ImageViewer: Add up-to-date mimetypes (and add webp mimetype)

The list of mimetypes was missing new types like tga, dds and webp.
Just ask QImageReader::supportedMimeTypes() for the supported types,
which is also easier to maintain.

Task-number: QTBUG-45061
Change-Id: I80573da868088915b8d746c56374786e5e36903c
Reviewed-by: hjk <hjk@theqtcompany.com>
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>

src/plugins/imageviewer/ImageViewer.mimetypes.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0"?>
+<mime-info xmlns='http://www.freedesktop.org/standards/shared-mime-info'>
+
+    <mime-type type="image/webp">
+        <comment>WebP Image file</comment>
+        <glob pattern="*.webp"/>
+    </mime-type>
+
+</mime-info>

src/plugins/imageviewer/imageviewer.qrc

@@ -8,5 +8,6 @@
         <file>images/background.png</file>
         <file>images/pause-small.png</file>
         <file>images/play-small.png</file>
+        <file>ImageViewer.mimetypes.xml</file>
     </qresource>
 </RCC>

src/plugins/imageviewer/imageviewerfactory.cpp

@@ -47,29 +47,14 @@ ImageViewerFactory::ImageViewerFactory(QObject *parent) :
     setId(Constants::IMAGEVIEWER_ID);
     setDisplayName(qApp->translate("OpenWith::Editors", Constants::IMAGEVIEWER_DISPLAY_NAME));
 
-    QMap<QByteArray, const char *> possibleMimeTypes;
+    const QList<QByteArray> supportedMimeTypes = QImageReader::supportedMimeTypes();
-    possibleMimeTypes.insert("bmp", "image/bmp");
+    foreach (const QByteArray &format, supportedMimeTypes)
-    possibleMimeTypes.insert("gif", "image/gif");
+        addMimeType(format.constData());
-    possibleMimeTypes.insert("ico", "image/x-icon");
-    possibleMimeTypes.insert("jpeg","image/jpeg");
-    possibleMimeTypes.insert("jpg", "image/jpeg");
-    possibleMimeTypes.insert("mng", "video/x-mng");
-    possibleMimeTypes.insert("pbm", "image/x-portable-bitmap");
-    possibleMimeTypes.insert("pgm", "image/x-portable-graymap");
-    possibleMimeTypes.insert("png", "image/png");
-    possibleMimeTypes.insert("ppm", "image/x-portable-pixmap");
-    possibleMimeTypes.insert("svg", "image/svg+xml");
-    possibleMimeTypes.insert("tif", "image/tiff");
-    possibleMimeTypes.insert("tiff","image/tiff");
-    possibleMimeTypes.insert("xbm", "image/xbm");
-    possibleMimeTypes.insert("xpm", "image/xpm");
 
-    QList<QByteArray> supportedFormats = QImageReader::supportedImageFormats();
+#if (QT_VERSION < QT_VERSION_CHECK(5, 5, 0)) && !QT_NO_SVGRENDERER
-    foreach (const QByteArray &format, supportedFormats) {
+    // Workaround for https://codereview.qt-project.org/108693
-        const char *value = possibleMimeTypes.value(format);
+    addMimeType("image/svg+xml");
-        if (value)
+#endif
-            addMimeType(value);
-    }
 }
 
 Core::IEditor *ImageViewerFactory::createEditor()

src/plugins/imageviewer/imageviewerplugin.cpp

@@ -38,6 +38,7 @@
 #include <coreplugin/icore.h>
 #include <coreplugin/id.h>
 #include <extensionsystem/pluginmanager.h>
+#include <utils/mimetypes/mimedatabase.h>
 
 namespace ImageViewer {
 namespace Internal {
@@ -49,6 +50,8 @@ bool ImageViewerPlugin::initialize(const QStringList &arguments, QString *errorM
     Q_UNUSED(arguments)
     Q_UNUSED(errorMessage)
 
+    Utils::MimeDatabase::addMimeTypes(QLatin1String(":/imageviewer/ImageViewer.mimetypes.xml"));
+
     m_factory = new ImageViewerFactory(this);
     addAutoReleasedObject(m_factory);
     return true;