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