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/*
* Cantata
*
* Copyright (c) 2011-2022 Craig Drummond <craig.p.drummond@gmail.com>
*
* ----
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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 this program; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "messageoverlay.h"
#include "support/utils.h"
#include "toolbutton.h"
#include <QApplication>
#include <QPaintEvent>
#include <QPainter>
#include <QTimer>
MessageOverlay::MessageOverlay(QObject* p)
: QWidget(nullptr), timer(nullptr)
#ifdef Q_OS_MAC
,
closeOnLeft(true)
#else
,
closeOnLeft(Utils::Unity == Utils::currentDe())
#endif
{
Q_UNUSED(p)
spacing = fontMetrics().height();
setVisible(false);
setMinimumHeight(spacing * 2);
setMaximumHeight(spacing * 2);
cancelButton = new ToolButton(this);
Icon::init(cancelButton);
cancelButton->setToolTip(tr("Cancel"));
QVariantMap redOpt;
redOpt.insert("color", Icon::constRed);
cancelButton->setIcon(Icon::fa(fa::fa_solid, fa::fa_close, redOpt));
cancelButton->adjustSize();
connect(cancelButton, SIGNAL(clicked()), SIGNAL(cancel()));
}
void MessageOverlay::setWidget(QWidget* widget)
{
setParent(widget);
widget->installEventFilter(this);
}
void MessageOverlay::setText(const QString& txt, int timeout, bool allowCancel)
{
if (txt == text) {
return;
}
text = txt;
cancelButton->setVisible(allowCancel);
setAttribute(Qt::WA_TransparentForMouseEvents, !allowCancel);
setVisible(!text.isEmpty());
if (!text.isEmpty()) {
setSizeAndPosition();
update();
if (-1 != timeout) {
if (!timer) {
timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(timeout()));
}
timer->start(timeout);
}
}
}
void MessageOverlay::paintEvent(QPaintEvent*)
{
QPainter p(this);
QRect r(rect());
QRectF rf(r.x() + 0.5, r.y() + 0.5, r.width() - 1, r.height() - 1);
QColor borderCol = palette().color(QPalette::Highlight).darker(120);
QColor col = palette().color(QPalette::Window);
QPainterPath path = Utils::buildPath(rf, r.height() / 4.0);
col.setAlphaF(0.8);
p.setRenderHint(QPainter::Antialiasing, true);
p.fillPath(path, col);
p.setPen(QPen(borderCol, qMax(2, r.height() / 16)));
p.drawPath(path);
int pad = r.height() / 4;
if (cancelButton->isVisible()) {
if (Qt::LeftToRight == layoutDirection() && !closeOnLeft) {
rf.adjust(pad, pad, -((pad * 2) + cancelButton->width()), -pad);
}
else {
rf.adjust(((pad * 2) + cancelButton->width()), pad, -pad, -pad);
}
}
else {
rf.adjust(pad, pad, -pad, -pad);
}
QFont fnt(QApplication::font());
fnt.setBold(true);
QFontMetrics fm(fnt);
col = palette().color(QPalette::WindowText);
p.setPen(col);
p.setFont(fnt);
p.drawText(rf, fm.elidedText(text, Qt::ElideRight, r.width(), QPalette::WindowText), QTextOption(Qt::LeftToRight == layoutDirection() ? Qt::AlignLeft : Qt::AlignRight));
p.end();
}
void MessageOverlay::timeout()
{
setVisible(false);
text = QString();
}
bool MessageOverlay::eventFilter(QObject* o, QEvent* e)
{
if (o == parentWidget() && isVisible() && QEvent::Resize == e->type()) {
setSizeAndPosition();
}
return QObject::eventFilter(o, e);
}
void MessageOverlay::setSizeAndPosition()
{
int currentWidth = width();
int desiredWidth = parentWidget()->width() - (spacing * 2);
QPoint currentPos = pos();
QPoint desiredPos = QPoint(spacing, parentWidget()->height() - (height() + spacing));
if (currentWidth != desiredWidth) {
int pad = height() / 4;
resize(desiredWidth, height());
cancelButton->move(QPoint(Qt::LeftToRight == layoutDirection() && !closeOnLeft
? desiredWidth - (cancelButton->width() + pad)
: pad,
(height() - cancelButton->height()) / 2));
}
if (currentPos != desiredPos) {
move(desiredPos);
}
}
#include "moc_messageoverlay.cpp"
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