x1++;
 186         y1++;
 187     }
 188
 189     // draw the face, if auto-drawing
 190     if ( autoDraw )
 191     {
 192         DrawFace((WXHDC) hDC,
 193                  lpDIS->rcItem.left, lpDIS->rcItem.top,
 194                  lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 195                  isSelected);
 196     }
 197
 198     // draw the bitmap
 199     wxDC dst;
 200     dst.SetHDC((WXHDC) hDC, FALSE);
 201     dst.DrawBitmap(*bitmap, x1, y1, TRUE);
 202
 203     // draw focus / disabled state, if auto-drawing
 204     if ( (state & ODS_DISABLED) && autoDraw )
 205     {
 206         DrawButtonDisable((WXHDC) hDC,
 207                           lpDIS->rcItem.left, lpDIS->rcItem.top,
 208                           lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 209                           TRUE);
 210     }
 211     else if ( (state & ODS_FOCUS) && autoDraw )
 212     {
 213         DrawButtonFocus((WXHDC) hDC,
 214                         lpDIS->rcItem.left,
 215                         lpDIS->rcItem.top,
 216                         lpDIS->rcItem.right,
 217                         lpDIS->rcItem.bottom,
 218                         isSelected);
 219     }
 220
 221     return TRUE;
 222 }
 223
 224 // GRG Feb/2000, support for bmp buttons with Win95/98 standard LNF
 225
 226 #if defined(__WIN95__)
 227
 228 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 229 {
 230     HPEN oldp;
 231     HPEN penHiLight;
 232     HPEN penLight;
 233     HPEN penShadow;
 234     HPEN penDkShadow;
 235     HBRUSH brushFace;
 236
 237     // create needed pens and brush
 238     penHiLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DHILIGHT));
 239     penLight    = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DLIGHT));
 240     penShadow   = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DSHADOW));
 241     penDkShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DDKSHADOW));
 242     brushFace   = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
 243
 244     // draw the rectangle
 245     RECT rect;
 246     rect.left   = left;
 247     rect.right  = right;
 248     rect.top    = top;
 249     rect.bottom = bottom;
 250     FillRect((HDC) dc, &rect, brushFace);
 251
 252     // draw the border
 253     oldp = (HPEN) SelectObject( (HDC) dc, sel? penDkShadow : penHiLight);
 254     MoveToEx((HDC) dc, left, top, NULL); LineTo((HDC) dc, right-1, top);
 255     MoveToEx((HDC) dc, left, top+1, NULL); LineTo((HDC) dc, left, bottom-1);
 256
 257     SelectObject( (HDC) dc, sel? penShadow : penLight);
 258     MoveToEx((HDC) dc, left+1, top+1, NULL); LineTo((HDC) dc, right-2, top+1);
 259     MoveToEx((HDC) dc, left+1, top+2, NULL); LineTo((HDC) dc, left+1, bottom-2);
 260
 261     SelectObject( (HDC) dc, sel? penLight : penShadow);
 262     MoveToEx((HDC) dc, left+1, bottom-2, NULL); LineTo((HDC) dc, right-1, bottom-2);
 263     MoveToEx((HDC) dc, right-2, bottom-3, NULL); LineTo((HDC) dc, right-2, top);
 264
 265     SelectObject( (HDC) dc, sel? penHiLight : penDkShadow);
 266     MoveToEx((HDC) dc, left, bottom-1, NULL); LineTo((HDC) dc, right+2, bottom-1);
 267     MoveToEx((HDC) dc, right-1, bottom-2, NULL); LineTo((HDC) dc, right-1, top-1);
 268
 269     // delete allocated resources
 270     SelectObject((HDC) dc,oldp);
 271     DeleteObject(penHiLight);
 272     DeleteObject(penLight);
 273     DeleteObject(penShadow);
 274     DeleteObject(penDkShadow);
 275     DeleteObject(brushFace);
 276 }
 277
 278 #else
 279
 280 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 281 {
 282     HPEN oldp;
 283     HPEN penBorder;
 284     HPEN penLight;
 285     HPEN penShadow;
 286     HBRUSH brushFace;
 287
 288     // create needed pens and brush
 289     penBorder = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_WINDOWFRAME));
 290     penShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNSHADOW));
 291     penLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNHIGHLIGHT));
 292     brushFace = CreateSolidBrush(COLOR_BTNFACE);
 293
 294     // draw the rectangle
 295     RECT rect;
 296     rect.left   = left;
 297     rect.right  = right;
 298     rect.top    = top;
 299     rect.bottom = bottom;
 300     FillRect((HDC) dc, &rect, brushFace);
 301
 302     // draw the border
 303     oldp = (HPEN) SelectObject( (HDC) dc, penBorder);
 304     MoveToEx((HDC) dc,left+1,top,NULL);LineTo((HDC) dc,right-1,top);
 305     MoveToEx((HDC) dc,left,top+1,NULL);LineTo((HDC) dc,left,bottom-1);
 306     MoveToEx((HDC) dc,left+1,bottom-1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 307     MoveToEx((HDC) dc,right-1,top+1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 308
 309     SelectObject( (HDC) dc, penShadow);
 310     if (sel)
 311     {
 312         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 313         LineTo((HDC) dc,  left+1    ,top+1);
 314         LineTo((HDC) dc,  right-2   ,top+1);
 315     }
 316     else
 317     {
 318         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 319         LineTo((HDC) dc,  right-2   ,bottom-2);
 320         LineTo((HDC) dc,  right-2   ,top);
 321
 322         MoveToEx((HDC) dc,left+2    ,bottom-3   ,NULL);
 323         LineTo((HDC) dc,  right-3   ,bottom-3);
 324         LineTo((HDC) dc,  right-3   ,top+1);
 325
 326         SelectObject( (HDC) dc, penLight);
 327
 328         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 329         LineTo((HDC) dc,  left+1    ,top+1);
 330         LineTo((HDC) dc,  right-2   ,top+1);
 331     }
 332
 333     // delete allocated resources
 334     SelectObject((HDC) dc,oldp);
 335     DeleteObject(penBorder);
 336     DeleteObject(penLight);
 337     DeleteObject(penShadow);
 338     DeleteObject(brushFace);
 339 }
 340
 341 #endif // defined(__WIN95__)
 342
 343
 344 void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 345 {
 346     RECT rect;
 347     rect.left = left;
 348     rect.top = top;
 349     rect.right = right;
 350     rect.bottom = bottom;
 351     InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN );
 352
 353     // GRG: the focus rectangle should not move when the button is pushed!
 354 /*
 355     if ( sel )
 356         OffsetRect( &rect, 1, 1 );
 357 */
 358         (void)sel;
 359     DrawFocusRect( (HDC) dc, &rect );
 360 }
 361
 362 extern HBRUSH wxDisableButtonBrush;
 363 void wxBitmapButton::DrawButtonDisable( WXHDC dc, int left, int top, int right, int bottom, bool with_marg )
 364 {
 365     HBRUSH  old = (HBRUSH) SelectObject( (HDC) dc, wxDisableButtonBrush );
 366
 367     // VZ: what's this?? there is no such ROP AFAIK
 368 #ifdef __SALFORDC__
 369     DWORD dwRop = 0xFA0089L;
 370 #else
 371     DWORD dwRop = 0xFA0089UL;
 372 #endif
 373
 374     if ( with_marg )
 375     {
 376         left += m_marginX;
 377         top += m_marginY;
 378         right -= 2 * m_marginX;
 379         bottom -= 2 * m_marginY;
 380     }
 381
 382     ::PatBlt( (HDC) dc, left, top, right, bottom, dwRop);
 383
 384     ::SelectObject( (HDC) dc, old );
 385 }
 386
 387 void wxBitmapButton::SetDefault()
 388 {
 389     wxButton::SetDefault();
 390 }