本文整理汇总了Java中java.awt.event.MouseWheelEvent.getUnitsToScroll方法的典型用法代码示例。如果您正苦于以下问题：Java MouseWheelEvent.getUnitsToScroll方法的具体用法？Java MouseWheelEvent.getUnitsToScroll怎么用？Java MouseWheelEvent.getUnitsToScroll使用的例子？那么, 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java.awt.event.MouseWheelEvent的用法示例。
在下文中一共展示了MouseWheelEvent.getUnitsToScroll方法的7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: mouseWheelMoved
import java.awt.event.MouseWheelEvent; //导入方法依赖的package包/类
public void mouseWheelMoved(MouseWheelEvent e) {
// Mouse wheel zooming takes precedence over scrolling
if (isMouseZoomingEnabled() &&
e.getSource() == InteractiveCanvasComponent.this) return;
// Change the ScrollBar value
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: getIncrementFromAdjustable
import java.awt.event.MouseWheelEvent; //导入方法依赖的package包/类
public static int getIncrementFromAdjustable(Adjustable adj,
MouseWheelEvent e) {
if (log.isLoggable(PlatformLogger.Level.FINE)) {
if (adj == null) {
log.fine("Assertion (adj != null) failed");
}
}
int increment = 0;
if (e.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
increment = e.getUnitsToScroll() * adj.getUnitIncrement();
}
else if (e.getScrollType() == MouseWheelEvent.WHEEL_BLOCK_SCROLL) {
increment = adj.getBlockIncrement() * e.getWheelRotation();
}
return increment;
}
示例3: scroll
import java.awt.event.MouseWheelEvent; //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4: scroll
import java.awt.event.MouseWheelEvent; //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5: scroll
import java.awt.event.MouseWheelEvent; //导入方法依赖的package包/类
private static void scroll(final JScrollBar scroller, final MouseWheelEvent event) {
if (event.getScrollType() == MouseWheelEvent.WHEEL_UNIT_SCROLL) {
int unitsToScroll = event.getUnitsToScroll();
int direction = unitsToScroll < 0 ? -1 : 1;
if (unitsToScroll != 0) {
int increment = scroller.getUnitIncrement(direction);
int oldValue = scroller.getValue();
int newValue = oldValue + increment * unitsToScroll;
newValue = Math.max(Math.min(newValue, scroller.getMaximum() -
scroller.getVisibleAmount()), scroller.getMinimum());
if (oldValue != newValue) scroller.setValue(newValue);
}
event.consume();
}
}
示例6: mouseWheelMoved
import java.awt.event.MouseWheelEvent; //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);
}
}
示例7: doWheelScroll
import java.awt.event.MouseWheelEvent; //导入方法依赖的package包/类
static boolean doWheelScroll(XVerticalScrollbar vsb,
XHorizontalScrollbar hsb,
MouseWheelEvent e) {
XScrollbar scroll = null;
int wheelRotation;
// Determine which, if any, sb to scroll
if (vsb != null) {
scroll = vsb;
}
else if (hsb != null) {
scroll = hsb;
}
else { // Neither scrollbar is showing
return false;
}
wheelRotation = e.getWheelRotation();
// Check if scroll is necessary
if ((wheelRotation < 0 && scroll.getValue() > scroll.getMinimum()) ||
(wheelRotation > 0 && scroll.getValue() < scroll.getMaximum()) ||
wheelRotation != 0) {
int type = e.getScrollType();
int incr;
if (type == MouseWheelEvent.WHEEL_BLOCK_SCROLL) {
incr = wheelRotation * scroll.getBlockIncrement();
}
else { // type is WHEEL_UNIT_SCROLL
incr = e.getUnitsToScroll() * scroll.getUnitIncrement();
}
scroll.setValue(scroll.getValue() + incr);
return true;
}
return false;
}