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 // For compilers that support precompilation, includes "wx.h".
  18 #include "wx/wxprec.h"
  19
  20 #ifdef __BORLANDC__
  21     #pragma hdrstop
  22 #endif
  23
  24
  25 #ifndef WX_PRECOMP
  26 #endif // WX_PRECOMP
  27
  28 #include "wx/textbuf.h"
  29 #include "wx/dataobj.h"
  30 #include "wx/clipbrd.h"
  31 #include "wx/dnd.h"
  32
  33 #include "ScintillaWX.h"
  34 #include "ExternalLexer.h"
  35 #include "wx/stc/stc.h"
  36 #include "PlatWX.h"
  37
  38 #ifdef __WXMSW__
  39     // GetHwndOf()
  40     #include "wx/msw/private.h"
  41 #endif
  42
  43 //----------------------------------------------------------------------
  44 // Helper classes
  45
  46 class wxSTCTimer : public wxTimer {
  47 public:
  48     wxSTCTimer(ScintillaWX* swx) {
  49         this->swx = swx;
  50     }
  51
  52     void Notify() {
  53         swx->DoTick();
  54     }
  55
  56 private:
  57     ScintillaWX* swx;
  58 };
  59
  60
  61 #if wxUSE_DRAG_AND_DROP
  62 class wxStartDragTimer : public wxTimer {
  63 public:
  64     wxStartDragTimer(ScintillaWX* swx) {
  65         this->swx = swx;
  66     }
  67
  68     void Notify() {
  69         swx->DoStartDrag();
  70     }
  71
  72 private:
  73     ScintillaWX* swx;
  74 };
  75
  76
  77 bool wxSTCDropTarget::OnDropText(wxCoord x, wxCoord y, const wxString& data) {
  78     return swx->DoDropText(x, y, data);
  79 }
  80
  81 wxDragResult  wxSTCDropTarget::OnEnter(wxCoord x, wxCoord y, wxDragResult def) {
  82     return swx->DoDragEnter(x, y, def);
  83 }
  84
  85 wxDragResult  wxSTCDropTarget::OnDragOver(wxCoord x, wxCoord y, wxDragResult def) {
  86     return swx->DoDragOver(x, y, def);
  87 }
  88
  89 void  wxSTCDropTarget::OnLeave() {
  90     swx->DoDragLeave();
  91 }
  92 #endif // wxUSE_DRAG_AND_DROP
  93
  94
  95 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
  96 #include <wx/popupwin.h>
  97 #define wxSTCCallTipBase wxPopupWindow
  98 #define param2  wxBORDER_NONE  // popup's 2nd param is flags
  99 #else
 100 #define wxSTCCallTipBase wxFrame
 101 #define param2 -1 // wxWindow's 2nd param is ID
 102 #endif
 103
 104 #include <wx/dcbuffer.h>
 105
 106 class wxSTCCallTip : public wxSTCCallTipBase {
 107 public:
 108     wxSTCCallTip(wxWindow* parent, CallTip* ct, ScintillaWX* swx) :
 109 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
 110         wxSTCCallTipBase(parent, wxBORDER_NONE),
 111 #else
 112         wxSTCCallTipBase(parent, -1, wxEmptyString, wxDefaultPosition, wxDefaultSize,
 113                          wxFRAME_NO_TASKBAR
 114                          | wxFRAME_FLOAT_ON_PARENT
 115                          | wxBORDER_NONE
 116 #ifdef __WXMAC__
 117                          | wxPOPUP_WINDOW
 118 #endif
 119             ),
 120 #endif
 121           m_ct(ct), m_swx(swx), m_cx(wxDefaultCoord), m_cy(wxDefaultCoord)
 122         {
 123         }
 124
 125     ~wxSTCCallTip() {
 126 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP && defined(__WXGTK__)
 127         wxRect rect = GetRect();
 128         rect.x = m_cx;
 129         rect.y = m_cy;
 130         GetParent()->Refresh(false, &rect);
 131 #endif
 132     }
 133
 134     bool AcceptsFocus() const { return false; }
 135
 136     void OnPaint(wxPaintEvent& WXUNUSED(evt))
 137     {
 138         wxBufferedPaintDC dc(this);
 139         Surface* surfaceWindow = Surface::Allocate();
 140         surfaceWindow->Init(&dc, m_ct->wDraw.GetID());
 141         m_ct->PaintCT(surfaceWindow);
 142         surfaceWindow->Release();
 143         delete surfaceWindow;
 144     }
 145
 146     void OnFocus(wxFocusEvent& event)
 147     {
 148         GetParent()->SetFocus();
 149         event.Skip();
 150     }
 151
 152     void OnLeftDown(wxMouseEvent& event)
 153     {
 154         wxPoint pt = event.GetPosition();
 155         Point p(pt.x, pt.y);
 156         m_ct->MouseClick(p);
 157         m_swx->CallTipClick();
 158     }
 159
 160     virtual void DoSetSize(int x, int y,
 161                            int width, int height,
 162                            int sizeFlags = wxSIZE_AUTO)
 163     {
 164         // convert coords to screen coords since we're a top-level window
 165         if (x != wxDefaultCoord) {
 166             m_cx = x;
 167             GetParent()->ClientToScreen(&x, NULL);
 168         }
 169         if (y != wxDefaultCoord) {
 170             m_cy = y;
 171             GetParent()->ClientToScreen(NULL, &y);
 172         }
 173         wxSTCCallTipBase::DoSetSize(x, y, width, height, sizeFlags);
 174     }
 175
 176 #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
 177 #else
 178     virtual bool Show( bool show = true )
 179     {
 180         // Although we're a frame, we always want the parent to be active, so
 181         // raise it whenever we get shown.
 182         bool rv = wxSTCCallTipBase::Show(show);
 183         if (rv && show)
 184         {
 185             wxTopLevelWindow *frame = wxDynamicCast(
 186                 wxGetTopLevelParent(GetParent()), wxTopLevelWindow);
 187             if (frame)
 188                 frame->Raise();
 189         }
 190         return rv;
 191     }
 192 #endif
 193
 194     wxPoint GetMyPosition()
 195     {
 196         return wxPoint(m_cx, m_cy);
 197     }
 198
 199 private:
 200     CallTip*      m_ct;
 201     ScintillaWX*  m_swx;
 202     int           m_cx, m_cy;
 203     DECLARE_EVENT_TABLE()
 204 };
 205
 206 BEGIN_EVENT_TABLE(wxSTCCallTip, wxSTCCallTipBase)
 207     EVT_PAINT(wxSTCCallTip::OnPaint)
 208     EVT_SET_FOCUS(wxSTCCallTip::OnFocus)
 209     EVT_LEFT_DOWN(wxSTCCallTip::OnLeftDown)
 210 END_EVENT_TABLE()
 211
 212
 213 //----------------------------------------------------------------------
 214
 215 #if wxUSE_DATAOBJ
 216 static wxTextFileType wxConvertEOLMode(int scintillaMode)
 217 {
 218     wxTextFileType type;
 219
 220     switch (scintillaMode) {
 221         case wxSTC_EOL_CRLF:
 222             type = wxTextFileType_Dos;
 223             break;
 224
 225         case wxSTC_EOL_CR:
 226             type = wxTextFileType_Mac;
 227             break;
 228
 229         case wxSTC_EOL_LF:
 230             type = wxTextFileType_Unix;
 231             break;
 232
 233         default:
 234             type = wxTextBuffer::typeDefault;
 235             break;
 236     }
 237     return type;
 238 }
 239 #endif // wxUSE_DATAOBJ
 240
 241
 242 //----------------------------------------------------------------------
 243 // Constructor/Destructor
 244
 245
 246 ScintillaWX::ScintillaWX(wxStyledTextCtrl* win) {
 247     capturedMouse = false;
 248     focusEvent = false;
 249     wMain = win;
 250     stc   = win;
 251     wheelRotation = 0;
 252     Initialise();
 253 #ifdef __WXMSW__
 254     sysCaretBitmap = 0;
 255     sysCaretWidth = 0;
 256     sysCaretHeight = 0;
 257 #endif
 258 #if wxUSE_DRAG_AND_DROP
 259     startDragTimer = new wxStartDragTimer(this);
 260 #endif // wxUSE_DRAG_AND_DROP
 261 }
 262
 263
 264 ScintillaWX::~ScintillaWX() {
 265 #if wxUSE_DRAG_AND_DROP
 266     delete startDragTimer;
 267 #endif // wxUSE_DRAG_AND_DROP
 268     Finalise();
 269 }
 270
 271 //----------------------------------------------------------------------
 272 // base class virtuals
 273
 274
 275 void ScintillaWX::Initialise() {
 276     //ScintillaBase::Initialise();
 277 #if wxUSE_DRAG_AND_DROP
 278     dropTarget = new wxSTCDropTarget;
 279     dropTarget->SetScintilla(this);
 280     stc->SetDropTarget(dropTarget);
 281 #endif // wxUSE_DRAG_AND_DROP
 282 #ifdef __WXMAC__
 283     vs.extraFontFlag = false;  // UseAntiAliasing
 284 #else
 285     vs.extraFontFlag = true;   // UseAntiAliasing
 286 #endif
 287 }
 288
 289
 290 void ScintillaWX::Finalise() {
 291     ScintillaBase::Finalise();
 292     SetTicking(false);
 293     SetIdle(false);
 294     DestroySystemCaret();
 295 }
 296
 297
 298 void ScintillaWX::StartDrag() {
 299 #if wxUSE_DRAG_AND_DROP
 300     // We defer the starting of the DnD, otherwise the LeftUp of a normal
 301     // click could be lost and the STC will think it is doing a DnD when the
 302     // user just wanted a normal click.
 303     startDragTimer->Start(200, true);
 304 #endif // wxUSE_DRAG_AND_DROP
 305 }
 306
 307 void ScintillaWX::DoStartDrag() {
 308 #if wxUSE_DRAG_AND_DROP
 309     wxString dragText = stc2wx(drag.s, drag.len);
 310
 311     // Send an event to allow the drag text to be changed
 312     wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
 313     evt.SetEventObject(stc);
 314     evt.SetDragText(dragText);
 315     evt.SetDragAllowMove(true);
 316     evt.SetPosition(wxMin(stc->GetSelectionStart(),
 317                           stc->GetSelectionEnd()));
 318     stc->GetEventHandler()->ProcessEvent(evt);
 319     dragText = evt.GetDragText();
 320
 321     if (dragText.length()) {
 322         wxDropSource        source(stc);
 323         wxTextDataObject    data(dragText);
 324         wxDragResult        result;
 325
 326         source.SetData(data);
 327         dropWentOutside = true;
 328         result = source.DoDragDrop(evt.GetDragAllowMove());
 329         if (result == wxDragMove && dropWentOutside)
 330             ClearSelection();
 331         inDragDrop = false;
 332         SetDragPosition(invalidPosition);
 333     }
 334 #endif // wxUSE_DRAG_AND_DROP
 335 }
 336
 337
 338 bool ScintillaWX::SetIdle(bool on) {
 339     if (idler.state != on) {
 340         // connect or disconnect the EVT_IDLE handler
 341         if (on)
 342             stc->Connect(wxID_ANY, wxEVT_IDLE,
 343                          (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 344         else
 345             stc->Disconnect(wxID_ANY, wxEVT_IDLE,
 346                             (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 347         idler.state = on;
 348     }
 349     return idler.state;
 350 }
 351
 352
 353 void ScintillaWX::SetTicking(bool on) {
 354     wxSTCTimer* steTimer;
 355     if (timer.ticking != on) {
 356         timer.ticking = on;
 357         if (timer.ticking) {
 358             steTimer = new wxSTCTimer(this);
 359             steTimer->Start(timer.tickSize);
 360             timer.tickerID = steTimer;
 361         } else {
 362             steTimer = (wxSTCTimer*)timer.tickerID;
 363             steTimer->Stop();
 364             delete steTimer;
 365             timer.tickerID = 0;
 366         }
 367     }
 368     timer.ticksToWait = caret.period;
 369 }
 370
 371
 372 void ScintillaWX::SetMouseCapture(bool on) {
 373     if (mouseDownCaptures) {
 374         if (on && !capturedMouse)
 375             stc->CaptureMouse();
 376         else if (!on && capturedMouse && stc->HasCapture())
 377             stc->ReleaseMouse();
 378         capturedMouse = on;
 379     }
 380 }
 381
 382
 383 bool ScintillaWX::HaveMouseCapture() {
 384     return capturedMouse;
 385 }
 386
 387
 388 void ScintillaWX::ScrollText(int linesToMove) {
 389     int dy = vs.lineHeight * (linesToMove);
 390     stc->ScrollWindow(0, dy);
 391     stc->Update();
 392 }
 393
 394 void ScintillaWX::SetVerticalScrollPos() {
 395     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 396         stc->SetScrollPos(wxVERTICAL, topLine);
 397     }
 398     else { // otherwise use the one that's been given to us
 399         stc->m_vScrollBar->SetThumbPosition(topLine);
 400     }
 401 }
 402
 403 void ScintillaWX::SetHorizontalScrollPos() {
 404     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 405         stc->SetScrollPos(wxHORIZONTAL, xOffset);
 406     }
 407     else { // otherwise use the one that's been given to us
 408         stc->m_hScrollBar->SetThumbPosition(xOffset);
 409     }
 410 }
 411
 412
 413 const int H_SCROLL_STEP = 20;
 414
 415 bool ScintillaWX::ModifyScrollBars(int nMax, int nPage) {
 416     bool modified = false;
 417
 418     int vertEnd = nMax;
 419     if (!verticalScrollBarVisible)
 420         vertEnd = 0;
 421
 422     // Check the vertical scrollbar
 423     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 424         int  sbMax    = stc->GetScrollRange(wxVERTICAL);
 425         int  sbThumb  = stc->GetScrollThumb(wxVERTICAL);
 426         int  sbPos    = stc->GetScrollPos(wxVERTICAL);
 427         if (sbMax != vertEnd || sbThumb != nPage) {
 428             stc->SetScrollbar(wxVERTICAL, sbPos, nPage, vertEnd+1);
 429             modified = true;
 430         }
 431     }
 432     else { // otherwise use the one that's been given to us
 433         int  sbMax    = stc->m_vScrollBar->GetRange();
 434         int  sbPage   = stc->m_vScrollBar->GetPageSize();
 435         int  sbPos    = stc->m_vScrollBar->GetThumbPosition();
 436         if (sbMax != vertEnd || sbPage != nPage) {
 437             stc->m_vScrollBar->SetScrollbar(sbPos, nPage, vertEnd+1, nPage);
 438             modified = true;
 439         }
 440     }
 441
 442
 443     // Check the horizontal scrollbar
 444     PRectangle rcText = GetTextRectangle();
 445     int horizEnd = scrollWidth;
 446     if (horizEnd < 0)
 447         horizEnd = 0;
 448     if (!horizontalScrollBarVisible || (wrapState != eWrapNone))
 449         horizEnd = 0;
 450     int pageWidth = rcText.Width();
 451
 452     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 453         int sbMax    = stc->GetScrollRange(wxHORIZONTAL);
 454         int sbThumb  = stc->GetScrollThumb(wxHORIZONTAL);
 455         int sbPos    = stc->GetScrollPos(wxHORIZONTAL);
 456         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 457             stc->SetScrollbar(wxHORIZONTAL, sbPos, pageWidth, horizEnd);
 458             modified = true;
 459             if (scrollWidth < pageWidth) {
 460                 HorizontalScrollTo(0);
 461             }
 462         }
 463     }
 464     else { // otherwise use the one that's been given to us
 465         int sbMax    = stc->m_hScrollBar->GetRange();
 466         int sbThumb  = stc->m_hScrollBar->GetPageSize();
 467         int sbPos    = stc->m_hScrollBar->GetThumbPosition();
 468         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 469             stc->m_hScrollBar->SetScrollbar(sbPos, pageWidth, horizEnd, pageWidth);
 470             modified = true;
 471             if (scrollWidth < pageWidth) {
 472                 HorizontalScrollTo(0);
 473             }
 474         }
 475     }
 476
 477     return modified;
 478 }
 479
 480
 481 void ScintillaWX::NotifyChange() {
 482     stc->NotifyChange();
 483 }
 484
 485
 486 void ScintillaWX::NotifyParent(SCNotification scn) {
 487     stc->NotifyParent(&scn);
 488 }
 489
 490
 491 // This method is overloaded from ScintillaBase in order to prevent the
 492 // AutoComplete window from being destroyed when it gets the focus.  There is
 493 // a side effect that the AutoComp will also not be destroyed when switching
 494 // to another window, but I think that is okay.
 495 void ScintillaWX::CancelModes() {
 496     if (! focusEvent)
 497         AutoCompleteCancel();
 498     ct.CallTipCancel();
 499     Editor::CancelModes();
 500 }
 501
 502
 503
 504 void ScintillaWX::Copy() {
 505     if (currentPos != anchor) {
 506         SelectionText st;
 507         CopySelectionRange(&st);
 508         CopyToClipboard(st);
 509     }
 510 }
 511
 512
 513 void ScintillaWX::Paste() {
 514     pdoc->BeginUndoAction();
 515     ClearSelection();
 516
 517 #if wxUSE_DATAOBJ
 518     wxTextDataObject data;
 519     bool gotData = false;
 520
 521     wxTheClipboard->UsePrimarySelection(false);
 522     if (wxTheClipboard->Open()) {
 523         gotData = wxTheClipboard->GetData(data);
 524         wxTheClipboard->Close();
 525     }
 526     if (gotData) {
 527         wxString   text = wxTextBuffer::Translate(data.GetText(),
 528                                                   wxConvertEOLMode(pdoc->eolMode));
 529         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 530
 531 #if wxUSE_UNICODE
 532         // free up the old character buffer in case the text is real big
 533         data.SetText(wxEmptyString);
 534         text = wxEmptyString;
 535 #endif
 536         int len = strlen(buf);
 537         pdoc->InsertString(currentPos, buf, len);
 538         SetEmptySelection(currentPos + len);
 539     }
 540 #endif // wxUSE_DATAOBJ
 541
 542     pdoc->EndUndoAction();
 543     NotifyChange();
 544     Redraw();
 545 }
 546
 547
 548 void ScintillaWX::CopyToClipboard(const SelectionText& st) {
 549 #if wxUSE_CLIPBOARD
 550     wxTheClipboard->UsePrimarySelection(false);
 551     if (wxTheClipboard->Open()) {
 552         wxString text = wxTextBuffer::Translate(stc2wx(st.s, st.len-1));
 553         wxTheClipboard->SetData(new wxTextDataObject(text));
 554         wxTheClipboard->Close();
 555     }
 556 #else
 557     wxUnusedVar(st);
 558 #endif // wxUSE_CLIPBOARD
 559 }
 560
 561
 562 bool ScintillaWX::CanPaste() {
 563 #if wxUSE_CLIPBOARD
 564     bool canPaste = false;
 565     bool didOpen;
 566
 567     if (Editor::CanPaste()) {
 568         wxTheClipboard->UsePrimarySelection(false);
 569         didOpen = !wxTheClipboard->IsOpened();
 570         if ( didOpen )
 571             wxTheClipboard->Open();
 572
 573         if (wxTheClipboard->IsOpened()) {
 574             canPaste = wxTheClipboard->IsSupported(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT);
 575             if (didOpen)
 576                 wxTheClipboard->Close();
 577         }
 578     }
 579     return canPaste;
 580 #else
 581     return false;
 582 #endif // wxUSE_CLIPBOARD
 583 }
 584
 585 void ScintillaWX::CreateCallTipWindow(PRectangle) {
 586     if (! ct.wCallTip.Created() ) {
 587         ct.wCallTip = new wxSTCCallTip(stc, &ct, this);
 588         ct.wDraw = ct.wCallTip;
 589     }
 590 }
 591
 592
 593 void ScintillaWX::AddToPopUp(const char *label, int cmd, bool enabled) {
 594     if (!label[0])
 595         ((wxMenu*)popup.GetID())->AppendSeparator();
 596     else
 597         ((wxMenu*)popup.GetID())->Append(cmd, wxGetTranslation(stc2wx(label)));
 598
 599     if (!enabled)
 600         ((wxMenu*)popup.GetID())->Enable(cmd, enabled);
 601 }
 602
 603
 604 // This is called by the Editor base class whenever something is selected.
 605 // For wxGTK we can put this text in the primary selection and then other apps
 606 // can paste with the middle button.
 607 void ScintillaWX::ClaimSelection() {
 608 #ifdef __WXGTK__
 609     // Put the selected text in the PRIMARY selection
 610     if (currentPos != anchor) {
 611         SelectionText st;
 612         CopySelectionRange(&st);
 613         wxTheClipboard->UsePrimarySelection(true);
 614         if (wxTheClipboard->Open()) {
 615             wxString text = stc2wx(st.s, st.len);
 616             wxTheClipboard->SetData(new wxTextDataObject(text));
 617             wxTheClipboard->Close();
 618         }
 619         wxTheClipboard->UsePrimarySelection(false);
 620     }
 621 #endif
 622 }
 623
 624
 625 void ScintillaWX::UpdateSystemCaret() {
 626 #ifdef __WXMSW__
 627     if (hasFocus) {
 628         if (HasCaretSizeChanged()) {
 629             DestroySystemCaret();
 630             CreateSystemCaret();
 631         }
 632         Point pos = LocationFromPosition(currentPos);
 633         ::SetCaretPos(pos.x, pos.y);
 634     }
 635 #endif
 636 }
 637
 638
 639 bool ScintillaWX::HasCaretSizeChanged() {
 640 #ifdef __WXMSW__
 641     if (( (0 != vs.caretWidth) && (sysCaretWidth != vs.caretWidth) )
 642         || (0 != vs.lineHeight) && (sysCaretHeight != vs.lineHeight)) {
 643         return true;
 644     }
 645 #endif
 646     return false;
 647 }
 648
 649 bool ScintillaWX::CreateSystemCaret() {
 650 #ifdef __WXMSW__
 651     sysCaretWidth = vs.caretWidth;
 652     if (0 == sysCaretWidth) {
 653         sysCaretWidth = 1;
 654     }
 655     sysCaretHeight = vs.lineHeight;
 656     int bitmapSize = (((sysCaretWidth + 15) & ~15) >> 3) * sysCaretHeight;
 657     char *bits = new char[bitmapSize];
 658     memset(bits, 0, bitmapSize);
 659     sysCaretBitmap = ::CreateBitmap(sysCaretWidth, sysCaretHeight, 1,
 660                                     1, reinterpret_cast<BYTE *>(bits));
 661     delete [] bits;
 662     BOOL retval = ::CreateCaret(GetHwndOf(stc), sysCaretBitmap,
 663                                 sysCaretWidth, sysCaretHeight);
 664     ::ShowCaret(GetHwndOf(stc));
 665     return retval != 0;
 666 #else
 667     return false;
 668 #endif
 669 }
 670
 671 bool ScintillaWX::DestroySystemCaret() {
 672 #ifdef __WXMSW__
 673     ::HideCaret(GetHwndOf(stc));
 674     BOOL retval = ::DestroyCaret();
 675     if (sysCaretBitmap) {
 676         ::DeleteObject(sysCaretBitmap);
 677         sysCaretBitmap = 0;
 678     }
 679     return retval != 0;
 680 #else
 681     return false;
 682 #endif
 683 }
 684
 685
 686 //----------------------------------------------------------------------
 687
 688
 689 sptr_t ScintillaWX::DefWndProc(unsigned int /*iMessage*/, uptr_t /*wParam*/, sptr_t /*lParam*/) {
 690     return 0;
 691 }
 692
 693 sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
 694       switch (iMessage) {
 695       case SCI_CALLTIPSHOW: {
 696           // NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
 697           // because of the little tweak that needs done below for wxGTK.
 698           // When updating new versions double check that this is still
 699           // needed, and that any new code there is copied here too.
 700           Point pt = LocationFromPosition(wParam);
 701           char* defn = reinterpret_cast<char *>(lParam);
 702           AutoCompleteCancel();
 703           pt.y += vs.lineHeight;
 704           PRectangle rc = ct.CallTipStart(currentPos, pt,
 705                                           defn,
 706                                           vs.styles[STYLE_DEFAULT].fontName,
 707                                           vs.styles[STYLE_DEFAULT].sizeZoomed,
 708                                           CodePage(),
 709                                           vs.styles[STYLE_DEFAULT].characterSet,
 710                                           wMain);
 711           // If the call-tip window would be out of the client
 712           // space, adjust so it displays above the text.
 713           PRectangle rcClient = GetClientRectangle();
 714           if (rc.bottom > rcClient.bottom) {
 715 #ifdef __WXGTK__
 716               int offset = int(vs.lineHeight * 1.25)  + rc.Height();
 717 #else
 718               int offset = vs.lineHeight + rc.Height();
 719 #endif
 720               rc.top -= offset;
 721               rc.bottom -= offset;
 722           }
 723           // Now display the window.
 724           CreateCallTipWindow(rc);
 725           ct.wCallTip.SetPositionRelative(rc, wMain);
 726           ct.wCallTip.Show();
 727           break;
 728       }
 729
 730 #ifdef SCI_LEXER
 731       case SCI_LOADLEXERLIBRARY:
 732             LexerManager::GetInstance()->Load((const char*)lParam);
 733             break;
 734 #endif
 735
 736       default:
 737           return ScintillaBase::WndProc(iMessage, wParam, lParam);
 738       }
 739       return 0;
 740 }
 741
 742
 743
 744 //----------------------------------------------------------------------
 745 // Event delegates
 746
 747 void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
 748
 749     paintState = painting;
 750     Surface* surfaceWindow = Surface::Allocate();
 751     surfaceWindow->Init(dc, wMain.GetID());
 752     rcPaint = PRectangleFromwxRect(rect);
 753     PRectangle rcClient = GetClientRectangle();
 754     paintingAllText = rcPaint.Contains(rcClient);
 755
 756     ClipChildren(*dc, rcPaint);
 757     Paint(surfaceWindow, rcPaint);
 758
 759     delete surfaceWindow;
 760     if (paintState == paintAbandoned) {
 761         // Painting area was insufficient to cover new styling or brace
 762         // highlight positions
 763         FullPaint();
 764     }
 765     paintState = notPainting;
 766 }
 767
 768
 769 void ScintillaWX::DoHScroll(int type, int pos) {
 770     int xPos = xOffset;
 771     PRectangle rcText = GetTextRectangle();
 772     int pageWidth = rcText.Width() * 2 / 3;
 773     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 774         xPos -= H_SCROLL_STEP;
 775     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 776         xPos += H_SCROLL_STEP;
 777     else if (type == wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 778         xPos -= pageWidth;
 779     else if (type == wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN) {
 780         xPos += pageWidth;
 781         if (xPos > scrollWidth - rcText.Width()) {
 782             xPos = scrollWidth - rcText.Width();
 783         }
 784     }
 785     else if (type == wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 786         xPos = 0;
 787     else if (type == wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 788         xPos = scrollWidth;
 789     else if (type == wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 790         xPos = pos;
 791
 792     HorizontalScrollTo(xPos);
 793 }
 794
 795 void ScintillaWX::DoVScroll(int type, int pos) {
 796     int topLineNew = topLine;
 797     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 798         topLineNew -= 1;
 799     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 800         topLineNew += 1;
 801     else if (type ==  wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 802         topLineNew -= LinesToScroll();
 803     else if (type ==  wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN)
 804         topLineNew += LinesToScroll();
 805     else if (type ==  wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 806         topLineNew = 0;
 807     else if (type ==  wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 808         topLineNew = MaxScrollPos();
 809     else if (type ==   wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 810         topLineNew = pos;
 811
 812     ScrollTo(topLineNew);
 813 }
 814
 815 void ScintillaWX::DoMouseWheel(int rotation, int delta,
 816                                int linesPerAction, int ctrlDown,
 817                                bool isPageScroll ) {
 818     int topLineNew = topLine;
 819     int lines;
 820
 821     if (ctrlDown) {  // Zoom the fonts if Ctrl key down
 822         if (rotation < 0) {
 823             KeyCommand(SCI_ZOOMIN);
 824         }
 825         else {
 826             KeyCommand(SCI_ZOOMOUT);
 827         }
 828     }
 829     else { // otherwise just scroll the window
 830         if ( !delta )
 831             delta = 120;
 832         wheelRotation += rotation;
 833         lines = wheelRotation / delta;
 834         wheelRotation -= lines * delta;
 835         if (lines != 0) {
 836             if (isPageScroll)
 837                 lines = lines * LinesOnScreen();  // lines is either +1 or -1
 838             else
 839                 lines *= linesPerAction;
 840             topLineNew -= lines;
 841             ScrollTo(topLineNew);
 842         }
 843     }
 844 }
 845
 846
 847 void ScintillaWX::DoSize(int WXUNUSED(width), int WXUNUSED(height)) {
 848     ChangeSize();
 849 }
 850
 851 void ScintillaWX::DoLoseFocus(){
 852     focusEvent = true;
 853     SetFocusState(false);
 854     focusEvent = false;
 855     DestroySystemCaret();
 856 }
 857
 858 void ScintillaWX::DoGainFocus(){
 859     focusEvent = true;
 860     SetFocusState(true);
 861     focusEvent = false;
 862     DestroySystemCaret();
 863     CreateSystemCaret();
 864 }
 865
 866 void ScintillaWX::DoSysColourChange() {
 867     InvalidateStyleData();
 868 }
 869
 870 void ScintillaWX::DoLeftButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
 871     ButtonDown(pt, curTime, shift, ctrl, alt);
 872 }
 873
 874 void ScintillaWX::DoLeftButtonUp(Point pt, unsigned int curTime, bool ctrl) {
 875     ButtonUp(pt, curTime, ctrl);
 876 #if wxUSE_DRAG_AND_DROP
 877     if (startDragTimer->IsRunning()) {
 878         startDragTimer->Stop();
 879         SetDragPosition(invalidPosition);
 880         SetEmptySelection(PositionFromLocation(pt));
 881         ShowCaretAtCurrentPosition();
 882     }
 883 #endif // wxUSE_DRAG_AND_DROP
 884 }
 885
 886 void ScintillaWX::DoLeftButtonMove(Point pt) {
 887     ButtonMove(pt);
 888 }
 889
 890 #ifdef __WXGTK__
 891 void ScintillaWX::DoMiddleButtonUp(Point pt) {
 892     // Set the current position to the mouse click point and
 893     // then paste in the PRIMARY selection, if any.  wxGTK only.
 894     int newPos = PositionFromLocation(pt);
 895     MovePositionTo(newPos, noSel, true);
 896
 897     pdoc->BeginUndoAction();
 898     wxTextDataObject data;
 899     bool gotData = false;
 900     wxTheClipboard->UsePrimarySelection(true);
 901     if (wxTheClipboard->Open()) {
 902         gotData = wxTheClipboard->GetData(data);
 903         wxTheClipboard->Close();
 904     }
 905     wxTheClipboard->UsePrimarySelection(false);
 906     if (gotData) {
 907         wxString   text = wxTextBuffer::Translate(data.GetText(),
 908                                                   wxConvertEOLMode(pdoc->eolMode));
 909         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 910         int        len = strlen(buf);
 911         pdoc->InsertString(currentPos, buf, len);
 912         SetEmptySelection(currentPos + len);
 913     }
 914     pdoc->EndUndoAction();
 915     NotifyChange();
 916     Redraw();
 917
 918     ShowCaretAtCurrentPosition();
 919     EnsureCaretVisible();
 920 }
 921 #else
 922 void ScintillaWX::DoMiddleButtonUp(Point WXUNUSED(pt)) {
 923 }
 924 #endif
 925
 926
 927 void ScintillaWX::DoAddChar(int key) {
 928 #if wxUSE_UNICODE
 929     wxChar wszChars[2];
 930     wszChars[0] = (wxChar)key;
 931     wszChars[1] = 0;
 932     wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(wszChars);
 933     AddCharUTF((char*)buf.data(), strlen(buf));
 934 #else
 935     AddChar((char)key);
 936 #endif
 937 }
 938
 939
 940 int  ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
 941 {
 942     int key = evt.GetKeyCode();
 943     bool shift = evt.ShiftDown(),
 944          ctrl  = evt.ControlDown(),
 945          alt   = evt.AltDown();
 946
 947     if (ctrl && key >= 1 && key <= 26 && key != WXK_BACK)
 948         key += 'A' - 1;
 949
 950     switch (key) {
 951     case WXK_DOWN:              key = SCK_DOWN;     break;
 952     case WXK_UP:                key = SCK_UP;       break;
 953     case WXK_LEFT:              key = SCK_LEFT;     break;
 954     case WXK_RIGHT:             key = SCK_RIGHT;    break;
 955     case WXK_HOME:              key = SCK_HOME;     break;
 956     case WXK_END:               key = SCK_END;      break;
 957     case WXK_PAGEUP:            key = SCK_PRIOR;    break;
 958     case WXK_PAGEDOWN:          key = SCK_NEXT;     break;
 959     case WXK_NUMPAD_DOWN:       key = SCK_DOWN;     break;
 960     case WXK_NUMPAD_UP:         key = SCK_UP;       break;
 961     case WXK_NUMPAD_LEFT:       key = SCK_LEFT;     break;
 962     case WXK_NUMPAD_RIGHT:      key = SCK_RIGHT;    break;
 963     case WXK_NUMPAD_HOME:       key = SCK_HOME;     break;
 964     case WXK_NUMPAD_END:        key = SCK_END;      break;
 965     case WXK_NUMPAD_PAGEUP:     key = SCK_PRIOR;    break;
 966     case WXK_NUMPAD_PAGEDOWN:   key = SCK_NEXT;     break;
 967     case WXK_NUMPAD_DELETE:     key = SCK_DELETE;   break;
 968     case WXK_NUMPAD_INSERT:     key = SCK_INSERT;   break;
 969     case WXK_DELETE:            key = SCK_DELETE;   break;
 970     case WXK_INSERT:            key = SCK_INSERT;   break;
 971     case WXK_ESCAPE:            key = SCK_ESCAPE;   break;
 972     case WXK_BACK:              key = SCK_BACK;     break;
 973     case WXK_TAB:               key = SCK_TAB;      break;
 974     case WXK_NUMPAD_ENTER:      // fall through
 975     case WXK_RETURN:            key = SCK_RETURN;   break;
 976     case WXK_ADD:               // fall through
 977     case WXK_NUMPAD_ADD:        key = SCK_ADD;      break;
 978     case WXK_SUBTRACT:          // fall through
 979     case WXK_NUMPAD_SUBTRACT:   key = SCK_SUBTRACT; break;
 980     case WXK_DIVIDE:            // fall through
 981     case WXK_NUMPAD_DIVIDE:     key = SCK_DIVIDE;   break;
 982     case WXK_CONTROL:           key = 0; break;
 983     case WXK_ALT:               key = 0; break;
 984     case WXK_SHIFT:             key = 0; break;
 985     case WXK_MENU:              key = 0; break;
 986     }
 987
 988 #ifdef __WXMAC__
 989     if ( evt.MetaDown() ) {
 990         // check for a few common Mac Meta-key combos and remap them to Ctrl
 991         // for Scintilla
 992         switch ( key ) {
 993         case 'Z':       // Undo
 994         case 'X':       // Cut
 995         case 'C':       // Copy
 996         case 'V':       // Paste
 997         case 'A':       // Select All
 998             ctrl = true;
 999             break;
1000         }
1001     }
1002 #endif
1003
1004     int rv = KeyDown(key, shift, ctrl, alt, consumed);
1005
1006     if (key)
1007         return rv;
1008     else
1009         return 1;
1010 }
1011
1012
1013 void ScintillaWX::DoCommand(int ID) {
1014     Command(ID);
1015 }
1016
1017
1018 void ScintillaWX::DoContextMenu(Point pt) {
1019     if (displayPopupMenu)
1020         ContextMenu(pt);
1021 }
1022
1023 void ScintillaWX::DoOnListBox() {
1024     AutoCompleteCompleted();
1025 }
1026
1027
1028 void ScintillaWX::DoOnIdle(wxIdleEvent& evt) {
1029
1030     if ( Idle() )
1031         evt.RequestMore();
1032     else
1033         SetIdle(false);
1034 }
1035
1036 //----------------------------------------------------------------------
1037
1038 #if wxUSE_DRAG_AND_DROP
1039 bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
1040     SetDragPosition(invalidPosition);
1041
1042     wxString text = wxTextBuffer::Translate(data,
1043                                             wxConvertEOLMode(pdoc->eolMode));
1044
1045     // Send an event to allow the drag details to be changed
1046     wxStyledTextEvent evt(wxEVT_STC_DO_DROP, stc->GetId());
1047     evt.SetEventObject(stc);
1048     evt.SetDragResult(dragResult);
1049     evt.SetX(x);
1050     evt.SetY(y);
1051     evt.SetPosition(PositionFromLocation(Point(x,y)));
1052     evt.SetDragText(text);
1053     stc->GetEventHandler()->ProcessEvent(evt);
1054
1055     dragResult = evt.GetDragResult();
1056     if (dragResult == wxDragMove || dragResult == wxDragCopy) {
1057         DropAt(evt.GetPosition(),
1058                wx2stc(evt.GetDragText()),
1059                dragResult == wxDragMove,
1060                false); // TODO: rectangular?
1061         return true;
1062     }
1063     return false;
1064 }
1065
1066
1067 wxDragResult ScintillaWX::DoDragEnter(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResult def) {
1068     dragResult = def;
1069     return dragResult;
1070 }
1071
1072
1073 wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
1074     SetDragPosition(PositionFromLocation(Point(x, y)));
1075
1076     // Send an event to allow the drag result to be changed
1077     wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());
1078     evt.SetEventObject(stc);
1079     evt.SetDragResult(def);
1080     evt.SetX(x);
1081     evt.SetY(y);
1082     evt.SetPosition(PositionFromLocation(Point(x,y)));
1083     stc->GetEventHandler()->ProcessEvent(evt);
1084
1085     dragResult = evt.GetDragResult();
1086     return dragResult;
1087 }
1088
1089
1090 void ScintillaWX::DoDragLeave() {
1091     SetDragPosition(invalidPosition);
1092 }
1093 #endif // wxUSE_DRAG_AND_DROP
1094 //----------------------------------------------------------------------
1095
1096 // Force the whole window to be repainted
1097 void ScintillaWX::FullPaint() {
1098 #ifndef __WXMAC__
1099     stc->Refresh(false);
1100 #endif
1101     stc->Update();
1102 }
1103
1104
1105 void ScintillaWX::DoScrollToLine(int line) {
1106     ScrollTo(line);
1107 }
1108
1109
1110 void ScintillaWX::DoScrollToColumn(int column) {
1111     HorizontalScrollTo(column * vs.spaceWidth);
1112 }
1113
1114 // wxGTK doesn't appear to need this explicit clipping code any longer, but I
1115 // will leave it here commented out for a while just in case...
1116 void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect))
1117 {
1118 //     wxRegion rgn(wxRectFromPRectangle(rect));
1119 //     if (ac.Active()) {
1120 //         wxRect childRect = ((wxWindow*)ac.lb->GetID())->GetRect();
1121 //         rgn.Subtract(childRect);
1122 //     }
1123 //     if (ct.inCallTipMode) {
1124 //         wxSTCCallTip* tip = (wxSTCCallTip*)ct.wCallTip.GetID();
1125 //         wxRect childRect = tip->GetRect();
1126 // #if wxUSE_POPUPWIN && wxSTC_USE_POPUP
1127 //         childRect.SetPosition(tip->GetMyPosition());
1128 // #endif
1129 //         rgn.Subtract(childRect);
1130 //     }
1131 //     dc.SetClippingRegion(rgn);
1132 }
1133
1134
1135 void ScintillaWX::SetUseAntiAliasing(bool useAA) {
1136     vs.extraFontFlag = useAA;
1137     InvalidateStyleRedraw();
1138 }
1139
1140 bool ScintillaWX::GetUseAntiAliasing() {
1141     return vs.extraFontFlag;
1142 }
1143
1144 //----------------------------------------------------------------------
1145 //----------------------------------------------------------------------