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FormMain.cs
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FormMain.cs
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using System;
using System.Diagnostics;
using System.Drawing;
using System.IO;
using System.Windows.Forms;
namespace WebMCam
{
/*
* Todo
* - Write comments for entire source
* - Implement better frame saving
*/
public partial class FormMain : Form
{
private FormOptions formOptions;
private Recorder recorder;
// Attachment
private Attach attach;
private Size previousSize;
private Point previousLocation;
// Hotkeys
private Hotkeys toggleHotkey = new Hotkeys();
private Hotkeys pauseHotkey = new Hotkeys();
private Hotkeys followHotkey = new Hotkeys();
/// <summary>
/// Constructor
/// </summary>
public FormMain()
{
DoubleBuffered = true;
InitializeComponent();
try
{
// Register Record/Stop Hotkey
toggleHotkey.KeyPressed += new EventHandler<KeyPressedEventArgs>(buttonToggle_Click);
toggleHotkey.RegisterHotKey(WebMCam.ModifierKeys.Control, Keys.F12);
// Register Pause/Resume Hotkey
pauseHotkey.KeyPressed += new EventHandler<KeyPressedEventArgs>(buttonPause_Click);
pauseHotkey.RegisterHotKey(WebMCam.ModifierKeys.Control, Keys.F11);
// Register Follow/Unfollow Hotkey
followHotkey.KeyPressed += new EventHandler<KeyPressedEventArgs>(followToggle_Click);
followHotkey.RegisterHotKey(WebMCam.ModifierKeys.Control, Keys.F10);
}
catch
{
Console.WriteLine("Hotkeys not registered!");
}
}
/// <summary>
/// On MainForm Load
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void FormMain_Load(object sender, EventArgs e)
{
FormMain_Resize(sender, e);
formOptions = new FormOptions();
await Updater.CheckAsync(linkGithub.Text);
// Just to load in the settings
formOptions.Opacity = 0;
formOptions.Show();
formOptions.Hide();
formOptions.Opacity = 100;
// Remember window size
var size = formOptions.getWindowSize();
if (size.Height > 1 && size.Width > 1)
{
Size = size;
}
// Check for FFmpeg otherwise warn the user
if (!File.Exists(Properties.Settings.Default.FFmpegPath))
MessageBox.Show("FFmpeg.exe does not exist, nothing will work properly. Please specify it's location in Options. " +
Environment.NewLine + Environment.NewLine + "You can download it by clicking the FFmpeg link on the main form.",
"FFmpeg Missing!", MessageBoxButtons.OK, MessageBoxIcon.Error);
// Set FPS from previous
numericUpDownFramerate.Value = Properties.Settings.Default.Framerate;
}
/// <summary>
/// Save window dimensions
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void FormMain_FormClosing(object sender, FormClosingEventArgs e)
{
formOptions.saveWindowSize(Size);
}
/// <summary>
/// When the form moves, update the recorder region (if its not null)
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void FormMain_Move(object sender, EventArgs e)
{
if (recorder == null)
return;
recorder.region = new Rectangle(
displayBox.PointToScreen(Point.Empty),
displayBox.Size);
}
/// <summary>
/// When form resizes update Title
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void FormMain_Resize(object sender, EventArgs e)
{
FormMain_Move(null, e);
Text = string.Format("WebMCam [{0}x{1}]", displayBox.Size.Width, displayBox.Size.Height);
if (displayBox.Size.Width > 1280 || displayBox.Size.Height > 720)
buttonWarning.Visible = true;
else if (buttonWarning.Visible)
buttonWarning.Visible = false;
}
/// <summary>
/// On Form right-click show the sizer
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void FormMain_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Right)
return;
textBoxSize.Text = string.Format("{0}x{1}", displayBox.Width, displayBox.Height);
textBoxSize.Visible = !textBoxSize.Visible;
buttonSizeSet.Visible = !buttonSizeSet.Visible;
}
/// <summary>
/// Open the formShowFrames dialog
/// </summary>
/// <param name="allowDeletion">Results from formShowFrames dialog</param>
/// <returns></returns>
private Tuple<bool, int> showFrames(bool allowDeletion)
{
var formShowFrames = new FormShowFrames(recorder.tempPath, formOptions.getImageFormat(), allowDeletion);
formShowFrames.ShowDialog();
return new Tuple<bool, int>(formShowFrames.Result, formShowFrames.framesCount);
}
/// <summary>
/// Open the FFmpeg wrapper to process the frames
/// </summary>
/// <param name="framesCount"></param>
private void processFrames(int framesCount)
{
var format = formOptions.getImageFormat().ToString().ToLower();
var formProcess = new FormProcess(recorder.tempPath, "", framesCount);
string videoCodec = "";
Console.WriteLine(format);
formProcess.ffmpegPath = formOptions.getFFmpegPath();
formProcess.ffmpegArguments = formOptions.getFFmpegArguments();
formProcess.formatArguments(recorder.duration, "%d." + format,
recorder.fps, recorder.averageFps);
formProcess.ShowDialog();
}
/// <summary>
/// Toggle Recording
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonToggle_Click(object sender, EventArgs e)
{
// Start Recording
if (buttonToggle.Text == "Record")
{
// Set Text
buttonToggle.Text = "Stop";
buttonPause.Visible = true;
// Update Settings
Properties.Settings.Default.Framerate = numericUpDownFramerate.Value;
Properties.Settings.Default.Save();
// Create recorder and set options
recorder = new Recorder(formOptions.getImageFormat());
recorder.fps = (float)numericUpDownFramerate.Value;
recorder.drawCursor = checkBoxDrawCursor.Checked;
// Trigger FormMain_Resize to get region of displayBox
FormMain_Resize(sender, e);
// Start
recorder.Start(checkBoxCaptureAudio.Checked);
timerRecord.Start();
// Set Alt Window Tracking if the option is set
if (Properties.Settings.Default.AltWindowTracking)
timerTracker.Start();
FormBorderStyle = FormBorderStyle.FixedDialog;
}
// Stop Recording
else {
// Stop
recorder.Stop();
timerRecord.Stop();
timerTracker.Stop();
// Set Text
buttonToggle.Text = "Record";
buttonPause.Visible = false;
FormMain_Resize(sender, e);
TopMost = false;
// Edit
checkBoxFollow.Checked = false;
var showFramesResult = showFrames(!checkBoxCaptureAudio.Checked);
// Process if showFrames was successful
if (showFramesResult.Item1)
processFrames(showFramesResult.Item2);
// Delete leftovers
recorder.Flush();
recorder = null;
FormBorderStyle = FormBorderStyle.Sizable;
TopMost = checkBoxTopMost.Checked;
}
}
/// <summary>
/// Resize frame
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonSizeSet_Click(object sender, EventArgs e)
{
textBoxSize.Visible = false;
buttonSizeSet.Visible = false;
try
{
var size = textBoxSize.Text.Split('x');
var addWidth = Convert.ToInt32(size[0]) - displayBox.Width;
var addHeight = Convert.ToInt32(size[1]) - displayBox.Height;
Width += addWidth;
Height += addHeight;
}
catch
{
/* Suppress */
}
}
/// <summary>
/// Initiate Attach class, and start timerAttach to attach to next clicked window
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void checkBoxAttach_CheckedChanged(object sender, EventArgs e)
{
attach = new Attach();
if (checkBoxAttach.Checked)
{
previousSize = Size;
previousLocation = Location;
}
else
{
FormMain_Resize(null, e);
Size = previousSize;
Location = previousLocation;
}
timerAttach.Enabled = checkBoxAttach.Checked;
}
/// <summary>
/// Pause/Resume active recording
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonPause_Click(object sender, EventArgs e)
{
if (recorder != null)
recorder.Pause();
buttonPause.Text = buttonPause.Text == "Pause" ? "Resume" : "Pause";
}
/// <summary>
/// Open options dialog
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonOptions_Click(object sender, EventArgs e)
{
TopMost = false;
formOptions.ShowDialog();
TopMost = true;
}
/// <summary>
/// Form will always be top-most when checkbox is checked
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void checkBoxTopMost_CheckedChanged(object sender, EventArgs e)
{
TopMost = ((CheckBox)sender).Checked;
}
/// <summary>
/// Form will follow cursor when checkbox is checked
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void checkBoxFollow_CheckedChanged(object sender, EventArgs e)
{
timerFollow.Enabled = checkBoxFollow.Checked;
}
/// <summary>
/// Pause/Resume active recording
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void followToggle_Click(object sender, EventArgs e)
{
timerFollow.Enabled = checkBoxFollow.Checked = !checkBoxFollow.Checked;
}
/// <summary>
/// Timer to update Title text while recording
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void timerRecord_Tick(object sender, EventArgs e)
{
if (recorder == null)
return;
Text = string.Format("WebMCam [{0}x{1}] [{2}f / {3:F1}s = {4:F2} FPS]",
displayBox.Size.Width, displayBox.Size.Height,
recorder.frames, recorder.duration, recorder.averageFps);
if (recorder.isPaused)
Text += " [PAUSED]";
}
/// <summary>
/// Timer to make form follow cursor
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void timerFollow_Tick(object sender, EventArgs e)
{
var realLocation = PointToScreen(Point.Empty);
var cursor = displayBox.PointToClient(Cursor.Position);
// Cursor is out of bounds on X-axis
if (cursor.X < 1 || cursor.X > displayBox.Size.Width)
{
// Cursor hit the right
if (Cursor.Position.X > realLocation.X + displayBox.Size.Width)
Location = new Point(Cursor.Position.X - displayBox.Size.Width - 10, Location.Y);
// Cursor hit the left
else
Location = new Point(Cursor.Position.X - 10, Location.Y);
}
// Cursor is out of bounds on Y-axis
if (cursor.Y < 1 || cursor.Y > ClientSize.Height)
{
// Cursor hit the bottom
if (Cursor.Position.Y > realLocation.Y + ClientSize.Height)
Location = new Point(Location.X, Cursor.Position.Y - ClientSize.Height - 20);
// Cursor hit the top
else
Location = new Point(Location.X, Cursor.Position.Y - (realLocation.Y - Location.Y) - 3);
}
}
/// <summary>
/// Timer to make recording window attach/follow another window
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void timerAttach_Tick(object sender, EventArgs e)
{
if (!attach.isSet)
{
Text = "Click any Window";
attach.Wait();
return;
}
var borderWidth = SystemInformation.BorderSize.Width;
var titleHeight = SystemInformation.CaptionHeight;
var location = attach.Size();
Width = location.Width - location.X + 115;
Height = location.Height - location.Y + titleHeight;
Location = new Point(
location.X - borderWidth,
location.Y - titleHeight);
}
/// <summary>
/// Warning Button
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void buttonWarning_Click(object sender, EventArgs e)
{
MessageBox.Show("Recording high resolutions may not work as expected.", "Good luck...", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
/// <summary>
/// Show information about things and hidden features
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void linkHelp_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
var n = Environment.NewLine;
MessageBox.Show(
"Press Ctrl+F10 to initiate cursor following." + n +
"Press Ctrl+F12 to start or stop recording." + n +
"Press Ctrl+F11 to pause or unpause a recording." + n + n +
"Right click on the form to show the sizing interface.",
"Hotkey Information", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
/// <summary>
/// Open FFmpeg URL
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void linkLabelFFmpeg_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
Process.Start("https://www.ffmpeg.org/");
}
/// <summary>
/// Open repository URL
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void linkGithub_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
{
Process.Start("https://github.com/thetarkus/WebMCam");
}
}
}