{"id":182658,"date":"2013-06-09T22:34:03","date_gmt":"2013-06-09T18:34:03","guid":{"rendered":"http:\/\/savepearlharbor.com\/?p=182658"},"modified":"-0001-11-30T00:00:00","modified_gmt":"-0001-11-29T21:00:00","slug":"","status":"publish","type":"post","link":"https:\/\/savepearlharbor.com\/?p=182658","title":{"rendered":"<span class=\"post_title\">QML Camera: \u043f\u0435\u0440\u0435\u0434\u0430\u0447\u0430 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f \u0432 C++ \u043a\u043e\u0434<\/span>"},"content":{"rendered":"<div class=\"content html_format\">       <img decoding=\"async\" align=\"left\" src=\"http:\/\/habrastorage.org\/storage2\/eb1\/fc7\/26f\/eb1fc726f22c3748d00a5034e14393c2.png\"\/> \u0412 \u0434\u0430\u043d\u043d\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d \u043f\u0440\u0438\u043c\u0435\u0440 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0433\u043e \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c Qt 5 \u0438 Qt Multimedia, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 QML-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442 <a href=\"http:\/\/qt-project.org\/doc\/qt-5.0\/qtmultimedia\/qml-qtmultimedia5-camera.html\">Camera<\/a> \u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0451\u0442 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435 \u0432 C++ \u043a\u043e\u0434 \u0434\u043b\u044f \u0434\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0435\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438.<br \/>  <a name=\"habracut\"><\/a><\/p>\n<p>  \u041d\u0430\u0447\u043d\u0451\u043c \u0441 \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u0438\u044f \u043a\u043b\u0430\u0441\u0441\u0430 <code>ImageProcessor<\/code>, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u044b \u0431\u0443\u0434\u0435\u043c \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0432 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043c\u043e\u0434\u0443\u043b\u044f QML.<br \/>  \u041d\u0438\u0436\u0435 \u043f\u0440\u0438\u0432\u0435\u0434\u0451\u043d \u0444\u0430\u0439\u043b \u0437\u0430\u0433\u043e\u043b\u043e\u0432\u043a\u0430 <code>ImageProcessor<\/code>, \u0432 \u043d\u0451\u043c \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0451\u043d \u0441\u043b\u043e\u0442 <code>processImage()<\/code>, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0432\u044b\u0437\u0432\u0430\u043d \u0438\u0437 QML \u043a\u043e\u0434\u0430.<\/p>\n<pre><code class=\"cpp\">#ifndef IMAGEPROCESSOR_H #define IMAGEPROCESSOR_H  #include &lt;QObject&gt;  class ImageProcessor : public QObject {     Q_OBJECT public:     explicit ImageProcessor(QObject *parent = 0);   public slots:     void processImage(const QString& image);    }; #endif \/\/ IMAGEPROCESSOR_H <\/code><\/pre>\n<p>  \u0414\u0430\u043b\u0435\u0435 \u043f\u0440\u0438\u0432\u0435\u0434\u0451\u043d\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f \u043a\u043b\u0430\u0441\u0441\u0430 <code>ImageProcessor<\/code>. \u0424\u0443\u043d\u043a\u0446\u0438\u044f <code>processImage()<\/code> \u043f\u0440\u0438\u043d\u0438\u043c\u0430\u0435\u0442 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435 \u043e\u0442 \u043f\u043e\u0441\u0442\u0430\u0432\u0449\u0438\u043a\u0430 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0439 (image provider). \u041a\u0430\u043a \u0442\u043e\u043b\u044c\u043a\u043e \u0432 \u043d\u0435\u0451 \u0431\u0443\u0434\u0435\u0442 \u043f\u0435\u0440\u0435\u0434\u0430\u043d\u043e \u0432\u0430\u043b\u0438\u0434\u043e\u0435 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435, \u043c\u044b \u0441\u043c\u043e\u0436\u0435\u043c \u043a\u0430\u043a\u0438\u043c-\u043b\u0438\u0431\u043e \u043e\u0431\u0440\u0430\u0437\u043e\u043c \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u0430\u0442\u044c \u0435\u0433\u043e.<\/p>\n<pre><code class=\"cpp\">#include &quot;imageprocessor.h&quot; #include &lt;QtQml\/QmlEngine&gt; #include &lt;QtQml\/QmlContext&gt; #include &lt;QtQuick\/QQuickImageProvider&gt; #include &lt;QDebug&gt;  ImageProcessor::ImageProcessor(QObject *parent) : QObject(parent) {}  void ImageProcessor::processImage(const QString& path) {     QUrl imageUrl(path);     QQmlEngine* engine = QQmlEngine::contextForObject(this)-&gt;engine();     QQmlImageProviderBase* imageProviderBase = engine-&gt;imageProvider(      imageUrl.host());     QQuickImageProvider* imageProvider = static_cast&lt;QQuickImageProvider&gt;      (imageProviderBase);          QSize imageSize;     QString imageId = imageUrl.path().remove(0,1);     QImage image = imageProvider-&gt;requestImage(imageId, &imageSize, imageSize);     if( !image.isNull()) {         \/\/ \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0430 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u044f     } } <\/code><\/pre>\n<p>  \u0422\u0435\u043f\u0435\u0440\u044c \u043d\u0430\u043c \u043d\u0443\u0436\u043d\u043e \u0437\u0430\u0440\u0435\u0433\u0438\u0441\u0442\u0440\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043a\u043b\u0430\u0441\u0441 <code>ImageProvider<\/code> \u0434\u043b\u044f \u0442\u043e\u0433\u043e, \u0447\u0442\u043e\u0431\u044b \u043c\u044b \u043c\u043e\u0433\u043b\u0438 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u0435\u0433\u043e \u0432 QML \u043a\u043e\u0434\u0435. \u0421\u0434\u0435\u043b\u0430\u0442\u044c \u044d\u0442\u043e \u043c\u043e\u0436\u043d\u043e \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0433\u043b\u043e\u0431\u0430\u043b\u044c\u043d\u043e\u0439 \u0444\u0443\u043d\u043a\u0446\u0438\u0438 <code>qmlRegisterType<\/code>.<\/p>\n<pre><code class=\"cpp\">#include  &lt;QtGui\/QGuiApplication&gt; #include  &lt;QQmlEngine&gt; #include  &lt;QQmlComponent&gt; #include  &lt;QtQuick\/QQuickView&gt;  #include &quot;imageprocessor.h&quot;  int main(int argc, char *argv[]) {     qmlRegisterType&lt;ImageProcessor&gt;(&quot;ImageProcessor&quot;, 1, 0, &quot;ImageProcessor&quot;);      QGuiApplication app(argc, argv);      QQuickView view;      QObject::connect(view.engine(),SIGNAL(quit()),&app,SLOT(quit()));         view.setSource(QUrl::fromLocalFile(&quot;qml\/main.qml&quot;));     view.show();      return app.exec(); } <\/code><\/pre>\n<p>  \u0412\u0441\u0451, \u043d\u0430 \u044d\u0442\u043e\u043c \u0441 C++ \u0447\u0430\u0441\u0442\u044c\u044e \u043f\u043e\u043a\u043e\u043d\u0447\u0435\u043d\u043e. \u0414\u0430\u043b\u0435\u0435 \u0432\u044b \u043c\u043e\u0436\u0435\u0442\u0435 \u0443\u0432\u0438\u0434\u0435\u0442\u044c \u0434\u0435\u043c\u043e\u043d\u0441\u0442\u0440\u0430\u0446\u0438\u044e \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u044f \u0434\u0430\u043d\u043d\u043e\u0433\u043e \u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442\u0430.<\/p>\n<pre><code class=\"javascript\">import QtQuick 2.0 import QtMultimedia 5.0 import ImageProcessor 1.0  Rectangle {     width: 360     height: 360      \/\/ \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u0435\u0442 live-\u043f\u043e\u0442\u043e\u043a \u0441 \u043a\u0430\u043c\u0435\u0440\u044b     VideoOutput {         source: camera         anchors.fill: parent         focus : visible     }      \/\/ \u043e\u0442\u043e\u0431\u0440\u0430\u0436\u0430\u0435\u0442 \u0437\u0430\u0445\u0432\u0430\u0447\u0435\u043d\u043d\u044b\u0439 \u043a\u0430\u0434\u0440     Image {         id: photoPreview         anchors.fill: parent         fillMode: Image.PreserveAspectFit     }      Camera {         id: camera         imageProcessing.whiteBalanceMode: CameraImageProcessing.WhiteBalanceFlash         captureMode: Camera.CaptureStillImage          exposure {             exposureCompensation: -1.0             exposureMode: Camera.ExposurePortrait         }          flash.mode: Camera.FlashRedEyeReduction          imageCapture {             onImageCaptured: {                 photoPreview.source = preview                 imageProcessor.processImage(preview);             }         }     }      MouseArea{         anchors.fill: parent         onClicked: {             camera.imageCapture.capture();         }     }      ImageProcessor{         id: imageProcessor     } } <\/code><\/pre>\n<p>  \u0421\u043f\u0430\u0441\u0438\u0431\u043e \u0437\u0430 \u0432\u043d\u0438\u043c\u0430\u043d\u0438\u0435.   \t<\/p>\n<div class=\"clear\"><\/div>\n<\/p><\/div>\n<p> \u0441\u0441\u044b\u043b\u043a\u0430 \u043d\u0430 \u043e\u0440\u0438\u0433\u0438\u043d\u0430\u043b \u0441\u0442\u0430\u0442\u044c\u0438 <a href=\"http:\/\/habrahabr.ru\/post\/182658\/\"> http:\/\/habrahabr.ru\/post\/182658\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<div class=\"content html_format\">       <img decoding=\"async\" align=\"left\" src=\"http:\/\/habrastorage.org\/storage2\/eb1\/fc7\/26f\/eb1fc726f22c3748d00a5034e14393c2.png\"\/> \u0412 \u0434\u0430\u043d\u043d\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u0440\u0430\u0441\u0441\u043c\u043e\u0442\u0440\u0435\u043d \u043f\u0440\u0438\u043c\u0435\u0440 \u043f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f, \u043d\u0430\u043f\u0438\u0441\u0430\u043d\u043d\u043e\u0433\u043e \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c Qt 5 \u0438 Qt Multimedia, \u043a\u043e\u0442\u043e\u0440\u043e\u0435 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u0443\u0435\u0442 QML-\u043a\u043e\u043c\u043f\u043e\u043d\u0435\u043d\u0442 <a href=\"http:\/\/qt-project.org\/doc\/qt-5.0\/qtmultimedia\/qml-qtmultimedia5-camera.html\">Camera<\/a> \u0438 \u043f\u0435\u0440\u0435\u0434\u0430\u0451\u0442 \u0438\u0437\u043e\u0431\u0440\u0430\u0436\u0435\u043d\u0438\u0435 \u0432 C++ \u043a\u043e\u0434 \u0434\u043b\u044f \u0434\u0430\u043b\u044c\u043d\u0435\u0439\u0448\u0435\u0439 \u043e\u0431\u0440\u0430\u0431\u043e\u0442\u043a\u0438.  <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-182658","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/182658","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=182658"}],"version-history":[{"count":0,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=\/wp\/v2\/posts\/182658\/revisions"}],"wp:attachment":[{"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=182658"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=182658"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/savepearlharbor.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=182658"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}