Java 类com.intellij.openapi.ui.NullableComponent 实例源码

项目：intellij-ce-playground 文件：MouseDragHelper.java

private boolean canStartDragging(MouseEvent me) {
  if (me.getButton() != MouseEvent.BUTTON1) return false;
  if (!myDragComponent.isShowing()) return false;

  Component component = me.getComponent();
  if (NullableComponent.Check.isNullOrHidden(component)) return false;
  final Point dragComponentPoint = SwingUtilities.convertPoint(me.getComponent(), me.getPoint(), myDragComponent);
  return canStartDragging(myDragComponent, dragComponentPoint);
}

项目：intellij-ce-playground 文件：OptionsEditor.java

@Override
public boolean isNull() {
  final boolean superNull = super.isNull();
  if (superNull) return superNull;

  if (myMaster == null) {
    return NullableComponent.Check.isNull(mySimpleContent);
  } else {
    return NullableComponent.Check.isNull(myMaster);
  }
}

项目：tools-idea 文件：MouseDragHelper.java

private boolean canStartDragging(MouseEvent me) {
  if (me.getButton() != MouseEvent.BUTTON1) return false;
  if (!myDragComponent.isShowing()) return false;

  Component component = me.getComponent();
  if (NullableComponent.Check.isNullOrHidden(component)) return false;
  final Point dragComponentPoint = SwingUtilities.convertPoint(me.getComponent(), me.getPoint(), myDragComponent);
  return canStartDragging(myDragComponent, dragComponentPoint);
}

项目：consulo 文件：MouseDragHelper.java

private boolean canStartDragging(MouseEvent me) {
  if (me.getButton() != MouseEvent.BUTTON1) return false;
  if (!myDragComponent.isShowing()) return false;

  Component component = me.getComponent();
  if (NullableComponent.Check.isNullOrHidden(component)) return false;
  final Point dragComponentPoint = SwingUtilities.convertPoint(me.getComponent(), me.getPoint(), myDragComponent);
  return canStartDragging(myDragComponent, dragComponentPoint);
}

项目：consulo 文件：OptionsEditor.java

@Override
public boolean isNull() {
  final boolean superNull = super.isNull();
  if (superNull) return superNull;
  return NullableComponent.Check.isNull(mySimpleContent);
}