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
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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 /*
  36 TODO PROPERTIES :
  37
  38 long "style" , wxBU_AUTODRAW
  39 bool "default" , 0
  40 bitmap "selected" ,
  41 bitmap "focus" ,
  42 bitmap "disabled" ,
  43 */
  44
  45 #define BUTTON_HEIGHT_FACTOR (EDIT_CONTROL_FACTOR * 1.1)
  46
  47 bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id, const wxBitmap& bitmap,
  48            const wxPoint& pos,
  49            const wxSize& size, long style,
  50            const wxValidator& validator,
  51            const wxString& name)
  52 {
  53   m_bmpNormal = bitmap;
  54   SetName(name);
  55
  56 #if wxUSE_VALIDATORS
  57   SetValidator(validator);
  58 #endif // wxUSE_VALIDATORS
  59
  60   parent->AddChild(this);
  61
  62   m_backgroundColour = parent->GetBackgroundColour();
  63   m_foregroundColour = parent->GetForegroundColour();
  64   m_windowStyle = style;
  65
  66   if ( style & wxBU_AUTODRAW )
  67   {
  68     m_marginX = wxDEFAULT_BUTTON_MARGIN;
  69     m_marginY = wxDEFAULT_BUTTON_MARGIN;
  70   }
  71
  72   int x = pos.x;
  73   int y = pos.y;
  74   int width = size.x;
  75   int height = size.y;
  76
  77   if (id == -1)
  78     m_windowId = NewControlId();
  79   else
  80     m_windowId = id;
  81
  82   if ( width == -1 && bitmap.Ok())
  83     width = bitmap.GetWidth() + 2*m_marginX;
  84
  85   if ( height == -1 && bitmap.Ok())
  86     height = bitmap.GetHeight() + 2*m_marginY;
  87
  88         long msStyle = WS_VISIBLE | WS_TABSTOP | WS_CHILD | BS_OWNERDRAW ;
  89
  90     if ( m_windowStyle & wxCLIP_SIBLINGS )
  91         msStyle |= WS_CLIPSIBLINGS;
  92
  93 #ifdef __WIN32__
  94     if(m_windowStyle & wxBU_LEFT)
  95         msStyle |= BS_LEFT;
  96     if(m_windowStyle & wxBU_RIGHT)
  97         msStyle |= BS_RIGHT;
  98     if(m_windowStyle & wxBU_TOP)
  99         msStyle |= BS_TOP;
 100     if(m_windowStyle & wxBU_BOTTOM)
 101         msStyle |= BS_BOTTOM;
 102 #endif
 103
 104   m_hWnd = (WXHWND)CreateWindowEx
 105                    (
 106                     0,
 107                     wxT("BUTTON"),
 108                     wxEmptyString,
 109                     msStyle,
 110                     0, 0, 0, 0,
 111                     GetWinHwnd(parent),
 112                     (HMENU)m_windowId,
 113                     wxGetInstance(),
 114                     NULL
 115                    );
 116
 117   // Subclass again for purposes of dialog editing mode
 118   SubclassWin(m_hWnd);
 119
 120   SetFont(parent->GetFont());
 121
 122   SetSize(x, y, width, height);
 123
 124   return TRUE;
 125 }
 126
 127 // VZ: should be at the very least less than wxDEFAULT_BUTTON_MARGIN
 128 #define FOCUS_MARGIN 3
 129
 130 bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 131 {
 132 #ifndef __WXWINCE__
 133     long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
 134     if (style & BS_BITMAP)
 135     {
 136         // Let default procedure draw the bitmap, which is defined
 137         // in the Windows resource.
 138         return FALSE;
 139     }
 140 #endif
 141
 142     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
 143     HDC hDC                = lpDIS->hDC;
 144     UINT state             = lpDIS->itemState;
 145     bool isSelected        = (state & ODS_SELECTED) != 0;
 146     bool autoDraw          = (GetWindowStyleFlag() & wxBU_AUTODRAW) != 0;
 147
 148
 149     // choose the bitmap to use depending on the button state
 150     wxBitmap* bitmap;
 151
 152     if ( isSelected && m_bmpSelected.Ok() )
 153         bitmap = &m_bmpSelected;
 154     else if ((state & ODS_FOCUS) && m_bmpFocus.Ok())
 155         bitmap = &m_bmpFocus;
 156     else if ((state & ODS_DISABLED) && m_bmpDisabled.Ok())
 157         bitmap = &m_bmpDisabled;
 158     else
 159         bitmap = &m_bmpNormal;
 160
 161     if ( !bitmap->Ok() )
 162         return FALSE;
 163
 164     // centre the bitmap in the control area
 165     int x      = lpDIS->rcItem.left;
 166     int y      = lpDIS->rcItem.top;
 167     int width  = lpDIS->rcItem.right - x;
 168     int height = lpDIS->rcItem.bottom - y;
 169     int wBmp   = bitmap->GetWidth();
 170     int hBmp   = bitmap->GetHeight();
 171
 172         int x1,y1;
 173
 174     if(m_windowStyle & wxBU_LEFT)
 175         x1 = x + (FOCUS_MARGIN+1);
 176     else if(m_windowStyle & wxBU_RIGHT)
 177         x1 = x + (width - wBmp) - (FOCUS_MARGIN+1);
 178     else
 179         x1 = x + (width - wBmp) / 2;
 180
 181     if(m_windowStyle & wxBU_TOP)
 182         y1 = y + (FOCUS_MARGIN+1);
 183     else if(m_windowStyle & wxBU_BOTTOM)
 184         y1 = y + (height - hBmp) - (FOCUS_MARGIN+1);
 185     else
 186         y1 = y + (height - hBmp) / 2;
 187
 188     if ( isSelected && autoDraw )
 189     {
 190         x1++;
 191         y1++;
 192     }
 193
 194     // draw the face, if auto-drawing
 195     if ( autoDraw )
 196     {
 197         DrawFace((WXHDC) hDC,
 198                  lpDIS->rcItem.left, lpDIS->rcItem.top,
 199                  lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 200                  isSelected);
 201     }
 202
 203     // draw the bitmap
 204     wxDC dst;
 205     dst.SetHDC((WXHDC) hDC, FALSE);
 206     dst.DrawBitmap(*bitmap, x1, y1, TRUE);
 207
 208     // draw focus / disabled state, if auto-drawing
 209     if ( (state & ODS_DISABLED) && autoDraw )
 210     {
 211         DrawButtonDisable((WXHDC) hDC,
 212                           lpDIS->rcItem.left, lpDIS->rcItem.top,
 213                           lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 214                           TRUE);
 215     }
 216     else if ( (state & ODS_FOCUS) && autoDraw )
 217     {
 218         DrawButtonFocus((WXHDC) hDC,
 219                         lpDIS->rcItem.left,
 220                         lpDIS->rcItem.top,
 221                         lpDIS->rcItem.right,
 222                         lpDIS->rcItem.bottom,
 223                         isSelected);
 224     }
 225
 226     return TRUE;
 227 }
 228
 229 // GRG Feb/2000, support for bmp buttons with Win95/98 standard LNF
 230
 231 #if defined(__WIN95__)
 232
 233 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 234 {
 235     HPEN oldp;
 236     HPEN penHiLight;
 237     HPEN penLight;
 238     HPEN penShadow;
 239     HPEN penDkShadow;
 240     HBRUSH brushFace;
 241
 242     // create needed pens and brush
 243     penHiLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DHILIGHT));
 244     penLight    = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DLIGHT));
 245     penShadow   = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DSHADOW));
 246     penDkShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DDKSHADOW));
 247     // brushFace   = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
 248     // Taking the background colour fits in better with
 249     // Windows XP themes.
 250     brushFace   = CreateSolidBrush(m_backgroundColour.m_pixel);
 251
 252     // draw the rectangle
 253     RECT rect;
 254     rect.left   = left;
 255     rect.right  = right;
 256     rect.top    = top;
 257     rect.bottom = bottom;
 258     FillRect((HDC) dc, &rect, brushFace);
 259
 260     // draw the border
 261     oldp = (HPEN) SelectObject( (HDC) dc, sel? penDkShadow : penHiLight);
 262
 263     wxDrawLine((HDC) dc, left, top, right-1, top);
 264     wxDrawLine((HDC) dc, left, top+1, left, bottom-1);
 265
 266     SelectObject( (HDC) dc, sel? penShadow : penLight);
 267     wxDrawLine((HDC) dc, left+1, top+1, right-2, top+1);
 268     wxDrawLine((HDC) dc, left+1, top+2, left+1, bottom-2);
 269
 270     SelectObject( (HDC) dc, sel? penLight : penShadow);
 271     wxDrawLine((HDC) dc, left+1, bottom-2, right-1, bottom-2);
 272     wxDrawLine((HDC) dc, right-2, bottom-3, right-2, top);
 273
 274     SelectObject( (HDC) dc, sel? penHiLight : penDkShadow);
 275     wxDrawLine((HDC) dc, left, bottom-1, right+2, bottom-1);
 276     wxDrawLine((HDC) dc, right-1, bottom-2, right-1, top-1);
 277
 278     // delete allocated resources
 279     SelectObject((HDC) dc,oldp);
 280     DeleteObject(penHiLight);
 281     DeleteObject(penLight);
 282     DeleteObject(penShadow);
 283     DeleteObject(penDkShadow);
 284     DeleteObject(brushFace);
 285 }
 286
 287 #else
 288
 289 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 290 {
 291     HPEN oldp;
 292     HPEN penBorder;
 293     HPEN penLight;
 294     HPEN penShadow;
 295     HBRUSH brushFace;
 296
 297     // create needed pens and brush
 298     penBorder = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_WINDOWFRAME));
 299     penShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNSHADOW));
 300     penLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNHIGHLIGHT));
 301     brushFace = CreateSolidBrush(COLOR_BTNFACE);
 302
 303     // draw the rectangle
 304     RECT rect;
 305     rect.left   = left;
 306     rect.right  = right;
 307     rect.top    = top;
 308     rect.bottom = bottom;
 309     FillRect((HDC) dc, &rect, brushFace);
 310
 311     // draw the border
 312     oldp = (HPEN) SelectObject( (HDC) dc, penBorder);
 313     MoveToEx((HDC) dc,left+1,top,NULL);LineTo((HDC) dc,right-1,top);
 314     MoveToEx((HDC) dc,left,top+1,NULL);LineTo((HDC) dc,left,bottom-1);
 315     MoveToEx((HDC) dc,left+1,bottom-1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 316     MoveToEx((HDC) dc,right-1,top+1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 317
 318     SelectObject( (HDC) dc, penShadow);
 319     if (sel)
 320     {
 321         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 322         LineTo((HDC) dc,  left+1    ,top+1);
 323         LineTo((HDC) dc,  right-2   ,top+1);
 324     }
 325     else
 326     {
 327         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 328         LineTo((HDC) dc,  right-2   ,bottom-2);
 329         LineTo((HDC) dc,  right-2   ,top);
 330
 331         MoveToEx((HDC) dc,left+2    ,bottom-3   ,NULL);
 332         LineTo((HDC) dc,  right-3   ,bottom-3);
 333         LineTo((HDC) dc,  right-3   ,top+1);
 334
 335         SelectObject( (HDC) dc, penLight);
 336
 337         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 338         LineTo((HDC) dc,  left+1    ,top+1);
 339         LineTo((HDC) dc,  right-2   ,top+1);
 340     }
 341
 342     // delete allocated resources
 343     SelectObject((HDC) dc,oldp);
 344     DeleteObject(penBorder);
 345     DeleteObject(penLight);
 346     DeleteObject(penShadow);
 347     DeleteObject(brushFace);
 348 }
 349
 350 #endif // defined(__WIN95__)
 351
 352
 353 void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 354 {
 355     RECT rect;
 356     rect.left = left;
 357     rect.top = top;
 358     rect.right = right;
 359     rect.bottom = bottom;
 360     InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN );
 361
 362     // GRG: the focus rectangle should not move when the button is pushed!
 363 /*
 364     if ( sel )
 365         OffsetRect( &rect, 1, 1 );
 366 */
 367         (void)sel;
 368     DrawFocusRect( (HDC) dc, &rect );
 369 }
 370
 371 extern HBRUSH wxDisableButtonBrush;
 372 void wxBitmapButton::DrawButtonDisable( WXHDC dc, int left, int top, int right, int bottom, bool with_marg )
 373 {
 374     HBRUSH  old = (HBRUSH) SelectObject( (HDC) dc, wxDisableButtonBrush );
 375
 376     // VZ: what's this?? there is no such ROP AFAIK
 377 #ifdef __SALFORDC__
 378     DWORD dwRop = 0xFA0089L;
 379 #else
 380     DWORD dwRop = 0xFA0089UL;
 381 #endif
 382
 383     if ( with_marg )
 384     {
 385         left += m_marginX;
 386         top += m_marginY;
 387         right -= 2 * m_marginX;
 388         bottom -= 2 * m_marginY;
 389     }
 390
 391     ::PatBlt( (HDC) dc, left, top, right, bottom, dwRop);
 392
 393     ::SelectObject( (HDC) dc, old );
 394 }
 395
 396 void wxBitmapButton::SetDefault()
 397 {
 398     wxButton::SetDefault();
 399 }
 400
 401 #endif // wxUSE_BMPBUTTON