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easy_profiler/profiler_gui/text_highlighter.cpp
2024-05-13 04:09:30 -04:00

105 lines
4.5 KiB
C++

/************************************************************************
* file name : text_highlighter.cpp
* ----------------- :
* creation time : 2019/10/12
* author : Victor Zarubkin
* email : v.s.zarubkin@gmail.com
* ----------------- :
* description : The file contains implementation of TextHighlighter.
* ----------------- :
* license : Lightweight profiler library for c++
* : Copyright(C) 2016-2019 Sergey Yagovtsev, Victor Zarubkin
* :
* : Licensed under either of
* : * MIT license (LICENSE.MIT or http://opensource.org/licenses/MIT)
* : * Apache License, Version 2.0, (LICENSE.APACHE or http://www.apache.org/licenses/LICENSE-2.0)
* : at your option.
* :
* : The MIT License
* :
* : Permission is hereby granted, free of charge, to any person obtaining a copy
* : of this software and associated documentation files (the "Software"), to deal
* : in the Software without restriction, including without limitation the rights
* : to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
* : of the Software, and to permit persons to whom the Software is furnished
* : to do so, subject to the following conditions:
* :
* : The above copyright notice and this permission notice shall be included in all
* : copies or substantial portions of the Software.
* :
* : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
* : INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* : PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* : LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* : TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
* : USE OR OTHER DEALINGS IN THE SOFTWARE.
* :
* : The Apache License, Version 2.0 (the "License")
* :
* : You may not use this file except in compliance with the License.
* : You may obtain a copy of the License at
* :
* : http://www.apache.org/licenses/LICENSE-2.0
* :
* : Unless required by applicable law or agreed to in writing, software
* : distributed under the License is distributed on an "AS IS" BASIS,
* : WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* : See the License for the specific language governing permissions and
* : limitations under the License.
************************************************************************/
#include "text_highlighter.h"
#include <QColor>
#include <QRegExp>
#include <easy/details/profiler_colors.h>
#include "common_functions.h"
EASY_CONSTEXPR auto HighlightColor = profiler::colors::Yellow;
EASY_CONSTEXPR auto CurrentHighlightColor = profiler::colors::Magenta;
TextHighlighter::TextHighlighter(
QTextDocument* doc,
const QColor& normalTextColor,
const QColor& lightTextColor,
const QString& pattern,
Qt::CaseSensitivity caseSensitivity,
bool current
)
: QSyntaxHighlighter(doc)
, m_pattern(pattern)
, m_caseSensitivity(caseSensitivity)
{
auto color = current ? CurrentHighlightColor : HighlightColor;
m_textCharFormat.setBackground(QColor::fromRgba(color));
m_textCharFormat.setForeground(profiler_gui::isLightColor(color) ? normalTextColor : lightTextColor);
}
TextHighlighter::~TextHighlighter()
{
}
void TextHighlighter::highlightBlock(const QString& text)
{
if (m_pattern.isEmpty())
{
return;
}
QRegExp expression(m_pattern, m_caseSensitivity);
int index = text.indexOf(expression.pattern());
while (index >= 0)
{
const auto length = expression.cap().length();
setFormat(index, length, m_textCharFormat);
auto prevIndex = index;
index = text.indexOf(expression.pattern(), index + length);
if (index <= prevIndex)
{
break;
}
}
}