zoneminder/web/skins/classic/includes/timeline_functions.php

224 lines
6.6 KiB
PHP

<?php
function getDateScale($scales, $range, $minLines, $maxLines) {
foreach ( $scales as $scale ) {
$align = isset($scale['align'])?$scale['align']:1;
$scaleRange = (int)($range/($scale['factor']*$align));
//echo "S:".$scale['name'].", A:$align, SR:$scaleRange<br>";
if ( $scaleRange >= $minLines ) {
$scale['range'] = $scaleRange;
break;
}
}
if ( !isset($scale['range']) ) {
$scale['range'] = (int)($range/($scale['factor']*$align));
}
$scale['divisor'] = 1;
while ( ($scale['range']/$scale['divisor']) > $maxLines ) {
$scale['divisor']++;
}
$scale['lines'] = (int)($scale['range']/$scale['divisor']);
return $scale;
}
function getYScale($range, $minLines, $maxLines) {
$scale['range'] = $range;
$scale['divisor'] = 1;
while ( $scale['range']/$scale['divisor'] > $maxLines ) {
$scale['divisor']++;
}
$scale['lines'] = (int)(($scale['range']-1)/$scale['divisor'])+1;
return $scale;
}
function getSlotFrame($slot) {
$slotFrame = isset($slot['frame'])?$slot['frame']['FrameId']:1;
# FIXME what's with this false?
if ( false && $slotFrame ) {
$slotFrame -= $monitor['PreEventCount'];
if ( $slotFrame < 1 )
$slotFrame = 1;
}
return $slotFrame;
}
function _parseTreeToInfix($node) {
$expression = '';
if ( isset($node) ) {
if ( isset($node['left']) ) {
if ( !empty($node['data']['bracket']) )
$expression .= '( ';
$expression .= _parseTreeToInfix($node['left']);
}
$expression .= $node['data']['value'].' ';
if ( isset($node['right']) ) {
$expression .= _parseTreeToInfix($node['right']);
if ( !empty($node['data']['bracket']) )
$expression .= ') ';
}
}
return $expression;
}
function parseTreeToInfix($tree) {
return _parseTreeToInfix($tree);
}
function _parseTreeToSQL($node, $cbr=false) {
$expression = '';
if ( !$node )
return $expression;
if ( isset($node['left']) ) {
if ( !empty($node['data']['bracket']) )
$expression .= '( ';
$expression .= _parseTreeToSQL($node['left']);
}
$inExpr = $node['data']['type'] == 'op' && (
$node['data']['value'] == '=[]'
or
$node['data']['value'] == '![]'
or
$node['data']['value'] == 'IN'
or
$node['data']['value'] == 'NOT IN'
);
$expression .= $node['data']['sqlValue'];
if ( !$inExpr )
$expression .= ' ';
if ( $cbr )
$expression .= ') ';
if ( isset($node['right']) ) {
$expression .= _parseTreeToSQL($node['right'], $inExpr);
if ( !empty($node['data']['bracket']) )
$expression .= ') ';
} # end if right
return $expression;
}
function parseTreeToSQL($tree) {
return _parseTreeToSQL($tree);
}
function _parseTreeToFilter($node, &$terms, &$level) {
$elements = array();
if ( $node ) {
if ( isset($node['left']) ) {
if ( !empty($node['data']['bracket']) )
$terms[$level]['obr'] = 1;
_parseTreeToFilter( $node['left'], $terms, $level );
}
if ( $node['data']['type'] == 'cnj' ) {
$level++;
}
$terms[$level][$node['data']['type']] = $node['data']['value'];
if ( isset($node['right']) ) {
_parseTreeToFilter($node['right'], $terms, $level);
if ( !empty($node['data']['bracket']) )
$terms[$level]['cbr'] = 1;
}
}
}
function parseTreeToFilter($tree) {
$terms = array();
if ( isset($tree) ) {
$level = 0;
_parseTreeToFilter($tree, $terms, $level);
}
return array('Query' => array('terms' => $terms));
}
function parseTreeToQuery($tree) {
$filter = parseTreeToFilter($tree);
parseFilter($filter, false, '&');
return $filter['querystring'];
}
function _drawTree($node, $level) {
if ( isset($node['left']) ) {
_drawTree($node['left'], $level+1);
}
echo str_repeat('.', $level*2).$node['data']['value'].'<br/>';
if ( isset($node['right']) ) {
_drawTree($node['right'], $level+1);
}
}
function drawTree($tree) {
_drawTree($tree, 0);
}
function _extractDatetimeRange(&$node, &$minTime, &$maxTime, &$expandable, $subOr) {
$pruned = $leftPruned = $rightPruned = false;
if ( !($node and isset($node['left']) and isset($node['right']) ) ) {
return $pruned;
}
if ( $node['data']['type'] == 'cnj' && $node['data']['value'] == 'or' ) {
$subOr = true;
} else if ( !empty($node['left']['data']['dtAttr']) ) {
if ( $subOr ) {
$expandable = false;
} elseif ( $node['data']['type'] == 'op' ) {
if ( $node['data']['value'] == '>' || $node['data']['value'] == '>=' ) {
if ( !$minTime || $minTime > $node['right']['data']['sqlValue'] ) {
$minTime = $node['right']['data']['value'];
return true;
}
} else if ( $node['data']['value'] == '<' || $node['data']['value'] == '<=' ) {
if ( !$maxTime || $maxTime < $node['right']['data']['sqlValue'] ) {
$maxTime = $node['right']['data']['value'];
return true;
}
}
} else {
ZM\Fatal("Unexpected node type '".$node['data']['type']."'");
}
return false;
}
$leftPruned = _extractDatetimeRange( $node['left'], $minTime, $maxTime, $expandable, $subOr );
$rightPruned = _extractDatetimeRange( $node['right'], $minTime, $maxTime, $expandable, $subOr );
if ( $leftPruned && $rightPruned ) {
$pruned = true;
} else if ( $leftPruned ) {
$node = $node['right'];
} else if ( $rightPruned ) {
$node = $node['left'];
}
return $pruned;
}
function extractDatetimeRange( &$tree, &$minTime, &$maxTime, &$expandable ) {
$minTime = '';
$maxTime = '';
$expandable = true;
_extractDateTimeRange( $tree, $minTime, $maxTime, $expandable, false );
}
function appendDatetimeRange( &$tree, $minTime, $maxTime=false ) {
$attrNode = array( 'data'=>array( 'type'=>'attr', 'value'=>'StartDateTime', 'sqlValue'=>'E.StartTime', 'dtAttr'=>true ), 'count'=>0 );
$valNode = array( 'data'=>array( 'type'=>'val', 'value'=>$minTime, 'sqlValue'=>$minTime ), 'count'=>0 );
$opNode = array( 'data'=>array( 'type'=>'op', 'value'=>'>=', 'sqlValue'=>'>=' ), 'count'=>2, 'left'=>$attrNode, 'right'=>$valNode );
if ( isset($tree) ) {
$cnjNode = array( 'data'=>array( 'type'=>'cnj', 'value'=>'and', 'sqlValue'=>'and' ), 'count'=>2+$tree['count']+$opNode['count'], 'left'=>$tree, 'right'=>$opNode );
$tree = $cnjNode;
} else {
$tree = $opNode;
}
if ( $maxTime ) {
$attrNode = array( 'data'=>array( 'type'=>'attr', 'value'=>'StartDateTime', 'sqlValue'=>'E.StartTime', 'dtAttr'=>true ), 'count'=>0 );
$valNode = array( 'data'=>array( 'type'=>'val', 'value'=>$maxTime, 'sqlValue'=>$maxTime ), 'count'=>0 );
$opNode = array( 'data'=>array( 'type'=>'op', 'value'=>'<=', 'sqlValue'=>'<=' ), 'count'=>2, 'left'=>$attrNode, 'right'=>$valNode );
$cnjNode = array( 'data'=>array( 'type'=>'cnj', 'value'=>'and', 'sqlValue'=>'and' ), 'count'=>2+$tree['count']+$opNode['count'], 'left'=>$tree, 'right'=>$opNode );
$tree = $cnjNode;
}
}
?>