257 lines
6.1 KiB
C
257 lines
6.1 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 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
|
|
|
|
/* 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_WRAPPED 1
|
|
#define MEPF_REDRAW 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;
|
|
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;
|
|
|
|
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_FontCacheItem
|
|
{
|
|
LOGFONTW lfSpecs;
|
|
HFONT hFont;
|
|
int nRefs;
|
|
int nAge;
|
|
} ME_FontCacheItem;
|
|
|
|
#define HFONT_CACHE_SIZE 10
|
|
|
|
typedef struct tagME_TextEditor
|
|
{
|
|
HWND hWnd;
|
|
BOOL bCaretShown;
|
|
ME_TextBuffer *pBuffer;
|
|
ME_Cursor *pCursors;
|
|
int nCursors;
|
|
SIZE sizeWindow;
|
|
int nScrollPos;
|
|
int nTotalLength;
|
|
int nUDArrowX;
|
|
int nSequence;
|
|
int nOldSelFrom, nOldSelTo;
|
|
COLORREF rgbBackColor;
|
|
BOOL bCaretAtEnd;
|
|
int nEventMask;
|
|
int nModifyStep;
|
|
ME_DisplayItem *pUndoStack, *pRedoStack;
|
|
ME_UndoMode nUndoMode;
|
|
int nParagraphs;
|
|
ME_FontCacheItem pFontCache[HFONT_CACHE_SIZE];
|
|
} 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
|