src/hbcore/primitives/hbslidertrackitem.cpp
author hgs
Mon, 18 Oct 2010 18:23:13 +0300
changeset 34 ed14f46c0e55
parent 7 923ff622b8b9
permissions -rw-r--r--
201041
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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/****************************************************************************
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**
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** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (developer.feedback@nokia.com)
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**
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** This file is part of the HbCore module of the UI Extensions for Mobile.
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**
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this file.
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** Please review the following information to ensure the GNU Lesser General
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** Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights.  These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** If you have questions regarding the use of this file, please contact
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** Nokia at developer.feedback@nokia.com.
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**
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****************************************************************************/
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#include "hbslidertrackitem_p.h"
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#include "hbframedrawer.h"
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#include <QPainter>
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#include <QWidget>
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HbSliderTrackItem::HbSliderTrackItem(QGraphicsItem* parent)
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            :HbFrameItem(parent)
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{
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    minimum = 0;
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    maximum = 0;
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    value = 0;
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    maskWidth = 0;
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    trackSpan = 0;
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    setMask   = true;
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    handleRect = QRectF();
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}
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HbSliderTrackItem::HbSliderTrackItem(HbFrameDrawer *drawer, QGraphicsItem *parent)
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    :HbFrameItem(drawer,parent)
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{
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    minimum = 0;
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    maximum = 0;
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    value = 0;
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    maskWidth = 0;
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    trackSpan = 0;
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    setMask   = true;
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    handleRect = QRectF();
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}
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void HbSliderTrackItem::setMinimum(int min)
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{
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    if ( minimum != min ) {
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        minimum = min;
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        setMask = true;
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    }
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}
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void HbSliderTrackItem::setMaximum(int max )
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{
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    if ( maximum != max ) {
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        maximum = max;
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        setMask = true;
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    }
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}
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void HbSliderTrackItem::setValue(int val )
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{
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    if ( value != val ) {
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        value = val;
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        setMask = true;
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    }
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}
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void HbSliderTrackItem::setInverted(bool inv)
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{
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    if ( inverted != inv ) {
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        inverted = inv;
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        setMask = true;
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    }
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}
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void HbSliderTrackItem::setMaskWidth(qreal width)
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{
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    if ( maskWidth != width ) {
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        maskWidth = width;
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        setMask = true;
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    }
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}
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void HbSliderTrackItem::setOrientation(Qt::Orientation orientation)
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{
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    if ( mOrientation != orientation ) {
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        mOrientation = orientation;
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        setMask = true;
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    }
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}
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void HbSliderTrackItem::setSpan( qreal span )
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{
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    if ( trackSpan != span ) {
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        trackSpan = span;
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        setMask = true;
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    }
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}
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void HbSliderTrackItem::setHandleRect( QRectF sliderHandleRect)
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{
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    handleRect=sliderHandleRect;
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}
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void HbSliderTrackItem::paint(QPainter * painter, const QStyleOptionGraphicsItem * option, QWidget * widget)
0
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{
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    QSize size = boundingRect().size().toSize();
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    if (setMask) {
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        QRectF maskRect;
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        if (maximum != minimum) {
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            if (maskWidth == 0) {
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                if (mOrientation == Qt::Horizontal) {
0
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                    qreal left = (qreal)boundingRect().topLeft().x();
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                    if (inverted) {
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                        left = (qreal)trackSpan * ((maximum - value) / (qreal)(maximum - minimum)) + handleRect.width()/2;
0
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                    }
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                    if (layoutDirection() == Qt::RightToLeft) {
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                        maskRect = QRectF(
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                                       left,
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                                       (qreal)boundingRect().topLeft().y(),
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                                       (qreal)trackSpan * ((value -  minimum) / (qreal)(maximum - minimum)) + handleRect.width()/2,
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                                       (qreal)boundingRect().height());
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                    } else {
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                        maskRect = QRectF(
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                                       left,
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                                       (qreal)boundingRect().topLeft().y(),
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                                       (qreal)trackSpan * ((value -  minimum) / (qreal)(maximum - minimum))+handleRect.width()/2,
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                                       (qreal)boundingRect().height());
0
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                    }
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                } else {
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                    qreal start = boundingRect().bottom() - (qreal)trackSpan * ((value -  minimum) / (qreal)(maximum - minimum))-handleRect.height()/2;
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                    qreal end = boundingRect().bottom();
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1
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                    if (inverted) {
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                        start = boundingRect().top();
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                        end = start + (qreal)trackSpan * ((value -  minimum) / (qreal)(maximum - minimum))+handleRect.height()/2;
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                    }
1
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                    maskRect = QRectF(
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                                   (qreal)boundingRect().topLeft().x(),
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                                   start,
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                                   (qreal)boundingRect().width(),
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                                   end);
0
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                }
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            }
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        }
7
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//        QPainterPath rectPath;
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//        rectPath.addRect(maskRect);
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//        frameDrawer().setClipPath(rectPath);
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//        setMask = false;
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        QPixmap pixmap(boundingRect().size().toSize());
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        pixmap.fill(Qt::white);
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        QPainter painter1;
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        painter1.begin(&pixmap);
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        painter1.setBrush(QBrush(Qt::black));
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        painter1.drawRect(maskRect);
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        painter1.end();
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        frameDrawer().setMask(pixmap);
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0
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    }
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1
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    HbFrameItem::paint(painter, option, widget);
0
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}
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 /*!
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    \reimp
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 */
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void HbSliderTrackItem::changeEvent(QEvent *event)
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{
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    HbFrameItem::changeEvent( event );   
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    if ( event->type() == QEvent::LayoutDirectionChange ) {
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        setMask = true;
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    }
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}
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