ogr__featurestyle_8h-source.html

gdal库的学习文档

<a name="l00134"></a>00134     OGRSTVectorSprain,
<a name="l00135"></a>00135     OGRSTVectorNoSlope,
<a name="l00136"></a>00136     OGRSTVectorMirroring,
<a name="l00137"></a>00137     OGRSTVectorCentering,
<a name="l00138"></a>00138     OGRSTVectorPriority,
<a name="l00139"></a>00139     OGRSTVectorLast
<a name="l00140"></a>00140               
<a name="l00141"></a>00141 } OGRSTVectorParam;
<a name="l00142"></a>00142 
<a name="l00143"></a>00143 <span class="keyword">typedef</span> <span class="keyword">enum</span> ogr_style_type
<a name="l00144"></a>00144 {
<a name="l00145"></a>00145     OGRSTypeString,
<a name="l00146"></a>00146     OGRSTypeDouble,
<a name="l00147"></a>00147     OGRSTypeInteger,
<a name="l00148"></a>00148     OGRSTypeBoolean
<a name="l00149"></a>00149 }  OGRSType;
<a name="l00150"></a>00150 
<a name="l00151"></a>00151 <span class="keyword">typedef</span> <span class="keyword">struct </span>ogr_style_param
<a name="l00152"></a>00152 {
<a name="l00153"></a>00153     <span class="keywordtype">int</span>              eParam;
<a name="l00154"></a>00154     <span class="keywordtype">char</span>            *pszToken;
<a name="l00155"></a>00155     GBool            bGeoref;
<a name="l00156"></a>00156     OGRSType         eType;
<a name="l00157"></a>00157 }OGRStyleParamId;
<a name="l00158"></a>00158 
<a name="l00159"></a>00159 
<a name="l00160"></a>00160 <span class="keyword">typedef</span> <span class="keyword">struct </span>ogr_style_value
<a name="l00161"></a>00161 {
<a name="l00162"></a>00162     <span class="keywordtype">char</span>            *pszValue;
<a name="l00163"></a>00163     <span class="keywordtype">double</span>           dfValue;
<a name="l00164"></a>00164     <span class="keywordtype">int</span>              nValue; <span class="comment">// Used for both integer and boolean types</span>
<a name="l00165"></a>00165     GBool            bValid;
<a name="l00166"></a>00166     OGRSTUnitId      eUnit;
<a name="l00167"></a>00167 }OGRStyleValue;
<a name="l00168"></a>00168 
<a name="l00169"></a>00169 
<a name="l00170"></a>00170 <span class="comment">//Everytime a pszStyleString gived in parameter is NULL, </span>
<a name="l00171"></a>00171 <span class="comment">//    the StyleString defined in the Mgr will be use.</span>
<a name="l00172"></a>00172 
<a name="l00173"></a>00173 <span class="keyword">class </span>CPL_DLL OGRStyleTable
<a name="l00174"></a>00174 {
<a name="l00175"></a>00175   <span class="keyword">private</span>:
<a name="l00176"></a>00176     <span class="keywordtype">char</span> **m_papszStyleTable;
<a name="l00177"></a>00177 
<a name="l00178"></a>00178   <span class="keyword">public</span>:
<a name="l00179"></a>00179     OGRStyleTable();
<a name="l00180"></a>00180     ~OGRStyleTable();
<a name="l00181"></a>00181     GBool AddStyle(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszName,<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString);
<a name="l00182"></a>00182     GBool RemoveStyle(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszName);
<a name="l00183"></a>00183     GBool ModifyStyle(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszName, <span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString);
<a name="l00184"></a>00184     
<a name="l00185"></a>00185     GBool SaveStyleTable(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszFilename);
<a name="l00186"></a>00186     GBool LoadStyleTable(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszFilename);
<a name="l00187"></a>00187     <span class="keyword">const</span> <span class="keywordtype">char</span> *Find(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString);
<a name="l00188"></a>00188     GBool IsExist(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszName);
<a name="l00189"></a>00189     <span class="keyword">const</span> <span class="keywordtype">char</span> *GetStyleName(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszName);
<a name="l00190"></a>00190     <span class="keywordtype">void</span>  Print(FILE *fpOut);
<a name="l00191"></a>00191     <span class="keywordtype">void</span>  Clear();
<a name="l00192"></a>00192     OGRStyleTable   *Clone();
<a name="l00193"></a>00193 };
<a name="l00194"></a>00194 
<a name="l00195"></a>00195 
<a name="l00196"></a>00196 <span class="keyword">class </span>OGRStyleTool;
<a name="l00197"></a>00197 
<a name="l00198"></a>00198 <span class="keyword">class </span>CPL_DLL OGRStyleMgr
<a name="l00199"></a>00199 {
<a name="l00200"></a>00200   <span class="keyword">private</span>:
<a name="l00201"></a>00201     OGRStyleTable   *m_poDataSetStyleTable;
<a name="l00202"></a>00202     <span class="keywordtype">char</span>            *m_pszStyleString;
<a name="l00203"></a>00203 
<a name="l00204"></a>00204   <span class="keyword">public</span>:
<a name="l00205"></a>00205     OGRStyleMgr(OGRStyleTable *poDataSetStyleTable = NULL);
<a name="l00206"></a>00206     ~OGRStyleMgr();
<a name="l00207"></a>00207 
<a name="l00208"></a>00208     GBool SetFeatureStyleString(<a class="code" href="classOGRFeature.html">OGRFeature</a> *,<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString=NULL,
<a name="l00209"></a>00209                                 GBool bNoMatching = FALSE);
<a name="l00210"></a>00210     <span class="comment">/*it will set in the gived feature the pszStyleString with </span>
<a name="l00211"></a>00211 <span class="comment">            the style or will set the style name found in </span>
<a name="l00212"></a>00212 <span class="comment">            dataset StyleTable (if bNoMatching == FALSE)*/</span>
<a name="l00213"></a>00213               
<a name="l00214"></a>00214     <span class="keyword">const</span> <span class="keywordtype">char</span> *InitFromFeature(<a class="code" href="classOGRFeature.html">OGRFeature</a> *);
<a name="l00215"></a>00215     GBool InitStyleString(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString = NULL);
<a name="l00216"></a>00216     
<a name="l00217"></a>00217     <span class="keyword">const</span> <span class="keywordtype">char</span> *GetStyleName(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString= NULL);
<a name="l00218"></a>00218     <span class="keyword">const</span> <span class="keywordtype">char</span> *GetStyleByName(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleName);
<a name="l00219"></a>00219     
<a name="l00220"></a>00220     GBool AddStyle(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleName, <span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString=NULL);
<a name="l00221"></a>00221     
<a name="l00222"></a>00222     <span class="keyword">const</span> <span class="keywordtype">char</span> *GetStyleString(<a class="code" href="classOGRFeature.html">OGRFeature</a> * = NULL);
<a name="l00223"></a>00223  
<a name="l00224"></a>00224     GBool AddPart(OGRStyleTool *);
<a name="l00225"></a>00225     GBool AddPart(<span class="keyword">const</span> <span class="keywordtype">char</span> *);
<a name="l00226"></a>00226 
<a name="l00227"></a>00227     <span class="keywordtype">int</span> GetPartCount(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString = NULL);
<a name="l00228"></a>00228     OGRStyleTool *GetPart(<span class="keywordtype">int</span> hPartId, <span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString = NULL);
<a name="l00229"></a>00229     
<a name="l00230"></a>00230     <span class="comment">/*It could have a reference counting processus for the OGRStyleTable, if</span>
<a name="l00231"></a>00231 <span class="comment">      needed */</span>
<a name="l00232"></a>00232       
<a name="l00233"></a>00233     OGRStyleTable *GetDataSetStyleTable(){<span class="keywordflow">return</span> m_poDataSetStyleTable;}
<a name="l00234"></a>00234     
<a name="l00235"></a>00235     OGRStyleTool *CreateStyleToolFromStyleString(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString);
<a name="l00236"></a>00236 
<a name="l00237"></a>00237 };
<a name="l00238"></a>00238 
<a name="l00239"></a>00239 <span class="keyword">class </span>CPL_DLL OGRStyleTool
<a name="l00240"></a>00240 {
<a name="l00241"></a>00241   <span class="keyword">private</span>:
<a name="l00242"></a>00242     GBool m_bModified;
<a name="l00243"></a>00243     GBool m_bParsed;
<a name="l00244"></a>00244     <span class="keywordtype">double</span> m_dfScale;
<a name="l00245"></a>00245     OGRSTUnitId m_eUnit;
<a name="l00246"></a>00246     OGRSTClassId m_eClassId;
<a name="l00247"></a>00247     <span class="keywordtype">char</span> *m_pszStyleString;
<a name="l00248"></a>00248 
<a name="l00249"></a>00249     <span class="keyword">virtual</span> GBool Parse() = 0;
<a name="l00250"></a>00250 
<a name="l00251"></a>00251   <span class="keyword">protected</span>:
<a name="l00252"></a>00252     GBool Parse(OGRStyleParamId* pasStyle,
<a name="l00253"></a>00253                 OGRStyleValue* pasValue,
<a name="l00254"></a>00254                 <span class="keywordtype">int</span> nCount);
<a name="l00255"></a>00255 
<a name="l00256"></a>00256   <span class="keyword">public</span>:
<a name="l00257"></a>00257     
<a name="l00258"></a>00258     OGRStyleTool(){}
<a name="l00259"></a>00259     OGRStyleTool(OGRSTClassId eClassId);
<a name="l00260"></a>00260     <span class="keyword">virtual</span> ~OGRStyleTool();
<a name="l00261"></a>00261 
<a name="l00262"></a>00262     GBool GetRGBFromString(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszColor, <span class="keywordtype">int</span> &amp;nRed, <span class="keywordtype">int</span> &amp;nGreen, 
<a name="l00263"></a>00263                            <span class="keywordtype">int</span> &amp;nBlue, <span class="keywordtype">int</span> &amp;nTransparence);
<a name="l00264"></a>00264     <span class="keywordtype">int</span>   GetSpecificId(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszId, <span class="keyword">const</span> <span class="keywordtype">char</span> *pszWanted);
<a name="l00265"></a>00265 
<a name="l00266"></a>00266     GBool IsStyleModified() {<span class="keywordflow">return</span> m_bModified;}
<a name="l00267"></a>00267     <span class="keywordtype">void</span>  StyleModified() {m_bModified = TRUE;}
<a name="l00268"></a>00268 
<a name="l00269"></a>00269     GBool IsStyleParsed() {<span class="keywordflow">return</span> m_bParsed;}
<a name="l00270"></a>00270     <span class="keywordtype">void</span>  StyleParsed() {m_bParsed = TRUE;}
<a name="l00271"></a>00271     
<a name="l00272"></a>00272     OGRSTClassId GetType();
<a name="l00273"></a>00273 
<a name="l00274"></a>00274     <span class="keywordtype">void</span> SetInternalInputUnitFromParam(<span class="keywordtype">char</span> *pszString);
<a name="l00275"></a>00275     
<a name="l00276"></a>00276     <span class="keywordtype">void</span> SetUnit(OGRSTUnitId,<span class="keywordtype">double</span> dfScale = 1.0); <span class="comment">//the dfScale will be</span>
<a name="l00277"></a>00277          <span class="comment">//used if we are working with Ground Unit ( ground = paper * scale);</span>
<a name="l00278"></a>00278 
<a name="l00279"></a>00279     OGRSTUnitId GetUnit(){<span class="keywordflow">return</span> m_eUnit;}
<a name="l00280"></a>00280     
<a name="l00281"></a>00281     <span class="comment">/* It's existe two way to set the parameters in the Style, with generic</span>
<a name="l00282"></a>00282 <span class="comment">methodes (using a defined enumeration) or with the reel method specific</span>
<a name="l00283"></a>00283 <span class="comment">for Each style tools.*/</span>
<a name="l00284"></a>00284     
<a name="l00285"></a>00285     <span class="keyword">virtual</span> <span class="keyword">const</span> <span class="keywordtype">char</span> *GetStyleString() = 0;
<a name="l00286"></a>00286     <span class="keywordtype">void</span> SetStyleString(<span class="keyword">const</span> <span class="keywordtype">char</span> *pszStyleString);