[41d466f] | 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 | |
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| 21 | def set_plots(self, plots): |
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| 22 | self.plots = plots |
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| 23 | |
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| 24 | |
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| 25 | class View1DPanel(PlotPanel): |
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| 26 | """ |
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| 27 | Plot panel for use with the GUI manager |
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| 28 | """ |
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| 29 | |
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| 30 | ## Internal name for the AUI manager |
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| 31 | window_name = "plotpanel" |
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| 32 | ## Title to appear on top of the window |
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| 33 | window_caption = "Plot Panel" |
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| 34 | ## Flag to tell the GUI manager that this panel is not |
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| 35 | # tied to any perspective |
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| 36 | ALWAYS_ON = True |
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| 37 | |
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| 38 | def __init__(self, parent, id = -1, color = None,\ |
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| 39 | dpi = None, style = wx.NO_FULL_REPAINT_ON_RESIZE, **kwargs): |
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| 40 | """ |
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| 41 | Initialize the panel |
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| 42 | """ |
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| 43 | PlotPanel.__init__(self, parent, id = id, style = style, **kwargs) |
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| 44 | |
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| 45 | ## Reference to the parent window |
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| 46 | self.parent = parent |
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| 47 | ## Plottables |
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| 48 | self.plots = {} |
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| 49 | |
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| 50 | ## Unique ID (from gui_manager) |
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| 51 | self.uid = None |
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| 52 | |
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| 53 | ## Graph |
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| 54 | self.graph = Graph() |
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| 55 | self.graph.xaxis("\\rm{Q}", 'A^{-1}') |
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| 56 | self.graph.yaxis("\\rm{Intensity} ","cm^{-1}") |
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| 57 | self.graph.render(self) |
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| 58 | |
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| 59 | def _onEVT_1DREPLOT(self, event): |
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| 60 | """ |
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| 61 | Data is ready to be displayed |
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| 62 | @param event: data event |
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| 63 | """ |
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| 64 | #TODO: Check for existence of plot attribute |
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| 65 | |
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| 66 | is_new = True |
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| 67 | if event.plot.name in self.plots.keys(): |
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| 68 | is_new = False |
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| 69 | |
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| 70 | if is_new: |
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| 71 | self.plots[event.plot.name] = event.plot |
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| 72 | self.graph.add(self.plots[event.plot.name]) |
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| 73 | else: |
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| 74 | self.plots[event.plot.name].x = event.plot.x |
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| 75 | self.plots[event.plot.name].y = event.plot.y |
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| 76 | self.plots[event.plot.name].dy = event.plot.dy |
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| 77 | if hasattr(event.plot, 'dx') and hasattr(self.plots[event.plot.name], 'dx'): |
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| 78 | self.plots[event.plot.name].dx = event.plot.dx |
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| 79 | |
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| 80 | |
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| 81 | # Check axis labels |
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| 82 | #TODO: Should re-factor this |
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| 83 | if event.plot._xunit != self.graph.prop["xunit"]: |
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| 84 | self.graph.xaxis(event.plot._xaxis, event.plot._xunit) |
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| 85 | |
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| 86 | if event.plot._yunit != self.graph.prop["yunit"]: |
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| 87 | self.graph.yaxis(event.plot._yaxis, event.plot._yunit) |
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| 88 | |
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| 89 | self.graph.render(self) |
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| 90 | self.subplot.figure.canvas.draw_idle() |
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| 91 | |
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| 92 | def onContextMenu(self, event): |
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| 93 | """ |
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| 94 | 1D plot context menu |
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| 95 | @param event: wx context event |
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| 96 | """ |
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| 97 | #slicerpop = wx.Menu() |
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| 98 | slicerpop = PanelMenu() |
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| 99 | slicerpop.set_plots(self.plots) |
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| 100 | |
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| 101 | # Various plot options |
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| 102 | id = wx.NewId() |
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| 103 | slicerpop.Append(id,'&Save image', 'Save image as PNG') |
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| 104 | wx.EVT_MENU(self, id, self.onSaveImage) |
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| 105 | |
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| 106 | slicerpop.AppendSeparator() |
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| 107 | item_list = self.parent.get_context_menu() |
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| 108 | if not item_list==None: |
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| 109 | for item in item_list: |
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| 110 | try: |
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| 111 | id = wx.NewId() |
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| 112 | slicerpop.Append(id, item[0], item[1]) |
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| 113 | wx.EVT_MENU(self, id, item[2]) |
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| 114 | except: |
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| 115 | print sys.exc_value |
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| 116 | print RuntimeError, "View1DPanel.onContextMenu: bad menu item" |
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| 117 | |
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| 118 | slicerpop.AppendSeparator() |
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| 119 | |
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| 120 | id = wx.NewId() |
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| 121 | slicerpop.Append(id, '&Toggle Linear/Log scale') |
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| 122 | wx.EVT_MENU(self, id, self._onToggleScale) |
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| 123 | |
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| 124 | pos = event.GetPosition() |
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| 125 | pos = self.ScreenToClient(pos) |
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| 126 | self.PopupMenu(slicerpop, pos) |
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| 127 | |
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| 128 | def _onToggleScale(self, event): |
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| 129 | if self.get_yscale() == 'log': |
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| 130 | self.set_yscale('linear') |
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| 131 | else: |
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| 132 | self.set_yscale('log') |
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| 133 | self.subplot.figure.canvas.draw_idle() |
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| 134 | |
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| 135 | class Plugin: |
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| 136 | """ |
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| 137 | Plug-in class to be instantiated by the GUI manager |
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| 138 | """ |
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| 139 | |
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| 140 | def __init__(self): |
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| 141 | """ |
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| 142 | Initialize the plug-in |
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| 143 | """ |
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| 144 | ## Plug-in name |
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| 145 | self.sub_menu = "Plotting" |
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| 146 | |
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| 147 | ## Reference to the parent window |
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| 148 | self.parent = None |
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| 149 | |
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| 150 | ## List of panels for the simulation perspective (names) |
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| 151 | self.perspective = [] |
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| 152 | |
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| 153 | ## Plot panels |
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| 154 | self.plot_panels = [] |
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| 155 | |
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| 156 | |
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| 157 | def populate_menu(self, id, parent): |
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| 158 | """ |
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| 159 | Create a 'Plot' menu to list the panels |
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| 160 | available for displaying |
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| 161 | @param id: next available unique ID for wx events |
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| 162 | @param parent: parent window |
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| 163 | """ |
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| 164 | self.menu = wx.Menu() |
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| 165 | return [(id, self.menu, "Plot")] |
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| 166 | |
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| 167 | |
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| 168 | def get_panels(self, parent): |
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| 169 | """ |
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| 170 | Create and return a list of panel objects |
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| 171 | """ |
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| 172 | ## Save a reference to the parent |
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| 173 | self.parent = parent |
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| 174 | # Connect to plotting events |
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| 175 | self.parent.Bind(EVT_NEW_PLOT, self._on_plot_event) |
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| 176 | |
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| 177 | # We have no initial panels for this plug-in |
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| 178 | return [] |
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| 179 | |
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| 180 | def get_perspective(self): |
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| 181 | """ |
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| 182 | Get the list of panel names for this perspective |
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| 183 | """ |
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| 184 | return self.perspective |
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| 185 | |
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| 186 | def on_perspective(self, event): |
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| 187 | """ |
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| 188 | Call back function for the perspective menu item. |
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| 189 | We notify the parent window that the perspective |
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| 190 | has changed. |
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| 191 | @param event: menu event |
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| 192 | """ |
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| 193 | self.parent.set_perspective(self.perspective) |
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| 194 | |
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| 195 | def post_init(self): |
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| 196 | """ |
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| 197 | Post initialization call back to close the loose ends |
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| 198 | [Somehow openGL needs this call] |
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| 199 | """ |
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| 200 | pass |
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| 201 | |
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| 202 | def _on_show_panel(self, event): |
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| 203 | print "_on_show_panel" |
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| 204 | |
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| 205 | def _on_plot_event(self, event): |
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| 206 | """ |
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| 207 | A new plottable is being shipped to the plotting plug-in. |
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| 208 | Check whether we have a panel to put in on, or create |
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| 209 | a new one |
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| 210 | @param event: EVT_NEW_PLOT event |
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| 211 | """ |
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| 212 | # Check whether we already have a graph with the same units |
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| 213 | # as the plottable we just received. |
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| 214 | is_available = False |
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| 215 | for panel in self.plot_panels: |
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| 216 | if event.plot._xunit == panel.graph.prop["xunit"] \ |
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| 217 | and event.plot._yunit == panel.graph.prop["yunit"]: |
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| 218 | is_available = True |
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| 219 | panel._onEVT_1DREPLOT(event) |
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| 220 | self.parent.show_panel(panel.uid) |
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| 221 | |
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| 222 | # Create a new plot panel if none was available |
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| 223 | if not is_available: |
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| 224 | new_panel = View1DPanel(self.parent, -1, style=wx.RAISED_BORDER) |
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| 225 | if hasattr(event, "title"): |
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| 226 | new_panel.window_caption = event.title |
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| 227 | new_panel.window_name = event.title |
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| 228 | |
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| 229 | event_id = self.parent.popup_panel(new_panel) |
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| 230 | self.menu.Append(event_id, new_panel.window_caption, |
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| 231 | "Show %s plot panel" % new_panel.window_caption) |
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| 232 | |
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| 233 | # Set UID to allow us to reference the panel later |
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| 234 | new_panel.uid = event_id |
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| 235 | |
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| 236 | # Ship the plottable to its panel |
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| 237 | new_panel._onEVT_1DREPLOT(event) |
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| 238 | self.plot_panels.append(new_panel) |
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| 239 | |
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| 240 | return |
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| 241 | |
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