453 lines
11 KiB
C
453 lines
11 KiB
C
/*
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* RichEdit - structures and constant
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*
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* Copyright 2004 by Krzysztof Foltman
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __EDITSTR_H
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#define __EDITSTR_H
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#ifndef _WIN32_IE
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#define _WIN32_IE 0x0400
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#endif
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#include <assert.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <limits.h>
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#define COBJMACROS
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#include <windef.h>
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#include <winbase.h>
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#include <winnls.h>
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#include <winnt.h>
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#include <wingdi.h>
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#include <winuser.h>
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#include <richedit.h>
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#include <commctrl.h>
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#include <ole2.h>
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#include <richole.h>
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#include "imm.h"
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#include <textserv.h>
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#include "usp10.h"
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#include "wine/debug.h"
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#include "wine/list.h"
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#ifdef __i386__
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extern const struct ITextHostVtbl itextHostStdcallVtbl DECLSPEC_HIDDEN;
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#endif /* __i386__ */
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typedef struct tagME_String
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{
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WCHAR *szData;
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int nLen, nBuffer;
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void (*free)(struct tagME_String *);
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} ME_String;
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typedef struct tagME_FontCacheItem
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{
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LOGFONTW lfSpecs;
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HFONT hFont;
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int nRefs;
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int nAge;
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} ME_FontCacheItem;
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#define HFONT_CACHE_SIZE 10
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typedef struct tagME_Style
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{
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CHARFORMAT2W fmt;
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ME_FontCacheItem *font_cache; /* cached font for the style */
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TEXTMETRICW tm; /* cached font metrics for the style */
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int nRefs; /* reference count */
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SCRIPT_CACHE script_cache;
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struct list entry;
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} ME_Style;
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typedef enum {
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diInvalid,
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diTextStart, /* start of the text buffer */
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diParagraph, /* paragraph start */
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diCell, /* cell start */
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diRun, /* run (sequence of chars with the same character format) */
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diStartRow, /* start of the row (line of text on the screen) */
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diTextEnd, /* end of the text buffer */
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/********************* these below are meant for finding only *********************/
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diStartRowOrParagraph, /* 7 */
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diStartRowOrParagraphOrEnd,
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diRunOrParagraph,
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diRunOrStartRow,
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diParagraphOrEnd,
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diRunOrParagraphOrEnd, /* 12 */
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} ME_DIType;
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#define SELECTIONBAR_WIDTH 8
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/******************************** run flags *************************/
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#define MERF_STYLEFLAGS 0x0FFF
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/* run contains non-text content, which has its own rules for wrapping, sizing etc */
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#define MERF_GRAPHICS 0x001
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/* run is a tab (or, in future, any kind of content whose size is dependent on run position) */
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#define MERF_TAB 0x002
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/* run is a cell boundary */
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#define MERF_ENDCELL 0x004 /* v4.1 */
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#define MERF_NONTEXT (MERF_GRAPHICS | MERF_TAB | MERF_ENDCELL)
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/* run is splittable (contains white spaces in the middle or end) */
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#define MERF_SPLITTABLE 0x001000
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/* run starts with whitespaces */
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#define MERF_STARTWHITE 0x002000
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/* run ends with whitespaces */
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#define MERF_ENDWHITE 0x004000
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/* run is completely made of whitespaces */
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#define MERF_WHITESPACE 0x008000
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/* the "end of paragraph" run, contains 1 character */
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#define MERF_ENDPARA 0x100000
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/* forcing the "end of row" run, contains 1 character */
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#define MERF_ENDROW 0x200000
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/* run is hidden */
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#define MERF_HIDDEN 0x400000
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/* start of a table row has an empty paragraph that should be skipped over. */
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#define MERF_TABLESTART 0x800000 /* v4.1 */
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/* runs with any of these flags set cannot be joined */
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#define MERF_NOJOIN (MERF_GRAPHICS|MERF_TAB|MERF_ENDPARA|MERF_ENDROW)
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/* runs that don't contain real text */
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#define MERF_NOTEXT (MERF_GRAPHICS|MERF_TAB|MERF_ENDPARA|MERF_ENDROW)
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/* those flags are kept when the row is split */
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#define MERF_SPLITMASK (~(0))
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/******************************** para flags *************************/
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/* this paragraph was already wrapped and hasn't changed, every change resets that flag */
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#define MEPF_REWRAP 0x01
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/* v4.1 */
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#define MEPF_CELL 0x04 /* The paragraph is nested in a cell */
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#define MEPF_ROWSTART 0x08 /* Hidden empty paragraph at the start of the row */
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#define MEPF_ROWEND 0x10 /* Visible empty paragraph at the end of the row */
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#define MEPF_COMPLEX 0x20 /* Use uniscribe */
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/******************************** structures *************************/
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struct tagME_DisplayItem;
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typedef struct tagME_Run
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{
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ME_Style *style;
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struct tagME_Paragraph *para; /* ptr to the run's paragraph */
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int nCharOfs; /* relative to para's offset */
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int len; /* length of run's text */
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int nWidth; /* width of full run, width of leading&trailing ws */
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int nFlags;
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int nAscent, nDescent; /* pixels above/below baseline */
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POINT pt; /* relative to para's position */
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REOBJECT *ole_obj; /* FIXME: should be a union with strText (at least) */
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SCRIPT_ANALYSIS script_analysis;
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int num_glyphs, max_glyphs;
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WORD *glyphs;
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SCRIPT_VISATTR *vis_attrs;
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int *advances;
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GOFFSET *offsets;
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int max_clusters;
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WORD *clusters;
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} ME_Run;
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typedef struct tagME_Border
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{
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int width;
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COLORREF colorRef;
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} ME_Border;
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typedef struct tagME_BorderRect
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{
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ME_Border top;
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ME_Border left;
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ME_Border bottom;
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ME_Border right;
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} ME_BorderRect;
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struct para_num
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{
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ME_Style *style;
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ME_String *text;
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INT width;
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POINT pt;
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};
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typedef struct tagME_Paragraph
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{
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PARAFORMAT2 fmt;
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ME_String *text;
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struct tagME_DisplayItem *pCell; /* v4.1 */
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ME_BorderRect border;
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int nCharOfs;
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int nFlags;
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POINT pt;
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int nHeight, nWidth;
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int nRows;
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struct para_num para_num;
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ME_Run *eop_run; /* ptr to the end-of-para run */
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struct tagME_DisplayItem *prev_para, *next_para;
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} ME_Paragraph;
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typedef struct tagME_Cell /* v4.1 */
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{
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int nNestingLevel; /* 0 for normal cells, and greater for nested cells */
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int nRightBoundary;
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ME_BorderRect border;
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POINT pt;
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int nHeight, nWidth;
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int yTextOffset; /* The text offset is caused by the largest top border. */
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struct tagME_DisplayItem *prev_cell, *next_cell, *parent_cell;
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} ME_Cell;
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typedef struct tagME_Row
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{
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int nHeight;
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int nBaseline;
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int nWidth;
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int nLMargin;
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int nRMargin;
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POINT pt;
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} ME_Row;
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/* the display item list layout is like this:
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* - the document consists of paragraphs
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* - each paragraph contains at least one run, the last run in the paragraph
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* is an end-of-paragraph run
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* - each formatted paragraph contains at least one row, which corresponds
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* to a screen line (that's why there are no rows in an unformatted
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* paragraph
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* - the paragraphs contain "shortcut" pointers to the previous and the next
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* paragraph, that makes iteration over paragraphs faster
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* - the list starts with diTextStart and ends with diTextEnd
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*/
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typedef struct tagME_DisplayItem
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{
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ME_DIType type;
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struct tagME_DisplayItem *prev, *next;
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union {
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ME_Run run;
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ME_Row row;
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ME_Cell cell;
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ME_Paragraph para;
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} member;
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} ME_DisplayItem;
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typedef struct tagME_TextBuffer
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{
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ME_DisplayItem *pFirst, *pLast;
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ME_Style *pCharStyle;
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ME_Style *pDefaultStyle;
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} ME_TextBuffer;
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typedef struct tagME_Cursor
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{
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ME_DisplayItem *pPara;
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ME_DisplayItem *pRun;
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int nOffset;
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} ME_Cursor;
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typedef enum {
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umAddToUndo,
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umAddToRedo,
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umIgnore,
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umAddBackToUndo
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} ME_UndoMode;
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enum undo_type
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{
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undo_insert_run,
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undo_delete_run,
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undo_join_paras,
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undo_split_para,
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undo_set_para_fmt,
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undo_set_char_fmt,
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undo_end_transaction, /* marks the end of a group of changes for undo */
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undo_potential_end_transaction /* allows grouping typed chars for undo */
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};
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struct insert_run_item
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{
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int pos, len;
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WCHAR *str;
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ME_Style *style;
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DWORD flags;
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};
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struct delete_run_item
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{
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int pos, len;
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};
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struct join_paras_item
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{
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int pos;
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};
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struct split_para_item
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{
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int pos;
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PARAFORMAT2 fmt;
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ME_BorderRect border;
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ME_String *eol_str;
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DWORD flags;
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ME_BorderRect cell_border;
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int cell_right_boundary;
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};
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struct set_para_fmt_item
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{
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int pos;
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PARAFORMAT2 fmt;
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ME_BorderRect border;
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};
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struct set_char_fmt_item
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{
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int pos, len;
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CHARFORMAT2W fmt;
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};
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struct undo_item
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{
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struct list entry;
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enum undo_type type;
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union
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{
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struct insert_run_item insert_run;
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struct delete_run_item delete_run;
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struct join_paras_item join_paras;
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struct split_para_item split_para;
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struct set_para_fmt_item set_para_fmt;
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struct set_char_fmt_item set_char_fmt;
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} u;
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};
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typedef enum {
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stPosition = 0,
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stWord,
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stLine,
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stParagraph,
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stDocument
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} ME_SelectionType;
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typedef struct tagME_FontTableItem {
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BYTE bCharSet;
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WCHAR *szFaceName;
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} ME_FontTableItem;
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#define STREAMIN_BUFFER_SIZE 4096 /* M$ compatibility */
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struct tagME_InStream {
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EDITSTREAM *editstream;
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DWORD dwSize;
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DWORD dwUsed;
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char buffer[STREAMIN_BUFFER_SIZE];
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};
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typedef struct tagME_InStream ME_InStream;
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typedef struct tagME_TextEditor
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{
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HWND hWnd, hwndParent;
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ITextHost *texthost;
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IRichEditOle *reOle;
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BOOL bEmulateVersion10;
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ME_TextBuffer *pBuffer;
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ME_Cursor *pCursors;
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DWORD styleFlags;
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DWORD exStyleFlags;
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int nCursors;
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SIZE sizeWindow;
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int nTotalLength, nLastTotalLength;
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int nTotalWidth, nLastTotalWidth;
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int nAvailWidth; /* 0 = wrap to client area, else wrap width in twips */
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int nUDArrowX;
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COLORREF rgbBackColor;
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HBRUSH hbrBackground;
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BOOL bCaretAtEnd;
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int nEventMask;
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int nModifyStep;
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struct list undo_stack;
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struct list redo_stack;
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int nUndoStackSize;
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int nUndoLimit;
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ME_UndoMode nUndoMode;
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int nParagraphs;
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int nLastSelStart, nLastSelEnd;
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ME_DisplayItem *pLastSelStartPara, *pLastSelEndPara;
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ME_FontCacheItem pFontCache[HFONT_CACHE_SIZE];
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int nZoomNumerator, nZoomDenominator;
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RECT prevClientRect;
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RECT rcFormat;
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BOOL bDefaultFormatRect;
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BOOL bWordWrap;
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int nTextLimit;
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EDITWORDBREAKPROCW pfnWordBreak;
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LPRICHEDITOLECALLBACK lpOleCallback;
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/*TEXTMODE variable; contains only one of each of the following options:
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*TM_RICHTEXT or TM_PLAINTEXT
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*TM_SINGLELEVELUNDO or TM_MULTILEVELUNDO
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*TM_SINGLECODEPAGE or TM_MULTICODEPAGE*/
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int mode;
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BOOL bHideSelection;
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BOOL AutoURLDetect_bEnable;
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WCHAR cPasswordMask;
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BOOL bHaveFocus;
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BOOL bDialogMode; /* Indicates that we are inside a dialog window */
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/*for IME */
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int imeStartIndex;
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DWORD selofs; /* The size of the selection bar on the left side of control */
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ME_SelectionType nSelectionType;
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/* Track previous notified selection */
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CHARRANGE notified_cr;
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/* Cache previously set scrollbar info */
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SCROLLINFO vert_si, horz_si;
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BOOL bMouseCaptured;
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int wheel_remain;
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struct list style_list;
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} ME_TextEditor;
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typedef struct tagME_Context
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{
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HDC hDC;
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POINT pt;
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RECT rcView;
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SIZE dpi;
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int nAvailWidth;
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/* those are valid inside ME_WrapTextParagraph and related */
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ME_TextEditor *editor;
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} ME_Context;
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#endif
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