src/common/textcmn.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/common/textcmn.cpp
   3 // Purpose:     implementation of platform-independent functions of wxTextCtrl
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     13.07.99
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) wxWidgets team
   9 // Licence:     wxWindows licence
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // for compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20     #pragma hdrstop
  21 #endif
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/event.h"
  25 #endif // WX_PRECOMP
  26
  27 #if wxUSE_TEXTCTRL
  28
  29 #include "wx/textctrl.h"
  30
  31 #ifndef WX_PRECOMP
  32     #include "wx/intl.h"
  33     #include "wx/log.h"
  34 #endif // WX_PRECOMP
  35
  36 #include "wx/ffile.h"
  37
  38 extern WXDLLEXPORT_DATA(const char) wxTextCtrlNameStr[] = "text";
  39
  40 // ----------------------------------------------------------------------------
  41 // macros
  42 // ----------------------------------------------------------------------------
  43
  44 // we don't have any objects of type wxTextCtrlBase in the program, only
  45 // wxTextCtrl, so this cast is safe
  46 #define TEXTCTRL(ptr)   ((wxTextCtrl *)(ptr))
  47
  48 // ============================================================================
  49 // implementation
  50 // ============================================================================
  51
  52 // ----------------------------------------------------------------------------
  53 // XTI
  54 // ----------------------------------------------------------------------------
  55
  56 wxDEFINE_FLAGS( wxTextCtrlStyle )
  57 wxBEGIN_FLAGS( wxTextCtrlStyle )
  58 // new style border flags, we put them first to
  59 // use them for streaming out
  60 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
  61 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
  62 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
  63 wxFLAGS_MEMBER(wxBORDER_RAISED)
  64 wxFLAGS_MEMBER(wxBORDER_STATIC)
  65 wxFLAGS_MEMBER(wxBORDER_NONE)
  66
  67 // old style border flags
  68 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
  69 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
  70 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
  71 wxFLAGS_MEMBER(wxRAISED_BORDER)
  72 wxFLAGS_MEMBER(wxSTATIC_BORDER)
  73 wxFLAGS_MEMBER(wxBORDER)
  74
  75 // standard window styles
  76 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
  77 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
  78 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
  79 wxFLAGS_MEMBER(wxWANTS_CHARS)
  80 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
  81 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
  82 wxFLAGS_MEMBER(wxVSCROLL)
  83 wxFLAGS_MEMBER(wxHSCROLL)
  84
  85 wxFLAGS_MEMBER(wxTE_PROCESS_ENTER)
  86 wxFLAGS_MEMBER(wxTE_PROCESS_TAB)
  87 wxFLAGS_MEMBER(wxTE_MULTILINE)
  88 wxFLAGS_MEMBER(wxTE_PASSWORD)
  89 wxFLAGS_MEMBER(wxTE_READONLY)
  90 wxFLAGS_MEMBER(wxHSCROLL)
  91 wxFLAGS_MEMBER(wxTE_RICH)
  92 wxFLAGS_MEMBER(wxTE_RICH2)
  93 wxFLAGS_MEMBER(wxTE_AUTO_URL)
  94 wxFLAGS_MEMBER(wxTE_NOHIDESEL)
  95 wxFLAGS_MEMBER(wxTE_LEFT)
  96 wxFLAGS_MEMBER(wxTE_CENTRE)
  97 wxFLAGS_MEMBER(wxTE_RIGHT)
  98 wxFLAGS_MEMBER(wxTE_DONTWRAP)
  99 wxFLAGS_MEMBER(wxTE_CHARWRAP)
 100 wxFLAGS_MEMBER(wxTE_WORDWRAP)
 101 wxEND_FLAGS( wxTextCtrlStyle )
 102
 103 wxIMPLEMENT_DYNAMIC_CLASS_XTI(wxTextCtrl, wxControl, "wx/textctrl.h")
 104
 105 wxBEGIN_PROPERTIES_TABLE(wxTextCtrl)
 106 wxEVENT_PROPERTY( TextUpdated, wxEVT_COMMAND_TEXT_UPDATED, wxCommandEvent )
 107 wxEVENT_PROPERTY( TextEnter, wxEVT_COMMAND_TEXT_ENTER, wxCommandEvent )
 108
 109 wxPROPERTY( Font, wxFont, SetFont, GetFont , wxEMPTY_PARAMETER_VALUE, \
 110            0 /*flags*/, wxT("Helpstring"), wxT("group") )
 111 wxPROPERTY( Value, wxString, SetValue, GetValue, wxString(), \
 112            0 /*flags*/, wxT("Helpstring"), wxT("group"))
 113
 114 wxPROPERTY_FLAGS( WindowStyle, wxTextCtrlStyle, long, SetWindowStyleFlag, \
 115                  GetWindowStyleFlag, wxEMPTY_PARAMETER_VALUE, 0 /*flags*/, \
 116                  wxT("Helpstring"), wxT("group")) // style
 117 wxEND_PROPERTIES_TABLE()
 118
 119 wxEMPTY_HANDLERS_TABLE(wxTextCtrl)
 120
 121 wxCONSTRUCTOR_6( wxTextCtrl, wxWindow*, Parent, wxWindowID, Id, \
 122                 wxString, Value, wxPoint, Position, wxSize, Size, \
 123                 long, WindowStyle)
 124
 125
 126 IMPLEMENT_DYNAMIC_CLASS(wxTextUrlEvent, wxCommandEvent)
 127
 128 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_UPDATED, wxCommandEvent );
 129 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_ENTER, wxCommandEvent );
 130 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_URL, wxTextUrlEvent );
 131 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_MAXLEN, wxCommandEvent );
 132
 133 IMPLEMENT_ABSTRACT_CLASS(wxTextCtrlBase, wxControl)
 134
 135 // ============================================================================
 136 // wxTextAttr implementation
 137 // ============================================================================
 138
 139 wxTextAttr::wxTextAttr(const wxColour& colText,
 140                const wxColour& colBack,
 141                const wxFont& font,
 142                wxTextAttrAlignment alignment): m_textAlignment(alignment), m_colText(colText), m_colBack(colBack)
 143 {
 144     Init();
 145
 146     if (m_colText.IsOk()) m_flags |= wxTEXT_ATTR_TEXT_COLOUR;
 147     if (m_colBack.IsOk()) m_flags |= wxTEXT_ATTR_BACKGROUND_COLOUR;
 148     if (alignment != wxTEXT_ALIGNMENT_DEFAULT)
 149         m_flags |= wxTEXT_ATTR_ALIGNMENT;
 150
 151     GetFontAttributes(font);
 152 }
 153
 154 // Initialisation
 155 void wxTextAttr::Init()
 156 {
 157     m_textAlignment = wxTEXT_ALIGNMENT_DEFAULT;
 158     m_flags = 0;
 159     m_leftIndent = 0;
 160     m_leftSubIndent = 0;
 161     m_rightIndent = 0;
 162
 163     m_fontSize = 12;
 164     m_fontStyle = wxFONTSTYLE_NORMAL;
 165     m_fontWeight = wxFONTWEIGHT_NORMAL;
 166     m_fontUnderlined = false;
 167     m_fontStrikethrough = false;
 168     m_fontEncoding = wxFONTENCODING_DEFAULT;
 169     m_fontFamily = wxFONTFAMILY_DEFAULT;
 170
 171     m_paragraphSpacingAfter = 0;
 172     m_paragraphSpacingBefore = 0;
 173     m_lineSpacing = 0;
 174     m_bulletStyle = wxTEXT_ATTR_BULLET_STYLE_NONE;
 175     m_textEffects = wxTEXT_ATTR_EFFECT_NONE;
 176     m_textEffectFlags = wxTEXT_ATTR_EFFECT_NONE;
 177     m_outlineLevel = 0;
 178     m_bulletNumber = 0;
 179 }
 180
 181 // Copy
 182 void wxTextAttr::Copy(const wxTextAttr& attr)
 183 {
 184     m_colText = attr.m_colText;
 185     m_colBack = attr.m_colBack;
 186     m_textAlignment = attr.m_textAlignment;
 187     m_leftIndent = attr.m_leftIndent;
 188     m_leftSubIndent = attr.m_leftSubIndent;
 189     m_rightIndent = attr.m_rightIndent;
 190     m_tabs = attr.m_tabs;
 191     m_flags = attr.m_flags;
 192
 193     m_fontSize = attr.m_fontSize;
 194     m_fontStyle = attr.m_fontStyle;
 195     m_fontWeight = attr.m_fontWeight;
 196     m_fontUnderlined = attr.m_fontUnderlined;
 197     m_fontStrikethrough = attr.m_fontStrikethrough;
 198     m_fontFaceName = attr.m_fontFaceName;
 199     m_fontEncoding = attr.m_fontEncoding;
 200     m_fontFamily = attr.m_fontFamily;
 201     m_textEffects = attr.m_textEffects;
 202     m_textEffectFlags = attr.m_textEffectFlags;
 203
 204     m_paragraphSpacingAfter = attr.m_paragraphSpacingAfter;
 205     m_paragraphSpacingBefore = attr.m_paragraphSpacingBefore;
 206     m_lineSpacing = attr.m_lineSpacing;
 207     m_characterStyleName = attr.m_characterStyleName;
 208     m_paragraphStyleName = attr.m_paragraphStyleName;
 209     m_listStyleName = attr.m_listStyleName;
 210     m_bulletStyle = attr.m_bulletStyle;
 211     m_bulletNumber = attr.m_bulletNumber;
 212     m_bulletText = attr.m_bulletText;
 213     m_bulletFont = attr.m_bulletFont;
 214     m_bulletName = attr.m_bulletName;
 215     m_outlineLevel = attr.m_outlineLevel;
 216
 217     m_urlTarget = attr.m_urlTarget;
 218 }
 219
 220 // operators
 221 void wxTextAttr::operator= (const wxTextAttr& attr)
 222 {
 223     Copy(attr);
 224 }
 225
 226 // Equality test
 227 bool wxTextAttr::operator== (const wxTextAttr& attr) const
 228 {
 229     return  GetFlags() == attr.GetFlags() &&
 230
 231             GetTextColour() == attr.GetTextColour() &&
 232             GetBackgroundColour() == attr.GetBackgroundColour() &&
 233
 234             GetAlignment() == attr.GetAlignment() &&
 235             GetLeftIndent() == attr.GetLeftIndent() &&
 236             GetLeftSubIndent() == attr.GetLeftSubIndent() &&
 237             GetRightIndent() == attr.GetRightIndent() &&
 238             TabsEq(GetTabs(), attr.GetTabs()) &&
 239
 240             GetParagraphSpacingAfter() == attr.GetParagraphSpacingAfter() &&
 241             GetParagraphSpacingBefore() == attr.GetParagraphSpacingBefore() &&
 242             GetLineSpacing() == attr.GetLineSpacing() &&
 243             GetCharacterStyleName() == attr.GetCharacterStyleName() &&
 244             GetParagraphStyleName() == attr.GetParagraphStyleName() &&
 245             GetListStyleName() == attr.GetListStyleName() &&
 246
 247             GetBulletStyle() == attr.GetBulletStyle() &&
 248             GetBulletText() == attr.GetBulletText() &&
 249             GetBulletNumber() == attr.GetBulletNumber() &&
 250             GetBulletFont() == attr.GetBulletFont() &&
 251             GetBulletName() == attr.GetBulletName() &&
 252
 253             GetTextEffects() == attr.GetTextEffects() &&
 254             GetTextEffectFlags() == attr.GetTextEffectFlags() &&
 255
 256             GetOutlineLevel() == attr.GetOutlineLevel() &&
 257
 258             GetFontSize() == attr.GetFontSize() &&
 259             GetFontStyle() == attr.GetFontStyle() &&
 260             GetFontWeight() == attr.GetFontWeight() &&
 261             GetFontUnderlined() == attr.GetFontUnderlined() &&
 262             GetFontFaceName() == attr.GetFontFaceName() &&
 263             GetFontEncoding() == attr.GetFontEncoding() &&
 264             GetFontFamily() == attr.GetFontFamily() &&
 265
 266             GetURL() == attr.GetURL();
 267 }
 268
 269 // Partial equality test. Only returns false if an attribute doesn't match.
 270 bool wxTextAttr::EqPartial(const wxTextAttr& attr) const
 271 {
 272     int flags = attr.GetFlags();
 273
 274     if ((flags & wxTEXT_ATTR_TEXT_COLOUR) && GetTextColour() != attr.GetTextColour())
 275         return false;
 276
 277     if ((flags & wxTEXT_ATTR_BACKGROUND_COLOUR) && GetBackgroundColour() != attr.GetBackgroundColour())
 278         return false;
 279
 280     if ((flags & wxTEXT_ATTR_FONT_FACE) &&
 281         GetFontFaceName() != attr.GetFontFaceName())
 282         return false;
 283
 284     if ((flags & wxTEXT_ATTR_FONT_SIZE) &&
 285         GetFontSize() != attr.GetFontSize())
 286         return false;
 287
 288     if ((flags & wxTEXT_ATTR_FONT_WEIGHT) &&
 289         GetFontWeight() != attr.GetFontWeight())
 290         return false;
 291
 292     if ((flags & wxTEXT_ATTR_FONT_ITALIC) &&
 293         GetFontStyle() != attr.GetFontStyle())
 294         return false;
 295
 296     if ((flags & wxTEXT_ATTR_FONT_UNDERLINE) &&
 297         GetFontUnderlined() != attr.GetFontUnderlined())
 298         return false;
 299
 300     if ((flags & wxTEXT_ATTR_FONT_ENCODING) &&
 301         GetFontEncoding() != attr.GetFontEncoding())
 302         return false;
 303
 304     if ((flags & wxTEXT_ATTR_FONT_FAMILY) &&
 305         GetFontFamily() != attr.GetFontFamily())
 306         return false;
 307
 308     if ((flags & wxTEXT_ATTR_URL) && GetURL() != attr.GetURL())
 309         return false;
 310
 311     if ((flags & wxTEXT_ATTR_ALIGNMENT) && GetAlignment() != attr.GetAlignment())
 312         return false;
 313
 314     if ((flags & wxTEXT_ATTR_LEFT_INDENT) &&
 315         ((GetLeftIndent() != attr.GetLeftIndent()) || (GetLeftSubIndent() != attr.GetLeftSubIndent())))
 316         return false;
 317
 318     if ((flags & wxTEXT_ATTR_RIGHT_INDENT) &&
 319         (GetRightIndent() != attr.GetRightIndent()))
 320         return false;
 321
 322     if ((flags & wxTEXT_ATTR_PARA_SPACING_AFTER) &&
 323         (GetParagraphSpacingAfter() != attr.GetParagraphSpacingAfter()))
 324         return false;
 325
 326     if ((flags & wxTEXT_ATTR_PARA_SPACING_BEFORE) &&
 327         (GetParagraphSpacingBefore() != attr.GetParagraphSpacingBefore()))
 328         return false;
 329
 330     if ((flags & wxTEXT_ATTR_LINE_SPACING) &&
 331         (GetLineSpacing() != attr.GetLineSpacing()))
 332         return false;
 333
 334     if ((flags & wxTEXT_ATTR_CHARACTER_STYLE_NAME) &&
 335         (GetCharacterStyleName() != attr.GetCharacterStyleName()))
 336         return false;
 337
 338     if ((flags & wxTEXT_ATTR_PARAGRAPH_STYLE_NAME) &&
 339         (GetParagraphStyleName() != attr.GetParagraphStyleName()))
 340         return false;
 341
 342     if ((flags & wxTEXT_ATTR_LIST_STYLE_NAME) &&
 343         (GetListStyleName() != attr.GetListStyleName()))
 344         return false;
 345
 346     if ((flags & wxTEXT_ATTR_BULLET_STYLE) &&
 347         (GetBulletStyle() != attr.GetBulletStyle()))
 348          return false;
 349
 350     if ((flags & wxTEXT_ATTR_BULLET_NUMBER) &&
 351         (GetBulletNumber() != attr.GetBulletNumber()))
 352          return false;
 353
 354     if ((flags & wxTEXT_ATTR_BULLET_TEXT) &&
 355         (GetBulletText() != attr.GetBulletText()) &&
 356         (GetBulletFont() != attr.GetBulletFont()))
 357          return false;
 358
 359     if ((flags & wxTEXT_ATTR_BULLET_NAME) &&
 360         (GetBulletName() != attr.GetBulletName()))
 361          return false;
 362
 363     if ((flags & wxTEXT_ATTR_TABS) &&
 364         !TabsEq(GetTabs(), attr.GetTabs()))
 365         return false;
 366
 367     if ((flags & wxTEXT_ATTR_PAGE_BREAK) &&
 368         (HasPageBreak() != attr.HasPageBreak()))
 369          return false;
 370
 371     if (flags & wxTEXT_ATTR_EFFECTS)
 372     {
 373         if (HasTextEffects() != attr.HasTextEffects())
 374             return false;
 375         if (!BitlistsEqPartial(GetTextEffects(), attr.GetTextEffects(), attr.GetTextEffectFlags()))
 376             return false;
 377     }
 378
 379     if ((flags & wxTEXT_ATTR_OUTLINE_LEVEL) &&
 380         (GetOutlineLevel() != attr.GetOutlineLevel()))
 381          return false;
 382
 383     return true;
 384 }
 385
 386 // Create font from font attributes.
 387 wxFont wxTextAttr::GetFont() const
 388 {
 389     if ( !HasFont() )
 390         return wxNullFont;
 391
 392     int fontSize = 10;
 393     if (HasFontSize())
 394         fontSize = GetFontSize();
 395
 396     int fontStyle = wxNORMAL;
 397     if (HasFontItalic())
 398         fontStyle = GetFontStyle();
 399
 400     int fontWeight = wxNORMAL;
 401     if (HasFontWeight())
 402         fontWeight = GetFontWeight();
 403
 404     bool underlined = false;
 405     if (HasFontUnderlined())
 406         underlined = GetFontUnderlined();
 407
 408     bool strikethrough = false;
 409     if ( HasFontStrikethrough() )
 410         strikethrough = GetFontStrikethrough();
 411
 412     wxString fontFaceName;
 413     if (HasFontFaceName())
 414         fontFaceName = GetFontFaceName();
 415
 416     wxFontEncoding encoding = wxFONTENCODING_DEFAULT;
 417     if (HasFontEncoding())
 418         encoding = GetFontEncoding();
 419
 420     wxFontFamily fontFamily = wxFONTFAMILY_DEFAULT;
 421     if (HasFontFamily())
 422         fontFamily = GetFontFamily();
 423
 424     wxFont font(fontSize, fontFamily, fontStyle, fontWeight, underlined, fontFaceName, encoding);
 425     if ( strikethrough )
 426         font.SetStrikethrough( true );
 427     return font;
 428 }
 429
 430 // Get attributes from font.
 431 bool wxTextAttr::GetFontAttributes(const wxFont& font, int flags)
 432 {
 433     if (!font.IsOk())
 434         return false;
 435
 436     if (flags & wxTEXT_ATTR_FONT_SIZE)
 437         m_fontSize = font.GetPointSize();
 438
 439     if (flags & wxTEXT_ATTR_FONT_ITALIC)
 440         m_fontStyle = font.GetStyle();
 441
 442     if (flags & wxTEXT_ATTR_FONT_WEIGHT)
 443         m_fontWeight = font.GetWeight();
 444
 445     if (flags & wxTEXT_ATTR_FONT_UNDERLINE)
 446         m_fontUnderlined = font.GetUnderlined();
 447
 448     if (flags & wxTEXT_ATTR_FONT_STRIKETHROUGH)
 449         m_fontStrikethrough = font.GetStrikethrough();
 450
 451     if (flags & wxTEXT_ATTR_FONT_FACE)
 452         m_fontFaceName = font.GetFaceName();
 453
 454     if (flags & wxTEXT_ATTR_FONT_ENCODING)
 455         m_fontEncoding = font.GetEncoding();
 456
 457     if (flags & wxTEXT_ATTR_FONT_FAMILY)
 458     {
 459         // wxFont might not know its family, avoid setting m_fontFamily to an
 460         // invalid value and rather pretend that we don't have any font family
 461         // information at all in this case
 462         const wxFontFamily fontFamily = font.GetFamily();
 463         if ( fontFamily == wxFONTFAMILY_UNKNOWN )
 464             flags &= ~wxTEXT_ATTR_FONT_FAMILY;
 465         else
 466             m_fontFamily = fontFamily;
 467     }
 468
 469     m_flags |= flags;
 470
 471     return true;
 472 }
 473
 474 // Resets bits in destination so new attributes aren't merged with mutually exclusive ones
 475 static bool wxResetIncompatibleBits(const int mask, const int srcFlags, int& destFlags, int& destBits)
 476 {
 477     if ((srcFlags & mask) && (destFlags & mask))
 478     {
 479         destBits &= ~mask;
 480         destFlags &= ~mask;
 481     }
 482
 483     return true;
 484 }
 485
 486 bool wxTextAttr::Apply(const wxTextAttr& style, const wxTextAttr* compareWith)
 487 {
 488     wxTextAttr& destStyle = (*this);
 489
 490     if (style.HasFontWeight())
 491     {
 492         if (!(compareWith && compareWith->HasFontWeight() && compareWith->GetFontWeight() == style.GetFontWeight()))
 493             destStyle.SetFontWeight(style.GetFontWeight());
 494     }
 495
 496     if (style.HasFontSize())
 497     {
 498         if (!(compareWith && compareWith->HasFontSize() && compareWith->GetFontSize() == style.GetFontSize()))
 499             destStyle.SetFontSize(style.GetFontSize());
 500     }
 501
 502     if (style.HasFontItalic())
 503     {
 504         if (!(compareWith && compareWith->HasFontItalic() && compareWith->GetFontStyle() == style.GetFontStyle()))
 505             destStyle.SetFontStyle(style.GetFontStyle());
 506     }
 507
 508     if (style.HasFontUnderlined())
 509     {
 510         if (!(compareWith && compareWith->HasFontUnderlined() && compareWith->GetFontUnderlined() == style.GetFontUnderlined()))
 511             destStyle.SetFontUnderlined(style.GetFontUnderlined());
 512     }
 513
 514     if (style.HasFontStrikethrough())
 515     {
 516         if (!(compareWith && compareWith->HasFontStrikethrough() && compareWith->GetFontStrikethrough() == style.GetFontStrikethrough()))
 517             destStyle.SetFontStrikethrough(style.GetFontStrikethrough());
 518     }
 519
 520     if (style.HasFontFaceName())
 521     {
 522         if (!(compareWith && compareWith->HasFontFaceName() && compareWith->GetFontFaceName() == style.GetFontFaceName()))
 523             destStyle.SetFontFaceName(style.GetFontFaceName());
 524     }
 525
 526     if (style.HasFontEncoding())
 527     {
 528         if (!(compareWith && compareWith->HasFontEncoding() && compareWith->GetFontEncoding() == style.GetFontEncoding()))
 529             destStyle.SetFontEncoding(style.GetFontEncoding());
 530     }
 531
 532     if (style.HasFontFamily())
 533     {
 534         if (!(compareWith && compareWith->HasFontFamily() && compareWith->GetFontFamily() == style.GetFontFamily()))
 535             destStyle.SetFontFamily(style.GetFontFamily());
 536     }
 537
 538     if (style.GetTextColour().IsOk() && style.HasTextColour())
 539     {
 540         if (!(compareWith && compareWith->HasTextColour() && compareWith->GetTextColour() == style.GetTextColour()))
 541             destStyle.SetTextColour(style.GetTextColour());
 542     }
 543
 544     if (style.GetBackgroundColour().IsOk() && style.HasBackgroundColour())
 545     {
 546         if (!(compareWith && compareWith->HasBackgroundColour() && compareWith->GetBackgroundColour() == style.GetBackgroundColour()))
 547             destStyle.SetBackgroundColour(style.GetBackgroundColour());
 548     }
 549
 550     if (style.HasAlignment())
 551     {
 552         if (!(compareWith && compareWith->HasAlignment() && compareWith->GetAlignment() == style.GetAlignment()))
 553             destStyle.SetAlignment(style.GetAlignment());
 554     }
 555
 556     if (style.HasTabs())
 557     {
 558         if (!(compareWith && compareWith->HasTabs() && TabsEq(compareWith->GetTabs(), style.GetTabs())))
 559             destStyle.SetTabs(style.GetTabs());
 560     }
 561
 562     if (style.HasLeftIndent())
 563     {
 564         if (!(compareWith && compareWith->HasLeftIndent() && compareWith->GetLeftIndent() == style.GetLeftIndent()
 565                           && compareWith->GetLeftSubIndent() == style.GetLeftSubIndent()))
 566             destStyle.SetLeftIndent(style.GetLeftIndent(), style.GetLeftSubIndent());
 567     }
 568
 569     if (style.HasRightIndent())
 570     {
 571         if (!(compareWith && compareWith->HasRightIndent() && compareWith->GetRightIndent() == style.GetRightIndent()))
 572             destStyle.SetRightIndent(style.GetRightIndent());
 573     }
 574
 575     if (style.HasParagraphSpacingAfter())
 576     {
 577         if (!(compareWith && compareWith->HasParagraphSpacingAfter() && compareWith->GetParagraphSpacingAfter() == style.GetParagraphSpacingAfter()))
 578             destStyle.SetParagraphSpacingAfter(style.GetParagraphSpacingAfter());
 579     }
 580
 581     if (style.HasParagraphSpacingBefore())
 582     {
 583         if (!(compareWith && compareWith->HasParagraphSpacingBefore() && compareWith->GetParagraphSpacingBefore() == style.GetParagraphSpacingBefore()))
 584             destStyle.SetParagraphSpacingBefore(style.GetParagraphSpacingBefore());
 585     }
 586
 587     if (style.HasLineSpacing())
 588     {
 589         if (!(compareWith && compareWith->HasLineSpacing() && compareWith->GetLineSpacing() == style.GetLineSpacing()))
 590             destStyle.SetLineSpacing(style.GetLineSpacing());
 591     }
 592
 593     if (style.HasCharacterStyleName())
 594     {
 595         if (!(compareWith && compareWith->HasCharacterStyleName() && compareWith->GetCharacterStyleName() == style.GetCharacterStyleName()))
 596             destStyle.SetCharacterStyleName(style.GetCharacterStyleName());
 597     }
 598
 599     if (style.HasParagraphStyleName())
 600     {
 601         if (!(compareWith && compareWith->HasParagraphStyleName() && compareWith->GetParagraphStyleName() == style.GetParagraphStyleName()))
 602             destStyle.SetParagraphStyleName(style.GetParagraphStyleName());
 603     }
 604
 605     if (style.HasListStyleName())
 606     {
 607         if (!(compareWith && compareWith->HasListStyleName() && compareWith->GetListStyleName() == style.GetListStyleName()))
 608             destStyle.SetListStyleName(style.GetListStyleName());
 609     }
 610
 611     if (style.HasBulletStyle())
 612     {
 613         if (!(compareWith && compareWith->HasBulletStyle() && compareWith->GetBulletStyle() == style.GetBulletStyle()))
 614             destStyle.SetBulletStyle(style.GetBulletStyle());
 615     }
 616
 617     if (style.HasBulletText())
 618     {
 619         if (!(compareWith && compareWith->HasBulletText() && compareWith->GetBulletText() == style.GetBulletText()))
 620         {
 621             destStyle.SetBulletText(style.GetBulletText());
 622             destStyle.SetBulletFont(style.GetBulletFont());
 623         }
 624     }
 625
 626     if (style.HasBulletNumber())
 627     {
 628         if (!(compareWith && compareWith->HasBulletNumber() && compareWith->GetBulletNumber() == style.GetBulletNumber()))
 629             destStyle.SetBulletNumber(style.GetBulletNumber());
 630     }
 631
 632     if (style.HasBulletName())
 633     {
 634         if (!(compareWith && compareWith->HasBulletName() && compareWith->GetBulletName() == style.GetBulletName()))
 635             destStyle.SetBulletName(style.GetBulletName());
 636     }
 637
 638     if (style.HasURL())
 639     {
 640         if (!(compareWith && compareWith->HasURL() && compareWith->GetURL() == style.GetURL()))
 641             destStyle.SetURL(style.GetURL());
 642     }
 643
 644     if (style.HasPageBreak())
 645     {
 646         if (!(compareWith && compareWith->HasPageBreak()))
 647             destStyle.SetPageBreak();
 648     }
 649
 650     if (style.HasTextEffects())
 651     {
 652         if (!(compareWith && compareWith->HasTextEffects() && compareWith->GetTextEffects() == style.GetTextEffects()))
 653         {
 654             int destBits = destStyle.GetTextEffects();
 655             int destFlags = destStyle.GetTextEffectFlags();
 656
 657             int srcBits = style.GetTextEffects();
 658             int srcFlags = style.GetTextEffectFlags();
 659
 660             // Reset incompatible bits in the destination
 661             wxResetIncompatibleBits((wxTEXT_ATTR_EFFECT_SUPERSCRIPT|wxTEXT_ATTR_EFFECT_SUBSCRIPT), srcFlags, destFlags, destBits);
 662             wxResetIncompatibleBits((wxTEXT_ATTR_EFFECT_CAPITALS|wxTEXT_ATTR_EFFECT_SMALL_CAPITALS), srcFlags, destFlags, destBits);
 663             wxResetIncompatibleBits((wxTEXT_ATTR_EFFECT_STRIKETHROUGH|wxTEXT_ATTR_EFFECT_DOUBLE_STRIKETHROUGH), srcFlags, destFlags, destBits);
 664
 665             CombineBitlists(destBits, srcBits, destFlags, srcFlags);
 666
 667             destStyle.SetTextEffects(destBits);
 668             destStyle.SetTextEffectFlags(destFlags);
 669         }
 670     }
 671
 672     if (style.HasOutlineLevel())
 673     {
 674         if (!(compareWith && compareWith->HasOutlineLevel() && compareWith->GetOutlineLevel() == style.GetOutlineLevel()))
 675             destStyle.SetOutlineLevel(style.GetOutlineLevel());
 676     }
 677
 678     return true;
 679 }
 680
 681 /* static */
 682 wxTextAttr wxTextAttr::Combine(const wxTextAttr& attr,
 683                                const wxTextAttr& attrDef,
 684                                const wxTextCtrlBase *text)
 685 {
 686     wxFont font;
 687     if (attr.HasFont())
 688         font = attr.GetFont();
 689
 690     if ( !font.IsOk() )
 691     {
 692         if (attrDef.HasFont())
 693             font = attrDef.GetFont();
 694
 695         if ( text && !font.IsOk() )
 696             font = text->GetFont();
 697     }
 698
 699     wxColour colFg = attr.GetTextColour();
 700     if ( !colFg.IsOk() )
 701     {
 702         colFg = attrDef.GetTextColour();
 703
 704         if ( text && !colFg.IsOk() )
 705             colFg = text->GetForegroundColour();
 706     }
 707
 708     wxColour colBg = attr.GetBackgroundColour();
 709     if ( !colBg.IsOk() )
 710     {
 711         colBg = attrDef.GetBackgroundColour();
 712
 713         if ( text && !colBg.IsOk() )
 714             colBg = text->GetBackgroundColour();
 715     }
 716
 717     wxTextAttr newAttr(colFg, colBg, font);
 718
 719     if (attr.HasAlignment())
 720         newAttr.SetAlignment(attr.GetAlignment());
 721     else if (attrDef.HasAlignment())
 722         newAttr.SetAlignment(attrDef.GetAlignment());
 723
 724     if (attr.HasTabs())
 725         newAttr.SetTabs(attr.GetTabs());
 726     else if (attrDef.HasTabs())
 727         newAttr.SetTabs(attrDef.GetTabs());
 728
 729     if (attr.HasLeftIndent())
 730         newAttr.SetLeftIndent(attr.GetLeftIndent(), attr.GetLeftSubIndent());
 731     else if (attrDef.HasLeftIndent())
 732         newAttr.SetLeftIndent(attrDef.GetLeftIndent(), attr.GetLeftSubIndent());
 733
 734     if (attr.HasRightIndent())
 735         newAttr.SetRightIndent(attr.GetRightIndent());
 736     else if (attrDef.HasRightIndent())
 737         newAttr.SetRightIndent(attrDef.GetRightIndent());
 738
 739     return newAttr;
 740 }
 741
 742 /// Compare tabs
 743 bool wxTextAttr::TabsEq(const wxArrayInt& tabs1, const wxArrayInt& tabs2)
 744 {
 745     if (tabs1.GetCount() != tabs2.GetCount())
 746         return false;
 747
 748     size_t i;
 749     for (i = 0; i < tabs1.GetCount(); i++)
 750     {
 751         if (tabs1[i] != tabs2[i])
 752             return false;
 753     }
 754     return true;
 755 }
 756
 757 // Remove attributes
 758 bool wxTextAttr::RemoveStyle(wxTextAttr& destStyle, const wxTextAttr& style)
 759 {
 760     int flags = style.GetFlags();
 761     int destFlags = destStyle.GetFlags();
 762
 763     destStyle.SetFlags(destFlags & ~flags);
 764
 765     return true;
 766 }
 767
 768 /// Combine two bitlists, specifying the bits of interest with separate flags.
 769 bool wxTextAttr::CombineBitlists(int& valueA, int valueB, int& flagsA, int flagsB)
 770 {
 771     // We want to apply B's bits to A, taking into account each's flags which indicate which bits
 772     // are to be taken into account. A zero in B's bits should reset that bit in A but only if B's flags
 773     // indicate it.
 774
 775     // First, reset the 0 bits from B. We make a mask so we're only dealing with B's zero
 776     // bits at this point, ignoring any 1 bits in B or 0 bits in B that are not relevant.
 777     int valueA2 = ~(~valueB & flagsB) & valueA;
 778
 779     // Now combine the 1 bits.
 780     int valueA3 = (valueB & flagsB) | valueA2;
 781
 782     valueA = valueA3;
 783     flagsA = (flagsA | flagsB);
 784
 785     return true;
 786 }
 787
 788 /// Compare two bitlists
 789 bool wxTextAttr::BitlistsEqPartial(int valueA, int valueB, int flags)
 790 {
 791     int relevantBitsA = valueA & flags;
 792     int relevantBitsB = valueB & flags;
 793     return relevantBitsA == relevantBitsB;
 794 }
 795
 796 /// Split into paragraph and character styles
 797 bool wxTextAttr::SplitParaCharStyles(const wxTextAttr& style, wxTextAttr& parStyle, wxTextAttr& charStyle)
 798 {
 799     wxTextAttr defaultCharStyle1(style);
 800     wxTextAttr defaultParaStyle1(style);
 801     defaultCharStyle1.SetFlags(defaultCharStyle1.GetFlags()&wxTEXT_ATTR_CHARACTER);
 802     defaultParaStyle1.SetFlags(defaultParaStyle1.GetFlags()&wxTEXT_ATTR_PARAGRAPH);
 803
 804     charStyle.Apply(defaultCharStyle1);
 805     parStyle.Apply(defaultParaStyle1);
 806
 807     return true;
 808 }
 809
 810 // apply styling to text range
 811 bool wxTextCtrlBase::SetStyle(long WXUNUSED(start), long WXUNUSED(end),
 812                               const wxTextAttr& WXUNUSED(style))
 813 {
 814     // to be implemented in derived classes
 815     return false;
 816 }
 817
 818 // get the styling at the given position
 819 bool wxTextCtrlBase::GetStyle(long WXUNUSED(position), wxTextAttr& WXUNUSED(style))
 820 {
 821     // to be implemented in derived classes
 822     return false;
 823 }
 824
 825 // change default text attributes
 826 bool wxTextCtrlBase::SetDefaultStyle(const wxTextAttr& style)
 827 {
 828     // keep the old attributes if the new style doesn't specify them unless the
 829     // new style is empty - then reset m_defaultStyle (as there is no other way
 830     // to do it)
 831     if ( style.IsDefault() )
 832         m_defaultStyle = style;
 833     else
 834         m_defaultStyle = wxTextAttr::Combine(style, m_defaultStyle, this);
 835
 836     return true;
 837 }
 838
 839 // ----------------------------------------------------------------------------
 840 // file IO functions
 841 // ----------------------------------------------------------------------------
 842
 843 bool wxTextAreaBase::DoLoadFile(const wxString& filename, int WXUNUSED(fileType))
 844 {
 845 #if wxUSE_FFILE
 846     wxFFile file(filename);
 847     if ( file.IsOpened() )
 848     {
 849         wxString text;
 850         if ( file.ReadAll(&text) )
 851         {
 852             SetValue(text);
 853
 854             return true;
 855         }
 856     }
 857 #endif // wxUSE_FFILE
 858
 859     return false;
 860 }
 861
 862 bool wxTextCtrlBase::DoLoadFile(const wxString& filename, int fileType)
 863 {
 864     if ( wxTextAreaBase::DoLoadFile(filename, fileType) )
 865     {
 866         DiscardEdits();
 867         m_filename = filename;
 868         return true;
 869     }
 870     wxLogError(_("File couldn't be loaded."));
 871     return false;
 872 }
 873
 874 bool wxTextAreaBase::DoSaveFile(const wxString& filename, int WXUNUSED(fileType))
 875 {
 876 #if wxUSE_FFILE
 877     wxFFile file(filename, wxT("w"));
 878     return file.IsOpened() && file.Write(GetValue(), *wxConvCurrent);
 879 #else
 880     return false;
 881 #endif // wxUSE_FFILE
 882 }
 883
 884 bool wxTextAreaBase::SaveFile(const wxString& filename, int fileType)
 885 {
 886     wxString filenameToUse = filename.empty() ? m_filename : filename;
 887     if ( filenameToUse.empty() )
 888     {
 889         // what kind of message to give? is it an error or a program bug?
 890         wxLogDebug(wxT("Can't save textctrl to file without filename."));
 891
 892         return false;
 893     }
 894
 895     return DoSaveFile(filenameToUse, fileType);
 896 }
 897
 898 bool wxTextCtrlBase::DoSaveFile(const wxString& filename, int fileType)
 899 {
 900     if ( wxTextAreaBase::DoSaveFile(filename, fileType) )
 901     {
 902         // if it worked, save for future calls
 903         m_filename = filename;
 904
 905         // it's not modified any longer
 906         DiscardEdits();
 907
 908         return true;
 909     }
 910     return false;
 911 }
 912
 913 // ----------------------------------------------------------------------------
 914 // stream-like insertion operator
 915 // ----------------------------------------------------------------------------
 916
 917 wxTextCtrl& wxTextCtrlBase::operator<<(const wxString& s)
 918 {
 919     AppendText(s);
 920     return *TEXTCTRL(this);
 921 }
 922
 923 wxTextCtrl& wxTextCtrlBase::operator<<(double d)
 924 {
 925     return *this << wxString::Format("%.2f", d);
 926 }
 927
 928 wxTextCtrl& wxTextCtrlBase::operator<<(int i)
 929 {
 930     return *this << wxString::Format("%d", i);
 931 }
 932
 933 wxTextCtrl& wxTextCtrlBase::operator<<(long l)
 934 {
 935     return *this << wxString::Format("%ld", l);
 936 }
 937
 938 // ----------------------------------------------------------------------------
 939 // streambuf methods implementation
 940 // ----------------------------------------------------------------------------
 941
 942 #if wxHAS_TEXT_WINDOW_STREAM
 943
 944 int wxTextCtrlBase::overflow(int c)
 945 {
 946     AppendText((wxChar)c);
 947
 948     // return something different from EOF
 949     return 0;
 950 }
 951
 952 #endif // wxHAS_TEXT_WINDOW_STREAM
 953
 954 // ----------------------------------------------------------------------------
 955 // emulating key presses
 956 // ----------------------------------------------------------------------------
 957
 958 bool wxTextCtrlBase::EmulateKeyPress(const wxKeyEvent& event)
 959 {
 960     bool handled = false;
 961     // we have a native implementation for Win32 and so don't need this one
 962 #ifndef __WIN32__
 963     wxChar ch = 0;
 964     int keycode = event.GetKeyCode();
 965
 966     long from, to;
 967     GetSelection(&from,&to);
 968     long insert = GetInsertionPoint();
 969     long last = GetLastPosition();
 970
 971     // catch arrow left and right
 972
 973     switch ( keycode )
 974     {
 975         case WXK_LEFT:
 976             if ( event.ShiftDown() )
 977                 SetSelection( (from > 0 ? from - 1 : 0) , to );
 978             else
 979             {
 980                 if ( from != to )
 981                     insert = from;
 982                 else if ( insert > 0 )
 983                     insert -= 1;
 984                 SetInsertionPoint( insert );
 985             }
 986             handled = true;
 987             break;
 988         case WXK_RIGHT:
 989             if ( event.ShiftDown() )
 990                 SetSelection( from, (to < last ? to + 1 : last) );
 991             else
 992             {
 993                 if ( from != to )
 994                     insert = to;
 995                 else if ( insert < last )
 996                     insert += 1;
 997                 SetInsertionPoint( insert );
 998             }
 999             handled = true;
1000             break;
1001         case WXK_NUMPAD0:
1002         case WXK_NUMPAD1:
1003         case WXK_NUMPAD2:
1004         case WXK_NUMPAD3:
1005         case WXK_NUMPAD4:
1006         case WXK_NUMPAD5:
1007         case WXK_NUMPAD6:
1008         case WXK_NUMPAD7:
1009         case WXK_NUMPAD8:
1010         case WXK_NUMPAD9:
1011             ch = (wxChar)(wxT('0') + keycode - WXK_NUMPAD0);
1012             break;
1013
1014         case WXK_MULTIPLY:
1015         case WXK_NUMPAD_MULTIPLY:
1016             ch = wxT('*');
1017             break;
1018
1019         case WXK_ADD:
1020         case WXK_NUMPAD_ADD:
1021             ch = wxT('+');
1022             break;
1023
1024         case WXK_SUBTRACT:
1025         case WXK_NUMPAD_SUBTRACT:
1026             ch = wxT('-');
1027             break;
1028
1029         case WXK_DECIMAL:
1030         case WXK_NUMPAD_DECIMAL:
1031             ch = wxT('.');
1032             break;
1033
1034         case WXK_DIVIDE:
1035         case WXK_NUMPAD_DIVIDE:
1036             ch = wxT('/');
1037             break;
1038
1039         case WXK_DELETE:
1040         case WXK_NUMPAD_DELETE:
1041             // delete the character at cursor
1042             {
1043                 const long pos = GetInsertionPoint();
1044                 if ( pos < GetLastPosition() )
1045                     Remove(pos, pos + 1);
1046                 handled = true;
1047             }
1048             break;
1049
1050         case WXK_BACK:
1051             // delete the character before the cursor
1052             {
1053                 const long pos = GetInsertionPoint();
1054                 if ( pos > 0 )
1055                     Remove(pos - 1, pos);
1056                 handled = true;
1057             }
1058             break;
1059
1060         default:
1061 #if wxUSE_UNICODE
1062             if ( event.GetUnicodeKey() )
1063             {
1064                 ch = event.GetUnicodeKey();
1065             }
1066             else
1067 #endif
1068             if ( keycode < 256 && keycode >= 0 && wxIsprint(keycode) )
1069             {
1070                 // FIXME this is not going to work for non letters...
1071                 if ( !event.ShiftDown() )
1072                 {
1073                     keycode = wxTolower(keycode);
1074                 }
1075
1076                 ch = (wxChar)keycode;
1077             }
1078             else
1079             {
1080                 ch = wxT('\0');
1081             }
1082     }
1083
1084     if ( ch )
1085     {
1086         WriteText(ch);
1087
1088         handled = true;
1089     }
1090 #else // __WIN32__
1091     wxUnusedVar(event);
1092 #endif // !__WIN32__/__WIN32__
1093
1094     return handled;
1095 }
1096
1097 // do the window-specific processing after processing the update event
1098 void wxTextCtrlBase::DoUpdateWindowUI(wxUpdateUIEvent& event)
1099 {
1100     // call inherited, but skip the wxControl's version, and call directly the
1101     // wxWindow's one instead, because the only reason why we are overriding this
1102     // function is that we want to use SetValue() instead of wxControl::SetLabel()
1103     wxWindowBase::DoUpdateWindowUI(event);
1104
1105     // update text
1106     if ( event.GetSetText() )
1107     {
1108         if ( event.GetText() != GetValue() )
1109             SetValue(event.GetText());
1110     }
1111 }
1112
1113 // ----------------------------------------------------------------------------
1114 // hit testing
1115 // ----------------------------------------------------------------------------
1116
1117 wxTextCtrlHitTestResult
1118 wxTextAreaBase::HitTest(const wxPoint& pt, wxTextCoord *x, wxTextCoord *y) const
1119 {
1120     // implement in terms of the other overload as the native ports typically
1121     // can get the position and not (x, y) pair directly (although wxUniv
1122     // directly gets x and y -- and so overrides this method as well)
1123     long pos;
1124     wxTextCtrlHitTestResult rc = HitTest(pt, &pos);
1125
1126     if ( rc != wxTE_HT_UNKNOWN )
1127     {
1128         PositionToXY(pos, x, y);
1129     }
1130
1131     return rc;
1132 }
1133
1134 wxTextCtrlHitTestResult
1135 wxTextAreaBase::HitTest(const wxPoint& WXUNUSED(pt), long * WXUNUSED(pos)) const
1136 {
1137     // not implemented
1138     return wxTE_HT_UNKNOWN;
1139 }
1140
1141 wxPoint wxTextAreaBase::PositionToCoords(long pos) const
1142 {
1143     wxCHECK_MSG( IsValidPosition(pos), wxDefaultPosition,
1144                  wxS("Position argument out of range.") );
1145
1146     return DoPositionToCoords(pos);
1147 }
1148
1149 wxPoint wxTextAreaBase::DoPositionToCoords(long WXUNUSED(pos)) const
1150 {
1151     return wxDefaultPosition;
1152 }
1153
1154 #else // !wxUSE_TEXTCTRL
1155
1156 // define this one even if !wxUSE_TEXTCTRL because it is also used by other
1157 // controls (wxComboBox and wxSpinCtrl)
1158
1159 wxDEFINE_EVENT( wxEVT_COMMAND_TEXT_UPDATED, wxCommandEvent );
1160
1161 #endif // wxUSE_TEXTCTRL/!wxUSE_TEXTCTRL