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<?php // content="text/plain; charset=utf-8" |
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//======================================================================= |
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// File: MKGRAD.PHP |
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// Description: Simple tool to create a gradient background |
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// Ver: $Id$ |
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//======================================================================= |
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// Basic library classes |
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require_once('jpgraph/jpgraph.php'); |
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require_once('jpgraph/jpgraph_bar.php'); |
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require_once('jpgraph/jpgraph_canvas.php'); |
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// Must have a global comparison method for usort() |
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function _cmp($a, $b) |
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{ |
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return strcmp($a, $b); |
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} |
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// Generate the input form |
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class Form |
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{ |
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public $iColors; |
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public $iGradstyles; |
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public function Form() |
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{ |
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$rgb = new RGB(); |
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$this->iColors = array_keys($rgb->rgb_table); |
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usort($this->iColors, '_cmp'); |
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$this->iGradstyles = array( |
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"Vertical",2, |
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"Horizontal",1, |
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"Vertical from middle",3, |
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"Horizontal from middle",4, |
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"Horizontal wider middle",6, |
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"Vertical wider middle",7, |
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"Rectangle",5 ); |
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} |
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public function Run() |
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{ |
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echo '<h3>Generate gradient background</h3>'; |
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echo '<form METHOD=POST action=""><table style="border:blue solid 1;">'; |
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echo '<tr><td>Width:<br>'.$this->GenHTMLInput('w', 8, 4, 300).'</td>'; |
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echo "\n"; |
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echo '<td>Height:<br>'.$this->GenHTMLInput('h', 8, 4, 300).'</td></tr>'; |
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echo "\n"; |
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echo '<tr><td>From Color:<br>'; |
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echo $this->GenHTMLSelect('fc', $this->iColors); |
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echo '</td><td>To Color:<br>'; |
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echo $this->GenHTMLSelect('tc', $this->iColors); |
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echo '</td></tr>'; |
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echo '<tr><td colspan=2>Gradient style:<br>'; |
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echo $this->GenHTMLSelectCode('s', $this->iGradstyles); |
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echo '</td></tr>'; |
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echo '<tr><td colspan=2>Filename: (empty to stream)<br>'; |
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echo $this->GenHTMLInput('fn', 55, 100); |
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echo '</td></tr>'; |
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echo '<tr><td colspan=2 align=right>'.$this->GenHTMLSubmit('submit').'</td></tr>'; |
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echo '</table>'; |
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echo '</form>'; |
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} |
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public function GenHTMLSubmit($name) |
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{ |
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return '<INPUT TYPE=submit name="ok" value=" Ok " >'; |
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} |
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public function GenHTMLInput($name, $len, $maxlen=100, $val='') |
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{ |
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return '<INPUT TYPE=TEXT NAME='.$name.' VALUE="'.$val.'" SIZE='.$len.' MAXLENGTH='.$maxlen.'>'; |
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} |
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public function GenHTMLSelect($name, $option, $selected="", $size=0) |
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{ |
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$txt="<select name=$name"; |
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if ($size > 0) { |
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$txt .= " size=$size >"; |
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} else { |
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$txt .= ">"; |
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} |
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for ($i=0; $i < count($option); $i++) { |
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if ($selected == $option[$i]) { |
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$txt=$txt."<option selected value=\"$option[$i]\">$option[$i]</option>\n"; |
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} else { |
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$txt=$txt."<option value=\"".$option[$i]."\">$option[$i]</option>\n"; |
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} |
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} |
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return $txt."</select>\n"; |
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} |
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public function GenHTMLSelectCode($name, $option, $selected="", $size=0) |
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{ |
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$txt="<select name=$name"; |
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if ($size > 0) { |
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$txt .= " size=$size >"; |
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} else { |
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$txt .= ">"; |
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} |
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for ($i=0; $i < count($option); $i += 2) { |
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if ($selected == $option[($i + 1)]) { |
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$txt=$txt."<option selected value=".$option[($i + 1)].">$option[$i]</option>\n"; |
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} else { |
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$txt=$txt."<option value=\"".$option[($i + 1)]."\">$option[$i]</option>\n"; |
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} |
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} |
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return $txt."</select>\n"; |
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} |
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} |
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// Basic application driver |
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class Driver |
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{ |
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public $iGraph; |
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public $iGrad; |
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public $iWidth; |
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public $iHeight; |
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public $iFromColor; |
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public $iToColor; |
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public $iStyle; |
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public $iForm; |
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public function Driver() |
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{ |
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$this->iForm = new Form(); |
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} |
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public function GenGradImage() |
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{ |
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$aWidth = (int)@$_POST['w']; |
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$aHeight = (int)@$_POST['h']; |
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$aFrom = @$_POST['fc']; |
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$aTo = @$_POST['tc']; |
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$aStyle = @$_POST['s']; |
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$aFileName = @$_POST['fn']; |
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$this->iWidth = $aWidth; |
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$this->iHeight = $aHeight; |
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$this->iFromColor = $aFrom; |
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$this->iToColor = $aTo; |
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$this->iStyle = $aStyle; |
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$this->graph = new CanvasGraph($aWidth, $aHeight); |
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$this->grad = new Gradient($this->graph->img); |
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$this->grad->FilledRectangle(0,0, |
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$this->iWidth,$this->iHeight, |
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$this->iFromColor, |
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$this->iToColor, |
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$this->iStyle); |
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if ($aFileName != "") { |
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$this->graph->Stroke($aFileName); |
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echo "Image file '$aFileName' created."; |
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} else { |
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$this->graph->Stroke(); |
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} |
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} |
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public function Run() |
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{ |
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global $HTTP_POST_VARS; |
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// Two modes: |
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// 1) If the script is called with no posted arguments |
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// we show the input form. |
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// 2) If we have posted arguments we naivly assume that |
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// we are called to do the image. |
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if (@$_POST['ok'] === ' Ok ') { |
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$this->GenGradImage(); |
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} else { |
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$this->iForm->Run(); |
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} |
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} |
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} |
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$driver = new Driver(); |
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$driver->Run(); |
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HuasoFoundries /
jpgraph
