aspectRation handling for images, other then images types of downloads, progress fix, labels, context menu to open files

ui/utils/image.h

@@ -0,0 +1,61 @@
+/*
+ * Squawk messenger. 
+ * Copyright (C) 2019  Yury Gubich <blue@macaw.me>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef IMAGE_H
+#define IMAGE_H
+
+#include <QLabel>
+#include <QPixmap>
+
+/**
+ * @todo write docs
+ */
+class Image : public QLabel
+{
+public:
+    /**
+     * Default constructor
+     */
+    Image(const QString& path, QWidget* parent = nullptr);
+
+    /**
+     * Destructor
+     */
+    ~Image();
+
+    /**
+     * @todo write docs
+     *
+     * @param  TODO
+     * @return TODO
+     */
+    int heightForWidth(int width) const override;
+
+    /**
+     * @todo write docs
+     *
+     * @return TODO
+     */
+    virtual bool hasHeightForWidth() const;
+    
+private:
+    QPixmap pixmap;
+    qreal aspectRatio;
+};
+
+#endif // IMAGE_H