vendor/amenadiel/jpgraph/src/graph/Axis.php line 27

  1. <?php
  3. /**
  4.  * JPGraph v4.0.3
  5.  */
  7. namespace Amenadiel\JpGraph\Graph;
  9. use Amenadiel\JpGraph\Util;
  11. /**
  12.  * @class Axis
  13.  * // Description: Defines X and Y axis. Notes that at the
  14.  * // moment the code is not really good since the axis on
  15.  * // several occasion must know wheter it's an X or Y axis.
  16.  * // This was a design decision to make the code easier to
  17.  * // follow.
  18.  */
  19. class Axis extends AxisPrototype
  20. {
  21.     public function __construct($img, $aScale, $color = 'black')
  22.     {
  23.         parent::__construct($img, $aScale, $color);
  24.     }
  26.     // Stroke the axis.
  27.     public function Stroke($aOtherAxisScale, $aStrokeLabels = true)
  28.     {
  29.         if ($this->hide) {
  30.             return;
  31.         }
  33.         if (is_numeric($this->pos)) {
  34.             $pos = $aOtherAxisScale->Translate($this->pos);
  35.         } else {
  36.             // Default to minimum of other scale if pos not set
  37.             if (($aOtherAxisScale->GetMinVal() >= 0 && $this->pos == false) || $this->pos == 'min') {
  38.                 $pos = $aOtherAxisScale->scale_abs[0];
  39.             } elseif ($this->pos == 'max') {
  40.                 $pos = $aOtherAxisScale->scale_abs[1];
  41.             } else {
  42.                 // If negative set x-axis at 0
  43.                 $this->pos = 0;
  44.                 $pos       = $aOtherAxisScale->Translate(0);
  45.             }
  46.         }
  48.         $pos += $this->iDeltaAbsPos;
  49.         $this->img->SetLineWeight($this->weight);
  50.         $this->img->SetColor($this->color);
  51.         $this->img->SetFont($this->font_family, $this->font_style, $this->font_size);
  53.         if ($this->scale->type == 'x') {
  54.             if (!$this->hide_line) {
  55.                 // Stroke X-axis
  56.                 $this->img->FilledRectangle(
  57.                     $this->img->left_margin,
  58.                     $pos,
  59.                     $this->img->width - $this->img->right_margin,
  60.                     $pos + $this->weight - 1
  61.                 );
  62.             }
  63.             if ($this->title_side == SIDE_DOWN) {
  64.                 $y      = $pos + $this->img->GetFontHeight() + $this->title_margin + $this->title->margin;
  65.                 $yalign = 'top';
  66.             } else {
  67.                 $y      = $pos - $this->img->GetFontHeight() - $this->title_margin - $this->title->margin;
  68.                 $yalign = 'bottom';
  69.             }
  71.             if ($this->title_adjust == 'high') {
  72.                 $this->title->SetPos($this->img->width - $this->img->right_margin, $y, 'right', $yalign);
  73.             } elseif ($this->title_adjust == 'middle' || $this->title_adjust == 'center') {
  74.                 $this->title->SetPos(($this->img->width - $this->img->left_margin - $this->img->right_margin) / 2 + $this->img->left_margin, $y, 'center', $yalign);
  75.             } elseif ($this->title_adjust == 'low') {
  76.                 $this->title->SetPos($this->img->left_margin, $y, 'left', $yalign);
  77.             } else {
  78.                 Util\JpGraphError::RaiseL(25060, $this->title_adjust); //('Unknown alignment specified for X-axis title. ('.$this->title_adjust.')');
  79.             }
  80.         } elseif ($this->scale->type == 'y') {
  81.             // Add line weight to the height of the axis since
  82.             // the x-axis could have a width>1 and we want the axis to fit nicely together.
  83.             if (!$this->hide_line) {
  84.                 // Stroke Y-axis
  85.                 $this->img->FilledRectangle(
  86.                     $pos - $this->weight + 1,
  87.                     $this->img->top_margin,
  88.                     $pos,
  89.                     $this->img->height - $this->img->bottom_margin + $this->weight - 1
  90.                 );
  91.             }
  93.             $x = $pos;
  94.             if ($this->title_side == SIDE_LEFT) {
  95.                 $x -= $this->title_margin;
  96.                 $x -= $this->title->margin;
  97.                 $halign = 'right';
  98.             } else {
  99.                 $x += $this->title_margin;
  100.                 $x += $this->title->margin;
  101.                 $halign = 'left';
  102.             }
  103.             // If the user has manually specified an hor. align
  104.             // then we override the automatic settings with this
  105.             // specifed setting. Since default is 'left' we compare
  106.             // with that. (This means a manually set 'left' align
  107.             // will have no effect.)
  108.             if ($this->title->halign != 'left') {
  109.                 $halign = $this->title->halign;
  110.             }
  111.             if ($this->title_adjust == 'high') {
  112.                 $this->title->SetPos($x, $this->img->top_margin, $halign, 'top');
  113.             } elseif ($this->title_adjust == 'middle' || $this->title_adjust == 'center') {
  114.                 $this->title->SetPos($x, ($this->img->height - $this->img->top_margin - $this->img->bottom_margin) / 2 + $this->img->top_margin, $halign, 'center');
  115.             } elseif ($this->title_adjust == 'low') {
  116.                 $this->title->SetPos($x, $this->img->height - $this->img->bottom_margin, $halign, 'bottom');
  117.             } else {
  118.                 Util\JpGraphError::RaiseL(25061, $this->title_adjust); //('Unknown alignment specified for Y-axis title. ('.$this->title_adjust.')');
  119.             }
  120.         }
  121.         $this->scale->ticks->Stroke($this->img, $this->scale, $pos);
  122.         if ($aStrokeLabels) {
  123.             if (!$this->hide_labels) {
  124.                 $this->StrokeLabels($pos);
  125.             }
  126.             $this->title->Stroke($this->img);
  127.         }
  128.     }
  130.     /**
  131.      * PRIVATE METHODS
  132.      * // Draw all the tick labels on major tick marks.
  133.      *
  134.      * @param mixed $aPos
  135.      * @param mixed $aMinor
  136.      * @param mixed $aAbsLabel
  137.      */
  138.     public function StrokeLabels($aPos, $aMinor = false, $aAbsLabel = false)
  139.     {
  140.         if (is_array($this->label_color) && safe_count($this->label_color) > 3) {
  141.             $this->ticks_label_colors = $this->label_color;
  142.             $this->img->SetColor($this->label_color[0]);
  143.         } else {
  144.             $this->img->SetColor($this->label_color);
  145.         }
  146.         $this->img->SetFont($this->font_family, $this->font_style, $this->font_size);
  147.         $yoff = $this->img->GetFontHeight() / 2;
  149.         // Only draw labels at major tick marks
  150.         $nbr = safe_count($this->scale->ticks->maj_ticks_label);
  152.         // We have the option to not-display the very first mark
  153.         // (Usefull when the first label might interfere with another
  154.         // axis.)
  155.         $i = $this->show_first_label ? 0 : 1;
  156.         if (!$this->show_last_label) {
  157.             --$nbr;
  158.         }
  159.         // Now run through all labels making sure we don't overshoot the end
  160.         // of the scale.
  161.         $ncolor = 0;
  162.         if (isset($this->ticks_label_colors)) {
  163.             $ncolor = safe_count($this->ticks_label_colors);
  164.         }
  165.         while ($i < $nbr) {
  166.             // $tpos holds the absolute text position for the label
  167.             $tpos = $this->scale->ticks->maj_ticklabels_pos[$i];
  169.             // Note. the $limit is only used for the x axis since we
  170.             // might otherwise overshoot if the scale has been centered
  171.             // This is due to us "loosing" the last tick mark if we center.
  172.             if ($this->scale->type == 'x' && $tpos > $this->img->width - $this->img->right_margin + 1) {
  173.                 return;
  174.             }
  175.             // we only draw every $label_step label
  176.             if (($i % $this->label_step) == 0) {
  177.                 // Set specific label color if specified
  178.                 if ($ncolor > 0) {
  179.                     $this->img->SetColor($this->ticks_label_colors[$i % $ncolor]);
  180.                 }
  182.                 // If the label has been specified use that and in other case
  183.                 // just label the mark with the actual scale value
  184.                 $m = $this->scale->ticks->GetMajor();
  186.                 // ticks_label has an entry for each data point and is the array
  187.                 // that holds the labels set by the user. If the user hasn't
  188.                 // specified any values we use whats in the automatically asigned
  189.                 // labels in the maj_ticks_label
  190.                 if (isset($this->ticks_label[$i * $m])) {
  191.                     $label = $this->ticks_label[$i * $m];
  192.                 } else {
  193.                     if ($aAbsLabel) {
  194.                         $label = abs($this->scale->ticks->maj_ticks_label[$i]);
  195.                     } else {
  196.                         $label = $this->scale->ticks->maj_ticks_label[$i];
  197.                     }
  199.                     // We number the scale from 1 and not from 0 so increase by one
  200.                     if ($this->scale->textscale &&
  201.                         $this->scale->ticks->label_formfunc == '' &&
  202.                         !$this->scale->ticks->HaveManualLabels()) {
  203.                         ++$label;
  204.                     }
  205.                 }
  207.                 if ($this->scale->type == 'x') {
  208.                     if ($this->labelPos == SIDE_DOWN) {
  209.                         if ($this->label_angle == 0 || $this->label_angle == 90) {
  210.                             if ($this->label_halign == '' && $this->label_valign == '') {
  211.                                 $this->img->SetTextAlign('center', 'top');
  212.                             } else {
  213.                                 $this->img->SetTextAlign($this->label_halign, $this->label_valign);
  214.                             }
  215.                         } else {
  216.                             if ($this->label_halign == '' && $this->label_valign == '') {
  217.                                 $this->img->SetTextAlign('right', 'top');
  218.                             } else {
  219.                                 $this->img->SetTextAlign($this->label_halign, $this->label_valign);
  220.                             }
  221.                         }
  222.                         $this->img->StrokeText(
  223.                             $tpos,
  224.                             $aPos + $this->tick_label_margin,
  225.                             $label,
  226.                             $this->label_angle,
  227.                             $this->label_para_align
  228.                         );
  229.                     } else {
  230.                         if ($this->label_angle == 0 || $this->label_angle == 90) {
  231.                             if ($this->label_halign == '' && $this->label_valign == '') {
  232.                                 $this->img->SetTextAlign('center', 'bottom');
  233.                             } else {
  234.                                 $this->img->SetTextAlign($this->label_halign, $this->label_valign);
  235.                             }
  236.                         } else {
  237.                             if ($this->label_halign == '' && $this->label_valign == '') {
  238.                                 $this->img->SetTextAlign('right', 'bottom');
  239.                             } else {
  240.                                 $this->img->SetTextAlign($this->label_halign, $this->label_valign);
  241.                             }
  242.                         }
  243.                         $this->img->StrokeText(
  244.                             $tpos,
  245.                             $aPos - $this->tick_label_margin - 1,
  246.                             $label,
  247.                             $this->label_angle,
  248.                             $this->label_para_align
  249.                         );
  250.                     }
  251.                 } else {
  252.                     // scale->type == "y"
  253.                     //if( $this->label_angle!=0 )
  254.                     //Util\JpGraphError::Raise(" Labels at an angle are not supported on Y-axis");
  255.                     if ($this->labelPos == SIDE_LEFT) {
  256.                         // To the left of y-axis
  257.                         if ($this->label_halign == '' && $this->label_valign == '') {
  258.                             $this->img->SetTextAlign('right', 'center');
  259.                         } else {
  260.                             $this->img->SetTextAlign($this->label_halign, $this->label_valign);
  261.                         }
  262.                         $this->img->StrokeText($aPos - $this->tick_label_margin, $tpos, $label, $this->label_angle, $this->label_para_align);
  263.                     } else {
  264.                         // To the right of the y-axis
  265.                         if ($this->label_halign == '' && $this->label_valign == '') {
  266.                             $this->img->SetTextAlign('left', 'center');
  267.                         } else {
  268.                             $this->img->SetTextAlign($this->label_halign, $this->label_valign);
  269.                         }
  270.                         $this->img->StrokeText($aPos + $this->tick_label_margin, $tpos, $label, $this->label_angle, $this->label_para_align);
  271.                     }
  272.                 }
  273.             }
  274.             ++$i;
  275.         }
  276.     }
  277. }