ArchitectureColoredPainting/qt-material-widgets/components/qtmaterialtabs_internal.cpp

179 lines
4.0 KiB
C++

#include "qtmaterialtabs_internal.h"
#include <QPainter>
#include <QPropertyAnimation>
#include <QtWidgets/QLayout>
#include <QtWidgets/QLayoutItem>
#include <QEvent>
#include "qtmaterialtabs.h"
#include <QDebug>
/*!
* \class QtMaterialTabsInkBar
* \internal
*/
QtMaterialTabsInkBar::QtMaterialTabsInkBar(QtMaterialTabs *parent)
: QtMaterialOverlayWidget(parent),
m_tabs(parent),
m_animation(new QPropertyAnimation(parent)),
m_tween(0)
{
Q_ASSERT(parent);
m_animation->setPropertyName("tweenValue");
m_animation->setEasingCurve(QEasingCurve::OutCirc);
m_animation->setTargetObject(this);
m_animation->setDuration(700);
m_tabs->installEventFilter(this);
setAttribute(Qt::WA_TransparentForMouseEvents);
setAttribute(Qt::WA_NoSystemBackground);
}
QtMaterialTabsInkBar::~QtMaterialTabsInkBar()
{
}
void QtMaterialTabsInkBar::refreshGeometry()
{
QLayoutItem *item = m_tabs->layout()->itemAt(m_tabs->currentIndex());
if (item)
{
const QRect r(item->geometry());
const qreal s = 1-m_tween;
if (QAbstractAnimation::Running != m_animation->state()) {
m_geometry = QRect(r.left(), r.bottom()-1, r.width(), 2);
} else {
const qreal left = m_previousGeometry.left()*s + r.left()*m_tween;
const qreal width = m_previousGeometry.width()*s + r.width()*m_tween;
m_geometry = QRect(left, r.bottom()-1, width, 2);
}
m_tabs->update();
}
}
void QtMaterialTabsInkBar::animate()
{
raise();
m_previousGeometry = m_geometry;
m_animation->stop();
m_animation->setStartValue(0);
m_animation->setEndValue(1);
m_animation->start();
}
bool QtMaterialTabsInkBar::eventFilter(QObject *obj, QEvent *event)
{
switch (event->type())
{
case QEvent::Move:
case QEvent::Resize:
{
refreshGeometry();
break;
}
default:
break;
}
return QtMaterialOverlayWidget::eventFilter(obj, event);
}
void QtMaterialTabsInkBar::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event)
QPainter painter(this);
painter.setOpacity(1);
painter.fillRect(m_geometry, m_tabs->inkColor());
}
/*!
* \class QtMaterialTab
* \internal
*/
QtMaterialTab::QtMaterialTab(QtMaterialTabs *parent)
: QtMaterialFlatButton(parent),
m_tabs(parent),
m_active(false)
{
Q_ASSERT(parent);
setMinimumHeight(30);
QFont f(font());
f.setStyleName("Normal");
setFont(f);
setCornerRadius(0);
setRole(Material::Primary);
setBackgroundMode(Qt::OpaqueMode);
setBaseOpacity(0.25);
connect(this, SIGNAL(clicked(bool)), this, SLOT(activateTab()));
}
QtMaterialTab::~QtMaterialTab()
{
}
QSize QtMaterialTab::sizeHint() const
{
if (icon().isNull()) {
return QtMaterialFlatButton::sizeHint();
} else {
return QSize(40, iconSize().height()+46);
}
}
void QtMaterialTab::activateTab()
{
m_tabs->setCurrentTab(this);
}
void QtMaterialTab::paintForeground(QPainter *painter)
{
painter->setPen(foregroundColor());
if (!icon().isNull()) {
painter->translate(0, 12);
}
QSize textSize(fontMetrics().size(Qt::TextSingleLine, text()));
QSize base(size()-textSize);
QRect textGeometry(QPoint(base.width(), base.height())/2, textSize);
painter->drawText(textGeometry, Qt::AlignCenter, text());
if (!icon().isNull())
{
const QSize &size = iconSize();
QRect iconRect(QPoint((width()-size.width())/2, 0), size);
QPixmap pixmap = icon().pixmap(iconSize());
QPainter icon(&pixmap);
icon.setCompositionMode(QPainter::CompositionMode_SourceIn);
icon.fillRect(pixmap.rect(), painter->pen().color());
painter->drawPixmap(iconRect, pixmap);
}
if (!m_active)
{
if (!icon().isNull()) {
painter->translate(0, -12);
}
QBrush overlay;
overlay.setStyle(Qt::SolidPattern);
overlay.setColor(backgroundColor());
painter->setOpacity(0.36);
painter->fillRect(rect(), overlay);
}
}