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/* smplayer, GUI front-end for mplayer.
Copyright (C) 2006-2018 Ricardo Villalba <rvm@users.sourceforge.net>
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; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "autohidewidget.h"
#include <QTimer>
#include <QEvent>
#include <QVBoxLayout>
#include <QMouseEvent>
#include <QAction>
#include <QMenu>
#include <QDebug>
#if QT_VERSION >= 0x040600
#include <QPropertyAnimation>
#endif
#define HANDLE_TAP_EVENT
#ifdef HANDLE_TAP_EVENT
#include <QGestureEvent>
#endif
AutohideWidget::AutohideWidget(QWidget * parent)
: QWidget(parent)
, turned_on(false)
, auto_hide(false)
, use_animation(false)
, spacing(0)
, perc_width(100)
, activation_area(Anywhere)
, internal_widget(0)
, timer(0)
#if QT_VERSION >= 0x040600
, animation(0)
#endif
{
setBackgroundRole(QPalette::Window);
setAutoFillBackground(true);
setLayoutDirection(Qt::LeftToRight);
QWidget * widget_to_watch = parent;
widget_to_watch->installEventFilter(this);
installFilter(widget_to_watch);
timer = new QTimer(this);
connect(timer, SIGNAL(timeout()), this, SLOT(checkUnderMouse()));
timer->setInterval(3000);
QVBoxLayout *layout = new QVBoxLayout;
layout->setSpacing(0);
layout->setMargin(0);
setLayout(layout);
}
AutohideWidget::~AutohideWidget() {
#if QT_VERSION >= 0x040600
if (animation) delete animation;
#endif
}
void AutohideWidget::setInternalWidget(QWidget * w) {
//qDebug() << "AutohideWidget::setInternalWidget:" << w;
layout()->addWidget(w);
internal_widget = w;
}
void AutohideWidget::setHideDelay(int ms) {
timer->setInterval(ms);
}
int AutohideWidget::hideDelay() {
return timer->interval();
}
void AutohideWidget::installFilter(QObject *o) {
QObjectList children = o->children();
for (int n=0; n < children.count(); n++) {
if (children[n]->isWidgetType()) {
qDebug() << "AutohideWidget::installFilter: child name:" << children[n]->objectName();
QWidget *w = static_cast<QWidget *>(children[n]);
w->setMouseTracking(true);
w->installEventFilter(this);
installFilter(children[n]);
#ifdef HANDLE_TAP_EVENT
//w->grabGesture(Qt::TapGesture);
#endif
}
}
}
bool AutohideWidget::visiblePopups() {
//qDebug() << "AutohideWidget::visiblePopups: internal_widget:" << internal_widget;
if (!internal_widget) return false;
// Check if any of the menus in the internal widget is visible
QObjectList children = internal_widget->children();
foreach(QObject * child, children) {
if (child->isWidgetType()) {
//qDebug() << "AutohideWidget::visiblePopups:" << child << "child name:" << child->objectName();
QWidget *w = static_cast<QWidget *>(child);
QList<QAction *> actions = w->actions();
foreach(QAction * action, actions) {
//qDebug() << "AutohideWidget::visiblePopups: action:" << action;
QList<QWidget *> aw = action->associatedWidgets();
//qDebug() << "AutohideWidget::visiblePopups: aw:" << aw;
QMenu * menu = 0;
foreach(QWidget * widget, aw) {
//qDebug() << "AutohideWidget::visiblePopups: widget:" << widget;
if ((menu = qobject_cast<QMenu *>(widget))) {
//qDebug() << "AutohideWidget::visiblePopups: menu:" << menu << "visible:" << menu->isVisible();
if (menu->isVisible()) return true;
}
}
menu = action->menu();
if (menu) {
//qDebug() << "AutohideWidget::visiblePopups: menu:" << menu << "visible:" << menu->isVisible();
if (menu->isVisible()) return true;
}
}
}
}
return false;
}
void AutohideWidget::activate() {
turned_on = true;
timer->start();
}
void AutohideWidget::deactivate() {
turned_on = false;
timer->stop();
hide();
}
void AutohideWidget::show() {
qDebug() << "AutohideWidget::show";
resizeAndMove();
if (use_animation) {
showAnimated();
} else {
QWidget::show();
}
// Restart timer
if (timer->isActive()) timer->start();
}
void AutohideWidget::setAutoHide(bool b) {
auto_hide = b;
}
void AutohideWidget::checkUnderMouse() {
if (auto_hide) {
//qDebug("AutohideWidget::checkUnderMouse");
if (isVisible() && !underMouse() && !visiblePopups()) {
hide();
}
}
}
void AutohideWidget::resizeAndMove() {
QWidget * widget = parentWidget();
int w = widget->width() * perc_width / 100;
int h = height();
resize(w, h);
int x = (widget->width() - width() ) / 2;
int y = widget->height() - height() - spacing;
move(x, y);
}
bool AutohideWidget::eventFilter(QObject * obj, QEvent * event) {
if (turned_on) {
//qDebug() << "AutohideWidget::eventFilter: obj:" << obj << "type:" << event->type();
#ifdef HANDLE_TAP_EVENT
if (event->type() == QEvent::Gesture) {
qDebug() << "AutohideWidget::eventFilter: obj:" << obj << "gesture:" << event;
QGestureEvent * gesture_event = static_cast<QGestureEvent*>(event);
if (gesture_event->gesture(Qt::TapGesture)) {
qDebug() << "AutohideWidget::eventFilter: tap event detected";
if (!isVisible()) show(); //else hide();
event->setAccepted(true);
return true;
}
}
else
#endif
if (event->type() == QEvent::MouseMove) {
//qDebug() << "AutohideWidget::eventFilter: mouse move" << obj;
if (!isVisible()) {
if (activation_area == Anywhere) {
show();
} else {
QMouseEvent * mouse_event = dynamic_cast<QMouseEvent*>(event);
QWidget * parent = parentWidget();
QPoint p = parent->mapFromGlobal(mouse_event->globalPos());
//qDebug() << "AutohideWidget::eventFilter: y:" << p.y();
if (p.y() > (parent->height() - height() - spacing)) {
show();
}
}
}
}
else
if (event->type() == QEvent::MouseButtonRelease && obj == this) {
event->setAccepted(true);
return true;
}
}
return QWidget::eventFilter(obj, event);
}
void AutohideWidget::showAnimated() {
#if QT_VERSION >= 0x040600
if (!animation) {
animation = new QPropertyAnimation(this, "pos");
}
QPoint initial_position = QPoint(pos().x(), parentWidget()->size().height());
QPoint final_position = pos();
move(initial_position);
QWidget::show();
animation->setDuration(300);
animation->setEasingCurve(QEasingCurve::OutBounce);
animation->setEndValue(final_position);
animation->setStartValue(initial_position);
animation->start();
#else
QWidget::show();
#endif
}
#include "moc_autohidewidget.cpp"
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