1 | # ---------------------------------------------------------------------- |
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2 | # COMPONENT: EnergyLevels - visualizer for discrete energy levels |
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3 | # |
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4 | # This widget is a simple visualizer for a set of quantized energy |
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5 | # levels, as you might find for a molecule or a quantum well. It |
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6 | # takes the Rappture XML representation for a <table> and extracts |
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7 | # values from the "energy" column, then plots those energies on a |
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8 | # graph. |
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9 | # ====================================================================== |
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10 | # AUTHOR: Michael McLennan, Purdue University |
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11 | # Copyright (c) 2004-2005 Purdue Research Foundation |
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12 | # |
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13 | # See the file "license.terms" for information on usage and |
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14 | # redistribution of this file, and for a DISCLAIMER OF ALL WARRANTIES. |
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15 | # ====================================================================== |
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16 | package require Itk |
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17 | package require BLT |
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18 | |
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19 | option add *EnergyLevels.width 4i widgetDefault |
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20 | option add *EnergyLevels.height 4i widgetDefault |
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21 | option add *EnergyLevels.padding 4 widgetDefault |
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22 | option add *EnergyLevels.controlBackground gray widgetDefault |
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23 | option add *EnergyLevels.shadeColor gray widgetDefault |
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24 | option add *EnergyLevels.levelColor black widgetDefault |
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25 | option add *EnergyLevels.levelTextForeground black widgetDefault |
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26 | option add *EnergyLevels.levelTextBackground white widgetDefault |
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27 | |
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28 | option add *EnergyLevels.font \ |
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29 | -*-helvetica-medium-r-normal-*-*-120-* widgetDefault |
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30 | |
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31 | itcl::class Rappture::EnergyLevels { |
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32 | inherit itk::Widget |
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33 | |
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34 | itk_option define -padding padding Padding 0 |
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35 | itk_option define -shadecolor shadeColor ShadeColor "" |
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36 | itk_option define -levelcolor levelColor LevelColor "" |
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37 | itk_option define -leveltextforeground levelTextForeground Foreground "" |
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38 | itk_option define -leveltextbackground levelTextBackground Background "" |
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39 | |
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40 | constructor {args} { # defined below } |
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41 | |
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42 | public proc columns {table} |
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43 | |
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44 | public method add {table {settings ""}} |
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45 | public method delete {args} |
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46 | public method scale {args} |
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47 | public method download {args} {} |
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48 | |
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49 | protected method _redraw {{what all}} |
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50 | protected method _zoom {option args} |
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51 | protected method _view {midE delE} |
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52 | protected method _hilite {option args} |
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53 | protected method _getLayout {} |
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54 | |
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55 | private variable _dispatcher "" ;# dispatcher for !events |
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56 | |
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57 | private variable _dlist "" ;# list of data objects |
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58 | private variable _dobj2color ;# maps data obj => color option |
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59 | private variable _dobj2raise ;# maps data obj => raise option |
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60 | private variable _dobj2cols ;# maps data obj => column names |
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61 | private variable _emin "" ;# autoscale min for energy |
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62 | private variable _emax "" ;# autoscale max for energy |
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63 | private variable _eviewmin "" ;# min for "zoom" view |
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64 | private variable _eviewmax "" ;# max for "zoom" view |
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65 | private variable _edefmin "" ;# min for default "zoom" view |
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66 | private variable _edefmax "" ;# max for default "zoom" view |
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67 | private variable _ehomo "" ;# energy of HOMO level in topmost dataset |
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68 | private variable _lhomo "" ;# label for HOMO level |
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69 | private variable _elumo "" ;# energy of LUMO level in topmost dataset |
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70 | private variable _llumo "" ;# label for LUMO level |
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71 | private variable _hilite "" ;# item currently highlighted |
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72 | } |
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73 | |
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74 | itk::usual EnergyLevels { |
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75 | keep -background -foreground -cursor -font |
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76 | } |
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77 | |
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78 | # ---------------------------------------------------------------------- |
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79 | # CONSTRUCTOR |
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80 | # ---------------------------------------------------------------------- |
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81 | itcl::body Rappture::EnergyLevels::constructor {args} { |
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82 | Rappture::dispatcher _dispatcher |
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83 | $_dispatcher register !redraw |
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84 | $_dispatcher dispatch $this !redraw "[itcl::code $this _redraw all]; list" |
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85 | $_dispatcher register !zoom |
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86 | $_dispatcher dispatch $this !zoom "[itcl::code $this _redraw zoom]; list" |
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87 | |
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88 | itk_option add hull.width hull.height |
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89 | pack propagate $itk_component(hull) no |
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90 | |
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91 | itk_component add controls { |
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92 | frame $itk_interior.cntls |
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93 | } { |
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94 | usual |
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95 | rename -background -controlbackground controlBackground Background |
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96 | } |
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97 | pack $itk_component(controls) -side right -fill y |
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98 | |
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99 | itk_component add reset { |
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100 | button $itk_component(controls).reset \ |
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101 | -borderwidth 1 -padx 1 -pady 1 \ |
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102 | -bitmap [Rappture::icon reset] \ |
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103 | -command [itcl::code $this _zoom reset] |
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104 | } { |
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105 | usual |
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106 | ignore -borderwidth |
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107 | rename -highlightbackground -controlbackground controlBackground Background } |
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108 | pack $itk_component(reset) -padx 4 -pady 4 |
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109 | Rappture::Tooltip::for $itk_component(reset) "Reset the view to the default zoom level" |
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110 | |
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111 | itk_component add zoomin { |
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112 | button $itk_component(controls).zin \ |
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113 | -borderwidth 1 -padx 1 -pady 1 \ |
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114 | -bitmap [Rappture::icon zoomin] \ |
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115 | -command [itcl::code $this _zoom in] |
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116 | } { |
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117 | usual |
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118 | ignore -borderwidth |
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119 | rename -highlightbackground -controlbackground controlBackground Background |
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120 | } |
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121 | pack $itk_component(zoomin) -padx 4 -pady 4 |
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122 | Rappture::Tooltip::for $itk_component(zoomin) "Zoom in" |
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123 | |
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124 | itk_component add zoomout { |
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125 | button $itk_component(controls).zout \ |
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126 | -borderwidth 1 -padx 1 -pady 1 \ |
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127 | -bitmap [Rappture::icon zoomout] \ |
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128 | -command [itcl::code $this _zoom out] |
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129 | } { |
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130 | usual |
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131 | ignore -borderwidth |
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132 | rename -highlightbackground -controlbackground controlBackground Background |
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133 | } |
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134 | pack $itk_component(zoomout) -padx 4 -pady 4 |
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135 | Rappture::Tooltip::for $itk_component(zoomout) "Zoom out" |
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136 | |
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137 | # |
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138 | # Add label for the title. |
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139 | # |
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140 | itk_component add title { |
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141 | label $itk_interior.title |
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142 | } |
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143 | pack $itk_component(title) -side top |
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144 | |
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145 | # |
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146 | # Add graph showing levels |
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147 | # |
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148 | itk_component add graph { |
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149 | canvas $itk_interior.graph -highlightthickness 0 |
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150 | } { |
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151 | usual |
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152 | ignore -highlightthickness |
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153 | } |
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154 | pack $itk_component(graph) -expand yes -fill both |
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155 | |
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156 | bind $itk_component(graph) <Configure> \ |
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157 | [list $_dispatcher event -idle !redraw] |
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158 | |
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159 | bind $itk_component(graph) <ButtonPress-1> \ |
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160 | [itcl::code $this _zoom at %x %y] |
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161 | bind $itk_component(graph) <B1-Motion> \ |
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162 | [itcl::code $this _zoom at %x %y] |
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163 | |
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164 | bind $itk_component(graph) <Motion> \ |
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165 | [itcl::code $this _hilite brush %x %y] |
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166 | bind $itk_component(graph) <Leave> \ |
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167 | [itcl::code $this _hilite hide] |
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168 | |
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169 | bind $itk_component(graph) <KeyPress-Up> \ |
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170 | [itcl::code $this _zoom nudge 1] |
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171 | bind $itk_component(graph) <KeyPress-Right> \ |
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172 | [itcl::code $this _zoom nudge 1] |
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173 | bind $itk_component(graph) <KeyPress-plus> \ |
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174 | [itcl::code $this _zoom nudge 1] |
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175 | |
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176 | bind $itk_component(graph) <KeyPress-Down> \ |
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177 | [itcl::code $this _zoom nudge -1] |
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178 | bind $itk_component(graph) <KeyPress-Left> \ |
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179 | [itcl::code $this _zoom nudge -1] |
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180 | bind $itk_component(graph) <KeyPress-minus> \ |
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181 | [itcl::code $this _zoom nudge -1] |
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182 | |
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183 | eval itk_initialize $args |
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184 | } |
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185 | |
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186 | # ---------------------------------------------------------------------- |
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187 | # USAGE: columns <table> |
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188 | # |
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189 | # Clients use this to scan a <table> XML object and see if it contains |
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190 | # columns for energy levels. If so, it returns a list of two column |
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191 | # names: {labels energies}. |
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192 | # ---------------------------------------------------------------------- |
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193 | itcl::body Rappture::EnergyLevels::columns {dataobj} { |
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194 | set names [$dataobj columns -component] |
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195 | set epos [lsearch -exact $names column(levels)] |
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196 | if {$epos >= 0} { |
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197 | set units [$dataobj columns -units $epos] |
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198 | if {![string match energy* [Rappture::Units::description $units]]} { |
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199 | set epos -1 |
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200 | } |
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201 | } |
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202 | |
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203 | # can't find column named "levels"? then look for column with energies |
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204 | if {$epos < 0} { |
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205 | set index 0 |
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206 | foreach units [$dataobj columns -units] { |
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207 | if {[string match energy* [Rappture::Units::description $units]]} { |
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208 | if {$epos >= 0} { |
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209 | # more than one energy column -- bail out |
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210 | set epos -1 |
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211 | break |
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212 | } |
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213 | set epos $index |
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214 | } |
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215 | incr index |
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216 | } |
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217 | } |
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218 | |
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219 | # look for a column with labels |
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220 | set lpos -1 |
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221 | set index 0 |
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222 | foreach units [$dataobj columns -units] { |
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223 | if {"" == $units} { |
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224 | set vals [$dataobj values -column $index] |
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225 | if {$lpos != $epos} { |
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226 | set lpos $index |
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227 | break |
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228 | } |
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229 | } |
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230 | incr index |
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231 | } |
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232 | |
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233 | if {$epos >= 0 || $lpos >= 0} { |
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234 | return [list [lindex $names $lpos] [lindex $names $epos]] |
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235 | } |
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236 | return "" |
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237 | } |
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238 | |
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239 | # ---------------------------------------------------------------------- |
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240 | # USAGE: add <dataobj> ?<settings>? |
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241 | # |
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242 | # Clients use this to add a data object to the plot. The optional |
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243 | # <settings> are used to configure the plot. Allowed settings are |
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244 | # -color, -brightness, -width, -linestyle and -raise. |
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245 | # ---------------------------------------------------------------------- |
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246 | itcl::body Rappture::EnergyLevels::add {dataobj {settings ""}} { |
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247 | # |
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248 | # Make sure this table contains energy levels. |
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249 | # |
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250 | set cols [Rappture::EnergyLevels::columns $dataobj] |
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251 | if {"" == $cols} { |
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252 | error "table \"$dataobj\" does not contain energy levels" |
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253 | } |
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254 | |
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255 | # |
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256 | # Scan through the settings and resolve all values. |
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257 | # |
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258 | array set params { |
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259 | -color auto |
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260 | -brightness 0 |
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261 | -width 1 |
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262 | -raise 0 |
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263 | -linestyle solid |
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264 | -description "" |
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265 | } |
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266 | foreach {opt val} $settings { |
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267 | if {![info exists params($opt)]} { |
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268 | error "bad setting \"$opt\": should be [join [lsort [array names params]] {, }]" |
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269 | } |
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270 | set params($opt) $val |
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271 | } |
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272 | |
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273 | # convert -linestyle to BLT -dashes |
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274 | switch -- $params(-linestyle) { |
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275 | dashed { set params(-linestyle) {4 4} } |
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276 | dotted { set params(-linestyle) {2 4} } |
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277 | default { set params(-linestyle) {} } |
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278 | } |
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279 | |
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280 | # if -brightness is set, then update the color |
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281 | if {$params(-brightness) != 0} { |
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282 | set params(-color) [Rappture::color::brightness \ |
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283 | $params(-color) $params(-brightness)] |
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284 | } |
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285 | if {$params(-color) == "auto" || $params(-color) == "autoreset"} { |
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286 | # can't handle -autocolors yet |
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287 | set params(-color) blue |
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288 | } |
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289 | |
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290 | set pos [lsearch -exact $dataobj $_dlist] |
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291 | if {$pos < 0} { |
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292 | lappend _dlist $dataobj |
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293 | set _dobj2color($dataobj) $params(-color) |
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294 | set _dobj2raise($dataobj) $params(-raise) |
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295 | |
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296 | foreach {lcol ecol} $cols break |
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297 | set _dobj2cols($dataobj-label) $lcol |
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298 | set _dobj2cols($dataobj-energy) $ecol |
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299 | |
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300 | $_dispatcher event -idle !redraw |
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301 | } |
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302 | } |
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303 | |
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304 | # ---------------------------------------------------------------------- |
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305 | # USAGE: delete ?<dataobj1> <dataobj2> ...? |
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306 | # |
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307 | # Clients use this to delete a dataobj from the plot. If no dataobjs |
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308 | # are specified, then all dataobjs are deleted. |
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309 | # ---------------------------------------------------------------------- |
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310 | itcl::body Rappture::EnergyLevels::delete {args} { |
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311 | if {[llength $args] == 0} { |
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312 | set args $_dlist |
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313 | } |
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314 | |
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315 | # delete all specified data objs |
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316 | set changed 0 |
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317 | foreach dataobj $args { |
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318 | set pos [lsearch -exact $_dlist $dataobj] |
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319 | if {$pos >= 0} { |
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320 | set _dlist [lreplace $_dlist $pos $pos] |
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321 | catch {unset _dobj2color($dataobj)} |
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322 | catch {unset _dobj2raise($dataobj)} |
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323 | catch {unset _dobj2cols($dataobj-label)} |
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324 | catch {unset _dobj2cols($dataobj-energy)} |
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325 | set changed 1 |
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326 | } |
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327 | } |
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328 | |
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329 | # if anything changed, then rebuild the plot |
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330 | if {$changed} { |
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331 | $_dispatcher event -idle !redraw |
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332 | } |
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333 | } |
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334 | |
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335 | # ---------------------------------------------------------------------- |
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336 | # USAGE: scale ?<dataobj1> <dataobj2> ...? |
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337 | # |
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338 | # Sets the default limits for the overall plot according to the |
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339 | # limits of the data for all of the given <dataobj> objects. This |
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340 | # accounts for all dataobjs--even those not showing on the screen. |
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341 | # Because of this, the limits are appropriate for all data as |
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342 | # the user scans through data in the ResultSet viewer. |
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343 | # ---------------------------------------------------------------------- |
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344 | itcl::body Rappture::EnergyLevels::scale {args} { |
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345 | set _emin "" |
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346 | set _emax "" |
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347 | foreach obj $args { |
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348 | if {![info exists _dobj2cols($obj-energy)]} { |
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349 | # don't recognize this object? then ignore it |
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350 | continue |
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351 | } |
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352 | foreach {min max} [$obj limits $_dobj2cols($obj-energy)] break |
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353 | |
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354 | if {"" != $min && "" != $max} { |
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355 | if {"" == $_emin} { |
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356 | set _emin $min |
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357 | set _emax $max |
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358 | } else { |
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359 | if {$min < $_emin} { set _emin $min } |
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360 | if {$max > $_emax} { set _emax $max } |
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361 | } |
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362 | } |
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363 | } |
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364 | set _eviewmin "" ;# reset zoom view |
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365 | set _eviewmax "" |
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366 | } |
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367 | |
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368 | # ---------------------------------------------------------------------- |
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369 | # USAGE: _redraw |
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370 | # |
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371 | # Used internally to load a list of energy levels from a <table> within |
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372 | # the data objects. |
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373 | # ---------------------------------------------------------------------- |
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374 | itcl::body Rappture::EnergyLevels::_redraw {{what all}} { |
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375 | # scale data now, if we haven't already |
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376 | if {"" == $_emin || "" == $_emax} { |
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377 | eval scale $_dlist |
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378 | } |
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379 | |
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380 | # put the dataobj list in order according to -raise options |
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381 | set dlist $_dlist |
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382 | foreach obj $dlist { |
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383 | if {[info exists _dobj2raise($obj)] && $_dobj2raise($obj)} { |
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384 | set i [lsearch -exact $dlist $obj] |
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385 | if {$i >= 0} { |
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386 | set dlist [lreplace $dlist $i $i] |
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387 | lappend dlist $obj |
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388 | } |
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389 | } |
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390 | } |
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391 | set topdobj [lindex $dlist end] |
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392 | |
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393 | _getLayout |
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394 | |
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395 | # |
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396 | # Redraw the overall layout |
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397 | # |
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398 | if {$what == "all"} { |
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399 | $c delete all |
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400 | if {[llength $dlist] == 0} { |
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401 | return |
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402 | } |
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403 | |
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404 | # |
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405 | # Scan through all data objects and plot them in order from |
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406 | # the bottom up. |
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407 | # |
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408 | set e2y [expr {($yzoom1-$yzoom0)/($_emax-$_emin)}] |
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409 | |
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410 | set title "" |
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411 | set dataobj "" |
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412 | foreach dataobj $dlist { |
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413 | if {"" == $title} { |
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414 | set title [$dataobj hints label] |
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415 | } |
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416 | |
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417 | set ecol $_dobj2cols($dataobj-energy) |
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418 | set color $_dobj2color($dataobj) |
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419 | if {"" == $color} { |
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420 | set color $itk_option(-levelcolor) |
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421 | } |
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422 | set color [Rappture::color::brightness $color 0.7] |
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423 | |
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424 | foreach eval [$dataobj values -column $ecol] { |
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425 | set y [expr {($eval-$_emin)*$e2y + $yzoom0}] |
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426 | $c create line $xx0 $y $xx1 $y -fill $color -width 1 |
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427 | } |
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428 | } |
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429 | |
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430 | # |
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431 | # Scan through the data and look for HOMO/LUMO levels. |
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432 | # Set the default view to the energy just above and |
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433 | # just below the HOMO/LUMO levels. |
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434 | # |
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435 | set _edefmin [expr {0.4*($_emax-$_emin) + $_emin}] |
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436 | set _edefmax [expr {0.6*($_emax-$_emin) + $_emin}] |
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437 | |
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438 | set nlumo -1 |
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439 | set nhomo -1 |
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440 | |
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441 | set dataobj [lindex $dlist end] |
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442 | if {"" != $dataobj} { |
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443 | set lcol $_dobj2cols($dataobj-label) |
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444 | set ecol $_dobj2cols($dataobj-energy) |
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445 | set units [$dataobj columns -units $ecol] |
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446 | |
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447 | set n 0 |
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448 | foreach eval [$dataobj values -column $ecol] \ |
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449 | lval [$dataobj values -column $lcol] { |
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450 | |
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451 | if {[string equal -nocase $lval "HOMO"]} { |
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452 | set nhomo $n |
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453 | set _lhomo $lval |
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454 | set nlumo [expr {$n+1}] |
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455 | set _llumo "LUMO" |
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456 | } elseif {[string equal -nocase $lval "Ground State"]} { |
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457 | set nhomo $n |
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458 | set _lhomo $lval |
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459 | set nlumo [expr {$n+1}] |
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460 | set _llumo "1st Excited State" |
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461 | } elseif {[string equal -nocase $lval "LUMO"] |
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462 | || [string equal -nocase $lval "1st Excited State"]} { |
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463 | set nlumo $n |
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464 | set _llumo $lval |
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465 | } |
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466 | incr n |
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467 | } |
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468 | |
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469 | if {$nhomo >= 0 && $nlumo >= 0} { |
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470 | set elist [$dataobj values -column $ecol] |
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471 | set _ehomo [lindex $elist $nhomo] |
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472 | set _elumo [lindex $elist $nlumo] |
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473 | set gap [expr {$_elumo - $_ehomo}] |
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474 | set _edefmin [expr {$_ehomo - 0.3*$gap}] |
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475 | set _edefmax [expr {$_elumo + 0.3*$gap}] |
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476 | |
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477 | set y [expr {($_ehomo-$_emin)*$e2y + $yzoom0}] |
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478 | set id [$c create rectangle $xx0 $y $xx1 $y0 \ |
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479 | -stipple [Rappture::icon rdiag] \ |
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480 | -outline "" -fill $itk_option(-shadecolor)] |
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481 | $c lower $id |
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482 | } |
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483 | } |
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484 | if {"" == $_eviewmin || "" == $_eviewmax} { |
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485 | set _eviewmin $_edefmin |
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486 | set _eviewmax $_edefmax |
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487 | } |
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488 | |
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489 | if {"" != $title} { |
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490 | pack $itk_component(title) -side top -before $c |
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491 | $itk_component(title) configure -text $title |
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492 | } else { |
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493 | pack forget $itk_component(title) |
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494 | } |
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495 | |
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496 | # draw the lines for the "zoom" view (fixed up below) |
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497 | set color $itk_option(-foreground) |
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498 | $c create line $x0 $yzoom0 $x1 $yzoom0 -fill $color -tags zmin |
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499 | $c create line $x0 $yzoom0 $x1 $yzoom0 -fill $color -tags zmax |
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500 | |
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501 | $c create line $x1 $yzoom0 $x2 $yzoom0 -fill $color -tags zoomup |
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502 | $c create line $x1 $yzoom0 $x2 $yzoom1 -fill $color -tags zoomdn |
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503 | |
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504 | $c create line $x2 $yzoom0 $x3 $yzoom0 -fill $color |
---|
505 | $c create line $x2 $yzoom1 $x3 $yzoom1 -fill $color |
---|
506 | } |
---|
507 | |
---|
508 | # |
---|
509 | # Redraw the "zoom" area on the right side |
---|
510 | # |
---|
511 | if {$what == "zoom" || $what == "all"} { |
---|
512 | set e2y [expr {($yzoom1-$yzoom0)/($_emax-$_emin)}] |
---|
513 | |
---|
514 | set y [expr {($_eviewmin-$_emin)*$e2y + $yzoom0}] |
---|
515 | $c coords zmin $x0 $y $x1 $y |
---|
516 | $c coords zoomup $x1 $y $x2 $yzoom0 |
---|
517 | |
---|
518 | set y [expr {($_eviewmax-$_emin)*$e2y + $yzoom0}] |
---|
519 | $c coords zmax $x0 $y $x1 $y |
---|
520 | $c coords zoomdn $x1 $y $x2 $yzoom1 |
---|
521 | |
---|
522 | # redraw all levels in the current view |
---|
523 | $c delete zlevels zlabels |
---|
524 | |
---|
525 | set e2y [expr {($yzoom1-$yzoom0)/($_eviewmax-$_eviewmin)}] |
---|
526 | foreach dataobj $dlist { |
---|
527 | set ecol $_dobj2cols($dataobj-energy) |
---|
528 | set color $_dobj2color($dataobj) |
---|
529 | if {"" == $color} { |
---|
530 | set color $itk_option(-levelcolor) |
---|
531 | } |
---|
532 | |
---|
533 | set n 0 |
---|
534 | foreach eval [$dataobj values -column $ecol] { |
---|
535 | set y [expr {($eval-$_eviewmin)*$e2y + $yzoom0}] |
---|
536 | if {$y >= $y1 && $y <= $y0} { |
---|
537 | set id [$c create line $xx2 $y $xx3 $y \ |
---|
538 | -fill $color -width 1 \ |
---|
539 | -tags [list zlevels $dataobj-$n]] |
---|
540 | } |
---|
541 | incr n |
---|
542 | } |
---|
543 | } |
---|
544 | |
---|
545 | if {"" != $_ehomo && "" != $_elumo} { |
---|
546 | set ecol $_dobj2cols($topdobj-energy) |
---|
547 | set units [$topdobj columns -units $ecol] |
---|
548 | |
---|
549 | set yy0 [expr {($_ehomo-$_eviewmin)*$e2y + $yzoom0}] |
---|
550 | set yy1 [expr {($_elumo-$_eviewmin)*$e2y + $yzoom0}] |
---|
551 | |
---|
552 | set textht [font metrics $itk_option(-font) -linespace] |
---|
553 | if {$yy0-$yy1 >= 1.5*$textht} { |
---|
554 | $c create line [expr {$x3-10}] $yy0 [expr {$x3-10}] $yy1 \ |
---|
555 | -arrow both -fill $itk_option(-foreground) \ |
---|
556 | -tags zlabels |
---|
557 | $c create text [expr {$x3-15}] [expr {0.5*($yy0+$yy1)}] \ |
---|
558 | -anchor e -text "Eg = [expr {$_elumo-$_ehomo}] $units" \ |
---|
559 | -tags zlabels |
---|
560 | |
---|
561 | # label the HOMO level |
---|
562 | set tid [$c create text [expr {0.5*($x2+$x3)}] $yy0 -anchor c \ |
---|
563 | -text "$_lhomo = $_ehomo $units" \ |
---|
564 | -fill $itk_option(-leveltextforeground) \ |
---|
565 | -tags zlabels] |
---|
566 | |
---|
567 | foreach {xb0 yb0 xb1 yb1} [$c bbox $tid] break |
---|
568 | set tid2 [$c create rectangle \ |
---|
569 | [expr {$xb0-1}] [expr {$yb0-1}] \ |
---|
570 | [expr {$xb1+1}] [expr {$yb1+1}] \ |
---|
571 | -outline $itk_option(-leveltextforeground) \ |
---|
572 | -fill $itk_option(-leveltextbackground) \ |
---|
573 | -tags zlabels] |
---|
574 | $c lower $tid2 $tid |
---|
575 | |
---|
576 | # label the LUMO level |
---|
577 | set tid [$c create text [expr {0.5*($x2+$x3)}] $yy1 -anchor c \ |
---|
578 | -text "$_llumo = $_elumo $units" \ |
---|
579 | -fill $itk_option(-leveltextforeground) \ |
---|
580 | -tags zlabels] |
---|
581 | |
---|
582 | foreach {xb0 yb0 xb1 yb1} [$c bbox $tid] break |
---|
583 | set tid2 [$c create rectangle \ |
---|
584 | [expr {$xb0-1}] [expr {$yb0-1}] \ |
---|
585 | [expr {$xb1+1}] [expr {$yb1+1}] \ |
---|
586 | -outline $itk_option(-leveltextforeground) \ |
---|
587 | -fill $itk_option(-leveltextbackground) \ |
---|
588 | -tags zlabels] |
---|
589 | $c lower $tid2 $tid |
---|
590 | } |
---|
591 | |
---|
592 | if {$yy0 < $y0} { |
---|
593 | set id [$c create rectangle $xx2 $yy0 $xx3 $y0 \ |
---|
594 | -stipple [Rappture::icon rdiag] \ |
---|
595 | -outline "" -fill $itk_option(-shadecolor) \ |
---|
596 | -tags zlabels] |
---|
597 | $c lower $id |
---|
598 | } |
---|
599 | } |
---|
600 | } |
---|
601 | } |
---|
602 | |
---|
603 | # ---------------------------------------------------------------------- |
---|
604 | # USAGE: _zoom in |
---|
605 | # USAGE: _zoom out |
---|
606 | # USAGE: _zoom reset |
---|
607 | # USAGE: _zoom at <x> <y> |
---|
608 | # USAGE: _zoom nudge <dir> |
---|
609 | # |
---|
610 | # Called automatically when the user clicks on one of the zoom |
---|
611 | # controls for this widget. Changes the zoom for the current view. |
---|
612 | # ---------------------------------------------------------------------- |
---|
613 | itcl::body Rappture::EnergyLevels::_zoom {option args} { |
---|
614 | switch -- $option { |
---|
615 | in { |
---|
616 | set midE [expr {0.5*($_eviewmax + $_eviewmin)}] |
---|
617 | set delE [expr {0.8*($_eviewmax - $_eviewmin)}] |
---|
618 | _view $midE $delE |
---|
619 | } |
---|
620 | out { |
---|
621 | set midE [expr {0.5*($_eviewmax + $_eviewmin)}] |
---|
622 | set delE [expr {1.25*($_eviewmax - $_eviewmin)}] |
---|
623 | _view $midE $delE |
---|
624 | } |
---|
625 | reset { |
---|
626 | set _eviewmin $_edefmin |
---|
627 | set _eviewmax $_edefmax |
---|
628 | $_dispatcher event -idle !zoom |
---|
629 | } |
---|
630 | at { |
---|
631 | if {[llength $args] != 2} { |
---|
632 | error "wrong # args: should be \"_zoom at x y\"" |
---|
633 | } |
---|
634 | set x [lindex $args 0] |
---|
635 | set y [lindex $args 1] |
---|
636 | |
---|
637 | _getLayout |
---|
638 | set y2e [expr {($_emax-$_emin)/($yzoom1-$yzoom0)}] |
---|
639 | |
---|
640 | if {$x > $x1} { |
---|
641 | return |
---|
642 | } |
---|
643 | set midE [expr {($y-$yzoom0)*$y2e + $_emin}] |
---|
644 | set delE [expr {$_eviewmax - $_eviewmin}] |
---|
645 | _view $midE $delE |
---|
646 | } |
---|
647 | nudge { |
---|
648 | if {[llength $args] != 1} { |
---|
649 | error "wrong # args: should be \"_zoom nudge dir\"" |
---|
650 | } |
---|
651 | set dir [lindex $args 0] |
---|
652 | |
---|
653 | set midE [expr {0.5*($_eviewmax + $_eviewmin)}] |
---|
654 | set delE [expr {$_eviewmax - $_eviewmin}] |
---|
655 | set midE [expr {$midE + $dir*0.25*$delE}] |
---|
656 | _view $midE $delE |
---|
657 | } |
---|
658 | } |
---|
659 | focus $itk_component(graph) |
---|
660 | } |
---|
661 | |
---|
662 | # ---------------------------------------------------------------------- |
---|
663 | # USAGE: _view <midE> <delE> |
---|
664 | # |
---|
665 | # Called automatically when the user clicks/drags on the left side |
---|
666 | # of the widget where energy levels are displayed. Sets the zoom |
---|
667 | # view so that it's centered on the <y> coordinate. |
---|
668 | # ---------------------------------------------------------------------- |
---|
669 | itcl::body Rappture::EnergyLevels::_view {midE delE} { |
---|
670 | if {$delE > $_emax-$_emin} { |
---|
671 | set delE [expr {$_emax - $_emin}] |
---|
672 | } |
---|
673 | if {$midE - 0.5*$delE < $_emin} { |
---|
674 | set _eviewmin $_emin |
---|
675 | set _eviewmax [expr {$_eviewmin+$delE}] |
---|
676 | } elseif {$midE + 0.5*$delE > $_emax} { |
---|
677 | set _eviewmax $_emax |
---|
678 | set _eviewmin [expr {$_eviewmax-$delE}] |
---|
679 | } else { |
---|
680 | set _eviewmin [expr {$midE - 0.5*$delE}] |
---|
681 | set _eviewmax [expr {$midE + 0.5*$delE}] |
---|
682 | } |
---|
683 | $_dispatcher event -idle !zoom |
---|
684 | } |
---|
685 | |
---|
686 | # ---------------------------------------------------------------------- |
---|
687 | # USAGE: _hilite brush <x> <y> |
---|
688 | # USAGE: _hilite show <dataobj> <level> |
---|
689 | # USAGE: _hilite hide |
---|
690 | # |
---|
691 | # Used internally to highlight energy levels in the zoom view and |
---|
692 | # show their associated energy. The "brush" operation is called |
---|
693 | # as the mouse moves in the zoom view, to see if the <x>,<y> |
---|
694 | # coordinate is touching a level. The show/hide operations are |
---|
695 | # then used to show/hide level info. |
---|
696 | # ---------------------------------------------------------------------- |
---|
697 | itcl::body Rappture::EnergyLevels::_hilite {option args} { |
---|
698 | switch -- $option { |
---|
699 | brush { |
---|
700 | if {[llength $args] != 2} { |
---|
701 | error "wrong # args: should be \"_hilite brush x y\"" |
---|
702 | } |
---|
703 | set x [lindex $args 0] |
---|
704 | set y [lindex $args 1] |
---|
705 | |
---|
706 | _getLayout |
---|
707 | if {$x < $x2 || $x > $x3} { |
---|
708 | return ;# pointer must be in "zoom" area |
---|
709 | } |
---|
710 | |
---|
711 | set c $itk_component(graph) |
---|
712 | set id [$c find withtag current] |
---|
713 | |
---|
714 | # touching a line? then find the level and show its info |
---|
715 | if {"" != $id} { |
---|
716 | set e2y [expr {($yzoom1-$yzoom0)/($_eviewmax-$_eviewmin)}] |
---|
717 | |
---|
718 | # put the dataobj list in order according to -raise options |
---|
719 | set dlist $_dlist |
---|
720 | foreach obj $dlist { |
---|
721 | if {[info exists _dobj2raise($obj)] && $_dobj2raise($obj)} { |
---|
722 | set i [lsearch -exact $dlist $obj] |
---|
723 | if {$i >= 0} { |
---|
724 | set dlist [lreplace $dlist $i $i] |
---|
725 | lappend dlist $obj |
---|
726 | } |
---|
727 | } |
---|
728 | } |
---|
729 | |
---|
730 | set found 0 |
---|
731 | foreach dataobj $dlist { |
---|
732 | set ecol $_dobj2cols($dataobj-energy) |
---|
733 | set n 0 |
---|
734 | foreach eval [$dataobj values -column $ecol] { |
---|
735 | set ylevel [expr {($eval-$_eviewmin)*$e2y + $yzoom0}] |
---|
736 | if {$y >= $ylevel-3 && $y <= $ylevel+3} { |
---|
737 | set found 1 |
---|
738 | break |
---|
739 | } |
---|
740 | incr n |
---|
741 | } |
---|
742 | if {$found} break |
---|
743 | } |
---|
744 | if {$found} { |
---|
745 | _hilite show $dataobj $n |
---|
746 | } else { |
---|
747 | _hilite hide |
---|
748 | } |
---|
749 | } else { |
---|
750 | _hilite hide |
---|
751 | } |
---|
752 | } |
---|
753 | show { |
---|
754 | if {[llength $args] != 2} { |
---|
755 | error "wrong # args: should be \"_hilite show dataobj level\"" |
---|
756 | } |
---|
757 | set dataobj [lindex $args 0] |
---|
758 | set level [lindex $args 1] |
---|
759 | |
---|
760 | if {$_hilite == "$dataobj $level"} { |
---|
761 | return |
---|
762 | } |
---|
763 | _hilite hide |
---|
764 | |
---|
765 | set lcol $_dobj2cols($dataobj-label) |
---|
766 | set lval [lindex [$dataobj values -column $lcol] $level] |
---|
767 | set ecol $_dobj2cols($dataobj-energy) |
---|
768 | set eval [lindex [$dataobj values -column $ecol] $level] |
---|
769 | set units [$dataobj columns -units $ecol] |
---|
770 | |
---|
771 | if {$eval == $_ehomo || $eval == $_elumo} { |
---|
772 | $itk_component(graph) itemconfigure $dataobj-$level -width 2 |
---|
773 | set _hilite "$dataobj $level" |
---|
774 | # don't pop up info for the HOMO/LUMO levels |
---|
775 | return |
---|
776 | } |
---|
777 | |
---|
778 | _getLayout |
---|
779 | set e2y [expr {($yzoom1-$yzoom0)/($_eviewmax-$_eviewmin)}] |
---|
780 | set y [expr {($eval-$_eviewmin)*$e2y + $yzoom0}] |
---|
781 | |
---|
782 | set tid [$c create text [expr {0.5*($x2+$x3)}] $y -anchor c \ |
---|
783 | -text "$lval = $eval $units" \ |
---|
784 | -fill $itk_option(-leveltextforeground) \ |
---|
785 | -tags hilite] |
---|
786 | |
---|
787 | foreach {x0 y0 x1 y1} [$c bbox $tid] break |
---|
788 | set tid2 [$c create rectangle \ |
---|
789 | [expr {$x0-1}] [expr {$y0-1}] \ |
---|
790 | [expr {$x1+1}] [expr {$y1+1}] \ |
---|
791 | -outline $itk_option(-leveltextforeground) \ |
---|
792 | -fill $itk_option(-leveltextbackground) \ |
---|
793 | -tags hilite] |
---|
794 | $c lower $tid2 $tid |
---|
795 | |
---|
796 | $c itemconfigure $dataobj-$level -width 2 |
---|
797 | set _hilite "$dataobj $level" |
---|
798 | } |
---|
799 | hide { |
---|
800 | if {"" != $_hilite} { |
---|
801 | $itk_component(graph) delete hilite |
---|
802 | $itk_component(graph) itemconfigure zlevels -width 1 |
---|
803 | set _hilite "" |
---|
804 | } |
---|
805 | } |
---|
806 | default { |
---|
807 | error "bad option \"$option\": should be brush, show, hide" |
---|
808 | } |
---|
809 | } |
---|
810 | } |
---|
811 | |
---|
812 | # ---------------------------------------------------------------------- |
---|
813 | # USAGE: _getLayout |
---|
814 | # |
---|
815 | # Used internally to compute a series of variables used when redrawing |
---|
816 | # the widget. Creates the variables with the proper values in the |
---|
817 | # calling context. |
---|
818 | # ---------------------------------------------------------------------- |
---|
819 | itcl::body Rappture::EnergyLevels::_getLayout {} { |
---|
820 | upvar c c |
---|
821 | set c $itk_component(graph) |
---|
822 | |
---|
823 | upvar w w |
---|
824 | set w [winfo width $c] |
---|
825 | |
---|
826 | upvar h h |
---|
827 | set h [winfo height $c] |
---|
828 | |
---|
829 | # |
---|
830 | # Measure the size of a typical label and use that to size |
---|
831 | # the left/right portions. If the label is too big, leave |
---|
832 | # at least a little room for the labels. |
---|
833 | # |
---|
834 | set size [font measure $itk_option(-font) "$_llumo = X.XXXXXXe-XX eV"] |
---|
835 | set size [expr {$size + 6*$itk_option(-padding)}] |
---|
836 | |
---|
837 | set textht [font metrics $itk_option(-font) -linespace] |
---|
838 | set ypad [expr {int(0.5*($textht + 6))}] |
---|
839 | |
---|
840 | if {$size > $w-20} { |
---|
841 | set size [expr {$w-20}] |
---|
842 | } elseif {$size < 0.66*$w} { |
---|
843 | set size [expr {0.66*$w}] |
---|
844 | } |
---|
845 | set xm [expr {$w - $size}] |
---|
846 | |
---|
847 | upvar x0 x0 |
---|
848 | set x0 $itk_option(-padding) |
---|
849 | |
---|
850 | upvar x1 x1 |
---|
851 | set x1 [expr {$xm - $itk_option(-padding)}] |
---|
852 | |
---|
853 | upvar x2 x2 |
---|
854 | set x2 [expr {$xm + $itk_option(-padding)}] |
---|
855 | |
---|
856 | upvar x3 x3 |
---|
857 | set x3 [expr {$w - $itk_option(-padding)}] |
---|
858 | |
---|
859 | |
---|
860 | upvar xx0 xx0 |
---|
861 | set xx0 [expr {$x0 + $itk_option(-padding)}] |
---|
862 | |
---|
863 | upvar xx1 xx1 |
---|
864 | set xx1 [expr {$x1 - $itk_option(-padding)}] |
---|
865 | |
---|
866 | upvar xx2 xx2 |
---|
867 | set xx2 [expr {$x2 + $itk_option(-padding)}] |
---|
868 | |
---|
869 | upvar xx3 xx3 |
---|
870 | set xx3 [expr {$x3 - $itk_option(-padding)}] |
---|
871 | |
---|
872 | |
---|
873 | upvar y0 y0 |
---|
874 | set y0 [expr {$h - $itk_option(-padding)}] |
---|
875 | |
---|
876 | upvar yzoom0 yzoom0 |
---|
877 | set yzoom0 [expr {$y0 - $ypad}] |
---|
878 | |
---|
879 | upvar y1 y1 |
---|
880 | set y1 $itk_option(-padding) |
---|
881 | |
---|
882 | upvar yzoom1 yzoom1 |
---|
883 | set yzoom1 [expr {$y1 + $ypad}] |
---|
884 | } |
---|
885 | |
---|
886 | # ---------------------------------------------------------------------- |
---|
887 | # OPTION: -levelColor |
---|
888 | # ---------------------------------------------------------------------- |
---|
889 | itcl::configbody Rappture::EnergyLevels::levelcolor { |
---|
890 | $_dispatcher event -idle !redraw |
---|
891 | } |
---|
892 | |
---|
893 | # ---------------------------------------------------------------------- |
---|
894 | # OPTION: -leveltextforeground |
---|
895 | # ---------------------------------------------------------------------- |
---|
896 | itcl::configbody Rappture::EnergyLevels::leveltextforeground { |
---|
897 | $_dispatcher event -idle !redraw |
---|
898 | } |
---|
899 | |
---|
900 | # ---------------------------------------------------------------------- |
---|
901 | # OPTION: -leveltextbackground |
---|
902 | # ---------------------------------------------------------------------- |
---|
903 | itcl::configbody Rappture::EnergyLevels::leveltextbackground { |
---|
904 | $_dispatcher event -idle !redraw |
---|
905 | } |
---|