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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>Ritorno a capo e colori</title>
<link type="text/css" rel="stylesheet" href="../fpdf.css">
</head>
<body>
<h1>Ritorno a capo e colori</h1>
Continuiamo con un esempio in cui si stampano paragrafi giustificati. Si illustra anche l'uso
dei colori.
<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">{
function </span>Header<span class="kw">()
{
global </span>$title<span class="kw">;
</span><span class="cmt">// Arial bold 15
</span>$<span class="kw">this-></span>SetFont<span class="kw">(</span><span class="str">'Arial'</span><span class="kw">,</span><span class="str">'B'</span><span class="kw">,</span>15<span class="kw">);
</span><span class="cmt">// Calculate width of title and position
</span>$w <span class="kw">= </span>$<span class="kw">this-></span>GetStringWidth<span class="kw">(</span>$title<span class="kw">)+</span>6<span class="kw">;
</span>$<span class="kw">this-></span>SetX<span class="kw">((</span>210<span class="kw">-</span>$w<span class="kw">)/</span>2<span class="kw">);
</span><span class="cmt">// Colors of frame, background and text
</span>$<span class="kw">this-></span>SetDrawColor<span class="kw">(</span>0<span class="kw">,</span>80<span class="kw">,</span>180<span class="kw">);
</span>$<span class="kw">this-></span>SetFillColor<span class="kw">(</span>230<span class="kw">,</span>230<span class="kw">,</span>0<span class="kw">);
</span>$<span class="kw">this-></span>SetTextColor<span class="kw">(</span>220<span class="kw">,</span>50<span class="kw">,</span>50<span class="kw">);
</span><span class="cmt">// Thickness of frame (1 mm)
</span>$<span class="kw">this-></span>SetLineWidth<span class="kw">(</span>1<span class="kw">);
</span><span class="cmt">// Title
</span>$<span class="kw">this-></span>Cell<span class="kw">(</span>$w<span class="kw">,</span>9<span class="kw">,</span>$title<span class="kw">,</span>1<span class="kw">,</span>1<span class="kw">,</span><span class="str">'C'</span><span class="kw">,</span>true<span class="kw">);
</span><span class="cmt">// Line break
</span>$<span class="kw">this-></span>Ln<span class="kw">(</span>10<span class="kw">);
}
function </span>Footer<span class="kw">()
{
</span><span class="cmt">// Position at 1.5 cm from bottom
</span>$<span class="kw">this-></span>SetY<span class="kw">(-</span>15<span class="kw">);
</span><span class="cmt">// Arial italic 8
</span>$<span class="kw">this-></span>SetFont<span class="kw">(</span><span class="str">'Arial'</span><span class="kw">,</span><span class="str">'I'</span><span class="kw">,</span>8<span class="kw">);
</span><span class="cmt">// Text color in gray
</span>$<span class="kw">this-></span>SetTextColor<span class="kw">(</span>128<span class="kw">);
</span><span class="cmt">// Page number
</span>$<span class="kw">this-></span>Cell<span class="kw">(</span>0<span class="kw">,</span>10<span class="kw">,</span><span class="str">'Page '</span><span class="kw">.</span>$<span class="kw">this-></span>PageNo<span class="kw">(),</span>0<span class="kw">,</span>0<span class="kw">,</span><span class="str">'C'</span><span class="kw">);
}
function </span>ChapterTitle<span class="kw">(</span>$num<span class="kw">, </span>$label<span class="kw">)
{
</span><span class="cmt">// Arial 12
</span>$<span class="kw">this-></span>SetFont<span class="kw">(</span><span class="str">'Arial'</span><span class="kw">,</span><span class="str">''</span><span class="kw">,</span>12<span class="kw">);
</span><span class="cmt">// Background color
</span>$<span class="kw">this-></span>SetFillColor<span class="kw">(</span>200<span class="kw">,</span>220<span class="kw">,</span>255<span class="kw">);
</span><span class="cmt">// Title
</span>$<span class="kw">this-></span>Cell<span class="kw">(</span>0<span class="kw">,</span>6<span class="kw">,</span><span class="str">"Chapter </span>$num<span class="str"> : </span>$label<span class="str">"</span><span class="kw">,</span>0<span class="kw">,</span>1<span class="kw">,</span><span class="str">'L'</span><span class="kw">,</span>true<span class="kw">);
</span><span class="cmt">// Line break
</span>$<span class="kw">this-></span>Ln<span class="kw">(</span>4<span class="kw">);
}
function </span>ChapterBody<span class="kw">(</span>$file<span class="kw">)
{
</span><span class="cmt">// Read text file
</span>$txt <span class="kw">= </span>file_get_contents<span class="kw">(</span>$file<span class="kw">);
</span><span class="cmt">// Times 12
</span>$<span class="kw">this-></span>SetFont<span class="kw">(</span><span class="str">'Times'</span><span class="kw">,</span><span class="str">''</span><span class="kw">,</span>12<span class="kw">);
</span><span class="cmt">// Output justified text
</span>$<span class="kw">this-></span>MultiCell<span class="kw">(</span>0<span class="kw">,</span>5<span class="kw">,</span>$txt<span class="kw">);
</span><span class="cmt">// Line break
</span>$<span class="kw">this-></span>Ln<span class="kw">();
</span><span class="cmt">// Mention in italics
</span>$<span class="kw">this-></span>SetFont<span class="kw">(</span><span class="str">''</span><span class="kw">,</span><span class="str">'I'</span><span class="kw">);
</span>$<span class="kw">this-></span>Cell<span class="kw">(</span>0<span class="kw">,</span>5<span class="kw">,</span><span class="str">'(end of excerpt)'</span><span class="kw">);
}
function </span>PrintChapter<span class="kw">(</span>$num<span class="kw">, </span>$title<span class="kw">, </span>$file<span class="kw">)
{
</span>$<span class="kw">this-></span>AddPage<span class="kw">();
</span>$<span class="kw">this-></span>ChapterTitle<span class="kw">(</span>$num<span class="kw">,</span>$title<span class="kw">);
</span>$<span class="kw">this-></span>ChapterBody<span class="kw">(</span>$file<span class="kw">);
}
}
</span>$pdf <span class="kw">= new </span>PDF<span class="kw">();
</span>$title <span class="kw">= </span><span class="str">'20000 Leagues Under the Seas'</span><span class="kw">;
</span>$pdf<span class="kw">-></span>SetTitle<span class="kw">(</span>$title<span class="kw">);
</span>$pdf<span class="kw">-></span>SetAuthor<span class="kw">(</span><span class="str">'Jules Verne'</span><span class="kw">);
</span>$pdf<span class="kw">-></span>PrintChapter<span class="kw">(</span>1<span class="kw">,</span><span class="str">'A RUNAWAY REEF'</span><span class="kw">,</span><span class="str">'20k_c1.txt'</span><span class="kw">);
</span>$pdf<span class="kw">-></span>PrintChapter<span class="kw">(</span>2<span class="kw">,</span><span class="str">'THE PROS AND CONS'</span><span class="kw">,</span><span class="str">'20k_c2.txt'</span><span class="kw">);
</span>$pdf<span class="kw">-></span>Output<span class="kw">();
</span>?></code></pre>
</div>
<p class='demo'><a href='tuto3.php' target='_blank' class='demo'>[Demo]</a></p>
Il metodo <a href='../doc/getstringwidth.htm'>GetStringWidth()</a> permette di determinare la lunghezza di una stringa nel font corrente,
qui utilizzata per calcolare la posizione e la larghezza della cornice che circonda il titolo.
Quando i colori sono impostati (attraverso <a href='../doc/setdrawcolor.htm'>SetDrawColor()</a>, <a href='../doc/setfillcolor.htm'>SetFillColor()</a> e <a href='../doc/settextcolor.htm'>SetTextColor()</a>) e lo
spessore della linea impostata ad 1 mm (invece che 0.2 di predefinito) con <a href='../doc/setlinewidth.htm'>SetLineWidth()</a>. Alla fine
si mostra la cella (l'ultimo parametro a <code>true</code> indica che lo sfondo deve essere riempito).
<br>
<br>
Il metodo utilizzato per stampare i paragrafi <a href='../doc/multicell.htm'>MultiCell()</a>. Ogni volta che una riga raggiunge
l'estremit destra della cella, o se si raggiunge un ritorno a capo, si lancia un'interruzione di riga
e si crea automaticamente una nuova cella creata sotto quella precedente. Il testo giustificato in maniera
predefinita.
<br>
<br>
Si definiscono due propriet del documento: il titolo (<a href='../doc/settitle.htm'>SetTitle()</a>) e l'autore (<a href='../doc/setauthor.htm'>SetAuthor()</a>).
Ci sono molti modi per mostrarli in un riproduttore di PDF. Il primo modo aprire direttamente il PDF
con il lettore PDF e visualizzare le propriet del documento, spesso attraverso il men File. A volte si pu anche
fare click con il tasto destro e selezionare Propriet del documento (o qualcosa del genere). Un altro modo di premere
la combinazione Ctrl+D.
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