src/msw/combo.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/combo.cpp
   3 // Purpose:     wxMSW wxComboCtrl
   4 // Author:      Jaakko Salli
   5 // Modified by:
   6 // Created:     Apr-30-2006
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2005 Jaakko Salli
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #include "wx/wxprec.h"
  21
  22 #ifdef __BORLANDC__
  23     #pragma hdrstop
  24 #endif
  25
  26 #if wxUSE_COMBOCTRL
  27
  28 #ifndef WX_PRECOMP
  29     #include "wx/log.h"
  30     #include "wx/combobox.h"
  31     #include "wx/dcclient.h"
  32     #include "wx/settings.h"
  33     #include "wx/dialog.h"
  34     #include "wx/stopwatch.h"
  35 #endif
  36
  37 #include "wx/dcbuffer.h"
  38 #include "wx/combo.h"
  39
  40 #include "wx/msw/registry.h"
  41 #if wxUSE_UXTHEME
  42 #include "wx/msw/uxtheme.h"
  43 #endif
  44 #include "wx/msw/dc.h"
  45
  46 // Change to #if 1 to include tmschema.h for easier testing of theme
  47 // parameters.
  48 #if 0
  49     #include <tmschema.h>
  50     #include <VSStyle.h>
  51 #else
  52     //----------------------------------
  53     #define EP_EDITTEXT         1
  54     #define ETS_NORMAL          1
  55     #define ETS_HOT             2
  56     #define ETS_SELECTED        3
  57     #define ETS_DISABLED        4
  58     #define ETS_FOCUSED         5
  59     #define ETS_READONLY        6
  60     #define ETS_ASSIST          7
  61     #define TMT_FILLCOLOR       3802
  62     #define TMT_TEXTCOLOR       3803
  63     #define TMT_BORDERCOLOR     3801
  64     #define TMT_EDGEFILLCOLOR   3808
  65     #define TMT_BGTYPE          4001
  66
  67     #define BT_IMAGEFILE        0
  68     #define BT_BORDERFILL       1
  69
  70     #define CP_DROPDOWNBUTTON           1
  71     #define CP_BACKGROUND               2 // This and above are Vista and later only
  72     #define CP_TRANSPARENTBACKGROUND    3
  73     #define CP_BORDER                   4
  74     #define CP_READONLY                 5
  75     #define CP_DROPDOWNBUTTONRIGHT      6
  76     #define CP_DROPDOWNBUTTONLEFT       7
  77     #define CP_CUEBANNER                8
  78
  79     #define CBXS_NORMAL                 1
  80     #define CBXS_HOT                    2
  81     #define CBXS_PRESSED                3
  82     #define CBXS_DISABLED               4
  83
  84     #define CBXSR_NORMAL                1
  85     #define CBXSR_HOT                   2
  86     #define CBXSR_PRESSED               3
  87     #define CBXSR_DISABLED              4
  88
  89     #define CBXSL_NORMAL                1
  90     #define CBXSL_HOT                   2
  91     #define CBXSL_PRESSED               3
  92     #define CBXSL_DISABLED              4
  93
  94     #define CBTBS_NORMAL                1
  95     #define CBTBS_HOT                   2
  96     #define CBTBS_DISABLED              3
  97     #define CBTBS_FOCUSED               4
  98
  99     #define CBB_NORMAL                  1
 100     #define CBB_HOT                     2
 101     #define CBB_FOCUSED                 3
 102     #define CBB_DISABLED                4
 103
 104     #define CBRO_NORMAL                 1
 105     #define CBRO_HOT                    2
 106     #define CBRO_PRESSED                3
 107     #define CBRO_DISABLED               4
 108
 109     #define CBCB_NORMAL                 1
 110     #define CBCB_HOT                    2
 111     #define CBCB_PRESSED                3
 112     #define CBCB_DISABLED               4
 113
 114 #endif
 115
 116
 117 #define NATIVE_TEXT_INDENT_XP       4
 118 #define NATIVE_TEXT_INDENT_CLASSIC  2
 119
 120 #define TEXTCTRLYADJUST_XP          3
 121 #define TEXTCTRLYADJUST_CLASSIC     3
 122
 123 #define COMBOBOX_ANIMATION_RESOLUTION   10
 124
 125 #define COMBOBOX_ANIMATION_DURATION     200  // In milliseconds
 126
 127 #define wxMSW_DESKTOP_USERPREFERENCESMASK_COMBOBOXANIM    (1<<2)
 128
 129
 130 // ============================================================================
 131 // implementation
 132 // ============================================================================
 133
 134
 135 BEGIN_EVENT_TABLE(wxComboCtrl, wxComboCtrlBase)
 136     EVT_PAINT(wxComboCtrl::OnPaintEvent)
 137     EVT_MOUSE_EVENTS(wxComboCtrl::OnMouseEvent)
 138 #if wxUSE_COMBOCTRL_POPUP_ANIMATION
 139     EVT_TIMER(wxID_ANY, wxComboCtrl::OnTimerEvent)
 140 #endif
 141 END_EVENT_TABLE()
 142
 143
 144 IMPLEMENT_DYNAMIC_CLASS(wxComboCtrl, wxComboCtrlBase)
 145
 146 void wxComboCtrl::Init()
 147 {
 148 }
 149
 150 bool wxComboCtrl::Create(wxWindow *parent,
 151                             wxWindowID id,
 152                             const wxString& value,
 153                             const wxPoint& pos,
 154                             const wxSize& size,
 155                             long style,
 156                             const wxValidator& validator,
 157                             const wxString& name)
 158 {
 159
 160     // Set border
 161     long border = style & wxBORDER_MASK;
 162
 163 #if wxUSE_UXTHEME
 164     wxUxThemeEngine* theme = wxUxThemeEngine::GetIfActive();
 165 #endif
 166
 167     if ( !border )
 168     {
 169 #if wxUSE_UXTHEME
 170         if ( theme )
 171         {
 172             // For XP, have 1-width custom border, for older version use sunken
 173             border = wxBORDER_NONE;
 174             m_widthCustomBorder = 1;
 175         }
 176         else
 177 #endif
 178             border = wxBORDER_SUNKEN;
 179
 180         style = (style & ~(wxBORDER_MASK)) | border;
 181     }
 182
 183     // create main window
 184     if ( !wxComboCtrlBase::Create(parent,
 185                            id,
 186                            value,
 187                            pos,
 188                            size,
 189                            style | wxFULL_REPAINT_ON_RESIZE,
 190                            wxDefaultValidator,
 191                            name) )
 192         return false;
 193
 194 #if wxUSE_UXTHEME
 195     if ( theme )
 196     {
 197         if ( ::wxGetWinVersion() >= wxWinVersion_Vista )
 198             m_iFlags |= wxCC_BUTTON_STAYS_DOWN |wxCC_BUTTON_COVERS_BORDER;
 199     }
 200 #endif
 201
 202     if ( style & wxCC_STD_BUTTON )
 203         m_iFlags |= wxCC_POPUP_ON_MOUSE_UP;
 204
 205     // Create textctrl, if necessary
 206     CreateTextCtrl( wxNO_BORDER, validator );
 207
 208     // Add keyboard input handlers for main control and textctrl
 209     InstallInputHandlers();
 210
 211     // Prepare background for double-buffering
 212     SetBackgroundStyle( wxBG_STYLE_CUSTOM );
 213
 214     // SetInitialSize should be called last
 215     SetInitialSize(size);
 216
 217     return true;
 218 }
 219
 220 wxComboCtrl::~wxComboCtrl()
 221 {
 222 }
 223
 224 void wxComboCtrl::OnThemeChange()
 225 {
 226     // there doesn't seem to be any way to get the text colour using themes
 227     // API: TMT_TEXTCOLOR doesn't work neither for EDIT nor COMBOBOX
 228     SetForegroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT));
 229
 230 #if wxUSE_UXTHEME
 231     wxUxThemeEngine * const theme = wxUxThemeEngine::GetIfActive();
 232     if ( theme )
 233     {
 234         // NB: use EDIT, not COMBOBOX (the latter works in XP but not Vista)
 235         wxUxThemeHandle hTheme(this, L"EDIT");
 236         COLORREF col;
 237         HRESULT hr = theme->GetThemeColor
 238                             (
 239                                 hTheme,
 240                                 EP_EDITTEXT,
 241                                 ETS_NORMAL,
 242                                 TMT_FILLCOLOR,
 243                                 &col
 244                             );
 245         if ( SUCCEEDED(hr) )
 246         {
 247             SetBackgroundColour(wxRGBToColour(col));
 248
 249             // skip the call below
 250             return;
 251         }
 252
 253         wxLogApiError(wxT("GetThemeColor(EDIT, ETS_NORMAL, TMT_FILLCOLOR)"), hr);
 254     }
 255 #endif
 256
 257     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW));
 258 }
 259
 260 void wxComboCtrl::OnResize()
 261 {
 262     //
 263     // Recalculates button and textctrl areas
 264
 265     int textCtrlYAdjust;
 266
 267 #if wxUSE_UXTHEME
 268     if ( wxUxThemeEngine::GetIfActive() )
 269     {
 270         textCtrlYAdjust = TEXTCTRLYADJUST_XP;
 271     }
 272     else
 273 #endif
 274     {
 275         textCtrlYAdjust = TEXTCTRLYADJUST_CLASSIC;
 276     }
 277
 278     // Technically Classic Windows style combo has more narrow button,
 279     // but the native renderer doesn't paint it well like that.
 280     int btnWidth = 17;
 281     CalculateAreas(btnWidth);
 282
 283     // Position textctrl using standard routine
 284     PositionTextCtrl(0, textCtrlYAdjust);
 285 }
 286
 287 // Draws non-XP GUI dotted line around the focus area
 288 static void wxMSWDrawFocusRect( wxDC& dc, const wxRect& rect )
 289 {
 290 #if !defined(__WXWINCE__)
 291     /*
 292     RECT mswRect;
 293     mswRect.left = rect.x;
 294     mswRect.top = rect.y;
 295     mswRect.right = rect.x + rect.width;
 296     mswRect.bottom = rect.y + rect.height;
 297     HDC hdc = (HDC) dc.GetHDC();
 298     SetMapMode(hdc,MM_TEXT); // Just in case...
 299     DrawFocusRect(hdc,&mswRect);
 300     */
 301     // FIXME: Use DrawFocusRect code above (currently it draws solid line
 302     //   for caption focus but works ok for other stuff).
 303     //   Also, this code below may not work in future wx versions, since
 304     //   it employs wxCAP_BUTT hack to have line of width 1.
 305     dc.SetLogicalFunction(wxINVERT);
 306
 307     wxPen pen(*wxBLACK, 1, wxPENSTYLE_DOT);
 308     pen.SetCap(wxCAP_BUTT);
 309     dc.SetPen(pen);
 310     dc.SetBrush(*wxTRANSPARENT_BRUSH);
 311
 312     dc.DrawRectangle(rect);
 313
 314     dc.SetLogicalFunction(wxCOPY);
 315 #else
 316     dc.SetLogicalFunction(wxINVERT);
 317
 318     dc.SetPen(wxPen(*wxBLACK,1,wxDOT));
 319     dc.SetBrush(*wxTRANSPARENT_BRUSH);
 320
 321     dc.DrawRectangle(rect);
 322
 323     dc.SetLogicalFunction(wxCOPY);
 324 #endif
 325 }
 326
 327 // draw focus background on area in a way typical on platform
 328 void
 329 wxComboCtrl::PrepareBackground( wxDC& dc, const wxRect& rect, int flags ) const
 330 {
 331 #if wxUSE_UXTHEME
 332     wxUxThemeHandle hTheme(this, L"COMBOBOX");
 333 #endif
 334
 335     wxSize sz = GetClientSize();
 336     bool isEnabled;
 337     bool doDrawFocusRect; // also selected
 338
 339     // For smaller size control (and for disabled background) use less spacing
 340     int focusSpacingX;
 341     int focusSpacingY;
 342
 343     if ( !(flags & wxCONTROL_ISSUBMENU) )
 344     {
 345         // Drawing control
 346         isEnabled = IsEnabled();
 347         doDrawFocusRect = ShouldDrawFocus();
 348
 349 #if wxUSE_UXTHEME
 350         // Windows-style: for smaller size control (and for disabled background) use less spacing
 351         if ( hTheme )
 352         {
 353             // WinXP  Theme
 354             focusSpacingX = isEnabled ? 2 : 1;
 355             focusSpacingY = sz.y > (GetCharHeight()+2) && isEnabled ? 2 : 1;
 356         }
 357         else
 358 #endif
 359         {
 360             // Classic Theme
 361             if ( isEnabled )
 362             {
 363                 focusSpacingX = 1;
 364                 focusSpacingY = 1;
 365             }
 366             else
 367             {
 368                 focusSpacingX = 0;
 369                 focusSpacingY = 0;
 370             }
 371         }
 372     }
 373     else
 374     {
 375         // Drawing a list item
 376         isEnabled = true; // they are never disabled
 377         doDrawFocusRect = flags & wxCONTROL_SELECTED ? true : false;
 378
 379         focusSpacingX = 0;
 380         focusSpacingY = 0;
 381     }
 382
 383     // Set the background sub-rectangle for selection, disabled etc
 384     wxRect selRect(rect);
 385     selRect.y += focusSpacingY;
 386     selRect.height -= (focusSpacingY*2);
 387
 388     int wcp = 0;
 389
 390     if ( !(flags & wxCONTROL_ISSUBMENU) )
 391         wcp += m_widthCustomPaint;
 392
 393     selRect.x += wcp + focusSpacingX;
 394     selRect.width -= wcp + (focusSpacingX*2);
 395
 396     //wxUxThemeEngine* theme = NULL;
 397     //if ( hTheme )
 398     //    theme = wxUxThemeEngine::GetIfActive();
 399
 400     wxColour bgCol;
 401     bool doDrawDottedEdge = false;
 402     bool doDrawSelRect = true;
 403
 404     // TODO: doDrawDottedEdge = true when focus has arrived to control via tab.
 405     //       (and other cases which are not that apparent).
 406
 407     if ( isEnabled )
 408     {
 409         // If popup is hidden and this control is focused,
 410         // then draw the focus-indicator (selbgcolor background etc.).
 411         if ( doDrawFocusRect )
 412         {
 413             // NB: We can't really use XP visual styles to get TMT_TEXTCOLOR since
 414             //     it is not properly defined for combo boxes. Instead, they expect
 415             //     you to use DrawThemeText.
 416             //
 417             //    Here is, however, sample code how to get theme colours:
 418             //
 419             //    COLORREF cref;
 420             //    theme->GetThemeColor(hTheme,EP_EDITTEXT,ETS_NORMAL,TMT_TEXTCOLOR,&cref);
 421             //    dc.SetTextForeground( wxRGBToColour(cref) );
 422             if ( (m_iFlags & wxCC_FULL_BUTTON) && !(flags & wxCONTROL_ISSUBMENU) )
 423             {
 424                 // Vista style read-only combo
 425                 doDrawSelRect = false;
 426                 doDrawDottedEdge = true;
 427             }
 428             else
 429             {
 430                 dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHTTEXT) );
 431                 bgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_HIGHLIGHT);
 432             }
 433         }
 434         else
 435         {
 436             dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT) );
 437             bgCol = GetBackgroundColour();
 438             doDrawSelRect = false;
 439         }
 440     }
 441     else
 442     {
 443         dc.SetTextForeground( wxSystemSettings::GetColour(wxSYS_COLOUR_GRAYTEXT) );
 444         bgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE);
 445     }
 446
 447     dc.SetBrush(bgCol);
 448     if ( doDrawSelRect )
 449     {
 450         dc.SetPen(bgCol);
 451         dc.DrawRectangle(selRect);
 452     }
 453
 454     if ( doDrawDottedEdge )
 455         wxMSWDrawFocusRect(dc, selRect);
 456
 457     // Don't clip exactly to the selection rectangle so we can draw
 458     // to the non-selected area in front of it.
 459     wxRect clipRect(rect.x,rect.y,
 460                     (selRect.x+selRect.width)-rect.x-1,rect.height);
 461     dc.SetClippingRegion(clipRect);
 462 }
 463
 464 void wxComboCtrl::OnPaintEvent( wxPaintEvent& WXUNUSED(event) )
 465 {
 466     // TODO: Convert drawing in this function to Windows API Code
 467
 468     wxSize sz = GetClientSize();
 469     wxAutoBufferedPaintDC dc(this);
 470
 471     const wxRect& rectButton = m_btnArea;
 472     wxRect rectTextField = m_tcArea;
 473     wxColour bgCol = GetBackgroundColour();
 474
 475 #if wxUSE_UXTHEME
 476     const bool isEnabled = IsEnabled();
 477
 478     wxMSWDCImpl *impl = (wxMSWDCImpl*) dc.GetImpl();
 479     HDC hDc = GetHdcOf(*impl);
 480     HWND hWnd = GetHwndOf(this);
 481
 482     wxUxThemeEngine* theme = NULL;
 483     wxUxThemeHandle hTheme(this, L"COMBOBOX");
 484
 485     if ( hTheme )
 486         theme = wxUxThemeEngine::GetIfActive();
 487 #endif // wxUSE_UXTHEME
 488
 489     wxRect borderRect(0,0,sz.x,sz.y);
 490
 491     if ( m_iFlags & wxCC_IFLAG_BUTTON_OUTSIDE )
 492     {
 493         borderRect = m_tcArea;
 494         borderRect.Inflate(1);
 495     }
 496
 497     int drawButFlags = 0;
 498
 499 #if wxUSE_UXTHEME
 500     if ( hTheme )
 501     {
 502         const bool useVistaComboBox = ::wxGetWinVersion() >= wxWinVersion_Vista;
 503
 504         RECT rFull;
 505         wxCopyRectToRECT(borderRect, rFull);
 506
 507         RECT rButton;
 508         wxCopyRectToRECT(rectButton, rButton);
 509
 510         RECT rBorder;
 511         wxCopyRectToRECT(borderRect, rBorder);
 512
 513         bool isNonStdButton = (m_iFlags & wxCC_IFLAG_BUTTON_OUTSIDE) ||
 514                               (m_iFlags & wxCC_IFLAG_HAS_NONSTANDARD_BUTTON);
 515
 516         //
 517         // Get some states for themed drawing
 518         int butState;
 519
 520         if ( !isEnabled )
 521         {
 522             butState = CBXS_DISABLED;
 523         }
 524         // Vista will display the drop-button as depressed always
 525         // when the popup window is visilbe
 526         else if ( (m_btnState & wxCONTROL_PRESSED) ||
 527                   (useVistaComboBox && !IsPopupWindowState(Hidden)) )
 528         {
 529             butState = CBXS_PRESSED;
 530         }
 531         else if ( m_btnState & wxCONTROL_CURRENT )
 532         {
 533             butState = CBXS_HOT;
 534         }
 535         else
 536         {
 537             butState = CBXS_NORMAL;
 538         }
 539
 540         int comboBoxPart = 0;  // For XP, use the 'default' part
 541         RECT* rUseForBg = &rBorder;
 542
 543         bool drawFullButton = false;
 544         int bgState = butState;
 545         const bool isFocused = (FindFocus() == GetMainWindowOfCompositeControl()) ? true : false;
 546
 547         if ( useVistaComboBox )
 548         {
 549             // FIXME: Either SetBackgroundColour or GetBackgroundColour
 550             //        doesn't work under Vista, so here's a temporary
 551             //        workaround.
 552             bgCol = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW);
 553
 554             // Draw the entire control as a single button?
 555             if ( !isNonStdButton )
 556             {
 557                 if ( HasFlag(wxCB_READONLY) )
 558                     drawFullButton = true;
 559             }
 560
 561             if ( drawFullButton )
 562             {
 563                 comboBoxPart = CP_READONLY;
 564                 rUseForBg = &rFull;
 565
 566                 // It should be safe enough to update this flag here.
 567                 m_iFlags |= wxCC_FULL_BUTTON;
 568             }
 569             else
 570             {
 571                 comboBoxPart = CP_BORDER;
 572                 m_iFlags &= ~wxCC_FULL_BUTTON;
 573
 574                 if ( isFocused )
 575                     bgState = CBB_FOCUSED;
 576                 else
 577                     bgState = CBB_NORMAL;
 578             }
 579         }
 580
 581         //
 582         // Draw parent's background, if necessary
 583         RECT* rUseForTb = NULL;
 584
 585         if ( theme->IsThemeBackgroundPartiallyTransparent( hTheme, comboBoxPart, bgState ) )
 586             rUseForTb = &rFull;
 587         else if ( m_iFlags & wxCC_IFLAG_BUTTON_OUTSIDE )
 588             rUseForTb = &rButton;
 589
 590         if ( rUseForTb )
 591             theme->DrawThemeParentBackground( hWnd, hDc, rUseForTb );
 592
 593         //
 594         // Draw the control background (including the border)
 595         if ( m_widthCustomBorder > 0 )
 596         {
 597             theme->DrawThemeBackground( hTheme, hDc, comboBoxPart, bgState, rUseForBg, NULL );
 598         }
 599         else
 600         {
 601             // No border. We can't use theme, since it cannot be relied on
 602             // to deliver borderless drawing, even with DrawThemeBackgroundEx.
 603             dc.SetBrush(bgCol);
 604             dc.SetPen(bgCol);
 605             dc.DrawRectangle(borderRect);
 606         }
 607
 608         //
 609         // Draw the drop-button
 610         if ( !isNonStdButton )
 611         {
 612             drawButFlags = Button_BitmapOnly;
 613
 614             int butPart = CP_DROPDOWNBUTTON;
 615
 616             if ( useVistaComboBox )
 617             {
 618                 if ( drawFullButton )
 619                 {
 620                     // We need to alter the button style slightly before
 621                     // drawing the actual button (but it was good above
 622                     // when background etc was done).
 623                     if ( butState == CBXS_HOT || butState == CBXS_PRESSED )
 624                         butState = CBXS_NORMAL;
 625                 }
 626
 627                 if ( m_btnSide == wxRIGHT )
 628                     butPart = CP_DROPDOWNBUTTONRIGHT;
 629                 else
 630                     butPart = CP_DROPDOWNBUTTONLEFT;
 631
 632             }
 633             theme->DrawThemeBackground( hTheme, hDc, butPart, butState, &rButton, NULL );
 634         }
 635         else if ( useVistaComboBox &&
 636                   (m_iFlags & wxCC_IFLAG_BUTTON_OUTSIDE) )
 637         {
 638             // We'll do this, because DrawThemeParentBackground
 639             // doesn't seem to be reliable on Vista.
 640             drawButFlags |= Button_PaintBackground;
 641         }
 642     }
 643     else
 644 #endif
 645     {
 646         // Windows 2000 and earlier
 647         drawButFlags = Button_PaintBackground;
 648
 649         dc.SetBrush(bgCol);
 650         dc.SetPen(bgCol);
 651         dc.DrawRectangle(borderRect);
 652     }
 653
 654     // Button rendering (may only do the bitmap on button, depending on the flags)
 655     DrawButton( dc, rectButton, drawButFlags );
 656
 657     // Paint required portion of the custom image on the control
 658     if ( (!m_text || m_widthCustomPaint) )
 659     {
 660         wxASSERT( m_widthCustomPaint >= 0 );
 661
 662         // this is intentionally here to allow drawed rectangle's
 663         // right edge to be hidden
 664         if ( m_text )
 665             rectTextField.width = m_widthCustomPaint;
 666
 667         dc.SetFont( GetFont() );
 668
 669         dc.SetClippingRegion(rectTextField);
 670         if ( m_popupInterface )
 671             m_popupInterface->PaintComboControl(dc,rectTextField);
 672         else
 673             wxComboPopup::DefaultPaintComboControl(this,dc,rectTextField);
 674     }
 675 }
 676
 677 void wxComboCtrl::OnMouseEvent( wxMouseEvent& event )
 678 {
 679     int mx = event.m_x;
 680     bool isOnButtonArea = m_btnArea.Contains(mx,event.m_y);
 681     int handlerFlags = isOnButtonArea ? wxCC_MF_ON_BUTTON : 0;
 682
 683     if ( PreprocessMouseEvent(event,isOnButtonArea) )
 684         return;
 685
 686     if ( (m_windowStyle & (wxCC_SPECIAL_DCLICK|wxCB_READONLY)) == wxCB_READONLY )
 687     {
 688         // if no textctrl and no special double-click, then the entire control acts
 689         // as a button
 690         handlerFlags |= wxCC_MF_ON_BUTTON;
 691         if ( HandleButtonMouseEvent(event,handlerFlags) )
 692             return;
 693     }
 694     else
 695     {
 696         if ( isOnButtonArea || HasCapture() ||
 697              (m_widthCustomPaint && mx < (m_tcArea.x+m_widthCustomPaint)) )
 698         {
 699             handlerFlags |= wxCC_MF_ON_CLICK_AREA;
 700
 701             if ( HandleButtonMouseEvent(event,handlerFlags) )
 702                 return;
 703         }
 704         else if ( m_btnState )
 705         {
 706             // otherwise need to clear the hover status
 707             m_btnState = 0;
 708             RefreshRect(m_btnArea);
 709         }
 710     }
 711
 712     //
 713     // This will handle left_down and left_dclick events outside button in a Windows-like manner.
 714     // See header file for further information on this method.
 715     HandleNormalMouseEvent(event);
 716
 717 }
 718
 719 #if wxUSE_COMBOCTRL_POPUP_ANIMATION
 720 static wxUint32 GetUserPreferencesMask()
 721 {
 722     static wxUint32 userPreferencesMask = 0;
 723     static bool valueSet = false;
 724
 725     if ( valueSet )
 726         return userPreferencesMask;
 727
 728     wxRegKey* pKey = NULL;
 729     wxRegKey key1(wxRegKey::HKCU, wxT("Software\\Policies\\Microsoft\\Control Panel"));
 730     wxRegKey key2(wxRegKey::HKCU, wxT("Software\\Policies\\Microsoft\\Windows\\Control Panel"));
 731     wxRegKey key3(wxRegKey::HKCU, wxT("Control Panel\\Desktop"));
 732
 733     if ( key1.Exists() )
 734         pKey = &key1;
 735     else if ( key2.Exists() )
 736         pKey = &key2;
 737     else if ( key3.Exists() )
 738         pKey = &key3;
 739
 740     if ( pKey && pKey->Open(wxRegKey::Read) )
 741     {
 742         wxMemoryBuffer buf;
 743         if ( pKey->HasValue(wxT("UserPreferencesMask")) &&
 744              pKey->QueryValue(wxT("UserPreferencesMask"), buf) )
 745         {
 746             if ( buf.GetDataLen() >= 4 )
 747             {
 748                 wxUint32* p = (wxUint32*) buf.GetData();
 749                 userPreferencesMask = *p;
 750             }
 751         }
 752     }
 753
 754     valueSet = true;
 755
 756     return userPreferencesMask;
 757 }
 758 #endif
 759
 760 #if wxUSE_COMBOCTRL_POPUP_ANIMATION
 761 void wxComboCtrl::DoTimerEvent()
 762 {
 763     bool stopTimer = false;
 764
 765     wxWindow* popup = GetPopupControl()->GetControl();
 766
 767     // Popup was hidden before it was fully shown?
 768     if ( IsPopupWindowState(Hidden) )
 769     {
 770         stopTimer = true;
 771     }
 772     else
 773     {
 774         wxLongLong t = ::wxGetLocalTimeMillis();
 775         const wxRect& rect = m_animRect;
 776         wxWindow* win = GetPopupWindow();
 777
 778         int pos = (int) (t-m_animStart).GetLo();
 779         if ( pos < COMBOBOX_ANIMATION_DURATION )
 780         {
 781             int height = rect.height;
 782             //int h0 = rect.height;
 783             int h = (((pos*256)/COMBOBOX_ANIMATION_DURATION)*height)/256;
 784             int y = (height - h);
 785             if ( y < 0 )
 786                 y = 0;
 787
 788             if ( m_animFlags & ShowAbove )
 789             {
 790                 win->SetSize( rect.x, rect.y + height - h, rect.width, h );
 791             }
 792             else
 793             {
 794                 popup->Move( 0, -y );
 795                 win->SetSize( rect.x, rect.y, rect.width, h );
 796             }
 797         }
 798         else
 799         {
 800             stopTimer = true;
 801         }
 802     }
 803
 804     if ( stopTimer )
 805     {
 806         popup->Move( 0, 0 );
 807         m_animTimer.Stop();
 808         DoShowPopup( m_animRect, m_animFlags );
 809     }
 810 }
 811 #endif
 812
 813 #if wxUSE_COMBOCTRL_POPUP_ANIMATION
 814 bool wxComboCtrl::AnimateShow( const wxRect& rect, int flags )
 815 {
 816     if ( GetUserPreferencesMask() & wxMSW_DESKTOP_USERPREFERENCESMASK_COMBOBOXANIM )
 817     {
 818         m_animStart = ::wxGetLocalTimeMillis();
 819         m_animRect = rect;
 820         m_animFlags = flags;
 821
 822         wxWindow* win = GetPopupWindow();
 823         win->SetSize( rect.x, rect.y, rect.width, 0 );
 824         win->Show();
 825
 826         m_animTimer.SetOwner( this, wxID_ANY );
 827         m_animTimer.Start( COMBOBOX_ANIMATION_RESOLUTION, wxTIMER_CONTINUOUS );
 828
 829         DoTimerEvent();
 830
 831         return false;
 832     }
 833
 834     return true;
 835 }
 836 #endif
 837
 838 wxCoord wxComboCtrl::GetNativeTextIndent() const
 839 {
 840 #if wxUSE_UXTHEME
 841     if ( wxUxThemeEngine::GetIfActive() )
 842         return NATIVE_TEXT_INDENT_XP;
 843 #endif
 844     return NATIVE_TEXT_INDENT_CLASSIC;
 845 }
 846
 847 bool wxComboCtrl::IsKeyPopupToggle(const wxKeyEvent& event) const
 848 {
 849     const bool isPopupShown = IsPopupShown();
 850
 851     switch ( event.GetKeyCode() )
 852     {
 853         case WXK_F4:
 854             // F4 toggles the popup in the native comboboxes, so emulate them
 855             if ( !event.AltDown() )
 856                 return true;
 857             break;
 858
 859         case WXK_ESCAPE:
 860             if ( isPopupShown )
 861                 return true;
 862             break;
 863
 864         case WXK_DOWN:
 865         case WXK_UP:
 866             // On XP or with writable combo in Classic, arrows don't open the
 867             // popup but Alt-arrow does
 868             if ( event.AltDown() ||
 869                     ( !isPopupShown &&
 870                       HasFlag(wxCB_READONLY)
 871 #if wxUSE_UXTHEME
 872                       && !wxUxThemeEngine::GetIfActive()
 873 #endif
 874                     ) )
 875             {
 876                 return true;
 877             }
 878             break;
 879     }
 880
 881     return false;
 882 }
 883
 884 #endif // wxUSE_COMBOCTRL