Question

我需要创建可以动态变化的棋盘游戏它的大小可以是5x5,6x6,7x7或8x8。

我正在将JavaFX与用于GUI的NetBeans和场景构建器混为一谈。

当用户选择大于5x5的电路板尺寸时，会发生这种情况：
enter image description here

这是动态添加单元格之前场景构建器上的模板：
enter image description here

对于GridPane中的每个单元格，我正在添加单元格编号的StackPane +标签：

@FXML
GridPane boardGame;

public void CreateBoard()
    {
       int boardSize = m_Engine.GetBoard().GetBoardSize();
       int num = boardSize * boardSize;
       int maxColumns = m_Engine.GetNumOfCols();
       int maxRows = m_Engine.GetNumOfRows();

       for(int row = 0; row < maxRows ; row++)
       {
             for(int col = maxColumns - 1; col >= 0 ; col--)
             {
                StackPane stackPane = new StackPane();
                stackPane.setPrefSize(150.0, 200.0);
                stackPane.getChildren().add(new Label(String.valueOf(num)));
                boardGame.add(stackPane, col, row);
                num--;
            }
       }
       boardGame.setGridLinesVisible(true);
       boardGame.autosize();
    }

问题是GridPane上堆栈窗格的大小越来越小我试图将它们设置为相同的最小和最大尺寸，但它们仍然没有变小。

我在网上搜索但是并没有像我一样发现同样的问题我的唯一类似问题在这里找到：
Dynamically add elements to a fixed-size GridPane in JavaFX

但他的建议是使用TilePane并且我需要使用GridPane，因为这是一个棋盘游戏，当我需要执行任务时更容易使用GridPane，例如在row = 1和column = 2上获取单元格

修改
我从FXML中删除了GridPane并在Controller上手动创建了它，但现在它打印出一块空白板：

@FXML
GridPane boardGame;
public void CreateBoard()
    {
       int boardSize = m_Engine.GetBoard().GetBoardSize();
       int num = boardSize * boardSize;
       int maxColumns = m_Engine.GetNumOfCols();
       int maxRows = m_Engine.GetNumOfRows();

       boardGame = new GridPane();
       boardGame.setAlignment(Pos.CENTER);
       Collection<StackPane> stackPanes = new ArrayList<StackPane>();
       for(int row = 0; row < maxRows ; row++)
       {
             for(int col = maxColumns - 1; col >= 0 ; col--)
             {
                StackPane stackPane = new StackPane();
                stackPane.setPrefSize(150.0, 200.0);
                stackPane.getChildren().add(new Label(String.valueOf(num)));
                boardGame.add(stackPane, col, row);

                stackPanes.add(stackPane);
                num--;
            }
       }
       this.buildGridPane(boardSize);
       boardGame.setGridLinesVisible(true);
       boardGame.autosize();

       boardGamePane.getChildren().addAll(stackPanes);
    }

    public void buildGridPane(int i_NumOfRowsAndColumns)
    {
        RowConstraints rowConstraint;
        ColumnConstraints columnConstraint;

        for(int index = 0 ; index < i_NumOfRowsAndColumns; index++)
        {
            rowConstraint = new RowConstraints(3, Control.USE_COMPUTED_SIZE, Double.POSITIVE_INFINITY, Priority.ALWAYS, VPos.CENTER, true);
            boardGame.getRowConstraints().add(rowConstraint);
            columnConstraint = new ColumnConstraints(3, Control.USE_COMPUTED_SIZE, Double.POSITIVE_INFINITY, Priority.ALWAYS, HPos.CENTER, true);
            boardGame.getColumnConstraints().add(columnConstraint);
        }
    }

Answer 1

使用评论中的说明稍微更改了您的代码。 HTH。

GridPane boardGame;
public void CreateBoard()
{
   int boardSize = m_Engine.GetBoard().GetBoardSize();
   int num = boardSize * boardSize;
   int maxColumns = m_Engine.GetNumOfCols();
   int maxRows = m_Engine.GetNumOfRows();

   boardGame = new GridPane();
   boardGame.setAlignment(Pos.CENTER);
   Collection<StackPane> stackPanes = new ArrayList<StackPane>();
   for(int row = 0; row < maxRows ; row++)
   {
         for(int col = maxColumns - 1; col >= 0 ; col--)
         {
            StackPane stackPane = new StackPane();

            // To occupy fixed space set the max and min size of
            // stackpanes. 
            // stackPane.setPrefSize(150.0, 200.0);
            stackPane.setMaxSize(100.0, 100.0);
            stackPane.setMinSize(100.0, 100.0);

            stackPane.getChildren().add(new Label(String.valueOf(num)));
            boardGame.add(stackPane, col, row);

            stackPanes.add(stackPane);
            num--;
        }
   }
   // No need to add column and row constraints if you want just a uniform 
   // rigid grid view. So commented the line below.

   // this.buildGridPane(boardSize);
   boardGame.setGridLinesVisible(true);
   boardGame.autosize();

   // Here you are adding all stackpanes, those are added to the gridpane 'boardGame' 
   // before, to the another gridpane with name 'boardGamePane'. So all stackpanes are moved
   // to this second gridpane. This is the reason of blank board you are seeing.
   // So commenting this out also.

   // boardGamePane.getChildren().addAll(stackPanes);
}

如何动态添加元素后维护GridPane的固定大小

1 个答案: