dlls/riched20/editor.h

   1 /*
   2  * RichEdit - prototypes for functions and macro definitions
   3  *
   4  * Copyright 2004 by Krzysztof Foltman
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "editstr.h"
  22
  23 struct _RTF_Info;
  24
  25 extern HINSTANCE dll_instance;
  26
  27 #define RUN_IS_HIDDEN(run) ((run)->style->fmt.dwMask & CFM_HIDDEN \
  28                              && (run)->style->fmt.dwEffects & CFE_HIDDEN)
  29
  30 #define InitFormatEtc(fe, cf, med) \
  31         {\
  32         (fe).cfFormat=cf;\
  33         (fe).dwAspect=DVASPECT_CONTENT;\
  34         (fe).ptd=NULL;\
  35         (fe).tymed=med;\
  36         (fe).lindex=-1;\
  37         };
  38
  39 static inline WCHAR *get_text( const ME_Run *run, int offset )
  40 {
  41     return run->para->text->szData + run->nCharOfs + offset;
  42 }
  43
  44 static inline const char *debugstr_run( const ME_Run *run )
  45 {
  46     return debugstr_wn( get_text( run, 0 ), run->len );
  47 }
  48
  49 /* style.c */
  50 ME_Style *style_get_insert_style( ME_TextEditor *editor, ME_Cursor *cursor );
  51 ME_Style *ME_MakeStyle(CHARFORMAT2W *style);
  52 void ME_AddRefStyle(ME_Style *item);
  53 void ME_DestroyStyle(ME_Style *item);
  54 void ME_ReleaseStyle(ME_Style *item);
  55 ME_Style *ME_ApplyStyle(ME_TextEditor *ed, ME_Style *sSrc, CHARFORMAT2W *style);
  56 void select_style(ME_Context *c, ME_Style *s);
  57 void ME_InitCharFormat2W(CHARFORMAT2W *pFmt);
  58 void ME_SaveTempStyle(ME_TextEditor *editor, ME_Style *style);
  59 void ME_ClearTempStyle(ME_TextEditor *editor);
  60 void ME_DumpStyleToBuf(CHARFORMAT2W *pFmt, char buf[2048]);
  61 void ME_DumpStyle(ME_Style *s);
  62 BOOL cfany_to_cf2w(CHARFORMAT2W *to, const CHARFORMAT2W *from);
  63 BOOL cf2w_to_cfany(CHARFORMAT2W *to, const CHARFORMAT2W *from);
  64 void ME_CopyCharFormat(CHARFORMAT2W *pDest, const CHARFORMAT2W *pSrc); /* only works with 2W structs */
  65 void ME_CharFormatFromLogFont(HDC hDC, const LOGFONTW *lf, CHARFORMAT2W *fmt); /* ditto */
  66
  67 /* list.c */
  68 void ME_InsertBefore(ME_DisplayItem *diWhere, ME_DisplayItem *diWhat);
  69 void ME_Remove(ME_DisplayItem *diWhere);
  70 ME_DisplayItem *ME_FindItemBack(ME_DisplayItem *di, ME_DIType nTypeOrClass);
  71 ME_DisplayItem *ME_FindItemFwd(ME_DisplayItem *di, ME_DIType nTypeOrClass);
  72 ME_DisplayItem *ME_FindItemBackOrHere(ME_DisplayItem *di, ME_DIType nTypeOrClass);
  73 ME_DisplayItem *ME_MakeDI(ME_DIType type);
  74 void ME_DestroyDisplayItem(ME_DisplayItem *item);
  75 void ME_DumpDocument(ME_TextBuffer *buffer);
  76
  77 /* string.c */
  78 ME_String *ME_MakeStringN(LPCWSTR szText, int nMaxChars);
  79 ME_String *ME_MakeStringR(WCHAR cRepeat, int nMaxChars);
  80 ME_String *ME_MakeStringConst(const WCHAR *str, int len);
  81 ME_String *ME_MakeStringEmpty(int len);
  82 void ME_DestroyString(ME_String *s);
  83 BOOL ME_AppendString(ME_String *s, const WCHAR *append, int len);
  84 ME_String *ME_VSplitString(ME_String *orig, int nVPos);
  85 int ME_FindNonWhitespaceV(const ME_String *s, int nVChar);
  86 int ME_CallWordBreakProc(ME_TextEditor *editor, WCHAR *str, INT len, INT start, INT code);
  87 void ME_StrDeleteV(ME_String *s, int nVChar, int nChars);
  88 BOOL ME_InsertString(ME_String *s, int ofs, const WCHAR *insert, int len);
  89
  90 #define CP_UNICODE 1200
  91
  92 /* smart helpers for A<->W conversions, they reserve/free memory and call MultiByte<->WideChar functions */
  93 LPWSTR ME_ToUnicode(LONG codepage, LPVOID psz, INT *len);
  94 void ME_EndToUnicode(LONG codepage, LPVOID psz);
  95
  96 static inline int ME_IsWSpace(WCHAR ch)
  97 {
  98   return ch > '\0' && ch <= ' ';
  99 }
 100
 101 static inline int ME_CharCompare(WCHAR a, WCHAR b, int caseSensitive)
 102 {
 103   return caseSensitive ? (a == b) : (towupper(a) == towupper(b));
 104 }
 105
 106 /* note: those two really return the first matching offset (starting from EOS)+1
 107  * in other words, an offset of the first trailing white/black */
 108 int ME_ReverseFindNonWhitespaceV(const ME_String *s, int nVChar);
 109 int ME_ReverseFindWhitespaceV(const ME_String *s, int nVChar);
 110
 111 /* row.c */
 112 void row_end_cursor( ME_Row *row, ME_Cursor *cursor, BOOL include_eop );
 113 void row_first_cursor( ME_Row *row, ME_Cursor *cursor );
 114 ME_Run *row_first_run( ME_Row *row );
 115 ME_Row *row_from_cursor( ME_Cursor *cursor );
 116 ME_Row *row_from_row_number( ME_TextEditor *editor, int row_num );
 117 ME_Row *row_next( ME_Row *row );
 118 ME_Row *row_next_all_paras( ME_Row *row );
 119 ME_Run *row_next_run( ME_Row *row, ME_Run *run );
 120 int row_number_from_char_ofs( ME_TextEditor *editor, int ofs );
 121 ME_Paragraph *row_para( ME_Row *row );
 122 ME_Row *row_prev_all_paras( ME_Row *row );
 123 static inline ME_DisplayItem *row_get_di( ME_Row *row )
 124 {
 125     return (ME_DisplayItem *)((ptrdiff_t)row - offsetof(ME_DisplayItem, member));
 126 }
 127
 128 /* run.c */
 129 void cursor_from_char_ofs( ME_TextEditor *editor, int char_ofs, ME_Cursor *cursor );
 130 BOOL cursor_next_run( ME_Cursor *cursor, BOOL all_para );
 131 BOOL cursor_prev_run( ME_Cursor *cursor, BOOL all_para );
 132 void editor_propagate_char_ofs( ME_TextEditor *editor, ME_Paragraph *para, ME_Run *run, int shift );
 133 int run_char_ofs( ME_Run *run, int ofs );
 134 ME_Run *run_create( ME_Style *s, int nFlags );
 135 ME_Run *run_insert( ME_TextEditor *editor, ME_Cursor *cursor,
 136                     ME_Style *style, const WCHAR *str, int len, int flags );
 137 void ME_CheckCharOffsets(ME_TextEditor *editor);
 138 /* this one accounts for 1/2 char tolerance */
 139 int ME_CharFromPointContext(ME_Context *c, int cx, ME_Run *run, BOOL closest, BOOL visual_order);
 140 int ME_CharFromPoint(ME_TextEditor *editor, int cx, ME_Run *run, BOOL closest, BOOL visual_order);
 141 int ME_PointFromCharContext(ME_Context *c, ME_Run *pRun, int nOffset, BOOL visual_order);
 142 int ME_PointFromChar(ME_TextEditor *editor, ME_Run *pRun, int nOffset, BOOL visual_order);
 143 BOOL ME_CanJoinRuns(const ME_Run *run1, const ME_Run *run2);
 144 void run_join( ME_TextEditor *editor, ME_Run *run );
 145 ME_Run *run_next( ME_Run *run );
 146 ME_Run *run_next_all_paras( ME_Run *run );
 147 ME_Run *run_prev( ME_Run *run );
 148 ME_Run *run_prev_all_paras( ME_Run *run );
 149 ME_Run *run_split( ME_TextEditor *editor, ME_Cursor *cursor );
 150 void ME_UpdateRunFlags(ME_TextEditor *editor, ME_Run *run);
 151 SIZE ME_GetRunSizeCommon(ME_Context *c, const ME_Paragraph *para, ME_Run *run, int nLen,
 152                          int startx, int *pAscent, int *pDescent);
 153 void ME_SetCharFormat(ME_TextEditor *editor, ME_Cursor *start, ME_Cursor *end, CHARFORMAT2W *pFmt);
 154 void ME_SetSelectionCharFormat(ME_TextEditor *editor, CHARFORMAT2W *pFmt);
 155 void ME_GetCharFormat(ME_TextEditor *editor, const ME_Cursor *from,
 156                       const ME_Cursor *to, CHARFORMAT2W *pFmt);
 157 void ME_GetSelectionCharFormat(ME_TextEditor *editor, CHARFORMAT2W *pFmt);
 158 void ME_GetDefaultCharFormat(ME_TextEditor *editor, CHARFORMAT2W *pFmt);
 159 void ME_SetDefaultCharFormat(ME_TextEditor *editor, CHARFORMAT2W *mod);
 160 static inline ME_DisplayItem *run_get_di( ME_Run *run )
 161 {
 162     return (ME_DisplayItem *)((ptrdiff_t)run - offsetof(ME_DisplayItem, member));
 163 }
 164
 165 /* caret.c */
 166 void cursor_coords( ME_TextEditor *editor, ME_Cursor *cursor, int *x, int *y, int *height );
 167 BOOL cursor_from_coords( ME_TextEditor *editor, int x, int y, ME_Cursor *cursor );
 168 void ME_SetCursorToStart(ME_TextEditor *editor, ME_Cursor *cursor);
 169 int set_selection_cursors(ME_TextEditor *editor, int from, int to);
 170 BOOL ME_MoveCursorWords(ME_TextEditor *editor, ME_Cursor *cursor, int nRelOfs);
 171 void hide_caret(ME_TextEditor *ed);
 172 void show_caret(ME_TextEditor *ed);
 173 void update_caret(ME_TextEditor *ed);
 174 void create_caret(ME_TextEditor *ed);
 175 void ME_LButtonDown(ME_TextEditor *editor, int x, int y, int clickNum);
 176 void ME_MouseMove(ME_TextEditor *editor, int x, int y);
 177 BOOL ME_DeleteTextAtCursor(ME_TextEditor *editor, int nCursor, int nChars);
 178 void ME_InsertTextFromCursor(ME_TextEditor *editor, int nCursor,
 179                              const WCHAR *str, int len, ME_Style *style);
 180 void ME_InsertEndRowFromCursor(ME_TextEditor *editor, int nCursor);
 181 int ME_MoveCursorChars(ME_TextEditor *editor, ME_Cursor *cursor, int nRelOfs, BOOL final_eop);
 182 BOOL ME_ArrowKey(ME_TextEditor *ed, int nVKey, BOOL extend, BOOL ctrl);
 183
 184 int ME_GetCursorOfs(const ME_Cursor *cursor);
 185 int ME_GetSelectionOfs(ME_TextEditor *editor, LONG *from, LONG *to);
 186 int ME_GetSelection(ME_TextEditor *editor, ME_Cursor **from, ME_Cursor **to);
 187 BOOL ME_IsSelection(ME_TextEditor *editor);
 188 void ME_DeleteSelection(ME_TextEditor *editor);
 189 void ME_SendSelChange(ME_TextEditor *editor);
 190 HRESULT editor_insert_oleobj( ME_TextEditor *editor, const REOBJECT *reo );
 191 BOOL ME_InternalDeleteText(ME_TextEditor *editor, ME_Cursor *start, int nChars, BOOL bForce);
 192 int ME_GetTextLength(ME_TextEditor *editor);
 193 int ME_GetTextLengthEx(ME_TextEditor *editor, const GETTEXTLENGTHEX *how);
 194 ME_Style *ME_GetSelectionInsertStyle(ME_TextEditor *editor);
 195
 196 /* context.c */
 197 void ME_InitContext(ME_Context *c, ME_TextEditor *editor, HDC hDC);
 198 void ME_DestroyContext(ME_Context *c);
 199
 200 /* wrap.c */
 201 BOOL ME_WrapMarkedParagraphs(ME_TextEditor *editor);
 202 void para_range_invalidate( ME_TextEditor *editor, ME_Paragraph *start_para, ME_Paragraph *last_para );
 203 void ME_SendRequestResize(ME_TextEditor *editor, BOOL force);
 204 BOOL wrap_marked_paras_dc( ME_TextEditor *editor, HDC hdc, BOOL invalidate );
 205
 206 /* para.c */
 207 void editor_get_selection_paras(ME_TextEditor *editor, ME_Paragraph **para, ME_Paragraph **para_end );
 208 void editor_get_selection_para_fmt( ME_TextEditor *editor, PARAFORMAT2 *fmt );
 209 void editor_mark_rewrap_all( ME_TextEditor *editor );
 210 void editor_set_default_para_fmt(ME_TextEditor *editor, PARAFORMAT2 *pFmt);
 211 BOOL editor_set_selection_para_fmt( ME_TextEditor *editor, const PARAFORMAT2 *fmt );
 212 void ME_MakeFirstParagraph(ME_TextEditor *editor);
 213 void ME_DumpParaStyle(ME_Paragraph *s);
 214 void ME_DumpParaStyleToBuf(const PARAFORMAT2 *pFmt, char buf[2048]);
 215 int get_total_width(ME_TextEditor *editor);
 216 ME_Cell *para_cell( ME_Paragraph *para );
 217 void para_destroy( ME_TextEditor *editor, ME_Paragraph *item );
 218 ME_Row *para_end_row( ME_Paragraph *para );
 219 ME_Run *para_end_run( ME_Paragraph *para );
 220 ME_Row *para_first_row( ME_Paragraph *para );
 221 ME_Run *para_first_run( ME_Paragraph *para );
 222 BOOL para_in_table( ME_Paragraph *para );
 223 ME_Paragraph *para_join( ME_TextEditor *editor, ME_Paragraph *para, BOOL use_first_fmt );
 224 void para_mark_add( ME_TextEditor *editor, ME_Paragraph *para );
 225 void para_mark_remove( ME_TextEditor *editor, ME_Paragraph *para );
 226 void para_mark_rewrap( ME_TextEditor *editor, ME_Paragraph *para );
 227 ME_Paragraph *para_next( ME_Paragraph *para );
 228 void para_num_clear( struct para_num *pn );
 229 void para_num_init( ME_Context *c, ME_Paragraph *para );
 230 ME_Paragraph *para_prev( ME_Paragraph *para );
 231 ME_Paragraph *para_split( ME_TextEditor *editor, ME_Run *run, ME_Style *style,
 232                           const WCHAR *eol_str, int eol_len, int paraFlags );
 233
 234 static inline ME_DisplayItem *para_get_di(ME_Paragraph *para)
 235 {
 236     return (ME_DisplayItem *)((ptrdiff_t)para - offsetof(ME_DisplayItem, member));
 237 }
 238
 239 /* paint.c */
 240 void editor_draw( ME_TextEditor *editor, HDC hDC, const RECT *update );
 241 void ME_Repaint(ME_TextEditor *editor);
 242 void ME_RewrapRepaint(ME_TextEditor *editor);
 243 void ME_UpdateRepaint(ME_TextEditor *editor, BOOL update_now);
 244 void editor_ensure_visible( ME_TextEditor *editor, ME_Cursor *cursor );
 245 void ME_InvalidateSelection(ME_TextEditor *editor);
 246 BOOL ME_SetZoom(ME_TextEditor *editor, int numerator, int denominator);
 247 int  ME_twips2pointsX(const ME_Context *c, int x);
 248 int  ME_twips2pointsY(const ME_Context *c, int y);
 249
 250 /* scroll functions in paint.c */
 251
 252 void scroll_abs( ME_TextEditor *editor, int x, int y, BOOL notify );
 253 void scroll_h_abs( ME_TextEditor *editor, int x, BOOL notify );
 254 void scroll_v_abs( ME_TextEditor *editor, int y, BOOL notify );
 255 void ME_ScrollUp(ME_TextEditor *editor, int cy);
 256 void ME_ScrollDown(ME_TextEditor *editor, int cy);
 257 void ME_ScrollLeft(ME_TextEditor *editor, int cx);
 258 void ME_ScrollRight(ME_TextEditor *editor, int cx);
 259 void ME_UpdateScrollBar(ME_TextEditor *editor);
 260
 261 /* other functions in paint.c */
 262 int ME_GetParaBorderWidth(const ME_Context *c, int flags);
 263
 264 /* richole.c */
 265 void draw_ole( ME_Context *c, int x, int y, ME_Run* run, BOOL selected );
 266 void ME_GetOLEObjectSize(const ME_Context *c, ME_Run *run, SIZE *pSize);
 267 void ME_CopyReObject(REOBJECT *dst, const REOBJECT *src, DWORD flags);
 268 void ME_DeleteReObject(struct re_object *re_object);
 269 void richole_release_children( struct text_services *services );
 270 extern const IRichEditOleVtbl re_ole_vtbl;
 271 extern const ITextDocument2OldVtbl text_doc2old_vtbl;
 272
 273 /* editor.c */
 274 ME_TextEditor *ME_MakeEditor(ITextHost *texthost, BOOL bEmulateVersion10);
 275 void ME_DestroyEditor(ME_TextEditor *editor);
 276 LRESULT editor_handle_message( ME_TextEditor *editor, UINT msg, WPARAM wParam,
 277                                LPARAM lParam, HRESULT* phresult );
 278 int ME_GetTextW(ME_TextEditor *editor, WCHAR *buffer, int buflen,
 279                 const ME_Cursor *start, int srcChars, BOOL bCRLF, BOOL bEOP);
 280 void ME_RTFCharAttrHook(struct _RTF_Info *info);
 281 void ME_RTFParAttrHook(struct _RTF_Info *info);
 282 void ME_RTFTblAttrHook(struct _RTF_Info *info);
 283 void ME_RTFSpecialCharHook(struct _RTF_Info *info);
 284 void ME_StreamInFill(ME_InStream *stream);
 285 extern BOOL me_debug;
 286 void ME_ReplaceSel(ME_TextEditor *editor, BOOL can_undo, const WCHAR *str, int len);
 287 int set_selection( ME_TextEditor *editor, int to, int from );
 288 HRESULT editor_copy_or_cut( ME_TextEditor *editor, BOOL cut, ME_Cursor *start, int count,
 289                             IDataObject **data_out );
 290 ME_Paragraph *editor_end_para( ME_TextEditor *editor );
 291 ME_Paragraph *editor_first_para( ME_TextEditor *editor );
 292 void editor_set_cursor( ME_TextEditor *editor, int x, int y );
 293 void link_notify( ME_TextEditor *editor, UINT msg, WPARAM wParam, LPARAM lParam );
 294
 295 /* table.c */
 296 ME_Cell *cell_create( void );
 297 ME_Paragraph *cell_end_para( ME_Cell *cell );
 298 ME_Paragraph *cell_first_para( ME_Cell *cell );
 299 ME_Cell *cell_next( ME_Cell *cell );
 300 ME_Cell *cell_prev( ME_Cell *cell );
 301 ME_Paragraph *table_append_row( ME_TextEditor *editor, ME_Paragraph *table_row );
 302 void table_handle_tab( ME_TextEditor *editor, BOOL selected_row );
 303 ME_Paragraph *table_insert_cell( ME_TextEditor *editor, ME_Cursor *cursor );
 304 ME_Paragraph *table_insert_row_end( ME_TextEditor *editor, ME_Cursor *cursor );
 305 ME_Paragraph *table_insert_row_start( ME_TextEditor *editor, ME_Cursor *cursor );
 306 ME_Paragraph *table_insert_row_start_at_para( ME_TextEditor *editor, ME_Paragraph *para );
 307 void table_move_from_row_start( ME_TextEditor *editor );
 308 ME_Paragraph *table_outer_para( ME_Paragraph *para );
 309 void table_protect_partial_deletion( ME_TextEditor *editor, ME_Cursor *c, int *num_chars );
 310 ME_Paragraph *table_row_end( ME_Paragraph *para );
 311 ME_Cell *table_row_end_cell( ME_Paragraph *para );
 312 ME_Cell *table_row_first_cell( ME_Paragraph *para );
 313 ME_Paragraph *table_row_start( ME_Paragraph *para );
 314 struct RTFTable *ME_MakeTableDef(ME_TextEditor *editor);
 315 void ME_InitTableDef(ME_TextEditor *editor, struct RTFTable *tableDef);
 316 static inline ME_DisplayItem *cell_get_di(ME_Cell *cell)
 317 {
 318     return (ME_DisplayItem *)((ptrdiff_t)cell - offsetof(ME_DisplayItem, member));
 319 }
 320
 321
 322 /* txthost.c */
 323 #ifdef __ASM_USE_THISCALL_WRAPPER
 324 extern const struct ITextHost2Vtbl text_host2_stdcall_vtbl;
 325 #define TXTHOST_VTABLE(This) (&text_host2_stdcall_vtbl)
 326 #else
 327 #define TXTHOST_VTABLE(This) (This)->lpVtbl
 328 #endif
 329  /*** ITextHost methods ***/
 330 #define ITextHost_TxGetDC(This) TXTHOST_VTABLE(This)->TxGetDC(This)
 331 #define ITextHost_TxReleaseDC(This,a) TXTHOST_VTABLE(This)->TxReleaseDC(This,a)
 332 #define ITextHost_TxShowScrollBar(This,a,b) TXTHOST_VTABLE(This)->TxShowScrollBar(This,a,b)
 333 #define ITextHost_TxEnableScrollBar(This,a,b) TXTHOST_VTABLE(This)->TxEnableScrollBar(This,a,b)
 334 #define ITextHost_TxSetScrollRange(This,a,b,c,d) TXTHOST_VTABLE(This)->TxSetScrollRange(This,a,b,c,d)
 335 #define ITextHost_TxSetScrollPos(This,a,b,c) TXTHOST_VTABLE(This)->TxSetScrollPos(This,a,b,c)
 336 #define ITextHost_TxInvalidateRect(This,a,b) TXTHOST_VTABLE(This)->TxInvalidateRect(This,a,b)
 337 #define ITextHost_TxViewChange(This,a) TXTHOST_VTABLE(This)->TxViewChange(This,a)
 338 #define ITextHost_TxCreateCaret(This,a,b,c) TXTHOST_VTABLE(This)->TxCreateCaret(This,a,b,c)
 339 #define ITextHost_TxShowCaret(This,a) TXTHOST_VTABLE(This)->TxShowCaret(This,a)
 340 #define ITextHost_TxSetCaretPos(This,a,b) TXTHOST_VTABLE(This)->TxSetCaretPos(This,a,b)
 341 #define ITextHost_TxSetTimer(This,a,b) TXTHOST_VTABLE(This)->TxSetTimer(This,a,b)
 342 #define ITextHost_TxKillTimer(This,a) TXTHOST_VTABLE(This)->TxKillTimer(This,a)
 343 #define ITextHost_TxScrollWindowEx(This,a,b,c,d,e,f,g) TXTHOST_VTABLE(This)->TxScrollWindowEx(This,a,b,c,d,e,f,g)
 344 #define ITextHost_TxSetCapture(This,a) TXTHOST_VTABLE(This)->TxSetCapture(This,a)
 345 #define ITextHost_TxSetFocus(This) TXTHOST_VTABLE(This)->TxSetFocus(This)
 346 #define ITextHost_TxSetCursor(This,a,b) TXTHOST_VTABLE(This)->TxSetCursor(This,a,b)
 347 #define ITextHost_TxScreenToClient(This,a) TXTHOST_VTABLE(This)->TxScreenToClient(This,a)
 348 #define ITextHost_TxClientToScreen(This,a) TXTHOST_VTABLE(This)->TxClientToScreen(This,a)
 349 #define ITextHost_TxActivate(This,a) TXTHOST_VTABLE(This)->TxActivate(This,a)
 350 #define ITextHost_TxDeactivate(This,a) TXTHOST_VTABLE(This)->TxDeactivate(This,a)
 351 #define ITextHost_TxGetClientRect(This,a) TXTHOST_VTABLE(This)->TxGetClientRect(This,a)
 352 #define ITextHost_TxGetViewInset(This,a) TXTHOST_VTABLE(This)->TxGetViewInset(This,a)
 353 #define ITextHost_TxGetCharFormat(This,a) TXTHOST_VTABLE(This)->TxGetCharFormat(This,a)
 354 #define ITextHost_TxGetParaFormat(This,a) TXTHOST_VTABLE(This)->TxGetParaFormat(This,a)
 355 #define ITextHost_TxGetSysColor(This,a) TXTHOST_VTABLE(This)->TxGetSysColor(This,a)
 356 #define ITextHost_TxGetBackStyle(This,a) TXTHOST_VTABLE(This)->TxGetBackStyle(This,a)
 357 #define ITextHost_TxGetMaxLength(This,a) TXTHOST_VTABLE(This)->TxGetMaxLength(This,a)
 358 #define ITextHost_TxGetScrollBars(This,a) TXTHOST_VTABLE(This)->TxGetScrollBars(This,a)
 359 #define ITextHost_TxGetPasswordChar(This,a) TXTHOST_VTABLE(This)->TxGetPasswordChar(This,a)
 360 #define ITextHost_TxGetAcceleratorPos(This,a) TXTHOST_VTABLE(This)->TxGetAcceleratorPos(This,a)
 361 #define ITextHost_TxGetExtent(This,a) TXTHOST_VTABLE(This)->TxGetExtent(This,a)
 362 #define ITextHost_OnTxCharFormatChange(This,a) TXTHOST_VTABLE(This)->OnTxCharFormatChange(This,a)
 363 #define ITextHost_OnTxParaFormatChange(This,a) TXTHOST_VTABLE(This)->OnTxParaFormatChange(This,a)
 364 #define ITextHost_TxGetPropertyBits(This,a,b) TXTHOST_VTABLE(This)->TxGetPropertyBits(This,a,b)
 365 #define ITextHost_TxNotify(This,a,b) TXTHOST_VTABLE(This)->TxNotify(This,a,b)
 366 #define ITextHost_TxImmGetContext(This) TXTHOST_VTABLE(This)->TxImmGetContext(This)
 367 #define ITextHost_TxImmReleaseContext(This,a) TXTHOST_VTABLE(This)->TxImmReleaseContext(This,a)
 368 #define ITextHost_TxGetSelectionBarWidth(This,a) TXTHOST_VTABLE(This)->TxGetSelectionBarWidth(This,a)
 369 /* ITextHost2 */
 370 #define ITextHost2_TxIsDoubleClickPending(This) TXTHOST_VTABLE(This)->TxIsDoubleClickPending(This)
 371 #define ITextHost2_TxGetWindow(This,a) TXTHOST_VTABLE(This)->TxGetWindow(This,a)
 372 #define ITextHost2_TxSetForegroundWindow(This) TXTHOST_VTABLE(This)->TxSetForegroundWindow(This)
 373 #define ITextHost2_TxGetPalette(This) TXTHOST_VTABLE(This)->TxGetPalette(This)
 374 #define ITextHost2_TxGetEastAsianFlags(This,a) TXTHOST_VTABLE(This)->TxGetEastAsianFlags(This,a)
 375 #define ITextHost2_TxSetCursor2(This,a,b) TXTHOST_VTABLE(This)->TxSetCursor2(This,a,b)
 376 #define ITextHost2_TxFreeTextServicesNotification(This) TXTHOST_VTABLE(This)->TxFreeTextServicesNotification(This)
 377 #define ITextHost2_TxGetEditStyle(This,a,b) TXTHOST_VTABLE(This)->TxGetEditStyle(This,a,b)
 378 #define ITextHost2_TxGetWindowStyles(This,a,b) TXTHOST_VTABLE(This)->TxGetWindowStyles(This,a,b)
 379 #define ITextHost2_TxShowDropCaret(This,a,b,c) TXTHOST_VTABLE(This)->TxShowDropCaret(This,a,b,c)
 380 #define ITextHost2_TxDestroyCaret(This) TXTHOST_VTABLE(This)->TxDestroyCaret(This)
 381 #define ITextHost2_TxGetHorzExtent(This,a) TXTHOST_VTABLE(This)->TxGetHorzExtent(This,a)
 382
 383 /* undo.c */
 384 BOOL add_undo_insert_run( ME_TextEditor *, int pos, const WCHAR *str, int len, int flags, ME_Style *style );
 385 BOOL add_undo_delete_run( ME_TextEditor *, int pos, int len );
 386 BOOL add_undo_set_para_fmt( ME_TextEditor *, const ME_Paragraph *para );
 387 BOOL add_undo_set_char_fmt( ME_TextEditor *, int pos, int len, const CHARFORMAT2W *fmt );
 388 BOOL add_undo_join_paras( ME_TextEditor *, int pos );
 389 BOOL add_undo_split_para( ME_TextEditor *, const ME_Paragraph *para, ME_String *eol_str, const ME_Cell *cell);
 390 void ME_CommitUndo(ME_TextEditor *editor);
 391 void ME_ContinueCoalescingTransaction(ME_TextEditor *editor);
 392 void ME_CommitCoalescingUndo(ME_TextEditor *editor);
 393 BOOL ME_Undo(ME_TextEditor *editor);
 394 BOOL ME_Redo(ME_TextEditor *editor);
 395 void ME_EmptyUndoStack(ME_TextEditor *editor);
 396 void editor_disable_undo(ME_TextEditor *editor);
 397 void editor_enable_undo(ME_TextEditor *editor);
 398
 399 static inline BOOL editor_undo_ignored(ME_TextEditor *editor)
 400 {
 401     return editor->undo_ctl_state != undoActive || editor->nUndoMode == umIgnore;
 402 }
 403
 404 /* txtsrv.c */
 405 HRESULT create_text_services( IUnknown *outer, ITextHost *text_host, IUnknown **unk, BOOL emulate_10 );
 406 #ifdef __ASM_USE_THISCALL_WRAPPER
 407 extern const struct ITextServicesVtbl text_services_stdcall_vtbl;
 408 #define TXTSERV_VTABLE(This) (&text_services_stdcall_vtbl)
 409 #else
 410 #define TXTSERV_VTABLE(This) (This)->lpVtbl
 411 #endif
 412 #define ITextServices_TxSendMessage(This,a,b,c,d) TXTSERV_VTABLE(This)->TxSendMessage(This,a,b,c,d)
 413 #define ITextServices_TxDraw(This,a,b,c,d,e,f,g,h,i,j,k,l) TXTSERV_VTABLE(This)->TxDraw(This,a,b,c,d,e,f,g,h,i,j,k,l)
 414 #define ITextServices_TxGetHScroll(This,a,b,c,d,e) TXTSERV_VTABLE(This)->TxGetHScroll(This,a,b,c,d,e)
 415 #define ITextServices_TxGetVScroll(This,a,b,c,d,e) TXTSERV_VTABLE(This)->TxGetVScroll(This,a,b,c,d,e)
 416 #define ITextServices_OnTxSetCursor(This,a,b,c,d,e,f,g,h,i) TXTSERV_VTABLE(This)->OnTxSetCursor(This,a,b,c,d,e,f,g,h,i)
 417 #define ITextServices_TxQueryHitPoint(This,a,b,c,d,e,f,g,h,i,j) TXTSERV_VTABLE(This)->TxQueryHitPoint(This,a,b,c,d,e,f,g,h,i,j)
 418 #define ITextServices_OnTxInPlaceActivate(This,a) TXTSERV_VTABLE(This)->OnTxInPlaceActivate(This,a)
 419 #define ITextServices_OnTxInPlaceDeactivate(This) TXTSERV_VTABLE(This)->OnTxInPlaceDeactivate(This)
 420 #define ITextServices_OnTxUIActivate(This) TXTSERV_VTABLE(This)->OnTxUIActivate(This)
 421 #define ITextServices_OnTxUIDeactivate(This) TXTSERV_VTABLE(This)->OnTxUIDeactivate(This)
 422 #define ITextServices_TxGetText(This,a) TXTSERV_VTABLE(This)->TxGetText(This,a)
 423 #define ITextServices_TxSetText(This,a) TXTSERV_VTABLE(This)->TxSetText(This,a)
 424 #define ITextServices_TxGetCurTargetX(This,a) TXTSERV_VTABLE(This)->TxGetCurTargetX(This,a)
 425 #define ITextServices_TxGetBaseLinePos(This,a) TXTSERV_VTABLE(This)->TxGetBaseLinePos(This,a)
 426 #define ITextServices_TxGetNaturalSize(This,a,b,c,d,e,f,g,h) TXTSERV_VTABLE(This)->TxGetNaturalSize(This,a,b,c,d,e,f,g,h)
 427 #define ITextServices_TxGetDropTarget(This,a) TXTSERV_VTABLE(This)->TxGetDropTarget(This,a)
 428 #define ITextServices_OnTxPropertyBitsChange(This,a,b) TXTSERV_VTABLE(This)->OnTxPropertyBitsChange(This,a,b)
 429 #define ITextServices_TxGetCachedSize(This,a,b) TXTSERV_VTABLE(This)->TxGetCachedSize(This,a,b)
 430
 431 /* writer.c */
 432 LRESULT ME_StreamOutRange(ME_TextEditor *editor, DWORD dwFormat, const ME_Cursor *start, int nChars, EDITSTREAM *stream);
 433 LRESULT ME_StreamOut(ME_TextEditor *editor, DWORD dwFormat, EDITSTREAM *stream);
 434
 435 /* clipboard.c */
 436 HRESULT ME_GetDataObject(ME_TextEditor *editor, const ME_Cursor *start, int nChars, LPDATAOBJECT *lplpdataobj);
 437
 438 void release_typelib(void);