问Javafx儿童溢出的FlowPane

EN

public class MainWindowController {

    private int sizeOfOneGame = 100; //In pixel

    //Space between the frame of the Pane that holds all games and the games
    private int[] paddingAroundGames = {30, 30, 30, 30}; //Top, Right, Bottom, Left

    //Space between two games
    private int[] gapBetweenGames = {10, 10}; //X, Y

    @FXML
    FlowPane flowPaneGames;

    public void initialize(){

        //Sets space between two games in the flowPane
        flowPaneGames.setHgap(gapBetweenGames[0]);
        flowPaneGames.setVgap(gapBetweenGames[1]);

        //Sets space between all games and the border of the flowPane
        flowPaneGames.setPadding(new Insets(paddingAroundGames[0], paddingAroundGames[1], paddingAroundGames[2], paddingAroundGames[3]));

        //Draws one frame around the flowPane
        flowPaneGames.setStyle("-fx-border-color: black");

        //Aligns the panes to the center
        flowPaneGames.setAlignment(Pos.BASELINE_CENTER);

        //Adds listeners to the width and height of the flowPane holding the games -> Adjusts shown Panes on size change
        flowPaneGames.widthProperty().addListener(e -> flowPaneGamesSizeChanged());
        flowPaneGames.heightProperty().addListener(e -> flowPaneGamesSizeChanged());

    }

    private void flowPaneGamesSizeChanged(){

        //TODO: Sometimes some panes are bigger than the flowPane

        //Available space for games x and y
        int totalSpaceX = (int) (flowPaneGames.getWidth() - paddingAroundGames[1] - paddingAroundGames[3] + gapBetweenGames[0]);
        int totalSpaceY = (int) (flowPaneGames.getHeight() - paddingAroundGames[0] - paddingAroundGames[2] + gapBetweenGames[1]);

        int totatlSizeOfOneGameX = sizeOfOneGame + gapBetweenGames[0];
        int totatlSizeOfOneGameY = sizeOfOneGame + gapBetweenGames[1];

        int totalSpaceForGamesX = (int) (((double) totalSpaceX) / ((double) totatlSizeOfOneGameX));
        int totalSpaceForGamesY = (int) (((double) totalSpaceY) / ((double) totatlSizeOfOneGameY));

        //Total amount of games
        int totalSpaceForGames = totalSpaceForGamesX * totalSpaceForGamesY;

        System.out.println("Width: " + flowPaneGames.getWidth());
        System.out.println("Height: " + flowPaneGames.getHeight());

        //We have more games shown that there should be we remove the last ones
        while (flowPaneGames.getChildren().size() > totalSpaceForGames) {

            //We remove the last game
            flowPaneGames.getChildren().remove(flowPaneGames.getChildren().size() - 1);
        }

        //While we have less games shown that there should be we add new ones
        while (flowPaneGames.getChildren().size() < totalSpaceForGames) {

            flowPaneGames.getChildren().add(generateNewPane());

        }
    }

    private Pane generateNewPane(){

        //Generates a new pane and returns it
        Pane pane = new Pane();
        pane.setPrefSize(sizeOfOneGame, sizeOfOneGame);
        pane.setStyle("-fx-border-color: black");

        return pane;
    }
}