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     bool strikethrough = false;
 407     if ( HasFontStrikethrough() )
 408         strikethrough = GetFontStrikethrough();
 409
 410     wxString fontFaceName;
 411     if (HasFontFaceName())
 412         fontFaceName = GetFontFaceName();
 413
 414     wxFontEncoding encoding = wxFONTENCODING_DEFAULT;
 415     if (HasFontEncoding())
 416         encoding = GetFontEncoding();
 417
 418     wxFontFamily fontFamily = wxFONTFAMILY_DEFAULT;
 419     if (HasFontFamily())
 420         fontFamily = GetFontFamily();
 421
 422     wxFont font(fontSize, fontFamily, fontStyle, fontWeight, underlined, fontFaceName, encoding);
 423     if ( strikethrough )
 424         font.SetStrikethrough( true );
 425     return font;
 426 }
 427
 428 // Get attributes from font.
 429 bool wxTextAttr::GetFontAttributes(const wxFont& font, int flags)
 430 {
 431     if (!font.IsOk())
 432         return false;
 433
 434     if (flags & wxTEXT_ATTR_FONT_SIZE)
 435         m_fontSize = font.GetPointSize();
 436
 437     if (flags & wxTEXT_ATTR_FONT_ITALIC)
 438         m_fontStyle = font.GetStyle();
 439
 440     if (flags & wxTEXT_ATTR_FONT_WEIGHT)
 441         m_fontWeight = font.GetWeight();
 442
 443     if (flags & wxTEXT_ATTR_FONT_UNDERLINE)
 444         m_fontUnderlined = font.GetUnderlined();
 445
 446     if (flags & wxTEXT_ATTR_FONT_STRIKETHROUGH)
 447         m_fontStrikethrough = font.GetStrikethrough();
 448
 449     if (flags & wxTEXT_ATTR_FONT_FACE)
 450         m_fontFaceName = font.GetFaceName();
 451
 452     if (flags & wxTEXT_ATTR_FONT_ENCODING)
 453         m_fontEncoding = font.GetEncoding();
 454
 455     if (flags & wxTEXT_ATTR_FONT_FAMILY)
 456     {
 457         // wxFont might not know its family, avoid setting m_fontFamily to an
 458         // invalid value and rather pretend that we don't have any font family
 459         // information at all in this case
 460         const wxFontFamily fontFamily = font.GetFamily();
 461         if ( fontFamily == wxFONTFAMILY_UNKNOWN )
 462             flags &= ~wxTEXT_ATTR_FONT_FAMILY;
 463         else
 464             m_fontFamily = fontFamily;
 465     }
 466
 467     m_flags |= flags;
 468
 469     return true;
 470 }
 471
 472 // Resets bits in destination so new attributes aren't merged with mutually exclusive ones
 473 static bool wxResetIncompatibleBits(const int mask, const int srcFlags, int& destFlags, int& destBits)
 474 {
 475     if ((srcFlags & mask) && (destFlags & mask))
 476     {
 477         destBits &= ~mask;
 478         destFlags &= ~mask;
 479     }
 480
 481     return true;
 482 }
 483
 484 bool wxTextAttr::Apply(const wxTextAttr& style, const wxTextAttr* compareWith)
 485 {
 486     wxTextAttr& destStyle = (*this);
 487
 488     if (style.HasFontWeight())
 489     {
 490         if (!(compareWith && compareWith->HasFontWeight() && compareWith->GetFontWeight() == style.GetFontWeight()))
 491             destStyle.SetFontWeight(style.GetFontWeight());
 492     }
 493
 494     if (style.HasFontSize())
 495     {
 496         if (!(compareWith && compareWith->HasFontSize() && compareWith->GetFontSize() == style.GetFontSize()))
 497             destStyle.SetFontSize(style.GetFontSize());
 498     }
 499
 500     if (style.HasFontItalic())
 501     {
 502         if (!(compareWith && compareWith->HasFontItalic() && compareWith->GetFontStyle() == style.GetFontStyle()))
 503             destStyle.SetFontStyle(style.GetFontStyle());
 504     }
 505
 506     if (style.HasFontUnderlined())
 507     {
 508         if (!(compareWith && compareWith->HasFontUnderlined() && compareWith->GetFontUnderlined() == style.GetFontUnderlined()))
 509             destStyle.SetFontUnderlined(style.GetFontUnderlined());
 510     }
 511
 512     if (style.HasFontStrikethrough())
 513     {
 514         if (!(compareWith && compareWith->HasFontStrikethrough() && compareWith->GetFontStrikethrough() == style.GetFontStrikethrough()))
 515             destStyle.SetFontStrikethrough(style.GetFontStrikethrough());
 516     }
 517
 518     if (style.HasFontFaceName())
 519     {
 520         if (!(compareWith && compareWith->HasFontFaceName() && compareWith->GetFontFaceName() == style.GetFontFaceName()))
 521             destStyle.SetFontFaceName(style.GetFontFaceName());
 522     }
 523
 524     if (style.HasFontEncoding())
 525     {
 526         if (!(compareWith && compareWith->HasFontEncoding() && compareWith->GetFontEncoding() == style.GetFontEncoding()))
 527             destStyle.SetFontEncoding(style.GetFontEncoding());
 528     }
 529
 530     if (style.HasFontFamily())
 531     {
 532         if (!(compareWith && compareWith->HasFontFamily() && compareWith->GetFontFamily() == style.GetFontFamily()))
 533             destStyle.SetFontFamily(style.GetFontFamily());
 534     }
 535
 536     if (style.GetTextColour().IsOk() && style.HasTextColour())
 537     {
 538         if (!(compareWith && compareWith->HasTextColour() && compareWith->GetTextColour() == style.GetTextColour()))
 539             destStyle.SetTextColour(style.GetTextColour());
 540     }
 541
 542     if (style.GetBackgroundColour().IsOk() && style.HasBackgroundColour())
 543     {
 544         if (!(compareWith && compareWith->HasBackgroundColour() && compareWith->GetBackgroundColour() == style.GetBackgroundColour()))
 545             destStyle.SetBackgroundColour(style.GetBackgroundColour());
 546     }
 547
 548     if (style.HasAlignment())
 549     {
 550         if (!(compareWith && compareWith->HasAlignment() && compareWith->GetAlignment() == style.GetAlignment()))
 551             destStyle.SetAlignment(style.GetAlignment());
 552     }
 553
 554     if (style.HasTabs())
 555     {
 556         if (!(compareWith && compareWith->HasTabs() && TabsEq(compareWith->GetTabs(), style.GetTabs())))
 557             destStyle.SetTabs(style.GetTabs());
 558     }
 559
 560     if (style.HasLeftIndent())
 561     {
 562         if (!(compareWith && compareWith->HasLeftIndent() && compareWith->GetLeftIndent() == style.GetLeftIndent()
 563                           && compareWith->GetLeftSubIndent() == style.GetLeftSubIndent()))
 564             destStyle.SetLeftIndent(style.GetLeftIndent(), style.GetLeftSubIndent());
 565     }
 566
 567     if (style.HasRightIndent())
 568     {
 569         if (!(compareWith && compareWith->HasRightIndent() && compareWith->GetRightIndent() == style.GetRightIndent()))
 570             destStyle.SetRightIndent(style.GetRightIndent());
 571     }
 572
 573     if (style.HasParagraphSpacingAfter())
 574     {
 575         if (!(compareWith && compareWith->HasParagraphSpacingAfter() && compareWith->GetParagraphSpacingAfter() == style.GetParagraphSpacingAfter()))
 576             destStyle.SetParagraphSpacingAfter(style.GetParagraphSpacingAfter());
 577     }
 578
 579     if (style.HasParagraphSpacingBefore())
 580     {
 581         if (!(compareWith && compareWith->HasParagraphSpacingBefore() && compareWith->GetParagraphSpacingBefore() == style.GetParagraphSpacingBefore()))
 582             destStyle.SetParagraphSpacingBefore(style.GetParagraphSpacingBefore());
 583     }
 584
 585     if (style.HasLineSpacing())
 586     {
 587         if (!(compareWith && compareWith->HasLineSpacing() && compareWith->GetLineSpacing() == style.GetLineSpacing()))
 588             destStyle.SetLineSpacing(style.GetLineSpacing());
 589     }
 590
 591     if (style.HasCharacterStyleName())
 592     {
 593         if (!(compareWith && compareWith->HasCharacterStyleName() && compareWith->GetCharacterStyleName() == style.GetCharacterStyleName()))
 594             destStyle.SetCharacterStyleName(style.GetCharacterStyleName());
 595     }
 596
 597     if (style.HasParagraphStyleName())
 598     {
 599         if (!(compareWith && compareWith->HasParagraphStyleName() && compareWith->GetParagraphStyleName() == style.GetParagraphStyleName()))
 600             destStyle.SetParagraphStyleName(style.GetParagraphStyleName());
 601     }
 602
 603     if (style.HasListStyleName())
 604     {
 605         if (!(compareWith && compareWith->HasListStyleName() && compareWith->GetListStyleName() == style.GetListStyleName()))
 606             destStyle.SetListStyleName(style.GetListStyleName());
 607     }
 608
 609     if (style.HasBulletStyle())
 610     {
 611         if (!(compareWith && compareWith->HasBulletStyle() && compareWith->GetBulletStyle() == style.GetBulletStyle()))
 612             destStyle.SetBulletStyle(style.GetBulletStyle());
 613     }
 614
 615     if (style.HasBulletText())
 616     {
 617         if (!(compareWith && compareWith->HasBulletText() && compareWith->GetBulletText() == style.GetBulletText()))
 618         {
 619             destStyle.SetBulletText(style.GetBulletText());
 620             destStyle.SetBulletFont(style.GetBulletFont());
 621         }
 622     }
 623
 624     if (style.HasBulletNumber())
 625     {
 626         if (!(compareWith && compareWith->HasBulletNumber() && compareWith->GetBulletNumber() == style.GetBulletNumber()))
 627             destStyle.SetBulletNumber(style.GetBulletNumber());
 628     }
 629
 630     if (style.HasBulletName())
 631     {
 632         if (!(compareWith && compareWith->HasBulletName() && compareWith->GetBulletName() == style.GetBulletName()))
 633             destStyle.SetBulletName(style.GetBulletName());
 634     }
 635
 636     if (style.HasURL())
 637     {
 638         if (!(compareWith && compareWith->HasURL() && compareWith->GetURL() == style.GetURL()))
 639             destStyle.SetURL(style.GetURL());
 640     }
 641
 642     if (style.HasPageBreak())
 643     {
 644         if (!(compareWith && compareWith->HasPageBreak()))
 645             destStyle.SetPageBreak();
 646     }
 647
 648     if (style.HasTextEffects())
 649     {
 650         if (!(compareWith && compareWith->HasTextEffects() && compareWith->GetTextEffects() == style.GetTextEffects()))
 651         {
 652             int destBits = destStyle.GetTextEffects();
 653             int destFlags = destStyle.GetTextEffectFlags();
 654
 655             int srcBits = style.GetTextEffects();
 656             int srcFlags = style.GetTextEffectFlags();
 657
 658             // Reset incompatible bits in the destination
 659             wxResetIncompatibleBits((wxTEXT_ATTR_EFFECT_SUPERSCRIPT|wxTEXT_ATTR_EFFECT_SUBSCRIPT), srcFlags, destFlags, destBits);
 660             wxResetIncompatibleBits((wxTEXT_ATTR_EFFECT_CAPITALS|wxTEXT_ATTR_EFFECT_SMALL_CAPITALS), srcFlags, destFlags, destBits);
 661             wxResetIncompatibleBits((wxTEXT_ATTR_EFFECT_STRIKETHROUGH|wxTEXT_ATTR_EFFECT_DOUBLE_STRIKETHROUGH), srcFlags, destFlags, destBits);
 662
 663             CombineBitlists(destBits, srcBits, destFlags, srcFlags);
 664
 665             destStyle.SetTextEffects(destBits);
 666             destStyle.SetTextEffectFlags(destFlags);
 667         }
 668     }
 669
 670     if (style.HasOutlineLevel())
 671     {
 672         if (!(compareWith && compareWith->HasOutlineLevel() && compareWith->GetOutlineLevel() == style.GetOutlineLevel()))
 673             destStyle.SetOutlineLevel(style.GetOutlineLevel());
 674     }
 675
 676     return true;
 677 }
 678
 679 /* static */
 680 wxTextAttr wxTextAttr::Combine(const wxTextAttr& attr,
 681                                const wxTextAttr& attrDef,
 682                                const wxTextCtrlBase *text)
 683 {
 684     wxFont font;
 685     if (attr.HasFont())
 686         font = attr.GetFont();
 687
 688     if ( !font.IsOk() )
 689     {
 690         if (attrDef.HasFont())
 691             font = attrDef.GetFont();
 692
 693         if ( text && !font.IsOk() )
 694             font = text->GetFont();
 695     }
 696
 697     wxColour colFg = attr.GetTextColour();
 698     if ( !colFg.IsOk() )
 699     {
 700         colFg = attrDef.GetTextColour();
 701
 702         if ( text && !colFg.IsOk() )
 703             colFg = text->GetForegroundColour();
 704     }
 705
 706     wxColour colBg = attr.GetBackgroundColour();
 707     if ( !colBg.IsOk() )
 708     {
 709         colBg = attrDef.GetBackgroundColour();
 710
 711         if ( text && !colBg.IsOk() )
 712             colBg = text->GetBackgroundColour();
 713     }
 714
 715     wxTextAttr newAttr(colFg, colBg, font);
 716
 717     if (attr.HasAlignment())
 718         newAttr.SetAlignment(attr.GetAlignment());
 719     else if (attrDef.HasAlignment())
 720         newAttr.SetAlignment(attrDef.GetAlignment());
 721
 722     if (attr.HasTabs())
 723         newAttr.SetTabs(attr.GetTabs());
 724     else if (attrDef.HasTabs())
 725         newAttr.SetTabs(attrDef.GetTabs());
 726
 727     if (attr.HasLeftIndent())
 728         newAttr.SetLeftIndent(attr.GetLeftIndent(), attr.GetLeftSubIndent());
 729     else if (attrDef.HasLeftIndent())
 730         newAttr.SetLeftIndent(attrDef.GetLeftIndent(), attr.GetLeftSubIndent());
 731
 732     if (attr.HasRightIndent())
 733         newAttr.SetRightIndent(attr.GetRightIndent());
 734     else if (attrDef.HasRightIndent())
 735         newAttr.SetRightIndent(attrDef.GetRightIndent());
 736
 737     return newAttr;
 738 }
 739
 740 /// Compare tabs
 741 bool wxTextAttr::TabsEq(const wxArrayInt& tabs1, const wxArrayInt& tabs2)
 742 {
 743     if (tabs1.GetCount() != tabs2.GetCount())
 744         return false;
 745
 746     size_t i;
 747     for (i = 0; i < tabs1.GetCount(); i++)
 748     {
 749         if (tabs1[i] != tabs2[i])
 750             return false;
 751     }
 752     return true;
 753 }
 754
 755 // Remove attributes
 756 bool wxTextAttr::RemoveStyle(wxTextAttr& destStyle, const wxTextAttr& style)
 757 {
 758     int flags = style.GetFlags();
 759     int destFlags = destStyle.GetFlags();
 760
 761     destStyle.SetFlags(destFlags & ~flags);
 762
 763     return true;
 764 }
 765
 766 /// Combine two bitlists, specifying the bits of interest with separate flags.
 767 bool wxTextAttr::CombineBitlists(int& valueA, int valueB, int& flagsA, int flagsB)
 768 {
 769     // We want to apply B's bits to A, taking into account each's flags which indicate which bits
 770     // are to be taken into account. A zero in B's bits should reset that bit in A but only if B's flags
 771     // indicate it.
 772
 773     // First, reset the 0 bits from B. We make a mask so we're only dealing with B's zero
 774     // bits at this point, ignoring any 1 bits in B or 0 bits in B that are not relevant.
 775     int valueA2 = ~(~valueB & flagsB) & valueA;
 776
 777     // Now combine the 1 bits.
 778     int valueA3 = (valueB & flagsB) | valueA2;
 779
 780     valueA = valueA3;
 781     flagsA = (flagsA | flagsB);
 782
 783     return true;
 784 }
 785
 786 /// Compare two bitlists
 787 bool wxTextAttr::BitlistsEqPartial(int valueA, int valueB, int flags)
 788 {
 789     int relevantBitsA = valueA & flags;
 790     int relevantBitsB = valueB & flags;
 791     return relevantBitsA == relevantBitsB;
 792 }
 793
 794 /// Split into paragraph and character styles
 795 bool wxTextAttr::SplitParaCharStyles(const wxTextAttr& style, wxTextAttr& parStyle, wxTextAttr& charStyle)
 796 {
 797     wxTextAttr defaultCharStyle1(style);
 798     wxTextAttr defaultParaStyle1(style);
 799     defaultCharStyle1.SetFlags(defaultCharStyle1.GetFlags()&wxTEXT_ATTR_CHARACTER);
 800     defaultParaStyle1.SetFlags(defaultParaStyle1.GetFlags()&wxTEXT_ATTR_PARAGRAPH);
 801
 802     charStyle.Apply(defaultCharStyle1);
 803     parStyle.Apply(defaultParaStyle1);
 804
 805     return true;
 806 }
 807
 808 // apply styling to text range
 809 bool wxTextCtrlBase::SetStyle(long WXUNUSED(start), long WXUNUSED(end),
 810                               const wxTextAttr& WXUNUSED(style))
 811 {
 812     // to be implemented in derived classes
 813     return false;
 814 }
 815
 816 // get the styling at the given position
 817 bool wxTextCtrlBase::GetStyle(long WXUNUSED(position), wxTextAttr& WXUNUSED(style))
 818 {
 819     // to be implemented in derived classes
 820     return false;
 821 }
 822
 823 // change default text attributes
 824 bool wxTextCtrlBase::SetDefaultStyle(const wxTextAttr& style)
 825 {
 826     // keep the old attributes if the new style doesn't specify them unless the
 827     // new style is empty - then reset m_defaultStyle (as there is no other way
 828     // to do it)
 829     if ( style.IsDefault() )
 830         m_defaultStyle = style;
 831     else
 832         m_defaultStyle = wxTextAttr::Combine(style, m_defaultStyle, this);
 833
 834     return true;
 835 }
 836
 837 // ----------------------------------------------------------------------------
 838 // file IO functions
 839 // ----------------------------------------------------------------------------
 840
 841 bool wxTextAreaBase::DoLoadFile(const wxString& filename, int WXUNUSED(fileType))
 842 {
 843 #if wxUSE_FFILE
 844     wxFFile file(filename);
 845     if ( file.IsOpened() )
 846     {
 847         wxString text;
 848         if ( file.ReadAll(&text) )
 849         {
 850             SetValue(text);
 851
 852             return true;
 853         }
 854     }
 855 #endif // wxUSE_FFILE
 856
 857     return false;
 858 }
 859
 860 bool wxTextCtrlBase::DoLoadFile(const wxString& filename, int fileType)
 861 {
 862     if ( wxTextAreaBase::DoLoadFile(filename, fileType) )
 863     {
 864         DiscardEdits();
 865         m_filename = filename;
 866         return true;
 867     }
 868     wxLogError(_("File couldn't be loaded."));
 869     return false;
 870 }
 871
 872 bool wxTextAreaBase::DoSaveFile(const wxString& filename, int WXUNUSED(fileType))
 873 {
 874 #if wxUSE_FFILE
 875     wxFFile file(filename, wxT("w"));
 876     return file.IsOpened() && file.Write(GetValue(), *wxConvCurrent);
 877 #else
 878     return false;
 879 #endif // wxUSE_FFILE
 880 }
 881
 882 bool wxTextAreaBase::SaveFile(const wxString& filename, int fileType)
 883 {
 884     wxString filenameToUse = filename.empty() ? m_filename : filename;
 885     if ( filenameToUse.empty() )
 886     {
 887         // what kind of message to give? is it an error or a program bug?
 888         wxLogDebug(wxT("Can't save textctrl to file without filename."));
 889
 890         return false;
 891     }
 892
 893     return DoSaveFile(filenameToUse, fileType);
 894 }
 895
 896 bool wxTextCtrlBase::DoSaveFile(const wxString& filename, int fileType)
 897 {
 898     if ( wxTextAreaBase::DoSaveFile(filename, fileType) )
 899     {
 900         // if it worked, save for future calls
 901         m_filename = filename;
 902
 903         // it's not modified any longer
 904         DiscardEdits();
 905
 906         return true;
 907     }
 908     return false;
 909 }
 910
 911 // ----------------------------------------------------------------------------
 912 // stream-like insertion operator
 913 // ----------------------------------------------------------------------------
 914
 915 wxTextCtrl& wxTextCtrlBase::operator<<(const wxString& s)
 916 {
 917     AppendText(s);
 918     return *TEXTCTRL(this);
 919 }
 920
 921 wxTextCtrl& wxTextCtrlBase::operator<<(double d)
 922 {
 923     return *this << wxString::Format("%.2f", d);
 924 }
 925
 926 wxTextCtrl& wxTextCtrlBase::operator<<(int i)
 927 {
 928     return *this << wxString::Format("%d", i);
 929 }
 930
 931 wxTextCtrl& wxTextCtrlBase::operator<<(long l)
 932 {
 933     return *this << wxString::Format("%ld", l);
 934 }
 935
 936 // ----------------------------------------------------------------------------
 937 // streambuf methods implementation
 938 // ----------------------------------------------------------------------------
 939
 940 #if wxHAS_TEXT_WINDOW_STREAM
 941
 942 int wxTextCtrlBase::overflow(int c)
 943 {
 944     AppendText((wxChar)c);
 945
 946     // return something different from EOF
 947     return 0;
 948 }
 949
 950 #endif // wxHAS_TEXT_WINDOW_STREAM
 951
 952 // ----------------------------------------------------------------------------
 953 // emulating key presses
 954 // ----------------------------------------------------------------------------
 955
 956 bool wxTextCtrlBase::EmulateKeyPress(const wxKeyEvent& event)
 957 {
 958     bool handled = false;
 959     // we have a native implementation for Win32 and so don't need this one
 960 #ifndef __WIN32__
 961     wxChar ch = 0;
 962     int keycode = event.GetKeyCode();
 963
 964     long from, to;
 965     GetSelection(&from,&to);
 966     long insert = GetInsertionPoint();
 967     long last = GetLastPosition();
 968
 969     // catch arrow left and right
 970
 971     switch ( keycode )
 972     {
 973         case WXK_LEFT:
 974             if ( event.ShiftDown() )
 975                 SetSelection( (from > 0 ? from - 1 : 0) , to );
 976             else
 977             {
 978                 if ( from != to )
 979                     insert = from;
 980                 else if ( insert > 0 )
 981                     insert -= 1;
 982                 SetInsertionPoint( insert );
 983             }
 984             handled = true;
 985             break;
 986         case WXK_RIGHT:
 987             if ( event.ShiftDown() )
 988                 SetSelection( from, (to < last ? to + 1 : last) );
 989             else
 990             {
 991                 if ( from != to )
 992                     insert = to;
 993                 else if ( insert < last )
 994                     insert += 1;
 995                 SetInsertionPoint( insert );
 996             }
 997             handled = true;
 998             break;
 999         case WXK_NUMPAD0:
1000         case WXK_NUMPAD1:
1001         case WXK_NUMPAD2:
1002         case WXK_NUMPAD3:
1003         case WXK_NUMPAD4:
1004         case WXK_NUMPAD5:
1005         case WXK_NUMPAD6:
1006         case WXK_NUMPAD7:
1007         case WXK_NUMPAD8:
1008         case WXK_NUMPAD9:
1009             ch = (wxChar)(wxT('0') + keycode - WXK_NUMPAD0);
1010             break;
1011
1012         case WXK_MULTIPLY:
1013         case WXK_NUMPAD_MULTIPLY:
1014             ch = wxT('*');
1015             break;
1016
1017         case WXK_ADD:
1018         case WXK_NUMPAD_ADD:
1019             ch = wxT('+');
1020             break;
1021
1022         case WXK_SUBTRACT:
1023         case WXK_NUMPAD_SUBTRACT:
1024             ch = wxT('-');
1025             break;
1026
1027         case WXK_DECIMAL:
1028         case WXK_NUMPAD_DECIMAL:
1029             ch = wxT('.');
1030             break;
1031
1032         case WXK_DIVIDE:
1033         case WXK_NUMPAD_DIVIDE:
1034             ch = wxT('/');
1035             break;
1036
1037         case WXK_DELETE:
1038         case WXK_NUMPAD_DELETE:
1039             // delete the character at cursor
1040             {
1041                 const long pos = GetInsertionPoint();
1042                 if ( pos < GetLastPosition() )
1043                     Remove(pos, pos + 1);
1044                 handled = true;
1045             }
1046             break;
1047
1048         case WXK_BACK:
1049             // delete the character before the cursor
1050             {
1051                 const long pos = GetInsertionPoint();
1052                 if ( pos > 0 )
1053                     Remove(pos - 1, pos);
1054                 handled = true;
1055             }
1056             break;
1057
1058         default:
1059 #if wxUSE_UNICODE
1060             if ( event.GetUnicodeKey() )
1061             {
1062                 ch = event.GetUnicodeKey();
1063             }
1064             else
1065 #endif
1066             if ( keycode < 256 && keycode >= 0 && wxIsprint(keycode) )
1067             {
1068                 // FIXME this is not going to work for non letters...
1069                 if ( !event.ShiftDown() )
1070                 {
1071                     keycode = wxTolower(keycode);
1072                 }
1073
1074                 ch = (wxChar)keycode;
1075             }
1076             else
1077             {
1078                 ch = wxT('\0');
1079             }
1080     }
1081
1082     if ( ch )
1083     {
1084         WriteText(ch);
1085
1086         handled = true;
1087     }
1088 #else // __WIN32__
1089     wxUnusedVar(event);
1090 #endif // !__WIN32__/__WIN32__
1091
1092     return handled;
1093 }
1094
1095 // do the window-specific processing after processing the update event
1096 void wxTextCtrlBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
1097 {
1098     // call inherited, but skip the wxControl's version, and call directly the
1099     // wxWindow's one instead, because the only reason why we are overriding this
1100     // function is that we want to use SetValue() instead of wxControl::SetLabel()
1101     wxWindowBase::DoUpdateWindowUI(event);
1102
1103     // update text
1104     if ( event.GetSetText() )
1105     {
1106         if ( event.GetText() != GetValue() )
1107             SetValue(event.GetText());
1108     }
1109 }
1110
1111 // ----------------------------------------------------------------------------
1112 // hit testing
1113 // ----------------------------------------------------------------------------
1114
1115 wxTextCtrlHitTestResult
1116 wxTextAreaBase::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
1117 {
1118     // implement in terms of the other overload as the native ports typically
1119     // can get the position and not (x, y) pair directly (although wxUniv
1120     // directly gets x and y -- and so overrides this method as well)
1121     long pos;
1122     wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
1123
1124     if ( rc != wxTE_HT_UNKNOWN )
1125     {
1126         PositionToXY(pos, x, y);
1127     }
1128
1129     return rc;
1130 }
1131
1132 wxTextCtrlHitTestResult
1133 wxTextAreaBase::HitTest(const wxPoint& WXUNUSED(pt), long * WXUNUSED(pos)) const
1134 {
1135     // not implemented
1136     return wxTE_HT_UNKNOWN;
1137 }
1138
1139 wxPoint wxTextAreaBase::PositionToCoords(long pos) const
1140 {
1141     wxCHECK_MSG( IsValidPosition(pos), wxDefaultPosition,
1142                  wxS("Position argument out of range.") );
1143
1144     return DoPositionToCoords(pos);
1145 }
1146
1147 wxPoint wxTextAreaBase::DoPositionToCoords(long WXUNUSED(pos)) const
1148 {
1149     return wxDefaultPosition;
1150 }
1151
1152 #else // !wxUSE_TEXTCTRL
1153
1154 // define this one even if !wxUSE_TEXTCTRL because it is also used by other
1155 // controls (wxComboBox and wxSpinCtrl)
1156
1157 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_UPDATED, wxCommandEvent );
1158
1159 #endif // wxUSE_TEXTCTRL/!wxUSE_TEXTCTRL