<?php
/********************************************************************************
 Copyright (c) 2002-2006 Armin Burger
 
 Permission is hereby granted, free of charge, to any person obtaining 
 a copy of this software and associated documentation files (the "Software"), 
 to deal in the Software without restriction, including without limitation 
 the rights to use, copy, modify, merge, publish, distribute, sublicense, 
 and/or sell copies of the Software, and to permit persons to whom the Software 
 is furnished to do so, subject to the following conditions:
 
 The above copyright notice and this permission notice shall be included 
 in all copies or substantial portions of the Software.
 
 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS 
 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHOR OR 
 COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 
 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
**********************************************************************************/


//===============================================================//
//                 FUNCTIONS FOR PRINTING                        //
//===============================================================//


class PrintMap extends PMap
{
    var $map;   
    var $mapW;  
    var $mapH;  
    var $scale; 
    var $groups;
    var $imgUrlList;
    var $rStr;
    
    
    function PrintMap($map, $mapW, $mapH, $scale, $printType, $imgDPI, $imgFormat=false, $prefmap=true)
    {
        $this->map    = $map;
        $this->mapW   = $mapW;
        $this->mapH   = $mapH;
        $this->scale  = $scale;
        $this->groups = $_SESSION["groups"];
        
        // Check for custom layers
        $this->pmap_addCustomLayers();
        
        // Set active groups/layers
        setGroups($map, $this->groups, $scale, 1);
        
        // Check and if necessary add result layers to map
        $this->pmap_checkResultLayers();
        
        // Check for XY Layers (event layers)
        $existsXYLayer = ($_SESSION["existsXYLayer"] ? 1 : 0);
        
        // Set width and height
        $this->map->set("width", $this->mapW);
        $this->map->set("height", $this->mapH);
    
        // ZOOM TO PRE-DEFINED SCALE OR MAP EXTENT FROM SESSIONID
        $this->zoom2scale();
    
        
        // DEFINE SCALEBAR/REFERENCE-MAP IMG
        $sbarImg = $this->createScaleBar($printType, $imgDPI);
        $this->map->selectOutputFormat("jpeg");
        $refImg = $this->map->drawReferenceMap();
        
        
        // CREATE MAP IMAGE AND PASTE SCALEBAR AND REFERENCE MAP
        switch ($printType) {
            // HTML OUTPUT
            case "html":
                $this->pmap_setImgFormat();
                $mapImg = $this->map->draw();
                
                // CHECK iF THERE'S AN XY-LAYER AND THEN DRAW IT
                if ($existsXYLayer) {
                    $this->pmap_drawXYLayer($mapImg); 
                }
                
                $mapImg->pasteImage($sbarImg, 0, 3, $this->mapH-25);
                if ($prefmap) $mapImg->pasteImage($refImg, -1);
                //$this->imgUrlList[] = $mapImg->saveWebImage();
                $this->imgUrlList[] = mapSaveWebImage($this->map, $mapImg);
                $mapImg->free();
                
                $this->writePrintLegendHTML();
                
                break;
        
            // PDF OUTPUT
            case "pdf":
                // Increase size and resolution for better print quality (factor set in config.ini -> pdfres)
                // Note: resolution has to be increased, too, to keep scale dependency of layers
                $this->pmap_setImgFormat();
                $pdfres = $_SESSION["pdfres"];
                
                // Increase Label size according to magnificion for PDF output
                $this->increaseLabels($pdfres);
                
                $this->map->set("width", $this->mapW * $pdfres);
                $this->map->set("height", $this->mapH * $pdfres);
                $this->map->set("resolution", 96 * $pdfres);
                $mapImgHR = $this->map->draw();
                
                // CHECK iF THERE'S AN XY-LAYER AND THEN DRAW IT
                if ($existsXYLayer) {
                    $this->pmap_drawXYLayer($mapImgHR); 
                }
                
                /*$this->imgUrlList[] = $mapImgHR->saveWebImage();
                $this->imgUrlList[] = $refImg->saveWebImage();
                $this->imgUrlList[] = $sbarImg->saveWebImage();*/
                
                $this->imgUrlList[] = mapSaveWebImage($this->map, $mapImgHR);
                $this->imgUrlList[] = mapSaveWebImage($this->map, $refImg, true);
                //$this->imgUrlList[] = $refImg->saveWebImage();
                $this->imgUrlList[] = mapSaveWebImage($this->map, $sbarImg);
    
                $mapImgHR->free();
                break;
        
            // DOWNLOAD HIGH RESOLUTION IMAGE
            case "dl":
                //$this->map->selectOutputFormat("jpeg");
                if ($imgFormat) {
                    $this->map->selectOutputFormat($imgFormat);  
                } else {
                    $this->pmap_setImgFormat();
                }
                
                // Increase Label size according to DPI
                $factor = round($imgDPI / 96);
                $this->increaseLabels($factor);
                
                $mapImgHR = $this->map->draw();
                
                // CHECK iF THERE'S AN XY-LAYER AND THEN DRAW IT
                if ($existsXYLayer) {
                    $this->drawXYLayer($mapImgHR); 
                }
                
                // GeoTIFF output
                if ($imgFormat) {
                    $tmpFileName = str_replace('\\', '/', $this->map->web->imagepath) . substr(SID, 10) . ".tif";
                    $mapImgHR->saveImage($tmpFileName, $this->map);
                    $this->imgUrlList[] = $tmpFileName;
                
                // JPG or PNG output
                } else {
                    $this->imgUrlList[] = mapSaveWebImage($this->map, $mapImgHR);
                    $legImg = $this->map->drawLegend();
                    $this->imgUrlList[] = mapSaveWebImage($this->map, $legImg);
                    $legImg->free();
                }
                
                $mapImgHR->free();
                break;
        }
    
        $refImg->free();
        $sbarImg->free();
    
    }
    
    function returnImgUrlList()
    {
        return $this->imgUrlList;
    }
    
    
    
    function returnLegStr()
    {
        return $this->rStr;
    }
    
    
    
    /**
     * Increase label size for PDF print and download
     */
    function increaseLabels($factor)
    {
        $layers = $this->map->getAllLayerNames();
        
        foreach ($layers as $ln) {
            $layer = $this->map->getLayerByName($ln);
            if ($layer->labelitem) {
                $numclasses = $layer->numclasses;
                $classes = array();
                for ($cl=0; $cl < $numclasses; $cl++) {
                    $class = $layer->getClass($cl);
                    if ($label = $class->label) {
                        if ($label->type == 0) {
                            $labelSize0 = $label->size;
                            $label->set("size", $labelSize0 * $factor);
                        }
                    }
                }
            }
        }
    }
    
    
    /**
     * ZOOM MAP TO SPECIFIED SCALE
     */
    function zoom2scale()
    {
        $GEOEXT = $_SESSION["GEOEXT"];
        $geoext0 = ms_newrectObj();
        $geoext0->setextent($GEOEXT["minx"],$GEOEXT["miny"],$GEOEXT["maxx"],$GEOEXT["maxy"]);
    
        // PREPARE MAP IMG 
        $x_pix = $this->mapW/2;
        $y_pix = $this->mapH/2;
    
        $xy_pix = ms_newPointObj();
        $xy_pix->setXY($x_pix, $y_pix);
    
        $this->map->zoomscale($this->scale, $xy_pix, $this->mapW, $this->mapH, $geoext0);
        $xy_pix->free();
    }



    /*
     * Draw Scale Bar
     ***************************************/
    function createScaleBar($printType, $imgDPI)
    {
        $this->pmap_setImgFormat(); 
        $scalebar = $this->map->scalebar;
        $sbarlabel = $scalebar->label;
        $scalebar->set("transparent", MS_OFF);
    
        if ($printType == "dl" && $imgDPI >= 200) {
            $sbarlabel->set("size", MS_GIANT);
            $scalebar->set("width", $this->map->width * 0.3);
            $scalebar->set("height", $this->map->height * 0.011);
        }
        
        $sbarlabel->color->setRGB(0, 0, 0);
        $sbarlabel->outlinecolor->setRGB(255, 255, 255);
    
        $sbarImg = $this->map->drawScaleBar();
    
        return $sbarImg;
    }
    
    
    
    
    
    //===================================================================================//
    //                            LEGEND                                                 //
    //===================================================================================//
    
    /*
     * CREATES HTML LEGEND FOR PRINT OUTPUT
     *********************************************************************************/
    function writePrintLegendHTML()
    {
        $grouplist = $_SESSION["grouplist"];
        $defGroups = $_SESSION["defGroups"];
        $icoW      = $_SESSION["icoW"];  // Width in pixels
        $icoH      = $_SESSION["icoH"];  // Height in pixels
        $imgFormat = $_SESSION["imgFormat"];
    
        // GET LAYERS FOR DRAWING AND IDENTIFY
        if (isset ($_SESSION["groups"]) && count($_SESSION["groups"]) > 0){
            $groups = $_SESSION["groups"];
        }else{
            $groups = $defGroups;
        }
    
    
        $legPath = "images/legend/";
    
        foreach ($grouplist as $grp){
            if (in_array($grp->getGroupName(), $groups, TRUE)) {
                $glayerList = $grp->getLayers();
    
                $numcls = 0;
                            
                foreach ($glayerList as $glayer) {
                    $legendLayer = $this->map->getLayer($glayer->getLayerIdx());
                    $numClasses = count($glayer->getClasses());
                    $skipLegend = $glayer->getSkipLegend();
                    
                    if (($legendLayer->type < 3 || $legIconPath || $numClasses > 1) && checkScale($this->map, $legendLayer, $this->scale) == 1 && $skipLegend < 2) {
                    //if ($legendLayer->type < 3 && checkScale($map, $legendLayer, $scale) == 1) {
                        $numcls += $legendLayer->numclasses;
                        
                        $legLayerName = $glayer->getLayerName();
                        $layClasses = $glayer->getClasses();
                        $clsno = 0;
                        foreach ($layClasses as $cl) {
                            $icoUrl = $legPath.$legLayerName.'_i'.$clsno.'.'.$imgFormat;
                            $grpClassList[] = array($cl, $icoUrl);
                            $clsno++;
                        }
                    }
                }
                
    
                // Only 1 class for Layer -> 1 Symbol for Group
                if ($numcls == 1) {
                    $legLayer = $leglayers[0];
                    $icoUrl = $grpClassList[0][1];
    
                    $this->rStr  .=  "  <tr>";
                    $this->rStr  .=  "<th><img src=\"$icoUrl\" width=\"$icoW\" height=\"$icoH\" alt=\"ico\" /></th>";
                    $this->rStr  .=  "<th style=\"width:100%\" colspan=\"3\">" . $grp->getDescription() . "</th>";
                    $this->rStr  .=  "</tr> \n";
    
                // More than 2 classes for Group  -> symbol for *every* class
                } elseif ($numcls > 1) {
                    $this->rStr  .=  ("\n  <tr><th colspan=\"4\">" . $grp->getDescription() . "</th></tr> \n");
    
                    $clscnt = 0;
                    foreach ($grpClassList as $cls) {
                        $clsStr = $cls[0];
                        $icoUrl = $cls[1];
    
                        $legLayerName = $legLayer->name;
                        $classes = $glayer->getClasses();                   
                        
                        $this->rStr .= (($clscnt % 2) ? "" : "  <tr>" ); 
    
                        $this->rStr .= ("<td style=\"width:$icoW\"><img src=\"$icoUrl\" width=\"$icoW\" height=\"$icoH\" alt=\"ico\" /> </td>");  
                        $this->rStr .= ("<td>$clsStr</td> ");
    
                        if ($clscnt % 2) {   // after printing RIGHT column
                            $this->rStr .= ("</tr> \n");
                        } else {           // after printing LEFT column
                            if ($clscnt == ($numcls - 1)) {    // Begin new group when number of printed classes equals total class number
                                $this->rStr .= ("<td></td></tr> \n");
                            } else {
                                     // Continue in same group, add only new class item
                            }
                        }
                        $clscnt++;
                    }
                }
                unset($grpClassList);
            }
        }
    }


} // END CLASS PRINTMAP




?>