strawberry-audio-player-win.../src/widgets/multiloadingindicator.cpp

110 lines
3.2 KiB
C++

/*
* Strawberry Music Player
* This file was part of Clementine.
* Copyright 2010, David Sansome <me@davidsansome.com>
*
* Strawberry is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Strawberry is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with Strawberry. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "config.h"
#include <QtGlobal>
#include <QWidget>
#include <QList>
#include <QString>
#include <QStringList>
#include <QPainter>
#include <QSize>
#include <QRect>
#include <QSizePolicy>
#include <QStringList>
#include <QFontMetrics>
#include <QPaintEvent>
#include "core/taskmanager.h"
#include "multiloadingindicator.h"
#include "widgets/busyindicator.h"
const int MultiLoadingIndicator::kVerticalPadding = 4;
const int MultiLoadingIndicator::kHorizontalPadding = 6;
const int MultiLoadingIndicator::kSpacing = 6;
MultiLoadingIndicator::MultiLoadingIndicator(QWidget *parent)
: QWidget(parent),
task_manager_(nullptr),
spinner_(new BusyIndicator(this))
{
spinner_->move(kHorizontalPadding, kVerticalPadding);
setSizePolicy(QSizePolicy::Maximum, QSizePolicy::Fixed);
}
QSize MultiLoadingIndicator::sizeHint() const {
#if (QT_VERSION >= QT_VERSION_CHECK(5, 11, 0))
const int width = kHorizontalPadding * 2 + spinner_->sizeHint().width() + kSpacing + fontMetrics().horizontalAdvance(text_);
#else
const int width = kHorizontalPadding * 2 + spinner_->sizeHint().width() + kSpacing + fontMetrics().width(text_);
#endif
const int height = kVerticalPadding * 2 + qMax(spinner_->sizeHint().height(), fontMetrics().height());
return QSize(width, height);
}
void MultiLoadingIndicator::SetTaskManager(TaskManager* task_manager) {
task_manager_ = task_manager;
connect(task_manager_, SIGNAL(TasksChanged()), SLOT(UpdateText()));
}
void MultiLoadingIndicator::UpdateText() {
QList<TaskManager::Task> tasks = task_manager_->GetTasks();
QStringList strings;
for (const TaskManager::Task& task : tasks) {
QString task_text(task.name);
task_text[0] = task_text[0].toLower();
if (task.progress_max) {
int percentage = float(task.progress) / task.progress_max * 100;
task_text += QString(" %1%").arg(percentage);
}
strings << task_text;
}
text_ = strings.join(", ");
if (!text_.isEmpty()) {
text_[0] = text_[0].toUpper();
text_ += "...";
}
emit TaskCountChange(tasks.count());
update();
updateGeometry();
}
void MultiLoadingIndicator::paintEvent(QPaintEvent*) {
QPainter p(this);
const QRect text_rect(
kHorizontalPadding + spinner_->sizeHint().width() + kSpacing, kVerticalPadding,
width() - kHorizontalPadding * 2 - spinner_->sizeHint().width() - kSpacing,
height() - kVerticalPadding * 2);
p.drawText(text_rect, Qt::TextSingleLine | Qt::AlignLeft, fontMetrics().elidedText(text_, Qt::ElideRight, text_rect.width()));
}