Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_draw_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/Graphics/GraphicsShell/Draw.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 "GraphicsControl.h"</span>
<a name="l00017"></a>00017
<a name="l00018"></a>00018 <span class="preprocessor">#include <coemain.h></span>
<a name="l00019"></a>00019
<a name="l00020"></a>00020 <span class="comment">// Text printed to the console in UpdateModeL()</span>
<a name="l00021"></a>00021 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase0,<span class="stringliteral">"point in center of screen"</span>);
<a name="l00022"></a>00022 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase1,<span class="stringliteral">"bolder point in center of screen"</span>);
<a name="l00023"></a>00023 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase2,<span class="stringliteral">"really bold point in center of screen"</span>);
<a name="l00024"></a>00024 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase3,<span class="stringliteral">"a line"</span>);
<a name="l00025"></a>00025 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase4,<span class="stringliteral">"a thicker line"</span>);
<a name="l00026"></a>00026 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase5,<span class="stringliteral">"really thick - note round ends and clipping"</span>);
<a name="l00027"></a>00027 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase6,<span class="stringliteral">"dotted line"</span>);
<a name="l00028"></a>00028 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase7,<span class="stringliteral">"dot-dash line"</span>);
<a name="l00029"></a>00029 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase8,<span class="stringliteral">"triangle using relative drawing"</span>);
<a name="l00030"></a>00030 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase9,<span class="stringliteral">"thick triangle - note rounded corners"</span>);
<a name="l00031"></a>00031 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase10,<span class="stringliteral">"dotted triangle - note pattern continuation"</span>);
<a name="l00032"></a>00032 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase11,<span class="stringliteral">"centered ellipse"</span>);
<a name="l00033"></a>00033 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase12,<span class="stringliteral">"arc - part of ellipse"</span>);
<a name="l00034"></a>00034 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase13,<span class="stringliteral">"arc - other part - see also construction elements"</span>);
<a name="l00035"></a>00035 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase14,<span class="stringliteral">"pie slices"</span>);
<a name="l00036"></a>00036 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase15,<span class="stringliteral">"centered rectangle with rounded corners"</span>);
<a name="l00037"></a>00037 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase16,<span class="stringliteral">"rounded rectangle showing corner ellipse"</span>);
<a name="l00038"></a>00038 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase17,<span class="stringliteral">"polyline"</span>);
<a name="l00039"></a>00039 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase18,<span class="stringliteral">"polygon with winding-fill rule"</span>);
<a name="l00040"></a>00040 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase19,<span class="stringliteral">"polygon using alternate-fill rule"</span>);
<a name="l00041"></a>00041 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase20,<span class="stringliteral">"copying using CopyRect()"</span>);
<a name="l00042"></a>00042 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase21,<span class="stringliteral">"left-justified boxed text"</span>);
<a name="l00043"></a>00043 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase22,<span class="stringliteral">"centered boxed text"</span>);
<a name="l00044"></a>00044 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase23,<span class="stringliteral">"right-justified offset text"</span>);
<a name="l00045"></a>00045 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase24,<span class="stringliteral">"cross-hatched box"</span>);
<a name="l00046"></a>00046 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelCase25,<span class="stringliteral">"teeny preview font!"</span>);
<a name="l00047"></a>00047 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtUpdateModelDefault,<span class="stringliteral">"overran!"</span>);
<a name="l00048"></a>00048
<a name="l00049"></a>00049 <span class="keyword">static</span> CArrayFix<TPoint>* CreatePointsArrayL();
<a name="l00050"></a>00050
<a name="l00051"></a>00051 <span class="keywordtype">void</span> CDrawControl::UpdateModelL()
<a name="l00052"></a>00052 {
<a name="l00053"></a>00053 <span class="keywordflow">switch</span> (Phase())
<a name="l00054"></a>00054 {
<a name="l00055"></a>00055 <span class="keywordflow">case</span> 0:
<a name="l00056"></a>00056 iGraphObserver->NotifyStatus(KTxtUpdateModelCase0);
<a name="l00057"></a>00057 <span class="keywordflow">break</span>;
<a name="l00058"></a>00058 <span class="keywordflow">case</span> 1:
<a name="l00059"></a>00059 iGraphObserver->NotifyStatus(KTxtUpdateModelCase1);
<a name="l00060"></a>00060 <span class="keywordflow">break</span>;
<a name="l00061"></a>00061 <span class="keywordflow">case</span> 2:
<a name="l00062"></a>00062 iGraphObserver->NotifyStatus(KTxtUpdateModelCase2);
<a name="l00063"></a>00063 <span class="keywordflow">break</span>;
<a name="l00064"></a>00064 <span class="keywordflow">case</span> 3:
<a name="l00065"></a>00065 iGraphObserver->NotifyStatus(KTxtUpdateModelCase3);
<a name="l00066"></a>00066 <span class="keywordflow">break</span>;
<a name="l00067"></a>00067 <span class="keywordflow">case</span> 4:
<a name="l00068"></a>00068 iGraphObserver->NotifyStatus(KTxtUpdateModelCase4);
<a name="l00069"></a>00069 <span class="keywordflow">break</span>;
<a name="l00070"></a>00070 <span class="keywordflow">case</span> 5:
<a name="l00071"></a>00071 iGraphObserver->NotifyStatus(KTxtUpdateModelCase5);
<a name="l00072"></a>00072 <span class="keywordflow">break</span>;
<a name="l00073"></a>00073 <span class="keywordflow">case</span> 6:
<a name="l00074"></a>00074 iGraphObserver->NotifyStatus(KTxtUpdateModelCase6);
<a name="l00075"></a>00075 <span class="keywordflow">break</span>;
<a name="l00076"></a>00076 <span class="keywordflow">case</span> 7:
<a name="l00077"></a>00077 iGraphObserver->NotifyStatus(KTxtUpdateModelCase7);
<a name="l00078"></a>00078 <span class="keywordflow">break</span>;
<a name="l00079"></a>00079 <span class="keywordflow">case</span> 8:
<a name="l00080"></a>00080 iGraphObserver->NotifyStatus(KTxtUpdateModelCase8);
<a name="l00081"></a>00081 <span class="keywordflow">break</span>;
<a name="l00082"></a>00082 <span class="keywordflow">case</span> 9:
<a name="l00083"></a>00083 iGraphObserver->NotifyStatus(KTxtUpdateModelCase9);
<a name="l00084"></a>00084 <span class="keywordflow">break</span>;
<a name="l00085"></a>00085 <span class="keywordflow">case</span> 10:
<a name="l00086"></a>00086 iGraphObserver->NotifyStatus(KTxtUpdateModelCase10);
<a name="l00087"></a>00087 <span class="keywordflow">break</span>;
<a name="l00088"></a>00088 <span class="keywordflow">case</span> 11:
<a name="l00089"></a>00089 iGraphObserver->NotifyStatus(KTxtUpdateModelCase11);
<a name="l00090"></a>00090 <span class="keywordflow">break</span>;
<a name="l00091"></a>00091 <span class="keywordflow">case</span> 12:
<a name="l00092"></a>00092 iGraphObserver->NotifyStatus(KTxtUpdateModelCase12);
<a name="l00093"></a>00093 <span class="keywordflow">break</span>;
<a name="l00094"></a>00094 <span class="keywordflow">case</span> 13:
<a name="l00095"></a>00095 iGraphObserver->NotifyStatus(KTxtUpdateModelCase13);
<a name="l00096"></a>00096 <span class="keywordflow">break</span>;
<a name="l00097"></a>00097 <span class="keywordflow">case</span> 14:
<a name="l00098"></a>00098 iGraphObserver->NotifyStatus(KTxtUpdateModelCase14);
<a name="l00099"></a>00099 <span class="keywordflow">break</span>;
<a name="l00100"></a>00100 <span class="keywordflow">case</span> 15:
<a name="l00101"></a>00101 iGraphObserver->NotifyStatus(KTxtUpdateModelCase15);
<a name="l00102"></a>00102 <span class="keywordflow">break</span>;
<a name="l00103"></a>00103 <span class="keywordflow">case</span> 16:
<a name="l00104"></a>00104 {
<a name="l00105"></a>00105 iGraphObserver->NotifyStatus(KTxtUpdateModelCase16);
<a name="l00106"></a>00106 }
<a name="l00107"></a>00107 <span class="keywordflow">break</span>;
<a name="l00108"></a>00108 <span class="keywordflow">case</span> 17:
<a name="l00109"></a>00109 iGraphObserver->NotifyStatus(KTxtUpdateModelCase17);
<a name="l00110"></a>00110 <span class="keywordflow">break</span>;
<a name="l00111"></a>00111 <span class="keywordflow">case</span> 18:
<a name="l00112"></a>00112 iGraphObserver->NotifyStatus(KTxtUpdateModelCase18);
<a name="l00113"></a>00113 <span class="keywordflow">break</span>;
<a name="l00114"></a>00114 <span class="keywordflow">case</span> 19:
<a name="l00115"></a>00115 iGraphObserver->NotifyStatus(KTxtUpdateModelCase19);
<a name="l00116"></a>00116 <span class="keywordflow">break</span>;
<a name="l00117"></a>00117 <span class="keywordflow">case</span> 20:
<a name="l00118"></a>00118 {
<a name="l00119"></a>00119 iGraphObserver->NotifyStatus(KTxtUpdateModelCase20);
<a name="l00120"></a>00120 }
<a name="l00121"></a>00121 <span class="keywordflow">break</span>;
<a name="l00122"></a>00122 <span class="keywordflow">case</span> 21:
<a name="l00123"></a>00123 iGraphObserver->NotifyStatus(KTxtUpdateModelCase21);
<a name="l00124"></a>00124 <span class="keywordflow">break</span>;
<a name="l00125"></a>00125 <span class="keywordflow">case</span> 22:
<a name="l00126"></a>00126 iGraphObserver->NotifyStatus(KTxtUpdateModelCase22);
<a name="l00127"></a>00127 <span class="keywordflow">break</span>;
<a name="l00128"></a>00128 <span class="keywordflow">case</span> 23:
<a name="l00129"></a>00129 iGraphObserver->NotifyStatus(KTxtUpdateModelCase23);
<a name="l00130"></a>00130 <span class="keywordflow">break</span>;
<a name="l00131"></a>00131 <span class="keywordflow">case</span> 24:
<a name="l00132"></a>00132 iGraphObserver->NotifyStatus(KTxtUpdateModelCase24);
<a name="l00133"></a>00133 <span class="keywordflow">break</span>;
<a name="l00134"></a>00134 <span class="keywordflow">case</span> 25:
<a name="l00135"></a>00135 iGraphObserver->NotifyStatus(KTxtUpdateModelCase25);
<a name="l00136"></a>00136 <span class="keywordflow">break</span>;
<a name="l00137"></a>00137 <span class="keywordflow">default</span>:
<a name="l00138"></a>00138 iGraphObserver->NotifyStatus(KTxtUpdateModelDefault);
<a name="l00139"></a>00139 <span class="keywordflow">break</span>;
<a name="l00140"></a>00140 }
<a name="l00141"></a>00141 }
<a name="l00142"></a>00142
<a name="l00143"></a>00143
<a name="l00144"></a>00144 <span class="comment">// Text printed to the console in UpdateModeL()</span>
<a name="l00145"></a>00145 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtDrawCase21,<span class="stringliteral">"White text left justified in dark gray box"</span>);
<a name="l00146"></a>00146 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtDrawCase22,<span class="stringliteral">"White text centered in black box"</span>);
<a name="l00147"></a>00147 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtDrawCase23,<span class="stringliteral">"Dark gray text right justified in lite gray box"</span>);
<a name="l00148"></a>00148 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtDrawCase25,<span class="stringliteral">"This text overwrites the cleared area"</span>);
<a name="l00149"></a>00149
<a name="l00150"></a>00150
<a name="l00151"></a>00151 <span class="keywordtype">void</span> CDrawControl::Draw(<span class="keyword">const</span> TRect& <span class="comment">/* aRect */</span>)<span class="keyword"> const</span>
<a name="l00152"></a>00152 <span class="keyword"> </span>{
<a name="l00153"></a>00153 <span class="comment">// put the next line back in to see the individual drawing actions</span>
<a name="l00154"></a>00154 <span class="comment">// (iCoeEnv->WsSession()).SetAutoFlush(ETrue);</span>
<a name="l00155"></a>00155 <span class="comment">// draw surrounding rectangle</span>
<a name="l00156"></a>00156 CWindowGc& gc=SystemGc(); <span class="comment">// graphics context we draw to</span>
<a name="l00157"></a>00157 gc.UseFont(iMessageFont); <span class="comment">// use the system message font</span>
<a name="l00158"></a>00158 gc.Clear();
<a name="l00159"></a>00159 SystemGc().DrawRect(Rect()); <span class="comment">// surrounding rectangle to draw into</span>
<a name="l00160"></a>00160 TRect rect=Rect(); <span class="comment">// a centered rectangle of the default size</span>
<a name="l00161"></a>00161 TRect ellipseRect=Rect(); <span class="comment">// for arcs and ellipse</span>
<a name="l00162"></a>00162 ellipseRect.Shrink(10,10); <span class="comment">// set size so inside the border rectangle</span>
<a name="l00163"></a>00163 TRect box=Rect(); <span class="comment">// a smaller centered rectangle, for text in a box</span>
<a name="l00164"></a>00164 box.Shrink(10,10); <span class="comment">// set size of text box</span>
<a name="l00165"></a>00165 TRect tinyBox=Rect(); <span class="comment">// a tiny box to clear</span>
<a name="l00166"></a>00166 tinyBox.Shrink(220,90); <span class="comment">// set size of tiny box to clear</span>
<a name="l00167"></a>00167 TInt offset=0; <span class="comment">// offset, for text in a box</span>
<a name="l00168"></a>00168 TPoint screenCenterPoint=rect.Center(); <span class="comment">// the center of the screen </span>
<a name="l00169"></a>00169 <span class="comment">// set up a pair of construction points for arc and pie slice drawing</span>
<a name="l00170"></a>00170 <span class="comment">// set up the size for half a screen (divided vertically)</span>
<a name="l00171"></a>00171 TPoint constructionPoint1(15,15); <span class="comment">// outside the construction ellipse</span>
<a name="l00172"></a>00172 TPoint constructionPoint2(200,150); <span class="comment">// inside the construction ellipse</span>
<a name="l00173"></a>00173 <span class="comment">// set up a pair of points for drawing diagonal lines</span>
<a name="l00174"></a>00174 TPoint startPoint(50,50);
<a name="l00175"></a>00175 TPoint endPoint(590,190);
<a name="l00176"></a>00176 <span class="comment">// set up an array of points for drawing a polyline and a polygon etc</span>
<a name="l00177"></a>00177 <span class="comment">// will be used relative to top left of rectangle</span>
<a name="l00178"></a>00178 CArrayFix<TPoint>* mypoints=NULL;
<a name="l00179"></a>00179 TRAPD(err,mypoints = CreatePointsArrayL());
<a name="l00180"></a>00180 <span class="keywordflow">if</span>(err)
<a name="l00181"></a>00181 {
<a name="l00182"></a>00182 <span class="keywordflow">return</span>;
<a name="l00183"></a>00183 }
<a name="l00184"></a>00184 <span class="comment">// set up a black, a dark gray, a lite gray and a white RGB color</span>
<a name="l00185"></a>00185 TRgb black(0,0,0);
<a name="l00186"></a>00186 TRgb darkGray(85,85,85);
<a name="l00187"></a>00187 TRgb liteGray(170,170,170);
<a name="l00188"></a>00188 TRgb white(255,255,255); <span class="comment">// appears as blank screen gray-green color</span>
<a name="l00189"></a>00189 <span class="comment">// Set up a "bold" size for the pen tip to (default is 1,1)</span>
<a name="l00190"></a>00190 TSize penSizeBold(3,3);
<a name="l00191"></a>00191 <span class="comment">// Set up a "fat" size for the pen tip</span>
<a name="l00192"></a>00192 TSize penSizeFat(30,30);
<a name="l00193"></a>00193 <span class="comment">// decide what to do, and do it</span>
<a name="l00194"></a>00194 <span class="keywordflow">switch</span> (Phase())
<a name="l00195"></a>00195 {
<a name="l00196"></a>00196 <span class="keywordflow">case</span> 0:
<a name="l00197"></a>00197 <span class="comment">// draw a single pixel point in the center of the screen</span>
<a name="l00198"></a>00198 <span class="comment">// it is so small that some text is needed to explain the screen...</span>
<a name="l00199"></a>00199 gc.Plot(screenCenterPoint);
<a name="l00200"></a>00200 <span class="keywordflow">break</span>;
<a name="l00201"></a>00201 <span class="keywordflow">case</span> 1:
<a name="l00202"></a>00202 <span class="comment">// draw a "bold" point 3 pixels across</span>
<a name="l00203"></a>00203 gc.SetPenSize(penSizeBold);
<a name="l00204"></a>00204 gc.Plot(screenCenterPoint);
<a name="l00205"></a>00205 <span class="keywordflow">break</span>;
<a name="l00206"></a>00206 <span class="keywordflow">case</span> 2:
<a name="l00207"></a>00207 <span class="comment">// draw a "fat" point (circular blob),</span>
<a name="l00208"></a>00208 <span class="comment">// illustrating the effect of a very wide pen</span>
<a name="l00209"></a>00209 gc.SetPenSize(penSizeFat);
<a name="l00210"></a>00210 gc.Plot(screenCenterPoint);
<a name="l00211"></a>00211 <span class="keywordflow">break</span>;
<a name="l00212"></a>00212 <span class="keywordflow">case</span> 3:
<a name="l00213"></a>00213 <span class="comment">// draw a thin line fromtop left to bottom right</span>
<a name="l00214"></a>00214 gc.DrawLine(startPoint,endPoint);
<a name="l00215"></a>00215 <span class="keywordflow">break</span>;
<a name="l00216"></a>00216 <span class="keywordflow">case</span> 4:
<a name="l00217"></a>00217 <span class="comment">// draw a "bold" line fromtop left to bottom right</span>
<a name="l00218"></a>00218 gc.SetPenSize(penSizeBold);
<a name="l00219"></a>00219 gc.DrawLine(startPoint,endPoint);
<a name="l00220"></a>00220 <span class="keywordflow">break</span>;
<a name="l00221"></a>00221 <span class="keywordflow">case</span> 5:
<a name="l00222"></a>00222 <span class="comment">// draw a rather wide line from top left to bottom right,</span>
<a name="l00223"></a>00223 <span class="comment">// illustrating rounded ends and their clipping</span>
<a name="l00224"></a>00224 gc.SetPenSize(penSizeFat);
<a name="l00225"></a>00225 gc.DrawLine(startPoint,endPoint);
<a name="l00226"></a>00226 <span class="keywordflow">break</span>;
<a name="l00227"></a>00227 <span class="keywordflow">case</span> 6:
<a name="l00228"></a>00228 <span class="comment">// draw a dotted line from top left to bottom right</span>
<a name="l00229"></a>00229 gc.SetPenStyle(CGraphicsContext::EDottedPen);
<a name="l00230"></a>00230 gc.DrawLine(startPoint,endPoint);
<a name="l00231"></a>00231 <span class="keywordflow">break</span>;
<a name="l00232"></a>00232 <span class="keywordflow">case</span> 7:
<a name="l00233"></a>00233 <span class="comment">// draw a dot-dash line from top left to bottom right</span>
<a name="l00234"></a>00234 gc.SetPenStyle(CGraphicsContext::EDotDashPen);
<a name="l00235"></a>00235 gc.DrawLine(startPoint,endPoint);
<a name="l00236"></a>00236 <span class="keywordflow">break</span>;
<a name="l00237"></a>00237 <span class="keywordflow">case</span> 8:
<a name="l00238"></a>00238 <span class="comment">// draw a triangle by relative drawing</span>
<a name="l00239"></a>00239 gc.MoveTo(TPoint(300,50)); <span class="comment">// drawing position (300,50)</span>
<a name="l00240"></a>00240 gc.DrawLineBy(TPoint(205,100)); <span class="comment">// drawing position (505,150)</span>
<a name="l00241"></a>00241 gc.DrawLineBy(TPoint(-410,0)); <span class="comment">// drawing position (95,150)</span>
<a name="l00242"></a>00242 gc.DrawLineBy(TPoint(205,-100)); <span class="comment">// drawing position (300,50)</span>
<a name="l00243"></a>00243 <span class="keywordflow">break</span>;
<a name="l00244"></a>00244 <span class="keywordflow">case</span> 9:
<a name="l00245"></a>00245 <span class="comment">// draw a triangle, by relative drawing</span>
<a name="l00246"></a>00246 <span class="comment">// illustrating rounded ends at corners when using very wide lines</span>
<a name="l00247"></a>00247 gc.SetPenSize(penSizeFat);
<a name="l00248"></a>00248 gc.MoveTo(TPoint(300,50)); <span class="comment">// drawing position (300,50)</span>
<a name="l00249"></a>00249 gc.DrawLineBy(TPoint(205,100)); <span class="comment">// drawing position (505,150)</span>
<a name="l00250"></a>00250 gc.DrawLineBy(TPoint(-410,0)); <span class="comment">// drawing position (95,150)</span>
<a name="l00251"></a>00251 gc.DrawLineBy(TPoint(205,-100)); <span class="comment">// drawing position (300,50)</span>
<a name="l00252"></a>00252 <span class="keywordflow">break</span>;
<a name="l00253"></a>00253 <span class="keywordflow">case</span> 10:
<a name="l00254"></a>00254 <span class="comment">// draw a triangle by sequential drawing between specified points,</span>
<a name="l00255"></a>00255 <span class="comment">// using dot-dash line style, illustrating line pattern continuation </span>
<a name="l00256"></a>00256 gc.SetPenStyle(CGraphicsContext::EDotDashPen);
<a name="l00257"></a>00257 gc.MoveTo(TPoint(300,50)); <span class="comment">// drawing position (300,50)</span>
<a name="l00258"></a>00258 gc.DrawLineTo(TPoint(505,150)); <span class="comment">// drawing position (505,150)</span>
<a name="l00259"></a>00259 gc.DrawLineTo(TPoint(95,150)); <span class="comment">// drawing position (95,150)</span>
<a name="l00260"></a>00260 gc.DrawLineTo(TPoint(300,50)); <span class="comment">// drawing position (300,50)</span>
<a name="l00261"></a>00261 <span class="keywordflow">break</span>;
<a name="l00262"></a>00262 <span class="keywordflow">case</span> 11:
<a name="l00263"></a>00263 <span class="comment">// draw an ellipse centered in the rectangle</span>
<a name="l00264"></a>00264 gc.DrawEllipse(ellipseRect);
<a name="l00265"></a>00265 <span class="keywordflow">break</span>;
<a name="l00266"></a>00266 <span class="keywordflow">case</span> 12:
<a name="l00267"></a>00267 <span class="comment">// draw an arc centered in the rectangle</span>
<a name="l00268"></a>00268 gc.DrawArc(ellipseRect,constructionPoint1,constructionPoint2);
<a name="l00269"></a>00269 <span class="comment">// gc.Clear();</span>
<a name="l00270"></a>00270 <span class="keywordflow">break</span>;
<a name="l00271"></a>00271 <span class="keywordflow">case</span> 13:
<a name="l00272"></a>00272 <span class="comment">// draw an arc centered in the rectangle that is the other</span>
<a name="l00273"></a>00273 <span class="comment">// portion of the ellipse (arguments reversed)</span>
<a name="l00274"></a>00274 gc.DrawArc(ellipseRect,constructionPoint2,constructionPoint1);
<a name="l00275"></a>00275 <span class="comment">// draw construction lines and points</span>
<a name="l00276"></a>00276 gc.SetPenStyle(CGraphicsContext::EDottedPen);
<a name="l00277"></a>00277 gc.MoveTo(constructionPoint1);
<a name="l00278"></a>00278 gc.DrawLineTo(screenCenterPoint);
<a name="l00279"></a>00279 gc.DrawLineTo(constructionPoint2);
<a name="l00280"></a>00280 gc.SetPenSize(penSizeBold);
<a name="l00281"></a>00281 gc.Plot(constructionPoint1);
<a name="l00282"></a>00282 gc.Plot(constructionPoint2);
<a name="l00283"></a>00283 gc.Plot(screenCenterPoint);
<a name="l00284"></a>00284 <span class="keywordflow">break</span>;
<a name="l00285"></a>00285 <span class="keywordflow">case</span> 14:
<a name="l00286"></a>00286 <span class="comment">// draw a pie slice centered in the rectangle</span>
<a name="l00287"></a>00287 gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
<a name="l00288"></a>00288 gc.SetBrushColor(white);
<a name="l00289"></a>00289 gc.DrawPie(ellipseRect,constructionPoint1,constructionPoint2);
<a name="l00290"></a>00290 <span class="comment">// draw the other portion of the elliptical disc</span>
<a name="l00291"></a>00291 gc.SetBrushStyle(CGraphicsContext::EVerticalHatchBrush);
<a name="l00292"></a>00292 gc.DrawPie(ellipseRect,constructionPoint2,constructionPoint1);
<a name="l00293"></a>00293 <span class="keywordflow">break</span>;
<a name="l00294"></a>00294 <span class="keywordflow">case</span> 15:
<a name="l00295"></a>00295 {
<a name="l00296"></a>00296 <span class="comment">// draw a rectangle with rounded corners, centered in the rectangle</span>
<a name="l00297"></a>00297 TSize cornerSize(20,20); <span class="comment">// size of a rounded corner</span>
<a name="l00298"></a>00298 gc.DrawRoundRect(box,cornerSize); <span class="comment">// same rect as text box</span>
<a name="l00299"></a>00299 }
<a name="l00300"></a>00300 <span class="keywordflow">break</span>;
<a name="l00301"></a>00301 <span class="keywordflow">case</span> 16:
<a name="l00302"></a>00302 {
<a name="l00303"></a>00303 <span class="comment">// draw a rectangle with rounded corners,</span>
<a name="l00304"></a>00304 <span class="comment">//centered in the rectangle, showing a corner ellipse</span>
<a name="l00305"></a>00305 TSize cornerSize(20,20); <span class="comment">// size of a rounded corner</span>
<a name="l00306"></a>00306 <span class="comment">// rect for corner ellipse is twice the corner size</span>
<a name="l00307"></a>00307 TSize cornerEllipseSize(cornerSize.iHeight*2,cornerSize.iWidth*2);
<a name="l00308"></a>00308 TRect cornerRectTl(box.iTl,cornerEllipseSize);
<a name="l00309"></a>00309 gc.DrawRoundRect(box,cornerSize);
<a name="l00310"></a>00310 gc.SetPenStyle(CGraphicsContext::EDottedPen);
<a name="l00311"></a>00311 gc.DrawEllipse(cornerRectTl); <span class="comment">// corner construction ellipse</span>
<a name="l00312"></a>00312 }
<a name="l00313"></a>00313 <span class="keywordflow">break</span>;
<a name="l00314"></a>00314 <span class="keywordflow">case</span> 17:
<a name="l00315"></a>00315 <span class="comment">// draw a polyline</span>
<a name="l00316"></a>00316 gc.DrawPolyLine(mypoints);
<a name="l00317"></a>00317 <span class="keywordflow">break</span>;
<a name="l00318"></a>00318 <span class="keywordflow">case</span> 18:
<a name="l00319"></a>00319 <span class="comment">// draw self-crossing polygon using the winding fill rule</span>
<a name="l00320"></a>00320 gc.SetBrushStyle(CGraphicsContext::ESquareCrossHatchBrush);
<a name="l00321"></a>00321 gc.SetBrushColor(black);
<a name="l00322"></a>00322 gc.DrawPolygon(mypoints,CGraphicsContext::EWinding);
<a name="l00323"></a>00323 <span class="keywordflow">break</span>;
<a name="l00324"></a>00324 <span class="keywordflow">case</span> 19:
<a name="l00325"></a>00325 <span class="comment">// draw self-crossing polygon using the alternate fill rule</span>
<a name="l00326"></a>00326 gc.SetBrushStyle(CGraphicsContext::EDiamondCrossHatchBrush);
<a name="l00327"></a>00327 gc.SetBrushColor(black);
<a name="l00328"></a>00328 gc.DrawPolygon(mypoints,CGraphicsContext::EAlternate);
<a name="l00329"></a>00329 <span class="keywordflow">break</span>;
<a name="l00330"></a>00330 <span class="keywordflow">case</span> 20:
<a name="l00331"></a>00331 {
<a name="l00332"></a>00332 <span class="comment">// draw self-crossing polygon using the alternate fill rule,</span>
<a name="l00333"></a>00333 <span class="comment">// and copy the lhs to the rhs of the screen</span>
<a name="l00334"></a>00334 gc.SetBrushStyle(CGraphicsContext::EDiamondCrossHatchBrush);
<a name="l00335"></a>00335 gc.SetBrushColor(black);
<a name="l00336"></a>00336 gc.DrawPolygon(mypoints,CGraphicsContext::EAlternate);
<a name="l00337"></a>00337 TPoint screenOrigin(0,0); <span class="comment">// top left of the screen</span>
<a name="l00338"></a>00338 TSize halfScreenLR(320,240); <span class="comment">// size of vertical half of screen</span>
<a name="l00339"></a>00339 rect.SetRect(screenOrigin,halfScreenLR); <span class="comment">// lhs of screen</span>
<a name="l00340"></a>00340 TPoint offset(halfScreenLR.iWidth,0); <span class="comment">// half screen width offset</span>
<a name="l00341"></a>00341 gc.CopyRect(offset,rect); <span class="comment">// copy lhs of screen to rhs</span>
<a name="l00342"></a>00342 }
<a name="l00343"></a>00343 <span class="keywordflow">break</span>;
<a name="l00344"></a>00344 <span class="keywordflow">case</span> 21:
<a name="l00345"></a>00345 <span class="comment">// draw some text left justified in a box,</span>
<a name="l00346"></a>00346 <span class="comment">// offset so text is just inside top of box</span>
<a name="l00347"></a>00347 {
<a name="l00348"></a>00348 CFont* font=iMessageFont; <span class="comment">// get the system message font</span>
<a name="l00349"></a>00349 TInt fontAscent(font->AscentInPixels()); <span class="comment">// system message font ascent</span>
<a name="l00350"></a>00350 offset=fontAscent+3; <span class="comment">// add a 3 pixel text line spacing</span>
<a name="l00351"></a>00351 TInt margin=2; <span class="comment">// left margin is two pixels</span>
<a name="l00352"></a>00352 gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
<a name="l00353"></a>00353 gc.SetBrushColor(darkGray);
<a name="l00354"></a>00354 gc.SetPenColor(white);
<a name="l00355"></a>00355 gc.UseFont(iMessageFont);
<a name="l00356"></a>00356 gc.DrawText(KTxtDrawCase21,box,offset,CGraphicsContext::ELeft,margin);
<a name="l00357"></a>00357 }
<a name="l00358"></a>00358 <span class="keywordflow">break</span>;
<a name="l00359"></a>00359 <span class="keywordflow">case</span> 22:
<a name="l00360"></a>00360 <span class="comment">// draw some text centered in a box, (margin is zero)</span>
<a name="l00361"></a>00361 {
<a name="l00362"></a>00362 TInt boxHeight=box.Height(); <span class="comment">// get height of text box</span>
<a name="l00363"></a>00363 CFont* font=iMessageFont; <span class="comment">// get the system message font</span>
<a name="l00364"></a>00364 TInt textHeight(font->HeightInPixels()); <span class="comment">// system message font height</span>
<a name="l00365"></a>00365 offset=(textHeight+boxHeight)/2; <span class="comment">// 1/2 font ht below halfway down box</span>
<a name="l00366"></a>00366 TInt margin=0; <span class="comment">// margin is zero</span>
<a name="l00367"></a>00367 gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
<a name="l00368"></a>00368 gc.SetBrushColor(black);
<a name="l00369"></a>00369 gc.SetPenColor(white);
<a name="l00370"></a>00370 gc.UseFont(iMessageFont);
<a name="l00371"></a>00371 gc.DrawText(KTxtDrawCase22,box,offset,CGraphicsContext::ECenter,margin);
<a name="l00372"></a>00372 }
<a name="l00373"></a>00373 <span class="keywordflow">break</span>;
<a name="l00374"></a>00374 <span class="keywordflow">case</span> 23:
<a name="l00375"></a>00375 <span class="comment">// draw some text right justified in a box,</span>
<a name="l00376"></a>00376 <span class="comment">// offset so text is just inside bottom of box</span>
<a name="l00377"></a>00377 {
<a name="l00378"></a>00378 TInt boxHeight=box.Height(); <span class="comment">// get height of text box</span>
<a name="l00379"></a>00379 CFont* font=iMessageFont; <span class="comment">// get the system message font</span>
<a name="l00380"></a>00380 TInt fontDescent=font->DescentInPixels(); <span class="comment">// system message font descent</span>
<a name="l00381"></a>00381 offset=boxHeight-fontDescent-3;<span class="comment">// offset, 3 pixel text line spacing </span>
<a name="l00382"></a>00382 TInt margin=2; <span class="comment">// right margin is two pixels</span>
<a name="l00383"></a>00383 gc.SetBrushStyle(CGraphicsContext::ESolidBrush);
<a name="l00384"></a>00384 gc.SetBrushColor(liteGray);
<a name="l00385"></a>00385 gc.SetPenColor(darkGray);
<a name="l00386"></a>00386 gc.UseFont(iMessageFont);
<a name="l00387"></a>00387 gc.DrawText(KTxtDrawCase23,box,offset,CGraphicsContext::ERight,margin);
<a name="l00388"></a>00388 }
<a name="l00389"></a>00389 <span class="keywordflow">break</span>;
<a name="l00390"></a>00390 <span class="keywordflow">case</span> 24:
<a name="l00391"></a>00391 {
<a name="l00392"></a>00392 <span class="comment">// draw a cross-hatched box</span>
<a name="l00393"></a>00393 <span class="comment">// then clear a small central rectangle</span>
<a name="l00394"></a>00394 gc.SetBrushColor(darkGray);
<a name="l00395"></a>00395 gc.SetBrushStyle(CGraphicsContext::ESquareCrossHatchBrush);
<a name="l00396"></a>00396 gc.DrawRect(rect);
<a name="l00397"></a>00397 <span class="comment">// clear a small rectangle</span>
<a name="l00398"></a>00398 gc.SetBrushColor(liteGray); <span class="comment">// change the brush color</span>
<a name="l00399"></a>00399 gc.Clear(tinyBox); <span class="comment">// clear to brush color</span>
<a name="l00400"></a>00400 }
<a name="l00401"></a>00401 <span class="keywordflow">break</span>;
<a name="l00402"></a>00402 <span class="keywordflow">case</span> 25:
<a name="l00403"></a>00403 {
<a name="l00404"></a>00404 <span class="comment">// draw a cross-hatched box</span>
<a name="l00405"></a>00405 <span class="comment">// then clear a small central rectangle</span>
<a name="l00406"></a>00406 <span class="comment">// and write some text in it in smallest Swiss font,</span>
<a name="l00407"></a>00407 <span class="comment">// (which is actually a tiny "block" print-preview font)</span>
<a name="l00408"></a>00408 <span class="comment">// starting bottom left (illustrating flicker, overlap, mess)</span>
<a name="l00409"></a>00409 gc.SetBrushColor(darkGray);
<a name="l00410"></a>00410 gc.SetBrushStyle(CGraphicsContext::ESquareCrossHatchBrush);
<a name="l00411"></a>00411 gc.DrawRect(rect);
<a name="l00412"></a>00412 <span class="comment">// clear a small rectangle</span>
<a name="l00413"></a>00413 gc.SetBrushColor(liteGray); <span class="comment">// change the brush color</span>
<a name="l00414"></a>00414 gc.Clear(tinyBox); <span class="comment">// clear to brush color</span>
<a name="l00415"></a>00415 <span class="comment">// get an alternative font</span>
<a name="l00416"></a>00416 CFont* myFont;
<a name="l00417"></a>00417 <a class="code" href="secureclientandserver_8h.html#a5eadd4429627d82193b37536d4faa03a">_LIT</a>(KTxtArial,<span class="stringliteral">"Arial"</span>);
<a name="l00418"></a>00418 TFontSpec myFontSpec(KTxtArial,1); <span class="comment">// to get smallest Arial font</span>
<a name="l00419"></a>00419 CGraphicsDevice* screenDevice=(iCoeEnv->ScreenDevice());
<a name="l00420"></a>00420 screenDevice->GetNearestFontInTwips(myFont,myFontSpec);
<a name="l00421"></a>00421 gc.UseFont(myFont);
<a name="l00422"></a>00422 <span class="comment">// set the text drawing position & draw (demonstrating flicker)</span>
<a name="l00423"></a>00423 TInt fontDescent=myFont->DescentInPixels();
<a name="l00424"></a>00424 TPoint pos(0,tinyBox.Height()-fontDescent);
<a name="l00425"></a>00425 pos+=tinyBox.iTl;
<a name="l00426"></a>00426 gc.DrawText(KTxtDrawCase25,pos);
<a name="l00427"></a>00427 <span class="comment">// discard and destroy the font</span>
<a name="l00428"></a>00428 gc.DiscardFont();
<a name="l00429"></a>00429 screenDevice->ReleaseFont(myFont);
<a name="l00430"></a>00430 }
<a name="l00431"></a>00431 <span class="keywordflow">break</span>;
<a name="l00432"></a>00432 <span class="keywordflow">default</span>:
<a name="l00433"></a>00433 <span class="keywordflow">break</span>;
<a name="l00434"></a>00434 }
<a name="l00435"></a>00435 <span class="keyword">delete</span> mypoints; <span class="comment">// an array must be destroyed after use</span>
<a name="l00436"></a>00436 }
<a name="l00437"></a>00437
<a name="l00438"></a>00438 <span class="keyword">static</span> CArrayFix<TPoint>* CreatePointsArrayL()
<a name="l00439"></a>00439 {
<a name="l00440"></a>00440 CArrayFixFlat<TPoint>* pointsArray = <span class="keyword">new</span> CArrayFixFlat<TPoint>(5);
<a name="l00441"></a>00441
<a name="l00442"></a>00442 TPoint point1(20,20);
<a name="l00443"></a>00443 TPoint point2(100,190);
<a name="l00444"></a>00444 TPoint point3(110,90);
<a name="l00445"></a>00445 TPoint point4(50,150);
<a name="l00446"></a>00446 TPoint point5(200,150);
<a name="l00447"></a>00447
<a name="l00448"></a>00448 pointsArray->AppendL(point1);
<a name="l00449"></a>00449 pointsArray->AppendL(point2);
<a name="l00450"></a>00450 pointsArray->AppendL(point3);
<a name="l00451"></a>00451 pointsArray->AppendL(point4);
<a name="l00452"></a>00452 pointsArray->AppendL(point5);
<a name="l00453"></a>00453
<a name="l00454"></a>00454 <span class="keywordflow">return</span> pointsArray;
<a name="l00455"></a>00455 }
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