ingo@27: package de.intevation.flys.client.client.ui;
ingo@27: 
ingo@27: import com.google.gwt.core.client.GWT;
ingo@27: import com.google.gwt.resources.client.ImageResource;
ingo@27: 
ingo@27: import com.smartgwt.client.types.Alignment;
ingo@27: import com.smartgwt.client.widgets.Img;
ingo@27: import com.smartgwt.client.widgets.Label;
ingo@27: import com.smartgwt.client.widgets.layout.HLayout;
ingo@27: import com.smartgwt.client.widgets.layout.VLayout;
ingo@27: 
ingo@27: import de.intevation.flys.client.client.FLYSImages;
ingo@27: import de.intevation.flys.client.client.FLYSMessages;
ingo@27: 
ingo@27: 
ingo@27: /**
ingo@27:  * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
ingo@27:  */
ingo@27: public class FLYSHeader extends HLayout {
ingo@27: 
ingo@27:     /** The interface that provides the image resources. */
ingo@27:     private FLYSImages IMAGES = GWT.create(FLYSImages.class);
ingo@27: 
ingo@27:     /** The interface that provides the message resources. */
ingo@27:     private FLYSMessages MESSAGES = GWT.create(FLYSMessages.class);
ingo@27: 
ingo@27:     /** The height used for this header.*/
ingo@27:     public static final int HEIGHT = 75;
ingo@27: 
ingo@27:     /** The height used for the images.*/
ingo@27:     public static final int IMG_HEIGHT = 50;
ingo@27: 
ingo@27: 
ingo@27:     public FLYSHeader() {
ingo@27:         init();
ingo@27:     }
ingo@27: 
ingo@27:     public void init() {
ingo@27:         setWidth100();
ingo@27:         setHeight(HEIGHT);
ingo@27:         setLayoutLeftMargin(5);
ingo@27:         setLayoutRightMargin(5);
ingo@27: 
ingo@27:         ImageResource flysRes = IMAGES.logoFlys();
ingo@27:         ImageResource bfgRes  = IMAGES.logoBfg();
ingo@27: 
ingo@27:         Img flys = new Img(
ingo@27:             flysRes.getURL(),
ingo@27:             calcWidth(flysRes,IMG_HEIGHT),
ingo@27:             IMG_HEIGHT);
ingo@27: 
ingo@27:         Img bfg  = new Img(
ingo@27:             bfgRes.getURL(),
ingo@27:             calcWidth(bfgRes, IMG_HEIGHT),
ingo@27:             IMG_HEIGHT);
ingo@27: 
ingo@27:         Label fullname = new Label(MESSAGES.fullname());
ingo@27:         fullname.setHeight(HEIGHT - IMG_HEIGHT);
ingo@27: 
ingo@27:         VLayout left = new VLayout();
ingo@27:         left.addMember(flys);
ingo@27:         left.addMember(fullname);
ingo@27: 
ingo@27:         HLayout right = new HLayout();
ingo@27:         right.setAlign(Alignment.RIGHT);
ingo@27:         right.addMember(bfg);
ingo@27: 
ingo@27:         addMember(left);
ingo@27:         addMember(right);
ingo@27:     }
ingo@27: 
ingo@27: 
ingo@27:     /**
ingo@27:      * This method calculates the wight of an image relative to the given
ingo@27:      * height.
ingo@27:      *
ingo@27:      * @param res The ImageResource that points to the image.
ingo@27:      * @param height The pre-defined height.
ingo@27:      *
ingo@27:      * @return the calculated width that should be used for the image.
ingo@27:      */
ingo@27:     protected int calcWidth(ImageResource res, int height) {
ingo@27:         int widthOrig  = res.getWidth();
ingo@27:         int heightOrig = res.getHeight();
ingo@27: 
ingo@27:         double factor = heightOrig / height;
ingo@27:         double width  = widthOrig / factor;
ingo@27: 
ingo@27:         return (int) width * 10 / 10;
ingo@27:     }
ingo@27: }
ingo@27: // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :