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<title>Graphic Equalizer 2: C:/Project Marcel & Oliver/Graphic_Equalizer/src/mouse.hcc Source File</title>
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<a class="el" href="dir_000000.html">C:</a> / <a class="el" href="dir_000001.html">Project Marcel & Oliver</a> / <a class="el" href="dir_000002.html">Graphic_Equalizer</a> / <a class="el" href="dir_000004.html">src</a></div>
<h1>mouse.hcc</h1><a href="mouse_8hcc.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment">00001
00021 <span class="comment">/******** System Includes *************/</span>
00022 <span class="preprocessor">#include <stdlib.hch></span>
00023
00024 <span class="preprocessor">#include "pal_master.hch"</span>
00025 <span class="preprocessor">#include "pal_mouse.hch"</span>
00026
00027 <span class="comment">/******** Application Includes ********/</span>
00028 <span class="preprocessor">#include "<a class="code" href="configuration_8hch.html">configuration.hch</a>"</span>
00029 <span class="preprocessor">#include "<a class="code" href="mouse__shared_8hch.html">mouse_shared.hch</a>"</span>
00030 <span class="preprocessor">#include "<a class="code" href="mouse_8hch.html">mouse.hch</a>"</span>
00031
00032 <span class="preprocessor">#if HAVE_DEBUG</span>
00033 <span class="preprocessor"></span><span class="preprocessor"> #include "debug.hch"</span>
00034 <span class="preprocessor">#endif</span>
00035 <span class="preprocessor"></span>
00036
00037
<a name="l00048"></a><a class="code" href="mouse_8hcc.html#a0">00048</a> <span class="keywordtype">void</span> <a class="code" href="mouse_8hcc.html#a0">mouse_main</a>(<a class="code" href="structmousedata__t.html">mousedata_t</a> *mousedata) {
00049 <span class="keywordtype">unsigned</span> 18 touch_sampler;
00050 <span class="keywordtype">unsigned</span> 10 x, oldx;
00051 <span class="keywordtype">unsigned</span> 9 y, oldy;
00052 <span class="keywordtype">unsigned</span> 3 mousestate, oldmousestate;
00053 <span class="keywordtype">unsigned</span> 1 touch, touched, oldtouched;
00054
00055 <span class="comment">/*</span>
00056 <span class="comment"> * We only check for mouse states once every 2^18 time. This to</span>
00057 <span class="comment"> * overcome the sampling of the 'Touch' state of the RC200 libs. When</span>
00058 <span class="comment"> * using newer libs this might be overkill, e.g. smaller values may</span>
00059 <span class="comment"> * work or sampling all together will be redundant.</span>
00060 <span class="comment"> */</span>
00061 touch_sampler = 1;
00062 <span class="keywordflow">while</span> (TRUE) {
00063 <span class="keywordflow">if</span> (!touch_sampler) {
00064 <span class="comment">/*</span>
00065 <span class="comment"> * We are here ready to set mouse states. We compare</span>
00066 <span class="comment"> * current and previous states and thereby determine</span>
00067 <span class="comment"> * the state to send to others</span>
00068 <span class="comment"> */</span>
00069 <span class="keywordflow">if</span> (touched) {
00070 <span class="keywordflow">if</span>(oldtouched) {
00071 mousestate = MOUSE_STATE_DOWN;
00072 } <span class="keywordflow">else</span> {
00073 mousestate = MOUSE_STATE_ON_PRESS;
00074 }
00075 oldtouched = TRUE;
00076 } <span class="keywordflow">else</span> {
00077 <span class="keywordflow">if</span>(oldtouched) {
00078 mousestate = MOUSE_STATE_ON_RELEASE;
00079 } <span class="keywordflow">else</span> {
00080 mousestate = MOUSE_STATE_UP;
00081 }
00082 oldtouched = FALSE;
00083 }
00084 <span class="comment">/*</span>
00085 <span class="comment"> * We have now processed our Touch. Reset it for the</span>
00086 <span class="comment"> * next run.</span>
00087 <span class="comment"> */</span>
00088 touched = FALSE;
00089
00090 <span class="comment">/*</span>
00091 <span class="comment"> * In the rare occurance that we receive values</span>
00092 <span class="comment"> * beyond our range, we set them to some sane</span>
00093 <span class="comment"> * values here.</span>
00094 <span class="comment"> */</span>
00095 x = (x > 639) ? 0 : x;
00096 y = (y > 479) ? 0 : y;
00097
00098 <span class="comment">/*</span>
00099 <span class="comment"> * Compare Previous States and Coordinates to determine</span>
00100 <span class="comment"> * wether they have changed. If so, Copy them into</span>
00101 <span class="comment"> * shared memory, notify the listening processes and</span>
00102 <span class="comment"> * Set the new as previous values for the next run. We</span>
00103 <span class="comment"> * can only do this when the display has handled all</span>
00104 <span class="comment"> * changes.</span>
00105 <span class="comment"> */</span>
00106 <span class="keywordflow">if</span> (((oldmousestate != mousestate) || (oldx != x) || (oldy != y)) && (<a class="code" href="mouse__shared_8hch.html#a1">MOUSE_NOT_UPDATED</a> == mousedata-><a class="code" href="structmousedata__t.html#o3">status</a>)) {
00107 <span class="comment">//par {</span>
00108 oldx = x;
00109 oldy = y;
00110 oldmousestate = mousestate;
00111 mousedata-><a class="code" href="structmousedata__t.html#o0">x</a> = x;
00112 mousedata-><a class="code" href="structmousedata__t.html#o1">y</a> = 0 @ y;
00113 mousedata-><a class="code" href="structmousedata__t.html#o2">state</a> = mousestate;
00114 mousedata-><a class="code" href="structmousedata__t.html#o3">status</a> = MOUSE_UPDATED;
00115 <span class="comment">//}</span>
00116 }
00117 }
00118
00119 <span class="comment">/*</span>
00120 <span class="comment"> * Read the current X and Y of the 'cursor' and register wether</span>
00121 <span class="comment"> * the display was touched. If touched store this in a local</span>
00122 <span class="comment"> * store. This we do to catch the sampling of the RC200 lib.</span>
00123 <span class="comment"> */</span>
00124 RC200TouchScreenReadScaled(&x, &y, &touch);
00125 <span class="keywordflow">if</span> (touch) {
00126 touched = TRUE;
00127 }
00128
00129 touch_sampler++;
00130 }
00131 } <span class="comment">/* --- mouse_main() --- */</span>
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