328 lines
11 KiB
PHP
328 lines
11 KiB
PHP
<?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 Co. Ltd. (Asial USA) 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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public $t;
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public $x=0,$y=0,$halign="left",$valign="top",$color=array(0,0,0);
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public $hide=false, $dir=0;
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public $iScalePosY=null,$iScalePosX=null;
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public $iWordwrap=0;
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public $font_family=FF_DEFAULT,$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 $icornerradius=0,$ishadowwidth=3;
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protected $fcolor='white',$bcolor='black',$shadow=false;
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protected $iCSIMarea='',$iCSIMalt='',$iCSIMtarget='',$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 $_font_size=8; // old. 12
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//---------------
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// CONSTRUCTOR
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// Create new text at absolute pixel coordinates
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function __construct($aTxt="",$aXAbsPos=0,$aYAbsPos=0) {
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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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function Set($aTxt) {
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$this->t = $aTxt;
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}
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// Alias for Pos()
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function SetPos($aXAbsPos=0,$aYAbsPos=0,$aHAlign="left",$aVAlign="top") {
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//$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 = $aVAlign;
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}
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function SetScalePos($aX,$aY) {
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$this->iScalePosX = $aX;
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$this->iScalePosY = $aY;
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}
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// Specify alignment for the text
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function Align($aHAlign,$aVAlign="top",$aParagraphAlign="") {
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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 = $aParagraphAlign;
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}
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// Alias
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function SetAlign($aHAlign,$aVAlign="top",$aParagraphAlign="") {
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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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function ParagraphAlign($aAlign) {
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$this->paragraph_align = $aAlign;
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}
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// Specifies the alignment for a multi line text
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function SetParagraphAlign($aAlign) {
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$this->paragraph_align = $aAlign;
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}
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function SetShadow($aShadowColor='gray',$aShadowWidth=3) {
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$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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function SetWordWrap($aCol) {
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$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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// $shadow=drop shadow should be added around the text.
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function SetBox($aFrameColor=array(255,255,255),$aBorderColor=array(0,0,0),$aShadowColor=false,$aCornerRadius=4,$aShadowWidth=3) {
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if( $aFrameColor === false ) {
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$this->boxed=false;
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}
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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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function SetBox2($aFrameColor=array(255,255,255),$aBorderColor=array(0,0,0),$aShadowColor=false,$aCornerRadius=4,$aShadowWidth=3) {
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$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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function Hide($aHide=true) {
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$this->hide=$aHide;
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}
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// This looks ugly since it's not a very orthogonal design
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// but I added this "inverse" of Hide() to harmonize
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// with some classes which I designed more recently (especially)
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// jpgraph_gantt
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function Show($aShow=true) {
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$this->hide=!$aShow;
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}
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// Specify font
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function SetFont($aFamily,$aStyle=FS_NORMAL,$aSize=10) {
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$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 $right coordinates
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function Center($aLeft,$aRight,$aYAbsPos=false) {
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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 = $aYAbsPos;
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}
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// Set text color
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function SetColor($aColor) {
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$this->color = $aColor;
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}
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function SetAngle($aAngle) {
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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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function SetOrientation($aDirection=0) {
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if( is_numeric($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);//(" Invalid direction specified for text.");
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}
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// Total width of text
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function GetWidth($aImg) {
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$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 $w;
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}
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// Hight of font
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function GetFontHeight($aImg) {
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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 $h;
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}
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function GetTextHeight($aImg) {
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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 $h;
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}
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function GetHeight($aImg) {
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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 $h;
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}
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// Set the margin which will be interpretated differently depending
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// on the context.
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function SetMargin($aMarg) {
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$this->margin = $aMarg;
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}
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function StrokeWithScale($aImg,$axscale,$ayscale) {
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if( $this->iScalePosX === null || $this->iScalePosY === null ) {
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$this->Stroke($aImg);
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}
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else {
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$this->Stroke($aImg,
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round($axscale->Translate($this->iScalePosX)),
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round($ayscale->Translate($this->iScalePosY)));
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}
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}
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function SetCSIMTarget($aURITarget,$aAlt='',$aWinTarget='') {
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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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function GetCSIMareas() {
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if( $this->iCSIMtarget !== '' ) {
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return $this->iCSIMarea;
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}
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else {
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return '';
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}
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}
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// Display text in image
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function Stroke($aImg,$x=null,$y=null) {
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if( $x !== null ) $this->x = round($x);
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if( $y !== null ) $this->y = round($y);
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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 ) $this->x *= $aImg->width;
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if( $this->y < 1 && $this->y > 0 ) $this->y *= $aImg->height;
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$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 = $aImg->StrokeBoxedText2($this->x, $this->y,
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$this->t, $this->dir,
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$this->fcolor,
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$this->bcolor,
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$this->shadow,
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$this->paragraph_align,
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2,4,
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$this->icornerradius,
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$this->ishadowwidth);
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}
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else {
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$bbox = $aImg->StrokeBoxedText($this->x,$this->y,$this->t,
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$this->dir,$this->fcolor,$this->bcolor,$this->shadow,
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$this->paragraph_align,3,3,$this->icornerradius,
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$this->ishadowwidth);
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}
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$aImg->SetLineWeight($oldweight);
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}
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else {
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$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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function __get($name) {
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if (strpos($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', $name);
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}
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}
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function __set($name, $value) {
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$this->{'_'.$name} = $value;
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}
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} // Class
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?>
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