mirror of
https://github.com/ShareX/ShareX.git
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413 lines
14 KiB
C#
413 lines
14 KiB
C#
#region License Information (GPL v3)
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/*
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ShareX - A program that allows you to take screenshots and share any file type
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Copyright (c) 2007-2023 ShareX Team
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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Optionally you can also view the license at <http://www.gnu.org/licenses/>.
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*/
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#endregion License Information (GPL v3)
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using ShareX.HelpersLib.Properties;
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using System;
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using System.ComponentModel;
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using System.Drawing;
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using System.Drawing.Imaging;
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using System.Windows.Forms;
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namespace ShareX.HelpersLib
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{
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public abstract class ColorUserControl : UserControl
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{
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public event ColorEventHandler ColorChanged;
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public bool CrosshairVisible { get; set; } = true;
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public MyColor SelectedColor
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{
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get
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{
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return selectedColor;
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}
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set
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{
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selectedColor = value;
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if (this is ColorBox)
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{
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SetBoxMarker();
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}
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else
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{
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SetSliderMarker();
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}
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Invalidate();
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}
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}
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public DrawStyle DrawStyle
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{
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get
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{
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return drawStyle;
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}
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set
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{
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drawStyle = value;
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if (this is ColorBox)
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{
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SetBoxMarker();
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}
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else
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{
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SetSliderMarker();
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}
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Invalidate();
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}
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}
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protected Bitmap bmp;
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protected int clientWidth, clientHeight;
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protected DrawStyle drawStyle;
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protected MyColor selectedColor;
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protected bool mouseDown;
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protected Point lastPos;
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protected Timer mouseMoveTimer;
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#region Component Designer generated code
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private IContainer components = null;
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protected virtual void Initialize()
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{
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SuspendLayout();
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DoubleBuffered = true;
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clientWidth = ClientRectangle.Width;
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clientHeight = ClientRectangle.Height;
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bmp = new Bitmap(clientWidth, clientHeight, PixelFormat.Format32bppArgb);
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SelectedColor = Color.Red;
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DrawStyle = DrawStyle.Hue;
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mouseMoveTimer = new Timer();
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mouseMoveTimer.Interval = 10;
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mouseMoveTimer.Tick += new EventHandler(MouseMoveTimer_Tick);
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ClientSizeChanged += new EventHandler(EventClientSizeChanged);
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MouseDown += new MouseEventHandler(EventMouseDown);
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MouseEnter += new EventHandler(EventMouseEnter);
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MouseUp += new MouseEventHandler(EventMouseUp);
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Paint += new PaintEventHandler(EventPaint);
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ResumeLayout(false);
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}
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protected override void Dispose(bool disposing)
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{
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if (disposing && (components != null))
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{
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components.Dispose();
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if (bmp != null) bmp.Dispose();
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}
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base.Dispose(disposing);
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}
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#endregion Component Designer generated code
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#region Events
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private void EventClientSizeChanged(object sender, EventArgs e)
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{
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clientWidth = ClientRectangle.Width;
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clientHeight = ClientRectangle.Height;
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if (bmp != null) bmp.Dispose();
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bmp = new Bitmap(clientWidth, clientHeight, PixelFormat.Format32bppArgb);
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DrawColors();
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}
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private void EventMouseDown(object sender, MouseEventArgs e)
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{
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CrosshairVisible = true;
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mouseDown = true;
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mouseMoveTimer.Start();
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}
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private void EventMouseEnter(object sender, EventArgs e)
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{
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if (this is ColorBox)
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{
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Cursor = Helpers.CreateCursor(Resources.Crosshair);
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}
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}
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private void EventMouseUp(object sender, MouseEventArgs e)
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{
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mouseDown = false;
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mouseMoveTimer.Stop();
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}
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private void EventPaint(object sender, PaintEventArgs e)
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{
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Graphics g = e.Graphics;
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if (!mouseDown)
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{
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if (SelectedColor.IsTransparent)
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{
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if (bmp != null) bmp.Dispose();
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bmp = ImageHelpers.DrawCheckers(clientWidth, clientHeight);
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}
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DrawColors();
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}
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g.DrawImage(bmp, ClientRectangle);
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if (CrosshairVisible)
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{
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DrawCrosshair(g);
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}
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}
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private void MouseMoveTimer_Tick(object sender, EventArgs e)
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{
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Point mousePosition = GetPoint(PointToClient(MousePosition));
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if (mouseDown && lastPos != mousePosition)
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{
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GetPointColor(mousePosition);
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OnColorChanged();
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Refresh();
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}
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}
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#endregion Events
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#region Protected Methods
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protected void OnColorChanged()
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{
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ColorChanged?.Invoke(this, new ColorEventArgs(SelectedColor, DrawStyle));
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}
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protected void DrawColors()
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{
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switch (DrawStyle)
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{
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case DrawStyle.Hue:
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DrawHue();
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break;
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case DrawStyle.Saturation:
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DrawSaturation();
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break;
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case DrawStyle.Brightness:
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DrawBrightness();
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break;
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case DrawStyle.Red:
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DrawRed();
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break;
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case DrawStyle.Green:
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DrawGreen();
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break;
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case DrawStyle.Blue:
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DrawBlue();
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break;
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}
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}
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protected void SetBoxMarker()
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{
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switch (DrawStyle)
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{
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case DrawStyle.Hue:
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lastPos.X = Round((clientWidth - 1) * SelectedColor.HSB.Saturation);
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lastPos.Y = Round((clientHeight - 1) * (1.0 - SelectedColor.HSB.Brightness));
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break;
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case DrawStyle.Saturation:
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lastPos.X = Round((clientWidth - 1) * SelectedColor.HSB.Hue);
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lastPos.Y = Round((clientHeight - 1) * (1.0 - SelectedColor.HSB.Brightness));
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break;
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case DrawStyle.Brightness:
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lastPos.X = Round((clientWidth - 1) * SelectedColor.HSB.Hue);
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lastPos.Y = Round((clientHeight - 1) * (1.0 - SelectedColor.HSB.Saturation));
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break;
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case DrawStyle.Red:
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lastPos.X = Round((clientWidth - 1) * (double)SelectedColor.RGBA.Blue / 255);
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lastPos.Y = Round((clientHeight - 1) * (1.0 - ((double)SelectedColor.RGBA.Green / 255)));
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break;
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case DrawStyle.Green:
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lastPos.X = Round((clientWidth - 1) * (double)SelectedColor.RGBA.Blue / 255);
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lastPos.Y = Round((clientHeight - 1) * (1.0 - ((double)SelectedColor.RGBA.Red / 255)));
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break;
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case DrawStyle.Blue:
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lastPos.X = Round((clientWidth - 1) * (double)SelectedColor.RGBA.Red / 255);
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lastPos.Y = Round((clientHeight - 1) * (1.0 - ((double)SelectedColor.RGBA.Green / 255)));
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break;
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}
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lastPos = GetPoint(lastPos);
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}
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protected void GetBoxColor()
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{
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switch (DrawStyle)
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{
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case DrawStyle.Hue:
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selectedColor.HSB.Saturation = (double)lastPos.X / (clientWidth - 1);
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selectedColor.HSB.Brightness = 1.0 - ((double)lastPos.Y / (clientHeight - 1));
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selectedColor.HSBUpdate();
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break;
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case DrawStyle.Saturation:
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selectedColor.HSB.Hue = (double)lastPos.X / (clientWidth - 1);
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selectedColor.HSB.Brightness = 1.0 - ((double)lastPos.Y / (clientHeight - 1));
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selectedColor.HSBUpdate();
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break;
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case DrawStyle.Brightness:
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selectedColor.HSB.Hue = (double)lastPos.X / (clientWidth - 1);
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selectedColor.HSB.Saturation = 1.0 - ((double)lastPos.Y / (clientHeight - 1));
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selectedColor.HSBUpdate();
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break;
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case DrawStyle.Red:
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selectedColor.RGBA.Blue = Round(255 * (double)lastPos.X / (clientWidth - 1));
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selectedColor.RGBA.Green = Round(255 * (1.0 - ((double)lastPos.Y / (clientHeight - 1))));
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selectedColor.RGBAUpdate();
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break;
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case DrawStyle.Green:
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selectedColor.RGBA.Blue = Round(255 * (double)lastPos.X / (clientWidth - 1));
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selectedColor.RGBA.Red = Round(255 * (1.0 - ((double)lastPos.Y / (clientHeight - 1))));
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selectedColor.RGBAUpdate();
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break;
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case DrawStyle.Blue:
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selectedColor.RGBA.Red = Round(255 * (double)lastPos.X / (clientWidth - 1));
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selectedColor.RGBA.Green = Round(255 * (1.0 - ((double)lastPos.Y / (clientHeight - 1))));
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selectedColor.RGBAUpdate();
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break;
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}
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}
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protected void SetSliderMarker()
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{
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switch (DrawStyle)
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{
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case DrawStyle.Hue:
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lastPos.Y = (clientHeight - 1) - Round((clientHeight - 1) * SelectedColor.HSB.Hue);
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break;
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case DrawStyle.Saturation:
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lastPos.Y = (clientHeight - 1) - Round((clientHeight - 1) * SelectedColor.HSB.Saturation);
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break;
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case DrawStyle.Brightness:
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lastPos.Y = (clientHeight - 1) - Round((clientHeight - 1) * SelectedColor.HSB.Brightness);
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break;
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case DrawStyle.Red:
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lastPos.Y = (clientHeight - 1) - Round((clientHeight - 1) * (double)SelectedColor.RGBA.Red / 255);
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break;
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case DrawStyle.Green:
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lastPos.Y = (clientHeight - 1) - Round((clientHeight - 1) * (double)SelectedColor.RGBA.Green / 255);
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break;
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case DrawStyle.Blue:
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lastPos.Y = (clientHeight - 1) - Round((clientHeight - 1) * (double)SelectedColor.RGBA.Blue / 255);
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break;
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}
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lastPos = GetPoint(lastPos);
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}
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protected void GetSliderColor()
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{
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switch (DrawStyle)
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{
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case DrawStyle.Hue:
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selectedColor.HSB.Hue = 1.0 - ((double)lastPos.Y / (clientHeight - 1));
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selectedColor.HSBUpdate();
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break;
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case DrawStyle.Saturation:
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selectedColor.HSB.Saturation = 1.0 - ((double)lastPos.Y / (clientHeight - 1));
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selectedColor.HSBUpdate();
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break;
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case DrawStyle.Brightness:
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selectedColor.HSB.Brightness = 1.0 - ((double)lastPos.Y / (clientHeight - 1));
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selectedColor.HSBUpdate();
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break;
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case DrawStyle.Red:
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selectedColor.RGBA.Red = 255 - Round(255 * (double)lastPos.Y / (clientHeight - 1));
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selectedColor.RGBAUpdate();
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break;
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case DrawStyle.Green:
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selectedColor.RGBA.Green = 255 - Round(255 * (double)lastPos.Y / (clientHeight - 1));
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selectedColor.RGBAUpdate();
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break;
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case DrawStyle.Blue:
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selectedColor.RGBA.Blue = 255 - Round(255 * (double)lastPos.Y / (clientHeight - 1));
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selectedColor.RGBAUpdate();
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break;
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}
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}
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protected abstract void DrawCrosshair(Graphics g);
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protected abstract void DrawHue();
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protected abstract void DrawSaturation();
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protected abstract void DrawBrightness();
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protected abstract void DrawRed();
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protected abstract void DrawGreen();
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protected abstract void DrawBlue();
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#endregion Protected Methods
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#region Protected Helpers
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protected void GetPointColor(Point point)
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{
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lastPos = point;
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if (this is ColorBox)
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{
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GetBoxColor();
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}
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else
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{
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GetSliderColor();
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}
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}
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protected Point GetPoint(Point point)
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{
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return new Point(point.X.Clamp(0, clientWidth - 1), point.Y.Clamp(0, clientHeight - 1));
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}
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protected int Round(double val)
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{
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int ret_val = (int)val;
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int temp = (int)(val * 100);
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if ((temp % 100) >= 50)
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ret_val += 1;
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return ret_val;
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}
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#endregion Protected Helpers
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}
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} |