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-rw-r--r--src/Document.cxx1596
1 files changed, 797 insertions, 799 deletions
diff --git a/src/Document.cxx b/src/Document.cxx
index bfb52d36e..35ab4b056 100644
--- a/src/Document.cxx
+++ b/src/Document.cxx
@@ -1,799 +1,797 @@
-// Scintilla source code edit control
-// Document.cxx - text document that handles notifications, DBCS, styling, words and end of line
-// Copyright 1998-2000 by Neil Hodgson <neilh@scintilla.org>
-// The License.txt file describes the conditions under which this software may be distributed.
-
-#include <stdlib.h>
-#include <string.h>
-#include <stdio.h>
-#include <ctype.h>
-
-#include "Platform.h"
-
-#include "Scintilla.h"
-#include "SVector.h"
-#include "CellBuffer.h"
-#include "Document.h"
-
-Document::Document() {
- refCount = 0;
-#ifdef unix
- eolMode = SC_EOL_LF;
-#else
- eolMode = SC_EOL_CRLF;
-#endif
- dbcsCodePage = 0;
- stylingBits = 5;
- stylingBitsMask = 0x1F;
- stylingPos = 0;
- stylingMask = 0;
- for (int ch = 0; ch < 256; ch++) {
- wordchars[ch] = isalnum(ch) || ch == '_';
- }
- endStyled = 0;
- enteredCount = 0;
- tabInChars = 8;
- watchers = 0;
- lenWatchers = 0;
-}
-
-Document::~Document() {
- for (int i = 0; i < lenWatchers; i++) {
- watchers[i].watcher->NotifyDeleted(this, watchers[i].userData);
- }
- delete []watchers;
- watchers = 0;
- lenWatchers = 0;
-}
-
-// Increase reference count and return its previous value.
-int Document::AddRef() {
- return refCount++;
-}
-
-// Decrease reference count and return its provius value.
-// Delete the document if reference count reaches zero.
-int Document::Release() {
- int curRefCount = --refCount;
- if (curRefCount == 0)
- delete this;
- return curRefCount;
-}
-
-void Document::SetSavePoint() {
- cb.SetSavePoint();
- NotifySavePoint(true);
-}
-
-int Document::AddMark(int line, int markerNum) {
- int prev = cb.AddMark(line, markerNum);
- DocModification mh(SC_MOD_CHANGEMARKER, LineStart(line), 0, 0, 0);
- NotifyModified(mh);
- return prev;
-}
-
-void Document::DeleteMark(int line, int markerNum) {
- cb.DeleteMark(line, markerNum);
- DocModification mh(SC_MOD_CHANGEMARKER, LineStart(line), 0, 0, 0);
- NotifyModified(mh);
-}
-
-void Document::DeleteMarkFromHandle(int markerHandle) {
- cb.DeleteMarkFromHandle(markerHandle);
- DocModification mh(SC_MOD_CHANGEMARKER, 0, 0, 0, 0);
- NotifyModified(mh);
-}
-
-void Document::DeleteAllMarks(int markerNum) {
- cb.DeleteAllMarks(markerNum);
- DocModification mh(SC_MOD_CHANGEMARKER, 0, 0, 0, 0);
- NotifyModified(mh);
-}
-
-int Document::LineStart(int line) {
- return cb.LineStart(line);
-}
-
-int Document::LineEnd(int line) {
- if (line == LinesTotal() - 1) {
- return LineStart(line + 1);
- } else {
- int position = LineStart(line + 1) - 1;
- // When line terminator is CR+LF, may need to go back one more
- if ((position > LineStart(line)) && (cb.CharAt(position - 1) == '\r')) {
- position--;
- }
- return position;
- }
-}
-
-int Document::LineFromPosition(int pos) {
- return cb.LineFromPosition(pos);
-}
-
-int Document::LineEndPosition(int position) {
- return LineEnd(LineFromPosition(position));
-}
-
-int Document::VCHomePosition(int position) {
- int line = LineFromPosition(position);
- int startPosition = LineStart(line);
- int endLine = LineStart(line + 1) - 1;
- int startText = startPosition;
- while (startText < endLine && (cb.CharAt(startText) == ' ' || cb.CharAt(startText) == '\t' ) )
- startText++;
- if (position == startText)
- return startPosition;
- else
- return startText;
-}
-
-int Document::SetLevel(int line, int level) {
- int prev = cb.SetLevel(line, level);
- if (prev != level) {
- DocModification mh(SC_MOD_CHANGEFOLD, LineStart(line), 0, 0, 0);
- mh.line = line;
- mh.foldLevelNow = level;
- mh.foldLevelPrev = prev;
- NotifyModified(mh);
- }
- return prev;
-}
-
-static bool IsSubordinate(int levelStart, int levelTry) {
- if (levelTry & SC_FOLDLEVELWHITEFLAG)
- return true;
- else
- return (levelStart & SC_FOLDLEVELNUMBERMASK) < (levelTry & SC_FOLDLEVELNUMBERMASK);
-}
-
-int Document::GetLastChild(int lineParent, int level) {
- if (level == -1)
- level = GetLevel(lineParent) & SC_FOLDLEVELNUMBERMASK;
- int maxLine = LinesTotal();
- int lineMaxSubord = lineParent;
- while (lineMaxSubord < maxLine-1) {
- EnsureStyledTo(LineStart(lineMaxSubord+2));
- if (!IsSubordinate(level, GetLevel(lineMaxSubord+1)))
- break;
- lineMaxSubord++;
- }
- if (lineMaxSubord > lineParent) {
- if (level > (GetLevel(lineMaxSubord+1) & SC_FOLDLEVELNUMBERMASK)) {
- // Have chewed up some whitespace that belongs to a parent so seek back
- if ((lineMaxSubord > lineParent) && (GetLevel(lineMaxSubord) & SC_FOLDLEVELWHITEFLAG)) {
- lineMaxSubord--;
- }
- }
- }
- return lineMaxSubord;
-}
-
-int Document::GetFoldParent(int line) {
- int level = GetLevel(line);
- int lineLook = line-1;
- while ((lineLook > 0) && (
- (!(GetLevel(lineLook) & SC_FOLDLEVELHEADERFLAG)) ||
- ((GetLevel(lineLook) & SC_FOLDLEVELNUMBERMASK) >= level))
- ) {
- lineLook--;
- }
- if ((GetLevel(lineLook) & SC_FOLDLEVELHEADERFLAG) &&
- ((GetLevel(lineLook) & SC_FOLDLEVELNUMBERMASK) < level)) {
- return lineLook;
- } else {
- return -1;
- }
-}
-
-int Document::ClampPositionIntoDocument(int pos) {
- return Platform::Clamp(pos, 0, Length());
-}
-
-bool Document::IsCrLf(int pos) {
- if (pos < 0)
- return false;
- if (pos >= (Length() - 1))
- return false;
- return (cb.CharAt(pos) == '\r') && (cb.CharAt(pos + 1) == '\n');
-}
-
-bool Document::IsDBCS(int pos) {
-#if PLAT_WIN
- if (dbcsCodePage) {
- // Anchor DBCS calculations at start of line because start of line can
- // not be a DBCS trail byte.
- int startLine = pos;
- while (startLine > 0 && cb.CharAt(startLine) != '\r' && cb.CharAt(startLine) != '\n')
- startLine--;
- while (startLine <= pos) {
- if (IsDBCSLeadByteEx(dbcsCodePage, cb.CharAt(startLine))) {
- startLine++;
- if (startLine >= pos)
- return true;
- }
- startLine++;
- }
- }
- return false;
-#else
- return false;
-#endif
-}
-
-// Normalise a position so that it is not halfway through a two byte character.
-// This can occur in two situations -
-// When lines are terminated with \r\n pairs which should be treated as one character.
-// When displaying DBCS text such as Japanese.
-// If moving, move the position in the indicated direction.
-int Document::MovePositionOutsideChar(int pos, int moveDir, bool checkLineEnd) {
- //Platform::DebugPrintf("NoCRLF %d %d\n", pos, moveDir);
- // If out of range, just return value - should be fixed up after
- if (pos < 0)
- return pos;
- if (pos > Length())
- return pos;
-
- // Position 0 and Length() can not be between any two characters
- if (pos == 0)
- return pos;
- if (pos == Length())
- return pos;
-
- // assert pos > 0 && pos < Length()
- if (checkLineEnd && IsCrLf(pos - 1)) {
- if (moveDir > 0)
- return pos + 1;
- else
- return pos - 1;
- }
-
- // Not between CR and LF
-
-#if PLAT_WIN
- if (dbcsCodePage) {
- // Anchor DBCS calculations at start of line because start of line can
- // not be a DBCS trail byte.
- int startLine = pos;
- while (startLine > 0 && cb.CharAt(startLine) != '\r' && cb.CharAt(startLine) != '\n')
- startLine--;
- bool atLeadByte = false;
- while (startLine < pos) {
- if (atLeadByte)
- atLeadByte = false;
- else if (IsDBCSLeadByteEx(dbcsCodePage, cb.CharAt(startLine)))
- atLeadByte = true;
- else
- atLeadByte = false;
- startLine++;
- //Platform::DebugPrintf("DBCS %s\n", atlead ? "D" : "-");
- }
-
- if (atLeadByte) {
- // Position is between a lead byte and a trail byte
- if (moveDir > 0)
- return pos + 1;
- else
- return pos - 1;
- }
- }
-#endif
-
- return pos;
-}
-
-void Document::ModifiedAt(int pos) {
- if (endStyled > pos)
- endStyled = pos;
-}
-
-// Document only modified by gateways DeleteChars, InsertStyledString, Undo, Redo, and SetStyleAt.
-// SetStyleAt does not change the persistent state of a document
-
-// Unlike Undo, Redo, and InsertStyledString, the pos argument is a cell number not a char number
-void Document::DeleteChars(int pos, int len) {
- if (enteredCount == 0) {
- enteredCount++;
- if (cb.IsReadOnly())
- NotifyModifyAttempt();
- if (!cb.IsReadOnly()) {
- int prevLinesTotal = LinesTotal();
- bool startSavePoint = cb.IsSavePoint();
- const char *text = cb.DeleteChars(pos*2, len * 2);
- if (startSavePoint && cb.IsCollectingUndo())
- NotifySavePoint(!startSavePoint);
- ModifiedAt(pos);
- int modFlags = SC_MOD_DELETETEXT | SC_PERFORMED_USER;
- DocModification mh(modFlags, pos, len, LinesTotal() - prevLinesTotal, text);
- NotifyModified(mh);
- }
- enteredCount--;
- }
-}
-
-void Document::InsertStyledString(int position, char *s, int insertLength) {
- if (enteredCount == 0) {
- enteredCount++;
- if (cb.IsReadOnly())
- NotifyModifyAttempt();
- if (!cb.IsReadOnly()) {
- int prevLinesTotal = LinesTotal();
- bool startSavePoint = cb.IsSavePoint();
- const char *text = cb.InsertString(position, s, insertLength);
- if (startSavePoint && cb.IsCollectingUndo())
- NotifySavePoint(!startSavePoint);
- ModifiedAt(position / 2);
-
- int modFlags = SC_MOD_INSERTTEXT | SC_PERFORMED_USER;
- DocModification mh(modFlags, position / 2, insertLength / 2, LinesTotal() - prevLinesTotal, text);
- NotifyModified(mh);
- }
- enteredCount--;
- }
-}
-
-int Document::Undo() {
- int newPos = 0;
- if (enteredCount == 0) {
- enteredCount++;
- bool startSavePoint = cb.IsSavePoint();
- int steps = cb.StartUndo();
- Platform::DebugPrintf("Steps=%d\n", steps);
- for (int step=0; step<steps; step++) {
- int prevLinesTotal = LinesTotal();
- const Action &action = cb.UndoStep();
- int cellPosition = action.position / 2;
- ModifiedAt(cellPosition);
- newPos = cellPosition;
-
- int modFlags = SC_PERFORMED_UNDO;
- // With undo, an insertion action becomes a deletion notification
- if (action.at == removeAction) {
- Platform::DebugPrintf("Insert of %d\n", action.lenData);
- newPos += action.lenData;
- modFlags |= SC_MOD_INSERTTEXT;
- } else {
- Platform::DebugPrintf("Remove of %d\n", action.lenData);
- modFlags |= SC_MOD_DELETETEXT;
- }
- if (step == steps-1)
- modFlags |= SC_LASTSTEPINUNDOREDO;
- NotifyModified(DocModification(modFlags, cellPosition, action.lenData,
- LinesTotal() - prevLinesTotal, action.data));
- }
-
- bool endSavePoint = cb.IsSavePoint();
- if (startSavePoint != endSavePoint)
- NotifySavePoint(endSavePoint);
- enteredCount--;
- }
- return newPos;
-}
-
-int Document::Redo() {
- int newPos = 0;
- if (enteredCount == 0) {
- enteredCount++;
- bool startSavePoint = cb.IsSavePoint();
- int steps = cb.StartRedo();
- for (int step=0; step<steps; step++) {
- int prevLinesTotal = LinesTotal();
- const Action &action = cb.RedoStep();
- int cellPosition = action.position / 2;
- ModifiedAt(cellPosition);
- newPos = cellPosition;
-
- int modFlags = SC_PERFORMED_REDO;
- if (action.at == insertAction) {
- newPos += action.lenData;
- modFlags |= SC_MOD_INSERTTEXT;
- } else {
- modFlags |= SC_MOD_DELETETEXT;
- }
- if (step == steps-1)
- modFlags |= SC_LASTSTEPINUNDOREDO;
- NotifyModified(DocModification(modFlags, cellPosition, action.lenData,
- LinesTotal() - prevLinesTotal, action.data));
- }
-
- bool endSavePoint = cb.IsSavePoint();
- if (startSavePoint != endSavePoint)
- NotifySavePoint(endSavePoint);
- enteredCount--;
- }
- return newPos;
-}
-
-void Document::InsertChar(int pos, char ch) {
- char chs[2];
- chs[0] = ch;
- chs[1] = 0;
- InsertStyledString(pos*2, chs, 2);
-}
-
-// Insert a null terminated string
-void Document::InsertString(int position, const char *s) {
- InsertString(position, s, strlen(s));
-}
-
-// Insert a string with a length
-void Document::InsertString(int position, const char *s, int insertLength) {
- char *sWithStyle = new char[insertLength * 2];
- if (sWithStyle) {
- for (int i = 0; i < insertLength; i++) {
- sWithStyle[i*2] = s[i];
- sWithStyle[i*2 + 1] = 0;
- }
- InsertStyledString(position*2, sWithStyle, insertLength*2);
- delete []sWithStyle;
- }
-}
-
-void Document::ChangeChar(int pos, char ch) {
- DeleteChars(pos, 1);
- InsertChar(pos, ch);
-}
-
-void Document::DelChar(int pos) {
- if (IsCrLf(pos)) {
- DeleteChars(pos, 2);
- } else if (IsDBCS(pos)) {
- DeleteChars(pos, 2);
- } else if (pos < Length()) {
- DeleteChars(pos, 1);
- }
-}
-
-int Document::DelCharBack(int pos) {
- if (pos <= 0) {
- return pos;
- } else if (IsCrLf(pos - 2)) {
- DeleteChars(pos - 2, 2);
- return pos - 2;
- } else if (IsDBCS(pos - 1)) {
- DeleteChars(pos - 2, 2);
- return pos - 2;
- } else {
- DeleteChars(pos - 1, 1);
- return pos - 1;
- }
-}
-
-void Document::Indent(bool forwards, int lineBottom, int lineTop) {
- if (forwards) {
- // Indent by a tab
- for (int line = lineBottom; line >= lineTop; line--) {
- InsertChar(LineStart(line), '\t');
- }
- } else {
- // Dedent - suck white space off the front of the line to dedent by equivalent of a tab
- for (int line = lineBottom; line >= lineTop; line--) {
- int ispc = 0;
- while (ispc < tabInChars && cb.CharAt(LineStart(line) + ispc) == ' ')
- ispc++;
- int posStartLine = LineStart(line);
- if (ispc == tabInChars) {
- DeleteChars(posStartLine, ispc);
- } else if (cb.CharAt(posStartLine + ispc) == '\t') {
- DeleteChars(posStartLine, ispc + 1);
- } else { // Hit a non-white
- DeleteChars(posStartLine, ispc);
- }
- }
- }
-}
-
-void Document::ConvertLineEnds(int eolModeSet) {
- BeginUndoAction();
- for (int pos = 0; pos < Length(); pos++) {
- if (cb.CharAt(pos) == '\r') {
- if (cb.CharAt(pos+1) == '\n') {
- if (eolModeSet != SC_EOL_CRLF) {
- DeleteChars(pos, 2);
- if (eolModeSet == SC_EOL_CR)
- InsertString(pos, "\r", 1);
- else
- InsertString(pos, "\n", 1);
- } else {
- pos++;
- }
- } else {
- if (eolModeSet != SC_EOL_CR) {
- DeleteChars(pos, 1);
- if (eolModeSet == SC_EOL_CRLF) {
- InsertString(pos, "\r\n", 2);
- pos++;
- } else {
- InsertString(pos, "\n", 1);
- }
- }
- }
- } else if (cb.CharAt(pos) == '\n') {
- if (eolModeSet != SC_EOL_LF) {
- DeleteChars(pos, 1);
- if (eolModeSet == SC_EOL_CRLF) {
- InsertString(pos, "\r\n", 2);
- pos++;
- } else {
- InsertString(pos, "\r", 1);
- }
- }
- }
- }
- EndUndoAction();
-}
-
-bool Document::IsWordChar(unsigned char ch) {
- return wordchars[ch];
-}
-
-int Document::ExtendWordSelect(int pos, int delta) {
- if (delta < 0) {
- while (pos > 0 && IsWordChar(cb.CharAt(pos - 1)))
- pos--;
- } else {
- while (pos < (Length()) && IsWordChar(cb.CharAt(pos)))
- pos++;
- }
- return pos;
-}
-
-int Document::NextWordStart(int pos, int delta) {
- if (delta < 0) {
- while (pos > 0 && (cb.CharAt(pos - 1) == ' ' || cb.CharAt(pos - 1) == '\t'))
- pos--;
- if (isspace(cb.CharAt(pos - 1))) { // Back up to previous line
- while (pos > 0 && isspace(cb.CharAt(pos - 1)))
- pos--;
- } else {
- bool startAtWordChar = IsWordChar(cb.CharAt(pos - 1));
- while (pos > 0 && !isspace(cb.CharAt(pos - 1)) && (startAtWordChar == IsWordChar(cb.CharAt(pos - 1))))
- pos--;
- }
- } else {
- bool startAtWordChar = IsWordChar(cb.CharAt(pos));
- while (pos < (Length()) && isspace(cb.CharAt(pos)))
- pos++;
- while (pos < (Length()) && !isspace(cb.CharAt(pos)) && (startAtWordChar == IsWordChar(cb.CharAt(pos))))
- pos++;
- while (pos < (Length()) && (cb.CharAt(pos) == ' ' || cb.CharAt(pos) == '\t'))
- pos++;
- }
- return pos;
-}
-
-bool Document::IsWordAt(int start, int end) {
- int lengthDoc = Length();
- if (start > 0) {
- char ch = CharAt(start - 1);
- if (IsWordChar(ch))
- return false;
- }
- if (end < lengthDoc - 1) {
- char ch = CharAt(end);
- if (IsWordChar(ch))
- return false;
- }
- return true;
-}
-
-// Find text in document, supporting both forward and backward
-// searches (just pass minPos > maxPos to do a backward search)
-// Has not been tested with backwards DBCS searches yet.
-long Document::FindText(int minPos, int maxPos, const char *s, bool caseSensitive, bool word) {
- bool forward = minPos <= maxPos;
- int increment = forward ? 1 : -1;
-
- // Range endpoints should not be inside DBCS characters, but just in case, move them.
- int startPos = MovePositionOutsideChar(minPos, increment, false);
- int endPos = MovePositionOutsideChar(maxPos, increment, false);
-
- // Compute actual search ranges needed
- int lengthFind = strlen(s);
- int endSearch = 0;
- if (startPos <= endPos) {
- endSearch = endPos - lengthFind + 1;
- } else {
- endSearch = endPos;
- }
- //Platform::DebugPrintf("Find %d %d %s %d\n", startPos, endPos, ft->lpstrText, lengthFind);
- char firstChar = s[0];
- if (!caseSensitive)
- firstChar = toupper(firstChar);
- int pos = startPos;
- while (forward ? (pos < endSearch) : (pos >= endSearch)) {
- char ch = CharAt(pos);
- if (caseSensitive) {
- if (ch == firstChar) {
- bool found = true;
- for (int posMatch = 1; posMatch < lengthFind && found; posMatch++) {
- ch = CharAt(pos + posMatch);
- if (ch != s[posMatch])
- found = false;
- }
- if (found) {
- if ((!word) || IsWordAt(pos, pos + lengthFind))
- return pos;
- }
- }
- } else {
- if (toupper(ch) == firstChar) {
- bool found = true;
- for (int posMatch = 1; posMatch < lengthFind && found; posMatch++) {
- ch = CharAt(pos + posMatch);
- if (toupper(ch) != toupper(s[posMatch]))
- found = false;
- }
- if (found) {
- if ((!word) || IsWordAt(pos, pos + lengthFind))
- return pos;
- }
- }
- }
- pos += increment;
- if (dbcsCodePage) {
- // Ensure trying to match from start of character
- pos = MovePositionOutsideChar(pos, increment, false);
- }
- }
- //Platform::DebugPrintf("Not found\n");
- return - 1;
-}
-
-int Document::LinesTotal() {
- return cb.Lines();
-}
-
-void Document::ChangeCase(Range r, bool makeUpperCase) {
- for (int pos=r.start; pos<r.end; pos++) {
- char ch = CharAt(pos);
- if (dbcsCodePage && IsDBCS(pos)) {
- pos++;
- } else {
- if (makeUpperCase) {
- if (islower(ch)) {
- ChangeChar(pos, toupper(ch));
- }
- } else {
- if (isupper(ch)) {
- ChangeChar(pos, tolower(ch));
- }
- }
- }
- }
-}
-
-void Document::SetWordChars(unsigned char *chars) {
- int ch;
- for (ch = 0; ch < 256; ch++) {
- wordchars[ch] = false;
- }
- if (chars) {
- while (*chars) {
- wordchars[*chars] = true;
- chars++;
- }
- } else {
- for (ch = 0; ch < 256; ch++) {
- wordchars[ch] = isalnum(ch) || ch == '_';
- }
- }
-}
-
-void Document::SetStylingBits(int bits) {
- stylingBits = bits;
- stylingBitsMask = 0;
- for (int bit=0; bit<stylingBits; bit++) {
- stylingBitsMask <<= 1;
- stylingBitsMask |= 1;
- }
-}
-
-void Document::StartStyling(int position, char mask) {
- stylingPos = position;
- stylingMask = mask;
-}
-
-void Document::SetStyleFor(int length, char style) {
- if (enteredCount == 0) {
- enteredCount++;
- int prevEndStyled = endStyled;
- if (cb.SetStyleFor(stylingPos, length, style, stylingMask)) {
- DocModification mh(SC_MOD_CHANGESTYLE | SC_PERFORMED_USER,
- prevEndStyled, length);
- NotifyModified(mh);
- }
- stylingPos += length;
- endStyled = stylingPos;
- enteredCount--;
- }
-}
-
-void Document::SetStyles(int length, char *styles) {
- if (enteredCount == 0) {
- enteredCount++;
- int prevEndStyled = endStyled;
- bool didChange = false;
- for (int iPos = 0; iPos < length; iPos++, stylingPos++) {
- if (cb.SetStyleAt(stylingPos, styles[iPos], stylingMask)) {
- didChange = true;
- }
- }
- endStyled = stylingPos;
- if (didChange) {
- DocModification mh(SC_MOD_CHANGESTYLE | SC_PERFORMED_USER,
- prevEndStyled, endStyled - prevEndStyled);
- NotifyModified(mh);
- }
- enteredCount--;
- }
-}
-
-bool Document::EnsureStyledTo(int pos) {
- // Ask the watchers to style, and stop as soon as one responds.
- for (int i = 0; pos > GetEndStyled() && i < lenWatchers; i++)
- watchers[i].watcher->NotifyStyleNeeded(this, watchers[i].userData, pos);
- return pos <= GetEndStyled();
-}
-
-bool Document::AddWatcher(DocWatcher *watcher, void *userData) {
- for (int i = 0; i < lenWatchers; i++) {
- if ((watchers[i].watcher == watcher) &&
- (watchers[i].userData == userData))
- return false;
- }
- WatcherWithUserData *pwNew = new WatcherWithUserData[lenWatchers + 1];
- if (!pwNew)
- return false;
- for (int j = 0; j < lenWatchers; j++)
- pwNew[j] = watchers[j];
- pwNew[lenWatchers].watcher = watcher;
- pwNew[lenWatchers].userData = userData;
- delete []watchers;
- watchers = pwNew;
- lenWatchers++;
- return true;
-}
-
-bool Document::RemoveWatcher(DocWatcher *watcher, void *userData) {
- for (int i = 0; i < lenWatchers; i++) {
- if ((watchers[i].watcher == watcher) &&
- (watchers[i].userData == userData)) {
- if (lenWatchers == 1) {
- delete []watchers;
- watchers = 0;
- lenWatchers = 0;
- } else {
- WatcherWithUserData *pwNew = new WatcherWithUserData[lenWatchers];
- if (!pwNew)
- return false;
- for (int j = 0; j < lenWatchers - 1; j++) {
- pwNew[j] = (j < i) ? watchers[j] : watchers[j + 1];
- }
- delete []watchers;
- watchers = pwNew;
- lenWatchers--;
- }
- return true;
- }
- }
- return false;
-}
-
-void Document::NotifyModifyAttempt() {
- for (int i = 0; i < lenWatchers; i++) {
- watchers[i].watcher->NotifyModifyAttempt(this, watchers[i].userData);
- }
-}
-
-void Document::NotifySavePoint(bool atSavePoint) {
- for (int i = 0; i < lenWatchers; i++) {
- watchers[i].watcher->NotifySavePoint(this, watchers[i].userData, atSavePoint);
- }
-}
-
-void Document::NotifyModified(DocModification mh) {
- for (int i = 0; i < lenWatchers; i++) {
- watchers[i].watcher->NotifyModified(this, mh, watchers[i].userData);
- }
-}
+// Scintilla source code edit control
+// Document.cxx - text document that handles notifications, DBCS, styling, words and end of line
+// Copyright 1998-2000 by Neil Hodgson <neilh@scintilla.org>
+// The License.txt file describes the conditions under which this software may be distributed.
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <ctype.h>
+
+#include "Platform.h"
+
+#include "Scintilla.h"
+#include "SVector.h"
+#include "CellBuffer.h"
+#include "Document.h"
+
+Document::Document() {
+ refCount = 0;
+#ifdef unix
+ eolMode = SC_EOL_LF;
+#else
+ eolMode = SC_EOL_CRLF;
+#endif
+ dbcsCodePage = 0;
+ stylingBits = 5;
+ stylingBitsMask = 0x1F;
+ stylingPos = 0;
+ stylingMask = 0;
+ for (int ch = 0; ch < 256; ch++) {
+ wordchars[ch] = isalnum(ch) || ch == '_';
+ }
+ endStyled = 0;
+ enteredCount = 0;
+ tabInChars = 8;
+ watchers = 0;
+ lenWatchers = 0;
+}
+
+Document::~Document() {
+ for (int i = 0; i < lenWatchers; i++) {
+ watchers[i].watcher->NotifyDeleted(this, watchers[i].userData);
+ }
+ delete []watchers;
+ watchers = 0;
+ lenWatchers = 0;
+}
+
+// Increase reference count and return its previous value.
+int Document::AddRef() {
+ return refCount++;
+}
+
+// Decrease reference count and return its provius value.
+// Delete the document if reference count reaches zero.
+int Document::Release() {
+ int curRefCount = --refCount;
+ if (curRefCount == 0)
+ delete this;
+ return curRefCount;
+}
+
+void Document::SetSavePoint() {
+ cb.SetSavePoint();
+ NotifySavePoint(true);
+}
+
+int Document::AddMark(int line, int markerNum) {
+ int prev = cb.AddMark(line, markerNum);
+ DocModification mh(SC_MOD_CHANGEMARKER, LineStart(line), 0, 0, 0);
+ NotifyModified(mh);
+ return prev;
+}
+
+void Document::DeleteMark(int line, int markerNum) {
+ cb.DeleteMark(line, markerNum);
+ DocModification mh(SC_MOD_CHANGEMARKER, LineStart(line), 0, 0, 0);
+ NotifyModified(mh);
+}
+
+void Document::DeleteMarkFromHandle(int markerHandle) {
+ cb.DeleteMarkFromHandle(markerHandle);
+ DocModification mh(SC_MOD_CHANGEMARKER, 0, 0, 0, 0);
+ NotifyModified(mh);
+}
+
+void Document::DeleteAllMarks(int markerNum) {
+ cb.DeleteAllMarks(markerNum);
+ DocModification mh(SC_MOD_CHANGEMARKER, 0, 0, 0, 0);
+ NotifyModified(mh);
+}
+
+int Document::LineStart(int line) {
+ return cb.LineStart(line);
+}
+
+int Document::LineEnd(int line) {
+ if (line == LinesTotal() - 1) {
+ return LineStart(line + 1);
+ } else {
+ int position = LineStart(line + 1) - 1;
+ // When line terminator is CR+LF, may need to go back one more
+ if ((position > LineStart(line)) && (cb.CharAt(position - 1) == '\r')) {
+ position--;
+ }
+ return position;
+ }
+}
+
+int Document::LineFromPosition(int pos) {
+ return cb.LineFromPosition(pos);
+}
+
+int Document::LineEndPosition(int position) {
+ return LineEnd(LineFromPosition(position));
+}
+
+int Document::VCHomePosition(int position) {
+ int line = LineFromPosition(position);
+ int startPosition = LineStart(line);
+ int endLine = LineStart(line + 1) - 1;
+ int startText = startPosition;
+ while (startText < endLine && (cb.CharAt(startText) == ' ' || cb.CharAt(startText) == '\t' ) )
+ startText++;
+ if (position == startText)
+ return startPosition;
+ else
+ return startText;
+}
+
+int Document::SetLevel(int line, int level) {
+ int prev = cb.SetLevel(line, level);
+ if (prev != level) {
+ DocModification mh(SC_MOD_CHANGEFOLD, LineStart(line), 0, 0, 0);
+ mh.line = line;
+ mh.foldLevelNow = level;
+ mh.foldLevelPrev = prev;
+ NotifyModified(mh);
+ }
+ return prev;
+}
+
+static bool IsSubordinate(int levelStart, int levelTry) {
+ if (levelTry & SC_FOLDLEVELWHITEFLAG)
+ return true;
+ else
+ return (levelStart & SC_FOLDLEVELNUMBERMASK) < (levelTry & SC_FOLDLEVELNUMBERMASK);
+}
+
+int Document::GetLastChild(int lineParent, int level) {
+ if (level == -1)
+ level = GetLevel(lineParent) & SC_FOLDLEVELNUMBERMASK;
+ int maxLine = LinesTotal();
+ int lineMaxSubord = lineParent;
+ while (lineMaxSubord < maxLine-1) {
+ EnsureStyledTo(LineStart(lineMaxSubord+2));
+ if (!IsSubordinate(level, GetLevel(lineMaxSubord+1)))
+ break;
+ lineMaxSubord++;
+ }
+ if (lineMaxSubord > lineParent) {
+ if (level > (GetLevel(lineMaxSubord+1) & SC_FOLDLEVELNUMBERMASK)) {
+ // Have chewed up some whitespace that belongs to a parent so seek back
+ if ((lineMaxSubord > lineParent) && (GetLevel(lineMaxSubord) & SC_FOLDLEVELWHITEFLAG)) {
+ lineMaxSubord--;
+ }
+ }
+ }
+ return lineMaxSubord;
+}
+
+int Document::GetFoldParent(int line) {
+ int level = GetLevel(line);
+ int lineLook = line-1;
+ while ((lineLook > 0) && (
+ (!(GetLevel(lineLook) & SC_FOLDLEVELHEADERFLAG)) ||
+ ((GetLevel(lineLook) & SC_FOLDLEVELNUMBERMASK) >= level))
+ ) {
+ lineLook--;
+ }
+ if ((GetLevel(lineLook) & SC_FOLDLEVELHEADERFLAG) &&
+ ((GetLevel(lineLook) & SC_FOLDLEVELNUMBERMASK) < level)) {
+ return lineLook;
+ } else {
+ return -1;
+ }
+}
+
+int Document::ClampPositionIntoDocument(int pos) {
+ return Platform::Clamp(pos, 0, Length());
+}
+
+bool Document::IsCrLf(int pos) {
+ if (pos < 0)
+ return false;
+ if (pos >= (Length() - 1))
+ return false;
+ return (cb.CharAt(pos) == '\r') && (cb.CharAt(pos + 1) == '\n');
+}
+
+bool Document::IsDBCS(int pos) {
+#if PLAT_WIN
+ if (dbcsCodePage) {
+ // Anchor DBCS calculations at start of line because start of line can
+ // not be a DBCS trail byte.
+ int startLine = pos;
+ while (startLine > 0 && cb.CharAt(startLine) != '\r' && cb.CharAt(startLine) != '\n')
+ startLine--;
+ while (startLine <= pos) {
+ if (IsDBCSLeadByteEx(dbcsCodePage, cb.CharAt(startLine))) {
+ startLine++;
+ if (startLine >= pos)
+ return true;
+ }
+ startLine++;
+ }
+ }
+ return false;
+#else
+ return false;
+#endif
+}
+
+// Normalise a position so that it is not halfway through a two byte character.
+// This can occur in two situations -
+// When lines are terminated with \r\n pairs which should be treated as one character.
+// When displaying DBCS text such as Japanese.
+// If moving, move the position in the indicated direction.
+int Document::MovePositionOutsideChar(int pos, int moveDir, bool checkLineEnd) {
+ //Platform::DebugPrintf("NoCRLF %d %d\n", pos, moveDir);
+ // If out of range, just return value - should be fixed up after
+ if (pos < 0)
+ return pos;
+ if (pos > Length())
+ return pos;
+
+ // Position 0 and Length() can not be between any two characters
+ if (pos == 0)
+ return pos;
+ if (pos == Length())
+ return pos;
+
+ // assert pos > 0 && pos < Length()
+ if (checkLineEnd && IsCrLf(pos - 1)) {
+ if (moveDir > 0)
+ return pos + 1;
+ else
+ return pos - 1;
+ }
+
+ // Not between CR and LF
+
+#if PLAT_WIN
+ if (dbcsCodePage) {
+ // Anchor DBCS calculations at start of line because start of line can
+ // not be a DBCS trail byte.
+ int startLine = pos;
+ while (startLine > 0 && cb.CharAt(startLine) != '\r' && cb.CharAt(startLine) != '\n')
+ startLine--;
+ bool atLeadByte = false;
+ while (startLine < pos) {
+ if (atLeadByte)
+ atLeadByte = false;
+ else if (IsDBCSLeadByteEx(dbcsCodePage, cb.CharAt(startLine)))
+ atLeadByte = true;
+ else
+ atLeadByte = false;
+ startLine++;
+ //Platform::DebugPrintf("DBCS %s\n", atlead ? "D" : "-");
+ }
+
+ if (atLeadByte) {
+ // Position is between a lead byte and a trail byte
+ if (moveDir > 0)
+ return pos + 1;
+ else
+ return pos - 1;
+ }
+ }
+#endif
+
+ return pos;
+}
+
+void Document::ModifiedAt(int pos) {
+ if (endStyled > pos)
+ endStyled = pos;
+}
+
+// Document only modified by gateways DeleteChars, InsertStyledString, Undo, Redo, and SetStyleAt.
+// SetStyleAt does not change the persistent state of a document
+
+// Unlike Undo, Redo, and InsertStyledString, the pos argument is a cell number not a char number
+void Document::DeleteChars(int pos, int len) {
+ if (enteredCount == 0) {
+ enteredCount++;
+ if (cb.IsReadOnly())
+ NotifyModifyAttempt();
+ if (!cb.IsReadOnly()) {
+ int prevLinesTotal = LinesTotal();
+ bool startSavePoint = cb.IsSavePoint();
+ const char *text = cb.DeleteChars(pos*2, len * 2);
+ if (startSavePoint && cb.IsCollectingUndo())
+ NotifySavePoint(!startSavePoint);
+ ModifiedAt(pos);
+ int modFlags = SC_MOD_DELETETEXT | SC_PERFORMED_USER;
+ DocModification mh(modFlags, pos, len, LinesTotal() - prevLinesTotal, text);
+ NotifyModified(mh);
+ }
+ enteredCount--;
+ }
+}
+
+void Document::InsertStyledString(int position, char *s, int insertLength) {
+ if (enteredCount == 0) {
+ enteredCount++;
+ if (cb.IsReadOnly())
+ NotifyModifyAttempt();
+ if (!cb.IsReadOnly()) {
+ int prevLinesTotal = LinesTotal();
+ bool startSavePoint = cb.IsSavePoint();
+ const char *text = cb.InsertString(position, s, insertLength);
+ if (startSavePoint && cb.IsCollectingUndo())
+ NotifySavePoint(!startSavePoint);
+ ModifiedAt(position / 2);
+
+ int modFlags = SC_MOD_INSERTTEXT | SC_PERFORMED_USER;
+ DocModification mh(modFlags, position / 2, insertLength / 2, LinesTotal() - prevLinesTotal, text);
+ NotifyModified(mh);
+ }
+ enteredCount--;
+ }
+}
+
+int Document::Undo() {
+ int newPos = 0;
+ if (enteredCount == 0) {
+ enteredCount++;
+ bool startSavePoint = cb.IsSavePoint();
+ int steps = cb.StartUndo();
+ //Platform::DebugPrintf("Steps=%d\n", steps);
+ for (int step=0; step<steps; step++) {
+ int prevLinesTotal = LinesTotal();
+ const Action &action = cb.UndoStep();
+ int cellPosition = action.position / 2;
+ ModifiedAt(cellPosition);
+ newPos = cellPosition;
+
+ int modFlags = SC_PERFORMED_UNDO;
+ // With undo, an insertion action becomes a deletion notification
+ if (action.at == removeAction) {
+ newPos += action.lenData;
+ modFlags |= SC_MOD_INSERTTEXT;
+ } else {
+ modFlags |= SC_MOD_DELETETEXT;
+ }
+ if (step == steps-1)
+ modFlags |= SC_LASTSTEPINUNDOREDO;
+ NotifyModified(DocModification(modFlags, cellPosition, action.lenData,
+ LinesTotal() - prevLinesTotal, action.data));
+ }
+
+ bool endSavePoint = cb.IsSavePoint();
+ if (startSavePoint != endSavePoint)
+ NotifySavePoint(endSavePoint);
+ enteredCount--;
+ }
+ return newPos;
+}
+
+int Document::Redo() {
+ int newPos = 0;
+ if (enteredCount == 0) {
+ enteredCount++;
+ bool startSavePoint = cb.IsSavePoint();
+ int steps = cb.StartRedo();
+ for (int step=0; step<steps; step++) {
+ int prevLinesTotal = LinesTotal();
+ const Action &action = cb.RedoStep();
+ int cellPosition = action.position / 2;
+ ModifiedAt(cellPosition);
+ newPos = cellPosition;
+
+ int modFlags = SC_PERFORMED_REDO;
+ if (action.at == insertAction) {
+ newPos += action.lenData;
+ modFlags |= SC_MOD_INSERTTEXT;
+ } else {
+ modFlags |= SC_MOD_DELETETEXT;
+ }
+ if (step == steps-1)
+ modFlags |= SC_LASTSTEPINUNDOREDO;
+ NotifyModified(DocModification(modFlags, cellPosition, action.lenData,
+ LinesTotal() - prevLinesTotal, action.data));
+ }
+
+ bool endSavePoint = cb.IsSavePoint();
+ if (startSavePoint != endSavePoint)
+ NotifySavePoint(endSavePoint);
+ enteredCount--;
+ }
+ return newPos;
+}
+
+void Document::InsertChar(int pos, char ch) {
+ char chs[2];
+ chs[0] = ch;
+ chs[1] = 0;
+ InsertStyledString(pos*2, chs, 2);
+}
+
+// Insert a null terminated string
+void Document::InsertString(int position, const char *s) {
+ InsertString(position, s, strlen(s));
+}
+
+// Insert a string with a length
+void Document::InsertString(int position, const char *s, int insertLength) {
+ char *sWithStyle = new char[insertLength * 2];
+ if (sWithStyle) {
+ for (int i = 0; i < insertLength; i++) {
+ sWithStyle[i*2] = s[i];
+ sWithStyle[i*2 + 1] = 0;
+ }
+ InsertStyledString(position*2, sWithStyle, insertLength*2);
+ delete []sWithStyle;
+ }
+}
+
+void Document::ChangeChar(int pos, char ch) {
+ DeleteChars(pos, 1);
+ InsertChar(pos, ch);
+}
+
+void Document::DelChar(int pos) {
+ if (IsCrLf(pos)) {
+ DeleteChars(pos, 2);
+ } else if (IsDBCS(pos)) {
+ DeleteChars(pos, 2);
+ } else if (pos < Length()) {
+ DeleteChars(pos, 1);
+ }
+}
+
+int Document::DelCharBack(int pos) {
+ if (pos <= 0) {
+ return pos;
+ } else if (IsCrLf(pos - 2)) {
+ DeleteChars(pos - 2, 2);
+ return pos - 2;
+ } else if (IsDBCS(pos - 1)) {
+ DeleteChars(pos - 2, 2);
+ return pos - 2;
+ } else {
+ DeleteChars(pos - 1, 1);
+ return pos - 1;
+ }
+}
+
+void Document::Indent(bool forwards, int lineBottom, int lineTop) {
+ if (forwards) {
+ // Indent by a tab
+ for (int line = lineBottom; line >= lineTop; line--) {
+ InsertChar(LineStart(line), '\t');
+ }
+ } else {
+ // Dedent - suck white space off the front of the line to dedent by equivalent of a tab
+ for (int line = lineBottom; line >= lineTop; line--) {
+ int ispc = 0;
+ while (ispc < tabInChars && cb.CharAt(LineStart(line) + ispc) == ' ')
+ ispc++;
+ int posStartLine = LineStart(line);
+ if (ispc == tabInChars) {
+ DeleteChars(posStartLine, ispc);
+ } else if (cb.CharAt(posStartLine + ispc) == '\t') {
+ DeleteChars(posStartLine, ispc + 1);
+ } else { // Hit a non-white
+ DeleteChars(posStartLine, ispc);
+ }
+ }
+ }
+}
+
+void Document::ConvertLineEnds(int eolModeSet) {
+ BeginUndoAction();
+ for (int pos = 0; pos < Length(); pos++) {
+ if (cb.CharAt(pos) == '\r') {
+ if (cb.CharAt(pos+1) == '\n') {
+ if (eolModeSet != SC_EOL_CRLF) {
+ DeleteChars(pos, 2);
+ if (eolModeSet == SC_EOL_CR)
+ InsertString(pos, "\r", 1);
+ else
+ InsertString(pos, "\n", 1);
+ } else {
+ pos++;
+ }
+ } else {
+ if (eolModeSet != SC_EOL_CR) {
+ DeleteChars(pos, 1);
+ if (eolModeSet == SC_EOL_CRLF) {
+ InsertString(pos, "\r\n", 2);
+ pos++;
+ } else {
+ InsertString(pos, "\n", 1);
+ }
+ }
+ }
+ } else if (cb.CharAt(pos) == '\n') {
+ if (eolModeSet != SC_EOL_LF) {
+ DeleteChars(pos, 1);
+ if (eolModeSet == SC_EOL_CRLF) {
+ InsertString(pos, "\r\n", 2);
+ pos++;
+ } else {
+ InsertString(pos, "\r", 1);
+ }
+ }
+ }
+ }
+ EndUndoAction();
+}
+
+bool Document::IsWordChar(unsigned char ch) {
+ return wordchars[ch];
+}
+
+int Document::ExtendWordSelect(int pos, int delta) {
+ if (delta < 0) {
+ while (pos > 0 && IsWordChar(cb.CharAt(pos - 1)))
+ pos--;
+ } else {
+ while (pos < (Length()) && IsWordChar(cb.CharAt(pos)))
+ pos++;
+ }
+ return pos;
+}
+
+int Document::NextWordStart(int pos, int delta) {
+ if (delta < 0) {
+ while (pos > 0 && (cb.CharAt(pos - 1) == ' ' || cb.CharAt(pos - 1) == '\t'))
+ pos--;
+ if (isspace(cb.CharAt(pos - 1))) { // Back up to previous line
+ while (pos > 0 && isspace(cb.CharAt(pos - 1)))
+ pos--;
+ } else {
+ bool startAtWordChar = IsWordChar(cb.CharAt(pos - 1));
+ while (pos > 0 && !isspace(cb.CharAt(pos - 1)) && (startAtWordChar == IsWordChar(cb.CharAt(pos - 1))))
+ pos--;
+ }
+ } else {
+ bool startAtWordChar = IsWordChar(cb.CharAt(pos));
+ while (pos < (Length()) && isspace(cb.CharAt(pos)))
+ pos++;
+ while (pos < (Length()) && !isspace(cb.CharAt(pos)) && (startAtWordChar == IsWordChar(cb.CharAt(pos))))
+ pos++;
+ while (pos < (Length()) && (cb.CharAt(pos) == ' ' || cb.CharAt(pos) == '\t'))
+ pos++;
+ }
+ return pos;
+}
+
+bool Document::IsWordAt(int start, int end) {
+ int lengthDoc = Length();
+ if (start > 0) {
+ char ch = CharAt(start - 1);
+ if (IsWordChar(ch))
+ return false;
+ }
+ if (end < lengthDoc - 1) {
+ char ch = CharAt(end);
+ if (IsWordChar(ch))
+ return false;
+ }
+ return true;
+}
+
+// Find text in document, supporting both forward and backward
+// searches (just pass minPos > maxPos to do a backward search)
+// Has not been tested with backwards DBCS searches yet.
+long Document::FindText(int minPos, int maxPos, const char *s, bool caseSensitive, bool word) {
+ bool forward = minPos <= maxPos;
+ int increment = forward ? 1 : -1;
+
+ // Range endpoints should not be inside DBCS characters, but just in case, move them.
+ int startPos = MovePositionOutsideChar(minPos, increment, false);
+ int endPos = MovePositionOutsideChar(maxPos, increment, false);
+
+ // Compute actual search ranges needed
+ int lengthFind = strlen(s);
+ int endSearch = 0;
+ if (startPos <= endPos) {
+ endSearch = endPos - lengthFind + 1;
+ } else {
+ endSearch = endPos;
+ }
+ //Platform::DebugPrintf("Find %d %d %s %d\n", startPos, endPos, ft->lpstrText, lengthFind);
+ char firstChar = s[0];
+ if (!caseSensitive)
+ firstChar = toupper(firstChar);
+ int pos = startPos;
+ while (forward ? (pos < endSearch) : (pos >= endSearch)) {
+ char ch = CharAt(pos);
+ if (caseSensitive) {
+ if (ch == firstChar) {
+ bool found = true;
+ for (int posMatch = 1; posMatch < lengthFind && found; posMatch++) {
+ ch = CharAt(pos + posMatch);
+ if (ch != s[posMatch])
+ found = false;
+ }
+ if (found) {
+ if ((!word) || IsWordAt(pos, pos + lengthFind))
+ return pos;
+ }
+ }
+ } else {
+ if (toupper(ch) == firstChar) {
+ bool found = true;
+ for (int posMatch = 1; posMatch < lengthFind && found; posMatch++) {
+ ch = CharAt(pos + posMatch);
+ if (toupper(ch) != toupper(s[posMatch]))
+ found = false;
+ }
+ if (found) {
+ if ((!word) || IsWordAt(pos, pos + lengthFind))
+ return pos;
+ }
+ }
+ }
+ pos += increment;
+ if (dbcsCodePage) {
+ // Ensure trying to match from start of character
+ pos = MovePositionOutsideChar(pos, increment, false);
+ }
+ }
+ //Platform::DebugPrintf("Not found\n");
+ return - 1;
+}
+
+int Document::LinesTotal() {
+ return cb.Lines();
+}
+
+void Document::ChangeCase(Range r, bool makeUpperCase) {
+ for (int pos=r.start; pos<r.end; pos++) {
+ char ch = CharAt(pos);
+ if (dbcsCodePage && IsDBCS(pos)) {
+ pos++;
+ } else {
+ if (makeUpperCase) {
+ if (islower(ch)) {
+ ChangeChar(pos, toupper(ch));
+ }
+ } else {
+ if (isupper(ch)) {
+ ChangeChar(pos, tolower(ch));
+ }
+ }
+ }
+ }
+}
+
+void Document::SetWordChars(unsigned char *chars) {
+ int ch;
+ for (ch = 0; ch < 256; ch++) {
+ wordchars[ch] = false;
+ }
+ if (chars) {
+ while (*chars) {
+ wordchars[*chars] = true;
+ chars++;
+ }
+ } else {
+ for (ch = 0; ch < 256; ch++) {
+ wordchars[ch] = isalnum(ch) || ch == '_';
+ }
+ }
+}
+
+void Document::SetStylingBits(int bits) {
+ stylingBits = bits;
+ stylingBitsMask = 0;
+ for (int bit=0; bit<stylingBits; bit++) {
+ stylingBitsMask <<= 1;
+ stylingBitsMask |= 1;
+ }
+}
+
+void Document::StartStyling(int position, char mask) {
+ stylingPos = position;
+ stylingMask = mask;
+}
+
+void Document::SetStyleFor(int length, char style) {
+ if (enteredCount == 0) {
+ enteredCount++;
+ int prevEndStyled = endStyled;
+ if (cb.SetStyleFor(stylingPos, length, style, stylingMask)) {
+ DocModification mh(SC_MOD_CHANGESTYLE | SC_PERFORMED_USER,
+ prevEndStyled, length);
+ NotifyModified(mh);
+ }
+ stylingPos += length;
+ endStyled = stylingPos;
+ enteredCount--;
+ }
+}
+
+void Document::SetStyles(int length, char *styles) {
+ if (enteredCount == 0) {
+ enteredCount++;
+ int prevEndStyled = endStyled;
+ bool didChange = false;
+ for (int iPos = 0; iPos < length; iPos++, stylingPos++) {
+ if (cb.SetStyleAt(stylingPos, styles[iPos], stylingMask)) {
+ didChange = true;
+ }
+ }
+ endStyled = stylingPos;
+ if (didChange) {
+ DocModification mh(SC_MOD_CHANGESTYLE | SC_PERFORMED_USER,
+ prevEndStyled, endStyled - prevEndStyled);
+ NotifyModified(mh);
+ }
+ enteredCount--;
+ }
+}
+
+bool Document::EnsureStyledTo(int pos) {
+ // Ask the watchers to style, and stop as soon as one responds.
+ for (int i = 0; pos > GetEndStyled() && i < lenWatchers; i++)
+ watchers[i].watcher->NotifyStyleNeeded(this, watchers[i].userData, pos);
+ return pos <= GetEndStyled();
+}
+
+bool Document::AddWatcher(DocWatcher *watcher, void *userData) {
+ for (int i = 0; i < lenWatchers; i++) {
+ if ((watchers[i].watcher == watcher) &&
+ (watchers[i].userData == userData))
+ return false;
+ }
+ WatcherWithUserData *pwNew = new WatcherWithUserData[lenWatchers + 1];
+ if (!pwNew)
+ return false;
+ for (int j = 0; j < lenWatchers; j++)
+ pwNew[j] = watchers[j];
+ pwNew[lenWatchers].watcher = watcher;
+ pwNew[lenWatchers].userData = userData;
+ delete []watchers;
+ watchers = pwNew;
+ lenWatchers++;
+ return true;
+}
+
+bool Document::RemoveWatcher(DocWatcher *watcher, void *userData) {
+ for (int i = 0; i < lenWatchers; i++) {
+ if ((watchers[i].watcher == watcher) &&
+ (watchers[i].userData == userData)) {
+ if (lenWatchers == 1) {
+ delete []watchers;
+ watchers = 0;
+ lenWatchers = 0;
+ } else {
+ WatcherWithUserData *pwNew = new WatcherWithUserData[lenWatchers];
+ if (!pwNew)
+ return false;
+ for (int j = 0; j < lenWatchers - 1; j++) {
+ pwNew[j] = (j < i) ? watchers[j] : watchers[j + 1];
+ }
+ delete []watchers;
+ watchers = pwNew;
+ lenWatchers--;
+ }
+ return true;
+ }
+ }
+ return false;
+}
+
+void Document::NotifyModifyAttempt() {
+ for (int i = 0; i < lenWatchers; i++) {
+ watchers[i].watcher->NotifyModifyAttempt(this, watchers[i].userData);
+ }
+}
+
+void Document::NotifySavePoint(bool atSavePoint) {
+ for (int i = 0; i < lenWatchers; i++) {
+ watchers[i].watcher->NotifySavePoint(this, watchers[i].userData, atSavePoint);
+ }
+}
+
+void Document::NotifyModified(DocModification mh) {
+ for (int i = 0; i < lenWatchers; i++) {
+ watchers[i].watcher->NotifyModified(this, mh, watchers[i].userData);
+ }
+}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-13 13:09:25 +0000