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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>CBrCtlSampleAppLayoutObserver Class Reference</title><link href="style.css" rel="stylesheet" type="text/css"></head><table border="0" width="100%" height="8" bgcolor="#eeeeee"> <tr> <td width="100%" height="1"><b><font size="2" color="#000000" face="Arial, Helvetica, sans-serif"><strong><a name=Top></a> S60 3rd Edition SDK for Symbian OS </strong></font></b><br><i>Example Applications Guide</i></td></tr> </table><!-- Generated by Doxygen 1.4.5 --><h1>CBrCtlSampleAppLayoutObserver Class Reference</h1><!-- doxytag: class="CBrCtlSampleAppLayoutObserver" --><code>#include <<a class="el" href="_br_ctl_sample_app_layout_observer_8h-source.html">BrCtlSampleAppLayoutObserver.h</a>></code><p><a href="class_c_br_ctl_sample_app_layout_observer-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0"><tr><td></td></tr><tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_br_ctl_sample_app_layout_observer.html#1f5b8e19484ef0b486ea94d5d4e531ee">~CBrCtlSampleAppLayoutObserver</a> ()</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_br_ctl_sample_app_layout_observer.html#9bbc0a5fb947786fbb3d0a999cf21f1d">UpdateBrowserVScrollBarL</a> (TInt aDocumentHeight, TInt aDisplayHeight, TInt aDisplayPosY)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_br_ctl_sample_app_layout_observer.html#9789cd4948dfb24cfe6216452903bafc">UpdateBrowserHScrollBarL</a> (TInt aDocumentWidth, TInt aDisplayWidth, TInt aDisplayPosX)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_br_ctl_sample_app_layout_observer.html#708b734505a0d86668954190c170a740">NotifyLayoutChange</a> (TBrCtlLayout aNewLayout)</td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_br_ctl_sample_app_layout_observer.html#c98cea34681bc42a61e98ba0eafef6ba">UpdateTitleL</a> (const TDesC &aTitle)</td></tr><tr><td colspan="2"><br><h2>Static Public Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">static <a class="el" href="class_c_br_ctl_sample_app_layout_observer.html">CBrCtlSampleAppLayoutObserver</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_br_ctl_sample_app_layout_observer.html#4fd01c832782cfd14178a08789e4d753">NewL</a> (<a class="el" href="class_c_br_ctl_sample_app_container.html">CBrCtlSampleAppContainer</a> *aContainer)</td></tr><tr><td colspan="2"><br><h2>Private Member Functions</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_br_ctl_sample_app_layout_observer.html#1ab13f06c65a5d88cba6c0219ed3d5eb">ConstructL</a> (<a class="el" href="class_c_br_ctl_sample_app_container.html">CBrCtlSampleAppContainer</a> *aContainer)</td></tr><tr><td colspan="2"><br><h2>Private Attributes</h2></td></tr><tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="6dc94c8cd7c107bc61701348814020e6"></a><!-- doxytag: member="CBrCtlSampleAppLayoutObserver::iContainer" ref="6dc94c8cd7c107bc61701348814020e6" args="" --><a class="el" href="class_c_br_ctl_sample_app_container.html">CBrCtlSampleAppContainer</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="class_c_br_ctl_sample_app_layout_observer.html#6dc94c8cd7c107bc61701348814020e6">iContainer</a></td></tr></table><hr><a name="_details"></a><h2>Detailed Description</h2>CBrCtlSampleAppLayoutObserver class. This class inherits from the MBrCtlLayoutObserver interface. Methods on this class will be called when layout events occur. <p><p>Definition at line <a class="el" href="_br_ctl_sample_app_layout_observer_8h-source.html#l00033">33</a> of file <a class="el" href="_br_ctl_sample_app_layout_observer_8h-source.html">BrCtlSampleAppLayoutObserver.h</a>.<hr><h2>Constructor & Destructor Documentation</h2><a class="anchor" name="1f5b8e19484ef0b486ea94d5d4e531ee"></a><!-- doxytag: member="CBrCtlSampleAppLayoutObserver::~CBrCtlSampleAppLayoutObserver" ref="1f5b8e19484ef0b486ea94d5d4e531ee" args="()" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">CBrCtlSampleAppLayoutObserver::~CBrCtlSampleAppLayoutObserver </td> <td class="md" valign="top">( </td> <td class="mdname1" valign="top" nowrap> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Destructor. <p>Definition at line <a class="el" href="_br_ctl_sample_app_layout_observer_8cpp-source.html#l00110">110</a> of file <a class="el" href="_br_ctl_sample_app_layout_observer_8cpp-source.html">BrCtlSampleAppLayoutObserver.cpp</a>.<div class="fragment"><pre class="fragment"><a name="l00111"></a>00111 {<a name="l00112"></a>00112 }</pre></div><p> </td> </tr></table><hr><h2>Member Function Documentation</h2><a class="anchor" name="4fd01c832782cfd14178a08789e4d753"></a><!-- doxytag: member="CBrCtlSampleAppLayoutObserver::NewL" ref="4fd01c832782cfd14178a08789e4d753" args="(CBrCtlSampleAppContainer *aContainer)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top"><a class="el" href="class_c_br_ctl_sample_app_layout_observer.html">CBrCtlSampleAppLayoutObserver</a> * CBrCtlSampleAppLayoutObserver::NewL </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top"><a class="el" href="class_c_br_ctl_sample_app_container.html">CBrCtlSampleAppContainer</a> * </td> <td class="mdname1" valign="top" nowrap> <em>aContainer</em> </td> <td class="md" valign="top"> ) </td> <td class="md" nowrap><code> [static]</code></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Two-phased constructor. <p>Definition at line <a class="el" href="_br_ctl_sample_app_layout_observer_8cpp-source.html#l00119">119</a> of file <a class="el" href="_br_ctl_sample_app_layout_observer_8cpp-source.html">BrCtlSampleAppLayoutObserver.cpp</a>.<div class="fragment"><pre class="fragment"><a name="l00120"></a>00120 {<a name="l00121"></a>00121 <a class="code" href="class_c_br_ctl_sample_app_layout_observer.html">CBrCtlSampleAppLayoutObserver</a>* <span class="keyword">self</span> = <span class="keyword">new</span>(ELeave)<a class="code" href="class_c_br_ctl_sample_app_layout_observer.html">CBrCtlSampleAppLayoutObserver</a>();<a name="l00122"></a>00122 CleanupStack::PushL(<span class="keyword">self</span>);<a name="l00123"></a>00123 <span class="keyword">self</span>->ConstructL(aContainer);<a name="l00124"></a>00124 CleanupStack::Pop();<a name="l00125"></a>00125 <span class="keywordflow">return</span> <span class="keyword">self</span>;<a name="l00126"></a>00126 }</pre></div><p> </td> </tr></table><a class="anchor" name="9bbc0a5fb947786fbb3d0a999cf21f1d"></a><!-- doxytag: member="CBrCtlSampleAppLayoutObserver::UpdateBrowserVScrollBarL" ref="9bbc0a5fb947786fbb3d0a999cf21f1d" args="(TInt aDocumentHeight, TInt aDisplayHeight, TInt aDisplayPosY)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">void CBrCtlSampleAppLayoutObserver::UpdateBrowserVScrollBarL </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">TInt </td> <td class="mdname" nowrap> <em>aDocumentHeight</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>TInt </td> <td class="mdname" nowrap> <em>aDisplayHeight</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>TInt </td> <td class="mdname" nowrap> <em>aDisplayPosY</em></td> </tr> <tr> <td class="md"></td> <td class="md">) </td> <td class="md" colspan="2"></td> </tr> </table> </td> </tr></table><table cellspacing="5" cellpadding="0" border="0"> <tr> <td> </td> <td><p>Update the position of vertical scrollbar. <dl compact><dt><b>Since:</b></dt><dd>2.8 </dd></dl><dl compact><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>aDocumentHeight</em> </td><td>The total height of the markup page </td></tr> <tr><td valign="top"></td><td valign="top"><em>aDisplayHeight</em> </td><td>The height of the display </td></tr> <tr><td valign="top"></td><td valign="top"><em>aDisplayPosY</em> </td><td>The current Y position </td></tr> </table></dl><dl compact><dt><b>Returns:</b></dt><dd>void </dd></dl><p>Definition at line <a class="el" href="_br_ctl_sample_app_layout_observer_8cpp-source.html#l00026">26</a> of file <a class="el" href="_br_ctl_sample_app_layout_observer_8cpp-source.html">BrCtlSampleAppLayoutObserver.cpp</a>.<p>References <a class="el" href="_br_ctl_sample_app_layout_observer_8h-source.html#l00095">iContainer</a>, <a class="el" href="_br_ctl_sample_app_container_8cpp-source.html#l00213">CBrCtlSampleAppContainer::SetPoint()</a>, and <a class="el" href="_br_ctl_sample_app_container_8cpp-source.html#l00203">CBrCtlSampleAppContainer::SetText()</a>.<div class="fragment"><pre class="fragment"><a name="l00029"></a>00029 {<a name="l00030"></a>00030 <span class="comment">// Here we are creating a text string that will be displayed on the screen</span><a name="l00031"></a>00031 <span class="comment">// But if you were implementing this method, you most likely would be implementing</span><a name="l00032"></a>00032 <span class="comment">// your own scroll bars here.</span><a name="l00033"></a>00033 TBuf16<256> tgt;<a name="l00034"></a>00034 TPoint point(0, 220);<a name="l00035"></a>00035 <a name="l00036"></a>00036 _LIT(KUpdateScrollbar, <span class="stringliteral">"Doc Height=%d, Dis Height=%d, Dis Pos=%d"</span>);<a name="l00037"></a>00037 <a name="l00038"></a>00038 tgt.AppendFormat(KUpdateScrollbar, aDocumentHeight, aDisplayHeight, aDisplayPosY);<a name="l00039"></a>00039 <a name="l00040"></a>00040 <a class="code" href="class_c_br_ctl_sample_app_layout_observer.html#6dc94c8cd7c107bc61701348814020e6">iContainer</a>-><a class="code" href="class_c_br_ctl_sample_app_container.html#0d5135f692b821997451b42177b8774e">SetPoint</a>(point);<a name="l00041"></a>00041 <a class="code" href="class_c_br_ctl_sample_app_layout_observer.html#6dc94c8cd7c107bc61701348814020e6">iContainer</a>-><a class="code" href="class_c_br_ctl_sample_app_container.html#a6d697ab177a94bd02bf8b97ed737330">SetText</a>(tgt);<a name="l00042"></a>00042 <a name="l00043"></a>00043 <a class="code" href="class_c_br_ctl_sample_app_layout_observer.html#6dc94c8cd7c107bc61701348814020e6">iContainer</a>->DrawNow();<a name="l00044"></a>00044 }</pre></div><p> </td> </tr></table><a class="anchor" name="9789cd4948dfb24cfe6216452903bafc"></a><!-- doxytag: member="CBrCtlSampleAppLayoutObserver::UpdateBrowserHScrollBarL" ref="9789cd4948dfb24cfe6216452903bafc" args="(TInt aDocumentWidth, TInt aDisplayWidth, TInt aDisplayPosX)" --><p><table class="mdTable" cellpadding="2" cellspacing="0"> <tr> <td class="mdRow"> <table cellpadding="0" cellspacing="0" border="0"> <tr> <td class="md" nowrap valign="top">void CBrCtlSampleAppLayoutObserver::UpdateBrowserHScrollBarL </td> <td class="md" valign="top">( </td> <td class="md" nowrap valign="top">TInt </td> <td class="mdname" nowrap> <em>aDocumentWidth</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td> <td class="md"></td> <td class="md" nowrap>TInt </td> <td class="mdname" nowrap> <em>aDisplayWidth</em>, </td> </tr> <tr> <td class="md" nowrap align="right"></td>⌨️ 快捷键说明
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