src/stc/PlatWX.cpp

   1 // Scintilla source code edit control
   2 // PlatWX.cxx - implementation of platform facilities on wxWindows
   3 // Copyright 1998-1999 by Neil Hodgson <neilh@scintilla.org>
   4 //                        Robin Dunn <robin@aldunn.com>
   5 // The License.txt file describes the conditions under which this software may be distributed.
   6
   7 #include <ctype.h>
   8
   9 #include "Platform.h"
  10 #include "wx/stc/stc.h"
  11
  12
  13 #ifdef __WXGTK__
  14 #include <gtk/gtk.h>
  15 #endif
  16
  17 Point Point::FromLong(long lpoint) {
  18     return Point(lpoint & 0xFFFF, lpoint >> 16);
  19 }
  20
  21 wxRect wxRectFromPRectangle(PRectangle prc) {
  22     wxRect rc(prc.left, prc.top,
  23               prc.right-prc.left, prc.bottom-prc.top);
  24     return rc;
  25 }
  26
  27 PRectangle PRectangleFromwxRect(wxRect rc) {
  28     return PRectangle(rc.GetLeft(), rc.GetTop(), rc.GetRight(), rc.GetBottom());
  29 }
  30
  31 Colour::Colour(long lcol) {
  32     co.Set(lcol & 0xff, (lcol >> 8) & 0xff, (lcol >> 16) & 0xff);
  33 }
  34
  35 Colour::Colour(unsigned int red, unsigned int green, unsigned int blue) {
  36     co.Set(red, green, blue);
  37 }
  38
  39 bool Colour::operator==(const Colour &other) const {
  40     return co == other.co;
  41 }
  42
  43 long Colour::AsLong() const {
  44     return (((long)co.Blue()  << 16) |
  45             ((long)co.Green() <<  8) |
  46             ((long)co.Red()));
  47 }
  48
  49 unsigned int Colour::GetRed() {
  50     return co.Red();
  51 }
  52
  53 unsigned int Colour::GetGreen() {
  54     return co.Green();
  55 }
  56
  57 unsigned int Colour::GetBlue() {
  58     return co.Blue();
  59 }
  60
  61 Palette::Palette() {
  62     used = 0;
  63     allowRealization = false;
  64 }
  65
  66 Palette::~Palette() {
  67     Release();
  68 }
  69
  70 void Palette::Release() {
  71     used = 0;
  72 }
  73
  74 // This method either adds a colour to the list of wanted colours (want==true)
  75 // or retrieves the allocated colour back to the ColourPair.
  76 // This is one method to make it easier to keep the code for wanting and retrieving in sync.
  77 void Palette::WantFind(ColourPair &cp, bool want) {
  78     if (want) {
  79         for (int i=0; i < used; i++) {
  80             if (entries[i].desired == cp.desired)
  81                 return;
  82         }
  83
  84         if (used < numEntries) {
  85             entries[used].desired = cp.desired;
  86             entries[used].allocated = cp.desired;
  87             used++;
  88         }
  89     } else {
  90         for (int i=0; i < used; i++) {
  91             if (entries[i].desired == cp.desired) {
  92                 cp.allocated = entries[i].allocated;
  93                 return;
  94             }
  95         }
  96         cp.allocated = cp.desired;
  97     }
  98 }
  99
 100 void Palette::Allocate(Window &) {
 101     if (allowRealization) {
 102     }
 103 }
 104
 105
 106 Font::Font() {
 107     id = 0;
 108     ascent = 0;
 109 }
 110
 111 Font::~Font() {
 112 }
 113
 114 void Font::Create(const char *faceName, int characterSet, int size, bool bold, bool italic) {
 115     Release();
 116     id = new wxFont(size,
 117                     wxDEFAULT,
 118                     italic ? wxITALIC :  wxNORMAL,
 119                     bold ? wxBOLD : wxNORMAL,
 120                     false,
 121                     faceName,
 122                     wxFONTENCODING_DEFAULT);
 123 }
 124
 125
 126 void Font::Release() {
 127     if (id)
 128         delete id;
 129     id = 0;
 130 }
 131
 132
 133 Surface::Surface() :
 134     hdc(0), hdcOwned(0), bitmap(0),
 135     x(0), y(0) {
 136 }
 137
 138 Surface::~Surface() {
 139     Release();
 140 }
 141
 142 void Surface::Release() {
 143     if (bitmap) {
 144         ((wxMemoryDC*)hdc)->SelectObject(wxNullBitmap);
 145         delete bitmap;
 146         bitmap = 0;
 147     }
 148     if (hdcOwned) {
 149         delete hdc;
 150         hdc = 0;
 151         hdcOwned = false;
 152     }
 153 }
 154
 155
 156 bool Surface::Initialised() {
 157     return hdc != 0;
 158 }
 159
 160 void Surface::Init() {
 161     Release();
 162     hdc = new wxMemoryDC();
 163     hdcOwned = true;
 164     // **** ::SetTextAlign(hdc, TA_BASELINE);
 165 }
 166
 167 void Surface::Init(SurfaceID hdc_) {
 168     Release();
 169     hdc = hdc_;
 170     // **** ::SetTextAlign(hdc, TA_BASELINE);
 171 }
 172
 173 void Surface::InitPixMap(int width, int height, Surface *surface_) {
 174     Release();
 175     hdc = new wxMemoryDC(surface_->hdc);
 176     hdcOwned = true;
 177     bitmap = new wxBitmap(width, height);
 178     ((wxMemoryDC*)hdc)->SelectObject(*bitmap);
 179     // **** ::SetTextAlign(hdc, TA_BASELINE);
 180 }
 181
 182 void Surface::PenColour(Colour fore) {
 183     hdc->SetPen(wxPen(fore.co, 1, wxSOLID));
 184 }
 185
 186 void Surface::BrushColor(Colour back) {
 187     hdc->SetBrush(wxBrush(back.co, wxSOLID));
 188 }
 189
 190 void Surface::SetFont(Font &font_) {
 191   if (font_.GetID()) {
 192       hdc->SetFont(*font_.GetID());
 193     }
 194 }
 195
 196 int Surface::LogPixelsY() {
 197     return hdc->GetPPI().y;
 198 }
 199
 200
 201 int Surface::DeviceHeightFont(int points) {
 202     return points * LogPixelsY() / 72;
 203 }
 204
 205
 206 void Surface::MoveTo(int x_, int y_) {
 207     x = x_;
 208     y = y_;
 209 }
 210
 211 void Surface::LineTo(int x_, int y_) {
 212     hdc->DrawLine(x,y, x_,y_);
 213     x = x_;
 214     y = y_;
 215 }
 216
 217 void Surface::Polygon(Point *pts, int npts, Colour fore,
 218                       Colour back) {
 219     PenColour(fore);
 220     BrushColor(back);
 221     hdc->DrawPolygon(npts, (wxPoint*)pts);
 222 }
 223
 224 void Surface::RectangleDraw(PRectangle rc, Colour fore, Colour back) {
 225     PenColour(fore);
 226     BrushColor(back);
 227     hdc->DrawRectangle(wxRectFromPRectangle(rc));
 228 }
 229
 230 void Surface::FillRectangle(PRectangle rc, Colour back) {
 231     BrushColor(back);
 232     hdc->SetPen(*wxTRANSPARENT_PEN);
 233     hdc->DrawRectangle(wxRectFromPRectangle(rc));
 234 }
 235
 236 void Surface::FillRectangle(PRectangle rc, Surface &surfacePattern) {
 237     wxBrush br;
 238     if (surfacePattern.bitmap)
 239         br = wxBrush(*surfacePattern.bitmap);
 240     else    // Something is wrong so display in red
 241         br = wxBrush(*wxRED, wxSOLID);
 242     hdc->SetPen(*wxTRANSPARENT_PEN);
 243     hdc->SetBrush(br);
 244     hdc->DrawRectangle(wxRectFromPRectangle(rc));
 245 }
 246
 247 void Surface::RoundedRectangle(PRectangle rc, Colour fore, Colour back) {
 248     PenColour(fore);
 249     BrushColor(back);
 250     hdc->DrawRoundedRectangle(wxRectFromPRectangle(rc), 4);
 251 }
 252
 253 void Surface::Ellipse(PRectangle rc, Colour fore, Colour back) {
 254     PenColour(fore);
 255     BrushColor(back);
 256     hdc->DrawEllipse(wxRectFromPRectangle(rc));
 257 }
 258
 259 void Surface::Copy(PRectangle rc, Point from, Surface &surfaceSource) {
 260     wxRect r = wxRectFromPRectangle(rc);
 261     hdc->Blit(r.x, r.y, r.width, r.height,
 262               surfaceSource.hdc, from.x, from.y, wxCOPY);
 263 }
 264
 265 void Surface::DrawText(PRectangle rc, Font &font, int ybase,
 266                        const char *s, int len, Colour fore, Colour back) {
 267     SetFont(font);
 268     hdc->SetTextForeground(fore.co);
 269     hdc->SetTextBackground(back.co);
 270     FillRectangle(rc, back);
 271
 272     // ybase is where the baseline should be, but wxWin uses the upper left
 273     // corner, so I need to calculate the real position for the text...
 274     hdc->DrawText(wxString(s, len), rc.left, ybase - font.ascent);
 275 }
 276
 277 void Surface::DrawTextClipped(PRectangle rc, Font &font, int ybase, const char *s, int len, Colour fore, Colour back) {
 278     SetFont(font);
 279     hdc->SetTextForeground(fore.co);
 280     hdc->SetTextBackground(back.co);
 281     FillRectangle(rc, back);
 282     hdc->SetClippingRegion(wxRectFromPRectangle(rc));
 283
 284     // see comments above
 285     hdc->DrawText(wxString(s, len), rc.left, ybase - font.ascent);
 286     hdc->DestroyClippingRegion();
 287 }
 288
 289 int Surface::WidthText(Font &font, const char *s, int len) {
 290     SetFont(font);
 291     int w;
 292     int h;
 293     hdc->GetTextExtent(wxString(s, len), &w, &h);
 294     return w;
 295 }
 296
 297 void Surface::MeasureWidths(Font &font, const char *s, int len, int *positions) {
 298     SetFont(font);
 299     int totalWidth = 0;
 300     for (int i=0; i<len; i++) {
 301         int w;
 302         int h;
 303         hdc->GetTextExtent(s[i], &w, &h);
 304         totalWidth += w;
 305         positions[i] = totalWidth;
 306     }
 307 }
 308
 309 int Surface::WidthChar(Font &font, char ch) {
 310     SetFont(font);
 311     int w;
 312     int h;
 313     hdc->GetTextExtent(ch, &w, &h);
 314     return w;
 315 }
 316
 317 #define EXTENT_TEST " `~!@#$%^&*()-_=+\\|[]{};:\"\'<,>.?/1234567890abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
 318
 319 int Surface::Ascent(Font &font) {
 320     SetFont(font);
 321     int w, h, d, e;
 322     hdc->GetTextExtent(EXTENT_TEST, &w, &h, &d, &e);
 323     font.ascent = h - d;
 324     return font.ascent;
 325 }
 326
 327 int Surface::Descent(Font &font) {
 328     SetFont(font);
 329     int w, h, d, e;
 330     hdc->GetTextExtent(EXTENT_TEST, &w, &h, &d, &e);
 331     return d;
 332 }
 333
 334 int Surface::InternalLeading(Font &font) {
 335     return 0;
 336 }
 337
 338 int Surface::ExternalLeading(Font &font) {
 339     SetFont(font);
 340     int w, h, d, e;
 341     hdc->GetTextExtent(EXTENT_TEST, &w, &h, &d, &e);
 342     return e;
 343 }
 344
 345 int Surface::Height(Font &font) {
 346     SetFont(font);
 347     return hdc->GetCharHeight();
 348 }
 349
 350 int Surface::AverageCharWidth(Font &font) {
 351     SetFont(font);
 352     return hdc->GetCharWidth();
 353 }
 354
 355 int Surface::SetPalette(Palette *pal, bool inBackGround) {
 356     return 0;  // **** figure out what to do with palettes...
 357 }
 358
 359 void Surface::SetClip(PRectangle rc) {
 360     hdc->SetClippingRegion(wxRectFromPRectangle(rc));
 361 }
 362
 363 void Surface::FlushCachedState() {
 364 }
 365
 366 Window::~Window() {
 367 }
 368
 369 void Window::Destroy() {
 370     if (id)
 371         id->Destroy();
 372     id = 0;
 373 }
 374
 375 bool Window::HasFocus() {
 376     return wxWindow::FindFocus() == id;
 377 }
 378
 379 PRectangle Window::GetPosition() {
 380     wxRect rc(id->GetPosition(), id->GetSize());
 381     return PRectangleFromwxRect(rc);
 382 }
 383
 384 void Window::SetPosition(PRectangle rc) {
 385     wxRect r = wxRectFromPRectangle(rc);
 386     id->SetSize(r);
 387 }
 388
 389 void Window::SetPositionRelative(PRectangle rc, Window) {
 390     SetPosition(rc);  // ????
 391 }
 392
 393 PRectangle Window::GetClientPosition() {
 394     wxSize sz = id->GetClientSize();
 395     return  PRectangle(0, 0, sz.x, sz.y);
 396 }
 397
 398 void Window::Show(bool show) {
 399     id->Show(show);
 400 }
 401
 402 void Window::InvalidateAll() {
 403     id->Refresh(false);
 404 }
 405
 406 void Window::InvalidateRectangle(PRectangle rc) {
 407     wxRect r = wxRectFromPRectangle(rc);
 408     id->Refresh(false, &r);
 409 }
 410
 411 void Window::SetFont(Font &font) {
 412     id->SetFont(*font.GetID());
 413 }
 414
 415 void Window::SetCursor(Cursor curs) {
 416     int cursorId;
 417
 418     switch (curs) {
 419     case cursorText:
 420         cursorId = wxCURSOR_IBEAM;
 421         break;
 422     case cursorArrow:
 423         cursorId = wxCURSOR_ARROW;
 424         break;
 425     case cursorUp:
 426         cursorId = wxCURSOR_ARROW; // ** no up arrow...  wxCURSOR_UPARROW;
 427         break;
 428     case cursorWait:
 429         cursorId = wxCURSOR_WAIT;
 430         break;
 431     case cursorHoriz:
 432         cursorId = wxCURSOR_SIZEWE;
 433         break;
 434     case cursorVert:
 435         cursorId = wxCURSOR_SIZENS;
 436         break;
 437     case cursorReverseArrow:
 438         cursorId = wxCURSOR_POINT_RIGHT;
 439         break;
 440     default:
 441         cursorId = wxCURSOR_ARROW;
 442         break;
 443     }
 444
 445     id->SetCursor(wxCursor(cursorId));
 446 }
 447
 448
 449 void Window::SetTitle(const char *s) {
 450     id->SetTitle(s);
 451 }
 452
 453
 454 class wxSTCListBox : public wxListBox {
 455 public:
 456     wxSTCListBox(wxWindow* parent, wxWindowID id)
 457         : wxListBox(parent, id, wxDefaultPosition, wxDefaultSize,
 458                     0, NULL, wxLB_SINGLE | wxLB_SORT | wxSIMPLE_BORDER)
 459         {}
 460
 461     void OnFocus(wxFocusEvent& event) {
 462         GetParent()->SetFocus();
 463         event.Skip();
 464     }
 465
 466 #ifdef __WXGTK__
 467     void DoSetFirstItem(int n);
 468 #endif
 469
 470 private:
 471     DECLARE_EVENT_TABLE()
 472 };
 473
 474 BEGIN_EVENT_TABLE(wxSTCListBox, wxListBox)
 475     EVT_SET_FOCUS(wxSTCListBox::OnFocus)
 476 END_EVENT_TABLE()
 477
 478
 479
 480
 481 #ifdef __WXGTK__
 482     // This can be removed after 2.2.2 I think
 483 void wxSTCListBox::DoSetFirstItem( int n )
 484 {
 485     wxCHECK_RET( m_list, wxT("invalid listbox") );
 486
 487     if (gdk_pointer_is_grabbed () && GTK_WIDGET_HAS_GRAB (m_list))
 488         return;
 489
 490     // terribly efficient
 491     const gchar *vadjustment_key = "gtk-vadjustment";
 492     guint vadjustment_key_id = g_quark_from_static_string (vadjustment_key);
 493
 494     GtkAdjustment *adjustment =
 495        (GtkAdjustment*) gtk_object_get_data_by_id (GTK_OBJECT (m_list), vadjustment_key_id);
 496     wxCHECK_RET( adjustment, wxT("invalid listbox code") );
 497
 498     GList *target = g_list_nth( m_list->children, n );
 499     wxCHECK_RET( target, wxT("invalid listbox index") );
 500
 501     GtkWidget *item = GTK_WIDGET(target->data);
 502     wxCHECK_RET( item, wxT("invalid listbox code") );
 503
 504     // find the last item before this one which is already realized
 505     size_t nItemsBefore;
 506     for ( nItemsBefore = 0; item && (item->allocation.y == -1); nItemsBefore++ )
 507     {
 508         target = target->prev;
 509         if ( !target )
 510         {
 511             // nothing we can do if there are no allocated items yet
 512             return;
 513         }
 514
 515         item = GTK_WIDGET(target->data);
 516     }
 517
 518     gtk_adjustment_set_value(adjustment,
 519                              item->allocation.y +
 520                                 nItemsBefore*item->allocation.height);
 521 }
 522 #endif
 523
 524
 525 ListBox::ListBox() {
 526 }
 527
 528 ListBox::~ListBox() {
 529 }
 530
 531 void ListBox::Create(Window &parent, int ctrlID) {
 532     id = new wxSTCListBox(parent.id, ctrlID);
 533 //    id = new wxListBox(parent.id, ctrlID,  wxDefaultPosition, wxDefaultSize,
 534 //                       0, NULL, wxLB_SINGLE | wxLB_SORT | wxSIMPLE_BORDER);
 535 }
 536
 537 PRectangle ListBox::GetDesiredRect() {
 538     wxSize sz = ((wxListBox*)id)->GetBestSize();
 539     PRectangle rc;
 540     rc.top = 0;
 541     rc.left = 0;
 542     if (sz.x > 150)   // TODO: A better way to determine these max sizes
 543         sz.x = 150;
 544     if (sz.y > 100)
 545         sz.y = 100;
 546     rc.right = sz.x;
 547     rc.bottom = sz.y;
 548
 549     return rc;
 550 }
 551
 552 void ListBox::SetAverageCharWidth(int width) {
 553     aveCharWidth = width;
 554 }
 555
 556 void ListBox::SetFont(Font &font) {
 557     Window::SetFont(font);
 558 }
 559
 560 void ListBox::Clear() {
 561     ((wxListBox*)id)->Clear();
 562 }
 563
 564 void ListBox::Append(char *s) {
 565     ((wxListBox*)id)->Append(s);
 566 }
 567
 568 int ListBox::Length() {
 569     return ((wxListBox*)id)->GetCount();
 570 }
 571
 572 void ListBox::Select(int n) {
 573     ((wxListBox*)id)->SetSelection(n);
 574 #ifdef __WXGTK__
 575     if (n > 4)
 576         n = n - 4;
 577     else
 578         n = 1;
 579     ((wxListBox*)id)->SetFirstItem(n);
 580 #endif
 581 }
 582
 583 int ListBox::GetSelection() {
 584     return ((wxListBox*)id)->GetSelection();
 585 }
 586
 587 int ListBox::Find(const char *prefix) {
 588     if (prefix) {
 589         for (int x=0; x < ((wxListBox*)id)->GetCount(); x++) {
 590             wxString text = ((wxListBox*)id)->GetString(x);
 591             if (text.StartsWith(prefix))
 592                 return x;
 593         }
 594     }
 595     return -1;
 596 }
 597
 598 void ListBox::GetValue(int n, char *value, int len) {
 599     wxString text = ((wxListBox*)id)->GetString(n);
 600     strncpy(value, text.c_str(), len);
 601     value[len-1] = '\0';
 602 }
 603
 604 void ListBox::Sort() {
 605     // wxWindows keeps sorted so no need to sort
 606 }
 607
 608
 609 Menu::Menu() : id(0) {
 610 }
 611
 612 void Menu::CreatePopUp() {
 613     Destroy();
 614     id = new wxMenu();
 615 }
 616
 617 void Menu::Destroy() {
 618     if (id)
 619         delete id;
 620     id = 0;
 621 }
 622
 623 void Menu::Show(Point pt, Window &w) {
 624     w.GetID()->PopupMenu(id, pt.x - 4, pt.y);
 625     Destroy();
 626 }
 627
 628
 629 Colour Platform::Chrome() {
 630     wxColour c;
 631     c = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE);
 632     return Colour(c.Red(), c.Green(), c.Blue());
 633 }
 634
 635 Colour Platform::ChromeHighlight() {
 636     wxColour c;
 637     c = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHIGHLIGHT);
 638     return Colour(c.Red(), c.Green(), c.Blue());
 639 }
 640
 641 const char *Platform::DefaultFont() {
 642     return wxNORMAL_FONT->GetFaceName();
 643 }
 644
 645 int Platform::DefaultFontSize() {
 646     return 8;
 647 }
 648
 649 unsigned int Platform::DoubleClickTime() {
 650     return 500;   // **** ::GetDoubleClickTime();
 651 }
 652
 653 void Platform::DebugDisplay(const char *s) {
 654     wxLogDebug(s);
 655 }
 656
 657 bool Platform::IsKeyDown(int key) {
 658     return false;  // I don't think we'll need this.
 659 }
 660
 661 long Platform::SendScintilla(WindowID w,
 662                              unsigned int msg,
 663                              unsigned long wParam,
 664                              long lParam) {
 665
 666     wxStyledTextCtrl* stc = (wxStyledTextCtrl*)w;
 667     return stc->SendMsg(msg, wParam, lParam);
 668 }
 669
 670
 671 // These are utility functions not really tied to a platform
 672
 673 int Platform::Minimum(int a, int b) {
 674     if (a < b)
 675         return a;
 676     else
 677         return b;
 678 }
 679
 680 int Platform::Maximum(int a, int b) {
 681     if (a > b)
 682         return a;
 683     else
 684         return b;
 685 }
 686
 687 #define TRACE
 688
 689 void Platform::DebugPrintf(const char *format, ...) {
 690 #ifdef TRACE
 691     char buffer[2000];
 692     va_list pArguments;
 693     va_start(pArguments, format);
 694     vsprintf(buffer,format,pArguments);
 695     va_end(pArguments);
 696     Platform::DebugDisplay(buffer);
 697 #endif
 698 }
 699
 700 int Platform::Clamp(int val, int minVal, int maxVal) {
 701     if (val > maxVal)
 702         val = maxVal;
 703     if (val < minVal)
 704         val = minVal;
 705     return val;
 706 }
 707
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