interface/wx/richtext/richtextstyles.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        richtext/richtextstyles.h
   3 // Purpose:     interface of wxRichTextStyleListCtrl
   4 // Author:      wxWidgets team
   5 // RCS-ID:      $Id$
   6 // Licence:     wxWindows licence
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 /**
  10     @class wxRichTextStyleListCtrl
  11
  12     This class incorporates a wxRichTextStyleListBox and a choice control that
  13     allows the user to select the category of style to view.
  14
  15     It is demonstrated in the wxRichTextCtrl sample in @c samples/richtext.
  16
  17     To use wxRichTextStyleListCtrl, add the control to your window hierarchy and
  18     call wxRichTextStyleListCtrl::SetStyleType with one of
  19     wxRichTextStyleListBox::wxRICHTEXT_STYLE_ALL,
  20     wxRichTextStyleListBox::wxRICHTEXT_STYLE_PARAGRAPH,
  21     wxRichTextStyleListBox::wxRICHTEXT_STYLE_CHARACTER and
  22     wxRichTextStyleListBox::wxRICHTEXT_STYLE_LIST to set the current view.
  23
  24     Associate the control with a style sheet and rich text control with
  25     SetStyleSheet and SetRichTextCtrl, so that when a style is double-clicked,
  26     it is applied to the selection.
  27
  28     @beginStyleTable
  29     @style{wxRICHTEXTSTYLELIST_HIDE_TYPE_SELECTOR}
  30            This style hides the category selection control.
  31     @endStyleTable
  32
  33     @library{wxrichtext}
  34     @category{richtext}
  35 */
  36 class wxRichTextStyleListCtrl : public wxControl
  37 {
  38 public:
  39     //@{
  40     /**
  41         Constructors.
  42     */
  43     wxRichTextStyleListCtrl(wxWindow* parent,
  44                             wxWindowID id = wxID_ANY,
  45                             const wxPoint& pos = wxDefaultPosition,
  46                             const wxSize& size = wxDefaultSize,
  47                             long style = 0);
  48     wxRichTextStyleListCtrl();
  49     //@}
  50
  51     /**
  52         Creates the windows.
  53     */
  54     bool Create(wxWindow* parent, wxWindowID id = wxID_ANY,
  55                 const wxPoint& pos = wxDefaultPosition,
  56                 const wxSize& size = wxDefaultSize,
  57                 long style = 0);
  58
  59     /**
  60         Returns the associated rich text control, if any.
  61     */
  62     wxRichTextCtrl* GetRichTextCtrl() const;
  63
  64     /**
  65         Returns the wxChoice control used for selecting the style category.
  66     */
  67     wxChoice* GetStyleChoice() const;
  68
  69     /**
  70         Returns the wxListBox control used to view the style list.
  71     */
  72     wxRichTextStyleListBox* GetStyleListBox() const;
  73
  74     /**
  75         Returns the associated style sheet, if any.
  76     */
  77     wxRichTextStyleSheet* GetStyleSheet() const;
  78
  79     /**
  80         Returns the type of style to show in the list box.
  81     */
  82     wxRichTextStyleListBox::wxRichTextStyleType GetStyleType() const;
  83
  84     /**
  85         Associates the control with a wxRichTextCtrl.
  86     */
  87     void SetRichTextCtrl(wxRichTextCtrl* ctrl);
  88
  89     /**
  90         Associates the control with a style sheet.
  91     */
  92     void SetStyleSheet(wxRichTextStyleSheet* styleSheet);
  93
  94     /**
  95         Sets the style type to display.
  96
  97         One of
  98         - wxRichTextStyleListBox::wxRICHTEXT_STYLE_ALL,
  99         - wxRichTextStyleListBox::wxRICHTEXT_STYLE_PARAGRAPH,
 100         - wxRichTextStyleListBox::wxRICHTEXT_STYLE_CHARACTER
 101         - wxRichTextStyleListBox::wxRICHTEXT_STYLE_LIST.
 102     */
 103     void SetStyleType(wxRichTextStyleListBox::wxRichTextStyleType styleType);
 104
 105     /**
 106         Updates the style list box.
 107     */
 108     void UpdateStyles();
 109 };
 110
 111
 112
 113 /**
 114     @class wxRichTextStyleDefinition
 115
 116     This is a base class for paragraph and character styles.
 117
 118     @library{wxrichtext}
 119     @category{richtext}
 120 */
 121 class wxRichTextStyleDefinition : public wxObject
 122 {
 123 public:
 124     /**
 125         Constructor.
 126     */
 127     wxRichTextStyleDefinition(const wxString& name = wxEmptyString);
 128
 129     /**
 130         Destructor.
 131     */
 132     virtual ~wxRichTextStyleDefinition();
 133
 134     /**
 135         Returns the style on which this style is based.
 136     */
 137     const wxString& GetBaseStyle() const;
 138
 139     /**
 140         Returns the style's description.
 141     */
 142     const wxString& GetDescription() const;
 143
 144     /**
 145         Returns the style name.
 146     */
 147     const wxString& GetName() const;
 148
 149     //@{
 150     /**
 151         Returns the attributes associated with this style.
 152     */
 153     wxTextAttr GetStyle() const;
 154     const wxTextAttr GetStyle() const;
 155     //@}
 156
 157     /**
 158         Returns the style attributes combined with the attributes of the specified base
 159         style, if any. This function works recursively.
 160     */
 161     virtual wxTextAttr GetStyleMergedWithBase(const wxRichTextStyleSheet* sheet) const;
 162
 163     /**
 164         Sets the name of the style that this style is based on.
 165     */
 166     void SetBaseStyle(const wxString& name);
 167
 168     /**
 169         Sets the style description.
 170     */
 171     void SetDescription(const wxString& descr);
 172
 173     /**
 174         Sets the name of the style.
 175     */
 176     void SetName(const wxString& name);
 177
 178     /**
 179         Sets the attributes for this style.
 180     */
 181     void SetStyle(const wxTextAttr& style);
 182 };
 183
 184
 185
 186 /**
 187     @class wxRichTextParagraphStyleDefinition
 188
 189     This class represents a paragraph style definition, usually added to a
 190     wxRichTextStyleSheet.
 191
 192     @library{wxrichtext}
 193     @category{richtext}
 194 */
 195 class wxRichTextParagraphStyleDefinition : public wxRichTextStyleDefinition
 196 {
 197 public:
 198     /**
 199         Constructor.
 200     */
 201     wxRichTextParagraphStyleDefinition(const wxString& name = wxEmptyString);
 202
 203     /**
 204         Destructor.
 205     */
 206     virtual ~wxRichTextParagraphStyleDefinition();
 207
 208     /**
 209         Returns the style that should normally follow this style.
 210     */
 211     const wxString& GetNextStyle() const;
 212
 213     /**
 214         Sets the style that should normally follow this style.
 215     */
 216     void SetNextStyle(const wxString& name);
 217 };
 218
 219
 220
 221 /**
 222     @class wxRichTextStyleListBox
 223
 224     This is a listbox that can display the styles in a wxRichTextStyleSheet,
 225     and apply the selection to an associated wxRichTextCtrl.
 226
 227     See @c samples/richtext for an example of how to use it.
 228
 229     @library{wxrichtext}
 230     @category{richtext}
 231
 232     @see wxRichTextStyleComboCtrl, @ref overview_richtextctrl
 233 */
 234 class wxRichTextStyleListBox : public wxHtmlListBox
 235 {
 236 public:
 237     /**
 238         Constructor.
 239     */
 240     wxRichTextStyleListBox(wxWindow* parent,
 241                            wxWindowID id = wxID_ANY,
 242                            const wxPoint& pos = wxDefaultPosition,
 243                            const wxSize& size = wxDefaultSize,
 244                            long style = 0);
 245
 246     /**
 247         Destructor.
 248     */
 249     virtual ~wxRichTextStyleListBox();
 250
 251     /**
 252         Applies the @e ith style to the associated rich text control.
 253     */
 254     void ApplyStyle(int i);
 255
 256     /**
 257         Converts units in tenths of a millimetre to device units.
 258     */
 259     int ConvertTenthsMMToPixels(wxDC& dc, int units) const;
 260
 261     /**
 262         Creates a suitable HTML fragment for a definition.
 263     */
 264     wxString CreateHTML(wxRichTextStyleDefinition* def) const;
 265
 266     /**
 267         If the return value is @true, clicking on a style name in the list will
 268         immediately apply the style to the associated rich text control.
 269     */
 270     bool GetApplyOnSelection() const;
 271
 272     /**
 273         Returns the wxRichTextCtrl associated with this listbox.
 274     */
 275     wxRichTextCtrl* GetRichTextCtrl() const;
 276
 277     /**
 278         Gets a style for a listbox index.
 279     */
 280     wxRichTextStyleDefinition* GetStyle(size_t i) const;
 281
 282     /**
 283         Returns the style sheet associated with this listbox.
 284     */
 285     wxRichTextStyleSheet* GetStyleSheet() const;
 286
 287     /**
 288         Returns the type of style to show in the list box.
 289     */
 290     wxRichTextStyleListBox::wxRichTextStyleType GetStyleType() const;
 291
 292     /**
 293         Implements left click behaviour, applying the clicked style to the
 294         wxRichTextCtrl.
 295     */
 296     void OnLeftDown(wxMouseEvent& event);
 297
 298     /**
 299         Reacts to selection.
 300     */
 301     void OnSelect(wxCommandEvent& event);
 302
 303     /**
 304         If @a applyOnSelection is @true, clicking on a style name in the list will
 305         immediately apply the style to the associated rich text control.
 306     */
 307     void SetApplyOnSelection(bool applyOnSelection);
 308
 309     /**
 310         Associates the listbox with a wxRichTextCtrl.
 311     */
 312     void SetRichTextCtrl(wxRichTextCtrl* ctrl);
 313
 314     /**
 315         Associates the control with a style sheet.
 316     */
 317     void SetStyleSheet(wxRichTextStyleSheet* styleSheet);
 318
 319     /**
 320         Sets the style type to display. One of
 321         - wxRichTextStyleListBox::wxRICHTEXT_STYLE_ALL,
 322         - wxRichTextStyleListBox::wxRICHTEXT_STYLE_PARAGRAPH,
 323         - wxRichTextStyleListBox::wxRICHTEXT_STYLE_CHARACTER
 324         - wxRichTextStyleListBox::wxRICHTEXT_STYLE_LIST.
 325     */
 326     void SetStyleType(wxRichTextStyleListBox::wxRichTextStyleType styleType);
 327
 328     /**
 329         Updates the list from the associated style sheet.
 330     */
 331     void UpdateStyles();
 332
 333 protected:
 334
 335     /**
 336         Returns the HTML for this item.
 337     */
 338     virtual wxString OnGetItem(size_t n) const;
 339 };
 340
 341
 342
 343 /**
 344     @class wxRichTextStyleComboCtrl
 345
 346     This is a combo control that can display the styles in a wxRichTextStyleSheet,
 347     and apply the selection to an associated wxRichTextCtrl.
 348
 349     See @c samples/richtext for an example of how to use it.
 350
 351     @library{wxrichtext}
 352     @category{richtext}
 353
 354     @see wxRichTextStyleListBox, @ref overview_richtextctrl
 355 */
 356 class wxRichTextStyleComboCtrl : public wxComboCtrl
 357 {
 358 public:
 359     /**
 360         Constructor.
 361     */
 362     wxRichTextStyleComboCtrl(wxWindow* parent,
 363                              wxWindowID id = wxID_ANY,
 364                              const wxPoint& pos = wxDefaultPosition,
 365                              const wxSize& size = wxDefaultSize,
 366                              long style = 0);
 367
 368     /**
 369         Destructor.
 370     */
 371     virtual ~wxRichTextStyleComboCtrl();
 372
 373     /**
 374         Returns the wxRichTextCtrl associated with this control.
 375     */
 376     wxRichTextCtrl* GetRichTextCtrl() const;
 377
 378     /**
 379         Returns the style sheet associated with this control.
 380     */
 381     wxRichTextStyleSheet* GetStyleSheet() const;
 382
 383     /**
 384         Associates the control with a wxRichTextCtrl.
 385     */
 386     void SetRichTextCtrl(wxRichTextCtrl* ctrl);
 387
 388     /**
 389         Associates the control with a style sheet.
 390     */
 391     void SetStyleSheet(wxRichTextStyleSheet* styleSheet);
 392
 393     /**
 394         Updates the combo control from the associated style sheet.
 395     */
 396     void UpdateStyles();
 397 };
 398
 399
 400
 401 /**
 402     @class wxRichTextCharacterStyleDefinition
 403
 404     This class represents a character style definition, usually added to a
 405     wxRichTextStyleSheet.
 406
 407     @library{wxrichtext}
 408     @category{richtext}
 409 */
 410 class wxRichTextCharacterStyleDefinition : public wxRichTextStyleDefinition
 411 {
 412 public:
 413     /**
 414         Constructor.
 415     */
 416     wxRichTextCharacterStyleDefinition(const wxString& name = wxEmptyString);
 417
 418     /**
 419         Destructor.
 420     */
 421     virtual ~wxRichTextCharacterStyleDefinition();
 422 };
 423
 424
 425
 426 /**
 427     @class wxRichTextListStyleDefinition
 428
 429     This class represents a list style definition, usually added to a
 430     wxRichTextStyleSheet.
 431
 432     The class inherits paragraph attributes from wxRichTextStyleParagraphDefinition,
 433     and adds 10 further attribute objects, one for each level of a list.
 434     When applying a list style to a paragraph, the list style's base and
 435     appropriate level attributes are merged with the paragraph's existing attributes.
 436
 437     You can apply a list style to one or more paragraphs using wxRichTextCtrl::SetListStyle.
 438     You can also use the functions wxRichTextCtrl::NumberList, wxRichTextCtrl::PromoteList and
 439     wxRichTextCtrl::ClearListStyle.
 440
 441     As usual, there are wxRichTextBuffer versions of these functions
 442     so that you can apply them directly to a buffer without requiring a control.
 443
 444     @library{wxrichtext}
 445     @category{richtext}
 446 */
 447 class wxRichTextListStyleDefinition : public wxRichTextParagraphStyleDefinition
 448 {
 449 public:
 450     /**
 451         Constructor.
 452     */
 453     wxRichTextListStyleDefinition(const wxString& name = wxEmptyString);
 454
 455     /**
 456         Destructor.
 457     */
 458     virtual ~wxRichTextListStyleDefinition();
 459
 460     /**
 461         This function combines the given paragraph style with the list style's base
 462         attributes and level style matching the given indent, returning the combined attributes.
 463
 464         If @a styleSheet is specified, the base style for this definition will also be
 465         included in the result.
 466     */
 467     wxTextAttr CombineWithParagraphStyle(int indent,
 468                                          const wxTextAttr& paraStyle,
 469                                          wxRichTextStyleSheet* styleSheet = NULL);
 470
 471     /**
 472         This function finds the level (from 0 to 9) whose indentation attribute mostly
 473         closely matches @a indent (expressed in tenths of a millimetre).
 474     */
 475     int FindLevelForIndent(int indent) const;
 476
 477     /**
 478         This function combines the list style's base attributes and the level style
 479         matching the given indent, returning the combined attributes.
 480
 481         If @a styleSheet is specified, the base style for this definition will also be
 482         included in the result.
 483     */
 484     wxTextAttr GetCombinedStyle(int indent,
 485                                 wxRichTextStyleSheet* styleSheet = NULL);
 486
 487     /**
 488         This function combines the list style's base attributes and the style for the
 489         specified level, returning the combined attributes.
 490
 491         If @a styleSheet is specified, the base style for this definition will also be
 492         included in the result.
 493     */
 494     wxTextAttr GetCombinedStyleLevel(int level,
 495                                      wxRichTextStyleSheet* styleSheet = NULL) const;
 496
 497     /**
 498         Returns the style for the given level. @a level is a number between 0 and 9.
 499     */
 500     const wxTextAttr* GetLevelAttributes(int level) const;
 501
 502     /**
 503         Returns the number of levels. This is hard-wired to 10.
 504         Returns the style for the given level. @e level is a number between 0 and 9.
 505     */
 506     int GetLevelCount() const;
 507
 508     /**
 509         Returns @true if the given level has numbered list attributes.
 510     */
 511     bool IsNumbered(int level) const;
 512
 513     /**
 514         Sets the style for the given level. @a level is a number between 0 and 9.
 515         The first and most flexible form uses a wxTextAttr object, while the second
 516         form is for convenient setting of the most commonly-used attributes.
 517     */
 518     void SetLevelAttributes(int level, const wxTextAttr& attr);
 519 };
 520
 521
 522
 523 /**
 524     @class wxRichTextStyleSheet
 525
 526     A style sheet contains named paragraph and character styles that make it
 527     easy for a user to apply combinations of attributes to a wxRichTextCtrl.
 528
 529     You can use a wxRichTextStyleListBox in your user interface to show available
 530     styles to the user, and allow application of styles to the control.
 531
 532     @library{wxrichtext}
 533     @category{richtext}
 534 */
 535 class wxRichTextStyleSheet : public wxObject
 536 {
 537 public:
 538     /**
 539         Constructor.
 540     */
 541     wxRichTextStyleSheet();
 542
 543     /**
 544         Destructor.
 545     */
 546     virtual ~wxRichTextStyleSheet();
 547
 548     /**
 549         Adds a definition to the character style list.
 550     */
 551     bool AddCharacterStyle(wxRichTextCharacterStyleDefinition* def);
 552
 553     /**
 554         Adds a definition to the list style list.
 555     */
 556     bool AddListStyle(wxRichTextListStyleDefinition* def);
 557
 558     /**
 559         Adds a definition to the paragraph style list.
 560     */
 561     bool AddParagraphStyle(wxRichTextParagraphStyleDefinition* def);
 562
 563     /**
 564         Adds a definition to the appropriate style list.
 565     */
 566     bool AddStyle(wxRichTextStyleDefinition* def);
 567
 568     /**
 569         Deletes all styles.
 570     */
 571     void DeleteStyles();
 572
 573     /**
 574         Finds a character definition by name.
 575     */
 576     wxRichTextCharacterStyleDefinition* FindCharacterStyle(const wxString& name,
 577                                                            bool recurse = true) const;
 578
 579     /**
 580         Finds a list definition by name.
 581     */
 582     wxRichTextListStyleDefinition* FindListStyle(const wxString& name,
 583                                                  bool recurse = true) const;
 584
 585     /**
 586         Finds a paragraph definition by name.
 587     */
 588     wxRichTextParagraphStyleDefinition* FindParagraphStyle(const wxString& name,
 589                                                            bool recurse = true) const;
 590
 591     /**
 592         Finds a style definition by name.
 593     */
 594     wxRichTextStyleDefinition* FindStyle(const wxString& name) const;
 595
 596     /**
 597         Returns the @e nth character style.
 598     */
 599     wxRichTextCharacterStyleDefinition* GetCharacterStyle(size_t n) const;
 600
 601     /**
 602         Returns the number of character styles.
 603     */
 604     size_t GetCharacterStyleCount() const;
 605
 606     /**
 607         Returns the style sheet's description.
 608     */
 609     const wxString& GetDescription() const;
 610
 611     /**
 612         Returns the @e nth list style.
 613     */
 614     wxRichTextListStyleDefinition* GetListStyle(size_t n) const;
 615
 616     /**
 617         Returns the number of list styles.
 618     */
 619     size_t GetListStyleCount() const;
 620
 621     /**
 622         Returns the style sheet's name.
 623     */
 624     const wxString& GetName() const;
 625
 626     /**
 627         Returns the @e nth paragraph style.
 628     */
 629     wxRichTextParagraphStyleDefinition* GetParagraphStyle(size_t n) const;
 630
 631     /**
 632         Returns the number of paragraph styles.
 633     */
 634     size_t GetParagraphStyleCount() const;
 635
 636     /**
 637         Removes a character style.
 638     */
 639     bool RemoveCharacterStyle(wxRichTextStyleDefinition* def,
 640                               bool deleteStyle = false);
 641
 642     /**
 643         Removes a list style.
 644     */
 645     bool RemoveListStyle(wxRichTextStyleDefinition* def,
 646                          bool deleteStyle = false);
 647
 648     /**
 649         Removes a paragraph style.
 650     */
 651     bool RemoveParagraphStyle(wxRichTextStyleDefinition* def,
 652                               bool deleteStyle = false);
 653
 654     /**
 655         Removes a style.
 656     */
 657     bool RemoveStyle(wxRichTextStyleDefinition* def,
 658                      bool deleteStyle = false);
 659
 660     /**
 661         Sets the style sheet's description.
 662     */
 663     void SetDescription(const wxString& descr);
 664
 665     /**
 666         Sets the style sheet's name.
 667     */
 668     void SetName(const wxString& name);
 669 };
 670