Merge branch 'master' into constell_obj

Conflicts:
	gnuradio-core/src/lib/filter/gr_pfb_clock_sync_ccf.h
	gr-audio-oss/src/Makefile.swig.gen
	gr-audio/swig/Makefile.swig.gen

19 files changed, 1034 insertions, 36 deletions

diff --git a/gr-qtgui/Makefile.am b/gr-qtgui/Makefile.am
index d53f96c1f..e794266cb 100644
--- a/gr-qtgui/Makefile.am
+++ b/gr-qtgui/Makefile.am
@@ -1,5 +1,5 @@
 #
-# Copyright 2008 Free Software Foundation, Inc.
+# Copyright 2008-2010 Free Software Foundation, Inc.
 # 
 # This file is part of GNU Radio
 # 
@@ -23,3 +23,8 @@ include $(top_srcdir)/Makefile.common
 
 SUBDIRS = src
 DIST_SUBDIRS = src
+
+if PYTHON
+SUBDIRS += grc
+DIST_SUBDIRS += grc
+endif
diff --git a/gr-qtgui/grc/.gitignore b/gr-qtgui/grc/.gitignore
new file mode 100644
index 000000000..b336cc7ce
--- /dev/null
+++ b/gr-qtgui/grc/.gitignore
@@ -0,0 +1,2 @@
+/Makefile
+/Makefile.in
diff --git a/gr-qtgui/grc/Makefile.am b/gr-qtgui/grc/Makefile.am
new file mode 100644
index 000000000..b3114268c
--- /dev/null
+++ b/gr-qtgui/grc/Makefile.am
@@ -0,0 +1,33 @@
+#
+# Copyright 2010-2011 Free Software Foundation, Inc.
+# 
+# This file is part of GNU Radio
+# 
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+# 
+# GNU Radio 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 General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+#
+
+include $(top_srcdir)/Makefile.common
+
+grcblocksdir = $(grc_blocksdir)
+
+dist_grcblocks_DATA = \
+	qtgui_check_box.xml \
+	qtgui_entry.xml \
+	qtgui_label.xml \
+	qtgui_range.xml \
+	qtgui_sink_x.xml \
+	qtgui_tab_widget.xml \
+	qtgui_chooser.xml
diff --git a/gr-qtgui/grc/qtgui_check_box.xml b/gr-qtgui/grc/qtgui_check_box.xml
new file mode 100644
index 000000000..95f4f968a
--- /dev/null
+++ b/gr-qtgui/grc/qtgui_check_box.xml
@@ -0,0 +1,83 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Variable Check Box:
+##	a gui check box form
+###################################################
+ -->
+<block>
+	<name>QT GUI Check Box</name>
+	<key>variable_qtgui_check_box</key>
+	<category>QT GUI Widgets</category>
+	<import>from PyQt4 import Qt</import>
+	<var_make>self.$(id) = $(id) = $value</var_make>
+	<make>#set $win = '_%s_check_box'%$id
+#if not $label()
+	#set $label = '"%s"'%$id
+#end if
+$win = Qt.QCheckBox($label)
+self._$(id)_choices = {True: $true, False: $false}
+self._$(id)_choices_inv = dict((v,k) for k,v in self._$(id)_choices.iteritems())
+self._$(id)_callback = lambda i: $(win).setChecked(self._$(id)_choices_inv[i])
+self._$(id)_callback(self.$id)
+$(win).stateChanged.connect(lambda i: self.set_$(id)(self._$(id)_choices[bool(i)]))
+$(gui_hint()($win))</make>
+	<callback>self.set_$(id)($value)</callback>
+	<callback>self._$(id)_callback($id)</callback>
+	<param>
+		<name>Label</name>
+		<key>label</key>
+		<value></value>
+		<type>string</type>
+		<hide>#if $label() then 'none' else 'part'#</hide>
+	</param>
+	<param>
+		<name>Type</name>
+		<key>type</key>
+		<value>int</value>
+		<type>enum</type>
+		<hide>part</hide>
+		<option><name>Float</name><key>real</key><opt>conv:float</opt></option>
+		<option><name>Integer</name><key>int</key><opt>conv:int</opt></option>
+		<option><name>String</name><key>string</key><opt>conv:str</opt></option>
+		<option><name>Boolean</name><key>bool</key><opt>conv:bool</opt></option>
+		<option><name>Any</name><key>raw</key><opt>conv:eval</opt></option>
+	</param>
+	<param>
+		<name>Default Value</name>
+		<key>value</key>
+		<value>True</value>
+		<type>$type</type>
+	</param>
+	<param>
+		<name>True</name>
+		<key>true</key>
+		<value>True</value>
+		<type>$type</type>
+	</param>
+	<param>
+		<name>False</name>
+		<key>false</key>
+		<value>False</value>
+		<type>$type</type>
+	</param>
+	<param>
+		<name>GUI Hint</name>
+		<key>gui_hint</key>
+		<value></value>
+		<type>gui_hint</type>
+		<hide>part</hide>
+	</param>
+	<check>$value in ($true, $false)</check>
+	<doc>
+This block creates a variable check box. \
+Leave the label blank to use the variable id as the label.
+
+A check box selects between two values of similar type. \
+Te values do not necessarily need to be of boolean type.
+
+The GUI hint can be used to position the widget within the application. \
+The hint is of the form [tab_id@tab_index]: [row, col, row_span, col_span]. \
+Both the tab specification and the grid position are optional.
+	</doc>
+</block>
diff --git a/gr-qtgui/grc/qtgui_chooser.xml b/gr-qtgui/grc/qtgui_chooser.xml
new file mode 100644
index 000000000..cb5090289
--- /dev/null
+++ b/gr-qtgui/grc/qtgui_chooser.xml
@@ -0,0 +1,251 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Variable Chooser:
+##	A chooser, radio buttons
+###################################################
+ -->
+<block>
+	<name>QT GUI Chooser</name>
+	<key>variable_qtgui_chooser</key>
+	<category>QT GUI Widgets</category>
+	<import>from PyQt4 import Qt</import>
+	<var_make>self.$(id) = $(id) = $value</var_make>
+	<make>#slurp
+#set $all_options = [$option0, $option1, $option2, $option3, $option4][:int($num_opts())]
+#set $all_labels = [$label0, $label1, $label2, $label3, $label4][:int($num_opts())]
+#if not $label()
+	#set $label = '"%s"'%$id
+#end if
+########################################################################
+## Create the options list
+########################################################################
+#if int($num_opts())
+self._$(id)_options = (#slurp
+	#for $ch in $all_options
+$ch, #slurp
+	#end for
+)
+#else
+self._$(id)_options = $options
+#end if
+########################################################################
+## Create the labels list
+########################################################################
+#if int($num_opts())
+self._$(id)_labels = (#slurp
+	#for i, $lbl in enumerate($all_labels)
+	#if $lbl()
+$lbl, #slurp
+	#else
+str(self._$(id)_options[$i]), #slurp
+	#end if
+	#end for
+)
+#elif $labels()
+self._$(id)_labels = $labels
+#else
+self._$(id)_labels = map(str, self._$(id)_options)
+#end if
+########################################################################
+## Create the combo box
+########################################################################
+#if $widget() == 'combo_box'
+#set $win = 'self._%s_tool_bar'%$id
+$win = Qt.QToolBar(self)
+$(win).addWidget(Qt.QLabel($label+": "))
+self._$(id)_combo_box = Qt.QComboBox()
+$(win).addWidget(self._$(id)_combo_box)
+for label in self._$(id)_labels: self._$(id)_combo_box.addItem(label)
+self._$(id)_callback = lambda i: self._$(id)_combo_box.setCurrentIndex(self._$(id)_options.index(i))
+self._$(id)_callback(self.$id)
+self._$(id)_combo_box.currentIndexChanged.connect(
+	lambda i: self.set_$(id)(self._$(id)_options[i]))
+#end if
+########################################################################
+## Create the radio buttons
+########################################################################
+#if $widget() == 'radio_buttons'
+#set $win = 'self._%s_group_box'%$id
+$win = Qt.QGroupBox($label)
+self._$(id)_box = $(orient)()
+self._$(id)_button_group = Qt.QButtonGroup()
+$(win).setLayout(self._$(id)_box)
+for i, label in enumerate(self._$(id)_labels):
+	radio_button = Qt.QRadioButton(label)
+	self._$(id)_box.addWidget(radio_button)
+	self._$(id)_button_group.addButton(radio_button, i)
+self._$(id)_callback = lambda i: self._$(id)_button_group.button(self._$(id)_options.index(i)).setChecked(True)
+self._$(id)_callback(self.$id)
+self._$(id)_button_group.buttonClicked[int].connect(
+	lambda i: self.set_$(id)(self._$(id)_options[i]))
+#end if
+$(gui_hint()($win))</make>
+	<callback>self.set_$(id)($value)</callback>
+	<callback>self._$(id)_callback($id)</callback>
+	<param>
+		<name>Label</name>
+		<key>label</key>
+		<value></value>
+		<type>string</type>
+		<hide>#if $label() then 'none' else 'part'#</hide>
+	</param>
+	<param>
+		<name>Type</name>
+		<key>type</key>
+		<value>int</value>
+		<type>enum</type>
+		<hide>part</hide>
+		<option><name>Float</name><key>real</key></option>
+		<option><name>Integer</name><key>int</key></option>
+		<option><name>String</name><key>string</key></option>
+		<option><name>Any</name><key>raw</key></option>
+	</param>
+	<param>
+		<name>Num Options</name>
+		<key>num_opts</key>
+		<value>3</value>
+		<type>enum</type>
+		<option><name>List</name><key>0</key></option>
+		<option><name>1</name><key>1</key></option>
+		<option><name>2</name><key>2</key></option>
+		<option><name>3</name><key>3</key></option>
+		<option><name>4</name><key>4</key></option>
+		<option><name>5</name><key>5</key></option>
+	</param>
+	<param>
+		<name>Default Value</name>
+		<key>value</key>
+		<value>0</value>
+		<type>$type</type>
+	</param>
+	<param>
+		<name>Options</name>
+		<key>options</key>
+		<value>[0, 1, 2]</value>
+		<type>raw</type>
+		<hide>#if int($num_opts()) then 'all' else 'none'#</hide>
+	</param>
+	<param>
+		<name>Labels</name>
+		<key>labels</key>
+		<value>[]</value>
+		<type>raw</type>
+		<hide>#if int($num_opts()) then 'all' else 'none'#</hide>
+	</param>
+	<param>
+		<name>Option 0</name>
+		<key>option0</key>
+		<value>0</value>
+		<type>$type</type>
+		<hide>#if int($num_opts()) > 0 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>Label 0</name>
+		<key>label0</key>
+		<value></value>
+		<type>string</type>
+		<hide>$((int($num_opts()) > 0) and ($label0() and 'none' or 'part') or 'all')</hide>
+	</param>
+	<param>
+		<name>Option 1</name>
+		<key>option1</key>
+		<value>1</value>
+		<type>$type</type>
+		<hide>#if int($num_opts()) > 1 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>Label 1</name>
+		<key>label1</key>
+		<value></value>
+		<type>string</type>
+		<hide>$((int($num_opts()) > 1) and ($label1() and 'none' or 'part') or 'all')</hide>
+	</param>
+	<param>
+		<name>Option 2</name>
+		<key>option2</key>
+		<value>2</value>
+		<type>$type</type>
+		<hide>#if int($num_opts()) > 2 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>Label 2</name>
+		<key>label2</key>
+		<value></value>
+		<type>string</type>
+		<hide>$((int($num_opts()) > 2) and ($label2() and 'none' or 'part') or 'all')</hide>
+	</param>
+	<param>
+		<name>Option 3</name>
+		<key>option3</key>
+		<value>3</value>
+		<type>$type</type>
+		<hide>#if int($num_opts()) > 3 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>Label 3</name>
+		<key>label3</key>
+		<value></value>
+		<type>string</type>
+		<hide>$((int($num_opts()) > 3) and ($label3() and 'none' or 'part') or 'all')</hide>
+	</param>
+	<param>
+		<name>Option 4</name>
+		<key>option4</key>
+		<value>4</value>
+		<type>$type</type>
+		<hide>#if int($num_opts()) > 4 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>Label 4</name>
+		<key>label4</key>
+		<value></value>
+		<type>string</type>
+		<hide>$((int($num_opts()) > 4) and ($label4() and 'none' or 'part') or 'all')</hide>
+	</param>
+	<param>
+		<name>Widget</name>
+		<key>widget</key>
+		<value>combo_box</value>
+		<type>enum</type>
+		<hide>part</hide>
+		<option><name>Combo Box</name><key>combo_box</key></option>
+		<option><name>Radio Buttons</name><key>radio_buttons</key></option>
+	</param>
+	<param>
+		<name>Orientation</name>
+		<key>orient</key>
+		<value>Qt.QVBoxLayout</value>
+		<type>enum</type>
+		<hide>#if $widget() == 'radio_buttons' then 'part' else 'all'#</hide>
+		<option>
+			<name>Horizontal</name>
+			<key>Qt.QHBoxLayout</key>
+		</option>
+		<option>
+			<name>Vertical</name>
+			<key>Qt.QVBoxLayout</key>
+		</option>
+	</param>
+	<param>
+		<name>GUI Hint</name>
+		<key>gui_hint</key>
+		<value></value>
+		<type>gui_hint</type>
+		<hide>part</hide>
+	</param>
+	<doc>
+This block creates a variable with enumerated options. \
+The gui widget is implemented as a combo box or radio button group. \
+Leave the label blank to use the variable id as the label.
+
+Choose the number of options available to your chooser. \
+When the label is left blank, the option will be used as the label. \
+Set the number of options to "list" to enter a single list of options and labels. \
+When the labels is an empty list, the options will be used as the label.
+
+The GUI hint can be used to position the widget within the application. \
+The hint is of the form [tab_id@tab_index]: [row, col, row_span, col_span]. \
+Both the tab specification and the grid position are optional.
+	</doc>
+</block>
diff --git a/gr-qtgui/grc/qtgui_entry.xml b/gr-qtgui/grc/qtgui_entry.xml
new file mode 100644
index 000000000..1a98402a0
--- /dev/null
+++ b/gr-qtgui/grc/qtgui_entry.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Variable Text Entry:
+##	a gui text box form
+###################################################
+ -->
+<block>
+	<name>QT GUI Entry</name>
+	<key>variable_qtgui_entry</key>
+	<category>QT GUI Widgets</category>
+	<import>from PyQt4 import Qt</import>
+	<import>from gnuradio import eng_notation</import>
+	<var_make>self.$(id) = $(id) = $value</var_make>
+	<make>#set $win = 'self._%s_tool_bar'%$id
+$win = Qt.QToolBar(self)
+#if not $label()
+	#set $label = '"%s"'%$id
+#end if
+$(win).addWidget(Qt.QLabel($label+": "))
+self._$(id)_line_edit = Qt.QLineEdit(str(self.$id))
+self._$(id)_tool_bar.addWidget(self._$(id)_line_edit)
+self._$(id)_line_edit.returnPressed.connect(
+	lambda: self.set_$(id)($(type.conv)(self._$(id)_line_edit.text().toAscii())))
+$(gui_hint()($win))</make>
+	<callback>self.set_$(id)($value)</callback>
+	<callback>self._$(id)_line_edit.setText($(type.str)($id))</callback>
+	<param>
+		<name>Label</name>
+		<key>label</key>
+		<value></value>
+		<type>string</type>
+		<hide>#if $label() then 'none' else 'part'#</hide>
+	</param>
+	<param>
+		<name>Type</name>
+		<key>type</key>
+		<value>int</value>
+		<type>enum</type>
+		<hide>part</hide>
+		<option><name>Float</name><key>real</key><opt>conv:eng_notation.str_to_num</opt><opt>str:eng_notation.num_to_str</opt></option>
+		<option><name>Integer</name><key>int</key><opt>conv:int</opt><opt>str:str</opt></option>
+		<option><name>String</name><key>string</key><opt>conv:str</opt><opt>str:str</opt></option>
+		<option><name>Boolean</name><key>bool</key><opt>conv:bool</opt><opt>str:str</opt></option>
+		<option><name>Any</name><key>raw</key><opt>conv:eval</opt><opt>str:repr</opt></option>
+	</param>
+	<param>
+		<name>Default Value</name>
+		<key>value</key>
+		<value>0</value>
+		<type>$type</type>
+	</param>
+	<param>
+		<name>GUI Hint</name>
+		<key>gui_hint</key>
+		<value></value>
+		<type>gui_hint</type>
+		<hide>part</hide>
+	</param>
+	<doc>
+This block creates a variable with a text entry box. \
+Leave the label blank to use the variable id as the label.
+
+The GUI hint can be used to position the widget within the application. \
+The hint is of the form [tab_id@tab_index]: [row, col, row_span, col_span]. \
+Both the tab specification and the grid position are optional.
+	</doc>
+</block>
diff --git a/gr-qtgui/grc/qtgui_label.xml b/gr-qtgui/grc/qtgui_label.xml
new file mode 100644
index 000000000..5049118c4
--- /dev/null
+++ b/gr-qtgui/grc/qtgui_label.xml
@@ -0,0 +1,66 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Variable Label Text:
+##	a gui static text form
+###################################################
+ -->
+<block>
+	<name>QT GUI Label</name>
+	<key>variable_qtgui_label</key>
+	<category>QT GUI Widgets</category>
+	<import>from PyQt4 import Qt</import>
+	<import>from gnuradio import eng_notation</import>
+	<var_make>self.$(id) = $(id) = $value</var_make>
+	<make>#set $win = 'self._%s_tool_bar'%$id
+$win = Qt.QToolBar(self)
+#if not $label()
+	#set $label = '"%s"'%$id
+#end if
+$(win).addWidget(Qt.QLabel($label+": "))
+self._$(id)_label = Qt.QLabel(str(self.$id))
+self._$(id)_tool_bar.addWidget(self._$(id)_label)
+$(gui_hint()($win))</make>
+	<callback>self.set_$(id)($value)</callback>
+	<callback>self._$(id)_label.setText($(type.str)($id))</callback>
+	<param>
+		<name>Label</name>
+		<key>label</key>
+		<value></value>
+		<type>string</type>
+		<hide>#if $label() then 'none' else 'part'#</hide>
+	</param>
+	<param>
+		<name>Type</name>
+		<key>type</key>
+		<value>int</value>
+		<type>enum</type>
+		<hide>part</hide>
+		<option><name>Float</name><key>real</key><opt>conv:eng_notation.str_to_num</opt><opt>str:eng_notation.num_to_str</opt></option>
+		<option><name>Integer</name><key>int</key><opt>conv:int</opt><opt>str:str</opt></option>
+		<option><name>String</name><key>string</key><opt>conv:str</opt><opt>str:str</opt></option>
+		<option><name>Boolean</name><key>bool</key><opt>conv:bool</opt><opt>str:str</opt></option>
+		<option><name>Any</name><key>raw</key><opt>conv:eval</opt><opt>str:repr</opt></option>
+	</param>
+	<param>
+		<name>Default Value</name>
+		<key>value</key>
+		<value>0</value>
+		<type>$type</type>
+	</param>
+	<param>
+		<name>GUI Hint</name>
+		<key>gui_hint</key>
+		<value></value>
+		<type>gui_hint</type>
+		<hide>part</hide>
+	</param>
+	<doc>
+This block creates a variable with a label widget for text. \
+Leave the label blank to use the variable id as the label.
+
+The GUI hint can be used to position the widget within the application. \
+The hint is of the form [tab_id@tab_index]: [row, col, row_span, col_span]. \
+Both the tab specification and the grid position are optional.
+	</doc>
+</block>
diff --git a/gr-qtgui/grc/qtgui_range.xml b/gr-qtgui/grc/qtgui_range.xml
new file mode 100644
index 000000000..6b0555f98
--- /dev/null
+++ b/gr-qtgui/grc/qtgui_range.xml
@@ -0,0 +1,211 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##Variable Range:
+##	ranged widgets like a slider or a knob
+###################################################
+ -->
+<block>
+	<name>QT GUI Range</name>
+	<key>variable_qtgui_range</key>
+	<category>QT GUI Widgets</category>
+	<import>from PyQt4 import Qt</import>
+	<import>import PyQt4.Qwt5 as Qwt</import>
+	<var_make>self.$(id) = $(id) = $value</var_make>
+	<make>#set $win = 'self._%s_layout'%$id
+#if not $label()
+	#set $label = '"%s"'%$id
+#end if
+########################################################################
+#if $widget() == "knob"
+########################################################################
+$win = Qt.QVBoxLayout()
+self._$(id)_knob = Qwt.QwtKnob()
+self._$(id)_knob.setRange($start, $stop, $step)
+self._$(id)_knob.setValue(self.$id)
+self._$(id)_knob.valueChanged.connect(self.set_$(id))
+$(win).addWidget(self._$(id)_knob)
+self._$(id)_label = Qt.QLabel($label)
+self._$(id)_label.setAlignment(Qt.Qt.AlignTop | Qt.Qt.AlignHCenter)
+$(win).addWidget(self._$(id)_label)
+#end if
+########################################################################
+#if $widget() == "thermo"
+########################################################################
+$win = Qt.QVBoxLayout()
+self._$(id)_label = Qt.QLabel($label)
+self._$(id)_thermo = Qwt.QwtThermo()
+self._$(id)_thermo.setScalePosition(Qwt.QwtThermo.$orient.scalepos)
+self._$(id)_thermo.setRange($start, $stop)
+self._$(id)_thermo.setValue(self.$id)
+self._$(id)_thermo.$(orient.minfcn)($min_len)
+#if 'horizontal' in $orient().lower()
+self._$(id)_label.setAlignment(Qt.Qt.AlignBottom | Qt.Qt.AlignHCenter)
+$(win).addWidget(self._$(id)_label)
+$(win).addWidget(self._$(id)_thermo)
+#elif 'vertical' in $orient().lower()
+self._$(id)_label.setAlignment(Qt.Qt.AlignTop)
+$(win).addWidget(self._$(id)_thermo)
+$(win).addWidget(self._$(id)_label)
+#end if
+#end if
+########################################################################
+#if $widget() == "counter"
+########################################################################
+$win = Qt.QHBoxLayout()
+$(win).addWidget(Qt.QLabel($label+": "))
+self._$(id)_counter = Qwt.QwtCounter()
+self._$(id)_counter.setRange($start, $stop, $step)
+self._$(id)_counter.setNumButtons(2)
+self._$(id)_counter.setMinimumWidth($min_len)
+self._$(id)_counter.setValue(self.$id)
+$(win).addWidget(self._$(id)_counter)
+self._$(id)_counter.valueChanged.connect(self.set_$(id))
+#end if
+########################################################################
+#if $widget() == "slider"
+########################################################################
+$win = Qt.QVBoxLayout()
+self._$(id)_label = Qt.QLabel($label)
+self._$(id)_slider = Qwt.QwtSlider(None, Qt.$orient, Qwt.QwtSlider.$orient.scalepos, Qwt.QwtSlider.BgSlot)
+self._$(id)_slider.setRange($start, $stop, $step)
+self._$(id)_slider.setValue(self.$id)
+self._$(id)_slider.$(orient.minfcn)($min_len)
+self._$(id)_slider.valueChanged.connect(self.set_$(id))
+#if 'horizontal' in $orient().lower()
+self._$(id)_label.setAlignment(Qt.Qt.AlignBottom | Qt.Qt.AlignHCenter)
+$(win).addWidget(self._$(id)_label)
+$(win).addWidget(self._$(id)_slider)
+#elif 'vertical' in $orient().lower()
+self._$(id)_label.setAlignment(Qt.Qt.AlignTop)
+$(win).addWidget(self._$(id)_slider)
+$(win).addWidget(self._$(id)_label)
+#end if
+#end if
+########################################################################
+#if $widget() == "counter_slider"
+########################################################################
+$win = Qt.QVBoxLayout()
+self._$(id)_tool_bar = Qt.QToolBar(self)
+$(win).addWidget(self._$(id)_tool_bar)
+self._$(id)_tool_bar.addWidget(Qt.QLabel($label+": "))
+self._$(id)_counter = Qwt.QwtCounter()
+self._$(id)_counter.setRange($start, $stop, $step)
+self._$(id)_counter.setNumButtons(2)
+self._$(id)_counter.setValue(self.$id)
+self._$(id)_tool_bar.addWidget(self._$(id)_counter)
+self._$(id)_counter.valueChanged.connect(self.set_$(id))
+self._$(id)_slider = Qwt.QwtSlider(None, Qt.Qt.Horizontal, Qwt.QwtSlider.BottomScale, Qwt.QwtSlider.BgSlot)
+self._$(id)_slider.setRange($start, $stop, $step)
+self._$(id)_slider.setValue(self.$id)
+self._$(id)_slider.setMinimumWidth($min_len)
+self._$(id)_slider.valueChanged.connect(self.set_$(id))
+$(win).addWidget(self._$(id)_slider)
+#end if
+$(gui_hint()($win))</make>
+	<callback>self.set_$(id)($value)</callback>
+	<callback>#if $widget() == "knob"
+self._$(id)_knob.setValue($id)
+#end if
+#if $widget() == "thermo"
+self._$(id)_thermo.setValue($id)
+#end if
+#if $widget() == "counter"
+self._$(id)_counter.setValue($id)
+#end if
+#if $widget() == "slider"
+self._$(id)_slider.setValue($id)
+#end if
+#if $widget() == "counter_slider"
+self._$(id)_counter.setValue($id)
+self._$(id)_slider.setValue($id)
+#end if</callback>
+	<param>
+		<name>Label</name>
+		<key>label</key>
+		<value></value>
+		<type>string</type>
+		<hide>#if $label() then 'none' else 'part'#</hide>
+	</param>
+	<param>
+		<name>Default Value</name>
+		<key>value</key>
+		<value>50</value>
+		<type>real</type>
+	</param>
+	<param>
+		<name>Start</name>
+		<key>start</key>
+		<value>0</value>
+		<type>real</type>
+	</param>
+	<param>
+		<name>Stop</name>
+		<key>stop</key>
+		<value>100</value>
+		<type>real</type>
+	</param>
+	<param>
+		<name>Step</name>
+		<key>step</key>
+		<value>1</value>
+		<type>real</type>
+	</param>
+	<param>
+		<name>Widget</name>
+		<key>widget</key>
+		<value>counter_slider</value>
+		<type>enum</type>
+		<hide>part</hide>
+		<option><name>Counter + Slider</name><key>counter_slider</key></option>
+		<option><name>Counter</name><key>counter</key></option>
+		<option><name>Slider</name><key>slider</key></option>
+		<option><name>Knob</name><key>knob</key></option>
+		<option><name>Thermo</name><key>thermo</key></option>
+	</param>
+	<param>
+		<name>Orientation</name>
+		<key>orient</key>
+		<value>Qt.Horizontal</value>
+		<type>enum</type>
+		<hide>#if $widget() in ("slider", "thermo") then 'part' else 'all'#</hide>
+		<option>
+			<name>Horizontal</name>
+			<key>Qt.Horizontal</key>
+			<opt>scalepos:BottomScale</opt>
+			<opt>minfcn:setMinimumWidth</opt>
+		</option>
+		<option>
+			<name>Vertical</name>
+			<key>Qt.Vertical</key>
+			<opt>scalepos:LeftScale</opt>
+			<opt>minfcn:setMinimumHeight</opt>
+		</option>
+	</param>
+	<param>
+		<name>Minimum Length</name>
+		<key>min_len</key>
+		<value>200</value>
+		<type>int</type>
+		<hide>#if $widget().split('_')[0] in ("slider", "counter", "thermo") then 'part' else 'all'#</hide>
+	</param>
+	<param>
+		<name>GUI Hint</name>
+		<key>gui_hint</key>
+		<value></value>
+		<type>gui_hint</type>
+		<hide>part</hide>
+	</param>
+	<check>$start &lt;= $value &lt;= $stop</check>
+	<check>$start &lt; $stop</check>
+	<doc>
+This block creates a variable with a slider. \
+Leave the label blank to use the variable id as the label. \
+The value must be a real number. \
+The value must be between the start and the stop.
+
+The GUI hint can be used to position the widget within the application. \
+The hint is of the form [tab_id@tab_index]: [row, col, row_span, col_span]. \
+Both the tab specification and the grid position are optional.
+	</doc>
+</block>
diff --git a/gr-qtgui/grc/qtgui_sink_x.xml b/gr-qtgui/grc/qtgui_sink_x.xml
new file mode 100644
index 000000000..7a5f5ec13
--- /dev/null
+++ b/gr-qtgui/grc/qtgui_sink_x.xml
@@ -0,0 +1,136 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##QT GUI Sink
+###################################################
+ -->
+<block>
+	<name>QT GUI Sink</name>
+	<key>qtgui_sink_x</key>
+	<category>QT GUI Widgets</category>
+	<import>from PyQt4 import Qt</import>
+	<import>from gnuradio.qtgui import qtgui</import>
+	<import>from gnuradio.gr import firdes</import>
+	<import>import sip</import>
+	<make>#set $win = 'self._%s_win'%$id
+qtgui.$(type.fcn)(
+	$fftsize, \#fftsize
+	$wintype, \#wintype
+	$fc, \#fc
+	$bw, \#bw
+	$name, \#name
+	$plotfreq, \#plotfreq
+	$plotwaterfall, \#plotwaterfall
+	$plotwaterfall3d, \#plotwaterfall3d
+	$plottime, \#plottime
+	$plotconst, \#plotconst
+)
+self._$(id)_win = sip.wrapinstance(self.$(id).pyqwidget(), Qt.QWidget)
+$(gui_hint()($win))</make>
+	<callback>set_frequency_range($fc, $bw)</callback>
+	<param>
+		<name>Type</name>
+		<key>type</key>
+		<value>complex</value>
+		<type>enum</type>
+		<option><name>Complex</name><key>complex</key><opt>fcn:sink_c</opt></option>
+		<option><name>Float</name><key>float</key><opt>fcn:sink_f</opt></option>
+	</param>
+	<param>
+		<name>Name</name>
+		<key>name</key>
+		<value>QT GUI Plot</value>
+		<type>string</type>
+	</param>
+	<param>
+		<name>FFT Size</name>
+		<key>fftsize</key>
+		<value>1024</value>
+		<type>int</type>
+	</param>
+	<param>
+		<name>Window Type</name>
+		<key>wintype</key>
+		<value>firdes.WIN_BLACKMAN_hARRIS</value>
+		<type>int</type>
+		<hide>part</hide>
+		<option>
+			<name>Blackman-harris</name>
+			<key>firdes.WIN_BLACKMAN_hARRIS</key>
+		</option>
+	</param>
+	<param>
+		<name>Center Frequency (Hz)</name>
+		<key>fc</key>
+		<value>0</value>
+		<type>real</type>
+	</param>
+	<param>
+		<name>Bandwidth (Hz)</name>
+		<key>bw</key>
+		<value>samp_rate</value>
+		<type>real</type>
+	</param>
+	<param>
+		<name>Plot Frequency</name>
+		<key>plotfreq</key>
+		<value>True</value>
+		<type>bool</type>
+		<hide>part</hide>
+		<option><name>On</name><key>True</key></option>
+		<option><name>Off</name><key>False</key></option>
+	</param>
+	<param>
+		<name>Plot Waterfall</name>
+		<key>plotwaterfall</key>
+		<value>True</value>
+		<type>bool</type>
+		<hide>part</hide>
+		<option><name>On</name><key>True</key></option>
+		<option><name>Off</name><key>False</key></option>
+	</param>
+	<param>
+		<name>Plot Waterfall 3D</name>
+		<key>plotwaterfall3d</key>
+		<value>True</value>
+		<type>bool</type>
+		<hide>part</hide>
+		<option><name>On</name><key>True</key></option>
+		<option><name>Off</name><key>False</key></option>
+	</param>
+	<param>
+		<name>Plot Time</name>
+		<key>plottime</key>
+		<value>True</value>
+		<type>bool</type>
+		<hide>part</hide>
+		<option><name>On</name><key>True</key></option>
+		<option><name>Off</name><key>False</key></option>
+	</param>
+	<param>
+		<name>Plot Const</name>
+		<key>plotconst</key>
+		<value>True</value>
+		<type>bool</type>
+		<hide>part</hide>
+		<option><name>On</name><key>True</key></option>
+		<option><name>Off</name><key>False</key></option>
+	</param>
+	<param>
+		<name>GUI Hint</name>
+		<key>gui_hint</key>
+		<value></value>
+		<type>gui_hint</type>
+		<hide>part</hide>
+	</param>
+	<sink>
+		<name>in</name>
+		<type>$type</type>
+		<nports>$num_inputs</nports>
+	</sink>
+	<doc>
+The GUI hint can be used to position the widget within the application. \
+The hint is of the form [tab_id@tab_index]: [row, col, row_span, col_span]. \
+Both the tab specification and the grid position are optional.
+	</doc>
+</block>
diff --git a/gr-qtgui/grc/qtgui_tab_widget.xml b/gr-qtgui/grc/qtgui_tab_widget.xml
new file mode 100644
index 000000000..f90054109
--- /dev/null
+++ b/gr-qtgui/grc/qtgui_tab_widget.xml
@@ -0,0 +1,84 @@
+<?xml version="1.0"?>
+<!--
+###################################################
+##WX GUI Notebook
+###################################################
+ -->
+<block>
+	<name>QT GUI Tab Widget</name>
+	<key>qtgui_tab_widget</key>
+	<category>QT GUI Widgets</category>
+	<import>from PyQt4 import Qt</import>
+	<make>#set $win = 'self.%s'%$id
+Qt.QTabWidget()
+#set $all_labels = [$label0, $label1, $label2, $label3, $label4][:int($num_tabs())]
+#for i, label in enumerate($all_labels)
+self.$(id)_widget_$(i) = Qt.QWidget()
+self.$(id)_layout_$(i) = Qt.QBoxLayout(Qt.QBoxLayout.TopToBottom, self.$(id)_widget_$(i))
+self.$(id)_grid_layout_$(i) = Qt.QGridLayout()
+self.$(id)_layout_$(i).addLayout(self.$(id)_grid_layout_$(i))
+$(win).addTab(self.$(id)_widget_$(i), $label)
+#end for
+$(gui_hint()($win))</make>
+	<param>
+		<name>Num Tabs</name>
+		<key>num_tabs</key>
+		<value>1</value>
+		<type>enum</type>
+		<option><name>1</name><key>1</key></option>
+		<option><name>2</name><key>2</key></option>
+		<option><name>3</name><key>3</key></option>
+		<option><name>4</name><key>4</key></option>
+		<option><name>5</name><key>5</key></option>
+	</param>
+	<param>
+		<name>Label 0</name>
+		<key>label0</key>
+		<value>Tab 0</value>
+		<type>string</type>
+		<hide>#if int($num_tabs()) > 0 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>Label 1</name>
+		<key>label1</key>
+		<value>Tab 1</value>
+		<type>string</type>
+		<hide>#if int($num_tabs()) > 1 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>Label 2</name>
+		<key>label2</key>
+		<value>Tab 2</value>
+		<type>string</type>
+		<hide>#if int($num_tabs()) > 2 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>Label 3</name>
+		<key>label3</key>
+		<value>Tab 3</value>
+		<type>string</type>
+		<hide>#if int($num_tabs()) > 3 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>Label 4</name>
+		<key>label4</key>
+		<value>Tab 4</value>
+		<type>string</type>
+		<hide>#if int($num_tabs()) > 4 then 'none' else 'all'#</hide>
+	</param>
+	<param>
+		<name>GUI Hint</name>
+		<key>gui_hint</key>
+		<value></value>
+		<type>gui_hint</type>
+		<hide>part</hide>
+	</param>
+	<doc>
+This block creates a tabbed widget to organize other widgets. \
+The ID of this block can be used as the tab_id in the GUI hints of other widgets.
+
+The GUI hint can be used to position the widget within the application. \
+The hint is of the form [tab_id@tab_index]: [row, col, row_span, col_span]. \
+Both the tab specification and the grid position are optional.
+	</doc>
+</block>
diff --git a/gr-qtgui/src/lib/qtgui.h b/gr-qtgui/src/lib/qtgui.h
index 6edbca12c..9831697ac 100644
--- a/gr-qtgui/src/lib/qtgui.h
+++ b/gr-qtgui/src/lib/qtgui.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2008 Free Software Foundation, Inc.
+ * Copyright 2008,2011 Free Software Foundation, Inc.
  * 
  * This file is part of GNU Radio
  * 
@@ -23,30 +23,31 @@
 #ifndef INCLUDED_QTGUI_H
 #define INCLUDED_QTGUI_H
 
+#include <gruel/thread.h>
 #include <qapplication.h>
 #include "SpectrumGUIClass.h"
 
 class qtgui_event : public QEvent
 {
 private:
-  pthread_mutex_t *pmutex;
+  gruel::mutex &d_mutex;
 
 public:
-  qtgui_event(pthread_mutex_t *mut)
-    : QEvent((QEvent::Type)(QEvent::User+101))
+  qtgui_event(gruel::mutex &mutex)
+    : QEvent((QEvent::Type)(QEvent::User+101)),
+    d_mutex(mutex)
   {
-    pmutex = mut;
+    //nop
   }
 
   void lock()
   {
-    pthread_mutex_lock(pmutex);
-    
+    d_mutex.lock();
   }
 
   void unlock()
   {
-    pthread_mutex_unlock(pmutex);
+    d_mutex.unlock();
   }
 };
 
diff --git a/gr-qtgui/src/lib/qtgui_sink_c.cc b/gr-qtgui/src/lib/qtgui_sink_c.cc
index c12c451b0..05c7b28d5 100644
--- a/gr-qtgui/src/lib/qtgui_sink_c.cc
+++ b/gr-qtgui/src/lib/qtgui_sink_c.cc
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2008,2009,2010 Free Software Foundation, Inc.
+ * Copyright 2008,2009,2010,2011 Free Software Foundation, Inc.
  * 
  * This file is part of GNU Radio
  * 
@@ -72,7 +72,6 @@ qtgui_sink_c::qtgui_sink_c (int fftsize, int wintype,
   }
 
   d_main_gui = NULL;
-  pthread_mutex_init(&d_pmutex, NULL);
   lock();
 
   // Perform fftshift operation;
@@ -107,12 +106,12 @@ qtgui_sink_c::forecast(int noutput_items, gr_vector_int &ninput_items_required)
 
 void qtgui_sink_c::lock()
 {
-  pthread_mutex_lock(&d_pmutex);
+  d_mutex.lock();
 }
 
 void qtgui_sink_c::unlock()
 {
-  pthread_mutex_unlock(&d_pmutex);
+  d_mutex.unlock();
 }
 
 
@@ -151,7 +150,7 @@ qtgui_sink_c::initialize(const bool opengl)
   set_update_time(0.1);
 
   d_object = new qtgui_obj(d_qApplication);
-  qApp->postEvent(d_object, new qtgui_event(&d_pmutex));
+  qApp->postEvent(d_object, new qtgui_event(d_mutex));
 }
 
 
@@ -289,7 +288,7 @@ qtgui_sink_c::general_work (int noutput_items,
   int j=0;
   const gr_complex *in = (const gr_complex*)input_items[0];
 
-  pthread_mutex_lock(&d_pmutex);
+  gruel::scoped_lock lock(d_mutex);
 
   // Update the FFT size from the application
   fftresize();
@@ -322,8 +321,6 @@ qtgui_sink_c::general_work (int noutput_items,
     }   
   }
 
-  pthread_mutex_unlock(&d_pmutex);
-
   consume_each(j);
   return j;
 }
diff --git a/gr-qtgui/src/lib/qtgui_sink_c.h b/gr-qtgui/src/lib/qtgui_sink_c.h
index 9aee66503..bbf9983b0 100644
--- a/gr-qtgui/src/lib/qtgui_sink_c.h
+++ b/gr-qtgui/src/lib/qtgui_sink_c.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2008,2009 Free Software Foundation, Inc.
+ * Copyright 2008,2009,2011 Free Software Foundation, Inc.
  * 
  * This file is part of GNU Radio
  * 
@@ -76,7 +76,7 @@ private:
   double d_bandwidth;
   std::string d_name;
   
-  pthread_mutex_t d_pmutex;
+  gruel::mutex d_mutex;
 
   bool d_shift;
   gri_fft_complex *d_fft;
diff --git a/gr-qtgui/src/lib/qtgui_sink_f.cc b/gr-qtgui/src/lib/qtgui_sink_f.cc
index ab4fd082d..984c2803c 100644
--- a/gr-qtgui/src/lib/qtgui_sink_f.cc
+++ b/gr-qtgui/src/lib/qtgui_sink_f.cc
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2008,2009,2010 Free Software Foundation, Inc.
+ * Copyright 2008,2009,2010,2011 Free Software Foundation, Inc.
  * 
  * This file is part of GNU Radio
  * 
@@ -72,7 +72,6 @@ qtgui_sink_f::qtgui_sink_f (int fftsize, int wintype,
   }
 
   d_main_gui = NULL;
-  pthread_mutex_init(&d_pmutex, NULL);
   lock();
 
   // Perform fftshift operation;
@@ -107,12 +106,12 @@ qtgui_sink_f::forecast(int noutput_items, gr_vector_int &ninput_items_required)
 
 void qtgui_sink_f::lock()
 {
-  pthread_mutex_lock(&d_pmutex);
+  d_mutex.lock();
 }
 
 void qtgui_sink_f::unlock()
 {
-  pthread_mutex_unlock(&d_pmutex);
+  d_mutex.unlock();
 }
 
 void
@@ -146,7 +145,7 @@ qtgui_sink_f::initialize(const bool opengl)
   set_update_time(0.1);
 
   d_object = new qtgui_obj(d_qApplication);
-  qApp->postEvent(d_object, new qtgui_event(&d_pmutex));
+  qApp->postEvent(d_object, new qtgui_event(d_mutex));
 }
 
 void
@@ -284,7 +283,7 @@ qtgui_sink_f::general_work (int noutput_items,
   int j=0;
   const float *in = (const float*)input_items[0];
 
-  pthread_mutex_lock(&d_pmutex);
+  gruel::scoped_lock lock(d_mutex);
 
   // Update the FFT size from the application
   fftresize();
@@ -317,8 +316,6 @@ qtgui_sink_f::general_work (int noutput_items,
     }   
   }
 
-  pthread_mutex_unlock(&d_pmutex);
-
   consume_each(j);
   return j;
 }
diff --git a/gr-qtgui/src/lib/qtgui_sink_f.h b/gr-qtgui/src/lib/qtgui_sink_f.h
index 0cac35d90..d80a6a198 100644
--- a/gr-qtgui/src/lib/qtgui_sink_f.h
+++ b/gr-qtgui/src/lib/qtgui_sink_f.h
@@ -1,6 +1,6 @@
 /* -*- c++ -*- */
 /*
- * Copyright 2008,2009 Free Software Foundation, Inc.
+ * Copyright 2008,2009,2011 Free Software Foundation, Inc.
  * 
  * This file is part of GNU Radio
  * 
@@ -74,7 +74,7 @@ private:
   double d_bandwidth;
   std::string d_name;
   
-  pthread_mutex_t d_pmutex;
+  gruel::mutex d_mutex;
 
   bool d_shift;
   gri_fft_complex *d_fft;
diff --git a/gr-qtgui/src/python/.gitignore b/gr-qtgui/src/python/.gitignore
index b336cc7ce..604b402c5 100644
--- a/gr-qtgui/src/python/.gitignore
+++ b/gr-qtgui/src/python/.gitignore
@@ -1,2 +1,3 @@
 /Makefile
 /Makefile.in
+/run_tests
diff --git a/gr-qtgui/src/python/Makefile.am b/gr-qtgui/src/python/Makefile.am
index 31df63a44..0953a71e5 100644
--- a/gr-qtgui/src/python/Makefile.am
+++ b/gr-qtgui/src/python/Makefile.am
@@ -21,18 +21,25 @@
 
 include $(top_srcdir)/Makefile.common
 
+TESTS = 
+EXTRA_DIST += run_tests.in \
+	qt_digital_window.ui
+
+if PYTHON
+TESTS += run_tests
+DISTCLEANFILES += run_tests
+
+qtguipythondir = $(grpythondir)/qtgui
+
 noinst_PYTHON = 		\
 	pyqt_example_f.py 	\
 	pyqt_example.py		\
 	qt_digital.py		\
 	qt_digital_window.py    \
 	usrp2_display.py	\
-	usrp_display.py
-
-EXTRA_DIST += \
-	qt_digital_window.ui
-
-qtguipythondir = $(grpythondir)/qtgui
+	usrp_display.py		\
+	qa_qtgui.py
 
-qtguipython_PYTHON = 			\
+qtguipython_PYTHON =		\
 	__init__.py
+endif
diff --git a/gr-qtgui/src/python/qa_qtgui.py b/gr-qtgui/src/python/qa_qtgui.py
new file mode 100755
index 000000000..fbf0de46e
--- /dev/null
+++ b/gr-qtgui/src/python/qa_qtgui.py
@@ -0,0 +1,46 @@
+#!/usr/bin/env python
+#
+# Copyright 2011 Free Software Foundation, Inc.
+# 
+# This file is part of GNU Radio
+# 
+# GNU Radio is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3, or (at your option)
+# any later version.
+# 
+# GNU Radio 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 General Public License for more details.
+# 
+# You should have received a copy of the GNU General Public License
+# along with GNU Radio; see the file COPYING.  If not, write to
+# the Free Software Foundation, Inc., 51 Franklin Street,
+# Boston, MA 02110-1301, USA.
+# 
+
+from gnuradio import gr, gr_unittest
+import qtgui
+from PyQt4 import QtGui, QtCore
+import sys, sip
+
+class test_qtgui(gr_unittest.TestCase):
+
+    def setUp (self):
+        self.tb = gr.top_block ()
+
+    def tearDown (self):
+        self.tb = None
+    
+    def test01 (self):
+        pass
+        # Test to make sure we can instantiate these
+        #self.qapp = QtGui.QApplication(sys.argv)
+        #self.qtsnk = qtgui.sink_c(1024, gr.firdes.WIN_BLACKMAN_hARRIS, 
+        #                          0, 1, "Test",
+        #                          True, True, False, True, True)
+        
+        
+if __name__ == '__main__':
+    gr_unittest.run(test_qtgui, "test_qtgui.xml")
diff --git a/gr-qtgui/src/python/run_tests.in b/gr-qtgui/src/python/run_tests.in
new file mode 100644
index 000000000..909194752
--- /dev/null
+++ b/gr-qtgui/src/python/run_tests.in
@@ -0,0 +1,10 @@
+#!/bin/sh
+
+# 1st parameter is absolute path to component source directory
+# 2nd parameter is absolute path to component build directory
+# 3rd parameter is path to Python QA directory
+
+@top_builddir@/run_tests.sh \
+    @abs_top_srcdir@/gr-qtgui \
+    @abs_top_builddir@/gr-qtgui \
+    @srcdir@