/**
* Draw the data point text on the graph
*
* @param array $dataPoints
* @param array $xAxis
* @param array $yAxis
* @param string $type
* @param array $points
* @param int $skip
* @return void
*/
protected function drawDataText($dataPoints, $xAxis, $yAxis, $type, $points = null, $skip = 1)
{
$font = $this->graph->getFont();
$fontSize = $this->graph->getFontSize();
$fontColor = $this->graph->getFontColor();
$reverseFontColor = $this->graph->getReverseFontColor();
$fillColor = $this->graph->getFillColor();
switch ($type) {
// Draw data point text on a line graph.
case 'line':
$this->graph->adapter()->setFillColor($fontColor);
$prevY = null;
$nextY = null;
$start = $skip;
for ($i = $start; $i < count($dataPoints); $i++) {
$strSize = strlen($dataPoints[$i][0]) * $fontSize / 8;
$x = ($dataPoints[$i][0] - $dataPoints[0][0]) / $points->xRange * $points->xLength + $points->zeroPoint['x'] - $strSize;
$y = $points->yOffset - ($dataPoints[$i][1] - $dataPoints[0][1]) / $points->yRange * $points->yLength;
if ($i < count($dataPoints) - 1) {
if (null !== $prevY) {
$nextY = $points->yOffset - ($dataPoints[$i + 1][1] - $dataPoints[0][1]) / $points->yRange * $points->yLength;
}
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
if (null !== $prevY && $y < $nextY && $y < $prevY) {
$y -= $fontSize * 2;
if (null !== $fillColor) {
$revColor = null !== $reverseFontColor ? $reverseFontColor : new \Pop\Color\Space\Rgb(255, 255, 255);
$this->graph->adapter()->setFillColor($revColor);
}
} else {
if (null !== $prevY && $y < $nextY && $y > $prevY || null === $prevY && $y > $nextY) {
$x -= $strSize * 2;
} else {
if (null !== $prevY && $y > $nextY && $y < $prevY || null === $prevY && $y < $nextY) {
$x += $strSize * 2;
}
}
}
} else {
if (null !== $prevY && $y > $nextY && $y > $prevY) {
$y += $fontSize * 2;
if (null !== $fillColor) {
$revColor = null !== $reverseFontColor ? $reverseFontColor : new \Pop\Color\Space\Rgb(255, 255, 255);
$this->graph->adapter()->setFillColor($revColor);
}
} else {
if (null !== $prevY && $y > $nextY && $y < $prevY || null === $prevY && $y > $nextY) {
$x -= $strSize * 2;
} else {
if (null !== $prevY && $y < $nextY && $y > $prevY || null === $prevY && $y < $nextY) {
$x += $strSize * 2;
}
}
}
}
}
if (null !== $font) {
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
$this->graph->adapter()->addText($x, $y + $fontSize / 2, $fontSize, $dataPoints[$i][1], $this->graph->getFonts($this->graph->getFont()));
} else {
$this->graph->adapter()->text($dataPoints[$i][1], $fontSize, $x, $y - $fontSize / 2, $this->graph->getFonts($this->graph->getFont()));
}
} else {
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
$this->graph->adapter()->addFont('Arial');
$this->graph->adapter()->addText($x, $y + $fontSize / 2, $fontSize, $dataPoints[$i][1], 'Arial');
} else {
$this->graph->adapter()->text($dataPoints[$i][1], $fontSize, $x, $y - $fontSize / 2);
}
}
$prevY = $y;
$this->graph->adapter()->setFillColor($fontColor);
}
break;
// Draw data point text on a vertical bar graph.
// Draw data point text on a vertical bar graph.
case 'vBar':
$this->graph->adapter()->setFillColor($fontColor);
$realXDiv = ($points->xLength - $this->graph->getBarWidth() * 2) / (count($xAxis) - 1);
for ($i = 0; $i < count($dataPoints); $i++) {
$strSize = strlen($dataPoints[$i]) * $fontSize / 4;
$x = $realXDiv * ($i + 1) - $this->graph->getBarWidth() / 1.75 + $this->graph->getBarWidth() / 2 - $strSize;
$y = $points->yOffset - $dataPoints[$i] / $points->yRange * $points->yLength;
if (null !== $font) {
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
$this->graph->adapter()->addText($x, $y + $fontSize / 2, $fontSize, $dataPoints[$i], $this->graph->getFonts($this->graph->getFont()), $fontSize);
} else {
$this->graph->adapter()->text($dataPoints[$i], $fontSize, $x, $y - $fontSize / 2, $this->graph->getFonts($this->graph->getFont()));
}
} else {
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
$this->graph->adapter()->addFont('Arial');
$this->graph->adapter()->addText($x, $y + $fontSize / 2, $fontSize, $dataPoints[$i], 'Arial');
} else {
$this->graph->adapter()->text($dataPoints[$i], $fontSize, $x, $y - $fontSize / 2);
}
}
}
break;
// Draw data point text on a horizontal bar graph.
// Draw data point text on a horizontal bar graph.
case 'hBar':
$this->graph->adapter()->setFillColor($fontColor);
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
$realYDiv = ($points->yLength + $this->graph->getBarWidth() * 2) / (count($yAxis) - 1);
} else {
$realYDiv = ($points->yLength - $this->graph->getBarWidth() * 2) / (count($yAxis) - 1);
}
$len = count($dataPoints);
for ($i = 0; $i < $len; $i++) {
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
$y = $points->zeroPoint['y'] - $realYDiv * $i + $this->graph->getBarWidth() / 5 + $this->graph->getBarWidth() / 2 - $fontSize / 2;
} else {
$y = $points->yLength - $realYDiv * ($i + 1) + $this->graph->getBarWidth() * 1.1 + $this->graph->getBarWidth() / 2 + $fontSize / 2;
}
$x = $dataPoints[$i] / $points->xRange * $points->xLength + $points->zeroPoint['x'] + $fontSize / 2;
if (null !== $font) {
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
$this->graph->adapter()->addText($x, $y + $fontSize / 2, $fontSize, $dataPoints[$i], $this->graph->getFonts($this->graph->getFont()));
} else {
$this->graph->adapter()->text($dataPoints[$i], $fontSize, $x, $y - $fontSize / 2, $this->graph->getFonts($this->graph->getFont()));
}
} else {
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
$this->graph->adapter()->addFont('Arial');
$this->graph->adapter()->addText($x, $y + $fontSize / 2, $fontSize, $dataPoints[$i], 'Arial');
} else {
$this->graph->adapter()->text($dataPoints[$i], $fontSize, $x, $y - $fontSize / 2);
}
}
}
break;
// Draw data point text on a pie chart.
// Draw data point text on a pie chart.
case 'pie':
for ($i = 0; $i < count($dataPoints); $i++) {
$newMidX = $xAxis[$i]['x'];
$newMidY = $xAxis[$i]['y'];
$this->graph->adapter()->setFillColor($fontColor);
if ($this->graph->adapter() instanceof \Pop\Pdf\Pdf) {
// Text not supported on PDF pie charts yet due to clipping path issues.
} else {
switch ($yAxis[$i]) {
case 1:
$textX = $newMidX + $fontSize * 1.5;
$textY = $newMidY + $fontSize * 1.5;
break;
case 2:
$textX = $newMidX - $fontSize * 1.5;
$textY = $newMidY + $fontSize * 1.5;
break;
case 3:
$textX = $newMidX - $fontSize * 1.5;
$textY = $newMidY - $fontSize * 1.5;
break;
case 4:
$textX = $newMidX + $fontSize * 1.5;
$textY = $newMidY - $fontSize * 1.5;
break;
}
$this->graph->adapter()->text($dataPoints[$i][0] . '%', $fontSize, $textX, $textY, $this->graph->getFonts($this->graph->getFont()));
}
$this->graph->adapter()->setFillColor($dataPoints[$i][1]);
}
break;
}
}
public function testSetBarWidth()
{
$g = new Graph($this->imageOptions);
$g->setBarWidth(5);
$this->assertEquals(5, $g->getBarWidth());
}