358 lines
17 KiB
C#
358 lines
17 KiB
C#
using System;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Ink;
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using System.Windows.Input;
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using System.Windows.Media;
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using Point = System.Windows.Point;
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namespace Ink_Canvas {
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public partial class MainWindow : Window {
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#region Floating Control
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object lastBorderMouseDownObject;
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private void Border_MouseDown(object sender, MouseButtonEventArgs e) {
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lastBorderMouseDownObject = sender;
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}
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bool isStrokeSelectionCloneOn = false;
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private void BorderStrokeSelectionClone_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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if (isStrokeSelectionCloneOn) {
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BorderStrokeSelectionClone.Background = Brushes.Transparent;
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isStrokeSelectionCloneOn = false;
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} else {
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BorderStrokeSelectionClone.Background = new SolidColorBrush(StringToColor("#FF1ED760"));
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isStrokeSelectionCloneOn = true;
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}
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}
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private void BorderStrokeSelectionCloneToNewBoard_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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var strokes = inkCanvas.GetSelectedStrokes();
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inkCanvas.Select(new StrokeCollection());
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strokes = strokes.Clone();
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BtnWhiteBoardAdd_Click(null, null);
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inkCanvas.Strokes.Add(strokes);
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}
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private void BorderStrokeSelectionDelete_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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SymbolIconDelete_MouseUp(sender, e);
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}
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private void GridPenWidthDecrease_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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ChangeStrokeThickness(0.8);
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}
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private void GridPenWidthIncrease_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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ChangeStrokeThickness(1.25);
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}
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private void ChangeStrokeThickness(double multipler) {
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foreach (Stroke stroke in inkCanvas.GetSelectedStrokes()) {
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var newWidth = stroke.DrawingAttributes.Width * multipler;
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var newHeight = stroke.DrawingAttributes.Height * multipler;
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if (newWidth >= DrawingAttributes.MinWidth && newWidth <= DrawingAttributes.MaxWidth
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&& newHeight >= DrawingAttributes.MinHeight && newHeight <= DrawingAttributes.MaxHeight) {
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stroke.DrawingAttributes.Width = newWidth;
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stroke.DrawingAttributes.Height = newHeight;
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}
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}
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}
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private void GridPenWidthRestore_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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foreach (Stroke stroke in inkCanvas.GetSelectedStrokes()) {
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stroke.DrawingAttributes.Width = inkCanvas.DefaultDrawingAttributes.Width;
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stroke.DrawingAttributes.Height = inkCanvas.DefaultDrawingAttributes.Height;
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}
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}
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private void ImageFlipHorizontal_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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Matrix m = new Matrix();
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// Find center of element and then transform to get current location of center
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FrameworkElement fe = e.Source as FrameworkElement;
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Point center = new Point(fe.ActualWidth / 2, fe.ActualHeight / 2);
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center = new Point(inkCanvas.GetSelectionBounds().Left + inkCanvas.GetSelectionBounds().Width / 2,
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inkCanvas.GetSelectionBounds().Top + inkCanvas.GetSelectionBounds().Height / 2);
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center = m.Transform(center); // 转换为矩阵缩放和旋转的中心点
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// Update matrix to reflect translation/rotation
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m.ScaleAt(-1, 1, center.X, center.Y); // 缩放
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StrokeCollection targetStrokes = inkCanvas.GetSelectedStrokes();
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StrokeCollection resultStrokes = targetStrokes.Clone();
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foreach (Stroke stroke in resultStrokes) {
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stroke.Transform(m, false);
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}
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_currentCommitType = CommitReason.Rotate;
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inkCanvas.Strokes.Replace(targetStrokes, resultStrokes);
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_currentCommitType = CommitReason.UserInput;
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isProgramChangeStrokeSelection = true;
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inkCanvas.Select(resultStrokes);
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isProgramChangeStrokeSelection = false;
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//updateBorderStrokeSelectionControlLocation();
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}
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private void ImageFlipVertical_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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Matrix m = new Matrix();
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// Find center of element and then transform to get current location of center
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FrameworkElement fe = e.Source as FrameworkElement;
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Point center = new Point(fe.ActualWidth / 2, fe.ActualHeight / 2);
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center = new Point(inkCanvas.GetSelectionBounds().Left + inkCanvas.GetSelectionBounds().Width / 2,
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inkCanvas.GetSelectionBounds().Top + inkCanvas.GetSelectionBounds().Height / 2);
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center = m.Transform(center); // 转换为矩阵缩放和旋转的中心点
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// Update matrix to reflect translation/rotation
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m.ScaleAt(1, -1, center.X, center.Y); // 缩放
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StrokeCollection targetStrokes = inkCanvas.GetSelectedStrokes();
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StrokeCollection resultStrokes = targetStrokes.Clone();
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foreach (Stroke stroke in resultStrokes) {
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stroke.Transform(m, false);
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}
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_currentCommitType = CommitReason.Rotate;
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inkCanvas.Strokes.Replace(targetStrokes, resultStrokes);
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_currentCommitType = CommitReason.UserInput;
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isProgramChangeStrokeSelection = true;
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inkCanvas.Select(resultStrokes);
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isProgramChangeStrokeSelection = false;
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}
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private void ImageRotate45_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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Matrix m = new Matrix();
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// Find center of element and then transform to get current location of center
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FrameworkElement fe = e.Source as FrameworkElement;
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Point center = new Point(fe.ActualWidth / 2, fe.ActualHeight / 2);
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center = new Point(inkCanvas.GetSelectionBounds().Left + inkCanvas.GetSelectionBounds().Width / 2,
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inkCanvas.GetSelectionBounds().Top + inkCanvas.GetSelectionBounds().Height / 2);
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center = m.Transform(center); // 转换为矩阵缩放和旋转的中心点
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// Update matrix to reflect translation/rotation
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m.RotateAt(45, center.X, center.Y); // 旋转
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StrokeCollection targetStrokes = inkCanvas.GetSelectedStrokes();
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StrokeCollection resultStrokes = targetStrokes.Clone();
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foreach (Stroke stroke in resultStrokes) {
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stroke.Transform(m, false);
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}
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_currentCommitType = CommitReason.Rotate;
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inkCanvas.Strokes.Replace(targetStrokes, resultStrokes);
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_currentCommitType = CommitReason.UserInput;
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isProgramChangeStrokeSelection = true;
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inkCanvas.Select(resultStrokes);
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isProgramChangeStrokeSelection = false;
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}
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private void ImageRotate90_MouseUp(object sender, MouseButtonEventArgs e) {
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if (lastBorderMouseDownObject != sender) return;
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Matrix m = new Matrix();
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// Find center of element and then transform to get current location of center
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FrameworkElement fe = e.Source as FrameworkElement;
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Point center = new Point(fe.ActualWidth / 2, fe.ActualHeight / 2);
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center = new Point(inkCanvas.GetSelectionBounds().Left + inkCanvas.GetSelectionBounds().Width / 2,
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inkCanvas.GetSelectionBounds().Top + inkCanvas.GetSelectionBounds().Height / 2);
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center = m.Transform(center); // 转换为矩阵缩放和旋转的中心点
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// Update matrix to reflect translation/rotation
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m.RotateAt(90, center.X, center.Y); // 旋转
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StrokeCollection targetStrokes = inkCanvas.GetSelectedStrokes();
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StrokeCollection resultStrokes = targetStrokes.Clone();
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foreach (Stroke stroke in resultStrokes) {
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stroke.Transform(m, false);
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}
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_currentCommitType = CommitReason.Rotate;
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inkCanvas.Strokes.Replace(targetStrokes, resultStrokes);
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_currentCommitType = CommitReason.UserInput;
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isProgramChangeStrokeSelection = true;
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inkCanvas.Select(resultStrokes);
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isProgramChangeStrokeSelection = false;
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}
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#endregion
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bool isGridInkCanvasSelectionCoverMouseDown = false;
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StrokeCollection StrokesSelectionClone = new StrokeCollection();
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private void GridInkCanvasSelectionCover_MouseDown(object sender, MouseButtonEventArgs e) {
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isGridInkCanvasSelectionCoverMouseDown = true;
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}
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private void GridInkCanvasSelectionCover_MouseUp(object sender, MouseButtonEventArgs e) {
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if (isGridInkCanvasSelectionCoverMouseDown) {
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isGridInkCanvasSelectionCoverMouseDown = false;
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GridInkCanvasSelectionCover.Visibility = Visibility.Collapsed;
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}
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}
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private void BtnSelect_Click(object sender, RoutedEventArgs e) {
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forceEraser = true;
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drawingShapeMode = 0;
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inkCanvas.IsManipulationEnabled = false;
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if (inkCanvas.EditingMode == InkCanvasEditingMode.Select) {
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if (inkCanvas.GetSelectedStrokes().Count == inkCanvas.Strokes.Count) {
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inkCanvas.EditingMode = InkCanvasEditingMode.Ink;
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inkCanvas.EditingMode = InkCanvasEditingMode.Select;
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} else {
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StrokeCollection selectedStrokes = new StrokeCollection();
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foreach (Stroke stroke in inkCanvas.Strokes) {
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if (stroke.GetBounds().Width > 0 && stroke.GetBounds().Height > 0) {
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selectedStrokes.Add(stroke);
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}
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}
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inkCanvas.Select(selectedStrokes);
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}
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} else {
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inkCanvas.EditingMode = InkCanvasEditingMode.Select;
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}
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}
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double BorderStrokeSelectionControlWidth = 490.0;
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double BorderStrokeSelectionControlHeight = 80.0;
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bool isProgramChangeStrokeSelection = false;
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private void inkCanvas_SelectionChanged(object sender, EventArgs e) {
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if (isProgramChangeStrokeSelection) return;
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if (inkCanvas.GetSelectedStrokes().Count == 0) {
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GridInkCanvasSelectionCover.Visibility = Visibility.Collapsed;
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} else {
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GridInkCanvasSelectionCover.Visibility = Visibility.Visible;
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BorderStrokeSelectionClone.Background = Brushes.Transparent;
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isStrokeSelectionCloneOn = false;
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updateBorderStrokeSelectionControlLocation();
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}
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}
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private void updateBorderStrokeSelectionControlLocation() {
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double borderLeft = (inkCanvas.GetSelectionBounds().Left + inkCanvas.GetSelectionBounds().Right - BorderStrokeSelectionControlWidth) / 2;
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double borderTop = inkCanvas.GetSelectionBounds().Bottom + 15;
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if (borderLeft < 0) borderLeft = 0;
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if (borderTop < 0) borderTop = 0;
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if (Width - borderLeft < BorderStrokeSelectionControlWidth || double.IsNaN(borderLeft)) borderLeft = Width - BorderStrokeSelectionControlWidth;
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if (Height - borderTop < BorderStrokeSelectionControlHeight || double.IsNaN(borderTop)) borderTop = Height - BorderStrokeSelectionControlHeight;
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if (borderTop > 60) borderTop -= 60;
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BorderStrokeSelectionControl.Margin = new Thickness(borderLeft, borderTop, 0, 0);
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}
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private void GridInkCanvasSelectionCover_ManipulationStarting(object sender, ManipulationStartingEventArgs e) {
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e.Mode = ManipulationModes.All;
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}
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private void GridInkCanvasSelectionCover_ManipulationCompleted(object sender, ManipulationCompletedEventArgs e) {
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}
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private void GridInkCanvasSelectionCover_ManipulationDelta(object sender, ManipulationDeltaEventArgs e) {
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try {
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if (dec.Count >= 1) {
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ManipulationDelta md = e.DeltaManipulation;
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Vector trans = md.Translation; // 获得位移矢量
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double rotate = md.Rotation; // 获得旋转角度
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Vector scale = md.Scale; // 获得缩放倍数
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Matrix m = new Matrix();
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// Find center of element and then transform to get current location of center
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FrameworkElement fe = e.Source as FrameworkElement;
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Point center = new Point(fe.ActualWidth / 2, fe.ActualHeight / 2);
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center = new Point(inkCanvas.GetSelectionBounds().Left + inkCanvas.GetSelectionBounds().Width / 2,
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inkCanvas.GetSelectionBounds().Top + inkCanvas.GetSelectionBounds().Height / 2);
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center = m.Transform(center); // 转换为矩阵缩放和旋转的中心点
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// Update matrix to reflect translation/rotation
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m.Translate(trans.X, trans.Y); // 移动
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m.ScaleAt(scale.X, scale.Y, center.X, center.Y); // 缩放
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StrokeCollection strokes = inkCanvas.GetSelectedStrokes();
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if (StrokesSelectionClone.Count != 0) {
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strokes = StrokesSelectionClone;
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} else if (Settings.Gesture.IsEnableTwoFingerRotationOnSelection) {
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m.RotateAt(rotate, center.X, center.Y); // 旋转
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}
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foreach (Stroke stroke in strokes) {
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stroke.Transform(m, false);
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try {
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stroke.DrawingAttributes.Width *= md.Scale.X;
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stroke.DrawingAttributes.Height *= md.Scale.Y;
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} catch { }
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}
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updateBorderStrokeSelectionControlLocation();
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}
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} catch { }
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}
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private void GridInkCanvasSelectionCover_TouchDown(object sender, TouchEventArgs e) {
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}
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private void GridInkCanvasSelectionCover_TouchUp(object sender, TouchEventArgs e) {
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}
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Point lastTouchPointOnGridInkCanvasCover = new Point(0, 0);
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private void GridInkCanvasSelectionCover_PreviewTouchDown(object sender, TouchEventArgs e) {
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dec.Add(e.TouchDevice.Id);
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//设备1个的时候，记录中心点
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if (dec.Count == 1) {
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TouchPoint touchPoint = e.GetTouchPoint(null);
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centerPoint = touchPoint.Position;
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lastTouchPointOnGridInkCanvasCover = touchPoint.Position;
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if (isStrokeSelectionCloneOn) {
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StrokeCollection strokes = inkCanvas.GetSelectedStrokes();
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isProgramChangeStrokeSelection = true;
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inkCanvas.Select(new StrokeCollection());
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StrokesSelectionClone = strokes.Clone();
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inkCanvas.Select(strokes);
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isProgramChangeStrokeSelection = false;
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inkCanvas.Strokes.Add(StrokesSelectionClone);
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}
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}
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}
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private void GridInkCanvasSelectionCover_PreviewTouchUp(object sender, TouchEventArgs e) {
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dec.Remove(e.TouchDevice.Id);
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if (dec.Count >= 1) return;
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isProgramChangeStrokeSelection = false;
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if (lastTouchPointOnGridInkCanvasCover == e.GetTouchPoint(null).Position) {
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if (lastTouchPointOnGridInkCanvasCover.X < inkCanvas.GetSelectionBounds().Left ||
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lastTouchPointOnGridInkCanvasCover.Y < inkCanvas.GetSelectionBounds().Top ||
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lastTouchPointOnGridInkCanvasCover.X > inkCanvas.GetSelectionBounds().Right ||
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lastTouchPointOnGridInkCanvasCover.Y > inkCanvas.GetSelectionBounds().Bottom) {
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inkCanvas.Select(new StrokeCollection());
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StrokesSelectionClone = new StrokeCollection();
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}
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} else if (inkCanvas.GetSelectedStrokes().Count == 0) {
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GridInkCanvasSelectionCover.Visibility = Visibility.Collapsed;
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StrokesSelectionClone = new StrokeCollection();
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} else {
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GridInkCanvasSelectionCover.Visibility = Visibility.Visible;
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StrokesSelectionClone = new StrokeCollection();
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}
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}
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}
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}
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