217 lines
8.5 KiB
C#
217 lines
8.5 KiB
C#
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using Newtonsoft.Json.Linq;
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using ProductionControl.Utils;
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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.Imaging;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Windows.Forms;
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namespace ProductionControl
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{
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public partial class FrmPhotoShow : Form
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{
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List<Bitmap> lstBmp;
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private int picIndex=0;
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//
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#region pic缩放变量
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private double ratio = 1; // 图片的起始显示比例
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private double ratioStep = 0.1;
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private Size pic_size;
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private int xPos;
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private int yPos;
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#endregion
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public FrmPhotoShow(List<Bitmap> list)
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{
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InitializeComponent();
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lstBmp = list;
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//
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//this.Width = Screen.PrimaryScreen.WorkingArea.Width / 2;
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//this.Location = new Point(0, 0);
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}
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protected override bool ProcessDialogKey(Keys keyData)
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{
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if (keyData == Keys.Up || keyData == Keys.Down || keyData == Keys.Left || keyData == Keys.Right)
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return false;
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else
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return base.ProcessDialogKey(keyData);
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}
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private void FrmPhotoShow_Load(object sender, EventArgs e)
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{
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}
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private void FrmPhotoShow_Shown(object sender, EventArgs e)
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{
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this.reloadPic(lstBmp[picIndex]);
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tslblPageNum.Text = $"第 {picIndex + 1}/{lstBmp.Count} 张";
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tsbtnPre.Enabled = (picIndex > 0);
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tsbtnNext.Enabled = (picIndex < lstBmp.Count - 1);
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}
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private void tsbtnPre_Click(object sender, EventArgs e)
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{
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if (picIndex <= 0) return;
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reloadPic(lstBmp[--picIndex]);
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tslblPageNum.Text = $"第 {picIndex + 1}/{lstBmp.Count} 张";
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tsbtnPre.Enabled = (picIndex > 0);
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tsbtnNext.Enabled = (picIndex < lstBmp.Count - 1);
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}
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private void tsbtnNext_Click(object sender, EventArgs e)
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{
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if (picIndex >=lstBmp.Count-1) return;
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reloadPic(lstBmp[++picIndex]);
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tslblPageNum.Text = $"第 {picIndex + 1}/{lstBmp.Count} 张";
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tsbtnPre.Enabled = (picIndex > 0);
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tsbtnNext.Enabled = (picIndex < lstBmp.Count - 1);
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}
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private void FrmPhoto_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.Up:
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case Keys.Left:
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if (!this.tsbtnPre.Enabled) return;
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tsbtnPre_Click(null, null);
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break;
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case Keys.Down:
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case Keys.Right:
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if (!this.tsbtnNext.Enabled) return;
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tsbtnNext_Click(null, null);
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break;
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}
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}
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//----------
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#region 图片缩放控制
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private void reloadPic(Bitmap bmp)
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{
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var newSize = Util.getNewSize(this.ClientSize, new Size(bmp.Size.Width * 100, bmp.Size.Height * 100));
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this.pnlPic.Size = newSize;
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if (this.pnlPic.Width < this.ClientSize.Width)
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this.pnlPic.Left = (this.ClientSize.Width - this.pnlPic.Width) / 2;
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if (this.pnlPic.Height < this.ClientSize.Height)
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this.pnlPic.Top = (this.ClientSize.Height - this.pnlPic.Height) / 2;
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ratio = 1.0;// 图片的起始显示比例
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Size size = bmp.Size;
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//this.pnlPic.ClientSize = new Size(this.pnlPic.ClientSize.Width,
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// (int)(this.pnlPic.ClientSize.Width * (size.Height * 1.0f / size.Width)));
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this.pictureBox1.Size = this.pnlPic.ClientSize;
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this.pictureBox1.Location = new Point(0, 0);
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this.pictureBox1.Image = bmp;//del
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pictureBox1.SizeMode = System.Windows.Forms.PictureBoxSizeMode.Zoom;
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pictureBox1.MouseWheel += new MouseEventHandler(pictureBox1_MouseWheel);
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pictureBox1.MouseMove += pictureBox1_MouseMove;
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pictureBox1.MouseDown += pictureBox1_MouseDown;
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this.ActiveControl = this.pictureBox1; // 设置焦点
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pic_size = this.pnlPic.ClientSize;
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}
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private void pictureBox1_MouseWheel(object sender, MouseEventArgs e)
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{
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Point pictureBoxPoint = this.PointToClient(Cursor.Position);
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//this.Text = $"{e.X}:{e.Y}; {pictureBoxPoint.X}:{pictureBoxPoint.Y}; {pictureBox1.Left}:{pictureBox1.Top}; " +
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// $"{this.pictureBox1.Width}:{this.pictureBox1.Height}; {this.Width}:{this.Height}; " +
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// $"Cursor:{Cursor.Position.X}:{Cursor.Position.Y}";
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if (e.Delta > 0)
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{
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ratio += ratioStep;
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if (ratio > 100) // 放大上限
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ratio = 100;
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else
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{
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int x = (int)(pictureBox1.Left - e.X * (e.X * 1.0d / pictureBox1.Width * ratioStep) + 0.5);
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int y = (int)(pictureBox1.Top - e.Y * (e.Y * 1.0d / pictureBox1.Height * ratioStep) + 0.5);
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//this.Text = $"{pictureBox1.Width}-{pic_size.Width};{ratio}，{pictureBox1.Left}-{e.X}* 比例:{e.X*1.0d/pictureBox1.Width}={e.X}/{pictureBox1.Width} * {(ratioStep)}={x} | " +
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// $"{pictureBox1.Top}-{e.Y}* {e.Y * 1.0f / pictureBox1.Height * (ratio - 1.0d)}={y}";
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this.changePictureBoxSize(new Point(x, y), ratio);
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}
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}
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else if (ratio - ratioStep >= 1)
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{
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ratio -= ratioStep;
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//if (ratio < 0.1) // 放大下限
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// ratio = 0.1;
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//else
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int x = (int)(pictureBox1.Left + e.X * (e.X * 1.0d / pictureBox1.Width * ratioStep) + 0.5);
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int y = (int)(pictureBox1.Top + e.Y * (e.Y * 1.0d / pictureBox1.Height * ratioStep) + 0.5);
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this.changePictureBoxSize(new Point(x, y), ratio);
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}
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}
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private void changePictureBoxSize(Point location, double ratio)
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{
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var picSize = pictureBox1.Size;
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picSize.Width = Convert.ToInt32(pic_size.Width * ratio);
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picSize.Height = Convert.ToInt32(pic_size.Height * ratio);
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pictureBox1.Size = picSize;
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if (location.X > 0) location.X = 0;
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if (location.Y > 0) location.Y = 0;
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if (picSize.Width + location.X < this.pnlPic.ClientSize.Width) location.X = -(picSize.Width - this.pnlPic.ClientSize.Width);
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if (picSize.Height + location.Y < this.pnlPic.ClientSize.Height) location.Y = -(picSize.Height - this.pnlPic.ClientSize.Height);
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//Point location = new Point();
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//location.X = (this.ClientSize.Width - this.pictureBox1.Width) / 2;
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//location.Y = (this.ClientSize.Height - this.pictureBox1.Height) / 2;
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this.pictureBox1.Location = location;
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}
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private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
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{
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try
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{
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// 鼠标按下拖拽图片
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if (e.Button == MouseButtons.Left)
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{
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//this.Text = $"{e.X}:{e.Y};{xPos}:{yPos}";
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// 限制拖拽出框
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if (pictureBox1.Width > this.pnlPic.ClientSize.Width
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|| pictureBox1.Height > this.pnlPic.ClientSize.Height)
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{
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int moveX = e.X - xPos;
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int moveY = e.Y - yPos;
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if ((pictureBox1.Left + moveX) <= 0
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&& (pictureBox1.Top + moveY) <= 0
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&& (pictureBox1.Right + moveX) >= this.pnlPic.ClientSize.Width
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&& (pictureBox1.Bottom + moveY) >= this.pnlPic.ClientSize.Height)
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{
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pictureBox1.Left += moveX;//设置x坐标.
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pictureBox1.Top += moveY;//设置y坐标.
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}
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}
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}
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}
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catch (Exception dd)
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{
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MessageBox.Show(dd.Message);
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}
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}
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private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
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{
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xPos = e.X;//当前x坐标.
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yPos = e.Y;//当前y坐标.
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}
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#endregion
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private void tsbtnClose_Click(object sender, EventArgs e)
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{
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this.Close();
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}
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}
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}
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