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/***************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (directui@nokia.com)
**
** This file is part of libmeegotouch.
**
** If you have questions regarding the use of this file, please contact
** Nokia at directui@nokia.com.
**
** This library is free software; you can redistribute it and/or
** modify it under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation
** and appearing in the file LICENSE.LGPL included in the packaging
** of this file.
**
****************************************************************************/
#include "mpositionindicatorview.h"
#include "mpositionindicatorview_p.h"
#include "qapplication.h"
#include <QString>
#include <QTimer>
#include <QStyleOptionGraphicsItem>
#include <QPropertyAnimation>
#include "mtheme.h"
#include "mviewcreator.h"
#include "mpositionindicator.h"
#include "mscalableimage.h"
MPositionIndicatorViewPrivate::MPositionIndicatorViewPrivate()
: controller(0),
hideTimer(new QTimer()),
visible(false)
{
}
MPositionIndicatorViewPrivate::~MPositionIndicatorViewPrivate()
{
delete this->hideTimer;
}
MPositionIndicatorView::MPositionIndicatorView(MPositionIndicator *controller) :
MWidgetView(* new MPositionIndicatorViewPrivate, controller)
{
Q_D(MPositionIndicatorView);
d->controller = controller;
connect(d->hideTimer, SIGNAL(timeout()), this, SLOT(hide()));
d->hideTimer->setSingleShot(true);
d->fadeAnimation = new QPropertyAnimation(controller, "opacity", this);
}
MPositionIndicatorView::~MPositionIndicatorView()
{
Q_D(MPositionIndicatorView);
d->controller = 0;
}
void MPositionIndicatorView::drawBackground(QPainter *painter, const QStyleOptionGraphicsItem *option) const
{
Q_UNUSED(painter);
Q_UNUSED(option);
}
void MPositionIndicatorView::drawContents(QPainter *painter, const QStyleOptionGraphicsItem *option) const
{
Q_UNUSED(option);
QSizeF vpSize = model()->viewportSize();
QRectF pRange = model()->range();
QPointF pPos = model()->position();
const MScalableImage *indicator = style()->indicatorImage();
const MScalableImage *rail = style()->backgroundImage();
if (pRange.height() > vpSize.height()) {
int indicatorPixmapSizeX = indicator->pixmap()->width();
int railPixmapSizeX = rail->pixmap()->width();
int indicatorHeight = qMax(style()->minIndicatorSize(), int((vpSize.height()/pRange.height())*size().height()));
int indicatorPositionY = (pPos.y()/pRange.height())*size().height();
if (indicatorPositionY + indicatorHeight > size().height()) {
indicatorHeight = size().height() - indicatorPositionY;
}
if (indicatorPositionY < 0) {
indicatorHeight += indicatorPositionY;
indicatorPositionY = 0;
}
int railPositionX = (qApp->layoutDirection() == Qt::RightToLeft ? 0 : size().width() - railPixmapSizeX);
int indicatorPositionX = (qApp->layoutDirection() == Qt::RightToLeft ? 0 : size().width() - indicatorPixmapSizeX);
rail->draw( railPositionX,
0,
railPixmapSizeX,
size().height(),
painter);
indicator->draw(indicatorPositionX,
indicatorPositionY,
indicatorPixmapSizeX,
indicatorHeight,
painter);
}
if (pRange.width() > vpSize.width()) {
int indicatorPixmapSizeY = indicator->pixmap()->height();
int railPixmapSizeY = rail->pixmap()->height();
int indicatorWidth = qMax(style()->minIndicatorSize(), int((vpSize.width()/pRange.width())*size().width()));
int indicatorPositionX = (pPos.x()/pRange.width())*size().width();
if (indicatorPositionX + indicatorWidth > size().width()) {
indicatorWidth = size().width() - indicatorPositionX;
}
if (indicatorPositionX < 0) {
indicatorWidth += indicatorPositionX;
indicatorPositionX = 0;
}
rail->draw( 0,
size().height() - railPixmapSizeY,
size().width(),
railPixmapSizeY,
painter);
indicator->draw(indicatorPositionX,
size().height() - indicatorPixmapSizeY,
indicatorWidth,
indicatorPixmapSizeY,
painter);
}
}
void MPositionIndicatorView::updateData(const QList<const char *>& modifications)
{
MWidgetView::updateData(modifications);
resetHideTimer();
update();
}
void MPositionIndicatorView::setupModel()
{
MWidgetView::setupModel();
resetHideTimer();
update();
}
void MPositionIndicatorView::resizeEvent(QGraphicsSceneResizeEvent *event)
{
MWidgetView::resizeEvent(event);
update();
}
void MPositionIndicatorView::changeEvent(QEvent *event)
{
Q_D(MPositionIndicatorView);
MWidgetView::changeEvent(event);
if (event->type() == QEvent::EnabledChange) {
if (d->controller->isEnabled()) {
d->controller->setVisible(true);
} else {
d->controller->setVisible(false);
}
}
}
void MPositionIndicatorView::hide()
{
Q_D(MPositionIndicatorView);
d->visible = false;
d->fadeAnimation->stop();
d->fadeAnimation->setEndValue(0.0f);
d->fadeAnimation->start();
update();
}
void MPositionIndicatorView::resetHideTimer()
{
Q_D(MPositionIndicatorView);
if (!d->visible) {
d->fadeAnimation->stop();
d->fadeAnimation->setEndValue(1.0f);
d->fadeAnimation->start();
d->visible = true;
}
d->hideTimer->stop();
d->hideTimer->start(style()->hideTimeout());
}
M_REGISTER_VIEW_NEW(MPositionIndicatorView, MPositionIndicator)
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