有效的方式来创建标签数组 [英] Efficient way to make an array of labels

问题描述

我在做一个棋盘游戏，我需要在我的gui中显示一个15 x 15的数组。我决定去与包含数组的一个元素的个别标签。这意味着我有很多标签。我给每个标签的名称tile_0_0，第一个0是行，第二个0是列。这在qt很容易做。

I'm making a board game and I need to display a 15 x 15 array in my gui. I decided to go with individual labels which contains one element of the array. This means I do have quite a lot of labels. I gave each label the name "tile_0_0" with the first 0 being the row and the second 0 being the column. This was quite easy to do in qt.

然而问题是，我现在不能简单地使用2个forloops访问每个磁贴，因为你不能使用变量名称。 （tile_i_j不存在）。为了解决这个问题，我决定创建一个包含每个标签的数组。但是，由于前面提到的问题，我无法初始化数组的效率。

The problem however is that I ofcourse can't simply use 2 forloops to access each tile since you can't use variables in names. ("tile_i_j" does not exist.) To solve this I decided to make an array which contains each and every label. I however cannot initialise the array efficient because of the earlier mentioned problem.

所以问题是：如何避免写一个巨大的代码块？
当前代码的一小部分：

So the question is: How can I avoid having to write a giant block of code? A small piece of the current code:

    Ui::BoardView *ui = new UI::BoardView; // BoardView is my class
    QLabel* m_boardLbArray[8][8];
    m_boardLbArray[0][0] = ui->tile_0_0;
    m_boardLbArray[0][1] = ui->tile_0_1;
    m_boardLbArray[0][2] = ui->tile_0_2;
    m_boardLbArray[0][3] = ui->tile_0_3;
    m_boardLbArray[0][4] = ui->tile_0_4;
    // ...

注意：对不起，

推荐答案

这听起来像是你创建的你的瓷砖（QLabels）在Qt设计器;实现这一点的一个更清洁的方法是以编程方式创建它们。您可以在Designer中的您想要的位置为表单添加一个网格布局，然后执行：

It sounds like you are creating your tiles(QLabels) in Qt Designer; A cleaner way to achieve this is to create them programatically. You can do something like add a Grid Layout to your form in Designer in the location you want them, and then do:

QGridLayout *layout = ui->gridlayout;
QLabel* m_boardLbArray[8][8];
for(int row=0; row<8; row++)
  for(int col=0; col<8; col++)
  {
    m_boardLbArray[row][col] = new QLabel(this);
    m_boardLbArray[row][col]->setText(tr("This is row %1, col %2")
      .arg(row).arg(col));
    layout->addWidget(m_boardLbArray[row][col], row, col);
  }

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