How can I make responsive ImageView in FXML (JavaFX) - javafx

Question

I have a scene showing 3 images, and I want each of them to take a third of the width of the scene.
From now, I have made 3 Pane of each 30% of it, it works.
But in those Pane, I can't make my ImageView use only the width of the Pane.
<GridPane GridPane.rowIndex="1" GridPane.columnIndex="0">
<ImageView GridPane.columnIndex="0" fx:id="imgChasseur" preserveRatio="true" onMouseClicked="#handleChoixChasseur"/>
<ImageView GridPane.columnIndex="1" fx:id="imgMage" preserveRatio="true" onMouseClicked="#handleChoixMage"/>
<ImageView GridPane.columnIndex="2" fx:id="imgGuerrier" preserveRatio="true" onMouseClicked="#handleChoixGuerrier"/>
<columnConstraints>
<ColumnConstraints percentWidth="33" />
<ColumnConstraints percentWidth="33" />
<ColumnConstraints percentWidth="33" />
</columnConstraints>
<rowConstraints>
<RowConstraints percentHeight="100" />
</rowConstraints>
</GridPane>
With that sample of code, I can't see the three because they are huge, and with the 'fitWidth="100"' in the 3 ImageView, they are too small.
The way I understand it is that the 'fitWidth' works in pixels, but it's not a responsive way, so it doesn't help me very much...
The GridPane is the only Pane which seems to have percentage values, so I thought it could help me make them responsive, but it doesn't seem so.
Is there a way, regardless of the Pane I should use?

Answer 1

I found a solution :
I added a listener on the surrounding Pane which modifies the fitWidth of my ImageView's in the Controller
paneOriginal.widthProperty().addListener((ChangeListener<? super Number>) new ChangeListener<Number>() {
#Override
public void changed(ObservableValue<? extends Number> arg0, Number arg1, Number arg2) {
imgChasseur.setFitWidth(paneOriginal.getWidth() / 3);
imgMage.setFitWidth(paneOriginal.getWidth() / 3);
imgGuerrier.setFitWidth(paneOriginal.getWidth() / 3);
}
});
With this, I can resize my scene whenever I want and it still fits (and I have to call those three lines at the loading of the FXML one time at least of course.