LienzoDefinitionSetFlatPaletteImpl.java

/*
 * Copyright 2016 Red Hat, Inc. and/or its affiliates.
 *
 * 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.kie.workbench.common.stunner.client.lienzo.components.palette.impl;

import java.util.LinkedList;
import java.util.List;
import javax.annotation.PostConstruct;
import javax.enterprise.context.Dependent;
import javax.inject.Inject;

import org.kie.workbench.common.stunner.client.lienzo.components.palette.AbstractLienzoGlyphItemsPalette;
import org.kie.workbench.common.stunner.client.lienzo.components.palette.LienzoDefinitionSetFlatPalette;
import org.kie.workbench.common.stunner.client.lienzo.components.palette.view.LienzoPaletteViewImpl;
import org.kie.workbench.common.stunner.client.lienzo.components.palette.view.element.LienzoPaletteElementView;
import org.kie.workbench.common.stunner.client.lienzo.components.palette.view.element.LienzoSeparatorPaletteElementView;
import org.kie.workbench.common.stunner.client.lienzo.components.palette.view.element.LienzoSeparatorPaletteElementViewImpl;
import org.kie.workbench.common.stunner.client.lienzo.components.palette.view.element.LienzoTextPaletteElementView;
import org.kie.workbench.common.stunner.client.lienzo.components.palette.view.element.LienzoTextPaletteElementViewImpl;
import org.kie.workbench.common.stunner.core.client.api.ShapeManager;
import org.kie.workbench.common.stunner.core.client.components.glyph.DefinitionGlyphTooltip;
import org.kie.workbench.common.stunner.core.client.components.palette.model.GlyphPaletteItem;
import org.kie.workbench.common.stunner.core.client.components.palette.model.HasPaletteItems;
import org.kie.workbench.common.stunner.core.client.components.palette.model.definition.DefinitionPaletteCategory;
import org.kie.workbench.common.stunner.core.client.components.palette.model.definition.DefinitionPaletteItem;
import org.kie.workbench.common.stunner.core.client.components.palette.model.definition.DefinitionSetPalette;
import org.kie.workbench.common.stunner.core.client.components.palette.view.PaletteGrid;
import org.kie.workbench.common.stunner.core.client.shape.factory.ShapeFactory;

@Dependent
public class LienzoDefinitionSetFlatPaletteImpl
        extends AbstractLienzoGlyphItemsPalette<HasPaletteItems<? extends GlyphPaletteItem>, LienzoPaletteViewImpl>
        implements LienzoDefinitionSetFlatPalette {

    private String lastCategory = null;
    private final List<GlyphPaletteItem> items = new LinkedList<>();

    protected LienzoDefinitionSetFlatPaletteImpl() {
        this(null,
             null,
             null);
    }

    @Inject
    public LienzoDefinitionSetFlatPaletteImpl(final ShapeManager shapeManager,
                                              final LienzoPaletteViewImpl view,
                                              final DefinitionGlyphTooltip definitionGlyphTooltip) {
        super(shapeManager,
              definitionGlyphTooltip,
              view);
    }

    @PostConstruct
    public void init() {
        super.doInit();
    }

    @Override
    protected void doBind() {
        items.clear();
        final DefinitionSetPalette definitionSetPalette = (DefinitionSetPalette) paletteDefinition;
        final List<DefinitionPaletteCategory> categories = definitionSetPalette.getItems();
        if (null != categories && !categories.isEmpty()) {
            final PaletteGrid grid = getGrid();
            for (final DefinitionPaletteCategory category : categories) {
                final List<DefinitionPaletteItem> categoryItems = category.getItems();
                if (null != categoryItems && !categoryItems.isEmpty()) {
                    for (final GlyphPaletteItem item : categoryItems) {
                        addGlyphItemIntoView(item,
                                             grid);
                        items.add(item);
                    }
                    // TODO: addSeparatorIntoView( grid ); - Too much height as using static grid size.
                }
            }
        }
    }

    @Override
    protected ShapeFactory getShapeFactory() {
        final ShapeFactory f = super.getShapeFactory();
        if (null == f) {
            final DefinitionSetPalette definitionSetPalette = (DefinitionSetPalette) paletteDefinition;
            return shapeManager.getDefaultShapeSet(definitionSetPalette.getDefinitionSetId()).getShapeFactory();
        }
        return f;
    }

    @Override
    public List<GlyphPaletteItem> getItems() {
        return items;
    }

    protected void addTextIntoView(final String text,
                                   final PaletteGrid grid) {
        final LienzoTextPaletteElementView separatorPaletteTextView = new LienzoTextPaletteElementViewImpl(text,
                                                                                                           "Verdana",
                                                                                                           10);
        addElementIntoView(separatorPaletteTextView);
    }

    protected void addSeparatorIntoView(final PaletteGrid grid) {
        final LienzoSeparatorPaletteElementView separatorPaletteElementView = new LienzoSeparatorPaletteElementViewImpl(grid.getIconSize(),
                                                                                                                        grid.getIconSize());
        addElementIntoView(separatorPaletteElementView);
    }

    protected void addElementIntoView(final LienzoPaletteElementView paletteElementView) {
        itemViews.add(paletteElementView);
        view.add(paletteElementView);
    }
}