[fusion-commits] r1432 - sandbox/legendImage/MapServer/php

[svn_fusion at osgeo.org]

Author: Assefa
Date: 2008-07-03 19:51:00 -0400 (Thu, 03 Jul 2008)
New Revision: 1432

Modified:
   sandbox/legendImage/MapServer/php/LoadMap.php
Log:
Initial pass to generate class icons inside one image

Modified: sandbox/legendImage/MapServer/php/LoadMap.php
===================================================================
--- sandbox/legendImage/MapServer/php/LoadMap.php	2008-07-02 18:47:43 UTC (rev 1431)
+++ sandbox/legendImage/MapServer/php/LoadMap.php	2008-07-03 23:51:00 UTC (rev 1432)
@@ -37,6 +37,7 @@
 /* if scales are not set, these become the default values */
 define('MIN_SCALE', 1);
 define('MAX_SCALE', 1000000000);
+define('ICON_SIZE', 16);
 
 /* could potentially make this optional */
 $moveToSession = true;
@@ -142,6 +143,15 @@
     $mapObj->mapTitle = $title == -1 ? $mapObj->mapName : $title;
     //layers
     $mapObj->layers = array();
+    $nTotalClasses=0;
+    $aIcons = array();
+    $nIconWidth = $oMap->legend->keysizex;
+    $nIconHeight = $oMap->legend->keysizey;
+    if ($nIconWidth <=0)
+      $nIconWidth = ICON_SIZE;
+    if ($nIconHeight <=0)
+      $nIconHeight = ICON_SIZE;
+
     for ($i=0;$i<$oMap->numlayers;$i++)
     {
         $layer=$oMap->getLayer($i);
@@ -241,6 +251,8 @@
              if (!in_array($classMax, $aScaleBreaks)) {
                  array_push($aScaleBreaks, $classMax);
              }
+
+             
          }
          //sort them
          sort($aScaleBreaks);
@@ -256,6 +268,8 @@
 
          //create classes and slot them into the scale breaks
          for ($j=0; $j<$layer->numclasses; $j++) {
+             
+ 
              $oClass = $layer->getClass($j);
              $classObj = NULL;
              $classObj->legendLabel = $oClass->name;
@@ -271,6 +285,20 @@
                      array_push($aScaleRanges[$k]->styles, $classObj);
                  }
              }
+             /*generate icons for each class and set it's position*/
+             $width = $oMap->legend->keysizex;
+             $height = $oMap->legend->keysizey;
+             if ($width <=0)
+                 $width = 16;
+             if ($height <=0)
+                 $height = 16;
+
+             $oImg = $oClass->createLegendIcon($nIconWidth, $nIconHeight);
+             array_push($aIcons, $oImg);
+             
+             $classObj->icon_x=$nTotalClasses*$nIconWidth;
+             $classObj->icon_y=0;
+             $nTotalClasses++;
          }
          $layerObj->scaleRanges = $aScaleRanges;
          array_push($mapObj->layers, $layerObj);
@@ -283,6 +311,23 @@
             array_push($mapObj->groups, getGroupObject($oMap->getLayer($aLayerIndexes[0])));
         }
     }
+
+    /*build and image containing all the icons and return url*/
+    $nTmpWidth = $oMap->width;
+    $nTmpHeight = $oMap->height;
+    
+    $oMap->set("width", $nTotalClasses*$nIconWidth);
+    $oMap->set("height", $nIconHeight);
+    $oImage = $oMap->prepareImage();
+
+    $oMap->set("width", $nTmpWidth);
+    $oMap->set("height", $nTmpHeight);
+    
+    for ($i=0; $i<$nTotalClasses;$i++)
+      $oImage->pasteImage($aIcons[$i], -1, $i*$nIconWidth, 0);
+    $mapObj->icons_url = $oImage->saveWebImage();
+   
+
     echo var2json($mapObj);
 }