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Comment tweaks

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`//` is placed at the column where text starts on the first line
Toggle comment can insert a line comment with no selection
Selection state is retained
Undo restores selection and cursor position
This commit is contained in:
Brian Fiete 2021-12-21 14:46:29 -05:00
parent 74a63f7561
commit 4c421033ab
1 changed files with 124 additions and 93 deletions
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189
IDE/src/ui/SourceEditWidgetContent.bf
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@ -2167,6 +2167,11 @@ namespace IDE.ui
if (CheckReadOnly())
return false;
var startLineAndCol = CursorLineAndColumn;
int startTextPos = CursorTextPos;
var prevSelection = mSelection;
bool hadSelection = HasSelection();
if ((!HasSelection()) && (doComment != null))
{
CursorToLineEnd();
@ -2177,12 +2182,13 @@ namespace IDE.ui
if ((HasSelection()) && (mSelection.Value.Length > 1))
{
var startLineAndCol = CursorLineAndColumn;
UndoBatchStart undoBatchStart = new UndoBatchStart("embeddedCommentBlock");
mData.mUndoManager.Add(undoBatchStart);
mData.mUndoManager.Add(new SetCursorAction(this));
var setCursorAction = new SetCursorAction(this);
setCursorAction.mSelection = prevSelection;
setCursorAction.mCursorTextPos = (.)startTextPos;
mData.mUndoManager.Add(setCursorAction);
int minPos = mSelection.GetValueOrDefault().MinPos;
int maxPos = mSelection.GetValueOrDefault().MaxPos;
@ -2216,9 +2222,12 @@ namespace IDE.ui
if (undoBatchStart != null)
mData.mUndoManager.Add(undoBatchStart.mBatchEnd);
if (startTextPos <= minPos)
CursorLineAndColumn = startLineAndCol;
else if (startTextPos < maxPos)
CursorTextPos = startTextPos + 2;
if (doComment == null)
if ((doComment == null) || (!hadSelection))
mSelection = null;
return true;
@ -2229,120 +2238,142 @@ namespace IDE.ui
public bool CommentLines()
{
bool? doComment = true;
if (CheckReadOnly())
return false;
bool noStar = false;
int startTextPos = CursorTextPos;
var prevSelection = mSelection;
bool hadSelection = HasSelection();
var startLineAndCol = CursorLineAndColumn;
if ((!HasSelection()) && (doComment != null))
if (!HasSelection())
{
CursorToLineEnd();
int cursorEndPos = CursorTextPos;
CursorToLineStart(false);
mSelection = .(CursorTextPos, cursorEndPos);
noStar = true;
}
if (true || (HasSelection()) && (mSelection.Value.Length > 0))
{
// set selection to begin from line start
int lineIdx;
int lineChar;
GetLineCharAtIdx(mSelection.GetValueOrDefault().MinPos,out lineIdx, out lineChar);
MoveCursorTo(lineIdx, 0);
mSelection = .(CursorTextPos, mSelection.GetValueOrDefault().MaxPos);
UndoBatchStart undoBatchStart = new UndoBatchStart("embeddedCommentLines");
mData.mUndoManager.Add(undoBatchStart);
mData.mUndoManager.Add(new SetCursorAction(this));
var setCursorAction = new SetCursorAction(this);
setCursorAction.mSelection = prevSelection;
setCursorAction.mCursorTextPos = (.)startTextPos;
mData.mUndoManager.Add(setCursorAction);
int minPos = mSelection.GetValueOrDefault().MinPos;
int maxPos = mSelection.GetValueOrDefault().MaxPos;
mSelection = null;
var str = scope String();
ExtractString(minPos, maxPos - minPos, str);
var trimmedStr = scope String();
trimmedStr.Append(str);
int32 startLen = (int32)trimmedStr.Length;
trimmedStr.TrimStart();
int32 afterTrimStart = (int32)trimmedStr.Length;
trimmedStr.TrimEnd();
//int32 afterTrimEnd = (int32)trimmedStr.Length;
trimmedStr.Append('\n');
int firstCharPos = minPos + (startLen - afterTrimStart);
//int lastCharPos = maxPos - (afterTrimStart - afterTrimEnd);
int q = 0;
if (doComment != false)
while (minPos >= 0)
{
while (firstCharPos >= 0 && SafeGetChar(firstCharPos) != '\n')
{
firstCharPos--;
var c = mData.mText[minPos - 1].mChar;
if (c == '\n')
break;
minPos--;
}
bool blank=true;
for (int i = firstCharPos + 1; i < maxPos + q; i++)
{
blank=false;
CursorTextPos = i; // needed to add i < maxPos + q; for this to work with InsertAtCursor
InsertAtCursor("//"); q++; q++;
while (SafeGetChar(i) != '\n' && i < maxPos + q)
int wantLineCol = -1;
int lineStartCol = 0;
bool didLineComment = false;
for (int i = minPos; i < maxPos; i++)
{
i++;
bool isSpace = false;
var c = mData.mText[i].mChar;
if (didLineComment)
{
if (c == '\n')
{
didLineComment = false;
lineStartCol = 0;
}
continue;
}
bool commentNow = false;
if ((wantLineCol != -1) && (lineStartCol >= wantLineCol))
commentNow = true;
if (c == '\t')
{
lineStartCol += 4;
isSpace = true;
}
else if (c == ' ')
{
lineStartCol++;
isSpace = true;
}
if (!isSpace)
{
if (c == '\n')
{
}
commentNow = true;
if (wantLineCol == -1)
wantLineCol = lineStartCol;
}
if (commentNow)
{
CursorTextPos = i;
String str = scope .();
while (lineStartCol + 4 <= wantLineCol)
{
lineStartCol += 4;
str.Append("\t");
}
str.Append("//");
InsertAtCursor(str);
didLineComment = true;
maxPos += str.Length;
}
}
mSelection = EditSelection(minPos, maxPos + q);
}
mSelection = EditSelection(minPos, maxPos);
if (undoBatchStart != null)
mData.mUndoManager.Add(undoBatchStart.mBatchEnd);
CursorLineAndColumn = startLineAndCol;
if (doComment == null)
if (!hadSelection)
mSelection = null;
return true;
}
//return false;
}
public bool ToggleComment(bool? doComment = null)
{
if (CheckReadOnly())
return false;
bool noStar = false;
int startTextPos = CursorTextPos;
bool doLineComment = false;
var prevSelection = mSelection;
var startLineAndCol = CursorLineAndColumn;
if ((!HasSelection()) && (doComment != null))
LineAndColumn? startLineAndCol = CursorLineAndColumn;
if (!HasSelection())
{
CursorToLineEnd();
int cursorEndPos = CursorTextPos;
CursorToLineStart(false);
mSelection = .(CursorTextPos, cursorEndPos);
noStar = true;
doLineComment = true;
}
if ((HasSelection()) && (mSelection.Value.Length > 0))
{
int lineIdx;
int lineChar;
GetLineCharAtIdx(mSelection.GetValueOrDefault().MinPos, out lineIdx, out lineChar);
MoveCursorTo(lineIdx, 0);
mSelection = .(CursorTextPos, mSelection.GetValueOrDefault().MaxPos);
UndoBatchStart undoBatchStart = new UndoBatchStart("embeddedToggleComment");
mData.mUndoManager.Add(undoBatchStart);
mData.mUndoManager.Add(new SetCursorAction(this));
var setCursorAction = new SetCursorAction(this);
setCursorAction.mSelection = prevSelection;
setCursorAction.mCursorTextPos = (.)startTextPos;
mData.mUndoManager.Add(setCursorAction);
int minPos = mSelection.GetValueOrDefault().MinPos;
int maxPos = mSelection.GetValueOrDefault().MaxPos;
@ -2370,7 +2401,7 @@ namespace IDE.ui
if (undoBatchStart != null)
mData.mUndoManager.Add(undoBatchStart.mBatchEnd);
CursorLineAndColumn = startLineAndCol;
CursorLineAndColumn = startLineAndCol.Value;
if (doComment == null)
mSelection = null;
@ -2397,7 +2428,6 @@ namespace IDE.ui
CursorToLineEnd();
int cursorEndPos = CursorTextPos;
mSelection = .(minPos, cursorEndPos);
}
else if ((doComment != true) && (trimmedStr.StartsWith("/*")))
{
@ -2408,7 +2438,7 @@ namespace IDE.ui
mSelection = EditSelection(lastCharPos - 4, lastCharPos - 2);
DeleteChar();
if (doComment != null)
if (prevSelection != null)
mSelection = EditSelection(firstCharPos, lastCharPos - 4);
}
}
@ -2416,9 +2446,9 @@ namespace IDE.ui
|| nc >= 1 && (SafeGetChar(maxPos-1) != ' ' && SafeGetChar(maxPos-1) != '\t') && SafeGetChar(maxPos-1) != '\n'))
{ //if selection is from beginning of the line then we want to use // comment, that's why the check for line count and ' ' and tab
CursorTextPos = firstCharPos;
if (noStar) {
if (doLineComment)
{
CursorTextPos = minPos;
InsertAtCursor("//"); //goes here if no selection
}
else
@ -2427,17 +2457,17 @@ namespace IDE.ui
CursorTextPos = lastCharPos + 2;
InsertAtCursor("*/");
}
if (!noStar && doComment != null)
mSelection = EditSelection(firstCharPos, lastCharPos + 4);
if (startTextPos <= minPos)
CursorLineAndColumn = startLineAndCol.Value;
else
CursorTextPos = startTextPos + 2;
startLineAndCol = null;
}
else if (doComment != false)
{
while (firstCharPos >= 0 && SafeGetChar(firstCharPos) != '\n')
{
firstCharPos--;
}
for (int i = firstCharPos + 1; i < maxPos + q; i++)
for (int i = firstCharPos; i < maxPos + q; i++)
{
CursorTextPos = i; // needed to add i < maxPos + q; for this to work with InsertAtCursor
InsertAtCursor("//"); q++; q++;
@ -2457,9 +2487,10 @@ namespace IDE.ui
if (undoBatchStart != null)
mData.mUndoManager.Add(undoBatchStart.mBatchEnd);
CursorLineAndColumn = startLineAndCol;
if (startLineAndCol != null)
CursorLineAndColumn = startLineAndCol.Value;
if (doComment == null)
if (prevSelection == null)
mSelection = null;
return true;