author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Mon, 19 Apr 2010 14:02:13 +0300 | |
changeset 0 | 16d8024aca5e |
child 5 | 627c4a0fd0e7 |
permissions | -rw-r--r-- |
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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 "hbiconanimator.h" |
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#include "hbiconanimator_p.h" |
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#include "hbiconanimation_p.h" |
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#include "hbicon_p.h" |
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#include "hbiconengine_p.h" |
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#include "hbnamespace.h" |
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#include "hbview.h" |
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#include "hbmainwindow.h" |
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#include <QObject> |
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#include <QGraphicsWidget> |
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#include <QPainter> |
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/*! |
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@stable |
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@hbcore |
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\class HbIconAnimator |
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\brief HbIconAnimator is the animation interface for animated icons. Class HbIconItem |
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uses it for built-in animation support. For more specific use cases, clients can also |
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create their own HbIconAnimator instance and use it for driving an icon animation. |
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If the icon is not animated, the animator does not do anything. |
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The animator provides signals for observing the start, stop and finish of the animation and the |
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animation progress. |
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*/ |
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/*! |
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\fn void HbIconAnimator::animationStarted() |
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This signal is emitted whenever the icon animation is started from the |
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beginning. By default an icon animation is started when the icon is painted |
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for the first time. This behaviour can be disabled with the flag |
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HbIcon::NoAutoStartAnimation. |
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Note that the signal is not emitted when restarting due to |
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looping. Also keep in mind that the animation will restart from the |
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beginning if the icon properties, e.g. the size are changed. In this |
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case the started signal will also be emitted again and this is not |
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an error, it is normal. |
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\sa startAnimation() |
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*/ |
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/*! |
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\fn void HbIconAnimator::animationStopped() |
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This signal is emitted whenever the icon animation is stopped (by calling |
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stopAnimation()) before the animation has finished. |
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\sa stopAnimation() |
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*/ |
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/*! |
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\fn void HbIconAnimator::animationProgressed() |
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This signal is emitted whenever the icon animation has progressed and the |
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icon should be repainted to the screen. |
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*/ |
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/*! |
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\fn void HbIconAnimator::animationFinished() |
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This signal is emitted whenever the icon animation is finished (and there was |
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no stopAnimation() call). This can be used e.g. to synchronize subsequent icon |
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animations. If looping is enabled then this signal is never emitted. |
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*/ |
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/*! |
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Creates an icon animator instance. |
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*/ |
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HbIconAnimator::HbIconAnimator() |
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: d(new HbIconAnimatorPrivate) |
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{ |
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} |
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/*! |
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Creates an icon animator instance and sets given graphics \a item in it. |
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105 |
*/ |
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HbIconAnimator::HbIconAnimator(QGraphicsItem *item) |
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: d(new HbIconAnimatorPrivate) |
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108 |
{ |
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setGraphicsItem(item); |
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} |
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111 |
|
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112 |
/*! |
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Destroys the icon animator instance. |
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*/ |
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HbIconAnimator::~HbIconAnimator() |
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{ |
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if (d && d->icon.d->engine) { |
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d->icon.d->engine->setAnimator(0); |
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} |
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delete d; |
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} |
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122 |
|
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123 |
/*! |
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Destroys the private instance. |
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*/ |
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HbIconAnimatorPrivate::~HbIconAnimatorPrivate() |
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127 |
{ |
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delete animation; |
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} |
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130 |
|
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131 |
/*! |
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Returns the icon that has been set to the animator. |
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The icon parameters can be changed and then updated in the animator |
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with method HbIconAnimator::setIcon(). |
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135 |
|
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\sa HbIconAnimator::setIcon() |
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*/ |
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HbIcon HbIconAnimator::icon() const |
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{ |
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return d->icon; |
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} |
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142 |
|
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143 |
/*! |
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Sets the \a icon to the animator. If the icon is not animated, the |
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animator draws it normally. |
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146 |
|
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\sa HbIconAnimator::icon() |
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*/ |
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void HbIconAnimator::setIcon(const HbIcon &icon) |
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{ |
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// Delete animation if such parameters have changed which cannot be updated |
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// in the animation dynamically or if the given icon is NULL. |
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bool needToRecreateAnimation = false; |
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154 |
|
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if (d->animation) { |
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// Mirroring change cannot be applied in FrameSet animation dynamically because |
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// it may have different frame icons for the mirrored version. |
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if (icon.mirroringMode() != d->icon.mirroringMode()) { |
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if (d->animation->type() == HbIconAnimation::FrameSet) { |
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needToRecreateAnimation = true; |
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} else { |
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// Update current mirroring in the animation |
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d->animation->setMirrored(icon.d->engine->isMirrored()); |
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} |
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} |
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else if ((static_cast<int>(icon.flags()) & HbIcon::ResolutionCorrected) != |
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(static_cast<int>(d->icon.flags()) & HbIcon::ResolutionCorrected) || |
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icon.isNull()) { |
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needToRecreateAnimation = true; |
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} |
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} |
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172 |
|
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if (needToRecreateAnimation) { |
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delete d->animation; |
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d->animation = 0; |
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} |
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177 |
|
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d->icon = icon; |
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179 |
|
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if (d->icon.d->engine) { |
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// The icon's private object could be detached here before setting the animator in its engine. |
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// Without doing that, the HbIcon instance given to this method also starts to paint the animation frames |
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// if the caller of this method tries to paint it. |
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// On the other hand that causes a performance hit, so not doing that unless this is causing some problems. |
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d->icon.d->engine->setAnimator(this); |
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} |
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} |
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188 |
|
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189 |
/*! |
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Sets the graphics item which is automatically updated whenever the icon animation has progressed. |
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191 |
This is a more light-weight way of handling icon animation updates than using the animationProgressed |
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192 |
signal but the user must make sure that the given graphics item is not destroyed before the HbIcon |
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instance owning this animator is destroyed. |
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*/ |
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void HbIconAnimator::setGraphicsItem(QGraphicsItem *item) |
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{ |
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if (item != d->item) { |
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d->item = item; |
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199 |
|
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// If there is animation already running, it may have resolved its owner view |
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// based on the previously set graphics item (see HbIconAnimationManagerPrivate::animPlaying) |
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// so in theory this graphics item might belong to other view, which needs to be updated in the animation. |
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// Clearing the view information in the animation here so it gets updated next time the animation is started. |
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if (d->animation && !d->view) { |
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d->animation->setView(0); |
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} |
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} |
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208 |
} |
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209 |
|
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/*! |
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Paints the animated icon. This is a convenience method and does the same as calling paint() to the |
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HbIcon instance returned by method HbIconAnimator::icon(). |
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*/ |
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void HbIconAnimator::paint( |
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QPainter *painter, |
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const QRectF &rect, |
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Qt::AspectRatioMode aspectRatioMode, |
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Qt::Alignment alignment, |
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QIcon::Mode mode, |
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QIcon::State state) const |
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{ |
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d->icon.paint(painter, rect, aspectRatioMode, alignment, mode, state); |
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} |
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|
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/*! |
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* Starts the icon animation if the icon is animated. Otherwise this method has no effect. |
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* If the animation is already running or finished, it is restarted from the beginning. |
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* \sa flag HbIcon::NoAutoStartAnimation |
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*/ |
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void HbIconAnimator::startAnimation() |
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{ |
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d->started = true; |
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if (d->animation) { |
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d->animation->start(); |
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} |
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} |
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/*! |
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* Stops the icon animation if the icon is animated. Otherwise this method has no effect. |
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* The icon shows the last frame of the animation. |
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*/ |
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void HbIconAnimator::stopAnimation() |
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{ |
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d->started = false; |
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if (d->animation) { |
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d->animation->stop(); |
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} |
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} |
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|
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/** |
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* Sets the \a view showing the animated icon that this animator instance is associated with. |
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* The animation is then paused automatically when the view is deactivated and resumed when it is activated. |
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* If the owner view is not set the animation does not care about view switches. |
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* |
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* \note Method HbIconAnimator::setGraphicsItem goes through the parent chain of the given graphics item |
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* and sets the owner view automatically if it finds a HbView instance in it. If that method is used, |
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* there is no need to call this method explicitly. |
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*/ |
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void HbIconAnimator::setOwnerView(HbView *view) |
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{ |
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if (d->view != view) { |
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d->view = view; |
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|
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// If there is existing animation object, update the owner view also in it. |
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if (d->animation) { |
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d->animation->setView(view); |
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} |
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} |
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} |
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|
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// End of File |