PHPExcel_Shared_Drawing Class Reference

Collaboration diagram for PHPExcel_Shared_Drawing:

Static Public Member Functions
static	pixelsToEMU ($pValue=0)
	Convert pixels to EMU. More...
static	EMUToPixels ($pValue=0)
	Convert EMU to pixels. More...
static	pixelsToCellDimension ($pValue=0, PHPExcel_Style_Font $pDefaultFont)
	Convert pixels to column width. More...
static	cellDimensionToPixels ($pValue=0, PHPExcel_Style_Font $pDefaultFont)
	Convert column width from (intrinsic) Excel units to pixels. More...
static	pixelsToPoints ($pValue=0)
	Convert pixels to points. More...
static	pointsToPixels ($pValue=0)
	Convert points to pixels. More...
static	degreesToAngle ($pValue=0)
	Convert degrees to angle. More...
static	angleToDegrees ($pValue=0)
	Convert angle to degrees. More...
static	imagecreatefrombmp ($p_sFile)
	Create a new image from file. More...

Detailed Description

Definition at line 36 of file Drawing.php.

Member Function Documentation

angleToDegrees()

static PHPExcel_Shared_Drawing::angleToDegrees (   $pValue = 0 )

static

Convert angle to degrees.

Parameters

int

$pValue

Angle

Returns

int Degrees

Definition at line 164 of file Drawing.php.

Referenced by PHPExcel_Reader_Excel2007\load().

                                                           {
                if ($pValue != 0) {
                        return round($pValue / 60000);
                } else {
                        return 0;
                }
        }

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cellDimensionToPixels()

static PHPExcel_Shared_Drawing::cellDimensionToPixels (   $pValue = 0, PHPExcel_Style_Font  $pDefaultFont  )

static

Convert column width from (intrinsic) Excel units to pixels.

Parameters

float	$pValue	Value in cell dimension
PHPExcel_Style_Font	$pDefaultFont	Default font of the workbook

Returns

int Value in pixels

Definition at line 99 of file Drawing.php.

References PHPExcel_Shared_Font\$defaultColumnWidths, $name, $size, PHPExcel_Style_Font\getName(), and PHPExcel_Style_Font\getSize().

Referenced by PHPExcel_Writer_HTML\buildCSS(), and PHPExcel_Shared_Excel5\sizeCol().

                                                                                                     {
                // Font name and size
                $name = $pDefaultFont->getName();
                $size = $pDefaultFont->getSize();

                if (isset(PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size])) {
                        // Exact width can be determined
                        $colWidth = $pValue
                                * PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size]['px']
                                / PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size]['width'];

                } else {
                        // We don't have data for this particular font and size, use approximation by
                        // extrapolating from Calibri 11
                        $colWidth = $pValue * $size
                                * PHPExcel_Shared_Font::$defaultColumnWidths['Calibri'][11]['px']
                                / PHPExcel_Shared_Font::$defaultColumnWidths['Calibri'][11]['width'] / 11;
                }

                // Round pixels to closest integer
                $colWidth = (int) round($colWidth);

                return $colWidth;
        }

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degreesToAngle()

static PHPExcel_Shared_Drawing::degreesToAngle (   $pValue = 0 )

static

Convert degrees to angle.

Parameters

int

$pValue

Degrees

Returns

int Angle

Definition at line 154 of file Drawing.php.

Referenced by PHPExcel_Writer_Excel2007_Drawing\_writeDrawing().

                                                           {
                return (int)round($pValue * 60000);
        }

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EMUToPixels()

static PHPExcel_Shared_Drawing::EMUToPixels (   $pValue = 0 )

static

Convert EMU to pixels.

Parameters

int

$pValue

Value in EMU

Returns

int Value in pixels

Definition at line 54 of file Drawing.php.

Referenced by PHPExcel_Reader_Excel2007\load().

                                                        {
                if ($pValue != 0) {
                        return round($pValue / 9525);
                } else {
                        return 0;
                }
        }

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imagecreatefrombmp()

static PHPExcel_Shared_Drawing::imagecreatefrombmp (   $p_sFile )

static

Create a new image from file.

By alexander at alexauto dot nl

string $filename Path to Windows DIB (BMP) image resource

Definition at line 179 of file Drawing.php.

References $file, $header, $i, $r, $x, and $y.

Referenced by PHPExcel_Writer_Excel5\_buildWorkbookEscher().

        {
        //    Load the image into a string
        $file    =    fopen($p_sFile,"rb");
        $read    =    fread($file,10);
        while(!feof($file)&&($read<>""))
            $read    .=    fread($file,1024);

        $temp    =    unpack("H*",$read);
        $hex    =    $temp[1];
        $header    =    substr($hex,0,108);

        //    Process the header
        //    Structure: http://www.fastgraph.com/help/bmp_header_format.html
        if (substr($header,0,4)=="424d")
        {
            //    Cut it in parts of 2 bytes
            $header_parts    =    str_split($header,2);

            //    Get the width        4 bytes
            $width            =    hexdec($header_parts[19].$header_parts[18]);

            //    Get the height        4 bytes
            $height            =    hexdec($header_parts[23].$header_parts[22]);

            //    Unset the header params
            unset($header_parts);
        }

        //    Define starting X and Y
        $x                =    0;
        $y                =    1;

        //    Create newimage
        $image            =    imagecreatetruecolor($width,$height);

        //    Grab the body from the image
        $body            =    substr($hex,108);

        //    Calculate if padding at the end-line is needed
        //    Divided by two to keep overview.
        //    1 byte = 2 HEX-chars
        $body_size        =    (strlen($body)/2);
        $header_size    =    ($width*$height);

        //    Use end-line padding? Only when needed
        $usePadding        =    ($body_size>($header_size*3)+4);

        //    Using a for-loop with index-calculation instaid of str_split to avoid large memory consumption
        //    Calculate the next DWORD-position in the body
        for ($i=0;$i<$body_size;$i+=3)
        {
            //    Calculate line-ending and padding
            if ($x>=$width)
            {
                //    If padding needed, ignore image-padding
                //    Shift i to the ending of the current 32-bit-block
                if ($usePadding)
                    $i    +=    $width%4;

                //    Reset horizontal position
                $x    =    0;

                //    Raise the height-position (bottom-up)
                $y++;

                //    Reached the image-height? Break the for-loop
                if ($y>$height)
                    break;
            }

            //    Calculation of the RGB-pixel (defined as BGR in image-data)
            //    Define $i_pos as absolute position in the body
            $i_pos    =    $i*2;
            $r        =    hexdec($body[$i_pos+4].$body[$i_pos+5]);
            $g        =    hexdec($body[$i_pos+2].$body[$i_pos+3]);
            $b        =    hexdec($body[$i_pos].$body[$i_pos+1]);

            //    Calculate and draw the pixel
            $color    =    imagecolorallocate($image,$r,$g,$b);
            imagesetpixel($image,$x,$height-$y,$color);

            //    Raise the horizontal position
            $x++;
        }

        //    Unset the body / free the memory
        unset($body);

        //    Return image-object
        return $image;
        }

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pixelsToCellDimension()

static PHPExcel_Shared_Drawing::pixelsToCellDimension (   $pValue = 0, PHPExcel_Style_Font  $pDefaultFont  )

static

Convert pixels to column width.

Exact algorithm not known. By inspection of a real Excel file using Calibri 11, one finds 1000px ~ 142.85546875 This gives a conversion factor of 7. Also, we assume that pixels and font size are proportional.

Parameters

int	$pValue	Value in pixels
PHPExcel_Style_Font	$pDefaultFont	Default font of the workbook

Returns

int Value in cell dimension

Definition at line 71 of file Drawing.php.

References PHPExcel_Shared_Font\$defaultColumnWidths, $name, $size, PHPExcel_Style_Font\getName(), and PHPExcel_Style_Font\getSize().

Referenced by PHPExcel_Shared_Font\calculateColumnWidth().

                                                                                                     {
                // Font name and size
                $name = $pDefaultFont->getName();
                $size = $pDefaultFont->getSize();

                if (isset(PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size])) {
                        // Exact width can be determined
                        $colWidth = $pValue
                                * PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size]['width']
                                / PHPExcel_Shared_Font::$defaultColumnWidths[$name][$size]['px'];
                } else {
                        // We don't have data for this particular font and size, use approximation by
                        // extrapolating from Calibri 11
                        $colWidth = $pValue * 11
                                * PHPExcel_Shared_Font::$defaultColumnWidths['Calibri'][11]['width']
                                / PHPExcel_Shared_Font::$defaultColumnWidths['Calibri'][11]['px'] / $size;
                }

                return $colWidth;
        }

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pixelsToEMU()

static PHPExcel_Shared_Drawing::pixelsToEMU (   $pValue = 0 )

static

Convert pixels to EMU.

Parameters

int

$pValue

Value in pixels

Returns

int Value in EMU

Definition at line 44 of file Drawing.php.

Referenced by PHPExcel_Writer_Excel2007_Drawing\_writeChart(), and PHPExcel_Writer_Excel2007_Drawing\_writeDrawing().

                                                        {
                return round($pValue * 9525);
        }

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pixelsToPoints()

static PHPExcel_Shared_Drawing::pixelsToPoints (   $pValue = 0 )

static

Convert pixels to points.

Parameters

int

$pValue

Value in pixels

Returns

int Value in points

Definition at line 130 of file Drawing.php.

Referenced by PHPExcel_Writer_HTML\buildCSS().

                                                           {
                return $pValue * 0.67777777;
        }

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pointsToPixels()

static PHPExcel_Shared_Drawing::pointsToPixels (   $pValue = 0 )

static

Convert points to pixels.

Parameters

int

$pValue

Value in points

Returns

int Value in pixels

Definition at line 140 of file Drawing.php.

Referenced by PHPExcel_Shared_Excel5\sizeRow().

                                                           {
                if ($pValue != 0) {
                        return (int) ceil($pValue * 1.333333333);
                } else {
                        return 0;
                }
        }

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The documentation for this class was generated from the following file:

• libs/composer/vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/Drawing.php