org.utgenome.gwt.widget.client.HorizontalTrackFrame.java Source code

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Here is the source code for org.utgenome.gwt.widget.client.HorizontalTrackFrame.java

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/*--------------------------------------------------------------------------
 *  Copyright 2008 utgenome.org
 *
 *  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.
 *--------------------------------------------------------------------------*/
//--------------------------------------
// utgb-widget Project
//
// HorizontalTrackPanel.java
// Since: Apr 24, 2008
//
// $URL$ 
// $Author$
//--------------------------------------
package org.utgenome.gwt.widget.client;

import org.utgenome.gwt.widget.client.impl.TrackPanelBase;

import com.google.gwt.user.client.ui.FlexTable;
import com.google.gwt.user.client.ui.FocusPanel;
import com.google.gwt.user.client.ui.HorizontalPanel;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.ScrollPanel;
import com.google.gwt.user.client.ui.SimplePanel;
import com.google.gwt.user.client.ui.VerticalPanel;
import com.google.gwt.user.client.ui.Widget;

/**
 * Track panel that has the horizontal layout.
 * 
 * @author leo
 * 
 */
public class HorizontalTrackFrame extends TrackPanelBase {

    // layout panels
    private final FlexTable layoutTable = new FlexTable();
    private FocusPanel labelFrame = new FocusPanel();
    private SimplePanel trackInfoPanel = new SimplePanel();
    private String trackTitle;
    private FrameBorder trackInfoFrame = new FrameBorder(2, FrameBorder.WEST | FrameBorder.SOUTH);
    private Label trackLabel = new Label();
    private int buttonVisibilityFlag = ~0; // show all buttons in default

    private ScrollPanel scrollPanel = new ScrollPanel();

    public HorizontalTrackFrame() {

        enableResizeWidth(false);

        drawWidget();
        initWidget(layoutTable);
    }

    public Widget getDraggableWidget() {
        return labelFrame;
    }

    protected void drawWidget() {

        setTrackTitle("Track");

        Style.fullWidth(layoutTable);
        layoutTable.setCellPadding(0);
        layoutTable.setCellSpacing(0);

        // label
        Style.fontSize(trackLabel, 11);
        Style.fontFamily(trackLabel, "Arial, Tahoma, Verdana");
        Style.set(trackLabel, "color", "white");
        Style.margin(trackLabel, Style.LEFT, 2);
        Style.verticalAlign(trackLabel, "middle");
        Style.overflowHidden(trackLabel);

        // label frame
        labelFrame.add(trackLabel);
        Style.cursor(labelFrame, Style.CURSOR_MOVE);

        // title bar (label + icon)
        HorizontalPanel hp = new HorizontalPanel();
        Style.fullWidth(hp);
        hp.add(labelFrame);
        hp.setCellWidth(labelFrame, "100%");
        hp.setHorizontalAlignment(VerticalPanel.ALIGN_RIGHT);
        hp.add(getIconSetPanel());

        // track info panel
        Style.fullSize(trackInfoPanel);
        Style.backgroundImage(trackInfoPanel, "theme/default/track-base.png");
        Style.backgroundColor(trackInfoPanel, "00a7bf");
        trackInfoPanel.add(hp);

        // track info border
        trackInfoFrame.setWidget(trackInfoPanel);
        trackInfoFrame.setSize("180px", "100%");

        // layout (track info | track content | resize bar)
        layoutTable.setWidget(0, 0, trackInfoFrame);

        // scroll panel
        layoutTable.setWidget(0, 1, scrollPanel);
        layoutTable.getCellFormatter().setHeight(0, 1, "100%");
        layoutTable.getCellFormatter().setWidth(0, 1, "100%");

        // resize bar
        VerticalPanel resizeBarPanel = new VerticalPanel();
        Style.fullSize(resizeBarPanel);
        Style.backgroundColor(resizeBarPanel, "D0F0F0");
        resizeBarPanel.setVerticalAlignment(VerticalPanel.ALIGN_BOTTOM);
        resizeBarPanel.add(getResizeButton());

        // resize bar frame
        FrameBorder resizeBarBorder = new FrameBorder(2, FrameBorder.EAST | FrameBorder.SOUTH);
        resizeBarBorder.setSize("16px", "100%");
        resizeBarBorder.setWidget(resizeBarPanel);
        layoutTable.getCellFormatter().setHeight(0, 2, "100%");
        layoutTable.getCellFormatter().setWidth(0, 2, "100%");
        layoutTable.setWidget(0, 2, resizeBarBorder);

        // Style.hideHorizontalScrollBar(scrollPanel);
    }

    @Override
    public void setHeight(int pixelHeight) {
        if (pixelHeight >= 20) {
            layoutTable.setHeight(pixelHeight + "px");
            scrollPanel.setHeight(pixelHeight + "px");
        }
    }

    @Override
    public void setWidth(int pixelWidth) {
        if (pixelWidth >= 200) {
            layoutTable.setWidth(pixelWidth + "px");
            scrollPanel.setWidth(pixelWidth - 200 + "px");
        }
    }

    /**
     * Checks the visibility of the button
     * 
     * @param buttonType
     * @return
     */
    public boolean isVisible(int buttonType) {
        return (buttonVisibilityFlag & buttonType) != 0;
    }

    public String getTrackTitle() {
        return trackTitle;
    }

    public void setTrackTitle(String title) {
        this.trackTitle = title;
        if (trackTitle.length() > 20)
            trackLabel.setText(trackTitle.substring(0, 20) + "...");
        else
            trackLabel.setText(trackTitle);

        trackLabel.setTitle(trackTitle);
    }

    public void setTrackContent(Widget w) {
        scrollPanel.setWidget(w);
    }

}