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