优化温差图模式下矩形绘制逻辑:确保矩形区左上点和右下点符合min/max规则,严格按照用户要求实现
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@@ -1291,21 +1291,40 @@ namespace JoyD.Windows.CS
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float scaledHalfBrushSizeX = _currentBrushSize / 2 * scaleX;
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float scaledHalfBrushSizeY = _currentBrushSize / 2 * scaleY;
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// 计算起始点和结束点
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Point startPoint = new Point(
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(int)(_rectangleStartPoint.X),
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(int)(_rectangleStartPoint.Y)
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// 计算光标块的左上点和右下点
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Point cursorTopLeft = new Point(
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(int)(currentImagePoint.X - scaledHalfBrushSizeX),
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(int)(currentImagePoint.Y - scaledHalfBrushSizeY)
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);
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Point endPoint = new Point(
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Point cursorBottomRight = new Point(
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(int)(currentImagePoint.X + scaledHalfBrushSizeX),
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(int)(currentImagePoint.Y + scaledHalfBrushSizeY)
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);
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// 无论绘制方向如何,都确保左上角为起始点
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int x = Math.Min(startPoint.X, endPoint.X);
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int y = Math.Min(startPoint.Y, endPoint.Y);
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int width = Math.Abs(endPoint.X - startPoint.X);
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int height = Math.Abs(endPoint.Y - startPoint.Y);
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// 起笔方块的右下点
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Point startBottomRight = new Point(
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_rectangleStartPoint.X + (int)(_currentBrushSize * scaleX),
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_rectangleStartPoint.Y + (int)(_currentBrushSize * scaleY)
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);
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// 确保矩形区有左上和右下两个点
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// 矩形区左上点=min(矩形区左上点,光标块的左上点)
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Point rectTopLeft = new Point(
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Math.Min(_rectangleStartPoint.X, cursorTopLeft.X),
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Math.Min(_rectangleStartPoint.Y, cursorTopLeft.Y)
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);
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// 矩形区右下点=max(矩形区右下点,光标块的右下点)
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Point rectBottomRight = new Point(
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Math.Max(startBottomRight.X, cursorBottomRight.X),
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Math.Max(startBottomRight.Y, cursorBottomRight.Y)
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);
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// 计算矩形坐标和大小
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int x = rectTopLeft.X;
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int y = rectTopLeft.Y;
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int width = rectBottomRight.X - rectTopLeft.X;
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int height = rectBottomRight.Y - rectTopLeft.Y;
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Rectangle rect = new Rectangle(x, y, width, height);
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