using System.Runtime.InteropServices;

using Sai.Toolkit.Revit.Helpers;

namespace Sai.Toolkit.Revit.UserControls;

public class StatusBarAssist
{

    private IntPtr statusBar = IntPtr.Zero;

    protected StatusBarAssist()
    {
        // 找到状态栏，这样我们就可以添加信息了。
        var revitHandle = System.Diagnostics.Process.GetCurrentProcess().MainWindowHandle;
        if (revitHandle != IntPtr.Zero)
        {
            statusBar = KeyIntPtrHelper.FindWindowEx(revitHandle, IntPtr.Zero, "msctls_statusbar32", string.Empty);
        }
    }

    /// <summary>
    /// 如果状态栏有有效句柄，则设置状态栏的值。
    /// </summary>
    /// <param name="msg">The message.</param>
    public void Set(string msg)
    {
        if (statusBar != IntPtr.Zero)
        {
            KeyIntPtrHelper.SetWindowText(statusBar, msg);
        }
    }

    /// <summary>
    /// 创建一个新的 StatusBarAssist。
    /// </summary>
    /// <returns>The StatusBarAssist.</returns>
    public static StatusBarAssist Create()
    {
        return new StatusBarAssist();
    }
}