[42] | 1 | <?php // content="text/plain; charset=utf-8" |
---|
| 2 | //======================================================================= |
---|
| 3 | // File: MKGRAD.PHP |
---|
| 4 | // Description: Simple tool to create a gradient background |
---|
| 5 | // Ver: $Id$ |
---|
| 6 | //======================================================================= |
---|
| 7 | |
---|
| 8 | // Basic library classes |
---|
| 9 | require_once ('jpgraph/jpgraph.php'); |
---|
| 10 | require_once ('jpgraph/jpgraph_bar.php'); |
---|
| 11 | require_once ('jpgraph/jpgraph_canvas.php'); |
---|
| 12 | |
---|
| 13 | |
---|
| 14 | // Must have a global comparison method for usort() |
---|
| 15 | function _cmp($a,$b) { |
---|
| 16 | return strcmp($a,$b); |
---|
| 17 | } |
---|
| 18 | |
---|
| 19 | // Generate the input form |
---|
| 20 | class Form { |
---|
| 21 | var $iColors; |
---|
| 22 | var $iGradstyles; |
---|
| 23 | function Form() { |
---|
| 24 | |
---|
| 25 | $rgb = new RGB(); |
---|
| 26 | $this->iColors = array_keys($rgb->rgb_table); |
---|
| 27 | usort($this->iColors,'_cmp'); |
---|
| 28 | |
---|
| 29 | $this->iGradstyles = array( |
---|
| 30 | "Vertical",2, |
---|
| 31 | "Horizontal",1, |
---|
| 32 | "Vertical from middle",3, |
---|
| 33 | "Horizontal from middle",4, |
---|
| 34 | "Horizontal wider middle",6, |
---|
| 35 | "Vertical wider middle",7, |
---|
| 36 | "Rectangle",5 ); |
---|
| 37 | } |
---|
| 38 | |
---|
| 39 | function Run() { |
---|
| 40 | |
---|
| 41 | echo '<h3>Generate gradient background</h3>'; |
---|
| 42 | echo '<form METHOD=POST action=""><table style="border:blue solid 1;">'; |
---|
| 43 | echo '<tr><td>Width:<br>'.$this->GenHTMLInput('w',8,4,300).'</td>'; |
---|
| 44 | echo "\n"; |
---|
| 45 | echo '<td>Height:<br>'.$this->GenHTMLInput('h',8,4,300).'</td></tr>'; |
---|
| 46 | echo "\n"; |
---|
| 47 | echo '<tr><td>From Color:<br>'; |
---|
| 48 | echo $this->GenHTMLSelect('fc',$this->iColors); |
---|
| 49 | echo '</td><td>To Color:<br>'; |
---|
| 50 | echo $this->GenHTMLSelect('tc',$this->iColors); |
---|
| 51 | echo '</td></tr>'; |
---|
| 52 | echo '<tr><td colspan=2>Gradient style:<br>'; |
---|
| 53 | echo $this->GenHTMLSelectCode('s',$this->iGradstyles); |
---|
| 54 | echo '</td></tr>'; |
---|
| 55 | echo '<tr><td colspan=2>Filename: (empty to stream)<br>'; |
---|
| 56 | echo $this->GenHTMLInput('fn',55,100); |
---|
| 57 | echo '</td></tr>'; |
---|
| 58 | echo '<tr><td colspan=2 align=right>'.$this->GenHTMLSubmit('submit').'</td></tr>'; |
---|
| 59 | echo '</table>'; |
---|
| 60 | echo '</form>'; |
---|
| 61 | |
---|
| 62 | } |
---|
| 63 | |
---|
| 64 | function GenHTMLSubmit($name) { |
---|
| 65 | return '<INPUT TYPE=submit name="ok" value=" Ok " >'; |
---|
| 66 | } |
---|
| 67 | |
---|
| 68 | |
---|
| 69 | function GenHTMLInput($name,$len,$maxlen=100,$val='') { |
---|
| 70 | return '<INPUT TYPE=TEXT NAME='.$name.' VALUE="'.$val.'" SIZE='.$len.' MAXLENGTH='.$maxlen.'>'; |
---|
| 71 | } |
---|
| 72 | |
---|
| 73 | function GenHTMLSelect($name,$option,$selected="",$size=0) { |
---|
| 74 | $txt="<select name=$name"; |
---|
| 75 | if( $size > 0 ) |
---|
| 76 | $txt .= " size=$size >"; |
---|
| 77 | else |
---|
| 78 | $txt .= ">"; |
---|
| 79 | for($i=0; $i<count($option); $i++) { |
---|
| 80 | if( $selected==$option[$i] ) |
---|
| 81 | $txt=$txt."<option selected value=\"$option[$i]\">$option[$i]</option>\n"; |
---|
| 82 | else |
---|
| 83 | $txt=$txt."<option value=\"".$option[$i]."\">$option[$i]</option>\n"; |
---|
| 84 | } |
---|
| 85 | return $txt."</select>\n"; |
---|
| 86 | } |
---|
| 87 | |
---|
| 88 | function GenHTMLSelectCode($name,$option,$selected="",$size=0) { |
---|
| 89 | $txt="<select name=$name"; |
---|
| 90 | if( $size > 0 ) |
---|
| 91 | $txt .= " size=$size >"; |
---|
| 92 | else |
---|
| 93 | $txt .= ">"; |
---|
| 94 | for($i=0; $i<count($option); $i += 2) { |
---|
| 95 | if( $selected==$option[($i+1)] ) |
---|
| 96 | $txt=$txt."<option selected value=".$option[($i+1)].">$option[$i]</option>\n"; |
---|
| 97 | else |
---|
| 98 | $txt=$txt."<option value=\"".$option[($i+1)]."\">$option[$i]</option>\n"; |
---|
| 99 | } |
---|
| 100 | return $txt."</select>\n"; |
---|
| 101 | } |
---|
| 102 | |
---|
| 103 | } |
---|
| 104 | |
---|
| 105 | // Basic application driver |
---|
| 106 | |
---|
| 107 | class Driver { |
---|
| 108 | var $iGraph, $iGrad; |
---|
| 109 | var $iWidth,$iHeight; |
---|
| 110 | var $iFromColor, $iToColor; |
---|
| 111 | var $iStyle; |
---|
| 112 | var $iForm; |
---|
| 113 | |
---|
| 114 | function Driver() { |
---|
| 115 | $this->iForm = new Form(); |
---|
| 116 | } |
---|
| 117 | |
---|
| 118 | function GenGradImage() { |
---|
| 119 | |
---|
| 120 | $aWidth = (int)@$_POST['w']; |
---|
| 121 | $aHeight = (int)@$_POST['h']; |
---|
| 122 | $aFrom = @$_POST['fc']; |
---|
| 123 | $aTo = @$_POST['tc']; |
---|
| 124 | $aStyle = @$_POST['s']; |
---|
| 125 | $aFileName = @$_POST['fn']; |
---|
| 126 | |
---|
| 127 | $this->iWidth = $aWidth; |
---|
| 128 | $this->iHeight = $aHeight; |
---|
| 129 | $this->iFromColor = $aFrom; |
---|
| 130 | $this->iToColor = $aTo; |
---|
| 131 | $this->iStyle = $aStyle; |
---|
| 132 | |
---|
| 133 | $this->graph = new CanvasGraph($aWidth,$aHeight); |
---|
| 134 | $this->grad = new Gradient($this->graph->img); |
---|
| 135 | $this->grad->FilledRectangle(0,0, |
---|
| 136 | $this->iWidth,$this->iHeight, |
---|
| 137 | $this->iFromColor, |
---|
| 138 | $this->iToColor, |
---|
| 139 | $this->iStyle); |
---|
| 140 | |
---|
| 141 | if( $aFileName != "" ) { |
---|
| 142 | $this->graph->Stroke($aFileName); |
---|
| 143 | echo "Image file '$aFileName' created."; |
---|
| 144 | } |
---|
| 145 | else |
---|
| 146 | $this->graph->Stroke(); |
---|
| 147 | } |
---|
| 148 | |
---|
| 149 | |
---|
| 150 | function Run() { |
---|
| 151 | |
---|
| 152 | global $HTTP_POST_VARS; |
---|
| 153 | |
---|
| 154 | // Two modes: |
---|
| 155 | // 1) If the script is called with no posted arguments |
---|
| 156 | // we show the input form. |
---|
| 157 | // 2) If we have posted arguments we naivly assume that |
---|
| 158 | // we are called to do the image. |
---|
| 159 | |
---|
| 160 | if( @$_POST['ok']===' Ok ' ) { |
---|
| 161 | $this->GenGradImage(); |
---|
| 162 | } |
---|
| 163 | else |
---|
| 164 | $this->iForm->Run(); |
---|
| 165 | } |
---|
| 166 | } |
---|
| 167 | |
---|
| 168 | $driver = new Driver(); |
---|
| 169 | $driver->Run(); |
---|
| 170 | |
---|
| 171 | ?> |
---|