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 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #if wxUSE_BMPBUTTON
  20
  21 #ifndef WX_PRECOMP
  22     #include "wx/bmpbuttn.h"
  23     #include "wx/log.h"
  24     #include "wx/dcmemory.h"
  25 #endif
  26
  27 #include "wx/msw/private.h"
  28 #include "wx/image.h"
  29 #include "wx/msw/uxtheme.h"
  30
  31 // ----------------------------------------------------------------------------
  32 // macros
  33 // ----------------------------------------------------------------------------
  34
  35 #if wxUSE_EXTENDED_RTTI
  36
  37 WX_DEFINE_FLAGS( wxBitmapButtonStyle )
  38
  39 wxBEGIN_FLAGS( wxBitmapButtonStyle )
  40     // new style border flags, we put them first to
  41     // use them for streaming out
  42     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  43     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  44     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  45     wxFLAGS_MEMBER(wxBORDER_RAISED)
  46     wxFLAGS_MEMBER(wxBORDER_STATIC)
  47     wxFLAGS_MEMBER(wxBORDER_NONE)
  48
  49     // old style border flags
  50     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  51     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  52     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  53     wxFLAGS_MEMBER(wxRAISED_BORDER)
  54     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  55     wxFLAGS_MEMBER(wxBORDER)
  56
  57     // standard window styles
  58     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  59     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  60     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  61     wxFLAGS_MEMBER(wxWANTS_CHARS)
  62     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  63     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  64     wxFLAGS_MEMBER(wxVSCROLL)
  65     wxFLAGS_MEMBER(wxHSCROLL)
  66
  67     wxFLAGS_MEMBER(wxBU_AUTODRAW)
  68     wxFLAGS_MEMBER(wxBU_LEFT)
  69     wxFLAGS_MEMBER(wxBU_RIGHT)
  70     wxFLAGS_MEMBER(wxBU_TOP)
  71     wxFLAGS_MEMBER(wxBU_BOTTOM)
  72 wxEND_FLAGS( wxBitmapButtonStyle )
  73
  74 IMPLEMENT_DYNAMIC_CLASS_XTI(wxBitmapButton, wxButton,"wx/bmpbuttn.h")
  75
  76 wxBEGIN_PROPERTIES_TABLE(wxBitmapButton)
  77     wxPROPERTY_FLAGS( WindowStyle , wxBitmapButtonStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
  78 wxEND_PROPERTIES_TABLE()
  79
  80 wxBEGIN_HANDLERS_TABLE(wxBitmapButton)
  81 wxEND_HANDLERS_TABLE()
  82
  83 wxCONSTRUCTOR_5( wxBitmapButton , wxWindow* , Parent , wxWindowID , Id , wxBitmap , Bitmap , wxPoint , Position , wxSize , Size )
  84
  85 #else
  86 IMPLEMENT_DYNAMIC_CLASS(wxBitmapButton, wxButton)
  87 #endif
  88
  89 BEGIN_EVENT_TABLE(wxBitmapButton, wxBitmapButtonBase)
  90     EVT_SYS_COLOUR_CHANGED(wxBitmapButton::OnSysColourChanged)
  91     EVT_ENTER_WINDOW(wxBitmapButton::OnMouseEnterOrLeave)
  92     EVT_LEAVE_WINDOW(wxBitmapButton::OnMouseEnterOrLeave)
  93 END_EVENT_TABLE()
  94
  95 /*
  96 TODO PROPERTIES :
  97
  98 long "style" , wxBU_AUTODRAW
  99 bool "default" , 0
 100 bitmap "selected" ,
 101 bitmap "focus" ,
 102 bitmap "disabled" ,
 103 */
 104
 105 bool wxBitmapButton::Create(wxWindow *parent, wxWindowID id,
 106     const wxBitmap& bitmap,
 107     const wxPoint& pos,
 108     const wxSize& size, long style,
 109     const wxValidator& wxVALIDATOR_PARAM(validator),
 110     const wxString& name)
 111 {
 112     m_bmpNormal = bitmap;
 113     SetName(name);
 114
 115 #if wxUSE_VALIDATORS
 116     SetValidator(validator);
 117 #endif // wxUSE_VALIDATORS
 118
 119     parent->AddChild(this);
 120
 121     m_backgroundColour = parent->GetBackgroundColour();
 122     m_foregroundColour = parent->GetForegroundColour();
 123     m_windowStyle = style;
 124
 125     if ( style & wxBU_AUTODRAW )
 126     {
 127         m_marginX =
 128         m_marginY = 4;
 129     }
 130
 131     if (id == wxID_ANY)
 132         m_windowId = NewControlId();
 133     else
 134         m_windowId = id;
 135
 136     long msStyle = WS_VISIBLE | WS_TABSTOP | WS_CHILD | BS_OWNERDRAW ;
 137
 138     if ( m_windowStyle & wxCLIP_SIBLINGS )
 139         msStyle |= WS_CLIPSIBLINGS;
 140
 141 #ifdef __WIN32__
 142     if(m_windowStyle & wxBU_LEFT)
 143         msStyle |= BS_LEFT;
 144     if(m_windowStyle & wxBU_RIGHT)
 145         msStyle |= BS_RIGHT;
 146     if(m_windowStyle & wxBU_TOP)
 147         msStyle |= BS_TOP;
 148     if(m_windowStyle & wxBU_BOTTOM)
 149         msStyle |= BS_BOTTOM;
 150 #endif
 151
 152     m_hWnd = (WXHWND) CreateWindowEx(
 153                     0,
 154                     wxT("BUTTON"),
 155                     wxEmptyString,
 156                     msStyle,
 157                     0, 0, 0, 0,
 158                     GetWinHwnd(parent),
 159                     (HMENU)m_windowId,
 160                     wxGetInstance(),
 161                     NULL
 162                    );
 163
 164     // Subclass again for purposes of dialog editing mode
 165     SubclassWin(m_hWnd);
 166
 167     SetPosition(pos);
 168     SetBestSize(size);
 169
 170     return true;
 171 }
 172
 173 bool wxBitmapButton::SetBackgroundColour(const wxColour& colour)
 174 {
 175     if ( !wxBitmapButtonBase::SetBackgroundColour(colour) )
 176     {
 177         // didn't change
 178         return false;
 179     }
 180
 181     // invalidate the brush, it will be recreated the next time it's needed
 182     m_brushDisabled = wxNullBrush;
 183
 184     return true;
 185 }
 186
 187 void wxBitmapButton::OnSysColourChanged(wxSysColourChangedEvent& event)
 188 {
 189     m_brushDisabled = wxNullBrush;
 190
 191     if ( !IsEnabled() )
 192     {
 193         // this change affects our current state
 194         Refresh();
 195     }
 196
 197     event.Skip();
 198 }
 199
 200 void wxBitmapButton::OnMouseEnterOrLeave(wxMouseEvent& event)
 201 {
 202     if ( IsEnabled() && m_bmpHover.Ok() )
 203         Refresh();
 204
 205     event.Skip();
 206 }
 207
 208 void wxBitmapButton::OnSetBitmap()
 209 {
 210     // if the focus bitmap is specified but hover one isn't, use the focus
 211     // bitmap for hovering as well if this is consistent with the current
 212     // Windows version look and feel
 213     //
 214     // rationale: this is compatible with the old wxGTK behaviour and also
 215     // makes it much easier to do "the right thing" for all platforms (some of
 216     // them, such as Windows XP, have "hot" buttons while others don't)
 217     if ( !m_bmpHover.Ok() &&
 218             m_bmpFocus.Ok() &&
 219                 wxUxThemeEngine::GetIfActive() )
 220     {
 221         m_bmpHover = m_bmpFocus;
 222     }
 223
 224     // this will redraw us
 225     wxBitmapButtonBase::OnSetBitmap();
 226 }
 227
 228 // VZ: should be at the very least less than wxDEFAULT_BUTTON_MARGIN
 229 #define FOCUS_MARGIN 3
 230
 231 bool wxBitmapButton::MSWOnDraw(WXDRAWITEMSTRUCT *item)
 232 {
 233 #ifndef __WXWINCE__
 234     long style = GetWindowLong((HWND) GetHWND(), GWL_STYLE);
 235     if (style & BS_BITMAP)
 236     {
 237         // Let default procedure draw the bitmap, which is defined
 238         // in the Windows resource.
 239         return false;
 240     }
 241 #endif
 242
 243     LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT) item;
 244     HDC hDC                = lpDIS->hDC;
 245     UINT state             = lpDIS->itemState;
 246     bool isSelected        = (state & ODS_SELECTED) != 0;
 247     bool autoDraw          = (GetWindowStyleFlag() & wxBU_AUTODRAW) != 0;
 248
 249
 250     // choose the bitmap to use depending on the button state
 251     wxBitmap *bitmap;
 252
 253     if ( isSelected && m_bmpSelected.Ok() )
 254         bitmap = &m_bmpSelected;
 255     else if ( m_bmpHover.Ok() && IsMouseInWindow() )
 256         bitmap = &m_bmpHover;
 257     else if ((state & ODS_FOCUS) && m_bmpFocus.Ok())
 258         bitmap = &m_bmpFocus;
 259     else if ((state & ODS_DISABLED) && m_bmpDisabled.Ok())
 260         bitmap = &m_bmpDisabled;
 261     else
 262         bitmap = &m_bmpNormal;
 263
 264     if ( !bitmap->Ok() )
 265         return false;
 266
 267     // centre the bitmap in the control area
 268     int x      = lpDIS->rcItem.left;
 269     int y      = lpDIS->rcItem.top;
 270     int width  = lpDIS->rcItem.right - x;
 271     int height = lpDIS->rcItem.bottom - y;
 272     int wBmp   = bitmap->GetWidth();
 273     int hBmp   = bitmap->GetHeight();
 274
 275     int x1,y1;
 276
 277     if(m_windowStyle & wxBU_LEFT)
 278         x1 = x + (FOCUS_MARGIN+1);
 279     else if(m_windowStyle & wxBU_RIGHT)
 280         x1 = x + (width - wBmp) - (FOCUS_MARGIN+1);
 281     else
 282         x1 = x + (width - wBmp) / 2;
 283
 284     if(m_windowStyle & wxBU_TOP)
 285         y1 = y + (FOCUS_MARGIN+1);
 286     else if(m_windowStyle & wxBU_BOTTOM)
 287         y1 = y + (height - hBmp) - (FOCUS_MARGIN+1);
 288     else
 289         y1 = y + (height - hBmp) / 2;
 290
 291     if ( isSelected && autoDraw )
 292     {
 293         x1++;
 294         y1++;
 295     }
 296
 297     // draw the face, if auto-drawing
 298     if ( autoDraw )
 299     {
 300         DrawFace((WXHDC) hDC,
 301                  lpDIS->rcItem.left, lpDIS->rcItem.top,
 302                  lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 303                  isSelected);
 304     }
 305
 306     // draw the bitmap
 307     wxDC dst;
 308     dst.SetHDC((WXHDC) hDC, false);
 309     dst.DrawBitmap(*bitmap, x1, y1, true);
 310
 311     // draw focus / disabled state, if auto-drawing
 312     if ( (state & ODS_DISABLED) && autoDraw )
 313     {
 314         DrawButtonDisable((WXHDC) hDC,
 315                           lpDIS->rcItem.left, lpDIS->rcItem.top,
 316                           lpDIS->rcItem.right, lpDIS->rcItem.bottom,
 317                           true);
 318     }
 319     else if ( (state & ODS_FOCUS) && autoDraw )
 320     {
 321         DrawButtonFocus((WXHDC) hDC,
 322                         lpDIS->rcItem.left,
 323                         lpDIS->rcItem.top,
 324                         lpDIS->rcItem.right,
 325                         lpDIS->rcItem.bottom,
 326                         isSelected);
 327     }
 328
 329     return true;
 330 }
 331
 332 // GRG Feb/2000, support for bmp buttons with Win95/98 standard LNF
 333
 334 void wxBitmapButton::DrawFace( WXHDC dc, int left, int top,
 335     int right, int bottom, bool sel )
 336 {
 337     HPEN oldp;
 338     HPEN penHiLight;
 339     HPEN penLight;
 340     HPEN penShadow;
 341     HPEN penDkShadow;
 342     HBRUSH brushFace;
 343
 344     // create needed pens and brush
 345     penHiLight  = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DHILIGHT));
 346     penLight    = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DLIGHT));
 347     penShadow   = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DSHADOW));
 348     penDkShadow = CreatePen(PS_SOLID, 0, GetSysColor(COLOR_3DDKSHADOW));
 349     // brushFace   = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
 350     // Taking the background colour fits in better with
 351     // Windows XP themes.
 352     brushFace   = CreateSolidBrush(m_backgroundColour.m_pixel);
 353
 354     // draw the rectangle
 355     RECT rect;
 356     rect.left   = left;
 357     rect.right  = right;
 358     rect.top    = top;
 359     rect.bottom = bottom;
 360     FillRect((HDC) dc, &rect, brushFace);
 361
 362     // draw the border
 363     oldp = (HPEN) SelectObject( (HDC) dc, sel? penDkShadow : penHiLight);
 364
 365     wxDrawLine((HDC) dc, left, top, right-1, top);
 366     wxDrawLine((HDC) dc, left, top+1, left, bottom-1);
 367
 368     SelectObject( (HDC) dc, sel? penShadow : penLight);
 369     wxDrawLine((HDC) dc, left+1, top+1, right-2, top+1);
 370     wxDrawLine((HDC) dc, left+1, top+2, left+1, bottom-2);
 371
 372     SelectObject( (HDC) dc, sel? penLight : penShadow);
 373     wxDrawLine((HDC) dc, left+1, bottom-2, right-1, bottom-2);
 374     wxDrawLine((HDC) dc, right-2, bottom-3, right-2, top);
 375
 376     SelectObject( (HDC) dc, sel? penHiLight : penDkShadow);
 377     wxDrawLine((HDC) dc, left, bottom-1, right+2, bottom-1);
 378     wxDrawLine((HDC) dc, right-1, bottom-2, right-1, top-1);
 379
 380     // delete allocated resources
 381     SelectObject((HDC) dc,oldp);
 382     DeleteObject(penHiLight);
 383     DeleteObject(penLight);
 384     DeleteObject(penShadow);
 385     DeleteObject(penDkShadow);
 386     DeleteObject(brushFace);
 387 }
 388
 389 void wxBitmapButton::DrawButtonFocus( WXHDC dc, int left, int top, int right,
 390     int bottom, bool WXUNUSED(sel) )
 391 {
 392     RECT rect;
 393     rect.left = left;
 394     rect.top = top;
 395     rect.right = right;
 396     rect.bottom = bottom;
 397     InflateRect( &rect, - FOCUS_MARGIN, - FOCUS_MARGIN );
 398
 399     // GRG: the focus rectangle should not move when the button is pushed!
 400 /*
 401     if ( sel )
 402         OffsetRect( &rect, 1, 1 );
 403 */
 404
 405     DrawFocusRect( (HDC) dc, &rect );
 406 }
 407
 408 void
 409 wxBitmapButton::DrawButtonDisable( WXHDC dc,
 410                                    int left, int top, int right, int bottom,
 411                                    bool with_marg )
 412 {
 413     if ( !m_brushDisabled.Ok() )
 414     {
 415         // draw a bitmap with two black and two background colour pixels
 416         wxBitmap bmp(2, 2);
 417         wxMemoryDC dc;
 418         dc.SelectObject(bmp);
 419         dc.SetPen(*wxBLACK_PEN);
 420         dc.DrawPoint(0, 0);
 421         dc.DrawPoint(1, 1);
 422         dc.SetPen(GetBackgroundColour());
 423         dc.DrawPoint(0, 1);
 424         dc.DrawPoint(1, 0);
 425
 426         m_brushDisabled = wxBrush(bmp);
 427     }
 428
 429     SelectInHDC selectBrush((HDC)dc, GetHbrushOf(m_brushDisabled));
 430
 431     // ROP for "dest |= pattern" operation -- as it doesn't have a standard
 432     // name, give it our own
 433     static const DWORD PATTERNPAINT = 0xFA0089UL;
 434
 435     if ( with_marg )
 436     {
 437         left += m_marginX;
 438         top += m_marginY;
 439         right -= 2 * m_marginX;
 440         bottom -= 2 * m_marginY;
 441     }
 442
 443     ::PatBlt( (HDC) dc, left, top, right, bottom, PATTERNPAINT);
 444 }
 445
 446 void wxBitmapButton::SetDefault()
 447 {
 448     wxButton::SetDefault();
 449 }
 450
 451 wxSize wxBitmapButton::DoGetBestSize() const
 452 {
 453     if ( m_bmpNormal.Ok() )
 454     {
 455         wxSize best(m_bmpNormal.GetWidth() + 2*m_marginX,
 456                       m_bmpNormal.GetHeight() + 2*m_marginY);
 457         CacheBestSize(best);
 458         return best;
 459     }
 460
 461     // no idea what our best size should be, defer to the base class
 462     return wxBitmapButtonBase::DoGetBestSize();
 463 }
 464
 465 #endif // wxUSE_BMPBUTTON