Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/txtview_8cpp_source.html
Week 32 contribution of PDK documentation content. See release notes for details. Fixes bug Bug 3582
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<h1>examples/AppFramework/txtshell/txtview.cpp</h1><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">// Copyright (c) 2000-2009 Nokia Corporation and/or its subsidiary(-ies).</span>
<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
<a name="l00007"></a>00007 <span class="comment">//</span>
<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
<a name="l00010"></a>00010 <span class="comment">//</span>
<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
<a name="l00012"></a>00012 <span class="comment">//</span>
<a name="l00013"></a>00013 <span class="comment">// Description:</span>
<a name="l00014"></a>00014 <span class="comment">//</span>
<a name="l00015"></a>00015
<a name="l00016"></a>00016 <span class="preprocessor">#include "txtexamp.h"</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="preprocessor">#include <txtrich.h></span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 CViewControl::~CViewControl()
<a name="l00021"></a>00021 {
<a name="l00022"></a>00022 <span class="keyword">delete</span> iTextView; <span class="comment">// text view</span>
<a name="l00023"></a>00023 <span class="keyword">delete</span> iLayout; <span class="comment">// text layout</span>
<a name="l00024"></a>00024 <span class="keyword">delete</span> iRichText; <span class="comment">// contained text object</span>
<a name="l00025"></a>00025 <span class="keyword">delete</span> iCharFormatLayer; <span class="comment">// char format layer</span>
<a name="l00026"></a>00026 <span class="keyword">delete</span> iParaFormatLayer; <span class="comment">// para format layer</span>
<a name="l00027"></a>00027 <span class="keyword">delete</span> iBitmap; <span class="comment">// line cursor character bitmap</span>
<a name="l00028"></a>00028 }
<a name="l00029"></a>00029
<a name="l00030"></a>00030 <span class="keywordtype">void</span> CViewControl::UpdateModelL()
<a name="l00031"></a>00031 {
<a name="l00032"></a>00032 <span class="comment">// Create all constant literal descriptors used in this function, </span>
<a name="l00033"></a>00033 <span class="comment">// e.g. for message text</span>
<a name="l00034"></a>00034
<a name="l00035"></a>00035 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KText1, <span class="stringliteral">"To be, or not to be, that is the question; \</span>
<a name="l00036"></a>00036 <span class="stringliteral">whether 'tis nobler in the mind to suffer the \</span>
<a name="l00037"></a>00037 <span class="stringliteral">slings and arrows of outrageous fortune, or \</span>
<a name="l00038"></a>00038 <span class="stringliteral">to stand against a sea of troubles, and by \</span>
<a name="l00039"></a>00039 <span class="stringliteral">opposing end them."</span>);
<a name="l00040"></a>00040 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KText4,<span class="stringliteral">"Format band set. Num formatted lines=%d"</span>);
<a name="l00041"></a>00041 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KText5,<span class="stringliteral">"Format band unset. Num formatted lines=%d"</span>);
<a name="l00042"></a>00042 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KPathAndFile,<span class="stringliteral">"\\resource\\apps\\cursors.mbm"</span>);
<a name="l00043"></a>00043 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KCDrive,<span class="stringliteral">"\\"</span>);
<a name="l00044"></a>00044 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KZDrive,<span class="stringliteral">"Z:"</span>);
<a name="l00045"></a>00045 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus0,<span class="stringliteral">"Initialised - with grey fill colour"</span>);
<a name="l00046"></a>00046 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus1,<span class="stringliteral">"Added lots of text"</span>);
<a name="l00047"></a>00047 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus2,<span class="stringliteral">"Selected first paragraph"</span>);
<a name="l00048"></a>00048 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus3,<span class="stringliteral">"Formatted the selected text (and cancelled selection)"</span>);
<a name="l00049"></a>00049 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus6,<span class="stringliteral">"Set 20 pixel line cursor margin and 2 cursors"</span>);
<a name="l00050"></a>00050 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus7,<span class="stringliteral">"Reset the view rectangle - old wrapping still applies"</span>);
<a name="l00051"></a>00051 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus8,<span class="stringliteral">"Text wrapping set to new view rectangle"</span>);
<a name="l00052"></a>00052 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus9,<span class="stringliteral">"View rectangle and wrap width reset"</span>);
<a name="l00053"></a>00053 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus10,<span class="stringliteral">"Horizontal scroll left"</span>);
<a name="l00054"></a>00054 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus11,<span class="stringliteral">"Scrolling DOWN, blank space NOT scrolled"</span>);
<a name="l00055"></a>00055 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus12,<span class="stringliteral">"Back to top and horizontal scroll right"</span>);
<a name="l00056"></a>00056 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatus13,<span class="stringliteral">"Reset();"</span>);
<a name="l00057"></a>00057 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KStatusDefault,<span class="stringliteral">"(overshot!!)"</span>);
<a name="l00058"></a>00058
<a name="l00059"></a>00059 <span class="keywordflow">switch</span> (Phase())
<a name="l00060"></a>00060 {
<a name="l00061"></a>00061 <span class="keywordflow">case</span> 0:
<a name="l00062"></a>00062 {
<a name="l00063"></a>00063 <span class="comment">// Preparation for following cases:</span>
<a name="l00064"></a>00064 TCharFormat charFormat;
<a name="l00065"></a>00065 TCharFormatMask charFormatMask;
<a name="l00066"></a>00066 iUpdateModelDoesRedraw=ETrue;
<a name="l00067"></a>00067 <span class="comment">// NextPhaseL() should call DrawNow() for the first case only</span>
<a name="l00068"></a>00068 <span class="comment">// Create rich text object to be displayed in the text view</span>
<a name="l00069"></a>00069 iParaFormatLayer=CParaFormatLayer::NewL(); <span class="comment">// required para format</span>
<a name="l00070"></a>00070 iCharFormatLayer=CCharFormatLayer::NewL(); <span class="comment">// required char format</span>
<a name="l00071"></a>00071 <span class="comment">// empty text objects</span>
<a name="l00072"></a>00072 iRichText=CRichText::NewL(iParaFormatLayer, iCharFormatLayer);
<a name="l00073"></a>00073 <span class="comment">// prerequisites for view - viewing rectangle</span>
<a name="l00074"></a>00074 iViewRect=Rect();
<a name="l00075"></a>00075 iViewRect.Shrink(3,3);
<a name="l00076"></a>00076 <span class="comment">// context and device</span>
<a name="l00077"></a>00077 CWindowGc& gc=SystemGc(); <span class="comment">// get graphics context</span>
<a name="l00078"></a>00078 CBitmapDevice* device=(CBitmapDevice*) (gc.Device()); <span class="comment">// device</span>
<a name="l00079"></a>00079 <span class="comment">// Construct the layout object used by the text view,</span>
<a name="l00080"></a>00080 <span class="comment">// specifying wrap width (= width of viewing rectangle)</span>
<a name="l00081"></a>00081 iLayout=CTextLayout::NewL(iRichText,iViewRect.Width());
<a name="l00082"></a>00082 <span class="comment">// Construct text view</span>
<a name="l00083"></a>00083 iTextView=CTextView::NewL(iLayout, iViewRect,
<a name="l00084"></a>00084 device,
<a name="l00085"></a>00085 device,
<a name="l00086"></a>00086 &Window(),
<a name="l00087"></a>00087 &iCoeEnv->RootWin(), <span class="comment">// window group, needed for cursor</span>
<a name="l00088"></a>00088 &iCoeEnv->WsSession()
<a name="l00089"></a>00089 ); <span class="comment">// new view</span>
<a name="l00090"></a>00090 <span class="comment">// Set paragraph fill color and font height.</span>
<a name="l00091"></a>00091 <span class="comment">// For visibility, set font height to 10 point.</span>
<a name="l00092"></a>00092 charFormatMask.SetAttrib(EAttFontHeight);
<a name="l00093"></a>00093 <span class="comment">// height attribute only is relevant</span>
<a name="l00094"></a>00094 charFormat.iFontSpec.iHeight=200; <span class="comment">// set to 10 point (200 twips)</span>
<a name="l00095"></a>00095 iRichText->ApplyCharFormatL(charFormat,charFormatMask,0,0);
<a name="l00096"></a>00096 <span class="comment">// Apply grey paragraph fill colour </span>
<a name="l00097"></a>00097 CParaFormat* paraFormat=CParaFormat::NewL();
<a name="l00098"></a>00098 TParaFormatMask paraFormatMask;
<a name="l00099"></a>00099 paraFormat->iFillColor=TRgb(204,204,204); <span class="comment">// Light grey</span>
<a name="l00100"></a>00100 paraFormatMask.SetAttrib(EAttFillColor);
<a name="l00101"></a>00101 <span class="comment">// fill colour attribute only is relevant</span>
<a name="l00102"></a>00102 iRichText->ApplyParaFormatL(paraFormat,paraFormatMask,0,0);
<a name="l00103"></a>00103 iTextView->FormatTextL();
<a name="l00104"></a>00104 iFormObserver->NotifyStatus(KStatus0);
<a name="l00105"></a>00105 <span class="keyword">delete</span> paraFormat;
<a name="l00106"></a>00106 <span class="keywordflow">break</span>;
<a name="l00107"></a>00107 }
<a name="l00108"></a>00108 <span class="keywordflow">case</span> 1:
<a name="l00109"></a>00109 {
<a name="l00110"></a>00110 <span class="comment">// Set some character formatting</span>
<a name="l00111"></a>00111 iCharFormatMask.SetAttrib(EAttFontStrokeWeight);
<a name="l00112"></a>00112
<a name="l00113"></a>00113 iCharFormat.iFontSpec.iFontStyle.SetStrokeWeight(EStrokeWeightBold);
<a name="l00114"></a>00114
<a name="l00115"></a>00115 <span class="comment">// apply formatting - pos and length are irrelevent</span>
<a name="l00116"></a>00116 iRichText->ApplyCharFormatL(iCharFormat,iCharFormatMask, 0,0);
<a name="l00117"></a>00117
<a name="l00118"></a>00118 <span class="comment">// insert lots of text</span>
<a name="l00119"></a>00119 <span class="keywordflow">for</span> (TInt count=0;count<5;count++) <span class="comment">// insert a paragraph, *5</span>
<a name="l00120"></a>00120 {
<a name="l00121"></a>00121 iRichText->InsertL(iRichText->DocumentLength(),KText1); <span class="comment">// text</span>
<a name="l00122"></a>00122 iRichText->InsertL(iRichText->DocumentLength(),
<a name="l00123"></a>00123 CEditableText::EParagraphDelimiter); <span class="comment">// end para</span>
<a name="l00124"></a>00124 };
<a name="l00125"></a>00125 TCursorSelection selection(0, iRichText->DocumentLength());
<a name="l00126"></a>00126 <span class="comment">// start and length of the inserted block</span>
<a name="l00127"></a>00127 iTextView->HandleInsertDeleteL(selection, 0);
<a name="l00128"></a>00128 <span class="comment">// zero deleted characters </span>
<a name="l00129"></a>00129 iFormObserver->NotifyStatus(KStatus1);
<a name="l00130"></a>00130 <span class="keywordflow">break</span>;
<a name="l00131"></a>00131 }
<a name="l00132"></a>00132 <span class="keywordflow">case</span> 2:
<a name="l00133"></a>00133 {
<a name="l00134"></a>00134 <span class="comment">// Select the first paragraph</span>
<a name="l00135"></a>00135 TInt pos=1;
<a name="l00136"></a>00136 TUint scanMask=CPlainText::EScanToUnitEnd;
<a name="l00137"></a>00137 iRichText->ScanParas(pos,scanMask);
<a name="l00138"></a>00138 <span class="comment">// get end position of current para</span>
<a name="l00139"></a>00139 <span class="comment">// move cursor to end of para and select it</span>
<a name="l00140"></a>00140 iTextView->SetDocPosL(pos,ETrue); <span class="comment">// ETrue = select the range</span>
<a name="l00141"></a>00141 iFormObserver->NotifyStatus(KStatus2);
<a name="l00142"></a>00142 <span class="keywordflow">break</span>;
<a name="l00143"></a>00143 }
<a name="l00144"></a>00144 <span class="keywordflow">case</span> 3:
<a name="l00145"></a>00145 {
<a name="l00146"></a>00146 <span class="comment">// Apply italics to the selected region</span>
<a name="l00147"></a>00147 TCursorSelection cursorSelection;
<a name="l00148"></a>00148 TCharFormat charFormat;
<a name="l00149"></a>00149 TCharFormatMask charFormatMask;
<a name="l00150"></a>00150 <span class="comment">// Set italics</span>
<a name="l00151"></a>00151 charFormat.iFontSpec.iFontStyle.SetPosture(EPostureItalic);
<a name="l00152"></a>00152 charFormatMask.SetAttrib(EAttFontPosture);
<a name="l00153"></a>00153 <span class="comment">// font posture attribute only is relevant</span>
<a name="l00154"></a>00154 cursorSelection=iTextView->Selection(); <span class="comment">// get range of selection</span>
<a name="l00155"></a>00155 TInt lowerPos=cursorSelection.LowerPos();
<a name="l00156"></a>00156 TInt length=cursorSelection.Length();
<a name="l00157"></a>00157 <span class="comment">// Apply formatting to range</span>
<a name="l00158"></a>00158 iRichText->ApplyCharFormatL(charFormat,charFormatMask,lowerPos,length);
<a name="l00159"></a>00159 iTextView->HandleRangeFormatChangeL(cursorSelection); <span class="comment">// reformat from here</span>
<a name="l00160"></a>00160 iTextView->CancelSelectionL(); <span class="comment">// remove selection and redraw</span>
<a name="l00161"></a>00161 iFormObserver->NotifyStatus(KStatus3);
<a name="l00162"></a>00162 <span class="keywordflow">break</span>;
<a name="l00163"></a>00163 }
<a name="l00164"></a>00164 <span class="keywordflow">case</span> 4:
<a name="l00165"></a>00165 {
<a name="l00166"></a>00166 TBuf<80> message;
<a name="l00167"></a>00167 <span class="comment">// Set formatting to the band only and display the number of formatted lines.</span>
<a name="l00168"></a>00168 iLayout->SetAmountToFormat(CTextLayout::EFFormatBand);
<a name="l00169"></a>00169 iTextView->HandleGlobalChangeL(); <span class="comment">// global layout change </span>
<a name="l00170"></a>00170 message.Format(KText4,iLayout->NumFormattedLines());
<a name="l00171"></a>00171 iFormObserver->NotifyStatus(message);
<a name="l00172"></a>00172 <span class="keywordflow">break</span>;
<a name="l00173"></a>00173 }
<a name="l00174"></a>00174 <span class="keywordflow">case</span> 5:
<a name="l00175"></a>00175 {
<a name="l00176"></a>00176 TBuf<80> message;
<a name="l00177"></a>00177 <span class="comment">// Set formatting to the whole document, then display the number of </span>
<a name="l00178"></a>00178 <span class="comment">// formatted lines.</span>
<a name="l00179"></a>00179 iLayout->SetAmountToFormat(CTextLayout::EFFormatAllText);
<a name="l00180"></a>00180 iTextView->HandleGlobalChangeL(); <span class="comment">// global layout change </span>
<a name="l00181"></a>00181 message.Format(KText5,iLayout->NumFormattedLines());
<a name="l00182"></a>00182 iFormObserver->NotifyStatus(message);
<a name="l00183"></a>00183 <span class="keywordflow">break</span>;
<a name="l00184"></a>00184 }
<a name="l00185"></a>00185 <span class="keywordflow">case</span> 6:
<a name="l00186"></a>00186 {
<a name="l00187"></a>00187 <span class="comment">// Set line cursor margin and line cursor bitmap</span>
<a name="l00188"></a>00188 iTextView->SetMarginWidths(0,20); <span class="comment">// zero label margin, 20 pixel line cursor margin</span>
<a name="l00189"></a>00189 iTextView->DrawL(iViewRect); <span class="comment">// update the view (SetMarginWidths() doesn't redraw)</span>
<a name="l00190"></a>00190 <span class="comment">// Load in bitmap to represent line cursor.</span>
<a name="l00191"></a>00191 iBitmap=<span class="keyword">new</span>(ELeave) CFbsBitmap();
<a name="l00192"></a>00192 TBufC<40> pathandfile(KPathAndFile);
<a name="l00193"></a>00193 TParse bitmapFileName;
<a name="l00194"></a>00194 TBufC<2> c_drive(KCDrive);
<a name="l00195"></a>00195 TBufC<2> z_drive(KZDrive);
<a name="l00196"></a>00196
<a name="l00197"></a>00197 bitmapFileName.Set(pathandfile,&c_drive,NULL);
<a name="l00198"></a>00198
<a name="l00199"></a>00199 <span class="keywordflow">if</span> (iBitmap->Load(bitmapFileName.FullName()))
<a name="l00200"></a>00200 <span class="comment">// can't find cursor bitmap on C: drive, so try Z:</span>
<a name="l00201"></a>00201 {
<a name="l00202"></a>00202 bitmapFileName.Set(pathandfile,&z_drive,NULL);
<a name="l00203"></a>00203 iBitmap->Load(bitmapFileName.FullName());
<a name="l00204"></a>00204 iTextView->SetLineCursorBitmap(iBitmap);
<a name="l00205"></a>00205 iTextView->SetCursorVisibilityL(TCursor::EFCursorVisible,
<a name="l00206"></a>00206 TCursor::EFCursorFlashing);
<a name="l00207"></a>00207 <span class="comment">// both cursors now visible - flashing text cursor</span>
<a name="l00208"></a>00208 iFormObserver->NotifyStatus(KStatus6);
<a name="l00209"></a>00209 }
<a name="l00210"></a>00210 <span class="keywordflow">break</span>;
<a name="l00211"></a>00211 }
<a name="l00212"></a>00212 <span class="keywordflow">case</span> 7:
<a name="l00213"></a>00213 {
<a name="l00214"></a>00214 <span class="comment">// Reset the view rectangle.</span>
<a name="l00215"></a>00215 <span class="comment">// Before doing this, clear the existing one,</span>
<a name="l00216"></a>00216 <span class="comment">// (the view should really be implemented as a control, in a container control,</span>
<a name="l00217"></a>00217 <span class="comment">// and then the background would get cleared nicely by the container).</span>
<a name="l00218"></a>00218 ActivateGc();
<a name="l00219"></a>00219 SystemGc().Clear(iViewRect);
<a name="l00220"></a>00220 DeactivateGc();
<a name="l00221"></a>00221 <span class="comment">// Shrink the view rectangle by 40 pixels both directions</span>
<a name="l00222"></a>00222 iViewRect.Shrink(40,40);
<a name="l00223"></a>00223 iTextView->SetViewRect(iViewRect);
<a name="l00224"></a>00224 iTextView->DrawL(iViewRect); <span class="comment">// Redraw the completely revamped view </span>
<a name="l00225"></a>00225 <span class="comment">// (SetViewRect() does not do a redraw)</span>
<a name="l00226"></a>00226 iFormObserver->NotifyStatus(KStatus7);
<a name="l00227"></a>00227 <span class="keywordflow">break</span>;
<a name="l00228"></a>00228 }
<a name="l00229"></a>00229 <span class="keywordflow">case</span> 8:
<a name="l00230"></a>00230 {
<a name="l00231"></a>00231 <span class="comment">// Wrap text to new view rectangle.</span>
<a name="l00232"></a>00232 <span class="comment">// New wrap width = new view rect width minus total margin width.</span>
<a name="l00233"></a>00233 <span class="comment">// First calculate the total margin width.</span>
<a name="l00234"></a>00234 TInt labelMarginWidth;
<a name="l00235"></a>00235 TInt lineCursorMarginWidth;
<a name="l00236"></a>00236 iTextView->MarginWidths(labelMarginWidth,lineCursorMarginWidth);
<a name="l00237"></a>00237 iLayout->SetWrapWidth(iViewRect.Width()-(labelMarginWidth+lineCursorMarginWidth));
<a name="l00238"></a>00238 iLayout->ForceNoWrapping(EFalse); <span class="comment">// Ensure wrapping on</span>
<a name="l00239"></a>00239 iTextView->HandleGlobalChangeL();
<a name="l00240"></a>00240 iFormObserver->NotifyStatus(KStatus8);
<a name="l00241"></a>00241 <span class="keywordflow">break</span>;
<a name="l00242"></a>00242 }
<a name="l00243"></a>00243 <span class="keywordflow">case</span> 9:
<a name="l00244"></a>00244 {
<a name="l00245"></a>00245 <span class="comment">// Reset view rectangle back to old dimensions and set wrapping</span>
<a name="l00246"></a>00246 <span class="comment">// width accordingly</span>
<a name="l00247"></a>00247 TInt labelMarginWidth;
<a name="l00248"></a>00248 TInt lineCursorMarginWidth;
<a name="l00249"></a>00249 iTextView->MarginWidths(labelMarginWidth,lineCursorMarginWidth);
<a name="l00250"></a>00250 iViewRect.Grow(40,40);
<a name="l00251"></a>00251 <span class="comment">// Increase view rectangle by 40 pixels both directions</span>
<a name="l00252"></a>00252 iTextView->SetViewRect(iViewRect);
<a name="l00253"></a>00253 iLayout->SetWrapWidth(iViewRect.Width()-(labelMarginWidth+lineCursorMarginWidth));
<a name="l00254"></a>00254 iTextView->HandleGlobalChangeL();
<a name="l00255"></a>00255 iFormObserver->NotifyStatus((KStatus9));
<a name="l00256"></a>00256 <span class="keywordflow">break</span>;
<a name="l00257"></a>00257 }
<a name="l00258"></a>00258 <span class="keywordflow">case</span> 10:
<a name="l00259"></a>00259 <span class="comment">// Horizontal scrolling</span>
<a name="l00260"></a>00260 iTextView->SetHorizontalScrollJump(40); <span class="comment">// scroll jump is 40 pixels</span>
<a name="l00261"></a>00261 iTextView->ScrollDisplayL(TCursorPosition::EFLeft,CTextLayout::EFAllowScrollingBlankSpace);
<a name="l00262"></a>00262 <span class="comment">// scroll to the left (scrolling blank space is allowed)</span>
<a name="l00263"></a>00263 iFormObserver->NotifyStatus(KStatus10);
<a name="l00264"></a>00264 <span class="keywordflow">break</span>;
<a name="l00265"></a>00265 <span class="keywordflow">case</span> 11:
<a name="l00266"></a>00266 {
<a name="l00267"></a>00267 <span class="comment">// Vertical scrolling</span>
<a name="l00268"></a>00268 iFormObserver->NotifyStatus(KStatus11);
<a name="l00269"></a>00269 TInt pixelsScrolled;
<a name="l00270"></a>00270 <span class="comment">// Scroll down to the bottom of the document, </span>
<a name="l00271"></a>00271 <span class="keywordflow">do</span>
<a name="l00272"></a>00272 pixelsScrolled=iTextView->ScrollDisplayL(TCursorPosition::EFLineDown,
<a name="l00273"></a>00273 CTextLayout::EFDisallowScrollingBlankSpace);
<a name="l00274"></a>00274 <span class="keywordflow">while</span> (pixelsScrolled);
<a name="l00275"></a>00275 <span class="keywordflow">break</span>;
<a name="l00276"></a>00276 }
<a name="l00277"></a>00277 <span class="keywordflow">case</span> 12:
<a name="l00278"></a>00278 {
<a name="l00279"></a>00279 <span class="comment">// Horizontal scroll back to left margin and to top of doc</span>
<a name="l00280"></a>00280 iFormObserver->NotifyStatus(KStatus12);
<a name="l00281"></a>00281 TInt pixelsScrolled;
<a name="l00282"></a>00282 <span class="keywordflow">do</span>
<a name="l00283"></a>00283 pixelsScrolled=iTextView->ScrollDisplayL(TCursorPosition::EFLineUp);
<a name="l00284"></a>00284 <span class="keywordflow">while</span> (pixelsScrolled);
<a name="l00285"></a>00285 iTextView->ScrollDisplayL(TCursorPosition::EFRight);
<a name="l00286"></a>00286 <span class="comment">// scroll right (horizontal scroll jump value=40 pixels)</span>
<a name="l00287"></a>00287 <span class="keywordflow">break</span>;
<a name="l00288"></a>00288 }
<a name="l00289"></a>00289 <span class="keywordflow">case</span> 13:
<a name="l00290"></a>00290 {
<a name="l00291"></a>00291 <span class="comment">// Reset document. </span>
<a name="l00292"></a>00292 iRichText->Reset(); <span class="comment">// change whole document!</span>
<a name="l00293"></a>00293 iTextView->FormatTextL(); <span class="comment">// so format the whole lot</span>
<a name="l00294"></a>00294 iTextView->DrawL(iViewRect); <span class="comment">// and draw it afresh</span>
<a name="l00295"></a>00295 iFormObserver->NotifyStatus(KStatus13);
<a name="l00296"></a>00296 <span class="keywordflow">break</span>;
<a name="l00297"></a>00297 }
<a name="l00298"></a>00298 <span class="keywordflow">default</span>:
<a name="l00299"></a>00299 iFormObserver->NotifyStatus(KStatusDefault);
<a name="l00300"></a>00300 <span class="keywordflow">break</span>;
<a name="l00301"></a>00301 }
<a name="l00302"></a>00302 }
<a name="l00303"></a>00303
<a name="l00304"></a>00304 <span class="keywordtype">void</span> CViewControl::Draw(<span class="keyword">const</span> TRect& aRect)<span class="keyword"> const</span>
<a name="l00305"></a>00305 <span class="keyword"> </span>{
<a name="l00306"></a>00306 <span class="comment">// draw surround</span>
<a name="l00307"></a>00307 CGraphicsContext& gc=SystemGc(); <span class="comment">// context to draw into</span>
<a name="l00308"></a>00308 TRect rect=Rect(); <span class="comment">// screen boundary</span>
<a name="l00309"></a>00309 gc.DrawRect(rect); <span class="comment">// outline screen boundary</span>
<a name="l00310"></a>00310 rect.Shrink(1,1);
<a name="l00311"></a>00311 gc.SetPenColor(KRgbWhite);
<a name="l00312"></a>00312 gc.DrawRect(rect);
<a name="l00313"></a>00313 rect.Shrink(1,1);
<a name="l00314"></a>00314 gc.SetPenColor(KRgbBlack);
<a name="l00315"></a>00315 gc.DrawRect(rect);
<a name="l00316"></a>00316 <span class="comment">// draw editable text - will work unless OOM</span>
<a name="l00317"></a>00317 TInt err;
<a name="l00318"></a>00318 TRAP(err,iTextView->DrawL(aRect));
<a name="l00319"></a>00319 }
<a name="l00320"></a>00320
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