Merged r10463:10658 from jblum/gui_guts into trunk. Trunk passes distcheck.

git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@10660 221aa14e-8319-0410-a670-987f0aec2ac5

1 files changed, 154 insertions, 0 deletions

diff --git a/gr-wxgui/src/python/histo_window.py b/gr-wxgui/src/python/histo_window.py
new file mode 100644
index 000000000..dce52ff9b
--- /dev/null
+++ b/gr-wxgui/src/python/histo_window.py
@@ -0,0 +1,154 @@
+#
+# Copyright 2009 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.
+#
+
+##################################################
+# Imports
+##################################################
+import plotter
+import common
+import wx
+import numpy
+import math
+import pubsub
+from constants import *
+from gnuradio import gr #for gr.prefs
+
+##################################################
+# Constants
+##################################################
+DEFAULT_WIN_SIZE = (600, 300)
+
+##################################################
+# histo window control panel
+##################################################
+class control_panel(wx.Panel):
+	"""
+	A control panel with wx widgits to control the plotter and histo sink.
+	"""
+
+	def __init__(self, parent):
+		"""
+		Create a new control panel.
+		@param parent the wx parent window
+		"""
+		self.parent = parent
+		wx.Panel.__init__(self, parent, style=wx.SUNKEN_BORDER)
+		control_box = wx.BoxSizer(wx.VERTICAL)
+		SIZE = (100, -1)
+		control_box.Add(common.LabelText(self, 'Options'), 0, wx.ALIGN_CENTER)
+		control_box.AddStretchSpacer()
+		#num bins
+		def num_bins_cast(num):
+			num = int(num)
+			assert num > 1
+			return num
+		num_bins_ctrl = common.TextBoxController(self, parent, NUM_BINS_KEY, cast=num_bins_cast)
+		control_box.Add(common.LabelBox(self, ' Num Bins ', num_bins_ctrl), 0, wx.EXPAND)
+		control_box.AddStretchSpacer()
+		#frame size
+		frame_size_ctrl = common.TextBoxController(self, parent, FRAME_SIZE_KEY, cast=num_bins_cast)
+		control_box.Add(common.LabelBox(self, ' Frame Size ', frame_size_ctrl), 0, wx.EXPAND)
+		control_box.AddStretchSpacer()
+		#run/stop
+		self.run_button = common.ToggleButtonController(self, parent, RUNNING_KEY, 'Stop', 'Run')
+		control_box.Add(self.run_button, 0, wx.EXPAND)
+		#set sizer
+		self.SetSizerAndFit(control_box)
+
+##################################################
+# histo window with plotter and control panel
+##################################################
+class histo_window(wx.Panel, pubsub.pubsub):
+	def __init__(
+		self,
+		parent,
+		controller,
+		size,
+		title,
+		maximum_key,
+		minimum_key,
+		num_bins_key,
+		frame_size_key,
+		msg_key,
+	):
+		pubsub.pubsub.__init__(self)
+		#setup
+		self.samples = list()
+		#proxy the keys
+		self.proxy(MAXIMUM_KEY, controller, maximum_key)
+		self.proxy(MINIMUM_KEY, controller, minimum_key)
+		self.proxy(NUM_BINS_KEY, controller, num_bins_key)
+		self.proxy(FRAME_SIZE_KEY, controller, frame_size_key)
+		self.proxy(MSG_KEY, controller, msg_key)
+		#init panel and plot
+		wx.Panel.__init__(self, parent, style=wx.SIMPLE_BORDER)
+		self.plotter = plotter.bar_plotter(self)
+		self.plotter.SetSize(wx.Size(*size))
+		self.plotter.set_title(title)
+		self.plotter.enable_point_label(True)
+		self.plotter.enable_grid_lines(False)
+		#setup the box with plot and controls
+		self.control_panel = control_panel(self)
+		main_box = wx.BoxSizer(wx.HORIZONTAL)
+		main_box.Add(self.plotter, 1, wx.EXPAND)
+		main_box.Add(self.control_panel, 0, wx.EXPAND)
+		self.SetSizerAndFit(main_box)
+		#initialize values
+		self[NUM_BINS_KEY] = self[NUM_BINS_KEY]
+		self[FRAME_SIZE_KEY] = self[FRAME_SIZE_KEY]
+		self[RUNNING_KEY] = True
+		self[X_DIVS_KEY] = 8
+		self[Y_DIVS_KEY] = 4
+		#register events
+		self.subscribe(MSG_KEY, self.handle_msg)
+		self.subscribe(X_DIVS_KEY, self.update_grid)
+		self.subscribe(Y_DIVS_KEY, self.update_grid)
+
+	def handle_msg(self, msg):
+		"""
+		Handle the message from the fft sink message queue.
+		@param msg the frame as a character array
+		"""
+		if not self[RUNNING_KEY]: return
+		#convert to floating point numbers
+		self.samples = 100*numpy.fromstring(msg, numpy.float32)[:self[NUM_BINS_KEY]] #only take first frame
+		self.plotter.set_bars(
+			bars=self.samples,
+			bar_width=0.6,
+			color_spec=(0, 0, 1),
+		)
+		self.update_grid()
+
+	def update_grid(self):
+		if not len(self.samples): return
+		#calculate the maximum y value
+		y_off = math.ceil(numpy.max(self.samples))
+		y_off = min(max(y_off, 1.0), 100.0) #between 1% and 100%
+		#update the x grid
+		self.plotter.set_x_grid(
+			self[MINIMUM_KEY], self[MAXIMUM_KEY],
+			common.get_clean_num((self[MAXIMUM_KEY] - self[MINIMUM_KEY])/self[X_DIVS_KEY]),
+		)
+		self.plotter.set_x_label('Counts')
+		#update the y grid
+		self.plotter.set_y_grid(0, y_off, y_off/self[Y_DIVS_KEY])
+		self.plotter.set_y_label('Frequency', '%')
+		self.plotter.update()