本文整理汇总了Java中javax.swing.JScrollBar.getUnitIncrement方法的典型用法代码示例。如果您正苦于以下问题：Java JScrollBar.getUnitIncrement方法的具体用法？Java JScrollBar.getUnitIncrement怎么用？Java JScrollBar.getUnitIncrement使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类javax.swing.JScrollBar的用法示例。
在下文中一共展示了JScrollBar.getUnitIncrement方法的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: scroll
import javax.swing.JScrollBar; //导入方法依赖的package包/类
private static void scroll(JScrollBar scrollBar, MouseWheelEvent e) {
if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
int unitsToScroll = e.getUnitsToScroll();
int direction = unitsToScroll < 0 ? -1 : 1;
if (unitsToScroll != 0) {
int increment = scrollBar.getUnitIncrement(direction);
int oldValue = scrollBar.getValue();
int newValue = oldValue + increment * unitsToScroll;
newValue = Math.max(Math.min(newValue, scrollBar.getMaximum() -
scrollBar.getVisibleAmount()), scrollBar.getMinimum());
if (oldValue != newValue) scrollBar.setValue(newValue);
}
}
}
示例2: scroll
import javax.swing.JScrollBar; //导入方法依赖的package包/类
private static void scroll(JScrollBar scroller, MouseWheelEvent event) {
if (event.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
int direction = event.getUnitsToScroll() < 0 ? -1 : 1;
int increment = scroller.getUnitIncrement(direction);
int amount = event.getScrollAmount();
int oldValue = scroller.getValue();
int newValue = oldValue + increment * amount * direction;
if (oldValue != newValue) scroller.setValue(newValue);
event.consume();
}
}
示例3: adjustTreeScrollBar
import javax.swing.JScrollBar; //导入方法依赖的package包/类
private void adjustTreeScrollBar(int treeViewWidth) {
DebugTreeView tView = getTreeView();
if (tView == null) {
scrollBarPanel.setVisible(false);
return;
}
JViewport viewport = tView.getViewport();
Point point = viewport.getViewPosition();
if (point.y < 0) {
viewport.setViewPosition(new Point(point.x, 0));
}
Dimension viewSize = viewport.getExtentSize();
Dimension treeSize = viewport.getViewSize();
if (treeViewWidth < 0) {
treeViewWidth = treeSize.width;
}
int unitHeight = tView.getUnitHeight();
if (unitHeight > 0) {
JScrollBar sbar = mainScrollPane.getVerticalScrollBar();
if (sbar.getUnitIncrement() != unitHeight) {
sbar.setUnitIncrement(unitHeight);
}
}
if (treeViewWidth <= viewSize.width) {
scrollBarPanel.setVisible(false);
} else {
treeScrollBar.setMaximum(treeViewWidth);
treeScrollBar.setVisibleAmount(viewSize.width);
if (unitHeight > 0) {
treeScrollBar.setUnitIncrement(unitHeight / 2);
}
treeScrollBar.setBlockIncrement(viewSize.width);
scrollBarPanel.setVisible(true);
} // else
}
示例4: mouseWheelMoved
import javax.swing.JScrollBar; //导入方法依赖的package包/类
@Override
public void mouseWheelMoved(MouseWheelEvent e) {
JScrollBar scrollBar = mainScrollPane.getVerticalScrollBar();
if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
int totalScrollAmount = e.getUnitsToScroll() * scrollBar.getUnitIncrement();
scrollBar.setValue(scrollBar.getValue() + totalScrollAmount);
}
}