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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#pragma once
#include <sourcerangewithtextcontainer.h>
#include <QString>
#include <QTextCharFormat>
namespace ClangRefactoring {
template<typename SyntaxHighlighter>
class ClangQueryExampleHighlightMarker
{
using SourceRange = ClangBackEnd::V2::SourceRangeContainer;
using SourceRanges = ClangBackEnd::V2::SourceRangeContainers;
using SourceRangeWithTexts = ClangBackEnd::SourceRangeWithTextContainers;
public:
ClangQueryExampleHighlightMarker(SourceRangeWithTexts &&sourceRanges,
SyntaxHighlighter &highlighter,
const std::array<QTextCharFormat, 5> &textFormats)
: m_sourceRanges(std::move(sourceRanges)),
m_currentSourceRangeIterator(m_sourceRanges.begin()),
m_highlighter(highlighter),
m_textFormats(textFormats)
{
}
ClangQueryExampleHighlightMarker(SyntaxHighlighter &highlighter)
: m_currentSourceRangeIterator(m_sourceRanges.begin()),
m_highlighter(highlighter)
{
}
void setTextFormats(std::array<QTextCharFormat, 5> &&textFormats)
{
m_textFormats = std::move(textFormats);
}
void setSourceRanges(SourceRangeWithTexts &&sourceRanges)
{
m_currentlyUsedSourceRanges.clear();
m_sourceRanges = std::move(sourceRanges);
m_currentSourceRangeIterator = m_sourceRanges.begin();
}
void highlightSourceRanges(uint currentLineNumber, const QString ¤tText)
{
while (hasSourceRangesForCurrentLine(currentLineNumber)) {
SourceRange &sourceRange = *m_currentSourceRangeIterator;
popSourceRangeIfMultiLineEndsHere(currentLineNumber, sourceRange.start.column);
formatSourceRange(sourceRange,
currentLineNumber,
currentText.size(),
int(m_currentlyUsedSourceRanges.size()));
pushSourceRangeIfMultiLine(sourceRange);
++m_currentSourceRangeIterator;
}
}
void highlightCurrentlyUsedSourceRanges(uint currentLineNumber, const QString ¤tText)
{
formatCurrentlyUsedSourceRanges(currentLineNumber, currentText.size());
popSourceRangeIfMultiLineEndsHereAndAllSourceRangesAreConsumed(currentLineNumber);
}
void highlightBlock(uint currentLineNumber, const QString ¤tText)
{
popSourceRangeIfMultiLineEndedBefore(currentLineNumber);
highlightCurrentlyUsedSourceRanges(currentLineNumber, currentText);
highlightSourceRanges(currentLineNumber, currentText);
}
bool hasSourceRangesForCurrentLine(uint currentLineNumber) const
{
return m_currentSourceRangeIterator != m_sourceRanges.end()
&& m_currentSourceRangeIterator->start.line == currentLineNumber;
}
bool hasOnlySCurrentlyUsedSourceRanges() const
{
return m_currentSourceRangeIterator == m_sourceRanges.end()
&& !m_currentlyUsedSourceRanges.empty();
}
void formatSingleSourceRange(const SourceRange &sourceRange,
int textFormatIndex)
{
int size = int(sourceRange.end.column - sourceRange.start.column);
m_highlighter.setFormat(int(sourceRange.start.column) - 1,
size,
m_textFormats[textFormatIndex]);
}
void formatStartMultipleSourceRange(const SourceRange &sourceRange,
int textSize,
int textFormatIndex)
{
int size = textSize - int(sourceRange.start.column) + 1;
m_highlighter.setFormat(int(sourceRange.start.column) - 1,
size,
m_textFormats[textFormatIndex]);
}
void formatEndMultipleSourceRange(const SourceRange &sourceRange,
int textFormatIndex)
{
int size = int(sourceRange.end.column) - 1;
m_highlighter.setFormat(0, size, m_textFormats[textFormatIndex]);
}
void formatMiddleMultipleSourceRange(int textSize,
int textFormatIndex)
{
m_highlighter.setFormat(0, textSize, m_textFormats[textFormatIndex]);
}
void formatSourceRange(const SourceRange &sourceRange,
uint currentLineNumber,
int textSize,
int textFormatIndex)
{
if (sourceRange.start.line == sourceRange.end.line)
formatSingleSourceRange(sourceRange, textFormatIndex);
else if (sourceRange.start.line == currentLineNumber)
formatStartMultipleSourceRange(sourceRange, textSize, textFormatIndex);
else if (sourceRange.end.line == currentLineNumber)
formatEndMultipleSourceRange(sourceRange, textFormatIndex);
else
formatMiddleMultipleSourceRange(textSize, textFormatIndex);
}
void formatCurrentlyUsedSourceRanges(uint currentLineNumber, int textSize)
{
int textFormatIndex = 0;
for (const SourceRange &sourceRange : m_currentlyUsedSourceRanges) {
formatSourceRange(sourceRange, currentLineNumber, textSize, textFormatIndex);
++textFormatIndex;
}
}
bool currentlyUsedHasEndLineAndColumnNumber(uint currentLineNumber, uint currentColumnNumber)
{
return !m_currentlyUsedSourceRanges.empty()
&& m_currentlyUsedSourceRanges.back().end.line <= currentLineNumber
&& m_currentlyUsedSourceRanges.back().end.column <= currentColumnNumber;
}
void popSourceRangeIfMultiLineEndsHere(uint currentLineNumber, uint currentColumnNumber)
{
while (currentlyUsedHasEndLineAndColumnNumber(currentLineNumber, currentColumnNumber))
m_currentlyUsedSourceRanges.pop_back();
}
bool currentlyUsedHasEndLineNumberAndSourceRangesAreConsumed(uint currentLineNumber)
{
return !m_currentlyUsedSourceRanges.empty()
&& m_currentSourceRangeIterator == m_sourceRanges.end()
&& m_currentlyUsedSourceRanges.back().end.line == currentLineNumber;
}
void popSourceRangeIfMultiLineEndsHereAndAllSourceRangesAreConsumed(uint currentLineNumber)
{
while (currentlyUsedHasEndLineNumberAndSourceRangesAreConsumed(currentLineNumber))
m_currentlyUsedSourceRanges.pop_back();
}
bool currentlyUsedHasEndedBeforeLineNumber(uint currentLineNumber)
{
return !m_currentlyUsedSourceRanges.empty()
&& m_currentlyUsedSourceRanges.back().end.line < currentLineNumber;
}
void popSourceRangeIfMultiLineEndedBefore(uint currentLineNumber)
{
while (currentlyUsedHasEndedBeforeLineNumber(currentLineNumber))
m_currentlyUsedSourceRanges.pop_back();
}
void pushSourceRangeIfMultiLine(SourceRange &sourceRange)
{
m_currentlyUsedSourceRanges.push_back(sourceRange);
}
private:
SourceRangeWithTexts m_sourceRanges;
SourceRangeWithTexts::iterator m_currentSourceRangeIterator;
SourceRanges m_currentlyUsedSourceRanges;
SyntaxHighlighter &m_highlighter;
std::array<QTextCharFormat, 5> m_textFormats;
};
} // namespace ClangRefactoring
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