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->GetDefaultBackgroundColour() ;
  48   m_foregroundColour = parent->GetDefaultForegroundColour() ;
  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   // TODO? If in future we have a facility for having a label as well
  86   // as a bitmap, set the font.
  87 //  SetFont(parent->GetFont()) ;
  88
  89   SetSize(x, y, width, height);
  90   ShowWindow(wx_button, SW_SHOW);
  91
  92   return TRUE;
  93 }
  94
  95 void wxBitmapButton::SetBitmapLabel(const wxBitmap& bitmap)
  96 {
  97   m_buttonBitmap = bitmap;
  98 }
  99
 100 bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 101 {
 102         long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
 103 #if defined(__WIN95__)
 104         if (style & BS_BITMAP)
 105         {
 106                 // Should we call Default() here?
 107 //              Default();
 108
 109                 // Let default procedure draw the bitmap, which is defined
 110                 // in the Windows resource.
 111                 return FALSE;
 112         }
 113 #endif
 114
 115     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
 116
 117         wxBitmap* bitmap = &m_buttonBitmap;
 118
 119         UINT state = lpDIS->itemState;
 120         if ((state & ODS_SELECTED) && m_buttonBitmapSelected.Ok())
 121                 bitmap = &m_buttonBitmapSelected;
 122         else if ((state & ODS_FOCUS) && m_buttonBitmapFocus.Ok())
 123                 bitmap = &m_buttonBitmapFocus;
 124         else if ((state & ODS_DISABLED) && m_buttonBitmapDisabled.Ok())
 125                 bitmap = &m_buttonBitmapDisabled;
 126
 127         if ( !bitmap->Ok() )
 128                 return FALSE;
 129
 130         HDC hDC = lpDIS->hDC;
 131         HDC memDC = ::CreateCompatibleDC(hDC);
 132
 133         HBITMAP old = ::SelectObject(memDC, (HBITMAP) bitmap->GetHBITMAP());
 134
 135         if (!old)
 136                 return FALSE;
 137
 138         RECT rect = lpDIS->rcItem;
 139
 140         int x = lpDIS->rcItem.left;
 141         int y = lpDIS->rcItem.top;
 142         int width = lpDIS->rcItem.right - x;
 143         int height = lpDIS->rcItem.bottom - y;
 144
 145         // Draw the face, if auto-drawing
 146         if ( GetWindowStyleFlag() & wxBU_AUTODRAW )
 147                 DrawFace((WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 148             ((state & ODS_SELECTED) == ODS_SELECTED));
 149
 150         // Centre the bitmap in the control area
 151         int x1 = (int) (x + ((width - bitmap->GetWidth()) / 2));
 152         int y1 = (int) (y + ((height - bitmap->GetHeight()) / 2));
 153
 154         if ( (state & ODS_SELECTED) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
 155         {
 156                 x1 ++;
 157                 y1 ++;
 158         }
 159
 160         ::BitBlt(hDC, x1, y1, bitmap->GetWidth(), bitmap->GetHeight(), memDC, 0, 0, SRCCOPY);
 161
 162         if ( (state & ODS_DISABLED) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
 163                 DrawButtonDisable( (WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom, TRUE ) ;
 164         else if ( (state & ODS_FOCUS) && (GetWindowStyleFlag() & wxBU_AUTODRAW) )
 165                 DrawButtonFocus( (WXHDC) hDC, lpDIS->rcItem.left, lpDIS->rcItem.top, lpDIS->rcItem.right, lpDIS->rcItem.bottom, ((state & ODS_SELECTED) == ODS_SELECTED));
 166
 167         ::SelectObject(memDC, old);
 168
 169     ::DeleteDC(memDC);
 170
 171     return TRUE;
 172 }
 173
 174 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 175 {
 176   HPEN  oldp;
 177   HBRUSH        oldb ;
 178
 179   HPEN penBorder;
 180   HPEN penLight;
 181   HPEN penShadow;
 182   HBRUSH brushFace;
 183   COLORREF ms_color;
 184
 185         ms_color = GetSysColor(COLOR_WINDOWFRAME) ;
 186         penBorder = CreatePen(PS_SOLID,0,ms_color) ;
 187
 188         ms_color = GetSysColor(COLOR_BTNSHADOW) ;
 189         penShadow = CreatePen(PS_SOLID,0,ms_color) ;
 190
 191         ms_color = GetSysColor(COLOR_BTNHIGHLIGHT) ;
 192         penLight = CreatePen(PS_SOLID,0,ms_color) ;
 193
 194         ms_color = GetSysColor(COLOR_BTNFACE) ;
 195         brushFace = CreateSolidBrush(ms_color) ;
 196
 197         oldp = SelectObject( (HDC) dc, GetStockObject( NULL_PEN ) ) ;
 198         oldb = SelectObject( (HDC) dc, brushFace ) ;
 199         Rectangle( (HDC) dc, left, top, right, bottom ) ;
 200         SelectObject( (HDC) dc, penBorder) ;
 201         MoveToEx((HDC) dc,left+1,top,NULL);LineTo((HDC) dc,right-1,top);
 202         MoveToEx((HDC) dc,left,top+1,NULL);LineTo((HDC) dc,left,bottom-1);
 203         MoveToEx((HDC) dc,left+1,bottom-1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 204         MoveToEx((HDC) dc,right-1,top+1,NULL);LineTo((HDC) dc,right-1,bottom-1);
 205
 206         SelectObject( (HDC) dc, penShadow) ;
 207         if (sel)
 208         {
 209                 MoveToEx((HDC) dc,left+1        ,bottom-2       ,NULL) ;
 210                 LineTo((HDC) dc,  left+1        ,top+1) ;
 211                 LineTo((HDC) dc,  right-2       ,top+1) ;
 212         }
 213         else
 214         {
 215                 MoveToEx((HDC) dc,left+1        ,bottom-2       ,NULL) ;
 216                 LineTo((HDC) dc,  right-2       ,bottom-2) ;
 217                 LineTo((HDC) dc,  right-2       ,top) ;
 218                 MoveToEx((HDC) dc,left+2        ,bottom-3       ,NULL) ;
 219                 LineTo((HDC) dc,  right-3       ,bottom-3) ;
 220                 LineTo((HDC) dc,  right-3       ,top+1) ;
 221
 222                 SelectObject( (HDC) dc, penLight) ;
 223
 224                 MoveToEx((HDC) dc,left+1        ,bottom-2       ,NULL) ;
 225                 LineTo((HDC) dc,  left+1        ,top+1) ;
 226                 LineTo((HDC) dc,  right-2       ,top+1) ;
 227         }
 228         SelectObject((HDC) dc,oldp) ;
 229         SelectObject((HDC) dc,oldb) ;
 230
 231   DeleteObject(penBorder);
 232   DeleteObject(penLight);
 233   DeleteObject(penShadow);
 234   DeleteObject(brushFace);
 235 }
 236
 237 #define FOCUS_MARGIN 6
 238
 239 void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right, int bottom, bool sel )
 240 {
 241         RECT rect;
 242         rect.left = left;
 243         rect.top = top;
 244         rect.right = right;
 245         rect.bottom = bottom;
 246         InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN ) ;
 247         if ( sel )
 248                 OffsetRect( &rect, 1, 1 ) ;
 249         DrawFocusRect( (HDC) dc, &rect ) ;
 250 }
 251
 252 extern HBRUSH wxDisableButtonBrush;
 253 void wxBitmapButton::DrawButtonDisable( WXHDC dc, int left, int top, int right, int bottom, bool with_marg )
 254 {
 255         HBRUSH  old = SelectObject( (HDC) dc, wxDisableButtonBrush ) ;
 256
 257         if ( with_marg )
 258                 ::PatBlt( (HDC) dc, left + m_marginX, top + m_marginY,
 259                         right - 2 * m_marginX, bottom - 2 * m_marginY,
 260                                 0xfa0089ul ) ;
 261         else    ::PatBlt( (HDC) dc, left, top, right, bottom, 0xfa0089ul ) ;
 262
 263         ::SelectObject( (HDC) dc, old ) ;
 264 }
 265