perf(file-content-search):使用元数据缩略图接口生成图片缩略图

libsearch/index/file-reader.cpp

@@ -54,4 +54,19 @@ void FileReader::getTextContent(const QString &path, QString &textContent, const
             break;
         }
     }
-}
+}
+
+QImage FileReader::getThumbnail(const QString &path, const QSize &targetSize, qreal dpr)
+{
+    QString mimeType = UkuiFileMetadata::MimeUtils::strictMimeType(path, {}).name();
+    QList<UkuiFileMetadata::Extractor*> extractors = m_extractorManager.fetchExtractors(mimeType);
+    FileExtractionResult result(path, mimeType, UkuiFileMetadata::ExtractionResult::Flag::ExtractThumbnail);
+    result.setThumbnailRequest(UkuiFileMetadata::ThumbnailRequest(targetSize, dpr));
+    for(auto extractor : extractors) {
+        extractor->extract(&result);
+        if(result.thumbnail().isValid()) {
+            return result.thumbnail().image();
+        }
+    }
+    return {};
+}

libsearch/index/file-reader.h

@@ -21,12 +21,14 @@
 #define FILEREADER_H
 
 #include <extractor-manager.h>
+#include <QImage>
 namespace UkuiSearch {
 class FileReader{
 public:
     static FileReader* getInstance();
     ~FileReader() = default;
     void getTextContent(const QString &path, QString &textContent, const QString &suffix);
+    QImage getThumbnail(const QString &path, const QSize &targetSize, qreal dpr);
 
 private:
     FileReader();

libsearch/index/file-search-plugin.cpp

@@ -28,6 +28,7 @@
 #include "file-indexer-config.h"
 #include "libkydate.h"
 #include "data-collecter.h"
+#include "file-reader.h"
 
 #define OCR_ICONLABLE_WITH 352
 #define OCR_ICONLABLE_HEIGHT 247
@@ -599,23 +600,23 @@ QWidget *FileContentSearchPlugin::detailPage(const ResultInfo &ri)
     if(ri.actionKey == m_currentActionKey) {
         return m_detailPage;
     }
+
     if (1 == ri.type) {
-        auto creator = new ThumbnailCreator(ri.actionKey);
-        connect(creator, &ThumbnailCreator::ready, this, [&](QString uri, const QImage &image){
+        auto creator = new ThumbnailCreator(ri.actionKey, QSize(OCR_ICONLABLE_WITH, OCR_ICONLABLE_HEIGHT), m_detailPage->window()->devicePixelRatio());
+        connect(creator, &ThumbnailCreator::ready, this, [&, ri](const QString& uri, const QImage &image){
             if(uri != m_currentActionKey) {
                 return;
             }
             QPixmap pixmap = QPixmap::fromImage(image);
             if(!pixmap.isNull()) {
-                m_iconLabel->setPixmap(pixmap.scaled(OCR_ICONLABLE_WITH, OCR_ICONLABLE_HEIGHT, Qt::KeepAspectRatio, Qt::SmoothTransformation));
+                m_iconLabel->setPixmap(pixmap);
                 m_detailLyt->setContentsMargins(8, (OCR_ICONLABLE_HEIGHT-pixmap.height())/2 + 8, 16, 0);
             } else {
                 m_iconLabel->setPixmap(ri.icon.pixmap(120, 120));
             }
         }, Qt::QueuedConnection);
         m_thumbnailPool.start(creator);
-
-        m_iconLabel->setPixmap({});
+        m_iconLabel->setPixmap(ri.icon.pixmap(120, 120));
         m_detailLyt->setContentsMargins(8, 50, 16, 0);
         m_pluginLabel->setText(tr("OCR"));
         m_snippetLabel->hide();
@@ -707,7 +708,7 @@ void FileContentSearchPlugin::initDetailPage()
     m_detailLyt->setContentsMargins(8, 50, 16, 0);
     m_iconLabel = new QLabel(m_detailPage);
     m_iconLabel->setAlignment(Qt::AlignCenter);
-    //m_iconLabel->setFixedHeight(128);
+    m_iconLabel->setMinimumHeight(120);
 
     m_nameFrame = new QFrame(m_detailPage);
     m_nameFrameLyt = new QHBoxLayout(m_nameFrame);
@@ -798,14 +799,16 @@ void FileContentSearchPlugin::initDetailPage()
 //    return nullptr;
 //}
 
-ThumbnailCreator::ThumbnailCreator(QString url, QObject *parent): QObject(parent)
+ThumbnailCreator::ThumbnailCreator(const QString &url, const QSize &targetSize, qreal dpr, QObject *parent): QObject(parent)
 {
     setAutoDelete(true);
     m_url = url;
+    m_targetSize = targetSize;
+    m_dpr = dpr;
 }
 
 void ThumbnailCreator::run()
 {
-    Q_EMIT ready(m_url, QImage(m_url));
+    Q_EMIT ready(m_url, FileReader::getInstance()->getThumbnail(m_url, m_targetSize, m_dpr));
 }
 #include "file-search-plugin.moc"

libsearch/index/file-search-plugin.h

@@ -209,7 +209,7 @@ class ThumbnailCreator : public QObject, public QRunnable
 {
     Q_OBJECT
 public:
-    explicit ThumbnailCreator(QString url, QObject *parent = nullptr);
+    explicit ThumbnailCreator(const QString &url, const QSize &targetSize, qreal dpr, QObject *parent = nullptr);
 
 protected:
     void run() override;
@@ -219,6 +219,8 @@ Q_SIGNALS:
 
 private:
     QString m_url;
+    QSize m_targetSize;
+    qreal m_dpr;
 };
 }