| 1 | """ |
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| 2 | This software was developed by the University of Tennessee as part of the |
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| 3 | Distributed Data Analysis of Neutron Scattering Experiments (DANSE) |
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| 4 | project funded by the US National Science Foundation. |
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| 5 | |
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| 6 | See the license text in license.txt |
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| 7 | |
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| 8 | copyright 2008, University of Tennessee |
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| 9 | """ |
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| 10 | |
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| 11 | |
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| 12 | import wx |
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| 13 | import sys |
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| 14 | from sans.guitools.PlotPanel import PlotPanel |
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| 15 | from sans.guitools.plottables import Graph |
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| 16 | from sans.guicomm.events import EVT_NEW_PLOT |
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| 17 | |
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| 18 | class PanelMenu(wx.Menu): |
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| 19 | plots = None |
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| 20 | graph = None |
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| 21 | |
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| 22 | def set_plots(self, plots): |
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| 23 | self.plots = plots |
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| 24 | |
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| 25 | def set_graph(self, graph): |
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| 26 | self.graph = graph |
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| 27 | |
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| 28 | class View1DPanel(PlotPanel): |
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| 29 | """ |
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| 30 | Plot panel for use with the GUI manager |
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| 31 | """ |
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| 32 | |
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| 33 | ## Internal name for the AUI manager |
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| 34 | window_name = "plotpanel" |
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| 35 | ## Title to appear on top of the window |
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| 36 | window_caption = "Plot Panel" |
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| 37 | ## Flag to tell the GUI manager that this panel is not |
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| 38 | # tied to any perspective |
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| 39 | ALWAYS_ON = True |
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| 40 | ## Group ID |
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| 41 | group_id = None |
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| 42 | |
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| 43 | def __init__(self, parent, id = -1, color = None,\ |
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| 44 | dpi = None, style = wx.NO_FULL_REPAINT_ON_RESIZE, **kwargs): |
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| 45 | """ |
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| 46 | Initialize the panel |
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| 47 | """ |
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| 48 | PlotPanel.__init__(self, parent, id = id, style = style, **kwargs) |
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| 49 | |
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| 50 | ## Reference to the parent window |
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| 51 | self.parent = parent |
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| 52 | ## Plottables |
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| 53 | self.plots = {} |
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| 54 | |
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| 55 | ## Unique ID (from gui_manager) |
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| 56 | self.uid = None |
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| 57 | |
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| 58 | ## Action IDs for internal call-backs |
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| 59 | self.action_ids = {} |
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| 60 | |
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| 61 | ## Graph |
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| 62 | self.graph = Graph() |
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| 63 | self.graph.xaxis("\\rm{Q}", 'A^{-1}') |
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| 64 | self.graph.yaxis("\\rm{Intensity} ","cm^{-1}") |
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| 65 | self.graph.render(self) |
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| 66 | |
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| 67 | def _reset(self): |
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| 68 | """ |
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| 69 | Resets internal data and graph |
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| 70 | """ |
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| 71 | self.graph.reset() |
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| 72 | self.plots = {} |
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| 73 | self.action_ids = {} |
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| 74 | |
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| 75 | def _onEVT_1DREPLOT(self, event): |
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| 76 | """ |
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| 77 | Data is ready to be displayed |
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| 78 | @param event: data event |
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| 79 | """ |
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| 80 | #TODO: Check for existence of plot attribute |
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| 81 | |
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| 82 | if hasattr(event, "reset"): |
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| 83 | self._reset() |
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| 84 | |
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| 85 | is_new = True |
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| 86 | if event.plot.name in self.plots.keys(): |
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| 87 | # Check whether the class of plottable changed |
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| 88 | if not event.plot.__class__==self.plots[event.plot.name].__class__: |
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| 89 | self.graph.delete(self.plots[event.plot.name]) |
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| 90 | else: |
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| 91 | is_new = False |
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| 92 | |
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| 93 | if is_new: |
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| 94 | self.plots[event.plot.name] = event.plot |
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| 95 | self.graph.add(self.plots[event.plot.name]) |
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| 96 | else: |
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| 97 | self.plots[event.plot.name].x = event.plot.x |
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| 98 | self.plots[event.plot.name].y = event.plot.y |
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| 99 | self.plots[event.plot.name].dy = event.plot.dy |
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| 100 | if hasattr(event.plot, 'dx') and hasattr(self.plots[event.plot.name], 'dx'): |
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| 101 | self.plots[event.plot.name].dx = event.plot.dx |
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| 102 | |
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| 103 | |
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| 104 | # Check axis labels |
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| 105 | #TODO: Should re-factor this |
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| 106 | #if event.plot._xunit != self.graph.prop["xunit"]: |
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| 107 | self.graph.xaxis(event.plot._xaxis, event.plot._xunit) |
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| 108 | |
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| 109 | #if event.plot._yunit != self.graph.prop["yunit"]: |
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| 110 | self.graph.yaxis(event.plot._yaxis, event.plot._yunit) |
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| 111 | |
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| 112 | # Set the view scale for all plots |
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| 113 | self._onEVT_FUNC_PROPERTY() |
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| 114 | |
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| 115 | self.graph.render(self) |
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| 116 | self.subplot.figure.canvas.draw_idle() |
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| 117 | |
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| 118 | def onLeftDown(self,event): |
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| 119 | """ left button down and ready to drag""" |
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| 120 | from sans.guicomm.events import StatusEvent |
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| 121 | PlotPanel.onLeftDown(self, event) |
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| 122 | ax = event.inaxes |
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| 123 | if ax != None: |
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| 124 | position = "x: %8.3g y: %8.3g" % (event.xdata, event.ydata) |
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| 125 | wx.PostEvent(self.parent, StatusEvent(status=position)) |
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| 126 | |
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| 127 | |
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| 128 | def onContextMenu(self, event): |
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| 129 | """ |
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| 130 | 1D plot context menu |
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| 131 | @param event: wx context event |
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| 132 | """ |
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| 133 | #slicerpop = wx.Menu() |
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| 134 | slicerpop = PanelMenu() |
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| 135 | slicerpop.set_plots(self.plots) |
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| 136 | slicerpop.set_graph(self.graph) |
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| 137 | |
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| 138 | # Option to save the data displayed |
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| 139 | |
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| 140 | #for plot in self.graph.plottables: |
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| 141 | if self.graph.selected_plottable in self.plots: |
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| 142 | plot = self.plots[self.graph.selected_plottable] |
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| 143 | id = wx.NewId() |
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| 144 | name = plot.name |
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| 145 | slicerpop.Append(id, "&Save %s points" % name) |
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| 146 | self.action_ids[str(id)] = plot |
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| 147 | wx.EVT_MENU(self, id, self._onSave) |
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| 148 | |
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| 149 | # Various plot options |
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| 150 | id = wx.NewId() |
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| 151 | slicerpop.Append(id,'&Save image', 'Save image as PNG') |
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| 152 | wx.EVT_MENU(self, id, self.onSaveImage) |
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| 153 | |
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| 154 | |
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| 155 | item_list = self.parent.get_context_menu(self.graph) |
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| 156 | if (not item_list==None) and (not len(item_list)==0): |
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| 157 | slicerpop.AppendSeparator() |
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| 158 | for item in item_list: |
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| 159 | try: |
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| 160 | id = wx.NewId() |
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| 161 | slicerpop.Append(id, item[0], item[1]) |
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| 162 | wx.EVT_MENU(self, id, item[2]) |
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| 163 | except: |
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| 164 | print sys.exc_value |
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| 165 | print RuntimeError, "View1DPanel.onContextMenu: bad menu item" |
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| 166 | |
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| 167 | slicerpop.AppendSeparator() |
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| 168 | |
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| 169 | #id = wx.NewId() |
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| 170 | #slicerpop.Append(id, '&Toggle Linear/Log scale') |
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| 171 | #wx.EVT_MENU(self, id, self._onToggleScale) |
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| 172 | |
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| 173 | if self.graph.selected_plottable in self.plots: |
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| 174 | if self.plots[self.graph.selected_plottable].__class__.__name__=="Theory1D": |
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| 175 | id = wx.NewId() |
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| 176 | slicerpop.Append(id, '&Add errors to data') |
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| 177 | wx.EVT_MENU(self, id, self._on_add_errors) |
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| 178 | |
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| 179 | id = wx.NewId() |
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| 180 | slicerpop.Append(id, '&Change scale') |
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| 181 | wx.EVT_MENU(self, id, self._onProperties) |
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| 182 | |
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| 183 | id = wx.NewId() |
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| 184 | #slicerpop.AppendSeparator() |
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| 185 | slicerpop.Append(id, '&Reset Graph') |
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| 186 | wx.EVT_MENU(self, id, self.onResetGraph) |
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| 187 | |
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| 188 | pos = event.GetPosition() |
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| 189 | pos = self.ScreenToClient(pos) |
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| 190 | self.PopupMenu(slicerpop, pos) |
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| 191 | |
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| 192 | def _on_add_errors(self, evt): |
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| 193 | """ |
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| 194 | Compute reasonable errors for a data set without |
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| 195 | errors and transorm the plottable to a Data1D |
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| 196 | """ |
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| 197 | import math |
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| 198 | import numpy |
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| 199 | from sans.guitools.plottables import Data1D |
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| 200 | |
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| 201 | if not self.graph.selected_plottable == None: |
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| 202 | length = len(self.plots[self.graph.selected_plottable].x) |
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| 203 | dy = numpy.zeros(length) |
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| 204 | for i in range(length): |
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| 205 | dy[i] = math.sqrt(self.plots[self.graph.selected_plottable].y[i]) |
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| 206 | |
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| 207 | new_plot = Data1D(self.plots[self.graph.selected_plottable].x, |
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| 208 | self.plots[self.graph.selected_plottable].y, |
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| 209 | dy=dy) |
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| 210 | new_plot.interactive = True |
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| 211 | new_plot.name = self.plots[self.graph.selected_plottable].name |
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| 212 | label, unit = self.plots[self.graph.selected_plottable].get_xaxis() |
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| 213 | new_plot.xaxis(label, unit) |
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| 214 | label, unit = self.plots[self.graph.selected_plottable].get_yaxis() |
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| 215 | new_plot.yaxis(label, unit) |
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| 216 | |
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| 217 | self.graph.delete(self.plots[self.graph.selected_plottable]) |
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| 218 | |
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| 219 | self.graph.add(new_plot) |
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| 220 | self.plots[self.graph.selected_plottable]=new_plot |
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| 221 | |
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| 222 | self.graph.render(self) |
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| 223 | self.subplot.figure.canvas.draw_idle() |
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| 224 | |
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| 225 | def _onSave(self, evt): |
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| 226 | """ |
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| 227 | Save a data set to a text file |
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| 228 | @param evt: Menu event |
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| 229 | """ |
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| 230 | import os |
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| 231 | id = str(evt.GetId()) |
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| 232 | if id in self.action_ids: |
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| 233 | |
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| 234 | path = None |
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| 235 | dlg = wx.FileDialog(self, "Choose a file", os.getcwd(), "", "*.txt", wx.SAVE) |
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| 236 | if dlg.ShowModal() == wx.ID_OK: |
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| 237 | path = dlg.GetPath() |
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| 238 | mypath = os.path.basename(path) |
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| 239 | print path |
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| 240 | dlg.Destroy() |
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| 241 | |
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| 242 | if not path == None: |
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| 243 | out = open(path, 'w') |
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| 244 | has_errors = True |
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| 245 | if self.action_ids[id].dy==None or self.action_ids[id].dy==[]: |
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| 246 | has_errors = False |
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| 247 | |
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| 248 | # Sanity check |
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| 249 | if has_errors: |
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| 250 | try: |
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| 251 | if len(self.action_ids[id].y) != len(self.action_ids[id].dy): |
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| 252 | print "Y and dY have different lengths" |
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| 253 | has_errors = False |
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| 254 | except: |
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| 255 | has_errors = False |
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| 256 | |
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| 257 | if has_errors: |
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| 258 | out.write("<X> <Y> <dY>\n") |
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| 259 | else: |
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| 260 | out.write("<X> <Y>\n") |
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| 261 | |
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| 262 | for i in range(len(self.action_ids[id].x)): |
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| 263 | if has_errors: |
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| 264 | out.write("%g %g %g\n" % (self.action_ids[id].x[i], |
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| 265 | self.action_ids[id].y[i], |
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| 266 | self.action_ids[id].dy[i])) |
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| 267 | else: |
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| 268 | out.write("%g %g\n" % (self.action_ids[id].x[i], |
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| 269 | self.action_ids[id].y[i])) |
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| 270 | |
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| 271 | out.close() |
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| 272 | |
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| 273 | |
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| 274 | def _onToggleScale(self, event): |
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| 275 | if self.get_yscale() == 'log': |
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| 276 | self.set_yscale('linear') |
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| 277 | else: |
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| 278 | self.set_yscale('log') |
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| 279 | self.subplot.figure.canvas.draw_idle() |
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| 280 | |
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| 281 | class Plugin: |
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| 282 | """ |
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| 283 | Plug-in class to be instantiated by the GUI manager |
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| 284 | """ |
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| 285 | |
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| 286 | def __init__(self): |
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| 287 | """ |
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| 288 | Initialize the plug-in |
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| 289 | """ |
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| 290 | ## Plug-in name |
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| 291 | self.sub_menu = "Plotting" |
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| 292 | |
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| 293 | ## Reference to the parent window |
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| 294 | self.parent = None |
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| 295 | |
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| 296 | ## List of panels for the simulation perspective (names) |
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| 297 | self.perspective = [] |
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| 298 | |
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| 299 | ## Plot panels |
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| 300 | self.plot_panels = [] |
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| 301 | |
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| 302 | |
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| 303 | def populate_menu(self, id, parent): |
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| 304 | """ |
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| 305 | Create a 'Plot' menu to list the panels |
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| 306 | available for displaying |
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| 307 | @param id: next available unique ID for wx events |
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| 308 | @param parent: parent window |
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| 309 | """ |
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| 310 | self.menu = wx.Menu() |
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| 311 | return [(id, self.menu, "Plot")] |
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| 312 | |
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| 313 | |
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| 314 | def get_panels(self, parent): |
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| 315 | """ |
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| 316 | Create and return a list of panel objects |
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| 317 | """ |
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| 318 | ## Save a reference to the parent |
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| 319 | self.parent = parent |
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| 320 | # Connect to plotting events |
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| 321 | self.parent.Bind(EVT_NEW_PLOT, self._on_plot_event) |
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| 322 | |
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| 323 | # We have no initial panels for this plug-in |
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| 324 | return [] |
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| 325 | |
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| 326 | def get_perspective(self): |
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| 327 | """ |
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| 328 | Get the list of panel names for this perspective |
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| 329 | """ |
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| 330 | return self.perspective |
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| 331 | |
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| 332 | def on_perspective(self, event): |
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| 333 | """ |
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| 334 | Call back function for the perspective menu item. |
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| 335 | We notify the parent window that the perspective |
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| 336 | has changed. |
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| 337 | @param event: menu event |
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| 338 | """ |
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| 339 | self.parent.set_perspective(self.perspective) |
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| 340 | |
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| 341 | def post_init(self): |
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| 342 | """ |
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| 343 | Post initialization call back to close the loose ends |
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| 344 | [Somehow openGL needs this call] |
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| 345 | """ |
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| 346 | pass |
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| 347 | |
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| 348 | def _on_show_panel(self, event): |
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| 349 | print "_on_show_panel" |
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| 350 | |
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| 351 | def _on_plot_event(self, event): |
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| 352 | """ |
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| 353 | A new plottable is being shipped to the plotting plug-in. |
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| 354 | Check whether we have a panel to put in on, or create |
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| 355 | a new one |
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| 356 | @param event: EVT_NEW_PLOT event |
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| 357 | """ |
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| 358 | # Check whether we already have a graph with the same units |
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| 359 | # as the plottable we just received. |
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| 360 | is_available = False |
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| 361 | for panel in self.plot_panels: |
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| 362 | if event.plot._xunit == panel.graph.prop["xunit_base"] \ |
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| 363 | and event.plot._yunit == panel.graph.prop["yunit_base"]: |
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| 364 | if hasattr(event.plot, "group_id"): |
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| 365 | if not event.plot.group_id==None \ |
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| 366 | and event.plot.group_id==panel.group_id: |
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| 367 | is_available = True |
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| 368 | panel._onEVT_1DREPLOT(event) |
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| 369 | self.parent.show_panel(panel.uid) |
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| 370 | else: |
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| 371 | # Check that the plot panel has no group ID |
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| 372 | if panel.group_id==None: |
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| 373 | is_available = True |
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| 374 | panel._onEVT_1DREPLOT(event) |
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| 375 | self.parent.show_panel(panel.uid) |
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| 376 | |
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| 377 | # Create a new plot panel if none was available |
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| 378 | if not is_available: |
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| 379 | new_panel = View1DPanel(self.parent, -1, style=wx.RAISED_BORDER) |
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| 380 | # Set group ID if available |
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| 381 | group_id_str = '' |
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| 382 | if hasattr(event.plot, "group_id"): |
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| 383 | if not event.plot.group_id==None: |
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| 384 | new_panel.group_id = event.plot.group_id |
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| 385 | group_id_str = ' [%s]' % event.plot.group_id |
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| 386 | |
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| 387 | if hasattr(event, "title"): |
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| 388 | new_panel.window_caption = event.title |
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| 389 | new_panel.window_name = event.title |
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| 390 | #new_panel.window_caption = event.title+group_id_str |
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| 391 | #new_panel.window_name = event.title+group_id_str |
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| 392 | |
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| 393 | event_id = self.parent.popup_panel(new_panel) |
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| 394 | self.menu.Append(event_id, new_panel.window_caption, |
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| 395 | "Show %s plot panel" % new_panel.window_caption) |
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| 396 | |
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| 397 | # Set UID to allow us to reference the panel later |
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| 398 | new_panel.uid = event_id |
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| 399 | |
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| 400 | # Ship the plottable to its panel |
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| 401 | new_panel._onEVT_1DREPLOT(event) |
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| 402 | self.plot_panels.append(new_panel) |
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| 403 | |
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| 404 | return |
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| 405 | |
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