org.geowe.client.local.style.LabelStyleTab.java Source code

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Here is the source code for org.geowe.client.local.style.LabelStyleTab.java

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/*
 * #%L
 * GeoWE Project
 * %%
 * Copyright (C) 2015 - 2016 GeoWE.org
 * %%
 * This file is part of GeoWE.org.
 * 
 * GeoWE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * GeoWE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with GeoWE.  If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */
package org.geowe.client.local.style;

import org.geowe.client.local.messages.UIMessages;
import org.geowe.client.local.model.style.VectorStyleDef;
import org.geowe.client.local.ui.ColorPicker;
import org.geowe.client.local.ui.FeatureAttributeComboBox;
import org.geowe.client.local.ui.FontSizeComboBox;
import org.geowe.client.local.ui.KeyShortcutHandler;

import com.google.gwt.event.logical.shared.ValueChangeEvent;
import com.google.gwt.event.logical.shared.ValueChangeHandler;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.sencha.gxt.widget.core.client.button.TextButton;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer;
import com.sencha.gxt.widget.core.client.container.VerticalLayoutContainer.VerticalLayoutData;
import com.sencha.gxt.widget.core.client.event.FocusEvent;
import com.sencha.gxt.widget.core.client.event.FocusEvent.FocusHandler;
import com.sencha.gxt.widget.core.client.form.CheckBox;
import com.sencha.gxt.widget.core.client.form.FieldLabel;
import com.sencha.gxt.widget.core.client.form.TextField;

/**
 * Pestaa de configuracion de etiquetado de features, perteneciente al dialogo
 * de gestion de estilos.
 * 
 * @author Atanasio Muoz
 * @since 31/08/2016
 * @author rafa@geowe.org 
 * Se corrige error al quitar etiquetado issue #158
 */
public class LabelStyleTab extends StyleTab implements ColorPicker.SelectedColorChangedListener {

    private CheckBox enableLabeling;
    private FeatureAttributeComboBox attributeLabel;
    private FontSizeComboBox fontSize;
    private CheckBox boldFont;
    private TextField labelBackColor;
    private ColorPicker colorPicker;

    @Override
    protected void initializePanel() {
        String fieldWidth = "125px";

        attributeLabel = new FeatureAttributeComboBox(fieldWidth);
        attributeLabel.setEnabled(false);

        fontSize = new FontSizeComboBox(fieldWidth);
        fontSize.setEnabled(false);

        boldFont = new CheckBox();
        boldFont.setValue(false);
        boldFont.setEnabled(false);

        labelBackColor = new TextField();
        labelBackColor.setEnabled(false);
        labelBackColor.setWidth(fieldWidth);
        labelBackColor.addFocusHandler(new FocusHandler() {
            @Override
            public void onFocus(FocusEvent event) {
                colorPicker.slide(true);
            }
        });

        colorPicker = new ColorPicker();
        colorPicker.addSelectedColorChangedListener(this);
        colorPicker.setEnabled(false);

        enableLabeling = new CheckBox();
        enableLabeling.setBoxLabel(UIMessages.INSTANCE.enableLabelStyle());
        enableLabeling.setValue(false);
        enableLabeling.addValueChangeHandler(new ValueChangeHandler<Boolean>() {
            @Override
            public void onValueChange(ValueChangeEvent<Boolean> event) {
                attributeLabel.setEnabled(event.getValue());
                fontSize.setEnabled(event.getValue());
                boldFont.setEnabled(event.getValue());
                labelBackColor.setEnabled(event.getValue());
                colorPicker.slide(event.getValue());
                colorPicker.setEnabled(event.getValue());
            }
        });
        HorizontalPanel mainPanel = new HorizontalPanel();
        mainPanel.setSpacing(8);

        VerticalLayoutContainer attrStyleContainer = new VerticalLayoutContainer();
        attrStyleContainer.add(new FieldLabel(attributeLabel, UIMessages.INSTANCE.vlswLabelAttribute()),
                new VerticalLayoutData(-18, -1));
        attrStyleContainer.add(new FieldLabel(fontSize, UIMessages.INSTANCE.vlsFontSize()),
                new VerticalLayoutData(-18, -1));
        attrStyleContainer.add(new FieldLabel(boldFont, UIMessages.INSTANCE.vlsFontBold()),
                new VerticalLayoutData(-18, -1));
        attrStyleContainer.add(new FieldLabel(labelBackColor, UIMessages.INSTANCE.background()),
                new VerticalLayoutData(-18, -1));

        mainPanel.add(attrStyleContainer);
        mainPanel.add(colorPicker);

        panel.setSpacing(2);
        panel.add(enableLabeling);
        panel.add(mainPanel);
    }

    public Boolean isEnableLabeling() {
        return enableLabeling.getValue();
    }

    public String getAttributeLabel() {
        return attributeLabel.getValue() != null ? attributeLabel.getValue().toString() : null;
    }

    public Integer getFontSize() {
        return fontSize.getValue() != null ? fontSize.getValue() : null;
    }

    public Boolean isUseBoldLabel() {
        return boldFont.getValue();
    }

    public String getBackgroundColor() {
        return labelBackColor.getText();
    }

    @Override
    protected void updateStyleData(VectorStyleDef style) {
        attributeLabel.loadValues(selectedLayer);

        this.enableLabeling.setValue(style.getLabel().isEnabled(), true);

        if (style.getLabel().isEnabled()) {
            this.attributeLabel.setValue(style.getLabel().getAttribute());
            this.fontSize.setValue(style.getLabel().getFontSize());
            this.boldFont.setValue(style.getLabel().isBoldStyle());
            this.labelBackColor.setText(style.getLabel().getBackgroundColor());
        } else {
            this.attributeLabel.setValue(null);
        }
    }

    @Override
    protected void addKeyShortcut(TextButton button, int keyCode) {
        KeyShortcutHandler keyShortcut = new KeyShortcutHandler(button, keyCode);

        attributeLabel.addKeyDownHandler(keyShortcut);
        fontSize.addKeyDownHandler(keyShortcut);
        labelBackColor.addKeyDownHandler(keyShortcut);
    }

    @Override
    public void onSelectedColorChanged(String selectedColor) {
        labelBackColor.setText(selectedColor);
        colorPicker.slide(false);
    }
}