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/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
****************************************************************************/
#include "GUI/coregui/Views/CommonWidgets/detailsbutton.h"
#include "GUI/coregui/utils/hostosinfo.h"
#include <QGraphicsOpacityEffect>
#include <QGuiApplication>
#include <QPaintEvent>
#include <QPainter>
#include <QPropertyAnimation>
#include <QStyleOption>
using namespace Utils;
namespace
{
const bool FlatProjectsMode(false);
const QColor DetailsButtonBackgroundColorHover("#eff0f1");
} // namespace
FadingWidget::FadingWidget(QWidget* parent)
: FadingPanel(parent), m_opacityEffect(new QGraphicsOpacityEffect)
{
m_opacityEffect->setOpacity(0);
setGraphicsEffect(m_opacityEffect);
// Workaround for issue with QGraphicsEffect. GraphicsEffect
// currently clears with Window color. Remove if flickering
// no longer occurs on fade-in
QPalette pal;
pal.setBrush(QPalette::All, QPalette::Window, Qt::transparent);
setPalette(pal);
}
void FadingWidget::setOpacity(qreal value)
{
m_opacityEffect->setOpacity(value);
}
void FadingWidget::fadeTo(qreal value)
{
QPropertyAnimation* animation = new QPropertyAnimation(m_opacityEffect, "opacity");
animation->setDuration(200);
animation->setEndValue(value);
animation->start(QAbstractAnimation::DeleteWhenStopped);
}
qreal FadingWidget::opacity()
{
return m_opacityEffect->opacity();
}
DetailsButton::DetailsButton(QWidget* parent) : QAbstractButton(parent), m_fader(0)
{
setCheckable(true);
setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Minimum);
setText(tr("Details"));
}
QSize DetailsButton::sizeHint() const
{
// TODO: Adjust this when icons become available!
#if QT_VERSION >= QT_VERSION_CHECK(5, 11, 0)
const int w = fontMetrics().horizontalAdvance(text()) + 32;
#else
const int w = fontMetrics().width(text()) + 32;
#endif
if (GUI_OS_Utils::HostOsInfo::isMacHost())
return QSize(w, 34);
return QSize(w, 22);
}
bool DetailsButton::event(QEvent* e)
{
switch (e->type()) {
case QEvent::Enter: {
QPropertyAnimation* animation = new QPropertyAnimation(this, "fader");
animation->setDuration(200);
animation->setEndValue(1.0);
animation->start(QAbstractAnimation::DeleteWhenStopped);
} break;
case QEvent::Leave: {
QPropertyAnimation* animation = new QPropertyAnimation(this, "fader");
animation->setDuration(200);
animation->setEndValue(0.0);
animation->start(QAbstractAnimation::DeleteWhenStopped);
} break;
default:
return QAbstractButton::event(e);
}
return false;
}
void DetailsButton::paintEvent(QPaintEvent* e)
{
QWidget::paintEvent(e);
QPainter p(this);
// draw hover animation
if (!GUI_OS_Utils::HostOsInfo::isMacHost() && !isDown() && m_fader > 0) {
QColor c = DetailsButtonBackgroundColorHover;
c.setAlpha(int(m_fader * c.alpha()));
QRect r = rect();
if (!FlatProjectsMode)
r.adjust(1, 1, -2, -2);
p.fillRect(r, c);
}
if (isChecked()) {
if (m_checkedPixmap.isNull()
|| m_checkedPixmap.size() / m_checkedPixmap.devicePixelRatio() != contentsRect().size())
m_checkedPixmap = cacheRendering(contentsRect().size(), true);
p.drawPixmap(contentsRect(), m_checkedPixmap);
} else {
if (m_uncheckedPixmap.isNull()
|| m_uncheckedPixmap.size() / m_uncheckedPixmap.devicePixelRatio()
!= contentsRect().size())
m_uncheckedPixmap = cacheRendering(contentsRect().size(), false);
p.drawPixmap(contentsRect(), m_uncheckedPixmap);
}
if (isDown()) {
p.setPen(Qt::NoPen);
p.setBrush(QColor(0, 0, 0, 20));
p.drawRoundedRect(rect().adjusted(1, 1, -1, -1), 1, 1);
}
if (hasFocus()) {
QStyleOptionFocusRect option;
option.initFrom(this);
style()->drawPrimitive(QStyle::PE_FrameFocusRect, &option, &p, this);
}
}
QPixmap DetailsButton::cacheRendering(const QSize& size, bool checked)
{
const qreal pixelRatio = devicePixelRatio();
QPixmap pixmap(size * pixelRatio);
pixmap.setDevicePixelRatio(pixelRatio);
pixmap.fill(Qt::transparent);
QPainter p(&pixmap);
p.setRenderHint(QPainter::Antialiasing, true);
p.translate(0.5, 0.5);
if (!FlatProjectsMode) {
QLinearGradient lg;
lg.setCoordinateMode(QGradient::ObjectBoundingMode);
lg.setFinalStop(0, 1);
if (!checked) {
lg.setColorAt(0, QColor(0, 0, 0, 10));
lg.setColorAt(1, QColor(0, 0, 0, 16));
} else {
lg.setColorAt(0, QColor(255, 255, 255, 0));
lg.setColorAt(1, QColor(255, 255, 255, 50));
}
p.setBrush(lg);
p.setPen(QColor(255, 255, 255, 140));
p.drawRoundedRect(1, 1, size.width() - 3, size.height() - 3, 1, 1);
p.setPen(QPen(QColor(0, 0, 0, 40)));
p.drawLine(0, 1, 0, size.height() - 2);
if (checked)
p.drawLine(1, size.height() - 1, size.width() - 1, size.height() - 1);
} else {
p.setPen(Qt::NoPen);
p.drawRoundedRect(0, 0, size.width(), size.height(), 1, 1);
}
p.setPen(palette().color(QPalette::Text));
QRect textRect = p.fontMetrics().boundingRect(text());
textRect.setWidth(textRect.width() + 15);
textRect.setHeight(textRect.height() + 4);
textRect.moveCenter(rect().center());
p.drawText(textRect, Qt::AlignLeft | Qt::AlignVCenter, text());
int arrowsize = 15;
QStyleOption arrowOpt;
arrowOpt.initFrom(this);
QPalette pal = arrowOpt.palette;
pal.setBrush(QPalette::All, QPalette::Text, QColor(0, 0, 0));
arrowOpt.rect =
QRect(size.width() - arrowsize - 6, height() / 2 - arrowsize / 2, arrowsize, arrowsize);
arrowOpt.palette = pal;
style()->drawPrimitive(checked ? QStyle::PE_IndicatorArrowUp : QStyle::PE_IndicatorArrowDown,
&arrowOpt, &p, this);
return pixmap;
}
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