1 | <?php |
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2 | //======================================================================= |
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3 | // File: JPGRAPH_TEXT.INC.PHP |
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4 | // Description: Class to handle text as object in the graph. |
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5 | // The low level text layout engine is handled by the GD class |
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6 | // Created: 2001-01-08 (Refactored to separate file 2008-08-01) |
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7 | // Ver: $Id: jpgraph_text.inc.php 1844 2009-09-26 17:05:31Z ljp $ |
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8 | // |
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9 | // Copyright (c) Asial Corporation. All rights reserved. |
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10 | //======================================================================== |
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11 | |
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12 | |
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13 | //=================================================== |
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14 | // CLASS Text |
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15 | // Description: Arbitrary text object that can be added to the graph |
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16 | //=================================================== |
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17 | class Text { |
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18 | public $t; |
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19 | public $x=0,$y=0,$halign="left",$valign="top",$color=array(0,0,0); |
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20 | public $hide=false, $dir=0; |
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21 | public $iScalePosY=null,$iScalePosX=null; |
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22 | public $iWordwrap=0; |
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23 | public $font_family=FF_DEFAULT,$font_style=FS_NORMAL; // old. FF_FONT1 |
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24 | protected $boxed=false; // Should the text be boxed |
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25 | protected $paragraph_align="left"; |
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26 | protected $icornerradius=0,$ishadowwidth=3; |
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27 | protected $fcolor='white',$bcolor='black',$shadow=false; |
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28 | protected $iCSIMarea='',$iCSIMalt='',$iCSIMtarget='',$iCSIMWinTarget=''; |
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29 | private $iBoxType = 1; // Which variant of filled box around text we want |
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30 | |
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31 | // for __get, __set |
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32 | private $_margin; |
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33 | private $_font_size=8; // old. 12 |
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34 | |
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35 | //--------------- |
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36 | // CONSTRUCTOR |
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37 | |
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38 | // Create new text at absolute pixel coordinates |
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39 | function __construct($aTxt="",$aXAbsPos=0,$aYAbsPos=0) { |
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40 | if( ! is_string($aTxt) ) { |
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41 | JpGraphError::RaiseL(25050);//('First argument to Text::Text() must be s atring.'); |
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42 | } |
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43 | $this->t = $aTxt; |
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44 | $this->x = round($aXAbsPos); |
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45 | $this->y = round($aYAbsPos); |
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46 | $this->margin = 0; |
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47 | } |
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48 | //--------------- |
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49 | // PUBLIC METHODS |
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50 | // Set the string in the text object |
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51 | function Set($aTxt) { |
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52 | $this->t = $aTxt; |
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53 | } |
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54 | |
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55 | // Alias for Pos() |
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56 | function SetPos($aXAbsPos=0,$aYAbsPos=0,$aHAlign="left",$aVAlign="top") { |
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57 | //$this->Pos($aXAbsPos,$aYAbsPos,$aHAlign,$aVAlign); |
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58 | $this->x = $aXAbsPos; |
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59 | $this->y = $aYAbsPos; |
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60 | $this->halign = $aHAlign; |
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61 | $this->valign = $aVAlign; |
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62 | } |
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63 | |
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64 | function SetScalePos($aX,$aY) { |
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65 | $this->iScalePosX = $aX; |
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66 | $this->iScalePosY = $aY; |
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67 | } |
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68 | |
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69 | // Specify alignment for the text |
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70 | function Align($aHAlign,$aVAlign="top",$aParagraphAlign="") { |
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71 | $this->halign = $aHAlign; |
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72 | $this->valign = $aVAlign; |
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73 | if( $aParagraphAlign != "" ) |
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74 | $this->paragraph_align = $aParagraphAlign; |
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75 | } |
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76 | |
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77 | // Alias |
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78 | function SetAlign($aHAlign,$aVAlign="top",$aParagraphAlign="") { |
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79 | $this->Align($aHAlign,$aVAlign,$aParagraphAlign); |
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80 | } |
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81 | |
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82 | // Specifies the alignment for a multi line text |
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83 | function ParagraphAlign($aAlign) { |
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84 | $this->paragraph_align = $aAlign; |
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85 | } |
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86 | |
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87 | // Specifies the alignment for a multi line text |
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88 | function SetParagraphAlign($aAlign) { |
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89 | $this->paragraph_align = $aAlign; |
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90 | } |
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91 | |
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92 | function SetShadow($aShadowColor='gray',$aShadowWidth=3) { |
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93 | $this->ishadowwidth=$aShadowWidth; |
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94 | $this->shadow=$aShadowColor; |
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95 | $this->boxed=true; |
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96 | } |
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97 | |
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98 | function SetWordWrap($aCol) { |
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99 | $this->iWordwrap = $aCol ; |
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100 | } |
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101 | |
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102 | // Specify that the text should be boxed. fcolor=frame color, bcolor=border color, |
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103 | // $shadow=drop shadow should be added around the text. |
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104 | function SetBox($aFrameColor=array(255,255,255),$aBorderColor=array(0,0,0),$aShadowColor=false,$aCornerRadius=4,$aShadowWidth=3) { |
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105 | if( $aFrameColor === false ) { |
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106 | $this->boxed=false; |
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107 | } |
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108 | else { |
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109 | $this->boxed=true; |
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110 | } |
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111 | $this->fcolor=$aFrameColor; |
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112 | $this->bcolor=$aBorderColor; |
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113 | // For backwards compatibility when shadow was just true or false |
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114 | if( $aShadowColor === true ) { |
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115 | $aShadowColor = 'gray'; |
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116 | } |
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117 | $this->shadow=$aShadowColor; |
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118 | $this->icornerradius=$aCornerRadius; |
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119 | $this->ishadowwidth=$aShadowWidth; |
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120 | } |
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121 | |
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122 | function SetBox2($aFrameColor=array(255,255,255),$aBorderColor=array(0,0,0),$aShadowColor=false,$aCornerRadius=4,$aShadowWidth=3) { |
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123 | $this->iBoxType=2; |
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124 | $this->SetBox($aFrameColor,$aBorderColor,$aShadowColor,$aCornerRadius,$aShadowWidth); |
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125 | } |
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126 | |
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127 | // Hide the text |
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128 | function Hide($aHide=true) { |
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129 | $this->hide=$aHide; |
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130 | } |
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131 | |
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132 | // This looks ugly since it's not a very orthogonal design |
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133 | // but I added this "inverse" of Hide() to harmonize |
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134 | // with some classes which I designed more recently (especially) |
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135 | // jpgraph_gantt |
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136 | function Show($aShow=true) { |
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137 | $this->hide=!$aShow; |
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138 | } |
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139 | |
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140 | // Specify font |
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141 | function SetFont($aFamily,$aStyle=FS_NORMAL,$aSize=10) { |
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142 | $this->font_family=$aFamily; |
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143 | $this->font_style=$aStyle; |
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144 | $this->font_size=$aSize; |
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145 | } |
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146 | |
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147 | // Center the text between $left and $right coordinates |
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148 | function Center($aLeft,$aRight,$aYAbsPos=false) { |
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149 | $this->x = $aLeft + ($aRight-$aLeft )/2; |
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150 | $this->halign = "center"; |
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151 | if( is_numeric($aYAbsPos) ) |
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152 | $this->y = $aYAbsPos; |
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153 | } |
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154 | |
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155 | // Set text color |
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156 | function SetColor($aColor) { |
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157 | $this->color = $aColor; |
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158 | } |
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159 | |
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160 | function SetAngle($aAngle) { |
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161 | $this->SetOrientation($aAngle); |
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162 | } |
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163 | |
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164 | // Orientation of text. Note only TTF fonts can have an arbitrary angle |
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165 | function SetOrientation($aDirection=0) { |
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166 | if( is_numeric($aDirection) ) |
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167 | $this->dir=$aDirection; |
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168 | elseif( $aDirection=="h" ) |
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169 | $this->dir = 0; |
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170 | elseif( $aDirection=="v" ) |
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171 | $this->dir = 90; |
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172 | else |
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173 | JpGraphError::RaiseL(25051);//(" Invalid direction specified for text."); |
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174 | } |
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175 | |
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176 | // Total width of text |
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177 | function GetWidth($aImg) { |
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178 | $aImg->SetFont($this->font_family,$this->font_style,$this->raw_font_size); |
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179 | $w = $aImg->GetTextWidth($this->t,$this->dir); |
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180 | return $w; |
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181 | } |
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182 | |
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183 | // Hight of font |
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184 | function GetFontHeight($aImg) { |
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185 | $aImg->SetFont($this->font_family,$this->font_style,$this->raw_font_size); |
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186 | $h = $aImg->GetFontHeight(); |
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187 | return $h; |
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188 | |
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189 | } |
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190 | |
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191 | function GetTextHeight($aImg) { |
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192 | $aImg->SetFont($this->font_family,$this->font_style,$this->raw_font_size); |
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193 | $h = $aImg->GetTextHeight($this->t,$this->dir); |
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194 | return $h; |
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195 | } |
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196 | |
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197 | function GetHeight($aImg) { |
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198 | // Synonym for GetTextHeight() |
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199 | $aImg->SetFont($this->font_family,$this->font_style,$this->raw_font_size); |
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200 | $h = $aImg->GetTextHeight($this->t,$this->dir); |
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201 | return $h; |
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202 | } |
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203 | |
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204 | // Set the margin which will be interpretated differently depending |
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205 | // on the context. |
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206 | function SetMargin($aMarg) { |
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207 | $this->margin = $aMarg; |
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208 | } |
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209 | |
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210 | function StrokeWithScale($aImg,$axscale,$ayscale) { |
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211 | if( $this->iScalePosX === null || $this->iScalePosY === null ) { |
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212 | $this->Stroke($aImg); |
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213 | } |
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214 | else { |
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215 | $this->Stroke($aImg, |
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216 | round($axscale->Translate($this->iScalePosX)), |
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217 | round($ayscale->Translate($this->iScalePosY))); |
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218 | } |
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219 | } |
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220 | |
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221 | function SetCSIMTarget($aURITarget,$aAlt='',$aWinTarget='') { |
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222 | $this->iCSIMtarget = $aURITarget; |
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223 | $this->iCSIMalt = $aAlt; |
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224 | $this->iCSIMWinTarget = $aWinTarget; |
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225 | } |
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226 | |
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227 | function GetCSIMareas() { |
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228 | if( $this->iCSIMtarget !== '' ) { |
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229 | return $this->iCSIMarea; |
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230 | } |
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231 | else { |
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232 | return ''; |
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233 | } |
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234 | } |
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235 | |
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236 | // Display text in image |
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237 | function Stroke($aImg,$x=null,$y=null) { |
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238 | |
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239 | if( $x !== null ) $this->x = round($x); |
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240 | if( $y !== null ) $this->y = round($y); |
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241 | |
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242 | // Insert newlines |
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243 | if( $this->iWordwrap > 0 ) { |
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244 | $this->t = wordwrap($this->t,$this->iWordwrap,"\n"); |
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245 | } |
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246 | |
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247 | // If position been given as a fraction of the image size |
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248 | // calculate the absolute position |
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249 | if( $this->x < 1 && $this->x > 0 ) $this->x *= $aImg->width; |
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250 | if( $this->y < 1 && $this->y > 0 ) $this->y *= $aImg->height; |
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251 | |
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252 | $aImg->PushColor($this->color); |
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253 | $aImg->SetFont($this->font_family,$this->font_style,$this->raw_font_size); |
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254 | $aImg->SetTextAlign($this->halign,$this->valign); |
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255 | |
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256 | if( $this->boxed ) { |
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257 | if( $this->fcolor=="nofill" ) { |
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258 | $this->fcolor=false; |
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259 | } |
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260 | |
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261 | $oldweight=$aImg->SetLineWeight(1); |
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262 | |
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263 | if( $this->iBoxType == 2 && $this->font_family > FF_FONT2+2 ) { |
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264 | |
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265 | $bbox = $aImg->StrokeBoxedText2($this->x, $this->y, |
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266 | $this->t, $this->dir, |
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267 | $this->fcolor, |
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268 | $this->bcolor, |
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269 | $this->shadow, |
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270 | $this->paragraph_align, |
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271 | 2,4, |
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272 | $this->icornerradius, |
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273 | $this->ishadowwidth); |
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274 | } |
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275 | else { |
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276 | $bbox = $aImg->StrokeBoxedText($this->x,$this->y,$this->t, |
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277 | $this->dir,$this->fcolor,$this->bcolor,$this->shadow, |
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278 | $this->paragraph_align,3,3,$this->icornerradius, |
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279 | $this->ishadowwidth); |
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280 | } |
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281 | |
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282 | $aImg->SetLineWeight($oldweight); |
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283 | } |
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284 | else { |
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285 | $debug=false; |
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286 | $bbox = $aImg->StrokeText($this->x,$this->y,$this->t,$this->dir,$this->paragraph_align,$debug); |
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287 | } |
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288 | |
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289 | // Create CSIM targets |
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290 | $coords = $bbox[0].','.$bbox[1].','.$bbox[2].','.$bbox[3].','.$bbox[4].','.$bbox[5].','.$bbox[6].','.$bbox[7]; |
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291 | $this->iCSIMarea = "<area shape=\"poly\" coords=\"$coords\" href=\"".htmlentities($this->iCSIMtarget)."\" "; |
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292 | if( trim($this->iCSIMalt) != '' ) { |
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293 | $this->iCSIMarea .= " alt=\"".$this->iCSIMalt."\" "; |
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294 | $this->iCSIMarea .= " title=\"".$this->iCSIMalt."\" "; |
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295 | } |
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296 | if( trim($this->iCSIMWinTarget) != '' ) { |
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297 | $this->iCSIMarea .= " target=\"".$this->iCSIMWinTarget."\" "; |
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298 | } |
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299 | $this->iCSIMarea .= " />\n"; |
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300 | |
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301 | $aImg->PopColor($this->color); |
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302 | } |
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303 | |
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304 | function __get($name) { |
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305 | |
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306 | if (strpos($name, 'raw_') !== false) { |
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307 | // if $name == 'raw_left_margin' , return $this->_left_margin; |
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308 | $variable_name = '_' . str_replace('raw_', '', $name); |
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309 | return $this->$variable_name; |
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310 | } |
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311 | |
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312 | $variable_name = '_' . $name; |
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313 | |
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314 | if (isset($this->$variable_name)) { |
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315 | return $this->$variable_name * SUPERSAMPLING_SCALE; |
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316 | } else { |
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317 | JpGraphError::RaiseL('25132', $name); |
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318 | } |
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319 | } |
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320 | |
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321 | function __set($name, $value) { |
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322 | $this->{'_'.$name} = $value; |
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323 | } |
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324 | } // Class |
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325 | |
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326 | |
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327 | ?> |
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