I have another error while creating custom filter. I try to write my own skin
and filter renderer for table filter. As example of code I use
TerraTableViewSkin.class, TableViewCellRenderer.class and TableView.class. I
need to render default text in my filter when it isn't applied... like this:
http://apache-pivot-users.399431.n3.nabble.com/file/n3319533/te.png
But I have an error in my custom class GridViewFilterSkin.class in this
lines:
// render filter data
for (int columnIndex = 0, columnCount = columns.getLength();
columnIndex <
columnCount; columnIndex++) {
TableView.Column column = columns.get(columnIndex);
Object rowData = tableData.get(0);
for (int filterIndex = 0, filterCount =
filters.getLength(); filterIndex
< filterCount; filterIndex++) {
Filter filter = filters.get(filterIndex);
if
(filter.getColumnName().equals(column.getName())) {
_filter = filter;
break;
}
}
GridViewFilter.FilterRenderer filterRenderer =
_filter.getFilterRenderer();
int columnWidth = columnWidths.get(columnIndex);
Graphics2D rendererGraphics = (Graphics2D)
graphics.create(columnX,
0, columnWidth, height);
filterRenderer.render(_filter, columnIndex, tableView);
filterRenderer.paint(rendererGraphics);
rendererGraphics.dispose();
columnX += columnWidth + 1;
}
in method paint(Graphics2D graphics) in line
filterRenderer.paint(rendererGraphics); and my error is:
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at org.apache.pivot.wtk.skin.LabelSkin.paint(LabelSkin.java:295)
at org.apache.pivot.wtk.Component.paint(Component.java:2060)
at com.custom.skin.GridViewFilterSkin.paint(GridViewFilterSkin.java:192)
at org.apache.pivot.wtk.Component.paint(Component.java:2060)
at org.apache.pivot.wtk.Container.paint(Container.java:410)
at org.apache.pivot.wtk.Container.paint(Container.java:410)
at org.apache.pivot.wtk.Container.paint(Container.java:410)
at org.apache.pivot.wtk.Container.paint(Container.java:410)
at org.apache.pivot.wtk.Container.paint(Container.java:410)
at org.apache.pivot.wtk.Container.paint(Container.java:410)
at
org.apache.pivot.wtk.ApplicationContext$DisplayHost.paintDisplay(ApplicationContext.java:564)
at
org.apache.pivot.wtk.ApplicationContext$DisplayHost.paintVolatileBuffered(ApplicationContext.java:530)
at
org.apache.pivot.wtk.ApplicationContext$DisplayHost.paint(ApplicationContext.java:434)
at java.awt.GraphicsCallback$PaintCallback.run(Unknown Source)
at sun.awt.SunGraphicsCallback.runOneComponent(Unknown Source)
at sun.awt.SunGraphicsCallback.runComponents(Unknown Source)
at java.awt.Container.paint(Unknown Source)
at java.awt.Window.paint(Unknown Source)
at sun.awt.RepaintArea.paintComponent(Unknown Source)
at sun.awt.RepaintArea.paint(Unknown Source)
at sun.awt.windows.WComponentPeer.handleEvent(Unknown Source)
at sun.awt.windows.WWindowPeer.handleEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$000(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.awt.EventQueue$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
Source)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.awt.EventQueue$2.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.AccessControlContext$1.doIntersectionPrivilege(Unknown
Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
All my code to test you can find http://perdunov.net/pivotforum.rar here
if you comment line filterRenderer.paint(rendererGraphics); - you can see
my table rendered.
-----
Thank you!
--
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