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