FixedTextFactory.java

/*
 * Copyright 2015 JBoss, by Red Hat, Inc
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.uberfire.ext.wires.core.scratchpad.client.factories.fixed;

import javax.enterprise.context.ApplicationScoped;

import com.ait.lienzo.client.core.shape.Layer;
import com.ait.lienzo.client.core.shape.Text;
import com.ait.lienzo.client.core.types.TextMetrics;
import com.ait.lienzo.client.widget.LienzoPanel;
import com.ait.lienzo.shared.core.types.TextAlign;
import com.ait.lienzo.shared.core.types.TextBaseLine;
import org.uberfire.ext.wires.core.api.factories.FactoryHelper;
import org.uberfire.ext.wires.core.api.factories.categories.Category;
import org.uberfire.ext.wires.core.api.shapes.WiresBaseShape;
import org.uberfire.ext.wires.core.client.factories.AbstractBaseFactory;
import org.uberfire.ext.wires.core.client.factories.categories.FixedShapeCategory;
import org.uberfire.ext.wires.core.client.util.ShapesUtils;
import org.uberfire.ext.wires.core.scratchpad.client.shapes.fixed.WiresFixedText;

@ApplicationScoped
public class FixedTextFactory extends AbstractBaseFactory<Text> {

    private static final String DESCRIPTION = "Text";

    private static final int FONT_POINT = 30;

    private final double TEXT_WIDTH;
    private final double TEXT_HEIGHT;

    public FixedTextFactory() {
        final Text text = makeShape();
        final LienzoPanel panel = new LienzoPanel(100,
                                                  100);
        final Layer layer = new Layer();
        panel.add(layer);
        final TextMetrics tm = text.measure(layer.getContext());
        TEXT_WIDTH = tm.getWidth();
        TEXT_HEIGHT = tm.getHeight();
    }

    @Override
    public String getShapeDescription() {
        return DESCRIPTION;
    }

    @Override
    public Category getCategory() {
        return FixedShapeCategory.CATEGORY;
    }

    @Override
    public WiresBaseShape getShape(final FactoryHelper helper) {
        return new WiresFixedText(makeShape());
    }

    @Override
    public boolean builds(final WiresBaseShape shapeType) {
        return shapeType instanceof WiresFixedText;
    }

    @Override
    protected Text makeShape() {
        final Text text = new Text("T",
                                   "normal",
                                   FONT_POINT);
        text.setStrokeColor(ShapesUtils.RGB_STROKE_TEXT)
                .setFillColor(ShapesUtils.RGB_FILL_TEXT)
                .setTextBaseLine(TextBaseLine.MIDDLE)
                .setTextAlign(TextAlign.CENTER)
                .setDraggable(false);
        return text;
    }

    @Override
    protected double getWidth() {
        return Math.round(TEXT_WIDTH);
    }

    @Override
    protected double getHeight() {
        return Math.round(TEXT_HEIGHT);
    }
}