chore: 优化一下

src/case/linersegment/button.linear.segment.js

@@ -5,7 +5,7 @@ BI.LinearSegmentButton = BI.inherit(BI.BasicButton, {
         once: true,
         readonly: true,
         hgap: 10,
-        height: 25
+        height: 24
     },
 
     render: function () {
@@ -15,6 +15,7 @@ BI.LinearSegmentButton = BI.inherit(BI.BasicButton, {
             type: "bi.label",
             text: o.text,
             height: o.height,
+            textHeight: o.height - 2,
             value: o.value,
             hgap: o.hgap,
             ref: function () {

src/case/linersegment/linear.segment.js

@@ -6,7 +6,7 @@ BI.LinearSegment = BI.inherit(BI.Widget, {
         layouts: [{
             type: "bi.center"
         }],
-        height: 29
+        height: 30
     },
 
     render: function () {
@@ -15,7 +15,7 @@ BI.LinearSegment = BI.inherit(BI.Widget, {
             type: "bi.button_group",
             items: BI.createItems(o.items, {
                 type: "bi.linear_segment_button",
-                height: o.height - 1
+                height: o.height
             }),
             layouts: o.layouts,
             value: o.value,