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 #if wxUSE_STC
  25
  26 #ifndef WX_PRECOMP
  27     #include "wx/scrolbar.h"
  28     #include "wx/menu.h"
  29     #include "wx/timer.h"
  30 #endif // WX_PRECOMP
  31
  32 #include "wx/textbuf.h"
  33 #include "wx/dataobj.h"
  34 #include "wx/clipbrd.h"
  35 #include "wx/dnd.h"
  36
  37 #include "ScintillaWX.h"
  38 #include "ExternalLexer.h"
  39 #include "wx/stc/stc.h"
  40 #include "wx/stc/private.h"
  41 #include "PlatWX.h"
  42
  43 #ifdef __WXMSW__
  44     // GetHwndOf()
  45     #include "wx/msw/private.h"
  46 #endif
  47
  48 //----------------------------------------------------------------------
  49 // Helper classes
  50
  51 class wxSTCTimer : public wxTimer {
  52 public:
  53     wxSTCTimer(ScintillaWX* swx) {
  54         m_swx = swx;
  55     }
  56
  57     void Notify() {
  58         m_swx->DoTick();
  59     }
  60
  61 private:
  62     ScintillaWX* m_swx;
  63 };
  64
  65
  66 #if wxUSE_DRAG_AND_DROP
  67 class wxStartDragTimer : public wxTimer {
  68 public:
  69     wxStartDragTimer(ScintillaWX* swx) {
  70         m_swx = swx;
  71     }
  72
  73     void Notify() {
  74         m_swx->DoStartDrag();
  75     }
  76
  77 private:
  78     ScintillaWX* m_swx;
  79 };
  80
  81
  82 bool wxSTCDropTarget::OnDropText(wxCoord x, wxCoord y, const wxString& data) {
  83     return m_swx->DoDropText(x, y, data);
  84 }
  85
  86 wxDragResult  wxSTCDropTarget::OnEnter(wxCoord x, wxCoord y, wxDragResult def) {
  87     return m_swx->DoDragEnter(x, y, def);
  88 }
  89
  90 wxDragResult  wxSTCDropTarget::OnDragOver(wxCoord x, wxCoord y, wxDragResult def) {
  91     return m_swx->DoDragOver(x, y, def);
  92 }
  93
  94 void  wxSTCDropTarget::OnLeave() {
  95     m_swx->DoDragLeave();
  96 }
  97 #endif // wxUSE_DRAG_AND_DROP
  98
  99
 100 #if wxUSE_POPUPWIN
 101 #include "wx/popupwin.h"
 102 #define wxSTCCallTipBase wxPopupWindow
 103 #else
 104 #include "wx/frame.h"
 105 #define wxSTCCallTipBase wxFrame
 106 #endif
 107
 108 #include "wx/dcbuffer.h"
 109
 110 class wxSTCCallTip : public wxSTCCallTipBase {
 111 public:
 112     wxSTCCallTip(wxWindow* parent, CallTip* ct, ScintillaWX* swx) :
 113 #if wxUSE_POPUPWIN
 114         wxSTCCallTipBase(parent, wxBORDER_NONE),
 115 #else
 116         wxSTCCallTipBase(parent, -1, wxEmptyString, wxDefaultPosition, wxDefaultSize,
 117                          wxFRAME_NO_TASKBAR
 118                          | wxFRAME_FLOAT_ON_PARENT
 119                          | wxBORDER_NONE
 120 #ifdef __WXMAC__
 121                          | wxPOPUP_WINDOW
 122 #endif
 123             ),
 124 #endif
 125           m_ct(ct), m_swx(swx), m_cx(wxDefaultCoord), m_cy(wxDefaultCoord)
 126         {
 127             SetBackgroundStyle(wxBG_STYLE_CUSTOM);
 128         }
 129
 130     ~wxSTCCallTip() {
 131 #if wxUSE_POPUPWIN && defined(__WXGTK__)
 132         wxRect rect = GetRect();
 133         rect.x = m_cx;
 134         rect.y = m_cy;
 135         GetParent()->Refresh(false, &rect);
 136 #endif
 137     }
 138
 139     bool AcceptsFocus() const { return false; }
 140
 141     void OnPaint(wxPaintEvent& WXUNUSED(evt))
 142     {
 143         wxAutoBufferedPaintDC dc(this);
 144         Surface* surfaceWindow = Surface::Allocate();
 145         surfaceWindow->Init(&dc, m_ct->wDraw.GetID());
 146         m_ct->PaintCT(surfaceWindow);
 147         surfaceWindow->Release();
 148         delete surfaceWindow;
 149     }
 150
 151     void OnFocus(wxFocusEvent& event)
 152     {
 153         GetParent()->SetFocus();
 154         event.Skip();
 155     }
 156
 157     void OnLeftDown(wxMouseEvent& event)
 158     {
 159         wxPoint pt = event.GetPosition();
 160         Point p(pt.x, pt.y);
 161         m_ct->MouseClick(p);
 162         m_swx->CallTipClick();
 163     }
 164
 165     virtual void DoSetSize(int x, int y,
 166                            int width, int height,
 167                            int sizeFlags = wxSIZE_AUTO)
 168     {
 169         // convert coords to screen coords since we're a top-level window
 170         if (x != wxDefaultCoord) {
 171             m_cx = x;
 172             GetParent()->ClientToScreen(&x, NULL);
 173         }
 174         if (y != wxDefaultCoord) {
 175             m_cy = y;
 176             GetParent()->ClientToScreen(NULL, &y);
 177         }
 178         wxSTCCallTipBase::DoSetSize(x, y, width, height, sizeFlags);
 179     }
 180
 181 #if wxUSE_POPUPWIN
 182 #else
 183     virtual bool Show( bool show = true )
 184     {
 185         // Although we're a frame, we always want the parent to be active, so
 186         // raise it whenever we get shown.
 187         bool rv = wxSTCCallTipBase::Show(show);
 188         if (rv && show)
 189         {
 190             wxTopLevelWindow *frame = wxDynamicCast(
 191                 wxGetTopLevelParent(GetParent()), wxTopLevelWindow);
 192             if (frame)
 193                 frame->Raise();
 194         }
 195         return rv;
 196     }
 197 #endif
 198
 199     wxPoint GetMyPosition()
 200     {
 201         return wxPoint(m_cx, m_cy);
 202     }
 203
 204 private:
 205     CallTip*      m_ct;
 206     ScintillaWX*  m_swx;
 207     int           m_cx, m_cy;
 208     DECLARE_EVENT_TABLE()
 209 };
 210
 211 BEGIN_EVENT_TABLE(wxSTCCallTip, wxSTCCallTipBase)
 212     EVT_PAINT(wxSTCCallTip::OnPaint)
 213     EVT_SET_FOCUS(wxSTCCallTip::OnFocus)
 214     EVT_LEFT_DOWN(wxSTCCallTip::OnLeftDown)
 215 END_EVENT_TABLE()
 216
 217
 218 //----------------------------------------------------------------------
 219
 220 #if wxUSE_DATAOBJ
 221 static wxTextFileType wxConvertEOLMode(int scintillaMode)
 222 {
 223     wxTextFileType type;
 224
 225     switch (scintillaMode) {
 226         case wxSTC_EOL_CRLF:
 227             type = wxTextFileType_Dos;
 228             break;
 229
 230         case wxSTC_EOL_CR:
 231             type = wxTextFileType_Mac;
 232             break;
 233
 234         case wxSTC_EOL_LF:
 235             type = wxTextFileType_Unix;
 236             break;
 237
 238         default:
 239             type = wxTextBuffer::typeDefault;
 240             break;
 241     }
 242     return type;
 243 }
 244 #endif // wxUSE_DATAOBJ
 245
 246
 247 //----------------------------------------------------------------------
 248 // Constructor/Destructor
 249
 250
 251 ScintillaWX::ScintillaWX(wxStyledTextCtrl* win) {
 252     capturedMouse = false;
 253     focusEvent = false;
 254     wMain = win;
 255     stc   = win;
 256     wheelRotation = 0;
 257     Initialise();
 258 #ifdef __WXMSW__
 259     sysCaretBitmap = 0;
 260     sysCaretWidth = 0;
 261     sysCaretHeight = 0;
 262 #endif
 263 #if wxUSE_DRAG_AND_DROP
 264     startDragTimer = new wxStartDragTimer(this);
 265 #endif // wxUSE_DRAG_AND_DROP
 266 }
 267
 268
 269 ScintillaWX::~ScintillaWX() {
 270 #if wxUSE_DRAG_AND_DROP
 271     delete startDragTimer;
 272 #endif // wxUSE_DRAG_AND_DROP
 273     Finalise();
 274 }
 275
 276 //----------------------------------------------------------------------
 277 // base class virtuals
 278
 279
 280 void ScintillaWX::Initialise() {
 281     //ScintillaBase::Initialise();
 282 #if wxUSE_DRAG_AND_DROP
 283     dropTarget = new wxSTCDropTarget;
 284     dropTarget->SetScintilla(this);
 285     stc->SetDropTarget(dropTarget);
 286 #endif // wxUSE_DRAG_AND_DROP
 287 #ifdef __WXMAC__
 288     vs.extraFontFlag = false;  // UseAntiAliasing
 289 #else
 290     vs.extraFontFlag = true;   // UseAntiAliasing
 291 #endif
 292 }
 293
 294
 295 void ScintillaWX::Finalise() {
 296     ScintillaBase::Finalise();
 297     SetTicking(false);
 298     SetIdle(false);
 299     DestroySystemCaret();
 300 }
 301
 302
 303 void ScintillaWX::StartDrag() {
 304 #if wxUSE_DRAG_AND_DROP
 305     // We defer the starting of the DnD, otherwise the LeftUp of a normal
 306     // click could be lost and the STC will think it is doing a DnD when the
 307     // user just wanted a normal click.
 308     startDragTimer->Start(200, true);
 309 #endif // wxUSE_DRAG_AND_DROP
 310 }
 311
 312 void ScintillaWX::DoStartDrag() {
 313 #if wxUSE_DRAG_AND_DROP
 314     wxString dragText = stc2wx(drag.s, drag.len);
 315
 316     // Send an event to allow the drag text to be changed
 317     wxStyledTextEvent evt(wxEVT_STC_START_DRAG, stc->GetId());
 318     evt.SetEventObject(stc);
 319     evt.SetDragText(dragText);
 320     evt.SetDragAllowMove(true);
 321     evt.SetPosition(wxMin(stc->GetSelectionStart(),
 322                           stc->GetSelectionEnd()));
 323     stc->GetEventHandler()->ProcessEvent(evt);
 324     dragText = evt.GetDragText();
 325
 326     if (dragText.length()) {
 327         wxDropSource        source(stc);
 328         wxTextDataObject    data(dragText);
 329         wxDragResult        result;
 330
 331         source.SetData(data);
 332         dropWentOutside = true;
 333         result = source.DoDragDrop(evt.GetDragAllowMove());
 334         if (result == wxDragMove && dropWentOutside)
 335             ClearSelection();
 336         inDragDrop = ddNone;
 337         SetDragPosition(invalidPosition);
 338     }
 339 #endif // wxUSE_DRAG_AND_DROP
 340 }
 341
 342
 343 bool ScintillaWX::SetIdle(bool on) {
 344     if (idler.state != on) {
 345         // connect or disconnect the EVT_IDLE handler
 346         if (on)
 347             stc->Connect(wxID_ANY, wxEVT_IDLE,
 348                          (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 349         else
 350             stc->Disconnect(wxID_ANY, wxEVT_IDLE,
 351                             (wxObjectEventFunction) (wxEventFunction) (wxIdleEventFunction) &wxStyledTextCtrl::OnIdle);
 352         idler.state = on;
 353     }
 354     return idler.state;
 355 }
 356
 357
 358 void ScintillaWX::SetTicking(bool on) {
 359     wxSTCTimer* steTimer;
 360     if (timer.ticking != on) {
 361         timer.ticking = on;
 362         if (timer.ticking) {
 363             steTimer = new wxSTCTimer(this);
 364             steTimer->Start(timer.tickSize);
 365             timer.tickerID = steTimer;
 366         } else {
 367             steTimer = (wxSTCTimer*)timer.tickerID;
 368             steTimer->Stop();
 369             delete steTimer;
 370             timer.tickerID = 0;
 371         }
 372     }
 373     timer.ticksToWait = caret.period;
 374 }
 375
 376
 377 void ScintillaWX::SetMouseCapture(bool on) {
 378     if (mouseDownCaptures) {
 379         if (on && !capturedMouse)
 380             stc->CaptureMouse();
 381         else if (!on && capturedMouse && stc->HasCapture())
 382             stc->ReleaseMouse();
 383         capturedMouse = on;
 384     }
 385 }
 386
 387
 388 bool ScintillaWX::HaveMouseCapture() {
 389     return capturedMouse;
 390 }
 391
 392
 393 void ScintillaWX::ScrollText(int linesToMove) {
 394     int dy = vs.lineHeight * (linesToMove);
 395     stc->ScrollWindow(0, dy);
 396     stc->Update();
 397 }
 398
 399 void ScintillaWX::SetVerticalScrollPos() {
 400     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 401         stc->SetScrollPos(wxVERTICAL, topLine);
 402     }
 403     else { // otherwise use the one that's been given to us
 404         stc->m_vScrollBar->SetThumbPosition(topLine);
 405     }
 406 }
 407
 408 void ScintillaWX::SetHorizontalScrollPos() {
 409     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 410         stc->SetScrollPos(wxHORIZONTAL, xOffset);
 411     }
 412     else { // otherwise use the one that's been given to us
 413         stc->m_hScrollBar->SetThumbPosition(xOffset);
 414     }
 415 }
 416
 417
 418 const int H_SCROLL_STEP = 20;
 419
 420 bool ScintillaWX::ModifyScrollBars(int nMax, int nPage) {
 421     bool modified = false;
 422
 423     int vertEnd = nMax;
 424     if (!verticalScrollBarVisible)
 425         vertEnd = 0;
 426
 427     // Check the vertical scrollbar
 428     if (stc->m_vScrollBar == NULL) {  // Use built-in scrollbar
 429         int  sbMax    = stc->GetScrollRange(wxVERTICAL);
 430         int  sbThumb  = stc->GetScrollThumb(wxVERTICAL);
 431         int  sbPos    = stc->GetScrollPos(wxVERTICAL);
 432         if (sbMax != vertEnd || sbThumb != nPage) {
 433             stc->SetScrollbar(wxVERTICAL, sbPos, nPage, vertEnd+1);
 434             modified = true;
 435         }
 436     }
 437     else { // otherwise use the one that's been given to us
 438         int  sbMax    = stc->m_vScrollBar->GetRange();
 439         int  sbPage   = stc->m_vScrollBar->GetPageSize();
 440         int  sbPos    = stc->m_vScrollBar->GetThumbPosition();
 441         if (sbMax != vertEnd || sbPage != nPage) {
 442             stc->m_vScrollBar->SetScrollbar(sbPos, nPage, vertEnd+1, nPage);
 443             modified = true;
 444         }
 445     }
 446
 447
 448     // Check the horizontal scrollbar
 449     PRectangle rcText = GetTextRectangle();
 450     int horizEnd = scrollWidth;
 451     if (horizEnd < 0)
 452         horizEnd = 0;
 453     if (!horizontalScrollBarVisible || (wrapState != eWrapNone))
 454         horizEnd = 0;
 455     int pageWidth = rcText.Width();
 456
 457     if (stc->m_hScrollBar == NULL) {  // Use built-in scrollbar
 458         int sbMax    = stc->GetScrollRange(wxHORIZONTAL);
 459         int sbThumb  = stc->GetScrollThumb(wxHORIZONTAL);
 460         int sbPos    = stc->GetScrollPos(wxHORIZONTAL);
 461         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 462             stc->SetScrollbar(wxHORIZONTAL, sbPos, pageWidth, horizEnd);
 463             modified = true;
 464             if (scrollWidth < pageWidth) {
 465                 HorizontalScrollTo(0);
 466             }
 467         }
 468     }
 469     else { // otherwise use the one that's been given to us
 470         int sbMax    = stc->m_hScrollBar->GetRange();
 471         int sbThumb  = stc->m_hScrollBar->GetPageSize();
 472         int sbPos    = stc->m_hScrollBar->GetThumbPosition();
 473         if ((sbMax != horizEnd) || (sbThumb != pageWidth) || (sbPos != 0)) {
 474             stc->m_hScrollBar->SetScrollbar(sbPos, pageWidth, horizEnd, pageWidth);
 475             modified = true;
 476             if (scrollWidth < pageWidth) {
 477                 HorizontalScrollTo(0);
 478             }
 479         }
 480     }
 481
 482     return modified;
 483 }
 484
 485
 486 void ScintillaWX::NotifyChange() {
 487     stc->NotifyChange();
 488 }
 489
 490
 491 void ScintillaWX::NotifyParent(SCNotification scn) {
 492     stc->NotifyParent(&scn);
 493 }
 494
 495
 496 // This method is overloaded from ScintillaBase in order to prevent the
 497 // AutoComplete window from being destroyed when it gets the focus.  There is
 498 // a side effect that the AutoComp will also not be destroyed when switching
 499 // to another window, but I think that is okay.
 500 void ScintillaWX::CancelModes() {
 501     if (! focusEvent)
 502         AutoCompleteCancel();
 503     ct.CallTipCancel();
 504     Editor::CancelModes();
 505 }
 506
 507
 508
 509 void ScintillaWX::Copy() {
 510     if (currentPos != anchor) {
 511         SelectionText st;
 512         CopySelectionRange(&st);
 513         CopyToClipboard(st);
 514     }
 515 }
 516
 517
 518 void ScintillaWX::Paste() {
 519     pdoc->BeginUndoAction();
 520     ClearSelection();
 521
 522 #if wxUSE_DATAOBJ
 523     wxTextDataObject data;
 524     bool gotData = false;
 525
 526     wxTheClipboard->UsePrimarySelection(false);
 527     if (wxTheClipboard->Open()) {
 528         gotData = wxTheClipboard->GetData(data);
 529         wxTheClipboard->Close();
 530     }
 531     if (gotData) {
 532         wxString   text = wxTextBuffer::Translate(data.GetText(),
 533                                                   wxConvertEOLMode(pdoc->eolMode));
 534         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 535
 536 #if wxUSE_UNICODE
 537         // free up the old character buffer in case the text is real big
 538         data.SetText(wxEmptyString);
 539         text = wxEmptyString;
 540 #endif
 541         int len = strlen(buf);
 542         pdoc->InsertString(currentPos, buf, len);
 543         SetEmptySelection(currentPos + len);
 544     }
 545 #endif // wxUSE_DATAOBJ
 546
 547     pdoc->EndUndoAction();
 548     NotifyChange();
 549     Redraw();
 550 }
 551
 552
 553 void ScintillaWX::CopyToClipboard(const SelectionText& st) {
 554 #if wxUSE_CLIPBOARD
 555     wxTheClipboard->UsePrimarySelection(false);
 556     if (wxTheClipboard->Open()) {
 557         wxString text = wxTextBuffer::Translate(stc2wx(st.s, st.len-1));
 558         wxTheClipboard->SetData(new wxTextDataObject(text));
 559         wxTheClipboard->Close();
 560     }
 561 #else
 562     wxUnusedVar(st);
 563 #endif // wxUSE_CLIPBOARD
 564 }
 565
 566
 567 bool ScintillaWX::CanPaste() {
 568 #if wxUSE_CLIPBOARD
 569     bool canPaste = false;
 570     bool didOpen;
 571
 572     if (Editor::CanPaste()) {
 573         wxTheClipboard->UsePrimarySelection(false);
 574         didOpen = !wxTheClipboard->IsOpened();
 575         if ( didOpen )
 576             wxTheClipboard->Open();
 577
 578         if (wxTheClipboard->IsOpened()) {
 579             canPaste = wxTheClipboard->IsSupported(wxUSE_UNICODE ? wxDF_UNICODETEXT : wxDF_TEXT);
 580             if (didOpen)
 581                 wxTheClipboard->Close();
 582         }
 583     }
 584     return canPaste;
 585 #else
 586     return false;
 587 #endif // wxUSE_CLIPBOARD
 588 }
 589
 590 void ScintillaWX::CreateCallTipWindow(PRectangle) {
 591     if (! ct.wCallTip.Created() ) {
 592         ct.wCallTip = new wxSTCCallTip(stc, &ct, this);
 593         ct.wDraw = ct.wCallTip;
 594     }
 595 }
 596
 597
 598 void ScintillaWX::AddToPopUp(const char *label, int cmd, bool enabled) {
 599     if (!label[0])
 600         ((wxMenu*)popup.GetID())->AppendSeparator();
 601     else
 602         ((wxMenu*)popup.GetID())->Append(cmd, wxGetTranslation(stc2wx(label)));
 603
 604     if (!enabled)
 605         ((wxMenu*)popup.GetID())->Enable(cmd, enabled);
 606 }
 607
 608
 609 // This is called by the Editor base class whenever something is selected.
 610 // For wxGTK we can put this text in the primary selection and then other apps
 611 // can paste with the middle button.
 612 void ScintillaWX::ClaimSelection() {
 613 #ifdef __WXGTK__
 614     // Put the selected text in the PRIMARY selection
 615     if (currentPos != anchor) {
 616         SelectionText st;
 617         CopySelectionRange(&st);
 618         wxTheClipboard->UsePrimarySelection(true);
 619         if (wxTheClipboard->Open()) {
 620             wxString text = stc2wx(st.s, st.len);
 621             wxTheClipboard->SetData(new wxTextDataObject(text));
 622             wxTheClipboard->Close();
 623         }
 624         wxTheClipboard->UsePrimarySelection(false);
 625     }
 626 #endif
 627 }
 628
 629
 630 void ScintillaWX::UpdateSystemCaret() {
 631 #ifdef __WXMSW__
 632     if (hasFocus) {
 633         if (HasCaretSizeChanged()) {
 634             DestroySystemCaret();
 635             CreateSystemCaret();
 636         }
 637         Point pos = LocationFromPosition(currentPos);
 638         ::SetCaretPos(pos.x, pos.y);
 639     }
 640 #endif
 641 }
 642
 643
 644 bool ScintillaWX::HasCaretSizeChanged() {
 645 #ifdef __WXMSW__
 646     if (( (0 != vs.caretWidth) && (sysCaretWidth != vs.caretWidth) )
 647         || (0 != vs.lineHeight) && (sysCaretHeight != vs.lineHeight)) {
 648         return true;
 649     }
 650 #endif
 651     return false;
 652 }
 653
 654 bool ScintillaWX::CreateSystemCaret() {
 655 #ifdef __WXMSW__
 656     sysCaretWidth = vs.caretWidth;
 657     if (0 == sysCaretWidth) {
 658         sysCaretWidth = 1;
 659     }
 660     sysCaretHeight = vs.lineHeight;
 661     int bitmapSize = (((sysCaretWidth + 15) & ~15) >> 3) * sysCaretHeight;
 662     char *bits = new char[bitmapSize];
 663     memset(bits, 0, bitmapSize);
 664     sysCaretBitmap = ::CreateBitmap(sysCaretWidth, sysCaretHeight, 1,
 665                                     1, reinterpret_cast<BYTE *>(bits));
 666     delete [] bits;
 667     BOOL retval = ::CreateCaret(GetHwndOf(stc), sysCaretBitmap,
 668                                 sysCaretWidth, sysCaretHeight);
 669     ::ShowCaret(GetHwndOf(stc));
 670     return retval != 0;
 671 #else
 672     return false;
 673 #endif
 674 }
 675
 676 bool ScintillaWX::DestroySystemCaret() {
 677 #ifdef __WXMSW__
 678     ::HideCaret(GetHwndOf(stc));
 679     BOOL retval = ::DestroyCaret();
 680     if (sysCaretBitmap) {
 681         ::DeleteObject(sysCaretBitmap);
 682         sysCaretBitmap = 0;
 683     }
 684     return retval != 0;
 685 #else
 686     return false;
 687 #endif
 688 }
 689
 690
 691 //----------------------------------------------------------------------
 692
 693
 694 sptr_t ScintillaWX::DefWndProc(unsigned int /*iMessage*/, uptr_t /*wParam*/, sptr_t /*lParam*/) {
 695     return 0;
 696 }
 697
 698 sptr_t ScintillaWX::WndProc(unsigned int iMessage, uptr_t wParam, sptr_t lParam) {
 699       switch (iMessage) {
 700       case SCI_CALLTIPSHOW: {
 701           // NOTE: This is copied here from scintilla/src/ScintillaBase.cxx
 702           // because of the little tweak that needs done below for wxGTK.
 703           // When updating new versions double check that this is still
 704           // needed, and that any new code there is copied here too.
 705           Point pt = LocationFromPosition(wParam);
 706           char* defn = reinterpret_cast<char *>(lParam);
 707           AutoCompleteCancel();
 708           pt.y += vs.lineHeight;
 709           PRectangle rc = ct.CallTipStart(currentPos, pt,
 710                                           defn,
 711                                           vs.styles[STYLE_DEFAULT].fontName,
 712                                           vs.styles[STYLE_DEFAULT].sizeZoomed,
 713                                           CodePage(),
 714                                           vs.styles[STYLE_DEFAULT].characterSet,
 715                                           wMain);
 716           // If the call-tip window would be out of the client
 717           // space, adjust so it displays above the text.
 718           PRectangle rcClient = GetClientRectangle();
 719           if (rc.bottom > rcClient.bottom) {
 720 #ifdef __WXGTK__
 721               int offset = int(vs.lineHeight * 1.25)  + rc.Height();
 722 #else
 723               int offset = vs.lineHeight + rc.Height();
 724 #endif
 725               rc.top -= offset;
 726               rc.bottom -= offset;
 727           }
 728           // Now display the window.
 729           CreateCallTipWindow(rc);
 730           ct.wCallTip.SetPositionRelative(rc, wMain);
 731           ct.wCallTip.Show();
 732           break;
 733       }
 734
 735 #ifdef SCI_LEXER
 736       case SCI_LOADLEXERLIBRARY:
 737             LexerManager::GetInstance()->Load((const char*)lParam);
 738             break;
 739 #endif
 740
 741       default:
 742           return ScintillaBase::WndProc(iMessage, wParam, lParam);
 743       }
 744       return 0;
 745 }
 746
 747
 748
 749 //----------------------------------------------------------------------
 750 // Event delegates
 751
 752 void ScintillaWX::DoPaint(wxDC* dc, wxRect rect) {
 753
 754     paintState = painting;
 755     Surface* surfaceWindow = Surface::Allocate();
 756     surfaceWindow->Init(dc, wMain.GetID());
 757     rcPaint = PRectangleFromwxRect(rect);
 758     PRectangle rcClient = GetClientRectangle();
 759     paintingAllText = rcPaint.Contains(rcClient);
 760
 761     ClipChildren(*dc, rcPaint);
 762     Paint(surfaceWindow, rcPaint);
 763
 764     delete surfaceWindow;
 765     if (paintState == paintAbandoned) {
 766         // Painting area was insufficient to cover new styling or brace
 767         // highlight positions
 768         FullPaint();
 769     }
 770     paintState = notPainting;
 771 }
 772
 773
 774 void ScintillaWX::DoHScroll(int type, int pos) {
 775     int xPos = xOffset;
 776     PRectangle rcText = GetTextRectangle();
 777     int pageWidth = rcText.Width() * 2 / 3;
 778     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 779         xPos -= H_SCROLL_STEP;
 780     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 781         xPos += H_SCROLL_STEP;
 782     else if (type == wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 783         xPos -= pageWidth;
 784     else if (type == wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN) {
 785         xPos += pageWidth;
 786         if (xPos > scrollWidth - rcText.Width()) {
 787             xPos = scrollWidth - rcText.Width();
 788         }
 789     }
 790     else if (type == wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 791         xPos = 0;
 792     else if (type == wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 793         xPos = scrollWidth;
 794     else if (type == wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 795         xPos = pos;
 796
 797     HorizontalScrollTo(xPos);
 798 }
 799
 800 void ScintillaWX::DoVScroll(int type, int pos) {
 801     int topLineNew = topLine;
 802     if (type == wxEVT_SCROLLWIN_LINEUP || type == wxEVT_SCROLL_LINEUP)
 803         topLineNew -= 1;
 804     else if (type == wxEVT_SCROLLWIN_LINEDOWN || type == wxEVT_SCROLL_LINEDOWN)
 805         topLineNew += 1;
 806     else if (type ==  wxEVT_SCROLLWIN_PAGEUP || type == wxEVT_SCROLL_PAGEUP)
 807         topLineNew -= LinesToScroll();
 808     else if (type ==  wxEVT_SCROLLWIN_PAGEDOWN || type == wxEVT_SCROLL_PAGEDOWN)
 809         topLineNew += LinesToScroll();
 810     else if (type ==  wxEVT_SCROLLWIN_TOP || type == wxEVT_SCROLL_TOP)
 811         topLineNew = 0;
 812     else if (type ==  wxEVT_SCROLLWIN_BOTTOM || type == wxEVT_SCROLL_BOTTOM)
 813         topLineNew = MaxScrollPos();
 814     else if (type ==   wxEVT_SCROLLWIN_THUMBTRACK || type == wxEVT_SCROLL_THUMBTRACK)
 815         topLineNew = pos;
 816
 817     ScrollTo(topLineNew);
 818 }
 819
 820 void ScintillaWX::DoMouseWheel(int rotation, int delta,
 821                                int linesPerAction, int ctrlDown,
 822                                bool isPageScroll ) {
 823     int topLineNew = topLine;
 824     int lines;
 825
 826     if (ctrlDown) {  // Zoom the fonts if Ctrl key down
 827         if (rotation < 0) {
 828             KeyCommand(SCI_ZOOMIN);
 829         }
 830         else {
 831             KeyCommand(SCI_ZOOMOUT);
 832         }
 833     }
 834     else { // otherwise just scroll the window
 835         if ( !delta )
 836             delta = 120;
 837         wheelRotation += rotation;
 838         lines = wheelRotation / delta;
 839         wheelRotation -= lines * delta;
 840         if (lines != 0) {
 841             if (isPageScroll)
 842                 lines = lines * LinesOnScreen();  // lines is either +1 or -1
 843             else
 844                 lines *= linesPerAction;
 845             topLineNew -= lines;
 846             ScrollTo(topLineNew);
 847         }
 848     }
 849 }
 850
 851
 852 void ScintillaWX::DoSize(int WXUNUSED(width), int WXUNUSED(height)) {
 853     ChangeSize();
 854 }
 855
 856 void ScintillaWX::DoLoseFocus(){
 857     focusEvent = true;
 858     SetFocusState(false);
 859     focusEvent = false;
 860     DestroySystemCaret();
 861 }
 862
 863 void ScintillaWX::DoGainFocus(){
 864     focusEvent = true;
 865     SetFocusState(true);
 866     focusEvent = false;
 867     DestroySystemCaret();
 868     CreateSystemCaret();
 869 }
 870
 871 void ScintillaWX::DoSysColourChange() {
 872     InvalidateStyleData();
 873 }
 874
 875 void ScintillaWX::DoLeftButtonDown(Point pt, unsigned int curTime, bool shift, bool ctrl, bool alt) {
 876     ButtonDown(pt, curTime, shift, ctrl, alt);
 877 }
 878
 879 void ScintillaWX::DoLeftButtonUp(Point pt, unsigned int curTime, bool ctrl) {
 880     ButtonUp(pt, curTime, ctrl);
 881 #if wxUSE_DRAG_AND_DROP
 882     if (startDragTimer->IsRunning()) {
 883         startDragTimer->Stop();
 884         SetDragPosition(invalidPosition);
 885         SetEmptySelection(PositionFromLocation(pt));
 886         ShowCaretAtCurrentPosition();
 887     }
 888 #endif // wxUSE_DRAG_AND_DROP
 889 }
 890
 891 void ScintillaWX::DoLeftButtonMove(Point pt) {
 892     ButtonMove(pt);
 893 }
 894
 895 #ifdef __WXGTK__
 896 void ScintillaWX::DoMiddleButtonUp(Point pt) {
 897     // Set the current position to the mouse click point and
 898     // then paste in the PRIMARY selection, if any.  wxGTK only.
 899     int newPos = PositionFromLocation(pt);
 900     MovePositionTo(newPos, noSel, true);
 901
 902     pdoc->BeginUndoAction();
 903     wxTextDataObject data;
 904     bool gotData = false;
 905     wxTheClipboard->UsePrimarySelection(true);
 906     if (wxTheClipboard->Open()) {
 907         gotData = wxTheClipboard->GetData(data);
 908         wxTheClipboard->Close();
 909     }
 910     wxTheClipboard->UsePrimarySelection(false);
 911     if (gotData) {
 912         wxString   text = wxTextBuffer::Translate(data.GetText(),
 913                                                   wxConvertEOLMode(pdoc->eolMode));
 914         wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(text);
 915         int        len = strlen(buf);
 916         pdoc->InsertString(currentPos, buf, len);
 917         SetEmptySelection(currentPos + len);
 918     }
 919     pdoc->EndUndoAction();
 920     NotifyChange();
 921     Redraw();
 922
 923     ShowCaretAtCurrentPosition();
 924     EnsureCaretVisible();
 925 }
 926 #else
 927 void ScintillaWX::DoMiddleButtonUp(Point WXUNUSED(pt)) {
 928 }
 929 #endif
 930
 931
 932 void ScintillaWX::DoAddChar(int key) {
 933 #if wxUSE_UNICODE
 934     wxChar wszChars[2];
 935     wszChars[0] = (wxChar)key;
 936     wszChars[1] = 0;
 937     wxWX2MBbuf buf = (wxWX2MBbuf)wx2stc(wszChars);
 938     AddCharUTF((char*)buf.data(), strlen(buf));
 939 #else
 940     AddChar((char)key);
 941 #endif
 942 }
 943
 944
 945 int  ScintillaWX::DoKeyDown(const wxKeyEvent& evt, bool* consumed)
 946 {
 947     int key = evt.GetKeyCode();
 948     bool shift = evt.ShiftDown(),
 949          ctrl  = evt.ControlDown(),
 950          alt   = evt.AltDown();
 951
 952     if (ctrl && key >= 1 && key <= 26 && key != WXK_BACK)
 953         key += 'A' - 1;
 954
 955     switch (key) {
 956     case WXK_DOWN:              key = SCK_DOWN;     break;
 957     case WXK_UP:                key = SCK_UP;       break;
 958     case WXK_LEFT:              key = SCK_LEFT;     break;
 959     case WXK_RIGHT:             key = SCK_RIGHT;    break;
 960     case WXK_HOME:              key = SCK_HOME;     break;
 961     case WXK_END:               key = SCK_END;      break;
 962     case WXK_PAGEUP:            key = SCK_PRIOR;    break;
 963     case WXK_PAGEDOWN:          key = SCK_NEXT;     break;
 964     case WXK_NUMPAD_DOWN:       key = SCK_DOWN;     break;
 965     case WXK_NUMPAD_UP:         key = SCK_UP;       break;
 966     case WXK_NUMPAD_LEFT:       key = SCK_LEFT;     break;
 967     case WXK_NUMPAD_RIGHT:      key = SCK_RIGHT;    break;
 968     case WXK_NUMPAD_HOME:       key = SCK_HOME;     break;
 969     case WXK_NUMPAD_END:        key = SCK_END;      break;
 970     case WXK_NUMPAD_PAGEUP:     key = SCK_PRIOR;    break;
 971     case WXK_NUMPAD_PAGEDOWN:   key = SCK_NEXT;     break;
 972     case WXK_NUMPAD_DELETE:     key = SCK_DELETE;   break;
 973     case WXK_NUMPAD_INSERT:     key = SCK_INSERT;   break;
 974     case WXK_DELETE:            key = SCK_DELETE;   break;
 975     case WXK_INSERT:            key = SCK_INSERT;   break;
 976     case WXK_ESCAPE:            key = SCK_ESCAPE;   break;
 977     case WXK_BACK:              key = SCK_BACK;     break;
 978     case WXK_TAB:               key = SCK_TAB;      break;
 979     case WXK_NUMPAD_ENTER:      // fall through
 980     case WXK_RETURN:            key = SCK_RETURN;   break;
 981     case WXK_ADD:               // fall through
 982     case WXK_NUMPAD_ADD:        key = SCK_ADD;      break;
 983     case WXK_SUBTRACT:          // fall through
 984     case WXK_NUMPAD_SUBTRACT:   key = SCK_SUBTRACT; break;
 985     case WXK_DIVIDE:            // fall through
 986     case WXK_NUMPAD_DIVIDE:     key = SCK_DIVIDE;   break;
 987     case WXK_CONTROL:           key = 0; break;
 988     case WXK_ALT:               key = 0; break;
 989     case WXK_SHIFT:             key = 0; break;
 990     case WXK_MENU:              key = 0; break;
 991     }
 992
 993 #ifdef __WXMAC__
 994     if ( evt.MetaDown() ) {
 995         // check for a few common Mac Meta-key combos and remap them to Ctrl
 996         // for Scintilla
 997         switch ( key ) {
 998         case 'Z':       // Undo
 999         case 'X':       // Cut
1000         case 'C':       // Copy
1001         case 'V':       // Paste
1002         case 'A':       // Select All
1003             ctrl = true;
1004             break;
1005         }
1006     }
1007 #endif
1008
1009     int rv = KeyDown(key, shift, ctrl, alt, consumed);
1010
1011     if (key)
1012         return rv;
1013     else
1014         return 1;
1015 }
1016
1017
1018 void ScintillaWX::DoCommand(int ID) {
1019     Command(ID);
1020 }
1021
1022
1023 void ScintillaWX::DoContextMenu(Point pt) {
1024     if (displayPopupMenu)
1025         ContextMenu(pt);
1026 }
1027
1028 void ScintillaWX::DoOnListBox() {
1029     AutoCompleteCompleted();
1030 }
1031
1032
1033 void ScintillaWX::DoOnIdle(wxIdleEvent& evt) {
1034
1035     if ( Idle() )
1036         evt.RequestMore();
1037     else
1038         SetIdle(false);
1039 }
1040
1041 //----------------------------------------------------------------------
1042
1043 #if wxUSE_DRAG_AND_DROP
1044 bool ScintillaWX::DoDropText(long x, long y, const wxString& data) {
1045     SetDragPosition(invalidPosition);
1046
1047     wxString text = wxTextBuffer::Translate(data,
1048                                             wxConvertEOLMode(pdoc->eolMode));
1049
1050     // Send an event to allow the drag details to be changed
1051     wxStyledTextEvent evt(wxEVT_STC_DO_DROP, stc->GetId());
1052     evt.SetEventObject(stc);
1053     evt.SetDragResult(dragResult);
1054     evt.SetX(x);
1055     evt.SetY(y);
1056     evt.SetPosition(PositionFromLocation(Point(x,y)));
1057     evt.SetDragText(text);
1058     stc->GetEventHandler()->ProcessEvent(evt);
1059
1060     dragResult = evt.GetDragResult();
1061     if (dragResult == wxDragMove || dragResult == wxDragCopy) {
1062         DropAt(evt.GetPosition(),
1063                wx2stc(evt.GetDragText()),
1064                dragResult == wxDragMove,
1065                false); // TODO: rectangular?
1066         return true;
1067     }
1068     return false;
1069 }
1070
1071
1072 wxDragResult ScintillaWX::DoDragEnter(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), wxDragResult def) {
1073     dragResult = def;
1074     return dragResult;
1075 }
1076
1077
1078 wxDragResult ScintillaWX::DoDragOver(wxCoord x, wxCoord y, wxDragResult def) {
1079     SetDragPosition(PositionFromLocation(Point(x, y)));
1080
1081     // Send an event to allow the drag result to be changed
1082     wxStyledTextEvent evt(wxEVT_STC_DRAG_OVER, stc->GetId());
1083     evt.SetEventObject(stc);
1084     evt.SetDragResult(def);
1085     evt.SetX(x);
1086     evt.SetY(y);
1087     evt.SetPosition(PositionFromLocation(Point(x,y)));
1088     stc->GetEventHandler()->ProcessEvent(evt);
1089
1090     dragResult = evt.GetDragResult();
1091     return dragResult;
1092 }
1093
1094
1095 void ScintillaWX::DoDragLeave() {
1096     SetDragPosition(invalidPosition);
1097 }
1098 #endif // wxUSE_DRAG_AND_DROP
1099 //----------------------------------------------------------------------
1100
1101 // Force the whole window to be repainted
1102 void ScintillaWX::FullPaint() {
1103 #ifndef __WXMAC__
1104     stc->Refresh(false);
1105 #endif
1106     stc->Update();
1107 }
1108
1109
1110 void ScintillaWX::DoScrollToLine(int line) {
1111     ScrollTo(line);
1112 }
1113
1114
1115 void ScintillaWX::DoScrollToColumn(int column) {
1116     HorizontalScrollTo(column * vs.spaceWidth);
1117 }
1118
1119 // wxGTK doesn't appear to need this explicit clipping code any longer, but I
1120 // will leave it here commented out for a while just in case...
1121 void ScintillaWX::ClipChildren(wxDC& WXUNUSED(dc), PRectangle WXUNUSED(rect))
1122 {
1123 //     wxRegion rgn(wxRectFromPRectangle(rect));
1124 //     if (ac.Active()) {
1125 //         wxRect childRect = ((wxWindow*)ac.lb->GetID())->GetRect();
1126 //         rgn.Subtract(childRect);
1127 //     }
1128 //     if (ct.inCallTipMode) {
1129 //         wxSTCCallTip* tip = (wxSTCCallTip*)ct.wCallTip.GetID();
1130 //         wxRect childRect = tip->GetRect();
1131 // #if wxUSE_POPUPWIN
1132 //         childRect.SetPosition(tip->GetMyPosition());
1133 // #endif
1134 //         rgn.Subtract(childRect);
1135 //     }
1136 //     dc.SetClippingRegion(rgn);
1137 }
1138
1139
1140 void ScintillaWX::SetUseAntiAliasing(bool useAA) {
1141     vs.extraFontFlag = useAA;
1142     InvalidateStyleRedraw();
1143 }
1144
1145 bool ScintillaWX::GetUseAntiAliasing() {
1146     return vs.extraFontFlag;
1147 }
1148
1149 //----------------------------------------------------------------------
1150 //----------------------------------------------------------------------
1151
1152 #endif // wxUSE_STC