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stax76
284
mpvnet/MainForm.cs
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284
mpvnet/MainForm.cs
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/**
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*mpv.net
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*Copyright(C) 2017 stax76
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*
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*This program is free software: you can redistribute it and/or modify
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*it under the terms of the GNU General Public License as published by
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*the Free Software Foundation, either version 3 of the License, or
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*(at your option) any later version.
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*
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*This program is distributed in the hope that it will be useful,
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*but WITHOUT ANY WARRANTY; without even the implied warranty of
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*MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.See the
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*GNU General Public License for more details.
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*
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*You should have received a copy of the GNU General Public License
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*along with this program. If not, see http://www.gnu.org/licenses/.
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*/
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using System;
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using System.Diagnostics;
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using System.Drawing;
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using System.Runtime.InteropServices;
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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 mpvnet
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{
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public partial class MainForm : Form
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{
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public static MainForm Instance { get; set; }
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public static IntPtr Hwnd;
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private Point LastCursorPosChanged;
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private int LastCursorChangedTickCount;
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public ContextMenuEx Menu;
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public MainForm()
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{
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try
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{
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Application.ThreadException += Application_ThreadException;
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InitializeComponent();
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Instance = this;
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Hwnd = Handle;
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mpv.Init();
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mpv.ObserveBoolProp("fullscreen", MpvChangeFullscreen);
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mpv.AfterShutdown += Mpv_AfterShutdown;
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mpv.FileLoaded += Mpv_FileLoaded;
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mpv.VideoSizeChanged += Mpv_VideoSizeChanged;
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Menu = new ContextMenuEx();
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ContextMenu = Menu;
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ContextMenu.MenuItems.Add("About mpv.net", About);
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}
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catch (Exception e)
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{
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HandleException(e);
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}
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}
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private void Application_ThreadException(object sender, ThreadExceptionEventArgs e)
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{
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HandleException(e.Exception);
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}
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void HandleException(Exception e)
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{
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MessageBox.Show(e.ToString(), "mpv.net Exception", MessageBoxButtons.OK, MessageBoxIcon.Error);
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}
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private void About(object sender, EventArgs e)
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{
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mpv.Command("show-text", Application.ProductName + " v" + Application.ProductVersion.ToString() +
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"\nCopyright (c) 2017 stax76\nGPL License", "5000");
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}
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private void Mpv_VideoSizeChanged()
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{
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BeginInvoke(new Action(() => SetFormPosSize()));
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}
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private void Mpv_FileLoaded()
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{
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BeginInvoke(new Action(() => Text = mpv.GetStringProp("filename") + " - mpv.net"));
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}
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private void Mpv_AfterShutdown() => Invoke(new Action(() => Close()));
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public bool IsFullscreen
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{
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get { return WindowState == FormWindowState.Maximized; }
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}
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void MpvChangeFullscreen(bool value)
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{
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BeginInvoke(new Action(() => ChangeFullscreen(value)));
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}
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void ChangeFullscreen(bool value)
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{
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if (value)
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{
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FormBorderStyle = FormBorderStyle.None;
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WindowState = FormWindowState.Maximized;
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}
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else
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{
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WindowState = FormWindowState.Normal;
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FormBorderStyle = FormBorderStyle.Sizable;
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}
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}
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protected override void WndProc(ref Message m)
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{
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switch (m.Msg)
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{
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case 0x0201: // WM_LBUTTONDOWN
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case 0x0202: // WM_LBUTTONUP
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case 0x0100: // WM_KEYDOWN
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case 0x0101: // WM_KEYUP
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case 0x020A: // WM_MOUSEWHEEL
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if (mpv.MpvWindowHandle != IntPtr.Zero)
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Native.SendMessage(mpv.MpvWindowHandle, m.Msg, m.WParam, m.LParam);
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break;
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case 0x203: // Native.WM.LBUTTONDBLCLK
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if (!IsMouseInOSC())
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mpv.CommandString("cycle fullscreen");
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break;
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case 0x0214: // WM_SIZING
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var rc = Marshal.PtrToStructure<Native.RECT>(m.LParam);
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var r = rc;
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subtract_window_borders(Handle, ref r);
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int c_w = r.Right - r.Left, c_h = r.Bottom - r.Top;
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float aspect = mpv.VideoSize.Width / (float)mpv.VideoSize.Height;
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int d_w = (int)(c_h * aspect - c_w);
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int d_h = (int)(c_w / aspect - c_h);
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int[] d_corners = { d_w, d_h, -d_w, -d_h };
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int[] corners = { rc.Left, rc.Top, rc.Right, rc.Bottom };
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int corner = get_resize_border(m.WParam.ToInt32());
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if (corner >= 0)
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corners[corner] -= d_corners[corner];
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Marshal.StructureToPtr<Native.RECT>(new Native.RECT(corners[0], corners[1], corners[2], corners[3]), m.LParam, false);
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m.Result = new IntPtr(1);
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return;
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}
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base.WndProc(ref m);
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}
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static int get_resize_border(int v)
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{
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switch (v)
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{
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case 1 /* WMSZ_LEFT */ : return 3;
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case 3 /* WMSZ_TOP */ : return 2;
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case 2 /* WMSZ_RIGHT */ : return 3;
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case 6 /* WMSZ_BOTTOM */ : return 2;
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case 4 /* WMSZ_TOPLEFT */ : return 1;
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case 5 /* WMSZ_TOPRIGHT */ : return 1;
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case 7 /* WMSZ_BOTTOMLEFT */ : return 3;
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case 8 /* WMSZ_BOTTOMRIGHT */: return 3;
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default: return -1;
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}
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}
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static void subtract_window_borders(IntPtr hwnd, ref Native.RECT rc)
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{
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var b = new Native.RECT(0, 0, 0, 0);
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add_window_borders(hwnd, ref b);
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rc.Left -= b.Left;
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rc.Top -= b.Top;
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rc.Right -= b.Right;
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rc.Bottom -= b.Bottom;
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}
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static void add_window_borders(IntPtr hwnd, ref Native.RECT rc)
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{
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Native.AdjustWindowRect(ref rc, (uint)Native.GetWindowLongPtrW(hwnd, -16 /* GWL_STYLE */), false);
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}
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void SetFormPosSize()
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{
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if (IsFullscreen) return;
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var wa = Screen.GetWorkingArea(this);
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int h = (int)(wa.Height * 0.6);
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int w = (int)(h * mpv.VideoSize.Width / (float)mpv.VideoSize.Height);
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Point middlePos = new Point(Left + Width / 2, Top + Height / 2);
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var r = new Native.RECT(new Rectangle(0, 0, w, h));
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add_window_borders(Handle, ref r);
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int l = middlePos.X - r.Width / 2;
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int t = middlePos.Y - r.Height / 2;
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if (l < 0) l = 0;
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if (t < 0) t = 0;
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if (l + r.Width > wa.Width ) l = wa.Width - r.Width;
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if (t + r.Height > wa.Height ) t = wa.Height - r.Height;
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Native.SetWindowPos(Handle, IntPtr.Zero /* HWND_TOP */, l, t, r.Width, r.Height, 4 /* SWP_NOZORDER */);
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}
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protected override void OnDragEnter(DragEventArgs e)
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{
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base.OnDragEnter(e);
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if (e.Data.GetDataPresent(DataFormats.FileDrop))
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e.Effect = DragDropEffects.Copy;
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}
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protected override void OnDragDrop(DragEventArgs e)
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{
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base.OnDragDrop(e);
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if (e.Data.GetDataPresent(DataFormats.FileDrop))
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{
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int count = mpv.GetIntProp("playlist-count");
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string[] files = e.Data.GetData(DataFormats.FileDrop) as String[];
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foreach (string file in files)
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mpv.Command("loadfile", file, "append");
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mpv.SetIntProp("playlist-pos", count);
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for (int i = 0; i < count; i++)
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mpv.Command("playlist-remove", "0");
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mpv.LoadFolder();
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}
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}
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protected override void OnMouseDown(MouseEventArgs e)
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{
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base.OnMouseDown(e);
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// window-dragging
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if (WindowState == FormWindowState.Normal &&
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e.Button == MouseButtons.Left &&
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e.Y < ClientSize.Height * 0.9)
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{
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var HTCAPTION = new IntPtr(2);
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Native.ReleaseCapture();
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Native.PostMessage(Handle, 0xA1 /* WM_NCLBUTTONDOWN */, HTCAPTION, IntPtr.Zero);
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}
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}
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protected override void OnMouseMove(MouseEventArgs e)
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{
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base.OnMouseMove(e);
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// send mouse command to make OSC show
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mpv.CommandString($"mouse {e.X} {e.Y}");
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if (CursorHelp.IsPosDifferent(LastCursorPosChanged))
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CursorHelp.Show();
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}
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protected override void OnFormClosed(FormClosedEventArgs e)
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{
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base.OnFormClosed(e);
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mpv.Terminate();
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}
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bool IsMouseInOSC()
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{
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return PointToClient(Control.MousePosition).Y > ClientSize.Height * 0.9;
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}
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private void Timer_Tick(object sender, EventArgs e)
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{
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if (CursorHelp.IsPosDifferent(LastCursorPosChanged))
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{
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LastCursorPosChanged = Control.MousePosition;
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LastCursorChangedTickCount = Environment.TickCount;
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}
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else if (Environment.TickCount - LastCursorChangedTickCount > 1500 &&
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!IsMouseInOSC() && ClientRectangle.Contains(PointToClient(MousePosition)) &&
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Form.ActiveForm == this && !Menu.Visible)
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{
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CursorHelp.Hide();
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}
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}
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}
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}
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Reference in New Issue
Block a user