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// This Source Code is in the Public Domain per: http://unlicense.org |
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package org.litesoft.GWT.client.widgets; |
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import org.litesoft.GWT.client.*; |
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import org.litesoft.GWT.client.widgets.nonpublic.*; |
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import org.litesoft.commonfoundation.typeutils.*; |
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import org.litesoft.core.*; |
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import org.litesoft.core.delayed.*; |
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import org.litesoft.logger.*; |
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import com.google.gwt.user.client.*; |
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import com.google.gwt.user.client.ui.*; |
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public class SizeableDualImage extends AbstractSizeableComposite implements SourcesClickEvents, |
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SourcesMouseEvents, |
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SourcesLoadEvents { |
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public static final String IMAGE_LOAD_ERROR = "common/images/misc/NotFound.gif"; |
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|
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private static final Logger LOGGER = LoggerFactory.getLogger( SizeableDualImage.class ); |
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private MyHtmlPanel mHtmlPanel = new MyHtmlPanel( StaticSimpleIdSource.getNext() ); |
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public SizeableDualImage( String pUrl ) { |
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initWidget( new ConstrainingSizeableOuterLayers( mHtmlPanel, "litesoft-DualImage", true, mHtmlPanel.getInnerTD() ) ); |
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setUrl( pUrl ); |
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setImageSize( 100, 100 ); |
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} |
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public SizeableDualImage() { |
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this( null ); |
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} |
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public SizeableDualImage style( String pStyleName ) { |
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addStyleName( pStyleName ); |
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return this; |
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} |
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public SizeableDualImage imageSize( int pWidthPixels, int pHeightPixels ) { |
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setImageSize( pWidthPixels, pHeightPixels ); |
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return this; |
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} |
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public void setImageSize( int pWidthPixels, int pHeightPixels ) { |
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Integers.assertPositive( "Width", pWidthPixels ); |
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Integers.assertPositive( "Height", pHeightPixels ); |
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mHtmlPanel.setImageSize( pWidthPixels, pHeightPixels ); |
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} |
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public void setImageWidth( int pWidthPixels ) { |
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Integers.assertPositive( "Width", pWidthPixels ); |
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mHtmlPanel.setContainerWidth( pWidthPixels ); |
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} |
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public void setImageHeight( int pHeightPixels ) { |
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Integers.assertPositive( "Height", pHeightPixels ); |
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mHtmlPanel.setContainerHeight( pHeightPixels ); |
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} |
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/** |
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* Gets the URL of the image. |
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* |
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* @return the image URL |
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*/ |
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public String getUrl() { |
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return mHtmlPanel.getHiddenImage().getUrl(); |
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} |
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/** |
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* Sets the URL of the image to be displayed. |
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* |
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* @param pUrl the image URL |
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*/ |
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public void setUrl( String pUrl ) { |
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setUrl( pUrl, pUrl, null ); |
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} |
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public void setUrl( String pUrl, String pTitle, Command pClickCommand ) { |
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mHtmlPanel.setUrl( pUrl, pTitle, pClickCommand ); |
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} |
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// proxies to FocusPanel |
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private DelegatingClickListenerCollection mClickListeners; |
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private DelegatingMouseListenerCollection mMouseListeners; |
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private DelegatingLoadListenerCollection mLoadListeners; |
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@Override |
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public void addClickListener( ClickListener listener ) { |
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if ( listener != null ) { |
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if ( mClickListeners == null ) { |
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mClickListeners = new DelegatingClickListenerCollection( this, mHtmlPanel.getDisplayImage() ); |
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} |
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mClickListeners.add( listener ); |
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} |
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} |
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@Override |
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public void removeClickListener( ClickListener listener ) { |
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if ( (listener != null) && (mClickListeners != null) && // |
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mClickListeners.remove( listener ) && mClickListeners.isEmpty() ) { |
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mHtmlPanel.getDisplayImage().removeClickListener( mClickListeners ); |
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mClickListeners = null; |
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} |
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} |
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@Override |
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public void addMouseListener( MouseListener listener ) { |
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if ( listener != null ) { |
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if ( mMouseListeners == null ) { |
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mMouseListeners = new DelegatingMouseListenerCollection( this, mHtmlPanel.getDisplayImage() ); |
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} |
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mMouseListeners.add( listener ); |
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} |
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} |
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@Override |
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public void removeMouseListener( MouseListener listener ) { |
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if ( (listener != null) && (mMouseListeners != null) && // |
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mMouseListeners.remove( listener ) && mMouseListeners.isEmpty() ) { |
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mHtmlPanel.getDisplayImage().removeMouseListener( mMouseListeners ); |
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mMouseListeners = null; |
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} |
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} |
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@Override |
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public void addLoadListener( LoadListener listener ) { |
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if ( listener != null ) { |
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if ( mLoadListeners == null ) { |
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mLoadListeners = new DelegatingLoadListenerCollection( this, mHtmlPanel.getDisplayImage() ); |
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} |
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mLoadListeners.add( listener ); |
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} |
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} |
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@Override |
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public void removeLoadListener( LoadListener listener ) { |
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if ( (listener != null) && (mLoadListeners != null) && // |
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mLoadListeners.remove( listener ) && mLoadListeners.isEmpty() ) { |
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mHtmlPanel.getDisplayImage().removeLoadListener( mLoadListeners ); |
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mLoadListeners = null; |
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} |
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} |
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//****** Implementation Code Block to support delegation to AbsoluteSizeHelper |
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public SizeableDualImage stretchable() { |
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LLstretchable(); |
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return this; |
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} |
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// private implementation |
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@Override |
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public void setWidth( String width ) { |
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super.setWidth( width ); |
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} |
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@Override |
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public void setHeight( String height ) { |
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super.setHeight( height ); |
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} |
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public static class DelegatingLoadListenerCollection extends LoadListenerCollection implements LoadListener { |
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@SuppressWarnings({"GwtInconsistentSerializableClass"}) |
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private final Widget owner; |
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/** |
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* Constructor for {@link DelegatingLoadListenerCollection}. |
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* |
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* @param owner owner of listeners |
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* @param delegatedTo source of events |
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*/ |
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public DelegatingLoadListenerCollection( Widget owner, SourcesLoadEvents delegatedTo ) { |
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this.owner = owner; |
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delegatedTo.addLoadListener( this ); |
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} |
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@Override |
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public void onError( Widget sender ) { |
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fireError( owner ); |
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} |
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@Override |
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public void onLoad( Widget sender ) { |
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fireLoad( owner ); |
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} |
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} |
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private static class MyHtmlPanel extends HTMLPanel implements LoadListener, |
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ClickListener { |
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private static final String HIDDEN_PARENT_ID_PREFIX = "DIHI_"; |
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private static final String DISPLAY_PARENT_ID_PREFIX = "DIVI_"; |
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private static final String TRANSPARENT_SPACER = "<img width='1' height='1' src='" + TransparentImage.URL + "'>"; |
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private OurImage mHiddenImage = new OurImage( TransparentImage.URL ); |
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private OurImage mDisplayImage = new OurImage( TransparentImage.URL ); |
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private Element mInnerTD; |
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private String mTitle = ""; |
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private Command mClickCommand = null; |
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private String mPendingURL = null; |
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public MyHtmlPanel( int zUniqueID ) { |
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super( "<table cellpadding='0' cellspacing='0' border='0'>" + // |
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/**/"<tr>" + // |
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/* */"<td colspan='3' class='litesoft-DualImageInnerBorder'>" + // |
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/* */"<div id='" + HIDDEN_PARENT_ID_PREFIX + zUniqueID + "' style='height:1px; width:1px; overflow:hidden;'>" + |
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/* */TRANSPARENT_SPACER + "<br>" + // |
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/* */"</div>" + // |
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/* */"</td>" + // |
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/**/"</tr>" + // |
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/**/"<tr>" + // |
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/* */"<td class='litesoft-DualImageInnerBorder'>" + TRANSPARENT_SPACER + "</td>" + // |
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/* */"<td class='litesoft-DualImageBG' align='center' valign='middle' id='" + DISPLAY_PARENT_ID_PREFIX + zUniqueID + "'></td>" + // |
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/* */"<td class='litesoft-DualImageInnerBorder'>" + TRANSPARENT_SPACER + "</td>" + // |
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/**/"</tr>" + // |
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/**/"<tr>" + // |
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/* */"<td colspan='3' class='litesoft-DualImageInnerBorder'>" + TRANSPARENT_SPACER + "</td>" + |
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/**/"</tr>" + // |
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"</table>" ); |
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add( mHiddenImage, HIDDEN_PARENT_ID_PREFIX + zUniqueID ); |
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add( mDisplayImage, DISPLAY_PARENT_ID_PREFIX + zUniqueID ); |
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mInnerTD = DOM.getParent( mDisplayImage.getElement() ); |
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mHiddenImage.addLoadListener( this ); |
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mDisplayImage.addClickListener( this ); |
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} |
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@Override |
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public void onClick( Widget sender ) { |
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if ( mClickCommand != null ) { |
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mClickCommand.execute(); |
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} |
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} |
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public Element getInnerTD() { |
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return mInnerTD; |
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} |
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public Image getHiddenImage() { |
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return mHiddenImage; |
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} |
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public Image getDisplayImage() { |
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return mDisplayImage; |
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} |
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public void setUrl( String pUrl, String pTitle, Command pClickCommand ) { |
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if ( null != (pUrl = Strings.noEmpty( pUrl )) ) { |
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mTitle = Strings.deNull( pTitle ); |
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mClickCommand = pClickCommand; |
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String zCurrentHiddenUrl = mHiddenImage.getUrl(); |
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if ( pUrl.equals( zCurrentHiddenUrl ) ) { |
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mDisplayImage.setTitle( mTitle ); |
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} else if ( isAttached() ) { |
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LLsetURL( pUrl ); |
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} else { |
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mPendingURL = pUrl; |
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} |
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} |
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} |
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@Override |
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protected void onAttach() { |
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super.onAttach(); |
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if ( mPendingURL != null ) { |
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String zURL = mPendingURL; |
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mPendingURL = null; |
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LLsetURL( zURL ); |
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} |
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} |
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private void LLsetURL( String pUrl ) { |
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LOGGER.info.log( "Loading: ", pUrl ); |
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setLoading(); |
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// Eliminate the "magic" width & height that IE somehow added! |
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DOM.removeElementAttribute( mHiddenImage.getElement(), "width" ); |
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DOM.removeElementAttribute( mHiddenImage.getElement(), "height" ); |
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mHiddenImage.setUrl( pUrl ); |
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} |
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public void setImageSize( int pWidthPixels, int pHeightPixels ) { |
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setContainerWidth( pWidthPixels ); |
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setContainerHeight( pHeightPixels ); |
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} |
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private int getContainerHeight() { |
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return DOM.getElementPropertyInt( mInnerTD, "height" ); |
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} |
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public void setContainerHeight( int pHeightPixels ) { |
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DOM.setElementPropertyInt( mInnerTD, "height", pHeightPixels ); |
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} |
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private int getContainerWidth() { |
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return DOM.getElementPropertyInt( mInnerTD, "width" ); |
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} |
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public void setContainerWidth( int pWidthPixels ) { |
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DOM.setElementPropertyInt( mInnerTD, "width", pWidthPixels ); |
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} |
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@Override |
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public void setWidth( String pWidth ) { |
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int zNewSize = parse( "Width", pWidth ); |
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int zCurImageSize = mDisplayImage.getWidth(); |
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int zCurContainerSize = getContainerWidth(); |
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if ( zNewSize != zCurContainerSize ) { |
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if ( zNewSize < zCurImageSize ) { |
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mDisplayImage.setWidth( zNewSize ); |
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} |
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setContainerWidth( zNewSize ); |
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reScale(); |
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} |
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} |
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@Override |
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public void setHeight( String pHeight ) { |
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int zNewSize = parse( "Height", pHeight ); |
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int zCurImageSize = mDisplayImage.getHeight(); |
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int zCurContainerSize = getContainerHeight(); |
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if ( zNewSize != zCurContainerSize ) { |
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if ( zNewSize < zCurImageSize ) { |
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mDisplayImage.setHeight( zNewSize ); |
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} |
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setContainerHeight( zNewSize ); |
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reScale(); |
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} |
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} |
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|
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private int parse( String pWhat, String pValue ) { |
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try { |
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return AbstractSizeableWidget.parse( pValue ); |
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} |
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catch ( NumberFormatException e ) { |
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throw new IllegalArgumentException( "Attempt to set" + pWhat + "( \"" + pValue + "\" ) on " + getClass().getName() ); |
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} |
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} |
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private void reScale() { |
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if ( mLoaded ) { |
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int zCurImageWidth = mHiddenImage.getOffsetWidth(); |
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int zCurImageHeight = mHiddenImage.getOffsetHeight(); |
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if ( (zCurImageHeight == 1) && (zCurImageWidth == 1) ) { |
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LOGGER.warn.log( "Hidden Image still reporting 1x1" ); |
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TimedRunnableManager.INSTANCE.runIn( new TimedRunnable() { |
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@Override |
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public Again runOnce() { |
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reScale(); |
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return null; |
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} |
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}, 50 ); |
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} |
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int zCurContainerWidth = getContainerWidth(); |
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int zCurContainerHeight = getContainerHeight(); |
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float zFactorWidth = (1.0f * zCurContainerWidth) / zCurImageWidth; |
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float zFactorHeight = (1.0f * zCurContainerHeight) / zCurImageHeight; |
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float zFactor = Math.min( zFactorWidth, zFactorHeight ); |
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int zNewWidth = (int) (zFactor * zCurImageWidth); |
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int zNewHeight = (int) (zFactor * zCurImageHeight); |
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mDisplayImage.setWidth( zNewWidth ); |
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mDisplayImage.setHeight( zNewHeight ); |
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|
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// System.out.println( "reScale:\n" + // |
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//// Window.alert( // |
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// mHiddenImage.getUrl() + "\n" + // |
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// "zCurImageWidth=" + zCurImageWidth + "\n"+ // |
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// "zCurImageHeight=" + zCurImageHeight + "\n"+ // |
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|
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//// "zCurContainerWidth=" + zCurContainerWidth + "\n"+ // |
375 |
|
- |
//// "zCurContainerHeight=" + zCurContainerHeight + "\n"+ // |
376 |
|
- |
//// "zFactorWidth=" + zFactorWidth + "\n"+ // |
377 |
|
- |
//// "zFactorHeight=" + zFactorHeight + "\n"+ // |
378 |
|
- |
// "zFactor=" + zFactor + "\n"+ // |
379 |
|
- |
// "zNewWidth=" + zNewWidth + "\n"+ // |
380 |
|
- |
// "zNewHeight=" + zNewHeight + "\n"+ // |
381 |
|
- |
//// "mDisplayImage.getWidth()=" + mDisplayImage.getWidth() + "\n"+ // |
382 |
|
- |
//// "mDisplayImage.getHeight()=" + mDisplayImage.getHeight() + "\n"+ // |
383 |
|
- |
//// "mDisplayImage.getOffsetWidth()=" + mDisplayImage.getOffsetWidth() + "\n"+ // |
384 |
|
- |
//// "mDisplayImage.getOffsetHeight()=" + mDisplayImage.getOffsetHeight() + "\n"+ // |
385 |
|
- |
// "" ); |
386 |
|
- |
|
387 |
|
- |
String zHiddenUrl = mHiddenImage.getUrl(); |
388 |
|
- |
if ( !Objects.areNonArraysEqual( zHiddenUrl, mDisplayImage.getUrl() ) ) { |
389 |
|
- |
mDisplayImage.setUrl( zHiddenUrl ); |
390 |
|
- |
} |
391 |
|
- |
} |
392 |
|
- |
} |
393 |
|
- |
|
394 |
|
- |
private boolean mLoaded = false; |
395 |
|
- |
|
396 |
|
- |
private void setLoading() { |
397 |
|
- |
mLoaded = false; |
398 |
|
- |
} |
399 |
|
- |
|
400 |
|
- |
private void setLoaded() { |
401 |
|
- |
if ( !mLoaded ) { |
402 |
|
- |
mLoaded = true; |
403 |
|
- |
reScale(); |
404 |
|
- |
mDisplayImage.setTitle( mTitle ); |
405 |
|
- |
} |
406 |
|
- |
} |
407 |
|
- |
|
408 |
|
- |
@Override |
409 |
|
- |
public void onError( Widget sender ) { |
410 |
|
- |
String zNotFound = "Not found: " + mHiddenImage.getUrl(); |
411 |
|
- |
LOGGER.error.log( zNotFound ); |
412 |
|
- |
setUrl( IMAGE_LOAD_ERROR, zNotFound, null ); |
413 |
|
- |
} |
414 |
|
- |
|
415 |
|
- |
@Override |
416 |
|
- |
public void onLoad( Widget sender ) { |
417 |
|
- |
LOGGER.info.log( "Loaded: ", mHiddenImage.getUrl() ); |
418 |
|
- |
setLoaded(); |
419 |
|
- |
} |
420 |
|
- |
} |
421 |
|
- |
} |
|
1 |
+ |
// This Source Code is in the Public Domain per: http://unlicense.org |
|
2 |
+ |
package org.litesoft.GWT.client.widgets; |
|
3 |
+ |
|
|
4 |
+ |
import org.litesoft.GWT.client.*; |
|
5 |
+ |
import org.litesoft.GWT.client.widgets.nonpublic.*; |
|
6 |
+ |
import org.litesoft.commonfoundation.base.*; |
|
7 |
+ |
import org.litesoft.commonfoundation.typeutils.*; |
|
8 |
+ |
import org.litesoft.core.*; |
|
9 |
+ |
import org.litesoft.core.delayed.*; |
|
10 |
+ |
import org.litesoft.logger.*; |
|
11 |
+ |
|
|
12 |
+ |
import com.google.gwt.user.client.*; |
|
13 |
+ |
import com.google.gwt.user.client.ui.*; |
|
14 |
+ |
|
|
15 |
+ |
public class SizeableDualImage extends AbstractSizeableComposite implements SourcesClickEvents, |
|
16 |
+ |
SourcesMouseEvents, |
|
17 |
+ |
SourcesLoadEvents { |
|
18 |
+ |
public static final String IMAGE_LOAD_ERROR = "common/images/misc/NotFound.gif"; |
|
19 |
+ |
|
|
20 |
+ |
private static final Logger LOGGER = LoggerFactory.getLogger( SizeableDualImage.class ); |
|
21 |
+ |
|
|
22 |
+ |
private MyHtmlPanel mHtmlPanel = new MyHtmlPanel( StaticSimpleIdSource.getNext() ); |
|
23 |
+ |
|
|
24 |
+ |
public SizeableDualImage( String pUrl ) { |
|
25 |
+ |
initWidget( new ConstrainingSizeableOuterLayers( mHtmlPanel, "litesoft-DualImage", true, mHtmlPanel.getInnerTD() ) ); |
|
26 |
+ |
|
|
27 |
+ |
setUrl( pUrl ); |
|
28 |
+ |
setImageSize( 100, 100 ); |
|
29 |
+ |
} |
|
30 |
+ |
|
|
31 |
+ |
public SizeableDualImage() { |
|
32 |
+ |
this( null ); |
|
33 |
+ |
} |
|
34 |
+ |
|
|
35 |
+ |
public SizeableDualImage style( String pStyleName ) { |
|
36 |
+ |
addStyleName( pStyleName ); |
|
37 |
+ |
return this; |
|
38 |
+ |
} |
|
39 |
+ |
|
|
40 |
+ |
public SizeableDualImage imageSize( int pWidthPixels, int pHeightPixels ) { |
|
41 |
+ |
setImageSize( pWidthPixels, pHeightPixels ); |
|
42 |
+ |
return this; |
|
43 |
+ |
} |
|
44 |
+ |
|
|
45 |
+ |
public void setImageSize( int pWidthPixels, int pHeightPixels ) { |
|
46 |
+ |
Integers.assertPositive( "Width", pWidthPixels ); |
|
47 |
+ |
Integers.assertPositive( "Height", pHeightPixels ); |
|
48 |
+ |
mHtmlPanel.setImageSize( pWidthPixels, pHeightPixels ); |
|
49 |
+ |
} |
|
50 |
+ |
|
|
51 |
+ |
public void setImageWidth( int pWidthPixels ) { |
|
52 |
+ |
Integers.assertPositive( "Width", pWidthPixels ); |
|
53 |
+ |
mHtmlPanel.setContainerWidth( pWidthPixels ); |
|
54 |
+ |
} |
|
55 |
+ |
|
|
56 |
+ |
public void setImageHeight( int pHeightPixels ) { |
|
57 |
+ |
Integers.assertPositive( "Height", pHeightPixels ); |
|
58 |
+ |
mHtmlPanel.setContainerHeight( pHeightPixels ); |
|
59 |
+ |
} |
|
60 |
+ |
|
|
61 |
+ |
/** |
|
62 |
+ |
* Gets the URL of the image. |
|
63 |
+ |
* |
|
64 |
+ |
* @return the image URL |
|
65 |
+ |
*/ |
|
66 |
+ |
public String getUrl() { |
|
67 |
+ |
return mHtmlPanel.getHiddenImage().getUrl(); |
|
68 |
+ |
} |
|
69 |
+ |
|
|
70 |
+ |
/** |
|
71 |
+ |
* Sets the URL of the image to be displayed. |
|
72 |
+ |
* |
|
73 |
+ |
* @param pUrl the image URL |
|
74 |
+ |
*/ |
|
75 |
+ |
public void setUrl( String pUrl ) { |
|
76 |
+ |
setUrl( pUrl, pUrl, null ); |
|
77 |
+ |
} |
|
78 |
+ |
|
|
79 |
+ |
public void setUrl( String pUrl, String pTitle, Command pClickCommand ) { |
|
80 |
+ |
mHtmlPanel.setUrl( pUrl, pTitle, pClickCommand ); |
|
81 |
+ |
} |
|
82 |
+ |
|
|
83 |
+ |
// proxies to FocusPanel |
|
84 |
+ |
|
|
85 |
+ |
private DelegatingClickListenerCollection mClickListeners; |
|
86 |
+ |
private DelegatingMouseListenerCollection mMouseListeners; |
|
87 |
+ |
private DelegatingLoadListenerCollection mLoadListeners; |
|
88 |
+ |
|
|
89 |
+ |
@Override |
|
90 |
+ |
public void addClickListener( ClickListener listener ) { |
|
91 |
+ |
if ( listener != null ) { |
|
92 |
+ |
if ( mClickListeners == null ) { |
|
93 |
+ |
mClickListeners = new DelegatingClickListenerCollection( this, mHtmlPanel.getDisplayImage() ); |
|
94 |
+ |
} |
|
95 |
+ |
mClickListeners.add( listener ); |
|
96 |
+ |
} |
|
97 |
+ |
} |
|
98 |
+ |
|
|
99 |
+ |
@Override |
|
100 |
+ |
public void removeClickListener( ClickListener listener ) { |
|
101 |
+ |
if ( (listener != null) && (mClickListeners != null) && // |
|
102 |
+ |
mClickListeners.remove( listener ) && mClickListeners.isEmpty() ) { |
|
103 |
+ |
mHtmlPanel.getDisplayImage().removeClickListener( mClickListeners ); |
|
104 |
+ |
mClickListeners = null; |
|
105 |
+ |
} |
|
106 |
+ |
} |
|
107 |
+ |
|
|
108 |
+ |
@Override |
|
109 |
+ |
public void addMouseListener( MouseListener listener ) { |
|
110 |
+ |
if ( listener != null ) { |
|
111 |
+ |
if ( mMouseListeners == null ) { |
|
112 |
+ |
mMouseListeners = new DelegatingMouseListenerCollection( this, mHtmlPanel.getDisplayImage() ); |
|
113 |
+ |
} |
|
114 |
+ |
mMouseListeners.add( listener ); |
|
115 |
+ |
} |
|
116 |
+ |
} |
|
117 |
+ |
|
|
118 |
+ |
@Override |
|
119 |
+ |
public void removeMouseListener( MouseListener listener ) { |
|
120 |
+ |
if ( (listener != null) && (mMouseListeners != null) && // |
|
121 |
+ |
mMouseListeners.remove( listener ) && mMouseListeners.isEmpty() ) { |
|
122 |
+ |
mHtmlPanel.getDisplayImage().removeMouseListener( mMouseListeners ); |
|
123 |
+ |
mMouseListeners = null; |
|
124 |
+ |
} |
|
125 |
+ |
} |
|
126 |
+ |
|
|
127 |
+ |
@Override |
|
128 |
+ |
public void addLoadListener( LoadListener listener ) { |
|
129 |
+ |
if ( listener != null ) { |
|
130 |
+ |
if ( mLoadListeners == null ) { |
|
131 |
+ |
mLoadListeners = new DelegatingLoadListenerCollection( this, mHtmlPanel.getDisplayImage() ); |
|
132 |
+ |
} |
|
133 |
+ |
mLoadListeners.add( listener ); |
|
134 |
+ |
} |
|
135 |
+ |
} |
|
136 |
+ |
|
|
137 |
+ |
@Override |
|
138 |
+ |
public void removeLoadListener( LoadListener listener ) { |
|
139 |
+ |
if ( (listener != null) && (mLoadListeners != null) && // |
|
140 |
+ |
mLoadListeners.remove( listener ) && mLoadListeners.isEmpty() ) { |
|
141 |
+ |
mHtmlPanel.getDisplayImage().removeLoadListener( mLoadListeners ); |
|
142 |
+ |
mLoadListeners = null; |
|
143 |
+ |
} |
|
144 |
+ |
} |
|
145 |
+ |
|
|
146 |
+ |
//****** Implementation Code Block to support delegation to AbsoluteSizeHelper |
|
147 |
+ |
|
|
148 |
+ |
public SizeableDualImage stretchable() { |
|
149 |
+ |
LLstretchable(); |
|
150 |
+ |
return this; |
|
151 |
+ |
} |
|
152 |
+ |
|
|
153 |
+ |
// private implementation |
|
154 |
+ |
|
|
155 |
+ |
@Override |
|
156 |
+ |
public void setWidth( String width ) { |
|
157 |
+ |
super.setWidth( width ); |
|
158 |
+ |
} |
|
159 |
+ |
|
|
160 |
+ |
@Override |
|
161 |
+ |
public void setHeight( String height ) { |
|
162 |
+ |
super.setHeight( height ); |
|
163 |
+ |
} |
|
164 |
+ |
|
|
165 |
+ |
public static class DelegatingLoadListenerCollection extends LoadListenerCollection implements LoadListener { |
|
166 |
+ |
@SuppressWarnings({"GwtInconsistentSerializableClass"}) |
|
167 |
+ |
private final Widget owner; |
|
168 |
+ |
|
|
169 |
+ |
/** |
|
170 |
+ |
* Constructor for {@link DelegatingLoadListenerCollection}. |
|
171 |
+ |
* |
|
172 |
+ |
* @param owner owner of listeners |
|
173 |
+ |
* @param delegatedTo source of events |
|
174 |
+ |
*/ |
|
175 |
+ |
public DelegatingLoadListenerCollection( Widget owner, SourcesLoadEvents delegatedTo ) { |
|
176 |
+ |
this.owner = owner; |
|
177 |
+ |
delegatedTo.addLoadListener( this ); |
|
178 |
+ |
} |
|
179 |
+ |
|
|
180 |
+ |
@Override |
|
181 |
+ |
public void onError( Widget sender ) { |
|
182 |
+ |
fireError( owner ); |
|
183 |
+ |
} |
|
184 |
+ |
|
|
185 |
+ |
@Override |
|
186 |
+ |
public void onLoad( Widget sender ) { |
|
187 |
+ |
fireLoad( owner ); |
|
188 |
+ |
} |
|
189 |
+ |
} |
|
190 |
+ |
|
|
191 |
+ |
private static class MyHtmlPanel extends HTMLPanel implements LoadListener, |
|
192 |
+ |
ClickListener { |
|
193 |
+ |
private static final String HIDDEN_PARENT_ID_PREFIX = "DIHI_"; |
|
194 |
+ |
private static final String DISPLAY_PARENT_ID_PREFIX = "DIVI_"; |
|
195 |
+ |
|
|
196 |
+ |
private static final String TRANSPARENT_SPACER = "<img width='1' height='1' src='" + TransparentImage.URL + "'>"; |
|
197 |
+ |
|
|
198 |
+ |
private OurImage mHiddenImage = new OurImage( TransparentImage.URL ); |
|
199 |
+ |
private OurImage mDisplayImage = new OurImage( TransparentImage.URL ); |
|
200 |
+ |
private Element mInnerTD; |
|
201 |
+ |
private String mTitle = ""; |
|
202 |
+ |
private Command mClickCommand = null; |
|
203 |
+ |
private String mPendingURL = null; |
|
204 |
+ |
|
|
205 |
+ |
public MyHtmlPanel( int zUniqueID ) { |
|
206 |
+ |
super( "<table cellpadding='0' cellspacing='0' border='0'>" + // |
|
207 |
+ |
/**/"<tr>" + // |
|
208 |
+ |
/* */"<td colspan='3' class='litesoft-DualImageInnerBorder'>" + // |
|
209 |
+ |
/* */"<div id='" + HIDDEN_PARENT_ID_PREFIX + zUniqueID + "' style='height:1px; width:1px; overflow:hidden;'>" + |
|
210 |
+ |
/* */TRANSPARENT_SPACER + "<br>" + // |
|
211 |
+ |
/* */"</div>" + // |
|
212 |
+ |
/* */"</td>" + // |
|
213 |
+ |
/**/"</tr>" + // |
|
214 |
+ |
/**/"<tr>" + // |
|
215 |
+ |
/* */"<td class='litesoft-DualImageInnerBorder'>" + TRANSPARENT_SPACER + "</td>" + // |
|
216 |
+ |
/* */"<td class='litesoft-DualImageBG' align='center' valign='middle' id='" + DISPLAY_PARENT_ID_PREFIX + zUniqueID + "'></td>" + // |
|
217 |
+ |
/* */"<td class='litesoft-DualImageInnerBorder'>" + TRANSPARENT_SPACER + "</td>" + // |
|
218 |
+ |
/**/"</tr>" + // |
|
219 |
+ |
/**/"<tr>" + // |
|
220 |
+ |
/* */"<td colspan='3' class='litesoft-DualImageInnerBorder'>" + TRANSPARENT_SPACER + "</td>" + |
|
221 |
+ |
/**/"</tr>" + // |
|
222 |
+ |
"</table>" ); |
|
223 |
+ |
|
|
224 |
+ |
add( mHiddenImage, HIDDEN_PARENT_ID_PREFIX + zUniqueID ); |
|
225 |
+ |
add( mDisplayImage, DISPLAY_PARENT_ID_PREFIX + zUniqueID ); |
|
226 |
+ |
|
|
227 |
+ |
mInnerTD = DOM.getParent( mDisplayImage.getElement() ); |
|
228 |
+ |
|
|
229 |
+ |
mHiddenImage.addLoadListener( this ); |
|
230 |
+ |
mDisplayImage.addClickListener( this ); |
|
231 |
+ |
} |
|
232 |
+ |
|
|
233 |
+ |
@Override |
|
234 |
+ |
public void onClick( Widget sender ) { |
|
235 |
+ |
if ( mClickCommand != null ) { |
|
236 |
+ |
mClickCommand.execute(); |
|
237 |
+ |
} |
|
238 |
+ |
} |
|
239 |
+ |
|
|
240 |
+ |
public Element getInnerTD() { |
|
241 |
+ |
return mInnerTD; |
|
242 |
+ |
} |
|
243 |
+ |
|
|
244 |
+ |
public Image getHiddenImage() { |
|
245 |
+ |
return mHiddenImage; |
|
246 |
+ |
} |
|
247 |
+ |
|
|
248 |
+ |
public Image getDisplayImage() { |
|
249 |
+ |
return mDisplayImage; |
|
250 |
+ |
} |
|
251 |
+ |
|
|
252 |
+ |
public void setUrl( String pUrl, String pTitle, Command pClickCommand ) { |
|
253 |
+ |
if ( null != (pUrl = ConstrainTo.significantOrNull( pUrl )) ) { |
|
254 |
+ |
mTitle = ConstrainTo.notNull( pTitle ); |
|
255 |
+ |
mClickCommand = pClickCommand; |
|
256 |
+ |
String zCurrentHiddenUrl = mHiddenImage.getUrl(); |
|
257 |
+ |
if ( pUrl.equals( zCurrentHiddenUrl ) ) { |
|
258 |
+ |
mDisplayImage.setTitle( mTitle ); |
|
259 |
+ |
} else if ( isAttached() ) { |
|
260 |
+ |
LLsetURL( pUrl ); |
|
261 |
+ |
} else { |
|
262 |
+ |
mPendingURL = pUrl; |
|
263 |
+ |
} |
|
264 |
+ |
} |
|
265 |
+ |
} |
|
266 |
+ |
|
|
267 |
+ |
@Override |
|
268 |
+ |
protected void onAttach() { |
|
269 |
+ |
super.onAttach(); |
|
270 |
+ |
if ( mPendingURL != null ) { |
|
271 |
+ |
String zURL = mPendingURL; |
|
272 |
+ |
mPendingURL = null; |
|
273 |
+ |
LLsetURL( zURL ); |
|
274 |
+ |
} |
|
275 |
+ |
} |
|
276 |
+ |
|
|
277 |
+ |
private void LLsetURL( String pUrl ) { |
|
278 |
+ |
LOGGER.info.log( "Loading: ", pUrl ); |
|
279 |
+ |
setLoading(); |
|
280 |
+ |
// Eliminate the "magic" width & height that IE somehow added! |
|
281 |
+ |
DOM.removeElementAttribute( mHiddenImage.getElement(), "width" ); |
|
282 |
+ |
DOM.removeElementAttribute( mHiddenImage.getElement(), "height" ); |
|
283 |
+ |
mHiddenImage.setUrl( pUrl ); |
|
284 |
+ |
} |
|
285 |
+ |
|
|
286 |
+ |
public void setImageSize( int pWidthPixels, int pHeightPixels ) { |
|
287 |
+ |
setContainerWidth( pWidthPixels ); |
|
288 |
+ |
setContainerHeight( pHeightPixels ); |
|
289 |
+ |
} |
|
290 |
+ |
|
|
291 |
+ |
private int getContainerHeight() { |
|
292 |
+ |
return DOM.getElementPropertyInt( mInnerTD, "height" ); |
|
293 |
+ |
} |
|
294 |
+ |
|
|
295 |
+ |
public void setContainerHeight( int pHeightPixels ) { |
|
296 |
+ |
DOM.setElementPropertyInt( mInnerTD, "height", pHeightPixels ); |
|
297 |
+ |
} |
|
298 |
+ |
|
|
299 |
+ |
private int getContainerWidth() { |
|
300 |
+ |
return DOM.getElementPropertyInt( mInnerTD, "width" ); |
|
301 |
+ |
} |
|
302 |
+ |
|
|
303 |
+ |
public void setContainerWidth( int pWidthPixels ) { |
|
304 |
+ |
DOM.setElementPropertyInt( mInnerTD, "width", pWidthPixels ); |
|
305 |
+ |
} |
|
306 |
+ |
|
|
307 |
+ |
@Override |
|
308 |
+ |
public void setWidth( String pWidth ) { |
|
309 |
+ |
int zNewSize = parse( "Width", pWidth ); |
|
310 |
+ |
int zCurImageSize = mDisplayImage.getWidth(); |
|
311 |
+ |
int zCurContainerSize = getContainerWidth(); |
|
312 |
+ |
if ( zNewSize != zCurContainerSize ) { |
|
313 |
+ |
if ( zNewSize < zCurImageSize ) { |
|
314 |
+ |
mDisplayImage.setWidth( zNewSize ); |
|
315 |
+ |
} |
|
316 |
+ |
setContainerWidth( zNewSize ); |
|
317 |
+ |
reScale(); |
|
318 |
+ |
} |
|
319 |
+ |
} |
|
320 |
+ |
|
|
321 |
+ |
@Override |
|
322 |
+ |
public void setHeight( String pHeight ) { |
|
323 |
+ |
int zNewSize = parse( "Height", pHeight ); |
|
324 |
+ |
int zCurImageSize = mDisplayImage.getHeight(); |
|
325 |
+ |
int zCurContainerSize = getContainerHeight(); |
|
326 |
+ |
if ( zNewSize != zCurContainerSize ) { |
|
327 |
+ |
if ( zNewSize < zCurImageSize ) { |
|
328 |
+ |
mDisplayImage.setHeight( zNewSize ); |
|
329 |
+ |
} |
|
330 |
+ |
setContainerHeight( zNewSize ); |
|
331 |
+ |
reScale(); |
|
332 |
+ |
} |
|
333 |
+ |
} |
|
334 |
+ |
|
|
335 |
+ |
private int parse( String pWhat, String pValue ) { |
|
336 |
+ |
try { |
|
337 |
+ |
return AbstractSizeableWidget.parse( pValue ); |
|
338 |
+ |
} |
|
339 |
+ |
catch ( NumberFormatException e ) { |
|
340 |
+ |
throw new IllegalArgumentException( "Attempt to set" + pWhat + "( \"" + pValue + "\" ) on " + getClass().getName() ); |
|
341 |
+ |
} |
|
342 |
+ |
} |
|
343 |
+ |
|
|
344 |
+ |
private void reScale() { |
|
345 |
+ |
if ( mLoaded ) { |
|
346 |
+ |
int zCurImageWidth = mHiddenImage.getOffsetWidth(); |
|
347 |
+ |
int zCurImageHeight = mHiddenImage.getOffsetHeight(); |
|
348 |
+ |
|
|
349 |
+ |
if ( (zCurImageHeight == 1) && (zCurImageWidth == 1) ) { |
|
350 |
+ |
LOGGER.warn.log( "Hidden Image still reporting 1x1" ); |
|
351 |
+ |
TimedRunnableManager.INSTANCE.runIn( new TimedRunnable() { |
|
352 |
+ |
@Override |
|
353 |
+ |
public Again runOnce() { |
|
354 |
+ |
reScale(); |
|
355 |
+ |
return null; |
|
356 |
+ |
} |
|
357 |
+ |
}, 50 ); |
|
358 |
+ |
} |
|
359 |
+ |
|
|
360 |
+ |
int zCurContainerWidth = getContainerWidth(); |
|
361 |
+ |
int zCurContainerHeight = getContainerHeight(); |
|
362 |
+ |
float zFactorWidth = (1.0f * zCurContainerWidth) / zCurImageWidth; |
|
363 |
+ |
float zFactorHeight = (1.0f * zCurContainerHeight) / zCurImageHeight; |
|
364 |
+ |
float zFactor = Math.min( zFactorWidth, zFactorHeight ); |
|
365 |
+ |
int zNewWidth = (int) (zFactor * zCurImageWidth); |
|
366 |
+ |
int zNewHeight = (int) (zFactor * zCurImageHeight); |
|
367 |
+ |
mDisplayImage.setWidth( zNewWidth ); |
|
368 |
+ |
mDisplayImage.setHeight( zNewHeight ); |
|
369 |
+ |
|
|
370 |
+ |
// System.out.println( "reScale:\n" + // |
|
371 |
+ |
//// Window.alert( // |
|
372 |
+ |
// mHiddenImage.getUrl() + "\n" + // |
|
373 |
+ |
// "zCurImageWidth=" + zCurImageWidth + "\n"+ // |
|
374 |
+ |
// "zCurImageHeight=" + zCurImageHeight + "\n"+ // |
|
375 |
+ |
//// "zCurContainerWidth=" + zCurContainerWidth + "\n"+ // |
|
376 |
+ |
//// "zCurContainerHeight=" + zCurContainerHeight + "\n"+ // |
|
377 |
+ |
//// "zFactorWidth=" + zFactorWidth + "\n"+ // |
|
378 |
+ |
//// "zFactorHeight=" + zFactorHeight + "\n"+ // |
|
379 |
+ |
// "zFactor=" + zFactor + "\n"+ // |
|
380 |
+ |
// "zNewWidth=" + zNewWidth + "\n"+ // |
|
381 |
+ |
// "zNewHeight=" + zNewHeight + "\n"+ // |
|
382 |
+ |
//// "mDisplayImage.getWidth()=" + mDisplayImage.getWidth() + "\n"+ // |
|
383 |
+ |
//// "mDisplayImage.getHeight()=" + mDisplayImage.getHeight() + "\n"+ // |
|
384 |
+ |
//// "mDisplayImage.getOffsetWidth()=" + mDisplayImage.getOffsetWidth() + "\n"+ // |
|
385 |
+ |
//// "mDisplayImage.getOffsetHeight()=" + mDisplayImage.getOffsetHeight() + "\n"+ // |
|
386 |
+ |
// "" ); |
|
387 |
+ |
|
|
388 |
+ |
String zHiddenUrl = mHiddenImage.getUrl(); |
|
389 |
+ |
if ( !Currently.areEqual( zHiddenUrl, mDisplayImage.getUrl() ) ) { |
|
390 |
+ |
mDisplayImage.setUrl( zHiddenUrl ); |
|
391 |
+ |
} |
|
392 |
+ |
} |
|
393 |
+ |
} |
|
394 |
+ |
|
|
395 |
+ |
private boolean mLoaded = false; |
|
396 |
+ |
|
|
397 |
+ |
private void setLoading() { |
|
398 |
+ |
mLoaded = false; |
|
399 |
+ |
} |
|
400 |
+ |
|
|
401 |
+ |
private void setLoaded() { |
|
402 |
+ |
if ( !mLoaded ) { |
|
403 |
+ |
mLoaded = true; |
|
404 |
+ |
reScale(); |
|
405 |
+ |
mDisplayImage.setTitle( mTitle ); |
|
406 |
+ |
} |
|
407 |
+ |
} |
|
408 |
+ |
|
|
409 |
+ |
@Override |
|
410 |
+ |
public void onError( Widget sender ) { |
|
411 |
+ |
String zNotFound = "Not found: " + mHiddenImage.getUrl(); |
|
412 |
+ |
LOGGER.error.log( zNotFound ); |
|
413 |
+ |
setUrl( IMAGE_LOAD_ERROR, zNotFound, null ); |
|
414 |
+ |
} |
|
415 |
+ |
|
|
416 |
+ |
@Override |
|
417 |
+ |
public void onLoad( Widget sender ) { |
|
418 |
+ |
LOGGER.info.log( "Loaded: ", mHiddenImage.getUrl() ); |
|
419 |
+ |
setLoaded(); |
|
420 |
+ |
} |
|
421 |
+ |
} |
|
422 |
+ |
} |