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improve:墨迹选择

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CJKmkp
2025-09-07 07:53:05 +08:00
parent 9037630990
commit 60b5655574
2 changed files with 108 additions and 40 deletions
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Ink Canvas/MainWindow_cs/MW_SelectionGestures.cs
+78 -38
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@@ -8,6 +8,7 @@ using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Shapes;
using Ink_Canvas.Helpers;
using Point = System.Windows.Point;
namespace Ink_Canvas
@@ -533,8 +534,9 @@ namespace Ink_Canvas
updateBorderStrokeSelectionControlLocation();
}
}
catch
catch (Exception ex)
{
LogHelper.WriteLogToFile($"墨迹ManipulationDelta错误: {ex.Message}", LogHelper.LogType.Error);
}
}
@@ -552,24 +554,33 @@ namespace Ink_Canvas
if (inkCanvas.GetSelectedStrokes().Count > 0 && dec.Count == 1)
{
var currentTouchPoint = e.GetTouchPoint(inkCanvas).Position;
var delta = currentTouchPoint - lastTouchPointOnGridInkCanvasCover;
// 创建变换矩阵
var matrix = new Matrix();
matrix.Translate(delta.X, delta.Y);
// 对选中的墨迹应用变换
var selectedStrokes = inkCanvas.GetSelectedStrokes();
foreach (var stroke in selectedStrokes)
// 检查是否有有效的起始触摸点
if (lastTouchPointOnGridInkCanvasCover != new Point(0, 0))
{
stroke.Transform(matrix, false);
var delta = currentTouchPoint - lastTouchPointOnGridInkCanvasCover;
// 只有当移动距离足够大时才进行拖动（避免微小移动造成的抖动）
if (Math.Abs(delta.X) > 1 || Math.Abs(delta.Y) > 1)
{
// 创建变换矩阵
var matrix = new Matrix();
matrix.Translate(delta.X, delta.Y);
// 对选中的墨迹应用变换
var selectedStrokes = inkCanvas.GetSelectedStrokes();
foreach (var stroke in selectedStrokes)
{
stroke.Transform(matrix, false);
}
// 更新选中栏位置
updateBorderStrokeSelectionControlLocation();
// 更新最后触摸点
lastTouchPointOnGridInkCanvasCover = currentTouchPoint;
}
}
// 更新选中栏位置
updateBorderStrokeSelectionControlLocation();
// 更新最后触摸点
lastTouchPointOnGridInkCanvasCover = currentTouchPoint;
}
}
@@ -579,24 +590,33 @@ namespace Ink_Canvas
if (inkCanvas.GetSelectedStrokes().Count > 0 && dec.Count == 1)
{
var currentTouchPoint = e.GetTouchPoint(inkCanvas).Position;
var delta = currentTouchPoint - lastTouchPointOnGridInkCanvasCover;
// 创建变换矩阵
var matrix = new Matrix();
matrix.Translate(delta.X, delta.Y);
// 对选中的墨迹应用变换
var selectedStrokes = inkCanvas.GetSelectedStrokes();
foreach (var stroke in selectedStrokes)
// 检查是否有有效的起始触摸点
if (lastTouchPointOnGridInkCanvasCover != new Point(0, 0))
{
stroke.Transform(matrix, false);
var delta = currentTouchPoint - lastTouchPointOnGridInkCanvasCover;
// 只有当移动距离足够大时才进行拖动（避免微小移动造成的抖动）
if (Math.Abs(delta.X) > 1 || Math.Abs(delta.Y) > 1)
{
// 创建变换矩阵
var matrix = new Matrix();
matrix.Translate(delta.X, delta.Y);
// 对选中的墨迹应用变换
var selectedStrokes = inkCanvas.GetSelectedStrokes();
foreach (var stroke in selectedStrokes)
{
stroke.Transform(matrix, false);
}
// 更新选中栏位置
updateBorderStrokeSelectionControlLocation();
// 更新最后触摸点
lastTouchPointOnGridInkCanvasCover = currentTouchPoint;
}
}
// 更新选中栏位置
updateBorderStrokeSelectionControlLocation();
// 更新最后触摸点
lastTouchPointOnGridInkCanvasCover = currentTouchPoint;
}
}
@@ -625,8 +645,8 @@ namespace Ink_Canvas
touchPosition.Y >= selectionBounds.Top &&
touchPosition.Y <= selectionBounds.Bottom)
{
// 只有在选择框边界内才允许拖动
// 触摸拖动状态已通过TouchMove事件处理
// 只有在选择框边界内才允许拖动
// 触摸拖动状态已通过TouchMove事件处理
}
else
{
@@ -661,13 +681,32 @@ namespace Ink_Canvas
{
dec.Remove(e.TouchDevice.Id);
if (dec.Count >= 1) return;
// 重置触摸状态
lastTouchPointOnGridInkCanvasCover = new Point(0, 0);
isProgramChangeStrokeSelection = false;
if (lastTouchPointOnGridInkCanvasCover == e.GetTouchPoint(null).Position)
// 检查是否有点击（没有移动）
var currentTouchPoint = e.GetTouchPoint(null).Position;
if (Math.Abs(currentTouchPoint.X - centerPoint.X) < 5 && Math.Abs(currentTouchPoint.Y - centerPoint.Y) < 5)
{
if (!(lastTouchPointOnGridInkCanvasCover.X < inkCanvas.GetSelectionBounds().Left) &&
!(lastTouchPointOnGridInkCanvasCover.Y < inkCanvas.GetSelectionBounds().Top) &&
!(lastTouchPointOnGridInkCanvasCover.X > inkCanvas.GetSelectionBounds().Right) &&
!(lastTouchPointOnGridInkCanvasCover.Y > inkCanvas.GetSelectionBounds().Bottom)) return;
// 点击在选择框内，保持选择状态
if (inkCanvas.GetSelectedStrokes().Count > 0)
{
var selectionBounds = inkCanvas.GetSelectionBounds();
if (currentTouchPoint.X >= selectionBounds.Left &&
currentTouchPoint.X <= selectionBounds.Right &&
currentTouchPoint.Y >= selectionBounds.Top &&
currentTouchPoint.Y <= selectionBounds.Bottom)
{
// 点击在选择框内，保持选择
GridInkCanvasSelectionCover.Visibility = Visibility.Visible;
StrokesSelectionClone = new StrokeCollection();
return;
}
}
// 点击在选择框外，取消选择
inkCanvas.Select(new StrokeCollection());
StrokesSelectionClone = new StrokeCollection();
}
@@ -681,6 +720,7 @@ namespace Ink_Canvas
GridInkCanvasSelectionCover.Visibility = Visibility.Visible;
StrokesSelectionClone = new StrokeCollection();
}
}
private void LassoSelect_Click(object sender, RoutedEventArgs e)