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 #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                     wxEmptyString,
  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     // Taking the background colour fits in better with
 239     // Windows XP themes.
 240     brushFace   = CreateSolidBrush(m_backgroundColour.m_pixel);
 241
 242     // draw the rectangle
 243     RECT rect;
 244     rect.left   = left;
 245     rect.right  = right;
 246     rect.top    = top;
 247     rect.bottom = bottom;
 248     FillRect((HDC) dc, &rect, brushFace);
 249
 250     // draw the border
 251     oldp = (HPEN) SelectObject( (HDC) dc, sel? penDkShadow : penHiLight);
 252     MoveToEx((HDC) dc, left, top, NULL); LineTo((HDC) dc, right-1, top);
 253     MoveToEx((HDC) dc, left, top+1, NULL); LineTo((HDC) dc, left, bottom-1);
 254
 255     SelectObject( (HDC) dc, sel? penShadow : penLight);
 256     MoveToEx((HDC) dc, left+1, top+1, NULL); LineTo((HDC) dc, right-2, top+1);
 257     MoveToEx((HDC) dc, left+1, top+2, NULL); LineTo((HDC) dc, left+1, bottom-2);
 258
 259     SelectObject( (HDC) dc, sel? penLight : penShadow);
 260     MoveToEx((HDC) dc, left+1, bottom-2, NULL); LineTo((HDC) dc, right-1, bottom-2);
 261     MoveToEx((HDC) dc, right-2, bottom-3, NULL); LineTo((HDC) dc, right-2, top);
 262
 263     SelectObject( (HDC) dc, sel? penHiLight : penDkShadow);
 264     MoveToEx((HDC) dc, left, bottom-1, NULL); LineTo((HDC) dc, right+2, bottom-1);
 265     MoveToEx((HDC) dc, right-1, bottom-2, NULL); LineTo((HDC) dc, right-1, top-1);
 266
 267     // delete allocated resources
 268     SelectObject((HDC) dc,oldp);
 269     DeleteObject(penHiLight);
 270     DeleteObject(penLight);
 271     DeleteObject(penShadow);
 272     DeleteObject(penDkShadow);
 273     DeleteObject(brushFace);
 274 }
 275
 276 #else
 277
 278 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 279 {
 280     HPEN oldp;
 281     HPEN penBorder;
 282     HPEN penLight;
 283     HPEN penShadow;
 284     HBRUSH brushFace;
 285
 286     // create needed pens and brush
 287     penBorder = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_WINDOWFRAME));
 288     penShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNSHADOW));
 289     penLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_BTNHIGHLIGHT));
 290     brushFace = CreateSolidBrush(COLOR_BTNFACE);
 291
 292     // draw the rectangle
 293     RECT rect;
 294     rect.left   = left;
 295     rect.right  = right;
 296     rect.top    = top;
 297     rect.bottom = bottom;
 298     FillRect((HDC) dc, &rect, brushFace);
 299
 300     // draw the border
 301     oldp = (HPEN) SelectObject( (HDC) dc, penBorder);
 302     MoveToEx((HDC) dc,left+1,top,NULL);LineTo((HDC) dc,right-1,top);
 303     MoveToEx((HDC) dc,left,top+1,NULL);LineTo((HDC) dc,left,bottom-1);
 304     MoveToEx((HDC) dc,left+1,bottom-1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 305     MoveToEx((HDC) dc,right-1,top+1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 306
 307     SelectObject( (HDC) dc, penShadow);
 308     if (sel)
 309     {
 310         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 311         LineTo((HDC) dc,  left+1    ,top+1);
 312         LineTo((HDC) dc,  right-2   ,top+1);
 313     }
 314     else
 315     {
 316         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 317         LineTo((HDC) dc,  right-2   ,bottom-2);
 318         LineTo((HDC) dc,  right-2   ,top);
 319
 320         MoveToEx((HDC) dc,left+2    ,bottom-3   ,NULL);
 321         LineTo((HDC) dc,  right-3   ,bottom-3);
 322         LineTo((HDC) dc,  right-3   ,top+1);
 323
 324         SelectObject( (HDC) dc, penLight);
 325
 326         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL);
 327         LineTo((HDC) dc,  left+1    ,top+1);
 328         LineTo((HDC) dc,  right-2   ,top+1);
 329     }
 330
 331     // delete allocated resources
 332     SelectObject((HDC) dc,oldp);
 333     DeleteObject(penBorder);
 334     DeleteObject(penLight);
 335     DeleteObject(penShadow);
 336     DeleteObject(brushFace);
 337 }
 338
 339 #endif // defined(__WIN95__)
 340
 341
 342 void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 343 {
 344     RECT rect;
 345     rect.left = left;
 346     rect.top = top;
 347     rect.right = right;
 348     rect.bottom = bottom;
 349     InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN );
 350
 351     // GRG: the focus rectangle should not move when the button is pushed!
 352 /*
 353     if ( sel )
 354         OffsetRect( &rect, 1, 1 );
 355 */
 356         (void)sel;
 357     DrawFocusRect( (HDC) dc, &rect );
 358 }
 359
 360 extern HBRUSH wxDisableButtonBrush;
 361 void wxBitmapButton::DrawButtonDisable( WXHDC dc, int left, int top, int right, int bottom, bool with_marg )
 362 {
 363     HBRUSH  old = (HBRUSH) SelectObject( (HDC) dc, wxDisableButtonBrush );
 364
 365     // VZ: what's this?? there is no such ROP AFAIK
 366 #ifdef __SALFORDC__
 367     DWORD dwRop = 0xFA0089L;
 368 #else
 369     DWORD dwRop = 0xFA0089UL;
 370 #endif
 371
 372     if ( with_marg )
 373     {
 374         left += m_marginX;
 375         top += m_marginY;
 376         right -= 2 * m_marginX;
 377         bottom -= 2 * m_marginY;
 378     }
 379
 380     ::PatBlt( (HDC) dc, left, top, right, bottom, dwRop);
 381
 382     ::SelectObject( (HDC) dc, old );
 383 }
 384
 385 void wxBitmapButton::SetDefault()
 386 {
 387     wxButton::SetDefault();
 388 }
 389
 390 #endif // wxUSE_BMPBUTTON