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 | import wx |
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11 | import wx.aui |
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12 | import os, sys |
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13 | try: |
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14 | # Try to find a local config |
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15 | import imp |
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16 | path = os.getcwd() |
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17 | if(os.path.isfile("%s/%s.py" % (path, 'config'))): |
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18 | fObj, path, descr = imp.find_module('config', [path]) |
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19 | config = imp.load_module('config', fObj, path, descr) |
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20 | except: |
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21 | # Didn't find local config, load the default |
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22 | import config |
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23 | from sans.guicomm.events import EVT_STATUS |
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24 | |
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25 | class ViewerFrame(wx.Frame): |
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26 | """ |
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27 | Main application frame |
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28 | """ |
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29 | def __init__(self, parent, id, title): |
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30 | """ |
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31 | Initialize the Frame object |
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32 | """ |
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33 | from local_perspectives.plotting import plotting |
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34 | wx.Frame.__init__(self, parent, id, title, wx.DefaultPosition, size=(1000, 1000)) |
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35 | |
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36 | path = os.path.dirname(__file__) |
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37 | self.SetIcon(wx.Icon(os.path.join(path,'images/ball.ico'), wx.BITMAP_TYPE_ICO)) |
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38 | |
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39 | ## Application manager |
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40 | self.app_manager = None |
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41 | |
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42 | ## Find plug-ins |
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43 | # Modify this so that we can specify the directory to look into |
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44 | self.plugins = self._find_plugins() |
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45 | self.plugins.append(plotting.Plugin()) |
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46 | |
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47 | ## List of panels |
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48 | self.panels = {} |
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49 | |
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50 | ## Next available ID for wx gui events |
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51 | self.next_id = 20000 |
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52 | |
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53 | ## Default welcome panel |
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54 | self.defaultPanel = DefaultPanel(self, -1, style=wx.RAISED_BORDER) |
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55 | |
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56 | # Set up the layout |
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57 | self._setup_layout() |
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58 | |
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59 | # Set up the menu |
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60 | self._setup_menus() |
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61 | |
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62 | self.Fit() |
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63 | |
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64 | # Register the close event so it calls our own method |
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65 | wx.EVT_CLOSE(self, self._onClose) |
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66 | # Register to status events |
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67 | self.Bind(EVT_STATUS, self._on_status_event) |
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68 | |
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69 | def _setup_layout(self): |
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70 | """ |
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71 | Set up the layout |
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72 | """ |
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73 | # Status bar |
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74 | self.sb = self.CreateStatusBar() |
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75 | self.SetStatusText("") |
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76 | |
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77 | # Add panel |
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78 | self._mgr = wx.aui.AuiManager(self) |
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79 | |
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80 | # Load panels |
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81 | self._load_panels() |
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82 | |
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83 | self._mgr.Update() |
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84 | |
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85 | def _find_plugins(self, dir="perspectives"): |
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86 | """ |
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87 | Find available perspective plug-ins |
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88 | @param dir: directory in which to look for plug-ins |
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89 | @return: list of plug-ins |
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90 | """ |
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91 | import imp |
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92 | print "Looking for plug-ins in %s" % dir |
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93 | # List of plug-in objects |
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94 | plugins = [] |
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95 | # Go through files in panels directory |
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96 | try: |
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97 | list = os.listdir(dir) |
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98 | for item in list: |
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99 | print item |
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100 | toks = os.path.splitext(os.path.basename(item)) |
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101 | name = None |
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102 | if not toks[0] == '__init__': |
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103 | |
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104 | if toks[1]=='.py' or toks[1]=='': |
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105 | name = toks[0] |
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106 | |
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107 | path = [os.path.abspath(dir)] |
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108 | file = None |
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109 | try: |
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110 | if toks[1]=='': |
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111 | mod_path = '.'.join([dir, name]) |
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112 | module = __import__(mod_path, globals(), locals(), [name]) |
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113 | else: |
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114 | (file, path, info) = imp.find_module(name, path) |
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115 | print path |
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116 | module = imp.load_module( name, file, item, info ) |
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117 | if hasattr(module, "PLUGIN_ID"): |
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118 | try: |
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119 | plugins.append(module.Plugin()) |
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120 | print "Found plug-in: %s" % module.PLUGIN_ID |
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121 | except: |
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122 | config.printEVT("Error accessing PluginPanel in %s\n %s" % (name, sys.exc_value)) |
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123 | |
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124 | except: |
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125 | print sys.exc_value |
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126 | finally: |
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127 | if not file==None: |
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128 | file.close() |
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129 | except: |
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130 | # Should raise and catch at a higher level and display error on status bar |
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131 | pass |
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132 | return plugins |
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133 | |
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134 | |
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135 | |
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136 | def _load_panels(self): |
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137 | """ |
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138 | Load all panels in the panels directory |
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139 | """ |
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140 | |
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141 | # Look for plug-in panels |
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142 | panels = [] |
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143 | for item in self.plugins: |
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144 | if hasattr(item, "get_panels"): |
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145 | ps = item.get_panels(self) |
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146 | panels.extend(ps) |
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147 | |
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148 | # Show a default panel with some help information |
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149 | # It also sets the size of the application windows |
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150 | self.panels["default"] = self.defaultPanel |
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151 | self._mgr.AddPane(self.defaultPanel, wx.aui.AuiPaneInfo(). |
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152 | Name("default"). |
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153 | CenterPane(). |
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154 | BestSize(wx.Size(900,800)). |
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155 | MinSize(wx.Size(900,800)). |
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156 | Show()) |
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157 | |
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158 | # Add the panels to the AUI manager |
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159 | for panel_class in panels: |
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160 | p = panel_class |
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161 | id = wx.NewId() |
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162 | |
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163 | # Check whether we need to put this panel |
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164 | # in the center pane |
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165 | if hasattr(p, "CENTER_PANE"): |
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166 | if p.CENTER_PANE: |
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167 | self.panels[str(id)] = p |
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168 | self._mgr.AddPane(p, wx.aui.AuiPaneInfo(). |
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169 | Name(p.window_name).Caption(p.window_caption). |
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170 | CenterPane(). |
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171 | BestSize(wx.Size(600,600)). |
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172 | MinSize(wx.Size(600,600)). |
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173 | Hide()) |
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174 | |
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175 | else: |
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176 | self.panels[str(id)] = p |
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177 | self._mgr.AddPane(p, wx.aui.AuiPaneInfo(). |
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178 | Name(p.window_name).Caption(p.window_caption). |
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179 | #Floatable(). |
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180 | #Float(). |
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181 | Right(). |
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182 | Dock(). |
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183 | TopDockable(). |
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184 | BottomDockable(). |
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185 | LeftDockable(). |
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186 | RightDockable(). |
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187 | MinimizeButton(). |
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188 | Hide(). |
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189 | #Show(). |
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190 | BestSize(wx.Size(400,400)). |
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191 | MinSize(wx.Size(100,100))) |
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192 | |
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193 | |
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194 | def get_context_menu(self): |
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195 | """ |
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196 | Get the context menu items made available |
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197 | by the different plug-ins. |
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198 | This function is used by the plotting module |
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199 | """ |
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200 | menu_list = [] |
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201 | for item in self.plugins: |
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202 | if hasattr(item, "get_context_menu"): |
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203 | menu_list.extend(item.get_context_menu()) |
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204 | |
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205 | return menu_list |
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206 | |
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207 | def popup_panel(self, p): |
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208 | """ |
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209 | Add a panel object to the AUI manager |
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210 | @param p: panel object to add to the AUI manager |
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211 | @return: ID of the event associated with the new panel [int] |
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212 | """ |
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213 | |
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214 | ID = wx.NewId() |
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215 | self.panels[str(ID)] = p |
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216 | |
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217 | count = 0 |
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218 | for item in self.panels: |
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219 | if self.panels[item].window_name.startswith(p.window_name): |
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220 | count += 1 |
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221 | |
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222 | windowname = p.window_name |
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223 | caption = p.window_caption |
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224 | if count>0: |
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225 | windowname += str(count+1) |
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226 | caption += (' '+str(count)) |
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227 | |
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228 | p.window_name = windowname |
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229 | p.window_caption = caption |
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230 | |
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231 | self._mgr.AddPane(p, wx.aui.AuiPaneInfo(). |
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232 | Name(windowname).Caption(caption). |
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233 | Floatable(). |
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234 | #Float(). |
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235 | Right(). |
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236 | Dock(). |
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237 | TopDockable(). |
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238 | BottomDockable(). |
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239 | LeftDockable(). |
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240 | RightDockable(). |
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241 | MinimizeButton(). |
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242 | #Hide(). |
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243 | #Show(). |
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244 | BestSize(wx.Size(400,400)). |
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245 | MinSize(wx.Size(200,200))) |
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246 | |
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247 | # Register for showing/hiding the panel |
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248 | wx.EVT_MENU(self, ID, self._on_view) |
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249 | |
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250 | self._mgr.Update() |
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251 | return ID |
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252 | |
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253 | def _setup_menus(self): |
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254 | """ |
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255 | Set up the application menus |
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256 | """ |
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257 | # Menu |
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258 | menubar = wx.MenuBar() |
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259 | |
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260 | # File menu |
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261 | filemenu = wx.Menu() |
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262 | filemenu.Append(101,'&Quit', 'Exit') |
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263 | |
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264 | # Plot menu |
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265 | # Attach a menu item for each panel in our |
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266 | # panel list that also appears in a plug-in. |
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267 | # TODO: clean this up. We should just identify |
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268 | # plug-in panels and add them all. |
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269 | viewmenu = wx.Menu() |
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270 | |
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271 | for plug in self.plugins: |
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272 | plugmenu = wx.Menu() |
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273 | pers = plug.get_perspective() |
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274 | if len(pers)>0: |
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275 | for item in self.panels: |
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276 | if item == 'default': |
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277 | continue |
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278 | panel = self.panels[item] |
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279 | if panel.window_name in pers: |
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280 | plugmenu.Append(int(item), panel.window_caption, "Show %s window" % panel.window_caption) |
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281 | wx.EVT_MENU(self, int(item), self._on_view) |
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282 | |
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283 | viewmenu.AppendMenu(wx.NewId(), plug.sub_menu, plugmenu, plug.sub_menu) |
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284 | |
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285 | # Perspective |
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286 | # Attach a menu item for each defined perspective. |
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287 | p_menu = wx.Menu() |
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288 | |
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289 | for plug in self.plugins: |
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290 | if len(plug.get_perspective()) > 0: |
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291 | id = wx.NewId() |
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292 | p_menu.Append(id, plug.sub_menu, "Switch to %s perspective" % plug.sub_menu) |
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293 | wx.EVT_MENU(self, id, plug.on_perspective) |
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294 | |
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295 | # Help menu |
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296 | helpmenu = wx.Menu() |
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297 | |
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298 | # Look for help item in plug-ins |
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299 | for item in self.plugins: |
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300 | if hasattr(item, "help"): |
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301 | id = wx.NewId() |
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302 | helpmenu.Append(id,'&%s help' % item.sub_menu, '') |
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303 | wx.EVT_MENU(self, id, item.help) |
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304 | |
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305 | if config._do_aboutbox: |
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306 | id = wx.NewId() |
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307 | helpmenu.Append(id,'&About', 'Software information') |
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308 | wx.EVT_MENU(self, id, self._onAbout) |
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309 | id = wx.NewId() |
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310 | helpmenu.Append(id,'&Check for update', 'Check for the latest version of %s' % config.__appname__) |
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311 | wx.EVT_MENU(self, id, self._check_update) |
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312 | |
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313 | |
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314 | # Add sub menus |
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315 | menubar.Append(filemenu, '&File') |
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316 | |
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317 | # Look for plug-in menus |
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318 | # Add available plug-in sub-menus. |
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319 | for item in self.plugins: |
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320 | if hasattr(item, "populate_menu"): |
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321 | for (self.next_id, menu, name) in item.populate_menu(self.next_id, self): |
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322 | menubar.Append(menu, name) |
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323 | |
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324 | |
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325 | menubar.Append(viewmenu, '&Panel') |
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326 | menubar.Append(p_menu, '&Perspective') |
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327 | menubar.Append(helpmenu, '&Help') |
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328 | |
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329 | self.SetMenuBar(menubar) |
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330 | |
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331 | # Bind handlers |
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332 | wx.EVT_MENU(self, 101, self.Close) |
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333 | |
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334 | def _on_status_event(self, evt): |
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335 | """ |
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336 | Display status message |
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337 | """ |
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338 | self.SetStatusText(str(evt.status)) |
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339 | |
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340 | |
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341 | def _on_view(self, evt): |
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342 | """ |
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343 | A panel was selected to be shown. If it's not already |
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344 | shown, display it. |
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345 | @param evt: menu event |
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346 | """ |
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347 | self.show_panel(evt.GetId()) |
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348 | |
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349 | def show_panel(self, uid): |
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350 | """ |
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351 | Shows the panel with the given id |
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352 | @param uid: unique ID number of the panel to show |
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353 | """ |
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354 | ID = str(uid) |
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355 | config.printEVT("show_panel: %s" % ID) |
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356 | if ID in self.panels.keys(): |
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357 | if not self._mgr.GetPane(self.panels[ID].window_name).IsShown(): |
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358 | self._mgr.GetPane(self.panels[ID].window_name).Show() |
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359 | # Hide default panel |
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360 | self._mgr.GetPane(self.panels["default"].window_name).Hide() |
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361 | |
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362 | |
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363 | self._mgr.Update() |
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364 | |
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365 | |
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366 | def _onClose(self, event): |
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367 | import sys |
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368 | wx.Exit() |
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369 | sys.exit() |
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370 | |
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371 | def Close(self, event=None): |
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372 | """ |
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373 | Quit the application |
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374 | """ |
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375 | import sys |
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376 | wx.Frame.Close(self) |
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377 | wx.Exit() |
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378 | sys.exit() |
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379 | |
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380 | |
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381 | def _check_update(self, event=None): |
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382 | """ |
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383 | Check with the deployment server whether a new version |
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384 | of the application is available |
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385 | """ |
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386 | import urllib |
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387 | try: |
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388 | h = urllib.urlopen(config.__update_URL__) |
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389 | lines = h.readlines() |
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390 | line = '' |
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391 | if len(lines)>0: |
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392 | line = lines[0] |
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393 | |
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394 | toks = line.lstrip().rstrip().split('.') |
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395 | toks_current = config.__version__.split('.') |
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396 | update_available = False |
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397 | for i in range(len(toks)): |
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398 | if int(toks[i])>int(toks_current[i]): |
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399 | update_available = True |
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400 | if update_available: |
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401 | #print "Version %s is available" % line.rstrip().lstrip() |
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402 | self.SetStatusText("Version %s is available! See the Help menu to download it." % line.rstrip().lstrip()) |
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403 | if event != None: |
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404 | import webbrowser |
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405 | webbrowser.open(config.__download_page__) |
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406 | else: |
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407 | self.SetStatusText("You have the latest version of %s" % config.__appname__) |
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408 | #print "Server version = %s" % line.rstrip().lstrip() |
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409 | except: |
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410 | self.SetStatusText("You have the latest version of %s" % config.__appname__) |
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411 | |
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412 | |
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413 | def _onAbout(self, evt): |
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414 | """ |
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415 | Pop up the about dialog |
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416 | @param evt: menu event |
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417 | """ |
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418 | if config._do_aboutbox: |
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419 | import aboutbox |
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420 | dialog = aboutbox.DialogAbout(None, -1, "") |
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421 | dialog.ShowModal() |
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422 | |
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423 | def set_manager(self, manager): |
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424 | """ |
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425 | Sets the application manager for this frame |
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426 | @param manager: frame manager |
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427 | """ |
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428 | self.app_manager = manager |
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429 | |
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430 | def post_init(self): |
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431 | """ |
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432 | This initialization method is called after the GUI |
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433 | has been created and all plug-ins loaded. It calls |
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434 | the post_init() method of each plug-in (if it exists) |
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435 | so that final initialization can be done. |
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436 | """ |
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437 | for item in self.plugins: |
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438 | if hasattr(item, "post_init"): |
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439 | item.post_init() |
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440 | |
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441 | def set_perspective(self, panels): |
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442 | """ |
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443 | Sets the perspective of the GUI. |
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444 | Opens all the panels in the list, and closes |
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445 | all the others. |
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446 | |
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447 | @param panels: list of panels |
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448 | """ |
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449 | print "gui_mng.set_perspective" |
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450 | for item in self.panels: |
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451 | # Check whether this is a sticky panel |
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452 | if hasattr(self.panels[item], "ALWAYS_ON"): |
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453 | if self.panels[item].ALWAYS_ON: |
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454 | continue |
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455 | |
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456 | if self.panels[item].window_name in panels: |
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457 | if not self._mgr.GetPane(self.panels[item].window_name).IsShown(): |
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458 | self._mgr.GetPane(self.panels[item].window_name).Show() |
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459 | else: |
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460 | if self._mgr.GetPane(self.panels[item].window_name).IsShown(): |
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461 | self._mgr.GetPane(self.panels[item].window_name).Hide() |
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462 | |
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463 | self._mgr.Update() |
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464 | |
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465 | def choose_file(self): |
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466 | """ |
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467 | Functionality that belongs elsewhere |
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468 | Should add a hook to specify the preferred file type/extension. |
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469 | """ |
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470 | #TODO: clean this up |
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471 | from data_loader import choose_data_file |
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472 | return choose_data_file(self) |
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473 | |
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474 | class DefaultPanel(wx.Panel): |
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475 | """ |
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476 | Defines the API for a panels to work with |
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477 | the GUI manager |
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478 | """ |
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479 | ## Internal nickname for the window, used by the AUI manager |
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480 | window_name = "default" |
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481 | ## Name to appear on the window title bar |
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482 | window_caption = "Welcome panel" |
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483 | ## Flag to tell the AUI manager to put this panel in the center pane |
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484 | CENTER_PANE = True |
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485 | |
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486 | |
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487 | # Toy application to test this Frame |
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488 | class ViewApp(wx.App): |
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489 | def OnInit(self): |
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490 | #from gui_manager import ViewerFrame |
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491 | self.frame = ViewerFrame(None, -1, config.__appname__) |
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492 | self.frame.Show(True) |
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493 | |
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494 | if hasattr(self.frame, 'special'): |
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495 | print "Special?", self.frame.special.__class__.__name__ |
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496 | self.frame.special.SetCurrent() |
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497 | self.frame.post_init() |
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498 | self.SetTopWindow(self.frame) |
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499 | return True |
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500 | |
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501 | def set_manager(self, manager): |
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502 | """ |
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503 | Sets a reference to the application manager |
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504 | of the GUI manager (Frame) |
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505 | """ |
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506 | self.frame.set_manager(manager) |
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507 | |
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508 | |
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509 | if __name__ == "__main__": |
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510 | app = ViewApp(0) |
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511 | app.MainLoop() |
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