From 4e386af2f811d8fbaa91259e1300e9b080d71533 Mon Sep 17 00:00:00 2001
From: Tobias Markmann <tm@ayena.de>
Date: Wed, 20 Jul 2016 12:57:16 +0200
Subject: Add button to changelog dialog to about dialog

Test-Information:

Tested with Qt 5.5.1 on OS X 10.11.5 and Qt 5.3.2 on Debian
8.5.

Change-Id: I727bca574ec1433df01bc68e5da0c7678fdb9915

diff --git a/Swift/QtUI/QtAboutWidget.cpp b/Swift/QtUI/QtAboutWidget.cpp
index b69113f..2fc8bae 100644
--- a/Swift/QtUI/QtAboutWidget.cpp
+++ b/Swift/QtUI/QtAboutWidget.cpp
@@ -51,6 +51,10 @@ QtAboutWidget::QtAboutWidget() : QDialog() {
     QPushButton* licenseButton = new QPushButton(tr("View License"), this);
     mainLayout->addWidget(licenseButton);
     connect(licenseButton, SIGNAL(clicked()), this, SLOT(handleLicenseClicked()));
+
+    QPushButton* changelogButton = new QPushButton(tr("View Changes"), this);
+    mainLayout->addWidget(changelogButton);
+    connect(changelogButton, SIGNAL(clicked()), this, SLOT(handleChangelogClicked()));
 #else
     // Some Linux desktops have dialog window decorations without close window buttons.
     // This code adds a dedicated button to close the about window dialog.
@@ -61,6 +65,10 @@ QtAboutWidget::QtAboutWidget() : QDialog() {
     buttonLayout->addWidget(licenseButton);
     connect(licenseButton, SIGNAL(clicked()), this, SLOT(handleLicenseClicked()));
 
+    QPushButton* changelogButton = new QPushButton(tr("View Changes"), this);
+    buttonLayout->addWidget(changelogButton);
+    connect(changelogButton, SIGNAL(clicked()), this, SLOT(handleChangelogClicked()));
+
     buttonLayout->addItem(new QSpacerItem(20,20));
 
     QPushButton* closeButton = new QPushButton(tr("Close"), this);
@@ -71,10 +79,18 @@ QtAboutWidget::QtAboutWidget() : QDialog() {
 }
 
 void QtAboutWidget::handleLicenseClicked() {
+    openPlainTextWindow(":/COPYING");
+}
+
+void QtAboutWidget::handleChangelogClicked() {
+    openPlainTextWindow(":/ChangeLog.md");
+}
+
+void QtAboutWidget::openPlainTextWindow(const QString& path) {
     QTextEdit* text = new QTextEdit();
     text->setAttribute(Qt::WA_DeleteOnClose);
     text->setReadOnly(true);
-    QFile file(":/COPYING");
+    QFile file(path);
     file.open(QIODevice::ReadOnly);
     QTextStream in(&file);
     in.setCodec("UTF-8");
diff --git a/Swift/QtUI/QtAboutWidget.h b/Swift/QtUI/QtAboutWidget.h
index 7d0d628..c8b0356 100644
--- a/Swift/QtUI/QtAboutWidget.h
+++ b/Swift/QtUI/QtAboutWidget.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010 Isode Limited.
+ * Copyright (c) 2010-2016 Isode Limited.
  * All rights reserved.
  * See the COPYING file for more information.
  */
@@ -17,5 +17,9 @@ namespace Swift {
 
         private slots:
             void handleLicenseClicked();
+            void handleChangelogClicked();
+
+        private:
+            void openPlainTextWindow(const QString& path);
     };
 }
diff --git a/Swift/QtUI/Swift.qrc b/Swift/QtUI/Swift.qrc
index 1572d93..3c9f43f 100644
--- a/Swift/QtUI/Swift.qrc
+++ b/Swift/QtUI/Swift.qrc
@@ -22,6 +22,7 @@
 		<file alias="icons/new-chat.png">../resources/icons/new-chat.png</file>
 		<file alias="icons/actions.png">../resources/icons/actions.png</file>
 		<file alias="COPYING">COPYING</file>
+		<file alias="ChangeLog.md">../ChangeLog.md</file>
 		<file alias="icons/line.png">../resources/icons/line.png</file>
 		<file alias="icons/rect.png">../resources/icons/rect.png</file>
 		<file alias="icons/circle.png">../resources/icons/circle.png</file>
-- 
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