author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 19 Apr 2010 14:40:06 +0300 | |
changeset 0 | 89c329efa980 |
child 1 | e48454f237ca |
permissions | -rw-r--r-- |
0
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/* |
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* Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies). |
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* All rights reserved. |
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* This component and the accompanying materials are made available |
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* under the terms of "Eclipse Public License v1.0" |
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* which accompanies this distribution, and is available |
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* at the URL "http://www.eclipse.org/legal/epl-v10.html". |
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* |
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* Initial Contributors: |
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* Nokia Corporation - initial contribution. |
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* |
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* Contributors: |
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* |
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* Description: |
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* |
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*/ |
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|
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#include <QGesture> |
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#include <QPainter> |
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#include <hblabel.h> |
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#include "hgcoverflowcontainer.h" |
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#include "hgmediawallrenderer.h" |
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#include "hgwidgetitem.h" |
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#include "trace.h" |
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static const qreal KCameraMaxYAngle(20); |
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static const qreal KSpringVelocityToCameraYAngleFactor(2); |
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static const int KLabelMargin(4); |
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HgCoverflowContainer::HgCoverflowContainer( |
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QGraphicsItem* parent) : HgContainer(parent), |
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mTitleLabel(0), |
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mDescriptionLabel(0), |
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mTitlePosition(HgMediawall::PositionAboveImage), |
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mDescriptionPosition(HgMediawall::PositionNone), |
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mCenterIconTop(0), |
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mPrevPos(-1) |
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{ |
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mTitleLabel = new HbLabel(this); |
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mTitleLabel->setZValue(zValue()+1); |
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mTitleLabel->setAlignment(Qt::AlignCenter); |
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mTitleLabel->setVisible(false); |
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|
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mDescriptionLabel = new HbLabel(this); |
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mDescriptionLabel->setZValue(zValue()+1); |
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mDescriptionLabel->setAlignment(Qt::AlignCenter); |
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mDescriptionLabel->setVisible(false); |
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} |
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|
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HgCoverflowContainer::~HgCoverflowContainer() |
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{ |
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} |
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// events |
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void HgCoverflowContainer::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) |
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{ |
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HgContainer::paint(painter, option, widget); |
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} |
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void HgCoverflowContainer::resizeEvent(QGraphicsSceneResizeEvent *event) |
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{ |
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FUNC_LOG; |
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HbWidget::resizeEvent(event); |
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QSizeF s(size()); |
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qreal side = qMin(s.height()/1.8, s.width()/1.8); |
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INFO("Setting image size to:" << side << "," << side); |
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mRenderer->setImageSize(QSizeF(side, side)); |
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mCenterIconTop = (s.height()-side)/2; |
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positionLabels(); |
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} |
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// from HgContainer |
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HgMediaWallRenderer* HgCoverflowContainer::createRenderer() |
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{ |
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HgMediaWallRenderer* renderer = new HgMediaWallRenderer(this); |
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renderer->setImageSize(QSizeF(200, 200)); |
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renderer->enableCoverflowMode(true); |
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renderer->setRowCount(1, renderer->getImageSize(), false); |
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renderer->enableReflections(true); |
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renderer->setSpacing(QSizeF(1,1)); |
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renderer->setFrontCoverElevationFactor(0.5); |
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return renderer; |
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} |
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|
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qreal HgCoverflowContainer::getCameraDistance(qreal springVelocity) |
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{ |
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return qAbs(springVelocity * 0.01f); |
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} |
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qreal HgCoverflowContainer::getCameraRotationY(qreal springVelocity) |
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{ |
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return qBound(-KCameraMaxYAngle, springVelocity * KSpringVelocityToCameraYAngleFactor, KCameraMaxYAngle); |
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} |
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void HgCoverflowContainer::handleTapAction(const QPointF& pos, HgWidgetItem* hitItem, int hitItemIndex) |
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{ |
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Q_UNUSED(pos) |
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if (qAbs(qreal(hitItemIndex) - mSpring.pos().x()) < 0.01f) |
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{ |
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emit activated(hitItem->modelIndex()); |
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} |
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else |
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{ |
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mSpring.animateToPos(QPointF(hitItemIndex, 0)); |
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} |
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} |
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void HgCoverflowContainer::handleLongTapAction(const QPointF& pos, HgWidgetItem* hitItem, int hitItemIndex) |
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{ |
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Q_UNUSED(hitItemIndex) |
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|
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emit longPressed(hitItem->modelIndex(), pos); |
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} |
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|
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void HgCoverflowContainer::onScrollPositionChanged(qreal pos) |
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{ |
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HgContainer::onScrollPositionChanged(pos); |
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|
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if (mPrevPos != (int)pos) { |
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mPrevPos = (int)pos; |
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HgWidgetItem* item = itemByIndex((int)pos); |
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if (item && item->modelIndex() != mSelectionModel->currentIndex()) { |
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mSelectionModel->setCurrentIndex(item->modelIndex(), QItemSelectionModel::Current); |
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} |
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} |
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} |
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|
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void HgCoverflowContainer::handleCurrentChanged(const QModelIndex ¤t) |
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{ |
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FUNC_LOG; |
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|
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if (current.isValid()) { |
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updateLabels(current.row()); |
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} |
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} |
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|
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void HgCoverflowContainer::itemDataChanged(const int &firstIndex, const int &lastIndex) |
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{ |
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FUNC_LOG; |
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HANDLE_ERROR_NULL(mSelectionModel); // If model has been set, also is selection model |
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|
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HgContainer::itemDataChanged(firstIndex, lastIndex); |
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|
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if (mSelectionModel->currentIndex().isValid()) { |
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int current = mSelectionModel->currentIndex().row(); |
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if (firstIndex <= current && current <= lastIndex) { |
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updateLabels(current); |
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} |
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} |
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} |
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|
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void HgCoverflowContainer::setTitlePosition(HgMediawall::LabelPosition position) |
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{ |
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FUNC_LOG; |
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|
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if (mTitlePosition != position) { |
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mTitlePosition = position; |
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positionLabels(); |
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} |
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} |
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|
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HgMediawall::LabelPosition HgCoverflowContainer::titlePosition() const |
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{ |
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FUNC_LOG; |
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|
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return mTitlePosition; |
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} |
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|
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void HgCoverflowContainer::setDescriptionPosition(HgMediawall::LabelPosition position) |
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{ |
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FUNC_LOG; |
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|
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if (mDescriptionPosition != position) { |
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mDescriptionPosition = position; |
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positionLabels(); |
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} |
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} |
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|
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HgMediawall::LabelPosition HgCoverflowContainer::descriptionPosition() const |
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{ |
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FUNC_LOG; |
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|
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return mDescriptionPosition; |
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} |
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|
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void HgCoverflowContainer::setTitleFontSpec(const HbFontSpec &fontSpec) |
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{ |
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FUNC_LOG; |
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|
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if (!mTitleLabel) return; |
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if (mTitleLabel->fontSpec() != fontSpec) { |
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mTitleLabel->setFontSpec(fontSpec); |
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positionLabels(); |
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} |
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} |
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201 |
|
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HbFontSpec HgCoverflowContainer::titleFontSpec() const |
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{ |
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FUNC_LOG; |
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|
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if (!mTitleLabel) return HbFontSpec(); |
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return mTitleLabel->fontSpec(); |
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} |
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|
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void HgCoverflowContainer::setDescriptionFontSpec(const HbFontSpec &fontSpec) |
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{ |
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FUNC_LOG; |
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|
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if (!mDescriptionLabel) return; |
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if (mDescriptionLabel->fontSpec() != fontSpec) { |
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mDescriptionLabel->setFontSpec(fontSpec); |
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positionLabels(); |
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} |
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} |
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|
220 |
|
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HbFontSpec HgCoverflowContainer::descriptionFontSpec() const |
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{ |
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FUNC_LOG; |
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|
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if (!mDescriptionLabel) return HbFontSpec(); |
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return mDescriptionLabel->fontSpec(); |
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} |
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228 |
|
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void HgCoverflowContainer::positionLabels() |
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{ |
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FUNC_LOG; |
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HANDLE_ERROR_NULL(mTitleLabel); |
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HANDLE_ERROR_NULL(mDescriptionLabel); |
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HANDLE_ERROR_NULL(mSelectionModel); |
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|
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int height = size().height(); |
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int width = size().width(); |
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int titleHeight = QFontMetrics(mTitleLabel->effectiveFontSpec().font()).height(); |
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int descriptionHeight = QFontMetrics(mDescriptionLabel->effectiveFontSpec().font()).height(); |
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|
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if (mTitlePosition == HgMediawall::PositionAboveImage && |
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mDescriptionPosition == HgMediawall::PositionAboveImage) { |
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mTitleLabel->setGeometry(QRectF( |
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0, |
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qMax(KLabelMargin, mCenterIconTop-2*KLabelMargin-titleHeight-descriptionHeight), |
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width, titleHeight)); |
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mDescriptionLabel->setGeometry(QRectF( |
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248 |
0, |
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mTitleLabel->geometry().bottom()+KLabelMargin, |
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|
250 |
width, descriptionHeight)); |
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251 |
} |
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else if (mTitlePosition == HgMediawall::PositionBelowImage && |
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mDescriptionPosition == HgMediawall::PositionBelowImage) { |
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|
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mDescriptionLabel->setGeometry(QRectF( |
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|
255 |
0, |
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256 |
height-descriptionHeight-KLabelMargin, |
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|
257 |
width, descriptionHeight)); |
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258 |
mTitleLabel->setGeometry(QRectF( |
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|
259 |
0, |
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260 |
mDescriptionLabel->geometry().top()-titleHeight-KLabelMargin, |
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Revision: 201011
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parents:
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|
261 |
width, titleHeight)); |
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|
262 |
} |
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Revision: 201011
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|
263 |
else { |
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Revision: 201011
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parents:
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|
264 |
if (mTitlePosition == HgMediawall::PositionAboveImage) { |
89c329efa980
Revision: 201011
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parents:
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|
265 |
mTitleLabel->setGeometry(QRectF( |
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|
266 |
0, |
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|
267 |
qMax(KLabelMargin, mCenterIconTop-KLabelMargin-titleHeight), |
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Revision: 201011
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|
268 |
width, titleHeight)); |
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Revision: 201011
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|
269 |
} |
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Revision: 201011
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|
270 |
else if (mTitlePosition == HgMediawall::PositionBelowImage) { |
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Revision: 201011
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parents:
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|
271 |
mTitleLabel->setGeometry(QRectF( |
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Revision: 201011
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|
272 |
0, |
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Revision: 201011
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|
273 |
height-titleHeight-KLabelMargin, |
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Revision: 201011
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|
274 |
width, titleHeight)); |
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|
275 |
} |
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Revision: 201011
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|
276 |
|
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Revision: 201011
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|
277 |
if (mDescriptionPosition == HgMediawall::PositionAboveImage) { |
89c329efa980
Revision: 201011
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parents:
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|
278 |
mDescriptionLabel->setGeometry(QRectF( |
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Revision: 201011
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|
279 |
0, |
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Revision: 201011
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|
280 |
qMax(KLabelMargin, mCenterIconTop-KLabelMargin-descriptionHeight), |
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Revision: 201011
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|
281 |
width, descriptionHeight)); |
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Revision: 201011
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|
282 |
} |
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Revision: 201011
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parents:
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|
283 |
else if (mDescriptionPosition == HgMediawall::PositionBelowImage) { |
89c329efa980
Revision: 201011
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parents:
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|
284 |
mDescriptionLabel->setGeometry(QRectF( |
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Revision: 201011
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parents:
diff
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|
285 |
0, |
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Revision: 201011
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parents:
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|
286 |
height-descriptionHeight-KLabelMargin, |
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Revision: 201011
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parents:
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|
287 |
width, descriptionHeight)); |
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Revision: 201011
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|
288 |
} |
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|
289 |
} |
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Revision: 201011
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parents:
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|
290 |
|
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Revision: 201011
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|
291 |
mTitleLabel->setVisible(mTitlePosition != HgMediawall::PositionNone); |
89c329efa980
Revision: 201011
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parents:
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|
292 |
mDescriptionLabel->setVisible(mDescriptionPosition != HgMediawall::PositionNone); |
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|
293 |
|
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|
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INFO("Title geometry:" << mTitleLabel->geometry() << "visible:" << mTitleLabel->isVisible()); |
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|
295 |
INFO("Description geometry:" << mDescriptionLabel->geometry() << "visible:" << mDescriptionLabel->isVisible()); |
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|
296 |
|
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|
297 |
if (mSelectionModel->currentIndex().isValid()) { |
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Revision: 201011
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|
298 |
updateLabels(mSelectionModel->currentIndex().row()); |
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Revision: 201011
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|
299 |
} |
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|
300 |
} |
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|
301 |
|
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|
302 |
void HgCoverflowContainer::updateLabels(int itemIndex) |
89c329efa980
Revision: 201011
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|
303 |
{ |
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Revision: 201011
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|
304 |
FUNC_LOG; |
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|
305 |
HANDLE_ERROR_NULL(mTitleLabel); |
89c329efa980
Revision: 201011
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parents:
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|
306 |
HANDLE_ERROR_NULL(mDescriptionLabel); |
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|
307 |
|
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|
308 |
if (itemIndex >= 0 && itemIndex < mItems.count()) { |
89c329efa980
Revision: 201011
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|
309 |
mTitleLabel->setPlainText(mItems.at(itemIndex)->title()); |
89c329efa980
Revision: 201011
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|
310 |
mDescriptionLabel->setPlainText(mItems.at(itemIndex)->description()); |
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Revision: 201011
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|
311 |
} |
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|
312 |
} |
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Revision: 201011
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diff
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|
313 |
|
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Revision: 201011
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|
314 |
void HgCoverflowContainer::scrollToPosition(const QPointF& pos, bool animate) |
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Revision: 201011
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|
315 |
{ |
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Revision: 201011
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|
316 |
QPointF p = pos; |
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|
317 |
p.setX((int)pos.x()); |
89c329efa980
Revision: 201011
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parents:
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|
318 |
HgContainer::scrollToPosition(p,animate); |
89c329efa980
Revision: 201011
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parents:
diff
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|
319 |
} |