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 #include "wx/wx.h"
  18 #include "wx/textbuf.h"
  19 #include "wx/dataobj.h"
  20 #include "wx/clipbrd.h"
  21 #include "wx/dnd.h"
  22
  23 #include "ScintillaWX.h"
  24 #include "ExternalLexer.h"
  25 #include "wx/stc/stc.h"
  26 #include "PlatWX.h"
  27
  28 #ifdef __WXMSW__
  29     // GetHwndOf()
  30     #include "wx/msw/private.h"
  31 #endif
  32
  33 //----------------------------------------------------------------------
  34 // Helper classes
  35
  36 class wxSTCTimer : public wxTimer {
  37 public:
  38     wxSTCTimer(ScintillaWX* swx) {
  39         this->swx = swx;
  40     }
  41
  42     void Notify() {
  43         swx->DoTick();
  44     }
  45
  46 private:
  47     ScintillaWX* swx;
  48 };
  49
  50
  51 #if wxUSE_DRAG_AND_DROP
  52 class wxStartDragTimer : public wxTimer {
  53 public:
  54     wxStartDragTimer(ScintillaWX* swx) {
  55         this->swx = swx;
  56     }
  57
  58     void Notify() {
  59         swx->DoStartDrag();
  60     }
  61
  62 private:
  63     ScintillaWX* swx;
  64 };
  65
  66
  67 bool wxSTCDropTarget::OnDropText(wxCoord x, wxCoord y, const wxString& data) {
  68     return swx->DoDropText(x, y, data);
  69 }
  70
  71 wxDragResult  wxSTCDropTarget::OnEnter(wxCoord x, wxCoord y, wxDragResult def) {
  72     return swx->DoDragEnter(x, y, def);
  73 }
  74
  75 wxDragResult  wxSTCDropTarget::OnDragOver(wxCoord x, wxCoord y, wxDragResult def) {
  76     return swx->DoDragOver(x, y, def);
  77 }
  78
  79 void  wxSTCDropTarget::OnLeave() {
  80     swx->DoDragLeave();
  81 }
  82 #endif // wxUSE_DRAG_AND_DROP
  83
  84
  85 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
  86 #include <wx/popupwin.h>
  87 #define wxSTCCallTipBase wxPopupWindow
  88 #define param2  wxBORDER_NONE  // popup's 2nd param is flags
  89 #else
  90 #define wxSTCCallTipBase wxWindow
  91 #define param2 -1 // wxWindow's 2nd param is ID
  92 #endif
  93
  94 #include <wx/dcbuffer.h>
  95
  96 class wxSTCCallTip : public wxSTCCallTipBase {
  97 public:
  98     wxSTCCallTip(wxWindow* parent, CallTip* ct, ScintillaWX* swx)
  99         : wxSTCCallTipBase(parent, param2),
 100           m_ct(ct), m_swx(swx), m_cx(wxDefaultCoord), m_cy(wxDefaultCoord)
 101         {
 102         }
 103
 104     ~wxSTCCallTip() {
 105 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP && defined(__WXGTK__)
 106         wxRect rect = GetRect();
 107         rect.x = m_cx;
 108         rect.y = m_cy;
 109         GetParent()->Refresh(false, &rect);
 110 #endif
 111     }
 112
 113     bool AcceptsFocus() const { return false; }
 114
 115     void OnPaint(wxPaintEvent& WXUNUSED(evt)) {
 116         wxBufferedPaintDC dc(this);
 117         Surface* surfaceWindow = Surface::Allocate();
 118         surfaceWindow->Init(&dc, m_ct->wDraw.GetID());
 119         m_ct->PaintCT(surfaceWindow);
 120         surfaceWindow->Release();
 121         delete surfaceWindow;
 122     }
 123
 124     void OnFocus(wxFocusEvent& event) {
 125         GetParent()->SetFocus();
 126         event.Skip();
 127     }
 128
 129     void OnLeftDown(wxMouseEvent& event) {
 130         wxPoint pt = event.GetPosition();
 131         Point p(pt.x, pt.y);
 132         m_ct->MouseClick(p);
 133         m_swx->CallTipClick();
 134     }
 135
 136 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
 137     virtual void DoSetSize(int x, int y,
 138                            int width, int height,
 139                            int sizeFlags = wxSIZE_AUTO) {
 140         if (x != wxDefaultCoord) {
 141             m_cx = x;
 142             GetParent()->ClientToScreen(&x, NULL);
 143         }
 144         if (y != wxDefaultCoord) {
 145             m_cy = y;
 146             GetParent()->ClientToScreen(NULL, &y);
 147         }
 148         wxSTCCallTipBase::DoSetSize(x, y, width, height, sizeFlags);
 149     }
 150 #endif
 151
 152     wxPoint GetMyPosition() {
 153         return wxPoint(m_cx, m_cy);
 154     }
 155
 156 private:
 157     CallTip*      m_ct;
 158     ScintillaWX*  m_swx;
 159     int           m_cx, m_cy;
 160     DECLARE_EVENT_TABLE()
 161 };
 162
 163 BEGIN_EVENT_TABLE(wxSTCCallTip, wxSTCCallTipBase)
 164     EVT_PAINT(wxSTCCallTip::OnPaint)
 165     EVT_SET_FOCUS(wxSTCCallTip::OnFocus)
 166     EVT_LEFT_DOWN(wxSTCCallTip::OnLeftDown)
 167 END_EVENT_TABLE()
 168
 169
 170 //----------------------------------------------------------------------
 171
 172 #if wxUSE_DATAOBJ
 173 static wxTextFileType wxConvertEOLMode(int scintillaMode)
 174 {
 175     wxTextFileType type;
 176
 177     switch (scintillaMode) {
 178         case wxSTC_EOL_CRLF:
 179             type = wxTextFileType_Dos;
 180             break;
 181
 182         case wxSTC_EOL_CR:
 183             type = wxTextFileType_Mac;
 184             break;
 185
 186         case wxSTC_EOL_LF:
 187             type = wxTextFileType_Unix;
 188             break;
 189
 190         default:
 191             type = wxTextBuffer::typeDefault;
 192             break;
 193     }
 194     return type;
 195 }
 196 #endif // wxUSE_DATAOBJ
 197
 198
 199 //----------------------------------------------------------------------
 200 // Constructor/Destructor
 201
 202
 203 ScintillaWX::ScintillaWX(wxStyledTextCtrl* win) {
 204     capturedMouse = false;
 205     focusEvent = false;
 206     wMain = win;
 207     stc   = win;
 208     wheelRotation = 0;
 209     Initialise();
 210 #ifdef __WXMSW__
 211     sysCaretBitmap = 0;
 212     sysCaretWidth = 0;
 213     sysCaretHeight = 0;
 214 #endif
 215 #if wxUSE_DRAG_AND_DROP
 216     startDragTimer = new wxStartDragTimer(this);
 217 #endif // wxUSE_DRAG_AND_DROP
 218 }
 219
 220
 221 ScintillaWX::~ScintillaWX() {
 222 #if wxUSE_DRAG_AND_DROP
 223     delete startDragTimer;
 224 #endif // wxUSE_DRAG_AND_DROP
 225     Finalise();
 226 }
 227
 228 //----------------------------------------------------------------------
 229 // base class virtuals
 230
 231
 232 void ScintillaWX::Initialise() {
 233     //ScintillaBase::Initialise();
 234 #if wxUSE_DRAG_AND_DROP
 235     dropTarget = new wxSTCDropTarget;
 236     dropTarget->SetScintilla(this);
 237     stc->SetDropTarget(dropTarget);
 238 #endif // wxUSE_DRAG_AND_DROP
 239 #ifdef __WXMAC__
 240     vs.extraFontFlag = false;  // UseAntiAliasing
 241 #else
 242     vs.extraFontFlag = true;   // UseAntiAliasing
 243 #endif
 244 }
 245
 246
 247 void ScintillaWX::Finalise() {
 248     ScintillaBase::Finalise();
 249     SetTicking(false);
 250     SetIdle(false);
 251     DestroySystemCaret();
 252 }
 253
 254
 255 void ScintillaWX::StartDrag() {
 256 #if wxUSE_DRAG_AND_DROP
 257     // We defer the starting of the DnD, otherwise the LeftUp of a normal
 258     // click could be lost and the STC will think it is doing a DnD when the
 259     // user just wanted a normal click.
 260     startDragTimer->Start(200, true);
 261 #endif // wxUSE_DRAG_AND_DROP
 262 }
 263
 264 void ScintillaWX::DoStartDrag() {
 265 #if wxUSE_DRAG_AND_DROP
 266     wxString dragText = stc2wx(drag.s, drag.len);
 267
 268     // Send an event to allow the drag text to be changed
 269     wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
 270     evt.SetEventObject(stc);
 271     evt.SetDragText(dragText);
 272     evt.SetDragAllowMove(true);
 273     evt.SetPosition(wxMin(stc->GetSelectionStart(),
 274                           stc->GetSelectionEnd()));
 275     stc->GetEventHandler()->ProcessEvent(evt);
 276     dragText = evt.GetDragText();
 277
 278     if (dragText.length()) {
 279         wxDropSource        source(stc);
 280         wxTextDataObject    data(dragText);
 281         wxDragResult        result;
 282
 283         source.SetData(data);
 284         dropWentOutside = true;
 285         result = source.DoDragDrop(evt.GetDragAllowMove());
 286         if (result == wxDragMove && dropWentOutside)
 287             ClearSelection();
 288         inDragDrop = false;
 289         SetDragPosition(invalidPosition);
 290     }
 291 #endif // wxUSE_DRAG_AND_DROP
 292 }
 293
 294
 295 bool ScintillaWX::SetIdle(bool on) {
 296     if (idler.state != on) {
 297         // connect or disconnect the EVT_IDLE handler
 298         if (on)
 299             stc->Connect(wxID_ANY, wxEVT_IDLE,
 300                          (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 301         else
 302             stc->Disconnect(wxID_ANY, wxEVT_IDLE,
 303                             (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 304         idler.state = on;
 305     }
 306     return idler.state;
 307 }
 308
 309
 310 void ScintillaWX::SetTicking(bool on) {
 311     wxSTCTimer* steTimer;
 312     if (timer.ticking != on) {
 313         timer.ticking = on;
 314         if (timer.ticking) {
 315             steTimer = new wxSTCTimer(this);
 316             steTimer->Start(timer.tickSize);
 317             timer.tickerID = steTimer;
 318         } else {
 319             steTimer = (wxSTCTimer*)timer.tickerID;
 320             steTimer->Stop();
 321             delete steTimer;
 322             timer.tickerID = 0;
 323         }
 324     }
 325     timer.ticksToWait = caret.period;
 326 }
 327
 328
 329 void ScintillaWX::SetMouseCapture(bool on) {
 330     if (mouseDownCaptures) {
 331         if (on && !capturedMouse)
 332             stc->CaptureMouse();
 333         else if (!on && capturedMouse && stc->HasCapture())
 334             stc->ReleaseMouse();
 335         capturedMouse = on;
 336     }
 337 }
 338
 339
 340 bool ScintillaWX::HaveMouseCapture() {
 341     return capturedMouse;
 342 }
 343
 344
 345 void ScintillaWX::ScrollText(int linesToMove) {
 346     int dy = vs.lineHeight * (linesToMove);
 347     stc->ScrollWindow(0, dy);
 348     stc->Update();
 349 }
 350
 351 void ScintillaWX::SetVerticalScrollPos() {
 352     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 353         stc->SetScrollPos(wxVERTICAL, topLine);
 354     }
 355     else { // otherwise use the one that's been given to us
 356         stc->m_vScrollBar->SetThumbPosition(topLine);
 357     }
 358 }
 359
 360 void ScintillaWX::SetHorizontalScrollPos() {
 361     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 362         stc->SetScrollPos(wxHORIZONTAL, xOffset);
 363     }
 364     else { // otherwise use the one that's been given to us
 365         stc->m_hScrollBar->SetThumbPosition(xOffset);
 366     }
 367 }
 368
 369
 370 const int H_SCROLL_STEP = 20;
 371
 372 bool ScintillaWX::ModifyScrollBars(int nMax, int nPage) {
 373     bool modified = false;
 374
 375     int vertEnd = nMax;
 376     if (!verticalScrollBarVisible)
 377         vertEnd = 0;
 378
 379     // Check the vertical scrollbar
 380     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 381         int  sbMax    = stc->GetScrollRange(wxVERTICAL);
 382         int  sbThumb  = stc->GetScrollThumb(wxVERTICAL);
 383         int  sbPos    = stc->GetScrollPos(wxVERTICAL);
 384         if (sbMax != vertEnd || sbThumb != nPage) {
 385             stc->SetScrollbar(wxVERTICAL, sbPos, nPage, vertEnd+1);
 386             modified = true;
 387         }
 388     }
 389     else { // otherwise use the one that's been given to us
 390         int  sbMax    = stc->m_vScrollBar->GetRange();
 391         int  sbPage   = stc->m_vScrollBar->GetPageSize();
 392         int  sbPos    = stc->m_vScrollBar->GetThumbPosition();
 393         if (sbMax != vertEnd || sbPage != nPage) {
 394             stc->m_vScrollBar->SetScrollbar(sbPos, nPage, vertEnd+1, nPage);
 395             modified = true;
 396         }
 397     }
 398
 399
 400     // Check the horizontal scrollbar
 401     PRectangle rcText = GetTextRectangle();
 402     int horizEnd = scrollWidth;
 403     if (horizEnd < 0)
 404         horizEnd = 0;
 405     if (!horizontalScrollBarVisible || (wrapState != eWrapNone))
 406         horizEnd = 0;
 407     int pageWidth = rcText.Width();
 408
 409     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 410         int sbMax    = stc->GetScrollRange(wxHORIZONTAL);
 411         int sbThumb  = stc->GetScrollThumb(wxHORIZONTAL);
 412         int sbPos    = stc->GetScrollPos(wxHORIZONTAL);
 413         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 414             stc->SetScrollbar(wxHORIZONTAL, sbPos, pageWidth, horizEnd);
 415             modified = true;
 416             if (scrollWidth < pageWidth) {
 417                 HorizontalScrollTo(0);
 418             }
 419         }
 420     }
 421     else { // otherwise use the one that's been given to us
 422         int sbMax    = stc->m_hScrollBar->GetRange();
 423         int sbThumb  = stc->m_hScrollBar->GetPageSize();
 424         int sbPos    = stc->m_hScrollBar->GetThumbPosition();
 425         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 426             stc->m_hScrollBar->SetScrollbar(sbPos, pageWidth, horizEnd, pageWidth);
 427             modified = true;
 428             if (scrollWidth < pageWidth) {
 429                 HorizontalScrollTo(0);
 430             }
 431         }
 432     }
 433
 434     return modified;
 435 }
 436
 437
 438 void ScintillaWX::NotifyChange() {
 439     stc->NotifyChange();
 440 }
 441
 442
 443 void ScintillaWX::NotifyParent(SCNotification scn) {
 444     stc->NotifyParent(&scn);
 445 }
 446
 447
 448 // This method is overloaded from ScintillaBase in order to prevent the
 449 // AutoComplete window from being destroyed when it gets the focus.  There is
 450 // a side effect that the AutoComp will also not be destroyed when switching
 451 // to another window, but I think that is okay.
 452 void ScintillaWX::CancelModes() {
 453     if (! focusEvent)
 454         AutoCompleteCancel();
 455     ct.CallTipCancel();
 456     Editor::CancelModes();
 457 }
 458
 459
 460
 461 void ScintillaWX::Copy() {
 462     if (currentPos != anchor) {
 463         SelectionText st;
 464         CopySelectionRange(&st);
 465         CopyToClipboard(st);
 466     }
 467 }
 468
 469
 470 void ScintillaWX::Paste() {
 471     pdoc->BeginUndoAction();
 472     ClearSelection();
 473
 474 #if wxUSE_DATAOBJ
 475     wxTextDataObject data;
 476     bool gotData = false;
 477
 478     if (wxTheClipboard->Open()) {
 479         wxTheClipboard->UsePrimarySelection(false);
 480         gotData = wxTheClipboard->GetData(data);
 481         wxTheClipboard->Close();
 482     }
 483     if (gotData) {
 484         wxString   text = wxTextBuffer::Translate(data.GetText(),
 485                                                   wxConvertEOLMode(pdoc->eolMode));
 486   data.SetText(wxEmptyString); // free the data object content
 487         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 488   text = wxEmptyString; // free text
 489
 490         int        len = strlen(buf);
 491         pdoc->InsertString(currentPos, buf, len);
 492         SetEmptySelection(currentPos + len);
 493     }
 494 #endif // wxUSE_DATAOBJ
 495
 496     pdoc->EndUndoAction();
 497     NotifyChange();
 498     Redraw();
 499 }
 500
 501
 502 void ScintillaWX::CopyToClipboard(const SelectionText& st) {
 503 #if wxUSE_CLIPBOARD
 504     if (wxTheClipboard->Open()) {
 505         wxTheClipboard->UsePrimarySelection(false);
 506         wxString text = wxTextBuffer::Translate(stc2wx(st.s, st.len-1));
 507         wxTheClipboard->SetData(new wxTextDataObject(text));
 508         wxTheClipboard->Close();
 509     }
 510 #else
 511     wxUnusedVar(st);
 512 #endif // wxUSE_CLIPBOARD
 513 }
 514
 515
 516 bool ScintillaWX::CanPaste() {
 517 #if wxUSE_CLIPBOARD
 518     bool canPaste = false;
 519     bool didOpen;
 520
 521     if (Editor::CanPaste()) {
 522         didOpen = !wxTheClipboard->IsOpened();
 523         if ( didOpen )
 524             wxTheClipboard->Open();
 525
 526         if (wxTheClipboard->IsOpened()) {
 527             wxTheClipboard->UsePrimarySelection(false);
 528             canPaste = wxTheClipboard->IsSupported(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT);
 529             if (didOpen)
 530                 wxTheClipboard->Close();
 531         }
 532     }
 533     return canPaste;
 534 #else
 535     return false;
 536 #endif // wxUSE_CLIPBOARD
 537 }
 538
 539 void ScintillaWX::CreateCallTipWindow(PRectangle) {
 540     if (! ct.wCallTip.Created() ) {
 541         ct.wCallTip = new wxSTCCallTip(stc, &ct, this);
 542         ct.wDraw = ct.wCallTip;
 543     }
 544 }
 545
 546
 547 void ScintillaWX::AddToPopUp(const char *label, int cmd, bool enabled) {
 548     if (!label[0])
 549         ((wxMenu*)popup.GetID())->AppendSeparator();
 550     else
 551         ((wxMenu*)popup.GetID())->Append(cmd, wxGetTranslation(stc2wx(label)));
 552
 553     if (!enabled)
 554         ((wxMenu*)popup.GetID())->Enable(cmd, enabled);
 555 }
 556
 557
 558 // This is called by the Editor base class whenever something is selected
 559 void ScintillaWX::ClaimSelection() {
 560 #if 0
 561     // Until wxGTK is able to support using both the primary selection and the
 562     // clipboard at the same time I think it causes more problems than it is
 563     // worth to implement this method.  Selecting text should not clear the
 564     // clipboard.  --Robin
 565 #ifdef __WXGTK__
 566     // Put the selected text in the PRIMARY selection
 567     if (currentPos != anchor) {
 568         SelectionText st;
 569         CopySelectionRange(&st);
 570         if (wxTheClipboard->Open()) {
 571             wxTheClipboard->UsePrimarySelection(true);
 572             wxString text = stc2wx(st.s, st.len);
 573             wxTheClipboard->SetData(new wxTextDataObject(text));
 574             wxTheClipboard->UsePrimarySelection(false);
 575             wxTheClipboard->Close();
 576         }
 577     }
 578 #endif
 579 #endif
 580 }
 581
 582
 583 void ScintillaWX::UpdateSystemCaret() {
 584 #ifdef __WXMSW__
 585     if (hasFocus) {
 586         if (HasCaretSizeChanged()) {
 587             DestroySystemCaret();
 588             CreateSystemCaret();
 589         }
 590         Point pos = LocationFromPosition(currentPos);
 591         ::SetCaretPos(pos.x, pos.y);
 592     }
 593 #endif
 594 }
 595
 596
 597 bool ScintillaWX::HasCaretSizeChanged() {
 598 #ifdef __WXMSW__
 599     if (( (0 != vs.caretWidth) && (sysCaretWidth != vs.caretWidth) )
 600         || (0 != vs.lineHeight) && (sysCaretHeight != vs.lineHeight)) {
 601         return true;
 602     }
 603 #endif
 604     return false;
 605 }
 606
 607 bool ScintillaWX::CreateSystemCaret() {
 608 #ifdef __WXMSW__
 609     sysCaretWidth = vs.caretWidth;
 610     if (0 == sysCaretWidth) {
 611         sysCaretWidth = 1;
 612     }
 613     sysCaretHeight = vs.lineHeight;
 614     int bitmapSize = (((sysCaretWidth + 15) & ~15) >> 3) * sysCaretHeight;
 615     char *bits = new char[bitmapSize];
 616     memset(bits, 0, bitmapSize);
 617     sysCaretBitmap = ::CreateBitmap(sysCaretWidth, sysCaretHeight, 1,
 618                                     1, reinterpret_cast<BYTE *>(bits));
 619     delete [] bits;
 620     BOOL retval = ::CreateCaret(GetHwndOf(stc), sysCaretBitmap,
 621                                 sysCaretWidth, sysCaretHeight);
 622     ::ShowCaret(GetHwndOf(stc));
 623     return retval != 0;
 624 #else
 625     return false;
 626 #endif
 627 }
 628
 629 bool ScintillaWX::DestroySystemCaret() {
 630 #ifdef __WXMSW__
 631     ::HideCaret(GetHwndOf(stc));
 632     BOOL retval = ::DestroyCaret();
 633     if (sysCaretBitmap) {
 634         ::DeleteObject(sysCaretBitmap);
 635         sysCaretBitmap = 0;
 636     }
 637     return retval != 0;
 638 #else
 639     return false;
 640 #endif
 641 }
 642
 643
 644 //----------------------------------------------------------------------
 645
 646
 647 long ScintillaWX::DefWndProc(unsigned int /*iMessage*/, unsigned long /*wParam*/, long /*lParam*/) {
 648     return 0;
 649 }
 650
 651 long ScintillaWX::WndProc(unsigned int iMessage, unsigned long wParam, long lParam) {
 652       switch (iMessage) {
 653       case SCI_CALLTIPSHOW: {
 654           // NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
 655           // because of the little tweak that needs done below for wxGTK.
 656           // When updating new versions double check that this is still
 657           // needed, and that any new code there is copied here too.
 658           Point pt = LocationFromPosition(wParam);
 659           char* defn = reinterpret_cast<char *>(lParam);
 660           AutoCompleteCancel();
 661           pt.y += vs.lineHeight;
 662           PRectangle rc = ct.CallTipStart(currentPos, pt,
 663                                           defn,
 664                                           vs.styles[STYLE_DEFAULT].fontName,
 665                                           vs.styles[STYLE_DEFAULT].sizeZoomed,
 666                                           CodePage(),
 667                                           vs.styles[STYLE_DEFAULT].characterSet,
 668                                           wMain);
 669           // If the call-tip window would be out of the client
 670           // space, adjust so it displays above the text.
 671           PRectangle rcClient = GetClientRectangle();
 672           if (rc.bottom > rcClient.bottom) {
 673 #ifdef __WXGTK__
 674               int offset = int(vs.lineHeight * 1.25)  + rc.Height();
 675 #else
 676               int offset = vs.lineHeight + rc.Height();
 677 #endif
 678               rc.top -= offset;
 679               rc.bottom -= offset;
 680           }
 681           // Now display the window.
 682           CreateCallTipWindow(rc);
 683           ct.wCallTip.SetPositionRelative(rc, wMain);
 684           ct.wCallTip.Show();
 685           break;
 686       }
 687
 688 #ifdef SCI_LEXER
 689       case SCI_LOADLEXERLIBRARY:
 690             LexerManager::GetInstance()->Load((const char*)lParam);
 691             break;
 692 #endif
 693
 694       default:
 695           return ScintillaBase::WndProc(iMessage, wParam, lParam);
 696       }
 697       return 0;
 698 }
 699
 700
 701
 702 //----------------------------------------------------------------------
 703 // Event delegates
 704
 705 void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
 706
 707     paintState = painting;
 708     Surface* surfaceWindow = Surface::Allocate();
 709     surfaceWindow->Init(dc, wMain.GetID());
 710     rcPaint = PRectangleFromwxRect(rect);
 711     PRectangle rcClient = GetClientRectangle();
 712     paintingAllText = rcPaint.Contains(rcClient);
 713
 714     ClipChildren(*dc, rcPaint);
 715     Paint(surfaceWindow, rcPaint);
 716
 717     delete surfaceWindow;
 718     if (paintState == paintAbandoned) {
 719         // Painting area was insufficient to cover new styling or brace
 720         // highlight positions
 721         FullPaint();
 722     }
 723     paintState = notPainting;
 724 }
 725
 726
 727 void ScintillaWX::DoHScroll(int type, int pos) {
 728     int xPos = xOffset;
 729     PRectangle rcText = GetTextRectangle();
 730     int pageWidth = rcText.Width() * 2 / 3;
 731     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 732         xPos -= H_SCROLL_STEP;
 733     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 734         xPos += H_SCROLL_STEP;
 735     else if (type == wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 736         xPos -= pageWidth;
 737     else if (type == wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN) {
 738         xPos += pageWidth;
 739         if (xPos > scrollWidth - rcText.Width()) {
 740             xPos = scrollWidth - rcText.Width();
 741         }
 742     }
 743     else if (type == wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 744         xPos = 0;
 745     else if (type == wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 746         xPos = scrollWidth;
 747     else if (type == wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 748         xPos = pos;
 749
 750     HorizontalScrollTo(xPos);
 751 }
 752
 753 void ScintillaWX::DoVScroll(int type, int pos) {
 754     int topLineNew = topLine;
 755     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 756         topLineNew -= 1;
 757     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 758         topLineNew += 1;
 759     else if (type ==  wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 760         topLineNew -= LinesToScroll();
 761     else if (type ==  wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN)
 762         topLineNew += LinesToScroll();
 763     else if (type ==  wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 764         topLineNew = 0;
 765     else if (type ==  wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 766         topLineNew = MaxScrollPos();
 767     else if (type ==   wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 768         topLineNew = pos;
 769
 770     ScrollTo(topLineNew);
 771 }
 772
 773 void ScintillaWX::DoMouseWheel(int rotation, int delta,
 774                                int linesPerAction, int ctrlDown,
 775                                bool isPageScroll ) {
 776     int topLineNew = topLine;
 777     int lines;
 778
 779     if (ctrlDown) {  // Zoom the fonts if Ctrl key down
 780         if (rotation < 0) {
 781             KeyCommand(SCI_ZOOMIN);
 782         }
 783         else {
 784             KeyCommand(SCI_ZOOMOUT);
 785         }
 786     }
 787     else { // otherwise just scroll the window
 788         if ( !delta )
 789             delta = 120;
 790         wheelRotation += rotation;
 791         lines = wheelRotation / delta;
 792         wheelRotation -= lines * delta;
 793         if (lines != 0) {
 794             if (isPageScroll)
 795                 lines = lines * LinesOnScreen();  // lines is either +1 or -1
 796             else
 797                 lines *= linesPerAction;
 798             topLineNew -= lines;
 799             ScrollTo(topLineNew);
 800         }
 801     }
 802 }
 803
 804
 805 void ScintillaWX::DoSize(int WXUNUSED(width), int WXUNUSED(height)) {
 806     ChangeSize();
 807 }
 808
 809 void ScintillaWX::DoLoseFocus(){
 810     focusEvent = true;
 811     SetFocusState(false);
 812     focusEvent = false;
 813     DestroySystemCaret();
 814 }
 815
 816 void ScintillaWX::DoGainFocus(){
 817     focusEvent = true;
 818     SetFocusState(true);
 819     focusEvent = false;
 820     DestroySystemCaret();
 821     CreateSystemCaret();
 822 }
 823
 824 void ScintillaWX::DoSysColourChange() {
 825     InvalidateStyleData();
 826 }
 827
 828 void ScintillaWX::DoLeftButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
 829     ButtonDown(pt, curTime, shift, ctrl, alt);
 830 }
 831
 832 void ScintillaWX::DoLeftButtonUp(Point pt, unsigned int curTime, bool ctrl) {
 833     ButtonUp(pt, curTime, ctrl);
 834 #if wxUSE_DRAG_AND_DROP
 835     if (startDragTimer->IsRunning()) {
 836         startDragTimer->Stop();
 837         SetDragPosition(invalidPosition);
 838         SetEmptySelection(PositionFromLocation(pt));
 839         ShowCaretAtCurrentPosition();
 840     }
 841 #endif // wxUSE_DRAG_AND_DROP
 842 }
 843
 844 void ScintillaWX::DoLeftButtonMove(Point pt) {
 845     ButtonMove(pt);
 846 }
 847
 848 #ifdef __WXGTK__
 849 void ScintillaWX::DoMiddleButtonUp(Point pt) {
 850     // Set the current position to the mouse click point and
 851     // then paste in the PRIMARY selection, if any.  wxGTK only.
 852     int newPos = PositionFromLocation(pt);
 853     MovePositionTo(newPos, noSel, true);
 854
 855     pdoc->BeginUndoAction();
 856     wxTextDataObject data;
 857     bool gotData = false;
 858     if (wxTheClipboard->Open()) {
 859         wxTheClipboard->UsePrimarySelection(true);
 860         gotData = wxTheClipboard->GetData(data);
 861         wxTheClipboard->UsePrimarySelection(false);
 862         wxTheClipboard->Close();
 863     }
 864     if (gotData) {
 865         wxString   text = wxTextBuffer::Translate(data.GetText(),
 866                                                   wxConvertEOLMode(pdoc->eolMode));
 867         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 868         int        len = strlen(buf);
 869         pdoc->InsertString(currentPos, buf, len);
 870         SetEmptySelection(currentPos + len);
 871     }
 872     pdoc->EndUndoAction();
 873     NotifyChange();
 874     Redraw();
 875
 876     ShowCaretAtCurrentPosition();
 877     EnsureCaretVisible();
 878 }
 879 #else
 880 void ScintillaWX::DoMiddleButtonUp(Point WXUNUSED(pt)) {
 881 }
 882 #endif
 883
 884
 885 void ScintillaWX::DoAddChar(int key) {
 886 #if wxUSE_UNICODE
 887     wxChar wszChars[2];
 888     wszChars[0] = (wxChar)key;
 889     wszChars[1] = 0;
 890     wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(wszChars);
 891     AddCharUTF((char*)buf.data(), strlen(buf));
 892 #else
 893     AddChar((char)key);
 894 #endif
 895 }
 896
 897
 898 int  ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
 899 {
 900     int key = evt.GetKeyCode();
 901     bool shift = evt.ShiftDown(),
 902          ctrl  = evt.ControlDown(),
 903          alt   = evt.AltDown();
 904
 905     if (ctrl && key >= 1 && key <= 26 && key != WXK_BACK)
 906         key += 'A' - 1;
 907
 908     switch (key) {
 909     case WXK_DOWN:              key = SCK_DOWN;     break;
 910     case WXK_UP:                key = SCK_UP;       break;
 911     case WXK_LEFT:              key = SCK_LEFT;     break;
 912     case WXK_RIGHT:             key = SCK_RIGHT;    break;
 913     case WXK_HOME:              key = SCK_HOME;     break;
 914     case WXK_END:               key = SCK_END;      break;
 915     case WXK_PAGEUP:            key = SCK_PRIOR;    break;
 916     case WXK_PAGEDOWN:          key = SCK_NEXT;     break;
 917     case WXK_NUMPAD_PAGEUP:     key = SCK_PRIOR;    break;
 918     case WXK_NUMPAD_PAGEDOWN:   key = SCK_NEXT;     break;
 919     case WXK_DELETE:            key = SCK_DELETE;   break;
 920     case WXK_INSERT:            key = SCK_INSERT;   break;
 921     case WXK_ESCAPE:            key = SCK_ESCAPE;   break;
 922     case WXK_BACK:              key = SCK_BACK;     break;
 923     case WXK_TAB:               key = SCK_TAB;      break;
 924     case WXK_NUMPAD_ENTER:      // fall through
 925     case WXK_RETURN:            key = SCK_RETURN;   break;
 926     case WXK_ADD:               // fall through
 927     case WXK_NUMPAD_ADD:        key = SCK_ADD;      break;
 928     case WXK_SUBTRACT:          // fall through
 929     case WXK_NUMPAD_SUBTRACT:   key = SCK_SUBTRACT; break;
 930     case WXK_DIVIDE:            // fall through
 931     case WXK_NUMPAD_DIVIDE:     key = SCK_DIVIDE;   break;
 932     case WXK_CONTROL:           key = 0; break;
 933     case WXK_ALT:               key = 0; break;
 934     case WXK_SHIFT:             key = 0; break;
 935     case WXK_MENU:              key = 0; break;
 936     }
 937
 938 #ifdef __WXMAC__
 939     if ( evt.MetaDown() ) {
 940         // check for a few common Mac Meta-key combos and remap them to Ctrl
 941         // for Scintilla
 942         switch ( key ) {
 943         case 'Z':       // Undo
 944         case 'X':       // Cut
 945         case 'C':       // Copy
 946         case 'V':       // Paste
 947         case 'A':       // Select All
 948             ctrl = true;
 949             break;
 950         }
 951     }
 952 #endif
 953
 954     int rv = KeyDown(key, shift, ctrl, alt, consumed);
 955
 956     if (key)
 957         return rv;
 958     else
 959         return 1;
 960 }
 961
 962
 963 void ScintillaWX::DoCommand(int ID) {
 964     Command(ID);
 965 }
 966
 967
 968 void ScintillaWX::DoContextMenu(Point pt) {
 969     if (displayPopupMenu)
 970         ContextMenu(pt);
 971 }
 972
 973 void ScintillaWX::DoOnListBox() {
 974     AutoCompleteCompleted();
 975 }
 976
 977
 978 void ScintillaWX::DoOnIdle(wxIdleEvent& evt) {
 979
 980     if ( Idle() )
 981         evt.RequestMore();
 982     else
 983         SetIdle(false);
 984 }
 985
 986 //----------------------------------------------------------------------
 987
 988 #if wxUSE_DRAG_AND_DROP
 989 bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
 990     SetDragPosition(invalidPosition);
 991
 992     wxString text = wxTextBuffer::Translate(data,
 993                                             wxConvertEOLMode(pdoc->eolMode));
 994
 995     // Send an event to allow the drag details to be changed
 996     wxStyledTextEvent evt(wxEVT_STC_DO_DROP, stc->GetId());
 997     evt.SetEventObject(stc);
 998     evt.SetDragResult(dragResult);
 999     evt.SetX(x);
1000     evt.SetY(y);
1001     evt.SetPosition(PositionFromLocation(Point(x,y)));
1002     evt.SetDragText(text);
1003     stc->GetEventHandler()->ProcessEvent(evt);
1004
1005     dragResult = evt.GetDragResult();
1006     if (dragResult == wxDragMove || dragResult == wxDragCopy) {
1007         DropAt(evt.GetPosition(),
1008                wx2stc(evt.GetDragText()),
1009                dragResult == wxDragMove,
1010                false); // TODO: rectangular?
1011         return true;
1012     }
1013     return false;
1014 }
1015
1016
1017 wxDragResult ScintillaWX::DoDragEnter(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResult def) {
1018     dragResult = def;
1019     return dragResult;
1020 }
1021
1022
1023 wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
1024     SetDragPosition(PositionFromLocation(Point(x, y)));
1025
1026     // Send an event to allow the drag result to be changed
1027     wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());
1028     evt.SetEventObject(stc);
1029     evt.SetDragResult(def);
1030     evt.SetX(x);
1031     evt.SetY(y);
1032     evt.SetPosition(PositionFromLocation(Point(x,y)));
1033     stc->GetEventHandler()->ProcessEvent(evt);
1034
1035     dragResult = evt.GetDragResult();
1036     return dragResult;
1037 }
1038
1039
1040 void ScintillaWX::DoDragLeave() {
1041     SetDragPosition(invalidPosition);
1042 }
1043 #endif // wxUSE_DRAG_AND_DROP
1044 //----------------------------------------------------------------------
1045
1046 // Force the whole window to be repainted
1047 void ScintillaWX::FullPaint() {
1048 #ifndef __WXMAC__
1049     stc->Refresh(false);
1050 #endif
1051     stc->Update();
1052 }
1053
1054
1055 void ScintillaWX::DoScrollToLine(int line) {
1056     ScrollTo(line);
1057 }
1058
1059
1060 void ScintillaWX::DoScrollToColumn(int column) {
1061     HorizontalScrollTo(column * vs.spaceWidth);
1062 }
1063
1064 // wxGTK doesn't appear to need this explicit clipping code any longer, but I
1065 // will leave it here commented out for a while just in case...
1066 void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect))
1067 {
1068 //     wxRegion rgn(wxRectFromPRectangle(rect));
1069 //     if (ac.Active()) {
1070 //         wxRect childRect = ((wxWindow*)ac.lb->GetID())->GetRect();
1071 //         rgn.Subtract(childRect);
1072 //     }
1073 //     if (ct.inCallTipMode) {
1074 //         wxSTCCallTip* tip = (wxSTCCallTip*)ct.wCallTip.GetID();
1075 //         wxRect childRect = tip->GetRect();
1076 // #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
1077 //         childRect.SetPosition(tip->GetMyPosition());
1078 // #endif
1079 //         rgn.Subtract(childRect);
1080 //     }
1081 //     dc.SetClippingRegion(rgn);
1082 }
1083
1084
1085 void ScintillaWX::SetUseAntiAliasing(bool useAA) {
1086     vs.extraFontFlag = useAA;
1087     InvalidateStyleRedraw();
1088 }
1089
1090 bool ScintillaWX::GetUseAntiAliasing() {
1091     return vs.extraFontFlag;
1092 }
1093
1094 //----------------------------------------------------------------------
1095 //----------------------------------------------------------------------