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     m_flags |= flags;
 358
 359     return true;
 360 }
 361
 362 bool wxTextAttr::Apply(const wxTextAttr& style, const wxTextAttr* compareWith)
 363 {
 364     wxTextAttr& destStyle = (*this);
 365
 366     if (style.HasFontWeight())
 367     {
 368         if (!(compareWith && compareWith->HasFontWeight() && compareWith->GetFontWeight() == style.GetFontWeight()))
 369             destStyle.SetFontWeight(style.GetFontWeight());
 370     }
 371
 372     if (style.HasFontSize())
 373     {
 374         if (!(compareWith && compareWith->HasFontSize() && compareWith->GetFontSize() == style.GetFontSize()))
 375             destStyle.SetFontSize(style.GetFontSize());
 376     }
 377
 378     if (style.HasFontItalic())
 379     {
 380         if (!(compareWith && compareWith->HasFontItalic() && compareWith->GetFontStyle() == style.GetFontStyle()))
 381             destStyle.SetFontStyle(style.GetFontStyle());
 382     }
 383
 384     if (style.HasFontUnderlined())
 385     {
 386         if (!(compareWith && compareWith->HasFontUnderlined() && compareWith->GetFontUnderlined() == style.GetFontUnderlined()))
 387             destStyle.SetFontUnderlined(style.GetFontUnderlined());
 388     }
 389
 390     if (style.HasFontFaceName())
 391     {
 392         if (!(compareWith && compareWith->HasFontFaceName() && compareWith->GetFontFaceName() == style.GetFontFaceName()))
 393             destStyle.SetFontFaceName(style.GetFontFaceName());
 394     }
 395
 396     if (style.HasFontEncoding())
 397     {
 398         if (!(compareWith && compareWith->HasFontEncoding() && compareWith->GetFontEncoding() == style.GetFontEncoding()))
 399             destStyle.SetFontEncoding(style.GetFontEncoding());
 400     }
 401
 402     if (style.GetTextColour().Ok() && style.HasTextColour())
 403     {
 404         if (!(compareWith && compareWith->HasTextColour() && compareWith->GetTextColour() == style.GetTextColour()))
 405             destStyle.SetTextColour(style.GetTextColour());
 406     }
 407
 408     if (style.GetBackgroundColour().Ok() && style.HasBackgroundColour())
 409     {
 410         if (!(compareWith && compareWith->HasBackgroundColour() && compareWith->GetBackgroundColour() == style.GetBackgroundColour()))
 411             destStyle.SetBackgroundColour(style.GetBackgroundColour());
 412     }
 413
 414     if (style.HasAlignment())
 415     {
 416         if (!(compareWith && compareWith->HasAlignment() && compareWith->GetAlignment() == style.GetAlignment()))
 417             destStyle.SetAlignment(style.GetAlignment());
 418     }
 419
 420     if (style.HasTabs())
 421     {
 422         if (!(compareWith && compareWith->HasTabs() && TabsEq(compareWith->GetTabs(), style.GetTabs())))
 423             destStyle.SetTabs(style.GetTabs());
 424     }
 425
 426     if (style.HasLeftIndent())
 427     {
 428         if (!(compareWith && compareWith->HasLeftIndent() && compareWith->GetLeftIndent() == style.GetLeftIndent()
 429                           && compareWith->GetLeftSubIndent() == style.GetLeftSubIndent()))
 430             destStyle.SetLeftIndent(style.GetLeftIndent(), style.GetLeftSubIndent());
 431     }
 432
 433     if (style.HasRightIndent())
 434     {
 435         if (!(compareWith && compareWith->HasRightIndent() && compareWith->GetRightIndent() == style.GetRightIndent()))
 436             destStyle.SetRightIndent(style.GetRightIndent());
 437     }
 438
 439     if (style.HasParagraphSpacingAfter())
 440     {
 441         if (!(compareWith && compareWith->HasParagraphSpacingAfter() && compareWith->GetParagraphSpacingAfter() == style.GetParagraphSpacingAfter()))
 442             destStyle.SetParagraphSpacingAfter(style.GetParagraphSpacingAfter());
 443     }
 444
 445     if (style.HasParagraphSpacingBefore())
 446     {
 447         if (!(compareWith && compareWith->HasParagraphSpacingBefore() && compareWith->GetParagraphSpacingBefore() == style.GetParagraphSpacingBefore()))
 448             destStyle.SetParagraphSpacingBefore(style.GetParagraphSpacingBefore());
 449     }
 450
 451     if (style.HasLineSpacing())
 452     {
 453         if (!(compareWith && compareWith->HasLineSpacing() && compareWith->GetLineSpacing() == style.GetLineSpacing()))
 454             destStyle.SetLineSpacing(style.GetLineSpacing());
 455     }
 456
 457     if (style.HasCharacterStyleName())
 458     {
 459         if (!(compareWith && compareWith->HasCharacterStyleName() && compareWith->GetCharacterStyleName() == style.GetCharacterStyleName()))
 460             destStyle.SetCharacterStyleName(style.GetCharacterStyleName());
 461     }
 462
 463     if (style.HasParagraphStyleName())
 464     {
 465         if (!(compareWith && compareWith->HasParagraphStyleName() && compareWith->GetParagraphStyleName() == style.GetParagraphStyleName()))
 466             destStyle.SetParagraphStyleName(style.GetParagraphStyleName());
 467     }
 468
 469     if (style.HasListStyleName())
 470     {
 471         if (!(compareWith && compareWith->HasListStyleName() && compareWith->GetListStyleName() == style.GetListStyleName()))
 472             destStyle.SetListStyleName(style.GetListStyleName());
 473     }
 474
 475     if (style.HasBulletStyle())
 476     {
 477         if (!(compareWith && compareWith->HasBulletStyle() && compareWith->GetBulletStyle() == style.GetBulletStyle()))
 478             destStyle.SetBulletStyle(style.GetBulletStyle());
 479     }
 480
 481     if (style.HasBulletText())
 482     {
 483         if (!(compareWith && compareWith->HasBulletText() && compareWith->GetBulletText() == style.GetBulletText()))
 484         {
 485             destStyle.SetBulletText(style.GetBulletText());
 486             destStyle.SetBulletFont(style.GetBulletFont());
 487         }
 488     }
 489
 490     if (style.HasBulletNumber())
 491     {
 492         if (!(compareWith && compareWith->HasBulletNumber() && compareWith->GetBulletNumber() == style.GetBulletNumber()))
 493             destStyle.SetBulletNumber(style.GetBulletNumber());
 494     }
 495
 496     if (style.HasBulletName())
 497     {
 498         if (!(compareWith && compareWith->HasBulletName() && compareWith->GetBulletName() == style.GetBulletName()))
 499             destStyle.SetBulletName(style.GetBulletName());
 500     }
 501
 502     if (style.HasURL())
 503     {
 504         if (!(compareWith && compareWith->HasURL() && compareWith->GetURL() == style.GetURL()))
 505             destStyle.SetURL(style.GetURL());
 506     }
 507
 508     if (style.HasPageBreak())
 509     {
 510         if (!(compareWith && compareWith->HasPageBreak()))
 511             destStyle.SetPageBreak();
 512     }
 513
 514     if (style.HasTextEffects())
 515     {
 516         if (!(compareWith && compareWith->HasTextEffects() && compareWith->GetTextEffects() == style.GetTextEffects()))
 517         {
 518             int destBits = destStyle.GetTextEffects();
 519             int destFlags = destStyle.GetTextEffectFlags();
 520
 521             int srcBits = style.GetTextEffects();
 522             int srcFlags = style.GetTextEffectFlags();
 523
 524             CombineBitlists(destBits, srcBits, destFlags, srcFlags);
 525
 526             destStyle.SetTextEffects(destBits);
 527             destStyle.SetTextEffectFlags(destFlags);
 528         }
 529     }
 530
 531     if (style.HasOutlineLevel())
 532     {
 533         if (!(compareWith && compareWith->HasOutlineLevel() && compareWith->GetOutlineLevel() == style.GetOutlineLevel()))
 534             destStyle.SetOutlineLevel(style.GetOutlineLevel());
 535     }
 536
 537     return true;
 538 }
 539
 540 /* static */
 541 wxTextAttr wxTextAttr::Combine(const wxTextAttr& attr,
 542                                const wxTextAttr& attrDef,
 543                                const wxTextCtrlBase *text)
 544 {
 545     wxFont font = attr.GetFont();
 546     if ( !font.Ok() )
 547     {
 548         font = attrDef.GetFont();
 549
 550         if ( text && !font.Ok() )
 551             font = text->GetFont();
 552     }
 553
 554     wxColour colFg = attr.GetTextColour();
 555     if ( !colFg.Ok() )
 556     {
 557         colFg = attrDef.GetTextColour();
 558
 559         if ( text && !colFg.Ok() )
 560             colFg = text->GetForegroundColour();
 561     }
 562
 563     wxColour colBg = attr.GetBackgroundColour();
 564     if ( !colBg.Ok() )
 565     {
 566         colBg = attrDef.GetBackgroundColour();
 567
 568         if ( text && !colBg.Ok() )
 569             colBg = text->GetBackgroundColour();
 570     }
 571
 572     wxTextAttr newAttr(colFg, colBg, font);
 573
 574     if (attr.HasAlignment())
 575         newAttr.SetAlignment(attr.GetAlignment());
 576     else if (attrDef.HasAlignment())
 577         newAttr.SetAlignment(attrDef.GetAlignment());
 578
 579     if (attr.HasTabs())
 580         newAttr.SetTabs(attr.GetTabs());
 581     else if (attrDef.HasTabs())
 582         newAttr.SetTabs(attrDef.GetTabs());
 583
 584     if (attr.HasLeftIndent())
 585         newAttr.SetLeftIndent(attr.GetLeftIndent(), attr.GetLeftSubIndent());
 586     else if (attrDef.HasLeftIndent())
 587         newAttr.SetLeftIndent(attrDef.GetLeftIndent(), attr.GetLeftSubIndent());
 588
 589     if (attr.HasRightIndent())
 590         newAttr.SetRightIndent(attr.GetRightIndent());
 591     else if (attrDef.HasRightIndent())
 592         newAttr.SetRightIndent(attrDef.GetRightIndent());
 593
 594     return newAttr;
 595 }
 596
 597 /// Compare tabs
 598 bool wxTextAttr::TabsEq(const wxArrayInt& tabs1, const wxArrayInt& tabs2)
 599 {
 600     if (tabs1.GetCount() != tabs2.GetCount())
 601         return false;
 602
 603     size_t i;
 604     for (i = 0; i < tabs1.GetCount(); i++)
 605     {
 606         if (tabs1[i] != tabs2[i])
 607             return false;
 608     }
 609     return true;
 610 }
 611
 612 // Remove attributes
 613 bool wxTextAttr::RemoveStyle(wxTextAttr& destStyle, const wxTextAttr& style)
 614 {
 615     int flags = style.GetFlags();
 616     int destFlags = destStyle.GetFlags();
 617
 618     destStyle.SetFlags(destFlags & ~flags);
 619
 620     return true;
 621 }
 622
 623 /// Combine two bitlists, specifying the bits of interest with separate flags.
 624 bool wxTextAttr::CombineBitlists(int& valueA, int valueB, int& flagsA, int flagsB)
 625 {
 626     // We want to apply B's bits to A, taking into account each's flags which indicate which bits
 627     // are to be taken into account. A zero in B's bits should reset that bit in A but only if B's flags
 628     // indicate it.
 629
 630     // First, reset the 0 bits from B. We make a mask so we're only dealing with B's zero
 631     // bits at this point, ignoring any 1 bits in B or 0 bits in B that are not relevant.
 632     int valueA2 = ~(~valueB & flagsB) & valueA;
 633
 634     // Now combine the 1 bits.
 635     int valueA3 = (valueB & flagsB) | valueA2;
 636
 637     valueA = valueA3;
 638     flagsA = (flagsA | flagsB);
 639
 640     return true;
 641 }
 642
 643 /// Compare two bitlists
 644 bool wxTextAttr::BitlistsEqPartial(int valueA, int valueB, int flags)
 645 {
 646     int relevantBitsA = valueA & flags;
 647     int relevantBitsB = valueB & flags;
 648     return (relevantBitsA != relevantBitsB);
 649 }
 650
 651 /// Split into paragraph and character styles
 652 bool wxTextAttr::SplitParaCharStyles(const wxTextAttr& style, wxTextAttr& parStyle, wxTextAttr& charStyle)
 653 {
 654     wxTextAttr defaultCharStyle1(style);
 655     wxTextAttr defaultParaStyle1(style);
 656     defaultCharStyle1.SetFlags(defaultCharStyle1.GetFlags()&wxTEXT_ATTR_CHARACTER);
 657     defaultParaStyle1.SetFlags(defaultParaStyle1.GetFlags()&wxTEXT_ATTR_PARAGRAPH);
 658
 659     charStyle.Apply(defaultCharStyle1);
 660     parStyle.Apply(defaultParaStyle1);
 661
 662     return true;
 663 }
 664
 665 // apply styling to text range
 666 bool wxTextCtrlBase::SetStyle(long WXUNUSED(start), long WXUNUSED(end),
 667                               const wxTextAttr& WXUNUSED(style))
 668 {
 669     // to be implemented in derived classes
 670     return false;
 671 }
 672
 673 // get the styling at the given position
 674 bool wxTextCtrlBase::GetStyle(long WXUNUSED(position), wxTextAttr& WXUNUSED(style))
 675 {
 676     // to be implemented in derived classes
 677     return false;
 678 }
 679
 680 // change default text attributes
 681 bool wxTextCtrlBase::SetDefaultStyle(const wxTextAttr& style)
 682 {
 683     // keep the old attributes if the new style doesn't specify them unless the
 684     // new style is empty - then reset m_defaultStyle (as there is no other way
 685     // to do it)
 686     if ( style.IsDefault() )
 687         m_defaultStyle = style;
 688     else
 689         m_defaultStyle = wxTextAttr::Combine(style, m_defaultStyle, this);
 690
 691     return true;
 692 }
 693
 694 // ----------------------------------------------------------------------------
 695 // file IO functions
 696 // ----------------------------------------------------------------------------
 697
 698 bool wxTextCtrlBase::DoLoadFile(const wxString& filename, int WXUNUSED(fileType))
 699 {
 700 #if wxUSE_FFILE
 701     wxFFile file(filename);
 702     if ( file.IsOpened() )
 703     {
 704         wxString text;
 705         if ( file.ReadAll(&text) )
 706         {
 707             SetValue(text);
 708
 709             DiscardEdits();
 710
 711             m_filename = filename;
 712
 713             return true;
 714         }
 715     }
 716
 717     wxLogError(_("File couldn't be loaded."));
 718 #endif // wxUSE_FFILE
 719
 720     return false;
 721 }
 722
 723 bool wxTextAreaBase::SaveFile(const wxString& filename, int fileType)
 724 {
 725     wxString filenameToUse = filename.empty() ? m_filename : filename;
 726     if ( filenameToUse.empty() )
 727     {
 728         // what kind of message to give? is it an error or a program bug?
 729         wxLogDebug(wxT("Can't save textctrl to file without filename."));
 730
 731         return false;
 732     }
 733
 734     return DoSaveFile(filenameToUse, fileType);
 735 }
 736
 737 bool wxTextCtrlBase::DoSaveFile(const wxString& filename, int WXUNUSED(fileType))
 738 {
 739 #if wxUSE_FFILE
 740     wxFFile file(filename, _T("w"));
 741     if ( file.IsOpened() && file.Write(GetValue()) )
 742     {
 743         // if it worked, save for future calls
 744         m_filename = filename;
 745
 746         // it's not modified any longer
 747         DiscardEdits();
 748
 749         return true;
 750     }
 751 #endif // wxUSE_FFILE
 752
 753     wxLogError(_("The text couldn't be saved."));
 754
 755     return false;
 756 }
 757
 758 // ----------------------------------------------------------------------------
 759 // stream-like insertion operator
 760 // ----------------------------------------------------------------------------
 761
 762 wxTextCtrl& wxTextCtrlBase::operator<<(const wxString& s)
 763 {
 764     AppendText(s);
 765     return *TEXTCTRL(this);
 766 }
 767
 768 wxTextCtrl& wxTextCtrlBase::operator<<(float f)
 769 {
 770     wxString str;
 771     str.Printf(wxT("%.2f"), f);
 772     AppendText(str);
 773     return *TEXTCTRL(this);
 774 }
 775
 776 wxTextCtrl& wxTextCtrlBase::operator<<(double d)
 777 {
 778     wxString str;
 779     str.Printf(wxT("%.2f"), d);
 780     AppendText(str);
 781     return *TEXTCTRL(this);
 782 }
 783
 784 wxTextCtrl& wxTextCtrlBase::operator<<(int i)
 785 {
 786     wxString str;
 787     str.Printf(wxT("%d"), i);
 788     AppendText(str);
 789     return *TEXTCTRL(this);
 790 }
 791
 792 wxTextCtrl& wxTextCtrlBase::operator<<(long i)
 793 {
 794     wxString str;
 795     str.Printf(wxT("%ld"), i);
 796     AppendText(str);
 797     return *TEXTCTRL(this);
 798 }
 799
 800 wxTextCtrl& wxTextCtrlBase::operator<<(const wxChar c)
 801 {
 802     return operator<<(wxString(c));
 803 }
 804
 805 // ----------------------------------------------------------------------------
 806 // streambuf methods implementation
 807 // ----------------------------------------------------------------------------
 808
 809 #if wxHAS_TEXT_WINDOW_STREAM
 810
 811 int wxTextCtrlBase::overflow(int c)
 812 {
 813     AppendText((wxChar)c);
 814
 815     // return something different from EOF
 816     return 0;
 817 }
 818
 819 #endif // wxHAS_TEXT_WINDOW_STREAM
 820
 821 // ----------------------------------------------------------------------------
 822 // emulating key presses
 823 // ----------------------------------------------------------------------------
 824
 825 bool wxTextCtrlBase::EmulateKeyPress(const wxKeyEvent& event)
 826 {
 827     // we have a native implementation for Win32 and so don't need this one
 828 #ifndef __WIN32__
 829     wxChar ch = 0;
 830     int keycode = event.GetKeyCode();
 831     switch ( keycode )
 832     {
 833         case WXK_NUMPAD0:
 834         case WXK_NUMPAD1:
 835         case WXK_NUMPAD2:
 836         case WXK_NUMPAD3:
 837         case WXK_NUMPAD4:
 838         case WXK_NUMPAD5:
 839         case WXK_NUMPAD6:
 840         case WXK_NUMPAD7:
 841         case WXK_NUMPAD8:
 842         case WXK_NUMPAD9:
 843             ch = (wxChar)(_T('0') + keycode - WXK_NUMPAD0);
 844             break;
 845
 846         case WXK_MULTIPLY:
 847         case WXK_NUMPAD_MULTIPLY:
 848             ch = _T('*');
 849             break;
 850
 851         case WXK_ADD:
 852         case WXK_NUMPAD_ADD:
 853             ch = _T('+');
 854             break;
 855
 856         case WXK_SUBTRACT:
 857         case WXK_NUMPAD_SUBTRACT:
 858             ch = _T('-');
 859             break;
 860
 861         case WXK_DECIMAL:
 862         case WXK_NUMPAD_DECIMAL:
 863             ch = _T('.');
 864             break;
 865
 866         case WXK_DIVIDE:
 867         case WXK_NUMPAD_DIVIDE:
 868             ch = _T('/');
 869             break;
 870
 871         case WXK_DELETE:
 872         case WXK_NUMPAD_DELETE:
 873             // delete the character at cursor
 874             {
 875                 const long pos = GetInsertionPoint();
 876                 if ( pos < GetLastPosition() )
 877                     Remove(pos, pos + 1);
 878             }
 879             break;
 880
 881         case WXK_BACK:
 882             // delete the character before the cursor
 883             {
 884                 const long pos = GetInsertionPoint();
 885                 if ( pos > 0 )
 886                     Remove(pos - 1, pos);
 887             }
 888             break;
 889
 890         default:
 891 #if wxUSE_UNICODE
 892             if ( event.GetUnicodeKey() )
 893             {
 894                 ch = event.GetUnicodeKey();
 895             }
 896             else
 897 #endif
 898             if ( keycode < 256 && keycode >= 0 && wxIsprint(keycode) )
 899             {
 900                 // FIXME this is not going to work for non letters...
 901                 if ( !event.ShiftDown() )
 902                 {
 903                     keycode = wxTolower(keycode);
 904                 }
 905
 906                 ch = (wxChar)keycode;
 907             }
 908             else
 909             {
 910                 ch = _T('\0');
 911             }
 912     }
 913
 914     if ( ch )
 915     {
 916         WriteText(ch);
 917
 918         return true;
 919     }
 920 #else // __WIN32__
 921     wxUnusedVar(event);
 922 #endif // !__WIN32__/__WIN32__
 923
 924     return false;
 925 }
 926
 927 // do the window-specific processing after processing the update event
 928 void wxTextCtrlBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
 929 {
 930     // call inherited, but skip the wxControl's version, and call directly the
 931     // wxWindow's one instead, because the only reason why we are overriding this
 932     // function is that we want to use SetValue() instead of wxControl::SetLabel()
 933     wxWindowBase::DoUpdateWindowUI(event);
 934
 935     // update text
 936     if ( event.GetSetText() )
 937     {
 938         if ( event.GetText() != GetValue() )
 939             SetValue(event.GetText());
 940     }
 941 }
 942
 943 // ----------------------------------------------------------------------------
 944 // hit testing
 945 // ----------------------------------------------------------------------------
 946
 947 wxTextCtrlHitTestResult
 948 wxTextAreaBase::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
 949 {
 950     // implement in terms of the other overload as the native ports typically
 951     // can get the position and not (x, y) pair directly (although wxUniv
 952     // directly gets x and y -- and so overrides this method as well)
 953     long pos;
 954     wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
 955
 956     if ( rc != wxTE_HT_UNKNOWN )
 957     {
 958         PositionToXY(pos, x, y);
 959     }
 960
 961     return rc;
 962 }
 963
 964 wxTextCtrlHitTestResult
 965 wxTextAreaBase::HitTest(const wxPoint& WXUNUSED(pt), long * WXUNUSED(pos)) const
 966 {
 967     // not implemented
 968     return wxTE_HT_UNKNOWN;
 969 }
 970
 971 // ----------------------------------------------------------------------------
 972 // events
 973 // ----------------------------------------------------------------------------
 974
 975 /* static */
 976 bool wxTextCtrlBase::SendTextUpdatedEvent(wxWindow *win)
 977 {
 978     wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, win->GetId());
 979
 980     // do not do this as it could be very inefficient if the text control
 981     // contains a lot of text and we're not using ref-counted wxString
 982     // implementation -- instead, event.GetString() will query the control for
 983     // its current text if needed
 984     //event.SetString(win->GetValue());
 985
 986     event.SetEventObject(win);
 987     return win->GetEventHandler()->ProcessEvent(event);
 988 }
 989
 990 #else // !wxUSE_TEXTCTRL
 991
 992 // define this one even if !wxUSE_TEXTCTRL because it is also used by other
 993 // controls (wxComboBox and wxSpinCtrl)
 994
 995 DEFINE_EVENT_TYPE(wxEVT_COMMAND_TEXT_UPDATED)
 996
 997 #endif // wxUSE_TEXTCTRL/!wxUSE_TEXTCTRL