| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: textctrl.cpp |
| 3 | // Purpose: wxTextCtrl |
| 4 | // Author: David Webster |
| 5 | // Modified by: |
| 6 | // Created: 10/17/99 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) David Webster |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // ---------------------------------------------------------------------------- |
| 13 | // headers |
| 14 | // ---------------------------------------------------------------------------- |
| 15 | |
| 16 | // For compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #ifndef WX_PRECOMP |
| 20 | #include "wx/textctrl.h" |
| 21 | #include "wx/settings.h" |
| 22 | #include "wx/brush.h" |
| 23 | #include "wx/utils.h" |
| 24 | #include "wx/log.h" |
| 25 | #endif |
| 26 | |
| 27 | #if wxUSE_CLIPBOARD |
| 28 | #include "wx/app.h" |
| 29 | #include "wx/clipbrd.h" |
| 30 | #endif |
| 31 | |
| 32 | #include "wx/textfile.h" |
| 33 | |
| 34 | #include "wx/os2/private.h" |
| 35 | |
| 36 | #include <string.h> |
| 37 | #include <stdlib.h> |
| 38 | #include <sys/types.h> |
| 39 | |
| 40 | #if wxUSE_IOSTREAMH |
| 41 | # include <fstream.h> |
| 42 | #else |
| 43 | # include <fstream> |
| 44 | #endif |
| 45 | |
| 46 | |
| 47 | // ---------------------------------------------------------------------------- |
| 48 | // event tables and other macros |
| 49 | // ---------------------------------------------------------------------------- |
| 50 | |
| 51 | IMPLEMENT_DYNAMIC_CLASS(wxTextCtrl, wxControl) |
| 52 | |
| 53 | BEGIN_EVENT_TABLE(wxTextCtrl, wxControl) |
| 54 | EVT_CHAR(wxTextCtrl::OnChar) |
| 55 | EVT_DROP_FILES(wxTextCtrl::OnDropFiles) |
| 56 | |
| 57 | EVT_MENU(wxID_CUT, wxTextCtrl::OnCut) |
| 58 | EVT_MENU(wxID_COPY, wxTextCtrl::OnCopy) |
| 59 | EVT_MENU(wxID_PASTE, wxTextCtrl::OnPaste) |
| 60 | EVT_MENU(wxID_UNDO, wxTextCtrl::OnUndo) |
| 61 | EVT_MENU(wxID_REDO, wxTextCtrl::OnRedo) |
| 62 | |
| 63 | EVT_UPDATE_UI(wxID_CUT, wxTextCtrl::OnUpdateCut) |
| 64 | EVT_UPDATE_UI(wxID_COPY, wxTextCtrl::OnUpdateCopy) |
| 65 | EVT_UPDATE_UI(wxID_PASTE, wxTextCtrl::OnUpdatePaste) |
| 66 | EVT_UPDATE_UI(wxID_UNDO, wxTextCtrl::OnUpdateUndo) |
| 67 | EVT_UPDATE_UI(wxID_REDO, wxTextCtrl::OnUpdateRedo) |
| 68 | END_EVENT_TABLE() |
| 69 | |
| 70 | |
| 71 | // ============================================================================ |
| 72 | // implementation |
| 73 | // ============================================================================ |
| 74 | |
| 75 | // ---------------------------------------------------------------------------- |
| 76 | // creation |
| 77 | // ---------------------------------------------------------------------------- |
| 78 | |
| 79 | wxTextCtrl::wxTextCtrl() |
| 80 | { |
| 81 | } |
| 82 | |
| 83 | bool wxTextCtrl::Create(wxWindow *parent, wxWindowID id, |
| 84 | const wxString& value, |
| 85 | const wxPoint& pos, |
| 86 | const wxSize& size, |
| 87 | long style, |
| 88 | #if wxUSE_VALIDATORS |
| 89 | const wxValidator& validator, |
| 90 | #endif |
| 91 | const wxString& name) |
| 92 | { |
| 93 | // base initialization |
| 94 | if ( !CreateBase(parent, id, pos, size, style, validator, name) ) |
| 95 | return FALSE; |
| 96 | |
| 97 | // Validator was set in CreateBase |
| 98 | //SetValidator(validator); |
| 99 | if ( parent ) |
| 100 | parent->AddChild(this); |
| 101 | |
| 102 | // set colours |
| 103 | SetupColours(); |
| 104 | |
| 105 | // translate wxWin style flags to MSW ones, checking for consistency while |
| 106 | // doing it |
| 107 | // TODO: |
| 108 | /* |
| 109 | long msStyle = ES_LEFT | WS_VISIBLE | WS_CHILD | WS_TABSTOP; |
| 110 | if ( m_windowStyle & wxTE_MULTILINE ) |
| 111 | { |
| 112 | wxASSERT_MSG( !(m_windowStyle & wxTE_PROCESS_ENTER), |
| 113 | wxT("wxTE_PROCESS_ENTER style is ignored for multiline " |
| 114 | "text controls (they always process it)") ); |
| 115 | |
| 116 | msStyle |= ES_MULTILINE | ES_WANTRETURN; |
| 117 | if ((m_windowStyle & wxTE_NO_VSCROLL) == 0) |
| 118 | msStyle |= WS_VSCROLL; |
| 119 | m_windowStyle |= wxTE_PROCESS_ENTER; |
| 120 | } |
| 121 | else |
| 122 | msStyle |= ES_AUTOHSCROLL; |
| 123 | |
| 124 | if (m_windowStyle & wxHSCROLL) |
| 125 | msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); |
| 126 | |
| 127 | if (m_windowStyle & wxTE_READONLY) |
| 128 | msStyle |= ES_READONLY; |
| 129 | |
| 130 | if (m_windowStyle & wxHSCROLL) |
| 131 | msStyle |= (WS_HSCROLL | ES_AUTOHSCROLL); |
| 132 | if (m_windowStyle & wxTE_PASSWORD) // hidden input |
| 133 | msStyle |= ES_PASSWORD; |
| 134 | |
| 135 | // we always want the characters and the arrows |
| 136 | m_lDlgCode = DLGC_WANTCHARS | DLGC_WANTARROWS; |
| 137 | |
| 138 | // we may have several different cases: |
| 139 | // 1. normal case: both TAB and ENTER are used for dialog navigation |
| 140 | // 2. ctrl which wants TAB for itself: ENTER is used to pass to the next |
| 141 | // control in the dialog |
| 142 | // 3. ctrl which wants ENTER for itself: TAB is used for dialog navigation |
| 143 | // 4. ctrl which wants both TAB and ENTER: Ctrl-ENTER is used to pass to |
| 144 | // the next control |
| 145 | if ( m_windowStyle & wxTE_PROCESS_ENTER ) |
| 146 | m_lDlgCode |= DLGC_WANTMESSAGE; |
| 147 | if ( m_windowStyle & wxTE_PROCESS_TAB ) |
| 148 | m_lDlgCode |= DLGC_WANTTAB; |
| 149 | |
| 150 | // do create the control - either an EDIT or RICHEDIT |
| 151 | const wxChar *windowClass = wxT("EDIT"); |
| 152 | |
| 153 | bool want3D; |
| 154 | WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D); |
| 155 | |
| 156 | // Even with extended styles, need to combine with WS_BORDER for them to |
| 157 | // look right. |
| 158 | if ( want3D || wxStyleHasBorder(m_windowStyle) ) |
| 159 | msStyle |= WS_BORDER; |
| 160 | |
| 161 | // NB: don't use pos and size as CreateWindowEx arguments because they |
| 162 | // might be -1 in which case we should use the default values (and |
| 163 | // SetSize called below takes care of it) |
| 164 | m_hWnd = (WXHWND)::CreateWindowEx(exStyle, |
| 165 | windowClass, |
| 166 | NULL, |
| 167 | msStyle, |
| 168 | 0, 0, 0, 0, |
| 169 | GetHwndOf(parent), |
| 170 | (HMENU)m_windowId, |
| 171 | wxGetInstance(), |
| 172 | NULL); |
| 173 | |
| 174 | wxCHECK_MSG( m_hWnd, FALSE, wxT("Failed to create text ctrl") ); |
| 175 | */ |
| 176 | SubclassWin(GetHWND()); |
| 177 | |
| 178 | // set font, position, size and initial value |
| 179 | wxFont& fontParent = parent->GetFont(); |
| 180 | if ( fontParent.Ok() ) |
| 181 | { |
| 182 | SetFont(fontParent); |
| 183 | } |
| 184 | else |
| 185 | { |
| 186 | SetFont(wxSystemSettings::GetSystemFont(wxSYS_SYSTEM_FONT)); |
| 187 | } |
| 188 | |
| 189 | SetSize(pos.x, pos.y, size.x, size.y); |
| 190 | |
| 191 | return TRUE; |
| 192 | } |
| 193 | |
| 194 | // Make sure the window style (etc.) reflects the HWND style (roughly) |
| 195 | void wxTextCtrl::AdoptAttributesFromHWND() |
| 196 | { |
| 197 | wxWindow::AdoptAttributesFromHWND(); |
| 198 | |
| 199 | HWND hWnd = GetHwnd(); |
| 200 | // TODO: |
| 201 | /* |
| 202 | long style = GetWindowLong(hWnd, GWL_STYLE); |
| 203 | |
| 204 | if (style & ES_MULTILINE) |
| 205 | m_windowStyle |= wxTE_MULTILINE; |
| 206 | if (style & ES_PASSWORD) |
| 207 | m_windowStyle |= wxTE_PASSWORD; |
| 208 | if (style & ES_READONLY) |
| 209 | m_windowStyle |= wxTE_READONLY; |
| 210 | if (style & ES_WANTRETURN) |
| 211 | m_windowStyle |= wxTE_PROCESS_ENTER; |
| 212 | */ |
| 213 | } |
| 214 | |
| 215 | void wxTextCtrl::SetupColours() |
| 216 | { |
| 217 | // FIXME why is bg colour not inherited from parent? |
| 218 | SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOW)); |
| 219 | SetForegroundColour(GetParent()->GetForegroundColour()); |
| 220 | } |
| 221 | |
| 222 | // ---------------------------------------------------------------------------- |
| 223 | // set/get the controls text |
| 224 | // ---------------------------------------------------------------------------- |
| 225 | |
| 226 | wxString wxTextCtrl::GetValue() const |
| 227 | { |
| 228 | return wxGetWindowText(GetHWND()); |
| 229 | } |
| 230 | |
| 231 | void wxTextCtrl::SetValue(const wxString& value) |
| 232 | { |
| 233 | // TODO: |
| 234 | /* |
| 235 | wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); |
| 236 | |
| 237 | SetWindowText(GetHwnd(), valueDos); |
| 238 | |
| 239 | AdjustSpaceLimit(); |
| 240 | */ |
| 241 | } |
| 242 | |
| 243 | void wxTextCtrl::WriteText(const wxString& value) |
| 244 | { |
| 245 | // TODO: |
| 246 | /* |
| 247 | wxString valueDos = wxTextFile::Translate(value, wxTextFileType_Dos); |
| 248 | |
| 249 | SendMessage(GetHwnd(), EM_REPLACESEL, 0, (LPARAM)valueDos.c_str()); |
| 250 | |
| 251 | AdjustSpaceLimit(); |
| 252 | */ |
| 253 | } |
| 254 | |
| 255 | void wxTextCtrl::AppendText(const wxString& text) |
| 256 | { |
| 257 | // TODO: |
| 258 | /* |
| 259 | SetInsertionPointEnd(); |
| 260 | WriteText(text); |
| 261 | */ |
| 262 | } |
| 263 | |
| 264 | void wxTextCtrl::Clear() |
| 265 | { |
| 266 | // SetWindowText(GetHwnd(), wxT("")); |
| 267 | } |
| 268 | |
| 269 | // ---------------------------------------------------------------------------- |
| 270 | // Clipboard operations |
| 271 | // ---------------------------------------------------------------------------- |
| 272 | |
| 273 | void wxTextCtrl::Copy() |
| 274 | { |
| 275 | if (CanCopy()) |
| 276 | { |
| 277 | HWND hWnd = GetHwnd(); |
| 278 | // SendMessage(hWnd, WM_COPY, 0, 0L); |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | void wxTextCtrl::Cut() |
| 283 | { |
| 284 | if (CanCut()) |
| 285 | { |
| 286 | HWND hWnd = GetHwnd(); |
| 287 | // SendMessage(hWnd, WM_CUT, 0, 0L); |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | void wxTextCtrl::Paste() |
| 292 | { |
| 293 | if (CanPaste()) |
| 294 | { |
| 295 | HWND hWnd = GetHwnd(); |
| 296 | // SendMessage(hWnd, WM_PASTE, 0, 0L); |
| 297 | } |
| 298 | } |
| 299 | |
| 300 | bool wxTextCtrl::CanCopy() const |
| 301 | { |
| 302 | // Can copy if there's a selection |
| 303 | long from = 0L; |
| 304 | long to = 0L; |
| 305 | // GetSelection(& from, & to); |
| 306 | return (from != to); |
| 307 | } |
| 308 | |
| 309 | bool wxTextCtrl::CanCut() const |
| 310 | { |
| 311 | // Can cut if there's a selection |
| 312 | long from = 0L; |
| 313 | long to = 0L; |
| 314 | // GetSelection(& from, & to); |
| 315 | return (from != to); |
| 316 | } |
| 317 | |
| 318 | bool wxTextCtrl::CanPaste() const |
| 319 | { |
| 320 | if (!IsEditable()) |
| 321 | return FALSE; |
| 322 | |
| 323 | // Standard edit control: check for straight text on clipboard |
| 324 | bool isTextAvailable = FALSE; |
| 325 | //TODO: |
| 326 | /* |
| 327 | if ( ::OpenClipboard(GetHwndOf(wxTheApp->GetTopWindow())) ) |
| 328 | { |
| 329 | isTextAvailable = (::IsClipboardFormatAvailable(CF_TEXT) != 0); |
| 330 | ::CloseClipboard(); |
| 331 | } |
| 332 | */ |
| 333 | return isTextAvailable; |
| 334 | } |
| 335 | |
| 336 | // ---------------------------------------------------------------------------- |
| 337 | // Accessors |
| 338 | // ---------------------------------------------------------------------------- |
| 339 | |
| 340 | void wxTextCtrl::SetEditable(bool editable) |
| 341 | { |
| 342 | HWND hWnd = GetHwnd(); |
| 343 | // SendMessage(hWnd, EM_SETREADONLY, (WPARAM)!editable, (LPARAM)0L); |
| 344 | } |
| 345 | |
| 346 | void wxTextCtrl::SetInsertionPoint(long pos) |
| 347 | { |
| 348 | // TODO: |
| 349 | /* |
| 350 | HWND hWnd = GetHwnd(); |
| 351 | { |
| 352 | SendMessage(hWnd, EM_SETSEL, pos, pos); |
| 353 | SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); |
| 354 | } |
| 355 | static const char *nothing = ""; |
| 356 | SendMessage(hWnd, EM_REPLACESEL, 0, (LPARAM)nothing); |
| 357 | */ |
| 358 | } |
| 359 | |
| 360 | void wxTextCtrl::SetInsertionPointEnd() |
| 361 | { |
| 362 | // TODO: |
| 363 | /* |
| 364 | long pos = GetLastPosition(); |
| 365 | SetInsertionPoint(pos); |
| 366 | */ |
| 367 | } |
| 368 | |
| 369 | long wxTextCtrl::GetInsertionPoint() const |
| 370 | { |
| 371 | // TODO: |
| 372 | /* |
| 373 | DWORD Pos = (DWORD)SendMessage(GetHwnd(), EM_GETSEL, 0, 0L); |
| 374 | return Pos & 0xFFFF; |
| 375 | */ |
| 376 | return 0; |
| 377 | } |
| 378 | |
| 379 | long wxTextCtrl::GetLastPosition() const |
| 380 | { |
| 381 | HWND hWnd = GetHwnd(); |
| 382 | |
| 383 | // TODO: |
| 384 | /* |
| 385 | // Will always return a number > 0 (according to docs) |
| 386 | int noLines = (int)SendMessage(hWnd, EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0L); |
| 387 | |
| 388 | // This gets the char index for the _beginning_ of the last line |
| 389 | int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)(noLines-1), (LPARAM)0L); |
| 390 | |
| 391 | // Get number of characters in the last line. We'll add this to the character |
| 392 | // index for the last line, 1st position. |
| 393 | int lineLength = (int)SendMessage(hWnd, EM_LINELENGTH, (WPARAM)charIndex, (LPARAM)0L); |
| 394 | |
| 395 | return (long)(charIndex + lineLength); |
| 396 | */ |
| 397 | return 0L; |
| 398 | } |
| 399 | |
| 400 | // If the return values from and to are the same, there is no |
| 401 | // selection. |
| 402 | void wxTextCtrl::GetSelection(long* from, long* to) const |
| 403 | { |
| 404 | DWORD dwStart, dwEnd; |
| 405 | MPARAM wParam = (MPARAM) (DWORD*) & dwStart; // receives starting position |
| 406 | MPARAM lParam = (MPARAM) (DWORD*) & dwEnd; // receives ending position |
| 407 | |
| 408 | // ::SendMessage(GetHwnd(), EM_GETSEL, wParam, lParam); |
| 409 | |
| 410 | *from = dwStart; |
| 411 | *to = dwEnd; |
| 412 | } |
| 413 | |
| 414 | bool wxTextCtrl::IsEditable() const |
| 415 | { |
| 416 | // TODO: |
| 417 | /* |
| 418 | long style = ::GetWindowLong(GetHwnd(), GWL_STYLE); |
| 419 | |
| 420 | return ((style & ES_READONLY) == 0); |
| 421 | */ |
| 422 | return FALSE; |
| 423 | } |
| 424 | |
| 425 | // ---------------------------------------------------------------------------- |
| 426 | // Editing |
| 427 | // ---------------------------------------------------------------------------- |
| 428 | |
| 429 | void wxTextCtrl::Replace(long from, long to, const wxString& value) |
| 430 | { |
| 431 | #if wxUSE_CLIPBOARD |
| 432 | HWND hWnd = GetHwnd(); |
| 433 | long fromChar = from; |
| 434 | long toChar = to; |
| 435 | |
| 436 | // Set selection and remove it |
| 437 | // SendMessage(hWnd, EM_SETSEL, fromChar, toChar); |
| 438 | // SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); |
| 439 | |
| 440 | // Now replace with 'value', by pasting. |
| 441 | wxSetClipboardData(wxDF_TEXT, (wxObject *) (const wxChar *)value, 0, 0); |
| 442 | |
| 443 | // Paste into edit control |
| 444 | // SendMessage(hWnd, WM_PASTE, (WPARAM)0, (LPARAM)0L); |
| 445 | #else |
| 446 | wxFAIL_MSG("wxTextCtrl::Replace not implemented if wxUSE_CLIPBOARD is 0."); |
| 447 | #endif |
| 448 | } |
| 449 | |
| 450 | void wxTextCtrl::Remove(long from, long to) |
| 451 | { |
| 452 | HWND hWnd = GetHwnd(); |
| 453 | long fromChar = from; |
| 454 | long toChar = to; |
| 455 | |
| 456 | // Cut all selected text |
| 457 | // SendMessage(hWnd, EM_SETSEL, fromChar, toChar); |
| 458 | // SendMessage(hWnd, WM_CUT, (WPARAM)0, (LPARAM)0); |
| 459 | } |
| 460 | |
| 461 | void wxTextCtrl::SetSelection(long from, long to) |
| 462 | { |
| 463 | HWND hWnd = GetHwnd(); |
| 464 | long fromChar = from; |
| 465 | long toChar = to; |
| 466 | |
| 467 | // if from and to are both -1, it means (in wxWindows) that all text should |
| 468 | // be selected. Translate into Windows convention |
| 469 | if ((from == -1) && (to == -1)) |
| 470 | { |
| 471 | fromChar = 0; |
| 472 | toChar = -1; |
| 473 | } |
| 474 | |
| 475 | // SendMessage(hWnd, EM_SETSEL, (WPARAM)fromChar, (LPARAM)toChar); |
| 476 | // SendMessage(hWnd, EM_SCROLLCARET, (WPARAM)0, (LPARAM)0); |
| 477 | } |
| 478 | |
| 479 | bool wxTextCtrl::LoadFile(const wxString& file) |
| 480 | { |
| 481 | // TODO: |
| 482 | /* |
| 483 | if ( wxTextCtrlBase::LoadFile(file) ) |
| 484 | { |
| 485 | // update the size limit if needed |
| 486 | AdjustSpaceLimit(); |
| 487 | |
| 488 | return TRUE; |
| 489 | } |
| 490 | */ |
| 491 | return FALSE; |
| 492 | } |
| 493 | |
| 494 | bool wxTextCtrl::IsModified() const |
| 495 | { |
| 496 | // return (SendMessage(GetHwnd(), EM_GETMODIFY, 0, 0) != 0); |
| 497 | return FALSE; |
| 498 | } |
| 499 | |
| 500 | // Makes 'unmodified' |
| 501 | void wxTextCtrl::DiscardEdits() |
| 502 | { |
| 503 | // SendMessage(GetHwnd(), EM_SETMODIFY, FALSE, 0L); |
| 504 | } |
| 505 | |
| 506 | int wxTextCtrl::GetNumberOfLines() const |
| 507 | { |
| 508 | // return (int)SendMessage(GetHwnd(), EM_GETLINECOUNT, (WPARAM)0, (LPARAM)0); |
| 509 | return 0; |
| 510 | } |
| 511 | |
| 512 | long wxTextCtrl::XYToPosition(long x, long y) const |
| 513 | { |
| 514 | HWND hWnd = GetHwnd(); |
| 515 | |
| 516 | // This gets the char index for the _beginning_ of this line |
| 517 | // TODO: |
| 518 | /* |
| 519 | int charIndex = (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)y, (LPARAM)0); |
| 520 | return (long)(x + charIndex); |
| 521 | */ |
| 522 | return 0L; |
| 523 | } |
| 524 | |
| 525 | bool wxTextCtrl::PositionToXY(long pos, long *x, long *y) const |
| 526 | { |
| 527 | HWND hWnd = GetHwnd(); |
| 528 | |
| 529 | // This gets the line number containing the character |
| 530 | int lineNo = -1; |
| 531 | // lineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, 0); |
| 532 | |
| 533 | if ( lineNo == -1 ) |
| 534 | { |
| 535 | // no such line |
| 536 | return FALSE; |
| 537 | } |
| 538 | |
| 539 | // This gets the char index for the _beginning_ of this line |
| 540 | int charIndex = 0; // TODO: (int)SendMessage(hWnd, EM_LINEINDEX, (WPARAM)lineNo, (LPARAM)0); |
| 541 | if ( charIndex == -1 ) |
| 542 | { |
| 543 | return FALSE; |
| 544 | } |
| 545 | |
| 546 | // The X position must therefore be the different between pos and charIndex |
| 547 | if ( x ) |
| 548 | *x = (long)(pos - charIndex); |
| 549 | if ( y ) |
| 550 | *y = (long)lineNo; |
| 551 | |
| 552 | return TRUE; |
| 553 | } |
| 554 | |
| 555 | void wxTextCtrl::ShowPosition(long pos) |
| 556 | { |
| 557 | HWND hWnd = GetHwnd(); |
| 558 | |
| 559 | // To scroll to a position, we pass the number of lines and characters |
| 560 | // to scroll *by*. This means that we need to: |
| 561 | // (1) Find the line position of the current line. |
| 562 | // (2) Find the line position of pos. |
| 563 | // (3) Scroll by (pos - current). |
| 564 | // For now, ignore the horizontal scrolling. |
| 565 | |
| 566 | // Is this where scrolling is relative to - the line containing the caret? |
| 567 | // Or is the first visible line??? Try first visible line. |
| 568 | // int currentLineLineNo1 = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)-1, (LPARAM)0L); |
| 569 | |
| 570 | // TODO: |
| 571 | /* |
| 572 | int currentLineLineNo = (int)SendMessage(hWnd, EM_GETFIRSTVISIBLELINE, (WPARAM)0, (LPARAM)0L); |
| 573 | |
| 574 | int specifiedLineLineNo = (int)SendMessage(hWnd, EM_LINEFROMCHAR, (WPARAM)pos, (LPARAM)0L); |
| 575 | |
| 576 | int linesToScroll = specifiedLineLineNo - currentLineLineNo; |
| 577 | |
| 578 | if (linesToScroll != 0) |
| 579 | (void)SendMessage(hWnd, EM_LINESCROLL, (WPARAM)0, (LPARAM)linesToScroll); |
| 580 | */ |
| 581 | } |
| 582 | |
| 583 | int wxTextCtrl::GetLineLength(long lineNo) const |
| 584 | { |
| 585 | // TODO: |
| 586 | /* |
| 587 | |
| 588 | long charIndex = XYToPosition(0, lineNo); |
| 589 | int len = (int)SendMessage(GetHwnd(), EM_LINELENGTH, charIndex, 0); |
| 590 | return len; |
| 591 | */ |
| 592 | return 0; |
| 593 | } |
| 594 | |
| 595 | wxString wxTextCtrl::GetLineText(long lineNo) const |
| 596 | { |
| 597 | size_t len = (size_t)GetLineLength(lineNo) + 1; |
| 598 | char *buf = (char *)malloc(len); |
| 599 | *(WORD *)buf = len; |
| 600 | int noChars = 0; // TODO:(int)SendMessage(GetHwnd(), EM_GETLINE, lineNo, (LPARAM)buf); |
| 601 | buf[noChars] = 0; |
| 602 | |
| 603 | wxString str(buf); |
| 604 | |
| 605 | free(buf); |
| 606 | |
| 607 | return str; |
| 608 | } |
| 609 | |
| 610 | // ---------------------------------------------------------------------------- |
| 611 | // Undo/redo |
| 612 | // ---------------------------------------------------------------------------- |
| 613 | |
| 614 | void wxTextCtrl::Undo() |
| 615 | { |
| 616 | if (CanUndo()) |
| 617 | { |
| 618 | // ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); |
| 619 | } |
| 620 | } |
| 621 | |
| 622 | void wxTextCtrl::Redo() |
| 623 | { |
| 624 | if (CanRedo()) |
| 625 | { |
| 626 | // Same as Undo, since Undo undoes the undo, i.e. a redo. |
| 627 | // ::SendMessage(GetHwnd(), EM_UNDO, 0, 0); |
| 628 | } |
| 629 | } |
| 630 | |
| 631 | bool wxTextCtrl::CanUndo() const |
| 632 | { |
| 633 | // return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); |
| 634 | return FALSE; |
| 635 | } |
| 636 | |
| 637 | bool wxTextCtrl::CanRedo() const |
| 638 | { |
| 639 | // return (::SendMessage(GetHwnd(), EM_CANUNDO, 0, 0) != 0); |
| 640 | return FALSE; |
| 641 | } |
| 642 | |
| 643 | // ---------------------------------------------------------------------------- |
| 644 | // implemenation details |
| 645 | // ---------------------------------------------------------------------------- |
| 646 | |
| 647 | void wxTextCtrl::Command(wxCommandEvent & event) |
| 648 | { |
| 649 | SetValue(event.GetString()); |
| 650 | ProcessCommand (event); |
| 651 | } |
| 652 | |
| 653 | void wxTextCtrl::OnDropFiles(wxDropFilesEvent& event) |
| 654 | { |
| 655 | // By default, load the first file into the text window. |
| 656 | if (event.GetNumberOfFiles() > 0) |
| 657 | { |
| 658 | LoadFile(event.GetFiles()[0]); |
| 659 | } |
| 660 | } |
| 661 | |
| 662 | WXHBRUSH wxTextCtrl::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, |
| 663 | WXUINT message, WXWPARAM wParam, |
| 664 | WXLPARAM lParam) |
| 665 | { |
| 666 | HDC hdc = (HDC)pDC; |
| 667 | // TODO: |
| 668 | /* |
| 669 | SetBkMode(hdc, GetParent()->GetTransparentBackground() ? TRANSPARENT |
| 670 | : OPAQUE); |
| 671 | |
| 672 | ::SetBkColor(hdc, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); |
| 673 | ::SetTextColor(hdc, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); |
| 674 | */ |
| 675 | wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); |
| 676 | |
| 677 | return (WXHBRUSH) backgroundBrush->GetResourceHandle(); |
| 678 | } |
| 679 | |
| 680 | void wxTextCtrl::OnChar(wxKeyEvent& event) |
| 681 | { |
| 682 | switch ( event.KeyCode() ) |
| 683 | { |
| 684 | // TODO: |
| 685 | /* |
| 686 | case WXK_RETURN: |
| 687 | if ( !(m_windowStyle & wxTE_MULTILINE) ) |
| 688 | { |
| 689 | wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId); |
| 690 | event.SetEventObject( this ); |
| 691 | if ( GetEventHandler()->ProcessEvent(event) ) |
| 692 | return; |
| 693 | } |
| 694 | //else: multiline controls need Enter for themselves |
| 695 | |
| 696 | break; |
| 697 | |
| 698 | case WXK_TAB: |
| 699 | // always produce navigation event - even if we process TAB |
| 700 | // ourselves the fact that we got here means that the user code |
| 701 | // decided to skip processing of this TAB - probably to let it |
| 702 | // do its default job. |
| 703 | // |
| 704 | // NB: Notice that Ctrl-Tab is handled elsewhere and Alt-Tab is |
| 705 | // handled by Windows |
| 706 | { |
| 707 | wxNavigationKeyEvent eventNav; |
| 708 | eventNav.SetDirection(!event.ShiftDown()); |
| 709 | eventNav.SetWindowChange(FALSE); |
| 710 | eventNav.SetEventObject(this); |
| 711 | |
| 712 | if ( GetEventHandler()->ProcessEvent(eventNav) ) |
| 713 | return; |
| 714 | } |
| 715 | break; |
| 716 | */ |
| 717 | default: |
| 718 | event.Skip(); |
| 719 | return; |
| 720 | } |
| 721 | |
| 722 | // don't just call event.Skip() because this will cause TABs and ENTERs |
| 723 | // be passed upwards and we don't always want this - instead process it |
| 724 | // right here |
| 725 | |
| 726 | // FIXME |
| 727 | event.Skip(); |
| 728 | } |
| 729 | |
| 730 | bool wxTextCtrl::OS2Command(WXUINT param, WXWORD WXUNUSED(id)) |
| 731 | { |
| 732 | switch (param) |
| 733 | { |
| 734 | // TODO: |
| 735 | /* |
| 736 | case EN_SETFOCUS: |
| 737 | case EN_KILLFOCUS: |
| 738 | { |
| 739 | wxFocusEvent event(param == EN_KILLFOCUS ? wxEVT_KILL_FOCUS |
| 740 | : wxEVT_SET_FOCUS, |
| 741 | m_windowId); |
| 742 | event.SetEventObject( this ); |
| 743 | GetEventHandler()->ProcessEvent(event); |
| 744 | } |
| 745 | break; |
| 746 | |
| 747 | case EN_CHANGE: |
| 748 | { |
| 749 | wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, m_windowId); |
| 750 | wxString val(GetValue()); |
| 751 | if ( !val.IsNull() ) |
| 752 | event.m_commandString = WXSTRINGCAST val; |
| 753 | event.SetEventObject( this ); |
| 754 | ProcessCommand(event); |
| 755 | } |
| 756 | break; |
| 757 | |
| 758 | case EN_ERRSPACE: |
| 759 | // the text size limit has been hit - increase it |
| 760 | AdjustSpaceLimit(); |
| 761 | break; |
| 762 | |
| 763 | // the other notification messages are not processed |
| 764 | case EN_UPDATE: |
| 765 | case EN_MAXTEXT: |
| 766 | case EN_HSCROLL: |
| 767 | case EN_VSCROLL: |
| 768 | */ |
| 769 | default: |
| 770 | return FALSE; |
| 771 | } |
| 772 | |
| 773 | // processed |
| 774 | return TRUE; |
| 775 | } |
| 776 | |
| 777 | void wxTextCtrl::AdjustSpaceLimit() |
| 778 | { |
| 779 | // TODO: |
| 780 | /* |
| 781 | unsigned int len = ::GetWindowTextLength(GetHwnd()), |
| 782 | limit = ::SendMessage(GetHwnd(), EM_GETLIMITTEXT, 0, 0); |
| 783 | if ( len > limit ) |
| 784 | { |
| 785 | limit = len + 0x8000; // 32Kb |
| 786 | |
| 787 | if ( limit > 0xffff ) |
| 788 | ::SendMessage(GetHwnd(), EM_LIMITTEXT, 0, limit); |
| 789 | else |
| 790 | ::SendMessage(GetHwnd(), EM_LIMITTEXT, limit, 0); |
| 791 | } |
| 792 | */ |
| 793 | } |
| 794 | |
| 795 | bool wxTextCtrl::AcceptsFocus() const |
| 796 | { |
| 797 | // we don't want focus if we can't be edited |
| 798 | return IsEditable() && wxControl::AcceptsFocus(); |
| 799 | } |
| 800 | |
| 801 | wxSize wxTextCtrl::DoGetBestSize() const |
| 802 | { |
| 803 | int cx, cy; |
| 804 | wxGetCharSize(GetHWND(), &cx, &cy, (wxFont*)&GetFont()); |
| 805 | |
| 806 | int wText = DEFAULT_ITEM_WIDTH; |
| 807 | |
| 808 | int hText = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy); |
| 809 | if ( m_windowStyle & wxTE_MULTILINE ) |
| 810 | { |
| 811 | hText *= wxMin(GetNumberOfLines(), 5); |
| 812 | } |
| 813 | //else: for single line control everything is ok |
| 814 | |
| 815 | return wxSize(wText, hText); |
| 816 | } |
| 817 | |
| 818 | // ---------------------------------------------------------------------------- |
| 819 | // standard handlers for standard edit menu events |
| 820 | // ---------------------------------------------------------------------------- |
| 821 | |
| 822 | void wxTextCtrl::OnCut(wxCommandEvent& event) |
| 823 | { |
| 824 | Cut(); |
| 825 | } |
| 826 | |
| 827 | void wxTextCtrl::OnCopy(wxCommandEvent& event) |
| 828 | { |
| 829 | Copy(); |
| 830 | } |
| 831 | |
| 832 | void wxTextCtrl::OnPaste(wxCommandEvent& event) |
| 833 | { |
| 834 | Paste(); |
| 835 | } |
| 836 | |
| 837 | void wxTextCtrl::OnUndo(wxCommandEvent& event) |
| 838 | { |
| 839 | Undo(); |
| 840 | } |
| 841 | |
| 842 | void wxTextCtrl::OnRedo(wxCommandEvent& event) |
| 843 | { |
| 844 | Redo(); |
| 845 | } |
| 846 | |
| 847 | void wxTextCtrl::OnUpdateCut(wxUpdateUIEvent& event) |
| 848 | { |
| 849 | event.Enable( CanCut() ); |
| 850 | } |
| 851 | |
| 852 | void wxTextCtrl::OnUpdateCopy(wxUpdateUIEvent& event) |
| 853 | { |
| 854 | event.Enable( CanCopy() ); |
| 855 | } |
| 856 | |
| 857 | void wxTextCtrl::OnUpdatePaste(wxUpdateUIEvent& event) |
| 858 | { |
| 859 | event.Enable( CanPaste() ); |
| 860 | } |
| 861 | |
| 862 | void wxTextCtrl::OnUpdateUndo(wxUpdateUIEvent& event) |
| 863 | { |
| 864 | event.Enable( CanUndo() ); |
| 865 | } |
| 866 | |
| 867 | void wxTextCtrl::OnUpdateRedo(wxUpdateUIEvent& event) |
| 868 | { |
| 869 | event.Enable( CanRedo() ); |
| 870 | } |
| 871 | |