author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 04 Oct 2010 00:07:25 +0300 | |
changeset 96 | 458d8c8d9580 |
parent 77 | 4b195f3bea29 |
child 101 | ba1b7e218624 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2009 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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#include <QGraphicsLinearLayout> |
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#include <QParallelAnimationGroup> |
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#include <QPropertyAnimation> |
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#include <QGraphicsDropShadowEffect> |
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#include <QGraphicsSceneResizeEvent> |
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#include <QGesture> |
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#include <QGraphicsScene> |
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#include <HbInstantFeedback> |
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#include <HbTouchArea> |
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#include "hswidgethostvisual.h" |
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#include "hswidgethost.h" |
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#include "hsscene.h" |
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#include "hsconfiguration.h" |
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#include "hswidgettoucharea.h" |
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/*! |
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\class HsWidgetHostVisual |
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\ingroup group_hsdomainmodel |
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\brief Each widget is controlled by the home screen framework through a widget host. |
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*/ |
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/*! |
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Constructs a new widget host with given \a databaseId and |
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\a parent item. |
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*/ |
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HsWidgetHostVisual::HsWidgetHostVisual(QGraphicsItem *parent) |
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: HbWidget(parent),mWidget(0) |
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{ |
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setFlag(QGraphicsItem::ItemClipsChildrenToShape); |
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setFlag(QGraphicsItem::ItemHasNoContents); |
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grabGesture(Qt::TapGesture); |
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grabGesture(Qt::TapAndHoldGesture); |
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grabGesture(Qt::PanGesture); |
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grabGesture(Qt::PinchGesture); |
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grabGesture(Qt::SwipeGesture); |
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grabGesture(Qt::CustomGesture); |
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setupTouchArea(); |
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setupEffects(); |
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setMinimumSize(HSCONFIGURATION_GET(minimumWidgetSizeInPixels)); |
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setMaximumSize(HSCONFIGURATION_GET(maximumWidgetSizeInPixels)); |
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} |
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/*! |
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Destructor. |
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*/ |
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HsWidgetHostVisual::~HsWidgetHostVisual() |
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{ |
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} |
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/*! |
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Reimplemented from QGraphicsItem. Returns the shape of the |
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this widget host. The shape is computed based on the contained |
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widget. |
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*/ |
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QPainterPath HsWidgetHostVisual::shape() const |
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{ |
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QPainterPath path; |
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if (mWidget) { |
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QRectF visualRect = rect(); |
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path = mWidget->shape(); |
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QRectF widgetRect(path.boundingRect()); |
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if (widgetRect.width() > visualRect.width() |
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|| widgetRect.height() > visualRect.height()) { |
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QPainterPath newPath; |
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newPath.addRect(visualRect); |
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path = path.intersected(newPath); |
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} else if ( widgetRect.isEmpty() ) { |
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path.addRect(visualRect); |
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} |
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} |
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return path; |
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} |
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void HsWidgetHostVisual::setWidget(QObject *widget) |
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{ |
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mWidget = qobject_cast<QGraphicsWidget *>(widget); |
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106 |
if (mWidget) { |
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mWidget->installEventFilter(this); |
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108 |
mWidget->setParentItem(this); |
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setNewSize(mWidget->size()); |
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110 |
} |
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111 |
} |
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112 |
|
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void HsWidgetHostVisual::setVisualModel(HsWidgetHost *model) |
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114 |
{ |
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mVisualModel = model; |
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} |
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HsWidgetHost *HsWidgetHostVisual::visualModel() const |
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118 |
{ |
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return mVisualModel; |
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120 |
} |
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121 |
/*! |
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122 |
Starts the drag effect. |
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123 |
*/ |
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void HsWidgetHostVisual::startDragEffect() |
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125 |
{ |
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126 |
/* TODO: Uncomment after the Qt bug has been fixed. |
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QGraphicsDropShadowEffect *effect = |
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static_cast<QGraphicsDropShadowEffect *>(graphicsEffect()); |
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129 |
*/ |
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HbInstantFeedback::play(HbFeedback::ItemPick); |
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131 |
|
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setTransformOriginPoint(rect().center()); |
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133 |
|
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QParallelAnimationGroup *animationGroup = new QParallelAnimationGroup(); |
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135 |
|
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QPropertyAnimation *animation = new QPropertyAnimation(this, "scale"); |
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animation->setDuration(HSCONFIGURATION_GET(widgetDragEffectDuration)); |
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138 |
animation->setEndValue(1.1); |
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animationGroup->addAnimation(animation); |
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140 |
|
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141 |
/* TODO: Uncomment after the Qt bug has been fixed. |
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142 |
animation = new QPropertyAnimation(effect, "offset"); |
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animation->setDuration(200); |
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animation->setEndValue(QPointF(8 ,8)); |
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animationGroup->addAnimation(animation); |
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146 |
*/ |
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147 |
|
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animationGroup->start(QAbstractAnimation::DeleteWhenStopped); |
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149 |
} |
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150 |
|
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151 |
/*! |
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152 |
Starts the drop effect. |
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153 |
*/ |
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154 |
void HsWidgetHostVisual::startDropEffect() |
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155 |
{ |
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156 |
/* TODO: Uncomment after the Qt bug has been fixed. |
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157 |
QGraphicsDropShadowEffect *effect = |
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static_cast<QGraphicsDropShadowEffect *>(graphicsEffect()); |
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159 |
*/ |
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HbInstantFeedback::play(HbFeedback::ItemDrop); |
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161 |
|
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QParallelAnimationGroup *animationGroup = new QParallelAnimationGroup; |
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163 |
|
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QPropertyAnimation *animation = new QPropertyAnimation(this, "scale"); |
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animation->setDuration(HSCONFIGURATION_GET(widgetDropEffectDuration)); |
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166 |
animation->setEndValue(1); |
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167 |
animationGroup->addAnimation(animation); |
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|
168 |
|
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169 |
/* TODO: Uncomment after the Qt bug has been fixed. |
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animation = new QPropertyAnimation(effect, "offset"); |
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171 |
animation->setDuration(200); |
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172 |
animation->setEndValue(QPointF(3, 3)); |
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173 |
animationGroup->addAnimation(animation); |
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174 |
*/ |
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|
175 |
|
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176 |
animationGroup->start(QAbstractAnimation::DeleteWhenStopped); |
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177 |
} |
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178 |
/*! |
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179 |
\fn HsWidgetHost::resized() |
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180 |
Notifies the home screen framework that this widget |
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181 |
host has resized itself. |
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182 |
*/ |
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183 |
|
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184 |
/*! |
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185 |
Reimplemented from QObject for monitoring changes in |
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186 |
contained widget's size. |
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187 |
*/ |
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188 |
bool HsWidgetHostVisual::eventFilter(QObject *watched, QEvent *event) |
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189 |
{ |
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if (event->type() == QEvent::GraphicsSceneResize ) { |
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191 |
QGraphicsSceneResizeEvent *resizeEvent = |
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static_cast<QGraphicsSceneResizeEvent *>(event); |
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setNewSize(resizeEvent->newSize()); |
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emit resized(); |
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195 |
} |
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return HbWidget::eventFilter(watched, event); |
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197 |
} |
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198 |
|
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199 |
/*! |
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200 |
Reimplemented from HbWidget for pan gesture handling. |
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201 |
*/ |
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202 |
void HsWidgetHostVisual::gestureEvent(QGestureEvent *event) |
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203 |
{ |
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HsScene *scene = HsScene::instance(); |
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QGesture *gesture = event->gesture(Qt::PanGesture); |
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if (gesture) { |
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207 |
switch (gesture->state()) { |
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208 |
case Qt::GestureStarted: |
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grabMouse(); |
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emit scene->pagePanStarted(event); |
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break; |
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case Qt::GestureUpdated: |
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emit scene->pagePanUpdated(event); |
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break; |
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case Qt::GestureFinished: |
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case Qt::GestureCanceled: |
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ungrabMouse(); |
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emit scene->pagePanFinished(event); |
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break; |
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default: |
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break; |
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} |
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} |
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} |
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|
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/*! |
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\fn HsWidgetHostVisual::mousePressEvent(QGraphicsSceneMouseEvent *) |
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Reimplemented from QGraphicsItem for eating all mouse presses. |
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*/ |
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|
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/*! |
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Configures the touch are for this widget host. |
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*/ |
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void HsWidgetHostVisual::setupTouchArea() |
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{ |
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mTouchArea = new HsWidgetTouchArea(this); |
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mTouchArea->setZValue(1); |
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} |
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|
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/*! |
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Configures the effects for this widget host. |
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*/ |
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void HsWidgetHostVisual::setupEffects() |
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{ |
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/* TODO: Uncomment after the Qt bug has been fixed. |
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QGraphicsDropShadowEffect *effect = |
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new QGraphicsDropShadowEffect(this); |
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effect->setColor(QColor(0, 0, 0, 150)); |
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effect->setBlurRadius(5); |
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effect->setOffset(3); |
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setGraphicsEffect(effect); |
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*/ |
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} |
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|
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|
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/*! |
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Resizes this widget host to the given \a size. |
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*/ |
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void HsWidgetHostVisual::setNewSize(const QSizeF &size) |
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{ |
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mTouchArea->resize(size); |
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resize(size); |
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setPreferredSize(size); |
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} |
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265 |