Making the background of Gantt Sheet transparent

Question

How to make the background of GanttSheet transparent?

Answer

There are several components that need to be configured to achieve this:

// Transparent background color:

Color bg = new Color( 0,0,0,0 );

// On the IlvChart:

ganttChart.setBackground( bg );

ganttChart.setOpaque( false );

// On the IlvManagerView:

ganttChart.getGanttSheet().setDoubleBuffering(false);

ganttChart.getGanttSheet().setBackground(bg);

// On the IlvJManagerViewPanel:

((JComponent)ganttChart.getGanttSheet().getParent()).setOpaque(false);

// On the IlvHierarchyChart$Splitter

((JComponent)ganttChart.getGanttSheet().getParent().getParent().getParent()).setOpaque(false);

// Remove the default weekend grid:

ganttFront.getGanttSheet().setVerticalGrid(new IlvVerticalGanttGrid());

// On the horizontal and vertical grid:

ganttFront.getGanttSheet().getHorizontalGrid().setForeground(bg);

ganttFront.getGanttSheet().getVerticalGrid().setForeground(bg);