implement Tabs
This commit is contained in:
parent
cf1d873ec3
commit
754d01b3c2
85
tabs.cpp
85
tabs.cpp
|
@ -1 +1,86 @@
|
|||
#include <QHBoxLayout>
|
||||
#include <QPainter>
|
||||
#include <QPropertyAnimation>
|
||||
#include "tabs.h"
|
||||
#include "tab.h"
|
||||
|
||||
Tabs::Tabs(QWidget *parent)
|
||||
: QWidget(parent),
|
||||
_tabLayout(new QHBoxLayout),
|
||||
_animation(new QPropertyAnimation(this)),
|
||||
_tab(0),
|
||||
_tween(1)
|
||||
{
|
||||
_animation->setPropertyName("tween");
|
||||
_animation->setEasingCurve(QEasingCurve::OutCirc);
|
||||
_animation->setTargetObject(this);
|
||||
_animation->setDuration(700);
|
||||
|
||||
setLayout(_tabLayout);
|
||||
_tabLayout->setSpacing(0);
|
||||
_tabLayout->setMargin(0);
|
||||
}
|
||||
|
||||
Tabs::~Tabs()
|
||||
{
|
||||
}
|
||||
|
||||
void Tabs::addTab(Tab *tab)
|
||||
{
|
||||
_tabLayout->addWidget(tab);
|
||||
connect(tab, SIGNAL(clicked()), this, SLOT(switchActiveTab()));
|
||||
}
|
||||
|
||||
void Tabs::paintEvent(QPaintEvent *event)
|
||||
{
|
||||
Q_UNUSED(event)
|
||||
|
||||
QPainter painter(this);
|
||||
painter.fillRect(_inkBarGeometry, Qt::black);
|
||||
}
|
||||
|
||||
void Tabs::switchActiveTab()
|
||||
{
|
||||
Tab *tab = static_cast<Tab *>(sender());
|
||||
if (tab) {
|
||||
_previousGeometry = _inkBarGeometry;
|
||||
_tab = _tabLayout->indexOf(tab);
|
||||
_inkBarGeometry = _tabLayout->itemAt(_tab)->geometry();
|
||||
_animation->stop();
|
||||
_animation->setStartValue(0);
|
||||
_animation->setEndValue(1);
|
||||
_animation->start();
|
||||
emit currentChanged(_tab);
|
||||
}
|
||||
}
|
||||
|
||||
void Tabs::moveEvent(QMoveEvent *event)
|
||||
{
|
||||
Q_UNUSED(event)
|
||||
|
||||
updateInkBar();
|
||||
}
|
||||
|
||||
void Tabs::resizeEvent(QResizeEvent *event)
|
||||
{
|
||||
Q_UNUSED(event)
|
||||
|
||||
updateInkBar();
|
||||
}
|
||||
|
||||
void Tabs::updateInkBar()
|
||||
{
|
||||
QLayoutItem *item = _tabLayout->itemAt(_tab);
|
||||
if (item) {
|
||||
const QRect &r = item->geometry();
|
||||
const qreal s = 1-_tween;
|
||||
if (QAbstractAnimation::Running != _animation->state()) {
|
||||
_inkBarGeometry = QRect(r.left(), r.bottom()-3, r.width(), 4);
|
||||
} else {
|
||||
const qreal left = _previousGeometry.left()*s + r.left()*_tween;
|
||||
const qreal width = _previousGeometry.width()*s + r.width()*_tween;
|
||||
_inkBarGeometry = QRect(left, r.bottom()-3, width, 4);
|
||||
}
|
||||
update();
|
||||
}
|
||||
}
|
||||
|
|
47
tabs.h
47
tabs.h
|
@ -0,0 +1,47 @@
|
|||
#ifndef TABS_H
|
||||
#define TABS_H
|
||||
|
||||
#include <QWidget>
|
||||
|
||||
class QHBoxLayout;
|
||||
class QPropertyAnimation;
|
||||
class Tab;
|
||||
|
||||
class Tabs : public QWidget
|
||||
{
|
||||
Q_OBJECT
|
||||
|
||||
Q_PROPERTY(qreal tween WRITE setTween READ tween)
|
||||
|
||||
public:
|
||||
explicit Tabs(QWidget *parent = 0);
|
||||
~Tabs();
|
||||
|
||||
inline void setTween(qreal tween) { _tween = tween; updateInkBar(); }
|
||||
inline qreal tween() const { return _tween; }
|
||||
|
||||
void addTab(Tab *tab);
|
||||
|
||||
protected:
|
||||
void paintEvent(QPaintEvent *event) Q_DECL_OVERRIDE;
|
||||
void moveEvent(QMoveEvent *event) Q_DECL_OVERRIDE;
|
||||
void resizeEvent(QResizeEvent *event) Q_DECL_OVERRIDE;
|
||||
|
||||
protected slots:
|
||||
void switchActiveTab();
|
||||
|
||||
signals:
|
||||
void currentChanged(int);
|
||||
|
||||
private:
|
||||
void updateInkBar();
|
||||
|
||||
QHBoxLayout *const _tabLayout;
|
||||
QPropertyAnimation *const _animation;
|
||||
QRect _inkBarGeometry;
|
||||
QRect _previousGeometry;
|
||||
int _tab;
|
||||
qreal _tween;
|
||||
};
|
||||
|
||||
#endif // TABS_H
|
Loading…
Reference in New Issue