fpdf.php

来自「php绿色服务器,让大家试用greenamp」· PHP 代码 · 共 2,044 行 · 第 1/5 页

                $pal = fread($f, $n);
                fread($f, 4);
            }
            else if ($type == 'tRNS') {
                // Reads transparency info
                $t            = fread($f, $n);
                if ($ct == 0) {
                    $trns     = array(ord(substr($t, 1, 1)));
                }
                else if ($ct == 2) {
                    $trns     = array(ord(substr($t, 1, 1)), ord(substr($t, 3, 1)), ord(substr($t, 5, 1)));
                }
                else {
                    $pos      = strpos(' ' . $t, chr(0));
                    if ($pos) {
                        $trns = array($pos - 1);
                    }
                    fread($f,4);
                } // end if... else if... else
            }
            else if ($type == 'IDAT') {
                // Reads image data block
                $data .= fread($f, $n);
                fread($f, 4);
            }
            else if ($type == 'IEND') {
                break;
            }
            else {
                fread($f, $n + 4);
            } // end if... else if... else
        } while ($n); // end do

        if ($colspace == 'Indexed' && empty($pal)) {
            $this->Error('Missing palette in ' . $file);
        }
        fclose($f);

        return array('w'     => $w,
                     'h'     => $h,
                     'cs'    => $colspace,
                     'bpc'   => $bpc,
                     'f'     => 'FlateDecode',
                     'parms' => $parms,
                     'pal'   => $pal,
                     'trns'  => $trns,
                     'data'  => $data);
    } // end of the "_parsepng()" method



    /**************************************************************************
    *                                                                         *
    *                             Public methods                              *
    *                                                                         *
    **************************************************************************/

    /**
     * Sets auto page break mode and triggering margin
     *
     * @param  string  The auto page break mode
     * @param  double  Maximum size till the bottom of the page to start adding
     *                 page break
     *
     * @access public
     */
    function SetAutoPageBreak($auto, $margin = 0)
    {
        $this->AutoPageBreak    = $auto;
        $this->bMargin          = $margin;
        $this->PageBreakTrigger = $this->h - $margin;
    } // end of the "SetAutoPageBreak()" method


    /**
     * Sets display mode in viewer
     *
     * @param  mixed   The zoom mode (fullpage, fullwidth, real, default,
     *                 zoom or an zoom factor -real-)
     * @param  string  The layout mode (single, continuous, two or default)
     *
     * @access public
     */
    function SetDisplayMode($zoom = 'default', $layout = 'continuous')
    {
        if (is_string($zoom)) {
            $zoom = strtolower($zoom);
        }
        $layout   = strtolower($layout);

        // Zoom mode
        if ($zoom == 'fullpage' || $zoom == 'fullwidth' || $zoom == 'real' || $zoom == 'default'
            || !is_string($zoom)) {
            $this->ZoomMode = $zoom;
        } else if ($zoom == 'zoom') {
            $this->ZoomMode = $layout;
        } else {
            $this->Error('Incorrect zoom display mode: ' . $zoom);
        } // end if... else if... else...

        // Layout mode
        if ($layout == 'single' || $layout == 'continuous' || $layout=='two' || $layout=='default') {
            $this->LayoutMode = $layout;
        } else if ($zoom != 'zoom') {
            $this->Error('Incorrect layout display mode: ' . $layout);
        } // end if... else if...
    } // end of the "SetDisplayMode()" method


    /**
     * Sets page compression
     *
     * @param  boolean  whether to compress file or not
     *
     * @access public
     */
    function SetCompression($compress)
    {
        if (function_exists('gzcompress')) {
            $this->compress = $compress;
        } else {
            $this->compress = FALSE;
        } // end if... else...
    } // end of the "SetCompression()" method


    /**
     * Sets page margins
     *
     * @param  double  The left margin
     * @param  double  The top margin
     * @param  double  The right margin
     *
     * @access public
     */
    function SetMargins($left, $top, $right = -1)
    {
        $this->lMargin = $left;
        $this->tMargin = $top;
        if ($right == -1) {
            $right = $left;
        }
        $this->rMargin = $right;
    } // end of the "SetMargins()" method


    /**
     * The FPDF constructor
     *
     * @param  string  The page orientation (p, portrait, l or landscape)
     * @param  string  The unit for sizes (pt, mm, cm or in)
     * @param  mixed   The page format (A3, A4, A5, letter, legal or an array
     *                 with page sizes)
     *
     * @access public
     */
    function FPDF($orientation = 'P', $unit = 'mm', $format = 'A4')
    {
        // Check for PHP locale-related bug
        if (1.1 == 1) {
            $this->Error('Don\'t call setlocale() before including class file');
        }

        // Initialization of properties
        $this->page               = 0;
        $this->n                  = 2;
        $this->buffer             = '';
        $this->pages              = array();
        $this->OrientationChanges = array();
        $this->state              = 0;
        $this->fonts              = array();
        $this->FontFiles          = array();
        $this->diffs              = array();
        $this->images             = array();
        $this->links              = array();
        $this->InFooter           = FALSE;
        $this->FontFamily         = '';
        $this->FontStyle          = '';
        $this->FontSizePt         = 12;
        $this->underline          = FALSE;
        $this->DrawColor          = '0 G';
        $this->FillColor          = '0 g';
        $this->TextColor          = '0 g';
        $this->ColorFlag          = FALSE;
        $this->ws                 = 0;

        // Standard fonts
        $this->CoreFonts['courier']      = 'Courier';
        $this->CoreFonts['courierB']     = 'Courier-Bold';
        $this->CoreFonts['courierI']     = 'Courier-Oblique';
        $this->CoreFonts['courierBI']    = 'Courier-BoldOblique';
        $this->CoreFonts['helvetica']    = 'Helvetica';
        $this->CoreFonts['helveticaB']   = 'Helvetica-Bold';
        $this->CoreFonts['helveticaI']   = 'Helvetica-Oblique';
        $this->CoreFonts['helveticaBI']  = 'Helvetica-BoldOblique';
        $this->CoreFonts['times']        = 'Times-Roman';
        $this->CoreFonts['timesB']       = 'Times-Bold';
        $this->CoreFonts['timesI']       = 'Times-Italic';
        $this->CoreFonts['timesBI']      = 'Times-BoldItalic';
        $this->CoreFonts['symbol']       = 'Symbol';
        $this->CoreFonts['zapfdingbats'] = 'ZapfDingbats';

        // Scale factor
        if ($unit == 'pt') {
            $this->k = 1;
        } else if ($unit == 'mm') {
            $this->k = 72/25.4;
        } else if ($unit == 'cm') {
            $this->k = 72/2.54;
        } else if ($unit == 'in') {
            $this->k = 72;
        } else {
            $this->Error('Incorrect unit: ' . $unit);
        } // end if... else if... else...

        // Page format
        if (is_string($format)) {
            // 2002-07-24 - Nicola Asuni ([e-mail])
            // Added new page formats (45 standard ISO paper formats and 4
            // american common formats).
            // Paper cordinates are calculated in this way:
            //    (inches * 72) where (1 inch = 2.54 cm)
            switch (strtoupper($format)) {
                case '4A0':
                    $format = array(4767.87, 6740.79);
                    break;
                case '2A0':
                    $format = array(3370.39, 4767.87);
                    break;
                case 'A0':
                    $format = array(2383.94, 3370.39);
                    break;
                case 'A1':
                    $format = array(1683.78, 2383.94);
                    break;
                case 'A2':
                    $format = array(1190.55, 1683.78);
                    break;
                case 'A3':
                    $format = array(841.89, 1190.55);
                    break;
                case 'A4':
                    $format = array(595.28, 841.89);
                    break;
                case 'A5':
                    $format = array(419.53, 595.28);
                    break;
                case 'A6':
                    $format = array(297.64, 419.53);
                    break;
                case 'A7':
                    $format = array(209.76, 297.64);
                    break;
                case 'A8':
                    $format = array(147.40, 209.76);
                    break;
                case 'A9':
                    $format = array(104.88, 147.40);
                    break;
                case 'A10':
                    $format = array(73.70, 104.88);
                    break;
                case 'B0':
                    $format = array(2834.65, 4008.19);
                    break;
                case 'B1':
                    $format = array(2004.09, 2834.65);
                    break;
                case 'B2':
                    $format = array(1417.32, 2004.09);
                    break;
                case 'B3':
                    $format = array(1000.63, 1417.32);
                    break;
                case 'B4':
                    $format = array(708.66, 1000.63);
                    break;
                case 'B5':
                    $format = array(498.90, 708.66);
                    break;
                case 'B6':
                    $format = array(354.33, 498.90);
                    break;
                case 'B7':
                    $format = array(249.45, 354.33);
                    break;
                case 'B8':
                    $format = array(175.75, 249.45);
                    break;
                case 'B9':
                    $format = array(124.72, 175.75);
                    break;
                case 'B10':
                    $format = array(87.87, 124.72);
                    break;
                case 'C0':
                    $format = array(2599.37, 3676.54);
                    break;
                case 'C1':
                    $format = array(1836.85, 2599.37);
                    break;
                case 'C2':
                    $format = array(1298.27, 1836.85);
                    break;
                case 'C3':
                    $format = array(918.43, 1298.27);
                    break;
                case 'C4':
                    $format = array(649.13, 918.43);
                    break;
                case 'C5':
                    $format = array(459.21, 649.13);
                    break;
                case 'C6':
                    $format = array(323.15, 459.21);
                    break;
                case 'C7':
                    $format = array(229.61, 323.15);
                    break;
                case 'C8':
                    $format = array(161.57, 229.61);
                    break;
                case 'C9':
                    $format = array(113.39, 161.57);
                    break;
                case 'C10':
                    $format = array(79.37, 113.39);
                    break;
                case 'RA0':
                    $format = array(2437.80, 3458.27);
                    break;
                case 'RA1':
                    $format = array(1729.13, 2437.80);
                    break;
                case 'RA2':
                    $format = array(1218.90, 1729.13);
                    break;
                case 'RA3':
                    $format = array(864.57, 1218.90);
                    break;
                case 'RA4':
                    $format = array(609.45, 864.57);
                    break;
                case 'SRA0':
                    $format = array(2551.18, 3628.35);
                    break;
                case 'SRA1':
                    $format = array(1814.17, 2551.18);
                    break;
                case 'SRA2':
                    $format = array(1275.59, 1814.17);
                    break;
                case 'SRA3':
                    $format = array(907.09, 1275.59);
                    break;
                case 'SRA4':
                    $format = array(637.80, 907.09);
                    break;
                case 'LETTER':
                    $format = array(612.00, 792.00);
                    break;
                case 'LEGAL':
                    $format = array(612.00, 1008.00);
                    break;
                case 'EXECUTIVE':
                    $format = array(521.86, 756.00);
                    break;
                case 'FOLIO':
                    $format = array(612.00, 936.00);
                    break;
                default:
                    $this->Error('Unknown page format: ' . $format);
                    break;
            } // end switch
            $this->fwPt = $format[0];
            $this->fhPt = $format[1];
        }
        else {
            $this->fwPt = $format[0] * $this->k;
            $this->fhPt = $format[1] * $this->k;
        } // end if... else...
        $this->fw       = $this->fwPt / $this->k;
        $this->fh       = $this->fhPt / $this->k;

        // Page orientation
        $orientation    = strtolower($orientation);
        if ($orientation == 'p' || $orientation == 'portrait') {
            $this->DefOrientation = 'P';
            $this->wPt            = $this->fwPt;
            $this->hPt            = $this->fhPt;
        }
        else if ($orientation == 'l' || $orientation == 'landscape') {
            $this->DefOrientation = 'L';
            $this->wPt            = $this->fhPt;
            $this->hPt            = $this->fwPt;
        }
        else {
            $this->Error('Incorrect orientation: ' . $orientation);
        } // end if... else if... else...
        $this->CurOrientation     = $this->DefOrientation;
        $this->w                  = $this->wPt / $this->k;
        $this->h                  = $this->hPt / $this->k;

        // Page margins (1 cm)
        $margin          = 28.35 / $this->k;
        $this->SetMargins($margin, $margin);

        // Interior cell margin (1 mm)
        $this->cMargin   = $margin / 10;