runsnake.py

    #! /usr/bin/env python
"""The main script for the RunSnakeRun profile viewer"""
import wx, sys, os, logging, traceback
import ConfigParser
try:
    from wx.py import editor, editwindow
except ImportError, err:
    editor = None
from gettext import gettext as _
import pstats
from squaremap import squaremap
from runsnakerun import pstatsloader,pstatsadapter, meliaeloader, meliaeadapter
from runsnakerun import listviews
from runsnakerun import homedirectory

if sys.platform == 'win32':
    windows = True
else:
    windows = False

log = logging.getLogger(__name__)

ID_OPEN = wx.NewId()
ID_OPEN_MEMORY = wx.NewId()
ID_EXIT = wx.NewId()
ID_PACKAGE_VIEW = wx.NewId()
ID_PERCENTAGE_VIEW = wx.NewId()
ID_ROOT_VIEW = wx.NewId()
ID_BACK_VIEW = wx.NewId()
ID_UP_VIEW = wx.NewId()
ID_DEEPER_VIEW = wx.NewId()
ID_SHALLOWER_VIEW = wx.NewId()
ID_MORE_SQUARE = wx.NewId()

PROFILE_VIEW_COLUMNS = [
    listviews.ColumnDefinition(
        name = _('Name'),
        attribute = 'name',
        defaultOrder = True,
        targetWidth = 50,
    ),
    listviews.ColumnDefinition(
        name = _('Calls'),
        attribute = 'calls',
        defaultOrder = False,
        targetWidth = 50,
    ),
    listviews.ColumnDefinition(
        name = _('RCalls'),
        attribute = 'recursive',
        defaultOrder = False,
        targetWidth = 40,
    ),
    listviews.ColumnDefinition(
        name = _('Local'),
        attribute = 'local',
        format = '%0.5f',
        defaultOrder = False,
        percentPossible = True,
        targetWidth = 50,
    ),
    listviews.ColumnDefinition(
        name = _('/Call'),
        attribute = 'localPer',
        defaultOrder = False,
        format = '%0.5f',
        targetWidth = 50,
    ),
    listviews.ColumnDefinition(
        name = _('Cum'),
        attribute = 'cummulative',
        format = '%0.5f',
        percentPossible = True,
        targetWidth = 50,
        defaultOrder = False,
        sortDefault = True,
    ),
    listviews.ColumnDefinition(
        name = _('/Call'),
        attribute = 'cummulativePer',
        format = '%0.5f',
        defaultOrder = False,
        targetWidth = 50,
    ),
    listviews.ColumnDefinition(
        name = _('File'),
        attribute = 'filename',
        sortOn = ('filename', 'lineno', 'directory',),
        defaultOrder = True,
        targetWidth = 70,
    ),
    listviews.ColumnDefinition(
        name = _('Line'),
        attribute = 'lineno',
        sortOn = ('filename', 'lineno', 'directory'),
        defaultOrder = True,
        targetWidth = 30,
    ),
    listviews.ColumnDefinition(
        name = _('Directory'),
        attribute = 'directory',
        sortOn = ('directory', 'filename', 'lineno'),
        defaultOrder = True,
        targetWidth = 90,
    ),
]

MAX_NAME_LEN = 64

def mem_name( x ):
    if x.get('name'):
        return x['name']
    value = x.get('value')
    if value:
        if isinstance(value,(str,unicode)) and len(value) > MAX_NAME_LEN:
            return value[:MAX_NAME_LEN-3]+'...'
        else:
            return value 
    return ''

MEMORY_VIEW_COLUMNS = [
    listviews.DictColumn(
        name = _('Type'),
        attribute = 'type',
        targetWidth = 20,
        defaultOrder = True,
    ),
    listviews.DictColumn(
        name = _('Name'),
        attribute = 'name',
        targetWidth = 20,
        getter = mem_name,
        defaultOrder = True,
    ),
    listviews.DictColumn(
        name = _('Cum'),
        attribute = 'totsize',
        targetWidth = 5,
        defaultOrder = False,
        format = '%0.1f',
        percentPossible = True,
        sortDefault = True,
    ),
    listviews.DictColumn(
        name = _('Local'),
        attribute = 'size',
        defaultOrder = False,
        format = '%0.1f',
        percentPossible = True,
        targetWidth = 5,
    ),
    listviews.DictColumn(
        name = _('Children'),
        attribute = 'rsize',
        format = '%0.1f',
        percentPossible = True,
        defaultOrder = False,
        targetWidth = 5,
    ),
    listviews.DictColumn(
        name = _('/Refs'),
        attribute = 'parents',
        defaultOrder = False,
        targetWidth = 4,
        getter = lambda x: len(x.get('parents',())),
    ),
    listviews.DictColumn(
        name = _('Refs/'),
        attribute = 'children',
        defaultOrder = False,
        targetWidth = 4,
        getter = lambda x: len(x.get('children',())),
    ),
]


class MainFrame(wx.Frame):
    """The root frame for the display of a single data-set"""
    loader = None
    percentageView = False
    directoryView = False
    memoryView = False
    historyIndex = -1
    activated_node = None
    selected_node = None
    TBFLAGS = (
        wx.TB_HORIZONTAL
        #| wx.NO_BORDER
        | wx.TB_FLAT
    )

    def __init__(
        self, parent=None, id=-1,
        title=_("Run Snake Run"),
        pos=wx.DefaultPosition,
        size=wx.DefaultSize,
        style=wx.DEFAULT_FRAME_STYLE|wx.CLIP_CHILDREN,
        name= _("RunSnakeRun"),
        config_parser=None,
    ):
        """Initialise the Frame"""
        wx.Frame.__init__(self, parent, id, title, pos, size, style, name)
        # TODO: toolbar for back, up, root, directory-view, percentage view
        self.adapter = pstatsadapter.PStatsAdapter()
        self.CreateControls(config_parser)
        self.history = [] # set of (activated_node, selected_node) pairs...
        icon = self.LoadRSRIcon()
        if icon:
            self.SetIcon( icon )

    def CreateControls(self, config_parser):
        """Create our sub-controls"""
        self.CreateMenuBar()
        self.SetupToolBar()
        self.CreateStatusBar()
        self.leftSplitter = wx.SplitterWindow(
            self
        )
        self.rightSplitter = wx.SplitterWindow(
            self.leftSplitter
        )
        self.listControl = listviews.DataView(
            self.leftSplitter,
            columns = PROFILE_VIEW_COLUMNS,
        )
        self.squareMap = squaremap.SquareMap(
            self.rightSplitter,
            padding = 6,
            labels = True,
            adapter = self.adapter,
            square_style = True,
        )
        self.tabs = wx.Notebook(
            self.rightSplitter,
        )

        self.CreateSourceWindow(self.tabs)
        
        self.calleeListControl = listviews.DataView(
            self.tabs,
            columns = PROFILE_VIEW_COLUMNS,
        )
        self.allCalleeListControl = listviews.DataView(
            self.tabs,
            columns = PROFILE_VIEW_COLUMNS,
        )
        self.allCallerListControl = listviews.DataView(
            self.tabs,
            columns = PROFILE_VIEW_COLUMNS,
        )
        self.callerListControl = listviews.DataView(
            self.tabs,
            columns = PROFILE_VIEW_COLUMNS,
        )
        self.ProfileListControls = [
            self.listControl,
            self.calleeListControl,
            self.allCalleeListControl,
            self.callerListControl,
            self.allCallerListControl,
        ]
        self.tabs.AddPage(self.calleeListControl, _('Callees'), True)
        self.tabs.AddPage(self.allCalleeListControl, _('All Callees'), False)
        self.tabs.AddPage(self.callerListControl, _('Callers'), False)
        self.tabs.AddPage(self.allCallerListControl, _('All Callers'), False)
        if editor:
            self.tabs.AddPage(self.sourceCodeControl, _('Source Code'), False)
        self.rightSplitter.SetSashSize(10)
        # calculate size as proportional value for initial display...
        self.LoadState( config_parser )
        width, height = self.GetSizeTuple()
        rightsplit = 2 * (height // 3)
        leftsplit = width // 3
        self.rightSplitter.SplitHorizontally(self.squareMap, self.tabs,
                                             rightsplit)
        self.leftSplitter.SplitVertically(self.listControl, self.rightSplitter,
                                          leftsplit)
        squaremap.EVT_SQUARE_HIGHLIGHTED(self.squareMap,
                                         self.OnSquareHighlightedMap)
        squaremap.EVT_SQUARE_SELECTED(self.listControl,
                                      self.OnSquareSelectedList)
        squaremap.EVT_SQUARE_SELECTED(self.squareMap, self.OnSquareSelectedMap)
        squaremap.EVT_SQUARE_ACTIVATED(self.squareMap, self.OnNodeActivated)
        for control in self.ProfileListControls:
            squaremap.EVT_SQUARE_ACTIVATED(control, self.OnNodeActivated)
            squaremap.EVT_SQUARE_HIGHLIGHTED(control,
                                             self.OnSquareHighlightedList)
        self.moreSquareViewItem.Check(self.squareMap.square_style)
        
    def CreateMenuBar(self):
        """Create our menu-bar for triggering operations"""
        menubar = wx.MenuBar()
        menu = wx.Menu()
        menu.Append(ID_OPEN, _('&Open Profile'), _('Open a cProfile file'))
        menu.Append(ID_OPEN_MEMORY, _('Open &Memory'), _('Open a Meliae memory-dump file'))
        menu.AppendSeparator()
        menu.Append(ID_EXIT, _('&Close'), _('Close this RunSnakeRun window'))
        menubar.Append(menu, _('&File'))
        menu = wx.Menu()
        self.packageMenuItem = menu.AppendCheckItem(
            ID_PACKAGE_VIEW, _('&File View'),
            _('View time spent by package/module')
        )
        self.percentageMenuItem = menu.AppendCheckItem(
            ID_PERCENTAGE_VIEW, _('&Percentage View'),
            _('View time spent as percent of overall time')
        )
        self.rootViewItem = menu.Append(
            ID_ROOT_VIEW, _('&Root View (Home)'),
            _('View the root of the tree')
        )
        self.backViewItem = menu.Append(
            ID_BACK_VIEW, _('&Back'), _('Go back in your viewing history')
        )
        self.upViewItem = menu.Append(
            ID_UP_VIEW, _('&Up'),
            _('Go "up" to the parent of this node with the largest cummulative total')
        )
        self.moreSquareViewItem = menu.AppendCheckItem(
            ID_MORE_SQUARE, _('&Hierarchic Squares'),
            _('Toggle hierarchic squares in the square-map view')
        )

        # This stuff isn't really all that useful for profiling,
        # it's more about how to generate graphics to describe profiling...
#        self.deeperViewItem = menu.Append(
#            ID_DEEPER_VIEW, _('&Deeper'), _('View deeper squaremap views')
#        )
#        self.shallowerViewItem = menu.Append(
#            ID_SHALLOWER_VIEW, _('&Shallower'), _('View shallower squaremap views')
#        )
#        wx.ToolTip.Enable(True)
        menubar.Append(menu, _('&View'))
        self.SetMenuBar(menubar)

        wx.EVT_MENU(self, ID_EXIT, lambda evt: self.Close(True))
        wx.EVT_MENU(self, ID_OPEN, self.OnOpenFile)
        wx.EVT_MENU(self, ID_OPEN_MEMORY, self.OnOpenMemory)
        wx.EVT_MENU(self, ID_PACKAGE_VIEW, self.OnPackageView)
        wx.EVT_MENU(self, ID_PERCENTAGE_VIEW, self.OnPercentageView)
        wx.EVT_MENU(self, ID_UP_VIEW, self.OnUpView)
        wx.EVT_MENU(self, ID_DEEPER_VIEW, self.OnDeeperView)
        wx.EVT_MENU(self, ID_SHALLOWER_VIEW, self.OnShallowerView)
        wx.EVT_MENU(self, ID_ROOT_VIEW, self.OnRootView)
        wx.EVT_MENU(self, ID_BACK_VIEW, self.OnBackView)
        wx.EVT_MENU(self, ID_MORE_SQUARE, self.OnMoreSquareToggle)

    def LoadRSRIcon( self ):
        try:
            from runsnakerun.resources import rsricon_png
            return getIcon( rsricon_png.data )
        except Exception, err:
            return None

    sourceCodeControl = None
    def CreateSourceWindow(self, tabs):
        """Create our source-view window for tabs"""
        if editor and self.sourceCodeControl is None:
            self.sourceCodeControl = wx.py.editwindow.EditWindow(
                self.tabs, -1
            )
            self.sourceCodeControl.SetText(u"")
            self.sourceFileShown = None
            self.sourceCodeControl.setDisplayLineNumbers(True)

    def SetupToolBar(self):
        """Create the toolbar for common actions"""
        tb = self.CreateToolBar(self.TBFLAGS)
        tsize = (24, 24)
        tb.ToolBitmapSize = tsize
        open_bmp = wx.ArtProvider.GetBitmap(wx.ART_FILE_OPEN, wx.ART_TOOLBAR,
                                            tsize)
        tb.AddLabelTool(ID_OPEN, "Open", open_bmp, shortHelp="Open",
                        longHelp="Open a (c)Profile trace file")
        tb.AddSeparator()
#        self.Bind(wx.EVT_TOOL, self.OnOpenFile, id=ID_OPEN)
        self.rootViewTool = tb.AddLabelTool(
            ID_ROOT_VIEW, _("Root View"),
            wx.ArtProvider.GetBitmap(wx.ART_GO_HOME, wx.ART_TOOLBAR, tsize),
            shortHelp=_("Display the root of the current view tree (home view)")
        )
        self.rootViewTool = tb.AddLabelTool(
            ID_BACK_VIEW, _("Back"),
            wx.ArtProvider.GetBitmap(wx.ART_GO_BACK, wx.ART_TOOLBAR, tsize),
            shortHelp=_("Back to the previously activated node in the call tree")
        )
        self.upViewTool = tb.AddLabelTool(
            ID_UP_VIEW, _("Up"),
            wx.ArtProvider.GetBitmap(wx.ART_GO_UP, wx.ART_TOOLBAR, tsize),
            shortHelp=_("Go one level up the call tree (highest-percentage parent)")
        )
        tb.AddSeparator()
        # TODO: figure out why the control is sizing the label incorrectly on Linux
        self.percentageViewTool = wx.CheckBox(tb, -1, _("Percent    "))
        self.percentageViewTool.SetToolTip(wx.ToolTip(
            _("Toggle display of percentages in list views")))
        tb.AddControl(self.percentageViewTool)
        wx.EVT_CHECKBOX(self.percentageViewTool,
                        self.percentageViewTool.GetId(), self.OnPercentageView)

        self.packageViewTool = wx.CheckBox(tb, -1, _("File View    "))
        self.packageViewTool.SetToolTip(wx.ToolTip(
            _("Switch between call-hierarchy and package/module/function hierarchy")))
        tb.AddControl(self.packageViewTool)
        wx.EVT_CHECKBOX(self.packageViewTool, self.packageViewTool.GetId(),
                        self.OnPackageView)
        tb.Realize()

    def OnOpenFile(self, event):
        """Request to open a new profile file"""
        dialog = wx.FileDialog(self, style=wx.OPEN|wx.FD_MULTIPLE)
        if dialog.ShowModal() == wx.ID_OK:
            paths = dialog.GetPaths()
            if self.loader:
                # we've already got a displayed data-set, open new window...
                frame = MainFrame()
                frame.Show(True)
                frame.load(*paths)
            else:
                self.load(*paths)
    def OnOpenMemory(self, event):
        """Request to open a new profile file"""
        dialog = wx.FileDialog(self, style=wx.OPEN)
        if dialog.ShowModal() == wx.ID_OK:
            path = dialog.GetPath()
            if self.loader:
                # we've already got a displayed data-set, open new window...
                frame = MainFrame()
                frame.Show(True)
                frame.load_memory(path)
            else:
                self.load_memory(path)

    def OnShallowerView(self, event):
        if not self.squareMap.max_depth:
            new_depth = self.squareMap.max_depth_seen or 0 - 5
        else:
            new_depth = self.squareMap.max_depth - 5
        self.squareMap.max_depth = max((1, new_depth))
        self.squareMap.Refresh()

    def OnDeeperView(self, event):
        if not self.squareMap.max_depth:
            new_depth = 5
        else:
            new_depth = self.squareMap.max_depth + 5
        self.squareMap.max_depth = max((self.squareMap.max_depth_seen or 0,
                                        new_depth))
        self.squareMap.Refresh()

    def OnPackageView(self, event):
        self.SetPackageView(not self.directoryView)

    def SetPackageView(self, directoryView):
        """Set whether to use directory/package based view"""
        self.directoryView = not self.directoryView
        self.packageMenuItem.Check(self.directoryView)
        self.packageViewTool.SetValue(self.directoryView)
        if self.loader:
            self.SetModel(self.loader)
        self.RecordHistory()

    def OnPercentageView(self, event):
        """Handle percentage-view event from menu/toolbar"""
        self.SetPercentageView(not self.percentageView)

    def SetPercentageView(self, percentageView):
        """Set whether to display percentage or absolute values"""
        self.percentageView = percentageView
        self.percentageMenuItem.Check(self.percentageView)
        self.percentageViewTool.SetValue(self.percentageView)
        total = self.loader.tree.cummulative
        for control in self.ProfileListControls:
            control.SetPercentage(self.percentageView, total)
        self.adapter.SetPercentage(self.percentageView, total)

    def OnUpView(self, event):
        """Request to move up the hierarchy to highest-weight parent"""
        node = self.activated_node
        if node:
            selected_parent = None
            if self.memoryView:
                parents = self.adapter.parents(node)
                if node['type'] == 'type':
                    module = ".".join( node['name'].split( '.' )[:-1] )
                    if module:
                        for mod in parents:
                            if mod['type'] == 'module' and mod['name'] == module:
                                selected_parent = mod 
            else:
                if self.directoryView:
                    tree = pstatsloader.TREE_FILES
                else:
                    tree = pstatsloader.TREE_CALLS
                parents = [
                    parent for parent in
                    self.adapter.parents(node)
                    if getattr(parent, 'tree', pstatsloader.TREE_CALLS) == tree
                ]
            if parents:
                if not selected_parent:
                    parents.sort(lambda a, b: cmp(self.adapter.value(node, a),
                                                  self.adapter.value(node, b)))
                    selected_parent = parents[-1]
                class event:
                    node = selected_parent
                self.OnNodeActivated(event)
            else:
                self.SetStatusText(_('No parents for the currently selected node: %(node_name)s')
                                   % dict(node_name=self.adapter.label(node)))
        else:
            self.SetStatusText(_('No currently selected node'))

    def OnBackView(self, event):
        """Request to move backward in the history"""
        self.historyIndex -= 1
        try:
            self.RestoreHistory(self.history[self.historyIndex])
        except IndexError, err:
            self.SetStatusText(_('No further history available'))

    def OnRootView(self, event):
        """Reset view to the root of the tree"""
        self.adapter, tree, rows = self.RootNode()
        self.squareMap.SetModel(tree, self.adapter)
        self.RecordHistory()

    def OnNodeActivated(self, event):
        """Double-click or enter on a node in some control..."""
        self.activated_node = self.selected_node = event.node
        self.squareMap.SetModel(event.node, self.adapter)
        self.squareMap.SetSelected( event.node )
        if editor:
            if self.SourceShowFile(event.node):
                if hasattr(event.node,'lineno'):
                    self.sourceCodeControl.GotoLine(event.node.lineno)
        self.RecordHistory()

    def SourceShowFile(self, node):
        """Show the given file in the source-code view (attempt it anyway)"""
        filename = self.adapter.filename( node )
        if filename and self.sourceFileShown != filename:
            try:
                data = open(filename).read()
            except Exception, err:
                # TODO: load from zips/eggs? What about .pyc issues?
                return None
            else:
                #self.sourceCodeControl.setText(data)
                self.sourceCodeControl.ClearAll()
                self.sourceCodeControl.AppendText( data )
        return filename

    def OnSquareHighlightedMap(self, event):
        self.SetStatusText(self.adapter.label(event.node))
        self.listControl.SetIndicated(event.node)
        text = self.squareMap.adapter.label(event.node)
        self.squareMap.SetToolTipString(text)
        self.SetStatusText(text)

    def OnSquareHighlightedList(self, event):
        self.SetStatusText(self.adapter.label(event.node))
        self.squareMap.SetHighlight(event.node, propagate=False)

    def OnSquareSelectedList(self, event):
        self.SetStatusText(self.adapter.label(event.node))
        self.squareMap.SetSelected(event.node)
        self.OnSquareSelected(event)
        self.RecordHistory()

    def OnSquareSelectedMap(self, event):
        self.listControl.SetSelected(event.node)
        self.OnSquareSelected(event)
        self.RecordHistory()

    def OnSquareSelected(self, event):
        """Update all views to show selection children/parents"""
        self.selected_node = event.node
        self.calleeListControl.integrateRecords(self.adapter.children( event.node) )
        self.callerListControl.integrateRecords(self.adapter.parents( event.node) )
        #self.allCalleeListControl.integrateRecords(event.node.descendants())
        #self.allCallerListControl.integrateRecords(event.node.ancestors())
    
    def OnMoreSquareToggle( self, event ):
        """Toggle the more-square view (better looking, but more likely to filter records)"""
        self.squareMap.square_style = not self.squareMap.square_style
        self.squareMap.Refresh()
        self.moreSquareViewItem.Check(self.squareMap.square_style)

    restoringHistory = False

    def RecordHistory(self):
        """Add the given node to the history-set"""
        if not self.restoringHistory:
            record = self.activated_node
            if self.historyIndex < -1:
                try:
                    del self.history[self.historyIndex+1:]
                except AttributeError, err:
                    pass
            if (not self.history) or record != self.history[-1]:
                self.history.append(record)
            del self.history[:-200]
            self.historyIndex = -1

    def RestoreHistory(self, record):
        self.restoringHistory = True
        try:
            activated = record
            class activated_event:
                node = activated

            if activated:
                self.OnNodeActivated(activated_event)
                self.squareMap.SetSelected(activated_event.node)
                self.listControl.SetSelected(activated_event.node)
        finally:
            self.restoringHistory = False

    def load(self, *filenames):
        """Load our hotshot dataset (iteratively)"""
        try:
            self.SetModel(pstatsloader.PStatsLoader(*filenames))
            self.SetTitle(_("Run Snake Run: %(filenames)s")
                          % {'filenames': ', '.join(filenames)[:120]})
        except (IOError, OSError, ValueError,MemoryError), err:
            self.SetStatusText(
                _('Failure during load of %(filenames)s: %(err)s'
            ) % dict(
                filenames=" ".join([repr(x) for x in filenames]),
                err=err
            ))
    def load_memory(self, filename ):
        self.memoryView = True
        for view in self.ProfileListControls:
            view.SetColumns( MEMORY_VIEW_COLUMNS )
        self.SetModel( meliaeloader.load( filename ) )

    def SetModel(self, loader):
        """Set our overall model (a loader object) and populate sub-controls"""
        self.loader = loader
        self.adapter, tree, rows = self.RootNode()
        self.listControl.integrateRecords(rows.values())
        self.activated_node = tree
        self.squareMap.SetModel(tree, self.adapter)
        self.RecordHistory()

    def RootNode(self):
        """Return our current root node and appropriate adapter for it"""
        if self.memoryView:
            adapter = meliaeadapter.MeliaeAdapter()
            tree,rows = self.loader 
        else:
            if self.directoryView:
                adapter = pstatsadapter.DirectoryViewAdapter()
                tree = self.loader.location_tree
                rows = self.loader.location_rows
            else:
                adapter = pstatsadapter.PStatsAdapter()
                tree = self.loader.tree
                rows = self.loader.rows
            adapter.SetPercentage(self.percentageView, self.loader.tree.cummulative)
        return adapter, tree, rows
    
    def SaveState( self, config_parser ):
        """Retrieve window state to be restored on the next run..."""
        if not config_parser.has_section( 'window' ):
            config_parser.add_section( 'window' )
        if self.IsMaximized():
            config_parser.set( 'window', 'maximized', str(True))
        else:
            config_parser.set( 'window', 'maximized', str(False))
        size = self.GetSizeTuple()
        position = self.GetPositionTuple()
        config_parser.set( 'window', 'width', str(size[0]) )
        config_parser.set( 'window', 'height', str(size[1]) )
        config_parser.set( 'window', 'x', str(position[0]) )
        config_parser.set( 'window', 'y', str(position[1]) )
        return config_parser
    def LoadState( self, config_parser ):
        """Set our window state from the given config_parser instance"""
        if (
            not config_parser.has_section( 'window' ) or (
                config_parser.has_option( 'window','maximized' ) and 
                config_parser.getboolean( 'window', 'maximized' )
            )
        ):
            self.Maximize(True)
        try:
            width,height,x,y = [
                config_parser.getint( 'window',key )
                for key in ['width','height','x','y']
            ]
            self.SetPosition( (x,y))
            self.SetSize( (width,height))
        except ConfigParser.NoSectionError, err:
            # the file isn't written yet, so don't even warn...
            pass
        except Exception, err:
            # this is just convenience, if it breaks in *any* way, ignore it...
            log.error(
                "Unable to load window preferences, ignoring: %s", traceback.format_exc()
            )
        self.config = config_parser
        wx.EVT_CLOSE( self, self.OnCloseWindow )
    def OnCloseWindow( self, event=None ):
        try:
            self.SaveState( self.config )
            config = config_file()
            temp = config + '~'
            self.config.write( open( temp,'w') )
            os.rename( temp, config )
        except Exception, err:
            log.error( "Unable to write window preferences, ignoring: %s", traceback.format_exc())
        self.Destroy()

class RunSnakeRunApp(wx.App):
    """Basic application for holding the viewing Frame"""
    def OnInit(self):
        """Initialise the application"""
        wx.InitAllImageHandlers()
        frame = MainFrame( config_parser = load_config())
        frame.Show(True)
        self.SetTopWindow(frame)
        if sys.argv[1:]:
            if sys.argv[1] == '-m':
                if sys.argv[2:]:
                    wx.CallAfter( frame.load_memory, sys.argv[2] )
                else:
                    log.warn( 'No memory file specified' )
            else:
                wx.CallAfter(frame.load, *sys.argv[1:])
        return True
    
class MeliaeViewApp(wx.App):
    def OnInit(self):
        """Initialise the application"""
        wx.InitAllImageHandlers()
        frame = MainFrame( config_parser = load_config())
        frame.Show(True)
        self.SetTopWindow(frame)
        if sys.argv[1:]:
            wx.CallAfter( frame.load_memory, sys.argv[1] )
        else:
            log.warn( 'No memory file specified' )
        return True


def getIcon( data ):
    """Return the data from the resource as a wxIcon"""
    import cStringIO
    stream = cStringIO.StringIO(data)
    image = wx.ImageFromStream(stream)
    icon = wx.EmptyIcon()
    icon.CopyFromBitmap(wx.BitmapFromImage(image))
    return icon

def config_directory():
    base = homedirectory.appdatadirectory()
    directory = os.path.join( base, 'RunSnakeRun' )
    if not os.path.exists( directory ):
        os.makedirs( directory )
    return directory
def config_file():
    directory = config_directory()
    return os.path.join( directory, 'runsnake.conf' )
    
def load_config( ):
    config = ConfigParser.SafeConfigParser()
    filename = config_file()
    if os.path.exists( filename ):
        config.read( filename )
    return config

usage = """runsnake.py profilefile
runsnake.py -m meliae.memoryfile

profilefile -- a file generated by a HotShot profile run from Python
"""

def main():
    """Mainloop for the application"""
    logging.basicConfig(level=logging.INFO)
    app = RunSnakeRunApp(0)
    app.MainLoop()

def meliaemain():
    logging.basicConfig(level=logging.INFO)
    app = MeliaeViewApp(0)
    app.MainLoop()
    
if __name__ == "__main__":
    logging.basicConfig(level=logging.INFO)
    main()