--- /dev/null
+/*
+ * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
+ */
+
+#ifndef __EDITSTR_H
+#define __EDITSTR_H
+
+#ifdef __i386__
+extern const struct ITextHostVtbl itextHostStdcallVtbl DECLSPEC_HIDDEN;
+#endif /* __i386__ */
+
+typedef struct tagME_String
+{
+ WCHAR *szData;
+ int nLen, nBuffer;
+ void (*free)(struct tagME_String *);
+} ME_String;
+
+typedef struct tagME_FontCacheItem
+{
+ LOGFONTW lfSpecs;
+ HFONT hFont;
+ int nRefs;
+ int nAge;
+} ME_FontCacheItem;
+
+#define HFONT_CACHE_SIZE 10
+
+typedef struct tagME_Style
+{
+ CHARFORMAT2W fmt;
+
+ ME_FontCacheItem *font_cache; /* cached font for the style */
+ TEXTMETRICW tm; /* cached font metrics for the style */
+ int nRefs; /* reference count */
+ SCRIPT_CACHE script_cache;
+ struct list entry;
+} ME_Style;
+
+typedef enum {
+ diInvalid,
+ diTextStart, /* start of the text buffer */
+ diParagraph, /* paragraph start */
+ diCell, /* cell 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, /* 7 */
+ diStartRowOrParagraphOrEnd,
+ diRunOrParagraph,
+ diRunOrStartRow,
+ diParagraphOrEnd,
+ diRunOrParagraphOrEnd, /* 12 */
+} ME_DIType;
+
+#define SELECTIONBAR_WIDTH 8
+
+/******************************** run flags *************************/
+#define MERF_STYLEFLAGS 0x0FFF
+/* run contains non-text content, which has its own rules for wrapping, sizing etc */
+#define MERF_GRAPHICS 0x001
+/* run is a tab (or, in future, any kind of content whose size is dependent on run position) */
+#define MERF_TAB 0x002
+/* run is a cell boundary */
+#define MERF_ENDCELL 0x004 /* v4.1 */
+
+#define MERF_NONTEXT (MERF_GRAPHICS | MERF_TAB | MERF_ENDCELL)
+
+/* 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
+/* the "end of paragraph" run, contains 1 character */
+#define MERF_ENDPARA 0x100000
+/* forcing the "end of row" run, contains 1 character */
+#define MERF_ENDROW 0x200000
+/* run is hidden */
+#define MERF_HIDDEN 0x400000
+/* start of a table row has an empty paragraph that should be skipped over. */
+#define MERF_TABLESTART 0x800000 /* v4.1 */
+
+/* runs with any of these flags set cannot be joined */
+#define MERF_NOJOIN (MERF_GRAPHICS|MERF_TAB|MERF_ENDPARA|MERF_ENDROW)
+/* runs that don't contain real text */
+#define MERF_NOTEXT (MERF_GRAPHICS|MERF_TAB|MERF_ENDPARA|MERF_ENDROW)
+
+/* 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 0x01
+/* v4.1 */
+#define MEPF_CELL 0x04 /* The paragraph is nested in a cell */
+#define MEPF_ROWSTART 0x08 /* Hidden empty paragraph at the start of the row */
+#define MEPF_ROWEND 0x10 /* Visible empty paragraph at the end of the row */
+#define MEPF_COMPLEX 0x20 /* Use uniscribe */
+
+/******************************** structures *************************/
+
+struct tagME_DisplayItem;
+
+typedef struct tagME_Run
+{
+ ME_Style *style;
+ struct tagME_Paragraph *para; /* ptr to the run's paragraph */
+ int nCharOfs; /* relative to para's offset */
+ int len; /* length of run's text */
+ 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 */
+ REOBJECT *ole_obj; /* FIXME: should be a union with strText (at least) */
+
+ SCRIPT_ANALYSIS script_analysis;
+ int num_glyphs, max_glyphs;
+ WORD *glyphs;
+ SCRIPT_VISATTR *vis_attrs;
+ int *advances;
+ GOFFSET *offsets;
+ int max_clusters;
+ WORD *clusters;
+} ME_Run;
+
+typedef struct tagME_Border
+{
+ int width;
+ COLORREF colorRef;
+} ME_Border;
+
+typedef struct tagME_BorderRect
+{
+ ME_Border top;
+ ME_Border left;
+ ME_Border bottom;
+ ME_Border right;
+} ME_BorderRect;
+
+struct para_num
+{
+ ME_Style *style;
+ ME_String *text;
+ INT width;
+ POINT pt;
+};
+
+typedef struct tagME_Paragraph
+{
+ PARAFORMAT2 fmt;
+ ME_String *text;
+
+ struct tagME_DisplayItem *pCell; /* v4.1 */
+ ME_BorderRect border;
+
+ int nCharOfs;
+ int nFlags;
+ POINT pt;
+ int nHeight, nWidth;
+ int nRows;
+ struct para_num para_num;
+ ME_Run *eop_run; /* ptr to the end-of-para run */
+ struct tagME_DisplayItem *prev_para, *next_para;
+} ME_Paragraph;
+
+typedef struct tagME_Cell /* v4.1 */
+{
+ int nNestingLevel; /* 0 for normal cells, and greater for nested cells */
+ int nRightBoundary;
+ ME_BorderRect border;
+ POINT pt;
+ int nHeight, nWidth;
+ int yTextOffset; /* The text offset is caused by the largest top border. */
+ struct tagME_DisplayItem *prev_cell, *next_cell, *parent_cell;
+} ME_Cell;
+
+typedef struct tagME_Row
+{
+ int nHeight;
+ int nBaseline;
+ int nWidth;
+ int nLMargin;
+ int nRMargin;
+ POINT pt;
+} 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_Cell cell;
+ ME_Paragraph para;
+ } member;
+} ME_DisplayItem;
+
+typedef struct tagME_TextBuffer
+{
+ ME_DisplayItem *pFirst, *pLast;
+ ME_Style *pCharStyle;
+ ME_Style *pDefaultStyle;
+} ME_TextBuffer;
+
+typedef struct tagME_Cursor
+{
+ ME_DisplayItem *pPara;
+ ME_DisplayItem *pRun;
+ int nOffset;
+} ME_Cursor;
+
+typedef enum {
+ umAddToUndo,
+ umAddToRedo,
+ umIgnore,
+ umAddBackToUndo
+} ME_UndoMode;
+
+enum undo_type
+{
+ undo_insert_run,
+ undo_delete_run,
+ undo_join_paras,
+ undo_split_para,
+ undo_set_para_fmt,
+ undo_set_char_fmt,
+ undo_end_transaction, /* marks the end of a group of changes for undo */
+ undo_potential_end_transaction /* allows grouping typed chars for undo */
+};
+
+struct insert_run_item
+{
+ int pos, len;
+ WCHAR *str;
+ ME_Style *style;
+ DWORD flags;
+};
+
+struct delete_run_item
+{
+ int pos, len;
+};
+
+struct join_paras_item
+{
+ int pos;
+};
+
+struct split_para_item
+{
+ int pos;
+ PARAFORMAT2 fmt;
+ ME_BorderRect border;
+ ME_String *eol_str;
+ DWORD flags;
+ ME_BorderRect cell_border;
+ int cell_right_boundary;
+};
+
+struct set_para_fmt_item
+{
+ int pos;
+ PARAFORMAT2 fmt;
+ ME_BorderRect border;
+};
+
+struct set_char_fmt_item
+{
+ int pos, len;
+ CHARFORMAT2W fmt;
+};
+
+struct undo_item
+{
+ struct list entry;
+ enum undo_type type;
+ union
+ {
+ struct insert_run_item insert_run;
+ struct delete_run_item delete_run;
+ struct join_paras_item join_paras;
+ struct split_para_item split_para;
+ struct set_para_fmt_item set_para_fmt;
+ struct set_char_fmt_item set_char_fmt;
+ } u;
+};
+
+typedef enum {
+ stPosition = 0,
+ stWord,
+ stLine,
+ stParagraph,
+ stDocument
+} ME_SelectionType;
+
+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;
+
+typedef struct tagME_TextEditor
+{
+ HWND hWnd, hwndParent;
+ ITextHost *texthost;
+ IRichEditOle *reOle;
+ BOOL bEmulateVersion10;
+ ME_TextBuffer *pBuffer;
+ ME_Cursor *pCursors;
+ DWORD styleFlags;
+ DWORD exStyleFlags;
+ int nCursors;
+ SIZE sizeWindow;
+ int nTotalLength, nLastTotalLength;
+ int nTotalWidth, nLastTotalWidth;
+ int nAvailWidth; /* 0 = wrap to client area, else wrap width in twips */
+ int nUDArrowX;
+ COLORREF rgbBackColor;
+ HBRUSH hbrBackground;
+ BOOL bCaretAtEnd;
+ int nEventMask;
+ int nModifyStep;
+ struct list undo_stack;
+ struct list redo_stack;
+ int nUndoStackSize;
+ int nUndoLimit;
+ ME_UndoMode nUndoMode;
+ int nParagraphs;
+ int nLastSelStart, nLastSelEnd;
+ ME_DisplayItem *pLastSelStartPara, *pLastSelEndPara;
+ ME_FontCacheItem pFontCache[HFONT_CACHE_SIZE];
+ int nZoomNumerator, nZoomDenominator;
+ RECT prevClientRect;
+ RECT rcFormat;
+ BOOL bDefaultFormatRect;
+ BOOL bWordWrap;
+ int nTextLimit;
+ EDITWORDBREAKPROCW pfnWordBreak;
+ LPRICHEDITOLECALLBACK lpOleCallback;
+ /*TEXTMODE variable; contains only one of each of the following options:
+ *TM_RICHTEXT or TM_PLAINTEXT
+ *TM_SINGLELEVELUNDO or TM_MULTILEVELUNDO
+ *TM_SINGLECODEPAGE or TM_MULTICODEPAGE*/
+ int mode;
+ BOOL bHideSelection;
+ BOOL AutoURLDetect_bEnable;
+ WCHAR cPasswordMask;
+ BOOL bHaveFocus;
+ BOOL bDialogMode; /* Indicates that we are inside a dialog window */
+ /*for IME */
+ int imeStartIndex;
+ DWORD selofs; /* The size of the selection bar on the left side of control */
+ ME_SelectionType nSelectionType;
+
+ /* Track previous notified selection */
+ CHARRANGE notified_cr;
+
+ /* Cache previously set scrollbar info */
+ SCROLLINFO vert_si, horz_si;
+
+ BOOL bMouseCaptured;
+ int wheel_remain;
+ struct list style_list;
+} ME_TextEditor;
+
+typedef struct tagME_Context
+{
+ HDC hDC;
+ POINT pt;
+ RECT rcView;
+ SIZE dpi;
+ int nAvailWidth;
+
+ /* those are valid inside ME_WrapTextParagraph and related */
+ ME_TextEditor *editor;
+} ME_Context;
+
+#endif
projects / reactos.git / blobdiff