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<?php
// PHP Weathermap 0.97a
// Copyright Howard Jones, 2005-2010 howie@thingy.com
// http://www.network-weathermap.com/
// Released under the GNU Public License

require_once "HTML_ImageMap.class.php";

class WeatherMapNode extends WeatherMapItem
{
        var $owner;
        var $id;
        var $x, $y;
        var $original_x, $original_y,$relative_resolved;
        var $width, $height;
        var $label, $proclabel, $labelfont;
        var $labelangle;
        var $name;
        var $infourl = array();
        var $notes;
        var $colours = array();
        var $overliburl;
        var $overlibwidth, $overlibheight;
        var $overlibcaption = array();
        var $maphtml;
        var $selected = 0;
        var $iconfile, $iconscalew, $iconscaleh;
        var $targets = array();
        var $bandwidth_in, $bandwidth_out;
        var $inpercent, $outpercent;
        var $max_bandwidth_in, $max_bandwidth_out;
        var $max_bandwidth_in_cfg, $max_bandwidth_out_cfg;
        var $labeloffset, $labeloffsetx, $labeloffsety;

        var $inherit_fieldlist;

        var $labelbgcolour;
        var $labeloutlinecolour;
        var $labelfontcolour;
        var $labelfontshadowcolour;
        var $cachefile;
        var $usescale;
        var $useiconscale;
        var $scaletype, $iconscaletype;
        var $inscalekey,$outscalekey;
        var $inscaletag, $outscaletag;
        # var $incolour,$outcolour;
        var $scalevar, $iconscalevar;
        var $notestext = array();
        var $image;
        var $centre_x, $centre_y;
        var $relative_to;
        var $zorder;
        var $template;
        var $polar;
        var $boundingboxes=array();

        function WeatherMapNode()
        {
                $this->inherit_fieldlist=array
                        (
                                'boundingboxes'=>array(),
                                'my_default' => NULL,
                                'label' => '',
                                'proclabel' => '',
                                'usescale' => 'DEFAULT',
                                'scaletype' => 'percent',
                                'iconscaletype' => 'percent',
                                'useiconscale' => 'none',
                                'scalevar' => 'in',
                                'template' => ':: DEFAULT ::',
                                'iconscalevar' => 'in',
                                'labelfont' => 3,
                                'relative_to' => '',
                                'relative_resolved' => FALSE,
                                'x' => NULL,
                                'y' => NULL,
                                'inscalekey'=>'', 'outscalekey'=>'',
                                #'incolour'=>-1,'outcolour'=>-1,
                                'original_x' => 0,
                                'original_y' => 0,
                                'inpercent'=>0,
                                'outpercent'=>0,
                                'labelangle'=>0,
                                'iconfile' => '',
                                'iconscalew' => 0,
                                'iconscaleh' => 0,
                                'targets' => array(),
                                'infourl' => array(IN=>'',OUT=>''),
                                'notestext' => array(IN=>'',OUT=>''),
                                'notes' => array(),
                                'hints' => array(),
                                'overliburl' => array(IN=>array(),OUT=>array()),
                                'overlibwidth' => 0,
                                'overlibheight' => 0,
                                'overlibcaption' => array(IN=>'',OUT=>''),
                                'labeloutlinecolour' => array(0, 0, 0),
                                'labelbgcolour' => array(255, 255, 255),
                                'labelfontcolour' => array(0, 0, 0),
                                'labelfontshadowcolour' => array(-1, -1, -1),
                                'aiconoutlinecolour' => array(0,0,0),
                                'aiconfillcolour' => array(-2,-2,-2), // copy from the node label
                                'labeloffset' => '',
                                'labeloffsetx' => 0,
                                'labeloffsety' => 0,
                                'zorder' => 600,
                                'max_bandwidth_in' => 100,
                                'max_bandwidth_out' => 100,
                                'max_bandwidth_in_cfg' => '100',
                                'max_bandwidth_out_cfg' => '100'
                        );

                $this->width = 0;
                $this->height = 0;
                $this->centre_x = 0;
                $this->centre_y = 0;
                $this->polar = FALSE;
                $this->image = NULL;
        }

        function my_type() {  return "NODE"; }

        // make a mini-image, containing this node and nothing else
        // figure out where the real NODE centre is, relative to the top-left corner.
        function pre_render($im, &$map)
        {
                // don't bother drawing if there's no position - it's a template
                if( is_null($this->x) ) return;
                if( is_null($this->y) ) return;
                
                // apparently, some versions of the gd extension will crash
                // if we continue...
                if($this->label == '' && $this->iconfile=='') return;

                // start these off with sensible values, so that bbox
                // calculations are easier.
                $icon_x1 = $this->x; $icon_x2 = $this->x;
                $icon_y1 = $this->y; $icon_y2 = $this->y;
                $label_x1 = $this->x; $label_x2 = $this->x;
                $label_y1 = $this->y; $label_y2 = $this->y;
                $boxwidth = 0; $boxheight = 0;
                $icon_w = 0;
                $icon_h = 0;

                $col = new Colour(-1,-1,-1);
                # print $col->as_string();

                // if a target is specified, and you haven't forced no background, then the background will
                // come from the SCALE in USESCALE
                if( !empty($this->targets) && $this->usescale != 'none' )
                {
                        $pc = 0;

                        if($this->scalevar == 'in')
                        {
                                $pc = $this->inpercent;
                                $col = $this->colours[IN];

                        }
                        
                        if($this->scalevar == 'out')
                        {
                                $pc = $this->outpercent;
                                $col = $this->colours[OUT];

                        }
                }
                elseif($this->labelbgcolour != array(-1,-1,-1))
                {
                        // $col=myimagecolorallocate($node_im, $this->labelbgcolour[0], $this->labelbgcolour[1], $this->labelbgcolour[2]);
                        $col = new Colour($this->labelbgcolour);
                }

                $colicon = null;
                if ( !empty($this->targets) && $this->useiconscale != 'none' )
                {
                        debug("Colorising the icon\n");
                        $pc = 0;
                        $val = 0;

                        if($this->iconscalevar == 'in')
                        {
                                $pc = $this->inpercent;
                                $col = $this->colours[IN];
                                $val = $this->bandwidth_in;
                        }
                        if($this->iconscalevar == 'out')
                        {
                                $pc = $this->outpercent;
                                $col = $this->colours[OUT];
                                $val = $this->bandwidth_out;
                        }

                        if($this->iconscaletype=='percent')
                        {
                                list($colicon,$node_iconscalekey,$icontag) = 
                                        $map->NewColourFromPercent($pc, $this->useiconscale,$this->name );      
                        }
                        else
                        {
                                // use the absolute value if we aren't doing percentage scales.
                                list($colicon,$node_iconscalekey,$icontag) = 
                                        $map->NewColourFromPercent($val, $this->useiconscale,$this->name, FALSE );
                        }
                }

                // figure out a bounding rectangle for the label
                if ($this->label != '')
                {
                        $padding = 4.0;
                        $padfactor = 1.0;

                        $this->proclabel = $map->ProcessString($this->label,$this,TRUE,TRUE);
                        
                        // if screenshot_mode is enabled, wipe any letters to X and wipe any IP address to 127.0.0.1
                        // hopefully that will preserve enough information to show cool stuff without leaking info
                        if($map->get_hint('screenshot_mode')==1)  $this->proclabel = screenshotify($this->proclabel);
                        
                        list($strwidth, $strheight) = $map->myimagestringsize($this->labelfont, $this->proclabel);

                        if($this->labelangle==90 || $this->labelangle==270)
                        {
                                $boxwidth = ($strheight * $padfactor) + $padding;
                                $boxheight = ($strwidth * $padfactor) + $padding;
                                debug ("Node->pre_render: ".$this->name." Label Metrics are: $strwidth x $strheight -> $boxwidth x $boxheight\n");
                                
                                $label_x1 = $this->x - ($boxwidth / 2);
                                $label_y1 = $this->y - ($boxheight / 2);

                                $label_x2 = $this->x + ($boxwidth / 2);
                                $label_y2 = $this->y + ($boxheight / 2);

                                if($this->labelangle==90)
                                {
                                        $txt_x = $this->x + ($strheight / 2);
                                        $txt_y = $this->y + ($strwidth / 2);
                                }
                                if($this->labelangle==270)
                                {
                                        $txt_x = $this->x - ($strheight / 2);
                                        $txt_y = $this->y - ($strwidth / 2);
                                }
                        }
                        
                        if($this->labelangle==0 || $this->labelangle==180)
                        {
                                $boxwidth = ($strwidth * $padfactor) + $padding;
                                $boxheight = ($strheight * $padfactor) + $padding;
                                debug ("Node->pre_render: ".$this->name." Label Metrics are: $strwidth x $strheight -> $boxwidth x $boxheight\n");
                                                        
                                $label_x1 = $this->x - ($boxwidth / 2);
                                $label_y1 = $this->y - ($boxheight / 2);

                                $label_x2 = $this->x + ($boxwidth / 2);
                                $label_y2 = $this->y + ($boxheight / 2);

                                $txt_x = $this->x - ($strwidth / 2);
                                $txt_y = $this->y + ($strheight / 2);
                                
                                if($this->labelangle==180)
                                {
                                        $txt_x = $this->x + ($strwidth / 2);
                                        $txt_y = $this->y - ($strheight / 2);
                                }

                                # $this->width = $boxwidth;
                                # $this->height = $boxheight;
                        }
                        $map->nodes[$this->name]->width = $boxwidth;
                        $map->nodes[$this->name]->height = $boxheight;

                        # print "TEXT at $txt_x , $txt_y\n";
                }

                // figure out a bounding rectangle for the icon
                if ($this->iconfile != '')
                {
                        $icon_im = NULL;
                        $icon_w = 0;
                        $icon_h = 0;

                        if($this->iconfile == 'rbox' || $this->iconfile == 'box' || $this->iconfile == 'round' || $this->iconfile == 'inpie' || $this->iconfile == 'outpie' || $this->iconfile == 'gauge' || $this->iconfile == 'nink')
                        {
                                debug("Artificial Icon type " .$this->iconfile. " for $this->name\n");
                                // this is an artificial icon - we don't load a file for it

                                $icon_im = imagecreatetruecolor($this->iconscalew,$this->iconscaleh);
                                imageSaveAlpha($icon_im, TRUE);

                                $nothing=imagecolorallocatealpha($icon_im,128,0,0,127);
                                imagefill($icon_im, 0, 0, $nothing);

                                $fill = NULL;
                                $ink = NULL;

                                $aifill = new Colour($this->aiconfillcolour);
                                $aiink = new Colour($this->aiconoutlinecolour);

                                if ( $aifill->is_copy() && !$col->is_none() )
                                {
                                        $fill = $col;
                                }
                                else
                                {
                                        if($aifill->is_real())
                                        {
                                                $fill = $aifill;
                                        }
                                }

                                if ($this->aiconoutlinecolour != array(-1,-1,-1))
                                {
                                        $ink=$aiink;
                                }

                                if($this->iconfile=='box')
                                {
                                        if($fill !== NULL && !$fill->is_none())
                                        {
                                                imagefilledrectangle($icon_im, 0, 0, $this->iconscalew-1, $this->iconscaleh-1, $fill->gdallocate($icon_im) );
                                        }

                                        if($ink !== NULL && !$ink->is_none())
                                        {
                                                imagerectangle($icon_im, 0, 0, $this->iconscalew-1, $this->iconscaleh-1, $ink->gdallocate($icon_im) );
                                        }
                                }

                                if($this->iconfile=='rbox')
                                {
                                        if($fill !== NULL && !$fill->is_none())
                                        {
                                                imagefilledroundedrectangle($icon_im, 0, 0, $this->iconscalew-1, $this->iconscaleh-1, 4, $fill->gdallocate($icon_im) );
                                        }

                                        if($ink !== NULL && !$ink->is_none())
                                        {
                                                imageroundedrectangle($icon_im, 0, 0, $this->iconscalew-1, $this->iconscaleh-1, 4, $ink->gdallocate($icon_im) );
                                        }
                                }

                                if($this->iconfile=='round')
                                {
                                        $rx = $this->iconscalew/2-1;
                                        $ry = $this->iconscaleh/2-1;

                                        if($fill !== NULL && !$fill->is_none() )
                                        {
                                                imagefilledellipse($icon_im,$rx,$ry,$rx*2,$ry*2,$fill->gdallocate($icon_im) );
                                        }

                                        if($ink !== NULL && !$ink->is_none())
                                        {
                                                imageellipse($icon_im,$rx,$ry,$rx*2,$ry*2,$ink->gdallocate($icon_im) );
                                        }
                                }

                                if($this->iconfile=='nink')
                                { 
                                        // print "NINK **************************************************************\n";
                                        $rx = $this->iconscalew/2-1;
                                        $ry = $this->iconscaleh/2-1;
                                        $size = $this->iconscalew;
                                        $quarter = $size/4;                             
                                        
                                        $col1 = $this->colours[IN];
                                        $col2 = $this->colours[OUT];
                                        
                                        assert('!is_null($col1)');
                                        assert('!is_null($col2)');
                                        
                                        imagefilledarc($icon_im, $rx-1, $ry, $size, $size, 270,90, $col1->gdallocate($icon_im), IMG_ARC_PIE);
                                        imagefilledarc($icon_im, $rx+1, $ry, $size, $size, 90,270, $col2->gdallocate($icon_im), IMG_ARC_PIE);

                                        imagefilledarc($icon_im, $rx-1, $ry+$quarter, $quarter*2, $quarter*2, 0,360, $col1->gdallocate($icon_im), IMG_ARC_PIE);
                                        imagefilledarc($icon_im, $rx+1, $ry-$quarter, $quarter*2, $quarter*2, 0,360, $col2->gdallocate($icon_im), IMG_ARC_PIE);
                                        
                                        if($ink !== NULL && !$ink->is_none())
                                        {
                                                // XXX - need a font definition from somewhere for NINK text
                                                $font = 1;
                                                
                                                $instr = $map->ProcessString("{node:this:bandwidth_in:%.1k}",$this);
                                                $outstr = $map->ProcessString("{node:this:bandwidth_out:%.1k}",$this);
                                                                                                                                                
                                                list($twid,$thgt) = $map->myimagestringsize($font,$instr);
                                                $map->myimagestring($icon_im, $font, $rx - $twid/2, $ry- $quarter + ($thgt/2),$instr,$ink->gdallocate($icon_im));
                                                
                                                list($twid,$thgt) = $map->myimagestringsize($font,$outstr);
                                                $map->myimagestring($icon_im, $font, $rx - $twid/2,  $ry + $quarter + ($thgt/2),$outstr,$ink->gdallocate($icon_im));
                                                
                                                imageellipse($icon_im,$rx,$ry,$rx*2,$ry*2,$ink->gdallocate($icon_im) ); 
                                                // imagearc($icon_im, $rx,$ry,$quarter*4,$quarter*4, 0,360, $ink->gdallocate($icon_im));
                                        }
                                        // print "NINK ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^\n";
                                }
                                
                                // XXX - needs proper colours
                                if($this->iconfile=='inpie' || $this->iconfile=='outpie')
                                { 
                                        # list($colpie,$node_iconscalekey,$icontag) = $map->NewColourFromPercent($pc, $this->useiconscale,$this->name);
                                        
                                        if($this->iconfile=='inpie') $segment_angle = (($this->inpercent)/100) * 360;
                                        if($this->iconfile=='outpie') $segment_angle = (($this->outpercent)/100) * 360;
                                        
                                        $rx = $this->iconscalew/2-1;
                                        $ry = $this->iconscaleh/2-1;
                                                                                
                                        if($fill !== NULL && !$fill->is_none() )
                                        {
                                                imagefilledellipse($icon_im, $rx, $ry, $rx*2, $ry*2, $fill->gdallocate($icon_im) );
                                        }
                                        
                                        if($ink !== NULL && !$ink->is_none())
                                        {
                                                // imagefilledarc  ( resource $image  , int $cx  , int $cy  , int $width  , int $height  , int $start  , int $end  , int $color  , int $style  )
                                                imagefilledarc($icon_im, $rx, $ry, $rx*2,$ry*2, 0, $segment_angle, $ink->gdallocate($icon_im) , IMG_ARC_PIE);
                                        }
                                        
                                        if($fill !== NULL && !$fill->is_none() )
                                        {
                                                imageellipse($icon_im, $rx, $ry, $rx*2, $ry*2, $fill->gdallocate($icon_im) );
                                        }
                                        
                                        // warn('inpie AICON not implemented yet [WMWARN99]'); 
                                }
                                
                                // if($this->iconfile=='outpie') { warn('outpie AICON not implemented yet [WMWARN99]'); }
                                if($this->iconfile=='gauge') { warn('gauge AICON not implemented yet [WMWARN99]'); }

                        }
                        else
                        {
                                $this->iconfile = $map->ProcessString($this->iconfile ,$this);
                                if (is_readable($this->iconfile))
                                {
                                        imagealphablending($im, true);
                                        // draw the supplied icon, instead of the labelled box

                                        $icon_im = imagecreatefromfile($this->iconfile);
                                        # $icon_im = imagecreatefrompng($this->iconfile);
                                        if(function_exists("imagefilter") && isset($colicon) && $this->get_hint("use_imagefilter")==1)
                                        {                                               
                                                imagefilter($icon_im, IMG_FILTER_COLORIZE, $colicon->r, $colicon->g, $colicon->b);                                              
                                        }
                                        else
                                        {
                                            if(isset($colicon))
                                            {
                                                // debug("Skipping unavailable imagefilter() call.\n");
                                                imagecolorize($icon_im, $colicon->r, $colicon->g, $colicon->b);
                                            }
                                        }

                                        debug("If this is the last thing in your logs, you probably have a buggy GD library. Get > 2.0.33 or use PHP builtin.\n");
                                        if ($icon_im)
                                        {
                                                $icon_w = imagesx($icon_im);
                                                $icon_h = imagesy($icon_im);

                                                if(($this->iconscalew * $this->iconscaleh) > 0)
                                                {
                                                        imagealphablending($icon_im, true);

                                                        debug("SCALING ICON here\n");
                                                        if($icon_w > $icon_h)
                                                        {
                                                                $scalefactor = $icon_w/$this->iconscalew;
                                                        }
                                                        else
                                                        {
                                                                $scalefactor = $icon_h/$this->iconscaleh;
                                                        }
                                                        $new_width = $icon_w / $scalefactor;
                                                        $new_height = $icon_h / $scalefactor;
                                                        $scaled = imagecreatetruecolor($new_width, $new_height);
                                                        imagealphablending($scaled,false);
                                                        imagecopyresampled($scaled, $icon_im, 0, 0, 0, 0, $new_width, $new_height, $icon_w, $icon_h);
                                                        imagedestroy($icon_im);
                                                        $icon_im = $scaled;

                                                }
                                        }
                                        else { warn ("Couldn't open ICON: '" . $this->iconfile . "' - is it a PNG, JPEG or GIF? [WMWARN37]\n"); }
                                }
                                else
                                {
                                        if($this->iconfile != 'none')
                                        {
                                                warn ("ICON '" . $this->iconfile . "' does not exist, or is not readable. Check path and permissions. [WMARN38]\n");
                                        }
                                }
                        }

                        if($icon_im)
                        {
                                $icon_w = imagesx($icon_im);
                                $icon_h = imagesy($icon_im);

                                $icon_x1 = $this->x - $icon_w / 2;
                                $icon_y1 = $this->y - $icon_h / 2;
                                $icon_x2 = $this->x + $icon_w / 2;
                                $icon_y2 = $this->y + $icon_h / 2;

                                $map->nodes[$this->name]->width = imagesx($icon_im);
                                $map->nodes[$this->name]->height = imagesy($icon_im);

                                // $map->imap->addArea("Rectangle", "NODE:" . $this->name . ':0', '', array($icon_x1, $icon_y1, $icon_x2, $icon_y2));
                                $map->nodes[$this->name]->boundingboxes[] = array($icon_x1, $icon_y1, $icon_x2, $icon_y2);
                        }

                }



                // do any offset calculations
                $dx=0;
                $dy=0;
                if ( ($this->labeloffset != '') && (($this->iconfile != '')) )
                {
                        $this->labeloffsetx = 0;
                        $this->labeloffsety = 0;

                        list($dx, $dy) = calc_offset($this->labeloffset,
                                ($icon_w + $boxwidth -1),
                                ($icon_h + $boxheight)
                        );

                        #$this->labeloffsetx = $dx;
                        #$this->labeloffsety = $dy;

                }

                $label_x1 += ($this->labeloffsetx + $dx);
                $label_x2 += ($this->labeloffsetx + $dx);
                $label_y1 += ($this->labeloffsety + $dy);
                $label_y2 += ($this->labeloffsety + $dy);

                if($this->label != '')
                {
                        // $map->imap->addArea("Rectangle", "NODE:" . $this->name .':1', '', array($label_x1, $label_y1, $label_x2, $label_y2));
                        $map->nodes[$this->name]->boundingboxes[] = array($label_x1, $label_y1, $label_x2, $label_y2);
                }

                // work out the bounding box of the whole thing

                $bbox_x1 = min($label_x1,$icon_x1);
                $bbox_x2 = max($label_x2,$icon_x2)+1;
                $bbox_y1 = min($label_y1,$icon_y1);
                $bbox_y2 = max($label_y2,$icon_y2)+1;

                #           imagerectangle($im,$bbox_x1,$bbox_y1,$bbox_x2,$bbox_y2,$map->selected);
                #         imagerectangle($im,$label_x1,$label_y1,$label_x2,$label_y2,$map->black);
                #       imagerectangle($im,$icon_x1,$icon_y1,$icon_x2,$icon_y2,$map->black);

                // create TWO imagemap entries - one for the label and one for the icon
                // (so we can have close-spaced icons better)


                $temp_width = $bbox_x2-$bbox_x1;
                $temp_height = $bbox_y2-$bbox_y1;
                // create an image of that size and draw into it
                $node_im=imagecreatetruecolor($temp_width,$temp_height );
                // ImageAlphaBlending($node_im, FALSE);
                imageSaveAlpha($node_im, TRUE);

                $nothing=imagecolorallocatealpha($node_im,128,0,0,127);
                imagefill($node_im, 0, 0, $nothing);

                #$col = $col->gdallocate($node_im);

                // imagefilledrectangle($node_im,0,0,$temp_width,$temp_height,  $nothing);

                $label_x1 -= $bbox_x1;
                $label_x2 -= $bbox_x1;
                $label_y1 -= $bbox_y1;
                $label_y2 -= $bbox_y1;

                $icon_x1 -= $bbox_x1;
                $icon_x2 -= $bbox_x1;
                $icon_y1 -= $bbox_y1;
                $icon_y2 -= $bbox_y1;


                // Draw the icon, if any
                if(isset($icon_im))
                {
                        imagecopy($node_im, $icon_im, $icon_x1, $icon_y1, 0, 0, imagesx($icon_im), imagesy($icon_im));
                        imagedestroy($icon_im);
                }

                // Draw the label, if any
                if ($this->label != '')
                {
                        $txt_x -= $bbox_x1;
                        $txt_x += ($this->labeloffsetx + $dx);
                        $txt_y -= $bbox_y1;
                        $txt_y += ($this->labeloffsety + $dy);

                        #       print "FINAL TEXT at $txt_x , $txt_y\n";

                        // if there's an icon, then you can choose to have no background

                        if(! $col->is_none() )
                        {
                            imagefilledrectangle($node_im, $label_x1, $label_y1, $label_x2, $label_y2, $col->gdallocate($node_im));
                        }

                        if ($this->selected)
                        {
                                imagerectangle($node_im, $label_x1, $label_y1, $label_x2, $label_y2, $map->selected);
                                // would be nice if it was thicker, too...
                                wimagerectangle($node_im, $label_x1 + 1, $label_y1 + 1, $label_x2 - 1, $label_y2 - 1, $map->selected);
                        }
                        else
                        {
                                $olcol = new Colour($this->labeloutlinecolour);
                                if ($olcol->is_real())
                                {
                                        imagerectangle($node_im, $label_x1, $label_y1, $label_x2, $label_y2, $olcol->gdallocate($node_im));
                                }
                        }
                        #}

                        $shcol = new Colour($this->labelfontshadowcolour);
                        if ($shcol->is_real())
                        {
                                $map->myimagestring($node_im, $this->labelfont, $txt_x + 1, $txt_y + 1, $this->proclabel, $shcol->gdallocate($node_im),$this->labelangle);
                        }

                        $txcol = new Colour($this->labelfontcolour[0],$this->labelfontcolour[1],$this->labelfontcolour[2]);
                        #$col=myimagecolorallocate($node_im, $this->labelfontcolour[0], $this->labelfontcolour[1],
                        #       $this->labelfontcolour[2]);
                        if($txcol->is_contrast())
                        {
                                if($col->is_real())
                                {
                                        $txcol = $col->contrast();
                                }
                                else
                                {
                                        warn("You can't make a contrast with 'none'. [WMWARN43]\n");
                                        $txcol = new Colour(0,0,0);
                                }
                        }
                        $map->myimagestring($node_im, $this->labelfont, $txt_x, $txt_y, $this->proclabel, $txcol->gdallocate($node_im),$this->labelangle);
                        //$map->myimagestring($node_im, $this->labelfont, $txt_x, $txt_y, $this->proclabel, $txcol->gdallocate($node_im),90);
                }

                # imagerectangle($node_im,$label_x1,$label_y1,$label_x2,$label_y2,$map->black);
                # imagerectangle($node_im,$icon_x1,$icon_y1,$icon_x2,$icon_y2,$map->black);

                $map->nodes[$this->name]->centre_x = $this->x - $bbox_x1;
                $map->nodes[$this->name]->centre_y = $this->y - $bbox_y1;

                if(1==0)
                {

                        imageellipse($node_im, $this->centre_x, $this->centre_y, 8, 8, $map->selected);

                        foreach (array("N","S","E","W","NE","NW","SE","SW") as $corner)
                        {
                                list($dx, $dy)=calc_offset($corner, $this->width, $this->height);
                                imageellipse($node_im, $this->centre_x + $dx, $this->centre_y + $dy, 5, 5, $map->selected);
                        }
                }

                # $this->image = $node_im;
                $map->nodes[$this->name]->image = $node_im;
        }

        function update_cache($cachedir,$mapname)
        {
                $cachename = $cachedir."/node_".md5($mapname."/".$this->name).".png";
                // save this image to a cache, for the editor
                imagepng($this->image,$cachename);
        }

        // draw the node, using the pre_render() output
        function NewDraw($im, &$map)
        {
                // take the offset we figured out earlier, and just blit
                // the image on. Who says "blit" anymore?

                // it's possible that there is no image, so better check.
                if(isset($this->image))
                {
                        imagealphablending($im, true);
                        imagecopy ( $im, $this->image, $this->x - $this->centre_x, $this->y - $this->centre_y, 0, 0, imagesx($this->image), imagesy($this->image) );
                }

        }

        // take the pre-rendered node and write it to a file so that
        // the editor can get at it.
        function WriteToCache()
        {
        }

        function Reset(&$newowner)
        {
                $this->owner=$newowner;
                $template = $this->template;
        
                if($template == '') $template = "DEFAULT";

                debug("Resetting $this->name with $template\n");
                
                // the internal default-default gets it's values from inherit_fieldlist
                // everything else comes from a node object - the template.
                if($this->name==':: DEFAULT ::')
                {
                        foreach (array_keys($this->inherit_fieldlist)as
                                $fld) { $this->$fld=$this->inherit_fieldlist[$fld]; }
                }
                else
                {
                        $this->CopyFrom($this->owner->nodes[$template]); 
                }
                $this->template = $template;
                
                // to stop the editor tanking, now that colours are decided earlier in ReadData
                $this->colours[IN] = new Colour(192,192,192);
                $this->colours[OUT] = new Colour(192,192,192);
                
                $this->id = $newowner->next_id++;
        }

        function CopyFrom(&$source)
        {
                debug("Initialising NODE $this->name from $source->name\n");
                assert('is_object($source)');
                
                foreach (array_keys($this->inherit_fieldlist)as $fld) {
                        if($fld != 'template') $this->$fld=$source->$fld;
                }
        }

        function WriteConfig()
        {
                $output='';
                                
                # $output .= "# ID ".$this->id." - first seen in ".$this->defined_in."\n";

                // This allows the editor to wholesale-replace a single node's configuration
                // at write-time - it should include the leading NODE xyz line (to allow for renaming)
                if($this->config_override != '')
                {
                        $output  = $this->config_override."\n";
                }
                else
                {
                        # $defdef = $this->owner->defaultnode;
                        $dd = $this->owner->nodes[$this->template];
                        
                        debug("Writing config for NODE $this->name against $this->template\n");
                        
                        # $field = 'zorder'; $keyword = 'ZORDER';
                        $basic_params = array(
                                        # array('template','TEMPLATE',CONFIG_TYPE_LITERAL),
                                        array('label','LABEL',CONFIG_TYPE_LITERAL),
                                        array('zorder','ZORDER',CONFIG_TYPE_LITERAL),
                                        array('labeloffset','LABELOFFSET',CONFIG_TYPE_LITERAL),
                                        array('labelfont','LABELFONT',CONFIG_TYPE_LITERAL),
                                        array('labelangle','LABELANGLE',CONFIG_TYPE_LITERAL),
                                        array('overlibwidth','OVERLIBWIDTH',CONFIG_TYPE_LITERAL),
                                        array('overlibheight','OVERLIBHEIGHT',CONFIG_TYPE_LITERAL),

                                        array('aiconoutlinecolour','AICONOUTLINECOLOR',CONFIG_TYPE_COLOR),
                                        array('aiconfillcolour','AICONFILLCOLOR',CONFIG_TYPE_COLOR),
                                        array('labeloutlinecolour','LABELOUTLINECOLOR',CONFIG_TYPE_COLOR),
                                        array('labelfontshadowcolour','LABELFONTSHADOWCOLOR',CONFIG_TYPE_COLOR),
                                        array('labelbgcolour','LABELBGCOLOR',CONFIG_TYPE_COLOR),
                                        array('labelfontcolour','LABELFONTCOLOR',CONFIG_TYPE_COLOR)
                                );
                        
                        # TEMPLATE must come first. DEFAULT
                        if($this->template != 'DEFAULT' && $this->template != ':: DEFAULT ::')
                        {
                                $output.="\tTEMPLATE " . $this->template . "\n";
                        }
                        
                        foreach ($basic_params as $param)
                        {
                                $field = $param[0];
                                $keyword = $param[1];

                        #       $comparison=($this->name == 'DEFAULT' ? $this->inherit_fieldlist[$field] : $defdef->$field);
                                if ($this->$field != $dd->$field)
                                {
                                        if($param[2] == CONFIG_TYPE_COLOR) $output.="\t$keyword " . render_colour($this->$field) . "\n";
                                        if($param[2] == CONFIG_TYPE_LITERAL) $output.="\t$keyword " . $this->$field . "\n";
                                }
                        }

                        // IN/OUT are the same, so we can use the simpler form here
#                       print_r($this->infourl);
                        #$comparison=($this->name == 'DEFAULT'
                        #? $this->inherit_fieldlist['infourl'][IN] : $defdef->infourl[IN]);
                        if ($this->infourl[IN] != $dd->infourl[IN]) { $output.="\tINFOURL " . $this->infourl[IN] . "\n"; }
                        
                        #$comparison=($this->name == 'DEFAULT'
                        #? $this->inherit_fieldlist['overlibcaption'][IN] : $defdef->overlibcaption[IN]);
                        if ($this->overlibcaption[IN] != $dd->overlibcaption[IN]) { $output.="\tOVERLIBCAPTION " . $this->overlibcaption[IN] . "\n"; }

                        // IN/OUT are the same, so we can use the simpler form here
                        # $comparison=($this->name == 'DEFAULT'
                        # ? $this->inherit_fieldlist['notestext'][IN] : $defdef->notestext[IN]);
                        if ($this->notestext[IN] != $dd->notestext[IN]) { $output.="\tNOTES " . $this->notestext[IN] . "\n"; }

                        # $comparison=($this->name == 'DEFAULT'
                        # ? $this->inherit_fieldlist['overliburl'][IN] : $defdef->overliburl[IN]);
                        if ($this->overliburl[IN] != $dd->overliburl[IN]) { $output.="\tOVERLIBGRAPH " . join(" ",$this->overliburl[IN]) . "\n"; }

                        $val = $this->iconscalew. " " . $this->iconscaleh. " " .$this->iconfile;

                        $comparison = $dd->iconscalew. " " . $dd->iconscaleh . " " . $dd->iconfile;

                        if ($val != $comparison) {
                                $output.="\tICON ";
                                if($this->iconscalew > 0) {
                                        $output .= $this->iconscalew." ".$this->iconscaleh." ";
                                }
                                $output .= ($this->iconfile=='' ?  'none' : $this->iconfile) . "\n";
                        }

                        # $comparison=($this->name == 'DEFAULT'
                        # ? $this->inherit_fieldlist['targets'] : $defdef->targets);

                        if ($this->targets != $dd->targets)
                        {
                                $output.="\tTARGET";

                                foreach ($this->targets as $target) { 
                                        if(strpos($target[4]," ") == FALSE) 
                                        {
                                                $output.=" " . $target[4]; 
                                        }
                                        else
                                        {
                                                $output.=' "' . $target[4].'"'; 
                                        }
                                }
                                

                                $output.="\n";
                        }

                #       $comparison = ($this->name == 'DEFAULT' ? $this->inherit_fieldlist['usescale'] : $defdef->usescale) . " " .
                #               ($this->name == 'DEFAULT' ? $this->inherit_fieldlist['scalevar'] : $defdef->scalevar);
                        $val = $this->usescale . " " . $this->scalevar;
                        $comparison = $dd->usescale . " " . $dd->scalevar;

                        if ( ($val != $comparison) ) { $output.="\tUSESCALE " . $val . "\n"; }

#                       $comparison = ($this->name == 'DEFAULT'
#                               ? $this->inherit_fieldlist['useiconscale'] : $defdef->useiconscale) . " " .
#                               ($this->name == 'DEFAULT' ? $this->inherit_fieldlist['iconscalevar'] : $defdef->iconscalevar);
                        $val = $this->useiconscale . " " . $this->iconscalevar;
                        $comparison= $dd->useiconscale . " " . $dd->iconscalevar;
                                
                        if ( $val != $comparison) { $output.="\tUSEICONSCALE " .$val . "\n"; }

                        #$comparison = ($this->name == 'DEFAULT'
                        #? $this->inherit_fieldlist['labeloffsetx'] : $defdef->labeloffsetx) . " " . ($this->name == 'DEFAULT'
                #               ? $this->inherit_fieldlist['labeloffsety'] : $defdef->labeloffsety);
                        $val = $this->labeloffsetx . " " . $this->labeloffsety;
                        $comparison = $dd->labeloffsetx . " " . $dd->labeloffsety;

                        if ($comparison != $val ) { $output.="\tLABELOFFSET " . $val . "\n"; }

                        #$comparison=($this->name == 'DEFAULT' ? $this->inherit_fieldlist['x'] : $defdef->x) . " " . 
                        #                       ($this->name == 'DEFAULT' ? $this->inherit_fieldlist['y'] : $defdef->y);
                        $val = $this->x . " " . $this->y;
                        $comparison = $dd->x . " " . $dd->y;
                        
                        if ($val != $comparison)
                        {
                                if($this->relative_to == '')
                                { $output.="\tPOSITION " . $val . "\n"; }
                                else
                                {
                                        if($this->polar)
                                        {
                                                $output .= "\tPOSITION ".$this->relative_to . " " .  $this->original_x . "r" . $this->original_y . "\n";
                                        }
                                        else
                                        {
                                                $output.="\tPOSITION " . $this->relative_to . " " .  $this->original_x . " " . $this->original_y . "\n";
                                        }
                                }
                        }

                        if (($this->max_bandwidth_in != $dd->max_bandwidth_in)
                                || ($this->max_bandwidth_out != $dd->max_bandwidth_out)
                                        || ($this->name == 'DEFAULT'))
                        {
                                if ($this->max_bandwidth_in == $this->max_bandwidth_out)
                                { $output.="\tMAXVALUE " . $this->max_bandwidth_in_cfg . "\n"; }
                                else { $output
                                .="\tMAXVALUE " . $this->max_bandwidth_in_cfg . " " . $this->max_bandwidth_out_cfg . "\n"; }
                        }

                        foreach ($this->hints as $hintname=>$hint)
                        {
                          // all hints for DEFAULT node are for writing
                          // only changed ones, or unique ones, otherwise
                              if(
                            ($this->name == 'DEFAULT')
                          ||
                                    (isset($dd->hints[$hintname])
                                    &&
                                    $dd->hints[$hintname] != $hint)
                                  ||
                                    (!isset($dd->hints[$hintname]))
                                )
                              {
                            $output .= "\tSET $hintname $hint\n";
                              }
                        }
                        if ($output != '')
                        {
                                $output = "NODE " . $this->name . "\n$output\n";
                        }
                }
                return ($output);
        }

        function asJS()
        {
                $js = '';
                $js .= "Nodes[" . js_escape($this->name) . "] = {";
                $js .= "x:" . (is_null($this->x)? "'null'" : $this->x) . ", ";
                $js .= "y:" . (is_null($this->y)? "'null'" : $this->y) . ", ";
                $js .= "\"id\":" . $this->id. ", ";
                // $js.="y:" . $this->y . ", ";
                $js.="ox:" . $this->original_x . ", ";
                $js.="oy:" . $this->original_y . ", ";
                $js.="relative_to:" . js_escape($this->relative_to) . ", ";
                $js.="label:" . js_escape($this->label) . ", ";
                $js.="name:" . js_escape($this->name) . ", ";
                $js.="infourl:" . js_escape($this->infourl[IN]) . ", ";
                $js.="overlibcaption:" . js_escape($this->overlibcaption[IN]) . ", ";
                $js.="overliburl:" . js_escape(join(" ",$this->overliburl[IN])) . ", ";
                $js.="overlibwidth:" . $this->overlibheight . ", ";
                $js.="overlibheight:" . $this->overlibwidth . ", ";
                if(preg_match("/^(none|nink|inpie|outpie|box|rbox|gauge|round)$/",$this->iconfile))
                {
                        $js.="iconfile:" . js_escape("::".$this->iconfile);
                }
                else
                {
                        $js.="iconfile:" . js_escape($this->iconfile);
                }
                
                $js .= "};\n";
                $js .= "NodeIDs[\"N" . $this->id . "\"] = ". js_escape($this->name) . ";\n";
                return $js;
        }

        function asJSON($complete=TRUE)
        {
                $js = '';
                $js .= "" . js_escape($this->name) . ": {";
                $js .= "\"id\":" . $this->id. ", ";
                $js .= "\"x\":" . ($this->x - $this->centre_x). ", ";
                $js .= "\"y\":" . ($this->y - $this->centre_y) . ", ";
                $js .= "\"cx\":" . $this->centre_x. ", ";
                $js .= "\"cy\":" . $this->centre_y . ", ";
                $js .= "\"ox\":" . $this->original_x . ", ";
                $js .= "\"oy\":" . $this->original_y . ", ";
                $js .= "\"relative_to\":" . js_escape($this->relative_to) . ", ";
                $js .= "\"name\":" . js_escape($this->name) . ", ";
                if($complete)
                {
                        $js .= "\"label\":" . js_escape($this->label) . ", ";
                        $js .= "\"infourl\":" . js_escape($this->infourl) . ", ";
                        $js .= "\"overliburl\":" . js_escape($this->overliburl) . ", ";
                        $js .= "\"overlibcaption\":" . js_escape($this->overlibcaption) . ", ";

                        $js .= "\"overlibwidth\":" . $this->overlibheight . ", ";
                        $js .= "\"overlibheight\":" . $this->overlibwidth . ", ";
                        $js .= "\"iconfile\":" . js_escape($this->iconfile). ", ";
                }
                $js .= "\"iconcachefile\":" . js_escape($this->cachefile);
                $js .= "},\n";
                return $js;
        }
};

// vim:ts=4:sw=4:
?>

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