src/msw/bmpbuttn.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/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 #if wxUSE_BMPBUTTON
  24
  25 #ifndef WX_PRECOMP
  26     #include "wx/bmpbuttn.h"
  27     #include "wx/log.h"
  28     #include "wx/dcmemory.h"
  29 #endif
  30
  31 #include "wx/msw/private.h"
  32
  33 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
  34
  35 #define BUTTON_HEIGHT_FACTOR (EDIT_CONTROL_FACTOR * 1.1)
  36
  37 bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id, const wxBitmap& bitmap,
  38            const wxPoint& pos,
  39            const wxSize& size, long style,
  40            const wxValidator& validator,
  41            const wxString& name)
  42 {
  43   m_bmpNormal = bitmap;
  44   SetName(name);
  45
  46 #if wxUSE_VALIDATORS
  47   SetValidator(validator);
  48 #endif // wxUSE_VALIDATORS
  49
  50   parent->AddChild(this);
  51
  52   m_backgroundColour = parent->GetBackgroundColour();
  53   m_foregroundColour = parent->GetForegroundColour();
  54   m_windowStyle = style;
  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 // VZ: should be at the very least less than wxDEFAULT_BUTTON_MARGIN
 118 #define FOCUS_MARGIN 3
 119
 120 bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 121 {
 122 #if defined(__WIN95__)
 123     long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
 124     if (style & BS_BITMAP)
 125     {
 126         // Let default procedure draw the bitmap, which is defined
 127         // in the Windows resource.
 128         return FALSE;
 129     }
 130 #endif
 131
 132     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
 133     HDC hDC                = lpDIS->hDC;
 134     UINT state             = lpDIS->itemState;
 135     bool isSelected        = (state & ODS_SELECTED) != 0;
 136     bool autoDraw          = (GetWindowStyleFlag() & wxBU_AUTODRAW) != 0;
 137
 138
 139     // choose the bitmap to use depending on the button state
 140     wxBitmap* bitmap;
 141
 142     if ( isSelected && m_bmpSelected.Ok() )
 143         bitmap = &m_bmpSelected;
 144     else if ((state & ODS_FOCUS) && m_bmpFocus.Ok())
 145         bitmap = &m_bmpFocus;
 146     else if ((state & ODS_DISABLED) && m_bmpDisabled.Ok())
 147         bitmap = &m_bmpDisabled;
 148     else
 149         bitmap = &m_bmpNormal;
 150
 151     if ( !bitmap->Ok() )
 152         return FALSE;
 153
 154     // centre the bitmap in the control area
 155     int x      = lpDIS->rcItem.left;
 156     int y      = lpDIS->rcItem.top;
 157     int width  = lpDIS->rcItem.right - x;
 158     int height = lpDIS->rcItem.bottom - y;
 159     int wBmp   = bitmap->GetWidth();
 160     int hBmp   = bitmap->GetHeight();
 161
 162         int x1,y1;
 163
 164     if(m_windowStyle & wxBU_LEFT)
 165         x1 = x + (FOCUS_MARGIN+1);
 166     else if(m_windowStyle & wxBU_RIGHT)
 167         x1 = x + (width - wBmp) - (FOCUS_MARGIN+1);
 168     else
 169         x1 = x + (width - wBmp) / 2;
 170
 171     if(m_windowStyle & wxBU_TOP)
 172         y1 = y + (FOCUS_MARGIN+1);
 173     else if(m_windowStyle & wxBU_BOTTOM)
 174         y1 = y + (height - hBmp) - (FOCUS_MARGIN+1);
 175     else
 176         y1 = y + (height - hBmp) / 2;
 177
 178     if ( isSelected && autoDraw )
 179     {
 180         x1++;
 181         y1++;
 182     }
 183
 184     // draw the face, if auto-drawing
 185     if ( autoDraw )
 186     {
 187         DrawFace((WXHDC) hDC,
 188                  lpDIS->rcItem.left, lpDIS->rcItem.top,
 189                  lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 190                  isSelected);
 191     }
 192
 193     // draw the bitmap
 194     wxDC dst;
 195     dst.SetHDC((WXHDC) hDC, FALSE);
 196     dst.DrawBitmap(*bitmap, x1, y1, TRUE);
 197
 198     // draw focus / disabled state, if auto-drawing
 199     if ( (state & ODS_DISABLED) && autoDraw )
 200     {
 201         DrawButtonDisable((WXHDC) hDC,
 202                           lpDIS->rcItem.left, lpDIS->rcItem.top,
 203                           lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 204                           TRUE);
 205     }
 206     else if ( (state & ODS_FOCUS) && autoDraw )
 207     {
 208         DrawButtonFocus((WXHDC) hDC,
 209                         lpDIS->rcItem.left,
 210                         lpDIS->rcItem.top,
 211                         lpDIS->rcItem.right,
 212                         lpDIS->rcItem.bottom,
 213                         isSelected);
 214     }
 215
 216     return TRUE;
 217 }
 218
 219 // GRG Feb/2000, support for bmp buttons with Win95/98 standard LNF
 220
 221 #if defined(__WIN95__)
 222
 223 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 224 {
 225     HPEN oldp;
 226     HPEN penHiLight;
 227     HPEN penLight;
 228     HPEN penShadow;
 229     HPEN penDkShadow;
 230     HBRUSH brushFace;
 231
 232     // create needed pens and brush
 233     penHiLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DHILIGHT));
 234     penLight    = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DLIGHT));
 235     penShadow   = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DSHADOW));
 236     penDkShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DDKSHADOW));
 237     brushFace   = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
 238
 239     // draw the rectangle
 240     RECT rect;
 241     rect.left   = left;
 242     rect.right  = right;
 243     rect.top    = top;
 244     rect.bottom = bottom;
 245     FillRect((HDC) dc, &rect, brushFace);
 246
 247     // draw the border
 248     oldp = (HPEN) SelectObject( (HDC) dc, sel? penDkShadow : penHiLight);
 249     MoveToEx((HDC) dc, left, top, NULL); LineTo((HDC) dc, right-1, top);
 250     MoveToEx((HDC) dc, left, top+1, NULL); LineTo((HDC) dc, left, bottom-1);
 251
 252     SelectObject( (HDC) dc, sel? penShadow : penLight);
 253     MoveToEx((HDC) dc, left+1, top+1, NULL); LineTo((HDC) dc, right-2, top+1);
 254     MoveToEx((HDC) dc, left+1, top+2, NULL); LineTo((HDC) dc, left+1, bottom-2);
 255
 256     SelectObject( (HDC) dc, sel? penLight : penShadow);
 257     MoveToEx((HDC) dc, left+1, bottom-2, NULL); LineTo((HDC) dc, right-1, bottom-2);
 258     MoveToEx((HDC) dc, right-2, bottom-3, NULL); LineTo((HDC) dc, right-2, top);
 259
 260     SelectObject( (HDC) dc, sel? penHiLight : penDkShadow);
 261     MoveToEx((HDC) dc, left, bottom-1, NULL); LineTo((HDC) dc, right+2, bottom-1);
 262     MoveToEx((HDC) dc, right-1, bottom-2, NULL); LineTo((HDC) dc, right-1, top-1);
 263
 264     // delete allocated resources
 265     SelectObject((HDC) dc,oldp);
 266     DeleteObject(penHiLight);
 267     DeleteObject(penLight);
 268     DeleteObject(penShadow);
 269     DeleteObject(penDkShadow);
 270     DeleteObject(brushFace);
 271 }
 272
 273 #else
 274
 275 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 276 {
 277     HPEN oldp;
 278     HPEN penBorder;
 279     HPEN penLight;
 280     HPEN penShadow;
 281     HBRUSH brushFace;
 282
 283     // create needed pens and brush
 284     penBorder = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_WINDOWFRAME));
 285     penShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNSHADOW));
 286     penLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNHIGHLIGHT));
 287     brushFace = CreateSolidBrush(COLOR_BTNFACE);
 288
 289     // draw the rectangle
 290     RECT rect;
 291     rect.left   = left;
 292     rect.right  = right;
 293     rect.top    = top;
 294     rect.bottom = bottom;
 295     FillRect((HDC) dc, &rect, brushFace);
 296
 297     // draw the border
 298     oldp = (HPEN) SelectObject( (HDC) dc, penBorder);
 299     MoveToEx((HDC) dc,left+1,top,NULL);LineTo((HDC) dc,right-1,top);
 300     MoveToEx((HDC) dc,left,top+1,NULL);LineTo((HDC) dc,left,bottom-1);
 301     MoveToEx((HDC) dc,left+1,bottom-1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 302     MoveToEx((HDC) dc,right-1,top+1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 303
 304     SelectObject( (HDC) dc, penShadow);
 305     if (sel)
 306     {
 307         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 308         LineTo((HDC) dc,  left+1    ,top+1);
 309         LineTo((HDC) dc,  right-2   ,top+1);
 310     }
 311     else
 312     {
 313         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 314         LineTo((HDC) dc,  right-2   ,bottom-2);
 315         LineTo((HDC) dc,  right-2   ,top);
 316
 317         MoveToEx((HDC) dc,left+2    ,bottom-3   ,NULL);
 318         LineTo((HDC) dc,  right-3   ,bottom-3);
 319         LineTo((HDC) dc,  right-3   ,top+1);
 320
 321         SelectObject( (HDC) dc, penLight);
 322
 323         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 324         LineTo((HDC) dc,  left+1    ,top+1);
 325         LineTo((HDC) dc,  right-2   ,top+1);
 326     }
 327
 328     // delete allocated resources
 329     SelectObject((HDC) dc,oldp);
 330     DeleteObject(penBorder);
 331     DeleteObject(penLight);
 332     DeleteObject(penShadow);
 333     DeleteObject(brushFace);
 334 }
 335
 336 #endif // defined(__WIN95__)
 337
 338
 339 void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 340 {
 341     RECT rect;
 342     rect.left = left;
 343     rect.top = top;
 344     rect.right = right;
 345     rect.bottom = bottom;
 346     InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN );
 347
 348     // GRG: the focus rectangle should not move when the button is pushed!
 349 /*
 350     if ( sel )
 351         OffsetRect( &rect, 1, 1 );
 352 */
 353         (void)sel;
 354     DrawFocusRect( (HDC) dc, &rect );
 355 }
 356
 357 extern HBRUSH wxDisableButtonBrush;
 358 void wxBitmapButton::DrawButtonDisable( WXHDC dc, int left, int top, int right, int bottom, bool with_marg )
 359 {
 360     HBRUSH  old = (HBRUSH) SelectObject( (HDC) dc, wxDisableButtonBrush );
 361
 362     // VZ: what's this?? there is no such ROP AFAIK
 363 #ifdef __SALFORDC__
 364     DWORD dwRop = 0xFA0089L;
 365 #else
 366     DWORD dwRop = 0xFA0089UL;
 367 #endif
 368
 369     if ( with_marg )
 370     {
 371         left += m_marginX;
 372         top += m_marginY;
 373         right -= 2 * m_marginX;
 374         bottom -= 2 * m_marginY;
 375     }
 376
 377     ::PatBlt( (HDC) dc, left, top, right, bottom, dwRop);
 378
 379     ::SelectObject( (HDC) dc, old );
 380 }
 381
 382 void wxBitmapButton::SetDefault()
 383 {
 384     wxButton::SetDefault();
 385 }
 386
 387 #endif // wxUSE_BMPBUTTON