Fix Coverity divide by 0 error

nyalldawson · nyalldawson · commit e4d6bbfe7614 · 2017-04-17T12:44:54.000+10:00
diff --git a/src/server/services/wms/qgswmsrenderer.cpp b/src/server/services/wms/qgswmsrenderer.cpp
@@ -1219,7 +1219,7 @@ namespace QgsWms
       {
         mapExtent.invert();
       }
-      if ( !mapExtent.isEmpty() && height > 0 )
+      if ( !mapExtent.isEmpty() && height > 0 && width > 0 )
       {
         double mapWidthHeightRatio = mapExtent.width() / mapExtent.height();
         double imageWidthHeightRatio = ( double )width / ( double )height;

Original file line number	Diff line number	Diff line change
`@@ -1219,7 +1219,7 @@ namespace QgsWms`
`1219`	`1219`	`{`
`1220`	`1220`	`mapExtent.invert();`
`1221`	`1221`	`}`
`1222`		`- if ( !mapExtent.isEmpty() && height > 0 )`
	`1222`	`+ if ( !mapExtent.isEmpty() && height > 0 && width > 0 )`
`1223`	`1223`	`{`
`1224`	`1224`	`double mapWidthHeightRatio = mapExtent.width() / mapExtent.height();`
`1225`	`1225`	`double imageWidthHeightRatio = ( double )width / ( double )height;`