--- a/src/name/blackcap/clipman/CoerceDialog.kt	Thu Jan 30 21:03:56 2020 -0800
+++ b/src/name/blackcap/clipman/CoerceDialog.kt	Thu Jan 30 22:06:37 2020 -0800
@@ -42,8 +42,6 @@
         it.selectedIndex = DSIZEI
         it.alignmentX = JComboBox.LEFT_ALIGNMENT
         it.setEditable(true)
-        it.actionCommand = "Size"
-        it.addActionListener(this)
     }
     val pSize: Float
     get() {
@@ -65,8 +63,6 @@
         it.selectedIndex = DSIZEI
         it.alignmentX = JComboBox.LEFT_ALIGNMENT
         it.setEditable(true)
-        it.actionCommand = "Size"
-        it.addActionListener(this)
     }
     val mSize: Float
     get() {
@@ -148,17 +144,11 @@
         }
         rootPane.setDefaultButton(_coerce)
         pack()
+        setResizable(false)
     }
 
     override fun actionPerformed(e: ActionEvent) {
         when (e.actionCommand) {
-            "Size" -> {
-                val source = e.source as? JComboBox<Float>
-                if (source != null && (source.selectedItem as Float) < 1.0f) {
-                    Toolkit.getDefaultToolkit().beep()
-                    source.selectedIndex = DSIZEI
-                }
-            }
             "Coerce" -> {
                 setVisible(false)
                 coerce()
@@ -193,6 +183,9 @@
                     "Error",
                     JOptionPane.ERROR_MESSAGE)
             } else {
+                if (badSize(_pSize, "proportionally-spaced") || badSize(_mSize, "monospaced")) {
+                    return
+                }
                 PasteboardItem.write(
                     PasteboardItem.HTML(
                         plain,
@@ -202,6 +195,19 @@
         }
     }
 
+    private fun badSize(control: JComboBox<Float>, fontType: String): Boolean {
+        val size = control.selectedItem as? Float
+        if (size == null || size < 1.0f) {
+            JOptionPane.showMessageDialog(frame.v,
+                "Invalid ${fontType} font size.",
+                "Error",
+                JOptionPane.ERROR_MESSAGE)
+            control.selectedIndex = DSIZEI
+            return true
+        }
+        return false
+    }
+
     private fun getFontIndex(font: String): Int {
         val found = FONTS.indexOf(font)
         if (found < 0) {