org.gwm.splice.client.desktop.DesktopManager.java Source code

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Here is the source code for org.gwm.splice.client.desktop.DesktopManager.java

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/*
 * Copyright (c) 2006/2007 Flipperwing Ltd. (http://www.flipperwing.com)
 *
 * 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.gwm.splice.client.desktop;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.gwm.splice.client.icon.IconManager;
import org.gwm.splice.client.logger.LogWindow;
import org.gwm.splice.client.logger.Logger;
import org.gwm.splice.client.logger.ILogger;
import org.gwm.splice.client.window.AbstractWindow;
import org.gwm.splice.client.window.IWindowManagerListener;
import org.gwm.splice.client.window.WindowManager;

import com.google.gwt.core.client.GWT;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.rpc.RemoteService;
import com.google.gwt.user.client.ui.RootPanel;
import com.google.gwt.user.client.ui.Widget;

public class DesktopManager implements IWindowManagerListener {

    private static DesktopManager instance;

    public static DesktopManager getInstance() {
        if (instance == null) {
            instance = new DesktopManager();
        }
        return instance;
    }

    //////////////////////////////////////////////////////////////////////////////////////////

    private IconManager iconManager;
    private WindowManager windowManager;
    private ILogger logger;
    private String iconPath = "images/icons";
    private String iconTheme = "crystalsvg";
    private String defaultIconExtension = ".png";
    private Map services = new HashMap();

    private int topMargin = 0;
    private int leftMargin = 0;
    private int rightMargin = 0;
    private int bottomMargin = 0;

    private DesktopManager() {
        windowManager = new WindowManager(this);
        windowManager.addWindowManagerListener(this);
        iconManager = new IconManager(this);
    }

    //////////////////////////////////////////////////////////////////////////////////////////

    public boolean canDrop(Widget widget) {

        RootPanel rp = RootPanel.get();

        int x = widget.getAbsoluteLeft();
        int y = widget.getAbsoluteTop();
        int h = widget.getOffsetHeight();
        int w = widget.getAbsoluteLeft();

        boolean overlapX = false;
        boolean overlapY = false;

        for (Iterator iter = rp.iterator(); iter.hasNext();) {
            Widget child = (Widget) iter.next();

            if (child == widget) {
                continue;
            }

            int cx = child.getAbsoluteLeft();
            int cy = child.getAbsoluteTop();
            int ch = child.getOffsetHeight();
            int cw = child.getOffsetWidth();

            if (x == cx || y == cy) {
                return false;
            }
            if (x > cx) {
                if (x <= (cx + cw)) {
                    overlapX = true;
                }
            } else if (x < cx) {
                if ((x + w) >= cx) {
                    overlapX = true;
                }
            }
            if (y > cy) {
                if (y <= (cy + ch)) {
                    overlapY = true;
                }
            } else if (y < cy) {
                if ((y + h) >= cy) {
                    overlapY = true;
                }
            }

            if (overlapX && overlapY) {
                return false;
            }
        }

        return true;
    }

    //////////////////////////////////////////////////////////////////////////////////////////

    public IconManager getIconManager() {
        return iconManager;
    }

    public WindowManager getWindowManager() {
        return windowManager;
    }

    //////////////////////////////////////////////////////////////////////////////////////////

    public void registerService(String name, RemoteService service) {
        services.put(name, service);
    }

    public void unregisterService(String name) {
        services.remove(name);
    }

    public void showLogWindow() {
        new LogWindow();
    }

    //////////////////////////////////////////////////////////////////////////////////////////

    public void windowAdded(AbstractWindow window) {
        // TODO Auto-generated method stub
    }

    public void windowRemoved(AbstractWindow window) {
        // TODO Auto-generated method stub

    }

    public ILogger getLogger() {
        if (logger == null) {
            logger = Logger.getInstance();
        }
        return logger;
    }

    public void setLogger(ILogger logger) {
        this.logger = logger;
    }

    public String getIconTheme() {
        return iconTheme;
    }

    public void setIconTheme(String iconTheme) {
        this.iconTheme = iconTheme;
    }

    public String getIconPath() {
        return iconPath;
    }

    public void setIconPath(String iconPath) {
        this.iconPath = iconPath;
    }

    public String getDefaultIconExtension() {
        return defaultIconExtension;
    }

    public void setDefaultIconExtension(String defaultIconExtension) {
        this.defaultIconExtension = defaultIconExtension;
    }

    //////////////////////////////////////////////////////////////////////////////////////////

    public String getSmallIconPath() {
        return iconPath + "/" + iconTheme + "/16x16";
    }

    public String getLargeIconPath() {
        return iconPath + "/" + iconTheme + "/32x32";
    }

    public String getSmallIconUrl(String name) {
        return GWT.getModuleBaseURL() + "/" + getSmallIconPath() + "/" + name + defaultIconExtension;
    }

    public String getLargeIconUrl(String name) {
        return GWT.getModuleBaseURL() + "/" + getLargeIconPath() + "/" + name + defaultIconExtension;
    }

    /**
     * @return the bottomMargin
     */
    public int getBottomMargin() {
        return bottomMargin;
    }

    /**
     * @param bottomMargin the bottomMargin to set
     */
    public void setBottomMargin(int bottomMargin) {
        this.bottomMargin = bottomMargin;
    }

    /**
     * @return the rightMargin
     */
    public int getRightMargin() {
        return rightMargin;
    }

    /**
     * @param rightMargin the rightMargin to set
     */
    public void setRightMargin(int rightMargin) {
        this.rightMargin = rightMargin;
    }

    /**
     * @return the leftMargin
     */
    public int getLeftMargin() {
        return leftMargin;
    }

    /**
     * @param leftMargin the leftMargin to set
     */
    public void setLeftMargin(int leftMargin) {
        this.leftMargin = leftMargin;
    }

    /**
     * @return the topMargin
     */
    public int getTopMargin() {
        return topMargin;
    }

    /**
     * @param topMargin the topMargin to set
     */
    public void setTopMargin(int topMargin) {
        this.topMargin = topMargin;
    }
}