/**
* Render text depending of font type and available font extensions
*
* @param string $id
* @param string $text
* @param string $font
* @param ezcGraphColor $color
* @param ezcGraphCoordinate $position
* @param float $size
* @param float $rotation
* @return void
*/
protected function renderText($text, $font, ezcGraphColor $color, ezcGraphCoordinate $position, $size, $rotation = null)
{
$this->context->selectFontFace($font, CairoFontSlant::NORMAL, CairoFontWeight::NORMAL);
$this->context->setFontSize($size);
// Store current state of context
$this->context->save();
$this->context->moveTo(0, 0);
if ($rotation !== null) {
// Move to the center
$this->context->translate($rotation->getCenter()->x, $rotation->getCenter()->y);
// Rotate around text center
$this->context->rotate(deg2rad($rotation->getRotation()));
// Center the text
$this->context->translate($position->x - $rotation->getCenter()->x, $position->y - $rotation->getCenter()->y - $size * 0.15);
} else {
$this->context->translate($position->x, $position->y - $size * 0.15);
}
$this->context->newPath();
$this->getStyle($color, true);
$this->context->showText($text);
$this->context->stroke();
// Restore state of context
$this->context->restore();
}
<?php
$sur = new CairoImageSurface(CairoFormat::ARGB32, 300, 16);
$con = new CairoContext($sur);
$con->save();
$con->setSourceRgb(1.0, 1.0, 1.0);
/* white */
$con->paint();
$con->restore();
$con->selectFontFace('Bitstream Vera Sans', CairoFontSlant::NORMAL, CairoFontWeight::NORMAL);
$con->setFontSize(12);
$con->setSourceRgb(0, 0, 0);
/* black */
$con->moveTo(0, 12);
$con->showText('Hello from the ');
$con->showText('show-text-current-point-php');
$con->showText(' test.');
$sur->writeToPng(dirname(__FILE__) . '/show-text-current-point.png');
<?php
$sur = new CairoImageSurface(CairoFormat::ARGB32, 10, 10);
$con = new CairoContext($sur);
$con->setSourceRgb(0, 0, 1);
$con->paint();
$con->resetClip();
$con->clip();
$con->translate(0.5, 0.5);
$con->setSourceRgb(0, 1, 0);
$con->rectangle(0, 0, 10, 10);
$con->fillPreserve();
$con->setSourceRgb(1, 0, 0);
$con->stroke();
$con->selectFontFace("Bitstream Vera Sans", CairoFontSlant::NORMAL, CairoFontWeight::NORMAL);
$con->moveTo(0, 10);
$con->showText("cairo");
$sur->writeToPng(dirname(__FILE__) . "/clip-empty-php.png");
$c2->setOperator(CairoOperator::SOURCE);
$c2->paint();
$c2->restore();
$c2->setSourceRgb(1, 1, 1);
$c2->arc(0.5 * $wi, 0.5 * $he, 0.45 * $he, 0, 2 * M_PI);
$c2->fill();
//unset($c2);
$con->maskSurface($msur, $x, $y);
//unset($msur);
//unset($stemp);
break;
case 1:
$con->setFontSize(0.9 * $height);
$ext = $con->textExtents("FG");
$con->moveTo($x + floor(($width - $ext["width"]) / 2 + 0.5) - $ext["x_bearing"], $y + floor(($height - $ext["height"]) / 2 + 0.5) - $ext["y_bearing"]);
$con->showText("FG");
break;
case 2:
$wi = floor($width * 9 / 10);
$he = floor($height * 9 / 10);
$x += 0.05 * $width;
$y += 0.05 * $height;
$con->newPath();
$con->moveTo($x, $y);
$con->lineTo($x, $y + $he);
$con->lineTo($x + $wi / 2, $y + 3 * $he / 4);
$con->lineTo($x + $wi, $y + $he);
$con->lineTo($x + $wi, $y);
$con->lineTo($x + $wi / 2, $y + $he / 4);
$con->closePath();
$con->fill();
<?php
$TEXT_SIZE = 12;
$sur = new CairoImageSurface(CairoFormat::ARGB32, 192, 16);
$con = new CairoContext($sur);
$con->save();
$con->setSourceRgb(1.0, 1.0, 1.0);
/* white */
$con->paint();
$con->restore();
$con->setSourceRgb(0, 0, 0);
/* black */
$con->selectFontFace("Bitstream Vera Serif", CairoFontSlant::NORMAL, CairoFontWeight::NORMAL);
$con->setFontSize($TEXT_SIZE);
$con->moveTo(0, $TEXT_SIZE);
$con->showText("i-am-serif");
$con->selectFontFace("Bitstream Vera Sans", CairoFontSlant::NORMAL, CairoFontWeight::NORMAL);
$con->showText(" i-am-sans");
$con->selectFontFace("Bitstream Vera Sans Mono", CairoFontSlant::NORMAL, CairoFontWeight::NORMAL);
$con->showText(" i-am-mono");
$sur->writeToPng(dirname(__FILE__) . "/select-font-face-php.png");
<?php
$width = 800;
$height = 800;
$sur = new CairoImageSurface(CairoFormat::ARGB32, $width, $height);
$con = new CairoContext($sur);
$con->setSourceRgb(1, 1, 1);
$con->paint();
$con->selectFontFace("Bitstream Vera Sans");
$con->setFontSize(10000);
$con->setSourceRgb(0, 0, 0);
$con->moveTo(-5000, 5000);
$con->showText("xW");
$sur->writeToPng(dirname(__FILE__) . "/large-font-php.png");
$width = 247;
$height = 26;
$sur = new CairoImageSurface(CairoFormat::ARGB32, $width, $height);
$con = new CairoContext($sur);
$con->selectFontFace("6x13.pcf");
$con->setFontSize(11.5);
$fo = new CairoFontOptions();
$fo->setHintMetrics(CairoHintMetrics::METRICS_ON);
$con->setFontOptions($fo);
$fe = $con->fontExtents();
$con->moveTo(1, $fe["ascent"] - 1);
$con->setSourceRgb(0, 0, 1);
$fo->setHintStyle(Cairo::HINT_STYLE_NONE);
$con->setFontOptions($fo);
$con->showText("the ");
$fo->setHintStyle(Cairo::HINT_STYLE_SLIGHT);
$con->setFontOptions($fo);
$con->showText("quick ");
$fo->setHintStyle(Cairo::HINT_STYLE_MEDIUM);
$con->setFontOptions($fo);
$con->showText("brown");
$fo->setHintStyle(Cairo::HINT_STYLE_FULL);
$con->setFontOptions($fo);
$con->showText(" fox");
$con->textPath(" jumps over a lazy dog");
$con->fill();
$con->translate($width, $height);
$con->rotate(M_PI);
$con->moveTo(1, $fe["height"] - $fe["descent"] - 1);
$fo->setHintMetrics(CairoHintMetrics::METRICS_OFF);
<?php
$char = 'Cairo';
$sur = new CairoImageSurface(0, 500, 500);
$con = new CairoContext($sur);
$con->selectFontFace('Sans');
$con->setFontSize(100);
$ext = $con->textExtents($char);
$x = 25.0;
$y = 150.0;
$con->moveTo($x, $y);
$con->showText($char);
$con->setSourceRgba(1, 0.2, 0.2, 0.6);
$con->setLineWidth(6.0);
$con->arc($x, $y, 10, 0, 2 * 3.14);
$con->fill();
$con->moveTo($x, $y);
$con->relLineTo(0, -1 * $ext['height']);
$con->relLineTo($ext['width'], 0);
$con->relLineTo($ext['x_bearing'], -1 * $ext['y_bearing']);
$con->stroke();
$sur->writeToPng(dirname(__FILE__) . '/text-extents.png');
