// ============================================================
//  文档区停靠窗口:CAD 扒图工作区
//  = 独立 cadbt.exe 主窗口的完整布局原样搬入:
//    左 报价工具(CadQuoteWindow,内嵌 Form3 报价三表)
//    中 CAD 查看器(CadViewerWindow,WebView2 网页 CAD)
//  内部用 Smart DockSurface 承载(与独立版 MainForm 相同的停靠结构,
//  内部布局可拖拽);F1/F2/F3 全局消息过滤器随窗口启停。
// ============================================================
using System;
using System.Windows.Forms;

namespace 成套报价软件
{
    /// <summary>CAD 扒图工作区(DockState.Document):报价三表 + 网页 CAD 查看器。</summary>
    public class Cad扒图窗口 : WeifenLuo.WinFormsUI.Docking.DockContent
    {
        private readonly F1MessageFilter _f1Filter = new F1MessageFilter();
        private CadQuoteWindow _quote;
        private CadViewerWindow _viewer;

        /// <summary>内嵌的报价界面(主窗口功能区按钮跨窗口调用用;未创建为 null)。</summary>
        public MyApp.Form3 报价表单
        {
            get { return _quote != null ? _quote.报价表单 : null; }
        }

        public Cad扒图窗口()
        {
            Text = "CAD扒图";
            TabText = "CAD扒图";
            this.BackColor = System.Drawing.Color.White;

            // 与独立版 MainForm.CreateDockWindows_dockSurface1 相同的内部结构
            var dockSurface = new Smart.CustomComponents.DockSurface();
            dockSurface.Dock = DockStyle.Fill;
            Controls.Add(dockSurface);
            dockSurface.EnsureDefaultTheme();     // 必须:Show 前保证有效主题

            _quote = new CadQuoteWindow();
            _quote.CloseButtonVisible = false;
            _quote.TabText = "报价工具";
            _quote.Text = "报价工具";
            _quote.Show(dockSurface, WeifenLuo.WinFormsUI.Docking.DockState.DockLeft);

            _viewer = new CadViewerWindow();
            _viewer.CloseButtonVisible = false;
            _viewer.TabText = "CAD 查看器";
            _viewer.Text = "CAD 查看器";
            _viewer.Show(dockSurface, WeifenLuo.WinFormsUI.Docking.DockState.Document);

            // ★ 全局 F1/F2/F3 过滤器:焦点在任何 WinForms 控件上都触发元件合并
            //   (焦点在网页时由网页端转发,两路都汇聚到 CadBridge.F*Requested)
            Application.AddMessageFilter(_f1Filter);
            FormClosed += (s, e) =>
            {
                Application.RemoveMessageFilter(_f1Filter);
                // 显式关内部窗口:Form3 解绑桥事件、CAD 查看器停 node 服务
                try { if (_quote != null && !_quote.IsDisposed) _quote.Close(); } catch { }
                try { if (_viewer != null && !_viewer.IsDisposed) _viewer.Close(); } catch { }
            };
        }

        /// <summary>把 F1/F2/F3 按键(0x70/0x71/0x72)转成 CadBridge 事件,不拦截按键本身。</summary>
        private class F1MessageFilter : IMessageFilter
        {
            public bool PreFilterMessage(ref Message m)
            {
                const int WM_KEYDOWN = 0x0100;
                if (m.Msg == WM_KEYDOWN && (int)m.WParam == 0x70)
                {
                    try { CadBridge.RaiseF1(); } catch { }
                }
                else if (m.Msg == WM_KEYDOWN && (int)m.WParam == 0x71)
                {
                    try { CadBridge.RaiseF2(); } catch { }
                }
                else if (m.Msg == WM_KEYDOWN && (int)m.WParam == 0x72)
                {
                    try { CadBridge.RaiseF3(); } catch { }
                }
                return false;
            }
        }
    }
}