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  16         <p>Next: <a href="pswgen11.html">11 - Building GUI Module</a>, Previous: <a href="pswgen09.html">09 - GUI Module</a></p>
  17
  18         <h1>eVaf Tutorial</h1>
  19
  20         <h2>10 - GUI Module</h2>
  21
  22         <p>Create the <tt>gui.cpp</tt> file in the <tt>src/apps/PswGen/GUI</tt> directory:</p>
  23
  24         <pre class="hl"><span class="hl com">/**</span>
  25 <span class="hl com"> * &#64;file PswGen/GUI/gui.cpp</span>
  26 <span class="hl com"> */</span>
  27
  28 <span class="hl ppc">#include</span> <span class="hl pps">&quot;gui.h&quot;</span><span class="hl ppc"></span>
  29
  30 <span class="hl ppc">#include &lt;QtGui&gt;</span></pre>
  31
  32         <p>Copy version information files from the <tt>Storage</tt> module:</p>
  33
  34         <pre>evaf/src/apps/PswGen/GUI $ <code>cp ../Storage/version.{h,rc} .</code></pre>
  35
  36         <p>Modify the <tt>version.h</tt> file:</p>
  37
  38         <pre class="hl"><span class="hl com">/**</span>
  39 <span class="hl com"> * &#64;file PswGen/GUI/version.h</span>
  40 <span class="hl com"> */</span>
  41
  42 <span class="hl ppc">#ifndef __PSWGEN_GUI_VERSION_H</span>
  43 <span class="hl ppc">#  define __PSWGEN_GUI_VERSION_H</span>
  44
  45 <span class="hl ppc">#include &lt;version_rc.h&gt;</span>
  46
  47 <span class="hl com">/**</span>
  48 <span class="hl com"> * Module/library version number in the form major,minor,release,build</span>
  49 <span class="hl com"> */</span>
  50 <span class="hl ppc">#define VER_FILE_VERSION                0,1,1,1</span>
  51
  52 <span class="hl com">/**</span>
  53 <span class="hl com"> * Module/library version number in the string format (shall end with \0)</span>
  54 <span class="hl com"> */</span>
  55 <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>
  56
  57 <span class="hl com">/**</span>
  58 <span class="hl com"> * Module/library name (shall end with \0)</span>
  59 <span class="hl com"> */</span>
  60 <span class="hl ppc">#define VER_MODULE_NAME_STR</span>             <span class="hl pps">&quot;PswGui\0&quot;</span><span class="hl ppc"></span>
  61
  62 <span class="hl com">/**</span>
  63 <span class="hl com"> * Module type (see version_rc.h for all the types)</span>
  64 <span class="hl com"> */</span>
  65 <span class="hl ppc">#define VER_MODULE_TYPE                 MT_GENERIC</span>
  66
  67 <span class="hl com">/**</span>
  68 <span class="hl com"> * Module type in the string format (see version_rc for all the types)</span>
  69 <span class="hl com"> */</span>
  70 <span class="hl ppc">#define VER_MODULE_TYPE_STR             MT_GENERIC</span>
  71
  72 <span class="hl com">/**</span>
  73 <span class="hl com"> * Original file name for windows (shall end with \0)</span>
  74 <span class="hl com"> */</span>
  75 <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>
  76
  77 <span class="hl com">/**</span>
  78 <span class="hl com"> * Description of the module/library (shall end with \0)</span>
  79 <span class="hl com"> */</span>
  80 <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>
  81
  82 <span class="hl ppc">#endif</span> <span class="hl slc">// version.h</span><span class="hl ppc"></span></pre>
  83
  84         <p>Include the <tt>version.h</tt> header file in the <tt>gui.cpp</tt> file and export version information:</p>
  85
  86         <pre class="hl"><span class="hl ppc">#include</span> <span class="hl pps">&quot;version.h&quot;</span><span class="hl ppc"></span>
  87 <span class="hl kwd">VER_EXPORT_VERSION_INFO</span><span class="hl opt">()</span></pre>
  88
  89         <p>Use the <tt>Q_EXPORT_PLUGIN2()</tt> macro to make it a Qt plugin:</p>
  90
  91         <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>
  92
  93         <p>The main job of setting up the user interface is done in the <tt>init()</tt> function and our constructor and destructor are
  94         very simple:</p>
  95
  96         <pre class="hl">Module<span class="hl opt">::</span><span class="hl kwd">Module</span><span class="hl opt">()</span>
  97     <span class="hl opt">:</span> Plugins<span class="hl opt">::</span><span class="hl kwd">iPlugin</span><span class="hl opt">()</span>
  98     <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>
  99     <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>
 100     <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>
 101 <span class="hl opt">{</span>
 102     <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>
 103
 104     <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>
 105 <span class="hl opt">}</span>
 106
 107 Module<span class="hl opt">::~</span><span class="hl kwd">Module</span><span class="hl opt">()</span>
 108 <span class="hl opt">{</span>
 109     <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>
 110 <span class="hl opt">}</span></pre>
 111
 112         <p>The <tt>init()</tt> function:</p>
 113
 114         <ol>
 115             <li>Queries and stores interfaces implemented in other modules. The <tt>iGenerator</tt> interface must be implemented;
 116             the <tt>iStorage</tt> interface is optional and we can work without it.</li>
 117             <li>Gets the main window interface <tt>iSdiWindow</tt>.</li>
 118             <li>Adds our widgets to the main window layout.</li>
 119             <li>Connects signals on widgets to slots in this class.</li>
 120             <li>Uses actions <tt>QAction</tt> to add keyboard shortcuts -- <tt>Enter</tt> key generates a password and <tt>Esc</tt> key
 121             quits the application.</li>
 122             <li>Sets the <tt>mReady</tt> flag to true when all this is done.</li>
 123         </ol>
 124
 125         <p>The main window has an empty <tt>QVBoxLayout</tt> layout and we could add our widgets directly to this layout, but for keyboard
 126         shortcuts to work properly, we need a widget that fills the main window. We create a master widget, add it to the main window
 127         layout and then fill the master widget with other widgets.</p>
 128
 129         <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>
 130 <span class="hl opt">{</span>
 131     <span class="hl kwd">Q_UNUSED</span><span class="hl opt">(</span>args<span class="hl opt">);</span>
 132
 133     <span class="hl slc">// Get the iGenerator interface</span>
 134     <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>
 135
 136     <span class="hl slc">// Get the iStorage interface (can be null)</span>
 137     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>
 138     <span class="hl kwa">if</span> <span class="hl opt">(!</span>mStorage<span class="hl opt">)</span>
 139         <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>
 140
 141     <span class="hl slc">// Get the main window interface and fill it with the widgets</span>
 142     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>
 143     <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>
 144
 145     QWidget <span class="hl opt">*</span> masterWidget <span class="hl opt">=</span> <span class="hl kwa">new</span> QWidget<span class="hl opt">;</span>
 146     win<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>masterWidget<span class="hl opt">);</span>
 147
 148     QVBoxLayout <span class="hl opt">*</span> v <span class="hl opt">=</span> <span class="hl kwa">new</span> QVBoxLayout<span class="hl opt">;</span>
 149     masterWidget<span class="hl opt">-&gt;</span><span class="hl kwd">setLayout</span><span class="hl opt">(</span>v<span class="hl opt">);</span>
 150
 151     QGridLayout <span class="hl opt">*</span> g <span class="hl opt">=</span> <span class="hl kwa">new</span> QGridLayout<span class="hl opt">;</span>
 152     v<span class="hl opt">-&gt;</span><span class="hl kwd">addLayout</span><span class="hl opt">(</span>g<span class="hl opt">);</span>
 153     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>
 154
 155     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>
 156     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>
 157     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>
 158
 159     wMasterPassword <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 160     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">);</span>
 161     <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>
 162     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>
 163     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>
 164
 165     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>
 166     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>
 167     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>
 168
 169     wName <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 170     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 171     <span class="hl kwa">if</span> <span class="hl opt">(</span>mStorage<span class="hl opt">) {</span>
 172         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>
 173         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>
 174         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>
 175         wName<span class="hl opt">-&gt;</span><span class="hl kwd">setCompleter</span><span class="hl opt">(</span>completer<span class="hl opt">);</span>
 176     <span class="hl opt">}</span>
 177     <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>
 178     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>
 179     masterWidget<span class="hl opt">-&gt;</span><span class="hl kwd">setFocusProxy</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 180
 181     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>
 182     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>
 183     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>
 184
 185     wLength <span class="hl opt">=</span> <span class="hl kwa">new</span> QSpinBox<span class="hl opt">;</span>
 186     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wLength<span class="hl opt">);</span>
 187     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>
 188     wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setValue</span><span class="hl opt">(</span>DefaultPasswordLength<span class="hl opt">);</span>
 189     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>
 190     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>
 191
 192     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>
 193     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>
 194     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>
 195
 196     wPassword <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 197     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>
 198     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>
 199
 200     v<span class="hl opt">-&gt;</span><span class="hl kwd">addStretch</span><span class="hl opt">();</span>
 201
 202     QHBoxLayout <span class="hl opt">*</span> h <span class="hl opt">=</span> <span class="hl kwa">new</span> QHBoxLayout<span class="hl opt">;</span>
 203     h<span class="hl opt">-&gt;</span><span class="hl kwd">addStretch</span><span class="hl opt">();</span>
 204     v<span class="hl opt">-&gt;</span><span class="hl kwd">addLayout</span><span class="hl opt">(</span>h<span class="hl opt">);</span>
 205
 206     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>
 207     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>
 208     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>
 209     <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>
 210     h<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wGenerate<span class="hl opt">);</span>
 211
 212     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>
 213     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>
 214     <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>
 215     h<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wCopy<span class="hl opt">);</span>
 216
 217     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>masterWidget<span class="hl opt">);</span>
 218     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>
 219     <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>
 220     masterWidget<span class="hl opt">-&gt;</span><span class="hl kwd">addAction</span><span class="hl opt">(</span>a<span class="hl opt">);</span>
 221
 222     a <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QAction</span><span class="hl opt">(</span>masterWidget<span class="hl opt">);</span>
 223     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>
 224     <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>
 225     masterWidget<span class="hl opt">-&gt;</span><span class="hl kwd">addAction</span><span class="hl opt">(</span>a<span class="hl opt">);</span>
 226
 227     mReady <span class="hl opt">=</span> <span class="hl kwa">true</span><span class="hl opt">;</span>
 228
 229     <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>
 230
 231     <span class="hl kwa">return true</span><span class="hl opt">;</span>
 232 <span class="hl opt">}</span></pre>
 233
 234         <p>The <tt>done()</tt> function simply sets the <tt>mReady</tt> flag back to <tt>false</tt>:</p>
 235
 236         <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>
 237 <span class="hl opt">{</span>
 238     mReady <span class="hl opt">=</span> <span class="hl kwa">false</span><span class="hl opt">;</span>
 239
 240     <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>
 241 <span class="hl opt">}</span></pre>
 242
 243         <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>
 244
 245         <p>We can also query for stored passwords and update fields on the window with data from the storage. The <tt>iStorage::query()</tt>
 246         method can return an empty shared data pointer and we have to check for it before using fields in the shared data object.</p>
 247
 248         <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>
 249 <span class="hl opt">{</span>
 250     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>
 251     <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>
 252         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>
 253         <span class="hl kwa">if</span> <span class="hl opt">(</span>data<span class="hl opt">)</span>
 254             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>
 255     <span class="hl opt">}</span>
 256 <span class="hl opt">}</span></pre>
 257
 258         <p>The <tt>generateClicked()</tt> slot is connected to the <tt>Generate</tt> push button and also to the <tt>Enter</tt> key
 259         action. The push button is disabled if master password or name fields are empty, but not the <tt>Enter</tt> key action and
 260         we need to check for it once more.</p>
 261
 262         <p>Then we generate the password using the <tt>iGenerator::generatePassword()</tt> method and show it on the window. We also
 263         enable the <tt>Copy to Clipboard</tt> push button.</p>
 264
 265         <p>If we have the <tt>iStorage</tt>, we either store the new data record or update an existing one in the storage.</p>
 266
 267         <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>
 268 <span class="hl opt">{</span>
 269     <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>
 270         <span class="hl kwa">return</span><span class="hl opt">;</span>
 271     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>
 272     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>
 273     <span class="hl kwa">if</span> <span class="hl opt">(</span>mStorage<span class="hl opt">) {</span>
 274         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>
 275         <span class="hl kwa">if</span> <span class="hl opt">(!</span>data<span class="hl opt">)</span>
 276             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>
 277         <span class="hl kwa">else</span>
 278             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>
 279         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>
 280     <span class="hl opt">}</span>
 281 <span class="hl opt">}</span></pre>
 282
 283         <p>The final method in our module is the <tt>copyClicked()</tt> slot, which simply copies anything from the generated password
 284         field to the clipboard:</p>
 285
 286         <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>
 287 <span class="hl opt">{</span>
 288     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>
 289     <span class="hl kwa">if</span> <span class="hl opt">(</span>clipboard<span class="hl opt">)</span>
 290         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>
 291 <span class="hl opt">}</span></pre>
 292
 293         <p>Here is the final <tt>gui.cpp</tt> file:</p>
 294
 295         <pre class="hl"><span class="hl com">/**</span>
 296 <span class="hl com"> * &#64;file PswGen/GUI/gui.cpp</span>
 297 <span class="hl com"> */</span>
 298
 299 <span class="hl ppc">#include</span> <span class="hl pps">&quot;gui.h&quot;</span><span class="hl ppc"></span>
 300 <span class="hl ppc">#include</span> <span class="hl pps">&quot;version.h&quot;</span><span class="hl ppc"></span>
 301
 302 <span class="hl ppc">#include</span> <span class="hl pps">&quot;Generator/iGenerator&quot;</span><span class="hl ppc"></span>
 303 <span class="hl ppc">#include</span> <span class="hl pps">&quot;Storage/iStorage&quot;</span><span class="hl ppc"></span>
 304
 305 <span class="hl ppc">#include &lt;Common/Globals&gt;</span>
 306 <span class="hl ppc">#include &lt;Common/iLogger&gt;</span>
 307 <span class="hl ppc">#include &lt;Common/iRegistry&gt;</span>
 308 <span class="hl ppc">#include &lt;SdiWindow/iSdiWindow&gt;</span>
 309
 310 <span class="hl ppc">#include &lt;QtGui&gt;</span>
 311
 312 <span class="hl kwd">VER_EXPORT_VERSION_INFO</span><span class="hl opt">()</span>
 313 <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>
 314
 315 <span class="hl kwa">using namespace</span> eVaf<span class="hl opt">;</span>
 316 <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>
 317
 318 <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>
 319
 320 Module<span class="hl opt">::</span><span class="hl kwd">Module</span><span class="hl opt">()</span>
 321     <span class="hl opt">:</span> Plugins<span class="hl opt">::</span><span class="hl kwd">iPlugin</span><span class="hl opt">()</span>
 322     <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>
 323     <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>
 324     <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>
 325 <span class="hl opt">{</span>
 326     <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>
 327
 328     <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>
 329 <span class="hl opt">}</span>
 330
 331 Module<span class="hl opt">::~</span><span class="hl kwd">Module</span><span class="hl opt">()</span>
 332 <span class="hl opt">{</span>
 333     <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>
 334 <span class="hl opt">}</span>
 335
 336 <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>
 337 <span class="hl opt">{</span>
 338     <span class="hl kwd">Q_UNUSED</span><span class="hl opt">(</span>args<span class="hl opt">);</span>
 339
 340     <span class="hl slc">// Get the iGenerator interface</span>
 341     <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>
 342
 343     <span class="hl slc">// Get the iStorage interface (can be null)</span>
 344     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>
 345     <span class="hl kwa">if</span> <span class="hl opt">(!</span>mStorage<span class="hl opt">)</span>
 346         <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>
 347
 348     <span class="hl slc">// Get the main window interface and fill it with the widgets</span>
 349     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>
 350     <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>
 351
 352     QWidget <span class="hl opt">*</span> masterWidget <span class="hl opt">=</span> <span class="hl kwa">new</span> QWidget<span class="hl opt">;</span>
 353     win<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>masterWidget<span class="hl opt">);</span>
 354
 355     QVBoxLayout <span class="hl opt">*</span> v <span class="hl opt">=</span> <span class="hl kwa">new</span> QVBoxLayout<span class="hl opt">;</span>
 356     masterWidget<span class="hl opt">-&gt;</span><span class="hl kwd">setLayout</span><span class="hl opt">(</span>v<span class="hl opt">);</span>
 357
 358     QGridLayout <span class="hl opt">*</span> g <span class="hl opt">=</span> <span class="hl kwa">new</span> QGridLayout<span class="hl opt">;</span>
 359     v<span class="hl opt">-&gt;</span><span class="hl kwd">addLayout</span><span class="hl opt">(</span>g<span class="hl opt">);</span>
 360     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>
 361
 362     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>
 363     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>
 364     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>
 365
 366     wMasterPassword <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 367     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wMasterPassword<span class="hl opt">);</span>
 368     <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>
 369     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>
 370     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>
 371
 372     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>
 373     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>
 374     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>
 375
 376     wName <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 377     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 378     <span class="hl kwa">if</span> <span class="hl opt">(</span>mStorage<span class="hl opt">) {</span>
 379         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>
 380         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>
 381         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>
 382         wName<span class="hl opt">-&gt;</span><span class="hl kwd">setCompleter</span><span class="hl opt">(</span>completer<span class="hl opt">);</span>
 383     <span class="hl opt">}</span>
 384     <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>
 385     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>
 386     masterWidget<span class="hl opt">-&gt;</span><span class="hl kwd">setFocusProxy</span><span class="hl opt">(</span>wName<span class="hl opt">);</span>
 387
 388     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>
 389     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>
 390     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>
 391
 392     wLength <span class="hl opt">=</span> <span class="hl kwa">new</span> QSpinBox<span class="hl opt">;</span>
 393     l<span class="hl opt">-&gt;</span><span class="hl kwd">setBuddy</span><span class="hl opt">(</span>wLength<span class="hl opt">);</span>
 394     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>
 395     wLength<span class="hl opt">-&gt;</span><span class="hl kwd">setValue</span><span class="hl opt">(</span>DefaultPasswordLength<span class="hl opt">);</span>
 396     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>
 397     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>
 398
 399     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>
 400     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>
 401     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>
 402
 403     wPassword <span class="hl opt">=</span> <span class="hl kwa">new</span> QLineEdit<span class="hl opt">;</span>
 404     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>
 405     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>
 406
 407     v<span class="hl opt">-&gt;</span><span class="hl kwd">addStretch</span><span class="hl opt">();</span>
 408
 409     QHBoxLayout <span class="hl opt">*</span> h <span class="hl opt">=</span> <span class="hl kwa">new</span> QHBoxLayout<span class="hl opt">;</span>
 410     h<span class="hl opt">-&gt;</span><span class="hl kwd">addStretch</span><span class="hl opt">();</span>
 411     v<span class="hl opt">-&gt;</span><span class="hl kwd">addLayout</span><span class="hl opt">(</span>h<span class="hl opt">);</span>
 412
 413     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>
 414     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>
 415     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>
 416     <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>
 417     h<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wGenerate<span class="hl opt">);</span>
 418
 419     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>
 420     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>
 421     <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>
 422     h<span class="hl opt">-&gt;</span><span class="hl kwd">addWidget</span><span class="hl opt">(</span>wCopy<span class="hl opt">);</span>
 423
 424     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>masterWidget<span class="hl opt">);</span>
 425     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>
 426     <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>
 427     masterWidget<span class="hl opt">-&gt;</span><span class="hl kwd">addAction</span><span class="hl opt">(</span>a<span class="hl opt">);</span>
 428
 429     a <span class="hl opt">=</span> <span class="hl kwa">new</span> <span class="hl kwd">QAction</span><span class="hl opt">(</span>masterWidget<span class="hl opt">);</span>
 430     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>
 431     <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>
 432     masterWidget<span class="hl opt">-&gt;</span><span class="hl kwd">addAction</span><span class="hl opt">(</span>a<span class="hl opt">);</span>
 433
 434     mReady <span class="hl opt">=</span> <span class="hl kwa">true</span><span class="hl opt">;</span>
 435
 436     <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>
 437
 438     <span class="hl kwa">return true</span><span class="hl opt">;</span>
 439 <span class="hl opt">}</span>
 440
 441 <span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">done</span><span class="hl opt">()</span>
 442 <span class="hl opt">{</span>
 443     mReady <span class="hl opt">=</span> <span class="hl kwa">false</span><span class="hl opt">;</span>
 444
 445     <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>
 446 <span class="hl opt">}</span>
 447
 448 <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>
 449 <span class="hl opt">{</span>
 450     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>
 451     <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>
 452         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>
 453         <span class="hl kwa">if</span> <span class="hl opt">(</span>data<span class="hl opt">)</span>
 454             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>
 455     <span class="hl opt">}</span>
 456 <span class="hl opt">}</span>
 457
 458 <span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">generateClicked</span><span class="hl opt">()</span>
 459 <span class="hl opt">{</span>
 460     <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>
 461         <span class="hl kwa">return</span><span class="hl opt">;</span>
 462     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>
 463     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>
 464     <span class="hl kwa">if</span> <span class="hl opt">(</span>mStorage<span class="hl opt">) {</span>
 465         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>
 466         <span class="hl kwa">if</span> <span class="hl opt">(!</span>data<span class="hl opt">)</span>
 467             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>
 468         <span class="hl kwa">else</span>
 469             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>
 470         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>
 471     <span class="hl opt">}</span>
 472 <span class="hl opt">}</span>
 473
 474 <span class="hl kwb">void</span> Module<span class="hl opt">::</span><span class="hl kwd">copyClicked</span><span class="hl opt">()</span>
 475 <span class="hl opt">{</span>
 476     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>
 477     <span class="hl kwa">if</span> <span class="hl opt">(</span>clipboard<span class="hl opt">)</span>
 478         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>
 479 <span class="hl opt">}</span></pre>
 480
 481         <p>Build the <a href="pswgen11.html">PswGen application</a>.</p>
 482
 483     </body>
 484 </html>