139 lines
4.7 KiB
C#
139 lines
4.7 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Drawing;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace WindowsFormsApp1
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{
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internal class WindowAutoResizer // 窗口大小自适应类
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{
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private readonly Form _form;
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private float originalWidth;
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private float originalHeight;
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/// <summary>
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/// 初始化窗口自适应调整器
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/// </summary>
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/// <param name="form">要自适应的窗体</param>
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public WindowAutoResizer(Form form)
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{
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_form = form ?? throw new ArgumentNullException(nameof(form));
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Initialize();
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}
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private void Initialize()
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{
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originalWidth = _form.Width;
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originalHeight = _form.Height;
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// 记录初始控件位置和大小
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SetTag(_form);
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// 注册窗口大小改变事件
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_form.Resize += async (sender, e) => await OnFormResizeAsync();
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}
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/// <summary>
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/// 记录控件初始位置和大小信息
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/// 递归所有控件，存储宽、高、位置等到Tag
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/// </summary>
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/// <param name="container">容器控件</param>
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private void SetTag(Control container)
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{
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foreach (Control control in container.Controls) // 遍历容器（cons）所有子控件。
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{
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control.Tag = $"{control.Width}:{control.Height}:{control.Left}:{control.Top}:{control.Font.Size}";
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if (control.Controls.Count > 0)
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{
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SetTag(control);
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}
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}
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}
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/// <summary>
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/// 窗体大小改变时异步调整控件
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/// </summary>
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private async Task OnFormResizeAsync()
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{
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float widthRatio = _form.Width / originalWidth;
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float heightRatio = _form.Height / originalHeight;
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await Task.Run(() => AdjustControls(widthRatio, heightRatio, _form));
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}
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/// <summary>
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/// 根据比例调整控件大小和位置
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/// </summary>
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/// <param name="widthRatio">宽度比例</param>
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/// <param name="heightRatio">高度比例</param>
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/// <param name="container">容器控件</param>
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private void AdjustControls(float widthRatio, float heightRatio, Control container)
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{
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if (container.InvokeRequired) // 检查是否在UI线程
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{
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container.Invoke(new Action(() => AdjustControls(widthRatio, heightRatio, container)));
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return;
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}
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// 暂停控件的布局逻辑，直到所有更改完成后再一次性重新计算布局
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container.SuspendLayout();
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try
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{
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// 拷贝一份，避免实时读取时被修改造成异常
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var controlsCopy = container.Controls.Cast<Control>().ToArray();
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foreach (Control control in controlsCopy)
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{
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if (control.Tag == null) continue;
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string[] tagValues = control.Tag.ToString().Split(':');
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if (tagValues.Length != 5) continue;
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control.Width = (int)(float.Parse(tagValues[0]) * widthRatio);
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control.Height = (int)(float.Parse(tagValues[1]) * heightRatio);
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control.Left = (int)(float.Parse(tagValues[2]) * widthRatio);
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control.Top = (int)(float.Parse(tagValues[3]) * heightRatio);
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float newFontSize = float.Parse(tagValues[4]) * heightRatio;
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if (Math.Abs(control.Font.Size - newFontSize) > float.Epsilon)
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{
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control.Font = new Font(control.Font.Name, newFontSize, control.Font.Style);
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}
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// 如果当前控件有子控件，递归调整子控件
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if (control.HasChildren)
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{
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AdjustControls(widthRatio, heightRatio, control);
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}
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}
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}
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finally
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{
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// 恢复控件的布局逻辑，并强制立即重新计算布局。
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container.ResumeLayout(true);
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}
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}
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/// <summary>
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/// 重新初始化控件位置和大小信息（当动态添加控件后调用）
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/// </summary>
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public void RefreshTags()
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{
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SetTag(_form);
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}
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private void AddNewControl()
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{
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//var newButton = new Button { Text = "New Button", ... };
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//this.Controls.Add(newButton);
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//resizer.RefreshTags(); // 重新记录所有控件信息
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}
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}
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}
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