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