src/stc/ScintillaWX.cpp

   1 ////////////////////////////////////////////////////////////////////////////
   2 // Name:        ScintillaWX.cxx
   3 // Purpose:     A wxWidgets implementation of Scintilla.  A class derived
   4 //              from ScintillaBase that uses the "wx platform" defined in
   5 //              PlatformWX.cxx  This class is one end of a bridge between
   6 //              the wx world and the Scintilla world.  It needs a peer
   7 //              object of type wxStyledTextCtrl to function.
   8 //
   9 // Author:      Robin Dunn
  10 //
  11 // Created:     13-Jan-2000
  12 // RCS-ID:      $Id$
  13 // Copyright:   (c) 2000 by Total Control Software
  14 // Licence:     wxWindows license
  15 /////////////////////////////////////////////////////////////////////////////
  16
  17 #define Point macPoint  // These names are also defined by some mac headers so
  18 #define Style macStyle  // change their names, and then undef before we need them
  19
  20 #include <wx/wx.h>
  21 #include <wx/textbuf.h>
  22 #include <wx/dataobj.h>
  23 #include <wx/clipbrd.h>
  24 #include <wx/dnd.h>
  25
  26 #undef Point
  27 #undef Style
  28
  29 #include "ScintillaWX.h"
  30 #include "ExternalLexer.h"
  31 #include "wx/stc/stc.h"
  32 #include "PlatWX.h"
  33
  34 #ifdef __WXMSW__
  35     // GetHwndOf()
  36     #include <wx/msw/private.h>
  37 #endif
  38
  39 //----------------------------------------------------------------------
  40 // Helper classes
  41
  42 class wxSTCTimer : public wxTimer {
  43 public:
  44     wxSTCTimer(ScintillaWX* swx) {
  45         this->swx = swx;
  46     }
  47
  48     void Notify() {
  49         swx->DoTick();
  50     }
  51
  52 private:
  53     ScintillaWX* swx;
  54 };
  55
  56
  57 #if wxUSE_DRAG_AND_DROP
  58 bool wxSTCDropTarget::OnDropText(wxCoord x, wxCoord y, const wxString& data) {
  59     return swx->DoDropText(x, y, data);
  60 }
  61
  62 wxDragResult  wxSTCDropTarget::OnEnter(wxCoord x, wxCoord y, wxDragResult def) {
  63     return swx->DoDragEnter(x, y, def);
  64 }
  65
  66 wxDragResult  wxSTCDropTarget::OnDragOver(wxCoord x, wxCoord y, wxDragResult def) {
  67     return swx->DoDragOver(x, y, def);
  68 }
  69
  70 void  wxSTCDropTarget::OnLeave() {
  71     swx->DoDragLeave();
  72 }
  73 #endif
  74
  75
  76 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
  77 #include <wx/popupwin.h>
  78 #define wxSTCCallTipBase wxPopupWindow
  79 #define param2  wxBORDER_NONE  // popup's 2nd param is flags
  80 #else
  81 #define wxSTCCallTipBase wxWindow
  82 #define param2 -1 // wxWindow's 2nd param is ID
  83 #endif
  84
  85 #include <wx/dcbuffer.h>
  86
  87 class wxSTCCallTip : public wxSTCCallTipBase {
  88 public:
  89     wxSTCCallTip(wxWindow* parent, CallTip* ct, ScintillaWX* swx)
  90         : wxSTCCallTipBase(parent, param2),
  91           m_ct(ct), m_swx(swx), m_cx(wxDefaultCoord), m_cy(wxDefaultCoord)
  92         {
  93         }
  94
  95     ~wxSTCCallTip() {
  96 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP && defined(__WXGTK__)
  97         wxRect rect = GetRect();
  98         rect.x = m_cx;
  99         rect.y = m_cy;
 100         GetParent()->Refresh(false, &rect);
 101 #endif
 102     }
 103
 104     bool AcceptsFocus() const { return false; }
 105
 106     void OnPaint(wxPaintEvent& WXUNUSED(evt)) {
 107         wxBufferedPaintDC dc(this);
 108         Surface* surfaceWindow = Surface::Allocate();
 109         surfaceWindow->Init(&dc, m_ct->wDraw.GetID());
 110         m_ct->PaintCT(surfaceWindow);
 111         surfaceWindow->Release();
 112         delete surfaceWindow;
 113     }
 114
 115     void OnFocus(wxFocusEvent& event) {
 116         GetParent()->SetFocus();
 117         event.Skip();
 118     }
 119
 120     void OnLeftDown(wxMouseEvent& event) {
 121         wxPoint pt = event.GetPosition();
 122         Point p(pt.x, pt.y);
 123         m_ct->MouseClick(p);
 124         m_swx->CallTipClick();
 125     }
 126
 127 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
 128     virtual void DoSetSize(int x, int y,
 129                            int width, int height,
 130                            int sizeFlags = wxSIZE_AUTO) {
 131         if (x != wxDefaultCoord) {
 132             m_cx = x;
 133             GetParent()->ClientToScreen(&x, NULL);
 134         }
 135         if (y != wxDefaultCoord) {
 136             m_cy = y;
 137             GetParent()->ClientToScreen(NULL, &y);
 138         }
 139         wxSTCCallTipBase::DoSetSize(x, y, width, height, sizeFlags);
 140     }
 141 #endif
 142
 143     wxPoint GetMyPosition() {
 144         return wxPoint(m_cx, m_cy);
 145     }
 146
 147 private:
 148     CallTip*      m_ct;
 149     ScintillaWX*  m_swx;
 150     int           m_cx, m_cy;
 151     DECLARE_EVENT_TABLE()
 152 };
 153
 154 BEGIN_EVENT_TABLE(wxSTCCallTip, wxSTCCallTipBase)
 155     EVT_PAINT(wxSTCCallTip::OnPaint)
 156     EVT_SET_FOCUS(wxSTCCallTip::OnFocus)
 157     EVT_LEFT_DOWN(wxSTCCallTip::OnLeftDown)
 158 END_EVENT_TABLE()
 159
 160
 161 //----------------------------------------------------------------------
 162
 163 static wxTextFileType wxConvertEOLMode(int scintillaMode)
 164 {
 165     wxTextFileType type;
 166
 167     switch (scintillaMode) {
 168         case wxSTC_EOL_CRLF:
 169             type = wxTextFileType_Dos;
 170             break;
 171
 172         case wxSTC_EOL_CR:
 173             type = wxTextFileType_Mac;
 174             break;
 175
 176         case wxSTC_EOL_LF:
 177             type = wxTextFileType_Unix;
 178             break;
 179
 180         default:
 181             type = wxTextBuffer::typeDefault;
 182             break;
 183     }
 184     return type;
 185 }
 186
 187
 188 //----------------------------------------------------------------------
 189 // Constructor/Destructor
 190
 191
 192 ScintillaWX::ScintillaWX(wxStyledTextCtrl* win) {
 193     capturedMouse = false;
 194     focusEvent = false;
 195     wMain = win;
 196     stc   = win;
 197     wheelRotation = 0;
 198     Initialise();
 199 #ifdef __WXMSW__
 200     sysCaretBitmap = 0;
 201     sysCaretWidth = 0;
 202     sysCaretHeight = 0;
 203 #endif
 204 }
 205
 206
 207 ScintillaWX::~ScintillaWX() {
 208     Finalise();
 209 }
 210
 211 //----------------------------------------------------------------------
 212 // base class virtuals
 213
 214
 215 void ScintillaWX::Initialise() {
 216     //ScintillaBase::Initialise();
 217 #if wxUSE_DRAG_AND_DROP
 218     dropTarget = new wxSTCDropTarget;
 219     dropTarget->SetScintilla(this);
 220     stc->SetDropTarget(dropTarget);
 221 #endif
 222 #ifdef __WXMAC__
 223     vs.extraFontFlag = false;  // UseAntiAliasing
 224 #else
 225     vs.extraFontFlag = true;   // UseAntiAliasing
 226 #endif
 227 }
 228
 229
 230 void ScintillaWX::Finalise() {
 231     ScintillaBase::Finalise();
 232     SetTicking(false);
 233     SetIdle(false);
 234     DestroySystemCaret();
 235 }
 236
 237
 238 void ScintillaWX::StartDrag() {
 239 #if wxUSE_DRAG_AND_DROP
 240     wxString dragText = stc2wx(drag.s, drag.len);
 241
 242     // Send an event to allow the drag text to be changed
 243     wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
 244     evt.SetEventObject(stc);
 245     evt.SetDragText(dragText);
 246     evt.SetDragAllowMove(true);
 247     evt.SetPosition(wxMin(stc->GetSelectionStart(),
 248                           stc->GetSelectionEnd()));
 249     stc->GetEventHandler()->ProcessEvent(evt);
 250     dragText = evt.GetDragText();
 251
 252     if (dragText.Length()) {
 253         wxDropSource        source(stc);
 254         wxTextDataObject    data(dragText);
 255         wxDragResult        result;
 256
 257         source.SetData(data);
 258         dropWentOutside = true;
 259         result = source.DoDragDrop(evt.GetDragAllowMove());
 260         if (result == wxDragMove && dropWentOutside)
 261             ClearSelection();
 262         inDragDrop = false;
 263         SetDragPosition(invalidPosition);
 264     }
 265 #endif
 266 }
 267
 268
 269 bool ScintillaWX::SetIdle(bool on) {
 270     if (idler.state != on) {
 271         // connect or disconnect the EVT_IDLE handler
 272         if (on)
 273             stc->Connect(wxID_ANY, wxEVT_IDLE,
 274                          (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 275         else
 276             stc->Disconnect(wxID_ANY, wxEVT_IDLE,
 277                             (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 278         idler.state = on;
 279     }
 280     return idler.state;
 281 }
 282
 283
 284 void ScintillaWX::SetTicking(bool on) {
 285     wxSTCTimer* steTimer;
 286     if (timer.ticking != on) {
 287         timer.ticking = on;
 288         if (timer.ticking) {
 289             steTimer = new wxSTCTimer(this);
 290             steTimer->Start(timer.tickSize);
 291             timer.tickerID = steTimer;
 292         } else {
 293             steTimer = (wxSTCTimer*)timer.tickerID;
 294             steTimer->Stop();
 295             delete steTimer;
 296             timer.tickerID = 0;
 297         }
 298     }
 299     timer.ticksToWait = caret.period;
 300 }
 301
 302
 303 void ScintillaWX::SetMouseCapture(bool on) {
 304     if (mouseDownCaptures) {
 305         if (on && !capturedMouse)
 306             stc->CaptureMouse();
 307         else if (!on && capturedMouse && stc->HasCapture())
 308             stc->ReleaseMouse();
 309         capturedMouse = on;
 310     }
 311 }
 312
 313
 314 bool ScintillaWX::HaveMouseCapture() {
 315     return capturedMouse;
 316 }
 317
 318
 319 void ScintillaWX::ScrollText(int linesToMove) {
 320     int dy = vs.lineHeight * (linesToMove);
 321     stc->ScrollWindow(0, dy);
 322     stc->Update();
 323 }
 324
 325 void ScintillaWX::SetVerticalScrollPos() {
 326     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 327         stc->SetScrollPos(wxVERTICAL, topLine);
 328     }
 329     else { // otherwise use the one that's been given to us
 330         stc->m_vScrollBar->SetThumbPosition(topLine);
 331     }
 332 }
 333
 334 void ScintillaWX::SetHorizontalScrollPos() {
 335     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 336         stc->SetScrollPos(wxHORIZONTAL, xOffset);
 337     }
 338     else { // otherwise use the one that's been given to us
 339         stc->m_hScrollBar->SetThumbPosition(xOffset);
 340     }
 341 }
 342
 343
 344 const int H_SCROLL_STEP = 20;
 345
 346 bool ScintillaWX::ModifyScrollBars(int nMax, int nPage) {
 347     bool modified = false;
 348
 349     int vertEnd = nMax;
 350     if (!verticalScrollBarVisible)
 351         vertEnd = 0;
 352
 353     // Check the vertical scrollbar
 354     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 355         int  sbMax    = stc->GetScrollRange(wxVERTICAL);
 356         int  sbThumb  = stc->GetScrollThumb(wxVERTICAL);
 357         int  sbPos    = stc->GetScrollPos(wxVERTICAL);
 358         if (sbMax != vertEnd || sbThumb != nPage) {
 359             stc->SetScrollbar(wxVERTICAL, sbPos, nPage, vertEnd+1);
 360             modified = true;
 361         }
 362     }
 363     else { // otherwise use the one that's been given to us
 364         int  sbMax    = stc->m_vScrollBar->GetRange();
 365         int  sbPage   = stc->m_vScrollBar->GetPageSize();
 366         int  sbPos    = stc->m_vScrollBar->GetThumbPosition();
 367         if (sbMax != vertEnd || sbPage != nPage) {
 368             stc->m_vScrollBar->SetScrollbar(sbPos, nPage, vertEnd+1, nPage);
 369             modified = true;
 370         }
 371     }
 372
 373
 374     // Check the horizontal scrollbar
 375     PRectangle rcText = GetTextRectangle();
 376     int horizEnd = scrollWidth;
 377     if (horizEnd < 0)
 378         horizEnd = 0;
 379     if (!horizontalScrollBarVisible || (wrapState != eWrapNone))
 380         horizEnd = 0;
 381     int pageWidth = rcText.Width();
 382
 383     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 384         int sbMax    = stc->GetScrollRange(wxHORIZONTAL);
 385         int sbThumb  = stc->GetScrollThumb(wxHORIZONTAL);
 386         int sbPos    = stc->GetScrollPos(wxHORIZONTAL);
 387         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 388             stc->SetScrollbar(wxHORIZONTAL, sbPos, pageWidth, horizEnd);
 389             modified = true;
 390             if (scrollWidth < pageWidth) {
 391                 HorizontalScrollTo(0);
 392             }
 393         }
 394     }
 395     else { // otherwise use the one that's been given to us
 396         int sbMax    = stc->m_hScrollBar->GetRange();
 397         int sbThumb  = stc->m_hScrollBar->GetPageSize();
 398         int sbPos    = stc->m_hScrollBar->GetThumbPosition();
 399         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 400             stc->m_hScrollBar->SetScrollbar(sbPos, pageWidth, horizEnd, pageWidth);
 401             modified = true;
 402             if (scrollWidth < pageWidth) {
 403                 HorizontalScrollTo(0);
 404             }
 405         }
 406     }
 407
 408     return modified;
 409 }
 410
 411
 412 void ScintillaWX::NotifyChange() {
 413     stc->NotifyChange();
 414 }
 415
 416
 417 void ScintillaWX::NotifyParent(SCNotification scn) {
 418     stc->NotifyParent(&scn);
 419 }
 420
 421
 422 // This method is overloaded from ScintillaBase in order to prevent the
 423 // AutoComplete window from being destroyed when it gets the focus.  There is
 424 // a side effect that the AutoComp will also not be destroyed when switching
 425 // to another window, but I think that is okay.
 426 void ScintillaWX::CancelModes() {
 427     if (! focusEvent)
 428         AutoCompleteCancel();
 429     ct.CallTipCancel();
 430     Editor::CancelModes();
 431 }
 432
 433
 434
 435 void ScintillaWX::Copy() {
 436     if (currentPos != anchor) {
 437         SelectionText st;
 438         CopySelectionRange(&st);
 439         CopyToClipboard(st);
 440     }
 441 }
 442
 443
 444 void ScintillaWX::Paste() {
 445     pdoc->BeginUndoAction();
 446     ClearSelection();
 447
 448     wxTextDataObject data;
 449     bool gotData = false;
 450
 451     if (wxTheClipboard->Open()) {
 452         wxTheClipboard->UsePrimarySelection(false);
 453         gotData = wxTheClipboard->GetData(data);
 454         wxTheClipboard->Close();
 455     }
 456     if (gotData) {
 457         wxString   text = wxTextBuffer::Translate(data.GetText(),
 458                                                   wxConvertEOLMode(pdoc->eolMode));
 459         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 460         int        len = strlen(buf);
 461         pdoc->InsertString(currentPos, buf, len);
 462         SetEmptySelection(currentPos + len);
 463     }
 464
 465     pdoc->EndUndoAction();
 466     NotifyChange();
 467     Redraw();
 468 }
 469
 470
 471 void ScintillaWX::CopyToClipboard(const SelectionText& st) {
 472     if (wxTheClipboard->Open()) {
 473         wxTheClipboard->UsePrimarySelection(false);
 474         wxString text = wxTextBuffer::Translate(stc2wx(st.s, st.len));
 475         wxTheClipboard->SetData(new wxTextDataObject(text));
 476         wxTheClipboard->Close();
 477     }
 478 }
 479
 480
 481 bool ScintillaWX::CanPaste() {
 482     bool canPaste = false;
 483     bool didOpen;
 484
 485     if (Editor::CanPaste()) {
 486         didOpen = !wxTheClipboard->IsOpened();
 487         if ( didOpen )
 488             wxTheClipboard->Open();
 489
 490         if (wxTheClipboard->IsOpened()) {
 491             wxTheClipboard->UsePrimarySelection(false);
 492             canPaste = wxTheClipboard->IsSupported(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT);
 493             if (didOpen)
 494                 wxTheClipboard->Close();
 495         }
 496     }
 497     return canPaste;
 498 }
 499
 500 void ScintillaWX::CreateCallTipWindow(PRectangle) {
 501     if (! ct.wCallTip.Created() ) {
 502         ct.wCallTip = new wxSTCCallTip(stc, &ct, this);
 503         ct.wDraw = ct.wCallTip;
 504     }
 505 }
 506
 507
 508 void ScintillaWX::AddToPopUp(const char *label, int cmd, bool enabled) {
 509     if (!label[0])
 510         ((wxMenu*)popup.GetID())->AppendSeparator();
 511     else
 512         ((wxMenu*)popup.GetID())->Append(cmd, wxGetTranslation(stc2wx(label)));
 513
 514     if (!enabled)
 515         ((wxMenu*)popup.GetID())->Enable(cmd, enabled);
 516 }
 517
 518
 519 // This is called by the Editor base class whenever something is selected
 520 void ScintillaWX::ClaimSelection() {
 521 #if 0
 522     // Until wxGTK is able to support using both the primary selection and the
 523     // clipboard at the same time I think it causes more problems than it is
 524     // worth to implement this method.  Selecting text should not clear the
 525     // clipboard.  --Robin
 526 #ifdef __WXGTK__
 527     // Put the selected text in the PRIMARY selection
 528     if (currentPos != anchor) {
 529         SelectionText st;
 530         CopySelectionRange(&st);
 531         if (wxTheClipboard->Open()) {
 532             wxTheClipboard->UsePrimarySelection(true);
 533             wxString text = stc2wx(st.s, st.len);
 534             wxTheClipboard->SetData(new wxTextDataObject(text));
 535             wxTheClipboard->UsePrimarySelection(false);
 536             wxTheClipboard->Close();
 537         }
 538     }
 539 #endif
 540 #endif
 541 }
 542
 543
 544 void ScintillaWX::UpdateSystemCaret() {
 545 #ifdef __WXMSW__
 546     if (hasFocus) {
 547         if (HasCaretSizeChanged()) {
 548             DestroySystemCaret();
 549             CreateSystemCaret();
 550         }
 551         Point pos = LocationFromPosition(currentPos);
 552         ::SetCaretPos(pos.x, pos.y);
 553     }
 554 #endif
 555 }
 556
 557
 558 bool ScintillaWX::HasCaretSizeChanged() {
 559 #ifdef __WXMSW__
 560     if (( (0 != vs.caretWidth) && (sysCaretWidth != vs.caretWidth) )
 561         || (0 != vs.lineHeight) && (sysCaretHeight != vs.lineHeight)) {
 562         return true;
 563     }
 564 #endif
 565     return false;
 566 }
 567
 568 bool ScintillaWX::CreateSystemCaret() {
 569 #ifdef __WXMSW__
 570     sysCaretWidth = vs.caretWidth;
 571     if (0 == sysCaretWidth) {
 572         sysCaretWidth = 1;
 573     }
 574     sysCaretHeight = vs.lineHeight;
 575     int bitmapSize = (((sysCaretWidth + 15) & ~15) >> 3) * sysCaretHeight;
 576     char *bits = new char[bitmapSize];
 577     memset(bits, 0, bitmapSize);
 578     sysCaretBitmap = ::CreateBitmap(sysCaretWidth, sysCaretHeight, 1,
 579                                     1, reinterpret_cast<BYTE *>(bits));
 580     delete [] bits;
 581     BOOL retval = ::CreateCaret(GetHwndOf(stc), sysCaretBitmap,
 582                                 sysCaretWidth, sysCaretHeight);
 583     ::ShowCaret(GetHwndOf(stc));
 584     return retval != 0;
 585 #else
 586     return false;
 587 #endif
 588 }
 589
 590 bool ScintillaWX::DestroySystemCaret() {
 591 #ifdef __WXMSW__
 592     ::HideCaret(GetHwndOf(stc));
 593     BOOL retval = ::DestroyCaret();
 594     if (sysCaretBitmap) {
 595         ::DeleteObject(sysCaretBitmap);
 596         sysCaretBitmap = 0;
 597     }
 598     return retval != 0;
 599 #else
 600     return false;
 601 #endif
 602 }
 603
 604
 605 //----------------------------------------------------------------------
 606
 607
 608 long ScintillaWX::DefWndProc(unsigned int /*iMessage*/, unsigned long /*wParam*/, long /*lParam*/) {
 609     return 0;
 610 }
 611
 612 long ScintillaWX::WndProc(unsigned int iMessage, unsigned long wParam, long lParam) {
 613       switch (iMessage) {
 614       case SCI_CALLTIPSHOW: {
 615           // NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
 616           // because of the little tweak that needs done below for wxGTK.
 617           // When updating new versions double check that this is still
 618           // needed, and that any new code there is copied here too.
 619           Point pt = LocationFromPosition(wParam);
 620           char* defn = reinterpret_cast<char *>(lParam);
 621           AutoCompleteCancel();
 622           pt.y += vs.lineHeight;
 623           PRectangle rc = ct.CallTipStart(currentPos, pt,
 624                                           defn,
 625                                           vs.styles[STYLE_DEFAULT].fontName,
 626                                           vs.styles[STYLE_DEFAULT].sizeZoomed,
 627                                           CodePage(),
 628                                           vs.styles[STYLE_DEFAULT].characterSet,
 629                                           wMain);
 630           // If the call-tip window would be out of the client
 631           // space, adjust so it displays above the text.
 632           PRectangle rcClient = GetClientRectangle();
 633           if (rc.bottom > rcClient.bottom) {
 634 #ifdef __WXGTK__
 635               int offset = int(vs.lineHeight * 1.25)  + rc.Height();
 636 #else
 637               int offset = vs.lineHeight + rc.Height();
 638 #endif
 639               rc.top -= offset;
 640               rc.bottom -= offset;
 641           }
 642           // Now display the window.
 643           CreateCallTipWindow(rc);
 644           ct.wCallTip.SetPositionRelative(rc, wMain);
 645           ct.wCallTip.Show();
 646           break;
 647       }
 648
 649 #ifdef SCI_LEXER
 650       case SCI_LOADLEXERLIBRARY:
 651             LexerManager::GetInstance()->Load((const char*)lParam);
 652             break;
 653 #endif
 654
 655       default:
 656           return ScintillaBase::WndProc(iMessage, wParam, lParam);
 657       }
 658       return 0;
 659 }
 660
 661
 662
 663 //----------------------------------------------------------------------
 664 // Event delegates
 665
 666 void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
 667
 668     paintState = painting;
 669     Surface* surfaceWindow = Surface::Allocate();
 670     surfaceWindow->Init(dc, wMain.GetID());
 671     rcPaint = PRectangleFromwxRect(rect);
 672     PRectangle rcClient = GetClientRectangle();
 673     paintingAllText = rcPaint.Contains(rcClient);
 674
 675     dc->BeginDrawing();
 676     ClipChildren(*dc, rcPaint);
 677     Paint(surfaceWindow, rcPaint);
 678
 679     delete surfaceWindow;
 680     if (paintState == paintAbandoned) {
 681         // Painting area was insufficient to cover new styling or brace
 682         // highlight positions
 683         FullPaint();
 684     }
 685     paintState = notPainting;
 686     dc->EndDrawing();
 687 }
 688
 689
 690 void ScintillaWX::DoHScroll(int type, int pos) {
 691     int xPos = xOffset;
 692     PRectangle rcText = GetTextRectangle();
 693     int pageWidth = rcText.Width() * 2 / 3;
 694     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 695         xPos -= H_SCROLL_STEP;
 696     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 697         xPos += H_SCROLL_STEP;
 698     else if (type == wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 699         xPos -= pageWidth;
 700     else if (type == wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN) {
 701         xPos += pageWidth;
 702         if (xPos > scrollWidth - rcText.Width()) {
 703             xPos = scrollWidth - rcText.Width();
 704         }
 705     }
 706     else if (type == wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 707         xPos = 0;
 708     else if (type == wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 709         xPos = scrollWidth;
 710     else if (type == wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 711         xPos = pos;
 712
 713     HorizontalScrollTo(xPos);
 714 }
 715
 716 void ScintillaWX::DoVScroll(int type, int pos) {
 717     int topLineNew = topLine;
 718     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 719         topLineNew -= 1;
 720     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 721         topLineNew += 1;
 722     else if (type ==  wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 723         topLineNew -= LinesToScroll();
 724     else if (type ==  wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN)
 725         topLineNew += LinesToScroll();
 726     else if (type ==  wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 727         topLineNew = 0;
 728     else if (type ==  wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 729         topLineNew = MaxScrollPos();
 730     else if (type ==   wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 731         topLineNew = pos;
 732
 733     ScrollTo(topLineNew);
 734 }
 735
 736 void ScintillaWX::DoMouseWheel(int rotation, int delta,
 737                                int linesPerAction, int ctrlDown,
 738                                bool isPageScroll ) {
 739     int topLineNew = topLine;
 740     int lines;
 741
 742     if (ctrlDown) {  // Zoom the fonts if Ctrl key down
 743         if (rotation < 0) {
 744             KeyCommand(SCI_ZOOMIN);
 745         }
 746         else {
 747             KeyCommand(SCI_ZOOMOUT);
 748         }
 749     }
 750     else { // otherwise just scroll the window
 751         if ( !delta )
 752             delta = 120;
 753         wheelRotation += rotation;
 754         lines = wheelRotation / delta;
 755         wheelRotation -= lines * delta;
 756         if (lines != 0) {
 757             if (isPageScroll)
 758                 lines = lines * LinesOnScreen();  // lines is either +1 or -1
 759             else
 760                 lines *= linesPerAction;
 761             topLineNew -= lines;
 762             ScrollTo(topLineNew);
 763         }
 764     }
 765 }
 766
 767
 768 void ScintillaWX::DoSize(int WXUNUSED(width), int WXUNUSED(height)) {
 769     ChangeSize();
 770 }
 771
 772 void ScintillaWX::DoLoseFocus(){
 773     focusEvent = true;
 774     SetFocusState(false);
 775     focusEvent = false;
 776     DestroySystemCaret();
 777 }
 778
 779 void ScintillaWX::DoGainFocus(){
 780     focusEvent = true;
 781     SetFocusState(true);
 782     focusEvent = false;
 783     DestroySystemCaret();
 784     CreateSystemCaret();
 785 }
 786
 787 void ScintillaWX::DoSysColourChange() {
 788     InvalidateStyleData();
 789 }
 790
 791 void ScintillaWX::DoLeftButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
 792     ButtonDown(pt, curTime, shift, ctrl, alt);
 793 }
 794
 795 void ScintillaWX::DoLeftButtonUp(Point pt, unsigned int curTime, bool ctrl) {
 796     ButtonUp(pt, curTime, ctrl);
 797 }
 798
 799 void ScintillaWX::DoLeftButtonMove(Point pt) {
 800     ButtonMove(pt);
 801 }
 802
 803 #ifdef __WXGTK__
 804 void ScintillaWX::DoMiddleButtonUp(Point pt) {
 805     // Set the current position to the mouse click point and
 806     // then paste in the PRIMARY selection, if any.  wxGTK only.
 807     int newPos = PositionFromLocation(pt);
 808     MovePositionTo(newPos, noSel, true);
 809
 810     pdoc->BeginUndoAction();
 811     wxTextDataObject data;
 812     bool gotData = false;
 813     if (wxTheClipboard->Open()) {
 814         wxTheClipboard->UsePrimarySelection(true);
 815         gotData = wxTheClipboard->GetData(data);
 816         wxTheClipboard->UsePrimarySelection(false);
 817         wxTheClipboard->Close();
 818     }
 819     if (gotData) {
 820         wxString   text = wxTextBuffer::Translate(data.GetText(),
 821                                                   wxConvertEOLMode(pdoc->eolMode));
 822         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 823         int        len = strlen(buf);
 824         pdoc->InsertString(currentPos, buf, len);
 825         SetEmptySelection(currentPos + len);
 826     }
 827     pdoc->EndUndoAction();
 828     NotifyChange();
 829     Redraw();
 830
 831     ShowCaretAtCurrentPosition();
 832     EnsureCaretVisible();
 833 }
 834 #else
 835 void ScintillaWX::DoMiddleButtonUp(Point WXUNUSED(pt)) {
 836 }
 837 #endif
 838
 839
 840 void ScintillaWX::DoAddChar(int key) {
 841 #if wxUSE_UNICODE
 842     wxChar wszChars[2];
 843     wszChars[0] = (wxChar)key;
 844     wszChars[1] = 0;
 845     wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(wszChars);
 846     AddCharUTF((char*)buf.data(), strlen(buf));
 847 #else
 848     AddChar((char)key);
 849 #endif
 850 }
 851
 852
 853 int  ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
 854 {
 855     int key = evt.GetKeyCode();
 856     bool shift = evt.ShiftDown(),
 857          ctrl  = evt.ControlDown(),
 858          alt   = evt.AltDown();
 859
 860     if (ctrl && key >= 1 && key <= 26)
 861         key += 'A' - 1;
 862
 863     switch (key) {
 864     case WXK_DOWN:              key = SCK_DOWN;     break;
 865     case WXK_UP:                key = SCK_UP;       break;
 866     case WXK_LEFT:              key = SCK_LEFT;     break;
 867     case WXK_RIGHT:             key = SCK_RIGHT;    break;
 868     case WXK_HOME:              key = SCK_HOME;     break;
 869     case WXK_END:               key = SCK_END;      break;
 870     case WXK_PAGEUP:            // fall through
 871     case WXK_PRIOR:             key = SCK_PRIOR;    break;
 872     case WXK_PAGEDOWN:          // fall through
 873     case WXK_NEXT:              key = SCK_NEXT;     break;
 874     case WXK_DELETE:            key = SCK_DELETE;   break;
 875     case WXK_INSERT:            key = SCK_INSERT;   break;
 876     case WXK_ESCAPE:            key = SCK_ESCAPE;   break;
 877     case WXK_BACK:              key = SCK_BACK;     break;
 878     case WXK_TAB:               key = SCK_TAB;      break;
 879     case WXK_NUMPAD_ENTER:      // fall through
 880     case WXK_RETURN:            key = SCK_RETURN;   break;
 881     case WXK_ADD:               // fall through
 882     case WXK_NUMPAD_ADD:        key = SCK_ADD;      break;
 883     case WXK_SUBTRACT:          // fall through
 884     case WXK_NUMPAD_SUBTRACT:   key = SCK_SUBTRACT; break;
 885     case WXK_DIVIDE:            // fall through
 886     case WXK_NUMPAD_DIVIDE:     key = SCK_DIVIDE;   break;
 887     case WXK_CONTROL:           key = 0; break;
 888     case WXK_ALT:               key = 0; break;
 889     case WXK_SHIFT:             key = 0; break;
 890     case WXK_MENU:              key = 0; break;
 891     }
 892
 893 #ifdef __WXMAC__
 894     if ( evt.MetaDown() ) {
 895         // check for a few common Mac Meta-key combos and remap them to Ctrl
 896         // for Scintilla
 897         switch ( key ) {
 898         case 'Z':       // Undo
 899         case 'X':       // Cut
 900         case 'C':       // Copy
 901         case 'V':       // Paste
 902         case 'A':       // Select All
 903             ctrl = true;
 904             break;
 905         }
 906     }
 907 #endif
 908
 909     int rv = KeyDown(key, shift, ctrl, alt, consumed);
 910
 911     if (key)
 912         return rv;
 913     else
 914         return 1;
 915 }
 916
 917
 918 void ScintillaWX::DoCommand(int ID) {
 919     Command(ID);
 920 }
 921
 922
 923 void ScintillaWX::DoContextMenu(Point pt) {
 924     if (displayPopupMenu)
 925         ContextMenu(pt);
 926 }
 927
 928 void ScintillaWX::DoOnListBox() {
 929     AutoCompleteCompleted();
 930 }
 931
 932
 933 void ScintillaWX::DoOnIdle(wxIdleEvent& evt) {
 934
 935     if ( Idle() )
 936         evt.RequestMore();
 937     else
 938         SetIdle(false);
 939 }
 940
 941 //----------------------------------------------------------------------
 942
 943 #if wxUSE_DRAG_AND_DROP
 944 bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
 945     SetDragPosition(invalidPosition);
 946
 947     wxString text = wxTextBuffer::Translate(data,
 948                                             wxConvertEOLMode(pdoc->eolMode));
 949
 950     // Send an event to allow the drag details to be changed
 951     wxStyledTextEvent evt(wxEVT_STC_DO_DROP, stc->GetId());
 952     evt.SetEventObject(stc);
 953     evt.SetDragResult(dragResult);
 954     evt.SetX(x);
 955     evt.SetY(y);
 956     evt.SetPosition(PositionFromLocation(Point(x,y)));
 957     evt.SetDragText(text);
 958     stc->GetEventHandler()->ProcessEvent(evt);
 959
 960     dragResult = evt.GetDragResult();
 961     if (dragResult == wxDragMove || dragResult == wxDragCopy) {
 962         DropAt(evt.GetPosition(),
 963                wx2stc(evt.GetDragText()),
 964                dragResult == wxDragMove,
 965                false); // TODO: rectangular?
 966         return true;
 967     }
 968     return false;
 969 }
 970
 971
 972 wxDragResult ScintillaWX::DoDragEnter(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResult def) {
 973     dragResult = def;
 974     return dragResult;
 975 }
 976
 977
 978 wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
 979     SetDragPosition(PositionFromLocation(Point(x, y)));
 980
 981     // Send an event to allow the drag result to be changed
 982     wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());
 983     evt.SetEventObject(stc);
 984     evt.SetDragResult(def);
 985     evt.SetX(x);
 986     evt.SetY(y);
 987     evt.SetPosition(PositionFromLocation(Point(x,y)));
 988     stc->GetEventHandler()->ProcessEvent(evt);
 989
 990     dragResult = evt.GetDragResult();
 991     return dragResult;
 992 }
 993
 994
 995 void ScintillaWX::DoDragLeave() {
 996     SetDragPosition(invalidPosition);
 997 }
 998 #endif
 999 //----------------------------------------------------------------------
1000
1001 // Force the whole window to be repainted
1002 void ScintillaWX::FullPaint() {
1003 #ifndef __WXMAC__
1004     stc->Refresh(false);
1005 #endif
1006     stc->Update();
1007 }
1008
1009
1010 void ScintillaWX::DoScrollToLine(int line) {
1011     ScrollTo(line);
1012 }
1013
1014
1015 void ScintillaWX::DoScrollToColumn(int column) {
1016     HorizontalScrollTo(column * vs.spaceWidth);
1017 }
1018
1019 #ifdef __WXGTK__
1020 void ScintillaWX::ClipChildren(wxDC& dc, PRectangle rect) {
1021     wxRegion rgn(wxRectFromPRectangle(rect));
1022     if (ac.Active()) {
1023         wxRect childRect = ((wxWindow*)ac.lb->GetID())->GetRect();
1024         rgn.Subtract(childRect);
1025     }
1026     if (ct.inCallTipMode) {
1027         wxSTCCallTip* tip = (wxSTCCallTip*)ct.wCallTip.GetID();
1028         wxRect childRect = tip->GetRect();
1029 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
1030         childRect.SetPosition(tip->GetMyPosition());
1031 #endif
1032         rgn.Subtract(childRect);
1033     }
1034
1035     dc.SetClippingRegion(rgn);
1036 }
1037 #else
1038 void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect)) {
1039 }
1040 #endif
1041
1042
1043 void ScintillaWX::SetUseAntiAliasing(bool useAA) {
1044     vs.extraFontFlag = useAA;
1045     InvalidateStyleRedraw();
1046 }
1047
1048 bool ScintillaWX::GetUseAntiAliasing() {
1049     return vs.extraFontFlag;
1050 }
1051
1052 //----------------------------------------------------------------------
1053 //----------------------------------------------------------------------