ingo@4329: package de.intevation.flys.client.client.ui.map;
ingo@4329: 
ingo@4329: import java.util.List;
ingo@4329: 
ingo@4329: import com.smartgwt.client.types.ImageStyle;
ingo@4329: import com.smartgwt.client.types.VerticalAlignment;
ingo@4329: import com.smartgwt.client.widgets.Canvas;
ingo@4329: import com.smartgwt.client.widgets.Img;
ingo@4329: import com.smartgwt.client.widgets.Label;
ingo@4329: import com.smartgwt.client.widgets.Window;
ingo@4329: import com.smartgwt.client.widgets.layout.HLayout;
ingo@4329: import com.smartgwt.client.widgets.layout.VLayout;
ingo@4329: 
ingo@4329: import de.intevation.flys.client.shared.MapUtils;
ingo@4329: import de.intevation.flys.client.shared.model.AttributedTheme;
ingo@4329: import de.intevation.flys.client.shared.model.Theme;
ingo@4329: import de.intevation.flys.client.shared.model.ThemeList;
ingo@4329: 
ingo@4329: 
ingo@4329: public class LegendWindow extends Window {
ingo@4329: 
ingo@4329:     private ThemeList themeList;
ingo@4329: 
ingo@4329:     private VLayout legendContainer;
ingo@4329: 
ingo@4329:     public LegendWindow(ThemeList themeList) {
ingo@4329:         this.themeList = themeList;
ingo@4329:         this.legendContainer = new VLayout();
ingo@4329: 
ingo@4329:         init();
ingo@4329:     }
ingo@4329: 
ingo@4329:     public void update(ThemeList themeList) {
ingo@4329:         this.themeList = themeList;
ingo@4329: 
ingo@4329:         Canvas[] legends = legendContainer.getMembers();
ingo@4329:         legendContainer.removeMembers(legends);
ingo@4329: 
ingo@4329:         addLegends();
ingo@4329:     }
ingo@4329: 
ingo@4329:     private void addLegends() {
ingo@4329:         List<Theme> themes = themeList.getActiveThemes();
ingo@4329: 
ingo@4329:         for (Theme theme : themes) {
ingo@4329:             if (theme.getActive() == 0) {
ingo@4329:                 continue;
ingo@4329:             }
ingo@4329: 
ingo@4329:             if (theme instanceof AttributedTheme) {
ingo@4329:                 legendContainer
ingo@4329:                     .addMember(createLegendGraphicsRow((AttributedTheme) theme));
ingo@4329:             }
ingo@4329:         }
ingo@4329:     }
ingo@4329: 
ingo@4329:     private Canvas createLegendGraphicsRow(AttributedTheme at) {
ingo@4329:         Label label = new Label(at.getDescription());
ingo@4329:         Img img = createLegendGraphics(at);
ingo@4329: 
ingo@4329:         HLayout row = new HLayout();
ingo@4329:         row.addMember(label);
ingo@4329:         row.addMember(img);
ingo@4329: 
ingo@4329:         row.setHeight(150);
ingo@4329:         row.setWidth(400);
ingo@4329: 
ingo@4329:         return row;
ingo@4329:     }
ingo@4329: 
ingo@4329:     private Img createLegendGraphics(AttributedTheme at) {
ingo@4329:         String imgUrl = MapUtils.getLegendGraphicUrl(at.getAttr("url"),
ingo@4329:             at.getAttr("layers"));
ingo@4329: 
ingo@4329:         Img img = new Img(imgUrl);
ingo@4329:         img.setImageType(ImageStyle.CENTER);
ingo@4329:         img.setAutoFit(true);
ingo@4329: 
ingo@4329:         return img;
ingo@4329:     }
ingo@4329: 
ingo@4329:     private void init() {
ingo@4329:         legendContainer.setAutoHeight();
ingo@4329:         legendContainer.setLayoutAlign(VerticalAlignment.TOP);
ingo@4329:         legendContainer.setAlign(VerticalAlignment.CENTER);
ingo@4329: 
ingo@4329:         setTitle("WMS Legend");
ingo@4329:         setAutoSize(true);
ingo@4329:         setCanDragResize(true);
ingo@4329:         setIsModal(false);
ingo@4329:         setShowModalMask(false);
ingo@4329:         setLayoutAlign(VerticalAlignment.TOP);
ingo@4329:         setAlign(VerticalAlignment.TOP);
ingo@4329: 
ingo@4329:         addItem(legendContainer);
ingo@4329:         addLegends();
ingo@4329: 
ingo@4329:         centerInPage();
ingo@4329:     }
ingo@4329: }