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 #endif
  26
  27 #include "wx/msw/private.h"
  28
  29 #if !USE_SHARED_LIBRARY
  30 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
  31 #endif
  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   SetValidator(validator);
  44
  45   parent->AddChild(this);
  46
  47   m_backgroundColour = parent->GetBackgroundColour() ;
  48   m_foregroundColour = parent->GetForegroundColour() ;
  49   m_windowStyle = style;
  50   m_marginX = 0;
  51   m_marginY = 0;
  52
  53   if ( style & wxBU_AUTODRAW )
  54   {
  55     m_marginX = wxDEFAULT_BUTTON_MARGIN;
  56     m_marginY = wxDEFAULT_BUTTON_MARGIN;
  57   }
  58
  59   int x = pos.x;
  60   int y = pos.y;
  61   int width = size.x;
  62   int height = size.y;
  63
  64   if (id == -1)
  65     m_windowId = NewControlId();
  66   else
  67     m_windowId = id;
  68
  69   if ( width == -1 && bitmap.Ok())
  70     width = bitmap.GetWidth() + 2*m_marginX;
  71
  72   if ( height == -1 && bitmap.Ok())
  73     height = bitmap.GetHeight() + 2*m_marginY;
  74
  75   HWND wx_button =
  76     CreateWindowEx(0, "BUTTON", "", BS_OWNERDRAW | WS_TABSTOP | WS_CHILD,
  77                     0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId,
  78                     wxGetInstance(), NULL);
  79
  80   m_hWnd = (WXHWND)wx_button;
  81
  82   // Subclass again for purposes of dialog editing mode
  83   SubclassWin((WXHWND)wx_button);
  84
  85   SetFont(* parent->GetFont()) ;
  86
  87   SetSize(x, y, width, height);
  88   ShowWindow(wx_button, SW_SHOW);
  89
  90   return TRUE;
  91 }
  92
  93 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
  94 {
  95   m_buttonBitmap = bitmap;
  96 }
  97
  98 bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
  99 {
 100     long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
 101 #if defined(__WIN95__)
 102     if (style & BS_BITMAP)
 103     {
 104         // Should we call Default() here?
 105 //      Default();
 106
 107         // Let default procedure draw the bitmap, which is defined
 108         // in the Windows resource.
 109         return FALSE;
 110     }
 111 #endif
 112
 113     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
 114
 115     wxBitmap* bitmap = &m_buttonBitmap;
 116
 117         UINT state = lpDIS->itemState;
 118         if ((state & ODS_SELECTED) && m_buttonBitmapSelected.Ok())
 119                 bitmap = &m_buttonBitmapSelected;
 120         else if ((state & ODS_FOCUS) && m_buttonBitmapFocus.Ok())
 121                 bitmap = &m_buttonBitmapFocus;
 122         else if ((state & ODS_DISABLED) && m_buttonBitmapDisabled.Ok())
 123                 bitmap = &m_buttonBitmapDisabled;
 124
 125         if ( !bitmap->Ok() )
 126                 return FALSE;
 127
 128         HDC hDC = lpDIS->hDC;
 129         HDC memDC = ::CreateCompatibleDC(hDC);
 130
 131         HBITMAP old = (HBITMAP) ::SelectObject(memDC, (HBITMAP) bitmap->GetHBITMAP());
 132
 133         if (!old)
 134                 return FALSE;
 135
 136         int x = lpDIS->rcItem.left;
 137         int y = lpDIS->rcItem.top;
 138         int width = lpDIS->rcItem.right - x;
 139         int height = lpDIS->rcItem.bottom - y;
 140
 141         // Draw the face, if auto-drawing
 142         if ( GetWindowStyleFlag() & wxBU_AUTODRAW )
 143                 DrawFace((WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 144             ((state & ODS_SELECTED) == ODS_SELECTED));
 145
 146     // Centre the bitmap in the control area
 147     int x1 = (int) (x + ((width - bitmap->GetWidth()) / 2));
 148     int y1 = (int) (y + ((height - bitmap->GetHeight()) / 2));
 149
 150     if ( (state & ODS_SELECTED) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
 151     {
 152         x1 ++;
 153         y1 ++;
 154     }
 155
 156     ::BitBlt(hDC, x1, y1, bitmap->GetWidth(), bitmap->GetHeight(), memDC, 0, 0, SRCCOPY);
 157
 158     if ( (state & ODS_DISABLED) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
 159         DrawButtonDisable( (WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom, TRUE ) ;
 160     else if ( (state & ODS_FOCUS) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
 161         DrawButtonFocus( (WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom, ((state & ODS_SELECTED) == ODS_SELECTED));
 162
 163     ::SelectObject(memDC, old);
 164
 165     ::DeleteDC(memDC);
 166
 167     return TRUE;
 168 }
 169
 170 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 171 {
 172   HPEN  oldp;
 173   HBRUSH    oldb ;
 174
 175   HPEN penBorder;
 176   HPEN penLight;
 177   HPEN penShadow;
 178   HBRUSH brushFace;
 179   COLORREF ms_color;
 180
 181     ms_color = GetSysColor(COLOR_WINDOWFRAME) ;
 182     penBorder = CreatePen(PS_SOLID,0,ms_color) ;
 183
 184     ms_color = GetSysColor(COLOR_BTNSHADOW) ;
 185     penShadow = CreatePen(PS_SOLID,0,ms_color) ;
 186
 187     ms_color = GetSysColor(COLOR_BTNHIGHLIGHT) ;
 188     penLight = CreatePen(PS_SOLID,0,ms_color) ;
 189
 190     ms_color = GetSysColor(COLOR_BTNFACE) ;
 191     brushFace = CreateSolidBrush(ms_color) ;
 192
 193     oldp = (HPEN) SelectObject( (HDC) dc, GetStockObject( NULL_PEN ) ) ;
 194     oldb = (HBRUSH) SelectObject( (HDC) dc, brushFace ) ;
 195     Rectangle( (HDC) dc, left, top, right, bottom ) ;
 196     SelectObject( (HDC) dc, penBorder) ;
 197         MoveToEx((HDC) dc,left+1,top,NULL);LineTo((HDC) dc,right-1,top);
 198         MoveToEx((HDC) dc,left,top+1,NULL);LineTo((HDC) dc,left,bottom-1);
 199         MoveToEx((HDC) dc,left+1,bottom-1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 200         MoveToEx((HDC) dc,right-1,top+1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 201
 202     SelectObject( (HDC) dc, penShadow) ;
 203     if (sel)
 204     {
 205         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL) ;
 206         LineTo((HDC) dc,  left+1    ,top+1) ;
 207         LineTo((HDC) dc,  right-2   ,top+1) ;
 208     }
 209     else
 210     {
 211         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL) ;
 212         LineTo((HDC) dc,  right-2   ,bottom-2) ;
 213         LineTo((HDC) dc,  right-2   ,top) ;
 214         MoveToEx((HDC) dc,left+2    ,bottom-3   ,NULL) ;
 215         LineTo((HDC) dc,  right-3   ,bottom-3) ;
 216         LineTo((HDC) dc,  right-3   ,top+1) ;
 217
 218         SelectObject( (HDC) dc, penLight) ;
 219
 220         MoveToEx((HDC) dc,left+1    ,bottom-2   ,NULL) ;
 221         LineTo((HDC) dc,  left+1    ,top+1) ;
 222         LineTo((HDC) dc,  right-2   ,top+1) ;
 223     }
 224     SelectObject((HDC) dc,oldp) ;
 225     SelectObject((HDC) dc,oldb) ;
 226
 227   DeleteObject(penBorder);
 228   DeleteObject(penLight);
 229   DeleteObject(penShadow);
 230   DeleteObject(brushFace);
 231 }
 232
 233 #define FOCUS_MARGIN 6
 234
 235 void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 236 {
 237     RECT rect;
 238     rect.left = left;
 239     rect.top = top;
 240     rect.right = right;
 241     rect.bottom = bottom;
 242     InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN ) ;
 243     if ( sel )
 244         OffsetRect( &rect, 1, 1 ) ;
 245     DrawFocusRect( (HDC) dc, &rect ) ;
 246 }
 247
 248 extern HBRUSH wxDisableButtonBrush;
 249 void wxBitmapButton::DrawButtonDisable( WXHDC dc, int left, int top, int right, int bottom, bool with_marg )
 250 {
 251     HBRUSH  old = (HBRUSH) SelectObject( (HDC) dc, wxDisableButtonBrush ) ;
 252
 253     if ( with_marg )
 254         ::PatBlt( (HDC) dc, left + m_marginX, top + m_marginY,
 255             right - 2 * m_marginX, bottom - 2 * m_marginY,
 256                 0xfa0089ul ) ;
 257     else    ::PatBlt( (HDC) dc, left, top, right, bottom, 0xfa0089ul ) ;
 258
 259     ::SelectObject( (HDC) dc, old ) ;
 260 }
 261