raimund@2977: package de.intevation.flys.client.client.ui.chart;
raimund@2977: 
raimund@2977: import java.util.Date;
raimund@2977: import java.util.HashMap;
raimund@2977: import java.util.Map;
raimund@2977: import java.util.Set;
raimund@2977: 
raimund@2977: import com.google.gwt.core.client.GWT;
raimund@2977: 
raimund@2977: import com.smartgwt.client.widgets.Canvas;
raimund@2977: import com.smartgwt.client.widgets.Img;
raimund@2977: import com.smartgwt.client.widgets.events.ResizedEvent;
raimund@2977: import com.smartgwt.client.widgets.events.ResizedHandler;
raimund@2977: import com.smartgwt.client.widgets.layout.HLayout;
raimund@2977: import com.smartgwt.client.widgets.layout.VLayout;
raimund@2977: 
raimund@2977: import de.intevation.flys.client.client.Config;
raimund@2977: import de.intevation.flys.client.client.ui.CollectionView;
raimund@2977: import de.intevation.flys.client.client.ui.OutputTab;
raimund@2977: 
raimund@2977: import de.intevation.flys.client.shared.model.Collection;
raimund@2977: import de.intevation.flys.client.shared.model.OutputMode;
raimund@2977: 
raimund@2977: 
raimund@2977: /**
raimund@2977:  * An overview output tab. This tab displays an overview of all charts
raimund@2977:  * integrated in the current calculation mode.
raimund@2977:  *
raimund@2977:  * @author <a href="mailto:raimund.renkert@intevation.de">Raimund Renkert</a>
raimund@2977:  */
raimund@2977: public class OverviewOutputTab
raimund@2977: extends OutputTab
raimund@2977: implements   ResizedHandler
raimund@2977: {
raimund@2977:     /** The collection view.*/
raimund@2977:     protected CollectionView view;
raimund@2977: 
raimund@2977:     /** The root layout. */
raimund@2977:     protected HLayout root;
raimund@2977: 
raimund@2977:     /** The columns */
raimund@2977:     protected VLayout[] columns;
raimund@2977: 
raimund@2977:     /** The chart container.*/
raimund@2977:     protected Canvas[][] charts;
raimund@2977: 
raimund@2977:     /** All relevant output modes. */
raimund@2977:     protected Map<String, OutputMode> relModes;
raimund@2977: 
raimund@2977: 
raimund@2977:     public OverviewOutputTab(
raimund@2977:         String title,
raimund@2977:         Collection collection,
raimund@2977:         OutputMode mode,
raimund@2977:         CollectionView collectionView)
raimund@2977:     {
raimund@2977:         super(title, collection, collectionView, mode);
raimund@2977: 
raimund@2977:         relModes = new HashMap<String, OutputMode>();
raimund@2977: 
raimund@2977:         Map<String, OutputMode> modes = collection.getOutputModes();
raimund@2977:         Set<String> keys = modes.keySet();
raimund@2977: 
raimund@2977:         // Get all relevant outputs.
raimund@2977:         for (String key: keys) {
raimund@2977:             OutputMode m = modes.get(key);
raimund@2977:             if (m.getType().equals("chart")) {
raimund@2977:                 relModes.put(key, m);
raimund@2977:             }
raimund@2977:         }
raimund@2977: 
raimund@2977:         root = new HLayout();
raimund@2977:         setPane(root);
raimund@2977:         root.addResizedHandler(this);
raimund@2977: 
raimund@2977:         // Get the column and row count and initialize the grid.
raimund@2977:         int width = getColumnCount(relModes.size());
raimund@2977:         int height = getRowCount(relModes.size());
raimund@2977:         charts = new Canvas[width][height];
raimund@2977:         columns = new VLayout[width];
raimund@2977: 
raimund@2977:         for (int i = 0; i < width; i++) {
raimund@2977:             columns[i] = new VLayout();
raimund@2977:             root.addMember(columns[i]);
raimund@2977: 
raimund@2977:             for (int j = 0; j < height; j++) {
raimund@2977:                 charts[i][j] = new Canvas();
raimund@2977: 
raimund@2977:                 // This is for 3, 6 or 9 charts only! 
raimund@2977:                 // TODO: Calculate the height.
raimund@2982:                 charts[i][j].setHeight("50%");
raimund@2977: 
raimund@2977:                 String type =
raimund@2977:                     ((OutputMode)relModes.values()
raimund@2977:                         .toArray()[j + i * height]).getName();
raimund@2977:                 columns[i].addMember(charts[i][j]);
raimund@2977:                 charts[i][j].addChild(
raimund@2977:                     new Img(getImgUrl(
raimund@2977:                         charts[i][j].getWidth(),
raimund@2977:                         charts[i][j].getHeight(), type)));
raimund@2977: 
raimund@2977:             }
raimund@2977:         }
raimund@2977:     }
raimund@2977: 
raimund@2977: 
raimund@2977:     /**
raimund@2977:      * Resize handler.
raimund@2977:      * 
raimund@2977:      * @param event The resize event.
raimund@2977:      */
raimund@2977:     @Override
raimund@2977:     public void onResized(ResizedEvent event) {
raimund@2977:         for (int i = 0; i < charts.length; i++) {
raimund@2982:             // This is for 3, 6 or 9 charts only! 
raimund@2982:             // TODO: Calculate the width.
raimund@2982:             columns[i].setWidth(root.getWidth()/3);
raimund@2982: 
raimund@2977:             for (int j = 0; j < charts[i].length; j++) {
raimund@2977:                 String type =
raimund@2977:                     ((OutputMode)relModes.values()
raimund@2977:                         .toArray()[j + i * charts[i].length]).getName();
raimund@2977:                 Canvas[] children = charts[i][j].getChildren();
raimund@2977:                 for (int k = 0; k < children.length; k++) {
raimund@2977:                     charts[i][j].removeChild(children[k]);
raimund@2977:                 }
raimund@2977:                 charts[i][j].addChild(new Img(
raimund@2977:                         getImgUrl(
raimund@2977:                             charts[i][j].getWidth(),
raimund@2977:                             charts[i][j].getHeight(),
raimund@2977:                             type),
raimund@2977:                         charts[i][j].getWidth(),
raimund@2977:                         charts[i][j].getHeight()
raimund@2977:                         ));
raimund@2977:             }
raimund@2977:         }
raimund@2977:     }
raimund@2977: 
raimund@2977: 
raimund@2977:     /**
raimund@2977:      * Returns the column count for the grid.
raimund@2977:      *
raimund@2977:      * @param count all fields
raimund@2977:      * @return the column count
raimund@2977:      */
raimund@2982:     protected int getRowCount(int count) {
raimund@2977:         if (count <= 3) {
raimund@2977:             return 1;
raimund@2977:         }
raimund@2977:         else if (count > 3 && count < 9) {
raimund@2977:             return 2;
raimund@2977:         }
raimund@2977:         else {
raimund@2977:             return 3;
raimund@2977:         }
raimund@2977:     }
raimund@2977: 
raimund@2977: 
raimund@2977:     /**
raimund@2977:      * Returns the row count for the grid.
raimund@2977:      *
raimund@2977:      * @param count all fields
raimund@2977:      * @return the row count
raimund@2977:      */
raimund@2982:     protected int getColumnCount(int count) {
raimund@2977:         if(count <= 3) {
raimund@2977:             return count;
raimund@2977:         }
raimund@2977:         else if(count > 3 && count < 9) {
raimund@2982:             return ((count + (count % 2))/getRowCount(count));
raimund@2977:         }
raimund@2977:         else {
raimund@2982:             return (count + (3 - (count % 3))/getRowCount(count));
raimund@2977:         }
raimund@2977:     }
raimund@2977: 
raimund@2977: 
raimund@2977:     /**
raimund@2977:      * Builds the URL that points to the chart image.
raimund@2977:      *
raimund@2977:      * @param width The width of the requested chart.
raimund@2977:      * @param height The height of the requested chart.
raimund@2977:      * @param xr Optional x range (used for zooming).
raimund@2977:      * @param yr Optional y range (used for zooming).
raimund@2977:      *
raimund@2977:      * @return the URL to the chart image.
raimund@2977:      */
raimund@2977:     protected String getImgUrl(int width, int height, String type) {
raimund@2977:         Config config = Config.getInstance();
raimund@2977: 
raimund@2977:         String imgUrl = GWT.getModuleBaseURL();
raimund@2977:         imgUrl += "chart";
raimund@2977:         imgUrl += "?uuid=" + collection.identifier();
raimund@2977:         imgUrl += "&type=" + type;
raimund@2977:         imgUrl += "&locale=" + config.getLocale();
raimund@2977:         imgUrl += "&timestamp=" + new Date().getTime();
raimund@2977:         imgUrl += "&width=" + Integer.toString(width);
raimund@2977:         imgUrl += "&height=" + Integer.toString(height);
raimund@2977: 
raimund@2977:         return imgUrl;
raimund@2977:     }
raimund@2977: }
raimund@2977: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :