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