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  16         <h1>eVaf Tutorial</h1>
  17
  18         <h2>10 - GUI Module</h2>
  19
  20         <p>Create the <tt>gui.cpp</tt> file in the <tt>src/apps/PswGen/GUI</tt> directory:</p>
  21
  22         <pre class="hl"><span class="hl com">/**</span>
  23 <span class="hl com"> * &#64;file PswGen/GUI/gui.cpp</span>
  24 <span class="hl com"> */</span>
  25
  26 <span class="hl ppc">#include</span> <span class="hl pps">&quot;gui.h&quot;</span><span class="hl ppc"></span>
  27
  28 <span class="hl ppc">#include &lt;QtGui&gt;</span></pre>
  29
  30         <p>Copy version information files from the <tt>Storage</tt> module:</p>
  31
  32         <pre>evaf/src/apps/PswGen/GUI $ <code>cp ../Storage/version.{h,rc} .</code></pre>
  33
  34         <p>Modify the <tt>version.h</tt> file:</p>
  35
  36         <pre class="hl"><span class="hl com">/**</span>
  37 <span class="hl com"> * &#64;file PswGen/GUI/version.h</span>
  38 <span class="hl com"> */</span>
  39
  40 <span class="hl ppc">#ifndef __PSWGEN_GUI_VERSION_H</span>
  41 <span class="hl ppc">#  define __PSWGEN_GUI_VERSION_H</span>
  42
  43 <span class="hl ppc">#include &lt;version_rc.h&gt;</span>
  44
  45 <span class="hl com">/**</span>
  46 <span class="hl com"> * Module/library version number in the form major,minor,release,build</span>
  47 <span class="hl com"> */</span>
  48 <span class="hl ppc">#define VER_FILE_VERSION                0,1,1,1</span>
  49
  50 <span class="hl com">/**</span>
  51 <span class="hl com"> * Module/library version number in the string format (shall end with \0)</span>
  52 <span class="hl com"> */</span>
  53 <span class="hl ppc">#define VER_FILE_VERSION_STR</span>            <span class="hl pps">&quot;0.1.1.2\0&quot;</span><span class="hl ppc"></span>
  54
  55 <span class="hl com">/**</span>
  56 <span class="hl com"> * Module/library name (shall end with \0)</span>
  57 <span class="hl com"> */</span>
  58 <span class="hl ppc">#define VER_MODULE_NAME_STR</span>             <span class="hl pps">&quot;PswGui\0&quot;</span><span class="hl ppc"></span>
  59
  60 <span class="hl com">/**</span>
  61 <span class="hl com"> * Module type (see version_rc.h for all the types)</span>
  62 <span class="hl com"> */</span>
  63 <span class="hl ppc">#define VER_MODULE_TYPE                 MT_GENERIC</span>
  64
  65 <span class="hl com">/**</span>
  66 <span class="hl com"> * Module type in the string format (see version_rc for all the types)</span>
  67 <span class="hl com"> */</span>
  68 <span class="hl ppc">#define VER_MODULE_TYPE_STR             MT_GENERIC</span>
  69
  70 <span class="hl com">/**</span>
  71 <span class="hl com"> * Original file name for windows (shall end with \0)</span>
  72 <span class="hl com"> */</span>
  73 <span class="hl ppc">#define VER_ORIGINAL_FILE_NAME_STR</span>      <span class="hl pps">&quot;PswGui.dll\0&quot;</span><span class="hl ppc"></span>
  74
  75 <span class="hl com">/**</span>
  76 <span class="hl com"> * Description of the module/library (shall end with \0)</span>
  77 <span class="hl com"> */</span>
  78 <span class="hl ppc">#define VER_FILE_DESCRIPTION_STR</span>         <span class="hl pps">&quot;User interface for the PswGen application.\0&quot;</span><span class="hl ppc"></span>
  79
  80 <span class="hl ppc">#endif</span> <span class="hl slc">// version.h</span><span class="hl ppc"></span></pre>
  81
  82         <p>Include the <tt>version.h</tt> header file in the <tt>gui.cpp</tt> file and export version information:</p>
  83
  84         <pre class="hl"><span class="hl ppc">#include</span> <span class="hl pps">&quot;version.h&quot;</span><span class="hl ppc"></span>
  85 <span class="hl kwd">VER_EXPORT_VERSION_INFO</span><span class="hl opt">()</span></pre>
  86
  87         <p>Use the <tt>Q_EXPORT_PLUGIN2()</tt> macro to make it a Qt plugin:</p>
  88
  89         <pre class="hl"><span class="hl kwd">Q_EXPORT_PLUGIN2</span><span class="hl opt">(</span>VER_MODULE_NAME_STR<span class="hl opt">,</span> eVaf<span class="hl opt">::</span>PswGen<span class="hl opt">::</span>GUI<span class="hl opt">::</span>Module<span class="hl opt">)</span></pre>
  90
  91         <p>The main job of setting up the user interface is done in the <tt>init()</tt> function and our constructor and destructor are
  92         very simple:</p>
  93
  94         <pre class="hl">Module<span class="hl opt">::</span><span class="hl kwd">Module</span><span class="hl opt">()</span>
  95     <span class="hl opt">:</span> Plugins<span class="hl opt">::</span><span class="hl kwd">iPlugin</span><span class="hl opt">()</span>
  96     <span class="hl opt">,</span> <span class="hl kwd">mReady</span><span class="hl opt">(</span><span class="hl kwa">false</span><span class="hl opt">)</span>
  97     <span class="hl opt">,</span> <span class="hl kwd">mGenerator</span><span class="hl opt">(</span><span class="hl num">0</span><span class="hl opt">)</span>
  98     <span class="hl opt">,</span> <span class="hl kwd">mStorage</span><span class="hl opt">(</span><span class="hl num">0</span><span class="hl opt">)</span>
  99 <span class="hl opt">{</span>
 100     <span class="hl kwd">setObjectName</span><span class="hl opt">(</span><span class="hl kwd">QString</span><span class="hl opt">(</span><span class="hl str">&quot;%1.%2&quot;</span><span class="hl opt">).</span><span class="hl kwd">arg</span><span class="hl opt">(</span>VER_MODULE_NAME_STR<span class="hl opt">).</span><span class="hl kwd">arg</span><span class="hl opt">(</span>__FUNCTION__<span class="hl opt">));</span>
 101
 102     <span class="hl kwd">EVAF_INFO</span><span class="hl opt">(</span><span class="hl str">&quot;%s created&quot;</span><span class="hl opt">,</span> <span class="hl kwd">qPrintable</span><span class="hl opt">(</span><span class="hl kwd">objectName</span><span class="hl opt">()));</span>
 103 <span class="hl opt">}</span>
 104
 105 Module<span class="hl opt">::~</span><span class="hl kwd">Module</span><span class="hl opt">()</span>
 106 <span class="hl opt">{</span>
 107     <span class="hl kwd">EVAF_INFO</span><span class="hl opt">(</span><span class="hl str">&quot;%s destroyed&quot;</span><span class="hl opt">,</span> <span class="hl kwd">qPrintable</span><span class="hl opt">(</span><span class="hl kwd">objectName</span><span class="hl opt">()));</span>
 108 <span class="hl opt">}</span></pre>
 109
 110         <p>The <tt>init()</tt> function:</p>
 111
 112         <ol>
 113             <li>Queries and stores interfaces implemented in other modules. The <tt>iGenerator</tt> interface must be implemented;
 114             the <tt>iStorage</tt> interface is optional and we can work without it.</li>
 115             <li>Gets the main window interface <tt>iSdiWindow</tt>.</li>
 116             <li>Creates the layout for the main window widget and adds our widgets to the layout.</li>
 117             <li>Connects signals on widgets to slots in this class.</li>
 118             <li>Uses actions <tt>QAction</tt> to add keyboard shortcuts -- <tt>Enter</tt> key generates a password and <tt>Esc</tt> key
 119             quits the application.</li>
 120             <li>Sets the <tt>mReady</tt> flag to true when all this is done.</li>
 121         </ol>
 122
 123         <pre class="hl"><span class="hl kwb">bool</span> Module<span class="hl opt">::</span><span class="hl kwd">init</span><span class="hl opt">(</span>QString <span class="hl kwb">const</span> <span class="hl opt">&amp;</span> args<span class="hl opt">)</span>
 124 <span class="hl opt">{</span>
 125     <span class="hl kwd">Q_UNUSED</span><span class="hl opt">(</span>args<span class="hl opt">);</span>
 126
 127     <span class="hl slc">// Get the iGenerator interface</span>
 128     <span class="hl kwd">EVAF_TEST_X</span><span class="hl opt">((</span>mGenerator <span class="hl opt">=</span> evafQueryInterface<span class="hl opt">&lt;</span>PswGen<span class="hl opt">::</span>iGenerator<span class="hl opt">&gt;(</span><span class="hl str">&quot;iGenerator&quot;</span><span class="hl opt">)),</span> <span class="hl str">&quot;No iGenerator interface&quot;</span><span class="hl opt">);</span>
 129
 130     <span class="hl slc">// Get the iStorage interface (can be null)</span>
 131     mStorage <span class="hl opt">=</span> evafQueryInterface<span class="hl opt">&lt;</span>PswGen<span class="hl opt">::</span>iStorage<span class="hl opt">&gt;(</span><span class="hl str">&quot;iStorage&quot;</span><span class="hl opt">);</span>
 132     <span class="hl kwa">if</span> <span class="hl opt">(!</span>mStorage<span class="hl opt">)</span>
 133         <span class="hl kwd">EVAF_WARNING</span><span class="hl opt">(</span><span class="hl str">&quot;No iStorage interface&quot;</span><span class="hl opt">);</span>
 134
 135     <span class="hl slc">// Get the main window interface and fill it with widgets</span>
 136     SdiWindow<span class="hl opt">::</span>iSdiWindow <span class="hl opt">*</span> win <span class="hl opt">=</span> evafQueryInterface<span class="hl opt">&lt;</span>SdiWindow<span class="hl opt">::</span>iSdiWindow<span class="hl opt">&gt;(</span><span class="hl str">&quot;iSdiWindow&quot;</span><span class="hl opt">);</span>
 137     <span class="hl kwd">EVAF_TEST_X</span><span class="hl opt">(</span>win<span class="hl opt">,</span> <span class="hl str">&quot;No iSdiWindow interface&quot;</span><span class="hl opt">);</span>
 138
 139     QVBoxLayout <span class="hl opt">*</span> v <span class="hl opt">=</span> <span class="hl kwa">new</span> QVBoxLayout<span class="hl opt">;</span>
 140     win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">()-&gt;</span><span class="hl kwd">setLayout</span><span class="hl opt">(</span>v<span class="hl opt">);</span>
 141
 142     QGridLayout <span class="hl opt">*</span> g <span class="hl opt">=</span> <span class="hl kwa">new</span> QGridLayout<span class="hl opt">;</span>
 143     v<span class="hl opt">-&gt;</span><span class="hl kwd">addLayout</span><span class="hl opt">(</span>g<span class="hl opt">);</span>
 144     g<span class="hl opt">-&gt;</span><span class="hl kwd">setColumnStretch</span><span class="hl opt">(</span><span class="hl num">2</span><span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">);</span>
 145
 146     QLabel <span class="hl opt">*</span> l <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QLabel</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;Master &amp;password:&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 147     l<span class="hl opt">-&gt;</span><span class="hl kwd">setAlignment</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>AlignRight<span class="hl opt">);</span>
 148     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>l<span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">);</span>
 149
 150     wMasterPassword <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 151     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">);</span>
 152     <span class="hl kwd">connect</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString<span class="hl opt">)),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString<span class="hl opt">)));</span>
 153     wMasterPassword<span class="hl opt">-&gt;</span><span class="hl kwd">setEchoMode</span><span class="hl opt">(</span>QLineEdit<span class="hl opt">::</span>Password<span class="hl opt">);</span>
 154     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">);</span>
 155
 156     l <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QLabel</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;Web site or application &amp;name:&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 157     l<span class="hl opt">-&gt;</span><span class="hl kwd">setAlignment</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>AlignRight<span class="hl opt">);</span>
 158     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>l<span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">);</span>
 159
 160     wName <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 161     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 162     <span class="hl kwa">if</span> <span class="hl opt">(</span>mStorage<span class="hl opt">) {</span>
 163         QCompleter <span class="hl opt">*</span> completer <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QCompleter</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 164         completer<span class="hl opt">-&gt;</span><span class="hl kwd">setModel</span><span class="hl opt">(</span>mStorage<span class="hl opt">-&gt;</span><span class="hl kwd">autoCompletionModel</span><span class="hl opt">());</span>
 165         completer<span class="hl opt">-&gt;</span><span class="hl kwd">setCompletionMode</span><span class="hl opt">(</span>QCompleter<span class="hl opt">::</span>InlineCompletion<span class="hl opt">);</span>
 166         wName<span class="hl opt">-&gt;</span><span class="hl kwd">setCompleter</span><span class="hl opt">(</span>completer<span class="hl opt">);</span>
 167     <span class="hl opt">}</span>
 168     <span class="hl kwd">connect</span><span class="hl opt">(</span>wName<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString<span class="hl opt">)),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString<span class="hl opt">)));</span>
 169     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wName<span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">);</span>
 170     win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">()-&gt;</span><span class="hl kwd">setFocusProxy</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 171
 172     l <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QLabel</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;&amp;Length of the password:&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 173     l<span class="hl opt">-&gt;</span><span class="hl kwd">setAlignment</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>AlignRight<span class="hl opt">);</span>
 174     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>l<span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">);</span>
 175
 176     wLength <span class="hl opt">=</span> <span class="hl kwa">new</span> QSpinBox<span class="hl opt">;</span>
 177     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wLength<span class="hl opt">);</span>
 178     wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setRange</span><span class="hl opt">(</span><span class="hl num">0</span><span class="hl opt">,</span> mGenerator<span class="hl opt">-&gt;</span><span class="hl kwd">maxLength</span><span class="hl opt">());</span>
 179     wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setValue</span><span class="hl opt">(</span>DefaultPasswordLength<span class="hl opt">);</span>
 180     wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setSpecialValueText</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;Maximum&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 181     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wLength<span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">);</span>
 182
 183     l <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QLabel</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;Password:&quot;</span><span class="hl opt">));</span>
 184     l<span class="hl opt">-&gt;</span><span class="hl kwd">setAlignment</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>AlignRight<span class="hl opt">);</span>
 185     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>l<span class="hl opt">,</span> <span class="hl num">3</span><span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">);</span>
 186
 187     wPassword <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 188     wPassword<span class="hl opt">-&gt;</span><span class="hl kwd">setReadOnly</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 189     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wPassword<span class="hl opt">,</span> <span class="hl num">3</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">);</span>
 190
 191     v<span class="hl opt">-&gt;</span><span class="hl kwd">addStretch</span><span class="hl opt">();</span>
 192
 193     QHBoxLayout <span class="hl opt">*</span> h <span class="hl opt">=</span> <span class="hl kwa">new</span> QHBoxLayout<span class="hl opt">;</span>
 194     h<span class="hl opt">-&gt;</span><span class="hl kwd">addStretch</span><span class="hl opt">();</span>
 195     v<span class="hl opt">-&gt;</span><span class="hl kwd">addLayout</span><span class="hl opt">(</span>h<span class="hl opt">);</span>
 196
 197     wGenerate <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QPushButton</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;&amp;Generate&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 198     wGenerate<span class="hl opt">-&gt;</span><span class="hl kwd">setDisabled</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 199     wGenerate<span class="hl opt">-&gt;</span><span class="hl kwd">setDefault</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 200     <span class="hl kwd">connect</span><span class="hl opt">(</span>wGenerate<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">clicked</span><span class="hl opt">()),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">generateClicked</span><span class="hl opt">()));</span>
 201     h<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wGenerate<span class="hl opt">);</span>
 202
 203     wCopy <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QPushButton</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;&amp;Copy to Clipboard&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 204     wCopy<span class="hl opt">-&gt;</span><span class="hl kwd">setDisabled</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 205     <span class="hl kwd">connect</span><span class="hl opt">(</span>wCopy<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">clicked</span><span class="hl opt">()),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">copyClicked</span><span class="hl opt">()));</span>
 206     h<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wCopy<span class="hl opt">);</span>
 207
 208     QAction <span class="hl opt">*</span> a <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QAction</span><span class="hl opt">(</span>win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">());</span>
 209     a<span class="hl opt">-&gt;</span><span class="hl kwd">setShortcut</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>Key_Return<span class="hl opt">);</span>
 210     <span class="hl kwd">connect</span><span class="hl opt">(</span>a<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">triggered</span><span class="hl opt">()),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">generateClicked</span><span class="hl opt">()));</span>
 211     win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">()-&gt;</span><span class="hl kwd">addAction</span><span class="hl opt">(</span>a<span class="hl opt">);</span>
 212
 213     a <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QAction</span><span class="hl opt">(</span>win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">());</span>
 214     a<span class="hl opt">-&gt;</span><span class="hl kwd">setShortcut</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>Key_Escape<span class="hl opt">);</span>
 215     <span class="hl kwd">connect</span><span class="hl opt">(</span>a<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">triggered</span><span class="hl opt">()),</span> qApp<span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">quit</span><span class="hl opt">()));</span>
 216     win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">()-&gt;</span><span class="hl kwd">addAction</span><span class="hl opt">(</span>a<span class="hl opt">);</span>
 217
 218     mReady <span class="hl opt">=</span> <span class="hl kwa">true</span><span class="hl opt">;</span>
 219
 220     <span class="hl kwd">EVAF_INFO</span><span class="hl opt">(</span><span class="hl str">&quot;%s initialized&quot;</span><span class="hl opt">,</span> <span class="hl kwd">qPrintable</span><span class="hl opt">(</span><span class="hl kwd">objectName</span><span class="hl opt">()));</span>
 221
 222     <span class="hl kwa">return true</span><span class="hl opt">;</span>
 223 <span class="hl opt">}</span></pre>
 224
 225         <p>The <tt>done()</tt> function simply sets the <tt>mReady</tt> flag back to <tt>false</tt>:</p>
 226
 227         <pre class="hl"><span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">done</span><span class="hl opt">()</span>
 228 <span class="hl opt">{</span>
 229     mReady <span class="hl opt">=</span> <span class="hl kwa">false</span><span class="hl opt">;</span>
 230
 231     <span class="hl kwd">EVAF_INFO</span><span class="hl opt">(</span><span class="hl str">&quot;%s finalized&quot;</span><span class="hl opt">,</span> <span class="hl kwd">qPrintable</span><span class="hl opt">(</span><span class="hl kwd">objectName</span><span class="hl opt">()));</span>
 232 <span class="hl opt">}</span></pre>
 233
 234         <p>The <tt>Generate</tt> push button is disabled by default. We connected <tt>textChanged()</tt> signals to the <tt>textChanged()</tt> slot, where we enable the <tt>Generate</tt> push button if master password and name fields are not empty.</p>
 235
 236         <p>We can also query for stored passwords and update fields on the window with data from the storage. The <tt>iStorage::query()</tt>
 237         method can return an empty shared data pointer and we have to check for it before using fields in the shared data object.</p>
 238
 239         <pre class="hl"><span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString <span class="hl kwb">const</span> <span class="hl opt">&amp;)</span>
 240 <span class="hl opt">{</span>
 241     wGenerate<span class="hl opt">-&gt;</span><span class="hl kwd">setDisabled</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">() ||</span> wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">());</span>
 242     <span class="hl kwa">if</span> <span class="hl opt">(!</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">() &amp;&amp;</span> mStorage<span class="hl opt">) {</span>
 243         QExplicitlySharedDataPointer<span class="hl opt">&lt;</span>PswGen<span class="hl opt">::</span>Storage<span class="hl opt">::</span>Data<span class="hl opt">&gt;</span> data <span class="hl opt">=</span> mStorage<span class="hl opt">-&gt;</span><span class="hl kwd">query</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">());</span>
 244         <span class="hl kwa">if</span> <span class="hl opt">(</span>data<span class="hl opt">)</span>
 245             wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setValue</span><span class="hl opt">(</span>data<span class="hl opt">-&gt;</span><span class="hl kwd">length</span><span class="hl opt">());</span>
 246     <span class="hl opt">}</span>
 247 <span class="hl opt">}</span></pre>
 248
 249         <p>The <tt>generateClicked()</tt> slot is connected to the <tt>Generate</tt> push button and also to the <tt>Enter</tt> key
 250         action. The push button is disabled if master password or name fields are empty, but not the <tt>Enter</tt> key action and
 251         we need to check for it once more.</p>
 252
 253         <p>Then we generate the password using the <tt>iGenerator::generatePassword()</tt> method and show it on the window. We also
 254         enable the <tt>Copy to Clipboard</tt> push button.</p>
 255
 256         <p>If we have the <tt>iStorage</tt>, we either store the new data record or update an existing one in the storage.</p>
 257
 258         <pre class="hl"><span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">generateClicked</span><span class="hl opt">()</span>
 259 <span class="hl opt">{</span>
 260     <span class="hl kwa">if</span> <span class="hl opt">(</span>wMasterPassword<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">() ||</span> wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">())</span>
 261         <span class="hl kwa">return</span><span class="hl opt">;</span>
 262     wPassword<span class="hl opt">-&gt;</span><span class="hl kwd">setText</span><span class="hl opt">(</span>mGenerator<span class="hl opt">-&gt;</span><span class="hl kwd">generatePassword</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">(),</span> wMasterPassword<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">(),</span> wLength<span class="hl opt">-&gt;</span><span class="hl kwd">value</span><span class="hl opt">()));</span>
 263     wCopy<span class="hl opt">-&gt;</span><span class="hl kwd">setEnabled</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 264     <span class="hl kwa">if</span> <span class="hl opt">(</span>mStorage<span class="hl opt">) {</span>
 265         QExplicitlySharedDataPointer<span class="hl opt">&lt;</span>PswGen<span class="hl opt">::</span>Storage<span class="hl opt">::</span>Data<span class="hl opt">&gt;</span> data <span class="hl opt">=</span> mStorage<span class="hl opt">-&gt;</span><span class="hl kwd">query</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">());</span>
 266         <span class="hl kwa">if</span> <span class="hl opt">(!</span>data<span class="hl opt">)</span>
 267             data <span class="hl opt">=</span> <span class="hl kwa">new</span> Storage<span class="hl opt">::</span><span class="hl kwd">Data</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">(),</span> wLength<span class="hl opt">-&gt;</span><span class="hl kwd">value</span><span class="hl opt">());</span>
 268         <span class="hl kwa">else</span>
 269             data<span class="hl opt">-&gt;</span><span class="hl kwd">setLength</span><span class="hl opt">(</span>wLength<span class="hl opt">-&gt;</span><span class="hl kwd">value</span><span class="hl opt">());</span>
 270         mStorage<span class="hl opt">-&gt;</span><span class="hl kwd">save</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">(),</span> data<span class="hl opt">);</span>
 271     <span class="hl opt">}</span>
 272 <span class="hl opt">}</span></pre>
 273
 274         <p>The final method in our module is the <tt>copyClicked()</tt> slot, which simply copies anything from the generated password
 275         field to the clipboard:</p>
 276
 277         <pre class="hl"><span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">copyClicked</span><span class="hl opt">()</span>
 278 <span class="hl opt">{</span>
 279     QClipboard <span class="hl opt">*</span> clipboard <span class="hl opt">=</span> QApplication<span class="hl opt">::</span><span class="hl kwd">clipboard</span><span class="hl opt">();</span>
 280     <span class="hl kwa">if</span> <span class="hl opt">(</span>clipboard<span class="hl opt">)</span>
 281         clipboard<span class="hl opt">-&gt;</span><span class="hl kwd">setText</span><span class="hl opt">(</span>wPassword<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">());</span>
 282 <span class="hl opt">}</span></pre>
 283
 284         <p>Here is the final <tt>gui.cpp</tt> file:</p>
 285
 286         <pre class="hl"><span class="hl com">/**</span>
 287 <span class="hl com"> * &#64;file PswGen/GUI/gui.cpp</span>
 288 <span class="hl com"> */</span>
 289
 290 <span class="hl ppc">#include</span> <span class="hl pps">&quot;gui.h&quot;</span><span class="hl ppc"></span>
 291 <span class="hl ppc">#include</span> <span class="hl pps">&quot;version.h&quot;</span><span class="hl ppc"></span>
 292
 293 <span class="hl ppc">#include</span> <span class="hl pps">&quot;Generator/iGenerator&quot;</span><span class="hl ppc"></span>
 294 <span class="hl ppc">#include</span> <span class="hl pps">&quot;Storage/iStorage&quot;</span><span class="hl ppc"></span>
 295
 296 <span class="hl ppc">#include &lt;Common/Globals&gt;</span>
 297 <span class="hl ppc">#include &lt;Common/iLogger&gt;</span>
 298 <span class="hl ppc">#include &lt;Common/iRegistry&gt;</span>
 299 <span class="hl ppc">#include &lt;SdiWindow/iSdiWindow&gt;</span>
 300
 301 <span class="hl ppc">#include &lt;QtGui&gt;</span>
 302
 303 <span class="hl kwd">VER_EXPORT_VERSION_INFO</span><span class="hl opt">()</span>
 304 <span class="hl kwd">Q_EXPORT_PLUGIN2</span><span class="hl opt">(</span>VER_MODULE_NAME_STR<span class="hl opt">,</span> eVaf<span class="hl opt">::</span>PswGen<span class="hl opt">::</span>GUI<span class="hl opt">::</span>Module<span class="hl opt">)</span>
 305
 306 <span class="hl kwa">using namespace</span> eVaf<span class="hl opt">;</span>
 307 <span class="hl kwa">using namespace</span> eVaf<span class="hl opt">::</span>PswGen<span class="hl opt">::</span>GUI<span class="hl opt">;</span>
 308
 309 <span class="hl kwb">int const</span> Module<span class="hl opt">::</span>DefaultPasswordLength <span class="hl opt">=</span> <span class="hl num">16</span><span class="hl opt">;</span>
 310
 311 Module<span class="hl opt">::</span><span class="hl kwd">Module</span><span class="hl opt">()</span>
 312     <span class="hl opt">:</span> Plugins<span class="hl opt">::</span><span class="hl kwd">iPlugin</span><span class="hl opt">()</span>
 313     <span class="hl opt">,</span> <span class="hl kwd">mReady</span><span class="hl opt">(</span><span class="hl kwa">false</span><span class="hl opt">)</span>
 314     <span class="hl opt">,</span> <span class="hl kwd">mGenerator</span><span class="hl opt">(</span><span class="hl num">0</span><span class="hl opt">)</span>
 315     <span class="hl opt">,</span> <span class="hl kwd">mStorage</span><span class="hl opt">(</span><span class="hl num">0</span><span class="hl opt">)</span>
 316 <span class="hl opt">{</span>
 317     <span class="hl kwd">setObjectName</span><span class="hl opt">(</span><span class="hl kwd">QString</span><span class="hl opt">(</span><span class="hl str">&quot;%1.%2&quot;</span><span class="hl opt">).</span><span class="hl kwd">arg</span><span class="hl opt">(</span>VER_MODULE_NAME_STR<span class="hl opt">).</span><span class="hl kwd">arg</span><span class="hl opt">(</span>__FUNCTION__<span class="hl opt">));</span>
 318
 319     <span class="hl kwd">EVAF_INFO</span><span class="hl opt">(</span><span class="hl str">&quot;%s created&quot;</span><span class="hl opt">,</span> <span class="hl kwd">qPrintable</span><span class="hl opt">(</span><span class="hl kwd">objectName</span><span class="hl opt">()));</span>
 320 <span class="hl opt">}</span>
 321
 322 Module<span class="hl opt">::~</span><span class="hl kwd">Module</span><span class="hl opt">()</span>
 323 <span class="hl opt">{</span>
 324     <span class="hl kwd">EVAF_INFO</span><span class="hl opt">(</span><span class="hl str">&quot;%s destroyed&quot;</span><span class="hl opt">,</span> <span class="hl kwd">qPrintable</span><span class="hl opt">(</span><span class="hl kwd">objectName</span><span class="hl opt">()));</span>
 325 <span class="hl opt">}</span>
 326
 327 <span class="hl kwb">bool</span> Module<span class="hl opt">::</span><span class="hl kwd">init</span><span class="hl opt">(</span>QString <span class="hl kwb">const</span> <span class="hl opt">&amp;</span> args<span class="hl opt">)</span>
 328 <span class="hl opt">{</span>
 329     <span class="hl kwd">Q_UNUSED</span><span class="hl opt">(</span>args<span class="hl opt">);</span>
 330
 331     <span class="hl slc">// Get the iGenerator interface</span>
 332     <span class="hl kwd">EVAF_TEST_X</span><span class="hl opt">((</span>mGenerator <span class="hl opt">=</span> evafQueryInterface<span class="hl opt">&lt;</span>PswGen<span class="hl opt">::</span>iGenerator<span class="hl opt">&gt;(</span><span class="hl str">&quot;iGenerator&quot;</span><span class="hl opt">)),</span> <span class="hl str">&quot;No iGenerator interface&quot;</span><span class="hl opt">);</span>
 333
 334     <span class="hl slc">// Get the iStorage interface (can be null)</span>
 335     mStorage <span class="hl opt">=</span> evafQueryInterface<span class="hl opt">&lt;</span>PswGen<span class="hl opt">::</span>iStorage<span class="hl opt">&gt;(</span><span class="hl str">&quot;iStorage&quot;</span><span class="hl opt">);</span>
 336     <span class="hl kwa">if</span> <span class="hl opt">(!</span>mStorage<span class="hl opt">)</span>
 337         <span class="hl kwd">EVAF_WARNING</span><span class="hl opt">(</span><span class="hl str">&quot;No iStorage interface&quot;</span><span class="hl opt">);</span>
 338
 339     <span class="hl slc">// Get the main window interface and fill it with the widgets</span>
 340     SdiWindow<span class="hl opt">::</span>iSdiWindow <span class="hl opt">*</span> win <span class="hl opt">=</span> evafQueryInterface<span class="hl opt">&lt;</span>SdiWindow<span class="hl opt">::</span>iSdiWindow<span class="hl opt">&gt;(</span><span class="hl str">&quot;iSdiWindow&quot;</span><span class="hl opt">);</span>
 341     <span class="hl kwd">EVAF_TEST_X</span><span class="hl opt">(</span>win<span class="hl opt">,</span> <span class="hl str">&quot;No iSdiWindow interface&quot;</span><span class="hl opt">);</span>
 342
 343     QVBoxLayout <span class="hl opt">*</span> v <span class="hl opt">=</span> <span class="hl kwa">new</span> QVBoxLayout<span class="hl opt">;</span>
 344     win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">()-&gt;</span><span class="hl kwd">setLayout</span><span class="hl opt">(</span>v<span class="hl opt">);</span>
 345
 346     QGridLayout <span class="hl opt">*</span> g <span class="hl opt">=</span> <span class="hl kwa">new</span> QGridLayout<span class="hl opt">;</span>
 347     v<span class="hl opt">-&gt;</span><span class="hl kwd">addLayout</span><span class="hl opt">(</span>g<span class="hl opt">);</span>
 348     g<span class="hl opt">-&gt;</span><span class="hl kwd">setColumnStretch</span><span class="hl opt">(</span><span class="hl num">2</span><span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">);</span>
 349
 350     QLabel <span class="hl opt">*</span> l <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QLabel</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;Master &amp;password:&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 351     l<span class="hl opt">-&gt;</span><span class="hl kwd">setAlignment</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>AlignRight<span class="hl opt">);</span>
 352     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>l<span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">);</span>
 353
 354     wMasterPassword <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 355     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">);</span>
 356     <span class="hl kwd">connect</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString<span class="hl opt">)),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString<span class="hl opt">)));</span>
 357     wMasterPassword<span class="hl opt">-&gt;</span><span class="hl kwd">setEchoMode</span><span class="hl opt">(</span>QLineEdit<span class="hl opt">::</span>Password<span class="hl opt">);</span>
 358     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">);</span>
 359
 360     l <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QLabel</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;Web site or application &amp;name:&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 361     l<span class="hl opt">-&gt;</span><span class="hl kwd">setAlignment</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>AlignRight<span class="hl opt">);</span>
 362     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>l<span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">);</span>
 363
 364     wName <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 365     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 366     <span class="hl kwa">if</span> <span class="hl opt">(</span>mStorage<span class="hl opt">) {</span>
 367         QCompleter <span class="hl opt">*</span> completer <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QCompleter</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 368         completer<span class="hl opt">-&gt;</span><span class="hl kwd">setModel</span><span class="hl opt">(</span>mStorage<span class="hl opt">-&gt;</span><span class="hl kwd">autoCompletionModel</span><span class="hl opt">());</span>
 369         completer<span class="hl opt">-&gt;</span><span class="hl kwd">setCompletionMode</span><span class="hl opt">(</span>QCompleter<span class="hl opt">::</span>InlineCompletion<span class="hl opt">);</span>
 370         wName<span class="hl opt">-&gt;</span><span class="hl kwd">setCompleter</span><span class="hl opt">(</span>completer<span class="hl opt">);</span>
 371     <span class="hl opt">}</span>
 372     <span class="hl kwd">connect</span><span class="hl opt">(</span>wName<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString<span class="hl opt">)),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString<span class="hl opt">)));</span>
 373     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wName<span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">);</span>
 374     win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">()-&gt;</span><span class="hl kwd">setFocusProxy</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 375
 376     l <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QLabel</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;&amp;Length of the password:&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 377     l<span class="hl opt">-&gt;</span><span class="hl kwd">setAlignment</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>AlignRight<span class="hl opt">);</span>
 378     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>l<span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">);</span>
 379
 380     wLength <span class="hl opt">=</span> <span class="hl kwa">new</span> QSpinBox<span class="hl opt">;</span>
 381     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wLength<span class="hl opt">);</span>
 382     wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setRange</span><span class="hl opt">(</span><span class="hl num">0</span><span class="hl opt">,</span> mGenerator<span class="hl opt">-&gt;</span><span class="hl kwd">maxLength</span><span class="hl opt">());</span>
 383     wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setValue</span><span class="hl opt">(</span>DefaultPasswordLength<span class="hl opt">);</span>
 384     wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setSpecialValueText</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;Maximum&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 385     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wLength<span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">);</span>
 386
 387     l <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QLabel</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;Password:&quot;</span><span class="hl opt">));</span>
 388     l<span class="hl opt">-&gt;</span><span class="hl kwd">setAlignment</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>AlignRight<span class="hl opt">);</span>
 389     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>l<span class="hl opt">,</span> <span class="hl num">3</span><span class="hl opt">,</span> <span class="hl num">0</span><span class="hl opt">);</span>
 390
 391     wPassword <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 392     wPassword<span class="hl opt">-&gt;</span><span class="hl kwd">setReadOnly</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 393     g<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wPassword<span class="hl opt">,</span> <span class="hl num">3</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">1</span><span class="hl opt">,</span> <span class="hl num">2</span><span class="hl opt">);</span>
 394
 395     v<span class="hl opt">-&gt;</span><span class="hl kwd">addStretch</span><span class="hl opt">();</span>
 396
 397     QHBoxLayout <span class="hl opt">*</span> h <span class="hl opt">=</span> <span class="hl kwa">new</span> QHBoxLayout<span class="hl opt">;</span>
 398     h<span class="hl opt">-&gt;</span><span class="hl kwd">addStretch</span><span class="hl opt">();</span>
 399     v<span class="hl opt">-&gt;</span><span class="hl kwd">addLayout</span><span class="hl opt">(</span>h<span class="hl opt">);</span>
 400
 401     wGenerate <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QPushButton</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;&amp;Generate&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 402     wGenerate<span class="hl opt">-&gt;</span><span class="hl kwd">setDisabled</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 403     wGenerate<span class="hl opt">-&gt;</span><span class="hl kwd">setDefault</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 404     <span class="hl kwd">connect</span><span class="hl opt">(</span>wGenerate<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">clicked</span><span class="hl opt">()),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">generateClicked</span><span class="hl opt">()));</span>
 405     h<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wGenerate<span class="hl opt">);</span>
 406
 407     wCopy <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QPushButton</span><span class="hl opt">(</span><span class="hl kwd">tr</span><span class="hl opt">(</span><span class="hl str">&quot;&amp;Copy to Clipboard&quot;</span><span class="hl opt">,</span> VER_MODULE_NAME_STR<span class="hl opt">));</span>
 408     wCopy<span class="hl opt">-&gt;</span><span class="hl kwd">setDisabled</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 409     <span class="hl kwd">connect</span><span class="hl opt">(</span>wCopy<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">clicked</span><span class="hl opt">()),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">copyClicked</span><span class="hl opt">()));</span>
 410     h<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wCopy<span class="hl opt">);</span>
 411
 412     QAction <span class="hl opt">*</span> a <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QAction</span><span class="hl opt">(</span>win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">());</span>
 413     a<span class="hl opt">-&gt;</span><span class="hl kwd">setShortcut</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>Key_Return<span class="hl opt">);</span>
 414     <span class="hl kwd">connect</span><span class="hl opt">(</span>a<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">triggered</span><span class="hl opt">()),</span> <span class="hl kwa">this</span><span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">generateClicked</span><span class="hl opt">()));</span>
 415     win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">()-&gt;</span><span class="hl kwd">addAction</span><span class="hl opt">(</span>a<span class="hl opt">);</span>
 416
 417     a <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QAction</span><span class="hl opt">(</span>win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">());</span>
 418     a<span class="hl opt">-&gt;</span><span class="hl kwd">setShortcut</span><span class="hl opt">(</span>Qt<span class="hl opt">::</span>Key_Escape<span class="hl opt">);</span>
 419     <span class="hl kwd">connect</span><span class="hl opt">(</span>a<span class="hl opt">,</span> <span class="hl kwd">SIGNAL</span><span class="hl opt">(</span><span class="hl kwd">triggered</span><span class="hl opt">()),</span> qApp<span class="hl opt">,</span> <span class="hl kwd">SLOT</span><span class="hl opt">(</span><span class="hl kwd">quit</span><span class="hl opt">()));</span>
 420     win<span class="hl opt">-&gt;</span><span class="hl kwd">widget</span><span class="hl opt">()-&gt;</span><span class="hl kwd">addAction</span><span class="hl opt">(</span>a<span class="hl opt">);</span>
 421
 422     mReady <span class="hl opt">=</span> <span class="hl kwa">true</span><span class="hl opt">;</span>
 423
 424     <span class="hl kwd">EVAF_INFO</span><span class="hl opt">(</span><span class="hl str">&quot;%s initialized&quot;</span><span class="hl opt">,</span> <span class="hl kwd">qPrintable</span><span class="hl opt">(</span><span class="hl kwd">objectName</span><span class="hl opt">()));</span>
 425
 426     <span class="hl kwa">return true</span><span class="hl opt">;</span>
 427 <span class="hl opt">}</span>
 428
 429 <span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">done</span><span class="hl opt">()</span>
 430 <span class="hl opt">{</span>
 431     mReady <span class="hl opt">=</span> <span class="hl kwa">false</span><span class="hl opt">;</span>
 432
 433     <span class="hl kwd">EVAF_INFO</span><span class="hl opt">(</span><span class="hl str">&quot;%s finalized&quot;</span><span class="hl opt">,</span> <span class="hl kwd">qPrintable</span><span class="hl opt">(</span><span class="hl kwd">objectName</span><span class="hl opt">()));</span>
 434 <span class="hl opt">}</span>
 435
 436 <span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">textChanged</span><span class="hl opt">(</span>QString <span class="hl kwb">const</span> <span class="hl opt">&amp;)</span>
 437 <span class="hl opt">{</span>
 438     wGenerate<span class="hl opt">-&gt;</span><span class="hl kwd">setDisabled</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">() ||</span> wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">());</span>
 439     <span class="hl kwa">if</span> <span class="hl opt">(!</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">() &amp;&amp;</span> mStorage<span class="hl opt">) {</span>
 440         QExplicitlySharedDataPointer<span class="hl opt">&lt;</span>PswGen<span class="hl opt">::</span>Storage<span class="hl opt">::</span>Data<span class="hl opt">&gt;</span> data <span class="hl opt">=</span> mStorage<span class="hl opt">-&gt;</span><span class="hl kwd">query</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">());</span>
 441         <span class="hl kwa">if</span> <span class="hl opt">(</span>data<span class="hl opt">)</span>
 442             wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setValue</span><span class="hl opt">(</span>data<span class="hl opt">-&gt;</span><span class="hl kwd">length</span><span class="hl opt">());</span>
 443     <span class="hl opt">}</span>
 444 <span class="hl opt">}</span>
 445
 446 <span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">generateClicked</span><span class="hl opt">()</span>
 447 <span class="hl opt">{</span>
 448     <span class="hl kwa">if</span> <span class="hl opt">(</span>wMasterPassword<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">() ||</span> wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">().</span><span class="hl kwd">isEmpty</span><span class="hl opt">())</span>
 449         <span class="hl kwa">return</span><span class="hl opt">;</span>
 450     wPassword<span class="hl opt">-&gt;</span><span class="hl kwd">setText</span><span class="hl opt">(</span>mGenerator<span class="hl opt">-&gt;</span><span class="hl kwd">generatePassword</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">(),</span> wMasterPassword<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">(),</span> wLength<span class="hl opt">-&gt;</span><span class="hl kwd">value</span><span class="hl opt">()));</span>
 451     wCopy<span class="hl opt">-&gt;</span><span class="hl kwd">setEnabled</span><span class="hl opt">(</span><span class="hl kwa">true</span><span class="hl opt">);</span>
 452     <span class="hl kwa">if</span> <span class="hl opt">(</span>mStorage<span class="hl opt">) {</span>
 453         QExplicitlySharedDataPointer<span class="hl opt">&lt;</span>PswGen<span class="hl opt">::</span>Storage<span class="hl opt">::</span>Data<span class="hl opt">&gt;</span> data <span class="hl opt">=</span> mStorage<span class="hl opt">-&gt;</span><span class="hl kwd">query</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">());</span>
 454         <span class="hl kwa">if</span> <span class="hl opt">(!</span>data<span class="hl opt">)</span>
 455             data <span class="hl opt">=</span> <span class="hl kwa">new</span> Storage<span class="hl opt">::</span><span class="hl kwd">Data</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">(),</span> wLength<span class="hl opt">-&gt;</span><span class="hl kwd">value</span><span class="hl opt">());</span>
 456         <span class="hl kwa">else</span>
 457             data<span class="hl opt">-&gt;</span><span class="hl kwd">setLength</span><span class="hl opt">(</span>wLength<span class="hl opt">-&gt;</span><span class="hl kwd">value</span><span class="hl opt">());</span>
 458         mStorage<span class="hl opt">-&gt;</span><span class="hl kwd">save</span><span class="hl opt">(</span>wName<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">(),</span> data<span class="hl opt">);</span>
 459     <span class="hl opt">}</span>
 460 <span class="hl opt">}</span>
 461
 462 <span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">copyClicked</span><span class="hl opt">()</span>
 463 <span class="hl opt">{</span>
 464     QClipboard <span class="hl opt">*</span> clipboard <span class="hl opt">=</span> QApplication<span class="hl opt">::</span><span class="hl kwd">clipboard</span><span class="hl opt">();</span>
 465     <span class="hl kwa">if</span> <span class="hl opt">(</span>clipboard<span class="hl opt">)</span>
 466         clipboard<span class="hl opt">-&gt;</span><span class="hl kwd">setText</span><span class="hl opt">(</span>wPassword<span class="hl opt">-&gt;</span><span class="hl kwd">text</span><span class="hl opt">());</span>
 467 <span class="hl opt">}</span></pre>
 468
 469         <p>Build the <a href="pswgen11.html">PswGen application</a>.</p>
 470
 471     </body>
 472 </html>