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