[Commit-gnuradio] [gnuradio] 11/16: grc: added param to set per-flow-graph QT-theme file

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jcorgan pushed a commit to branch master
in repository gnuradio.

commit bd97903e06da8a4f7fee8d9cd7a7644f55f46215
Author: Glenn Richardson <address@hidden>
Date:   Mon Aug 31 23:13:04 2015 -0400

    grc: added param to set per-flow-graph QT-theme file
---
 grc/blocks/options.xml     | 19 +++++++++++++++++--
 grc/gui/Param.py           | 11 +++++++++--
 grc/python/flow_graph.tmpl | 18 ++++++++++++++++++
 3 files changed, 44 insertions(+), 4 deletions(-)

diff --git a/grc/blocks/options.xml b/grc/blocks/options.xml
index 34822f1..09cc74d 100644
--- a/grc/blocks/options.xml
+++ b/grc/blocks/options.xml
@@ -163,6 +163,23 @@ part#slurp
                </option>
        </param>
        <param>
+               <name>QSS Theme</name>
+               <key>qt_qss_theme</key>
+               <value></value>
+               <type>file_open</type>
+               <hide>
+#if $generate_options() in ('qt_gui',)
+       #if $qt_qss_theme()
+               none
+       #else
+               part
+       #end if
+#else
+       all
+#end if
+</hide>
+       </param>
+       <param>
                <name>Thread-safe setters</name>
                <key>thread_safe_setters</key>
                <value></value>
@@ -218,7 +235,5 @@ To put hier blocks into the root category, enter / for the 
category.
 The Max Number of Output is the maximum number of output items allowed for any 
block \
 in the flowgraph; to disable this set the max_nouts equal to 0.\
 Use this to adjust the maximum latency a flowgraph can exhibit.
-
-
        </doc>
 </block>
diff --git a/grc/gui/Param.py b/grc/gui/Param.py
index b9436ab..ca0a8c6 100644
--- a/grc/gui/Param.py
+++ b/grc/gui/Param.py
@@ -19,7 +19,7 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 
 02110-1301, USA
 
 import Utils
 from Element import Element
-from . Constants import PARAM_FONT
+from . Constants import PARAM_FONT, GR_PREFIX
 import pygtk
 pygtk.require('2.0')
 import gtk
@@ -233,7 +233,14 @@ class FileParam(EntryParam):
         #get the paths
         file_path = self.param.is_valid() and self.param.get_evaluated() or ''
         (dirname, basename) = os.path.isfile(file_path) and 
os.path.split(file_path) or (file_path, '')
-        if not os.path.exists(dirname): dirname = os.getcwd() #fix bad paths
+        # check for qss theme default directory
+        if self.param.get_key() == 'qt_qss_theme':
+            dirname = os.path.dirname(dirname)  # trim filename
+            if not os.path.exists(dirname):
+               dirname = os.path.join(GR_PREFIX, '/share/gnuradio/themes')
+        if not os.path.exists(dirname):
+            dirname = os.getcwd()  # fix bad paths
+
         #build the dialog
         if self.param.get_type() == 'file_open':
             file_dialog = gtk.FileChooserDialog('Open a Data File...', None,
diff --git a/grc/python/flow_graph.tmpl b/grc/python/flow_graph.tmpl
index 52f4902..72891b7 100644
--- a/grc/python/flow_graph.tmpl
+++ b/grc/python/flow_graph.tmpl
@@ -53,6 +53,9 @@ if __name__ == '__main__':
 ########################################################
 ##Create Imports
 ########################################################
+#if $flow_graph.get_option('qt_qss_theme')
+#set imports = $sorted(set($imports + ["import os", "import sys"]))
+#end if
 #if any(imp.endswith("# grc-generated hier_block") for imp in $imports)
 import os
 import sys
@@ -267,6 +270,18 @@ gr.io_signaturev($(len($io_sigs)), $(len($io_sigs)), [$(', 
'.join($size_strs))])
         self.settings = Qt.QSettings("GNU Radio", "$class_name")
         self.settings.setValue("geometry", self.saveGeometry())
         event.accept()
+
+    #if $flow_graph.get_option('qt_qss_theme')
+    def setStyleSheetFromFile(self, filename):
+        try:
+            if not os.path.exists(filename):
+                filename = os.path.join(
+                    gr.prefix(), "share", "gnuradio", "themes", filename)
+            with open(filename) as ss:
+                tb.setStyleSheet('1' + ss.read())
+        except Exception as e:
+            print >> sys.stderr, e
+    #end if
 #end if
 ########################################################
 ##Create Callbacks
@@ -367,6 +382,9 @@ def main(top_block_cls=$(class_name), options=None):
     tb.start()
         #end if
     #end if
+    #if $flow_graph.get_option('qt_qss_theme')
+    tb.setStyleSheetFromFile($repr($flow_graph.get_option('qt_qss_theme')))
+    #end if
     tb.show()
 
     def quitting():