Example usage for com.badlogic.gdx.scenes.scene2d.ui Skin optional

Introduction

In this page you can find the example usage for com.badlogic.gdx.scenes.scene2d.ui Skin optional.

Prototype

public <T> T optional(String name, Class<T> type) 

Source Link

Usage

From source file:org.ege.widget.StyleAtlas.java

License:Apache License

protected Json getJsonLoader(final FileHandle skinFile) {
    final Skin skin = this;

    final Json json = new Json() {
        public <T> T readValue(Class<T> type, Class elementType, Object jsonData) {
            // If the JSON is a string but the type is not, look up the actual value by name.
            if (jsonData instanceof String && !CharSequence.class.isAssignableFrom(type))
                return get((String) jsonData, type);
            return super.readValue(type, elementType, jsonData);
        }//from   w w w.j a  v  a 2  s.  c  o m
    };

    json.setTypeName(null);
    json.setUsePrototypes(false);

    /*   ------------------------------------------------   */

    json.setSerializer(Skin.class, new ReadOnlySerializer<Skin>() {
        public Skin read(Json json, Object jsonData, Class ignored) {
            ObjectMap<String, ObjectMap> typeToValueMap = (ObjectMap) jsonData;
            for (Entry<String, ObjectMap> typeEntry : typeToValueMap.entries()) {
                String className = typeEntry.key;
                ObjectMap<String, ObjectMap> valueMap = (ObjectMap) typeEntry.value;
                try {
                    readNamedObjects(json, Class.forName(className), valueMap);
                } catch (ClassNotFoundException ex) {
                    throw new SerializationException(ex);
                }
            }
            return skin;
        }

        private void readNamedObjects(Json json, Class type, ObjectMap<String, ObjectMap> valueMap) {
            Class addType = type == TintedDrawable.class ? Drawable.class : type;
            for (Entry<String, ObjectMap> valueEntry : valueMap.entries()) {
                String name = valueEntry.key;
                Object object = json.readValue(type, valueEntry.value);
                if (object == null)
                    continue;
                try {
                    add(name, object, addType);
                } catch (Exception ex) {
                    throw new SerializationException(
                            "Error reading " + type.getSimpleName() + ": " + valueEntry.key, ex);
                }
            }
        }
    });

    /*   ------------------------------------------------   */

    json.setSerializer(BitmapFont.class, new ReadOnlySerializer<BitmapFont>() {
        public BitmapFont read(Json json, Object jsonData, Class type) {
            String path = json.readValue("file", String.class, jsonData);

            FileHandle fontFile = skinFile.parent().child(path);
            if (!fontFile.exists())
                fontFile = Gdx.files.internal(path);
            if (!fontFile.exists())
                throw new SerializationException("Font file not found: " + fontFile);

            // Use a region with the same name as the font, else use a PNG file in the same directory as the FNT file.
            String regionName = fontFile.nameWithoutExtension();
            try {
                TextureRegion region = skin.optional(regionName, TextureRegion.class);
                if (region != null)
                    return new BitmapFont(fontFile, region, false);
                else {
                    FileHandle imageFile = fontFile.parent().child(regionName + ".png");
                    if (imageFile.exists())
                        return new BitmapFont(fontFile, imageFile, false);
                    else
                        return new BitmapFont(fontFile, false);
                }
            } catch (RuntimeException ex) {
                throw new SerializationException("Error loading bitmap font: " + fontFile, ex);
            }
        }
    });

    /*   ------------------------------------------------   */

    json.setSerializer(Color.class, new ReadOnlySerializer<Color>() {
        public Color read(Json json, Object jsonData, Class type) {
            if (jsonData instanceof String)
                return get((String) jsonData, Color.class);
            ObjectMap map = (ObjectMap) jsonData;
            float r = json.readValue("r", float.class, 0f, jsonData);
            float g = json.readValue("g", float.class, 0f, jsonData);
            float b = json.readValue("b", float.class, 0f, jsonData);
            float a = json.readValue("a", float.class, 1f, jsonData);
            return new Color(r, g, b, a);
        }
    });

    /*   ------------------------------------------------   */

    json.setSerializer(TintedDrawable.class, new ReadOnlySerializer() {
        public Object read(Json json, Object jsonData, Class type) {
            String name = json.readValue("name", String.class, jsonData);
            Color color = json.readValue("color", Color.class, jsonData);
            return newDrawable(name, color);
        }
    });

    /*   ------------------------------------------------   */

    //      json.setSerializer(Orientation.class, new Serializer<Orientation>() {
    //
    //         @Override
    //         public void write (Json json, Orientation object, Class knownType) {
    //            json.writeObjectStart();
    //            switch (object) {
    //               case HORIZONTAL:
    //                  json.writeValue("orientation", "HORIZONTAL");
    //                  break;
    //               case VERTICAL:
    //                  json.writeValue("orientation", "VERTICAL");
    //                  break;
    //               case LANDSCAPE:
    //                  json.writeValue("orientation", "LANDSCAPE");
    //                  break;
    //               case PORTRAIT:
    //                  json.writeValue("orientation", "PORTRAIT");
    //                  break;
    //            }
    //            json.writeObjectEnd();
    //         }
    //
    //         @Override
    //         public Orientation read (Json json, Object jsonData, Class type) {
    //            String ori = (String)jsonData;
    //            ori = ori.toLowerCase();
    //            if(ori.equals("landscape"))
    //               return Orientation.LANDSCAPE;
    //            else if(ori.equals("portrait"))
    //               return Orientation.PORTRAIT;
    //            else if(ori.equals("vertical"))
    //               return Orientation.VERTICAL;
    //            return Orientation.HORIZONTAL;
    //         }
    //         
    //      });

    /*   ------------------------------------------------   */

    json.setSerializer(Attributes.class, new ReadOnlySerializer<Attributes>() {
        @Override
        public Attributes read(Json json, Object jsonData, Class type) {
            float startX = json.readValue("startX", float.class, (float) 0, jsonData);
            float startY = json.readValue("startY", float.class, (float) 0, jsonData);
            float dstX = json.readValue("x", float.class, jsonData);
            float dstY = json.readValue("y", float.class, jsonData);
            float width = json.readValue("width", float.class, jsonData);
            float height = json.readValue("height", float.class, jsonData);
            Attributes attr = new Attributes();
            attr.startX = startX;
            attr.startY = startY;
            attr.x = dstX;
            attr.y = dstY;
            attr.width = width;
            attr.height = height;
            return attr;
        }
    });

    /*   ------------------------------------------------   */

    json.setSerializer(ScalingSet.class, new ReadOnlySerializer<ScalingSet>() {
        @Override
        public ScalingSet read(Json json, Object jsonData, Class type) {
            float layoutx = json.readValue("layoutx", float.class, jsonData);
            float layouty = json.readValue("layouty", float.class, jsonData);
            float layoutwidth = json.readValue("layoutwidth", float.class, jsonData);
            float layoutheight = json.readValue("layoutheight", float.class, jsonData);
            float whratio = json.readValue("whratio", float.class, jsonData);
            float hwratio = json.readValue("hwratio", float.class, jsonData);
            return new ScalingSet().set(layoutx, layouty, layoutwidth, layoutheight, whratio, hwratio);
        }
    });

    /*   ------------------------------------------------   */

    json.setSerializer(Vector2.class, new ReadOnlySerializer<Vector2>() {
        @Override
        public Vector2 read(Json json, Object jsonData, Class type) {
            return new Vector2(json.readValue("x", float.class, jsonData),
                    json.readValue("y", float.class, jsonData));
        }
    });
    return json;
}

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From source file:stu.tnt.gdx.widget.StyleAtlas.java

License:Apache License

protected Json getJsonLoader(final FileHandle skinFile) {
    final Skin skin = this;

    final Json json = new Json() {
        public <T> T readValue(Class<T> type, Class elementType, JsonValue jsonData) {
            // If the JSON is a string but the type is not, look up the
            // actual value by name.
            if (jsonData.isString() && !ClassReflection.isAssignableFrom(CharSequence.class, type))
                return get(jsonData.asString(), type);
            return super.readValue(type, elementType, jsonData);
        }/*from ww w. j a va 2s .c o  m*/
    };
    json.setTypeName(null);
    json.setUsePrototypes(false);

    /* ------------------------------------------------ */

    json.setSerializer(Skin.class, new ReadOnlySerializer<Skin>() {
        public Skin read(Json json, JsonValue typeToValueMap, Class ignored) {
            for (JsonValue valueMap = typeToValueMap.child(); valueMap != null; valueMap = valueMap.next()) {
                try {
                    readNamedObjects(json, ClassReflection.forName(valueMap.name()), valueMap);
                } catch (ReflectionException ex) {
                    throw new SerializationException(ex);
                }
            }
            return skin;
        }

        private void readNamedObjects(Json json, Class type, JsonValue valueMap) {
            Class addType = type == TintedDrawable.class ? Drawable.class : type;
            for (JsonValue valueEntry = valueMap.child(); valueEntry != null; valueEntry = valueEntry.next()) {
                Object object = json.readValue(type, valueEntry);
                if (object == null)
                    continue;
                try {
                    add(valueEntry.name(), object, addType);
                } catch (Exception ex) {
                    throw new SerializationException(
                            "Error reading " + ClassReflection.getSimpleName(type) + ": " + valueEntry.name(),
                            ex);
                }
            }
        }
    });

    json.setSerializer(BitmapFont.class, new ReadOnlySerializer<BitmapFont>() {
        public BitmapFont read(Json json, JsonValue jsonData, Class type) {
            String path = json.readValue("file", String.class, jsonData);

            FileHandle fontFile = skinFile.parent().child(path);
            if (!fontFile.exists())
                fontFile = Gdx.files.internal(path);
            if (!fontFile.exists())
                throw new SerializationException("Font file not found: " + fontFile);

            // Use a region with the same name as the font, else use
            // a PNG file in the same directory as the FNT file.
            String regionName = fontFile.nameWithoutExtension();
            try {
                TextureRegion region = skin.optional(regionName, TextureRegion.class);
                if (region != null)
                    return new BitmapFont(fontFile, region, false);
                else {
                    FileHandle imageFile = fontFile.parent().child(regionName + ".png");
                    if (imageFile.exists())
                        return new BitmapFont(fontFile, imageFile, false);
                    else
                        return new BitmapFont(fontFile, false);
                }
            } catch (RuntimeException ex) {
                throw new SerializationException("Error loading bitmap font: " + fontFile, ex);
            }
        }
    });

    json.setSerializer(Color.class, new ReadOnlySerializer<Color>() {
        public Color read(Json json, JsonValue jsonData, Class type) {
            if (jsonData.isString())
                return get(jsonData.asString(), Color.class);
            String hex = json.readValue("hex", String.class, (String) null, jsonData);
            if (hex != null)
                return Color.valueOf(hex);
            float r = json.readValue("r", float.class, 0f, jsonData);
            float g = json.readValue("g", float.class, 0f, jsonData);
            float b = json.readValue("b", float.class, 0f, jsonData);
            float a = json.readValue("a", float.class, 1f, jsonData);
            return new Color(r, g, b, a);
        }
    });

    json.setSerializer(TintedDrawable.class, new ReadOnlySerializer() {
        public Object read(Json json, JsonValue jsonData, Class type) {
            String name = json.readValue("name", String.class, jsonData);
            Color color = json.readValue("color", Color.class, jsonData);
            return newDrawable(name, color);
        }
    });

    /* ------------------------------------------------ */

    json.setSerializer(Attributes.class, new ReadOnlySerializer<Attributes>() {
        @Override
        public Attributes read(Json json, JsonValue jsonData, Class type) {
            float startX = json.readValue("startX", float.class, (float) 0, jsonData);
            float startY = json.readValue("startY", float.class, (float) 0, jsonData);
            float dstX = json.readValue("x", float.class, jsonData);
            float dstY = json.readValue("y", float.class, jsonData);
            float width = json.readValue("width", float.class, jsonData);
            float height = json.readValue("height", float.class, jsonData);
            Attributes attr = new Attributes();
            attr.startX = startX;
            attr.startY = startY;
            attr.x = dstX;
            attr.y = dstY;
            attr.width = width;
            attr.height = height;
            return attr;
        }
    });

    /* ------------------------------------------------ */

    json.setSerializer(ScalingSet.class, new ReadOnlySerializer<ScalingSet>() {
        @Override
        public ScalingSet read(Json json, JsonValue jsonData, Class type) {
            float layoutx = json.readValue("layoutx", float.class, jsonData);
            float layouty = json.readValue("layouty", float.class, jsonData);
            float layoutwidth = json.readValue("layoutwidth", float.class, jsonData);
            float layoutheight = json.readValue("layoutheight", float.class, jsonData);
            float whratio = json.readValue("whratio", float.class, jsonData);
            float hwratio = json.readValue("hwratio", float.class, jsonData);
            return new ScalingSet().set(layoutx, layouty, layoutwidth, layoutheight, whratio, hwratio);
        }
    });

    /* ------------------------------------------------ */

    json.setSerializer(Vector2.class, new ReadOnlySerializer<Vector2>() {
        @Override
        public Vector2 read(Json json, JsonValue jsonData, Class type) {
            return new Vector2(json.readValue("x", float.class, jsonData),
                    json.readValue("y", float.class, jsonData));
        }
    });
    return json;
}

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