dxflib_qcad: add dimscale support for leaders

upstream commit
049e1bf95138f32360609b83372e358963a9dd9c

thirdparty/dxflib_qcad/dl_dxf.cpp

@@ -4061,6 +4061,18 @@ void DL_Dxf::writeLeaderVertex( DL_WriterA& dw,
     }
 }
 
+void DL_Dxf::writeLeaderEnd( DL_WriterA& dw, const DL_LeaderData& data )
+{
+    if( version == DL_VERSION_2000 )
+    {
+        dw.dxfString( 1001, "ACAD" );
+        dw.dxfString( 1000, "DSTYLE" );
+        dw.dxfString( 1002, "{" );
+        dw.dxfInt( 1070, 40 );
+        dw.dxfReal( 1040, data.dimScale );
+        dw.dxfString( 1002, "}" );
+    }
+}
 
 /**
  * Writes the beginning of a hatch entity to the file.

thirdparty/dxflib_qcad/dl_dxf.h

@@ -310,6 +310,8 @@ public:
             const DL_Attributes& attrib );
     void writeLeaderVertex( DL_WriterA& dw,
             const DL_LeaderVertexData& data );
+    void writeLeaderEnd( DL_WriterA& dw,
+            const DL_LeaderData& data );
     void writeHatch1( DL_WriterA& dw,
             const DL_HatchData& data,
             const DL_Attributes& attrib );

thirdparty/dxflib_qcad/dl_entities.h

@@ -1579,23 +1579,25 @@ struct DXFLIB_EXPORT DL_LeaderData
      * Constructor.
      * Parameters: see member variables.
      */
-    DL_LeaderData( int lArrowHeadFlag,
+    DL_LeaderData( int arrowHeadFlag,
-            int lLeaderPathType,
+            int leaderPathType,
-            int lLeaderCreationFlag,
+            int leaderCreationFlag,
-            int lHooklineDirectionFlag,
+            int hooklineDirectionFlag,
-            int lHooklineFlag,
+            int hooklineFlag,
-            double lTextAnnotationHeight,
+            double textAnnotationHeight,
-            double lTextAnnotationWidth,
+            double textAnnotationWidth,
-            int lNumber )
+            int number,
+            double dimScale = 1.0 ) :
+        arrowHeadFlag(arrowHeadFlag),
+        leaderPathType(leaderPathType),
+        leaderCreationFlag(leaderCreationFlag),
+        hooklineDirectionFlag( hooklineDirectionFlag ),
+        hooklineFlag( hooklineFlag ),
+        textAnnotationHeight( textAnnotationHeight ),
+        textAnnotationWidth( textAnnotationWidth ),
+        number( number ),
+        dimScale( dimScale )
     {
-        arrowHeadFlag = lArrowHeadFlag;
-        leaderPathType = lLeaderPathType;
-        leaderCreationFlag = lLeaderCreationFlag;
-        hooklineDirectionFlag = lHooklineDirectionFlag;
-        hooklineFlag = lHooklineFlag;
-        textAnnotationHeight = lTextAnnotationHeight;
-        textAnnotationWidth = lTextAnnotationWidth;
-        number = lNumber;
     }
 
     /*! Arrow head flag (71). */
@@ -1621,6 +1623,9 @@ struct DXFLIB_EXPORT DL_LeaderData
 
     /*! Number of vertices in leader (76). */
     int number;
+
+    /*! Dimension scale (dimscale) style override. */
+    double dimScale;
 };