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Qt 5.2.1 Reference Documentation</li>
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<h3><a name="toc">Contents</a></h3>
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<li class="level1"><a href="#properties">Properties</a></li>
<li class="level1"><a href="#details">Detailed Description</a></li>
<li class="level2"><a href="#example">Example</a></li>
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<h1 class="title">ImageModel</h1>
<span class="subtitle"></span>
<!-- $$$ImageModel-brief -->
<p>The ImageModel type provides a model of place images. <a href="#details">More...</a></p>
<!-- @@@ImageModel -->
<table class="alignedsummary">
<tr><td class="memItemLeft rightAlign topAlign"> Import Statement:</td><td class="memItemRight bottomAlign"> </b><tt>import QtLocation 5.0</tt></td></tr><tr><td class="memItemLeft rightAlign topAlign"> Since:</td><td class="memItemRight bottomAlign"> Qt Location 5.0</td></tr></table><ul>
<li><a href="qml-qtlocation-imagemodel-members.html">List of all members, including inherited members</a></li>
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<a name="properties"></a>
<h2>Properties</h2>
<ul>
<li class="fn"><b><b><a href="qml-qtlocation-imagemodel.html#batchSize-prop">batchSize</a></b></b> : int</li>
<li class="fn"><b><b><a href="qml-qtlocation-imagemodel.html#place-prop">place</a></b></b> : Place</li>
<li class="fn"><b><b><a href="qml-qtlocation-imagemodel.html#totalCount-prop">totalCount</a></b></b> : int</li>
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<!-- $$$ImageModel-description -->
<a name="details"></a>
<h2>Detailed Description</h2>
<p>The ImageModel is a read-only model used to fetch images related to a <a href="qml-qtlocation-place.html">Place</a>. Binding a <a href="qml-qtlocation-place.html">Place</a> via <a href="qml-qtlocation-imagemodel.html#place-prop">ImageModel::place</a> initiates an initial fetch of images. The model performs fetches incrementally and is intended to be used in conjunction with a View such as a ListView. When the View reaches the last of the images currently in the model, a fetch is performed to retrieve more if they are available. The View is automatically updated as the images are received. The number of images which are fetched at a time is specified by the <a href="qml-qtlocation-imagemodel.html#batchSize-prop">batchSize</a> property. The total number of images available can be accessed via the <a href="qml-qtlocation-imagemodel.html#totalCount-prop">totalCount</a> property.</p>
<p>The model returns data for the following roles:</p>
<table class="generic">
<thead><tr class="qt-style"><th >Role</th><th >Type</th><th >Description</th></tr></thead>
<tr valign="top" class="odd"><td >url</td><td >url</td><td >The URL of the image.</td></tr>
<tr valign="top" class="even"><td >imageId</td><td >string</td><td >The identifier of the image.</td></tr>
<tr valign="top" class="odd"><td >mimeType</td><td >string</td><td >The MIME type of the image.</td></tr>
<tr valign="top" class="even"><td >supplier</td><td ><a href="qml-qtlocation-supplier.html">Supplier</a></td><td >The supplier of the image.</td></tr>
<tr valign="top" class="odd"><td >user</td><td ><a href="qml-qtlocation-user.html">User</a></td><td >The user who contributed the image.</td></tr>
<tr valign="top" class="even"><td >attribution</td><td >string</td><td >Attribution text which must be displayed when displaying the image.</td></tr>
</table>
<a name="example"></a>
<h2>Example</h2>
<p>The following example shows how to display images for a place:</p>
<pre class="qml">import QtQuick 2.0
import QtPositioning 5.2
import QtLocation 5.0
<span class="type">ImageModel</span> {
<span class="name">id</span>: <span class="name">imageModel</span>
<span class="name">batchSize</span>: <span class="number">3</span>
<span class="name">place</span>: <span class="name">place</span>
}
<span class="type">ListView</span> {
<span class="name">anchors</span>.top: <span class="name">parent</span>.<span class="name">top</span>
<span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span>
<span class="name">spacing</span>: <span class="number">10</span>
<span class="name">model</span>: <span class="name">imageModel</span>
<span class="name">orientation</span>: <span class="name">ListView</span>.<span class="name">Horizontal</span>
<span class="name">snapMode</span>: <span class="name">ListView</span>.<span class="name">SnapOneItem</span>
<span class="name">delegate</span>: <span class="name">Item</span> {
<span class="name">width</span>: <span class="name">listView</span>.<span class="name">width</span>
<span class="name">height</span>: <span class="name">listView</span>.<span class="name">height</span>
<span class="type">Image</span> {
<span class="name">anchors</span>.fill: <span class="name">parent</span>
<span class="name">source</span>: <span class="name">url</span>
<span class="name">fillMode</span>: <span class="name">Image</span>.<span class="name">PreserveAspectFit</span>
}
<span class="type">Text</span> {
<span class="name">text</span>: <span class="name">supplier</span>.<span class="name">name</span> <span class="operator">+</span> <span class="string">"\n"</span> <span class="operator">+</span> <span class="name">supplier</span>.<span class="name">url</span>
<span class="name">width</span>: <span class="name">parent</span>.<span class="name">width</span>
<span class="name">anchors</span>.bottom: <span class="name">parent</span>.<span class="name">bottom</span>
}
}
}</pre>
<!-- @@@ImageModel -->
<h2>Property Documentation</h2>
<!-- $$$batchSize -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="batchSize-prop"></a><span class="name">batchSize</span> : <span class="type">int</span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the batch size to use when fetching more image items.</p>
</div></div><!-- @@@batchSize -->
<br/>
<!-- $$$place -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="place-prop"></a><span class="name">place</span> : <span class="type"><a href="qml-qtlocation-place.html">Place</a></span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the Place that the images are for.</p>
</div></div><!-- @@@place -->
<br/>
<!-- $$$totalCount -->
<div class="qmlitem"><div class="qmlproto"><table class="qmlname"><tr valign="top" class="odd"><td class="tblQmlPropNode"><p><a name="totalCount-prop"></a><span class="name">totalCount</span> : <span class="type">int</span></p></td></tr></table></div><div class="qmldoc"><p>This property holds the total number of image items for the place.</p>
</div></div><!-- @@@totalCount -->
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