#region License Information (GPL v3)
/*
ShareX - A program that allows you to take screenshots and share any file type
Copyright (c) 2007-2020 ShareX Team
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
Optionally you can also view the license at .
*/
#endregion License Information (GPL v3)
using ShareX.HelpersLib;
using ShareX.Properties;
using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Windows.Forms;
namespace ShareX
{
public class DropForm : LayeredForm
{
private static DropForm instance;
public static DropForm GetInstance(int size, int offset, ContentAlignment alignment, int opacity, int hoverOpacity, TaskSettings taskSettings = null)
{
if (instance == null || instance.IsDisposed)
{
instance = new DropForm(size, offset, alignment, opacity, hoverOpacity);
}
instance.taskSettings = taskSettings;
return instance;
}
public int DropSize { get; set; }
public int DropOffset { get; set; }
public ContentAlignment DropAlignment { get; set; }
public int DropOpacity { get; set; }
public int DropHoverOpacity { get; set; }
private Bitmap backgroundImage;
private bool isHovered;
private TaskSettings taskSettings;
private DropForm(int size, int offset, ContentAlignment alignment, int opacity, int hoverOpacity)
{
InitializeComponent();
DropSize = size.Clamp(10, 300);
DropOffset = offset;
DropAlignment = alignment;
DropOpacity = opacity.Clamp(1, 255);
DropHoverOpacity = hoverOpacity.Clamp(1, 255);
backgroundImage = DrawDropImage(DropSize);
Location = Helpers.GetPosition(DropAlignment, DropOffset, Screen.PrimaryScreen.WorkingArea.Size, backgroundImage.Size);
SelectBitmap(backgroundImage, DropOpacity);
}
private Bitmap DrawDropImage(int size)
{
Bitmap bmp = new Bitmap(size, size);
Rectangle rect = new Rectangle(0, 0, size, size);
using (Graphics g = Graphics.FromImage(bmp))
{
g.FillRectangle(Brushes.CornflowerBlue, rect);
g.DrawRectangleProper(Pens.Black, rect);
using (Pen pen = new Pen(Color.WhiteSmoke, 5) { Alignment = PenAlignment.Inset })
{
g.DrawRectangleProper(pen, rect.Offset(-1));
}
string text = Resources.DropForm_DrawDropImage_Drop_here;
using (Font font = new Font("Arial", 20, FontStyle.Bold))
using (StringFormat sf = new StringFormat { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center })
{
g.DrawString(text, font, Brushes.Black, rect.LocationOffset(1), sf);
g.DrawString(text, font, Brushes.White, rect, sf);
}
}
return bmp;
}
private void DropForm_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
NativeMethods.ReleaseCapture();
NativeMethods.SendMessage(Handle, (uint)WindowsMessages.NCLBUTTONDOWN, (IntPtr)NativeConstants.HT_CAPTION, IntPtr.Zero);
}
}
private void DropForm_MouseUp(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
Close();
}
}
private void DropForm_DragEnter(object sender, DragEventArgs e)
{
if (e.Data.GetDataPresent(DataFormats.FileDrop, false) ||
e.Data.GetDataPresent(DataFormats.Bitmap, false) ||
e.Data.GetDataPresent(DataFormats.Text, false))
{
e.Effect = DragDropEffects.Copy;
if (!isHovered)
{
SelectBitmap(backgroundImage, DropHoverOpacity);
isHovered = true;
}
}
else
{
e.Effect = DragDropEffects.None;
}
}
private void DropForm_DragDrop(object sender, DragEventArgs e)
{
UploadManager.DragDropUpload(e.Data, taskSettings);
if (isHovered)
{
SelectBitmap(backgroundImage, DropOpacity);
isHovered = false;
}
}
private void DropForm_DragLeave(object sender, EventArgs e)
{
if (isHovered)
{
SelectBitmap(backgroundImage, DropOpacity);
isHovered = false;
}
}
#region Windows Form Designer generated code
///
/// Required designer variable.
///
private System.ComponentModel.IContainer components = null;
///
/// Clean up any resources being used.
///
/// true if managed resources should be disposed; otherwise, false.
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
if (backgroundImage != null) backgroundImage.Dispose();
base.Dispose(disposing);
}
///
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
///
private void InitializeComponent()
{
components = new System.ComponentModel.Container();
AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
Cursor = Cursors.SizeAll;
Text = "DropForm";
AllowDrop = true;
MouseDown += DropForm_MouseDown;
MouseUp += DropForm_MouseUp;
DragEnter += DropForm_DragEnter;
DragDrop += DropForm_DragDrop;
DragLeave += DropForm_DragLeave;
}
#endregion Windows Form Designer generated code
}
}