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/*
SPDX-FileCopyrightText: 2008 Hamish Rodda <rodda@kde.org>
SPDX-FileCopyrightText: 2008-2009 David Nolden <david.nolden.kdevelop@art-master.de>
SPDX-License-Identifier: LGPL-2.0-or-later
*/
#include "problemhighlighter.h"
#include <serialization/indexedstring.h>
#include <language/duchain/navigation/abstractnavigationwidget.h>
#include <interfaces/icore.h>
#include <interfaces/ilanguagecontroller.h>
#include <interfaces/icompletionsettings.h>
#include <language/duchain/duchainlock.h>
#include <language/duchain/duchainutils.h>
#include <language/duchain/topducontext.h>
#include <language/duchain/navigation/problemnavigationcontext.h>
#include <language/editor/documentrange.h>
#include <shell/problem.h>
#include <KTextEditor/Document>
#include <KTextEditor/View>
#include <KColorScheme>
using namespace KTextEditor;
using namespace KDevelop;
namespace
{
QColor colorForSeverity(IProblem::Severity severity)
{
KColorScheme scheme(QPalette::Active);
switch (severity) {
case IProblem::Error:
return scheme.foreground(KColorScheme::NegativeText).color();
case IProblem::Warning:
return scheme.foreground(KColorScheme::NeutralText).color();
case IProblem::Hint:
default:
return scheme.foreground(KColorScheme::PositiveText).color();
}
}
}
ProblemHighlighter::ProblemHighlighter(KTextEditor::Document* document)
: m_document(document)
{
Q_ASSERT(m_document);
connect(ICore::self()->languageController()->completionSettings(), &ICompletionSettings::settingsChanged, this,
&ProblemHighlighter::settingsChanged);
connect(m_document.data(), &Document::aboutToReload, this, &ProblemHighlighter::clearProblems);
connect(m_document, &Document::aboutToInvalidateMovingInterfaceContent, this, &ProblemHighlighter::clearProblems);
// This can't use new style connect syntax since aboutToRemoveText is only part of KTextEditor::DocumentPrivate
connect(m_document, SIGNAL(aboutToRemoveText(KTextEditor::Range)), this,
SLOT(aboutToRemoveText(KTextEditor::Range)));
}
void ProblemHighlighter::settingsChanged()
{
// Re-highlight
setProblems(m_problems);
}
ProblemHighlighter::~ProblemHighlighter()
{
if (m_topHLRanges.isEmpty() || !m_document)
return;
qDeleteAll(m_topHLRanges);
}
void ProblemHighlighter::setProblems(const QVector<IProblem::Ptr>& problems)
{
if (!m_document)
return;
if (m_problems == problems)
return;
const bool hadProblems = !m_problems.isEmpty();
m_problems = problems;
qDeleteAll(m_topHLRanges);
m_topHLRanges.clear();
IndexedString url(m_document->url());
/// TODO: create a better MarkInterface that makes it possible to add the marks to the scrollbar
/// but having no background.
/// also make it nicer together with other plugins, this would currently fail with
/// this method...
const uint errorMarkType = KTextEditor::Document::MarkTypes::Error;
const uint warningMarkType = KTextEditor::Document::MarkTypes::Warning;
if (hadProblems) {
// clear previously added marks
const auto oldMarks = m_document->marks();
for (KTextEditor::Mark* mark : oldMarks) {
if (mark->type & (errorMarkType | warningMarkType)) {
m_document->removeMark(mark->line, errorMarkType | warningMarkType);
}
}
}
if (problems.isEmpty()) {
return;
}
DUChainReadLocker lock;
TopDUContext* top = DUChainUtils::standardContextForUrl(m_document->url());
for (const IProblem::Ptr& problem : problems) {
if (problem->finalLocation().document != url || !problem->finalLocation().isValid())
continue;
KTextEditor::Range range;
if (top)
range = top->transformFromLocalRevision(RangeInRevision::castFromSimpleRange(problem->finalLocation()));
else
range = problem->finalLocation();
// Fix problem's location range if necessary
if (problem->finalLocationMode() != IProblem::Range && range.onSingleLine()) {
int line = range.start().line();
const QString lineString = m_document->line(line);
int startColumn = 0;
int endColumn = lineString.length();
// If the line contains only space-characters then
// we will highlight it "as is", without trimming.
if (problem->finalLocationMode() == IProblem::TrimmedLine && !lineString.trimmed().isEmpty()) {
while (lineString.at(startColumn++).isSpace()) {}
--startColumn;
while (lineString.at(--endColumn).isSpace()) {}
++endColumn;
}
range.setStart(Cursor(line, startColumn));
range.setEnd(Cursor(line, endColumn));
problem->setFinalLocation(DocumentRange(problem->finalLocation().document, range));
problem->setFinalLocationMode(IProblem::Range);
}
if (range.end().line() >= m_document->lines())
range.end() = KTextEditor::Cursor(m_document->endOfLine(m_document->lines() - 1));
if (range.isEmpty()) {
range.setEnd(range.end() + KTextEditor::Cursor(0, 1));
}
auto* const problemRange = m_document->newMovingRange(range);
m_topHLRanges.append(problemRange);
if (problem->source() != IProblem::ToDo
&& (problem->severity() != IProblem::Hint
|| ICore::self()->languageController()->completionSettings()->highlightSemanticProblems())) {
KTextEditor::Attribute::Ptr attribute(new KTextEditor::Attribute());
attribute->setUnderlineStyle(QTextCharFormat::WaveUnderline);
attribute->setUnderlineColor(colorForSeverity(problem->severity()));
problemRange->setAttribute(attribute);
}
if (ICore::self()->languageController()->completionSettings()->highlightProblematicLines()) {
uint mark;
if (problem->severity() == IProblem::Error) {
mark = errorMarkType;
} else if (problem->severity() == IProblem::Warning) {
mark = warningMarkType;
} else {
continue;
}
m_document->addMark(problem->finalLocation().start().line(), mark);
}
}
}
void ProblemHighlighter::aboutToRemoveText(const KTextEditor::Range& range)
{
if (range.onSingleLine()) { // no need to optimize this
return;
}
QList<MovingRange*>::iterator it = m_topHLRanges.begin();
while (it != m_topHLRanges.end()) {
if (range.contains((*it)->toRange())) {
delete (*it);
it = m_topHLRanges.erase(it);
} else {
++it;
}
}
}
void ProblemHighlighter::clearProblems()
{
setProblems({});
}
#include "moc_problemhighlighter.cpp"
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