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XCode-style tab behavior

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This commit is contained in:
Joel Nordell
2009-05-18 12:21:30 -05:00
parent bb6f56f553
commit ffd19fe8a0
5 changed files with 131 additions and 37 deletions
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31
src/plugins/texteditor/tabsettings.cpp
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@@ -40,6 +40,7 @@ static const char *smartBackspaceKey = "SmartBackspace";
static const char *autoIndentKey = "AutoIndent";
static const char *tabSizeKey = "TabSize";
static const char *indentSizeKey = "IndentSize";
static const char *tabKeyBehaviorKey = "TabKeyBehavior";
static const char *groupPostfix = "TabSettings";
namespace TextEditor {
@@ -49,7 +50,8 @@ TabSettings::TabSettings() :
m_autoIndent(true),
m_smartBackspace(false),
m_tabSize(8),
m_indentSize(4)
m_indentSize(4),
m_tabKeyBehavior(TabNeverIndents)
{
}
@@ -64,6 +66,7 @@ void TabSettings::toSettings(const QString &category, QSettings *s) const
s->setValue(QLatin1String(smartBackspaceKey), m_smartBackspace);
s->setValue(QLatin1String(tabSizeKey), m_tabSize);
s->setValue(QLatin1String(indentSizeKey), m_indentSize);
s->setValue(QLatin1String(tabKeyBehaviorKey), m_tabKeyBehavior);
s->endGroup();
}
@@ -81,6 +84,7 @@ void TabSettings::fromSettings(const QString &category, const QSettings *s)
m_smartBackspace = s->value(group + QLatin1String(smartBackspaceKey), m_smartBackspace).toBool();
m_tabSize = s->value(group + QLatin1String(tabSizeKey), m_tabSize).toInt();
m_indentSize = s->value(group + QLatin1String(indentSizeKey), m_indentSize).toInt();
m_tabKeyBehavior = (TabKeyBehavior)s->value(group + QLatin1String(tabKeyBehaviorKey), m_tabKeyBehavior).toInt();
}
int TabSettings::lineIndentPosition(const QString &text) const
@@ -140,6 +144,28 @@ bool TabSettings::isIndentationClean(const QString &text) const
return true;
}
bool TabSettings::tabShouldIndent(const QTextDocument *document, QTextCursor cursor, int *suggestedPosition) const
{
if (m_tabKeyBehavior == TabNeverIndents)
return false;
QTextCursor tc = cursor;
if (suggestedPosition)
*suggestedPosition = tc.position(); // At least suggest original position
tc.movePosition(QTextCursor::StartOfLine);
if (tc.atBlockEnd()) // cursor was on a blank line
return true;
if (document->characterAt(tc.position()).isSpace()) {
tc.movePosition(QTextCursor::WordRight);
if (tc.columnNumber() >= cursor.columnNumber()) {
if (suggestedPosition)
*suggestedPosition = tc.position(); // Suggest position after whitespace
if (m_tabKeyBehavior == TabLeadingWhitespaceIndents)
return true;
}
}
return (m_tabKeyBehavior == TabAlwaysIndents);
}
int TabSettings::columnAt(const QString &text, int position) const
{
int column = 0;
@@ -229,7 +255,8 @@ bool TabSettings::equals(const TabSettings &ts) const
&& m_autoIndent == ts.m_autoIndent
&& m_smartBackspace == ts.m_smartBackspace
&& m_tabSize == ts.m_tabSize
&& m_indentSize == ts.m_indentSize;
&& m_indentSize == ts.m_indentSize
&& m_tabKeyBehavior == ts.m_tabKeyBehavior;
}
} // namespace TextEditor