388 lines
12 KiB
PHP
Executable File
388 lines
12 KiB
PHP
Executable File
<?php
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//=======================================================================
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// File: JPGRAPH_TEXT.INC.PHP
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// Description: Class to handle text as object in the graph.
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// The low level text layout engine is handled by the GD class
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// Created: 2001-01-08 (Refactored to separate file 2008-08-01)
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// Ver: $Id: jpgraph_text.inc.php 1844 2009-09-26 17:05:31Z ljp $
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//
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// Copyright (c) Asial Corporation. All rights reserved.
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//========================================================================
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//===================================================
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// CLASS Text
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// Description: Arbitrary text object that can be added to the graph
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//===================================================
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class Text
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{
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public $t;
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public $x=0;
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public $y=0;
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public $halign="left";
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public $valign="top";
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public $color=array(0,0,0);
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public $hide=false;
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public $dir=0;
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public $iScalePosY=null;
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public $iScalePosX=null;
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public $iWordwrap=0;
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public $font_family=FF_DEFAULT;
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public $font_style=FS_NORMAL; // old. FF_FONT1
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protected $boxed=false; // Should the text be boxed
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protected $paragraph_align="left";
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protected $icornerradius=0;
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protected $ishadowwidth=3;
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protected $fcolor='white';
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protected $bcolor='black';
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protected $shadow=false;
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protected $iCSIMarea='';
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protected $iCSIMalt='';
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protected $iCSIMtarget='';
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protected $iCSIMWinTarget='';
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private $iBoxType = 1; // Which variant of filled box around text we want
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// for __get, __set
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private $_margin;
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private $_font_size=8; // old. 12
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//---------------
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// CONSTRUCTOR
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// Create new text at absolute pixel coordinates
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public function __construct($aTxt="", $aXAbsPos=0, $aYAbsPos=0)
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{
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if (! is_string($aTxt)) {
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JpGraphError::RaiseL(25050);//('First argument to Text::Text() must be s atring.');
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}
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$this->t = $aTxt;
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$this->x = round($aXAbsPos);
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$this->y = round($aYAbsPos);
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$this->margin = 0;
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}
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//---------------
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// PUBLIC METHODS
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// Set the string in the text object
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public function Set($aTxt)
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{
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$this->t = $aTxt;
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}
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// Alias for Pos()
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public function SetPos($aXAbsPos=0, $aYAbsPos=0, $aHAlign="left", $aVAlign="top")
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{
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//$this->Pos($aXAbsPos,$aYAbsPos,$aHAlign,$aVAlign);
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$this->x = $aXAbsPos;
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$this->y = $aYAbsPos;
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$this->halign = $aHAlign;
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$this->valign = $aVAlign;
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}
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public function SetScalePos($aX, $aY)
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{
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$this->iScalePosX = $aX;
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$this->iScalePosY = $aY;
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}
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// Specify alignment for the text
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public function Align($aHAlign, $aVAlign="top", $aParagraphAlign="")
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{
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$this->halign = $aHAlign;
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$this->valign = $aVAlign;
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if ($aParagraphAlign != "") {
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$this->paragraph_align = $aParagraphAlign;
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}
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}
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// Alias
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public function SetAlign($aHAlign, $aVAlign="top", $aParagraphAlign="")
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{
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$this->Align($aHAlign, $aVAlign, $aParagraphAlign);
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}
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// Specifies the alignment for a multi line text
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public function ParagraphAlign($aAlign)
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{
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$this->paragraph_align = $aAlign;
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}
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// Specifies the alignment for a multi line text
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public function SetParagraphAlign($aAlign)
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{
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$this->paragraph_align = $aAlign;
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}
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public function SetShadow($aShadowColor='gray', $aShadowWidth=3)
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{
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$this->ishadowwidth=$aShadowWidth;
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$this->shadow=$aShadowColor;
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$this->boxed=true;
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}
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public function SetWordWrap($aCol)
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{
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$this->iWordwrap = $aCol ;
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}
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// Specify that the text should be boxed. fcolor=frame color, bcolor=border color,
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// $shadow=drop shadow should be added around the text.
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public function SetBox($aFrameColor=array(255,255,255), $aBorderColor=array(0,0,0), $aShadowColor=false, $aCornerRadius=4, $aShadowWidth=3)
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{
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if ($aFrameColor === false) {
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$this->boxed=false;
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} else {
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$this->boxed=true;
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}
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$this->fcolor=$aFrameColor;
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$this->bcolor=$aBorderColor;
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// For backwards compatibility when shadow was just true or false
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if ($aShadowColor === true) {
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$aShadowColor = 'gray';
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}
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$this->shadow=$aShadowColor;
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$this->icornerradius=$aCornerRadius;
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$this->ishadowwidth=$aShadowWidth;
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}
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public function SetBox2($aFrameColor=array(255,255,255), $aBorderColor=array(0,0,0), $aShadowColor=false, $aCornerRadius=4, $aShadowWidth=3)
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{
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$this->iBoxType=2;
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$this->SetBox($aFrameColor, $aBorderColor, $aShadowColor, $aCornerRadius, $aShadowWidth);
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}
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// Hide the text
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public function Hide($aHide=true)
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{
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$this->hide=$aHide;
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}
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// This looks ugly since it's not a very orthogonal design
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// but I added this "inverse" of Hide() to harmonize
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// with some classes which I designed more recently (especially)
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// jpgraph_gantt
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public function Show($aShow=true)
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{
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$this->hide=!$aShow;
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}
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// Specify font
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public function SetFont($aFamily, $aStyle=FS_NORMAL, $aSize=10)
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{
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$this->font_family=$aFamily;
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$this->font_style=$aStyle;
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$this->font_size=$aSize;
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}
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// Center the text between $left and $right coordinates
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public function Center($aLeft, $aRight, $aYAbsPos=false)
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{
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$this->x = $aLeft + ($aRight-$aLeft)/2;
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$this->halign = "center";
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if (is_numeric($aYAbsPos)) {
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$this->y = $aYAbsPos;
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}
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}
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// Set text color
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public function SetColor($aColor)
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{
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$this->color = $aColor;
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}
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public function SetAngle($aAngle)
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{
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$this->SetOrientation($aAngle);
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}
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// Orientation of text. Note only TTF fonts can have an arbitrary angle
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public function SetOrientation($aDirection=0)
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{
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if (is_numeric($aDirection)) {
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$this->dir=$aDirection;
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} elseif ($aDirection=="h") {
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$this->dir = 0;
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} elseif ($aDirection=="v") {
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$this->dir = 90;
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} else {
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JpGraphError::RaiseL(25051);
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}//(" Invalid direction specified for text.");
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}
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// Total width of text
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public function GetWidth($aImg)
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{
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$aImg->SetFont($this->font_family, $this->font_style, $this->raw_font_size);
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$w = $aImg->GetTextWidth($this->t, $this->dir);
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return $w;
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}
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// Hight of font
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public function GetFontHeight($aImg)
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{
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$aImg->SetFont($this->font_family, $this->font_style, $this->raw_font_size);
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$h = $aImg->GetFontHeight();
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return $h;
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}
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public function GetTextHeight($aImg)
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{
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$aImg->SetFont($this->font_family, $this->font_style, $this->raw_font_size);
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$h = $aImg->GetTextHeight($this->t, $this->dir);
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return $h;
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}
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public function GetHeight($aImg)
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{
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// Synonym for GetTextHeight()
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$aImg->SetFont($this->font_family, $this->font_style, $this->raw_font_size);
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$h = $aImg->GetTextHeight($this->t, $this->dir);
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return $h;
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}
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// Set the margin which will be interpretated differently depending
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// on the context.
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public function SetMargin($aMarg)
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{
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$this->margin = $aMarg;
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}
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public function StrokeWithScale($aImg, $axscale, $ayscale)
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{
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if ($this->iScalePosX === null || $this->iScalePosY === null) {
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$this->Stroke($aImg);
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} else {
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$this->Stroke(
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$aImg,
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round($axscale->Translate($this->iScalePosX)),
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round($ayscale->Translate($this->iScalePosY))
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);
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}
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}
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public function SetCSIMTarget($aURITarget, $aAlt='', $aWinTarget='')
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{
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$this->iCSIMtarget = $aURITarget;
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$this->iCSIMalt = $aAlt;
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$this->iCSIMWinTarget = $aWinTarget;
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}
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public function GetCSIMareas()
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{
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if ($this->iCSIMtarget !== '') {
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return $this->iCSIMarea;
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} else {
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return '';
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}
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}
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// Display text in image
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public function Stroke($aImg, $x=null, $y=null)
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{
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if ($x !== null) {
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$this->x = round($x);
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}
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if ($y !== null) {
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$this->y = round($y);
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}
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// Insert newlines
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if ($this->iWordwrap > 0) {
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$this->t = wordwrap($this->t, $this->iWordwrap, "\n");
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}
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// If position been given as a fraction of the image size
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// calculate the absolute position
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if ($this->x < 1 && $this->x > 0) {
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$this->x *= $aImg->width;
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}
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if ($this->y < 1 && $this->y > 0) {
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$this->y *= $aImg->height;
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}
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$aImg->PushColor($this->color);
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$aImg->SetFont($this->font_family, $this->font_style, $this->raw_font_size);
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$aImg->SetTextAlign($this->halign, $this->valign);
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if ($this->boxed) {
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if ($this->fcolor=="nofill") {
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$this->fcolor=false;
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}
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$oldweight=$aImg->SetLineWeight(1);
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if ($this->iBoxType == 2 && $this->font_family > FF_FONT2+2) {
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$bbox = $aImg->StrokeBoxedText2(
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$this->x,
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$this->y,
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$this->t,
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$this->dir,
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$this->fcolor,
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$this->bcolor,
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$this->shadow,
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$this->paragraph_align,
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2,
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4,
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$this->icornerradius,
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$this->ishadowwidth
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);
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} else {
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$bbox = $aImg->StrokeBoxedText(
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$this->x,
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$this->y,
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$this->t,
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$this->dir,
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$this->fcolor,
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$this->bcolor,
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$this->shadow,
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$this->paragraph_align,
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3,
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3,
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$this->icornerradius,
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$this->ishadowwidth
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);
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}
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$aImg->SetLineWeight($oldweight);
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} else {
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$debug=false;
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$bbox = $aImg->StrokeText($this->x, $this->y, $this->t, $this->dir, $this->paragraph_align, $debug);
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}
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// Create CSIM targets
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$coords = $bbox[0].','.$bbox[1].','.$bbox[2].','.$bbox[3].','.$bbox[4].','.$bbox[5].','.$bbox[6].','.$bbox[7];
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$this->iCSIMarea = "<area shape=\"poly\" coords=\"$coords\" href=\"".htmlentities($this->iCSIMtarget)."\" ";
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if (trim($this->iCSIMalt) != '') {
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$this->iCSIMarea .= " alt=\"".$this->iCSIMalt."\" ";
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$this->iCSIMarea .= " title=\"".$this->iCSIMalt."\" ";
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}
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if (trim($this->iCSIMWinTarget) != '') {
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$this->iCSIMarea .= " target=\"".$this->iCSIMWinTarget."\" ";
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}
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$this->iCSIMarea .= " />\n";
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$aImg->PopColor($this->color);
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}
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public function __get($name)
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{
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if (strpos($name, 'raw_') !== false) {
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// if $name == 'raw_left_margin' , return $this->_left_margin;
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$variable_name = '_' . str_replace('raw_', '', $name);
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return $this->$variable_name;
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}
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$variable_name = '_' . $name;
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if (isset($this->$variable_name)) {
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return $this->$variable_name * SUPERSAMPLING_SCALE;
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} else {
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JpGraphError::RaiseL('25132', $name);
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}
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}
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public function __set($name, $value)
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{
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$this->{'_'.$name} = $value;
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}
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} // Class
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