/**
* Output an axis tick mark.
*
* @param int $value The value to output
* @param int $level The label level to draw the tick for
*
* @return void
* @access private
*/
function _drawTick($value, $level = 1)
{
if (isset($this->_labelOptions[$level])) {
$labelOptions = $this->_labelOptions[$level];
$labelPosition = $this->_point($value);
if (isset($labelOptions['offset'])) {
$offset = $labelOptions['offset'];
} else {
$offset = 0;
}
if (isset($labelOptions['showtext']) && $labelOptions['showtext'] === true) {
if (is_object($this->_dataPreProcessor)) {
$labelText = $this->_dataPreProcessor->_process($value);
} elseif (isset($labelOptions['format'])) {
$labelText = sprintf($labelOptions['format'], $value);
} elseif (isset($labelOptions['dateformat'])) {
$labelText = date($labelOptions['dateformat'], $value);
} else {
$labelText = $value;
}
if (!in_array($labelText, $this->_labelText)) {
$this->_labelText[] = $labelText;
if (isset($labelOptions['font'])) {
$font = $this->_getFont($labelOptions['font']);
} else {
if ($this->_defaultFontOptions !== false) {
$font = $this->_defaultFontOptions;
} else {
$font = $this->_getFont();
}
}
$this->_canvas->setFont($font);
if (isset($labelOptions['position']) && $labelOptions['position'] == 'inside') {
$labelInside = true;
} else {
$labelInside = false;
}
if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
if ($this->_transpose) {
if ($labelInside) {
$this->write($labelPosition, $this->_top - 4 - $offset, $labelText, IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X, $font);
} else {
$this->write($labelPosition, $this->_top + 4 + $offset, $labelText, IMAGE_GRAPH_ALIGN_TOP | IMAGE_GRAPH_ALIGN_CENTER_X, $font);
}
} else {
if ($labelInside) {
$this->write($this->_right + 4 + $offset, $labelPosition, $labelText, IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT, $font);
} else {
$this->write($this->_right - 4 - $offset, $labelPosition, $labelText, IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT, $font);
}
}
} elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
if ($this->_transpose) {
if ($labelInside) {
$this->write($labelPosition, $this->_bottom + 4 + $offset, $labelText, IMAGE_GRAPH_ALIGN_TOP | IMAGE_GRAPH_ALIGN_CENTER_X, $font);
} else {
$this->write($labelPosition, $this->_bottom - 4 - $offset, $labelText, IMAGE_GRAPH_ALIGN_BOTTOM | IMAGE_GRAPH_ALIGN_CENTER_X, $font);
}
} else {
if ($labelInside) {
$this->write($this->_left - 4 - $offset, $labelPosition, $labelText, IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT, $font);
} else {
$this->write($this->_left + 4 + $offset, $labelPosition, $labelText, IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT, $font);
}
}
} else {
if ($this->_transpose) {
if ($labelInside) {
$this->write($this->_right + 4 + $offset, $labelPosition, $labelText, IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_LEFT, $font);
} else {
$this->write($this->_right - 4 - $offset, $labelPosition, $labelText, IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT, $font);
}
} else {
if ($labelInside === true) {
$this->write($labelPosition, $this->_top - 4 - $offset, $labelText, IMAGE_GRAPH_ALIGN_CENTER_X | IMAGE_GRAPH_ALIGN_BOTTOM, $font);
} else {
$this->write($labelPosition, $this->_top + 4 + $offset, $labelText, IMAGE_GRAPH_ALIGN_CENTER_X | IMAGE_GRAPH_ALIGN_TOP, $font);
}
}
}
}
}
$tickColor = false;
if (isset($this->_labelOptions[$level]['tick'])) {
if (isset($this->_labelOptions[$level]['tick']['start'])) {
$tickStart = $this->_labelOptions[$level]['tick']['start'];
} else {
$tickStart = false;
}
if (isset($this->_labelOptions[$level]['tick']['end'])) {
$tickEnd = $this->_labelOptions[$level]['tick']['end'];
} else {
$tickEnd = false;
}
if (isset($this->_labelOptions[$level]['tick']['color']) && $this->_labelOptions[$level]['tick']['color'] !== false) {
$tickColor = $this->_labelOptions[$level]['tick']['color'];
}
}
if ($tickStart === false) {
$tickStart = -2;
}
if ($tickEnd === false) {
$tickEnd = 2;
}
if ($tickColor !== false) {
$this->_canvas->setLineColor($tickColor);
} else {
$this->_getLineStyle();
}
if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
if ($tickStart === 'auto') {
$tickStart = -$offset;
}
if ($this->_transpose) {
$this->_canvas->line(array('x0' => $labelPosition, 'y0' => $this->_top + $tickStart, 'x1' => $labelPosition, 'y1' => $this->_top + $tickEnd));
} else {
$this->_canvas->line(array('x0' => $this->_right + $tickStart, 'y0' => $labelPosition, 'x1' => $this->_right + $tickEnd, 'y1' => $labelPosition));
}
} elseif ($this->_type == IMAGE_GRAPH_AXIS_Y_SECONDARY) {
if ($tickStart === 'auto') {
$tickStart = $offset;
}
if ($this->_transpose) {
$this->_canvas->line(array('x0' => $labelPosition, 'y0' => $this->_bottom - $tickStart, 'x1' => $labelPosition, 'y1' => $this->_bottom - $tickEnd));
} else {
$this->_canvas->line(array('x0' => $this->_left - $tickStart, 'y0' => $labelPosition, 'x1' => $this->_left - $tickEnd, 'y1' => $labelPosition));
}
} else {
if ($tickStart === 'auto') {
$tickStart = $offset;
}
if ($this->_transpose) {
$this->_canvas->line(array('x0' => $this->_right + $tickStart, 'y0' => $labelPosition, 'x1' => $this->_right + $tickEnd, 'y1' => $labelPosition));
} else {
$this->_canvas->line(array('x0' => $labelPosition, 'y0' => $this->_top - $tickStart, 'x1' => $labelPosition, 'y1' => $this->_top - $tickEnd));
}
}
}
}
/**
* Output the axis
* @access private
*/
function _done()
{
parent::_done();
if (!$this->_font) {
$this->_font = $GLOBALS['_Image_Graph_font'];
}
$value = $this->_getNextLabel();
$lastPosition = false;
$this->_debug("Enumerating values from $value to ".$this->_getMaximum());
while ($value <= $this->_getMaximum()) {
if ((((abs($value) > 0.0001) or ($this->_showLabelZero)) and (($value > $this->_getMinimum()) or ($this->_showLabelMinimum)) and (($value < $this->_getMaximum()) or ($this->_showLabelMaximum))) and ($value>= $this->_getMinimum()) and ($value<= $this->_getMaximum())) {
$labelPosition = $this->_point($value);
if (is_object($this->_dataPreProcessor)) {
$labelText = $this->_dataPreProcessor->_process($value);
} else {
$labelText = $value;
}
$doOutput = false;
if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
$text = new Image_Graph_Text($this->_right - 3, $labelPosition, $labelText, $this->_font);
$text->setAlignment(IMAGE_GRAPH_ALIGN_CENTER_Y | IMAGE_GRAPH_ALIGN_RIGHT);
if (($text->_fillBottom() < $lastPosition) or ($lastPosition === false)) {
$lastPosition = $text->_fillTop();
$doOutput = true;
}
} else {
$text = new Image_Graph_Text($labelPosition, $this->_top + 3, $labelText, $this->_font);
$text->setAlignment(IMAGE_GRAPH_ALIGN_CENTER_X | IMAGE_GRAPH_ALIGN_TOP);
if (($text->_fillLeft() > $lastPosition) or ($lastPosition === false)) {
$lastPosition = $text->_fillRight();
$doOutput = true;
}
}
if ($doOutput) {
$this->add($text);
$text->_done();
}
if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
ImageLine($this->_canvas(), $this->_right, $labelPosition, $this->_right + 6, $labelPosition, $this->_getLineStyle());
} else {
ImageLine($this->_canvas(), $labelPosition, $this->_top, $labelPosition, $this->_top - 6, $this->_getLineStyle());
}
}
$nextValue = $this->_getNextLabel($value);
/* if ($minorLabelInterval = $this->_minorLabelInterval()) {
$minorValue = $value + $minorLabelInterval;
while (($minorValue < $nextValue) and ($minorValue < $this->_getMaximum() - $minorLabelInterval)) {
if ($minorValue >= $this->_getMinimum()) {
$position = $this->_point($minorValue);
if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
ImageLine($this->_canvas(), $this->_right, $position, $this->_right + 3, $position, $this->_getLineStyle());
} else {
ImageLine($this->_canvas(), $position, $this->_top, $position, $this->_top - 3, $this->_getLineStyle());
}
}
$minorValue += $minorLabelInterval;
}
}*/
$value = $nextValue;
}
if ($this->_type == IMAGE_GRAPH_AXIS_Y) {
ImageLine($this->_canvas(), $this->_right, $this->_top, $this->_right, $this->_bottom, $this->_getLineStyle());
if ($this->_showArrow) {
$arrow[] = $this->_right - 5;
$arrow[] = $this->_top + 8;
$arrow[] = $this->_right;
$arrow[] = $this->_top;
$arrow[] = $this->_right + 5;
$arrow[] = $this->_top + 8;
ImageFilledPolygon($this->_canvas(), $arrow, count($arrow) / 2, $this->_getFillStyle());
ImagePolygon($this->_canvas(), $arrow, count($arrow) / 2, $this->_getLineStyle());
}
} else {
ImageLine($this->_canvas(), $this->_left, $this->_top, $this->_right, $this->_top, $this->_getLineStyle());
if ($this->_showArrow) {
$arrow[] = $this->_right - 8;
$arrow[] = $this->_top + 5;
$arrow[] = $this->_right;
$arrow[] = $this->_top;
$arrow[] = $this->_right - 8;
$arrow[] = $this->_top - 5;
ImageFilledPolygon($this->_canvas(), $arrow, count($arrow) / 2, $this->_getFillStyle());
ImagePolygon($this->_canvas(), $arrow, count($arrow) / 2, $this->_getLineStyle());
}
}
}