timeline_toolbar.py
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00001 # Software License Agreement (BSD License)
00002 #
00003 # Copyright (c) 2009, Willow Garage, Inc.
00004 # All rights reserved.
00005 #
00006 # Redistribution and use in source and binary forms, with or without
00007 # modification, are permitted provided that the following conditions
00008 # are met:
00009 #
00010 #  * Redistributions of source code must retain the above copyright
00011 #    notice, this list of conditions and the following disclaimer.
00012 #  * Redistributions in binary form must reproduce the above
00013 #    copyright notice, this list of conditions and the following
00014 #    disclaimer in the documentation and/or other materials provided
00015 #    with the distribution.
00016 #  * Neither the name of Willow Garage, Inc. nor the names of its
00017 #    contributors may be used to endorse or promote products derived
00018 #    from this software without specific prior written permission.
00019 #
00020 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00021 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00022 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
00023 # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
00024 # COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00025 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
00026 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00027 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00028 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00029 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
00030 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00031 # POSSIBILITY OF SUCH DAMAGE.
00032 
00033 import roslib.packages
00034 
00035 import wx
00036 
00037 class TimelineToolBar(wx.ToolBar):
00038     def __init__(self, parent, timeline):
00039         wx.ToolBar.__init__(self, parent, -1, style=wx.TB_TEXT)
00040 
00041         self.timeline = timeline
00042 
00043         self._state = None
00044 
00045         self._setup()
00046 
00047     def _setup(self):
00048         # If state of toolbar hasn't changed, don't recreate the tools
00049         new_state = TimelineToolBarState(self.timeline)
00050         if new_state == self._state:
00051             return
00052         
00053         self._state = new_state
00054 
00055         self.ClearTools()
00056         
00057         icons_dir = roslib.packages.get_pkg_dir('rxbag') + '/icons/'
00058         
00059         start_icon       = wx.Bitmap(icons_dir + 'start.png')
00060         rewind_icon      = wx.Bitmap(icons_dir + 'rewind.png')
00061         play_icon        = wx.Bitmap(icons_dir + 'play.png')
00062         fastforward_icon = wx.Bitmap(icons_dir + 'fastforward.png')
00063         end_icon         = wx.Bitmap(icons_dir + 'end.png')
00064         stop_icon        = wx.Bitmap(icons_dir + 'stop.png')
00065 
00066         if self.timeline._play_speed > 1.0:       
00067             fastforward_icon = wx.Bitmap(icons_dir + 'fastforward_active.png')
00068         elif self.timeline._play_speed > 0.0:       
00069             play_icon        = wx.Bitmap(icons_dir + 'play_active.png')
00070         elif self.timeline._play_speed == 0.0:
00071             stop_icon        = wx.Bitmap(icons_dir + 'stop_active.png')
00072         elif self.timeline._play_speed < 0.0:
00073             rewind_icon      = wx.Bitmap(icons_dir + 'rewind_active.png')
00074 
00075         idle_renderers = len(self.timeline._rendered_topics) < len(self.timeline.topics)
00076         if idle_renderers:
00077             thumbnails_icon = wx.Bitmap(icons_dir + 'thumbnails.png')
00078         else:
00079             thumbnails_icon = wx.Bitmap(icons_dir + 'thumbnails_off.png')           
00080 
00081         # Create the tools
00082 
00083         start_tool       = self.AddLabelTool(wx.ID_ANY, '', start_icon,       shortHelp='Start (Home)',           longHelp='Move playhead to start of timeline')
00084         rewind_tool      = self.AddLabelTool(wx.ID_ANY, '', rewind_icon,      shortHelp='Rewind (Numpad -)',      longHelp='Rewind')
00085         play_tool        = self.AddLabelTool(wx.ID_ANY, '', play_icon,        shortHelp='Play (Space)',           longHelp='Play')
00086         fastforward_tool = self.AddLabelTool(wx.ID_ANY, '', fastforward_icon, shortHelp='Fastforward (Numpad +)', longHelp='Fastforward')
00087         end_tool         = self.AddLabelTool(wx.ID_ANY, '', end_icon,         shortHelp='End (End)',              longHelp='Move playhead to end of timeline')
00088         stop_tool        = self.AddLabelTool(wx.ID_ANY, '', stop_icon,        shortHelp='Stop (Space)',           longHelp='Stop')
00089         if self.timeline._recorder:
00090             if self.timeline._recorder.paused:
00091                 record_icon = 'record_inactive.png'
00092             else:
00093                 record_icon = 'record.png'
00094             record_tool = self.AddLabelTool(wx.ID_ANY, '', wx.Bitmap(icons_dir + record_icon), shortHelp='Record (Pause)', longHelp='Toggle recording')
00095         self.AddSeparator()
00096         zoom_in_tool     = self.AddLabelTool(wx.ID_ANY, '', wx.Bitmap(icons_dir + 'zoom_in.png'),  shortHelp='Zoom in (Page Up)',    longHelp='Zoom in timeline')
00097         zoom_out_tool    = self.AddLabelTool(wx.ID_ANY, '', wx.Bitmap(icons_dir + 'zoom_out.png'), shortHelp='Zoom out (Page Down)', longHelp='Zoom out timeline')
00098         zoom_tool        = self.AddLabelTool(wx.ID_ANY, '', wx.Bitmap(icons_dir + 'zoom.png'),     shortHelp='Reset zoom', longHelp='View entire timeline')
00099         self.AddSeparator()
00100         thumbnails_tool  = self.AddLabelTool(wx.ID_ANY, '', thumbnails_icon, shortHelp='Thumbnails', longHelp='Toggle thumbnails')
00101 
00102         # Bind tools to events
00103 
00104         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.navigate_start(),       start_tool)
00105         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.navigate_rewind(),      rewind_tool)
00106         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.navigate_play(),        play_tool)       
00107         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.navigate_fastforward(), fastforward_tool)       
00108         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.navigate_end(),         end_tool)
00109         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.navigate_stop(),        stop_tool)
00110         if self.timeline._recorder:
00111             self.Bind(wx.EVT_TOOL, lambda e: self.timeline.toggle_recording(), record_tool)
00112         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.zoom_in(),              zoom_in_tool)
00113         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.zoom_out(),             zoom_out_tool)
00114         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.reset_zoom(),           zoom_tool)
00115         self.Bind(wx.EVT_TOOL, lambda e: self.timeline.toggle_renderers(),     thumbnails_tool)
00116 
00117         # Set the enabled flag
00118 
00119         if self.timeline._stamp_left is None:
00120             for tool in [start_tool, rewind_tool, play_tool, fastforward_tool, end_tool, stop_tool, zoom_in_tool, zoom_out_tool, zoom_tool, thumbnails_tool]:
00121                 self.EnableTool(tool.Id, False)
00122         else:
00123             self.EnableTool(zoom_in_tool.Id,  self.timeline.can_zoom_in())
00124             self.EnableTool(zoom_out_tool.Id, self.timeline.can_zoom_out())
00125 
00126         # Realize the toolbar
00127 
00128         self.Realize()
00129 
00130 class TimelineToolBarState(object):
00131     def __init__(self, timeline):
00132         self._fastforward_active = timeline._play_speed > 1.0
00133         self._play_active        = timeline._play_speed > 0.0
00134         self._stop_active        = timeline._play_speed == 0.0
00135         self._rewind_active      = timeline._play_speed < 0.0
00136         self._idle_renderers     = len(timeline._rendered_topics) < len(timeline.topics)
00137         self._recorder_visible   = timeline._recorder is not None
00138         self._recorder_paused    = timeline._recorder is not None and timeline._recorder.paused
00139         self._timeline_visible   = timeline._stamp_left is not None
00140         self._can_zoom_in        = timeline._stamp_left is not None and timeline.can_zoom_in()
00141         self._can_zoom_out       = timeline._stamp_left is not None and timeline.can_zoom_out()
00142 
00143     def __eq__(self, other):
00144         if other is None:
00145             return False
00146         
00147         return self._fastforward_active == other._fastforward_active \
00148            and self._play_active        == other._play_active        \
00149            and self._stop_active        == other._stop_active        \
00150            and self._rewind_active      == other._rewind_active      \
00151            and self._idle_renderers     == other._idle_renderers     \
00152            and self._recorder_visible   == other._recorder_visible   \
00153            and self._recorder_paused    == other._recorder_paused    \
00154            and self._timeline_visible   == other._timeline_visible   \
00155            and self._can_zoom_in        == other._can_zoom_in        \
00156            and self._can_zoom_out       == other._can_zoom_out


rxbag
Author(s): Tim Field
autogenerated on Mon Oct 6 2014 07:26:07