fix buttons when tables are sorted

gui/griffon-app/controllers/com/muwire/gui/MainFrameController.groovy

@@ -82,11 +82,18 @@ class MainFrameController {
         int row = table.getSelectedRow()
         if (row == -1)
             return
+        def sortEvt = group.view.lastSortEvent
+        if (sortEvt != null) {
+            row = sortEvt.convertPreviousRowIndexToModel(row)
+        }
         group.model.results[row]        
     }
     
     private def selectedDownload() {
         def selected = builder.getVariable("downloads-table").getSelectedRow()
+        def sortEvt = mvcGroup.view.lastDownloadSortEvent
+        if (sortEvt != null)
+            selected = sortEvt.convertPreviousRowIndexToModel(selected)
         model.downloads[selected].downloader
     }
     

gui/griffon-app/views/com/muwire/gui/MainFrameView.groovy

@@ -37,6 +37,9 @@ class MainFrameView {
     @MVCMember @Nonnull
     MainFrameModel model
     
+    def downloadsTable
+    def lastDownloadSortEvent
+    
     void initUI() {
         builder.with {
             application(size : [1024,768], id: 'main-frame',
@@ -105,7 +108,7 @@ class MainFrameView {
                             panel (constraints : JSplitPane.BOTTOM) {
                                 borderLayout()
                                 scrollPane (constraints : BorderLayout.CENTER) {
-                                    table(id : "downloads-table", autoCreateRowSorter : true) {
+                                    downloadsTable = table(id : "downloads-table", autoCreateRowSorter : true) {
                                         tableModel(list: model.downloads) {
                                             closureColumn(header: "Name", preferredWidth: 350, type: String, read : {row -> row.downloader.file.getName()})
                                             closureColumn(header: "Status", preferredWidth: 50, type: String, read : {row -> row.downloader.getCurrentState()})
@@ -280,7 +283,9 @@ class MainFrameView {
         
         def centerRenderer = new DefaultTableCellRenderer()
         centerRenderer.setHorizontalAlignment(JLabel.CENTER)
-        builder.getVariable("downloads-table").setDefaultRenderer(Integer.class, centerRenderer)
+        downloadsTable.setDefaultRenderer(Integer.class, centerRenderer)
+        
+        downloadsTable.rowSorter.addRowSorterListener({evt -> lastDownloadSortEvent = evt})
     }
 
     def showSearchWindow = {

gui/griffon-app/views/com/muwire/gui/SearchTabView.groovy

@@ -26,6 +26,7 @@ class SearchTabView {
     def parent
     def searchTerms
     def resultsTable
+    def lastSortEvent
     
     void initUI() {
         builder.with {
@@ -84,6 +85,8 @@ class SearchTabView {
         resultsTable.columnModel.getColumn(1).setCellRenderer(centerRenderer)
         resultsTable.setDefaultRenderer(Integer.class,centerRenderer)
         resultsTable.columnModel.getColumn(4).setCellRenderer(centerRenderer)
+        
+        resultsTable.rowSorter.addRowSorterListener({ evt -> lastSortEvent = evt})
     }
     
     def closeTab = {