PHP CairoSurfacePattern Beispiele

Beispiel #1

Datei: cairo_oo.php Projekt: Adeelgill/livehelperchat

 /**
  * Draw an image 
  *
  * The image will be inlined in the SVG document using data URL scheme. For
  * this the mime type and base64 encoded file content will be merged to 
  * URL.
  * 
  * @param mixed $file Image file
  * @param ezcGraphCoordinate $position Top left position
  * @param mixed $width Width of image in destination image
  * @param mixed $height Height of image in destination image
  * @return void
  */
 public function drawImage($file, ezcGraphCoordinate $position, $width, $height)
 {
     $this->initiliazeSurface();
     // Ensure given bitmap is a PNG image
     $data = getimagesize($file);
     if ($data[2] !== IMAGETYPE_PNG) {
         throw new Exception('Cairo only has support for PNGs.');
     }
     // Create new surface from given bitmap
     $imageSurface = CairoImageSurface::createFromPng($file);
     // Create pattern from source image to be able to transform it
     $pattern = new CairoSurfacePattern($imageSurface);
     // Scale pattern to defined dimensions and move it to its destination position
     $matrix = CairoMatrix::multiply($move = CairoMatrix::initTranslate(-$position->x, -$position->y), $scale = CairoMatrix::initScale($data[0] / $width, $data[1] / $height));
     $pattern->setMatrix($matrix);
     // Merge surfaces
     $this->context->setSource($pattern);
     $this->context->rectangle($position->x, $position->y, $width, $height);
     $this->context->fill();
 }

Beispiel #2

Datei: set-source.php Projekt: jamesan/cairo

<?php

$sur = new CairoImageSurface(CairoFormat::ARGB32, 5, 5);
$con = new CairoContext($sur);
$color = '';
$color .= chr(0x4c);
$color .= chr(0x33);
$color .= chr(0x19);
$color .= chr(0x80);
$s = new CairoImageSurface(CairoFormat::ARGB32, 1, 1);
$s->createForData($color, CairoFormat::ARGB32, 1, 1, 4);
$pat = new CairoSurfacePattern($s);
$pat->setExtend(CairoExtend::REPEAT);
for ($i = 0; $i < 5; $i++) {
    switch ($i) {
        case 0:
            $con->setSourceRgb(0.6, 0.7, 0.8);
            break;
        case 1:
            $con->setSourceRgba(0.2, 0.4, 0.6, 0.5);
            break;
        case 2:
            $con->setSourceRgba(0.2, 0.4, 0.6, 0.5);
            break;
        case 3:
        default:
            $con->setSource($pat);
    }
    $con->rectangle($i, 0, 1, 5);
    $con->fill();
}

Beispiel #3

Datei: meta-surface-pattern.php Projekt: jamesan/cairo

$cr2->lineTo(0, 5 * $patheight / 6.0);
$cr2->setSourceRgb(0, 1, 0);
$cr2->stroke();
$cr2->moveTo(5 * $patwidth / 6.0, 0);
$cr2->lineTo($patwidth, 0);
$cr2->lineTo($patwidth, $patheight / 6.0);
$cr2->setSourceRgb(0, 0, 1);
$cr2->stroke();
$cr2->moveTo(5 * $patwidth / 6.0, $patheight);
$cr2->lineTo($patwidth, $patheight);
$cr2->lineTo($patwidth, 5 * $patheight / 6.0);
$cr2->setSourceRgb(1, 1, 0);
$cr2->stroke();
$cr2->setSourceRgb(0.5, 0.5, 0.5);
$cr2->setLineWidth($patwidth / 10.0);
$cr2->moveTo(0, $patheight / 4.0);
$cr2->lineTo($patwidth, $patheight / 4.0);
$cr2->stroke();
$cr2->moveTo($patwidth / 4.0, 0);
$cr2->lineTo($patwidth / 4.0, $patwidth);
$cr2->stroke();
$pattern = new CairoSurfacePattern($pat_surface);
$mat = new CairoMatrix();
$mat->scale(2, 1.5);
$mat->rotate(1);
$mat->translate(-$patwidth / 4.0, -$patwidth / 2.0);
$pattern->setMatrix($mat);
$pattern->setExtend(CairoExtend::NONE);
$con->setSource($pattern);
$con->paint();
$sur->writeToPng(dirname(__FILE__) . "/meta-surface-pattern-php.png");

Beispiel #4

Datei: self-copy.php Projekt: jamesan/cairo

<?php

$size = 40;
$sur = new CairoImageSurface(CairoFormat::ARGB32, $size, $size);
$con = new CairoContext($sur);
$con->setSourceRgb(1, 1, 1);
/* White */
$con->paint();
$con->moveTo($size, 0);
$con->lineTo($size, $size);
$con->lineTo(0, $size);
$con->setSourceRgb(0, 0, 0);
$con->fill();
/* Create a pattern with the target surface as the source,
 * offset by $size/2 */
$pattern = new CairoSurfacePattern($sur);
$matrix = new CairoMatrix();
$matrix->translate(-$size / 2, -$size / 2);
$pattern->setMatrix($matrix);
$con->setSource($pattern);
/* Copy two rectangles from the upper-left quarter of the image to
 * the lower right.  It will work if we use $con->fill(), but the
 * $con->clip() $con->paint() combination fails because the clip
 * on the surface as a destination affects it as the source as
 * well.
 */
$con->rectangle(2 * $size / 4, 2 * $size / 4, $size / 4, $size / 4);
$con->rectangle(3 * $size / 4, 3 * $size / 4, $size / 4, $size / 4);
$con->clip();
$con->paint();
$sur->writeToPng(dirname(__FILE__) . '/self-copy.png');