I am adding a JPanel
in a JScrollPane
in my project.
All is working fine, but there is one problem about mouse scroll using the mouse-Wheel in JPanel. It’s speed is very slow on scrolling. How to make it faster?
My code is :
JPanel panel = new JPanel(); panel.setLayout(new BorderLayout()); objCheckBoxList = new CheckBoxList(); BaseTreeExplorer node = (BaseTreeExplorer)projectMain.objCommon.tree.getLastSelectedPathComponent(); if (node.getObject() != null) { cmbList.setSelectedItem(node.getParent().toString()); } else { if (node.toString().equalsIgnoreCase("List of attributes")) { cmbList.setSelectedIndex(0); } else { cmbList.setSelectedItem(node.toString()); } } panel.add(objCheckBoxList); JScrollPane myScrollPanel = new JScrollPane(panel); myScrollPanel.setPreferredSize(new Dimension(200, 200)); myScrollPanel.setBorder(BorderFactory.createTitledBorder("Attribute List"));
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Answer
You can set your scrolling speed with this line of code
myJScrollPane.getVerticalScrollBar().setUnitIncrement(16);