152 lines
4.5 KiB
C++
152 lines
4.5 KiB
C++
/*
|
|
* Copyright 2009 Marco Martin <notmart@gmail.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU Library General Public License as
|
|
* published by the Free Software Foundation; either version 2, 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 Library General Public
|
|
* License along with this program; if not, write to the
|
|
* Free Software Foundation, Inc.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#include "focusindicator_p.h"
|
|
|
|
#include <QGraphicsSceneResizeEvent>
|
|
|
|
#include <plasma/theme.h>
|
|
#include <plasma/framesvg.h>
|
|
|
|
#include <plasma/animator.h>
|
|
|
|
namespace Plasma
|
|
{
|
|
|
|
FocusIndicator::FocusIndicator(QGraphicsWidget *parent, QString widget)
|
|
: QGraphicsWidget(parent),
|
|
m_parent(parent),
|
|
m_background(0),
|
|
m_prefix("hover")
|
|
{
|
|
setFlag(QGraphicsItem::ItemStacksBehindParent);
|
|
setAcceptsHoverEvents(true);
|
|
|
|
m_background = new Plasma::FrameSvg(this);
|
|
m_background->setImagePath(widget);
|
|
m_background->setElementPrefix("hover");
|
|
m_background->setCacheAllRenderedFrames(true);
|
|
|
|
m_fade = Animator::create(Animator::FadeAnimation, this);
|
|
m_fade->setTargetWidget(this);
|
|
m_fade->setProperty("startOpacity", 0.0);
|
|
m_fade->setProperty("targetOpacity", 1.0);
|
|
setOpacity(0);
|
|
|
|
parent->installEventFilter(this);
|
|
connect(Plasma::Theme::defaultTheme(), SIGNAL(themeChanged()), SLOT(syncGeometry()));
|
|
syncGeometry();
|
|
}
|
|
|
|
FocusIndicator::~FocusIndicator()
|
|
{
|
|
delete m_fade;
|
|
}
|
|
|
|
void FocusIndicator::setCustomGeometry(const QRectF &geometry)
|
|
{
|
|
m_customGeometry = geometry;
|
|
syncGeometry();
|
|
}
|
|
|
|
void FocusIndicator::setCustomPrefix(const QString &prefix)
|
|
{
|
|
m_customPrefix = prefix;
|
|
}
|
|
|
|
bool FocusIndicator::eventFilter(QObject *watched, QEvent *event)
|
|
{
|
|
if (static_cast<QGraphicsWidget *>(watched) != m_parent) {
|
|
return false;
|
|
}
|
|
|
|
if (!m_parent->hasFocus() && event->type() == QEvent::GraphicsSceneHoverEnter) {
|
|
m_background->setElementPrefix("hover");
|
|
m_prefix = m_customPrefix + "hover";
|
|
m_fade->setProperty("startOpacity", 0.0);
|
|
m_fade->setProperty("targetOpacity", 1.0);
|
|
syncGeometry();
|
|
m_fade->start();
|
|
} else if (!m_parent->hasFocus() && event->type() == QEvent::GraphicsSceneHoverLeave) {
|
|
m_fade->setProperty("startOpacity", 1.0);
|
|
m_fade->setProperty("targetOpacity", 0.0);
|
|
m_fade->start();
|
|
} else if (event->type() == QEvent::GraphicsSceneResize) {
|
|
syncGeometry();
|
|
} else if (event->type() == QEvent::FocusIn) {
|
|
m_background->setElementPrefix("focus");
|
|
m_prefix = m_customPrefix + "focus";
|
|
m_fade->setProperty("startOpacity", 0.0);
|
|
m_fade->setProperty("targetOpacity", 1.0);
|
|
syncGeometry();
|
|
m_fade->start();
|
|
} else if (!m_parent->isUnderMouse() && event->type() == QEvent::FocusOut) {
|
|
m_fade->setProperty("startOpacity", 1.0);
|
|
m_fade->setProperty("targetOpacity", 0.0);
|
|
m_fade->start();
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void FocusIndicator::resizeEvent(QGraphicsSceneResizeEvent *event)
|
|
{
|
|
m_background->setElementPrefix("hover");
|
|
m_background->resizeFrame(event->newSize());
|
|
m_background->setElementPrefix("focus");
|
|
m_background->resizeFrame(event->newSize());
|
|
}
|
|
|
|
void FocusIndicator::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
|
|
{
|
|
Q_UNUSED(option)
|
|
Q_UNUSED(widget)
|
|
|
|
if (m_background->hasElementPrefix(m_prefix)) {
|
|
m_background->paintFrame(painter);
|
|
} else {
|
|
m_background->paint(painter, QPoint(0,0), m_prefix);
|
|
}
|
|
}
|
|
|
|
void FocusIndicator::syncGeometry()
|
|
{
|
|
QRectF geom;
|
|
if (!m_customGeometry.isNull()) {
|
|
geom = m_customGeometry;
|
|
} else {
|
|
geom = m_parent->boundingRect();
|
|
}
|
|
|
|
if (m_background->hasElementPrefix(m_prefix)) {
|
|
qreal left, top, right, bottom;
|
|
m_background->getMargins(left, top, right, bottom);
|
|
setGeometry(QRectF(geom.topLeft() + QPointF(-left, -top), geom.size() + QSize(left+right, top+bottom)));
|
|
} else {
|
|
QRectF elementRect = m_background->elementRect(m_prefix);
|
|
elementRect.moveCenter(geom.center());
|
|
setGeometry(elementRect);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
#include <focusindicator_p.moc>
|
|
|