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优化了画布平移、缩放、改变尺寸

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fengjiayi
2024-09-10 11:49:56 +08:00
parent ce947d4472
commit ec6e09ced1
6 changed files with 92 additions and 178 deletions
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147
WorkBench/MainWindow.xaml.cs
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@@ -221,9 +221,11 @@ namespace Serein.WorkBench
var logTextWriter = new LogTextWriter(WriteLog);
Console.SetOut(logTextWriter);
//transform = new TranslateTransform();
//FlowChartCanvas.RenderTransform = transform;
UIInit();
}
private void UIInit()
{
canvasTransformGroup = new TransformGroup();
scaleTransform = new ScaleTransform();
translateTransform = new TranslateTransform();
@@ -232,6 +234,7 @@ namespace Serein.WorkBench
canvasTransformGroup.Children.Add(translateTransform);
FlowChartCanvas.RenderTransform = canvasTransformGroup;
FlowChartCanvas.RenderTransformOrigin = new Point(0.5, 0.5);
}
@@ -1164,9 +1167,6 @@ namespace Serein.WorkBench
((UIElement)sender).CaptureMouse(); // 捕获鼠标
}
/// <summary>
/// 控件的鼠标移动事件，根据鼠标拖动更新控件的位置。
/// </summary>
@@ -1203,6 +1203,7 @@ namespace Serein.WorkBench
}
}
/// <summary>
/// 调整FlowChartCanvas的尺寸，确保显示所有控件。
/// </summary>
@@ -1284,7 +1285,9 @@ namespace Serein.WorkBench
/// <summary>
/// FlowChartCanvas中移动时处理，用于实时更新连接线的终点位置。
/// 鼠标在画布移动。
/// 连接状态下，实时更新连接线的终点位置。
/// 移动画布状态下，移动画布。
/// </summary>
private void FlowChartCanvas_MouseMove(object sender, MouseEventArgs e)
{
@@ -1667,33 +1670,13 @@ namespace Serein.WorkBench
if (Keyboard.IsKeyDown(Key.LeftCtrl) || Keyboard.IsKeyDown(Key.RightCtrl))
{
if (e.Delta < 0 && scaleTransform.ScaleX < 0.4) return;
if (e.Delta > 0 && scaleTransform.ScaleX > 3.0) return;
if (e.Delta < 0 && scaleTransform.ScaleX < 0.2) return;
if (e.Delta > 0 && scaleTransform.ScaleX > 2.0) return;
double scale = e.Delta > 0 ? 0.1 : -0.1;
scaleTransform.ScaleX += scale;
scaleTransform.ScaleY += scale;
//AdjustCanvasSize();
//double zoomFactor = e.Delta > 0 ? 1.1 : 0.9;
//// 获取鼠标相对于Canvas的位置
//Point mousePosition = e.GetPosition(this);
//// 计算缩放后的Canvas中心位置
//double absoluteX = mousePosition.X * scaleTransform.ScaleX;
//double absoluteY = mousePosition.Y * scaleTransform.ScaleY;
//// 应用缩放
//scaleTransform.ScaleX *= zoomFactor;
//scaleTransform.ScaleY *= zoomFactor;
//// 平移，使缩放中心保持在鼠标光标处
//translateTransform.X = mousePosition.X - absoluteX * zoomFactor;
//translateTransform.Y = mousePosition.Y - absoluteY * zoomFactor;
//// 调整画布大小，使其始终占据整个容器
//AdjustCanvasSizeToContainer();
}
}
@@ -1795,84 +1778,92 @@ namespace Serein.WorkBench
#region 动态调整区域大小
private void Thumb_DragDelta_TopLeft(object sender, DragDeltaEventArgs e)
{
// 从左上角调整大小
double newWidth = Math.Max(FlowChartCanvas.ActualWidth - e.HorizontalChange, 0);
double newHeight = Math.Max(FlowChartCanvas.ActualHeight - e.VerticalChange, 0);
//private void Thumb_DragDelta_TopLeft(object sender, DragDeltaEventArgs e)
//{
// // 从左上角调整大小
// double newWidth = Math.Max(FlowChartCanvas.ActualWidth - e.HorizontalChange, 0);
// double newHeight = Math.Max(FlowChartCanvas.ActualHeight - e.VerticalChange, 0);
FlowChartCanvas.Width = newWidth;
FlowChartCanvas.Height = newHeight;
// FlowChartCanvas.Width = newWidth;
// FlowChartCanvas.Height = newHeight;
Canvas.SetLeft(FlowChartCanvas, Canvas.GetLeft(FlowChartCanvas) + e.HorizontalChange);
Canvas.SetTop(FlowChartCanvas, Canvas.GetTop(FlowChartCanvas) + e.VerticalChange);
}
// Canvas.SetLeft(FlowChartCanvas, Canvas.GetLeft(FlowChartCanvas) + e.HorizontalChange);
// Canvas.SetTop(FlowChartCanvas, Canvas.GetTop(FlowChartCanvas) + e.VerticalChange);
//}
private void Thumb_DragDelta_TopRight(object sender, DragDeltaEventArgs e)
{
// 从右上角调整大小
double newWidth = Math.Max(FlowChartCanvas.ActualWidth + e.HorizontalChange, 0);
double newHeight = Math.Max(FlowChartCanvas.ActualHeight - e.VerticalChange, 0);
//private void Thumb_DragDelta_TopRight(object sender, DragDeltaEventArgs e)
//{
// // 从右上角调整大小
// double newWidth = Math.Max(FlowChartCanvas.ActualWidth + e.HorizontalChange, 0);
// double newHeight = Math.Max(FlowChartCanvas.ActualHeight - e.VerticalChange, 0);
FlowChartCanvas.Width = newWidth;
FlowChartCanvas.Height = newHeight;
// FlowChartCanvas.Width = newWidth;
// FlowChartCanvas.Height = newHeight;
Canvas.SetTop(FlowChartCanvas, Canvas.GetTop(FlowChartCanvas) + e.VerticalChange);
}
// Canvas.SetTop(FlowChartCanvas, Canvas.GetTop(FlowChartCanvas) + e.VerticalChange);
//}
private void Thumb_DragDelta_BottomLeft(object sender, DragDeltaEventArgs e)
{
// 从左下角调整大小
double newWidth = Math.Max(FlowChartCanvas.ActualWidth - e.HorizontalChange, 0);
double newHeight = Math.Max(FlowChartCanvas.ActualHeight + e.VerticalChange, 0);
//private void Thumb_DragDelta_BottomLeft(object sender, DragDeltaEventArgs e)
//{
// // 从左下角调整大小
// double newWidth = Math.Max(FlowChartCanvas.ActualWidth - e.HorizontalChange, 0);
// double newHeight = Math.Max(FlowChartCanvas.ActualHeight + e.VerticalChange, 0);
FlowChartCanvas.Width = newWidth;
FlowChartCanvas.Height = newHeight;
// FlowChartCanvas.Width = newWidth;
// FlowChartCanvas.Height = newHeight;
Canvas.SetLeft(FlowChartCanvas, Canvas.GetLeft(FlowChartCanvas) + e.HorizontalChange);
}
// Canvas.SetLeft(FlowChartCanvas, Canvas.GetLeft(FlowChartCanvas) + e.HorizontalChange);
//}
private void Thumb_DragDelta_BottomRight(object sender, DragDeltaEventArgs e)
{
// 从右下角调整大小
double newWidth = Math.Max(FlowChartCanvas.ActualWidth + e.HorizontalChange, 0);
double newHeight = Math.Max(FlowChartCanvas.ActualHeight + e.VerticalChange, 0);
double newWidth = Math.Max(FlowChartCanvas.ActualWidth + e.HorizontalChange * scaleTransform.ScaleX, 0);
double newHeight = Math.Max(FlowChartCanvas.ActualHeight + e.VerticalChange * scaleTransform.ScaleY, 0);
newWidth = newWidth < 400 ? 400 : newWidth;
newHeight = newHeight < 400 ? 400 : newHeight;
FlowChartCanvas.Width = newWidth;
FlowChartCanvas.Height = newHeight;
}
private void Thumb_DragDelta_Left(object sender, DragDeltaEventArgs e)
{
// 从左侧调整大小
double newWidth = Math.Max(FlowChartCanvas.ActualWidth - e.HorizontalChange, 0);
//private void Thumb_DragDelta_Left(object sender, DragDeltaEventArgs e)
//{
// // 从左侧调整大小
// double newWidth = Math.Max(FlowChartCanvas.ActualWidth - e.HorizontalChange, 0);
FlowChartCanvas.Width = newWidth;
Canvas.SetLeft(FlowChartCanvas, Canvas.GetLeft(FlowChartCanvas) + e.HorizontalChange);
}
// FlowChartCanvas.Width = newWidth;
// Canvas.SetLeft(FlowChartCanvas, Canvas.GetLeft(FlowChartCanvas) + e.HorizontalChange);
//}
private void Thumb_DragDelta_Right(object sender, DragDeltaEventArgs e)
{
//从右侧调整大小
double newWidth = Math.Max(FlowChartCanvas.ActualWidth + e.HorizontalChange, 0);
double newWidth = Math.Max(FlowChartCanvas.ActualWidth + e.HorizontalChange * scaleTransform.ScaleX, 0);
newWidth = newWidth < 400 ? 400 : newWidth;
FlowChartCanvas.Width = newWidth;
}
private void Thumb_DragDelta_Top(object sender, DragDeltaEventArgs e)
{
// 从顶部调整大小
double newHeight = Math.Max(FlowChartCanvas.ActualHeight - e.VerticalChange, 0);
FlowChartCanvas.Height = newHeight;
Canvas.SetTop(FlowChartCanvas, Canvas.GetTop(FlowChartCanvas) + e.VerticalChange);
}
//private void Thumb_DragDelta_Top(object sender, DragDeltaEventArgs e)
//{
// // 从顶部调整大小
// double newHeight = Math.Max(FlowChartCanvas.ActualHeight - e.VerticalChange, 0);
// FlowChartCanvas.Height = newHeight;
// Canvas.SetTop(FlowChartCanvas, Canvas.GetTop(FlowChartCanvas) + e.VerticalChange);
//}
private void Thumb_DragDelta_Bottom(object sender, DragDeltaEventArgs e)
{
// 从底部调整大小
double newHeight = Math.Max(FlowChartCanvas.ActualHeight + e.VerticalChange, 0);
double newHeight = Math.Max(FlowChartCanvas.ActualHeight + e.VerticalChange * scaleTransform.ScaleY, 0);
newHeight = newHeight < 400 ? 400 : newHeight;
FlowChartCanvas.Height = newHeight;
}