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| <div class="section"> |
| <div class="titlepage"><div><div><h3 class="title"> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model"></a><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html" title="Example source code: Adapting a legacy geometry object model">Example |
| source code: Adapting a legacy geometry object model</a> |
| </h3></div></div></div> |
| <h3> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.h0"></a> |
| <span class="phrase"><a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.adaption_of_qpoint"></a></span><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html#geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.adaption_of_qpoint">Adaption |
| of QPoint</a> |
| </h3> |
| <a name="adaption_of_qpoint_source_code"></a><pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| |
| <span class="keyword">namespace</span> <span class="identifier">boost</span> |
| <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">geometry</span> |
| <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">traits</span> |
| <span class="special">{</span> |
| <span class="comment">// Adapt QPoint to Boost.Geometry</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">tag</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">></span> |
| <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">point_tag</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">coordinate_type</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">></span> |
| <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">QPoint</span><span class="special">::</span><span class="keyword">double</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">coordinate_system</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">></span> |
| <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">cs</span><span class="special">::</span><span class="identifier">cartesian</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">dimension</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">></span> <span class="special">:</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">mpl</span><span class="special">::</span><span class="identifier">int_</span><span class="special"><</span><span class="number">2</span><span class="special">></span> <span class="special">{};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">access</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">,</span> <span class="number">0</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">QPoint</span><span class="special">::</span><span class="keyword">double</span> <span class="identifier">get</span><span class="special">(</span><span class="identifier">QPoint</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">p</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="keyword">return</span> <span class="identifier">p</span><span class="special">.</span><span class="identifier">x</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">static</span> <span class="keyword">void</span> <span class="identifier">set</span><span class="special">(</span><span class="identifier">QPoint</span><span class="special">&</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">QPoint</span><span class="special">::</span><span class="keyword">double</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">value</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">p</span><span class="special">.</span><span class="identifier">x</span> <span class="special">=</span> <span class="identifier">value</span><span class="special">;</span> |
| <span class="special">}</span> |
| <span class="special">};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">access</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">,</span> <span class="number">1</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">QPoint</span><span class="special">::</span><span class="keyword">double</span> <span class="identifier">get</span><span class="special">(</span><span class="identifier">QPoint</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">p</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="keyword">return</span> <span class="identifier">p</span><span class="special">.</span><span class="identifier">y</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">static</span> <span class="keyword">void</span> <span class="identifier">set</span><span class="special">(</span><span class="identifier">QPoint</span><span class="special">&</span> <span class="identifier">p</span><span class="special">,</span> <span class="identifier">QPoint</span><span class="special">::</span><span class="keyword">double</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">value</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">p</span><span class="special">.</span><span class="identifier">y</span> <span class="special">=</span> <span class="identifier">value</span><span class="special">;</span> |
| <span class="special">}</span> |
| <span class="special">};</span> |
| <span class="special">}</span> |
| <span class="special">}</span> |
| <span class="special">}</span> <span class="comment">// namespace boost::geometry::traits</span> |
| </pre> |
| <h3> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.h1"></a> |
| <span class="phrase"><a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.adaption_of_qlinestring"></a></span><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html#geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.adaption_of_qlinestring">Adaption |
| of QLineString</a> |
| </h3> |
| <a name="adaption_of_qlinestring_source_code"></a><pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> |
| <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">geometry</span> |
| <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">traits</span> |
| <span class="special">{</span> |
| <span class="keyword">template</span><span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">tag</span><span class="special"><</span><span class="identifier">QLineString</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">typedef</span> <span class="identifier">linestring_tag</span> <span class="identifier">type</span><span class="special">;</span> |
| <span class="special">};</span> |
| <span class="special">}</span> |
| <span class="special">}</span> |
| <span class="special">}</span> <span class="comment">// namespace boost::geometry::traits</span> |
| </pre> |
| <h4> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.h2"></a> |
| <span class="phrase"><a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_range_for_qlinestring"></a></span><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html#geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_range_for_qlinestring">Boost.Range |
| for QLineString</a> |
| </h4> |
| <a name="adaption_of_qlinestring_range_source_code"></a><pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">range</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| |
| <span class="keyword">namespace</span> <span class="identifier">boost</span> |
| <span class="special">{</span> |
| <span class="keyword">template</span> <span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">range_iterator</span><span class="special"><</span><span class="identifier">QLineString</span><span class="special">></span> |
| <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">*>::</span><span class="identifier">iterator</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">range_const_iterator</span><span class="special"><</span><span class="identifier">QLineString</span><span class="special">></span> |
| <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">*>::</span><span class="identifier">const_iterator</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">*>::</span><span class="identifier">iterator</span> |
| <span class="identifier">range_begin</span><span class="special">(</span><span class="identifier">QLineString</span><span class="special">&</span> <span class="identifier">qls</span><span class="special">)</span> <span class="special">{</span><span class="keyword">return</span> <span class="identifier">qls</span><span class="special">.</span><span class="identifier">points</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">*>::</span><span class="identifier">iterator</span> |
| <span class="identifier">range_end</span><span class="special">(</span><span class="identifier">QLineString</span><span class="special">&</span> <span class="identifier">qls</span><span class="special">)</span> <span class="special">{</span><span class="keyword">return</span> <span class="identifier">qls</span><span class="special">.</span><span class="identifier">points</span><span class="special">.</span><span class="identifier">end</span><span class="special">();}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">*>::</span><span class="identifier">const_iterator</span> |
| <span class="identifier">range_begin</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">QLineString</span><span class="special">&</span> <span class="identifier">qls</span><span class="special">)</span> <span class="special">{</span><span class="keyword">return</span> <span class="identifier">qls</span><span class="special">.</span><span class="identifier">points</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QPoint</span><span class="special">*>::</span><span class="identifier">const_iterator</span> |
| <span class="identifier">range_end</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">QLineString</span><span class="special">&</span> <span class="identifier">qls</span><span class="special">)</span> <span class="special">{</span><span class="keyword">return</span> <span class="identifier">qls</span><span class="special">.</span><span class="identifier">points</span><span class="special">.</span><span class="identifier">end</span><span class="special">();}</span> |
| </pre> |
| <h3> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.h3"></a> |
| <span class="phrase"><a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.adaption_of_qring"></a></span><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html#geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.adaption_of_qring">Adaption |
| of QRing</a> |
| </h3> |
| <a name="adaption_of_qring_source_code"></a><pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> |
| <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">geometry</span> |
| <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">traits</span> |
| <span class="special">{</span> |
| <span class="keyword">template</span><span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">tag</span><span class="special"><</span><span class="identifier">QRing</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">typedef</span> <span class="identifier">ring_tag</span> <span class="identifier">type</span><span class="special">;</span> |
| <span class="special">};</span> |
| <span class="special">}</span> |
| <span class="special">}</span> |
| <span class="special">}</span> <span class="comment">// namespace boost::geometry::traits</span> |
| </pre> |
| <h4> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.h4"></a> |
| <span class="phrase"><a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_iterator_for_qring"></a></span><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html#geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_iterator_for_qring">Boost.Iterator |
| for QRing</a> |
| </h4> |
| <a name="adaption_of_qring_iterator_source_code"></a><pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">iterator</span><span class="special">/</span><span class="identifier">iterator_facade</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| |
| <span class="comment">/* Custom iterator type that flattens a 2D array into a 1D array */</span> |
| <span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">I</span><span class="special">,</span> <span class="comment">// Line iterator type</span> |
| <span class="keyword">class</span> <span class="identifier">R</span> <span class="comment">// Point reference type</span> |
| <span class="special">></span> |
| <span class="keyword">class</span> <span class="identifier">RingIteratorImpl</span> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">iterator_facade</span><span class="special"><</span> |
| <span class="identifier">RingIteratorImpl</span><span class="special"><</span><span class="identifier">I</span><span class="special">,</span><span class="identifier">R</span><span class="special">>,</span> <span class="identifier">R</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">random_access_iterator_tag</span><span class="special">,</span> <span class="identifier">R</span><span class="special">></span> <span class="comment">//new traversal tag boost::random_access_traversal_tag</span> |
| <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="identifier">RingIteratorImpl</span><span class="special">()</span> <span class="special">:</span> <span class="identifier">pointIndex_</span><span class="special">(</span><span class="number">0</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">explicit</span> <span class="identifier">RingIteratorImpl</span><span class="special">(</span><span class="identifier">I</span> <span class="identifier">lineStringIterCurrent</span><span class="special">)</span> |
| <span class="special">:</span> <span class="identifier">lineStringIterCurrent_</span><span class="special">(</span><span class="identifier">lineStringIterCurrent</span><span class="special">),</span> <span class="identifier">pointIndex_</span><span class="special">(</span><span class="number">0</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">OtherI</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">OtherR</span><span class="special">></span> |
| <span class="identifier">RingIteratorImpl</span><span class="special">(</span><span class="identifier">RingIteratorImpl</span><span class="special"><</span><span class="identifier">OtherI</span><span class="special">,</span> <span class="identifier">OtherR</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="special">:</span> |
| <span class="identifier">lineStringIterCurrent_</span><span class="special">(</span><span class="identifier">other</span><span class="special">.</span><span class="identifier">getLineStrIt</span><span class="special">()),</span> <span class="identifier">pointIndex_</span><span class="special">(</span><span class="identifier">other</span><span class="special">.</span><span class="identifier">getPointIdx</span><span class="special">())</span> |
| <span class="special">{</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">I</span> <span class="identifier">getLineStrIt</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">{</span><span class="keyword">return</span> <span class="identifier">lineStringIterCurrent_</span><span class="special">;}</span> |
| |
| <span class="keyword">bool</span> <span class="identifier">isEmpty</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">{</span><span class="keyword">return</span> <span class="identifier">isEmpty</span><span class="special">;}</span> |
| <span class="identifier">size_t</span> <span class="identifier">getPointIdx</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">{</span><span class="keyword">return</span> <span class="identifier">pointIndex_</span><span class="special">;}</span> |
| |
| <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">iterator_facade</span><span class="special"><</span><span class="identifier">RingIteratorImpl</span><span class="special"><</span><span class="identifier">I</span><span class="special">,</span><span class="identifier">R</span><span class="special">>,</span> <span class="identifier">R</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">random_access_iterator_tag</span><span class="special">,</span> <span class="identifier">R</span><span class="special">>::</span><span class="identifier">difference_type</span> <span class="identifier">difference_type</span><span class="special">;</span> |
| |
| <span class="keyword">private</span><span class="special">:</span> |
| <span class="keyword">friend</span> <span class="keyword">class</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">iterator_core_access</span><span class="special">;</span> |
| |
| <span class="keyword">void</span> <span class="identifier">increment</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="special">++</span><span class="identifier">pointIndex_</span><span class="special">;</span> |
| <span class="keyword">if</span> <span class="special">(</span><span class="identifier">pointIndex_</span> <span class="special">>=</span> <span class="special">(*</span><span class="identifier">lineStringIterCurrent_</span><span class="special">)-></span><span class="identifier">points</span><span class="special">.</span><span class="identifier">size</span><span class="special">())</span> |
| <span class="special">{</span> |
| <span class="special">++</span><span class="identifier">lineStringIterCurrent_</span><span class="special">;</span> |
| <span class="identifier">pointIndex_</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> |
| <span class="special">}</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">void</span> <span class="identifier">decrement</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="keyword">if</span><span class="special">(</span><span class="identifier">pointIndex_</span><span class="special">></span><span class="number">0</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="special">--</span><span class="identifier">pointIndex_</span><span class="special">;</span> |
| <span class="special">}</span> |
| <span class="keyword">else</span> |
| <span class="special">{</span> |
| <span class="special">--</span><span class="identifier">lineStringIterCurrent_</span><span class="special">;</span> |
| <span class="identifier">pointIndex_</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">lineStringIterCurrent_</span><span class="special">)-></span><span class="identifier">points</span><span class="special">.</span><span class="identifier">size</span><span class="special">();</span> |
| <span class="special">}</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">void</span> <span class="identifier">advance</span><span class="special">(</span><span class="identifier">difference_type</span> <span class="identifier">n</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">difference_type</span> <span class="identifier">counter</span> <span class="special">=</span> <span class="identifier">n</span><span class="special">;</span> |
| |
| <span class="identifier">difference_type</span> <span class="identifier">maxPointIndex</span><span class="special">,</span> <span class="identifier">remainderPointIndex</span><span class="special">;</span> |
| |
| <span class="keyword">while</span><span class="special">(</span><span class="identifier">counter</span><span class="special">></span><span class="number">0</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">maxPointIndex</span> <span class="special">=</span> <span class="special">(*</span><span class="identifier">lineStringIterCurrent_</span><span class="special">)-></span><span class="identifier">points</span><span class="special">.</span><span class="identifier">size</span><span class="special">(),</span> |
| <span class="identifier">remainderPointIndex</span> <span class="special">=</span> <span class="identifier">maxPointIndex</span> <span class="special">-</span> <span class="identifier">pointIndex_</span><span class="special">;</span> |
| |
| <span class="keyword">if</span><span class="special">(</span><span class="identifier">counter</span><span class="special">></span><span class="identifier">remainderPointIndex</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">counter</span> <span class="special">-=</span> <span class="identifier">remainderPointIndex</span><span class="special">;</span> |
| <span class="special">++</span><span class="identifier">lineStringIterCurrent_</span><span class="special">;</span> |
| <span class="special">}</span> |
| <span class="keyword">else</span> <span class="comment">// (counter<=remainderPointIndex)</span> |
| <span class="special">{</span> |
| <span class="identifier">counter</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> |
| <span class="identifier">pointIndex_</span> <span class="special">=</span> <span class="identifier">remainderPointIndex</span><span class="special">;</span> |
| <span class="special">}</span> |
| <span class="special">}</span> |
| |
| <span class="special">}</span> |
| |
| <span class="identifier">difference_type</span> <span class="identifier">distance_to</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">RingIteratorImpl</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> |
| <span class="special">{</span> |
| <span class="identifier">I</span> <span class="identifier">currentLineStringIter</span> <span class="special">=</span> <span class="identifier">getLineStrIt</span><span class="special">();</span> |
| <span class="identifier">I</span> <span class="identifier">otherLineStringIter</span> <span class="special">=</span> <span class="identifier">other</span><span class="special">.</span><span class="identifier">getLineStrIt</span><span class="special">();</span> |
| |
| <span class="identifier">difference_type</span> <span class="identifier">count</span> <span class="special">=</span> <span class="number">0</span><span class="special">;</span> |
| <span class="identifier">difference_type</span> <span class="identifier">distance_to_other</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">distance</span><span class="special">(</span><span class="identifier">currentLineStringIter</span><span class="special">,</span> <span class="identifier">otherLineStringIter</span><span class="special">);</span> |
| |
| <span class="keyword">if</span><span class="special">(</span><span class="identifier">distance_to_other</span> <span class="special"><</span> <span class="number">0</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">count</span> <span class="special">+=</span> <span class="identifier">pointIndex_</span><span class="special">;</span> |
| |
| <span class="keyword">while</span><span class="special">(</span><span class="identifier">distance_to_other</span> <span class="special"><</span> <span class="number">0</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">QLineString</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">ls</span> <span class="special">=</span> <span class="special">*</span><span class="identifier">otherLineStringIter</span><span class="special">;</span> |
| <span class="identifier">count</span> <span class="special">-=</span> <span class="identifier">ls</span><span class="special">-></span><span class="identifier">points</span><span class="special">.</span><span class="identifier">size</span><span class="special">();</span> |
| |
| <span class="special">++</span><span class="identifier">otherLineStringIter</span><span class="special">;</span> |
| <span class="special">++</span><span class="identifier">distance_to_other</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">assert</span><span class="special">(</span><span class="identifier">otherLineStringIter</span><span class="special">==</span><span class="identifier">currentLineStringIter</span><span class="special">);</span> |
| <span class="special">}</span> |
| <span class="keyword">else</span> <span class="keyword">if</span><span class="special">(</span><span class="identifier">distance_to_other</span> <span class="special">></span> <span class="number">0</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">count</span> <span class="special">-=</span> <span class="identifier">pointIndex_</span><span class="special">;</span> |
| |
| <span class="keyword">while</span><span class="special">(</span><span class="identifier">distance_to_other</span> <span class="special"><</span> <span class="number">0</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">QLineString</span> <span class="keyword">const</span><span class="special">*</span> <span class="identifier">ls</span> <span class="special">=</span> <span class="special">*</span><span class="identifier">currentLineStringIter</span><span class="special">;</span> |
| <span class="identifier">count</span> <span class="special">+=</span> <span class="identifier">ls</span><span class="special">-></span><span class="identifier">points</span><span class="special">.</span><span class="identifier">size</span><span class="special">();</span> |
| |
| <span class="special">++</span><span class="identifier">currentLineStringIter</span><span class="special">;</span> |
| <span class="special">--</span><span class="identifier">distance_to_other</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">assert</span><span class="special">(</span><span class="identifier">otherLineStringIter</span><span class="special">==</span><span class="identifier">currentLineStringIter</span><span class="special">);</span> |
| <span class="special">}</span> |
| <span class="keyword">else</span> |
| <span class="special">{</span> |
| <span class="identifier">count</span> <span class="special">=</span> <span class="identifier">pointIndex_</span> <span class="special">-</span> <span class="identifier">other</span><span class="special">.</span><span class="identifier">getPointIdx</span><span class="special">();</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">return</span> <span class="identifier">count</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">bool</span> <span class="identifier">equal</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">RingIteratorImpl</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> |
| <span class="special">{</span> |
| <span class="keyword">return</span> <span class="special">(</span><span class="identifier">lineStringIterCurrent_</span> <span class="special">==</span> <span class="identifier">other</span><span class="special">.</span><span class="identifier">getLineStrIt</span><span class="special">())</span> <span class="special">&&</span> |
| <span class="special">(</span><span class="identifier">pointIndex_</span> <span class="special">==</span> <span class="identifier">other</span><span class="special">.</span><span class="identifier">getPointIdx</span><span class="special">());</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">R</span> <span class="identifier">dereference</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">{</span><span class="keyword">return</span> <span class="special">*(*</span><span class="identifier">lineStringIterCurrent_</span><span class="special">)-></span><span class="identifier">points</span><span class="special">[</span><span class="identifier">pointIndex_</span><span class="special">];}</span> |
| |
| |
| <span class="identifier">I</span> <span class="identifier">lineStringIterCurrent_</span><span class="special">;</span> |
| |
| <span class="keyword">bool</span> <span class="identifier">empty</span><span class="special">;</span> |
| <span class="identifier">size_t</span> <span class="identifier">pointIndex_</span><span class="special">;</span> |
| <span class="special">};</span> |
| </pre> |
| <h4> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.h5"></a> |
| <span class="phrase"><a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_range_for_qring"></a></span><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html#geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_range_for_qring">Boost.Range |
| for QRing</a> |
| </h4> |
| <a name="adaption_of_qring_range_source_code"></a><pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">RingIteratorImpl</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QLineString</span><span class="special">*>::</span><span class="identifier">iterator</span><span class="special">,</span> <span class="identifier">QPoint</span><span class="special">></span> <span class="identifier">RingIterator</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">RingIteratorImpl</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QLineString</span><span class="special">*>::</span><span class="identifier">const_iterator</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">QPoint</span><span class="special">></span> <span class="identifier">ConstRingIterator</span><span class="special">;</span> |
| |
| <span class="keyword">namespace</span> <span class="identifier">boost</span> |
| <span class="special">{</span> |
| <span class="comment">// Specialize metafunctions. We must include the range.hpp header.</span> |
| <span class="comment">// We must open the 'boost' namespace.</span> |
| |
| <span class="keyword">template</span> <span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">range_iterator</span><span class="special"><</span><span class="identifier">QRing</span><span class="special">></span> |
| <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">RingIterator</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">range_const_iterator</span><span class="special"><</span><span class="identifier">QRing</span><span class="special">></span> |
| <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">ConstRingIterator</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| |
| <span class="special">}</span> <span class="comment">// namespace 'boost'</span> |
| |
| |
| <span class="comment">// The required Range functions. These should be defined in the same namespace</span> |
| <span class="comment">// as Ring.</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">RingIterator</span> <span class="identifier">range_begin</span><span class="special">(</span><span class="identifier">QRing</span><span class="special">&</span> <span class="identifier">r</span><span class="special">)</span> |
| <span class="special">{</span><span class="keyword">return</span> <span class="identifier">RingIterator</span><span class="special">(</span><span class="identifier">r</span><span class="special">.</span><span class="identifier">lines</span><span class="special">.</span><span class="identifier">begin</span><span class="special">());}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">ConstRingIterator</span> <span class="identifier">range_begin</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">QRing</span><span class="special">&</span> <span class="identifier">r</span><span class="special">)</span> |
| <span class="special">{</span><span class="keyword">return</span> <span class="identifier">ConstRingIterator</span><span class="special">(</span><span class="identifier">r</span><span class="special">.</span><span class="identifier">lines</span><span class="special">.</span><span class="identifier">begin</span><span class="special">());}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">RingIterator</span> <span class="identifier">range_end</span><span class="special">(</span><span class="identifier">QRing</span><span class="special">&</span> <span class="identifier">r</span><span class="special">)</span> |
| <span class="special">{</span><span class="keyword">return</span> <span class="identifier">RingIterator</span><span class="special">(</span><span class="identifier">r</span><span class="special">.</span><span class="identifier">lines</span><span class="special">.</span><span class="identifier">end</span><span class="special">());}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">ConstRingIterator</span> <span class="identifier">range_end</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">QRing</span><span class="special">&</span> <span class="identifier">r</span><span class="special">)</span> |
| <span class="special">{</span><span class="keyword">return</span> <span class="identifier">ConstRingIterator</span><span class="special">(</span><span class="identifier">r</span><span class="special">.</span><span class="identifier">lines</span><span class="special">.</span><span class="identifier">end</span><span class="special">());}</span> |
| </pre> |
| <h3> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.h6"></a> |
| <span class="phrase"><a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.adaption_of_qpolygon"></a></span><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html#geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.adaption_of_qpolygon">Adaption |
| of QPolygon</a> |
| </h3> |
| <a name="adaption_of_qpolygon_source_code"></a><pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">boost</span> <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">geometry</span> <span class="special">{</span> |
| <span class="keyword">namespace</span> <span class="identifier">traits</span> <span class="special">{</span> |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">tag</span><span class="special"><</span><span class="identifier">QPolygon</span><span class="special">></span> <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">polygon_tag</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">ring_const_type</span><span class="special"><</span><span class="identifier">QPolygon</span><span class="special">></span> <span class="special">{</span> <span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">QRing</span><span class="special">&</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">ring_mutable_type</span><span class="special"><</span><span class="identifier">QPolygon</span><span class="special">></span> <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">QRing</span><span class="special">&</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">interior_const_type</span><span class="special"><</span><span class="identifier">QPolygon</span><span class="special">></span> <span class="special">{</span> <span class="keyword">typedef</span> <span class="keyword">const</span> <span class="identifier">CustomPolygonRingRange</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">interior_mutable_type</span><span class="special"><</span><span class="identifier">QPolygon</span><span class="special">></span> <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">CustomPolygonRingRange</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">exterior_ring</span><span class="special"><</span><span class="identifier">QPolygon</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">QRing</span><span class="special">&</span> <span class="identifier">get</span><span class="special">(</span><span class="identifier">QPolygon</span><span class="special">&</span> <span class="identifier">p</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="keyword">return</span> <span class="special">(*</span><span class="identifier">p</span><span class="special">.</span><span class="identifier">exterior</span><span class="special">);</span> |
| <span class="special">}</span> |
| <span class="keyword">static</span> <span class="identifier">QRing</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">get</span><span class="special">(</span><span class="identifier">QPolygon</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">p</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="keyword">return</span> <span class="special">(*</span><span class="identifier">p</span><span class="special">.</span><span class="identifier">exterior</span><span class="special">);</span> |
| <span class="special">}</span> |
| <span class="special">};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> <span class="keyword">struct</span> <span class="identifier">interior_rings</span><span class="special"><</span><span class="identifier">QPolygon</span><span class="special">></span> |
| <span class="special">{</span> |
| <span class="keyword">static</span> <span class="identifier">CustomPolygonRingRange</span> <span class="identifier">get</span><span class="special">(</span><span class="identifier">QPolygon</span><span class="special">&</span> <span class="identifier">p</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="keyword">return</span> <span class="identifier">CustomPolygonRingRange</span><span class="special">(</span><span class="identifier">PolygonRingIterator</span><span class="special">(</span><span class="identifier">p</span><span class="special">.</span><span class="identifier">interiors</span><span class="special">.</span><span class="identifier">begin</span><span class="special">()),</span> <span class="identifier">PolygonRingIterator</span><span class="special">(</span><span class="identifier">p</span><span class="special">.</span><span class="identifier">interiors</span><span class="special">.</span><span class="identifier">end</span><span class="special">()));</span> |
| <span class="special">}</span> |
| <span class="keyword">static</span> <span class="keyword">const</span> <span class="identifier">CustomPolygonRingRange</span> <span class="identifier">get</span><span class="special">(</span><span class="identifier">QPolygon</span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">p</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="keyword">return</span> <span class="identifier">CustomPolygonRingRange</span><span class="special">(</span><span class="identifier">ConstPolygonRingIterator</span><span class="special">(</span><span class="identifier">p</span><span class="special">.</span><span class="identifier">interiors</span><span class="special">.</span><span class="identifier">begin</span><span class="special">()),</span> <span class="identifier">ConstPolygonRingIterator</span><span class="special">(</span><span class="identifier">p</span><span class="special">.</span><span class="identifier">interiors</span><span class="special">.</span><span class="identifier">end</span><span class="special">()));</span> |
| <span class="special">}</span> |
| <span class="special">};</span> |
| <span class="special">}</span> |
| <span class="special">}</span> |
| <span class="special">}</span> <span class="comment">// namespace boost::geometry::traits</span> |
| </pre> |
| <h4> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.h7"></a> |
| <span class="phrase"><a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_iterator_for_qrings_in_qpolygon"></a></span><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html#geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_iterator_for_qrings_in_qpolygon">Boost.Iterator |
| for QRings in QPolygon</a> |
| </h4> |
| <a name="adaption_of_qpolygon_iterator_source_code"></a><pre class="programlisting"><span class="keyword">template</span> <span class="special"><</span><span class="keyword">class</span> <span class="identifier">I</span><span class="special">,</span> <span class="comment">// Line iterator type</span> |
| <span class="keyword">class</span> <span class="identifier">R</span> <span class="comment">// Point reference type</span> |
| <span class="special">></span> |
| <span class="keyword">class</span> <span class="identifier">PolyRingIterator</span> <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">iterator_facade</span><span class="special"><</span> |
| <span class="identifier">PolyRingIterator</span><span class="special"><</span><span class="identifier">I</span><span class="special">,</span><span class="identifier">R</span><span class="special">>,</span> <span class="identifier">R</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">random_access_iterator_tag</span><span class="special">,</span> <span class="identifier">R</span><span class="special">></span> <span class="comment">//new traversal tag</span> |
| <span class="special">{</span> |
| <span class="keyword">public</span><span class="special">:</span> |
| <span class="identifier">PolyRingIterator</span><span class="special">()</span> <span class="special">{}</span> |
| |
| <span class="keyword">explicit</span> <span class="identifier">PolyRingIterator</span><span class="special">(</span><span class="identifier">I</span> <span class="identifier">ringIter</span><span class="special">)</span> <span class="special">:</span> <span class="identifier">_ringIter</span><span class="special">(</span><span class="identifier">ringIter</span><span class="special">)</span> <span class="special">{}</span> |
| |
| <span class="keyword">template</span><span class="special"><</span><span class="keyword">class</span> <span class="identifier">OtherI</span><span class="special">,</span> <span class="keyword">class</span> <span class="identifier">OtherR</span><span class="special">></span> |
| <span class="identifier">PolyRingIterator</span><span class="special">(</span><span class="identifier">PolyRingIterator</span><span class="special"><</span><span class="identifier">OtherI</span><span class="special">,</span> <span class="identifier">OtherR</span><span class="special">></span> <span class="keyword">const</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="special">:</span> |
| <span class="identifier">_ringIter</span><span class="special">(</span><span class="identifier">other</span><span class="special">.</span><span class="identifier">getRingIter</span><span class="special">())</span> <span class="special">{}</span> |
| |
| <span class="identifier">I</span> <span class="identifier">getRingIter</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">{</span><span class="keyword">return</span> <span class="identifier">_ringIter</span><span class="special">;}</span> |
| |
| <span class="keyword">typedef</span> <span class="keyword">typename</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">iterator_facade</span><span class="special"><</span><span class="identifier">PolyRingIterator</span><span class="special"><</span><span class="identifier">I</span><span class="special">,</span><span class="identifier">R</span><span class="special">>,</span> <span class="identifier">R</span><span class="special">,</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">random_access_iterator_tag</span><span class="special">,</span> <span class="identifier">R</span><span class="special">>::</span><span class="identifier">difference_type</span> <span class="identifier">difference_type</span><span class="special">;</span> |
| |
| <span class="keyword">private</span><span class="special">:</span> |
| <span class="keyword">friend</span> <span class="keyword">class</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">iterator_core_access</span><span class="special">;</span> |
| |
| <span class="keyword">void</span> <span class="identifier">increment</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="special">++</span><span class="identifier">_ringIter</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">void</span> <span class="identifier">decrement</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="special">--</span><span class="identifier">_ringIter</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">void</span> <span class="identifier">advance</span><span class="special">(</span><span class="identifier">difference_type</span> <span class="identifier">n</span><span class="special">)</span> |
| <span class="special">{</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">advance</span><span class="special">(</span><span class="identifier">_ringIter</span><span class="special">,</span><span class="identifier">n</span><span class="special">);</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">difference_type</span> <span class="identifier">distance_to</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">PolyRingIterator</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> |
| <span class="special">{</span> |
| <span class="keyword">return</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">distance</span><span class="special">(</span><span class="identifier">_ringIter</span><span class="special">,</span> <span class="identifier">other</span><span class="special">.</span><span class="identifier">getRingIter</span><span class="special">());</span> |
| <span class="special">}</span> |
| |
| <span class="keyword">bool</span> <span class="identifier">equal</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">PolyRingIterator</span><span class="special">&</span> <span class="identifier">other</span><span class="special">)</span> <span class="keyword">const</span> |
| <span class="special">{</span> |
| <span class="keyword">return</span> <span class="identifier">_ringIter</span> <span class="special">==</span> <span class="identifier">other</span><span class="special">.</span><span class="identifier">getRingIter</span><span class="special">();</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">R</span> <span class="identifier">dereference</span><span class="special">()</span> <span class="keyword">const</span> <span class="special">{</span><span class="keyword">return</span> <span class="special">*(*</span><span class="identifier">_ringIter</span><span class="special">);}</span> |
| |
| <span class="identifier">I</span> <span class="identifier">_ringIter</span><span class="special">;</span> |
| <span class="special">};</span> |
| </pre> |
| <h4> |
| <a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.h8"></a> |
| <span class="phrase"><a name="geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_range_for_polygonringiterator"></a></span><a class="link" href="example_source_code__adapting_a_legacy_geometry_object_model.html#geometry.examples.example_source_code__adapting_a_legacy_geometry_object_model.boost_range_for_polygonringiterator">Boost.Range |
| for PolygonRingIterator</a> |
| </h4> |
| <a name="adaption_of_qpolygon_range_source_code"></a><pre class="programlisting"><span class="keyword">typedef</span> <span class="identifier">PolyRingIterator</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QRing</span><span class="special">*>::</span><span class="identifier">iterator</span><span class="special">,</span> <span class="identifier">QRing</span><span class="special">></span> <span class="identifier">PolygonRingIterator</span><span class="special">;</span> |
| <span class="keyword">typedef</span> <span class="identifier">PolyRingIterator</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">QRing</span><span class="special">*>::</span><span class="identifier">const_iterator</span><span class="special">,</span> <span class="keyword">const</span> <span class="identifier">QRing</span><span class="special">></span> <span class="identifier">ConstPolygonRingIterator</span><span class="special">;</span> |
| |
| <span class="keyword">class</span> <span class="identifier">CustomPolygonRingRange</span> |
| <span class="special">{</span> |
| <span class="identifier">PolygonRingIterator</span> <span class="identifier">_begin</span><span class="special">;</span> |
| <span class="identifier">PolygonRingIterator</span> <span class="identifier">_end</span><span class="special">;</span> |
| |
| <span class="keyword">bool</span> <span class="identifier">isIterSet</span><span class="special">;</span> |
| |
| <span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">_cbegin</span><span class="special">;</span> |
| <span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">_cend</span><span class="special">;</span> |
| |
| <span class="keyword">bool</span> <span class="identifier">isCIterSet</span><span class="special">;</span> |
| |
| <span class="keyword">public</span><span class="special">:</span> |
| |
| <span class="identifier">CustomPolygonRingRange</span><span class="special">(</span><span class="identifier">PolygonRingIterator</span> <span class="identifier">begin</span><span class="special">,</span> <span class="identifier">PolygonRingIterator</span> <span class="identifier">end</span><span class="special">)</span> <span class="special">:</span> <span class="identifier">_begin</span><span class="special">(</span><span class="identifier">begin</span><span class="special">),</span> <span class="identifier">_end</span><span class="special">(</span><span class="identifier">end</span><span class="special">),</span> <span class="identifier">isIterSet</span><span class="special">(</span><span class="keyword">true</span><span class="special">)</span> <span class="special">{}</span> |
| <span class="identifier">CustomPolygonRingRange</span><span class="special">(</span><span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">begin</span><span class="special">,</span> <span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">end</span><span class="special">)</span> <span class="special">:</span> <span class="identifier">_cbegin</span><span class="special">(</span><span class="identifier">begin</span><span class="special">),</span> <span class="identifier">_cend</span><span class="special">(</span><span class="identifier">end</span><span class="special">),</span> <span class="identifier">isCIterSet</span><span class="special">(</span><span class="keyword">true</span><span class="special">)</span> <span class="special">{}</span> |
| |
| <span class="identifier">PolygonRingIterator</span> <span class="identifier">begin</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="identifier">assert</span><span class="special">(</span><span class="identifier">isIterSet</span><span class="special">);</span> |
| <span class="keyword">return</span> <span class="identifier">_begin</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">cbegin</span><span class="special">()</span> <span class="keyword">const</span> |
| <span class="special">{</span> |
| <span class="identifier">assert</span><span class="special">(</span><span class="identifier">isCIterSet</span><span class="special">);</span> |
| <span class="keyword">return</span> <span class="identifier">_cbegin</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">PolygonRingIterator</span> <span class="identifier">end</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="identifier">assert</span><span class="special">(</span><span class="identifier">isIterSet</span><span class="special">);</span> |
| <span class="keyword">return</span> <span class="identifier">_end</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| <span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">cend</span><span class="special">()</span> <span class="keyword">const</span> |
| <span class="special">{</span> |
| <span class="identifier">assert</span><span class="special">(</span><span class="identifier">isCIterSet</span><span class="special">);</span> |
| <span class="keyword">return</span> <span class="identifier">_cend</span><span class="special">;</span> |
| <span class="special">}</span> |
| <span class="special">};</span> |
| |
| <span class="keyword">namespace</span> <span class="identifier">boost</span> |
| <span class="special">{</span> |
| <span class="comment">// Specialize metafunctions. We must include the range.hpp header.</span> |
| <span class="comment">// We must open the 'boost' namespace.</span> |
| |
| <span class="keyword">template</span> <span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">range_iterator</span><span class="special"><</span><span class="identifier">CustomPolygonRingRange</span><span class="special">></span> <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">PolygonRingIterator</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| |
| <span class="keyword">template</span><span class="special"><></span> |
| <span class="keyword">struct</span> <span class="identifier">range_const_iterator</span><span class="special"><</span><span class="identifier">CustomPolygonRingRange</span><span class="special">></span> <span class="special">{</span> <span class="keyword">typedef</span> <span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">type</span><span class="special">;</span> <span class="special">};</span> |
| |
| <span class="special">}</span> <span class="comment">// namespace 'boost'</span> |
| |
| |
| <span class="comment">// The required Range functions. These should be defined in the same namespace</span> |
| <span class="comment">// as Ring.</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">PolygonRingIterator</span> <span class="identifier">range_begin</span><span class="special">(</span><span class="identifier">CustomPolygonRingRange</span><span class="special">&</span> <span class="identifier">r</span><span class="special">)</span> |
| <span class="special">{</span><span class="keyword">return</span> <span class="identifier">r</span><span class="special">.</span><span class="identifier">begin</span><span class="special">();}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">range_begin</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">CustomPolygonRingRange</span><span class="special">&</span> <span class="identifier">r</span><span class="special">)</span> |
| <span class="special">{</span><span class="keyword">return</span> <span class="identifier">r</span><span class="special">.</span><span class="identifier">cbegin</span><span class="special">();}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">PolygonRingIterator</span> <span class="identifier">range_end</span><span class="special">(</span><span class="identifier">CustomPolygonRingRange</span><span class="special">&</span> <span class="identifier">r</span><span class="special">)</span> |
| <span class="special">{</span><span class="keyword">return</span> <span class="identifier">r</span><span class="special">.</span><span class="identifier">end</span><span class="special">();}</span> |
| |
| <span class="keyword">inline</span> <span class="identifier">ConstPolygonRingIterator</span> <span class="identifier">range_end</span><span class="special">(</span><span class="keyword">const</span> <span class="identifier">CustomPolygonRingRange</span><span class="special">&</span> <span class="identifier">r</span><span class="special">)</span> |
| <span class="special">{</span><span class="keyword">return</span> <span class="identifier">r</span><span class="special">.</span><span class="identifier">cend</span><span class="special">();}</span> |
| </pre> |
| </div> |
| <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> |
| <td align="left"></td> |
| <td align="right"><div class="copyright-footer">Copyright © 2009-2015 Barend Gehrels, Bruno Lalande, |
| Mateusz Loskot, Adam Wulkiewicz, Oracle and/or its affiliates<p> |
| Distributed under the Boost Software License, Version 1.0. (See accompanying |
| file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) |
| </p> |
| </div></td> |
| </tr></table> |
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