update dark theme; fix drawable overriding in styles/themes

examples/example1/src/example1.d

@@ -228,6 +228,7 @@ extern (C) int UIAppMain(string[] args) {
     Platform.instance.uiLanguage = "en";
     // load theme from file "theme_default.xml"
     Platform.instance.uiTheme = "theme_default";
+    //Platform.instance.uiTheme = "theme_dark";
 
     // you can override default hinting mode here (Normal, AutoHint, Disabled)
     FontManager.hintingMode = HintingMode.Normal;

src/dlangui/widgets/groupbox.d

@@ -28,11 +28,7 @@ class GroupBox : LinearLayout {
     protected TextWidget _caption;
 
     this() {
-        super("GROUP_BOX", Orientation.Vertical);
-        styleId = STYLE_GROUP_BOX;
-        _caption = new TextWidget("GROUP_BOX_CAPTION");
-        _caption.styleId = STYLE_GROUP_BOX_CAPTION;
-
+        this(null, ""d, Orientation.Vertical);
     }
 
     this(string ID, UIString uitext, Orientation orientation = Orientation.Vertical) {
@@ -45,21 +41,11 @@ class GroupBox : LinearLayout {
     }
 
     this(string ID, string textResourceId, Orientation orientation = Orientation.Vertical) {
-        super(ID, orientation);
-        styleId = STYLE_GROUP_BOX;
-        _caption = new TextWidget("GROUP_BOX_CAPTION");
-        _caption.styleId = STYLE_GROUP_BOX_CAPTION;
-        _caption.parent = this;
-        textResource = textResourceId;
+        this(ID, UIString(textResourceId), orientation);
     }
 
     this(string ID, dstring rawText, Orientation orientation = Orientation.Vertical) {
-        super(ID, orientation);
-        _caption = new TextWidget("GROUP_BOX_CAPTION");
-        _caption.styleId = STYLE_GROUP_BOX_CAPTION;
-        _caption.parent = this;
-        styleId = STYLE_GROUP_BOX;
-        text = rawText;
+        this(ID, UIString(rawText), orientation);
     }
 
     ~this() {

src/dlangui/widgets/styles.d

@@ -303,6 +303,9 @@ public:
             s.onThemeChanged();
         foreach(s; _children)
             s.onThemeChanged();
+        foreach(d; _customDrawables)
+            d.clear();
+        destroy(_customDrawables);
     }
 
     @property const(Theme) theme() const {
@@ -1600,7 +1603,7 @@ public:
     @property ref DrawableRef drawable() const {
         if (!_drawable.isNull)
             return (cast(DrawableAttribute)this)._drawable;
-        (cast(DrawableAttribute)this)._drawable = drawableCache.get(_id);
+        (cast(DrawableAttribute)this)._drawable = drawableCache.get(_drawableId);
         (cast(DrawableAttribute)this)._initialized = true;
         return (cast(DrawableAttribute)this)._drawable;
     }

views/res/theme_dark.xml

@@ -98,6 +98,10 @@
     <style id="SCROLLBAR"
         backgroundColor="#C0808080"
         />
+    <style id="SLIDER"
+        backgroundImageId="slider_background_dark"
+        align="Center"
+        />
     <style id="PAGE_SCROLL"
         backgroundColor="#FFFFFFFF"
         >
@@ -277,5 +281,20 @@
         <state state_selected="true" backgroundColor="#00202020"/>
         <state state_hovered="true" backgroundColor="#C0404000"/>
     </style>
+
+    <style id="GROUP_BOX"
+        margins="2pt,4pt,2pt,2pt">
+        <drawable id="group_box_frame_up_left" value="group_box_frame_up_left_dark"/>
+        <drawable id="group_box_frame_up_right" value="group_box_frame_up_right_dark"/>
+        <drawable id="group_box_frame_bottom" value="group_box_frame_bottom_dark"/>
+    </style>
+
+    <style id="GROUP_BOX_CAPTION"
+        align="Left|VCenter"
+	textColor="#504840"
+        padding="1pt,1pt,1pt,1pt">
+    </style>
+    
+
 </theme>
 

views/standard_resources.list

@@ -51,6 +51,10 @@ res/group_box_frame_bottom.9.png
 res/group_box_frame_up_left.9.png
 res/group_box_frame_up_right.9.png
 res/slider_background.9.png
+res/group_box_frame_bottom_dark.9.png
+res/group_box_frame_up_left_dark.9.png
+res/group_box_frame_up_right_dark.9.png
+res/slider_background_dark.9.png
 res/i18n/std_en.ini
 res/i18n/std_ru.ini
 res/list_item_background.xml