Prolem with the hgrow constraint on a Column in a GridPane

Question

Hello,
I am displaying the following controls in a GridPane.
1. In row 1, a Label, a TextField, and a Button
2. In row 2, A Label
3. In row 3, a TextArea
4. In row 4, a Label
The complete program is at the end.
Question #1:
When I set the hgrow to ALWAYS for the first column through the statusBar Label control, the first column does not grow. Is it a bug or am I missing something in the JavaDoc to explain this behavior? When I set the hgrow constraint to ALWSY on nameLbl, it works.
Question #2:
Why is the nameLbl not getting enough width to display it completely?
Thanks
Kishori
// GridPaneForm.java
package test;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Priority;
import javafx.stage.Stage;
public class GridPaneForm extends Application {
     public static void main(String[] args) {
          Application.launch(args);
     public void start(Stage stage) {
          // A Label and a TextField
          Label nameLbl = new Label("Name:");
          TextField nameFld = new TextField();
          // A Label and a TextArea
          Label descLbl = new Label("Description:");     
          TextArea descText = new TextArea();
          descText.setPrefColumnCount(20);
          descText.setPrefRowCount(5);
          // Two buttons
          Button okBtn = new Button("OK");
          Button cancelBtn = new Button("Cancel");
          // A Label used as a status bar
          Label statusBar = new Label("Status: Ready");
          statusBar.setStyle("-fx-background-color: lavender;" +
                             "-fx-font-size: 7pt;" +
                             "-fx-padding: 10 0 0 0;");
          // Create a GridPane and set its background color to lightgray
          GridPane root = new GridPane();
          root.setStyle("-fx-background-color: lightgray;");
          // Add children to the GridPane
          root.add(nameLbl, 1, 1, 1, 1);   // (c1, r1, colspan=1, rowspan=1)
          root.add(nameFld, 2, 1, 1, 1);   // (c2, r1, colspan=1, rowspan=1)
          root.add(descLbl, 1, 2, 3, 1);   // (c1, r2, colspan=3, rowspan=1)
          root.add(descText, 1, 3, 2, 1);  // (c1, r3, colspan=2, rowspan=1)
          root.add(okBtn, 3, 1, 1, 1);     // (c3, r1, colspan=1, rowspan=1)
          root.add(cancelBtn, 3, 2, 1, 1); // (c3, r2, colspan=1, rowspan=1)
          root.add(statusBar, 1, 4, 3, 1); // (c1, r4, colspan=3, rowspan=1)
          /* Set constraints for children to customize their resizing behavior */
          // The max width of the OK button should be big enough,
          // so it can fill the width of its cell
          okBtn.setMaxWidth(Double.MAX_VALUE);
          // The name field in the first row should grow horizontally
          //GridPane.setHgrow(nameFld, Priority.ALWAYS);
          // The description field in the third row should grow vertically
          GridPane.setVgrow(descText, Priority.ALWAYS);
          // The status bar in the last should fill its cell
                GridPane.setHgrow(statusBar, Priority.ALWAYS);
          statusBar.setMaxWidth(Double.MAX_VALUE);
          Scene scene = new Scene(root);
          stage.setScene(scene);
          stage.setTitle("Creating Forms Using a GridPane");
          stage.show();
}

Answer 1

Hello,
I am displaying the following controls in a GridPane.
1. In row 1, a Label, a TextField, and a Button
2. In row 2, A Label
3. In row 3, a TextArea
4. In row 4, a Label
The complete program is at the end.
Question #1:
When I set the hgrow to ALWAYS for the first column through the statusBar Label control, the first column does not grow. Is it a bug or am I missing something in the JavaDoc to explain this behavior? When I set the hgrow constraint to ALWSY on nameLbl, it works.
Question #2:
Why is the nameLbl not getting enough width to display it completely?
Thanks
Kishori
// GridPaneForm.java
package test;
import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.control.TextArea;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.Priority;
import javafx.stage.Stage;
public class GridPaneForm extends Application {
     public static void main(String[] args) {
          Application.launch(args);
     public void start(Stage stage) {
          // A Label and a TextField
          Label nameLbl = new Label("Name:");
          TextField nameFld = new TextField();
          // A Label and a TextArea
          Label descLbl = new Label("Description:");     
          TextArea descText = new TextArea();
          descText.setPrefColumnCount(20);
          descText.setPrefRowCount(5);
          // Two buttons
          Button okBtn = new Button("OK");
          Button cancelBtn = new Button("Cancel");
          // A Label used as a status bar
          Label statusBar = new Label("Status: Ready");
          statusBar.setStyle("-fx-background-color: lavender;" +
                             "-fx-font-size: 7pt;" +
                             "-fx-padding: 10 0 0 0;");
          // Create a GridPane and set its background color to lightgray
          GridPane root = new GridPane();
          root.setStyle("-fx-background-color: lightgray;");
          // Add children to the GridPane
          root.add(nameLbl, 1, 1, 1, 1);   // (c1, r1, colspan=1, rowspan=1)
          root.add(nameFld, 2, 1, 1, 1);   // (c2, r1, colspan=1, rowspan=1)
          root.add(descLbl, 1, 2, 3, 1);   // (c1, r2, colspan=3, rowspan=1)
          root.add(descText, 1, 3, 2, 1);  // (c1, r3, colspan=2, rowspan=1)
          root.add(okBtn, 3, 1, 1, 1);     // (c3, r1, colspan=1, rowspan=1)
          root.add(cancelBtn, 3, 2, 1, 1); // (c3, r2, colspan=1, rowspan=1)
          root.add(statusBar, 1, 4, 3, 1); // (c1, r4, colspan=3, rowspan=1)
          /* Set constraints for children to customize their resizing behavior */
          // The max width of the OK button should be big enough,
          // so it can fill the width of its cell
          okBtn.setMaxWidth(Double.MAX_VALUE);
          // The name field in the first row should grow horizontally
          //GridPane.setHgrow(nameFld, Priority.ALWAYS);
          // The description field in the third row should grow vertically
          GridPane.setVgrow(descText, Priority.ALWAYS);
          // The status bar in the last should fill its cell
                GridPane.setHgrow(statusBar, Priority.ALWAYS);
          statusBar.setMaxWidth(Double.MAX_VALUE);
          Scene scene = new Scene(root);
          stage.setScene(scene);
          stage.setTitle("Creating Forms Using a GridPane");
          stage.show();
}