Mercurial > dive4elements > river
view flys-client/src/main/java/de/intevation/flys/client/client/ui/ThemeNavigationPanel.java @ 4254:33b15ac17fd1
Only create and add GaugePanel when necessary
The GaugePanel isn't created always and only show if WINFO and a river is
selected now. It is only created on demand. Therefore all access to the
GaugePanel is abstraced via methods that check if the GaugePanel is null before
accessing it's methods.
author | Björn Ricks <bjoern.ricks@intevation.de> |
---|---|
date | Thu, 25 Oct 2012 13:58:53 +0200 |
parents | f43d06d6a4a2 |
children | f3325079dacc |
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package de.intevation.flys.client.client.ui; import java.util.ArrayList; import java.util.List; import com.google.gwt.core.client.GWT; import com.smartgwt.client.widgets.Canvas; import com.smartgwt.client.widgets.ImgButton; import com.smartgwt.client.widgets.events.ClickEvent; import com.smartgwt.client.widgets.events.ClickHandler; import com.smartgwt.client.widgets.layout.HLayout; import de.intevation.flys.client.client.FLYSConstants; import de.intevation.flys.client.client.event.OnMoveEvent; import de.intevation.flys.client.client.event.OnMoveHandler; /** * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class ThemeNavigationPanel extends Canvas { public static final int PANEL_MARGIN = 5; public static final int BUTTON_HEIGHT = 25; public static final int BUTTON_MARGIN = 5; protected FLYSConstants MSG = GWT.create(FLYSConstants.class); protected List<OnMoveHandler> handlers; public ThemeNavigationPanel() { this.handlers = new ArrayList<OnMoveHandler>(); setWidth100(); setHeight(BUTTON_HEIGHT); setMargin(PANEL_MARGIN); HLayout layout = new HLayout(); layout.setWidth100(); layout.setHeight(BUTTON_HEIGHT); layout.setMembersMargin(BUTTON_MARGIN); Canvas cu = createButton(MSG.theme_top(), OnMoveEvent.TOP); Canvas u = createButton(MSG.theme_up(), OnMoveEvent.UP); Canvas d = createButton(MSG.theme_down(), OnMoveEvent.DOWN); Canvas cd = createButton(MSG.theme_bottom(), OnMoveEvent.BOTTOM); layout.addMember(cu); layout.addMember(u); layout.addMember(d); layout.addMember(cd); addChild(layout); } protected Canvas createButton(final String title, final int moveType) { String url = GWT.getHostPageBaseURL() + title; ImgButton b = new ImgButton(); b.setSrc(url); b.setHeight(BUTTON_HEIGHT); b.setWidth(40); b.setIconHeight(BUTTON_HEIGHT-10); b.setShowDown(false); b.setShowRollOver(false); b.setShowDisabled(false); b.setShowDisabledIcon(true); b.setShowDownIcon(false); b.setShowFocusedIcon(false); b.setBackgroundColor("f2f2f2"); b.setBorder("1px solid #A6ABB4"); b.addClickHandler(new ClickHandler() { public void onClick(ClickEvent event) { fireOnMoveEvent(moveType); } }); return b; } protected void addOnMoveHandler(OnMoveHandler handler) { if (handler != null) { handlers.add(handler); } } protected void fireOnMoveEvent(int type) { OnMoveEvent event = new OnMoveEvent(type); for (OnMoveHandler handler: handlers) { handler.onMove(event); } } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :