* Change jpegoptim to guetzli

* guetzli compresses JPGs MUCH better than jpegoptim, the output quality is near to the original image
* guetzli needs a lot of CPU and RAM resources to work, but it is compensated with much better reduce of the size of the image
* guetzli's git is here: https://github.com/google/guetzli; it is already in Debian's repos: https://packages.debian.org/search?keywords=guetzli&searchon=names&suite=all&section=all, it has also already been packaged for ALT Linux and Slackware: https://pkgs.org/download/guetzli
* Added Russian translations into the .desktop file

debian/control

@@ -9,11 +9,11 @@ Homepage: http://trimage.org
 
 Package: trimage
 Architecture: all
-Depends: ${misc:Depends}, ${python:Depends}, python-qt4 (>=4.4), optipng (>=0.6.2.1), advancecomp (>=1.15), jpegoptim (>=1.2.2), pngcrush (>=1.6.7)
+Depends: ${misc:Depends}, ${python:Depends}, python-qt4 (>=4.4), optipng (>=0.6.2.1), advancecomp (>=1.15), guetzli, pngcrush (>=1.6.7)
 XB-Python-Version: ${python:Versions}
 Description: GUI and command-line interface to optimize image files
  Trimage is a cross-platform GUI and command-line interface to optimize image
- files via optipng, advpng, pngcrush and jpegoptim, depending on the filetype
+ files via optipng, advpng, pngcrush and guetzli, depending on the filetype
  (currently, PNG and JPG files are supported). All image files are losslessly
  compressed on the highest available compression levels. Trimage gives you
  various input functions to fit your own workflow: A regular file dialog,

desktop/trimage.desktop

@@ -1,6 +1,8 @@
 [Desktop Entry]
 Name=Trimage image compressor
-Comment=A cross-platform tool for optimizing PNG and JPG files.
+Name[ru]=Программа для уменьшения веса картинок Trimage
+Comment=A cross-platform tool for optimizing PNG and JPG files
+Comment[ru]=Кросс-платформенная утилита для оптимизации файлов PNG и JPG
 Terminal=false
 Icon=trimage
 Type=Application

setup.py

@@ -24,7 +24,7 @@ setup(name = "trimage",
             ('share/applications', ['desktop/trimage.desktop']),
             ('share/man/man1', ['doc/trimage.1'])],
     scripts = ["trimage"],
-    long_description = """Trimage is a cross-platform GUI and command-line interface to optimize image files via optipng, advpng and jpegoptim, depending on the filetype (currently, PNG and JPG files are supported). It was inspired by imageoptim. All image files are losslessy compressed on the highest available compression levels. Trimage gives you various input functions to fit your own workflow: A regular file dialog, dragging and dropping and various command line options.""",
+    long_description = """Trimage is a cross-platform GUI and command-line interface to optimize image files via optipng, advpng and guetzli, depending on the filetype (currently, PNG and JPG files are supported). It was inspired by imageoptim. All image files are losslessy compressed on the highest available compression levels. Trimage gives you various input functions to fit your own workflow: A regular file dialog, dragging and dropping and various command line options.""",
     requires = ["PyQt4 (>=4.4)"],
 
     #for py2exe

src/trimage/trimage.py

@@ -22,7 +22,8 @@ from multiprocessing import cpu_count
 
 from ui import Ui_trimage
 
-VERSION = "1.0.5"
+# change version to 1.1 after replacing jpegoptim with guetzli
+VERSION = "1.1"
 
 
 class StartQT4(QMainWindow):
@@ -86,7 +87,7 @@ class StartQT4(QMainWindow):
         """Set up the command line options."""
         parser = OptionParser(version="%prog " + VERSION,
             description="GUI front-end to compress png and jpg images via "
-                "optipng, advpng and jpegoptim")
+                "optipng, advpng and guetzli")
 
         parser.set_defaults(verbose=True)
         parser.add_option("-v", "--verbose", action="store_true",
@@ -261,10 +262,12 @@ class StartQT4(QMainWindow):
         """Check if the required command line apps exist."""
         exe = ".exe" if (sys.platform == "win32") else ""
         status = False
-        retcode = self.safe_call("jpegoptim" + exe + " --version")
-        if retcode != 0:
-            status = True
-            sys.stderr.write("[error] please install jpegoptim")
+        
+        # guetzli does the compression job much better than jpegoptim (and much slower)
+        #retcode = self.safe_call("jpegoptim" + exe + " --version")
+        #if retcode != 0:
+            #status = True
+            #sys.stderr.write("[error] please install jpegoptim")
 
         retcode = self.safe_call("optipng" + exe + " -v")
         if retcode != 0:
@@ -282,6 +285,13 @@ class StartQT4(QMainWindow):
             sys.stderr.write("[error] please install pngcrush")
         return status
         
+        # guetzli currently does not have neither --version not --help flags
+        retcode = self.safe_call("guetzli" + exe)
+        if retcode != 0:
+            status = True
+            sys.stderr.write("[error] please install guetzli")
+        return status
+
     def safe_call(self, command):
         """ cross-platform command-line check """
         while True:
@@ -431,7 +441,10 @@ class Image:
         self.compressing = True
         exe = ".exe" if (sys.platform == "win32") else ""
         runString = {
-            "jpeg": u"jpegoptim" + exe + " -f --strip-all '%(file)s'",
+            # "jpeg": u"jpegoptim" + exe + " -f --strip-all '%(file)s'",
+            # I commented out jpegoptim because guetzli compresses MUCH BETTER having a similar output quality
+            # the default quality level for guetzli, if the parameter '--quality Q' is not passed, it 95.
+            "jpeg": u"guetzli" + exe + " --quality 95 '%(file)s' '%(file)s.bak' && mv '%(file)s.bak' '%(file)s'",
             "png": u"optipng" + exe + " -force -o7 '%(file)s'&&advpng" + exe + " -z4 '%(file)s' && pngcrush -rem gAMA -rem alla -rem cHRM -rem iCCP -rem sRGB -rem time '%(file)s' '%(file)s.bak' && mv '%(file)s.bak' '%(file)s'"
         }
         # Create a backup file