File size: 5,209 Bytes
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// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// * Neither the name of ETH Zurich and UNC Chapel Hill nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.
//
// Author: Johannes L. Schoenberger (jsch-at-demuc-dot-de)
#include "ui/log_widget.h"
namespace colmap {
LogWidget::LogWidget(QWidget* parent, const int max_num_blocks) {
setWindowFlags(Qt::Window);
setWindowTitle("Log");
resize(320, parent->height());
QGridLayout* grid = new QGridLayout(this);
grid->setContentsMargins(5, 10, 5, 5);
qRegisterMetaType<QTextCursor>("QTextCursor");
qRegisterMetaType<QTextBlock>("QTextBlock");
QTimer* timer = new QTimer(this);
connect(timer, &QTimer::timeout, this, &LogWidget::Flush);
timer->start(100);
// Comment these lines if debugging, otherwise debug messages won't appear
// on the console and the output is lost in the log widget when crashing
cout_redirector_ = new StandardOutputRedirector<char, std::char_traits<char>>(
std::cout, LogWidget::Update, this);
cerr_redirector_ = new StandardOutputRedirector<char, std::char_traits<char>>(
std::cerr, LogWidget::Update, this);
clog_redirector_ = new StandardOutputRedirector<char, std::char_traits<char>>(
std::clog, LogWidget::Update, this);
QHBoxLayout* left_button_layout = new QHBoxLayout();
QPushButton* save_log_button = new QPushButton(tr("Save"), this);
connect(save_log_button, &QPushButton::released, this, &LogWidget::SaveLog);
left_button_layout->addWidget(save_log_button);
QPushButton* clear_button = new QPushButton(tr("Clear"), this);
connect(clear_button, &QPushButton::released, this, &LogWidget::Clear);
left_button_layout->addWidget(clear_button);
grid->addLayout(left_button_layout, 0, 0, Qt::AlignLeft);
QHBoxLayout* right_button_layout = new QHBoxLayout();
grid->addLayout(right_button_layout, 0, 1, Qt::AlignRight);
text_box_ = new QPlainTextEdit(this);
text_box_->setReadOnly(true);
text_box_->setMaximumBlockCount(max_num_blocks);
text_box_->setWordWrapMode(QTextOption::NoWrap);
text_box_->setFont(QFont("Courier", 10));
grid->addWidget(text_box_, 1, 0, 1, 2);
}
LogWidget::~LogWidget() {
if (log_file_.is_open()) {
log_file_.close();
}
delete cout_redirector_;
delete cerr_redirector_;
delete clog_redirector_;
}
void LogWidget::Append(const std::string& text) {
QMutexLocker locker(&mutex_);
text_queue_ += text;
// Dump to log file
if (log_file_.is_open()) {
log_file_ << text;
}
}
void LogWidget::Flush() {
QMutexLocker locker(&mutex_);
if (text_queue_.size() > 0) {
// Write to log widget
text_box_->moveCursor(QTextCursor::End);
text_box_->insertPlainText(QString::fromStdString(text_queue_));
text_box_->moveCursor(QTextCursor::End);
text_queue_.clear();
}
}
void LogWidget::Clear() {
QMutexLocker locker(&mutex_);
text_queue_.clear();
text_box_->clear();
}
void LogWidget::Update(const char* text, std::streamsize count,
void* log_widget_ptr) {
std::string text_str;
for (std::streamsize i = 0; i < count; ++i) {
if (text[i] == '\n') {
text_str += "\n";
} else {
text_str += text[i];
}
}
LogWidget* log_widget = static_cast<LogWidget*>(log_widget_ptr);
log_widget->Append(text_str);
}
void LogWidget::SaveLog() {
const std::string log_path =
QFileDialog::getSaveFileName(this, tr("Select path to log file"), "",
tr("Log (*.log)"))
.toUtf8()
.constData();
if (log_path == "") {
return;
}
std::ofstream file(log_path, std::ios::app);
CHECK(file.is_open()) << log_path;
file << text_box_->toPlainText().toUtf8().constData();
}
} // namespace colmap
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