using System;
using System.Collections.Generic;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace GeoSigma.SigmaDrawerUtil
{
    public class AutoResizeForm
    {
        /// <summary>
        /// 获取windows缩放比
        /// </summary>
        /// <returns>缩放比例</returns>
        public static float GetWindowsZoomRatio(Graphics graphics)
        {
            float dpiX = graphics.DpiX;

            float zoomRatio = 1.0f;

            switch (dpiX)
            {
                case 96f:
                    zoomRatio = 1.0f;
                    break;
                case 120f:
                    zoomRatio = 1.25f;
                    break;
                case 144f:
                    zoomRatio = 1.5f;
                    break;
                case 168f:
                    zoomRatio = 1.75f;
                    break;
                case 192f:
                    zoomRatio = 2.0f;
                    break;
                case 216f:
                    zoomRatio = 2.25f;
                    break;
                case 240f:
                    zoomRatio = 2.5f;
                    break;
                case 264f:
                    zoomRatio = 2.75f;
                    break;
                case 288f:
                    zoomRatio = 3.0f;
                    break;
                case 312f:
                    zoomRatio = 3.25f;
                    break;
                case 336f:
                    zoomRatio = 3.5f;
                    break;
                case 360f:
                    zoomRatio = 3.75f;
                    break;
                case 384f:
                    zoomRatio = 4.0f;
                    break;
                case 408f:
                    zoomRatio = 4.25f;
                    break;
                case 432f:
                    zoomRatio = 4.5f;
                    break;
                case 456f:
                    zoomRatio = 4.75f;
                    break;
                case 480f:
                    zoomRatio = 5.0f;
                    break;
            }

            return zoomRatio;
        }
        public static void ChangeUIByDpi(Control control, float dpixRatio)
        {
            control.SuspendLayout();
            foreach (Control ctrl in control.Controls)
            {
                if (ctrl is Panel)
                {
                    ChangeUIByDpi((Panel)control, dpixRatio);
                }
                else if (ctrl is TreeView treeView)
                {
                    treeView.ItemHeight = (int)(treeView.ItemHeight * dpixRatio);
                    //treeView.Indent = (int)(treeView.Indent * dpixRatio);
                    //ImageList imgs = new ImageList();
                    //imgs.ImageSize = new Size(
                    //    (int)(treeView.ImageList.ImageSize.Width * dpixRatio)
                    //    , (int)(treeView.ImageList.ImageSize.Height * dpixRatio));
                    //foreach (Image img in treeView.ImageList.Images)
                    //{
                    //    Bitmap enlargedImage = new Bitmap(img.Width * 2, img.Height * 2);
                    //    using (Graphics g = Graphics.FromImage(enlargedImage))
                    //    {
                    //        g.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.HighQualityBicubic;
                    //        g.DrawImage(img, new Rectangle(0, 0, img.Width, img.Height));
                    //    }
                    //    imgs.Images.Add(enlargedImage);
                    //}
                    //treeView.ImageList = imgs;
                    //treeView.ImageList.ImageSize = new Size(
                    //    (int)(treeView.ImageList.ImageSize.Width * dpixRatio)
                    //    , (int)(treeView.ImageList.ImageSize.Height * dpixRatio));
                }
                else if (ctrl is ToolStrip toolStrip)
                {
                    toolStrip.Size = new Size(toolStrip.Size.Width
                        , (int)(toolStrip.Size.Height * dpixRatio));
                }
            }
            control.ResumeLayout();
        }
        public static void ChangeUIFontByDpi(Control control, float dpixRatio)
        {
            control.SuspendLayout();
            foreach (Control ctrl in control.Controls)
            {
                
                //else
                {
                    float fsize = (float)(ctrl.Font.Size * (float)dpixRatio);
                    if (dpixRatio == 0)
                    {
                        fsize = ctrl.Font.Size;
                    }

                    ctrl.Font = new Font(ctrl.Font.Name, fsize, ctrl.Font.Style);
                    //if (bNonZoomsys) // 非缩放状态，要自己定义窗口和控件大小
                    //{
                    if (ctrl.Anchor != AnchorStyles.None)
                    {
                        ctrl.Bounds = new Rectangle((int)(ctrl.Location.X), (int)(ctrl.Location.Y),
                            (int)(ctrl.Width * dpixRatio), (int)(ctrl.Height * dpixRatio));
                    }
                    else
                    {
                        ctrl.Bounds = new Rectangle((int)(ctrl.Location.X * dpixRatio), (int)(ctrl.Location.Y * dpixRatio),
                        (int)(ctrl.Width * dpixRatio), (int)(ctrl.Height * dpixRatio));
                    }
                    //}
                }
                if (ctrl.Controls.Count > 0)
                {
                    ChangeUIFontByDpi((Panel)control, dpixRatio);
                }
            }
            control.ResumeLayout();
        }
        public static Image ImageBicubicResize(Image sourceImage, float ratio)
        {
            int nNewWidth = (int)(sourceImage.Size.Width * ratio);
            int nNewHeight = (int)(sourceImage.Size.Height * ratio);
            Bitmap resizedImage = new Bitmap(nNewWidth, nNewHeight);

            using (Graphics graphics = Graphics.FromImage(resizedImage))
            {
                graphics.InterpolationMode = InterpolationMode.Bicubic;
                graphics.DrawImage(sourceImage, 0, 0, nNewWidth, nNewHeight);
            }

            return resizedImage;
        }

        public static void AutoScaleControl(Control ctl, float ratio)
        {
            foreach (Control c in ctl.Controls)
            {
                c.Bounds = new Rectangle((int)(c.Location.X * ratio), (int)(c.Location.Y * ratio),
                    (int)(c.Width * ratio), (int)(c.Height * ratio));
                // 设置字体
                //c.Font = new Font(c.Font.Name, (int)(c.Font.Size * ratio), c.Font.Style);
                //}
                //c.Location = new Point((int)((ctrLeft0) * ratio), (int)((ctrTop0) * ratio));
                //c.Width = (int)(ctrWidth0 * ratio);     // 只与最初的大小相关，所以不能与现在的宽度相乘 (int)(c.Width * w);
                //c.Height = (int)(ctrHeight0 * ratio);   //
                //**放在这里，是先缩放控件本身，后缩放控件的子控件
                if (c.Controls.Count > 0)
                {
                    AutoScaleControl(c, ratio); // 窗体内其余控件还可能嵌套控件(比如panel),要单独抽出,因为要递归调用
                }

                if (ctl is DataGridView)
                {
                    DataGridView dgv = ctl as DataGridView;
                    Cursor.Current = Cursors.WaitCursor;

                    int widths = 0;
                    for (int i = 0; i < dgv.Columns.Count; i++)
                    {
                        dgv.AutoResizeColumn(i, DataGridViewAutoSizeColumnMode.AllCells);  // 自动调整列宽  
                        widths += dgv.Columns[i].Width;   // 计算调整列后单元列的宽度和                       
                    }
                    if (widths >= ctl.Size.Width)  // 如果调整列的宽度大于设定列宽  
                        dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.DisplayedCells;  // 调整列的模式 自动  
                    else
                        dgv.AutoSizeColumnsMode = DataGridViewAutoSizeColumnsMode.Fill;  // 如果小于 则填充  

                    Cursor.Current = Cursors.Default;
                }
            }
        }
    }
}