1 files changed, 63 insertions, 0 deletions
diff --git a/src/python/utils.py b/src/python/utils.py
new file mode 100644
index 0000000..86f76c0
--- /dev/null
+++ b/src/python/utils.py
@@ -0,0 +1,63 @@
+# libavg - Media Playback Engine.
+# Copyright (C) 2003-2014 Ulrich von Zadow
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2 of the License, or (at your option) any later version.
+#
+# This library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with this library; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+# Current versions can be found at www.libavg.de
+#
+# Original author of this file is Martin Heistermann <mh at sponc dot de>
+#
+
+import os
+
+from libavg import avg, mathutil, player
+
+
+def getMediaDir(_file_=None, subdir='media'):
+    """call with _file_=__file__"""
+    if _file_ == None:
+        _file_ = __file__
+    myDir = os.path.dirname(_file_)
+    mediaDir = os.path.join(myDir, subdir)
+    return os.path.abspath(mediaDir)
+
+def getMediaDirFromNode(node, path=''):
+    '''
+    Recursively build the mediadir path, starting from the given node.
+    '''
+    if node.getParent():
+        if type(node) in (avg.DivNode, avg.AVGNode):
+            return getMediaDirFromNode(node.getParent(), os.path.join(node.mediadir, path))
+        else:
+            return getMediaDirFromNode(node.getParent(), path)
+    else:
+        return path
+
+def createImagePreviewNode(maxSize, absHref):
+    node =  player.createNode('image', {'href': absHref})
+    node.size = mathutil.getScaledDim(node.size, max = maxSize)
+    return node
+
+def initFXCache(numFXNodes):
+    nodes = []
+    mediadir = os.path.join(os.path.dirname(__file__), 'data')
+    for i in range(numFXNodes):
+        node = avg.ImageNode(href=mediadir+"/black.png", 
+                parent=player.getRootNode())
+        node.setEffect(avg.NullFXNode())
+        nodes.append(node)
+    for node in nodes:
+        node.unlink(True)
+