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Ability to auto-determine whether we want spaces instead of tabs or not

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Based on the previous (referrable) line

Merge-request: 1766
Reviewed-by: Thorbjørn Lindeijer <thorbjorn.lindeijer@nokia.com>
This commit is contained in:
Roopesh Chander
2009-10-03 23:15:17 +05:30
committed by Thorbjørn Lindeijer
parent 7391ba388c
commit 2a58049e6a
2 changed files with 27 additions and 5 deletions
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28
src/plugins/texteditor/tabsettings.cpp
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@@ -48,6 +48,7 @@ namespace TextEditor {
TabSettings::TabSettings() :
m_spacesForTabs(true),
m_autoSpacesForTabs(false),
m_autoIndent(true),
m_smartBackspace(false),
m_tabSize(8),
@@ -223,10 +224,29 @@ int TabSettings::indentedColumn(int column, bool doIndent) const
return qMax(0, aligned - m_indentSize);
}
QString TabSettings::indentationString(int startColumn, int targetColumn) const
bool TabSettings::guessSpacesForTabs(const QTextBlock& _block) const {
if (m_autoSpacesForTabs && _block.isValid()) {
QTextBlock block = _block;
const QTextDocument* doc = block.document();
while (block.isValid() && block != doc->begin()) {
block = block.previous();
if (block.text().isEmpty())
continue;
QChar firstChar = block.text().at(0);
if (firstChar == QLatin1Char(' ')) {
return true;
} else if (firstChar == QLatin1Char('\t')) {
return false;
}
}
}
return m_spacesForTabs;
}
QString TabSettings::indentationString(int startColumn, int targetColumn, const QTextBlock& block) const
{
targetColumn = qMax(startColumn, targetColumn);
if (m_spacesForTabs)
if (guessSpacesForTabs(block))
return QString(targetColumn - startColumn, QLatin1Char(' '));
QString s;
@@ -252,7 +272,7 @@ void TabSettings::indentLine(QTextBlock block, int newIndent) const
if (indentationColumn(text) == newIndent)
return;
const QString indentString = indentationString(0, newIndent);
const QString indentString = indentationString(0, newIndent, block);
newIndent = indentString.length();
if (oldBlockLength == indentString.length() && text == indentString)
@@ -278,7 +298,7 @@ void TabSettings::reindentLine(QTextBlock block, int delta) const
if (oldIndent == newIndent)
return;
const QString indentString = indentationString(0, newIndent);
const QString indentString = indentationString(0, newIndent, block);
newIndent = indentString.length();
if (oldBlockLength == indentString.length() && text == indentString)