--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/name/blackcap/exifwasher/ShowDialog.kt	Wed Apr 08 20:29:12 2020 -0700
@@ -0,0 +1,109 @@
+/*
+ * The dialog that displays the Exif data in a single file (display only,
+ * no changing). We do this after washing.
+ */
+package name.blackcap.exifwasher
+
+import java.awt.event.ActionEvent
+import java.awt.event.ActionListener
+import java.io.File
+import java.io.IOException
+import java.util.logging.Level
+import java.util.logging.Logger
+import javax.swing.*
+import javax.swing.table.DefaultTableModel
+import javax.swing.table.TableColumn
+import javax.swing.table.TableColumnModel
+
+import name.blackcap.exifwasher.exiv2.*
+
+class ShowDialog : JDialog(Application.mainFrame) {
+    private val BW = 9
+    private val BW2 = BW * 2
+    private val WIDTH = 640
+    private val HEIGHT = 480
+
+    private val myTable = JTable().apply {
+        autoCreateRowSorter = false
+        rowSorter = null
+        columnModel.run {
+            getColumn(0).preferredWidth = 25  /* key name */
+            getColumn(1).preferredWidth = 15  /* type */
+            getColumn(2).preferredWidth = 100  /* value */
+        }
+    }
+
+    /* deliberately not the default, because this changes a file */
+    private val dismissButton = JButton("Dismiss").also {
+        it.addActionListener(ActionListener { close() })
+        it.border = BorderFactory.createEmptyBorder(0, BW, 0, BW)
+    }
+
+    /* controls the washing of the Exif data */
+    fun show(image: File) {
+        title = "Washed: ${image.name}"
+        useWaitCursor()
+        swingWorker<Array<Array<String>>?> {
+            inBackground {
+                try {
+                    val image = Image(image.absolutePath)
+                    val meta = image.meta
+                    val keys = meta.keys
+                    keys.sort()
+                    Array<Array<String>>(keys.size) {
+                        val key = keys[it]
+                        val value = meta[key]
+                        arrayOf<String>(key, value.type, value.value)
+                    }
+                } catch (e: Exiv2Exception) {
+                    LOGGER.log(Level.SEVERE, "unable to read metadata", e)
+                    null
+                }
+            }
+            whenDone {
+                useNormalCursor()
+                val tableData = get()
+                if (tableData == null) {
+                    JOptionPane.showMessageDialog(Application.mainFrame,
+                        "Unable to read metadata.",
+                        "Error", JOptionPane.ERROR_MESSAGE)
+                } else {
+                    val colNames = arrayOf("Key", "Type", "Value")
+                    myTable.apply {
+                        model = MyTableModel(tableData, colNames)
+                        validate()
+                    }
+                    setVisible(true)
+                }
+            }
+        }
+    }
+
+    private class MyTableModel : DefaultTableModel {
+        override fun isCellEditable(row: Int, col: Int) = false
+        override fun getColumnClass(col: Int) = java.lang.String::class.java
+    }
+
+    init {
+        defaultCloseOperation = JDialog.DISPOSE_ON_CLOSE /* delete if reusing */
+        title = "Untitled"
+        contentPane.apply {
+            layout = BoxLayout(this, BoxLayout.Y_AXIS)
+            add(JScrollPane(myTable).apply {
+                alignmentX = JScrollPane.CENTER_ALIGNMENT
+                border = BorderFactory.createEmptyBorder(BW2, BW2, BW, BW2)
+                verticalScrollBarPolicy = ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS
+                horizontalScrollBarPolicy = ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER
+                preferredSize = Dimension(WIDTH, HEIGHT)
+                background = Application.mainFrame.background
+            })
+            add(Box(BoxLayout.X_AXIS).apply {
+                alignmentX = Box.CENTER_ALIGNMENT
+                border = BorderFactory.createEmptyBorder(BW, BW, BW2, BW)
+                add(Box.createHorizontalGlue())
+                add(dismissButton)
+            })
+        }
+        pack()
+    }
+}