1 | ; |
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2 | ;+ |
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3 | ; NAME: |
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4 | ; SHOWTEX |
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5 | ; PURPOSE: |
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6 | ; Display TeX sequence translation table on current graphics device. |
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7 | ; CATEGORY: |
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8 | ; text/strings |
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9 | ; CALLING SEQUENCE: |
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10 | ; showtex |
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11 | ; INPUTS: |
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12 | ; KEYWORD PARAMETERS: |
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13 | ; /HELP -- print out info on use of the function |
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14 | ; and exit. |
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15 | ; FONT -- Set to 0 to use hardware font, -1 to use vector. |
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16 | ; Note that the only hardware font supported is |
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17 | ; Postscript |
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18 | ; OUTPUTS: |
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19 | ; COMMON BLOCKS: |
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20 | ; SIDE EFFECTS: |
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21 | ; Plot is created. |
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22 | ; NOTES: |
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23 | ; Hardware fonts are supported only for device PS (PostScript) |
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24 | ; EXAMPLE: |
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25 | ; MODIFICATION HISTORY: |
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26 | ; $Id$ |
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27 | ; $Log: showtex.pro,v $ |
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28 | ; Revision 1.4 2004/06/15 17:25:54 mcraig |
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29 | ; Fixed bug in regular expression, changed array notation to square brackets |
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30 | ; |
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31 | ; Revision 1.3 1996/06/14 20:00:27 mcraig |
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32 | ; Updated Copyright info. |
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33 | ; |
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34 | ; Revision 1.2 1996/05/09 00:22:17 mcraig |
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35 | ; Added error handling and updated built in help. |
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36 | ; |
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37 | ; Revision 1.1 1996/02/08 18:55:12 mcraig |
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38 | ; Initial revision |
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39 | ; |
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40 | ; RELEASE: |
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41 | ; $Name: Rel_2_1_2 $ |
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42 | ; |
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43 | ; COPYRIGHT: |
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44 | ; Copyright (C) 1996 The Regents of the University of California, All |
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45 | ; Rights Reserved. Written by Matthew W. Craig. |
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46 | ; See the file COPYRIGHT for restrictions on distrubting this code. |
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47 | ; This code comes with absolutely NO warranty; see DISCLAIMER for details. |
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48 | ;- |
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49 | ; |
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50 | PRO Showtex, FONT=fnt, HELP=help |
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51 | ; |
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52 | compile_opt idl2, strictarrsubs |
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53 | ; |
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54 | |
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55 | ; Return to caller on error. |
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56 | On_error, 2 |
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57 | |
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58 | ; Print help if needed. |
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59 | IF keyword_set(help) THEN BEGIN |
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60 | print, ' Display TeX sequence translation table on current graphics device.' |
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61 | print, ' showtex' |
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62 | print, ' Keywords:' |
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63 | print, ' /HELP print this message and return' |
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64 | print, ' FONT set to 0 to use hardware fonts for current device,' |
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65 | print, ' -1 to use vector fonts (DEFAULT)' |
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66 | print, ' NOTES: - The only hardware font supported is PostScript.' |
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67 | print, ' - The FONT keyword overrides the font selected in !p.font' |
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68 | return |
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69 | ENDIF |
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70 | |
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71 | ; We begin by deciding on the font. PostScript = 0 means use vector. |
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72 | PostScript = 0 |
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73 | PlotTitle = 'Vector Fonts' |
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74 | IF n_elements(fnt) EQ 0 THEN BEGIN ; get font from !p.font |
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75 | IF !P.font NE -1 THEN BEGIN ; User wants hardware font. |
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76 | PostScript = 1 |
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77 | PlotTitle = 'PostScript Fonts' |
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78 | ENDIF |
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79 | ENDIF ELSE BEGIN ; get font from FONT keyword |
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80 | IF fnt NE -1 THEN BEGIN |
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81 | PostScript = 1 |
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82 | PlotTitle = 'PostScript Fonts' |
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83 | ENDIF |
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84 | ENDELSE |
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85 | |
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86 | ; Bomb out if user wants hardware font for non-PostScript device. |
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87 | IF (PostScript EQ 1) AND (strupcase(!D.name) NE 'PS') THEN BEGIN |
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88 | ; Device isn't postscript |
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89 | ; and user wants hardware |
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90 | ; font. Not good. |
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91 | print, 'Warning: No translation for device: ', !D.name |
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92 | return |
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93 | ENDIF |
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94 | |
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95 | ; Set !P.font to value indicated by FONT keyword, saving surrent |
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96 | ; setting to reset at end. |
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97 | OldPFont = !p.font |
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98 | !p.font = PostScript - 1 |
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99 | |
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100 | erase |
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101 | seq = textoidl(/tex) |
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102 | DisplayString = seq + ' ' + textoidl(seq) |
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103 | |
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104 | nseq = n_elements(seq) |
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105 | nrows = nseq/5 + 1 ; Five sequences per row. |
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106 | dx = .9/5. |
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107 | dy = .9/nrows |
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108 | y=.95 |
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109 | xyouts,.5,y,PlotTitle,align=.5,/norm,size=2.5 |
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110 | count=0 |
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111 | FOR i = 1L, nrows DO BEGIN |
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112 | y= y - dy |
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113 | x = .1 |
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114 | FOR j = 1, 5 DO BEGIN |
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115 | IF (count LT nseq ) THEN xyouts, x, y, DisplayString[count], align = .5, /norm |
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116 | count = count+1 |
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117 | x = x + dx |
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118 | ENDFOR |
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119 | ENDFOR |
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120 | |
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121 | ; Restore old !P.font. |
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122 | !p.font = OldPFont |
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123 | END |
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