showcasepanel.java

extjs + mysql + java

package com.gwtext.sample.charts.client;

import com.google.gwt.i18n.client.DateTimeFormat;
import com.google.gwt.user.client.ui.Frame;
import com.gwtext.client.core.*;
import com.gwtext.client.data.*;
import com.gwtext.client.util.Format;
import com.gwtext.client.widgets.*;
import com.gwtext.client.widgets.event.ButtonListenerAdapter;
import com.gwtext.client.widgets.event.PanelListenerAdapter;
import com.gwtext.client.widgets.event.WindowListenerAdapter;
import com.gwtext.client.widgets.event.ContainerListenerAdapter;
import com.gwtext.client.widgets.grid.*;
import com.gwtext.client.widgets.layout.BorderLayout;
import com.gwtext.client.widgets.layout.BorderLayoutData;
import com.gwtext.client.widgets.layout.FitLayout;
import com.gwtext.client.widgets.layout.VerticalLayout;

import java.util.Date;

public abstract class ShowcasePanel extends Panel {

    private Window sourceWindow = null;
    private String sourceIconCls = "source-icon";
    private ToolbarButton sourceButton;
    private Toolbar toolbar;

    protected static final String EVENT = "event";
    protected static final String MESSAGE = "message";

    private RecordDef recordDef;
    private Store store;

    protected Panel panel;

    protected ShowcasePanel() {
        setTitle(getTitle());
        setClosable(true);
        setTopToolbar(new Toolbar());
        setPaddings(20);
        setLayout(new FitLayout());
        setBorder(false);
        setAutoScroll(true);
        addListener(new PanelListenerAdapter() {
            public void onActivate(Panel panel) {
                ShowcasePanel.this.onActivate();
            }
        });

	}


	protected void onActivate() {
        Panel viewPanel = getViewPanel();
        if (viewPanel instanceof Window) {
            ((Window) viewPanel).show();
        }
    }

    protected void afterRender() {

        ButtonListenerAdapter listener = new ButtonListenerAdapter() {
            public void onClick(Button button, EventObject e) {
                Window window = getSourceWindow();
                window.show(sourceButton.getId());
            }
        };

        sourceButton = new ToolbarButton("View Source", listener);
        sourceButton.setIconCls(sourceIconCls);

        if (getSourceUrl() == null) {
            sourceButton.setDisabled(true);
        }
        toolbar = getTopToolbar();

        toolbar.addFill();
        toolbar.addButton(sourceButton);

        addViewPanel();
    }

    private void addViewPanel() {
        Panel mainPanel = new Panel();
        mainPanel.setBorder(false);
        //mainPanel.setLayout(new BorderLayout());
        mainPanel.setLayout(new BorderLayout());

        Panel viewPanel = getViewPanel();
        if (viewPanel instanceof Window) {
            viewPanel.show();
            viewPanel = new Panel();
        }
        viewPanel.setAutoScroll(true);
        viewPanel.setBorder(false);

        BorderLayoutData centerLayoutData = new BorderLayoutData(RegionPosition.CENTER);
        //centerLayoutData.setMargins(new Margins(15, 15, 15, 15));
        mainPanel.add(viewPanel, centerLayoutData);


        boolean hasIntro = getIntro() != null;

        if (hasIntro) {

            Panel rightPanel = new Panel();
            rightPanel.setPaddings(0, 15, 0, 0);
            rightPanel.setWidth(210);
            rightPanel.setLayout(new VerticalLayout(15));

            Panel introPanel = new Panel();
            introPanel.setIconCls("book-icon");
            introPanel.setFrame(true);
            introPanel.setTitle("Overview");
            introPanel.setHtml("<p>" + getIntro() + "</p>");

            //introPanel.setPaddings(0, 0, 0, 15);
            rightPanel.add(introPanel);
            if (showEvents()) {
                GridPanel loggerGrid = getLoggerGrid();
                loggerGrid.setWidth(195);
                loggerGrid.setHeight(300);
                rightPanel.add(loggerGrid);
            }


            BorderLayoutData eastLayoutData = new BorderLayoutData(RegionPosition.EAST);
            //eastLayoutData.setMargins(new Margins(0, 15, 0, 0));
            mainPanel.add(rightPanel, eastLayoutData);
        }
        add(mainPanel);
    }

    protected void log(String eventType, String messsage) {
        if (recordDef != null) {
            Record record = recordDef.createRecord(new Object[]{
                    new Date(),
                    eventType,
                    messsage
            });
            store.insert(0, record);
        }
    }

    protected boolean showEvents() {
        return false;
    }

    private Window getSourceWindow() {
        if (sourceWindow == null) {
            sourceWindow = new Window();
            sourceWindow.setTitle("Source");
            sourceWindow.setLayout(new FitLayout());
            sourceWindow.setIconCls(sourceIconCls);

            int width = 640;
            int userWidth = Ext.getBody().getWidth(true) - 20;
            if (userWidth < width) width = userWidth;
            sourceWindow.setWidth(width);

            int height = 600;
            int userHeight = Ext.getBody().getHeight(true) - 96;
            if (userHeight < height) height = userHeight;
            sourceWindow.setHeight(height);

            sourceWindow.setAnimateTarget(sourceButton.getId());

            int[] panelXY = getPosition();

            int windowTop = panelXY[1] + toolbar.getEl().getHeight(true) + 20;
            int windowLeft = Ext.getBody().getWidth(true) - (sourceWindow.getWidth() + 20);
            sourceWindow.setPosition(windowLeft, windowTop);
            sourceWindow.addListener(new WindowListenerAdapter() {
                public void onClose(Panel panel) {
                    sourceWindow = null;
                }
            });


            TabPanel sourceTabPanel = new TabPanel();
            sourceTabPanel.setActiveTab(0);

            String sourceUrl = getSourceUrl();

            if (sourceUrl != null) {
                Panel sourceTab = new Panel("Java");
                sourceTab.setLayout(new FitLayout());
                sourceTab.setIconCls("java-icon");
                Frame frame = new Frame(sourceUrl);
                sourceTab.add(frame);
                sourceTabPanel.add(sourceTab);
            }

            String htmlUrl = getHtmlUrl();
            if (htmlUrl != null) {
                Panel htmlTab = new Panel("HTML");
                htmlTab.setLayout(new FitLayout());
                Frame frame = new Frame(htmlUrl);
                htmlTab.setIconCls("html-icon");
                sourceTabPanel.add(frame);
            }

            String cssUrl = getCssUrl();
            if (cssUrl != null) {
                Panel cssTab = new Panel("CSS");
                cssTab.setLayout(new FitLayout());
                cssTab.setIconCls("css-icon");
                Frame frame = new Frame(cssUrl);
                cssTab.add(frame);
                sourceTabPanel.add(cssTab);
            }

            String xmlDataUrl = getXmlDataUrl();
            if (xmlDataUrl != null) {
                Panel xmlTab = new Panel("XML");
                xmlTab.setLayout(new FitLayout());
                xmlTab.setIconCls("xml-icon");
                Frame frame = new Frame(xmlDataUrl);
                xmlTab.add(frame);
                sourceTabPanel.add(xmlTab);
            }

            String jsonDataUrl = getJsonDataUrl();
            if (jsonDataUrl != null) {
                Panel jsonTab = new Panel("Json");
                jsonTab.setLayout(new FitLayout());
                jsonTab.setIconCls("json-icon");
                Frame frame = new Frame(jsonDataUrl);
                jsonTab.add(frame);
                sourceTabPanel.add(jsonTab);
            }
            sourceWindow.add(sourceTabPanel);
        }
        return sourceWindow;
    }

    private GridPanel getLoggerGrid() {

        recordDef = new RecordDef(new FieldDef[]{
                new DateFieldDef("date"),
                new StringFieldDef("type"),
                new StringFieldDef("message")
        });

        store = new Store(recordDef);

        ColumnModel columnModel = new ColumnModel(new ColumnConfig[]{
                new ColumnConfig("&nbsp", "type", 3, true, new Renderer() {
                    public String render(Object value, CellMetadata cellMetadata, Record record, int rowIndex, int colNum, Store store) {
                        if (value.equals(EVENT)) {
                            String someTip = "Event";
                            cellMetadata.setHtmlAttribute("style=\"background:#FFFF88;padding:5px\"");
                        } else {
                            cellMetadata.setHtmlAttribute("style=\"background:#4096EE;padding:5px\"");
                        }
                        return "";
                    }
                }),

                new ColumnConfig("Time", "date", 70, true, new Renderer() {
                    public String render(Object value, CellMetadata cellMetadata, Record record, int rowIndex, int colNum, Store store) {
                        DateTimeFormat formatter = DateTimeFormat.getFormat("hh:mm:ss");
                        return formatter.format((Date) value);
                    }
                })
        });

        GridPanel gridPanel = new GridPanel(store, columnModel);
        gridPanel.setTitle("Logger");
        gridPanel.setAutoExpandColumn("date");
        gridPanel.addTool(new Tool(Tool.MINUS, new Function() {
            public void execute() {
                store.removeAll();
                store.commitChanges();
            }
        }, "Clear Log"));

        GridView view = new GridView() {
            public String getRowClass(Record record, int index, RowParams rowParams, Store store) {
                rowParams.setBody(Format.format("<p>{0}</p>", record.getAsString("message")));
                return "";
            }
        };

        view.setEnableRowBody(true);
        view.setForceFit(true);
        gridPanel.setView(view);

        return gridPanel;
    }

    public String getSourceUrl() {
        return null;
    }

    public String getHtmlUrl() {
        return null;
    }

    public String getXmlDataUrl() {
        return null;
    }

    public String getJsonDataUrl() {
        return null;
    }

    public String getCssUrl() {
        return null;
    }

    public String getIntro() {
        return null;
    }

    public abstract Panel getViewPanel();

	public void moveChartOut() {
	}

	public void moveChartIn() {
	}
}