Update mimetypes and provide --mimetypes cmdline option

kolourpaint.cpp

@@ -34,6 +34,7 @@
 
 #include <QApplication>
 #include <QCommandLineParser>
+#include <QImageReader>
 #include <QDir>
 #include <KLocalizedString>
 
@@ -89,9 +90,24 @@ int main(int argc, char *argv [])
   cmdLine.addPositionalArgument(QStringLiteral("files"), i18n("Image files to open, optionally"), QStringLiteral("[files...]"));
 
   aboutData.setupCommandLine(&cmdLine);
+  cmdLine.addOption(QCommandLineOption("mimetypes", i18n("List all readable image MimeTypes")));
   cmdLine.process(app);
   aboutData.processCommandLine(&cmdLine);
 
+  // produce a list of MimeTypes which kolourpaint can handle (can be used inside the .desktop file)
+  if ( cmdLine.isSet("mimetypes") )
+  {
+    foreach (const QByteArray &type, QImageReader::supportedMimeTypes())
+    {
+      if ( !type.isEmpty() )
+        printf("%s;", type.constData());
+    }
+
+    printf("\n");
+
+    return 0;
+  }
+
   if ( app.isSessionRestored() )
   {
     // Creates a kpMainWindow using the default constructor and then

org.kde.kolourpaint.desktop

@@ -193,10 +193,8 @@ Type=Application
 Exec=kolourpaint %u
 X-DocPath=kolourpaint/index.html
 
-# SYNC: Run branches/kolourpaint/control/scripts/kde4port/gen_mimetype_line.sh in
-#       the version of kdelibs/kimgio/ (e.g. KDE 4.0) KolourPaint is
-#       shipped with.
-MimeType=image/avif;image/bmp;image/gif;image/jpeg;image/jp2;image/jpeg2000;image/png;image/tiff;image/x-dds;image/x-eps;image/x-exr;image/x-hdr;image/x-ico;image/vnd.microsoft.icon;image/x-pcx;image/x-portable-bitmap;image/x-portable-graymap;image/x-portable-pixmap;image/x-psd;image/x-rgb;image/x-tga;image/x-xbitmap;image/x-xcf;image/x-xpixmap;video/x-mng;image/x-sun-raster;image/svg+xml;image/svg+xml-compressed;image/x-webp;
+# SYNC: Run kolourpaint --mimetypes
+MimeType=application/x-krita;application/x-navi-animation;image/avif;image/avif-sequence;image/bmp;image/gif;image/heif;image/jpeg;image/openraster;image/png;image/svg+xml;image/svg+xml-compressed;image/tiff;image/vnd.adobe.photoshop;image/vnd.microsoft.icon;image/vnd.wap.wbmp;image/webp;image/x-eps;image/x-exr;image/x-hdr;image/x-icns;image/x-mng;image/x-pcx;image/x-pic;image/x-portable-bitmap;image/x-portable-graymap;image/x-portable-pixmap;image/x-rgb;image/x-sun-raster;image/x-tga;image/x-xbitmap;image/x-xcf;image/x-xpixmap;
 
 Categories=Qt;KDE;Graphics;2DGraphics;RasterGraphics;
 Terminal=false