1 | ;------------------------------------------------------------ |
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2 | ;------------------------------------------------------------ |
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3 | ;------------------------------------------------------------ |
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4 | ;+ |
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5 | ; NAME: cw_slider_pm |
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6 | ; |
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7 | ; PURPOSE: widget equivalent a WIDGET_SLIDER sauf qu'en plus on |
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8 | ; dispose de 2 bouttons + et - pour deplacer le widget de +/- 1. |
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9 | ; |
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10 | ; CATEGORY: compound widget (aide a l''ecriture des widgets) |
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11 | ; |
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12 | ; CALLING SEQUENCE: id=cw_slider_pm(parent) |
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13 | ; |
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14 | ; INPUTS: |
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15 | ; Parent: The widget ID of the parent widget. |
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16 | ; |
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17 | ; KEYWORD PARAMETERS:tous ceux de WIDGET_SLIDER |
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18 | ; |
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19 | ; OUTPUTS: |
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20 | ; The returned value of this function is the widget ID of the |
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21 | ; newly-created animation widget. |
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22 | ; |
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23 | ; COMMON BLOCKS: none |
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24 | ; |
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25 | ; SIDE EFFECTS: |
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26 | ; |
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27 | ; Widget Events Returned by the CW_SLIDER_PM Widget |
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28 | ; |
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29 | ; Slider widgets generate events when the mouse is used to change |
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30 | ; their value. The event structure returned by the WIDGET_EVENT |
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31 | ; function is defined by the following statement: |
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32 | ; |
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33 | ; {CW_SLIDER_PM, ID:0L, TOP:0L, HANDLER:0L, VALUE:0L, DRAG:0, OUT:0} |
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34 | ; |
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35 | ; ID is the widget ID of the button generating the event. TOP is the |
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36 | ; widget ID of the top level widget containing ID. |
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37 | ; HANDLER contains the widget ID of the widget associated with the |
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38 | ; handler routine. |
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39 | ; VALUE returns the new value of the slider. |
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40 | ; DRAG returns integer 1 if the slider event was generated as part of |
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41 | ; a drag operation, or zero if the event was generated when the user |
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42 | ; had finished positioning the slider. Note that the slider widget |
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43 | ; only generates events during the drag operation if the DRAG keyword |
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44 | ; is set, and if the application is running under Motif. When the |
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45 | ; DRAG keyword is set, the DRAG field can be used to avoid |
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46 | ; computationally expensive operations until the user releases the |
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47 | ; slider. |
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48 | ; OUT:c''est un entier qui peut prendre 3 valeurs: |
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49 | ; 1 : si on appuie sur + alors que le slider est deja aux max. rq: |
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50 | ; ds ce cas le slider reste au max |
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51 | ; -1: si on appuie sur - alors que le slider est deja aux min. rq: |
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52 | ; ds ce cas le slider reste au min |
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53 | ; 0 : ds les autres cas! |
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54 | ; |
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55 | ; Keywords to WIDGET_CONTROL |
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56 | ; |
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57 | ; A number of keywords to the WIDGET_CONTROL procedure affect the |
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58 | ; behavior of cw_slider_pm widget: GET_VALUE and SET_VALUE. |
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59 | ; 1) GET_VALUE |
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60 | ; widget_control,wid_id,get_value=resultat |
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61 | ; retourne ds la variable resultat une structure de 2 elements dont |
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62 | ; les noms sont inspires des mots cles que l''on peut passer a |
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63 | ; widget_control qd on utilise WIDGET_SLIDER: |
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64 | ; VALUE:the value setting of the widget |
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65 | ; SLIDER_MIN_MAX: a 2 elements array: The minimum and the |
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66 | ; maximum value of the range encompassed by the slider |
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67 | ; 2) SET_VALUE |
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68 | ; widget_control,wid_id,set_value=impose |
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69 | ; permet de modifier l''etat de la slider bar comme on peut le faire |
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70 | ; pour WIDGET_SLIDER. Impose peut etre: |
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71 | ; a) un entier: donne la nouvelle position of the slider. |
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72 | ; b) une structure qui peut avoir comme elements (de 1 a 3): |
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73 | ; VALUE:un entier qui donne la nouvelle position of the slider. |
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74 | ; SLIDER_MIN:Set to a new minimum value for the specified |
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75 | ; slider widget. |
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76 | ; SLIDER_MAX:Set to a new minimum value for the specified |
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77 | ; slider widget. |
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78 | ; |
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79 | ; RESTRICTIONS: |
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80 | ; |
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81 | ; EXAMPLE: cf utiliser le programme founit i-dessous: testwid et la |
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82 | ; procedure associee, testwid_event. |
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83 | ; |
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84 | ; MODIFICATION HISTORY:Sebastien Masson (smasson@lodyc.jussieu.fr) |
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85 | ; 5/9/1999 |
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86 | ;- |
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87 | ;------------------------------------------------------------ |
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88 | ;------------------------------------------------------------ |
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89 | ;------------------------------------------------------------ |
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90 | ; PRO testwid_event, event |
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91 | ; ; help, event, /STRUCT |
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92 | ; SliderBarId = widget_info(event.top,find_by_uname = 'c''est lui') |
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93 | ; widget_control, event.id, get_uvalue=uval |
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94 | ; if n_elements(uval) EQ 0 then return |
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95 | ; case uval of |
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96 | ; 'done':widget_control, event.top, /destroy |
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97 | ; 'slider_min':BEGIN |
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98 | ; widget_control, event.id, get_value = value |
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99 | ; widget_control, SliderBarId, set_value = {slider_min:value} |
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100 | ; END |
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101 | ; 'slider_max':BEGIN |
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102 | ; widget_control, event.id, get_value = value |
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103 | ; widget_control, SliderBarId, set_value = {slider_max:value} |
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104 | ; END |
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105 | ; 'slider_value':BEGIN |
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106 | ; widget_control, event.id, get_value = value |
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107 | ; widget_control, SliderBarId, set_value = value |
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108 | ; END |
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109 | ; 'get':BEGIN |
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110 | ; widget_control, SliderBarId, get_value = value |
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111 | ; help, value, /struct |
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112 | ; print, value.slider_min_max |
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113 | ; END |
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114 | ; ELSE: |
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115 | ; endcase |
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116 | ; return |
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117 | ; end |
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118 | ; PRO testwid, _extra = ex |
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119 | ; base=widget_base(/COLUMN) |
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120 | ; print, 'base=', base |
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121 | ; nothing = widget_label(base, value = 'beginning of the test') |
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122 | ; ; |
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123 | ; nothing = cw_slider_pm(base, _extra = ex, uname = 'c''est lui', uvalue = 'c''est lui') |
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124 | ; print, 'cw_slider_pm ID =', nothing |
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125 | ; ; |
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126 | ; nothing = widget_label(base, value = 'end of the test') |
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127 | ; nothing = widget_text(base, value = '0', uvalue = 'slider_min', /editable) |
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128 | ; nothing = widget_text(base, value = '10', uvalue = 'slider_max', /editable) |
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129 | ; nothing = widget_text(base, value = '5', uvalue = 'slider_value', /editable) |
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130 | ; nothing = widget_button(base, value = 'get', uvalue = 'get') |
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131 | ; nothing = widget_button(base, value = 'done', uvalue = 'done') |
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132 | ; widget_control, base, /REALIZE |
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133 | ; xmanager,'testwid', base |
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134 | ; return |
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135 | ; end |
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136 | ;---------------------------------------------------------------------- |
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137 | PRO cw_slider_pm_set_value, id, value |
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138 | SliderBarId = widget_info(id,find_by_uname = 'SliderBar') |
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139 | if size(value, /type) eq 8 then BEGIN ; this is a structure |
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140 | tagnames = tag_names(value) |
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141 | for tag = 0, n_tags(value)-1 do begin |
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142 | case strtrim(strlowcase(tagnames[tag]), 2) of |
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143 | 'slider_min':widget_control, SliderBarId, set_slider_min = value.slider_min |
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144 | 'slider_max':widget_control, SliderBarId, set_slider_max = value.slider_max |
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145 | 'value':widget_control, SliderBarId, set_value = value.value |
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146 | ELSE:ras = report('mauvais nom de l''argument de la structure ds cw_slider_pm_set_value') |
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147 | endcase |
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148 | endfor |
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149 | ENDIF ELSE widget_control, SliderBarId, set_value = value[0] |
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150 | return |
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151 | end |
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152 | ;---------------------------------------------------------------------- |
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153 | FUNCTION cw_slider_pm_get_value, id |
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154 | SliderBarId = widget_info(id,find_by_uname = 'SliderBar') |
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155 | widget_control, SliderBarId, get_value = value |
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156 | return, {value:value, slider_min_max:widget_info(SliderBarId, /slider_min_max)} |
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157 | end |
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158 | ;---------------------------------------------------------------------- |
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159 | FUNCTION cw_slider_pm_event, event |
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160 | widget_control, event.id, get_uvalue=uval |
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161 | ; |
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162 | if uval EQ 'SliderBar' then $ |
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163 | return, {CW_SLIDER_PM, ID:event.handler, TOP:event.top, HANDLER:0L $ |
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164 | , VALUE:event.value, OUT:0} |
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165 | ; |
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166 | SliderBarId = widget_info(event.handler,find_by_uname = 'SliderBar') |
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167 | minmax = widget_info(SliderBarId, /SLIDER_MIN_MAX) |
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168 | widget_control, SliderBarId, get_value = value |
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169 | case uval OF |
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170 | 'plus':BEGIN |
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171 | if value NE minmax[1] then widget_control, SliderBarId,set_value = value+1 |
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172 | return, {CW_SLIDER_PM, ID:event.handler, TOP:event.top, HANDLER:0L $ |
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173 | , VALUE:(value+1) < minmax[1], OUT:long(value eq minmax[1])} |
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174 | END |
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175 | 'minus':BEGIN |
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176 | if value NE minmax[0] then widget_control, SliderBarId,set_value = value-1 |
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177 | return, {CW_SLIDER_PM, ID:event.handler, TOP:event.top, HANDLER:0L $ |
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178 | , VALUE:0 > (value-1), OUT:-long(value EQ minmax[0])} |
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179 | END |
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180 | endcase |
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181 | end |
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182 | ;---------------------------------------------------------------------- |
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183 | FUNCTION cw_slider_pm, parent, ROW = row, COLUMN = column, VERTICAL = vertical, UVALUE = uvalue, UNAME = uname, _extra = ex |
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184 | |
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185 | IF (N_PARAMS() NE 1) THEN MESSAGE, 'Incorrect number of arguments' |
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186 | ON_ERROR, 2 ;return to caller |
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187 | ; |
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188 | ; cheking exclusive keywords |
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189 | column = (keyword_set(column)*(1-keyword_set(row))+keyword_set(vertical)) < 1 |
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190 | row = keyword_set(row)*(1-keyword_set(column)) +(keyword_set(row) EQ column) |
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191 | if NOT keyword_set(uvalue) then uvalue = '' |
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192 | if NOT keyword_set(uname) then uname = '' |
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193 | base = widget_base(parent, space = 1, xpad = 1, ypad = 1 $ |
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194 | , EVENT_FUNC = 'cw_slider_pm_event' $ |
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195 | , FUNC_GET_VALUE='cw_slider_pm_get_value' $ |
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196 | , PRO_SET_VALUE='cw_slider_pm_set_value' $ |
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197 | , ROW = row, COLUMN = column, UVALUE = uvalue, UNAME = uname, _extra = ex) |
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198 | ; |
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199 | if keyword_set(vertical) then BEGIN |
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200 | if keyword_set(row) then begin |
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201 | nothing = widget_slider(base, /VERTICAL, UVALUE = 'SliderBar', UNAME = 'SliderBar', _extra = ex) |
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202 | base1 = widget_base(base, space = 1, xpad = 1, ypad = 1 $ |
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203 | , /column, /align_center) |
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204 | nothing = widget_button(base1,value= '+', uvalue='plus', xsize = 15, ysize = 15) |
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205 | nothing = widget_button(base1,value= '-', uvalue='minus', xsize = 15, ysize = 15) |
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206 | ENDIF ELSE BEGIN |
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207 | nothing = widget_button(base,value= '+', uvalue='plus', xsize = 15, ysize = 15) |
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208 | nothing = widget_slider(base, /VERTICAL, UVALUE = 'SliderBar', UNAME = 'SliderBar', _extra = ex) |
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209 | nothing = widget_button(base,value= '-', uvalue='minus', xsize = 15, ysize = 15) |
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210 | ENDELSE |
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211 | ENDIF ELSE BEGIN |
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212 | if keyword_set(row) then begin |
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213 | nothing = widget_button(base,value= '-', uvalue='minus', xsize = 15, ysize = 15) |
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214 | nothing = widget_slider(base, UVALUE = 'SliderBar', UNAME = 'SliderBar', _extra = ex) |
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215 | nothing = widget_button(base,value= '+', uvalue='plus', xsize = 15, ysize = 15) |
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216 | ENDIF ELSE BEGIN |
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217 | nothing = widget_slider(base, UVALUE = 'SliderBar', UNAME = 'SliderBar', _extra = ex) |
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218 | base1 = widget_base(base, space = 1, xpad = 1, ypad = 1 $ |
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219 | , /row, /align_center) |
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220 | nothing = widget_button(base1,value= '-', uvalue='minus', xsize = 15, ysize = 15) |
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221 | nothing = widget_button(base1,value= '+', uvalue='plus', xsize = 15, ysize = 15) |
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222 | ENDELSE |
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223 | ENDELSE |
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224 | ; |
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225 | ; |
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226 | return, base |
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227 | end |
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