fix buggin/dlangide#138

src/dlangui/core/collections.d

@@ -333,6 +333,16 @@ struct ObjectList(T) {
         }
         _count = 0;
     }
+    /// Support foreach
+    int opApply(int delegate(ref T) callback) {
+        int res = 0;
+        for(int i = 0; i < _count; i++) {
+            res = callback(_list[i]);
+            if (res)
+                break;
+        }
+        return res;
+    }
     ~this() {
         clear();
     }

src/dlangui/widgets/combobox.d

@@ -162,6 +162,16 @@ class ComboBoxBase : HorizontalLayout, OnClickHandler {
         initialize();
     }
 
+    override void onThemeChanged() {
+        super.onThemeChanged();
+        if (_body)
+            _body.onThemeChanged();
+        if (_adapter)
+            _adapter.onThemeChanged();
+        if (_button)
+            _button.onThemeChanged();
+    }
+
     protected void initialize() {
         _body = createSelectedItemWidget();
         _body.click = this;

src/dlangui/widgets/lists.d

@@ -53,6 +53,9 @@ interface ListAdapter {
     ListAdapter connect(OnAdapterChangeHandler handler);
     /// disconnect adapter change handler
     ListAdapter disconnect(OnAdapterChangeHandler handler);
+
+    /// called when theme is changed
+    void onThemeChanged();
 }
 
 /// List adapter for simple list of widget instances
@@ -114,6 +117,10 @@ class ListAdapterBase : ListAdapter {
         if (adapterChanged.assigned)
             adapterChanged.emit(this);
     }
+
+    /// called when theme is changed
+    void onThemeChanged() {
+    }
 }
 
 /// List adapter for simple list of widget instances
@@ -159,6 +166,12 @@ class WidgetListAdapter : ListAdapterBase {
         _widgets.clear();
         updateViews();
     }
+    /// called when theme is changed
+    override void onThemeChanged() {
+        super.onThemeChanged();
+        foreach(w; _widgets)
+            w.onThemeChanged();
+    }
     ~this() {
         //Log.d("Destroying WidgetListAdapter");
     }
@@ -422,6 +435,13 @@ class StringListAdapter : StringListAdapterBase {
         return _widget;
     }
 
+    /// called when theme is changed
+    override void onThemeChanged() {
+        super.onThemeChanged();
+        if (_widget)
+            _widget.onThemeChanged();
+    }
+
     /// set one or more list item's state flags, returns updated state
     override uint setItemState(int index, uint flags) {
         uint res = super.setItemState(index, flags);
@@ -489,6 +509,13 @@ class IconStringListAdapter : StringListAdapterBase {
         return _widget;
     }
 
+    /// called when theme is changed
+    override void onThemeChanged() {
+        super.onThemeChanged();
+        if (_widget)
+            _widget.onThemeChanged();
+    }
+
     /// set one or more list item's state flags, returns updated state
     override uint setItemState(int index, uint flags) {
         uint res = super.setItemState(index, flags);
@@ -894,6 +921,8 @@ class ListWidget : WidgetGroup, OnScrollHandler, OnAdapterChangeHandler {
             Widget w = itemWidget(i);
             w.onThemeChanged();
         }
+        if (_adapter)
+            _adapter.onThemeChanged();
     }
 
     /// Measure widget according to desired width and height constraints. (Step 1 of two phase layout).