src/common/textcmn.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/textcmn.cpp
   3 // Purpose:     implementation of platform-independent functions of wxTextCtrl
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     13.07.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // for compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/event.h"
  25 #endif // WX_PRECOMP
  26
  27 #if wxUSE_TEXTCTRL
  28
  29 #include "wx/textctrl.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/intl.h"
  33     #include "wx/log.h"
  34 #endif // WX_PRECOMP
  35
  36 #include "wx/ffile.h"
  37
  38 extern WXDLLEXPORT_DATA(const char) wxTextCtrlNameStr[] = "text";
  39
  40 // ----------------------------------------------------------------------------
  41 // macros
  42 // ----------------------------------------------------------------------------
  43
  44 // we don't have any objects of type wxTextCtrlBase in the program, only
  45 // wxTextCtrl, so this cast is safe
  46 #define TEXTCTRL(ptr)   ((wxTextCtrl *)(ptr))
  47
  48 // ============================================================================
  49 // implementation
  50 // ============================================================================
  51
  52 // ----------------------------------------------------------------------------
  53 // XTI
  54 // ----------------------------------------------------------------------------
  55
  56 wxDEFINE_FLAGS( wxTextCtrlStyle )
  57 wxBEGIN_FLAGS( wxTextCtrlStyle )
  58 // new style border flags, we put them first to
  59 // use them for streaming out
  60 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  61 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  62 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  63 wxFLAGS_MEMBER(wxBORDER_RAISED)
  64 wxFLAGS_MEMBER(wxBORDER_STATIC)
  65 wxFLAGS_MEMBER(wxBORDER_NONE)
  66
  67 // old style border flags
  68 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  69 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  70 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  71 wxFLAGS_MEMBER(wxRAISED_BORDER)
  72 wxFLAGS_MEMBER(wxSTATIC_BORDER)
  73 wxFLAGS_MEMBER(wxBORDER)
  74
  75 // standard window styles
  76 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  77 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  78 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  79 wxFLAGS_MEMBER(wxWANTS_CHARS)
  80 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  81 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  82 wxFLAGS_MEMBER(wxVSCROLL)
  83 wxFLAGS_MEMBER(wxHSCROLL)
  84
  85 wxFLAGS_MEMBER(wxTE_PROCESS_ENTER)
  86 wxFLAGS_MEMBER(wxTE_PROCESS_TAB)
  87 wxFLAGS_MEMBER(wxTE_MULTILINE)
  88 wxFLAGS_MEMBER(wxTE_PASSWORD)
  89 wxFLAGS_MEMBER(wxTE_READONLY)
  90 wxFLAGS_MEMBER(wxHSCROLL)
  91 wxFLAGS_MEMBER(wxTE_RICH)
  92 wxFLAGS_MEMBER(wxTE_RICH2)
  93 wxFLAGS_MEMBER(wxTE_AUTO_URL)
  94 wxFLAGS_MEMBER(wxTE_NOHIDESEL)
  95 wxFLAGS_MEMBER(wxTE_LEFT)
  96 wxFLAGS_MEMBER(wxTE_CENTRE)
  97 wxFLAGS_MEMBER(wxTE_RIGHT)
  98 wxFLAGS_MEMBER(wxTE_DONTWRAP)
  99 wxFLAGS_MEMBER(wxTE_CHARWRAP)
 100 wxFLAGS_MEMBER(wxTE_WORDWRAP)
 101 wxEND_FLAGS( wxTextCtrlStyle )
 102
 103 wxIMPLEMENT_DYNAMIC_CLASS_XTI(wxTextCtrl, wxControl, "wx/textctrl.h")
 104
 105 wxBEGIN_PROPERTIES_TABLE(wxTextCtrl)
 106 wxEVENT_PROPERTY( TextUpdated, wxEVT_COMMAND_TEXT_UPDATED, wxCommandEvent )
 107 wxEVENT_PROPERTY( TextEnter, wxEVT_COMMAND_TEXT_ENTER, wxCommandEvent )
 108
 109 wxPROPERTY( Font, wxFont, SetFont, GetFont , wxEMPTY_PARAMETER_VALUE, \
 110            0 /*flags*/, wxT("Helpstring"), wxT("group") )
 111 wxPROPERTY( Value, wxString, SetValue, GetValue, wxString(), \
 112            0 /*flags*/, wxT("Helpstring"), wxT("group"))
 113
 114 wxPROPERTY_FLAGS( WindowStyle, wxTextCtrlStyle, long, SetWindowStyleFlag, \
 115                  GetWindowStyleFlag, wxEMPTY_PARAMETER_VALUE, 0 /*flags*/, \
 116                  wxT("Helpstring"), wxT("group")) // style
 117 wxEND_PROPERTIES_TABLE()
 118
 119 wxEMPTY_HANDLERS_TABLE(wxTextCtrl)
 120
 121 wxCONSTRUCTOR_6( wxTextCtrl, wxWindow*, Parent, wxWindowID, Id, \
 122                 wxString, Value, wxPoint, Position, wxSize, Size, \
 123                 long, WindowStyle)
 124
 125
 126 IMPLEMENT_DYNAMIC_CLASS(wxTextUrlEvent, wxCommandEvent)
 127
 128 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_UPDATED, wxCommandEvent );
 129 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_ENTER, wxCommandEvent );
 130 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_URL, wxTextUrlEvent );
 131 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_MAXLEN, wxCommandEvent );
 132
 133 IMPLEMENT_ABSTRACT_CLASS(wxTextCtrlBase, wxControl)
 134
 135 // ============================================================================
 136 // wxTextAttr implementation
 137 // ============================================================================
 138
 139 wxTextAttr::wxTextAttr(const wxColour& colText,
 140                const wxColour& colBack,
 141                const wxFont& font,
 142                wxTextAttrAlignment alignment): m_textAlignment(alignment), m_colText(colText), m_colBack(colBack)
 143 {
 144     Init();
 145
 146     if (m_colText.IsOk()) m_flags |= wxTEXT_ATTR_TEXT_COLOUR;
 147     if (m_colBack.IsOk()) m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR;
 148     if (alignment != wxTEXT_ALIGNMENT_DEFAULT)
 149         m_flags |= wxTEXT_ATTR_ALIGNMENT;
 150
 151     GetFontAttributes(font);
 152 }
 153
 154 // Initialisation
 155 void wxTextAttr::Init()
 156 {
 157     m_textAlignment = wxTEXT_ALIGNMENT_DEFAULT;
 158     m_flags = 0;
 159     m_leftIndent = 0;
 160     m_leftSubIndent = 0;
 161     m_rightIndent = 0;
 162
 163     m_fontSize = 12;
 164     m_fontStyle = wxFONTSTYLE_NORMAL;
 165     m_fontWeight = wxFONTWEIGHT_NORMAL;
 166     m_fontUnderlined = false;
 167     m_fontEncoding = wxFONTENCODING_DEFAULT;
 168     m_fontFamily = wxFONTFAMILY_DEFAULT;
 169
 170     m_paragraphSpacingAfter = 0;
 171     m_paragraphSpacingBefore = 0;
 172     m_lineSpacing = 0;
 173     m_bulletStyle = wxTEXT_ATTR_BULLET_STYLE_NONE;
 174     m_textEffects = wxTEXT_ATTR_EFFECT_NONE;
 175     m_textEffectFlags = wxTEXT_ATTR_EFFECT_NONE;
 176     m_outlineLevel = 0;
 177     m_bulletNumber = 0;
 178 }
 179
 180 // Copy
 181 void wxTextAttr::Copy(const wxTextAttr& attr)
 182 {
 183     m_colText = attr.m_colText;
 184     m_colBack = attr.m_colBack;
 185     m_textAlignment = attr.m_textAlignment;
 186     m_leftIndent = attr.m_leftIndent;
 187     m_leftSubIndent = attr.m_leftSubIndent;
 188     m_rightIndent = attr.m_rightIndent;
 189     m_tabs = attr.m_tabs;
 190     m_flags = attr.m_flags;
 191
 192     m_fontSize = attr.m_fontSize;
 193     m_fontStyle = attr.m_fontStyle;
 194     m_fontWeight = attr.m_fontWeight;
 195     m_fontUnderlined = attr.m_fontUnderlined;
 196     m_fontFaceName = attr.m_fontFaceName;
 197     m_fontEncoding = attr.m_fontEncoding;
 198     m_fontFamily = attr.m_fontFamily;
 199     m_textEffects = attr.m_textEffects;
 200     m_textEffectFlags = attr.m_textEffectFlags;
 201
 202     m_paragraphSpacingAfter = attr.m_paragraphSpacingAfter;
 203     m_paragraphSpacingBefore = attr.m_paragraphSpacingBefore;
 204     m_lineSpacing = attr.m_lineSpacing;
 205     m_characterStyleName = attr.m_characterStyleName;
 206     m_paragraphStyleName = attr.m_paragraphStyleName;
 207     m_listStyleName = attr.m_listStyleName;
 208     m_bulletStyle = attr.m_bulletStyle;
 209     m_bulletNumber = attr.m_bulletNumber;
 210     m_bulletText = attr.m_bulletText;
 211     m_bulletFont = attr.m_bulletFont;
 212     m_bulletName = attr.m_bulletName;
 213     m_outlineLevel = attr.m_outlineLevel;
 214
 215     m_urlTarget = attr.m_urlTarget;
 216 }
 217
 218 // operators
 219 void wxTextAttr::operator= (const wxTextAttr& attr)
 220 {
 221     Copy(attr);
 222 }
 223
 224 // Equality test
 225 bool wxTextAttr::operator== (const wxTextAttr& attr) const
 226 {
 227     return  GetFlags() == attr.GetFlags() &&
 228
 229             GetTextColour() == attr.GetTextColour() &&
 230             GetBackgroundColour() == attr.GetBackgroundColour() &&
 231
 232             GetAlignment() == attr.GetAlignment() &&
 233             GetLeftIndent() == attr.GetLeftIndent() &&
 234             GetLeftSubIndent() == attr.GetLeftSubIndent() &&
 235             GetRightIndent() == attr.GetRightIndent() &&
 236             TabsEq(GetTabs(), attr.GetTabs()) &&
 237
 238             GetParagraphSpacingAfter() == attr.GetParagraphSpacingAfter() &&
 239             GetParagraphSpacingBefore() == attr.GetParagraphSpacingBefore() &&
 240             GetLineSpacing() == attr.GetLineSpacing() &&
 241             GetCharacterStyleName() == attr.GetCharacterStyleName() &&
 242             GetParagraphStyleName() == attr.GetParagraphStyleName() &&
 243             GetListStyleName() == attr.GetListStyleName() &&
 244
 245             GetBulletStyle() == attr.GetBulletStyle() &&
 246             GetBulletText() == attr.GetBulletText() &&
 247             GetBulletNumber() == attr.GetBulletNumber() &&
 248             GetBulletFont() == attr.GetBulletFont() &&
 249             GetBulletName() == attr.GetBulletName() &&
 250
 251             GetTextEffects() == attr.GetTextEffects() &&
 252             GetTextEffectFlags() == attr.GetTextEffectFlags() &&
 253
 254             GetOutlineLevel() == attr.GetOutlineLevel() &&
 255
 256             GetFontSize() == attr.GetFontSize() &&
 257             GetFontStyle() == attr.GetFontStyle() &&
 258             GetFontWeight() == attr.GetFontWeight() &&
 259             GetFontUnderlined() == attr.GetFontUnderlined() &&
 260             GetFontFaceName() == attr.GetFontFaceName() &&
 261             GetFontEncoding() == attr.GetFontEncoding() &&
 262             GetFontFamily() == attr.GetFontFamily() &&
 263
 264             GetURL() == attr.GetURL();
 265 }
 266
 267 // Partial equality test. Only returns false if an attribute doesn't match.
 268 bool wxTextAttr::EqPartial(const wxTextAttr& attr) const
 269 {
 270     int flags = attr.GetFlags();
 271
 272     if ((flags & wxTEXT_ATTR_TEXT_COLOUR) && GetTextColour() != attr.GetTextColour())
 273         return false;
 274
 275     if ((flags & wxTEXT_ATTR_BACKGROUND_COLOUR) && GetBackgroundColour() != attr.GetBackgroundColour())
 276         return false;
 277
 278     if ((flags & wxTEXT_ATTR_FONT_FACE) &&
 279         GetFontFaceName() != attr.GetFontFaceName())
 280         return false;
 281
 282     if ((flags & wxTEXT_ATTR_FONT_SIZE) &&
 283         GetFontSize() != attr.GetFontSize())
 284         return false;
 285
 286     if ((flags & wxTEXT_ATTR_FONT_WEIGHT) &&
 287         GetFontWeight() != attr.GetFontWeight())
 288         return false;
 289
 290     if ((flags & wxTEXT_ATTR_FONT_ITALIC) &&
 291         GetFontStyle() != attr.GetFontStyle())
 292         return false;
 293
 294     if ((flags & wxTEXT_ATTR_FONT_UNDERLINE) &&
 295         GetFontUnderlined() != attr.GetFontUnderlined())
 296         return false;
 297
 298     if ((flags & wxTEXT_ATTR_FONT_ENCODING) &&
 299         GetFontEncoding() != attr.GetFontEncoding())
 300         return false;
 301
 302     if ((flags & wxTEXT_ATTR_FONT_FAMILY) &&
 303         GetFontFamily() != attr.GetFontFamily())
 304         return false;
 305
 306     if ((flags & wxTEXT_ATTR_URL) && GetURL() != attr.GetURL())
 307         return false;
 308
 309     if ((flags & wxTEXT_ATTR_ALIGNMENT) && GetAlignment() != attr.GetAlignment())
 310         return false;
 311
 312     if ((flags & wxTEXT_ATTR_LEFT_INDENT) &&
 313         ((GetLeftIndent() != attr.GetLeftIndent()) || (GetLeftSubIndent() != attr.GetLeftSubIndent())))
 314         return false;
 315
 316     if ((flags & wxTEXT_ATTR_RIGHT_INDENT) &&
 317         (GetRightIndent() != attr.GetRightIndent()))
 318         return false;
 319
 320     if ((flags & wxTEXT_ATTR_PARA_SPACING_AFTER) &&
 321         (GetParagraphSpacingAfter() != attr.GetParagraphSpacingAfter()))
 322         return false;
 323
 324     if ((flags & wxTEXT_ATTR_PARA_SPACING_BEFORE) &&
 325         (GetParagraphSpacingBefore() != attr.GetParagraphSpacingBefore()))
 326         return false;
 327
 328     if ((flags & wxTEXT_ATTR_LINE_SPACING) &&
 329         (GetLineSpacing() != attr.GetLineSpacing()))
 330         return false;
 331
 332     if ((flags & wxTEXT_ATTR_CHARACTER_STYLE_NAME) &&
 333         (GetCharacterStyleName() != attr.GetCharacterStyleName()))
 334         return false;
 335
 336     if ((flags & wxTEXT_ATTR_PARAGRAPH_STYLE_NAME) &&
 337         (GetParagraphStyleName() != attr.GetParagraphStyleName()))
 338         return false;
 339
 340     if ((flags & wxTEXT_ATTR_LIST_STYLE_NAME) &&
 341         (GetListStyleName() != attr.GetListStyleName()))
 342         return false;
 343
 344     if ((flags & wxTEXT_ATTR_BULLET_STYLE) &&
 345         (GetBulletStyle() != attr.GetBulletStyle()))
 346          return false;
 347
 348     if ((flags & wxTEXT_ATTR_BULLET_NUMBER) &&
 349         (GetBulletNumber() != attr.GetBulletNumber()))
 350          return false;
 351
 352     if ((flags & wxTEXT_ATTR_BULLET_TEXT) &&
 353         (GetBulletText() != attr.GetBulletText()) &&
 354         (GetBulletFont() != attr.GetBulletFont()))
 355          return false;
 356
 357     if ((flags & wxTEXT_ATTR_BULLET_NAME) &&
 358         (GetBulletName() != attr.GetBulletName()))
 359          return false;
 360
 361     if ((flags & wxTEXT_ATTR_TABS) &&
 362         !TabsEq(GetTabs(), attr.GetTabs()))
 363         return false;
 364
 365     if ((flags & wxTEXT_ATTR_PAGE_BREAK) &&
 366         (HasPageBreak() != attr.HasPageBreak()))
 367          return false;
 368
 369     if (flags & wxTEXT_ATTR_EFFECTS)
 370     {
 371         if (HasTextEffects() != attr.HasTextEffects())
 372             return false;
 373         if (!BitlistsEqPartial(GetTextEffects(), attr.GetTextEffects(), attr.GetTextEffectFlags()))
 374             return false;
 375     }
 376
 377     if ((flags & wxTEXT_ATTR_OUTLINE_LEVEL) &&
 378         (GetOutlineLevel() != attr.GetOutlineLevel()))
 379          return false;
 380
 381     return true;
 382 }
 383
 384 // Create font from font attributes.
 385 wxFont wxTextAttr::GetFont() const
 386 {
 387     if ( !HasFont() )
 388         return wxNullFont;
 389
 390     int fontSize = 10;
 391     if (HasFontSize())
 392         fontSize = GetFontSize();
 393
 394     int fontStyle = wxNORMAL;
 395     if (HasFontItalic())
 396         fontStyle = GetFontStyle();
 397
 398     int fontWeight = wxNORMAL;
 399     if (HasFontWeight())
 400         fontWeight = GetFontWeight();
 401
 402     bool underlined = false;
 403     if (HasFontUnderlined())
 404         underlined = GetFontUnderlined();
 405
 406     wxString fontFaceName;
 407     if (HasFontFaceName())
 408         fontFaceName = GetFontFaceName();
 409
 410     wxFontEncoding encoding = wxFONTENCODING_DEFAULT;
 411     if (HasFontEncoding())
 412         encoding = GetFontEncoding();
 413
 414     wxFontFamily fontFamily = wxFONTFAMILY_DEFAULT;
 415     if (HasFontFamily())
 416         fontFamily = GetFontFamily();
 417
 418     wxFont font(fontSize, fontFamily, fontStyle, fontWeight, underlined, fontFaceName, encoding);
 419     return font;
 420 }
 421
 422 // Get attributes from font.
 423 bool wxTextAttr::GetFontAttributes(const wxFont& font, int flags)
 424 {
 425     if (!font.IsOk())
 426         return false;
 427
 428     if (flags & wxTEXT_ATTR_FONT_SIZE)
 429         m_fontSize = font.GetPointSize();
 430
 431     if (flags & wxTEXT_ATTR_FONT_ITALIC)
 432         m_fontStyle = font.GetStyle();
 433
 434     if (flags & wxTEXT_ATTR_FONT_WEIGHT)
 435         m_fontWeight = font.GetWeight();
 436
 437     if (flags & wxTEXT_ATTR_FONT_UNDERLINE)
 438         m_fontUnderlined = font.GetUnderlined();
 439
 440     if (flags & wxTEXT_ATTR_FONT_FACE)
 441         m_fontFaceName = font.GetFaceName();
 442
 443     if (flags & wxTEXT_ATTR_FONT_ENCODING)
 444         m_fontEncoding = font.GetEncoding();
 445
 446     if (flags & wxTEXT_ATTR_FONT_FAMILY)
 447     {
 448         // wxFont might not know its family, avoid setting m_fontFamily to an
 449         // invalid value and rather pretend that we don't have any font family
 450         // information at all in this case
 451         const wxFontFamily fontFamily = font.GetFamily();
 452         if ( fontFamily == wxFONTFAMILY_UNKNOWN )
 453             flags &= ~wxTEXT_ATTR_FONT_FAMILY;
 454         else
 455             m_fontFamily = fontFamily;
 456     }
 457
 458     m_flags |= flags;
 459
 460     return true;
 461 }
 462
 463 // Resets bits in destination so new attributes aren't merged with mutually exclusive ones
 464 static bool wxResetIncompatibleBits(const int mask, const int srcFlags, int& destFlags, int& destBits)
 465 {
 466     if ((srcFlags & mask) && (destFlags & mask))
 467     {
 468         destBits &= ~mask;
 469         destFlags &= ~mask;
 470     }
 471
 472     return true;
 473 }
 474
 475 bool wxTextAttr::Apply(const wxTextAttr& style, const wxTextAttr* compareWith)
 476 {
 477     wxTextAttr& destStyle = (*this);
 478
 479     if (style.HasFontWeight())
 480     {
 481         if (!(compareWith && compareWith->HasFontWeight() && compareWith->GetFontWeight() == style.GetFontWeight()))
 482             destStyle.SetFontWeight(style.GetFontWeight());
 483     }
 484
 485     if (style.HasFontSize())
 486     {
 487         if (!(compareWith && compareWith->HasFontSize() && compareWith->GetFontSize() == style.GetFontSize()))
 488             destStyle.SetFontSize(style.GetFontSize());
 489     }
 490
 491     if (style.HasFontItalic())
 492     {
 493         if (!(compareWith && compareWith->HasFontItalic() && compareWith->GetFontStyle() == style.GetFontStyle()))
 494             destStyle.SetFontStyle(style.GetFontStyle());
 495     }
 496
 497     if (style.HasFontUnderlined())
 498     {
 499         if (!(compareWith && compareWith->HasFontUnderlined() && compareWith->GetFontUnderlined() == style.GetFontUnderlined()))
 500             destStyle.SetFontUnderlined(style.GetFontUnderlined());
 501     }
 502
 503     if (style.HasFontFaceName())
 504     {
 505         if (!(compareWith && compareWith->HasFontFaceName() && compareWith->GetFontFaceName() == style.GetFontFaceName()))
 506             destStyle.SetFontFaceName(style.GetFontFaceName());
 507     }
 508
 509     if (style.HasFontEncoding())
 510     {
 511         if (!(compareWith && compareWith->HasFontEncoding() && compareWith->GetFontEncoding() == style.GetFontEncoding()))
 512             destStyle.SetFontEncoding(style.GetFontEncoding());
 513     }
 514
 515     if (style.HasFontFamily())
 516     {
 517         if (!(compareWith && compareWith->HasFontFamily() && compareWith->GetFontFamily() == style.GetFontFamily()))
 518             destStyle.SetFontFamily(style.GetFontFamily());
 519     }
 520
 521     if (style.GetTextColour().IsOk() && style.HasTextColour())
 522     {
 523         if (!(compareWith && compareWith->HasTextColour() && compareWith->GetTextColour() == style.GetTextColour()))
 524             destStyle.SetTextColour(style.GetTextColour());
 525     }
 526
 527     if (style.GetBackgroundColour().IsOk() && style.HasBackgroundColour())
 528     {
 529         if (!(compareWith && compareWith->HasBackgroundColour() && compareWith->GetBackgroundColour() == style.GetBackgroundColour()))
 530             destStyle.SetBackgroundColour(style.GetBackgroundColour());
 531     }
 532
 533     if (style.HasAlignment())
 534     {
 535         if (!(compareWith && compareWith->HasAlignment() && compareWith->GetAlignment() == style.GetAlignment()))
 536             destStyle.SetAlignment(style.GetAlignment());
 537     }
 538
 539     if (style.HasTabs())
 540     {
 541         if (!(compareWith && compareWith->HasTabs() && TabsEq(compareWith->GetTabs(), style.GetTabs())))
 542             destStyle.SetTabs(style.GetTabs());
 543     }
 544
 545     if (style.HasLeftIndent())
 546     {
 547         if (!(compareWith && compareWith->HasLeftIndent() && compareWith->GetLeftIndent() == style.GetLeftIndent()
 548                           && compareWith->GetLeftSubIndent() == style.GetLeftSubIndent()))
 549             destStyle.SetLeftIndent(style.GetLeftIndent(), style.GetLeftSubIndent());
 550     }
 551
 552     if (style.HasRightIndent())
 553     {
 554         if (!(compareWith && compareWith->HasRightIndent() && compareWith->GetRightIndent() == style.GetRightIndent()))
 555             destStyle.SetRightIndent(style.GetRightIndent());
 556     }
 557
 558     if (style.HasParagraphSpacingAfter())
 559     {
 560         if (!(compareWith && compareWith->HasParagraphSpacingAfter() && compareWith->GetParagraphSpacingAfter() == style.GetParagraphSpacingAfter()))
 561             destStyle.SetParagraphSpacingAfter(style.GetParagraphSpacingAfter());
 562     }
 563
 564     if (style.HasParagraphSpacingBefore())
 565     {
 566         if (!(compareWith && compareWith->HasParagraphSpacingBefore() && compareWith->GetParagraphSpacingBefore() == style.GetParagraphSpacingBefore()))
 567             destStyle.SetParagraphSpacingBefore(style.GetParagraphSpacingBefore());
 568     }
 569
 570     if (style.HasLineSpacing())
 571     {
 572         if (!(compareWith && compareWith->HasLineSpacing() && compareWith->GetLineSpacing() == style.GetLineSpacing()))
 573             destStyle.SetLineSpacing(style.GetLineSpacing());
 574     }
 575
 576     if (style.HasCharacterStyleName())
 577     {
 578         if (!(compareWith && compareWith->HasCharacterStyleName() && compareWith->GetCharacterStyleName() == style.GetCharacterStyleName()))
 579             destStyle.SetCharacterStyleName(style.GetCharacterStyleName());
 580     }
 581
 582     if (style.HasParagraphStyleName())
 583     {
 584         if (!(compareWith && compareWith->HasParagraphStyleName() && compareWith->GetParagraphStyleName() == style.GetParagraphStyleName()))
 585             destStyle.SetParagraphStyleName(style.GetParagraphStyleName());
 586     }
 587
 588     if (style.HasListStyleName())
 589     {
 590         if (!(compareWith && compareWith->HasListStyleName() && compareWith->GetListStyleName() == style.GetListStyleName()))
 591             destStyle.SetListStyleName(style.GetListStyleName());
 592     }
 593
 594     if (style.HasBulletStyle())
 595     {
 596         if (!(compareWith && compareWith->HasBulletStyle() && compareWith->GetBulletStyle() == style.GetBulletStyle()))
 597             destStyle.SetBulletStyle(style.GetBulletStyle());
 598     }
 599
 600     if (style.HasBulletText())
 601     {
 602         if (!(compareWith && compareWith->HasBulletText() && compareWith->GetBulletText() == style.GetBulletText()))
 603         {
 604             destStyle.SetBulletText(style.GetBulletText());
 605             destStyle.SetBulletFont(style.GetBulletFont());
 606         }
 607     }
 608
 609     if (style.HasBulletNumber())
 610     {
 611         if (!(compareWith && compareWith->HasBulletNumber() && compareWith->GetBulletNumber() == style.GetBulletNumber()))
 612             destStyle.SetBulletNumber(style.GetBulletNumber());
 613     }
 614
 615     if (style.HasBulletName())
 616     {
 617         if (!(compareWith && compareWith->HasBulletName() && compareWith->GetBulletName() == style.GetBulletName()))
 618             destStyle.SetBulletName(style.GetBulletName());
 619     }
 620
 621     if (style.HasURL())
 622     {
 623         if (!(compareWith && compareWith->HasURL() && compareWith->GetURL() == style.GetURL()))
 624             destStyle.SetURL(style.GetURL());
 625     }
 626
 627     if (style.HasPageBreak())
 628     {
 629         if (!(compareWith && compareWith->HasPageBreak()))
 630             destStyle.SetPageBreak();
 631     }
 632
 633     if (style.HasTextEffects())
 634     {
 635         if (!(compareWith && compareWith->HasTextEffects() && compareWith->GetTextEffects() == style.GetTextEffects()))
 636         {
 637             int destBits = destStyle.GetTextEffects();
 638             int destFlags = destStyle.GetTextEffectFlags();
 639
 640             int srcBits = style.GetTextEffects();
 641             int srcFlags = style.GetTextEffectFlags();
 642
 643             // Reset incompatible bits in the destination
 644             wxResetIncompatibleBits((wxTEXT_ATTR_EFFECT_SUPERSCRIPT|wxTEXT_ATTR_EFFECT_SUBSCRIPT), srcFlags, destFlags, destBits);
 645             wxResetIncompatibleBits((wxTEXT_ATTR_EFFECT_CAPITALS|wxTEXT_ATTR_EFFECT_SMALL_CAPITALS), srcFlags, destFlags, destBits);
 646             wxResetIncompatibleBits((wxTEXT_ATTR_EFFECT_STRIKETHROUGH|wxTEXT_ATTR_EFFECT_DOUBLE_STRIKETHROUGH), srcFlags, destFlags, destBits);
 647
 648             CombineBitlists(destBits, srcBits, destFlags, srcFlags);
 649
 650             destStyle.SetTextEffects(destBits);
 651             destStyle.SetTextEffectFlags(destFlags);
 652         }
 653     }
 654
 655     if (style.HasOutlineLevel())
 656     {
 657         if (!(compareWith && compareWith->HasOutlineLevel() && compareWith->GetOutlineLevel() == style.GetOutlineLevel()))
 658             destStyle.SetOutlineLevel(style.GetOutlineLevel());
 659     }
 660
 661     return true;
 662 }
 663
 664 /* static */
 665 wxTextAttr wxTextAttr::Combine(const wxTextAttr& attr,
 666                                const wxTextAttr& attrDef,
 667                                const wxTextCtrlBase *text)
 668 {
 669     wxFont font;
 670     if (attr.HasFont())
 671         font = attr.GetFont();
 672
 673     if ( !font.IsOk() )
 674     {
 675         if (attrDef.HasFont())
 676             font = attrDef.GetFont();
 677
 678         if ( text && !font.IsOk() )
 679             font = text->GetFont();
 680     }
 681
 682     wxColour colFg = attr.GetTextColour();
 683     if ( !colFg.IsOk() )
 684     {
 685         colFg = attrDef.GetTextColour();
 686
 687         if ( text && !colFg.IsOk() )
 688             colFg = text->GetForegroundColour();
 689     }
 690
 691     wxColour colBg = attr.GetBackgroundColour();
 692     if ( !colBg.IsOk() )
 693     {
 694         colBg = attrDef.GetBackgroundColour();
 695
 696         if ( text && !colBg.IsOk() )
 697             colBg = text->GetBackgroundColour();
 698     }
 699
 700     wxTextAttr newAttr(colFg, colBg, font);
 701
 702     if (attr.HasAlignment())
 703         newAttr.SetAlignment(attr.GetAlignment());
 704     else if (attrDef.HasAlignment())
 705         newAttr.SetAlignment(attrDef.GetAlignment());
 706
 707     if (attr.HasTabs())
 708         newAttr.SetTabs(attr.GetTabs());
 709     else if (attrDef.HasTabs())
 710         newAttr.SetTabs(attrDef.GetTabs());
 711
 712     if (attr.HasLeftIndent())
 713         newAttr.SetLeftIndent(attr.GetLeftIndent(), attr.GetLeftSubIndent());
 714     else if (attrDef.HasLeftIndent())
 715         newAttr.SetLeftIndent(attrDef.GetLeftIndent(), attr.GetLeftSubIndent());
 716
 717     if (attr.HasRightIndent())
 718         newAttr.SetRightIndent(attr.GetRightIndent());
 719     else if (attrDef.HasRightIndent())
 720         newAttr.SetRightIndent(attrDef.GetRightIndent());
 721
 722     return newAttr;
 723 }
 724
 725 /// Compare tabs
 726 bool wxTextAttr::TabsEq(const wxArrayInt& tabs1, const wxArrayInt& tabs2)
 727 {
 728     if (tabs1.GetCount() != tabs2.GetCount())
 729         return false;
 730
 731     size_t i;
 732     for (i = 0; i < tabs1.GetCount(); i++)
 733     {
 734         if (tabs1[i] != tabs2[i])
 735             return false;
 736     }
 737     return true;
 738 }
 739
 740 // Remove attributes
 741 bool wxTextAttr::RemoveStyle(wxTextAttr& destStyle, const wxTextAttr& style)
 742 {
 743     int flags = style.GetFlags();
 744     int destFlags = destStyle.GetFlags();
 745
 746     destStyle.SetFlags(destFlags & ~flags);
 747
 748     return true;
 749 }
 750
 751 /// Combine two bitlists, specifying the bits of interest with separate flags.
 752 bool wxTextAttr::CombineBitlists(int& valueA, int valueB, int& flagsA, int flagsB)
 753 {
 754     // We want to apply B's bits to A, taking into account each's flags which indicate which bits
 755     // are to be taken into account. A zero in B's bits should reset that bit in A but only if B's flags
 756     // indicate it.
 757
 758     // First, reset the 0 bits from B. We make a mask so we're only dealing with B's zero
 759     // bits at this point, ignoring any 1 bits in B or 0 bits in B that are not relevant.
 760     int valueA2 = ~(~valueB & flagsB) & valueA;
 761
 762     // Now combine the 1 bits.
 763     int valueA3 = (valueB & flagsB) | valueA2;
 764
 765     valueA = valueA3;
 766     flagsA = (flagsA | flagsB);
 767
 768     return true;
 769 }
 770
 771 /// Compare two bitlists
 772 bool wxTextAttr::BitlistsEqPartial(int valueA, int valueB, int flags)
 773 {
 774     int relevantBitsA = valueA & flags;
 775     int relevantBitsB = valueB & flags;
 776     return (relevantBitsA != relevantBitsB);
 777 }
 778
 779 /// Split into paragraph and character styles
 780 bool wxTextAttr::SplitParaCharStyles(const wxTextAttr& style, wxTextAttr& parStyle, wxTextAttr& charStyle)
 781 {
 782     wxTextAttr defaultCharStyle1(style);
 783     wxTextAttr defaultParaStyle1(style);
 784     defaultCharStyle1.SetFlags(defaultCharStyle1.GetFlags()&wxTEXT_ATTR_CHARACTER);
 785     defaultParaStyle1.SetFlags(defaultParaStyle1.GetFlags()&wxTEXT_ATTR_PARAGRAPH);
 786
 787     charStyle.Apply(defaultCharStyle1);
 788     parStyle.Apply(defaultParaStyle1);
 789
 790     return true;
 791 }
 792
 793 // apply styling to text range
 794 bool wxTextCtrlBase::SetStyle(long WXUNUSED(start), long WXUNUSED(end),
 795                               const wxTextAttr& WXUNUSED(style))
 796 {
 797     // to be implemented in derived classes
 798     return false;
 799 }
 800
 801 // get the styling at the given position
 802 bool wxTextCtrlBase::GetStyle(long WXUNUSED(position), wxTextAttr& WXUNUSED(style))
 803 {
 804     // to be implemented in derived classes
 805     return false;
 806 }
 807
 808 // change default text attributes
 809 bool wxTextCtrlBase::SetDefaultStyle(const wxTextAttr& style)
 810 {
 811     // keep the old attributes if the new style doesn't specify them unless the
 812     // new style is empty - then reset m_defaultStyle (as there is no other way
 813     // to do it)
 814     if ( style.IsDefault() )
 815         m_defaultStyle = style;
 816     else
 817         m_defaultStyle = wxTextAttr::Combine(style, m_defaultStyle, this);
 818
 819     return true;
 820 }
 821
 822 // ----------------------------------------------------------------------------
 823 // file IO functions
 824 // ----------------------------------------------------------------------------
 825
 826 bool wxTextAreaBase::DoLoadFile(const wxString& filename, int WXUNUSED(fileType))
 827 {
 828 #if wxUSE_FFILE
 829     wxFFile file(filename);
 830     if ( file.IsOpened() )
 831     {
 832         wxString text;
 833         if ( file.ReadAll(&text) )
 834         {
 835             SetValue(text);
 836
 837             return true;
 838         }
 839     }
 840 #endif // wxUSE_FFILE
 841
 842     return false;
 843 }
 844
 845 bool wxTextCtrlBase::DoLoadFile(const wxString& filename, int fileType)
 846 {
 847     if ( wxTextAreaBase::DoLoadFile(filename, fileType) )
 848     {
 849         DiscardEdits();
 850         m_filename = filename;
 851         return true;
 852     }
 853     wxLogError(_("File couldn't be loaded."));
 854     return false;
 855 }
 856
 857 bool wxTextAreaBase::DoSaveFile(const wxString& filename, int WXUNUSED(fileType))
 858 {
 859 #if wxUSE_FFILE
 860     wxFFile file(filename, wxT("w"));
 861     return file.IsOpened() && file.Write(GetValue(), *wxConvCurrent);
 862 #else
 863     return false;
 864 #endif // wxUSE_FFILE
 865 }
 866
 867 bool wxTextAreaBase::SaveFile(const wxString& filename, int fileType)
 868 {
 869     wxString filenameToUse = filename.empty() ? m_filename : filename;
 870     if ( filenameToUse.empty() )
 871     {
 872         // what kind of message to give? is it an error or a program bug?
 873         wxLogDebug(wxT("Can't save textctrl to file without filename."));
 874
 875         return false;
 876     }
 877
 878     return DoSaveFile(filenameToUse, fileType);
 879 }
 880
 881 bool wxTextCtrlBase::DoSaveFile(const wxString& filename, int fileType)
 882 {
 883     if ( wxTextAreaBase::DoSaveFile(filename, fileType) )
 884     {
 885         // if it worked, save for future calls
 886         m_filename = filename;
 887
 888         // it's not modified any longer
 889         DiscardEdits();
 890
 891         return true;
 892     }
 893     return false;
 894 }
 895
 896 // ----------------------------------------------------------------------------
 897 // stream-like insertion operator
 898 // ----------------------------------------------------------------------------
 899
 900 wxTextCtrl& wxTextCtrlBase::operator<<(const wxString& s)
 901 {
 902     AppendText(s);
 903     return *TEXTCTRL(this);
 904 }
 905
 906 wxTextCtrl& wxTextCtrlBase::operator<<(double d)
 907 {
 908     return *this << wxString::Format("%.2f", d);
 909 }
 910
 911 wxTextCtrl& wxTextCtrlBase::operator<<(int i)
 912 {
 913     return *this << wxString::Format("%d", i);
 914 }
 915
 916 wxTextCtrl& wxTextCtrlBase::operator<<(long l)
 917 {
 918     return *this << wxString::Format("%ld", l);
 919 }
 920
 921 // ----------------------------------------------------------------------------
 922 // streambuf methods implementation
 923 // ----------------------------------------------------------------------------
 924
 925 #if wxHAS_TEXT_WINDOW_STREAM
 926
 927 int wxTextCtrlBase::overflow(int c)
 928 {
 929     AppendText((wxChar)c);
 930
 931     // return something different from EOF
 932     return 0;
 933 }
 934
 935 #endif // wxHAS_TEXT_WINDOW_STREAM
 936
 937 // ----------------------------------------------------------------------------
 938 // emulating key presses
 939 // ----------------------------------------------------------------------------
 940
 941 bool wxTextCtrlBase::EmulateKeyPress(const wxKeyEvent& event)
 942 {
 943     bool handled = false;
 944     // we have a native implementation for Win32 and so don't need this one
 945 #ifndef __WIN32__
 946     wxChar ch = 0;
 947     int keycode = event.GetKeyCode();
 948
 949     long from, to;
 950     GetSelection(&from,&to);
 951     long insert = GetInsertionPoint();
 952     long last = GetLastPosition();
 953
 954     // catch arrow left and right
 955
 956     switch ( keycode )
 957     {
 958         case WXK_LEFT:
 959             if ( event.ShiftDown() )
 960                 SetSelection( (from > 0 ? from - 1 : 0) , to );
 961             else
 962             {
 963                 if ( from != to )
 964                     insert = from;
 965                 else if ( insert > 0 )
 966                     insert -= 1;
 967                 SetInsertionPoint( insert );
 968             }
 969             handled = true;
 970             break;
 971         case WXK_RIGHT:
 972             if ( event.ShiftDown() )
 973                 SetSelection( from, (to < last ? to + 1 : last) );
 974             else
 975             {
 976                 if ( from != to )
 977                     insert = to;
 978                 else if ( insert < last )
 979                     insert += 1;
 980                 SetInsertionPoint( insert );
 981             }
 982             handled = true;
 983             break;
 984         case WXK_NUMPAD0:
 985         case WXK_NUMPAD1:
 986         case WXK_NUMPAD2:
 987         case WXK_NUMPAD3:
 988         case WXK_NUMPAD4:
 989         case WXK_NUMPAD5:
 990         case WXK_NUMPAD6:
 991         case WXK_NUMPAD7:
 992         case WXK_NUMPAD8:
 993         case WXK_NUMPAD9:
 994             ch = (wxChar)(wxT('0') + keycode - WXK_NUMPAD0);
 995             break;
 996
 997         case WXK_MULTIPLY:
 998         case WXK_NUMPAD_MULTIPLY:
 999             ch = wxT('*');
1000             break;
1001
1002         case WXK_ADD:
1003         case WXK_NUMPAD_ADD:
1004             ch = wxT('+');
1005             break;
1006
1007         case WXK_SUBTRACT:
1008         case WXK_NUMPAD_SUBTRACT:
1009             ch = wxT('-');
1010             break;
1011
1012         case WXK_DECIMAL:
1013         case WXK_NUMPAD_DECIMAL:
1014             ch = wxT('.');
1015             break;
1016
1017         case WXK_DIVIDE:
1018         case WXK_NUMPAD_DIVIDE:
1019             ch = wxT('/');
1020             break;
1021
1022         case WXK_DELETE:
1023         case WXK_NUMPAD_DELETE:
1024             // delete the character at cursor
1025             {
1026                 const long pos = GetInsertionPoint();
1027                 if ( pos < GetLastPosition() )
1028                     Remove(pos, pos + 1);
1029                 handled = true;
1030             }
1031             break;
1032
1033         case WXK_BACK:
1034             // delete the character before the cursor
1035             {
1036                 const long pos = GetInsertionPoint();
1037                 if ( pos > 0 )
1038                     Remove(pos - 1, pos);
1039                 handled = true;
1040             }
1041             break;
1042
1043         default:
1044 #if wxUSE_UNICODE
1045             if ( event.GetUnicodeKey() )
1046             {
1047                 ch = event.GetUnicodeKey();
1048             }
1049             else
1050 #endif
1051             if ( keycode < 256 && keycode >= 0 && wxIsprint(keycode) )
1052             {
1053                 // FIXME this is not going to work for non letters...
1054                 if ( !event.ShiftDown() )
1055                 {
1056                     keycode = wxTolower(keycode);
1057                 }
1058
1059                 ch = (wxChar)keycode;
1060             }
1061             else
1062             {
1063                 ch = wxT('\0');
1064             }
1065     }
1066
1067     if ( ch )
1068     {
1069         WriteText(ch);
1070
1071         handled = true;
1072     }
1073 #else // __WIN32__
1074     wxUnusedVar(event);
1075 #endif // !__WIN32__/__WIN32__
1076
1077     return handled;
1078 }
1079
1080 // do the window-specific processing after processing the update event
1081 void wxTextCtrlBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
1082 {
1083     // call inherited, but skip the wxControl's version, and call directly the
1084     // wxWindow's one instead, because the only reason why we are overriding this
1085     // function is that we want to use SetValue() instead of wxControl::SetLabel()
1086     wxWindowBase::DoUpdateWindowUI(event);
1087
1088     // update text
1089     if ( event.GetSetText() )
1090     {
1091         if ( event.GetText() != GetValue() )
1092             SetValue(event.GetText());
1093     }
1094 }
1095
1096 // ----------------------------------------------------------------------------
1097 // hit testing
1098 // ----------------------------------------------------------------------------
1099
1100 wxTextCtrlHitTestResult
1101 wxTextAreaBase::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
1102 {
1103     // implement in terms of the other overload as the native ports typically
1104     // can get the position and not (x, y) pair directly (although wxUniv
1105     // directly gets x and y -- and so overrides this method as well)
1106     long pos;
1107     wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
1108
1109     if ( rc != wxTE_HT_UNKNOWN )
1110     {
1111         PositionToXY(pos, x, y);
1112     }
1113
1114     return rc;
1115 }
1116
1117 wxTextCtrlHitTestResult
1118 wxTextAreaBase::HitTest(const wxPoint& WXUNUSED(pt), long * WXUNUSED(pos)) const
1119 {
1120     // not implemented
1121     return wxTE_HT_UNKNOWN;
1122 }
1123
1124 wxPoint wxTextAreaBase::PositionToCoords(long pos) const
1125 {
1126     wxCHECK_MSG( IsValidPosition(pos), wxDefaultPosition,
1127                  wxS("Position argument out of range.") );
1128
1129     return DoPositionToCoords(pos);
1130 }
1131
1132 wxPoint wxTextAreaBase::DoPositionToCoords(long WXUNUSED(pos)) const
1133 {
1134     return wxDefaultPosition;
1135 }
1136
1137 #else // !wxUSE_TEXTCTRL
1138
1139 // define this one even if !wxUSE_TEXTCTRL because it is also used by other
1140 // controls (wxComboBox and wxSpinCtrl)
1141
1142 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_UPDATED, wxCommandEvent );
1143
1144 #endif // wxUSE_TEXTCTRL/!wxUSE_TEXTCTRL