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