/**
* テキストを合成
*
* <pre>
* 指定位置にテキストを追加します。$alignに右寄せ（_BEAR_ALIGN_RIGHT)を指定
* すると$xは右からのスペースになります。fontはターミナルでfc-listで得られるフ
* ォントの名前を使用します。イタリックは$slantにCAIRO_FONT_SLANT_ITALIC,
* ボールドは$weightにCAIRO_FONT_WEIGHT_BOLDを指定します。
* </pre>
*
* @param string $text テキスト
* @param int $x X座標
* @param int $y Y座標
* @param int $size フォントサイズ
* @param int $align BEAR_Img::LEFT | BEAR_Img::CENTER | BEAR_Img::RIGHT
* @param array $colorOne 内側カラー array($r, $g, $b)
* @param array $colorTwo アウトラインカラー array($r, $g, $b)
* @param string $font フォント
* @param float $textAlpha アルファブレンディング(0..1)
* @param float $lineWidth ラインの幅
* @param int $slant CAIRO_FONT_SLANT_NORMAL | CAIRO_FONT_SLANT_ITALIC
* @param int $weight CAIRO_FONT_WEIGHT_NORMAL | CAIRO_FONT_WEIGHT_BOLD
*
* @return void
*/
public function addText($text, $x = 0, $y = 0, $size = 120, $align = BEAR_Img::LEFT, $colorOne = false, $colorTwo = false, $font = 'Arial', $textAlpha = 0.85, $lineWidth = 0.75, $slant = CAIRO_FONT_SLANT_NORMAL, $weight = CAIRO_FONT_WEIGHT_NORMAL)
{
//フォントカラー
cairo_set_source_rgb($this->image, 0.0, 0.0, 1.0);
cairo_select_font_face($this->image, $font, $slant, $weight);
cairo_set_font_size($this->image, $size);
$this->_fontInfo = cairo_text_extents($this->image, $text);
$this->_log->log('cairo _fontInfo', $this->_fontInfo);
switch ($align) {
case BEAR_Img::CENTER:
$x = $this->_srcWidth / 2 - $this->_fontInfo['x_advance'] / 2 + $x;
break;
case BEAR_Img::RIGHT:
$x = $this->_srcWidth - $this->_fontInfo['x_advance'] - $x;
break;
case BEAR_Img::LEFT:
default:
break;
}
cairo_move_to($this->image, $x, $y + $size);
cairo_text_path($this->image, $text);
//テキスト中身
if ($colorOne) {
$colorOneZero = $colorOne[0] / 255;
$colorOneOne = $colorOne[1] / 255;
$colorOneTwo = $colorOne[2] / 255;
cairo_set_source_rgba($this->image, $colorOneZero, $colorOneOne, $colorOneTwo, $textAlpha);
} else {
cairo_set_source_rgba($this->image, 1, 1, 1, $textAlpha);
}
cairo_fill_preserve($this->image);
//テキストボーダー
if ($colorTwo) {
$colorTwoZero = $colorTwo[0] / 255;
$colorTwoOne = $colorTwo[1] / 255;
$colorTwoTwo = $colorTwo[2] / 255;
cairo_set_source_rgba($this->image, $colorTwoZero, $colorTwoOne, $colorTwoTwo, $textAlpha);
} else {
cairo_set_source_rgba($this->image, 0, 0, 1, $textAlpha);
}
cairo_set_line_width($this->image, $lineWidth);
//cairo_stroke_preserve($this->image);
cairo_stroke($this->image);
//cairo_show_page($this->image);
}
/**
* Draws a circular arc consisting of several minor steps on the bounding
* lines.
*
* @param ezcGraphCoordinate $center
* @param mixed $width
* @param mixed $height
* @param mixed $size
* @param mixed $startAngle
* @param mixed $endAngle
* @param ezcGraphColor $color
* @param bool $filled
* @return string Element id
*/
protected function simulateCircularArc(ezcGraphCoordinate $center, $width, $height, $size, $startAngle, $endAngle, ezcGraphColor $color, $filled)
{
for ($tmpAngle = min(ceil($startAngle / 180) * 180, $endAngle); $tmpAngle <= $endAngle; $tmpAngle = min(ceil($startAngle / 180 + 1) * 180, $endAngle)) {
$path = cairo_new_path($this->context);
cairo_move_to($this->context, $center->x + cos(deg2rad($startAngle)) * $width / 2, $center->y + sin(deg2rad($startAngle)) * $height / 2);
// @TODO: Use cairo_curve_to()
for ($angle = $startAngle; $angle <= $tmpAngle; $angle = min($angle + $this->options->circleResolution, $tmpAngle)) {
cairo_line_to($this->context, $center->x + cos(deg2rad($angle)) * $width / 2, $center->y + sin(deg2rad($angle)) * $height / 2 + $size);
if ($angle === $tmpAngle) {
break;
}
}
for ($angle = $tmpAngle; $angle >= $startAngle; $angle = max($angle - $this->options->circleResolution, $startAngle)) {
cairo_line_to($this->context, $center->x + cos(deg2rad($angle)) * $width / 2, $center->y + sin(deg2rad($angle)) * $height / 2);
if ($angle === $startAngle) {
break;
}
}
cairo_close_path($this->context);
$this->getStyle($color, $filled);
cairo_stroke($this->context);
$startAngle = $tmpAngle;
if ($tmpAngle === $endAngle) {
break;
}
}
}
