Beispiel #1
0
        protected override void OnMouseDown(MouseEventArgs e)
        {
            if (GuiUtil.PtInRect(e.X, e.Y, this.ClientRectangle) == false)
            {
                // 防止在卷滚条上单击后拖动造成副作用
                goto END1;
            }

            this.Capture = true;

            this.Focus();

            // Graphics g = Graphics.FromHwnd(this.Handle);
            // g.TransformPoints(System.Drawing.Drawing2D.CoordinateSpace.Page, System.Drawing.Drawing2D.CoordinateSpace.World, pts);
            PointF p1 = ScreenToPhysic(new Point(e.X, e.Y));

            // 屏幕坐标
            _startHit = this.HitTest(
                p1.X,
                p1.Y);

END1:
            base.OnMouseDown(e);
        }
Beispiel #2
0
        // parameters:
        //      x   内部坐标
        HitTestResult HitTest(float x, float y)
        {
            HitTestResult result = new HitTestResult();
            result.X = x;
            result.Y = y;
            result.CornerType = CornerType.None;

            if (this.Image == null)
                return result;

            Rectangle display_rect = GetPictureBoxZoomSize();
            float x_ratio = (float)display_rect.Width / (float)this.Image.Width;
            float scale_ratio = (float)1 / x_ratio;

            // 左上
            RectangleF rect = GetBoxRect(_points[0], scale_ratio);
            if (GuiUtil.PtInRect(x,
    y,
    rect) == true)
            {
                result.CornerType = CornerType.LeftTop;
                return result;
            }

            // 右上
            rect = GetBoxRect(_points[1], scale_ratio);
            if (GuiUtil.PtInRect(x,
    y,
    rect) == true)
            {
                result.CornerType = CornerType.RightTop;
                return result;
            }

            // 右下
            rect = GetBoxRect(_points[2], scale_ratio);
            if (GuiUtil.PtInRect(x,
    y,
    rect) == true)
            {
                result.CornerType = CornerType.RightBottom;
                return result;
            }

            // 左下
            rect = GetBoxRect(_points[3], scale_ratio);
            if (GuiUtil.PtInRect(x,
    y,
    rect) == true)
            {
                result.CornerType = CornerType.LeftBottom;
                return result;
            }

            return result;
        }
Beispiel #3
0
        protected override void OnMouseUp(MouseEventArgs e)
        {
            this.Capture = false;
            base.OnMouseUp(e);

            if (_startHit != null && _startHit.CornerType != CornerType.None)
            {
                PointF p1 = ScreenToPhysic(new Point(e.X, e.Y));

                ChangeCornerPosition(_startHit.CornerType, Convert.ToInt32(p1.X), Convert.ToInt32(p1.Y));
            }

            _startHit = null;
        }
Beispiel #4
0
        protected override void OnMouseDown(MouseEventArgs e)
        {
            if (GuiUtil.PtInRect(e.X, e.Y, this.ClientRectangle) == false)
            {
                // 防止在卷滚条上单击后拖动造成副作用
                goto END1;
            }

            this.Capture = true;

            this.Focus();

            // Graphics g = Graphics.FromHwnd(this.Handle);
            // g.TransformPoints(System.Drawing.Drawing2D.CoordinateSpace.Page, System.Drawing.Drawing2D.CoordinateSpace.World, pts);
            PointF p1 = ScreenToPhysic(new Point(e.X, e.Y));

            // 屏幕坐标
            _startHit = this.HitTest(
                p1.X,
                p1.Y);

        END1:
            base.OnMouseDown(e);
        }