litesoft
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// This Source Code is in the Public Domain per: http://unlicense.org package org.litesoft.GWT.client.widgets.nonpublic; import org.litesoft.commonfoundation.typeutils.*; import com.google.gwt.core.client.*; import com.google.gwt.user.client.*; import com.google.gwt.user.client.ui.*; import com.google.gwt.user.client.ui.impl.*; import java.util.*; /** * To be used in conjunction with AbstractSizeableWidget */ public class AbstractSizeableHelper extends CommonElementHelper { private static final OuterSandwichHelper OUTER_SANDWICH_FACTORY = (OuterSandwichHelper) GWT.create( OuterSandwichHelper.class ); private static final FocusImpl FOCUS_PANEL_FACTORY = FocusImpl.getFocusImplForPanel(); private AbstractSizeableWidget mOurUIObject; private boolean mHidden; private Element mOuterElement; private Element mStyleElement; private Element mInnerElement; private Element mFieldSetLegend = null; private Size_1DHelper mWidthHelper = new WidthHelper(); private Size_1DHelper mHeightHelper = new HeightHelper(); private static final String INNER_CONSTRAINER = "LayoutMinSizeConstrainer"; private static final String OUTER_CONSTRAINER = "LayoutDivConstrainer"; public AbstractSizeableHelper( AbstractSizeableWidget pOurUIObject ) { // ***** may NOT do anything with the UiObject here, as it is not fully initialized yet!!!!! mOurUIObject = pOurUIObject; } public boolean isOverflowHidden() { return mHidden; } public Element getOuterElement() { return mOuterElement; } public Element getStyleElement() { return mStyleElement; } public Element getInnerElement() { return mInnerElement; } public void setInnerElement( Element pInnerElement ) { mInnerElement = pInnerElement; } public Element getFieldSetLegend() { return mFieldSetLegend; } public void setUpSpecialPart1( Element pDivSizeTable, Element pDiv, Element pInnerElement ) { mOuterElement = pDivSizeTable; mStyleElement = pDiv; mInnerElement = pInnerElement; } /** * @param pHidden true == Hidden / false == auto */ public String setUpSpecialPart2( boolean pHidden ) { return determineOverflowClass( mHidden = pHidden ); } /** * @param pHidden true == Hidden / false == auto * * @return pInnerElement */ public Element create_OeTable_SeDiv_IeGraph( boolean pHidden, Element pGraphRoot, Element pInnerElement ) { mStyleElement = appendChild( createDiv( pHidden ), pGraphRoot ); mOuterElement = createTableDivConstrainer( mStyleElement ); return mInnerElement = pInnerElement; } /** * @param pHidden true == Hidden / false == auto * * @return Div */ public Element create_OeTable_SeDiv( boolean pHidden ) { mStyleElement = createDiv( pHidden ); mOuterElement = createTableDivConstrainer( mStyleElement ); return mStyleElement; } /** * @return Div */ public Element create_OeSeIeOverflowHiddenSingleDivSandwich() { return mOuterElement = mStyleElement = mInnerElement = createDiv( true ); } /** * @return TBody */ public Element create_OeSeIeOverflowHiddenCommonDiv_TableToTBody() { Element rv = DOM.createTBody(); appendChild( create_OeSeIeOverflowHiddenSingleDivSandwich(), // createMinSizeConstrainingTableToTBody( rv ) ); return rv; } /** * @return TBody */ public Element create_OeTable_SeIeTBody() { mHidden = true; Element rv = mStyleElement = mInnerElement = DOM.createTBody(); mOuterElement = createMinSizeConstrainingTableToTBody( rv ); return rv; } /** * @param pHidden true == Hidden / false == auto * * @return Div */ public Element create_OeTable_SeDiv_IeDiv( boolean pHidden ) { return create_OeTable_SeStyle_IeDiv( createDiv( pHidden ) ); } /** * @param pHidden true == Hidden / false == auto * * @return Div */ public Element create_OeTable_SeDiv_IeFocusDiv( boolean pHidden ) { return create_OeWidget_SeStyle_IeInner( createDiv( pHidden ), FOCUS_PANEL_FACTORY.createFocusable() ); } /** * @param pHidden true == Hidden / false == auto * * @return Div */ public Element create_OeTable_SeFieldSet_IeDiv( boolean pHidden, String pTitle ) { return create_OeTable_SeStyle_IeDiv( createFieldSet( pHidden, pTitle ) ); } /** * @param pHidden true == Hidden / false == auto * * @return TR */ public Element create_OeWidget_SeDiv_IeTableToTR( boolean pHidden ) { return create_OeWidget_SeStyle_IeTableToTR( createDiv( pHidden ) ); } /** * @param pHidden true == Hidden / false == auto * * @return TR */ public Element create_OeWidget_SeFieldSet_IeTableToTR( boolean pHidden, String pTitle ) { return create_OeWidget_SeStyle_IeTableToTR( createFieldSet( pHidden, pTitle ) ); } /** * @return TR */ private Element create_OeWidget_SeStyle_IeTableToTR( Element pStyleElement ) { Element rv = DOM.createTR(); create_OeWidget_SeStyle_IeInner( pStyleElement, createMinSizeConstrainingTableToTR( rv ) ); return rv; } /** * @param pHidden true == Hidden / false == auto * * @return TBody */ public Element create_OeWidget_SeDiv_IeTableToTBody( boolean pHidden ) { return create_OeWidget_SeStyle_IeTableToTBody( createDiv( pHidden ) ); } /** * @param pHidden true == Hidden / false == auto * * @return TBody */ public Element create_OeWidget_SeFieldSet_IeTableToTBody( boolean pHidden, String pTitle ) { return create_OeWidget_SeStyle_IeTableToTBody( createFieldSet( pHidden, pTitle ) ); } /** * @return TBody */ private Element create_OeWidget_SeStyle_IeTableToTBody( Element pStyleElement ) { Element rv = DOM.createTBody(); create_OeWidget_SeStyle_IeInner( pStyleElement, createMinSizeConstrainingTableToTBody( rv ) ); return rv; } private Element create_OeWidget_SeStyle_IeInner( Element pStyleElement, Element pInnerElement ) { mInnerElement = pInnerElement; mStyleElement = appendChild( pStyleElement, mInnerElement ); mOuterElement = createOuterConstrainer( mStyleElement ); return mInnerElement; } /** * @return Outer Widget */ private Element createOuterConstrainer( Element pStyleElement ) { Element[] zElements = OUTER_SANDWICH_FACTORY.create( OUTER_CONSTRAINER ); appendChild( zElements[1], pStyleElement ); return zElements[0]; } /** * @return Div */ private Element create_OeTable_SeStyle_IeDiv( Element pStyleElement ) { mInnerElement = DOM.createDiv(); mStyleElement = pStyleElement; mOuterElement = createTableDivConstrainer( appendChild( mStyleElement, mInnerElement ) ); return mInnerElement; } /** * @return Table */ private Element createMinSizeConstrainingTableToTR( Element pTR ) { return createMinSizeConstrainingTableToTBody( appendChild( DOM.createTBody(), pTR ) ); } /** * @return Table */ private Element createMinSizeConstrainingTableToTBody( Element pTBody ) { return appendChild( createMinSizeConstrainingTable(), pTBody ); } /** * @return Table */ public static Element createMinSizeConstrainingTable() { return createTable( INNER_CONSTRAINER ); } /** * @return Table */ public static Element createLayoutDivConstrainingTable() { return createTable( OUTER_CONSTRAINER ); } /** * @return Div */ public static Element createLayoutDivConstrainingDiv() { return createDiv( OUTER_CONSTRAINER ); } /** * @return Table */ private Element createTableDivConstrainer( Element pDiv ) { Element zTable = createLayoutDivConstrainingTable(); appendChild( finishTableNgetTD( zTable ), pDiv ); return zTable; } /** * @param pHidden true == Hidden / false == auto * * @return Div */ private Element createDiv( boolean pHidden ) { return setOverflowClass( DOM.createDiv(), mHidden = pHidden ); } /** * @param pHidden true == Hidden / false == auto * * @return FieldSet */ private Element createFieldSet( boolean pHidden, String pLegend ) { Element zFieldSet = setOverflowClass( DOM.createFieldSet(), mHidden = pHidden ); if ( null != (pLegend = Strings.noEmpty( pLegend )) ) { mFieldSetLegend = DOM.createLegend(); DOM.appendChild( zFieldSet, mFieldSetLegend ); DOM.setInnerText( mFieldSetLegend, pLegend ); } return zFieldSet; } public ISizeableDimensionHelper getWidthHelper() { return mWidthHelper; } public ISizeableDimensionHelper getHeightHelper() { return mHeightHelper; } public int distributeDimensionOnChildren( IndexedPanel pIndexedPanel, ISizeableDimensionHelper pDimensionHelper ) { ChildCollector collector = new ChildCollector(); boolean anyToProcess = collector.process( pIndexedPanel, pDimensionHelper ); int newSize = collector.getNewSize(); if ( anyToProcess ) { List<ISizeableDimensionHelper> adjustables = new ArrayList<ISizeableDimensionHelper>(); List<ChildStructure> zChildStructures = collector.getChildStructures(); for ( ChildStructure zChildStructure : zChildStructures ) { ISizeableDimensionHelper zChildHelper = zChildStructure.getHelper(); int zChildCurSize = zChildStructure.getCurSize(); if ( zChildHelper.isStretchable() ) { //noinspection unchecked adjustables.add( zChildHelper ); } else { zChildHelper.setDimension( zChildCurSize ); // Propagate Sizing... } } while ( !adjustables.isEmpty() ) { int delta = deltaPerAdjustable( adjustables.size(), newSize ); ISizeableDimensionHelper zChildHelper = adjustables.remove( 0 ); int curSize = zChildHelper.getDimension(); zChildHelper.setDimension( curSize + delta ); int adjustedNewSize = zChildHelper.getDimension(); newSize -= adjustedNewSize - curSize; } } return newSize; } public int distributeDimensionToChild( IndexedPanel pIndexedPanel, ISizeableDimensionHelper pDimensionHelper, Widget pWidgetToAdjust ) { ChildCollector collector = new ChildCollector(); boolean anyToProcess = collector.process( pIndexedPanel, pDimensionHelper ); int newSize = collector.getNewSize(); if ( anyToProcess ) { ISizeableDimensionHelper zChildHelperToBeAdjusted = null; List<ChildStructure> zChildStructures = collector.getChildStructures(); for ( ChildStructure zChildStructure : zChildStructures ) { ISizeableDimensionHelper zChildHelper = zChildStructure.getHelper(); int zChildCurSize = zChildStructure.getCurSize(); if ( zChildStructure.getWidget() == pWidgetToAdjust ) { zChildHelperToBeAdjusted = zChildHelper; } else { zChildHelper.setDimension( zChildCurSize ); // Propagate Sizing... } } if ( zChildHelperToBeAdjusted != null ) { int delta = deltaPerAdjustable( 1, newSize ); int curSize = zChildHelperToBeAdjusted.getDimension(); zChildHelperToBeAdjusted.setDimension( curSize + delta ); int adjustedNewSize = zChildHelperToBeAdjusted.getDimension(); newSize -= adjustedNewSize - curSize; } if ( newSize != 0 ) { newSize = distributeDimensionOnChildren( pIndexedPanel, pDimensionHelper ); } } return newSize; } public int applyChangedDimensionToChild( Widget pChildWidget, ISizeableDimensionHelper pDimensionHelper ) { Size_1DHelper zDimHelper = (Size_1DHelper) pDimensionHelper; int newSize = zDimHelper.getOurInnerSizeWithAllowanceForScrollBars(); if ( zDimHelper.isAdjustmentsDetermined() ) { ISizeableWidget zSizeableWidget = getVisableSizeableWidget( pChildWidget ); if ( zSizeableWidget != null ) { ISizeableDimensionHelper zChildHelper = zDimHelper.getAppropriateManager( zSizeableWidget ); if ( zChildHelper.isStretchable() ) { zChildHelper.setDimension( pChildWidget, newSize ); } } } return newSize; } public void applyChangedDimensionToChildren( IndexedPanel pIndexedPanel, ISizeableDimensionHelper pDimensionHelper ) { Size_1DHelper zDimHelper = (Size_1DHelper) pDimensionHelper; int newSize = zDimHelper.getOurInnerSizeWithAllowanceForScrollBars(); // todo: Resizing from Inner when it hasn't changed! setDimensionOnChildren( pIndexedPanel, zDimHelper, newSize ); } public void forceAdjustDimensionOnChild( Widget pWidget, ISizeableDimensionHelper pDimensionHelper ) { Size_1DHelper zDimHelper = (Size_1DHelper) pDimensionHelper; int newSize = zDimHelper.getOurInnerSizeWithAllowanceForScrollBars(); zDimHelper.setDimension( pWidget, newSize ); } public void forceAdjustDimensionOnChild( Element pElement, ISizeableDimensionHelper pDimensionHelper ) { Size_1DHelper zDimHelper = (Size_1DHelper) pDimensionHelper; int newSize = zDimHelper.getOurInnerSizeWithAllowanceForScrollBars(); zDimHelper.setStyleDimension( pElement, newSize ); } public void setDimensionOnChildren( IndexedPanel pIndexedPanel, ISizeableDimensionHelper pDimensionHelper, int pNewSize ) { Size_1DHelper zDimHelper = (Size_1DHelper) pDimensionHelper; setDimensionOnChildren( pIndexedPanel, zDimHelper, pNewSize ); } private void setDimensionOnChildren( IndexedPanel pIndexedPanel, Size_1DHelper pDimHelper, int pNewSize ) { int wc = pIndexedPanel.getWidgetCount(); if ( (pNewSize > 0) && (wc != 0) ) { for ( int i = 0; i < wc; i++ ) { Widget zChildWidget = pIndexedPanel.getWidget( i ); ISizeableWidget zSizeableWidget = getVisableSizeableWidget( zChildWidget ); if ( zSizeableWidget != null ) { ISizeableDimensionHelper zChildHelper = pDimHelper.getAppropriateManager( zSizeableWidget ); if ( zChildHelper.isStretchable() ) { zChildHelper.setDimension( zChildWidget, pNewSize ); } } } } } private static ISizeableWidget getVisableSizeableWidget( Widget pWidget ) { return (pWidget instanceof ISizeableWidget) && pWidget.isVisible() ? // Order does Null Check (ISizeableWidget) pWidget : null; } private static int deltaPerAdjustable( int pAdjustables, int pDelta ) { if ( (pAdjustables == 0) || (pDelta == 0) ) { return 0; } if ( pAdjustables == 1 ) { return pDelta; } return ((pDelta < 0) ? pDelta - (pAdjustables - 1) : pDelta + (pAdjustables - 1)) / pAdjustables; } private class WidthHelper extends Size_1DHelper { public WidthHelper() { super( WidthDimensionHelper.INSTANCE ); } @Override protected ISizeableDimensionHelper getAppropriateManager( ISizeableWidget pSizeableWidget ) { return pSizeableWidget.getWidthHelper(); } @Override public boolean setPrefferredDimension() { return mOurUIObject.setPrefferredWidth(); } @Override public boolean adjustSizeBy( int pDelta ) { return mOurUIObject.adjustWidthBy( pDelta ); } @Override public void distributeToChildrenChangedDimension() { mOurUIObject.distributeToChildrenChangedWidth(); } } private class HeightHelper extends Size_1DHelper { public HeightHelper() { super( HeightDimensionHelper.INSTANCE ); } @Override protected ISizeableDimensionHelper getAppropriateManager( ISizeableWidget pSizeableWidget ) { return pSizeableWidget.getHeightHelper(); } @Override public boolean setPrefferredDimension() { return mOurUIObject.setPrefferredHeight(); } @Override public boolean adjustSizeBy( int pDelta ) { return mOurUIObject.adjustHeightBy( pDelta ); } @Override public void distributeToChildrenChangedDimension() { mOurUIObject.distributeToChildrenChangedHeight(); } } private abstract class Size_1DHelper implements ISizeableDimensionHelper { protected boolean mStretchable = false; private IDimensionHelper mDimensionHelper; protected Size_1DHelper( IDimensionHelper pDimensionHelper ) { mDimensionHelper = pDimensionHelper; } @Override public boolean isStretchable() { return mStretchable; } @Override public void setStretchable( boolean pNewValue ) { mStretchable = pNewValue; } @Override public int getDimension() { return getDimension( mOurUIObject ); } @Override public int getDimensionMaxShrinkability() { return getOurInnerSize(); } @Override public int getDecorationSize() { return mDecorationSize; } @Override public void deligateSetDimensionFromWidget( int pDimension ) { if ( setSizeableOuterIntDimension( pDimension ) ) { mOurUIObject.resized(); distributeToChildrenChangedDimension(); // todo: Not Resizing } } @Override public void contentChangedResizeToParent() { if ( isStretchable() ) { ISizeableWidget zParentWidget = getVisableSizeableWidget( mOurUIObject.getParent() ); if ( zParentWidget != null ) { ISizeableDimensionHelper zParentHelper = getAppropriateManager( zParentWidget ); int newSize = zParentHelper.getDimension() - zParentHelper.getDecorationSize(); setDimension( newSize ); } } } @Override public String getWhat() { return mDimensionHelper.getWhat(); } @Override public boolean isAdjustable() { return mDimensionHelper.isAdjustable(); } @Override public int getPosition( Widget pWidget ) { return mDimensionHelper.getPosition( pWidget ); } @Override public int getPosition( Element pElement ) { return mDimensionHelper.getPosition( pElement ); } @Override public void setStyleDimension( Element pElement, int pDimension ) { mDimensionHelper.setStyleDimension( pElement, pDimension ); } @Override public int getDimension( Element pElement ) { return mDimensionHelper.getDimension( pElement ); } @Override public void setDimension( Widget pWidget, int pDimension ) { mDimensionHelper.setDimension( pWidget, pDimension ); } @Override public int getDimension( Widget pWidget ) { return mDimensionHelper.getDimension( pWidget ); } //////////////////////////////////////////////////////////////////////////////////////////////////////////// @Override abstract public void distributeToChildrenChangedDimension(); abstract protected ISizeableDimensionHelper getAppropriateManager( ISizeableWidget pSizeableWidget ); //////////////////////////////////////////////////////////////////////////////////////////////////////////// public boolean isAdjustmentsDetermined() { return mAdjustmentsDetermined; } private int getOurInnerSize() { int size = getDimension( mOuterElement ); size -= mDecorationSize; return size; } private boolean setSizeableOuterIntDimension( int pDimension ) { //System.out.println( GWT.getTypeName( mOurUIObject ) + "{" + mOurUIObject.hashCode() + "} " + // getWhat() + " to " + pDimension ); if ( (pDimension > 0) && determineAdjustments() ) { int size = pDimension + mAdjustDimensionBy; if ( 0 <= size ) { setStyleDimension( mStyleElement, size ); return true; } } return false; } private int getOurInnerSizeWithAllowanceForScrollBars() { int size = getOurInnerSize(); return mHidden ? size : size - 20; } @Override public void setDimension( int pDimension ) { setDimension( mOurUIObject, pDimension ); } private boolean mAdjustmentsDetermined = false; private int mAdjustDimensionBy = 0; private int mDecorationSize = 0; private boolean determineAdjustments() { if ( mAdjustmentsDetermined ) { return true; } if ( !mOurUIObject.isVisible() ) { return false; } int dimOuter = getDimension( mOuterElement ); int dimInner = getDimension( mInnerElement ); mDecorationSize = dimOuter - dimInner; if ( mDecorationSize != 0 ) { // Now determine if the Decoration is inside or outside of the set"Dimension" on the Style Element Element element = mStyleElement; setStyleDimension( element, dimOuter ); int postSet_dimension = getDimension( mOuterElement ); if ( dimOuter == postSet_dimension ) // IE - growth (margins/borders/padding) is inside { // . . . . . . . . . . . . . . . . . . . . . . . . . . or there is NO Growth mAdjustDimensionBy = 0; } else // Firefox - growth (margins/borders/padding) is outside { mAdjustDimensionBy = dimOuter - postSet_dimension; setStyleDimension( element, dimOuter + mAdjustDimensionBy ); // put it back if ( dimOuter != getDimension( mOuterElement ) ) { System.err.println( "Adjustment by " + mAdjustDimensionBy + " did NOT restore the " + getWhat() ); } } // String msg = "Set" + getWhat() + "( " + pDimension + " ) adjustments on:" + // // " " + GWT.getTypeName( mOurUIObject ) + ":" + // // " " + mInnerAdjustDimension + " <inner | outer> " + mOuterAdjustDimension; // System.out.println( msg ); } return mAdjustmentsDetermined = true; } } /** * @noinspection UnusedDeclaration */ private void sout( String pPrefix, Element pElement ) { String s = pElement.toString(); String toFind = "class="; int at = s.indexOf( toFind ); if ( at != -1 ) { String t = s.substring( at + toFind.length() ); if ( t.startsWith( toFind = "\"" ) ) { t = t.substring( 1 ); } else { toFind = " "; } if ( -1 != (at = t.indexOf( toFind )) ) { s = t.substring( 0, at ); } } System.out.println( pPrefix + ": " + s ); } /** * @noinspection UnusedDeclaration */ private void sout( String pPrefix, Widget pWidget ) { String s = pWidget.toString(); String toFind = "\n"; int at = s.indexOf( toFind ); if ( at != -1 ) { s = s.substring( 0, at ).trim(); } System.out.println( pPrefix + ": " + s ); } private static class ChildCollector { private int mNewSize = 0; private List<ChildStructure> mChildStructures = Collections.emptyList(); public boolean process( IndexedPanel pIndexedPanel, ISizeableDimensionHelper pDimensionHelper ) { Size_1DHelper zDimHelper = (Size_1DHelper) pDimensionHelper; mNewSize = zDimHelper.getOurInnerSizeWithAllowanceForScrollBars(); int wc = pIndexedPanel.getWidgetCount(); if ( (mNewSize == 0) || (wc == 0) ) { return false; } for ( int i = 0; i < wc; i++ ) { Widget zChildWidget = pIndexedPanel.getWidget( i ); int zChildCurSize = zDimHelper.getDimension( zChildWidget ); //noinspection UnnecessaryLocalVariable int zChildStyledSize = zDimHelper.getDimension( DOM.getParent( zChildWidget.getElement() ) ); mNewSize -= zChildStyledSize; ISizeableWidget zSizeableWidget = getVisableSizeableWidget( zChildWidget ); if ( zSizeableWidget != null ) { if ( mChildStructures.isEmpty() ) { mChildStructures = new ArrayList<ChildStructure>(); } ISizeableDimensionHelper zChildHelper = zDimHelper.getAppropriateManager( zSizeableWidget ); mChildStructures.add( new ChildStructure( zChildWidget, zChildCurSize, zChildHelper ) ); } } return !mChildStructures.isEmpty(); } public int getNewSize() { return mNewSize; } public List<ChildStructure> getChildStructures() { return mChildStructures; } } private static class ChildStructure { private Widget mWidget; private int mCurSize; private ISizeableDimensionHelper mHelper; public ChildStructure( Widget pWidget, int pCurSize, ISizeableDimensionHelper pHelper ) { mWidget = pWidget; mCurSize = pCurSize; mHelper = pHelper; } public Widget getWidget() { return mWidget; } public int getCurSize() { return mCurSize; } public ISizeableDimensionHelper getHelper() { return mHelper; } } } |
Commits for litesoft/trunk/Java/GWT/Client/src/org/litesoft/GWT/client/widgets/nonpublic/AbstractSizeableHelper.java
Revision | Author | Commited | Message |
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948 Diff | GeorgeS | Sat 07 Jun, 2014 23:42:39 +0000 | Jusefuls Formatter Updated to New Code Format |
947 Diff | GeorgeS | Fri 06 Jun, 2014 23:36:56 +0000 | Correct Spelling of package! |
939 Diff | GeorgeS | Mon 02 Jun, 2014 21:30:31 +0000 | Extracting commonfoundation |
801 Diff | GeorgeS | Wed 15 Aug, 2012 03:59:02 +0000 | |
273 Diff | GeorgeS | Mon 13 Jun, 2011 02:04:01 +0000 | |
161 Diff | GeorgeS | Fri 01 Apr, 2011 16:18:55 +0000 | |
151 Diff | GeorgeS | Thu 17 Mar, 2011 04:16:22 +0000 | |
49 Diff | GeorgeS | Mon 12 Apr, 2010 02:59:10 +0000 | License Text |
23 Diff | GeorgeS | Wed 24 Feb, 2010 00:34:32 +0000 | |
2 | GeorgeS | Sun 07 Feb, 2010 12:50:58 +0000 |