Added popup to show completion suggestions. issue #20

src/dlangide/ui/dsourceedit.d

@@ -4,6 +4,7 @@ import dlangui.core.logger;
 import dlangui.widgets.editors;
 import dlangui.widgets.srcedit;
 import dlangui.widgets.menu;
+import dlangui.widgets.popup;
 
 import ddc.lexer.textsource;
 import ddc.lexer.exceptions;
@@ -86,11 +87,27 @@ class DSourceEdit : SourceEdit {
         return super.handleAction(a);
     }
 
+
+
+    void showCompletionPopup(dstring[] suggestions) {
+        MenuItem completionPopupItem = new MenuItem(null);
+        //Create popup menu
+        foreach(int i, dstring suggestion ; suggestions) {
+            auto action = new Action(i+1, suggestion);
+            completionPopupItem.add(action);
+        }
+        completionPopupItem.updateActionState(this);
+        PopupMenu popupMenu = new PopupMenu(completionPopupItem);
+        popupMenu.onMenuItemActionListener = this;
+        PopupWidget popup = window.showPopup(popupMenu, this, PopupAlign.Point | PopupAlign.Right, textPosToClient(_caretPos).left + left + _leftPaneWidth, textPosToClient(_caretPos).top + top + margins.top);
+        popup.flags = PopupFlags.CloseOnClickOutside;
+        Log.d("Showing popup at ", textPosToClient(_caretPos).left, " ", textPosToClient(_caretPos).top);
+    }
+
     TextPosition getCaretPosition() {
         return _caretPos;
     }
 
-
 	/// change caret position and ensure it is visible
 	void setCaretPos(int line, int column)
 	{

src/dlangide/ui/frame.d

@@ -10,6 +10,7 @@ import dlangui.widgets.appframe;
 import dlangui.widgets.docks;
 import dlangui.widgets.toolbars;
 import dlangui.widgets.combobox;
+import dlangui.widgets.popup;
 import dlangui.dialogs.dialog;
 import dlangui.dialogs.filedlg;
 import dlangui.core.stdaction;
@@ -520,6 +521,7 @@ class IDEFrame : AppFrame {
                 case IDEActions.GetCompletionSuggestions:
                     Log.d("Getting auto completion suggestions.");
                     auto results = _editorTool.getCompletions(currentEditor, currentEditor.getCaretPosition);
+                    currentEditor.showCompletionPopup(results);
                     return true;
                 default:
                     return super.handleAction(a);