200 lines
7.3 KiB
C#
200 lines
7.3 KiB
C#
using CefSharp;
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using LittleRabbit.LittleRabbitForms.BaseForms;
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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.IO;
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using System.Linq;
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using System.Runtime.InteropServices;
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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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namespace LittleRabbit.LittleRabbitForms.UploadForms
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{
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public partial class FissionShowBigImgForm : LRBaseForm
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{
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public string imgUrl = "";
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public string imgId = "";
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public FissionShowBigImgForm(string ImgUrl = "", string ImgId = "")
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{
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this.DoubleBuffered = true;//设置本窗体
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SetStyle(ControlStyles.UserPaint, true);
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SetStyle(ControlStyles.AllPaintingInWmPaint, true); // 禁止擦除背景.
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SetStyle(ControlStyles.DoubleBuffer, true); // 双缓冲
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SetStyle(ControlStyles.DoubleBuffer | ControlStyles.OptimizedDoubleBuffer | ControlStyles.AllPaintingInWmPaint, true);
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UpdateStyles();
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InitializeComponent();
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imgUrl = ImgUrl;
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imgId = ImgId;
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this.ShowMaximizeBox = true;
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}
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protected override void WndProc(ref Message m)
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{
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if (m.Msg == 0x0014) // 禁掉清除背景消息
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return;
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const int WM_HOTKEY = 0x0312;
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//按快捷键
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switch (m.Msg)
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{
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case WM_HOTKEY:
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switch (m.WParam.ToInt32())
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{
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case 100: //按下的是100号快捷键
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btnShowPrev_Click(null, null); //此处填写快捷键响应代码
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break;
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case 101: //按下的是101号快捷键
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btnShowNext_Click(null, null); //此处填写快捷键响应代码
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break;
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case 102: //按下的是102号快捷键
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this.Close(); //此处填写快捷键响应代码
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break;
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}
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break;
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}
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base.WndProc(ref m);
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}
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private void ShowBigImgForm_Load(object sender, EventArgs e)
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{
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ShowImg();
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}
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public void ShowImg()
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{
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if (string.IsNullOrEmpty(imgId))
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{
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this.btnShowPrev.Visible = false;
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this.btnShowNext.Visible = false;
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}
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if (!string.IsNullOrEmpty(imgUrl))
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{
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try
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{
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Task.Run(() =>
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{
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System.Threading.Thread.Sleep(10);
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AllBase.WebClientx web = new AllBase.WebClientx();
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var imgArr = web.DownloadData(imgUrl);
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MemoryStream ms = new MemoryStream(imgArr);
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Invoke(new Action(() =>
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{
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this.pnlImg.BackgroundImage = Image.FromStream(ms);
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ms.Dispose();
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}));
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});
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}
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catch
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{
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}
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}
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}
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private void ShowBigImgForm_SizeChanged(object sender, EventArgs e)
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{
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var deltaNumber = this.Height - 60;
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if (this.Width - 28 < this.Height - 60)
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deltaNumber = this.Width - 28;
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this.pnlImg.Width = deltaNumber;
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this.pnlImg.Height = deltaNumber;
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this.pnlImg.Location = new Point((this.Width - 2) / 2 - this.pnlImg.Width / 2, (this.Height - 32 - 2) / 2 - this.pnlImg.Height / 2);
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}
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private void btnShowNext_Click(object sender, EventArgs e)
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{
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if (btnShowNext.Visible == false)
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return;
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var fiss = Fission.GetInstance();
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if (fiss != null && fiss.browser != null && fiss.browser.IsBrowserInitialized)
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{
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var jsCode = @"ShowNextImg('" + this.imgId + "');";
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Fission.GetInstance().browser.GetMainFrame().EvaluateScriptAsync(jsCode, null);
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}
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}
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private void btnShowPrev_Click(object sender, EventArgs e)
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{
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if (btnShowPrev.Visible == false)
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return;
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var fiss = Fission.GetInstance();
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if (fiss != null && fiss.browser != null && fiss.browser.IsBrowserInitialized)
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{
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var jsCode = @"ShowPrevImg('" + this.imgId + "');";
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Fission.GetInstance().browser.GetMainFrame().EvaluateScriptAsync(jsCode, null);
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}
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}
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/// <summary>
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/// 窗体激活时注册快捷键
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void FissionShowBigImgForm_Activated(object sender, EventArgs e)
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{
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//注册热键Shift+S，Id号为100。HotKey.KeyModifiers.Shift也可以直接使用数字4来表示。
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HotKey.RegisterHotKey(Handle, 100, HotKey.KeyModifiers.None, Keys.Left);
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//注册热键Ctrl+B，Id号为101。HotKey.KeyModifiers.Ctrl也可以直接使用数字2来表示。
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HotKey.RegisterHotKey(Handle, 101, HotKey.KeyModifiers.None, Keys.Right);
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//注册热键Alt+D，Id号为102。HotKey.KeyModifiers.Alt也可以直接使用数字1来表示。
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HotKey.RegisterHotKey(Handle, 102, HotKey.KeyModifiers.None, Keys.Escape);
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}
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/// <summary>
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/// 窗体离开时注销快捷键
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void FissionShowBigImgForm_Leave(object sender, EventArgs e)
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{
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//注销Id号为100的热键设定
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HotKey.UnregisterHotKey(Handle, 100);
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//注销Id号为101的热键设定
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HotKey.UnregisterHotKey(Handle, 101);
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//注销Id号为102的热键设定
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HotKey.UnregisterHotKey(Handle, 102);
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}
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}
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class HotKey
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{
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//如果函数执行成功，返回值不为0。
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//如果函数执行失败，返回值为0。要得到扩展错误信息，调用GetLastError。
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[DllImport("user32.dll", SetLastError = true)]
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public static extern bool RegisterHotKey(
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IntPtr hWnd, //要定义热键的窗口的句柄
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int id, //定义热键ID（不能与其它ID重复）
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KeyModifiers fsModifiers, //标识热键是否在按Alt、Ctrl、Shift、Windows等键时才会生效
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Keys vk //定义热键的内容
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);
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[DllImport("user32.dll", SetLastError = true)]
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public static extern bool UnregisterHotKey(
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IntPtr hWnd, //要取消热键的窗口的句柄
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int id //要取消热键的ID
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);
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//定义了辅助键的名称（将数字转变为字符以便于记忆，也可去除此枚举而直接使用数值）
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[Flags()]
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public enum KeyModifiers
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{
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None = 0,
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Alt = 1,
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Ctrl = 2,
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Shift = 4,
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WindowsKey = 8
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}
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}
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}
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