Changeset 13762 for branches/HeuristicLab.Visualization/HeuristicLab.Visualization/3.3/ChartControl.cs

Timestamp:

04/14/16 14:13:57 (8 years ago)

Author:

jkarder

Message:

#1265: worked on visualization

• added shortcut handling prototype

File:

• branches/HeuristicLab.Visualization/HeuristicLab.Visualization/3.3/ChartControl.cs (modified) (3 diffs)

branches/HeuristicLab.Visualization/HeuristicLab.Visualization/3.3/ChartControl.cs

@@ -34 +34 @@
     protected bool RenderingRequired;
     protected Dictionary<Type, ChartMode> Modes = new Dictionary<Type, ChartMode>();
+    protected Stack<ChartMode> ModeStack = new Stack<ChartMode>();
+    protected List<ChartMode.Shortcut> Shortcuts = new List<ChartMode.Shortcut>();
+    protected ChartMode.Shortcut ActiveShortcut;
 
     protected bool SuppressEvents { get; set; }
@@ -88 +91 @@
 
     public void AddChartModes(params ChartMode[] chartModes) {
-      foreach (var chartMode in chartModes)
+      foreach (var chartMode in chartModes) {
         Modes.Add(chartMode.GetType(), chartMode);
+        foreach (var shortcut in chartMode.Shortcuts)
+          Shortcuts.Add(shortcut);
+      }
 
       ReloadModeToolBar();
       ReloadModeContextMenu();
+    }
+
+    public void SetTempChartMode(ChartMode chartMode) {
+      if (Mode == chartMode) return;
+
+      ModeStack.Push(mode);
+      Mode = chartMode;
+    }
+
+    public void ResetTempChartMode() {
+      if (ModeStack.Any())
+        Mode = ModeStack.Pop();
     }
 
@@ -203 +221 @@
 
     protected virtual void OnKeyDown(object sender, KeyEventArgs e) {
-      if (mode != null)
+      if (mode != null) {
         mode.HandleOnKeyDown(sender, e);
+
+        if (e.Handled || ActiveShortcut != null) return;
+
+        foreach (var shortcut in Shortcuts) {
+          if (e.KeyCode == shortcut.Key && e.Modifiers == shortcut.Modifiers) {
+            ActiveShortcut = shortcut;
+            shortcut.DownAction();
+            break;
+          }
+        }
+      }
     }
 
     protected virtual void OnKeyUp(object sender, KeyEventArgs e) {
-      if (mode != null)
+      if (mode != null) {
         mode.HandleOnKeyUp(sender, e);
+
+        if (e.Handled || ActiveShortcut == null) return;
+
+        var modifiers = new List<Keys>(from key in Enum.GetValues(typeof(Keys)).Cast<Keys>()
+                                       where e.Modifiers.HasFlag(key)
+                                       select key);
+
+        if (ActiveShortcut.Key == e.KeyCode || ActiveShortcut.GetModifiers().Except(modifiers).Any()) {
+          ActiveShortcut.UpAction();
+          ActiveShortcut = null;
+        }
+      }
     }