Sweden-Number/dlls/riched20/editstr.h

319 lines
8.0 KiB
C

/*
* RichEdit - structures and constant
*
* Copyright 2004 by Krzysztof Foltman
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __EDITSTR_H
#define __EDITSTR_H
#ifndef _WIN32_IE
#define _WIN32_IE 0x0400
#endif
#include <assert.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <windef.h>
#include <winbase.h>
#include <winnls.h>
#include <winnt.h>
#include <wingdi.h>
#include <winuser.h>
#include <richedit.h>
#include <commctrl.h>
#include "wine/debug.h"
typedef struct tagME_String
{
WCHAR *szData;
int nLen, nBuffer;
} ME_String;
typedef struct tagME_Style
{
CHARFORMAT2W fmt;
HFONT hFont; /* cached font for the style */
TEXTMETRICW tm; /* cached font metrics for the style */
int nRefs; /* reference count */
int nSequence; /* incremented when cache needs to be rebuilt, ie. every screen redraw */
} ME_Style;
typedef enum {
diTextStart, /* start of the text buffer */
diParagraph, /* paragraph start */
diRun, /* run (sequence of chars with the same character format) */
diStartRow, /* start of the row (line of text on the screen) */
diTextEnd, /* end of the text buffer */
/********************* these below are meant for finding only *********************/
diStartRowOrParagraph, /* 5 */
diStartRowOrParagraphOrEnd,
diRunOrParagraph,
diRunOrStartRow,
diParagraphOrEnd,
diRunOrParagraphOrEnd, /* 10 */
diUndoInsertRun, /* 11 */
diUndoDeleteRun, /* 12 */
diUndoJoinParagraphs, /* 13 */
diUndoSplitParagraph, /* 14 */
diUndoSetParagraphFormat, /* 15 */
diUndoSetCharFormat, /* 16 */
diUndoEndTransaction, /* 17 */
diUndoSetDefaultCharFormat, /* 18 */
} ME_DIType;
/******************************** run flags *************************/
#define MERF_STYLEFLAGS 0x0FFF
/* run contains non-text content, which has its own rules for wrapping, sizing etc */
#define MERF_GRAPHICS 1
/* run is a tab (or, in future, any kind of content whose size is dependent on run position) */
#define MERF_TAB 2
/* run is splittable (contains white spaces in the middle or end) */
#define MERF_SPLITTABLE 0x001000
/* run starts with whitespaces */
#define MERF_STARTWHITE 0x002000
/* run ends with whitespaces */
#define MERF_ENDWHITE 0x004000
/* run is completely made of whitespaces */
#define MERF_WHITESPACE 0x008000
/* run is a last (dummy) run in the paragraph */
#define MERF_SKIPPED 0x010000
/* flags that are calculated during text wrapping */
#define MERF_CALCBYWRAP 0x0F0000
/* the "end of paragraph" run, contains 1 character */
#define MERF_ENDPARA 0x100000
/* runs with any of these flags set cannot be joined */
#define MERF_NOJOIN (MERF_GRAPHICS|MERF_TAB|MERF_ENDPARA)
/* runs that don't contain real text */
#define MERF_NOTEXT (MERF_GRAPHICS|MERF_TAB|MERF_ENDPARA)
/* those flags are kept when the row is split */
#define MERF_SPLITMASK (~(0))
/******************************** para flags *************************/
/* this paragraph was already wrapped and hasn't changed, every change resets that flag */
#define MEPF_REWRAP 1
#define MEPF_REPAINT 2
/******************************** structures *************************/
struct tagME_DisplayItem;
typedef struct tagME_Run
{
ME_String *strText;
ME_Style *style;
int nCharOfs; /* relative to para's offset */
int nWidth; /* width of full run, width of leading&trailing ws */
int nFlags;
int nAscent, nDescent; /* pixels above/below baseline */
POINT pt; /* relative to para's position */
} ME_Run;
typedef struct tagME_Document {
struct tagME_DisplayItem *def_char_style;
struct tagME_DisplayItem *def_para_style;
int last_wrapped_line;
} ME_Document;
typedef struct tagME_Paragraph
{
PARAFORMAT2 *pFmt;
int nLeftMargin, nRightMargin, nFirstMargin;
int nCharOfs;
int nFlags;
int nYPos, nHeight;
int nLastPaintYPos, nLastPaintHeight;
int nRows;
struct tagME_DisplayItem *prev_para, *next_para, *document;
} ME_Paragraph;
typedef struct tagME_Row
{
int nHeight;
int nBaseline;
int nWidth;
int nLMargin;
int nRMargin;
int nYPos;
} ME_Row;
/* the display item list layout is like this:
* - the document consists of paragraphs
* - each paragraph contains at least one run, the last run in the paragraph
* is an end-of-paragraph run
* - each formatted paragraph contains at least one row, which corresponds
* to a screen line (that's why there are no rows in an unformatted
* paragraph
* - the paragraphs contain "shortcut" pointers to the previous and the next
* paragraph, that makes iteration over paragraphs faster
* - the list starts with diTextStart and ends with diTextEnd
*/
typedef struct tagME_DisplayItem
{
ME_DIType type;
struct tagME_DisplayItem *prev, *next;
union {
ME_Run run;
ME_Row row;
ME_Paragraph para;
ME_Document doc; /* not used */
ME_Style *ustyle; /* used by diUndoSetCharFormat */
} member;
} ME_DisplayItem;
typedef struct tagME_UndoItem
{
ME_DisplayItem di;
int nStart, nLen;
} ME_UndoItem;
typedef struct tagME_TextBuffer
{
ME_DisplayItem *pFirst, *pLast;
ME_Style *pCharStyle;
ME_Style *pDefaultStyle;
} ME_TextBuffer;
typedef struct tagME_Cursor
{
ME_DisplayItem *pRun;
int nOffset;
} ME_Cursor;
typedef enum {
umAddToUndo,
umAddToRedo,
umIgnore,
umAddBackToUndo
} ME_UndoMode;
typedef struct tagME_FontTableItem {
BYTE bCharSet;
WCHAR *szFaceName;
} ME_FontTableItem;
#define STREAMIN_BUFFER_SIZE 4096 /* M$ compatibility */
struct tagME_InStream {
EDITSTREAM *editstream;
DWORD dwSize;
DWORD dwUsed;
char buffer[STREAMIN_BUFFER_SIZE];
};
typedef struct tagME_InStream ME_InStream;
#define STREAMOUT_BUFFER_SIZE 4096
#define STREAMOUT_FONTTBL_SIZE 8192
#define STREAMOUT_COLORTBL_SIZE 1024
typedef struct tagME_OutStream {
EDITSTREAM *stream;
char buffer[STREAMOUT_BUFFER_SIZE];
UINT pos, written;
UINT nCodePage;
UINT nFontTblLen;
ME_FontTableItem fonttbl[STREAMOUT_FONTTBL_SIZE];
UINT nColorTblLen;
COLORREF colortbl[STREAMOUT_COLORTBL_SIZE];
UINT nDefaultFont;
UINT nDefaultCodePage;
} ME_OutStream;
typedef struct tagME_FontCacheItem
{
LOGFONTW lfSpecs;
HFONT hFont;
int nRefs;
int nAge;
} ME_FontCacheItem;
#define HFONT_CACHE_SIZE 10
typedef struct tagME_TextEditor
{
HWND hWnd;
BOOL bEmulateVersion10;
BOOL bCaretShown;
ME_TextBuffer *pBuffer;
ME_Cursor *pCursors;
int nCursors;
SIZE sizeWindow;
int nTotalLength, nLastTotalLength;
int nUDArrowX;
int nSequence;
int nOldSelFrom, nOldSelTo;
COLORREF rgbBackColor;
BOOL bCaretAtEnd;
int nEventMask;
int nModifyStep;
ME_DisplayItem *pUndoStack, *pRedoStack;
ME_UndoMode nUndoMode;
int nParagraphs;
int nLastSelStart, nLastSelEnd;
ME_FontCacheItem pFontCache[HFONT_CACHE_SIZE];
ME_OutStream *pStream;
BOOL bScrollX, bScrollY;
int nScrollPosY;
int nZoomNumerator, nZoomDenominator;
RECT rcFormat;
BOOL bRedraw;
} ME_TextEditor;
typedef struct tagME_Context
{
HDC hDC;
POINT pt;
POINT ptRowOffset;
RECT rcView;
HBRUSH hbrMargin;
/* those are valid inside ME_WrapTextParagraph and related */
POINT ptFirstRun;
ME_TextEditor *editor;
int nSequence;
} ME_Context;
typedef struct tagME_WrapContext
{
ME_Style *style;
ME_Context *context;
int nLeftMargin, nRightMargin, nFirstMargin;
int nTotalWidth, nAvailWidth;
int nRow;
POINT pt;
BOOL bOverflown;
ME_DisplayItem *pRowStart;
ME_DisplayItem *pLastSplittableRun;
POINT ptLastSplittableRun;
} ME_WrapContext;
#endif