Subversion Repositories Applications.gtt

<?php
/*
 * This work is hereby released into the Public Domain.
 * To view a copy of the public domain dedication,
 * visit http://creativecommons.org/licenses/publicdomain/ or send a letter to
 * Creative Commons, 559 Nathan Abbott Way, Stanford, California 94305, USA.
 *
 */
 
require_once dirname(__FILE__)."/../Driver.class.php";

/**
 * Draw your objects
 *
 * @package Artichow
 */
class awMingDriver extends awDriver {
        
        /**
         * The Flash movie
         *
         * @var $movie
         */
        public $movie;
        
        public function __construct() {
                
                parent::__construct();
                
                $this->driverString = 'ming';
                
                // Nice defaults
                ming_setScale(20.0);
                ming_useswfversion(6);

        }
        
        /**
         * Initialize the driver for a particular awImage object
         * 
         * @param awImage $image
         */
        public function init(awImage $image) {

                if($this->movie === NULL) {
                        $this->setImageSize($image->width, $image->height);
                        
                        // Create movie
                        $this->movie = new SWFMovie();
                        if(!$this->movie) {
                                awImage::drawError("Class Image: Unable to create a graph.");
                        }
                        
                        $this->movie->setDimension($image->width, $image->height);
                        
                        $this->setAntiAliasing($image->getAntiAliasing());
                        
                        // Original color
                        $this->filledRectangle(
                                new awWhite,
                                new awLine(
                                        new awPoint(0, 0),
                                        new awPoint($this->imageWidth, $this->imageHeight)
                                )
                        );
                        
                        $shadow = $image->shadow;
                        if($shadow !== NULL) {
                                $shadow = $shadow->getSpace();
                                $p1 = new awPoint($shadow->left, $shadow->top);
                                $p2 = new awPoint($this->imageWidth - $shadow->right - 1, $this->imageHeight - $shadow->bottom - 1);
                                
                                // Draw image background
                                $this->filledRectangle($image->getBackground(), new awLine($p1, $p2));
                                
                                // Draw image border
                                $image->border->rectangle($this, $p1, $p2);
                        }
                }
        }
        
        /**
         * Initialize the Driver for a particular FileImage object
         * 
         * @param awFileImage $fileImage The FileImage object to work on
         * @param string $file Image filename
         */
        public function initFromFile(awFileImage $fileImage, $file) {
                
        }
        
        /**
         * Change the image size
         *
         * @param int $width Image width
         * @param int $height Image height
         */
        public function setImageSize($width, $height) {
                $this->imageWidth = $width;
                $this->imageHeight = $height;
        }
        
        /**
         * Inform the driver of the position of your image
         *
         * @param float $x Position on X axis of the center of the component
         * @param float $y Position on Y axis of the center of the component
         */
        public function setPosition($x, $y) {
                // Calculate absolute position
                $this->x = round($x * $this->imageWidth - $this->w / 2);
                $this->y = round($y * $this->imageHeight - $this->h / 2);
        }
        
        /**
         * Inform the driver of the position of your image
         * This method need absolutes values
         * 
         * @param int $x Left-top corner X position
         * @param int $y Left-top corner Y position
         */
        public function setAbsPosition($x, $y) {
                $this->x = $x;
                $this->y = $y;
        }
        
        /**
         * Move the position of the image
         *
         * @param int $x Add this value to X axis
         * @param int $y Add this value to Y axis
         */
        public function movePosition($x, $y) {
                $this->x += (int)$x;
                $this->y += (int)$y;
        }
        
        /**
         * Inform the driver of the size of your image
         * Height and width must be between 0 and 1.
         *
         * @param int $w Image width
         * @param int $h Image height
         * @return array Absolute width and height of the image
         */
        public function setSize($w, $h) {
                
                // Calcul absolute size
                $this->w = round($w * $this->imageWidth);
                $this->h = round($h * $this->imageHeight);
                
                return $this->getSize();
                
        }
        
        /**
         * Inform the driver of the size of your image
         * You can set absolute size with this method.
         *
         * @param int $w Image width
         * @param int $h Image height
         */
        public function setAbsSize($w, $h) {
                $this->w = $w;
                $this->h = $h;
                
                return $this->getSize();
        }
        
        /**
         * Get the size of the component handled by the driver
         *
         * @return array Absolute width and height of the component
         */
        public function getSize() {
                return array($this->w, $this->h);
        }
        
        /**
         * Turn antialiasing on or off
         *
         * @var bool $bool
         */
        public function setAntiAliasing($bool) {
                if($this->movie !== NULL) {

                        $actionscript = '
                        _quality = "%s";
                        ';

                        if((bool)$bool) {
                                $actionscript = sprintf($actionscript, 'high');
                        } else {
                                $actionscript = sprintf($actionscript, 'low');
                        }
                        
                        $this->movie->add(new SWFAction(str_replace("\r", "", $actionscript)));
                }
        }
        
        /**
         * When passed a Color object, returns the corresponding
         * color identifier (driver dependant).
         *
         * @param awColor $color A Color object
         * @return array $rgba A color identifier representing the color composed of the given RGB components
         */
        public function getColor(awColor $color) {
                
                // Ming simply works with R, G, B and Alpha values.
                list($red, $green, $blue, $alpha) = $color->rgba();
                
                // However, the Ming alpha channel ranges from 255 (opaque) to 0 (transparent),
                // while the awColor alpha channel ranges from 0 (opaque) to 100 (transparent).
                // First, we convert from 0-100 to 0-255.
                $alpha = (int)($alpha * 255 / 100);
                
                // Then from 0-255 to 255-0.
                $alpha = abs($alpha - 255);
                
                return array($red, $green, $blue, $alpha);
        }
        
        /**
         * Draw an image here
         *
         * @param awImage $image Image
         * @param int $p1 Image top-left point
         * @param int $p2 Image bottom-right point
         */
        public function copyImage(awImage $image, awPoint $p1, awPoint $p2) {
                
        }
        
        /**
         * Draw an image here
         *
         * @param awImage $image Image
         * @param int $d1 Destination top-left position
         * @param int $d2 Destination bottom-right position
         * @param int $s1 Source top-left position
         * @param int $s2 Source bottom-right position
         * @param bool $resample Resample image ? (default to TRUE)
         */
        public function copyResizeImage(awImage $image, awPoint $d1, awPoint $d2, awPoint $s1, awPoint $s2, $resample = TRUE) {
                
        }
        
        /**
         * Draw a string
         *
         * @var awText $text Text to print
         * @param awPoint $point Draw the text at this point
         * @param int $width Text max width
         */
        public function string(awText $text, awPoint $point, $width = NULL) {
                $font = $text->getFont();
                
                // Can we deal with that font?
                if($this->isCompatibleWithFont($font) === FALSE) {
                        awImage::drawError('Class MingDriver: Incompatible font type (\''.get_class($font).'\')');
                }
                
                // Ming can only work with awFileFont objects for now
                // (i.e. awFDBFont, or awTuffy et al.)
                $fontDriver = $this->fileFontDriver;
                
                if($text->getBackground() !== NULL or $text->border->visible()) {
                
                        list($left, $right, $top, $bottom) = $text->getPadding();

                        $textWidth = $fontDriver->getTextWidth($text, $this);
                        $textHeight = $fontDriver->getTextHeight($text, $this);
                        
                        $x1 = floor($point->x - $left);
                        $y1 = floor($point->y - $top);
                        $x2 = $x1 + $textWidth + $left + $right;
                        $y2 = $y1 + $textHeight + $top + $bottom;
                        
                        $this->filledRectangle(
                                $text->getBackground(),
                                awLine::build($x1, $y1, $x2, $y2)
                        );
                        
                        $text->border->rectangle(
                                $this,
                                new awPoint($x1 - 1, $y1 - 1),
                                new awPoint($x2 + 1, $y2 + 1)
                        );
                        
                }
                
                $fontDriver->string($this, $text, $point, $width);
        }
        
        /**
         * Draw a pixel
         *
         * @param awColor $color Pixel color
         * @param awPoint $p
         */
        public function point(awColor $color, awPoint $p) {
                if($p->isHidden() === FALSE) {
                        list($red, $green, $blue, $alpha) = $this->getColor($color);
                        
                        $point = new SWFShape();
                        $point->setLine(1, $red, $green, $blue, $alpha);
                        $point->movePenTo($this->x + round($p->x), $this->y + round($p->y));
                        $point->drawLine(0.5, 0.5);
                        $point->movePen(-0.5, 0);
                        $point->drawLine(0.5, -0.5);
                        
                        $this->movie->add($point);
                }
        }
        
        /**
         * Draw a colored line
         *
         * @param awColor $color Line color
         * @param awLine $line
         * @param int $thickness Line tickness
         */
        public function line(awColor $color, awLine $line) {
                if($line->getThickness() > 0 and $line->isHidden() === FALSE) {
        
                        list($red, $green, $blue, $alpha) = $this->getColor($color);

                        $mingLine = new SWFShape();
                        $mingLine->setLine($line->getThickness(), $red, $green, $blue, $alpha);

                        list($p1, $p2) = $line->getLocation();
                        
                        $mingLine->movePenTo($this->x + round($p1->x), $this->y + round($p1->y));

                        switch($line->getStyle()) {
                        
                                case awLine::SOLID :
                                        $mingLine->drawLineTo($this->x + round($p2->x), $this->y + round($p2->y));
                                        $this->movie->add($mingLine);
                                        break;
                                        
                                case awLine::DOTTED :
                                        $size = sqrt(pow($p2->y - $p1->y, 2) + pow($p2->x - $p1->x, 2));
                                        $cos = ($p2->x - $p1->x) / $size;
                                        $sin = ($p2->y - $p1->y) / $size;
                                        
                                        for($i = 0; $i <= $size; $i += 2) {
                                                $p = new awPoint(
                                                        round($i * $cos + $p1->x),
                                                        round($i * $sin + $p1->y)
                                                );
                                                $this->point($color, $p);
                                        }
                                        
                                        break;
                                        
                                case awLine::DASHED :
                                        $width = $p2->x - $p1->x;
                                        $height = $p2->y - $p1->y;
                                        $size = sqrt(pow($height, 2) + pow($width, 2));
                                        
                                        if($size == 0) {
                                                return;
                                        }
                                        
                                        $cos = $width / $size;
                                        $sin = $height / $size;
                                        
                                        $functionX = ($width  > 0) ? 'min' : 'max';
                                        $functionY = ($height > 0) ? 'min' : 'max';
                                        
                                        for($i = 0; $i <= $size; $i += 6) {
                                                
                                                $t1 = new awPoint(
                                                        round($i * $cos + $p1->x),
                                                        round($i * $sin + $p1->y)
                                                );
                                                
                                                $t2 = new awPoint(
                                                        round($functionX(($i + 3) * $cos, $width) + $p1->x),
                                                        round($functionY(($i + 3) * $sin, $height) + $p1->y)
                                                );
                                                
                                                $this->line($color, new awLine($t1, $t2));
                                                
                                        }
                                        
                                        break;
                        
                        }
                
                }
        
        }
        
        /**
         * Draw a color arc
         
         * @param awColor $color Arc color
         * @param awPoint $center Point center
         * @param int $width Ellipse width
         * @param int $height Ellipse height
         * @param int $from Start angle
         * @param int $to End angle
         */
        public function arc(awColor $color, awPoint $center, $width, $height, $from, $to) {
                
        }
        
        /**
         * Draw an arc with a background color
         *
         * @param awColor $color Arc background color
         * @param awPoint $center Point center
         * @param int $width Ellipse width
         * @param int $height Ellipse height
         * @param int $from Start angle
         * @param int $to End angle
         */
        public function filledArc(awColor $color, awPoint $center, $width, $height, $from, $to) {
                
        }
        
        /**
         * Draw a colored ellipse
         *
         * @param awColor $color Ellipse color
         * @param awPoint $center Ellipse center
         * @param int $width Ellipse width
         * @param int $height Ellipse height
         */
        public function ellipse(awColor $color, awPoint $center, $width, $height) {
                
        }
        
        /**
         * Draw an ellipse with a background
         *
         * @param mixed $background Background (can be a color or a gradient)
         * @param awPoint $center Ellipse center
         * @param int $width Ellipse width
         * @param int $height Ellipse height
         */
        public function filledEllipse($background, awPoint $center, $width, $height) {
                
        }
        
        /**
         * Draw a colored rectangle
         *
         * @param awColor $color Rectangle color
         * @param awLine $line Rectangle diagonale
         * @param awPoint $p2
         */
        public function rectangle(awColor $color, awLine $line) {
                list($p1, $p2) = $line->getLocation();
                
                // Get Red, Green, Blue and Alpha values for the line
                list($r, $g, $b, $a) = $this->getColor($color);
                
                // Calculate the coordinates of the two other points of the rectangle
                $p3 = new Point($p1->x, $p2->y);
                $p4 = new Point($p2->x, $p1->y);
                
                
                $side = clone $line;
                
                
                                
                // Draw the four sides of the rectangle, clockwise
                if(
                        ($p1->x <= $p2->x and $p1->y <= $p2->y)
                        or
                        ($p1->x >= $p2->x and $p1->y >= $p2->y)
                ) {
                        $side->setLocation($p1, $p4);
                        $this->line($color, $side);
                        
                        $side->setLocation($p4, $p2);
                        $this->line($color, $side);
                        
                        $side->setLocation($p2, $p3);
                        $this->line($color, $side);
                        
                        $side->setLocation($p3, $p1);
                        $this->line($color, $side);
                } else {
                        $side->setLocation($p1, $p3);
                        $this->line($color, $side);
                        
                        $side->setLocation($p3, $p2);
                        $this->line($color, $side);
                        
                        $side->setLocation($p2, $p4);
                        $this->line($color, $side);
                        
                        $side->setLocation($p4, $p1);
                        $this->line($color, $side);
                }
        }
        
        /**
         * Draw a rectangle with a background
         *
         * @param mixed $background Background (can be a color or a gradient)
         * @param awLine $line Rectangle diagonale
         */
        public function filledRectangle($background, awLine $line) {
                list($p1, $p2) = $line->getLocation();
                
                // Common shape settings
                $shape = new SWFShape();
                $shape->setLine(0);
                
                if($background instanceof awColor) {
                        
                        // Get the Red, Green, Blue and Alpha values
                        list($r, $g, $b, $a) = $this->getColor($background);
                        $shape->setRightFill($r, $g, $b, $a);
                        
                } else if($background instanceof awGradient) {
                        
                        // Get the Gradient object as an SWFGradient one
                        list($flashGradient, $style) = $this->getGradient($background);
                        
                        $fill = $shape->addFill($flashGradient, $style);
                        
                        // Angles between Artichow and Ming don't match.
                        // Don't use abs() or vertical gradients get inverted.
                        $angle = $background->angle - 90;
                        $fill->rotateTo($angle);
                        
                        // Move the gradient based on the position of the rectangle we're drawing
                        $centerX = min($p1->x, $p2->y) + abs($p1->x - $p2->x) / 2;
                        $centerY = min($p1->y, $p2->y) + abs($p1->y - $p2->y) / 2;
                        $fill->moveTo($centerX, $centerY);
                        
                        // Ming draws its gradients on a 1600x1600 image,
                        // so we have to resize it.
                        if($angle === -90) {
                                $ratio = abs($p1->y - $p2->y) / 1600;
                        } else {
                                $ratio = abs($p1->x - $p2->x) / 1600;
                        }
                        $fill->scaleTo($ratio);
                        
                        $shape->setRightFill($fill);
                        
                }
                
                // Set starting position
                $shape->movePenTo($this->x + round($p1->x), $this->y + round($p1->y));
                
                // Depending on the points' relative positions,
                // we have two drawing possibilities
                if(
                        ($p1->x <= $p2->x and $p1->y <= $p2->y)
                        or
                        ($p1->x >= $p2->x and $p1->y >= $p2->y)
                ) {
                        $shape->drawLineTo($this->x + round($p2->x), $this->y + round($p1->y));
                        $shape->drawLineTo($this->x + round($p2->x), $this->y + round($p2->y));
                        $shape->drawLineTo($this->x + round($p1->x), $this->y + round($p2->y));
                        $shape->drawLineTo($this->x + round($p1->x), $this->y + round($p1->y));
                } else {
                        $shape->drawLineTo($this->x + round($p1->x), $this->y + round($p2->y));
                        $shape->drawLineTo($this->x + round($p2->x), $this->y + round($p2->y));
                        $shape->drawLineTo($this->x + round($p2->x), $this->y + round($p1->y));
                        $shape->drawLineTo($this->x + round($p1->x), $this->y + round($p1->y));
                }
                
                $this->movie->add($shape);
        }
        
        /**
         * Draw a polygon
         *
         * @param awColor $color Polygon color
         * @param Polygon A polygon
         */
        public function polygon(awColor $color, awPolygon $polygon) {
                $points = $polygon->all();
                $count = count($points);
                
                if($count > 1) {
                        
                        $side = new awLine;
                        $side->setStyle($polygon->getStyle());
                        $side->setThickness($polygon->getThickness());
                        
                        $prev = $points[0];
                        
                        for($i = 1; $i < $count; $i++) {
                                $current = $points[$i];
                                $side->setLocation($prev, $current);
                                $this->line($color, $side);
                                $prev = $current;
                        }
                        
                        // Close the polygon
                        $side->setLocation($prev, $points[0]);
                        $this->line($color, $side);
                }
        }
        
        /**
         * Draw a polygon with a background
         *
         * @param mixed $background Background (can be a color or a gradient)
         * @param Polygon A polygon
         */
        public function filledPolygon($background, awPolygon $polygon) {
                $shape = new SWFShape();
                
                if($background instanceof awColor) {
                        list($red, $green, $blue, $alpha) = $this->getColor($background);
                        
                        $shape->setRightFill($red, $green, $blue, $alpha);
                } elseif($background instanceof awGradient) {
                        list($flashGradient, $style) = $this->getGradient($background);
                        
                        $fill = $shape->addFill($flashGradient, $style);
                        
                        list($xMin, $xMax) = $polygon->getBoxXRange();
                        list($yMin, $yMax) = $polygon->getBoxYRange();
                        
                        if($background->angle === 0) {
                                $fill->scaleTo(($yMax - $yMin) / 1600);
                        } else {
                                $fill->scaleTo(($xMax - $xMin) / 1600);
                        }
                        $fill->moveTo($xMin + ($xMax - $xMin) / 2, $yMin + ($yMax - $yMin) / 2);
                        
                        $shape->setRightFill($fill);
                }
                
                $points = $polygon->all();
                $count = count($points);
                
                if($count > 1) {
                        
                        $prev = $points[0];
                        
                        $shape->movePenTo($prev->x, $prev->y);
                        
                        for($i = 1; $i < $count; $i++) {
                                $current = $points[$i];
                                $shape->drawLineTo($current->x, $current->y);
                        }
                        
                        // Close the polygon
                        $shape->drawLineTo($prev->x, $prev->y);
                        
                        $this->movie->add($shape);
                        
                }
        }

        /**
         * Sends the image, as well as the correct HTTP headers, to the browser
         *
         * @param awImage $image The Image object to send
         */
        public function send(awImage $image) {
                $this->drawImage($image);
        }
        
        /**
         * Get the image as binary data
         *
         * @param awImage $image
         */
        public function get(awImage $image) {
                return $this->drawImage($image, TRUE, FALSE);
        }
        
        public function getTextWidth(awText $text) {
                $font = $text->getFont();
                if($this->isCompatibleWithFont($font) === FALSE) {
                        awImage::drawError('Class MingDriver: Incompatible font type (\''.get_class($font).'\')');
                }
                
                // Ming only supports FileFont
                $fontDriver = $this->fileFontDriver;
                                
                return $fontDriver->getTextWidth($text, $this);
        }
        
        public function getTextHeight(awText $text) {
                $font = $text->getFont();
                if($this->isCompatibleWithFont($font) === FALSE) {
                        awImage::drawError('Class MingDriver: Incompatible font type (\''.get_class($font).'\')');
                }
                
                // Ming only supports FileFont
                $fontDriver = $this->fileFontDriver;
                
                return $fontDriver->getTextHeight($text, $this);
        }
        
        protected function isCompatibleWithFont(awFont $font) {
                if($font instanceof awTTFFont or $font instanceof awPHPFont) {
                        return FALSE;
                } else {
                        return TRUE;
                }
        }
        
        private function drawImage(awImage $image, $return = FALSE, $header = TRUE) {
                
                // Send headers to the browser
                if($header === TRUE) {
                        $image->sendHeaders();
                }
                
                if($return) {
                        ob_start();
                }
                
                $this->movie->output();
                
                if($return) {
                        return ob_get_clean();
                }
        }

        /**
         * Convert an awGradient object to an SWFGradient one.
         * Returns an object as well as the style of the Flash gradient.
         *
         * @param awGradient $gradient The awGradient object to convert
         * @return array
         */
        private function getGradient(awGradient $gradient) {
                $flashGradient = new SWFGradient();
                
                // Get RGBA values for the gradient boundaries
                list($r1, $g1, $b1, $a1) = $this->getColor($gradient->from);
                list($r2, $g2, $b2, $a2) = $this->getColor($gradient->to);
                
                $flashGradient->addEntry(0, $r1, $g1, $b1, $a1);
                
                if($gradient instanceof awBilinearGradient) {
                        
                        $flashGradient->addEntry($gradient->center, $r2, $g2, $b2, $a2);
                        $flashGradient->addEntry(1, $r1, $g1, $b1, $a1);
                        
                        return array($flashGradient, SWFFILL_LINEAR_GRADIENT);
                } else {

                        $flashGradient->addEntry(1, $r2, $g2, $b2, $a2);
                        
                        if($gradient instanceof awLinearGradient) {
                                return array($flashGradient, SWFFILL_LINEAR_GRADIENT);
                        } else {
                                return array($flashGradient, SWFFILL_RADIAL_GRADIENT);
                        }
                }
        }
//      abstract private function getPolygonPoints(awPolygon $polygon);

}

registerClass('MingDriver');

/*
 * Check for ming presence
 */
if(function_exists('ming_useswfversion') === FALSE) {
        awImage::drawErrorFile('missing-ming');
}

?>