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