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linear-app-launcher/Windows/Forms/TitlePanel.cs
2020-04-05 01:32:49 +01:00

76 lines
2.1 KiB
C#

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Drawing;
using System.Data;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
namespace AppLauncher.Windows.Forms
{
public partial class TitlePanel : UserControl
{
private bool isDragging = false;
private Point windowOffset = new Point();
public TitlePanel()
{
InitializeComponent();
}
protected override void OnParentBindingContextChanged(EventArgs e)
{
base.OnParentBindingContextChanged(e);
if (this.Parent != null)
{
if (this.Parent.GetType() == typeof(MainForm))
{
pictureBox1.MouseDown += parentForm_MouseDown;
pictureBox1.MouseUp += parentForm_MouseUp;
pictureBox1.MouseMove += parentForm_MouseMove;
}
}
}
[Category("Appearance"), Browsable(true)]
public string TitleText
{
get => label1.Text;
set => label1.Text = value;
}
protected void parentForm_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button != MouseButtons.Left)
{
return;
}
isDragging = true;
windowOffset = e.Location;
}
protected void parentForm_MouseUp(object sender, MouseEventArgs e)
{
isDragging = false;
}
protected void parentForm_MouseMove(object sender, MouseEventArgs e)
{
if (isDragging)
{
Point pos = this.PointToScreen(e.Location);
int y = Math.Max((pos.Y - windowOffset.Y), Screen.PrimaryScreen.WorkingArea.Y);
y = Math.Min(y, (Screen.PrimaryScreen.WorkingArea.Y + Screen.PrimaryScreen.WorkingArea.Height) - this.Height);
this.Parent.Location = new Point(Screen.PrimaryScreen.WorkingArea.X, y);
}
}
}
}