Changeset 17062 for stable/HeuristicLab.Problems.DataAnalysis.Symbolic.Views/3.4/InteractiveSymbolicDataAnalysisSolutionSimplifierView.cs

Timestamp:

07/04/19 14:45:47 (5 years ago)

Author:

mkommend

Message:

#2845: Merged 16430 into stable.

Location:

stable

Files:

• . (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic.Views (modified) (1 prop)
• HeuristicLab.Problems.DataAnalysis.Symbolic.Views/3.4/InteractiveSymbolicDataAnalysisSolutionSimplifierView.cs (modified) (8 diffs)

stable/HeuristicLab.Problems.DataAnalysis.Symbolic.Views/3.4/InteractiveSymbolicDataAnalysisSolutionSimplifierView.cs

@@ -24 +24 @@
 using System.Drawing;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using System.Windows.Forms;
@@ -40 +41 @@
     private readonly ISymbolicDataAnalysisSolutionImpactValuesCalculator impactCalculator;
 
-    private readonly IProgress progress = new Progress();
+    private readonly Progress progress = new Progress();
+    private CancellationTokenSource cancellationTokenSource;
 
     private enum TreeState { Valid, Invalid }
@@ -152 +154 @@
       Content.ProblemDataChanged += Content_Changed;
       treeChart.Repainted += treeChart_Repainted;
-      MainFormManager.GetMainForm<MainForm.WindowsForms.MainForm>().AddOperationProgressToView(grpSimplify, progress);
+      Progress.ShowOnControl(grpSimplify, progress);
+      progress.StopRequested += progress_StopRequested;
     }
     protected override void DeregisterContentEvents() {
@@ -159 +162 @@
       Content.ProblemDataChanged -= Content_Changed;
       treeChart.Repainted -= treeChart_Repainted;
-      MainFormManager.GetMainForm<MainForm.WindowsForms.MainForm>().RemoveOperationProgressFromView(grpSimplify, false);
+      Progress.HideFromControl(grpSimplify, false);
+      progress.StopRequested -= progress_StopRequested;
     }
 
@@ -178 +182 @@
     }
 
+    private void progress_StopRequested(object sender, EventArgs e) {
+      cancellationTokenSource.Cancel();
+    }
+
     private async void UpdateView() {
       if (Content == null || Content.Model == null || Content.ProblemData == null) return;
@@ -184 +192 @@
 
       progress.Start("Calculate Impact and Replacement Values ...");
+      progress.CanBeStopped = true;
+      cancellationTokenSource = new CancellationTokenSource();
       var impactAndReplacementValues = await Task.Run(() => CalculateImpactAndReplacementValues(tree));
-      await Task.Delay(500); // wait for progressbar to finish animation
+      try {
+        await Task.Delay(500, cancellationTokenSource.Token); // wait for progressbar to finish animation
+      } catch (OperationCanceledException) { }
       var replacementValues = impactAndReplacementValues.ToDictionary(x => x.Key, x => x.Value.Item2);
       foreach (var pair in replacementValues.Where(pair => !(pair.Key is ConstantTreeNode))) {
@@ -192 +204 @@
       nodeImpacts = impactAndReplacementValues.ToDictionary(x => x.Key, x => x.Value.Item1);
       progress.Finish();
+      progress.CanBeStopped = false;
       PaintNodeImpacts();
     }
@@ -198 +211 @@
       var impactAndReplacementValues = new Dictionary<ISymbolicExpressionTreeNode, Tuple<double, double>>();
       foreach (var node in tree.Root.GetSubtree(0).GetSubtree(0).IterateNodesPrefix()) {
+        if (progress.ProgressState == ProgressState.StopRequested) continue;
         double impactValue, replacementValue, newQualityForImpactsCalculation;
         impactCalculator.CalculateImpactAndReplacementValues(Content.Model, node, Content.ProblemData, Content.ProblemData.TrainingIndices, out impactValue, out replacementValue, out newQualityForImpactsCalculation);