Ticket #9904: report-d3b55a.html

File report-d3b55a.html, 60.6 KB (added by mt, 11 years ago)

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2<html>
3<head>
4<title>/home/haiku/haiku/haiku/src/add-ons/screen_savers/spider/SpiderSaver.cpp</title>
5<style type="text/css">
6 body { color:#000000; background-color:#ffffff }
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55</head>
56<body>
57<!-- BUGDESC Called C++ object pointer is null -->
58
59<!-- BUGTYPE Called C++ object pointer is null -->
60
61<!-- BUGCATEGORY Logic error -->
62
63<!-- BUGFILE /home/haiku/haiku/haiku/src/add-ons/screen_savers/spider/SpiderSaver.cpp -->
64
65<!-- BUGLINE 296 -->
66
67<!-- BUGPATHLENGTH 10 -->
68
69<!-- BUGMETAEND -->
70<!-- REPORTHEADER -->
71<h3>Bug Summary</h3>
72<table class="simpletable">
73<tr><td class="rowname">File:</td><td>src/add-ons/screen_savers/spider/SpiderSaver.cpp</td></tr>
74<tr><td class="rowname">Location:</td><td><a href="#EndPath">line 296, column 20</a></td></tr>
75<tr><td class="rowname">Description:</td><td>Called C++ object pointer is null</td></tr>
76</table>
77<!-- REPORTSUMMARYEXTRA -->
78<h3>Annotated Source Code</h3>
79<table class="code">
80<tr><td class="num" id="LN1">1</td><td class="line"><span class='comment'>/*</span></td></tr>
81<tr><td class="num" id="LN2">2</td><td class="line"> <span class='comment'>* Copyright 2007-2009, Haiku, Inc. All rights reserved.</span></td></tr>
82<tr><td class="num" id="LN3">3</td><td class="line"> <span class='comment'>* Distributed under the terms of the MIT License.</span></td></tr>
83<tr><td class="num" id="LN4">4</td><td class="line"> <span class='comment'>*</span></td></tr>
84<tr><td class="num" id="LN5">5</td><td class="line"> <span class='comment'>* Authors:</span></td></tr>
85<tr><td class="num" id="LN6">6</td><td class="line"> <span class='comment'>* Stephan Aßmus &lt;superstippi@gmx.de&gt;</span></td></tr>
86<tr><td class="num" id="LN7">7</td><td class="line"> <span class='comment'>*/</span></td></tr>
87<tr><td class="num" id="LN8">8</td><td class="line"><span class='directive'>#include "SpiderSaver.h"</span></td></tr>
88<tr><td class="num" id="LN9">9</td><td class="line"> </td></tr>
89<tr><td class="num" id="LN10">10</td><td class="line"><span class='directive'>#include &lt;math.h&gt;</span></td></tr>
90<tr><td class="num" id="LN11">11</td><td class="line"><span class='directive'>#include &lt;stdio.h&gt;</span></td></tr>
91<tr><td class="num" id="LN12">12</td><td class="line"><span class='directive'>#include &lt;stdlib.h&gt;</span></td></tr>
92<tr><td class="num" id="LN13">13</td><td class="line"><span class='directive'>#include &lt;string.h&gt;</span></td></tr>
93<tr><td class="num" id="LN14">14</td><td class="line"> </td></tr>
94<tr><td class="num" id="LN15">15</td><td class="line"><span class='directive'>#include &lt;Bitmap.h&gt;</span></td></tr>
95<tr><td class="num" id="LN16">16</td><td class="line"><span class='directive'>#include &lt;Catalog.h&gt;</span></td></tr>
96<tr><td class="num" id="LN17">17</td><td class="line"><span class='directive'>#include &lt;Message.h&gt;</span></td></tr>
97<tr><td class="num" id="LN18">18</td><td class="line"><span class='directive'>#include &lt;Menu.h&gt;</span></td></tr>
98<tr><td class="num" id="LN19">19</td><td class="line"><span class='directive'>#include &lt;MenuField.h&gt;</span></td></tr>
99<tr><td class="num" id="LN20">20</td><td class="line"><span class='directive'>#include &lt;MenuItem.h&gt;</span></td></tr>
100<tr><td class="num" id="LN21">21</td><td class="line"><span class='directive'>#include &lt;Slider.h&gt;</span></td></tr>
101<tr><td class="num" id="LN22">22</td><td class="line"><span class='directive'>#include &lt;StringView.h&gt;</span></td></tr>
102<tr><td class="num" id="LN23">23</td><td class="line"> </td></tr>
103<tr><td class="num" id="LN24">24</td><td class="line"><span class='directive'>#include "Polygon.h"</span></td></tr>
104<tr><td class="num" id="LN25">25</td><td class="line"><span class='directive'>#include "PolygonQueue.h"</span></td></tr>
105<tr><td class="num" id="LN26">26</td><td class="line"> </td></tr>
106<tr><td class="num" id="LN27">27</td><td class="line"><span class='directive'>#undef <span class='macro'>B_TRANSLATION_CONTEXT<span class='expansion'>"Screensaver Spider"</span></span></span></td></tr>
107<tr><td class="num" id="LN28">28</td><td class="line"><span class='directive'>#define <span class='macro'>B_TRANSLATION_CONTEXT<span class='expansion'>"Screensaver Spider"</span></span> "Screensaver Spider"</span></td></tr>
108<tr><td class="num" id="LN29">29</td><td class="line"> </td></tr>
109<tr><td class="num" id="LN30">30</td><td class="line"><span class='keyword'>enum</span> {</td></tr>
110<tr><td class="num" id="LN31">31</td><td class="line"> MSG_QUEUE_NUMBER = 'qunm',</td></tr>
111<tr><td class="num" id="LN32">32</td><td class="line"> MSG_POLY_NUMBER = 'plnm',</td></tr>
112<tr><td class="num" id="LN33">33</td><td class="line"> MSG_QUEUE_DEPTH = 'qudp',</td></tr>
113<tr><td class="num" id="LN34">34</td><td class="line"> MSG_COLOR = 'colr',</td></tr>
114<tr><td class="num" id="LN35">35</td><td class="line">};</td></tr>
115<tr><td class="num" id="LN36">36</td><td class="line"> </td></tr>
116<tr><td class="num" id="LN37">37</td><td class="line"><span class='directive'>#define <span class='macro'>MIN_POLY_POINTS<span class='expansion'>3</span></span> 3</span></td></tr>
117<tr><td class="num" id="LN38">38</td><td class="line"><span class='directive'>#define <span class='macro'>MAX_POLY_POINTS<span class='expansion'>10</span></span> 10</span></td></tr>
118<tr><td class="num" id="LN39">39</td><td class="line"><span class='directive'>#define <span class='macro'>MIN_QUEUE_DEPTH<span class='expansion'>40</span></span> 40</span></td></tr>
119<tr><td class="num" id="LN40">40</td><td class="line"><span class='directive'>#define <span class='macro'>MAX_QUEUE_DEPTH<span class='expansion'>160</span></span> 160</span></td></tr>
120<tr><td class="num" id="LN41">41</td><td class="line"><span class='directive'>#define <span class='macro'>MAX_QUEUE_NUMBER<span class='expansion'>40</span></span> 40</span></td></tr>
121<tr><td class="num" id="LN42">42</td><td class="line"> </td></tr>
122<tr><td class="num" id="LN43">43</td><td class="line"><span class='keyword'>enum</span> {</td></tr>
123<tr><td class="num" id="LN44">44</td><td class="line"> RED = 1,</td></tr>
124<tr><td class="num" id="LN45">45</td><td class="line"> GREEN = 2,</td></tr>
125<tr><td class="num" id="LN46">46</td><td class="line"> BLUE = 3,</td></tr>
126<tr><td class="num" id="LN47">47</td><td class="line"> YELLOW = 4,</td></tr>
127<tr><td class="num" id="LN48">48</td><td class="line"> PURPLE = 5,</td></tr>
128<tr><td class="num" id="LN49">49</td><td class="line"> CYAN = 6,</td></tr>
129<tr><td class="num" id="LN50">50</td><td class="line"> GRAY = 7,</td></tr>
130<tr><td class="num" id="LN51">51</td><td class="line">};</td></tr>
131<tr><td class="num" id="LN52">52</td><td class="line"> </td></tr>
132<tr><td class="num" id="LN53">53</td><td class="line"><span class='comment'>// MAIN INSTANTIATION FUNCTION</span></td></tr>
133<tr><td class="num" id="LN54">54</td><td class="line"><span class='keyword'>extern</span> <span class='string_literal'>"C"</span> _EXPORT BScreenSaver*</td></tr>
134<tr><td class="num" id="LN55">55</td><td class="line">instantiate_screen_saver(BMessage *message, image_id image)</td></tr>
135<tr><td class="num" id="LN56">56</td><td class="line">{</td></tr>
136<tr><td class="num" id="LN57">57</td><td class="line"> <span class='keyword'>return</span> <span class='keyword'>new</span> SpiderSaver(message, image);</td></tr>
137<tr><td class="num" id="LN58">58</td><td class="line">}</td></tr>
138<tr><td class="num" id="LN59">59</td><td class="line"> </td></tr>
139<tr><td class="num" id="LN60">60</td><td class="line"><span class='comment'>// constructor</span></td></tr>
140<tr><td class="num" id="LN61">61</td><td class="line">SpiderSaver::SpiderSaver(BMessage *message, image_id id)</td></tr>
141<tr><td class="num" id="LN62">62</td><td class="line"> : BScreenSaver(message, id),</td></tr>
142<tr><td class="num" id="LN63">63</td><td class="line"> fBackBitmap(<span class='macro'>NULL<span class='expansion'>__null</span></span>),</td></tr>
143<tr><td class="num" id="LN64">64</td><td class="line"> fBackView(<span class='macro'>NULL<span class='expansion'>__null</span></span>),</td></tr>
144<tr><td class="num" id="LN65">65</td><td class="line"> fQueues(<span class='keyword'>new</span> PolygonQueue*[<span class='macro'>MAX_QUEUE_NUMBER<span class='expansion'>40</span></span>]),</td></tr>
145<tr><td class="num" id="LN66">66</td><td class="line"> fQueueNumber(20),</td></tr>
146<tr><td class="num" id="LN67">67</td><td class="line"> fMaxPolyPoints(<span class='macro'>MAX_POLY_POINTS<span class='expansion'>10</span></span>),</td></tr>
147<tr><td class="num" id="LN68">68</td><td class="line"> fMaxQueueDepth(<span class='macro'>MAX_QUEUE_DEPTH<span class='expansion'>160</span></span>),</td></tr>
148<tr><td class="num" id="LN69">69</td><td class="line"> fColor(RED)</td></tr>
149<tr><td class="num" id="LN70">70</td><td class="line">{</td></tr>
150<tr><td class="num" id="LN71">71</td><td class="line"> <span class='keyword'>for</span> (int32 i = 0; i &lt; <span class='macro'>MAX_QUEUE_NUMBER<span class='expansion'>40</span></span>; i++)</td></tr>
151<tr><td class="num" id="LN72">72</td><td class="line"> fQueues[i] = <span class='macro'>NULL<span class='expansion'>__null</span></span>;</td></tr>
152<tr><td class="num" id="LN73">73</td><td class="line"> <span class='keyword'>if</span> (message) {</td></tr>
153<tr><td class="num" id="LN74">74</td><td class="line"> int32 value;</td></tr>
154<tr><td class="num" id="LN75">75</td><td class="line"> <span class='keyword'>if</span> (message-&gt;FindInt32(<span class='string_literal'>"queue number"</span>, &amp;value) == <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>)</td></tr>
155<tr><td class="num" id="LN76">76</td><td class="line"> fQueueNumber = value;</td></tr>
156<tr><td class="num" id="LN77">77</td><td class="line"> <span class='keyword'>if</span> (message-&gt;FindInt32(<span class='string_literal'>"poly points"</span>, &amp;value) == <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>)</td></tr>
157<tr><td class="num" id="LN78">78</td><td class="line"> fMaxPolyPoints = value;</td></tr>
158<tr><td class="num" id="LN79">79</td><td class="line"> <span class='keyword'>if</span> (message-&gt;FindInt32(<span class='string_literal'>"queue depth"</span>, &amp;value) == <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>)</td></tr>
159<tr><td class="num" id="LN80">80</td><td class="line"> fMaxQueueDepth = value;</td></tr>
160<tr><td class="num" id="LN81">81</td><td class="line"> <span class='keyword'>if</span> (message-&gt;FindInt32(<span class='string_literal'>"color"</span>, &amp;value) == <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>)</td></tr>
161<tr><td class="num" id="LN82">82</td><td class="line"> fColor = value;</td></tr>
162<tr><td class="num" id="LN83">83</td><td class="line"> }</td></tr>
163<tr><td class="num" id="LN84">84</td><td class="line"> srand48((<span class='keyword'>long</span> <span class='keyword'>int</span>)system_time());</td></tr>
164<tr><td class="num" id="LN85">85</td><td class="line">}</td></tr>
165<tr><td class="num" id="LN86">86</td><td class="line"> </td></tr>
166<tr><td class="num" id="LN87">87</td><td class="line"><span class='comment'>// destructor</span></td></tr>
167<tr><td class="num" id="LN88">88</td><td class="line">SpiderSaver::~SpiderSaver()</td></tr>
168<tr><td class="num" id="LN89">89</td><td class="line">{</td></tr>
169<tr><td class="num" id="LN90">90</td><td class="line"> _Cleanup();</td></tr>
170<tr><td class="num" id="LN91">91</td><td class="line"> <span class='keyword'>delete</span>[] fQueues;</td></tr>
171<tr><td class="num" id="LN92">92</td><td class="line">}</td></tr>
172<tr><td class="num" id="LN93">93</td><td class="line"> </td></tr>
173<tr><td class="num" id="LN94">94</td><td class="line"><span class='comment'>// StartConfig</span></td></tr>
174<tr><td class="num" id="LN95">95</td><td class="line"><span class='keyword'>void</span></td></tr>
175<tr><td class="num" id="LN96">96</td><td class="line">SpiderSaver::StartConfig(BView *view)</td></tr>
176<tr><td class="num" id="LN97">97</td><td class="line">{</td></tr>
177<tr><td class="num" id="LN98">98</td><td class="line"> SpiderView* configView = <span class='keyword'>new</span> SpiderView(view-&gt;Bounds(), <span class='keyword'>this</span>,</td></tr>
178<tr><td class="num" id="LN99">99</td><td class="line"> fQueueNumber, fMaxPolyPoints, fMaxQueueDepth, fColor);</td></tr>
179<tr><td class="num" id="LN100">100</td><td class="line"> view-&gt;AddChild(configView);</td></tr>
180<tr><td class="num" id="LN101">101</td><td class="line">}</td></tr>
181<tr><td class="num" id="LN102">102</td><td class="line"> </td></tr>
182<tr><td class="num" id="LN103">103</td><td class="line"><span class='comment'>// StartSaver</span></td></tr>
183<tr><td class="num" id="LN104">104</td><td class="line">status_t</td></tr>
184<tr><td class="num" id="LN105">105</td><td class="line">SpiderSaver::StartSaver(BView *v, <span class='keyword'>bool</span> preview)</td></tr>
185<tr><td class="num" id="LN106">106</td><td class="line">{</td></tr>
186<tr><td class="num" id="LN107">107</td><td class="line"> SetTickSize(50000);</td></tr>
187<tr><td class="num" id="LN108">108</td><td class="line"> </td></tr>
188<tr><td class="num" id="LN109">109</td><td class="line"> fPreview = preview;</td></tr>
189<tr><td class="num" id="LN110">110</td><td class="line"> fBounds = v-&gt;Bounds();</td></tr>
190<tr><td class="num" id="LN111">111</td><td class="line"> _Init(fBounds);</td></tr>
191<tr><td class="num" id="LN112">112</td><td class="line"> </td></tr>
192<tr><td class="num" id="LN113">113</td><td class="line"> <span class='keyword'>return</span> <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>;</td></tr>
193<tr><td class="num" id="LN114">114</td><td class="line">}</td></tr>
194<tr><td class="num" id="LN115">115</td><td class="line"> </td></tr>
195<tr><td class="num" id="LN116">116</td><td class="line"><span class='comment'>// StopSaver</span></td></tr>
196<tr><td class="num" id="LN117">117</td><td class="line"><span class='keyword'>void</span></td></tr>
197<tr><td class="num" id="LN118">118</td><td class="line">SpiderSaver::StopSaver()</td></tr>
198<tr><td class="num" id="LN119">119</td><td class="line">{</td></tr>
199<tr><td class="num" id="LN120">120</td><td class="line"> _Cleanup();</td></tr>
200<tr><td class="num" id="LN121">121</td><td class="line">}</td></tr>
201<tr><td class="num" id="LN122">122</td><td class="line"> </td></tr>
202<tr><td class="num" id="LN123">123</td><td class="line"><span class='comment'>// Draw</span></td></tr>
203<tr><td class="num" id="LN124">124</td><td class="line"><span class='keyword'>void</span></td></tr>
204<tr><td class="num" id="LN125">125</td><td class="line">SpiderSaver::Draw(BView *view, int32 frame)</td></tr>
205<tr><td class="num" id="LN126">126</td><td class="line">{</td></tr>
206<tr><td class="num" id="LN127">127</td><td class="line"> fLocker.Lock();</td></tr>
207<tr><td class="num" id="LN128">128</td><td class="line"> <span class='keyword'>for</span> (uint32 i = 0; i &lt; fQueueNumber; i++) {</td></tr>
208<tr><td class="num"></td><td class="line"><div id="Path1" class="msg msgControl" style="margin-left:9ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">1</div></td><td>Loop condition is true. Entering loop body</td><td><div class="PathNav"><a href="#Path2" title="Next event (2)">&#x2192;</a></div></td></tr></table></div></td></tr>
209<tr><td class="num"></td><td class="line"><div id="Path3" class="msg msgControl" style="margin-left:9ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">3</div></td><td><div class="PathNav"><a href="#Path2" title="Previous event (2)">&#x2190;</a></div></td></td><td>Loop condition is false. Execution continues on line 132</td><td><div class="PathNav"><a href="#Path4" title="Next event (4)">&#x2192;</a></div></td></tr></table></div></td></tr>
210<tr><td class="num" id="LN129">129</td><td class="line"> <span class='keyword'>if</span> (fQueues[i])</td></tr>
211<tr><td class="num"></td><td class="line"><div id="Path2" class="msg msgControl" style="margin-left:17ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">2</div></td><td><div class="PathNav"><a href="#Path1" title="Previous event (1)">&#x2190;</a></div></td></td><td>Taking false branch</td><td><div class="PathNav"><a href="#Path3" title="Next event (3)">&#x2192;</a></div></td></tr></table></div></td></tr>
212<tr><td class="num" id="LN130">130</td><td class="line"> fQueues[i]-&gt;Step();</td></tr>
213<tr><td class="num" id="LN131">131</td><td class="line"> }</td></tr>
214<tr><td class="num" id="LN132">132</td><td class="line"> <span class='keyword'>if</span> (fBackView) {</td></tr>
215<tr><td class="num"></td><td class="line"><div id="Path4" class="msg msgControl" style="margin-left:9ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">4</div></td><td><div class="PathNav"><a href="#Path3" title="Previous event (3)">&#x2190;</a></div></td></td><td>Taking true branch</td><td><div class="PathNav"><a href="#Path5" title="Next event (5)">&#x2192;</a></div></td></tr></table></div></td></tr>
216<tr><td class="num" id="LN133">133</td><td class="line"> <span class='keyword'>if</span> (fBackBitmap-&gt;Lock()) {</td></tr>
217<tr><td class="num"></td><td class="line"><div id="Path5" class="msg msgControl" style="margin-left:17ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">5</div></td><td><div class="PathNav"><a href="#Path4" title="Previous event (4)">&#x2190;</a></div></td></td><td>Taking true branch</td><td><div class="PathNav"><a href="#Path6" title="Next event (6)">&#x2192;</a></div></td></tr></table></div></td></tr>
218<tr><td class="num" id="LN134">134</td><td class="line"> <span class="mrange">_DrawInto(fBackView)</span>;</td></tr>
219<tr><td class="num"></td><td class="line"><div id="Path6" class="msg msgEvent" style="margin-left:25ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexEvent">6</div></td><td><div class="PathNav"><a href="#Path5" title="Previous event (5)">&#x2190;</a></div></td></td><td>Calling 'SpiderSaver::_DrawInto'</td><td><div class="PathNav"><a href="#Path7" title="Next event (7)">&#x2192;</a></div></td></tr></table></div></td></tr>
220<tr><td class="num" id="LN135">135</td><td class="line"> fBackView-&gt;Sync();</td></tr>
221<tr><td class="num" id="LN136">136</td><td class="line"> fBackBitmap-&gt;Unlock();</td></tr>
222<tr><td class="num" id="LN137">137</td><td class="line"> }</td></tr>
223<tr><td class="num" id="LN138">138</td><td class="line"> view-&gt;DrawBitmap(fBackBitmap, BPoint(0.0, 0.0));</td></tr>
224<tr><td class="num" id="LN139">139</td><td class="line"> }</td></tr>
225<tr><td class="num" id="LN140">140</td><td class="line"> fLocker.Unlock();</td></tr>
226<tr><td class="num" id="LN141">141</td><td class="line">}</td></tr>
227<tr><td class="num" id="LN142">142</td><td class="line"> </td></tr>
228<tr><td class="num" id="LN143">143</td><td class="line"><span class='comment'>// SaveState</span></td></tr>
229<tr><td class="num" id="LN144">144</td><td class="line">status_t</td></tr>
230<tr><td class="num" id="LN145">145</td><td class="line">SpiderSaver::SaveState(BMessage* into) <span class='keyword'>const</span></td></tr>
231<tr><td class="num" id="LN146">146</td><td class="line">{</td></tr>
232<tr><td class="num" id="LN147">147</td><td class="line"> <span class='keyword'>if</span> (into) {</td></tr>
233<tr><td class="num" id="LN148">148</td><td class="line"> into-&gt;AddInt32(<span class='string_literal'>"queue number"</span>, (int32)fQueueNumber);</td></tr>
234<tr><td class="num" id="LN149">149</td><td class="line"> into-&gt;AddInt32(<span class='string_literal'>"poly points"</span>, (int32)fMaxPolyPoints);</td></tr>
235<tr><td class="num" id="LN150">150</td><td class="line"> into-&gt;AddInt32(<span class='string_literal'>"queue depth"</span>, (int32)fMaxQueueDepth);</td></tr>
236<tr><td class="num" id="LN151">151</td><td class="line"> into-&gt;AddInt32(<span class='string_literal'>"color"</span>, (int32)fColor);</td></tr>
237<tr><td class="num" id="LN152">152</td><td class="line"> <span class='keyword'>return</span> <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>;</td></tr>
238<tr><td class="num" id="LN153">153</td><td class="line"> }</td></tr>
239<tr><td class="num" id="LN154">154</td><td class="line"> <span class='keyword'>return</span> <span class='macro'>B_BAD_VALUE<span class='expansion'>((-2147483647 - 1) + 5)</span></span>;</td></tr>
240<tr><td class="num" id="LN155">155</td><td class="line">}</td></tr>
241<tr><td class="num" id="LN156">156</td><td class="line"> </td></tr>
242<tr><td class="num" id="LN157">157</td><td class="line"><span class='comment'>// SetQueueNumber</span></td></tr>
243<tr><td class="num" id="LN158">158</td><td class="line"><span class='keyword'>void</span></td></tr>
244<tr><td class="num" id="LN159">159</td><td class="line">SpiderSaver::SetQueueNumber(uint32 number)</td></tr>
245<tr><td class="num" id="LN160">160</td><td class="line">{</td></tr>
246<tr><td class="num" id="LN161">161</td><td class="line"> fLocker.Lock();</td></tr>
247<tr><td class="num" id="LN162">162</td><td class="line"> _Cleanup();</td></tr>
248<tr><td class="num" id="LN163">163</td><td class="line"> fQueueNumber = number;</td></tr>
249<tr><td class="num" id="LN164">164</td><td class="line"> _Init(fBounds);</td></tr>
250<tr><td class="num" id="LN165">165</td><td class="line"> fLocker.Unlock();</td></tr>
251<tr><td class="num" id="LN166">166</td><td class="line">}</td></tr>
252<tr><td class="num" id="LN167">167</td><td class="line"> </td></tr>
253<tr><td class="num" id="LN168">168</td><td class="line"><span class='comment'>// SetQueueDepth</span></td></tr>
254<tr><td class="num" id="LN169">169</td><td class="line"><span class='keyword'>void</span></td></tr>
255<tr><td class="num" id="LN170">170</td><td class="line">SpiderSaver::SetQueueDepth(uint32 maxDepth)</td></tr>
256<tr><td class="num" id="LN171">171</td><td class="line">{</td></tr>
257<tr><td class="num" id="LN172">172</td><td class="line"> fLocker.Lock();</td></tr>
258<tr><td class="num" id="LN173">173</td><td class="line"> _Cleanup();</td></tr>
259<tr><td class="num" id="LN174">174</td><td class="line"> fMaxQueueDepth = maxDepth;</td></tr>
260<tr><td class="num" id="LN175">175</td><td class="line"> _Init(fBounds);</td></tr>
261<tr><td class="num" id="LN176">176</td><td class="line"> fLocker.Unlock();</td></tr>
262<tr><td class="num" id="LN177">177</td><td class="line">}</td></tr>
263<tr><td class="num" id="LN178">178</td><td class="line"> </td></tr>
264<tr><td class="num" id="LN179">179</td><td class="line"><span class='comment'>// SetPolyPoints</span></td></tr>
265<tr><td class="num" id="LN180">180</td><td class="line"><span class='keyword'>void</span></td></tr>
266<tr><td class="num" id="LN181">181</td><td class="line">SpiderSaver::SetPolyPoints(uint32 maxPoints)</td></tr>
267<tr><td class="num" id="LN182">182</td><td class="line">{</td></tr>
268<tr><td class="num" id="LN183">183</td><td class="line"> fLocker.Lock();</td></tr>
269<tr><td class="num" id="LN184">184</td><td class="line"> _Cleanup();</td></tr>
270<tr><td class="num" id="LN185">185</td><td class="line"> fMaxPolyPoints = maxPoints;</td></tr>
271<tr><td class="num" id="LN186">186</td><td class="line"> _Init(fBounds);</td></tr>
272<tr><td class="num" id="LN187">187</td><td class="line"> fLocker.Unlock();</td></tr>
273<tr><td class="num" id="LN188">188</td><td class="line">}</td></tr>
274<tr><td class="num" id="LN189">189</td><td class="line"> </td></tr>
275<tr><td class="num" id="LN190">190</td><td class="line"><span class='comment'>// SetColor</span></td></tr>
276<tr><td class="num" id="LN191">191</td><td class="line"><span class='keyword'>void</span></td></tr>
277<tr><td class="num" id="LN192">192</td><td class="line">SpiderSaver::SetColor(uint32 color)</td></tr>
278<tr><td class="num" id="LN193">193</td><td class="line">{</td></tr>
279<tr><td class="num" id="LN194">194</td><td class="line"> fLocker.Lock();</td></tr>
280<tr><td class="num" id="LN195">195</td><td class="line"> _Cleanup();</td></tr>
281<tr><td class="num" id="LN196">196</td><td class="line"> fColor = color;</td></tr>
282<tr><td class="num" id="LN197">197</td><td class="line"> _Init(fBounds);</td></tr>
283<tr><td class="num" id="LN198">198</td><td class="line"> fLocker.Unlock();</td></tr>
284<tr><td class="num" id="LN199">199</td><td class="line">}</td></tr>
285<tr><td class="num" id="LN200">200</td><td class="line"> </td></tr>
286<tr><td class="num" id="LN201">201</td><td class="line"><span class='comment'>// _Init</span></td></tr>
287<tr><td class="num" id="LN202">202</td><td class="line"><span class='keyword'>void</span></td></tr>
288<tr><td class="num" id="LN203">203</td><td class="line">SpiderSaver::_Init(BRect bounds)</td></tr>
289<tr><td class="num" id="LN204">204</td><td class="line">{</td></tr>
290<tr><td class="num" id="LN205">205</td><td class="line"> _AllocBackBitmap(bounds.Width(), bounds.Height());</td></tr>
291<tr><td class="num" id="LN206">206</td><td class="line"> uint32 minPoints = fMaxPolyPoints / 2;</td></tr>
292<tr><td class="num" id="LN207">207</td><td class="line"> uint32 maxPoints = fMaxPolyPoints;</td></tr>
293<tr><td class="num" id="LN208">208</td><td class="line"> uint32 minQueueDepth = fMaxQueueDepth / 2;</td></tr>
294<tr><td class="num" id="LN209">209</td><td class="line"> uint32 maxQueueDepth = fMaxQueueDepth;</td></tr>
295<tr><td class="num" id="LN210">210</td><td class="line"> <span class='keyword'>if</span> (fPreview) {</td></tr>
296<tr><td class="num" id="LN211">211</td><td class="line"> minQueueDepth /= 4;</td></tr>
297<tr><td class="num" id="LN212">212</td><td class="line"> maxQueueDepth /= 4;</td></tr>
298<tr><td class="num" id="LN213">213</td><td class="line"> }</td></tr>
299<tr><td class="num" id="LN214">214</td><td class="line"> <span class='keyword'>for</span> (uint32 i = 0; i &lt; fQueueNumber; i++)</td></tr>
300<tr><td class="num" id="LN215">215</td><td class="line"> fQueues[i] = <span class='keyword'>new</span> PolygonQueue(<span class='keyword'>new</span> Polygon(bounds, minPoints</td></tr>
301<tr><td class="num" id="LN216">216</td><td class="line"> + lrand48()</td></tr>
302<tr><td class="num" id="LN217">217</td><td class="line"> % (maxPoints</td></tr>
303<tr><td class="num" id="LN218">218</td><td class="line"> - minPoints)),</td></tr>
304<tr><td class="num" id="LN219">219</td><td class="line"> minQueueDepth + lrand48() % (maxQueueDepth</td></tr>
305<tr><td class="num" id="LN220">220</td><td class="line"> - minQueueDepth));</td></tr>
306<tr><td class="num" id="LN221">221</td><td class="line">}</td></tr>
307<tr><td class="num" id="LN222">222</td><td class="line"> </td></tr>
308<tr><td class="num" id="LN223">223</td><td class="line"><span class='comment'>// _Cleanup</span></td></tr>
309<tr><td class="num" id="LN224">224</td><td class="line"><span class='keyword'>void</span></td></tr>
310<tr><td class="num" id="LN225">225</td><td class="line">SpiderSaver::_Cleanup()</td></tr>
311<tr><td class="num" id="LN226">226</td><td class="line">{</td></tr>
312<tr><td class="num" id="LN227">227</td><td class="line"> _FreeBackBitmap();</td></tr>
313<tr><td class="num" id="LN228">228</td><td class="line"> <span class='keyword'>for</span> (int32 i = 0; i &lt; <span class='macro'>MAX_QUEUE_NUMBER<span class='expansion'>40</span></span>; i++) {</td></tr>
314<tr><td class="num" id="LN229">229</td><td class="line"> <span class='keyword'>delete</span> fQueues[i];</td></tr>
315<tr><td class="num" id="LN230">230</td><td class="line"> fQueues[i] = <span class='macro'>NULL<span class='expansion'>__null</span></span>;</td></tr>
316<tr><td class="num" id="LN231">231</td><td class="line"> }</td></tr>
317<tr><td class="num" id="LN232">232</td><td class="line">}</td></tr>
318<tr><td class="num" id="LN233">233</td><td class="line"> </td></tr>
319<tr><td class="num" id="LN234">234</td><td class="line"><span class='comment'>// _AllocBackBitmap</span></td></tr>
320<tr><td class="num" id="LN235">235</td><td class="line"><span class='keyword'>void</span></td></tr>
321<tr><td class="num" id="LN236">236</td><td class="line">SpiderSaver::_AllocBackBitmap(<span class='keyword'>float</span> width, <span class='keyword'>float</span> height)</td></tr>
322<tr><td class="num" id="LN237">237</td><td class="line">{</td></tr>
323<tr><td class="num" id="LN238">238</td><td class="line"> <span class='comment'>// sanity check</span></td></tr>
324<tr><td class="num" id="LN239">239</td><td class="line"> <span class='keyword'>if</span> (width &lt;= 0.0 || height &lt;= 0.0)</td></tr>
325<tr><td class="num" id="LN240">240</td><td class="line"> <span class='keyword'>return</span>;</td></tr>
326<tr><td class="num" id="LN241">241</td><td class="line"> </td></tr>
327<tr><td class="num" id="LN242">242</td><td class="line"> BRect b(0.0, 0.0, width, height);</td></tr>
328<tr><td class="num" id="LN243">243</td><td class="line"> fBackBitmap = <span class='keyword'>new</span> BBitmap(b, B_RGB32, <span class='keyword'>true</span>);</td></tr>
329<tr><td class="num" id="LN244">244</td><td class="line"> <span class='keyword'>if</span> (!fBackBitmap)</td></tr>
330<tr><td class="num" id="LN245">245</td><td class="line"> <span class='keyword'>return</span>;</td></tr>
331<tr><td class="num" id="LN246">246</td><td class="line"> <span class='keyword'>if</span> (fBackBitmap-&gt;IsValid()) {</td></tr>
332<tr><td class="num" id="LN247">247</td><td class="line"> fBackView = <span class='keyword'>new</span> BView(b, 0, <span class='macro'>B_FOLLOW_NONE<span class='expansion'>0</span></span>, B_WILL_DRAW);</td></tr>
333<tr><td class="num" id="LN248">248</td><td class="line"> fBackBitmap-&gt;AddChild(fBackView);</td></tr>
334<tr><td class="num" id="LN249">249</td><td class="line"> memset(fBackBitmap-&gt;Bits(), 0, fBackBitmap-&gt;BitsLength());</td></tr>
335<tr><td class="num" id="LN250">250</td><td class="line"> } <span class='keyword'>else</span> {</td></tr>
336<tr><td class="num" id="LN251">251</td><td class="line"> _FreeBackBitmap();</td></tr>
337<tr><td class="num" id="LN252">252</td><td class="line"> fprintf(stderr, <span class='string_literal'>"SpiderSaver::_AllocBackBitmap(): bitmap invalid\n"</span>);</td></tr>
338<tr><td class="num" id="LN253">253</td><td class="line"> }</td></tr>
339<tr><td class="num" id="LN254">254</td><td class="line">}</td></tr>
340<tr><td class="num" id="LN255">255</td><td class="line"> </td></tr>
341<tr><td class="num" id="LN256">256</td><td class="line"><span class='comment'>// _FreeBackBitmap</span></td></tr>
342<tr><td class="num" id="LN257">257</td><td class="line"><span class='keyword'>void</span></td></tr>
343<tr><td class="num" id="LN258">258</td><td class="line">SpiderSaver::_FreeBackBitmap()</td></tr>
344<tr><td class="num" id="LN259">259</td><td class="line">{</td></tr>
345<tr><td class="num" id="LN260">260</td><td class="line"> <span class='keyword'>if</span> (fBackBitmap) {</td></tr>
346<tr><td class="num" id="LN261">261</td><td class="line"> <span class='keyword'>delete</span> fBackBitmap;</td></tr>
347<tr><td class="num" id="LN262">262</td><td class="line"> fBackBitmap = <span class='macro'>NULL<span class='expansion'>__null</span></span>;</td></tr>
348<tr><td class="num" id="LN263">263</td><td class="line"> fBackView = <span class='macro'>NULL<span class='expansion'>__null</span></span>;</td></tr>
349<tr><td class="num" id="LN264">264</td><td class="line"> }</td></tr>
350<tr><td class="num" id="LN265">265</td><td class="line">}</td></tr>
351<tr><td class="num" id="LN266">266</td><td class="line"> </td></tr>
352<tr><td class="num" id="LN267">267</td><td class="line"><span class='comment'>// _DrawInto</span></td></tr>
353<tr><td class="num" id="LN268">268</td><td class="line"><span class='keyword'>void</span></td></tr>
354<tr><td class="num" id="LN269">269</td><td class="line">SpiderSaver::_DrawInto(BView *view)</td></tr>
355<tr><td class="num" id="LN270">270</td><td class="line">{</td></tr>
356<tr><td class="num" id="LN271">271</td><td class="line"> <span class='keyword'>for</span> (uint32 i = 0; i &lt; fQueueNumber; i++) {</td></tr>
357<tr><td class="num"></td><td class="line"><div id="Path7" class="msg msgControl" style="margin-left:9ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">7</div></td><td><div class="PathNav"><a href="#Path6" title="Previous event (6)">&#x2190;</a></div></td></td><td>Loop condition is true. Entering loop body</td><td><div class="PathNav"><a href="#Path8" title="Next event (8)">&#x2192;</a></div></td></tr></table></div></td></tr>
358<tr><td class="num" id="LN272">272</td><td class="line"> <span class='keyword'>switch</span> (fColor) {</td></tr>
359<tr><td class="num"></td><td class="line"><div id="Path8" class="msg msgControl" style="margin-left:17ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">8</div></td><td><div class="PathNav"><a href="#Path7" title="Previous event (7)">&#x2190;</a></div></td></td><td>Control jumps to the 'default' case at line 292</td><td><div class="PathNav"><a href="#Path9" title="Next event (9)">&#x2192;</a></div></td></tr></table></div></td></tr>
360<tr><td class="num" id="LN273">273</td><td class="line"> <span class='keyword'>case</span> GREEN:</td></tr>
361<tr><td class="num" id="LN274">274</td><td class="line"> view-&gt;SetHighColor(1, 2, 1, 255);</td></tr>
362<tr><td class="num" id="LN275">275</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
363<tr><td class="num" id="LN276">276</td><td class="line"> <span class='keyword'>case</span> BLUE:</td></tr>
364<tr><td class="num" id="LN277">277</td><td class="line"> view-&gt;SetHighColor(1, 1, 2, 255);</td></tr>
365<tr><td class="num" id="LN278">278</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
366<tr><td class="num" id="LN279">279</td><td class="line"> <span class='keyword'>case</span> YELLOW:</td></tr>
367<tr><td class="num" id="LN280">280</td><td class="line"> view-&gt;SetHighColor(2, 2, 1, 255);</td></tr>
368<tr><td class="num" id="LN281">281</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
369<tr><td class="num" id="LN282">282</td><td class="line"> <span class='keyword'>case</span> PURPLE:</td></tr>
370<tr><td class="num" id="LN283">283</td><td class="line"> view-&gt;SetHighColor(2, 1, 2, 255);</td></tr>
371<tr><td class="num" id="LN284">284</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
372<tr><td class="num" id="LN285">285</td><td class="line"> <span class='keyword'>case</span> CYAN:</td></tr>
373<tr><td class="num" id="LN286">286</td><td class="line"> view-&gt;SetHighColor(1, 2, 2, 255);</td></tr>
374<tr><td class="num" id="LN287">287</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
375<tr><td class="num" id="LN288">288</td><td class="line"> <span class='keyword'>case</span> GRAY:</td></tr>
376<tr><td class="num" id="LN289">289</td><td class="line"> view-&gt;SetHighColor(2, 2, 2, 255);</td></tr>
377<tr><td class="num" id="LN290">290</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
378<tr><td class="num" id="LN291">291</td><td class="line"> <span class='keyword'>case</span> RED:</td></tr>
379<tr><td class="num" id="LN292">292</td><td class="line"> <span class='keyword'>default</span>:</td></tr>
380<tr><td class="num" id="LN293">293</td><td class="line"> view-&gt;SetHighColor(2, 1, 1, 255);</td></tr>
381<tr><td class="num" id="LN294">294</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
382<tr><td class="num"></td><td class="line"><div id="Path9" class="msg msgControl" style="margin-left:33ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexControl">9</div></td><td><div class="PathNav"><a href="#Path8" title="Previous event (8)">&#x2190;</a></div></td></td><td> Execution continues on line 296</td><td><div class="PathNav"><a href="#EndPath" title="Next event (10)">&#x2192;</a></div></td></tr></table></div></td></tr>
383<tr><td class="num" id="LN295">295</td><td class="line"> }</td></tr>
384<tr><td class="num" id="LN296">296</td><td class="line"> <span class='keyword'>if</span> (Polygon* p = <span class="mrange">fQueues[i]</span>-&gt;Head()) {</td></tr>
385<tr><td class="num"></td><td class="line"><div id="EndPath" class="msg msgEvent" style="margin-left:34ex"><table class="msgT"><tr><td valign="top"><div class="PathIndex PathIndexEvent">10</div></td><td><div class="PathNav"><a href="#Path9" title="Previous event (9)">&#x2190;</a></div></td></td><td>Called C++ object pointer is null</td></tr></table></div></td></tr>
386<tr><td class="num" id="LN297">297</td><td class="line"> view-&gt;SetDrawingMode(B_OP_ADD);</td></tr>
387<tr><td class="num" id="LN298">298</td><td class="line"> _DrawPolygon(p, view);</td></tr>
388<tr><td class="num" id="LN299">299</td><td class="line"> }</td></tr>
389<tr><td class="num" id="LN300">300</td><td class="line"> <span class='keyword'>if</span> (Polygon* p = fQueues[i]-&gt;Tail()) {</td></tr>
390<tr><td class="num" id="LN301">301</td><td class="line"> view-&gt;SetDrawingMode(B_OP_SUBTRACT);</td></tr>
391<tr><td class="num" id="LN302">302</td><td class="line"> _DrawPolygon(p, view);</td></tr>
392<tr><td class="num" id="LN303">303</td><td class="line"> }</td></tr>
393<tr><td class="num" id="LN304">304</td><td class="line"> }</td></tr>
394<tr><td class="num" id="LN305">305</td><td class="line">}</td></tr>
395<tr><td class="num" id="LN306">306</td><td class="line"> </td></tr>
396<tr><td class="num" id="LN307">307</td><td class="line"><span class='comment'>// _DrawPolygon</span></td></tr>
397<tr><td class="num" id="LN308">308</td><td class="line"><span class='keyword'>void</span></td></tr>
398<tr><td class="num" id="LN309">309</td><td class="line">SpiderSaver::_DrawPolygon(Polygon* polygon, BView *view)</td></tr>
399<tr><td class="num" id="LN310">310</td><td class="line">{</td></tr>
400<tr><td class="num" id="LN311">311</td><td class="line"> int32 pointCount = polygon-&gt;CountPoints();</td></tr>
401<tr><td class="num" id="LN312">312</td><td class="line"> <span class='keyword'>if</span> (pointCount &gt; 1) {</td></tr>
402<tr><td class="num" id="LN313">313</td><td class="line"> BPoint p = polygon-&gt;PointAt(0);</td></tr>
403<tr><td class="num" id="LN314">314</td><td class="line"> view-&gt;MovePenTo(p);</td></tr>
404<tr><td class="num" id="LN315">315</td><td class="line"> <span class='keyword'>for</span> (int32 i = 1; i &lt; pointCount; i++)</td></tr>
405<tr><td class="num" id="LN316">316</td><td class="line"> view-&gt;StrokeLine(polygon-&gt;PointAt(i));</td></tr>
406<tr><td class="num" id="LN317">317</td><td class="line"> view-&gt;StrokeLine(p);</td></tr>
407<tr><td class="num" id="LN318">318</td><td class="line"> }</td></tr>
408<tr><td class="num" id="LN319">319</td><td class="line">}</td></tr>
409<tr><td class="num" id="LN320">320</td><td class="line"> </td></tr>
410<tr><td class="num" id="LN321">321</td><td class="line"><span class='comment'>// constructor</span></td></tr>
411<tr><td class="num" id="LN322">322</td><td class="line">SpiderView::SpiderView(BRect frame, SpiderSaver* saver,</td></tr>
412<tr><td class="num" id="LN323">323</td><td class="line"> uint32 queueNumber, uint32 maxPolyPoints,</td></tr>
413<tr><td class="num" id="LN324">324</td><td class="line"> uint32 maxQueueDepth, uint32 color)</td></tr>
414<tr><td class="num" id="LN325">325</td><td class="line"> : BView(frame, <span class='string_literal'>"spider view"</span>, <span class='macro'>B_FOLLOW_NONE<span class='expansion'>0</span></span>, B_WILL_DRAW | B_PULSE_NEEDED),</td></tr>
415<tr><td class="num" id="LN326">326</td><td class="line"> fSaver(saver)</td></tr>
416<tr><td class="num" id="LN327">327</td><td class="line">{</td></tr>
417<tr><td class="num" id="LN328">328</td><td class="line"> SetViewColor(ui_color(B_PANEL_BACKGROUND_COLOR));</td></tr>
418<tr><td class="num" id="LN329">329</td><td class="line"> </td></tr>
419<tr><td class="num" id="LN330">330</td><td class="line"> frame.OffsetTo(0.0, 0.0);</td></tr>
420<tr><td class="num" id="LN331">331</td><td class="line"> frame.InsetBy(10.0, 5.0);</td></tr>
421<tr><td class="num" id="LN332">332</td><td class="line"> </td></tr>
422<tr><td class="num" id="LN333">333</td><td class="line"> <span class='keyword'>float</span> viewHeight = floorf(frame.Height() / 5.0);</td></tr>
423<tr><td class="num" id="LN334">334</td><td class="line"> </td></tr>
424<tr><td class="num" id="LN335">335</td><td class="line"> <span class='comment'>// title stuff</span></td></tr>
425<tr><td class="num" id="LN336">336</td><td class="line"> font_height fh;</td></tr>
426<tr><td class="num" id="LN337">337</td><td class="line"> be_bold_font-&gt;GetHeight(&amp;fh);</td></tr>
427<tr><td class="num" id="LN338">338</td><td class="line"> <span class='keyword'>float</span> fontHeight = fh.ascent + fh.descent + 5.0;</td></tr>
428<tr><td class="num" id="LN339">339</td><td class="line"> frame.bottom = frame.top + fontHeight;</td></tr>
429<tr><td class="num" id="LN340">340</td><td class="line"> BStringView* title = <span class='keyword'>new</span> BStringView(frame, B_EMPTY_STRING,</td></tr>
430<tr><td class="num" id="LN341">341</td><td class="line"> <span class='macro'>B_TRANSLATE(<span class='string_literal'>"Spider by stippi"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Spider by stippi"<br>), "Screensaver Spider")</span></span>);</td></tr>
431<tr><td class="num" id="LN342">342</td><td class="line"> title-&gt;SetFont(be_bold_font);</td></tr>
432<tr><td class="num" id="LN343">343</td><td class="line"> AddChild(title);</td></tr>
433<tr><td class="num" id="LN344">344</td><td class="line"> </td></tr>
434<tr><td class="num" id="LN345">345</td><td class="line"> be_plain_font-&gt;GetHeight(&amp;fh);</td></tr>
435<tr><td class="num" id="LN346">346</td><td class="line"> fontHeight = fh.ascent + fh.descent + 5.0;</td></tr>
436<tr><td class="num" id="LN347">347</td><td class="line"> frame.top = frame.bottom;</td></tr>
437<tr><td class="num" id="LN348">348</td><td class="line"> frame.bottom = frame.top + fontHeight;</td></tr>
438<tr><td class="num" id="LN349">349</td><td class="line"> title = <span class='keyword'>new</span> BStringView(frame, B_EMPTY_STRING, <span class='macro'>B_TRANSLATE(<span class='string_literal'>"for bonefish"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("for bonefish"<br>), "Screensaver Spider")</span></span>);</td></tr>
439<tr><td class="num" id="LN350">350</td><td class="line"> BFont font(be_plain_font);</td></tr>
440<tr><td class="num" id="LN351">351</td><td class="line"> font.SetShear(110.0);</td></tr>
441<tr><td class="num" id="LN352">352</td><td class="line"> title-&gt;SetFont(&amp;font);</td></tr>
442<tr><td class="num" id="LN353">353</td><td class="line"> title-&gt;SetAlignment(B_ALIGN_CENTER);</td></tr>
443<tr><td class="num" id="LN354">354</td><td class="line"> AddChild(title);</td></tr>
444<tr><td class="num" id="LN355">355</td><td class="line"> </td></tr>
445<tr><td class="num" id="LN356">356</td><td class="line"> <span class='comment'>// controls</span></td></tr>
446<tr><td class="num" id="LN357">357</td><td class="line"> frame.top = 10.0;</td></tr>
447<tr><td class="num" id="LN358">358</td><td class="line"> frame.bottom = frame.top + viewHeight;</td></tr>
448<tr><td class="num" id="LN359">359</td><td class="line"> frame.OffsetBy(0.0, viewHeight);</td></tr>
449<tr><td class="num" id="LN360">360</td><td class="line"> fQueueNumberS = <span class='keyword'>new</span> BSlider(frame, <span class='string_literal'>"queue number"</span>,</td></tr>
450<tr><td class="num" id="LN361">361</td><td class="line"> <span class='macro'>B_TRANSLATE(<span class='string_literal'>"Max. polygon count"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Max. polygon count"<br>), "Screensaver Spider")</span></span>, <span class='keyword'>new</span> BMessage(MSG_QUEUE_NUMBER),</td></tr>
451<tr><td class="num" id="LN362">362</td><td class="line"> 1, <span class='macro'>MAX_QUEUE_NUMBER<span class='expansion'>40</span></span>);</td></tr>
452<tr><td class="num" id="LN363">363</td><td class="line"> fQueueNumberS-&gt;SetHashMarks(B_HASH_MARKS_BOTTOM);</td></tr>
453<tr><td class="num" id="LN364">364</td><td class="line"> fQueueNumberS-&gt;SetHashMarkCount((<span class='macro'>MAX_QUEUE_NUMBER<span class='expansion'>40</span></span> - 1) / 2 + 1);</td></tr>
454<tr><td class="num" id="LN365">365</td><td class="line"> fQueueNumberS-&gt;SetValue(queueNumber);</td></tr>
455<tr><td class="num" id="LN366">366</td><td class="line"> AddChild(fQueueNumberS);</td></tr>
456<tr><td class="num" id="LN367">367</td><td class="line"> frame.OffsetBy(0.0, viewHeight);</td></tr>
457<tr><td class="num" id="LN368">368</td><td class="line"> fPolyNumberS = <span class='keyword'>new</span> BSlider(frame, <span class='string_literal'>"poly points"</span>,</td></tr>
458<tr><td class="num" id="LN369">369</td><td class="line"> <span class='macro'>B_TRANSLATE(<span class='string_literal'>"Max. points per polygon"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Max. points per polygon"<br>), "Screensaver Spider")</span></span>, <span class='keyword'>new</span> BMessage(MSG_POLY_NUMBER),</td></tr>
459<tr><td class="num" id="LN370">370</td><td class="line"> <span class='macro'>MIN_POLY_POINTS<span class='expansion'>3</span></span>, <span class='macro'>MAX_POLY_POINTS<span class='expansion'>10</span></span>);</td></tr>
460<tr><td class="num" id="LN371">371</td><td class="line"> fPolyNumberS-&gt;SetHashMarks(B_HASH_MARKS_BOTTOM);</td></tr>
461<tr><td class="num" id="LN372">372</td><td class="line"> fPolyNumberS-&gt;SetHashMarkCount(<span class='macro'>MAX_POLY_POINTS<span class='expansion'>10</span></span> - <span class='macro'>MIN_POLY_POINTS<span class='expansion'>3</span></span> + 1);</td></tr>
462<tr><td class="num" id="LN373">373</td><td class="line"> fPolyNumberS-&gt;SetValue(maxPolyPoints);</td></tr>
463<tr><td class="num" id="LN374">374</td><td class="line"> AddChild(fPolyNumberS);</td></tr>
464<tr><td class="num" id="LN375">375</td><td class="line"> frame.OffsetBy(0.0, viewHeight);</td></tr>
465<tr><td class="num" id="LN376">376</td><td class="line"> fQueueDepthS = <span class='keyword'>new</span> BSlider(frame, <span class='string_literal'>"queue depth"</span>, <span class='macro'>B_TRANSLATE(<span class='string_literal'>"Trail depth"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Trail depth"<br>), "Screensaver Spider")</span></span>,</td></tr>
466<tr><td class="num" id="LN377">377</td><td class="line"> <span class='keyword'>new</span> BMessage(MSG_QUEUE_DEPTH), <span class='macro'>MIN_QUEUE_DEPTH<span class='expansion'>40</span></span>, <span class='macro'>MAX_QUEUE_DEPTH<span class='expansion'>160</span></span>);</td></tr>
467<tr><td class="num" id="LN378">378</td><td class="line"> fQueueDepthS-&gt;SetHashMarks(B_HASH_MARKS_BOTTOM);</td></tr>
468<tr><td class="num" id="LN379">379</td><td class="line"> fQueueDepthS-&gt;SetHashMarkCount((<span class='macro'>MAX_QUEUE_DEPTH<span class='expansion'>160</span></span> - <span class='macro'>MIN_QUEUE_DEPTH<span class='expansion'>40</span></span>) / 4 + 1);</td></tr>
469<tr><td class="num" id="LN380">380</td><td class="line"> fQueueDepthS-&gt;SetValue(maxQueueDepth);</td></tr>
470<tr><td class="num" id="LN381">381</td><td class="line"> AddChild(fQueueDepthS);</td></tr>
471<tr><td class="num" id="LN382">382</td><td class="line"> </td></tr>
472<tr><td class="num" id="LN383">383</td><td class="line"> BMenu* menu = <span class='keyword'>new</span> BMenu(<span class='macro'>B_TRANSLATE(<span class='string_literal'>"Color"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Color"<br>), "Screensaver Spider")</span></span>);</td></tr>
473<tr><td class="num" id="LN384">384</td><td class="line"> BMessage* message = <span class='keyword'>new</span> BMessage(MSG_COLOR);</td></tr>
474<tr><td class="num" id="LN385">385</td><td class="line"> message-&gt;AddInt32(<span class='string_literal'>"color"</span>, RED);</td></tr>
475<tr><td class="num" id="LN386">386</td><td class="line"> BMenuItem* item = <span class='keyword'>new</span> BMenuItem(<span class='macro'>B_TRANSLATE(<span class='string_literal'>"Red"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Red"<br>), "Screensaver Spider")</span></span>, message);</td></tr>
476<tr><td class="num" id="LN387">387</td><td class="line"> <span class='keyword'>if</span> (color == RED)</td></tr>
477<tr><td class="num" id="LN388">388</td><td class="line"> item-&gt;SetMarked(<span class='keyword'>true</span>);</td></tr>
478<tr><td class="num" id="LN389">389</td><td class="line"> menu-&gt;AddItem(item);</td></tr>
479<tr><td class="num" id="LN390">390</td><td class="line"> message = <span class='keyword'>new</span> BMessage(MSG_COLOR);</td></tr>
480<tr><td class="num" id="LN391">391</td><td class="line"> message-&gt;AddInt32(<span class='string_literal'>"color"</span>, GREEN);</td></tr>
481<tr><td class="num" id="LN392">392</td><td class="line"> item = <span class='keyword'>new</span> BMenuItem(<span class='macro'>B_TRANSLATE(<span class='string_literal'>"Green"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Green"<br>), "Screensaver Spider")</span></span>, message);</td></tr>
482<tr><td class="num" id="LN393">393</td><td class="line"> <span class='keyword'>if</span> (color == GREEN)</td></tr>
483<tr><td class="num" id="LN394">394</td><td class="line"> item-&gt;SetMarked(<span class='keyword'>true</span>);</td></tr>
484<tr><td class="num" id="LN395">395</td><td class="line"> menu-&gt;AddItem(item);</td></tr>
485<tr><td class="num" id="LN396">396</td><td class="line"> message = <span class='keyword'>new</span> BMessage(MSG_COLOR);</td></tr>
486<tr><td class="num" id="LN397">397</td><td class="line"> message-&gt;AddInt32(<span class='string_literal'>"color"</span>, BLUE);</td></tr>
487<tr><td class="num" id="LN398">398</td><td class="line"> item = <span class='keyword'>new</span> BMenuItem(<span class='macro'>B_TRANSLATE(<span class='string_literal'>"Blue"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Blue"<br>), "Screensaver Spider")</span></span>, message);</td></tr>
488<tr><td class="num" id="LN399">399</td><td class="line"> <span class='keyword'>if</span> (color == BLUE)</td></tr>
489<tr><td class="num" id="LN400">400</td><td class="line"> item-&gt;SetMarked(<span class='keyword'>true</span>);</td></tr>
490<tr><td class="num" id="LN401">401</td><td class="line"> menu-&gt;AddItem(item);</td></tr>
491<tr><td class="num" id="LN402">402</td><td class="line"> message = <span class='keyword'>new</span> BMessage(MSG_COLOR);</td></tr>
492<tr><td class="num" id="LN403">403</td><td class="line"> message-&gt;AddInt32(<span class='string_literal'>"color"</span>, YELLOW);</td></tr>
493<tr><td class="num" id="LN404">404</td><td class="line"> item = <span class='keyword'>new</span> BMenuItem(<span class='macro'>B_TRANSLATE(<span class='string_literal'>"Yellow"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Yellow"<br>), "Screensaver Spider")</span></span>, message);</td></tr>
494<tr><td class="num" id="LN405">405</td><td class="line"> <span class='keyword'>if</span> (color == YELLOW)</td></tr>
495<tr><td class="num" id="LN406">406</td><td class="line"> item-&gt;SetMarked(<span class='keyword'>true</span>);</td></tr>
496<tr><td class="num" id="LN407">407</td><td class="line"> menu-&gt;AddItem(item);</td></tr>
497<tr><td class="num" id="LN408">408</td><td class="line"> message = <span class='keyword'>new</span> BMessage(MSG_COLOR);</td></tr>
498<tr><td class="num" id="LN409">409</td><td class="line"> message-&gt;AddInt32(<span class='string_literal'>"color"</span>, PURPLE);</td></tr>
499<tr><td class="num" id="LN410">410</td><td class="line"> item = <span class='keyword'>new</span> BMenuItem(<span class='macro'>B_TRANSLATE(<span class='string_literal'>"Purple"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Purple"<br>), "Screensaver Spider")</span></span>, message);</td></tr>
500<tr><td class="num" id="LN411">411</td><td class="line"> <span class='keyword'>if</span> (color == PURPLE)</td></tr>
501<tr><td class="num" id="LN412">412</td><td class="line"> item-&gt;SetMarked(<span class='keyword'>true</span>);</td></tr>
502<tr><td class="num" id="LN413">413</td><td class="line"> menu-&gt;AddItem(item);</td></tr>
503<tr><td class="num" id="LN414">414</td><td class="line"> message = <span class='keyword'>new</span> BMessage(MSG_COLOR);</td></tr>
504<tr><td class="num" id="LN415">415</td><td class="line"> message-&gt;AddInt32(<span class='string_literal'>"color"</span>, CYAN);</td></tr>
505<tr><td class="num" id="LN416">416</td><td class="line"> item = <span class='keyword'>new</span> BMenuItem(<span class='macro'>B_TRANSLATE(<span class='string_literal'>"Cyan"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Cyan"<br>), "Screensaver Spider")</span></span>, message);</td></tr>
506<tr><td class="num" id="LN417">417</td><td class="line"> <span class='keyword'>if</span> (color == CYAN)</td></tr>
507<tr><td class="num" id="LN418">418</td><td class="line"> item-&gt;SetMarked(<span class='keyword'>true</span>);</td></tr>
508<tr><td class="num" id="LN419">419</td><td class="line"> menu-&gt;AddItem(item);</td></tr>
509<tr><td class="num" id="LN420">420</td><td class="line"> message = <span class='keyword'>new</span> BMessage(MSG_COLOR);</td></tr>
510<tr><td class="num" id="LN421">421</td><td class="line"> message-&gt;AddInt32(<span class='string_literal'>"color"</span>, GRAY);</td></tr>
511<tr><td class="num" id="LN422">422</td><td class="line"> item = <span class='keyword'>new</span> BMenuItem(<span class='macro'>B_TRANSLATE(<span class='string_literal'>"Gray"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Gray"<br>), "Screensaver Spider")</span></span>, message);</td></tr>
512<tr><td class="num" id="LN423">423</td><td class="line"> <span class='keyword'>if</span> (color == GRAY)</td></tr>
513<tr><td class="num" id="LN424">424</td><td class="line"> item-&gt;SetMarked(<span class='keyword'>true</span>);</td></tr>
514<tr><td class="num" id="LN425">425</td><td class="line"> menu-&gt;AddItem(item);</td></tr>
515<tr><td class="num" id="LN426">426</td><td class="line"> </td></tr>
516<tr><td class="num" id="LN427">427</td><td class="line"> menu-&gt;SetLabelFromMarked(<span class='keyword'>true</span>);</td></tr>
517<tr><td class="num" id="LN428">428</td><td class="line"> menu-&gt;SetRadioMode(<span class='keyword'>true</span>);</td></tr>
518<tr><td class="num" id="LN429">429</td><td class="line"> </td></tr>
519<tr><td class="num" id="LN430">430</td><td class="line"> frame.OffsetBy(0.0, viewHeight);</td></tr>
520<tr><td class="num" id="LN431">431</td><td class="line"> fColorMF = <span class='keyword'>new</span> BMenuField(frame, <span class='string_literal'>"color"</span>, <span class='macro'>B_TRANSLATE(<span class='string_literal'>"Color"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Color"<br>), "Screensaver Spider")</span></span>, menu);</td></tr>
521<tr><td class="num" id="LN432">432</td><td class="line"> fColorMF-&gt;SetDivider(fColorMF-&gt;StringWidth(<span class='macro'>B_TRANSLATE(<span class='string_literal'>"Color"</span>)<span class='expansion'>BLocaleRoster::Default()-&gt;GetCatalog()-&gt;GetString(("Color"<br>), "Screensaver Spider")</span></span>) + 5.0);</td></tr>
522<tr><td class="num" id="LN433">433</td><td class="line"> AddChild(fColorMF);</td></tr>
523<tr><td class="num" id="LN434">434</td><td class="line">}</td></tr>
524<tr><td class="num" id="LN435">435</td><td class="line"> </td></tr>
525<tr><td class="num" id="LN436">436</td><td class="line"><span class='comment'>// destructor</span></td></tr>
526<tr><td class="num" id="LN437">437</td><td class="line">SpiderView::~SpiderView()</td></tr>
527<tr><td class="num" id="LN438">438</td><td class="line">{</td></tr>
528<tr><td class="num" id="LN439">439</td><td class="line">}</td></tr>
529<tr><td class="num" id="LN440">440</td><td class="line"> </td></tr>
530<tr><td class="num" id="LN441">441</td><td class="line"><span class='comment'>// AttachedToWindow</span></td></tr>
531<tr><td class="num" id="LN442">442</td><td class="line"><span class='keyword'>void</span></td></tr>
532<tr><td class="num" id="LN443">443</td><td class="line">SpiderView::AttachedToWindow()</td></tr>
533<tr><td class="num" id="LN444">444</td><td class="line">{</td></tr>
534<tr><td class="num" id="LN445">445</td><td class="line"> fQueueNumberS-&gt;SetTarget(<span class='keyword'>this</span>);</td></tr>
535<tr><td class="num" id="LN446">446</td><td class="line"> fPolyNumberS-&gt;SetTarget(<span class='keyword'>this</span>);</td></tr>
536<tr><td class="num" id="LN447">447</td><td class="line"> fQueueDepthS-&gt;SetTarget(<span class='keyword'>this</span>);</td></tr>
537<tr><td class="num" id="LN448">448</td><td class="line"> fColorMF-&gt;Menu()-&gt;SetTargetForItems(<span class='keyword'>this</span>);</td></tr>
538<tr><td class="num" id="LN449">449</td><td class="line">}</td></tr>
539<tr><td class="num" id="LN450">450</td><td class="line"> </td></tr>
540<tr><td class="num" id="LN451">451</td><td class="line"><span class='comment'>// MessageReceived</span></td></tr>
541<tr><td class="num" id="LN452">452</td><td class="line"><span class='keyword'>void</span></td></tr>
542<tr><td class="num" id="LN453">453</td><td class="line">SpiderView::MessageReceived(BMessage* message)</td></tr>
543<tr><td class="num" id="LN454">454</td><td class="line">{</td></tr>
544<tr><td class="num" id="LN455">455</td><td class="line"> <span class='keyword'>switch</span> (message-&gt;what) {</td></tr>
545<tr><td class="num" id="LN456">456</td><td class="line"> <span class='keyword'>case</span> MSG_QUEUE_NUMBER:</td></tr>
546<tr><td class="num" id="LN457">457</td><td class="line"> fSaver-&gt;SetQueueNumber(fQueueNumberS-&gt;Value());</td></tr>
547<tr><td class="num" id="LN458">458</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
548<tr><td class="num" id="LN459">459</td><td class="line"> <span class='keyword'>case</span> MSG_POLY_NUMBER:</td></tr>
549<tr><td class="num" id="LN460">460</td><td class="line"> fSaver-&gt;SetPolyPoints(fPolyNumberS-&gt;Value());</td></tr>
550<tr><td class="num" id="LN461">461</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
551<tr><td class="num" id="LN462">462</td><td class="line"> <span class='keyword'>case</span> MSG_QUEUE_DEPTH:</td></tr>
552<tr><td class="num" id="LN463">463</td><td class="line"> fSaver-&gt;SetQueueDepth(fQueueDepthS-&gt;Value());</td></tr>
553<tr><td class="num" id="LN464">464</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
554<tr><td class="num" id="LN465">465</td><td class="line"> <span class='keyword'>case</span> MSG_COLOR: {</td></tr>
555<tr><td class="num" id="LN466">466</td><td class="line"> uint32 color;</td></tr>
556<tr><td class="num" id="LN467">467</td><td class="line"> <span class='keyword'>if</span> (message-&gt;FindInt32(<span class='string_literal'>"color"</span>, (int32*)&amp;color) == <span class='macro'>B_OK<span class='expansion'>((int)0)</span></span>)</td></tr>
557<tr><td class="num" id="LN468">468</td><td class="line"> fSaver-&gt;SetColor(color);</td></tr>
558<tr><td class="num" id="LN469">469</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
559<tr><td class="num" id="LN470">470</td><td class="line"> }</td></tr>
560<tr><td class="num" id="LN471">471</td><td class="line"> <span class='keyword'>default</span>:</td></tr>
561<tr><td class="num" id="LN472">472</td><td class="line"> BView::MessageReceived(message);</td></tr>
562<tr><td class="num" id="LN473">473</td><td class="line"> <span class='keyword'>break</span>;</td></tr>
563<tr><td class="num" id="LN474">474</td><td class="line"> }</td></tr>
564<tr><td class="num" id="LN475">475</td><td class="line">}</td></tr>
565<tr><td class="num" id="LN476">476</td><td class="line"> </td></tr>
566</table></body></html>