Provide toolbar to move filename templates

src/main/kotlin/de/idetools/filename_template/settings/FilenameTemplateSettingsComponent.kt

@@ -39,6 +39,16 @@ class FilenameTemplateSettingsComponent(val filenameTemplates: ArrayList<Filenam
                 filenameTemplateTableModel.removeRows(table.selectedRows)
             }
         })
+        actionGroup.add(object : AnAction("Up", "Move selected filename templates up", AllIcons.Actions.MoveUp) {
+            override fun actionPerformed(e: AnActionEvent) {
+                filenameTemplateTableModel.moveRowsUp(table.selectedRows)
+            }
+        })
+        actionGroup.add(object : AnAction("Down", "Move selected filename templates down", AllIcons.Actions.MoveDown) {
+            override fun actionPerformed(e: AnActionEvent) {
+                filenameTemplateTableModel.moveRowsDown(table.selectedRows)
+            }
+        })
         val toolbar = ActionManager.getInstance().createActionToolbar("MyToolbar", actionGroup, false)
         panel.add(toolbar.component)
         return panel

src/main/kotlin/de/idetools/filename_template/settings/FilenameTemplateTableModel.kt

@@ -41,10 +41,44 @@ class FilenameTemplateTableModel(private val filenameTemplates: ArrayList<Filena
     }
 
     fun removeRows(selectedRows: IntArray) {
-        Arrays.sort(selectedRows)
+        selectedRows.sort()
         for (i in selectedRows.indices.reversed()) {
             filenameTemplates.removeAt(selectedRows[i])
         }
         fireTableDataChanged()
     }
+
+    fun moveRowsUp(selectedRows: IntArray) {
+        selectedRows.sort()
+        var minRow = 0
+        for (currentRow in selectedRows) {
+            val targetRow = currentRow - 1
+            minRow = if (minRow <= targetRow) {
+                val filenameTemplate = filenameTemplates[currentRow]
+                filenameTemplates.removeAt(currentRow)
+                filenameTemplates.add(targetRow, filenameTemplate)
+                currentRow
+            } else {
+                currentRow + 1
+            }
+        }
+        fireTableDataChanged()
+    }
+
+    fun moveRowsDown(selectedRows: IntArray) {
+        selectedRows.sortDescending()
+        var maxRow = filenameTemplates.size - 1
+        for (currentRow in selectedRows) {
+            val targetRow = currentRow + 1
+            maxRow = if (targetRow <= maxRow) {
+                val filenameTemplate = filenameTemplates[currentRow]
+                filenameTemplates.removeAt(currentRow)
+                filenameTemplates.add(targetRow, filenameTemplate)
+                currentRow
+            } else {
+                currentRow - 1
+            }
+        }
+        fireTableDataChanged()
+    }
 }