在我的扫雷游戏中,我需要动态创建控件,以便在easy - medium - hard之间切换。让我们说,为了问题,硬包含100个按钮。
这就是我创建它们的方式:
this.SuspendLayout(); //Creating so many things that I assume it would be faster to suspend and resume.
foreach (string i in playingField)
{
Button button = new Button();
button.Name = i;
button.FlatStyle = System.Windows.Forms.FlatStyle.Popup;
button.Margin = new Padding(0);
button.TabIndex = 0;
button.Location = new System.Drawing.Point(3, 3);
button.Size = new System.Drawing.Size(25, 25);
button.BackgroundImage = blockImage; //##//
button.MouseDown += new System.Windows.Forms.MouseEventHandler(this.GetUnderSide);
button.UseVisualStyleBackColor = false;
minesPanel.Controls.Add(button); //Adding the controls to the container
}
this.ResumeLayout(); //Refer to above. Correct me if I'm wrong please.
正如您所看到的,我正在通过for循环创建所有控件,然后添加它们。它导致每个按钮一次被绘制一次。我也尝试了name.Controls.AddRange(arrayButtons)
,但仍然导致了同样的问题。个人绘画。
我需要的是一种创建所有项目的方法,然后将它们全部绘制完毕,就像使用DoubleBuffered
绘制单个位图一样,但是唉,这也不起作用。
此外,我试过这个:
protected override CreateParams CreateParams
{
get
{
// Activate double buffering at the form level. All child controls will be double buffered as well.
CreateParams cp = base.CreateParams;
cp.ExStyle |= 0x02000000; // WS_EX_COMPOSITED
return cp;
}
}
哪种作品。它仅适用于应用程序启动。但是,鉴于我将在运行时更改网格大小并添加更多控件,这不是一个可行的选择。
我被告知它就像使用Graphics
类中的方法一样简单。问题是,我不知道从哪里开始。
如果有人可以提供一些帮助来同时绘制我的所有控件,那就太棒了。
答案 0 :(得分:7)
可悲的是,WinForms不喜欢有太多的控件,特别是当你进入数百个时。由于每个控件都会向窗口发送自己的绘制消息,因此您永远不能同时拥有每个控件绘制。
我认为接近像MineSweeper这样的游戏板的最佳方法是使用一个控件并绘制按钮网格。
简单的矿井类:
public class Mine {
public Rectangle Bounds { get; set; }
public bool IsBomb { get; set; }
public bool IsRevealed { get; set; }
}
然后创建一个新控件,从Panel控件继承并设置DoubleBuffered属性以防止任何闪烁:
public class MineSweeperControl : Panel {
private int columns = 16;
private int rows = 12;
private Mine[,] mines;
public MineSweeperControl() {
this.DoubleBuffered = true;
this.ResizeRedraw = true;
// initialize mine field:
mines = new Mine[columns, rows];
for (int y = 0; y < rows; ++y) {
for (int x = 0; x < columns; ++x) {
mines[x, y] = new Mine();
}
}
}
// adjust each column and row to fit entire client area:
protected override void OnResize(EventArgs e) {
int top = 0;
for (int y = 0; y < rows; ++y) {
int left = 0;
int height = (this.ClientSize.Height - top) / (rows - y);
for (int x = 0; x < columns; ++x) {
int width = (this.ClientSize.Width - left) / (columns - x);
mines[x, y].Bounds = new Rectangle(left, top, width, height);
left += width;
}
top += height;
}
base.OnResize(e);
}
protected override void OnPaint(PaintEventArgs e) {
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
for (int y = 0; y < rows; ++y) {
for (int x = 0; x < columns; ++x) {
if (mines[x, y].IsRevealed) {
e.Graphics.FillRectangle(Brushes.DarkGray, mines[x, y].Bounds);
} else {
ControlPaint.DrawButton(e.Graphics, mines[x, y].Bounds,
ButtonState.Normal);
}
}
}
base.OnPaint(e);
}
// determine which button the user pressed:
protected override void OnMouseDown(MouseEventArgs e) {
for (int y = 0; y < rows; ++y) {
for (int x = 0; x < columns; ++x) {
if (mines[x, y].Bounds.Contains(e.Location)) {
mines[x, y].IsRevealed = true;
this.Invalidate();
MessageBox.Show(
string.Format("You pressed on button ({0}, {1})",
x.ToString(), y.ToString())
);
}
}
}
base.OnMouseDown(e);
}
}
答案 1 :(得分:2)
隐藏minesPanel
,绘制按钮,显示minesPanel
?