来源：自学PHP网 时间：2015-04-14 14:51 作者： 阅读:次
[导读] 关键是其中的逻辑结构设计：自定义的控件很简单：[html] ?xml version=1.0 encoding=UTF-8? ?import javafx.scene.control.*? !-- fx:root is used primarily when creating custom cont......
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关键是其中的逻辑结构设计：自定义的控件很简单：
[html]
<?xml version="1.0" encoding="UTF-8"?>
<?import javafx.scene.control.*?>
<!-- fx:root is used primarily when creating custom controls -->
<fx:root type="javafx.scene.layout.VBox" xmlns:fx="http://javafx.com/fxml"
stylesheets="customcontrol/customcontrol.css" styleClass="v-box">
<TextField fx:id="textField"/>
<Button fx:id="button" text="Click Me" onAction="#doSomething"/>
</fx:root>
其中使用的CSS样式表：
[css]
.v-box {
-fx-spacing: 5;
}
.text-field {
-fx-highlight-fill: linear-gradient(orange, orangered);
}
Package-info：
[java]
/**
* An implementation of custom control.
*
* @author HAN
*/
package customcontrol;
模型建立（充当Controller和Root）：
[java]
package customcontrol;
import java.io.IOException;
import javafx.beans.property.StringProperty;
import javafx.fxml.FXML;
import javafx.fxml.FXMLLoader;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.layout.VBox;
/**
* For custom control creation in XML, it is assured by the associated use of
* <code>fxmlLoader.setController(this);</code> and
* <code>fxmlLoader.setRoot(this);</code>
*
* @author HAN
*
*/
public class CustomControl extends VBox {
@FXML
private TextField textField;
@FXML
private Button button;
public CustomControl() {
FXMLLoader fxmlLoader = new FXMLLoader();
fxmlLoader.setController(this);
fxmlLoader.setRoot(this);
fxmlLoader.setLocation(CustomControl.class.getResource("View.xml"));
try {
fxmlLoader.load();
} catch (IOException e) {
e.printStackTrace();
}
}
public final String getTextFieldText() {
return textFieldTextProperty().get();
}
public final void setTextFieldText(String text) {
textFieldTextProperty().set(text);
}
public StringProperty textFieldTextProperty() {
return textField.textProperty();
}
public final String getButtonText() {
return buttonTextProperty().get();
}
public final void setButtonText(String text) {
buttonTextProperty().set(text);
}
public StringProperty buttonTextProperty() {
return button.textProperty();
}
@FXML
private void doSomething() {
System.out.println("The button was clicked!");
}
}
在Java中的使用样例：
1.若此样例不使用自定义的CSS样式表，则默认为开发者定义的风格：
[java]
package customcontrol;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class UseInJava extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) throws Exception {
CustomControl customControl = new CustomControl();
customControl.setTextFieldText("Hello!");
customControl.setButtonText("MyButton");
customControl.getStyleClass().add("custom-control");
Scene scene = new Scene(customControl);
// scene.getStylesheets().add(
// UseInJava.class.getResource("useinjava.css").toExternalForm());
stage.setScene(scene);
stage.setTitle("Custom Control");
stage.setWidth(300);
stage.setHeight(200);
stage.show();
}
}
2. 然而强大之处在于用户可以Override开发者定义的控件内部各自Region的风格：
[java]
package customcontrol;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.stage.Stage;
public class UseInJava extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage stage) throws Exception {
CustomControl customControl = new CustomControl();
customControl.setTextFieldText("Hello!");
customControl.setButtonText("MyButton");
customControl.getStyleClass().add("custom-control");
Scene scene = new Scene(customControl);
scene.getStylesheets().add(
UseInJava.class.getResource("useinjava.css").toExternalForm());
stage.setScene(scene);
stage.setTitle("Custom Control");
stage.setWidth(300);
stage.setHeight(200);
stage.show();
}
}
[css]
.custom-control .button {
-fx-base: #99bcfd;
}
.custom-control .text-field {
-fx-highlight-fill: linear-gradient(greenyellow, limegreen);
}
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