com.allen_sauer.gwt.dnd.demo.client.DragStartSensitivityBehaviorPanel.java Source code

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Here is the source code for com.allen_sauer.gwt.dnd.demo.client.DragStartSensitivityBehaviorPanel.java

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/*
 * Copyright 2009 Fred Sauer
 * 
 * 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 com.allen_sauer.gwt.dnd.demo.client;

import com.google.gwt.event.dom.client.ChangeEvent;
import com.google.gwt.event.dom.client.ChangeHandler;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.TextBox;

import com.allen_sauer.gwt.dnd.client.DragController;

class DragStartSensitivityBehaviorPanel extends BehaviorPanel {

    private final DragController dragController;

    private TextBox textBox;

    public DragStartSensitivityBehaviorPanel(final DragController dragController) {
        super("Drag Sensitivity", "getBehaviorDragStartSensitivity() / setBehaviorDragStartSensitivity(int)");
        this.dragController = dragController;

        HorizontalPanel panel = new HorizontalPanel();
        panel.setSpacing(5);
        Label label = new Label("Number of Pixels");
        textBox = new TextBox();
        textBox.setWidth("3em");
        panel.add(label);
        panel.add(textBox);
        panel.setTitle("DragController#setBehaviorDragStartSensitivity(int)");
        add(panel);

        textBox.setText("" + dragController.getBehaviorDragStartSensitivity());

        textBox.addKeyUpHandler(new KeyUpHandler() {
            @Override
            public void onKeyUp(KeyUpEvent event) {
                fix();
            }
        });
        textBox.addClickHandler(new ClickHandler() {
            @Override
            public void onClick(ClickEvent event) {
                fix();
                textBox.selectAll();
            }
        });
        textBox.addChangeHandler(new ChangeHandler() {
            @Override
            public void onChange(ChangeEvent event) {
                fix();
            }
        });
    }

    private void fix() {
        try {
            dragController.setBehaviorDragStartSensitivity(Integer.parseInt(textBox.getText()));
        } catch (NumberFormatException ex) {
            // ignore
        }
    }
}