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327 lines
11 KiB
327 lines
11 KiB
<?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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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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