Open downloaded image with mouse click on thumbnail

src/chatlog/content/filetransferwidget.cpp

@@ -53,7 +53,7 @@ FileTransferWidget::FileTransferWidget(QWidget *parent, ToxFile file)
     // hide the QWidget background (background-color: transparent doesn't seem to work)
     setAttribute(Qt::WA_TranslucentBackground, true);
 
-    ui->previewLabel->hide();
+    ui->previewButton->hide();
     ui->filenameLabel->setText(file.fileName);
     ui->progressBar->setValue(0);
     ui->fileSizeLabel->setText(getHumanReadableSize(file.filesize));
@@ -86,6 +86,7 @@ FileTransferWidget::FileTransferWidget(QWidget *parent, ToxFile file)
     connect(Core::getInstance(), &Core::fileTransferBrokenUnbroken, this, &FileTransferWidget::fileTransferBrokenUnbroken);
     connect(ui->topButton, &QPushButton::clicked, this, &FileTransferWidget::onTopButtonClicked);
     connect(ui->bottomButton, &QPushButton::clicked, this, &FileTransferWidget::onBottomButtonClicked);
+    connect(ui->previewButton, &QPushButton::clicked, this, &FileTransferWidget::onPreviewButtonClicked);
 
     setupButtons();
 
@@ -482,7 +483,7 @@ void FileTransferWidget::handleButton(QPushButton *btn)
         }
     }
 
-    if (btn->objectName() == "ok")
+    if (btn->objectName() == "ok" || btn->objectName() == "previewButton")
     {
         Widget::confirmExecutableOpen(QFileInfo(fileInfo.filePath));
     }
@@ -501,13 +502,13 @@ void FileTransferWidget::showPreview(const QString &filename)
 
     if (previewExtensions.contains(QFileInfo(filename).suffix()))
     {
-        const int size = qMax(ui->previewLabel->width(), ui->previewLabel->height());
+        const int size = qMax(ui->previewButton->width(), ui->previewButton->height());
 
         QPixmap pmap = QPixmap(filename).scaled(QSize(size, size),
                                                 Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation);
-        ui->previewLabel->setPixmap(pmap);
-        ui->previewLabel->show();
-        ui->previewLabel->setCursor(Qt::PointingHandCursor);
+        ui->previewButton->setIcon(QIcon(pmap));
+        ui->previewButton->setIconSize(pmap.size());
+        ui->previewButton->show();
         // Show mouseover preview, but make sure it's not larger than 50% of the screen width/height
         QRect desktopSize = QApplication::desktop()->screenGeometry();
         QImage image = QImage(filename).scaled(0.5 * desktopSize.width(),
@@ -518,7 +519,7 @@ void FileTransferWidget::showPreview(const QString &filename)
         buffer.open(QIODevice::WriteOnly);
         image.save(&buffer, "PNG");
         buffer.close();
-        ui->previewLabel->setToolTip("<img src=data:image/png;base64," + imageData.toBase64() + "/>");
+        ui->previewButton->setToolTip("<img src=data:image/png;base64," + imageData.toBase64() + "/>");
     }
 }
 
@@ -531,3 +532,8 @@ void FileTransferWidget::onBottomButtonClicked()
 {
     handleButton(ui->bottomButton);
 }
+
+void FileTransferWidget::onPreviewButtonClicked()
+{
+    handleButton(ui->previewButton);
+}

src/chatlog/content/filetransferwidget.h

@@ -70,6 +70,7 @@ protected:
 private slots:
     void onTopButtonClicked();
     void onBottomButtonClicked();
+    void onPreviewButtonClicked();
 
 private:
     Ui::FileTransferWidget *ui;

src/chatlog/content/filetransferwidget.ui

@@ -270,7 +270,7 @@
          </layout>
         </item>
         <item row="1" column="0">
-         <widget class="QLabel" name="previewLabel">
+         <widget class="QPushButton" name="previewButton">
           <property name="sizePolicy">
            <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
             <horstretch>0</horstretch>
@@ -289,14 +289,21 @@
             <height>60</height>
            </size>
           </property>
-          <property name="frameShape">
-           <enum>QFrame::Box</enum>
+          <property name="cursor">
+           <cursorShape>PointingHandCursor</cursorShape>
           </property>
-          <property name="lineWidth">
-           <number>2</number>
+          <property name="icon">
+           <iconset resource="../../../res.qrc">
+            <normaloff>:/ui/fileTransferInstance/no.svg</normaloff>:/ui/fileTransferInstance/no.svg</iconset>
+          </property>
+          <property name="iconSize">
+           <size>
+            <width>32</width>
+            <height>18</height>
+           </size>
           </property>
-          <property name="text">
-           <string>[preview]</string>
+          <property name="flat">
+           <bool>true</bool>
           </property>
          </widget>
         </item>