Ejemplos de CairoContext::rotate en PHP

Ejemplo n.º 1

Archivo: cairo_oo.php Proyecto: Adeelgill/livehelperchat

 /**
  * 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();
 }

Ejemplo n.º 2

Archivo: rotate-image-surface-paint.php Proyecto: jamesan/cairo

$surface_size = sqrt(($size - 2 * $pad) * ($size - 2 * $pad) / 2);
$sur = new CairoImageSurface(CairoFormat::ARGB32, $size, $size);
$con = new CairoContext($sur);
$s = new CairoImageSurface(CairoFormat::RGB24, $surface_size, $surface_size);
$con2 = new CairoContext($s);
$con2->setSourceRgb(1, 1, 1);
$con2->rectangle(0, 0, $surface_size / 2, $surface_size / 2);
$con2->fill();
$con2->setSourceRgb(1, 0, 0);
$con2->rectangle($surface_size / 2, 0, $surface_size / 2, $surface_size / 2);
$con2->fill();
$con2->setSourceRgb(0, 1, 0);
$con2->rectangle(0, $surface_size / 2, $surface_size / 2, $surface_size / 2);
$con2->fill();
$con2->setSourceRgb(0, 0, 1);
$con2->rectangle($surface_size / 2, $surface_size / 2, $surface_size / 2, $surface_size / 2);
$con2->fill();
/* First paint opaque background (black) so we don't need separate
 * ARGB32 and RGB24 reference images. */
$con->setSourceRgb(0, 0, 0);
/* black */
$con->paint();
$con->translate($size / 2, $size / 2);
$con->rotate(M_PI / 4.0);
$con->translate(-$surface_size / 2, -$surface_size / 2);
$con->setSourceSurface($s, 0, 0);
$pat = $con->getSource();
$pat->setFilter(CairoFilter::NEAREST);
$con->setSource($pat);
$con->paint();
$sur->writeToPng(dirname(__FILE__) . "/rotate-image-surface-paint-php.png");

Ejemplo n.º 3

Archivo: bitmap-font.php Proyecto: jamesan/cairo

$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);
$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");