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Added ScrollBar class to support mouse input
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Jaex
parent
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37a6127e57
178
ShareX.ScreenCaptureLib/RegionHelpers/ImageEditorScrollBar.cs
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178
ShareX.ScreenCaptureLib/RegionHelpers/ImageEditorScrollBar.cs
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#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) 2007-2018 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;
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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.Drawing.Drawing2D;
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using System.Windows.Forms;
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namespace ShareX.ScreenCaptureLib
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{
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internal class ImageEditorScrollbar : DrawableObject
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{
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public Orientation Orientation { get; set; }
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public int Thickness { get; set; } = 10;
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public int Margin { get; set; } = 15;
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public int Padding { get; set; } = 2;
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public Rectangle TrackRectangle { get; set; }
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public Rectangle ThumbRectangle { get; set; }
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public int FadeInTime { get; set; } = 150;
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public int FadeOutDelay { get; set; } = 500;
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public int FadeOutTime { get; set; } = 150;
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private bool shouldDraw = true;
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private bool shouldDrawBefore = true;
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private Stopwatch changeTime;
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private int opacityLast = 255;
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private int opacityCurrent = 255;
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private RegionCaptureForm form;
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public ImageEditorScrollbar(Orientation orientation, RegionCaptureForm form)
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{
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Orientation = orientation;
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this.form = form;
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changeTime = Stopwatch.StartNew();
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if (form.ClientArea.Contains(form.CanvasRectangle))
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{
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opacityLast = 0;
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opacityCurrent = 0;
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}
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}
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public void Update()
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{
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Rectangle imageRectangleVisible = form.CanvasRectangle;
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imageRectangleVisible.Intersect(form.ClientArea);
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if (Orientation == Orientation.Horizontal)
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{
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shouldDraw = form.ShapeManager.IsPanning && (form.CanvasRectangle.Left < form.ClientArea.Left || form.CanvasRectangle.Right > form.ClientArea.Right);
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if (shouldDraw != shouldDrawBefore)
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{
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changeTime = Stopwatch.StartNew();
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opacityLast = opacityCurrent;
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}
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shouldDrawBefore = shouldDraw;
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if (shouldDraw)
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{
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opacityCurrent = opacityLast + OpacityGain(changeTime);
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}
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else
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{
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opacityCurrent = opacityLast - OpacityLoss(changeTime);
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}
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opacityCurrent = opacityCurrent.Between(0, 255);
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Visible = opacityCurrent > 0;
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if (Visible)
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{
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int horizontalTrackLength = form.ClientArea.Width - Margin * 2 - Thickness - Padding * 2;
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int horizontalThumbLength = Math.Max(Thickness, (int)Math.Round((float)imageRectangleVisible.Width / form.CanvasRectangle.Width * horizontalTrackLength));
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TrackRectangle = new Rectangle(new Point(Margin - Padding, form.ClientArea.Bottom - (Thickness + Margin) - Padding),
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new Size(horizontalTrackLength + Padding * 2, Thickness + Padding * 2));
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double limitHorizontal = (horizontalTrackLength - horizontalThumbLength) / 2.0f;
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double thumbHorizontalPositionX = Math.Round(TrackRectangle.X + TrackRectangle.Width / 2.0f - (horizontalThumbLength / 2.0f) -
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Math.Min(limitHorizontal, Math.Max(-limitHorizontal, form.CanvasCenterOffset.X / form.CanvasRectangle.Width * horizontalTrackLength)));
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ThumbRectangle = new Rectangle(new Point((int)thumbHorizontalPositionX, form.ClientArea.Bottom - (Thickness + Margin)),
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new Size(horizontalThumbLength, Thickness));
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}
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}
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else
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{
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shouldDraw = form.ShapeManager.IsPanning && (form.CanvasRectangle.Top < form.ClientArea.Top || form.CanvasRectangle.Bottom > form.ClientArea.Bottom);
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if (shouldDraw != shouldDrawBefore)
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{
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changeTime = Stopwatch.StartNew();
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opacityLast = opacityCurrent;
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}
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shouldDrawBefore = shouldDraw;
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if (shouldDraw)
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{
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opacityCurrent = opacityLast + OpacityGain(changeTime);
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}
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else
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{
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opacityCurrent = opacityLast - OpacityLoss(changeTime);
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}
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opacityCurrent = opacityCurrent.Between(0, 255);
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Visible = opacityCurrent > 0;
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if (Visible)
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{
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int verticalTrackLength = form.ClientArea.Height - Margin * 2 - Thickness - Padding * 2;
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int verticalThumbLength = Math.Max(Thickness, (int)Math.Round((float)imageRectangleVisible.Height / form.CanvasRectangle.Height * verticalTrackLength));
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TrackRectangle = new Rectangle(new Point(form.ClientArea.Right - (Thickness + Margin) - Padding, Margin - Padding),
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new Size(Thickness + Padding * 2, verticalTrackLength + Padding * 2));
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double limitVertical = (verticalTrackLength - verticalThumbLength) / 2.0f;
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double thumbVerticalPositionY = Math.Round(TrackRectangle.Y + TrackRectangle.Height / 2.0f - (verticalThumbLength / 2.0f) -
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Math.Min(limitVertical, Math.Max(-limitVertical, form.CanvasCenterOffset.Y / form.CanvasRectangle.Height * verticalTrackLength)));
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ThumbRectangle = new Rectangle(new Point(form.ClientArea.Right - (Thickness + Margin), (int)thumbVerticalPositionY),
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new Size(Thickness, verticalThumbLength));
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}
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}
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}
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public override void OnDraw(Graphics g)
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{
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if (!Visible) return;
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using (Brush trackBrush = new SolidBrush(Color.FromArgb(opacityCurrent, 60, 60, 60)))
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using (Brush thumbBrush = new SolidBrush(Color.FromArgb(opacityCurrent, 130, 130, 130)))
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{
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g.SmoothingMode = SmoothingMode.HighQuality;
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g.DrawCapsule(trackBrush, TrackRectangle);
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g.DrawCapsule(thumbBrush, ThumbRectangle);
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g.SmoothingMode = SmoothingMode.None;
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}
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}
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private int OpacityGain(Stopwatch changeTime)
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{
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return (int)Math.Min(255.0f, 255.0f * changeTime.ElapsedMilliseconds / Math.Max(0, (float)FadeInTime));
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}
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private int OpacityLoss(Stopwatch changeTime)
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{
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int deltaTime = Math.Max(0, (int)changeTime.ElapsedMilliseconds - FadeOutDelay);
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return (int)Math.Min(255.0f, 255.0f * deltaTime / Math.Max(0, (float)FadeOutTime));
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}
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}
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}
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@ -23,177 +23,35 @@
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#endregion License Information (GPL v3)
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using ShareX.HelpersLib;
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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.Drawing.Drawing2D;
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using System.Windows.Forms;
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namespace ShareX.ScreenCaptureLib
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{
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internal class ScrollbarManager
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{
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public bool IsVisible => IsHorizontalScrollbarVisible || IsVerticalScrollbarVisible;
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public bool IsHorizontalScrollbarVisible { get; private set; }
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public bool IsVerticalScrollbarVisible { get; private set; }
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public int Thickness { get; set; } = 10;
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public int Margin { get; set; } = 15;
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public int Padding { get; set; } = 2;
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// Timings in milliseconds
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public int FadeInTime { get; set; } = 150;
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public int FadeOutDelay { get; set; } = 500;
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public int FadeOutTime { get; set; } = 150;
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public bool IsVisible => horizontalScrollbar.Visible || verticalScrollbar.Visible;
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private RegionCaptureForm form;
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private Rectangle horizontalTrackRectangle, horizontalThumbRectangle, verticalTrackRectangle, verticalThumbRectangle;
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private bool shouldDrawHorizontalScrollbar = true;
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private bool shouldDrawVerticalScrollbar = true;
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private bool shouldDrawHorizontalScrollbarBefore = true;
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private bool shouldDrawVerticalScrollbarBefore = true;
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private Stopwatch horizontalScrollbarChangeTime;
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private Stopwatch verticalScrollbarChangeTime;
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private int HorizontalScrollbarOpacityLast = 255;
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private int HorizontalScrollbarOpacityCurrent = 255;
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private int VerticalScrollbarOpacityLast = 255;
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private int VerticalScrollbarOpacityCurrent = 255;
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private ImageEditorScrollbar horizontalScrollbar, verticalScrollbar;
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public ScrollbarManager(RegionCaptureForm regionCaptureForm)
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{
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form = regionCaptureForm;
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horizontalScrollbarChangeTime = Stopwatch.StartNew();
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verticalScrollbarChangeTime = Stopwatch.StartNew();
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if (form.ClientArea.Contains(form.CanvasRectangle))
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{
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HorizontalScrollbarOpacityLast = 0;
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HorizontalScrollbarOpacityCurrent = 0;
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VerticalScrollbarOpacityLast = 0;
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VerticalScrollbarOpacityCurrent = 0;
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}
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horizontalScrollbar = new ImageEditorScrollbar(Orientation.Horizontal, form);
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verticalScrollbar = new ImageEditorScrollbar(Orientation.Vertical, form);
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}
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public void Update()
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{
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Rectangle imageRectangleVisible = form.CanvasRectangle;
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imageRectangleVisible.Intersect(form.ClientArea);
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shouldDrawHorizontalScrollbar = form.ShapeManager.IsPanning &&
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(form.CanvasRectangle.Left < form.ClientArea.Left || form.CanvasRectangle.Right > form.ClientArea.Right);
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if (shouldDrawHorizontalScrollbar != shouldDrawHorizontalScrollbarBefore)
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{
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horizontalScrollbarChangeTime = Stopwatch.StartNew();
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HorizontalScrollbarOpacityLast = HorizontalScrollbarOpacityCurrent;
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}
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shouldDrawHorizontalScrollbarBefore = shouldDrawHorizontalScrollbar;
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if (shouldDrawHorizontalScrollbar)
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{
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HorizontalScrollbarOpacityCurrent = HorizontalScrollbarOpacityLast + OpacityGain(horizontalScrollbarChangeTime);
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}
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else
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{
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HorizontalScrollbarOpacityCurrent = HorizontalScrollbarOpacityLast - OpacityLoss(horizontalScrollbarChangeTime);
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}
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HorizontalScrollbarOpacityCurrent = HorizontalScrollbarOpacityCurrent.Between(0, 255);
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IsHorizontalScrollbarVisible = HorizontalScrollbarOpacityCurrent > 0;
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if (IsHorizontalScrollbarVisible)
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{
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int horizontalTrackLength = form.ClientArea.Width - Margin * 2 - Thickness - Padding * 2;
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int horizontalThumbLength = Math.Max(Thickness, (int)Math.Round((float)imageRectangleVisible.Width / form.CanvasRectangle.Width * horizontalTrackLength));
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horizontalTrackRectangle = new Rectangle(new Point(Margin - Padding, form.ClientArea.Bottom - (Thickness + Margin) - Padding),
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new Size(horizontalTrackLength + Padding * 2, Thickness + Padding * 2));
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double limitHorizontal = (horizontalTrackLength - horizontalThumbLength) / 2.0f;
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double thumbHorizontalPositionX = Math.Round(horizontalTrackRectangle.X + horizontalTrackRectangle.Width / 2.0f - (horizontalThumbLength / 2.0f) -
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Math.Min(limitHorizontal, Math.Max(-limitHorizontal, form.CanvasCenterOffset.X / form.CanvasRectangle.Width * horizontalTrackLength)));
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horizontalThumbRectangle = new Rectangle(new Point((int)thumbHorizontalPositionX, form.ClientArea.Bottom - (Thickness + Margin)),
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new Size(horizontalThumbLength, Thickness));
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}
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shouldDrawVerticalScrollbar = form.ShapeManager.IsPanning &&
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(form.CanvasRectangle.Top < form.ClientArea.Top || form.CanvasRectangle.Bottom > form.ClientArea.Bottom);
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if (shouldDrawVerticalScrollbar != shouldDrawVerticalScrollbarBefore)
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{
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verticalScrollbarChangeTime = Stopwatch.StartNew();
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VerticalScrollbarOpacityLast = VerticalScrollbarOpacityCurrent;
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}
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shouldDrawVerticalScrollbarBefore = shouldDrawVerticalScrollbar;
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if (shouldDrawVerticalScrollbar)
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{
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VerticalScrollbarOpacityCurrent = VerticalScrollbarOpacityLast + OpacityGain(verticalScrollbarChangeTime);
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}
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else
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{
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VerticalScrollbarOpacityCurrent = VerticalScrollbarOpacityLast - OpacityLoss(verticalScrollbarChangeTime);
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}
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VerticalScrollbarOpacityCurrent = VerticalScrollbarOpacityCurrent.Between(0, 255);
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IsVerticalScrollbarVisible = VerticalScrollbarOpacityCurrent > 0;
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if (IsVerticalScrollbarVisible)
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{
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int verticalTrackLength = form.ClientArea.Height - Margin * 2 - Thickness - Padding * 2;
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int verticalThumbLength = Math.Max(Thickness, (int)Math.Round((float)imageRectangleVisible.Height / form.CanvasRectangle.Height * verticalTrackLength));
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verticalTrackRectangle = new Rectangle(new Point(form.ClientArea.Right - (Thickness + Margin) - Padding, Margin - Padding),
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new Size(Thickness + Padding * 2, verticalTrackLength + Padding * 2));
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double limitVertical = (verticalTrackLength - verticalThumbLength) / 2.0f;
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double thumbVerticalPositionY = Math.Round(verticalTrackRectangle.Y + verticalTrackRectangle.Height / 2.0f - (verticalThumbLength / 2.0f) -
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Math.Min(limitVertical, Math.Max(-limitVertical, form.CanvasCenterOffset.Y / form.CanvasRectangle.Height * verticalTrackLength)));
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verticalThumbRectangle = new Rectangle(new Point(form.ClientArea.Right - (Thickness + Margin), (int)thumbVerticalPositionY),
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new Size(Thickness, verticalThumbLength));
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}
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horizontalScrollbar.Update();
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verticalScrollbar.Update();
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}
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public void Draw(Graphics g)
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{
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if (IsVisible)
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{
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if (IsHorizontalScrollbarVisible)
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{
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using (Brush trackBrush = new SolidBrush(Color.FromArgb(HorizontalScrollbarOpacityCurrent, 60, 60, 60)))
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using (Brush thumbBrush = new SolidBrush(Color.FromArgb(HorizontalScrollbarOpacityCurrent, 130, 130, 130)))
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{
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g.SmoothingMode = SmoothingMode.HighQuality;
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g.DrawCapsule(trackBrush, horizontalTrackRectangle);
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g.DrawCapsule(thumbBrush, horizontalThumbRectangle);
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g.SmoothingMode = SmoothingMode.None;
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}
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}
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if (IsVerticalScrollbarVisible)
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{
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using (Brush trackBrush = new SolidBrush(Color.FromArgb(VerticalScrollbarOpacityCurrent, 60, 60, 60)))
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using (Brush thumbBrush = new SolidBrush(Color.FromArgb(VerticalScrollbarOpacityCurrent, 130, 130, 130)))
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{
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g.SmoothingMode = SmoothingMode.HighQuality;
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g.DrawCapsule(trackBrush, verticalTrackRectangle);
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g.DrawCapsule(thumbBrush, verticalThumbRectangle);
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g.SmoothingMode = SmoothingMode.None;
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}
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}
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}
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}
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private int OpacityGain(Stopwatch changeTime)
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{
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return (int)Math.Min(255.0f, 255.0f * changeTime.ElapsedMilliseconds / Math.Max(0, (float)FadeInTime));
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}
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private int OpacityLoss(Stopwatch changeTime)
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{
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int deltaTime = Math.Max(0, (int)changeTime.ElapsedMilliseconds - FadeOutDelay);
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return (int)Math.Min(255.0f, 255.0f * deltaTime / Math.Max(0, (float)FadeOutTime));
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horizontalScrollbar.OnDraw(g);
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verticalScrollbar.OnDraw(g);
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}
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}
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}
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@ -126,6 +126,7 @@
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<DependentUpon>StickerPackForm.cs</DependentUpon>
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</Compile>
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<Compile Include="RegionHelpers\ButtonObject.cs" />
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<Compile Include="RegionHelpers\ImageEditorScrollbar.cs" />
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<Compile Include="RegionHelpers\ScrollbarManager.cs" />
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<Compile Include="Shapes\AnnotationOptions.cs" />
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<Compile Include="Enums.cs" />
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