com.alee.laf.list.WebListUI Maven / Gradle / Ivy
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/*
* This file is part of WebLookAndFeel library.
*
* WebLookAndFeel library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* WebLookAndFeel library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with WebLookAndFeel library. If not, see ( list, true )
{
@Override
public void hoverChanged ( final Integer previous, final Integer current )
{
// Updating hover row
final int previousIndex = hoverIndex;
hoverIndex = current;
// Repainting nodes according to hover changes
// This occurs only if hover highlight is enabled
if ( painter != null && painter.isItemHoverDecorationSupported () )
{
repaintCell ( previousIndex );
repaintCell ( hoverIndex );
}
// Updating custom WebLaF tooltip display state
final ListToolTipProvider provider = getToolTipProvider ();
if ( provider != null )
{
final ListCellArea oldArea = previousIndex != -1 ? new ListCellArea ( previousIndex ) : null;
final ListCellArea newArea = hoverIndex != -1 ? new ListCellArea ( hoverIndex ) : null;
provider.hoverAreaChanged ( list, oldArea, newArea );
}
// Informing {@link com.alee.laf.list.WebList} about hover index change
// This is performed here to avoid excessive hover listeners usage
if ( list instanceof WebList )
{
( ( WebList ) list ).fireHoverChanged ( previous, current );
}
}
/**
* Repaints specified row if it exists and it is visible.
*
* @param index index of cell to repaint
*/
private void repaintCell ( final int index )
{
if ( index != -1 )
{
final Rectangle cellBounds = list.getCellBounds ( index, index );
if ( cellBounds != null )
{
list.repaint ( cellBounds );
}
}
}
};
hoverCellTracker.install ();
// Applying skin
StyleManager.installSkin ( list );
}
@Override
public void uninstallUI ( final JComponent c )
{
// Uninstalling applied skin
StyleManager.uninstallSkin ( list );
// Removing custom listeners
hoverCellTracker.uninstall ();
hoverCellTracker = null;
// Uninstalling UI
super.uninstallUI ( c );
}
@Override
public Shape getShape ()
{
return PainterSupport.getShape ( list, painter );
}
@Override
public boolean isShapeDetectionEnabled ()
{
return PainterSupport.isShapeDetectionEnabled ( list, painter );
}
@Override
public void setShapeDetectionEnabled ( final boolean enabled )
{
PainterSupport.setShapeDetectionEnabled ( list, painter, enabled );
}
@Override
public Insets getMargin ()
{
return PainterSupport.getMargin ( list );
}
@Override
public void setMargin ( final Insets margin )
{
PainterSupport.setMargin ( list, margin );
}
@Override
public Insets getPadding ()
{
return PainterSupport.getPadding ( list );
}
@Override
public void setPadding ( final Insets padding )
{
PainterSupport.setPadding ( list, padding );
}
/**
* Returns list painter.
*
* @return list painter
*/
public Painter getPainter ()
{
return PainterSupport.getPainter ( painter );
}
/**
* Sets list painter.
* Pass null to remove list painter.
*
* @param painter new list painter
*/
public void setPainter ( final Painter painter )
{
PainterSupport.setPainter ( list, new Consumer ()
{
@Override
public void accept ( final IListPainter newPainter )
{
WebListUI.this.painter = newPainter;
}
}, this.painter, painter, IListPainter.class, AdaptiveListPainter.class );
}
@Override
public int getHoverIndex ()
{
return hoverIndex;
}
@Override
public ListSelectionStyle getSelectionStyle ()
{
return selectionStyle;
}
@Override
public void setSelectionStyle ( final ListSelectionStyle style )
{
this.selectionStyle = style;
}
@Override
public void updateListLayout ()
{
updateLayoutStateNeeded = modelChanged;
redrawList ();
}
@Override
public CellRendererPane getCellRendererPane ()
{
return rendererPane;
}
@Override
public boolean contains ( final JComponent c, final int x, final int y )
{
return PainterSupport.contains ( c, this, painter, x, y );
}
@Override
public void paint ( final Graphics g, final JComponent c )
{
if ( painter != null )
{
// Invalidating list layout
validateListLayout ();
// Preparing list painter
painter.prepareToPaint ( getLayoutOrientation (), getListHeight (), getListWidth (), getColumnCount (), getRowsPerColumn (),
getPreferredHeight (), cellWidth, cellHeight, cellHeights );
// Painting list
painter.paint ( ( Graphics2D ) g, c, this, new Bounds ( c ) );
}
}
/**
* Perform list layout validation.
*/
protected void validateListLayout ()
{
switch ( getLayoutOrientation () )
{
case JList.VERTICAL_WRAP:
if ( list.getHeight () != getListHeight () )
{
updateLayoutStateNeeded |= heightChanged;
redrawList ();
}
break;
case JList.HORIZONTAL_WRAP:
if ( list.getWidth () != getListWidth () )
{
updateLayoutStateNeeded |= widthChanged;
redrawList ();
}
break;
default:
break;
}
maybeUpdateLayoutState ();
}
/**
* Requests full list update.
*/
public void redrawList ()
{
list.revalidate ();
list.repaint ();
}
/**
* Returns layout orientation field value.
* This is a bridge method to access private basic list UI field.
*
* @return layout orientation field value
*/
protected Integer getLayoutOrientation ()
{
return getBasicListUIValue ( "layoutOrientation" );
}
/**
* Returns cached list height field value.
* This is a bridge method to access private basic list UI field.
*
* @return cached list height field value
*/
protected Integer getListHeight ()
{
return getBasicListUIValue ( "listHeight" );
}
/**
* Returns cached list width field value.
* This is a bridge method to access private basic list UI field.
*
* @return cached list width field value
*/
protected Integer getListWidth ()
{
return getBasicListUIValue ( "listWidth" );
}
/**
* Returns cached column count field value.
* This is a bridge method to access private basic list UI field.
*
* @return cached column count field value
*/
protected Integer getColumnCount ()
{
return getBasicListUIValue ( "columnCount" );
}
/**
* Returns cached rows per column amount field value.
* This is a bridge method to access private basic list UI field.
*
* @return cached rows per column amount field value
*/
protected Integer getRowsPerColumn ()
{
return getBasicListUIValue ( "rowsPerColumn" );
}
/**
* Returns cached preferred height field value.
* This is a bridge method to access private basic list UI field.
*
* @return cached preferred height field value
*/
protected Integer getPreferredHeight ()
{
return getBasicListUIValue ( "preferredHeight" );
}
/**
* Returns basic list UI field value.
* This is a bridge method to access private basic list UI field.
*
* @param field field name
* @param field type
* @return basic list UI field value
*/
protected T getBasicListUIValue ( final String field )
{
return ReflectUtils.getFieldValueSafely ( this, field );
}
/**
* Returns {@link ListToolTipProvider} for {@link JList} that uses this {@link WebListUI}.
*
* @return {@link ListToolTipProvider} for {@link JList} that uses this {@link WebListUI}
*/
protected ListToolTipProvider getToolTipProvider ()
{
return list != null && list instanceof WebList ? ( ( WebList ) list ).getToolTipProvider () : null;
}
@Override
public Dimension getPreferredSize ( final JComponent c )
{
return PainterSupport.getPreferredSize ( c, super.getPreferredSize ( c ), painter );
}
}