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Symbian3/Examples/guid-6013a680-57f9-415b-8851-c4fa63356636/_fonts_8cpp-source.html
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Tue, 30 Mar 2010 11:42:04 +0100
changeset 4 4816d766a08a
parent 1 25a17d01db0c
permissions -rw-r--r--
Week 12 contribution of SDK documentation_content. See release notes for details. Fixes Bug 1892, Bug 1522, Bug 1520, Bug 394, Bug 1319, Bug 344, Bug 1897
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<html><head><meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
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<title>TB10.1 Example Applications: examples/Graphics/Fonts/Fonts.cpp Source File</title>
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<link href="doxygen.css" rel="stylesheet" type="text/css">
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<link href="tabs.css" rel="stylesheet" type="text/css">
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</head><body>
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<!-- Generated by Doxygen 1.5.3 -->
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<h1>examples/Graphics/Fonts/Fonts.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>
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<a name="l00002"></a>00002 <span class="comment">// All rights reserved.</span>
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<a name="l00003"></a>00003 <span class="comment">// This component and the accompanying materials are made available</span>
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<a name="l00004"></a>00004 <span class="comment">// under the terms of "Eclipse Public License v1.0"</span>
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<a name="l00005"></a>00005 <span class="comment">// which accompanies this distribution, and is available</span>
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<a name="l00006"></a>00006 <span class="comment">// at the URL "http://www.eclipse.org/legal/epl-v10.html".</span>
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<a name="l00007"></a>00007 <span class="comment">//</span>
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<a name="l00008"></a>00008 <span class="comment">// Initial Contributors:</span>
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<a name="l00009"></a>00009 <span class="comment">// Nokia Corporation - initial contribution.</span>
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<a name="l00010"></a>00010 <span class="comment">//</span>
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<a name="l00011"></a>00011 <span class="comment">// Contributors:</span>
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<a name="l00012"></a>00012 <span class="comment">//</span>
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<a name="l00013"></a>00013 <span class="comment">// Description:</span>
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<a name="l00014"></a>00014 <span class="comment">//</span>
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<a name="l00015"></a>00015
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<a name="l00016"></a>00016 <span class="preprocessor">#include "FontsGraphicsControl.h"</span>
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<a name="l00017"></a>00017 <span class="preprocessor">#include &lt;coemain.h&gt;</span>
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<a name="l00018"></a>00018
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<a name="l00019"></a><a class="code" href="class_c_font_control.html#d38e1de62323a2d429a6fb8b718a09a4">00019</a> <a class="code" href="class_c_font_control.html#d38e1de62323a2d429a6fb8b718a09a4">CFontControl::CFontControl</a>() {
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<a name="l00020"></a>00020         <span class="comment">// find the number of typefaces</span>
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<a name="l00021"></a>00021         iNumTypefaces = iCoeEnv-&gt;ScreenDevice()-&gt;NumTypefaces();
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<a name="l00022"></a>00022         <span class="comment">// set the number of phases to the number of typefaces</span>
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<a name="l00023"></a>00023         <a class="code" href="class_c_graphic_example_control.html#d4b8d52c91ecbc943c990d9a45c846dc">SetMaxPhases</a>(iNumTypefaces);
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<a name="l00024"></a>00024 }
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<a name="l00025"></a>00025
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<a name="l00026"></a><a class="code" href="class_c_font_control.html#01734ed4fbb9ba859b58061d550185bc">00026</a> <span class="keywordtype">void</span> <a class="code" href="class_c_font_control.html#01734ed4fbb9ba859b58061d550185bc">CFontControl::UpdateModelL</a>()
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<a name="l00027"></a>00027         {
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<a name="l00028"></a>00028         <span class="comment">// set up zoom factor &amp; graphics device map for getting fonts and drawing text</span>
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<a name="l00029"></a>00029         iZoomFactor.SetGraphicsDeviceMap(iCoeEnv-&gt;ScreenDevice());
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<a name="l00030"></a>00030         iZoomFactor.SetZoomFactor(TZoomFactor::EZoomOneToOne);
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<a name="l00031"></a>00031         iDeviceMap = &amp;iZoomFactor;
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<a name="l00032"></a>00032
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<a name="l00033"></a>00033         <span class="comment">// find the font to display this phase</span>
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<a name="l00034"></a>00034         TTypefaceSupport* myTypefaceSupport = <span class="keyword">new</span> TTypefaceSupport;
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<a name="l00035"></a>00035         iCoeEnv-&gt;ScreenDevice()-&gt;TypefaceSupport(*myTypefaceSupport,<a class="code" href="class_c_graphic_example_control.html#10cd59814369e1e7a96e86091214f02c">Phase</a>());
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<a name="l00036"></a>00036         iCurrentFont = myTypefaceSupport-&gt;iTypeface.iName.Des();
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<a name="l00037"></a>00037
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<a name="l00038"></a>00038         <span class="comment">// set up descriptor for commentary area</span>
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<a name="l00039"></a>00039         _LIT(KFormat,<span class="stringliteral">"Typeface index=%d. Name=%S. Num heights=%d. (Num typefaces=%d)"</span>);
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<a name="l00040"></a>00040         TBuf&lt;128&gt; commentaryText;
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<a name="l00041"></a>00041         commentaryText.Format(KFormat,<a class="code" href="class_c_graphic_example_control.html#10cd59814369e1e7a96e86091214f02c">Phase</a>(),&amp;iCurrentFont,myTypefaceSupport-&gt;iNumHeights,iNumTypefaces);
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<a name="l00042"></a>00042         <a class="code" href="class_c_graphic_example_control.html#cd78cd38a2abb1a227870b931cdef1c0">iGraphObserver</a>-&gt;<a class="code" href="class_m_graphics_example_observer.html#73c0f73c82cb076c7bcbe419516b7e7d">NotifyStatus</a>(commentaryText);
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<a name="l00043"></a>00043         <span class="keyword">delete</span> myTypefaceSupport;
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<a name="l00044"></a>00044         };
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<a name="l00045"></a>00045
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<a name="l00046"></a><a class="code" href="class_c_font_control.html#2a86bb82b952f1a59a1d576f332f8ccf">00046</a> <span class="keywordtype">void</span> <a class="code" href="class_c_font_control.html#2a86bb82b952f1a59a1d576f332f8ccf">CFontControl::Draw</a>(<span class="keyword">const</span> TRect&amp; <span class="comment">/* aRect */</span>)<span class="keyword"> const</span>
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<a name="l00047"></a>00047 <span class="keyword">        </span>{
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<a name="l00048"></a>00048         <span class="comment">// setup screen for example</span>
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<a name="l00049"></a>00049         CWindowGc&amp; gc=SystemGc();
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<a name="l00050"></a>00050         gc.Clear();
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<a name="l00051"></a>00051
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<a name="l00052"></a>00052         <span class="comment">// create a centered rectangle of the default size</span>
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<a name="l00053"></a>00053         TRect screenRect=Rect();
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<a name="l00054"></a>00054
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<a name="l00055"></a>00055         <span class="comment">// set up absolute font-spec and text box for 300 twip font</span>
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<a name="l00056"></a>00056         TFontSpec fontSpec(iCurrentFont,300);
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<a name="l00057"></a>00057         <span class="comment">// find the nearest font to the specified one</span>
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<a name="l00058"></a>00058         CFont* screenFont;
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<a name="l00059"></a>00059         iDeviceMap-&gt;GetNearestFontInTwips(screenFont,fontSpec);
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<a name="l00060"></a>00060         <span class="comment">// use it for this graphics context</span>
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<a name="l00061"></a>00061         gc.UseFont(screenFont);
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<a name="l00062"></a>00062
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<a name="l00063"></a>00063         <span class="comment">// get height of screen box</span>
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<a name="l00064"></a>00064     TInt screenHeight=screenRect.Height();
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<a name="l00065"></a>00065         <span class="comment">// get font height</span>
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<a name="l00066"></a>00066     TInt textHeight = screenFont-&gt;HeightInPixels();
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<a name="l00067"></a>00067
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<a name="l00068"></a>00068         <span class="comment">// set up the positioning of the character set rows</span>
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<a name="l00069"></a>00069         TInt exampleMargin = 0;
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<a name="l00070"></a>00070         TInt currentOffset = ((screenHeight+textHeight)/2) - (TInt)(textHeight*2.4);
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<a name="l00071"></a>00071
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<a name="l00072"></a>00072         <span class="comment">// set up descriptors to hold Unicode characters 32 to 255</span>
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<a name="l00073"></a>00073         TBuf&lt;50&gt; buffer;
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<a name="l00074"></a>00074         TInt endPoint[6] = {64,96,138,182,216,255};
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<a name="l00075"></a>00075         TInt count = 32;
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<a name="l00076"></a>00076         <span class="keywordflow">for</span>(TInt pass=0;pass&lt;=5;pass++) {
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<a name="l00077"></a>00077                 <span class="keywordflow">while</span> (count&lt;=endPoint[pass]) {
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<a name="l00078"></a>00078                         buffer.Append((TUint)count);
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<a name="l00079"></a>00079                         count++;
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<a name="l00080"></a>00080                 }
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<a name="l00081"></a>00081                 <span class="comment">// draw the row in the current font</span>
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<a name="l00082"></a>00082                 gc.DrawText(buffer,screenRect,currentOffset,CGraphicsContext::ECenter,exampleMargin);
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<a name="l00083"></a>00083                 currentOffset = currentOffset + (TInt)(textHeight*1.2);
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<a name="l00084"></a>00084                 buffer.Zero();
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<a name="l00085"></a>00085         }
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<a name="l00086"></a>00086
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<a name="l00087"></a>00087         <span class="comment">// discard and release font</span>
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<a name="l00088"></a>00088         gc.DiscardFont();
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<a name="l00089"></a>00089         iDeviceMap-&gt;ReleaseFont(screenFont);
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<a name="l00090"></a>00090         }
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</pre></div><hr size="1"><address style="text-align: right;"><small>Generated on Thu Jan 21 10:32:58 2010 for TB10.1 Example Applications by&nbsp;
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<a href="http://www.doxygen.org/index.html">
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<img src="doxygen.png" alt="doxygen" align="middle" border="0"></a> 1.5.3 </small></address>
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</body>
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</html>
FCL/sftools/depl/docscontent