/framework/experimental/graphic/GraphicHardBrokenLine.php
PHP | 302 lines | 128 code | 33 blank | 141 comment | 13 complexity | aa585fa85e7631798de9109fab639033 MD5 | raw file
1<?php 2class GraphicHardBrokenLine extends GraphicObject 3{ 4 var $members; 5 var $alignment; 6 var $lineSpacing; 7 var $doneDrawing; 8 var $topIndent; 9 var $bottomIndent; 10 11 function GraphicHardBrokenLine() 12 { 13 $this->members = array(); 14 $this->alignment = 'left'; 15 $this->doneDrawing = 0; 16 } 17 18 function getUnwrappedWidth() 19 { 20 $total = 0; 21 for($curMember = 0; $curMember < count($this->members); $curMember++) 22 { 23// echo get_class($this->members[$curMember]); 24 $total += $this->members[$curMember]->getUnwrappedWidth(); 25 } 26 return $total; 27 } 28 29 function setBottomIndent($indent) 30 { 31 $this->bottomIndent = $indent; 32 } 33 34 function setLineSpacing($lineSpacing) 35 { 36 $this->lineSpacing = $lineSpacing; 37 } 38 39 function addMember($member) 40 { 41 $this->members[] = $member; 42 } 43 44 function setAlignment($alignment) 45 { 46 $this->alignment = $alignment; 47 } 48 49 function isBreakable() 50 { 51 return $this->members[0]->isBreakable(); 52 } 53 54 function getMinHeight($width) 55 { 56 if($this->isBreakable()) 57 { 58 return $this->members[0]->getMinHeight($width); 59 } 60 else 61 { 62 return $this->getHeight($width); 63 } 64 } 65 66 function doneDrawing() 67 { 68 return $this->doneDrawing; 69 } 70 71 function forcePageBreak() 72 { 73 return $this->members[0]->forcePageBreak(); 74 } 75 76 function draw($x, $y, $width, $reallyDraw = 1) 77 { 78 // echo "drawing hard broken line: $x, $y, $width, $reallyDraw<br>"; 79 80 // $width += 20; 81 82 // if there is nothing in it then just return 0 83 if(count($this->members) == 0) 84 return 0; 85 86 /* 87 // if this is not an inline item then it should be all by itself and we 88 // need to just draw it and return 89 if( !$this->members[0]->isInline() ) 90 { 91 assert( count($this->members[0]) == 1); 92 93 switch($this->alignment) 94 { 95 case 'left': 96 $curx = $x; 97 break; 98 case 'center': 99 $curx = $x + (($width - $this->members[0]->getWidth()) / 2); 100 break; 101 case 'right': 102 $curx = $x + $width - $this->members[0]->getWidth(); 103 break; 104 default: 105 trigger_error('invalid alignment specified: ' . $this->alignment); 106 break; 107 } 108 109 $height = $this->members[0]->draw($curx, $y, $width, $reallyDraw); 110 111 $this->doneDrawing = $this->members[0]->doneDrawing(); 112 113 return $height; 114 } 115 */ 116 assert($this->members[0]->isInline()); 117 118 // 119 // this is a series of one or more inline items 120 // we need to draw them all and wrap them to the width 121 // 122 123 // 124 // break everything up into soft broken lines 125 // 126 127 $curMemberNumber = 0; 128 $lines = array(); 129 $curLine = 0; 130 //$lines[$curLine] = &new GraphicSoftBrokenLine(); 131 $curPos = 0; 132 $remainingWidth = $width; 133 134 while($curMemberNumber < count($this->members)) 135 { 136 // get and verify the current member 137 $curMember = $this->members[$curMemberNumber]; 138 assert(is_a($curMember, 'GraphicTextRun')); 139 140 // figure out how much if any of this member will fit onto the current line 141 $fitsLength = $curMember->getFitsLength($curPos, $remainingWidth); 142 // echo "$curPos, $remainingWidth $fitsLength<br>"; 143 assert($curMember->getLength() >= $curPos + $fitsLength); 144 145 // if it all fits add it to the soft broken line, bump the member number and continue from the top 146 if($curPos + $fitsLength == $curMember->getLength()) 147 { 148 if(!isset($lines[$curLine])) 149 $lines[$curLine] = &new GraphicSoftBrokenLine(); 150 151 $lines[$curLine]->addEntry($curMember, $curPos, $fitsLength); 152 $remainingWidth -= $curMember->getPartWidth($curPos, $fitsLength); 153 $curMemberNumber++; 154 $curPos = 0; 155 } 156 157 // if only part fits, add that part, bump the line number and continue from the top 158 else if($fitsLength > 0) 159 { 160 if(!isset($lines[$curLine])) 161 $lines[$curLine] = &new GraphicSoftBrokenLine(); 162 163 $lines[$curLine]->addEntry($curMember, $curPos, $fitsLength); 164 $curPos += $fitsLength; 165 166 $curLine++; 167 $remainingWidth = $width; 168 // if($this->bottomIndent) 169 // $remainingWidth -= $this->bottomIndent; 170 } 171 172 // if none fits bump the line number and continue from the top 173 else 174 { 175 if($remainingWidth == $width) 176 trigger_error("single word will not fit in space"); 177 178 $curLine++; 179 $remainingWidth = $width; 180 } 181 } 182 183 /* 184 while(true) 185 { 186 // if everything is already handled then just break out of the loop 187 if($curMember >= count($this->members)) 188 break; 189 190 // figure out how much of this member will fit onto the current line 191 $fitsLength = $this->members[$curMember]->getFitsLength($curPos, $remainingWidth); 192 193 // if the whole thing fits on the line 194 if($curPos + $fitsLength >= $this->members[$curMember]->getLength()) 195 { 196 // if this is the first item on the line then first create the line 197 if(!isset($lines[$curLine])) 198 $lines[$curLine] = &new GraphicSoftBrokenLine(); 199 200 $lines[$curLine]->addEntry($this->members[$curMember], $curPos, $fitsLength); 201 202 $remainingWidth -= $this->members[$curMember]->getPartWidth($curPos, $fitsLength); 203 $curMember++; 204 $curPos = 0; 205 } 206 // if it doesn't all fit but some fits 207 else if($fitsLength > 0) 208 { 209 // if this is the first item on the line then first create the line 210 if(!isset($lines[$curLine])) 211 $lines[$curLine] = &new GraphicSoftBrokenLine(); 212 213 $lines[$curLine]->addEntry($this->members[$curMember], $curPos, $fitsLength); 214 $curPos += $fitsLength; 215 216 $curLine++; 217 $remainingWidth = $width; 218 if($this->bottomIndent) 219 $remainingWidth -= $this->bottomIndent; 220 } 221 // if none of it will fit??? 222 else 223 { 224 echo "$curPos $fitsLength " . $this->members[$curMember]->getLength() . "<br>"; 225 BUG("This should never happen. Most likely you are trying to squish some text into to small of a space"); 226 die(); 227 $curLine++; 228 $remainingWidth = $width; 229 } 230 231 } 232 233 // 234 // now draw each of the lines 235 // 236 237 $cury = $y; 238 //if($reallyDraw) 239 // echo 'soft lines = ' . count($lines) . '<br>'; 240 foreach($lines as $lineKey => $dummyLine) 241 { 242 $thisLine = &$lines[$lineKey]; 243 244 switch($this->alignment) 245 { 246 case 'left': 247 $curx = $x; 248 if($this->bottomIndent && $lineKey > 0) 249 $curx += $this->bottomIndent; 250 break; 251 case 'center': 252 $curx = $x + ( ($width - $thisLine->getWidth()) / 2 ); 253 break; 254 case 'right': 255 $curx = $x + ( $width - $thisLine->getWidth() ); 256 break; 257 default: 258 trigger_error('invalid alignment specified: ' . $this->alignment); 259 break; 260 } 261 262 263 $thisLine->draw($curx, $cury, 0, $reallyDraw); 264 265 $cury += $thisLine->getHeight(0) + $this->lineSpacing; 266 } 267 268 269 $this->doneDrawing = 1; 270 return $cury - $y; 271 */ 272 273 $cury = $y; 274 foreach(array_keys($lines) as $lineKey) 275 { 276 $thisLine = $lines[$lineKey]; 277 $curx = $x; 278 $cury += 12; 279 $thisLine->draw($curx, $cury, NULL, $reallyDraw); 280 } 281 282 return $cury - $y; 283 } 284 285 public function drawRenderTree($indentLevel = 0) 286 { 287 $tabs = ''; 288 for($i = 0; $i < $indentLevel; $i++) 289 $tabs .= ' '; 290 291 // draw the open tag 292 echo $tabs . '<' . get_class($this) . '><br>'; 293 294 foreach(array_keys($this->members) as $lineKey) 295 { 296 $this->members[$lineKey]->drawRenderTree($indentLevel + 1); 297 } 298 299 // draw the close tag 300 echo $tabs . '</' . get_class($this) . '><br>'; 301 } 302}