using HotelPms.Share.Windows.GraphicsApi;
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using HotelPms.Share.Windows.Util;
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//using NetTopologySuite.Operation.Buffer;
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using Org.BouncyCastle.Bcpg;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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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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//using Topology = NetTopologySuite.Geometries;
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namespace HotelPms.SourceFactory
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{
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public partial class FormGdi : Form
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{
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// 存储当鼠标在PictureBox中左键按下的位置，相对于PictureBox左上角坐标点的位置来讲。
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private Point mouseDownPoint = new Point();
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private bool isDown = false;
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Region r = new System.Drawing.Region();
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PointF start = PointF.Empty;
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PointF continues = PointF.Empty;
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PointF end = PointF.Empty;
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int isDrawing = 0;
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List<List<PointF>> drawpaths = new List<List<PointF>>();
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List<PointF> drawpathtemp = new List<PointF>();
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public FormGdi()
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{
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InitializeComponent();
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}
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private void button1_Click(object sender, EventArgs e)
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{
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Rectangle r1 = new Rectangle(panel1.Location, panel1.Size);
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Rectangle r2 = new Rectangle(panel2.Location, panel2.Size);
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textBox2.Text = $"({r1.Left}, {r1.Top})-({r1.Right},{r1.Bottom})";
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textBox3.Text = $"({r2.Left}, {r2.Top})-({r2.Right},{r2.Bottom})";
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textBox1.Text = Overlap.RectRect(r1, r2) ? "相交" : "分离";
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textBox5.Text = $"!({r1.Right} < {r2.Left} || {r1.Bottom} < {r2.Top} || {r2.Right} < {r1.Left} || {r2.Bottom} < {r1.Top})";
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}
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private void button2_Click(object sender, EventArgs e)
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{
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Rectangle r1 = new Rectangle(panel1.Location, panel1.Size);
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Rectangle r2 = new Rectangle(panel2.Location, panel2.Size);
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textBox2.Text = $"({r1.Left}, {r1.Top})-({r1.Right},{r1.Bottom})";
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textBox3.Text = $"({r2.Left}, {r2.Top})-({r2.Right},{r2.Bottom})";
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textBox1.Text = Overlap.RectRect2(r1, r2) ? "相交" : "分离";
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textBox5.Text = string.Empty;
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}
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private void panel2_MouseDown(object sender, MouseEventArgs e)
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{
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isDown = true;
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if (e.Button == System.Windows.Forms.MouseButtons.Left)
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{
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mouseDownPoint = e.Location;
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}
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}
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private void panel2_MouseMove(object sender, MouseEventArgs e)
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{
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if (isDown)
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{
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Panel obj = sender as Panel;
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//PointToClient 将指定屏幕点的位置计算成工作区坐标(控件内)。坐标原点为黄色区域（控件）左上角，X轴方向从左到右，Y轴方向从上到下，坐标单位为像素；
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//PointToScreen 将指定工作区点的位置计算成屏幕坐标。坐标原点在屏幕左上角，X轴方向从左到右，Y轴方向从上到下，坐标单位为像素。
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//1、PointToClient(Point p)
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//这里的p，坐标原点为Screen左上角，即(0, 0)。
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//它计算以当前Control的位置在Screen位置为坐标原点，返回p相对于坐标原点的值。
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//如上图例，btn在screen中位置为(328, 188)，那么，screen上点(10, 10)相对于(320, 188)即为结果(-318, -178)，同理screen上点(0, 0)相对于pnl来说，是(-183, -185)。
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//Control在Screen上点计算方式为：窗体Location加上其各级Parent的Location。
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//2、PointToScreen(Point p)
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//这里的p，坐标原点相对于Control的Location。
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//这是求p于Control的Locaton在Screen上点迭加结果。
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//如上例，pnl相对于窗体位置为(80, 60)，其加上窗体Location(200, 100)，再加上边框宽度3、标题栏高度25，即得185。
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//btn.PointToScreen(new Point(30, 20)): { X = 358,Y = 208}
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//此值即为：btn在Screen上位置(328, 188)加上(30, 20)所得。
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// 先获取到当前鼠标所在位置，并减去鼠标左键按下时相对PictureBox左上角的坐标点，就是当前坐标要停留的坐标点位置。
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Point point = this.PointToClient(obj.PointToScreen(new Point(e.X - mouseDownPoint.X, e.Y - mouseDownPoint.Y)));
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obj.Location = point;
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}
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}
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private void panel2_MouseUp(object sender, MouseEventArgs e)
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{
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if (isDown)
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{
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}
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isDown = false;
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}
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private void Form1_Paint(object sender, PaintEventArgs e)
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{
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System.Drawing.Pen pen = new Pen(Color.Red);
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if (isDrawing == 1)
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{
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if (drawpaths.Count >= 1)
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{
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foreach (List<PointF> drawpath in drawpaths)
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{
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if (drawpath.Count >= 2)
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{
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e.Graphics.DrawLines(pen, drawpath.ToArray());
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if (continues.Equals(PointF.Empty) == false)
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{
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e.Graphics.DrawLine(pen, start, continues);
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}
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}
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else
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{
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if (continues.Equals(PointF.Empty) == false)
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{
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e.Graphics.DrawLine(pen, start, continues);
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}
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}
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}
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}
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if (drawpathtemp.Count >= 2)
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{
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e.Graphics.DrawLines(pen, drawpathtemp.ToArray());
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if (continues.Equals(PointF.Empty) == false)
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{
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e.Graphics.DrawLine(pen, start, continues);
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}
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}
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else
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{
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if (continues.Equals(PointF.Empty) == false)
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{
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e.Graphics.DrawLine(pen, start, continues);
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}
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}
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}
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else if (isDrawing == 0)
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{
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foreach (List<PointF> drawpath in drawpaths)
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{
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if (drawpath.Count >= 2)
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{
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e.Graphics.DrawLines(pen, drawpath.ToArray());
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}
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}
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}
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}
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private void Form1_MouseClick(object sender, MouseEventArgs e)
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{
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if (e.Button == MouseButtons.Left)
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{
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if (isDrawing == 0)
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{
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start = e.Location;
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isDrawing = 1;
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drawpathtemp.Add(start);
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}
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else if (isDrawing == 1)
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{
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start = e.Location;
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drawpathtemp.Add(start);
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}
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else if (isDrawing == 2)
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{
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}
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this.Refresh();
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}
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if (e.Button == MouseButtons.Right)
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{
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if (r.IsVisible(e.Location))
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{
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MessageBox.Show("在选中区域内");
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}
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else
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{
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MessageBox.Show("不在选中区域内");
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}
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}
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}
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private void Form1_MouseMove(object sender, MouseEventArgs e)
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{
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if (isDrawing == 1)
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{
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continues = e.Location;
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this.Refresh();
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}
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}
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private void FormGdi_KeyDown(object sender, KeyEventArgs e)
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{
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switch (e.KeyCode)
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{
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case Keys.Escape:
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drawpathtemp.Add(drawpathtemp.ElementAt(0));
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List<PointF> temp = new List<PointF>();
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if (drawpathtemp.Count > 2)
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{
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temp = drawpathtemp.GetRange(0, drawpathtemp.Count);
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drawpaths.Add(temp);
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}
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drawpathtemp.Clear();
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start = PointF.Empty;
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end = PointF.Empty;
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continues = PointF.Empty;
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isDrawing = 0;
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GraphicsPath gp = new GraphicsPath();
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gp.Reset();
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foreach (List<PointF> item in drawpaths)
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{
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gp.AddPolygon(item.ToArray());
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r.MakeEmpty();
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r.Union(gp);
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}
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this.Refresh();
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break;
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default:
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break;
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}
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}
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#if false
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private PointF[] ToPointF(Topology.Coordinate[] coordinates)
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{
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PointF[] pointFs = new PointF[coordinates.Length];
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int i = 0;
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foreach (Topology.Coordinate item in coordinates)
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{
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pointFs[i] = new PointF((float)item.X, (float)item.Y);
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i++;
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}
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return pointFs;
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}
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private List<PointD> ToPointD(Topology.Coordinate[] coordinates)
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{
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List<PointD> pointFs = new List<PointD>();
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int i = 0;
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foreach (Topology.Coordinate item in coordinates)
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{
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pointFs.Add(new PointD(item.X, item.Y));
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i++;
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}
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return pointFs;
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}
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#endif
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private void panel2_DoubleClick(object sender, EventArgs e)
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{
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(sender as Panel).BringToFront();
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}
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#if false
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private void panel3_Paint(object sender, PaintEventArgs e)
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{
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e.Graphics.SmoothingMode = SmoothingMode.AntiAlias; //使绘图质量最高，即消除锯齿
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//g.InterpolationMode = InterpolationMode.HighQualityBicubic; //要らない！！！
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//g.CompositingQuality = CompositingQuality.HighQuality; //要らない！！！
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//32.923023515806,130.70006035416
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//32.933253514755,130.69430969802
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//32.936999415636,130.7124199733
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//32.929507455233,130.73954247087
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//double rate = 1D;
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Topology.LineString ls = new Topology.LineString(
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new Topology.Coordinate[] {
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//new Topology.Coordinate { X = 32.923023515806 * rate, Y = 130.70006035416* rate },
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//new Topology.Coordinate { X = 32.933253514755 * rate, Y = 130.69430969802* rate },
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//new Topology.Coordinate { X = 32.936999415636 * rate, Y = 130.7124199733* rate },
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//new Topology.Coordinate { X = 32.929507455233 * rate , Y = 130.73954247087* rate }
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new Topology.Coordinate { X = 32.923023515806, Y = 130.70006035416 },
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new Topology.Coordinate { X = 32.933253514755, Y = 130.69430969802 },
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new Topology.Coordinate { X = 32.936999415636, Y = 130.7124199733 },
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new Topology.Coordinate { X = 32.929507455233 , Y = 130.73954247087 }
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//new Topology.Coordinate { X = 25, Y = 28 },
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//new Topology.Coordinate { X = 200, Y = 32 },
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//new Topology.Coordinate { X = 250, Y = 326 },
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//new Topology.Coordinate { X = 350, Y = 326 },
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//new Topology.Coordinate { X = 350, Y = 426 },
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//new Topology.Coordinate { X = 150, Y = 476 }
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});
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//Topology.Polygon result = ls.Buffer(10, NetTopologySuite.Operation.Buffer.EndCapStyle.Flat) as Topology.Polygon;
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PointF[] pointFs = ToPointF(ls.Coordinates);
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e.Graphics.DrawLines(new Pen(Color.Red, 3), pointFs);
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//pointFs = ToPointF(result.Coordinates);
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//e.Graphics.DrawPolygon(new Pen(Color.Blue, 3), pointFs);
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List<PointD> pointDs = ToPointD(ls.Coordinates);
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List<PointD> r1 = Geometry.OffsetCoords(pointDs, 0.0005) as List<PointD>;
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StringBuilder text = new StringBuilder();
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foreach (PointD item in r1)
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{
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text.AppendLine("{" + $" lat: {item.X}, lng: {item.Y} " + "},");
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}
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System.Diagnostics.Debug.WriteLine(text.ToString());
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e.Graphics.DrawLines(new Pen(Color.Green, 3), PointD.ToPointF(r1).ToArray());
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List<PointD> r2 = Geometry.OffsetCoords(pointDs, -0.0005) as List<PointD>;
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StringBuilder text1 = new StringBuilder();
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foreach (PointD item in r2)
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{
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text1.AppendLine("{" + $" lat: {item.X}, lng: {item.Y} " + "},");
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}
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System.Diagnostics.Debug.WriteLine(text1.ToString());
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e.Graphics.DrawLines(new Pen(Color.Green, 3), PointD.ToPointF(r2).ToArray());
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r2.Reverse();
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r1.AddRange(r2);
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StringBuilder text2 = new StringBuilder();
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foreach (PointD item in r1)
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{
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text2.AppendLine("{" + $" lat: {item.X}, lng: {item.Y} " + "},");
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}
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System.Diagnostics.Debug.WriteLine(text2.ToString());
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StringBuilder text3 = new StringBuilder();
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foreach (PointD item in r1)
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{
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text3.AppendLine($"{item.X},{item.Y}");
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}
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System.Diagnostics.Debug.WriteLine(text3.ToString());
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e.Graphics.DrawPolygon(new Pen(Color.Blue, 3), PointD.ToPointF(r1).ToArray());
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e.Graphics.SmoothingMode = SmoothingMode.Default;
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}
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#endif
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}
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}
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