Excel5.php in Loft Data Grids 6.2

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vendor/phpoffice/phpexcel/Classes/PHPExcel/Shared/Excel5.php

<?php

/**
 * PHPExcel
 *
 * Copyright (c) 2006 - 2014 PHPExcel
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * @category   PHPExcel
 * @package    PHPExcel_Shared
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 * @license    http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt	LGPL
 * @version    ##VERSION##, ##DATE##
 */

/**
 * PHPExcel_Shared_Excel5
 *
 * @category   PHPExcel
 * @package    PHPExcel_Shared
 * @copyright  Copyright (c) 2006 - 2014 PHPExcel (http://www.codeplex.com/PHPExcel)
 */
class PHPExcel_Shared_Excel5 {

  /**
   * Get the width of a column in pixels. We use the relationship y = ceil(7x) where
   * x is the width in intrinsic Excel units (measuring width in number of normal characters)
   * This holds for Arial 10
   *
   * @param PHPExcel_Worksheet $sheet The sheet
   * @param string $col The column
   * @return integer The width in pixels
   */
  public static function sizeCol($sheet, $col = 'A') {

    // default font of the workbook
    $font = $sheet
      ->getParent()
      ->getDefaultStyle()
      ->getFont();
    $columnDimensions = $sheet
      ->getColumnDimensions();

    // first find the true column width in pixels (uncollapsed and unhidden)
    if (isset($columnDimensions[$col]) and $columnDimensions[$col]
      ->getWidth() != -1) {

      // then we have column dimension with explicit width
      $columnDimension = $columnDimensions[$col];
      $width = $columnDimension
        ->getWidth();
      $pixelWidth = PHPExcel_Shared_Drawing::cellDimensionToPixels($width, $font);
    }
    else {
      if ($sheet
        ->getDefaultColumnDimension()
        ->getWidth() != -1) {

        // then we have default column dimension with explicit width
        $defaultColumnDimension = $sheet
          ->getDefaultColumnDimension();
        $width = $defaultColumnDimension
          ->getWidth();
        $pixelWidth = PHPExcel_Shared_Drawing::cellDimensionToPixels($width, $font);
      }
      else {

        // we don't even have any default column dimension. Width depends on default font
        $pixelWidth = PHPExcel_Shared_Font::getDefaultColumnWidthByFont($font, true);
      }
    }

    // now find the effective column width in pixels
    if (isset($columnDimensions[$col]) and !$columnDimensions[$col]
      ->getVisible()) {
      $effectivePixelWidth = 0;
    }
    else {
      $effectivePixelWidth = $pixelWidth;
    }
    return $effectivePixelWidth;
  }

  /**
   * Convert the height of a cell from user's units to pixels. By interpolation
   * the relationship is: y = 4/3x. If the height hasn't been set by the user we
   * use the default value. If the row is hidden we use a value of zero.
   *
   * @param PHPExcel_Worksheet $sheet The sheet
   * @param integer $row The row index (1-based)
   * @return integer The width in pixels
   */
  public static function sizeRow($sheet, $row = 1) {

    // default font of the workbook
    $font = $sheet
      ->getParent()
      ->getDefaultStyle()
      ->getFont();
    $rowDimensions = $sheet
      ->getRowDimensions();

    // first find the true row height in pixels (uncollapsed and unhidden)
    if (isset($rowDimensions[$row]) and $rowDimensions[$row]
      ->getRowHeight() != -1) {

      // then we have a row dimension
      $rowDimension = $rowDimensions[$row];
      $rowHeight = $rowDimension
        ->getRowHeight();
      $pixelRowHeight = (int) ceil(4 * $rowHeight / 3);

      // here we assume Arial 10
    }
    else {
      if ($sheet
        ->getDefaultRowDimension()
        ->getRowHeight() != -1) {

        // then we have a default row dimension with explicit height
        $defaultRowDimension = $sheet
          ->getDefaultRowDimension();
        $rowHeight = $defaultRowDimension
          ->getRowHeight();
        $pixelRowHeight = PHPExcel_Shared_Drawing::pointsToPixels($rowHeight);
      }
      else {

        // we don't even have any default row dimension. Height depends on default font
        $pointRowHeight = PHPExcel_Shared_Font::getDefaultRowHeightByFont($font);
        $pixelRowHeight = PHPExcel_Shared_Font::fontSizeToPixels($pointRowHeight);
      }
    }

    // now find the effective row height in pixels
    if (isset($rowDimensions[$row]) and !$rowDimensions[$row]
      ->getVisible()) {
      $effectivePixelRowHeight = 0;
    }
    else {
      $effectivePixelRowHeight = $pixelRowHeight;
    }
    return $effectivePixelRowHeight;
  }

  /**
   * Get the horizontal distance in pixels between two anchors
   * The distanceX is found as sum of all the spanning columns widths minus correction for the two offsets
   *
   * @param PHPExcel_Worksheet $sheet
   * @param string $startColumn
   * @param integer $startOffsetX Offset within start cell measured in 1/1024 of the cell width
   * @param string $endColumn
   * @param integer $endOffsetX Offset within end cell measured in 1/1024 of the cell width
   * @return integer Horizontal measured in pixels
   */
  public static function getDistanceX(PHPExcel_Worksheet $sheet, $startColumn = 'A', $startOffsetX = 0, $endColumn = 'A', $endOffsetX = 0) {
    $distanceX = 0;

    // add the widths of the spanning columns
    $startColumnIndex = PHPExcel_Cell::columnIndexFromString($startColumn) - 1;

    // 1-based
    $endColumnIndex = PHPExcel_Cell::columnIndexFromString($endColumn) - 1;

    // 1-based
    for ($i = $startColumnIndex; $i <= $endColumnIndex; ++$i) {
      $distanceX += self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($i));
    }

    // correct for offsetX in startcell
    $distanceX -= (int) floor(self::sizeCol($sheet, $startColumn) * $startOffsetX / 1024);

    // correct for offsetX in endcell
    $distanceX -= (int) floor(self::sizeCol($sheet, $endColumn) * (1 - $endOffsetX / 1024));
    return $distanceX;
  }

  /**
   * Get the vertical distance in pixels between two anchors
   * The distanceY is found as sum of all the spanning rows minus two offsets
   *
   * @param PHPExcel_Worksheet $sheet
   * @param integer $startRow (1-based)
   * @param integer $startOffsetY Offset within start cell measured in 1/256 of the cell height
   * @param integer $endRow (1-based)
   * @param integer $endOffsetY Offset within end cell measured in 1/256 of the cell height
   * @return integer Vertical distance measured in pixels
   */
  public static function getDistanceY(PHPExcel_Worksheet $sheet, $startRow = 1, $startOffsetY = 0, $endRow = 1, $endOffsetY = 0) {
    $distanceY = 0;

    // add the widths of the spanning rows
    for ($row = $startRow; $row <= $endRow; ++$row) {
      $distanceY += self::sizeRow($sheet, $row);
    }

    // correct for offsetX in startcell
    $distanceY -= (int) floor(self::sizeRow($sheet, $startRow) * $startOffsetY / 256);

    // correct for offsetX in endcell
    $distanceY -= (int) floor(self::sizeRow($sheet, $endRow) * (1 - $endOffsetY / 256));
    return $distanceY;
  }

  /**
   * Convert 1-cell anchor coordinates to 2-cell anchor coordinates
   * This function is ported from PEAR Spreadsheet_Writer_Excel with small modifications
   *
   * Calculate the vertices that define the position of the image as required by
   * the OBJ record.
   *
   *		 +------------+------------+
   *		 |	 A	  |	  B	 |
   *   +-----+------------+------------+
   *   |	 |(x1,y1)	 |			|
   *   |  1  |(A1)._______|______	  |
   *   |	 |	|			  |	 |
   *   |	 |	|			  |	 |
   *   +-----+----|	BITMAP	|-----+
   *   |	 |	|			  |	 |
   *   |  2  |	|______________.	 |
   *   |	 |			|		(B2)|
   *   |	 |			|	 (x2,y2)|
   *   +---- +------------+------------+
   *
   * Example of a bitmap that covers some of the area from cell A1 to cell B2.
   *
   * Based on the width and height of the bitmap we need to calculate 8 vars:
   *	 $col_start, $row_start, $col_end, $row_end, $x1, $y1, $x2, $y2.
   * The width and height of the cells are also variable and have to be taken into
   * account.
   * The values of $col_start and $row_start are passed in from the calling
   * function. The values of $col_end and $row_end are calculated by subtracting
   * the width and height of the bitmap from the width and height of the
   * underlying cells.
   * The vertices are expressed as a percentage of the underlying cell width as
   * follows (rhs values are in pixels):
   *
   *	   x1 = X / W *1024
   *	   y1 = Y / H *256
   *	   x2 = (X-1) / W *1024
   *	   y2 = (Y-1) / H *256
   *
   *	   Where:  X is distance from the left side of the underlying cell
   *			   Y is distance from the top of the underlying cell
   *			   W is the width of the cell
   *			   H is the height of the cell
   *
   * @param PHPExcel_Worksheet $sheet
   * @param string $coordinates E.g. 'A1'
   * @param integer $offsetX Horizontal offset in pixels
   * @param integer $offsetY Vertical offset in pixels
   * @param integer $width Width in pixels
   * @param integer $height Height in pixels
   * @return array
   */
  public static function oneAnchor2twoAnchor($sheet, $coordinates, $offsetX, $offsetY, $width, $height) {
    list($column, $row) = PHPExcel_Cell::coordinateFromString($coordinates);
    $col_start = PHPExcel_Cell::columnIndexFromString($column) - 1;
    $row_start = $row - 1;
    $x1 = $offsetX;
    $y1 = $offsetY;

    // Initialise end cell to the same as the start cell
    $col_end = $col_start;

    // Col containing lower right corner of object
    $row_end = $row_start;

    // Row containing bottom right corner of object
    // Zero the specified offset if greater than the cell dimensions
    if ($x1 >= self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_start))) {
      $x1 = 0;
    }
    if ($y1 >= self::sizeRow($sheet, $row_start + 1)) {
      $y1 = 0;
    }
    $width = $width + $x1 - 1;
    $height = $height + $y1 - 1;

    // Subtract the underlying cell widths to find the end cell of the image
    while ($width >= self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_end))) {
      $width -= self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_end));
      ++$col_end;
    }

    // Subtract the underlying cell heights to find the end cell of the image
    while ($height >= self::sizeRow($sheet, $row_end + 1)) {
      $height -= self::sizeRow($sheet, $row_end + 1);
      ++$row_end;
    }

    // Bitmap isn't allowed to start or finish in a hidden cell, i.e. a cell
    // with zero height or width.
    if (self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_start)) == 0) {
      return;
    }
    if (self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_end)) == 0) {
      return;
    }
    if (self::sizeRow($sheet, $row_start + 1) == 0) {
      return;
    }
    if (self::sizeRow($sheet, $row_end + 1) == 0) {
      return;
    }

    // Convert the pixel values to the percentage value expected by Excel
    $x1 = $x1 / self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_start)) * 1024;
    $y1 = $y1 / self::sizeRow($sheet, $row_start + 1) * 256;
    $x2 = ($width + 1) / self::sizeCol($sheet, PHPExcel_Cell::stringFromColumnIndex($col_end)) * 1024;

    // Distance to right side of object
    $y2 = ($height + 1) / self::sizeRow($sheet, $row_end + 1) * 256;

    // Distance to bottom of object
    $startCoordinates = PHPExcel_Cell::stringFromColumnIndex($col_start) . ($row_start + 1);
    $endCoordinates = PHPExcel_Cell::stringFromColumnIndex($col_end) . ($row_end + 1);
    $twoAnchor = array(
      'startCoordinates' => $startCoordinates,
      'startOffsetX' => $x1,
      'startOffsetY' => $y1,
      'endCoordinates' => $endCoordinates,
      'endOffsetX' => $x2,
      'endOffsetY' => $y2,
    );
    return $twoAnchor;
  }

}

Classes

Name	Description
PHPExcel_Shared_Excel5	PHPExcel_Shared_Excel5