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draft cell/text alignment
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@nicolaasuni
nicolaasuni committed Nov 2, 2023
1 parent d8dd45f commit 1b196f9
Showing 1 changed file with 110 additions and 15 deletions.
125 changes: 110 additions & 15 deletions src/Cell.php
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Original file line number Diff line number Diff line change
Expand Up @@ -130,35 +130,47 @@ protected function cellMinHeight($align = 'C', array $cell = array())
switch ($align) {
default:
case 'C': // Center
return ($curfont['height'] + (2 * max($cell['padding']['T'], $cell['padding']['B'])));
case 'T': // Top
case 'B': // Bottom
return ($cell['padding']['T'] + $curfont['height'] + $cell['padding']['B']);
return ($curfont['height'] + $cell['padding']['T'] + $cell['padding']['B']);
case 'L': // Center on font Baseline
return ($cell['padding']['T'] + $curfont['height'] + $curfont['midpoint'] + $cell['padding']['B']);
return (2 * max(
($cell['padding']['T'] + $curfont['ascent']),
($cell['padding']['B'] - $curfont['descent'])
));
case 'A': // Center on font Ascent
case 'D': // Center on font Descent
return ($cell['padding']['T'] + (2 * $curfont['height']) + $cell['padding']['B']);
return (2 * ($curfont['height'] + max($cell['padding']['T'], $cell['padding']['B'])));
}
}

/**
* Returns the minimum cell width in points for the current text
*
* @param float $txtwidth Text width in internal points.
* @param string $align Cell horizontal alignment: L=left; C=center; R=right.
* @param array $cell Optional to overwrite cell parameters for padding, margin etc.
*
* @return float
*/
protected function cellMinWidth($txtwidth, array $cell = array())
protected function cellMinWidth($txtwidth, $align = 'L', array $cell = array())
{
if (empty($cell)) {
$cell = $this->defcell;
}
return ($cell['padding']['L'] + $txtwidth + $cell['padding']['R']);
switch ($align) {
default:
case 'L': // Left
case 'R': // Right
return ($txtwidth + $cell['padding']['L'] + $cell['padding']['R']);
case 'C': // Center
return ($txtwidth + (2 * max($cell['padding']['L'], $cell['padding']['R'])));
}
}

/**
* Returns the cell top-left Y coordinate to account for margins.
* Returns the adjusted cell top Y coordinate to account for margins.
*
* @param float $pnty Starting top Y coordinate in internal points.
* @param float $pheight Cell height in internal points.
Expand All @@ -172,20 +184,45 @@ protected function cellVPos($pnty, $pheight, $align = 'T', array $cell = array()
if (empty($cell)) {
$cell = $this->defcell;
}
// cell vertical alignment
switch ($align) {
case 'T': // Top
return ($pnty - $cell['margin']['T']);
case 'C': // Center
return ($pnty + (($cell['margin']['T'] + $pheight + $cell['margin']['B']) / 2));
return ($pnty + ($pheight / 2));
case 'B': // Bottom
return ($pnty + $cell['margin']['B'] + $pheight);
}
return $pnty;
}

/**
* Returns the vertical distance between the cell top-left corner and the text baseline.
* Returns the adjusted cell left X coordinate to account for margins.
*
* @param float $pntx Starting top Y coordinate in internal points.
* @param float $pwidth Cell width in internal points.
* @param string $align Cell horizontal alignment: L=left; C=center; R=right.
* @param array $cell Optional to overwrite cell parameters for padding, margin etc.
*
* @return float
*/
protected function cellHPos($pntx, $pwidth, $align = 'L', array $cell = array())
{
if (empty($cell)) {
$cell = $this->defcell;
}
switch ($align) {
case 'L': // Left
return ($pntx + $cell['margin']['L']);
case 'R': // Right
return ($pntx - $cell['margin']['R'] - $pwidth);
case 'C': // Center
return ($pntx - ($pwidth / 2));
}
return $pntx;
}

/**
* Returns the vertical distance between the cell top side and the text baseline.
*
* @param float $pheight Cell height in internal points.
* @param string $align Text vertical alignment inside the cell:
Expand All @@ -208,22 +245,48 @@ protected function cellTextVAlign($pheight, $align = 'C', array $cell = array())
switch ($align) {
default:
case 'C': // Center
return ($curfont['midpoint'] + ($pheight / 2));
return (($pheight / 2) + $curfont['midpoint']);
case 'T': // Top
return ($curfont['ascent'] + $cell['padding']['T']);
return ($cell['padding']['T'] + $curfont['ascent']);
case 'B': // Bottom
return ($curfont['descent'] - $cell['padding']['B'] + $pheight);
return ($pheight - $cell['padding']['B'] + $curfont['descent']);
case 'L': // Center on font Baseline
return ($pheight / 2);
case 'A': // Center on font Ascent
return ($curfont['ascent'] + ($pheight / 2));
return (($pheight / 2) + $curfont['ascent']);
case 'D': // Center on font Descent
return ($curfont['descent'] + ($pheight / 2));
return (($pheight / 2) + $curfont['descent']);
}
}

/**
* Returns the horizontal distance between the cell left side and the text left side.
*
* @param float $pwidth Cell width in internal points.
* @param float $txtpwidth Text width in internal points.
* @param string $align Text vertical alignment inside the cell: L=left; C=center; R=right.
* @param array $cell Optional to overwrite cell parameters for padding, margin etc.
*
* @return float
*/
protected function cellTextHAlign($pwidth, $txtpwidth, $align = 'L', array $cell = array())
{
if (empty($cell)) {
$cell = $this->defcell;
}
switch ($align) {
default:
case 'L': // Left
return ($cell['padding']['L']);
case 'C': // Center
return (($pwidth - $txtpwidth) / 2);
case 'R': // Right
return ($pwidth - $cell['padding']['R'] - $txtpwidth);
}
}

/**
* Returns the top-left Y coordinate of the cell wrapping the text.
* Returns the top Y coordinate of the cell wrapping the text.
*
* @param float $txty Text baseline top Y coordinate in internal points.
* @param float $pheight Cell height in internal points.
Expand All @@ -243,6 +306,22 @@ protected function cellVPosFromText($txty, $pheight, $align = 'C', array $cell =
return ($txty + $this->cellTextVAlign($pheight, $align, $cell));
}

/**
* Returns the left X coordinate of the cell wrapping the text.
*
* @param float $txtx Text left X coordinate in internal points.
* @param float $pwidth Cell width in internal points.
* @param float $txtpwidth Text width in internal points.
* @param string $align Text vertical alignment inside the cell: L=left; C=center; R=right.
* @param array $cell Optional to overwrite cell parameters for padding, margin etc.
*
* @return float
*/
protected function cellHPosFromText($txtx, $pwidth, $txtpwidth, $align = 'L', array $cell = array())
{
return ($txtx - $this->cellTextHAlign($pwidth, $txtpwidth, $align, $cell));
}

/**
* Returns the baseline Y coordinate of the text inside the cell.
*
Expand All @@ -263,4 +342,20 @@ protected function textVPosFromCell($pnty, $pheight, $align = 'C', array $cell =
{
return ($pnty - $this->cellTextVAlign($pheight, $align, $cell));
}

/**
* Returns the left X coordinate of the text inside the cell.
*
* @param float $txtx Text left X coordinate in internal points.
* @param float $pwidth Cell width in internal points.
* @param float $txtpwidth Text width in internal points.
* @param string $align Text vertical alignment inside the cell: L=left; C=center; R=right.
* @param array $cell Optional to overwrite cell parameters for padding, margin etc.
*
* @return float
*/
protected function textHPosFromCell($txtx, $pwidth, $txtpwidth, $align = 'L', array $cell = array())
{
return ($txtx + $this->cellTextHAlign($pwidth, $txtpwidth, $align, $cell));
}
}

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