我注意到,如果我尝试Alert用长消息显示,它往往会被截断(在单词边界).
例:
import javafx.application.Application;
import javafx.scene.control.Alert;
import javafx.scene.control.Alert.AlertType;
import javafx.stage.Stage;
public class AlertTest extends Application {
@Override
public void start(final Stage primaryStage) throws Exception {
new Alert(AlertType.INFORMATION, "this is a pretty long message that "
+ "should not be truncated in this alert window, no matter "
+ "how long it is").showAndWait();
}
public static void main(final String... args) {
launch(args);
}
}
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这只显示"这是一个不应该被截断的非常长的消息".
截断的原因是什么,我该如何避免呢?
我在Linux中使用Oracle JDK 1.8.0_60.
我有一个javafx.scene.image.Image,我想调整它的大小,例如按给定因子缩放它.怎么做(没有转换BufferedImage),有什么选择质量和性能(如插值类型)?
有几个问题看起来很相似,但我找不到任何提出相同问题的人.关键点是输入是一个Image对象(和缩放因子),所需的输出是另一个Image对象.
I'm switching from Wicket 6 to Wicket 8, and AjaxFormComponentUpdatingBehavior doesn't seem to work anymore.
Example page:
public HomePage() {
final Form<Void> form = new Form<>("form");
final TextField<String> txt = new TextField<>("txt", new Model<>());
txt.add(new AjaxFormComponentUpdatingBehavior("onchange") {
private static final long serialVersionUID = 1L;
@Override
protected void onUpdate(final AjaxRequestTarget target) {
System.out.println("update: " + txt.getValue());
}
});
form.add(txt);
add(form);
}
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and corresponding html:
<form wicket:id="form">
<input wicket:id="txt">
</form>
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In Wicket 8.5.0, the onUpdate method never gets called, and there is …
在早期的wicket版本中,需要复选框确保必须由用户检查,否则验证将失败.在wicket 6中不再是这种情况.现在有没有一种标准的方法来实现相同的行为?