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Generalized Utils::unCommentSelection; Started implementing editor details (configuration by highlight definition, actions).

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This commit is contained in:
Leandro Melo
2010-04-30 13:08:06 +02:00
parent c8441462c9
commit 65ca06e0f0
15 changed files with 308 additions and 485 deletions
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202
src/libs/utils/uncommentselection.cpp
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@@ -28,13 +28,92 @@
**************************************************************************/
#include "uncommentselection.h"
#include <QtCore/QtGlobal>
#include <QtGui/QPlainTextEdit>
#include <QtGui/QTextCursor>
#include <QtGui/QTextBlock>
#include <QtGui/QTextDocument>
void Utils::unCommentSelection(QPlainTextEdit *edit)
using namespace Utils;
CommentDefinition::CommentDefinition() :
m_afterWhiteSpaces(false),
m_singleLine(QLatin1String("//")),
m_multiLineStart(QLatin1String("/*")),
m_multiLineEnd(QLatin1String("*/"))
{}
CommentDefinition &CommentDefinition::setAfterWhiteSpaces(const bool afterWhiteSpaces)
{
m_afterWhiteSpaces = afterWhiteSpaces;
return *this;
}
CommentDefinition &CommentDefinition::setSingleLine(const QString &singleLine)
{
m_singleLine = singleLine;
return *this;
}
CommentDefinition &CommentDefinition::setMultiLineStart(const QString &multiLineStart)
{
m_multiLineStart = multiLineStart;
return *this;
}
CommentDefinition &CommentDefinition::setMultiLineEnd(const QString &multiLineEnd)
{
m_multiLineEnd = multiLineEnd;
return *this;
}
bool CommentDefinition::isAfterWhiteSpaces() const
{ return m_afterWhiteSpaces; }
const QString &CommentDefinition::singleLine() const
{ return m_singleLine; }
const QString &CommentDefinition::multiLineStart() const
{ return m_multiLineStart; }
const QString &CommentDefinition::multiLineEnd() const
{ return m_multiLineEnd; }
bool CommentDefinition::hasSingleLineStyle() const
{ return !m_singleLine.isEmpty(); }
bool CommentDefinition::hasMultiLineStyle() const
{ return !m_multiLineStart.isEmpty() && !m_multiLineEnd.isEmpty(); }
namespace {
bool isComment(const QString &text,
int index,
const CommentDefinition &definition,
const QString & (CommentDefinition::* comment) () const)
{
const QString &commentType = ((definition).*(comment))();
const int length = commentType.length();
Q_ASSERT(text.length() - index >= length);
int i = 0;
while (i < length) {
if (text.at(index + i) != commentType.at(i))
return false;
++i;
}
return true;
}
} // namespace anynomous
void Utils::unCommentSelection(QPlainTextEdit *edit, const CommentDefinition &definition)
{
if (!definition.hasSingleLineStyle() && !definition.hasMultiLineStyle())
return;
QTextCursor cursor = edit->textCursor();
QTextDocument *doc = cursor.document();
cursor.beginEditBlock();
@@ -53,78 +132,107 @@ void Utils::unCommentSelection(QPlainTextEdit *edit)
endBlock = endBlock.previous();
}
bool doCStyleUncomment = false;
bool doCStyleComment = false;
bool doCppStyleUncomment = false;
bool doMultiLineStyleUncomment = false;
bool doMultiLineStyleComment = false;
bool doSingleLineStyleUncomment = false;
bool hasSelection = cursor.hasSelection();
if (hasSelection) {
if (hasSelection && definition.hasMultiLineStyle()) {
QString startText = startBlock.text();
int startPos = start - startBlock.position();
const int multiLineStartLength = definition.multiLineStart().length();
bool hasLeadingCharacters = !startText.left(startPos).trimmed().isEmpty();
if ((startPos >= 2
&& startText.at(startPos-2) == QLatin1Char('/')
&& startText.at(startPos-1) == QLatin1Char('*'))) {
startPos -= 2;
start -= 2;
if (startPos >= multiLineStartLength
&& isComment(startText,
startPos - multiLineStartLength,
definition,
&CommentDefinition::multiLineStart)) {
startPos -= multiLineStartLength;
start -= multiLineStartLength;
}
bool hasSelStart = (startPos < startText.length() - 1
&& startText.at(startPos) == QLatin1Char('/')
&& startText.at(startPos+1) == QLatin1Char('*'));
bool hasSelStart = (startPos < startText.length() - multiLineStartLength
&& isComment(startText,
startPos,
definition,
&CommentDefinition::multiLineStart));
QString endText = endBlock.text();
int endPos = end - endBlock.position();
bool hasTrailingCharacters = !endText.left(endPos).remove(QLatin1String("//")).trimmed().isEmpty()
&& !endText.mid(endPos).trimmed().isEmpty();
if ((endPos <= endText.length() - 2
&& endText.at(endPos) == QLatin1Char('*')
&& endText.at(endPos+1) == QLatin1Char('/'))) {
endPos += 2;
end += 2;
const int multiLineEndLength = definition.multiLineEnd().length();
bool hasTrailingCharacters =
!endText.left(endPos).remove(definition.singleLine()).trimmed().isEmpty()
&& !endText.mid(endPos).trimmed().isEmpty();
if (endPos <= endText.length() - multiLineEndLength
&& isComment(endText, endPos, definition, &CommentDefinition::multiLineEnd)) {
endPos += multiLineEndLength;
end += multiLineEndLength;
}
bool hasSelEnd = (endPos >= 2
&& endText.at(endPos-2) == QLatin1Char('*')
&& endText.at(endPos-1) == QLatin1Char('/'));
bool hasSelEnd = (endPos >= multiLineEndLength
&& isComment(endText,
endPos - multiLineEndLength,
definition,
&CommentDefinition::multiLineEnd));
doCStyleUncomment = hasSelStart && hasSelEnd;
doCStyleComment = !doCStyleUncomment && (hasLeadingCharacters || hasTrailingCharacters);
doMultiLineStyleUncomment = hasSelStart && hasSelEnd;
doMultiLineStyleComment = !doMultiLineStyleUncomment
&& (hasLeadingCharacters
|| hasTrailingCharacters
|| !definition.hasSingleLineStyle());
} else if (!hasSelection && !definition.hasSingleLineStyle()) {
QString text = startBlock.text().trimmed();
doMultiLineStyleUncomment = text.startsWith(definition.multiLineStart())
&& text.endsWith(definition.multiLineEnd());
doMultiLineStyleComment = !doMultiLineStyleUncomment && !text.isEmpty();
start = startBlock.position();
end = endBlock.position() + endBlock.length() - 1;
}
if (doCStyleUncomment) {
if (doMultiLineStyleUncomment) {
cursor.setPosition(end);
cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor, 2);
cursor.movePosition(QTextCursor::PreviousCharacter,
QTextCursor::KeepAnchor,
definition.multiLineEnd().length());
cursor.removeSelectedText();
cursor.setPosition(start);
cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, 2);
cursor.movePosition(QTextCursor::NextCharacter,
QTextCursor::KeepAnchor,
definition.multiLineStart().length());
cursor.removeSelectedText();
} else if (doCStyleComment) {
} else if (doMultiLineStyleComment) {
cursor.setPosition(end);
cursor.insertText(QLatin1String("*/"));
cursor.insertText(definition.multiLineEnd());
cursor.setPosition(start);
cursor.insertText(QLatin1String("/*"));
cursor.insertText(definition.multiLineStart());
} else {
endBlock = endBlock.next();
doCppStyleUncomment = true;
doSingleLineStyleUncomment = true;
for (QTextBlock block = startBlock; block != endBlock; block = block.next()) {
QString text = block.text().trimmed();
if (!text.isEmpty() && !text.startsWith(QLatin1String("//"))) {
doCppStyleUncomment = false;
if (!text.isEmpty() && !text.startsWith(definition.singleLine())) {
doSingleLineStyleUncomment = false;
break;
}
}
const int singleLineLength = definition.singleLine().length();
for (QTextBlock block = startBlock; block != endBlock; block = block.next()) {
if (doCppStyleUncomment) {
if (doSingleLineStyleUncomment) {
QString text = block.text();
int i = 0;
while (i < text.size() - 1) {
if (text.at(i) == QLatin1Char('/')
&& text.at(i + 1) == QLatin1Char('/')) {
while (i <= text.size() - singleLineLength) {
if (isComment(text, i, definition, &CommentDefinition::singleLine)) {
cursor.setPosition(block.position() + i);
cursor.movePosition(QTextCursor::NextCharacter, QTextCursor::KeepAnchor, 2);
cursor.movePosition(QTextCursor::NextCharacter,
QTextCursor::KeepAnchor,
singleLineLength);
cursor.removeSelectedText();
break;
}
@@ -136,8 +244,11 @@ void Utils::unCommentSelection(QPlainTextEdit *edit)
QString text = block.text();
foreach(QChar c, text) {
if (!c.isSpace()) {
cursor.setPosition(block.position());
cursor.insertText(QLatin1String("//"));
if (definition.isAfterWhiteSpaces())
cursor.setPosition(block.position() + text.indexOf(c));
else
cursor.setPosition(block.position());
cursor.insertText(definition.singleLine());
break;
}
}
@@ -146,10 +257,10 @@ void Utils::unCommentSelection(QPlainTextEdit *edit)
}
// adjust selection when commenting out
if (hasSelection && !doCStyleUncomment && !doCppStyleUncomment) {
if (hasSelection && !doMultiLineStyleUncomment && !doSingleLineStyleUncomment) {
cursor = edit->textCursor();
if (!doCStyleComment)
start = startBlock.position(); // move the double slashes into the selection
if (!doMultiLineStyleComment)
start = startBlock.position(); // move the comment into the selection
int lastSelPos = anchorIsStart ? cursor.position() : cursor.anchor();
if (anchorIsStart) {
cursor.setPosition(start);
@@ -163,4 +274,3 @@ void Utils::unCommentSelection(QPlainTextEdit *edit)
cursor.endEditBlock();
}