src/msw/spinctrl.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/spinctrl.cpp
   3 // Purpose:     wxSpinCtrl class implementation for Win32
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     22.07.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1999-2005 Vadim Zeitlin
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24     #pragma hdrstop
  25 #endif
  26
  27 #if wxUSE_SPINCTRL
  28
  29 #include "wx/spinctrl.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/hashmap.h"
  33     #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
  34     #include "wx/event.h"
  35     #include "wx/textctrl.h"
  36     #include "wx/wxcrtvararg.h"
  37 #endif
  38
  39 #include "wx/msw/private.h"
  40
  41 #if wxUSE_TOOLTIPS
  42     #include "wx/tooltip.h"
  43 #endif // wxUSE_TOOLTIPS
  44
  45 #include <limits.h>         // for INT_MIN
  46
  47 // ----------------------------------------------------------------------------
  48 // macros
  49 // ----------------------------------------------------------------------------
  50
  51 #if wxUSE_EXTENDED_RTTI
  52 WX_DEFINE_FLAGS( wxSpinCtrlStyle )
  53
  54 wxBEGIN_FLAGS( wxSpinCtrlStyle )
  55     // new style border flags, we put them first to
  56     // use them for streaming out
  57     wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  58     wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  59     wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  60     wxFLAGS_MEMBER(wxBORDER_RAISED)
  61     wxFLAGS_MEMBER(wxBORDER_STATIC)
  62     wxFLAGS_MEMBER(wxBORDER_NONE)
  63
  64     // old style border flags
  65     wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  66     wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  67     wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  68     wxFLAGS_MEMBER(wxRAISED_BORDER)
  69     wxFLAGS_MEMBER(wxSTATIC_BORDER)
  70     wxFLAGS_MEMBER(wxBORDER)
  71
  72     // standard window styles
  73     wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  74     wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  75     wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  76     wxFLAGS_MEMBER(wxWANTS_CHARS)
  77     wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  78     wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  79     wxFLAGS_MEMBER(wxVSCROLL)
  80     wxFLAGS_MEMBER(wxHSCROLL)
  81
  82     wxFLAGS_MEMBER(wxSP_HORIZONTAL)
  83     wxFLAGS_MEMBER(wxSP_VERTICAL)
  84     wxFLAGS_MEMBER(wxSP_ARROW_KEYS)
  85     wxFLAGS_MEMBER(wxSP_WRAP)
  86
  87 wxEND_FLAGS( wxSpinCtrlStyle )
  88
  89 IMPLEMENT_DYNAMIC_CLASS_XTI(wxSpinCtrl, wxControl,"wx/spinbut.h")
  90
  91 wxBEGIN_PROPERTIES_TABLE(wxSpinCtrl)
  92     wxEVENT_RANGE_PROPERTY( Spin , wxEVT_SCROLL_TOP , wxEVT_SCROLL_CHANGED , wxSpinEvent )
  93     wxEVENT_PROPERTY( Updated , wxEVT_COMMAND_SPINCTRL_UPDATED , wxCommandEvent )
  94     wxEVENT_PROPERTY( TextUpdated , wxEVT_COMMAND_TEXT_UPDATED , wxCommandEvent )
  95     wxEVENT_PROPERTY( TextEnter , wxEVT_COMMAND_TEXT_ENTER , wxCommandEvent )
  96
  97     wxPROPERTY( ValueString , wxString , SetValue , GetValue , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) ;
  98     wxPROPERTY( Value , int , SetValue, GetValue, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
  99     wxPROPERTY( Min , int , SetMin, GetMin, 0, 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
 100     wxPROPERTY( Max , int , SetMax, GetMax, 0 , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
 101     wxPROPERTY_FLAGS( WindowStyle , wxSpinCtrlStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
 102 /*
 103     TODO PROPERTIES
 104         style wxSP_ARROW_KEYS
 105 */
 106 wxEND_PROPERTIES_TABLE()
 107
 108 wxBEGIN_HANDLERS_TABLE(wxSpinCtrl)
 109 wxEND_HANDLERS_TABLE()
 110
 111 wxCONSTRUCTOR_6( wxSpinCtrl , wxWindow* , Parent , wxWindowID , Id , wxString , ValueString , wxPoint , Position , wxSize , Size , long , WindowStyle )
 112 #else
 113 IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
 114 #endif
 115
 116 BEGIN_EVENT_TABLE(wxSpinCtrl, wxSpinButton)
 117     EVT_CHAR(wxSpinCtrl::OnChar)
 118     EVT_SET_FOCUS(wxSpinCtrl::OnSetFocus)
 119     EVT_KILL_FOCUS(wxSpinCtrl::OnKillFocus)
 120 END_EVENT_TABLE()
 121
 122 #define GetBuddyHwnd()      (HWND)(m_hwndBuddy)
 123
 124 // ----------------------------------------------------------------------------
 125 // constants
 126 // ----------------------------------------------------------------------------
 127
 128 // the margin between the up-down control and its buddy (can be arbitrary,
 129 // choose what you like - or may be decide during run-time depending on the
 130 // font size?)
 131 static const int MARGIN_BETWEEN = 1;
 132
 133
 134 // ---------------------------------------------------------------------------
 135 // global vars
 136 // ---------------------------------------------------------------------------
 137
 138 namespace
 139 {
 140
 141 // Global hash used to find the spin control corresponding to the given buddy
 142 // text control HWND.
 143 WX_DECLARE_HASH_MAP(HWND, wxSpinCtrl *,
 144                     wxPointerHash, wxPointerEqual,
 145                     SpinForTextCtrl);
 146
 147 SpinForTextCtrl gs_spinForTextCtrl;
 148
 149 } // anonymous namespace
 150
 151 // ============================================================================
 152 // implementation
 153 // ============================================================================
 154
 155 // ----------------------------------------------------------------------------
 156 // wnd proc for the buddy text ctrl
 157 // ----------------------------------------------------------------------------
 158
 159 LRESULT APIENTRY _EXPORT wxBuddyTextWndProc(HWND hwnd,
 160                                             UINT message,
 161                                             WPARAM wParam,
 162                                             LPARAM lParam)
 163 {
 164     wxSpinCtrl * const spin = wxSpinCtrl::GetSpinForTextCtrl(hwnd);
 165
 166     // forward some messages (mostly the key and focus ones) to the spin ctrl
 167     switch ( message )
 168     {
 169         case WM_SETFOCUS:
 170             // if the focus comes from the spin control itself, don't set it
 171             // back to it -- we don't want to go into an infinite loop
 172             if ( (WXHWND)wParam == spin->GetHWND() )
 173                 break;
 174             //else: fall through
 175
 176         case WM_KILLFOCUS:
 177         case WM_CHAR:
 178         case WM_DEADCHAR:
 179         case WM_KEYUP:
 180         case WM_KEYDOWN:
 181 #ifdef WM_HELP
 182         // we need to forward WM_HELP too to ensure that the context help
 183         // associated with wxSpinCtrl is shown when the text control part of it
 184         // is clicked with the "?" cursor
 185         case WM_HELP:
 186 #endif
 187             spin->MSWWindowProc(message, wParam, lParam);
 188
 189             // The control may have been deleted at this point, so check.
 190             if ( !::IsWindow(hwnd) )
 191                 return 0;
 192             break;
 193
 194         case WM_GETDLGCODE:
 195             if ( spin->HasFlag(wxTE_PROCESS_ENTER) )
 196             {
 197                 long dlgCode = ::CallWindowProc
 198                                  (
 199                                     CASTWNDPROC spin->GetBuddyWndProc(),
 200                                     hwnd,
 201                                     message,
 202                                     wParam,
 203                                     lParam
 204                                  );
 205                 dlgCode |= DLGC_WANTMESSAGE;
 206                 return dlgCode;
 207             }
 208             break;
 209     }
 210
 211     return ::CallWindowProc(CASTWNDPROC spin->GetBuddyWndProc(),
 212                             hwnd, message, wParam, lParam);
 213 }
 214
 215 /* static */
 216 wxSpinCtrl *wxSpinCtrl::GetSpinForTextCtrl(WXHWND hwndBuddy)
 217 {
 218     const SpinForTextCtrl::const_iterator
 219         it = gs_spinForTextCtrl.find(hwndBuddy);
 220     if ( it == gs_spinForTextCtrl.end() )
 221         return NULL;
 222
 223     wxSpinCtrl * const spin = it->second;
 224
 225     // sanity check
 226     wxASSERT_MSG( spin->m_hwndBuddy == hwndBuddy,
 227                   wxT("wxSpinCtrl has incorrect buddy HWND!") );
 228
 229     return spin;
 230 }
 231
 232 // process a WM_COMMAND generated by the buddy text control
 233 bool wxSpinCtrl::ProcessTextCommand(WXWORD cmd, WXWORD WXUNUSED(id))
 234 {
 235     if ( (cmd == EN_CHANGE) && (!m_blockEvent ))
 236     {
 237         wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
 238         event.SetEventObject(this);
 239         wxString val = wxGetWindowText(m_hwndBuddy);
 240         event.SetString(val);
 241         event.SetInt(GetValue());
 242         return HandleWindowEvent(event);
 243     }
 244
 245     // not processed
 246     return false;
 247 }
 248
 249 void wxSpinCtrl::OnChar(wxKeyEvent& event)
 250 {
 251     switch ( event.GetKeyCode() )
 252     {
 253         case WXK_RETURN:
 254             {
 255                 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
 256                 InitCommandEvent(event);
 257                 wxString val = wxGetWindowText(m_hwndBuddy);
 258                 event.SetString(val);
 259                 event.SetInt(GetValue());
 260                 if ( HandleWindowEvent(event) )
 261                     return;
 262                 break;
 263             }
 264
 265         case WXK_TAB:
 266             // always produce navigation event - even if we process TAB
 267             // ourselves the fact that we got here means that the user code
 268             // decided to skip processing of this TAB - probably to let it
 269             // do its default job.
 270             {
 271                 wxNavigationKeyEvent eventNav;
 272                 eventNav.SetDirection(!event.ShiftDown());
 273                 eventNav.SetWindowChange(event.ControlDown());
 274                 eventNav.SetEventObject(this);
 275
 276                 if ( GetParent()->HandleWindowEvent(eventNav) )
 277                     return;
 278             }
 279             break;
 280     }
 281
 282     // no, we didn't process it
 283     event.Skip();
 284 }
 285
 286 void wxSpinCtrl::OnKillFocus(wxFocusEvent& event)
 287 {
 288     // ensure that a correct value is shown by the control
 289     NormalizeValue();
 290     event.Skip();
 291 }
 292
 293 void wxSpinCtrl::OnSetFocus(wxFocusEvent& event)
 294 {
 295     // when we get focus, give it to our buddy window as it needs it more than
 296     // we do
 297     ::SetFocus((HWND)m_hwndBuddy);
 298
 299     event.Skip();
 300 }
 301
 302 void wxSpinCtrl::NormalizeValue()
 303 {
 304     const int value = GetValue();
 305     const bool changed = value != m_oldValue;
 306
 307     // notice that we have to call SetValue() even if the value didn't change
 308     // because otherwise we could be left with empty buddy control when value
 309     // is 0, see comment in SetValue()
 310     SetValue(value);
 311
 312     if ( changed )
 313     {
 314         SendSpinUpdate(value);
 315     }
 316 }
 317
 318 // ----------------------------------------------------------------------------
 319 // construction
 320 // ----------------------------------------------------------------------------
 321
 322 bool wxSpinCtrl::Create(wxWindow *parent,
 323                         wxWindowID id,
 324                         const wxString& value,
 325                         const wxPoint& pos,
 326                         const wxSize& size,
 327                         long style,
 328                         int min, int max, int initial,
 329                         const wxString& name)
 330 {
 331     m_blockEvent = false;
 332
 333     // this should be in ctor/init function but I don't want to add one to 2.8
 334     // to avoid problems with default ctor which can be inlined in the user
 335     // code and so might not get this fix without recompilation
 336     m_oldValue = INT_MIN;
 337
 338     // before using DoGetBestSize(), have to set style to let the base class
 339     // know whether this is a horizontal or vertical control (we're always
 340     // vertical)
 341     style |= wxSP_VERTICAL;
 342
 343     if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
 344 #ifdef __WXWINCE__
 345         style |= wxBORDER_SIMPLE;
 346 #else
 347         style |= wxBORDER_SUNKEN;
 348 #endif
 349
 350     SetWindowStyle(style);
 351
 352     WXDWORD exStyle = 0;
 353     WXDWORD msStyle = MSWGetStyle(GetWindowStyle(), & exStyle) ;
 354
 355     // propagate text alignment style to text ctrl
 356     if ( style & wxALIGN_RIGHT )
 357         msStyle |= ES_RIGHT;
 358     else if ( style & wxALIGN_CENTER )
 359         msStyle |= ES_CENTER;
 360
 361     // calculate the sizes: the size given is the total size for both controls
 362     // and we need to fit them both in the given width (height is the same)
 363     wxSize sizeText(size), sizeBtn(size);
 364     sizeBtn.x = wxSpinButton::DoGetBestSize().x;
 365     if ( sizeText.x <= 0 )
 366     {
 367         // DEFAULT_ITEM_WIDTH is the default width for the text control
 368         sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;
 369     }
 370
 371     sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
 372     if ( sizeText.x <= 0 )
 373     {
 374         wxLogDebug(wxT("not enough space for wxSpinCtrl!"));
 375     }
 376
 377     wxPoint posBtn(pos);
 378     posBtn.x += sizeText.x + MARGIN_BETWEEN;
 379
 380     // we must create the text control before the spin button for the purpose
 381     // of the dialog navigation: if there is a static text just before the spin
 382     // control, activating it by Alt-letter should give focus to the text
 383     // control, not the spin and the dialog navigation code will give focus to
 384     // the next control (at Windows level), not the one after it
 385
 386     // create the text window
 387
 388     m_hwndBuddy = (WXHWND)::CreateWindowEx
 389                     (
 390                      exStyle,                // sunken border
 391                      wxT("EDIT"),             // window class
 392                      NULL,                   // no window title
 393                      msStyle,                // style (will be shown later)
 394                      pos.x, pos.y,           // position
 395                      0, 0,                   // size (will be set later)
 396                      GetHwndOf(parent),      // parent
 397                      (HMENU)-1,              // control id
 398                      wxGetInstance(),        // app instance
 399                      NULL                    // unused client data
 400                     );
 401
 402     if ( !m_hwndBuddy )
 403     {
 404         wxLogLastError(wxT("CreateWindow(buddy text window)"));
 405
 406         return false;
 407     }
 408
 409
 410     // create the spin button
 411     if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )
 412     {
 413         return false;
 414     }
 415
 416     wxSpinButtonBase::SetRange(min, max);
 417
 418     // subclass the text ctrl to be able to intercept some events
 419     gs_spinForTextCtrl[GetBuddyHwnd()] = this;
 420
 421     m_wndProcBuddy = (WXFARPROC)wxSetWindowProc(GetBuddyHwnd(),
 422                                                 wxBuddyTextWndProc);
 423
 424     // set up fonts and colours  (This is nomally done in MSWCreateControl)
 425     InheritAttributes();
 426     if (!m_hasFont)
 427         SetFont(GetDefaultAttributes().font);
 428
 429     // set the size of the text window - can do it only now, because we
 430     // couldn't call DoGetBestSize() before as font wasn't set
 431     if ( sizeText.y <= 0 )
 432     {
 433         int cx, cy;
 434         wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
 435
 436         sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
 437     }
 438
 439     SetInitialSize(size);
 440
 441     (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);
 442
 443     // associate the text window with the spin button
 444     (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);
 445
 446     SetValue(initial);
 447
 448     // Set the range in the native control
 449     SetRange(min, max);
 450
 451     if ( !value.empty() )
 452     {
 453         SetValue(value);
 454         m_oldValue = (int) wxAtol(value);
 455     }
 456     else
 457     {
 458         SetValue(wxString::Format(wxT("%d"), initial));
 459         m_oldValue = initial;
 460     }
 461
 462     return true;
 463 }
 464
 465 wxSpinCtrl::~wxSpinCtrl()
 466 {
 467     // destroy the buddy window because this pointer which wxBuddyTextWndProc
 468     // uses will not soon be valid any more
 469     ::DestroyWindow( GetBuddyHwnd() );
 470
 471     gs_spinForTextCtrl.erase(GetBuddyHwnd());
 472 }
 473
 474 // ----------------------------------------------------------------------------
 475 // wxTextCtrl-like methods
 476 // ----------------------------------------------------------------------------
 477
 478 void wxSpinCtrl::SetValue(const wxString& text)
 479 {
 480     if ( !::SetWindowText(GetBuddyHwnd(), text.c_str()) )
 481     {
 482         wxLogLastError(wxT("SetWindowText(buddy)"));
 483     }
 484 }
 485
 486 void  wxSpinCtrl::SetValue(int val)
 487 {
 488     m_blockEvent = true;
 489
 490     wxSpinButton::SetValue(val);
 491
 492     // normally setting the value of the spin button is enough as it updates
 493     // its buddy control automatically ...
 494     if ( wxGetWindowText(m_hwndBuddy).empty() )
 495     {
 496         // ... but sometimes it doesn't, notably when the value is 0 and the
 497         // text control is currently empty, the spin button seems to be happy
 498         // to leave it like this, while we really want to always show the
 499         // current value in the control, so do it manually
 500         ::SetWindowText(GetBuddyHwnd(),
 501                         wxString::Format(wxT("%d"), val).wx_str());
 502     }
 503
 504     m_oldValue = GetValue();
 505
 506     m_blockEvent = false;
 507 }
 508
 509 int wxSpinCtrl::GetValue() const
 510 {
 511     wxString val = wxGetWindowText(m_hwndBuddy);
 512
 513     long n;
 514     if ( (wxSscanf(val, wxT("%ld"), &n) != 1) )
 515         n = INT_MIN;
 516
 517     if ( n < m_min )
 518         n = m_min;
 519     if ( n > m_max )
 520         n = m_max;
 521
 522     return n;
 523 }
 524
 525 void wxSpinCtrl::SetSelection(long from, long to)
 526 {
 527     // if from and to are both -1, it means (in wxWidgets) that all text should
 528     // be selected - translate into Windows convention
 529     if ( (from == -1) && (to == -1) )
 530     {
 531         from = 0;
 532     }
 533
 534     ::SendMessage(GetBuddyHwnd(), EM_SETSEL, (WPARAM)from, (LPARAM)to);
 535 }
 536
 537 // ----------------------------------------------------------------------------
 538 // wxSpinButton methods
 539 // ----------------------------------------------------------------------------
 540
 541 void wxSpinCtrl::SetRange(int minVal, int maxVal)
 542 {
 543     wxSpinButton::SetRange(minVal, maxVal);
 544
 545     // this control is used for numeric entry so restrict the input to numeric
 546     // keys only -- but only if we don't need to be able to enter "-" in it as
 547     // otherwise this would become impossible
 548     const DWORD styleOld = ::GetWindowLong(GetBuddyHwnd(), GWL_STYLE);
 549     DWORD styleNew;
 550     if ( minVal < 0 )
 551         styleNew = styleOld & ~ES_NUMBER;
 552     else
 553         styleNew = styleOld | ES_NUMBER;
 554
 555     if ( styleNew != styleOld )
 556         ::SetWindowLong(GetBuddyHwnd(), GWL_STYLE, styleNew);
 557 }
 558
 559 // ----------------------------------------------------------------------------
 560 // forward some methods to subcontrols
 561 // ----------------------------------------------------------------------------
 562
 563 bool wxSpinCtrl::SetFont(const wxFont& font)
 564 {
 565     if ( !wxWindowBase::SetFont(font) )
 566     {
 567         // nothing to do
 568         return false;
 569     }
 570
 571     WXHANDLE hFont = GetFont().GetResourceHandle();
 572     (void)::SendMessage(GetBuddyHwnd(), WM_SETFONT, (WPARAM)hFont, TRUE);
 573
 574     return true;
 575 }
 576
 577 bool wxSpinCtrl::Show(bool show)
 578 {
 579     if ( !wxControl::Show(show) )
 580     {
 581         return false;
 582     }
 583
 584     ::ShowWindow(GetBuddyHwnd(), show ? SW_SHOW : SW_HIDE);
 585
 586     return true;
 587 }
 588
 589 bool wxSpinCtrl::Reparent(wxWindowBase *newParent)
 590 {
 591     // Reparenting both the updown control and its buddy does not seem to work:
 592     // they continue to be connected somehow, but visually there is no feedback
 593     // on the buddy edit control. To avoid this problem, we reparent the buddy
 594     // window normally, but we recreate the updown control and reassign its
 595     // buddy.
 596
 597     if ( !wxWindowBase::Reparent(newParent) )
 598         return false;
 599
 600     newParent->GetChildren().DeleteObject(this);
 601
 602     // preserve the old values
 603     const wxSize size = GetSize();
 604     int value = GetValue();
 605     const wxRect btnRect = wxRectFromRECT(wxGetWindowRect(GetHwnd()));
 606
 607     // destroy the old spin button
 608     UnsubclassWin();
 609     if ( !::DestroyWindow(GetHwnd()) )
 610     {
 611         wxLogLastError(wxT("DestroyWindow"));
 612     }
 613
 614     // create and initialize the new one
 615     if ( !wxSpinButton::Create(GetParent(), GetId(),
 616                                btnRect.GetPosition(), btnRect.GetSize(),
 617                                GetWindowStyle(), GetName()) )
 618         return false;
 619
 620     SetValue(value);
 621     SetRange(m_min, m_max);
 622     SetInitialSize(size);
 623
 624     // associate it with the buddy control again
 625     ::SetParent(GetBuddyHwnd(), GetHwndOf(GetParent()));
 626     (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)GetBuddyHwnd(), 0);
 627
 628     return true;
 629 }
 630
 631 bool wxSpinCtrl::Enable(bool enable)
 632 {
 633     if ( !wxControl::Enable(enable) )
 634     {
 635         return false;
 636     }
 637
 638     MSWEnableHWND(GetBuddyHwnd(), enable);
 639
 640     return true;
 641 }
 642
 643 void wxSpinCtrl::SetFocus()
 644 {
 645     ::SetFocus(GetBuddyHwnd());
 646 }
 647
 648 #if wxUSE_TOOLTIPS
 649
 650 void wxSpinCtrl::DoSetToolTip(wxToolTip *tip)
 651 {
 652     wxSpinButton::DoSetToolTip(tip);
 653
 654     if ( tip )
 655         tip->Add(m_hwndBuddy);
 656 }
 657
 658 #endif // wxUSE_TOOLTIPS
 659
 660 // ----------------------------------------------------------------------------
 661 // events processing and generation
 662 // ----------------------------------------------------------------------------
 663
 664 void wxSpinCtrl::SendSpinUpdate(int value)
 665 {
 666     wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, GetId());
 667     event.SetEventObject(this);
 668     event.SetInt(value);
 669
 670     (void)HandleWindowEvent(event);
 671
 672     m_oldValue = value;
 673 }
 674
 675 bool wxSpinCtrl::MSWOnScroll(int WXUNUSED(orientation), WXWORD wParam,
 676                                WXWORD pos, WXHWND control)
 677 {
 678     wxCHECK_MSG( control, false, wxT("scrolling what?") );
 679
 680     if ( wParam != SB_THUMBPOSITION )
 681     {
 682         // probable SB_ENDSCROLL - we don't react to it
 683         return false;
 684     }
 685
 686     int new_value = (short) pos;
 687     if (m_oldValue != new_value)
 688        SendSpinUpdate( new_value );
 689
 690     return TRUE;
 691 }
 692
 693 bool wxSpinCtrl::MSWOnNotify(int WXUNUSED(idCtrl), WXLPARAM lParam, WXLPARAM *result)
 694 {
 695     NM_UPDOWN *lpnmud = (NM_UPDOWN *)lParam;
 696
 697     if (lpnmud->hdr.hwndFrom != GetHwnd()) // make sure it is the right control
 698         return false;
 699
 700     *result = 0;  // never reject UP and DOWN events
 701
 702     return TRUE;
 703 }
 704
 705
 706 // ----------------------------------------------------------------------------
 707 // size calculations
 708 // ----------------------------------------------------------------------------
 709
 710 wxSize wxSpinCtrl::DoGetBestSize() const
 711 {
 712     wxSize sizeBtn = wxSpinButton::DoGetBestSize();
 713     sizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;
 714
 715     int y;
 716     wxGetCharSize(GetHWND(), NULL, &y, GetFont());
 717     y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(y);
 718
 719     // JACS: we should always use the height calculated
 720     // from above, because otherwise we'll get a spin control
 721     // that's too big. So never use the height calculated
 722     // from wxSpinButton::DoGetBestSize().
 723
 724     // if ( sizeBtn.y < y )
 725     {
 726         // make the text tall enough
 727         sizeBtn.y = y;
 728     }
 729
 730     return sizeBtn;
 731 }
 732
 733 void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
 734 {
 735     int widthBtn = wxSpinButton::DoGetBestSize().x;
 736     int widthText = width - widthBtn - MARGIN_BETWEEN;
 737     if ( widthText <= 0 )
 738     {
 739         wxLogDebug(wxT("not enough space for wxSpinCtrl!"));
 740     }
 741
 742     // 1) The buddy window
 743     DoMoveSibling(m_hwndBuddy, x, y, widthText, height);
 744
 745     // 2) The button window
 746     x += widthText + MARGIN_BETWEEN;
 747     wxSpinButton::DoMoveWindow(x, y, widthBtn, height);
 748 }
 749
 750 // get total size of the control
 751 void wxSpinCtrl::DoGetSize(int *x, int *y) const
 752 {
 753     RECT spinrect, textrect, ctrlrect;
 754     GetWindowRect(GetHwnd(), &spinrect);
 755     GetWindowRect(GetBuddyHwnd(), &textrect);
 756     UnionRect(&ctrlrect,&textrect, &spinrect);
 757
 758     if ( x )
 759         *x = ctrlrect.right - ctrlrect.left;
 760     if ( y )
 761         *y = ctrlrect.bottom - ctrlrect.top;
 762 }
 763
 764 void wxSpinCtrl::DoGetClientSize(int *x, int *y) const
 765 {
 766     RECT spinrect = wxGetClientRect(GetHwnd());
 767     RECT textrect = wxGetClientRect(GetBuddyHwnd());
 768     RECT ctrlrect;
 769     UnionRect(&ctrlrect,&textrect, &spinrect);
 770
 771     if ( x )
 772         *x = ctrlrect.right - ctrlrect.left;
 773     if ( y )
 774         *y = ctrlrect.bottom - ctrlrect.top;
 775 }
 776
 777 void wxSpinCtrl::DoGetPosition(int *x, int *y) const
 778 {
 779     // hack: pretend that our HWND is the text control just for a moment
 780     WXHWND hWnd = GetHWND();
 781     wxConstCast(this, wxSpinCtrl)->m_hWnd = m_hwndBuddy;
 782
 783     wxSpinButton::DoGetPosition(x, y);
 784
 785     wxConstCast(this, wxSpinCtrl)->m_hWnd = hWnd;
 786 }
 787
 788 #endif // wxUSE_SPINCTRL