1 | # ------------------------------------------------------------------------------ |
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2 | # pagesmgr.tcl |
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3 | # This file is part of Unifix BWidget Toolkit |
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4 | # $Id: pagesmgr.tcl,v 1.4 1999/07/09 11:49:19 eric Exp $ |
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5 | # ------------------------------------------------------------------------------ |
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6 | # Index of commands: |
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7 | # - PagesManager::create |
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8 | # - PagesManager::configure |
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9 | # - PagesManager::cget |
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10 | # - PagesManager::compute_size |
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11 | # - PagesManager::add |
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12 | # - PagesManager::delete |
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13 | # - PagesManager::raise |
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14 | # - PagesManager::page |
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15 | # - PagesManager::pages |
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16 | # - PagesManager::getframe |
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17 | # - PagesManager::_test_page |
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18 | # - PagesManager::_select |
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19 | # - PagesManager::_redraw |
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20 | # - PagesManager::_draw_area |
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21 | # - PagesManager::_realize |
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22 | # ------------------------------------------------------------------------------ |
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23 | |
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24 | namespace eval PagesManager { |
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25 | Widget::declare PagesManager { |
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26 | {-background TkResource "" 0 frame} |
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27 | {-width Int 0 0 {=0 ""}} |
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28 | {-height Int 0 0 {=0 ""}} |
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29 | } |
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30 | |
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31 | Widget::addmap PagesManager "" :cmd {-width {} -height {}} |
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32 | |
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33 | proc ::PagesManager { path args } { return [eval PagesManager::create $path $args] } |
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34 | proc use {} {} |
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35 | } |
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36 | |
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37 | |
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38 | # ------------------------------------------------------------------------------ |
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39 | # Command PagesManager::create |
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40 | # ------------------------------------------------------------------------------ |
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41 | proc PagesManager::create { path args } { |
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42 | variable $path |
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43 | upvar 0 $path data |
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44 | |
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45 | Widget::init PagesManager $path $args |
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46 | |
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47 | set data(select) "" |
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48 | set data(pages) {} |
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49 | set data(cpt) 0 |
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50 | set data(realized) 0 |
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51 | |
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52 | # --- creation du canvas ----------------------------------------------------------------- |
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53 | set w [Widget::cget $path -width] |
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54 | set h [Widget::cget $path -height] |
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55 | canvas $path -relief flat -bd 0 -highlightthickness 0 -width $w -height $h |
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56 | |
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57 | bind $path <Configure> "PagesManager::_realize $path" |
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58 | bind $path <Destroy> "PagesManager::_destroy $path" |
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59 | |
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60 | rename $path ::$path:cmd |
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61 | proc ::$path { cmd args } "return \[eval PagesManager::\$cmd $path \$args\]" |
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62 | |
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63 | return $path |
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64 | } |
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65 | |
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66 | |
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67 | # ------------------------------------------------------------------------------ |
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68 | # Command PagesManager::configure |
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69 | # ------------------------------------------------------------------------------ |
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70 | proc PagesManager::configure { path args } { |
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71 | return [Widget::configure $path $args] |
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72 | } |
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73 | |
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74 | |
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75 | # ------------------------------------------------------------------------------ |
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76 | # Command PagesManager::cget |
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77 | # ------------------------------------------------------------------------------ |
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78 | proc PagesManager::cget { path option } { |
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79 | return [Widget::cget $path $option] |
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80 | } |
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81 | |
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82 | |
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83 | # ------------------------------------------------------------------------------ |
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84 | # Command PagesManager::compute_size |
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85 | # ------------------------------------------------------------------------------ |
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86 | proc PagesManager::compute_size { path } { |
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87 | variable $path |
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88 | upvar 0 $path data |
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89 | |
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90 | set wmax 0 |
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91 | set hmax 0 |
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92 | update idletasks |
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93 | foreach page $data(pages) { |
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94 | set w [winfo reqwidth $path.f$page] |
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95 | set h [winfo reqheight $path.f$page] |
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96 | set wmax [expr {$w>$wmax ? $w : $wmax}] |
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97 | set hmax [expr {$h>$hmax ? $h : $hmax}] |
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98 | } |
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99 | configure $path -width $wmax -height $hmax |
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100 | } |
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101 | |
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102 | |
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103 | # ------------------------------------------------------------------------------ |
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104 | # Command PagesManager::add |
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105 | # ------------------------------------------------------------------------------ |
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106 | proc PagesManager::add { path page } { |
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107 | variable $path |
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108 | upvar 0 $path data |
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109 | |
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110 | if { [lsearch $data(pages) $page] != -1 } { |
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111 | return -code error "page \"$page\" already exists" |
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112 | } |
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113 | |
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114 | lappend data(pages) $page |
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115 | |
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116 | frame $path.f$page -relief flat -background [Widget::cget $path -background] -borderwidth 0 |
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117 | |
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118 | return $path.f$page |
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119 | } |
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120 | |
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121 | |
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122 | # ------------------------------------------------------------------------------ |
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123 | # Command PagesManager::delete |
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124 | # ------------------------------------------------------------------------------ |
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125 | proc PagesManager::delete { path page } { |
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126 | variable $path |
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127 | upvar 0 $path data |
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128 | |
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129 | set pos [_test_page $path $page] |
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130 | set data(pages) [lreplace $data(pages) $pos $pos] |
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131 | if { $data(select) == $page } { |
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132 | set data(select) "" |
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133 | } |
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134 | destroy $path.f$page |
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135 | _redraw $path |
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136 | } |
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137 | |
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138 | |
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139 | # ------------------------------------------------------------------------------ |
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140 | # Command PagesManager::raise |
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141 | # ------------------------------------------------------------------------------ |
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142 | proc PagesManager::raise { path {page ""} } { |
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143 | variable $path |
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144 | upvar 0 $path data |
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145 | |
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146 | if { $page != "" } { |
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147 | _test_page $path $page |
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148 | _select $path $page |
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149 | } |
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150 | return $data(select) |
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151 | } |
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152 | |
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153 | |
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154 | # ------------------------------------------------------------------------------ |
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155 | # Command PagesManager::page - deprecated, use pages |
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156 | # ------------------------------------------------------------------------------ |
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157 | proc PagesManager::page { path first {last ""} } { |
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158 | variable $path |
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159 | upvar 0 $path data |
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160 | |
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161 | if { $last == "" } { |
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162 | return [lindex $data(pages) $first] |
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163 | } else { |
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164 | return [lrange $data(pages) $first $last] |
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165 | } |
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166 | } |
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167 | |
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168 | |
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169 | # ------------------------------------------------------------------------------ |
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170 | # Command PagesManager::pages |
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171 | # ------------------------------------------------------------------------------ |
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172 | proc PagesManager::pages { path {first ""} {last ""} } { |
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173 | variable $path |
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174 | upvar 0 $path data |
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175 | |
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176 | if { ![string length $first] } { |
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177 | return $data(pages) |
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178 | } |
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179 | |
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180 | if { ![string length $last] } { |
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181 | return [lindex $data(pages) $first] |
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182 | } else { |
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183 | return [lrange $data(pages) $first $last] |
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184 | } |
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185 | } |
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186 | |
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187 | |
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188 | # ------------------------------------------------------------------------------ |
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189 | # Command PagesManager::_destroy |
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190 | # ------------------------------------------------------------------------------ |
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191 | proc PagesManager::_destroy { path } { |
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192 | variable $path |
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193 | upvar 0 $path data |
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194 | |
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195 | Widget::destroy $path |
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196 | unset data |
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197 | rename $path {} |
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198 | } |
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199 | |
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200 | |
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201 | # ------------------------------------------------------------------------------ |
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202 | # Command PagesManager::getframe |
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203 | # ------------------------------------------------------------------------------ |
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204 | proc PagesManager::getframe { path page } { |
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205 | return $path.f$page |
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206 | } |
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207 | |
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208 | |
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209 | # ------------------------------------------------------------------------------ |
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210 | # Command PagesManager::_test_page |
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211 | # ------------------------------------------------------------------------------ |
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212 | proc PagesManager::_test_page { path page } { |
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213 | variable $path |
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214 | upvar 0 $path data |
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215 | |
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216 | if { [set pos [lsearch $data(pages) $page]] == -1 } { |
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217 | return -code error "page \"$page\" does not exists" |
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218 | } |
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219 | return $pos |
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220 | } |
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221 | |
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222 | |
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223 | # ------------------------------------------------------------------------------ |
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224 | # Command PagesManager::_select |
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225 | # ------------------------------------------------------------------------------ |
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226 | proc PagesManager::_select { path page } { |
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227 | variable $path |
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228 | upvar 0 $path data |
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229 | |
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230 | set oldsel $data(select) |
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231 | if { $page != $oldsel } { |
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232 | set data(select) $page |
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233 | _draw_area $path |
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234 | } |
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235 | } |
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236 | |
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237 | |
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238 | # ------------------------------------------------------------------------------ |
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239 | # Command PagesManager::_redraw |
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240 | # ------------------------------------------------------------------------------ |
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241 | proc PagesManager::_redraw { path } { |
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242 | variable $path |
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243 | upvar 0 $path data |
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244 | |
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245 | if { !$data(realized) } { |
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246 | return |
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247 | } |
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248 | _draw_area $path |
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249 | } |
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250 | |
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251 | |
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252 | # ------------------------------------------------------------------------------ |
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253 | # Command PagesManager::_draw_area |
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254 | # ------------------------------------------------------------------------------ |
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255 | proc PagesManager::_draw_area { path } { |
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256 | variable $path |
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257 | upvar 0 $path data |
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258 | |
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259 | set w [winfo width $path] |
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260 | set h [winfo height $path] |
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261 | set sel $data(select) |
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262 | if { $sel != "" } { |
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263 | if { [llength [$path:cmd find withtag "window"]] } { |
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264 | $path:cmd coords "window" 0 0 |
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265 | $path:cmd itemconfigure "window" \ |
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266 | -width $w \ |
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267 | -height $h \ |
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268 | -window $path.f$sel |
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269 | } else { |
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270 | $path:cmd create window 0 0 \ |
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271 | -width $w \ |
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272 | -height $h \ |
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273 | -anchor nw \ |
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274 | -tags "window" \ |
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275 | -window $path.f$sel |
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276 | } |
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277 | } else { |
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278 | $path:cmd delete "window" |
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279 | } |
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280 | } |
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281 | |
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282 | |
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283 | # ------------------------------------------------------------------------------ |
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284 | # Command PagesManager::_realize |
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285 | # ------------------------------------------------------------------------------ |
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286 | proc PagesManager::_realize { path } { |
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287 | variable $path |
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288 | upvar 0 $path data |
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289 | |
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290 | if { [set width [Widget::cget $path -width]] == 0 || |
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291 | [set height [Widget::cget $path -height]] == 0 } { |
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292 | compute_size $path |
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293 | } |
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294 | |
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295 | set data(realized) 1 |
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296 | _draw_area $path |
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297 | bind $path <Configure> "PagesManager::_draw_area $path" |
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298 | } |
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