Ref T213, "about" component to display legal HTML page

src/blackgui/components/abouthtmlcomponent.cpp

@@ -0,0 +1,55 @@
+/* Copyright (C) 2018
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#include "blackgui/guiapplication.h"
+#include "blackmisc/fileutils.h"
+#include "blackmisc/directoryutils.h"
+#include "abouthtmlcomponent.h"
+#include "ui_abouthtmlcomponent.h"
+#include <QTimer>
+#include <QPointer>
+
+using namespace BlackMisc;
+
+namespace BlackGui
+{
+    namespace Components
+    {
+        CAboutHtmlComponent::CAboutHtmlComponent(QWidget *parent) :
+            QFrame(parent),
+            ui(new Ui::CAboutHtmlComponent)
+        {
+            ui->setupUi(this);
+            const QPointer<CAboutHtmlComponent> myself(this);
+            QTimer::singleShot(2500, this, [ = ]
+            {
+                if (!myself) { return; }
+                myself->loadAbout();
+            });
+        }
+
+        CAboutHtmlComponent::~CAboutHtmlComponent()
+        { }
+
+        void CAboutHtmlComponent::loadAbout()
+        {
+            // make links absolute
+            static const QString htmlFixed = [ = ]
+            {
+                // workaround:
+                // 1) Only reading as HTML gives proper formatting
+                // 2) Reading the file resource fails (likely because of the style sheet)
+                const QString html = CFileUtils::readFileToString(CDirectoryUtils::aboutFilePath());
+                const QString legalDir = sGui->getGlobalSetup().getLegalDirectoryUrl().getFullUrl();
+                return QString(html).replace(QLatin1String("href=\"./"), "href=\"" + legalDir);
+            }();
+            ui->tbr_About->setHtml(htmlFixed);
+        }
+    } // ns
+} // ns