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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>Liens et texte en mode flot</title> <link type="text/css" rel="stylesheet" href="../fpdf.css"> </head> <body> <h1>Liens et texte en mode flot</h1> Ce tutoriel explique comment ins�rer des liens (internes et externes) et montre un nouveau mode d'�criture du texte. Il contient �galement un interpr�teur HTML rudimentaire. <div class="source"> <pre><code><?php <span class="kw">require(</span><span class="str">'fpdf.php'</span><span class="kw">); class </span>PDF <span class="kw">extends </span>FPDF <span class="kw">{ protected </span>$B <span class="kw">= </span>0<span class="kw">; protected </span>$I <span class="kw">= </span>0<span class="kw">; protected </span>$U <span class="kw">= </span>0<span class="kw">; protected </span>$HREF <span class="kw">= </span><span class="str">''</span><span class="kw">; function </span>WriteHTML<span class="kw">(</span>$html<span class="kw">) { </span><span class="cmt">// Parseur HTML </span>$html <span class="kw">= </span>str_replace<span class="kw">(</span><span class="str">"\n"</span><span class="kw">,</span><span class="str">' '</span><span class="kw">,</span>$html<span class="kw">); </span>$a <span class="kw">= </span>preg_split<span class="kw">(</span><span class="str">'/<(.*)>/U'</span><span class="kw">,</span>$html<span class="kw">,-</span>1<span class="kw">,</span>PREG_SPLIT_DELIM_CAPTURE<span class="kw">); foreach(</span>$a <span class="kw">as </span>$i<span class="kw">=></span>$e<span class="kw">) { if(</span>$i<span class="kw">%</span>2<span class="kw">==</span>0<span class="kw">) { </span><span class="cmt">// Texte </span><span class="kw">if(</span>$<span class="kw">this-></span>HREF<span class="kw">) </span>$<span class="kw">this-></span>PutLink<span class="kw">(</span>$<span class="kw">this-></span>HREF<span class="kw">,</span>$e<span class="kw">); else </span>$<span class="kw">this-></span>Write<span class="kw">(</span>5<span class="kw">,</span>$e<span class="kw">); } else { </span><span class="cmt">// Balise </span><span class="kw">if(</span>$e<span class="kw">[</span>0<span class="kw">]==</span><span class="str">'/'</span><span class="kw">) </span>$<span class="kw">this-></span>CloseTag<span class="kw">(</span>strtoupper<span class="kw">(</span>substr<span class="kw">(</span>$e<span class="kw">,</span>1<span class="kw">))); else { </span><span class="cmt">// Extraction des attributs </span>$a2 <span class="kw">= </span>explode<span class="kw">(</span><span class="str">' '</span><span class="kw">,</span>$e<span class="kw">); </span>$tag <span class="kw">= </span>strtoupper<span class="kw">(</span>array_shift<span class="kw">(</span>$a2<span class="kw">)); </span>$attr <span class="kw">= array(); foreach(</span>$a2 <span class="kw">as </span>$v<span class="kw">) { if(</span>preg_match<span class="kw">(</span><span class="str">'/([^=]*)=["\']?([^"\']*)/'</span><span class="kw">,</span>$v<span class="kw">,</span>$a3<span class="kw">)) </span>$attr<span class="kw">[</span>strtoupper<span class="kw">(</span>$a3<span class="kw">[</span>1<span class="kw">])] = </span>$a3<span class="kw">[</span>2<span class="kw">]; } </span>$<span class="kw">this-></span>OpenTag<span class="kw">(</span>$tag<span class="kw">,</span>$attr<span class="kw">); } } } } function </span>OpenTag<span class="kw">(</span>$tag<span class="kw">, </span>$attr<span class="kw">) { </span><span class="cmt">// Balise ouvrante </span><span class="kw">if(</span>$tag<span class="kw">==</span><span class="str">'B' </span><span class="kw">|| </span>$tag<span class="kw">==</span><span class="str">'I' </span><span class="kw">|| </span>$tag<span class="kw">==</span><span class="str">'U'</span><span class="kw">) </span>$<span class="kw">this-></span>SetStyle<span class="kw">(</span>$tag<span class="kw">,</span>true<span class="kw">); if(</span>$tag<span class="kw">==</span><span class="str">'A'</span><span class="kw">) </span>$<span class="kw">this-></span>HREF <span class="kw">= </span>$attr<span class="kw">[</span><span class="str">'HREF'</span><span class="kw">]; if(</span>$tag<span class="kw">==</span><span class="str">'BR'</span><span class="kw">) </span>$<span class="kw">this-></span>Ln<span class="kw">(</span>5<span class="kw">); } function </span>CloseTag<span class="kw">(</span>$tag<span class="kw">) { </span><span class="cmt">// Balise fermante </span><span class="kw">if(</span>$tag<span class="kw">==</span><span class="str">'B' </span><span class="kw">|| </span>$tag<span class="kw">==</span><span class="str">'I' </span><span class="kw">|| </span>$tag<span class="kw">==</span><span class="str">'U'</span><span class="kw">) </span>$<span class="kw">this-></span>SetStyle<span class="kw">(</span>$tag<span class="kw">,</span>false<span class="kw">); if(</span>$tag<span class="kw">==</span><span class="str">'A'</span><span class="kw">) </span>$<span class="kw">this-></span>HREF <span class="kw">= </span><span class="str">''</span><span class="kw">; } function </span>SetStyle<span class="kw">(</span>$tag<span class="kw">, </span>$enable<span class="kw">) { </span><span class="cmt">// Modifie le style et s�lectionne la police correspondante </span>$<span class="kw">this-></span>$tag <span class="kw">+= (</span>$enable <span class="kw">? </span>1 <span class="kw">: -</span>1<span class="kw">); </span>$style <span class="kw">= </span><span class="str">''</span><span class="kw">; foreach(array(</span><span class="str">'B'</span><span class="kw">, </span><span class="str">'I'</span><span class="kw">, </span><span class="str">'U'</span><span class="kw">) as </span>$s<span class="kw">) { if(</span>$<span class="kw">this-></span>$s<span class="kw">></span>0<span class="kw">) </span>$style <span class="kw">.= </span>$s<span class="kw">; } </span>$<span class="kw">this-></span>SetFont<span class="kw">(</span><span class="str">''</span><span class="kw">,</span>$style<span class="kw">); } function </span>PutLink<span class="kw">(</span>$URL<span class="kw">, </span>$txt<span class="kw">) { </span><span class="cmt">// Place un hyperlien </span>$<span class="kw">this-></span>SetTextColor<span class="kw">(</span>0<span class="kw">,</span>0<span class="kw">,</span>255<span class="kw">); </span>$<span class="kw">this-></span>SetStyle<span class="kw">(</span><span class="str">'U'</span><span class="kw">,</span>true<span class="kw">); </span>$<span class="kw">this-></span>Write<span class="kw">(</span>5<span class="kw">,</span>$txt<span class="kw">,</span>$URL<span class="kw">); </span>$<span class="kw">this-></span>SetStyle<span class="kw">(</span><span class="str">'U'</span><span class="kw">,</span>false<span class="kw">); </span>$<span class="kw">this-></span>SetTextColor<span class="kw">(</span>0<span class="kw">); } } </span>$html <span class="kw">= </span><span class="str">'Vous pouvez maintenant imprimer facilement du texte m�langeant diff�rents styles : <b>gras</b>, <i>italique</i>, <u>soulign�</u>, ou <b><i><u>tous � la fois</u></i></b> !<br><br>Vous pouvez aussi ins�rer des liens sous forme textuelle, comme <a href="http://www.fpdf.org">www.fpdf.org</a>, ou bien sous forme d\'image : cliquez sur le logo.'</span><span class="kw">; </span>$pdf <span class="kw">= new </span>PDF<span class="kw">(); </span><span class="cmt">// Premi�re page </span>$pdf<span class="kw">-></span>AddPage<span class="kw">(); </span>$pdf<span class="kw">-></span>SetFont<span class="kw">(</span><span class="str">'Arial'</span><span class="kw">,</span><span class="str">''</span><span class="kw">,</span>20<span class="kw">); </span>$pdf<span class="kw">-></span>Write<span class="kw">(</span>5<span class="kw">,</span><span class="str">'Pour d�couvrir les nouveaut�s de ce tutoriel, cliquez '</span><span class="kw">); </span>$pdf<span class="kw">-></span>SetFont<span class="kw">(</span><span class="str">''</span><span class="kw">,</span><span class="str">'U'</span><span class="kw">); </span>$link <span class="kw">= </span>$pdf<span class="kw">-></span>AddLink<span class="kw">(); </span>$pdf<span class="kw">-></span>Write<span class="kw">(</span>5<span class="kw">,</span><span class="str">'ici'</span><span class="kw">,</span>$link<span class="kw">); </span>$pdf<span class="kw">-></span>SetFont<span class="kw">(</span><span class="str">''</span><span class="kw">); </span><span class="cmt">// Seconde page </span>$pdf<span class="kw">-></span>AddPage<span class="kw">(); </span>$pdf<span class="kw">-></span>SetLink<span class="kw">(</span>$link<span class="kw">); </span>$pdf<span class="kw">-></span>Image<span class="kw">(</span><span class="str">'logo.png'</span><span class="kw">,</span>10<span class="kw">,</span>12<span class="kw">,</span>30<span class="kw">,</span>0<span class="kw">,</span><span class="str">''</span><span class="kw">,</span><span class="str">'http://www.fpdf.org'</span><span class="kw">); </span>$pdf<span class="kw">-></span>SetLeftMargin<span class="kw">(</span>45<span class="kw">); </span>$pdf<span class="kw">-></span>SetFontSize<span class="kw">(</span>14<span class="kw">); </span>$pdf<span class="kw">-></span>WriteHTML<span class="kw">(</span>$html<span class="kw">); </span>$pdf<span class="kw">-></span>Output<span class="kw">(); </span>?></code></pre> </div> <p class='demo'><a href='tuto6.php' target='_blank' class='demo'>[D�mo]</a></p> La nouvelle m�thode pour imprimer du texte est <a href='../doc/write.htm'>Write()</a>. Elle est tr�s proche de <a href='../doc/multicell.htm'>MultiCell()</a> ; les diff�rences sont les suivantes : <ul> <li>La fin de ligne est au niveau de la marge droite et la ligne suivante commence � la marge gauche</li> <li>La position courante se d�place juste � la fin du texte</li> </ul> Elle permet donc d'�crire une portion de texte, de modifier la police, puis de reprendre � partir de l'endroit o� on �tait rest�. Par contre on ne peut plus justifier. <br> <br> La m�thode est utilis�e sur la premi�re page pour mettre un lien pointant sur la seconde. Le d�but de la phrase est �crit en style normal, puis on passe en soulign� pour terminer. Le lien est cr�� gr�ce � la m�thode <a href='../doc/addlink.htm'>AddLink()</a>, qui renvoie l'identifiant du lien. Cet identifiant est pass� en troisi�me param�tre � <span style="white-space:nowrap">Write()</span>. Apr�s avoir cr�� la seconde page, on utilise <a href='../doc/setlink.htm'>SetLink()</a> pour faire pointer le lien sur le d�but de la page courante. <br> <br> On place ensuite une image avec un lien externe dessus. Un lien externe est simplement une URL. Elle est transmise en dernier param�tre de <a href='../doc/image.htm'>Image()</a>. <br> <br> Enfin, la marge gauche est d�plac�e apr�s l'image gr�ce � <a href='../doc/setleftmargin.htm'>SetLeftMargin()</a> et du texte au format HTML est imprim�. Un parseur HTML tr�s simple est utilis� pour cela, bas� sur les expressions r�guli�res. Les balises reconnues sont <b>, <i>, <u>, <a> et <br> ; les autres sont ignor�es. Le parseur utilise lui aussi la m�thode Write(). Le lien externe se pose de la m�me fa�on que l'interne (troisi�me param�tre de Write()). A noter que <a href='../doc/cell.htm'>Cell()</a> permet �galement de poser des liens. </body> </html>