/**
* Draw the marker on the canvas
* @param int $x The X (horizontal) position (in pixels) of the marker on the canvas
* @param int $y The Y (vertical) position (in pixels) of the marker on the canvas
* @param array $values The values representing the data the marker "points" to
* @access private
*/
function _drawMarker($x, $y, $values = false)
{
parent::_drawMarker($x, $y, $values);
if ($this->_markerStart) {
$this->_markerStart->_drawMarker($x, $y, $values);
}
// Modified: Don't draw pointer if line thickness is zero
if ($this->_getLineStyle() != 0) ImageLine($this->_canvas(), $x, $y, $x + $this->_deltaX, $y + $this->_deltaY, $this->_getLineStyle());
$this->_markerEnd->_drawMarker($x + $this->_deltaX, $y + $this->_deltaY, $values);
}
/**
* Draw the marker on the canvas
*
* @param int $x The X (horizontal) position (in pixels) of the marker on
* the canvas
* @param int $y The Y (vertical) position (in pixels) of the marker on the
* canvas
* @param array $values The values representing the data the marker 'points'
* to
* @access private
*/
function _drawMarker($x, $y, $values = false)
{
parent::_drawMarker($x, $y, $values);
if ($this->_markerStart) {
$this->_markerStart->_setParent($this);
$this->_markerStart->_drawMarker($x, $y, $values);
}
$this->_getLineStyle();
$this->_canvas->line(array('x0' => $x, 'y0' => $y, 'x1' => $x + $this->_deltaX, 'y1' => $y + $this->_deltaY));
$this->_markerEnd->_setParent($this);
$this->_markerEnd->_drawMarker($x + $this->_deltaX, $y + $this->_deltaY, $values);
}
/**
* Draw a sample for use with legend
* @param int $x The x coordinate to draw the sample at
* @param int $y The y coordinate to draw the sample at
* @access private
*/
function _legendSample($x, $y, &$font)
{
if (is_a($this->_fillStyle, "Image_Graph_Fill")) {
$fillStyle = $this->_fillStyle->_getFillStyleAt($x -5, $y -5, 10, 10);
} else {
$fillStyle = $this->_getFillStyle();
}
if ($fillStyle != IMG_COLOR_TRANSPARENT) {
ImageFilledRectangle($this->_canvas(), $x -5, $y -5, $x +5, $y +5, $fillStyle);
ImageRectangle($this->_canvas(), $x -5, $y -5, $x +5, $y +5, $this->_getLineStyle());
} else {
ImageLine($this->_canvas(), $x -7, $y, $x +7, $y, $this->_getLineStyle());
}
if (($this->_marker) and ($this->_dataset)) {
$this->_dataset->_reset();
$point = $this->_dataset->_next();
$prevPoint = $this->_dataset->_nearby(-2);
$nextPoint = $this->_dataset->_nearby();
$point = $this->_getMarkerData($point, $nextPoint, $prevPoint, $i);
if (is_array($point)) {
$point['MARKER_X'] = $x;
$point['MARKER_Y'] = $y;
unset ($point['AVERAGE_Y']);
$this->_marker->_drawMarker($point['MARKER_X'], $point['MARKER_Y'], $point);
}
}
$text = new Image_Graph_Text($x + 20, $y, $this->_title, $font);
$text->setAlignment(IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT);
$this->add($text);
$text->_done();
return array('Width' => 20+$font->width($this->_title), 'Height' => max(10, $font->height($this->_title)));
}
/**
* Draw a sample for use with legend
*
* @param array &$param The parameters for the legend
*
* @return void
* @access private
*/
function _legendSample(&$param)
{
if (!is_array($this->_dataset)) {
return false;
}
if (is_a($this->_fillStyle, 'Image_Graph_Fill')) {
$this->_fillStyle->_reset();
}
$count = 0;
$keys = array_keys($this->_dataset);
foreach ($keys as $key) {
$dataset =& $this->_dataset[$key];
$count++;
$caption = $dataset->_name ? $dataset->_name : $this->_title;
$this->_canvas->setFont($param['font']);
$width = 20 + $param['width'] + $this->_canvas->textWidth($caption);
$param['maxwidth'] = max($param['maxwidth'], $width);
$x2 = $param['x'] + $width;
$y2 = $param['y'] + $param['height'] + 5;
if (($param['align'] & IMAGE_GRAPH_ALIGN_VERTICAL) != 0 && $y2 > $param['bottom']) {
$param['y'] = $param['top'];
$param['x'] = $x2;
$y2 = $param['y'] + $param['height'];
} elseif (($param['align'] & IMAGE_GRAPH_ALIGN_VERTICAL) == 0 && $x2 > $param['right']) {
$param['x'] = $param['left'];
$param['y'] = $y2;
$x2 = $param['x'] + 20 + $param['width'] + $this->_canvas->textWidth($caption);
}
$x = $x0 = $param['x'];
$y = $param['y'];
$y0 = $param['y'];
$x1 = $param['x'] + $param['width'];
$y1 = $param['y'] + $param['height'];
if (!isset($param['simulate'])) {
$this->_getFillStyle($key);
$this->_getLineStyle();
$this->_drawLegendSample($x0, $y0, $x1, $y1);
if ($this->_marker && $dataset && $param['show_marker']) {
$dataset->_reset();
$point = $dataset->_next();
$prevPoint = $dataset->_nearby(-2);
$nextPoint = $dataset->_nearby();
$tmp = array();
$point = $this->_getMarkerData($point, $nextPoint, $prevPoint, $tmp);
if (is_array($point)) {
$point['MARKER_X'] = $x + $param['width'] / 2;
$point['MARKER_Y'] = $y;
unset($point['AVERAGE_Y']);
$this->_marker->_drawMarker($point['MARKER_X'], $point['MARKER_Y'], $point);
}
}
$this->write($x + $param['width'] + 10, $y + $param['height'] / 2, $caption, IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT, $param['font']);
}
if (($param['align'] & IMAGE_GRAPH_ALIGN_VERTICAL) != 0) {
$param['y'] = $y2;
} else {
$param['x'] = $x2;
}
}
unset($keys);
}
/**
* Draw the marker on the canvas
* @param int $x The X (horizontal) position (in pixels) of the marker on the canvas
* @param int $y The Y (vertical) position (in pixels) of the marker on the canvas
* @param array $values The values representing the data the marker "points" to
* @access private
*/
function _drawMarker($x, $y, $values = false)
{
if (is_a($this->_secondaryMarker, "Image_Graph_Marker")) {
$this->_secondaryMarker->_drawMarker($x, $y, $values);
}
}
