Question

WinForms（.NET 2）问题：

当调整父窗体（或面板）的大小时，是否有办法将元素保持在比例距离？

我可以在此范围内使用Graphics.TransformPoints或Graphics.TransformVectors吗？怎么样。 alt text http://lh5.ggpht.com/_1TPOP7DzY1E/S_-QWNbBoqI/AAAAAAAADN8/cNSRTfxLEoI/s800/Capture3.gif

编辑：
TableLayoutPanel 不起作用，因为应该接受叠加元素。

EDIT2：
这是我的代码：

using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
using Microsoft.VisualBasic.PowerPacks;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        List<Point> points;
        List<Point> shapePoints;
        Matrix m;
        float dx, dy;

        public Form1()
        {
            InitializeComponent();

            points = new List<Point>();
            shapePoints = new List<Point>();
            foreach (Control c in this.Controls)
            {
                points.Add(c.Location);
            }

            foreach (Shape s in this.shapeContainer1.Shapes)
            {
                if (s is SimpleShape)
                {
                    shapePoints.Add((s as SimpleShape).Location);
                }
                else if (s is LineShape)
                {
                    shapePoints.Add((s as LineShape).StartPoint);
                }
            }

            m = new Matrix();
            dx = this.Width;
            dy = this.Height;

            // this code will allow(?) do not move this control
            this.shapeContainer1.Dock = DockStyle.Fill;
        }

        protected override void OnSizeChanged(EventArgs e)
        {
            dx = this.Width / dx;
            dy = this.Height / dy;
            ApplyScale(dx, dy);

            dx = this.Width;
            dy = this.Height;

            base.OnSizeChanged(e);
        }

        private void ApplyScale(float dx, float dy)
        {
            //m.Reset();
            m.Scale(dx, dy);

            Point[] locations = points.ToArray();
            m.TransformVectors(locations);

            for (int i = 0; i < this.Controls.Count; i++)
            {
                this.Controls[i].Location = locations[i];
            }

            Point[] shapeLocations = shapePoints.ToArray();
            m.TransformVectors(shapeLocations);

            for (int i = 0; i < this.shapeContainer1.Shapes.Count; i++)
            {
                SimpleShape ss = this.shapeContainer1.Shapes.get_Item(i) 
                                                             as SimpleShape;
                if (ss != null)
                {
                    ss.Location = locations[i];
                    continue;
                }

                LineShape ls = this.shapeContainer1.Shapes.get_Item(i) 
                                                             as LineShape;
                if (ls != null)
                {
                    ls.StartPoint = locations[i];
                    ls.Scale(new SizeF(dx, dy));
                }
            }
        }
    }
}

这就是我得到的：

alt text http://lh4.ggpht.com/_1TPOP7DzY1E/TAOYg9fh5EI/AAAAAAAADOE/IPCdAFw-NFo/s800/Untitled-1.png

Answer 1

这似乎有效：在表单加载中，我为每个要调整大小的控件存储％-left和％-top。我将它存储在Tag-property中以便于访问。然后在form-resize事件中，我只为每个控件计算新的％-left和％-top并将它们定位。

Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    For Each c As Control In Me.Controls
        c.Anchor = AnchorStyles.None
        c.Tag = CInt((100 / Me.Width) * c.Left).ToString & "|" & CInt((100 / Me.Height) * c.Top).ToString
    Next
End Sub

Private Sub Form1_Resize(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Resize
    For Each c As Control In Me.Controls
        c.Location = New Point((Me.Width / 100) * CInt(Split(c.Tag, "|")(0)), (Me.Height / 100) * CInt(Split(c.Tag, "|")(1)))
    Next
End Sub

开始：

alt text http://img52.imageshack.us/img52/4918/33405487.jpg

表单调整大小后： alt text http://img190.imageshack.us/img190/4107/29607470.jpg

Answer 2

在表单上放置一个停靠（或锚定）表格布局面板，并将其所有列/行设置为百分比大小。

然后，您可以将控件停靠在单元格中，并且在调整表格布局时，单元格将保持比例。

修改

对于叠加元素，您是否可以不增加TLP中的列数/行数来容纳？

如果减少列数/行数，然后将子TLP添加到需要更多定位的单元格中？

WinForm调整矩阵？

2 个答案: