resource cleanup fixed

examples/example1/main.d

@@ -40,6 +40,8 @@ extern (C) int UIAppMain(string[] args) {
 
     // create window
     Window window = Platform.instance().createWindow("My Window", null);
+	
+	static if (false) {
 		LinearLayout layout = new LinearLayout();
 		layout.addChild((new TextWidget()).textColor(0x00802000).text("Text widget 0"));
 		layout.addChild((new TextWidget()).textColor(0x40FF4000).text("Text widget"));
@@ -79,6 +81,9 @@ extern (C) int UIAppMain(string[] args) {
 		layout.layoutHeight(FILL_PARENT).layoutWidth(FILL_PARENT);
 
 	    window.mainWidget = layout;
+	} else {
+	    window.mainWidget = (new Button()).text("sample button");
+	}
     window.show();
     window.windowCaption = "New Window Caption";
 

src/dlangui/graphics/drawbuf.d

@@ -699,11 +699,17 @@ class SolidFillDrawable : Drawable {
 class ImageDrawable : Drawable {
     protected DrawBufRef _image;
     protected bool _tiled;
+	private int _instanceCount;
     this(ref DrawBufRef image, bool tiled = false, bool ninePatch = false) {
         _image = image;
         _tiled = tiled;
         if (ninePatch)
             _image.detectNinePatch();
+		Log.d("Created ImageDrawable, count=", ++_instanceCount);
+    }
+	~this() {
+		_image.clear();
+		Log.d("Destroyed ImageDrawable, count=", --_instanceCount);
 	}
     @property override int width() { 
         if (_image.isNull)

src/dlangui/graphics/ftfonts.d

@@ -475,7 +475,7 @@ class FreeTypeFontManager : FontManager {
         return best;
     }
 
-	private FontList _activeFonts;
+	//private FontList _activeFonts;
 
     private static FontRef _nullFontRef;
 
@@ -490,13 +490,14 @@ class FreeTypeFontManager : FontManager {
         }
     }
     ~this() {
-		Log.d("FreeTypeFontManager ~this() active fonts: ", _activeFonts.length);
-		_activeFonts.clear();
+		Log.d("FreeTypeFontManager ~this()");
+		//_activeFonts.clear();
 		foreach(ref FontFileItem item; _fontFiles) {
 			destroy(item);
 			item = null;
 		}
 		_fontFiles.length = 0;
+		Log.d("Destroyed all fonts. Freeing library.");
         // uninit library
         if (_library)
             FT_Done_FreeType(_library);

src/dlangui/graphics/images.d

@@ -72,6 +72,11 @@ class ImageCache {
     }
     ~this() {
         Log.i("Destroying ImageCache");
+		foreach (ref item; _map) {
+			destroy(item);
+            item = null;
+		}
+		_map.clear();
     }
 }
 
@@ -108,14 +113,17 @@ class DrawableCache {
         bool _error;
         bool _used;
         DrawableRef _drawable;
+		private int _instanceCount;
         this(string id, string filename, bool tiled) {
             _id = id;
             _filename = filename;
             _tiled = tiled;
             _error = filename is null;
+			Log.d("Created DrawableCacheItem, count=", ++_instanceCount);
         }
 		~this() {
 			_drawable.clear();
+			Log.d("Destroyed DrawableCacheItem, count=", --_instanceCount);
 		}
         /// remove from memory, will cause reload on next access
         void compact() {
@@ -213,6 +221,11 @@ class DrawableCache {
     }
     ~this() {
         Log.i("Destroying DrawableCache");
+		foreach (ref item; _idToDrawableMap) {
+			destroy(item);
+			item = null;
+		}
+		_idToDrawableMap.clear();
     }
 }
 

src/dlangui/widgets/styles.d

@@ -472,6 +472,11 @@ class Theme : Style {
 	
 	~this() {
 		Log.d("Theme destructor");
+		foreach(ref Style item; _byId) {
+			destroy(item);
+			item = null;
+		}
+		_byId.clear();
 	}
 
 	/// create wrapper style which will have currentTheme.get(id) as parent instead of fixed parent - to modify some base style properties in widget
@@ -520,6 +525,10 @@ class Theme : Style {
 			return _byId[id];
 		return this;
 	}
+	
+	void dumpStats() {
+		Log.d("Theme ", _id, ": children:", _children.length, ", substates:", _substates.length, ", mapsize:", _byId.length);
+	}
 }
 
 /// to access current theme
@@ -542,6 +551,7 @@ Theme createDefaultTheme() {
     button.createState(State.Disabled, State.Disabled).backgroundImageId("btn_default_small_normal_disable");
     button.createState(State.Pressed, State.Pressed).backgroundImageId("btn_default_small_pressed");
     button.createState(State.Focused, State.Focused).backgroundImageId("btn_default_small_selected");
+	res.dumpStats();
 	return res;
 }