[vcs-log] main frame gets VcsDataKeys.CHANGES or VcsDataKeys.SELECTED_CHANGES from changes view; hence remove some unused methods from table and model

platform/vcs-log/impl/src/com/intellij/vcs/log/ui/frame/MainFrame.java

@@ -304,10 +304,7 @@ public class MainFrame extends JPanel implements TypeSafeDataProvider {
       sink.put(key, myLogDataHolder);
     }
     else if (VcsDataKeys.CHANGES == key || VcsDataKeys.SELECTED_CHANGES == key) {
-      List<Change> selectedChanges = myGraphTable.getSelectedChanges(MAX_SELECTED_COMMITS);
-      if (selectedChanges != null) {
-        sink.put(key, ArrayUtil.toObjectArray(selectedChanges, Change.class));
-      }
+      sink.put(key, ArrayUtil.toObjectArray(myChangesBrowser.getCurrentDisplayedChanges(), Change.class));
     }
     else if (VcsDataKeys.CHANGE_LISTS == key) {
       List<VcsFullCommitDetails> details = myUI.getVcsLog().getSelectedDetails();

platform/vcs-log/impl/src/com/intellij/vcs/log/ui/frame/VcsLogGraphTable.java

@@ -260,26 +260,6 @@ public class VcsLogGraphTable extends JBTable implements TypeSafeDataProvider, C
     }
   }
 
-  @Nullable
-  public List<Change> getSelectedChanges(int maxChanges) {
-    TableModel model = getModel();
-    if (!(model instanceof GraphTableModel)) {
-      return null;
-    }
-
-    int[] selectedRows = getSelectedRows();
-    if (selectedRows.length > maxChanges) return null;
-
-    List<Integer> rows = ContainerUtil.newArrayList();
-    for (int row : selectedRows) {
-      rows.add(row);
-    }
-    Collections.sort(rows, Collections.reverseOrder());
-
-    List<Change> changes = ((GraphTableModel)model).getSelectedChanges(rows);
-    return changes == null ? null : CommittedChangesTreeBrowser.zipChanges(changes);
-  }
-
   @Override
   public void calcData(DataKey key, DataSink sink) {
     if (PlatformDataKeys.COPY_PROVIDER == key) {

platform/vcs-log/impl/src/com/intellij/vcs/log/ui/tables/GraphTableModel.java

@@ -5,14 +5,15 @@ import com.intellij.openapi.diagnostic.Logger;
 import com.intellij.openapi.util.Condition;
 import com.intellij.openapi.util.EmptyRunnable;
 import com.intellij.openapi.util.text.StringUtil;
-import com.intellij.openapi.vcs.changes.Change;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.util.Function;
 import com.intellij.util.containers.ContainerUtil;
 import com.intellij.util.text.DateFormatUtil;
 import com.intellij.vcs.log.*;
 import com.intellij.vcs.log.data.CommitIdByStringCondition;
-import com.intellij.vcs.log.data.LoadingDetails;
+import com.intellij.vcs.log.Hash;
+import com.intellij.vcs.log.VcsRef;
+import com.intellij.vcs.log.VcsShortCommitDetails;
 import com.intellij.vcs.log.data.VcsLogDataHolder;
 import com.intellij.vcs.log.data.VisiblePack;
 import com.intellij.vcs.log.graph.GraphCommit;
@@ -204,26 +205,6 @@ public class GraphTableModel extends AbstractTableModel {
     return !myMoreRequested && myDataPack.canRequestMore();
   }
 
-  /**
-   * Returns Changes for commits at selected rows.<br/>
-   * Rows are given in the order as they appear in the table, i. e. in reverse chronological order. <br/>
-   * Changes can be returned as-is, i.e. with duplicate changes for a single file.
-   *
-   * @return Changes selected in all rows, or null if this data is not ready yet.
-   */
-  @Nullable
-  public List<Change> getSelectedChanges(@NotNull List<Integer> selectedRows) {
-    List<Change> changes = new ArrayList<Change>();
-    for (int row : selectedRows) {
-      VcsFullCommitDetails commitData = myLogDataHolder.getCommitDetailsGetter().getCommitData(row, this);
-      if (commitData instanceof LoadingDetails) {
-        return null;
-      }
-      changes.addAll(commitData.getChanges());
-    }
-    return changes;
-  }
-
   @Override
   public Class<?> getColumnClass(int column) {
     switch (column) {