kriastans/InkCanvasForClass
kriastans/InkCanvasForClass
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InkCanvasForClass/Ink Canvas/MainWindow_cs/MW_TouchEvents.cs

370 lines
17 KiB
C#
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Improve code readability
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using Ink_Canvas.Helpers;
using System;
using System.Collections.Generic;
using System.Linq;
[fix] 合併ICA的變更：將項目格式修改為SDK格式，添加ICC圖標
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using System.Threading.Tasks;
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using System.Windows;
using System.Windows.Controls;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using Point = System.Windows.Point;
namespace Ink_Canvas {
public partial class MainWindow : Window {
#region Multi-Touch
bool isInMultiTouchMode = false;
private void BorderMultiTouchMode_MouseUp(object sender, MouseButtonEventArgs e) {
if (isInMultiTouchMode) {
inkCanvas.StylusDown -= MainWindow_StylusDown;
inkCanvas.StylusMove -= MainWindow_StylusMove;
inkCanvas.StylusUp -= MainWindow_StylusUp;
inkCanvas.TouchDown -= MainWindow_TouchDown;
inkCanvas.TouchDown += Main_Grid_TouchDown;
inkCanvas.EditingMode = InkCanvasEditingMode.Ink;
inkCanvas.Children.Clear();
isInMultiTouchMode = false;
//SymbolIconMultiTouchMode.Symbol = iNKORE.UI.WPF.Modern.Controls.Symbol.People;
} else {
inkCanvas.StylusDown += MainWindow_StylusDown;
inkCanvas.StylusMove += MainWindow_StylusMove;
inkCanvas.StylusUp += MainWindow_StylusUp;
inkCanvas.TouchDown += MainWindow_TouchDown;
[fix] eraser and select funtion in MultiTouchMode
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inkCanvas.TouchDown -= Main_Grid_TouchDown;
[update] 跟随ICA上游代码merge MultiTouchMode fix，并更改了白板右上角文字。
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inkCanvas.EditingMode = InkCanvasEditingMode.None;
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inkCanvas.Children.Clear();
isInMultiTouchMode = true;
//SymbolIconMultiTouchMode.Symbol = iNKORE.UI.WPF.Modern.Controls.Symbol.Contact;
}
}
private void MainWindow_TouchDown(object sender, TouchEventArgs e) {
[fix] about MultiTouchMode
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if (inkCanvas.EditingMode == InkCanvasEditingMode.EraseByPoint
|| inkCanvas.EditingMode == InkCanvasEditingMode.EraseByStroke
|| inkCanvas.EditingMode == InkCanvasEditingMode.Select) return;
[fix] eraser and select funtion in MultiTouchMode
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Improve code readability
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if (!isHidingSubPanelsWhenInking) {
isHidingSubPanelsWhenInking = true;
HideSubPanels(); // 书写时自动隐藏二级菜单
}
double boundWidth = e.GetTouchPoint(null).Bounds.Width;
if (boundWidth > 20) {
inkCanvas.EraserShape = new EllipseStylusShape(boundWidth * 0.75, boundWidth * 0.75);
TouchDownPointsList[e.TouchDevice.Id] = InkCanvasEditingMode.EraseByPoint;
inkCanvas.EditingMode = InkCanvasEditingMode.EraseByPoint;
} else {
[update] 跟随ICA上游代码merge MultiTouchMode fix，并更改了白板右上角文字。
2024-05-09 14:29:00 +08:00
TouchDownPointsList[e.TouchDevice.Id] = InkCanvasEditingMode.None;
inkCanvas.EditingMode = InkCanvasEditingMode.None;
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}
}
private void MainWindow_StylusDown(object sender, StylusDownEventArgs e) {
[fix] about MultiTouchMode
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if (inkCanvas.EditingMode == InkCanvasEditingMode.EraseByPoint
|| inkCanvas.EditingMode == InkCanvasEditingMode.EraseByStroke
|| inkCanvas.EditingMode == InkCanvasEditingMode.Select) return;
[update] 跟随ICA上游代码merge MultiTouchMode fix，并更改了白板右上角文字。
2024-05-09 14:29:00 +08:00
TouchDownPointsList[e.StylusDevice.Id] = InkCanvasEditingMode.None;
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}
[fix] 合併ICA的變更：將項目格式修改為SDK格式，添加ICC圖標
2024-05-11 01:35:32 +08:00
private async void MainWindow_StylusUp(object sender, StylusEventArgs e) {
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try {
inkCanvas.Strokes.Add(GetStrokeVisual(e.StylusDevice.Id).Stroke);
[fix] 合併ICA的變更：將項目格式修改為SDK格式，添加ICC圖標
2024-05-11 01:35:32 +08:00
await Task.Delay(5); // 避免渲染墨迹完成前预览墨迹被删除导致墨迹闪烁
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inkCanvas.Children.Remove(GetVisualCanvas(e.StylusDevice.Id));
inkCanvas_StrokeCollected(inkCanvas, new InkCanvasStrokeCollectedEventArgs(GetStrokeVisual(e.StylusDevice.Id).Stroke));
} catch (Exception ex) {
Label.Content = ex.ToString();
}
try {
StrokeVisualList.Remove(e.StylusDevice.Id);
VisualCanvasList.Remove(e.StylusDevice.Id);
TouchDownPointsList.Remove(e.StylusDevice.Id);
if (StrokeVisualList.Count == 0 || VisualCanvasList.Count == 0 || TouchDownPointsList.Count == 0) {
inkCanvas.Children.Clear();
StrokeVisualList.Clear();
VisualCanvasList.Clear();
TouchDownPointsList.Clear();
}
} catch { }
}
private void MainWindow_StylusMove(object sender, StylusEventArgs e) {
try {
[update] 跟随ICA上游代码merge MultiTouchMode fix，并更改了白板右上角文字。
2024-05-09 14:29:00 +08:00
if (GetTouchDownPointsList(e.StylusDevice.Id) != InkCanvasEditingMode.None) return;
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try {
if (e.StylusDevice.StylusButtons[1].StylusButtonState == StylusButtonState.Down) return;
} catch { }
var strokeVisual = GetStrokeVisual(e.StylusDevice.Id);
var stylusPointCollection = e.GetStylusPoints(this);
foreach (var stylusPoint in stylusPointCollection) {
strokeVisual.Add(new StylusPoint(stylusPoint.X, stylusPoint.Y, stylusPoint.PressureFactor));
}
strokeVisual.Redraw();
} catch { }
}
private StrokeVisual GetStrokeVisual(int id) {
if (StrokeVisualList.TryGetValue(id, out var visual)) {
return visual;
}
var strokeVisual = new StrokeVisual(inkCanvas.DefaultDrawingAttributes.Clone());
StrokeVisualList[id] = strokeVisual;
StrokeVisualList[id] = strokeVisual;
var visualCanvas = new VisualCanvas(strokeVisual);
VisualCanvasList[id] = visualCanvas;
inkCanvas.Children.Add(visualCanvas);
return strokeVisual;
}
private VisualCanvas GetVisualCanvas(int id) {
if (VisualCanvasList.TryGetValue(id, out var visualCanvas)) {
return visualCanvas;
}
return null;
}
private InkCanvasEditingMode GetTouchDownPointsList(int id) {
if (TouchDownPointsList.TryGetValue(id, out var inkCanvasEditingMode)) {
return inkCanvasEditingMode;
}
return inkCanvas.EditingMode;
}
private Dictionary<int, InkCanvasEditingMode> TouchDownPointsList { get; } = new Dictionary<int, InkCanvasEditingMode>();
private Dictionary<int, StrokeVisual> StrokeVisualList { get; } = new Dictionary<int, StrokeVisual>();
private Dictionary<int, VisualCanvas> VisualCanvasList { get; } = new Dictionary<int, VisualCanvas>();
#endregion
[fix] eraser and select funtion in MultiTouchMode
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Improve code readability
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int lastTouchDownTime = 0, lastTouchUpTime = 0;
Point iniP = new Point(0, 0);
bool isLastTouchEraser = false;
private bool forcePointEraser = true;
private void Main_Grid_TouchDown(object sender, TouchEventArgs e) {
[fix] eraser and select funtion in MultiTouchMode
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Improve code readability
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if (!isHidingSubPanelsWhenInking) {
isHidingSubPanelsWhenInking = true;
HideSubPanels(); // 书写时自动隐藏二级菜单
}
if (NeedUpdateIniP()) {
iniP = e.GetTouchPoint(inkCanvas).Position;
}
if (drawingShapeMode == 9 && isFirstTouchCuboid == false) {
MouseTouchMove(iniP);
}
inkCanvas.Opacity = 1;
double boundsWidth = GetTouchBoundWidth(e);
var eraserMultiplier = 1d;
if (!Settings.Advanced.EraserBindTouchMultiplier && Settings.Advanced.IsSpecialScreen) eraserMultiplier = 1 / Settings.Advanced.TouchMultiplier;
if (boundsWidth > BoundsWidth) {
isLastTouchEraser = true;
if (drawingShapeMode == 0 && forceEraser) return;
if (boundsWidth > BoundsWidth * 2.5) {
double k = 1;
switch (Settings.Canvas.EraserSize) {
case 0:
k = 0.5;
break;
case 1:
k = 0.8;
break;
case 3:
k = 1.25;
break;
case 4:
k = 1.8;
break;
}
inkCanvas.EraserShape = new EllipseStylusShape(boundsWidth * 1.5 * k * eraserMultiplier * 0.75, boundsWidth * 1.5 * k * eraserMultiplier * 0.75);
inkCanvas.EditingMode = InkCanvasEditingMode.EraseByPoint;
} else {
if (StackPanelPPTControls.Visibility == Visibility.Visible && inkCanvas.Strokes.Count == 0 && Settings.PowerPointSettings.IsEnableFingerGestureSlideShowControl) {
isLastTouchEraser = false;
inkCanvas.EditingMode = InkCanvasEditingMode.GestureOnly;
inkCanvas.Opacity = 0.1;
} else {
inkCanvas.EraserShape = new EllipseStylusShape(5, 5);
inkCanvas.EditingMode = InkCanvasEditingMode.EraseByStroke;
}
}
} else {
isLastTouchEraser = false;
inkCanvas.EraserShape = forcePointEraser ? new EllipseStylusShape(50, 50) : new EllipseStylusShape(5, 5);
if (forceEraser) return;
inkCanvas.EditingMode = InkCanvasEditingMode.Ink;
}
}
public double GetTouchBoundWidth(TouchEventArgs e) {
var args = e.GetTouchPoint(null).Bounds;
double value;
if (!Settings.Advanced.IsQuadIR) value = args.Width;
else value = Math.Sqrt(args.Width * args.Height); //四边红外
if (Settings.Advanced.IsSpecialScreen) value *= Settings.Advanced.TouchMultiplier;
return value;
}
//记录触摸设备ID
private List<int> dec = new List<int>();
//中心点
System.Windows.Point centerPoint;
InkCanvasEditingMode lastInkCanvasEditingMode = InkCanvasEditingMode.Ink;
bool isSingleFingerDragMode = false;
private void inkCanvas_PreviewTouchDown(object sender, TouchEventArgs e) {
dec.Add(e.TouchDevice.Id);
//设备1个的时候，记录中心点
if (dec.Count == 1) {
TouchPoint touchPoint = e.GetTouchPoint(inkCanvas);
centerPoint = touchPoint.Position;
//记录第一根手指点击时的 StrokeCollection
lastTouchDownStrokeCollection = inkCanvas.Strokes.Clone();
}
//设备两个及两个以上，将画笔功能关闭
if (dec.Count > 1 || isSingleFingerDragMode || !Settings.Gesture.IsEnableTwoFingerGesture) {
if (isInMultiTouchMode || !Settings.Gesture.IsEnableTwoFingerGesture) return;
if (inkCanvas.EditingMode != InkCanvasEditingMode.None && inkCanvas.EditingMode != InkCanvasEditingMode.Select) {
lastInkCanvasEditingMode = inkCanvas.EditingMode;
inkCanvas.EditingMode = InkCanvasEditingMode.None;
}
}
}
private void inkCanvas_PreviewTouchUp(object sender, TouchEventArgs e) {
//手势完成后切回之前的状态
if (dec.Count > 1) {
if (inkCanvas.EditingMode == InkCanvasEditingMode.None) {
inkCanvas.EditingMode = lastInkCanvasEditingMode;
}
}
dec.Remove(e.TouchDevice.Id);
inkCanvas.Opacity = 1;
if (dec.Count == 0) {
if (lastTouchDownStrokeCollection.Count() != inkCanvas.Strokes.Count() &&
!(drawingShapeMode == 9 && !isFirstTouchCuboid)) {
int whiteboardIndex = CurrentWhiteboardIndex;
if (currentMode == 0) {
whiteboardIndex = 0;
}
strokeCollections[whiteboardIndex] = lastTouchDownStrokeCollection;
}
}
}
private void inkCanvas_ManipulationStarting(object sender, ManipulationStartingEventArgs e) {
e.Mode = ManipulationModes.All;
}
private void inkCanvas_ManipulationInertiaStarting(object sender, ManipulationInertiaStartingEventArgs e) {
}
private void Main_Grid_ManipulationCompleted(object sender, ManipulationCompletedEventArgs e) {
if (e.Manipulators.Count() == 0) {
if (forceEraser) return;
inkCanvas.EditingMode = InkCanvasEditingMode.Ink;
}
}
[fix] 合併ICA的變更：將項目格式修改為SDK格式，添加ICC圖標
2024-05-11 01:35:32 +08:00
private void inkCanvas_ManipulationStarted(object sender, ManipulationStartedEventArgs e)
{
if (isInMultiTouchMode || !Settings.Gesture.IsEnableTwoFingerGesture || inkCanvas.Strokes.Count == 0 || dec.Count() < 2) return;
_currentCommitType = CommitReason.Manipulation;
StrokeCollection strokes = inkCanvas.GetSelectedStrokes();
if (strokes.Count != 0)
{
inkCanvas.Strokes.Replace(strokes, strokes.Clone());
}
else
{
var originalStrokes = inkCanvas.Strokes;
var targetStrokes = originalStrokes.Clone();
originalStrokes.Replace(originalStrokes, targetStrokes);
}
_currentCommitType = CommitReason.UserInput;
}
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private void Main_Grid_ManipulationDelta(object sender, ManipulationDeltaEventArgs e) {
if (isInMultiTouchMode || !Settings.Gesture.IsEnableTwoFingerGesture) return;
if ((dec.Count >= 2 && (Settings.PowerPointSettings.IsEnableTwoFingerGestureInPresentationMode || StackPanelPPTControls.Visibility != Visibility.Visible || StackPanelPPTButtons.Visibility == Visibility.Collapsed)) || isSingleFingerDragMode) {
ManipulationDelta md = e.DeltaManipulation;
Vector trans = md.Translation; // 获得位移矢量
Matrix m = new Matrix();
if (Settings.Gesture.IsEnableTwoFingerTranslate)
m.Translate(trans.X, trans.Y); // 移动
if (Settings.Gesture.IsEnableTwoFingerGestureTranslateOrRotation) {
double rotate = md.Rotation; // 获得旋转角度
Vector scale = md.Scale; // 获得缩放倍数
// Find center of element and then transform to get current location of center
FrameworkElement fe = e.Source as FrameworkElement;
Point center = new Point(fe.ActualWidth / 2, fe.ActualHeight / 2);
center = m.Transform(center); // 转换为矩阵缩放和旋转的中心点
if (Settings.Gesture.IsEnableTwoFingerRotation)
m.RotateAt(rotate, center.X, center.Y); // 旋转
if (Settings.Gesture.IsEnableTwoFingerZoom)
m.ScaleAt(scale.X, scale.Y, center.X, center.Y); // 缩放
}
StrokeCollection strokes = inkCanvas.GetSelectedStrokes();
if (strokes.Count != 0) {
foreach (Stroke stroke in strokes) {
stroke.Transform(m, false);
foreach (Circle circle in circles) {
if (stroke == circle.Stroke) {
circle.R = GetDistance(circle.Stroke.StylusPoints[0].ToPoint(), circle.Stroke.StylusPoints[circle.Stroke.StylusPoints.Count / 2].ToPoint()) / 2;
circle.Centroid = new Point((circle.Stroke.StylusPoints[0].X + circle.Stroke.StylusPoints[circle.Stroke.StylusPoints.Count / 2].X) / 2,
(circle.Stroke.StylusPoints[0].Y + circle.Stroke.StylusPoints[circle.Stroke.StylusPoints.Count / 2].Y) / 2);
break;
}
}
if (Settings.Gesture.IsEnableTwoFingerZoom) {
try {
stroke.DrawingAttributes.Width *= md.Scale.X;
stroke.DrawingAttributes.Height *= md.Scale.Y;
} catch { }
}
}
} else {
if (Settings.Gesture.IsEnableTwoFingerZoom) {
foreach (Stroke stroke in inkCanvas.Strokes) {
stroke.Transform(m, false);
try {
stroke.DrawingAttributes.Width *= md.Scale.X;
stroke.DrawingAttributes.Height *= md.Scale.Y;
} catch { }
};
} else {
foreach (Stroke stroke in inkCanvas.Strokes) {
stroke.Transform(m, false);
};
}
foreach (Circle circle in circles) {
circle.R = GetDistance(circle.Stroke.StylusPoints[0].ToPoint(), circle.Stroke.StylusPoints[circle.Stroke.StylusPoints.Count / 2].ToPoint()) / 2;
circle.Centroid = new Point(
(circle.Stroke.StylusPoints[0].X + circle.Stroke.StylusPoints[circle.Stroke.StylusPoints.Count / 2].X) / 2,
(circle.Stroke.StylusPoints[0].Y + circle.Stroke.StylusPoints[circle.Stroke.StylusPoints.Count / 2].Y) / 2
);
};
}
}
}
}
}
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