/// <summary>
/// 在画布按照snappoint重画
/// </summary>
/// <param name="snappoint"></param>
void RepaintSnappoint(ISnapPoint snappoint)
{
if (snappoint == null)
{
return;
}
CanvasWrapper dc = new CanvasWrapper(this, Graphics.FromHwnd(Handle), ClientRectangle);
snappoint.Draw(dc);
dc.Graphics.Dispose();
dc.Dispose();
} /// <summary>
} /// <summary>
/// 在画布按照IDrawObject重画
/// </summary>
/// <param name="obj"></param>
void RepaintObject(IDrawObject obj)
{
if (obj == null)
{
return;
}
CanvasWrapper dc = new CanvasWrapper(this, Graphics.FromHwnd(Handle), ClientRectangle);
RectangleF invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(dc, obj.GetBoundingRect(dc)));
obj.Draw(dc, invalidaterect);
dc.Graphics.Dispose();
dc.Dispose();
}
protected override void OnPaint(PaintEventArgs e)
{
CommonTools.Tracing.StartTrack(Program.TracePaint);
ClearPens();
e.Graphics.SmoothingMode = m_smoothingMode;
CanvasWrapper dc = new CanvasWrapper(this, e.Graphics, ClientRectangle);
Rectangle cliprectangle = e.ClipRectangle;
if (m_staticImage == null)
{
cliprectangle = ClientRectangle;
m_staticImage = new Bitmap(ClientRectangle.Width, ClientRectangle.Height);
m_staticDirty = true;
}
RectangleF r = ScreenUtils.ToUnitNormalized(dc, cliprectangle);
if (float.IsNaN(r.Width) || float.IsInfinity(r.Width))
{
r = ScreenUtils.ToUnitNormalized(dc, cliprectangle);
}
if (m_staticDirty)
{
m_staticDirty = false;
CanvasWrapper dcStatic = new CanvasWrapper(this, Graphics.FromImage(m_staticImage), ClientRectangle);
dcStatic.Graphics.SmoothingMode = m_smoothingMode;
m_model.BackgroundLayer.Draw(dcStatic, r);
if (m_model.GridLayer.Enabled)
m_model.GridLayer.Draw(dcStatic, r);
PointF nullPoint = ToScreen(new UnitPoint(0, 0));
dcStatic.Graphics.DrawLine(Pens.Blue, nullPoint.X - 10, nullPoint.Y, nullPoint.X + 10, nullPoint.Y);
dcStatic.Graphics.DrawLine(Pens.Blue, nullPoint.X, nullPoint.Y - 10, nullPoint.X, nullPoint.Y + 10);
ICanvasLayer[] layers = m_model.Layers;
for (int layerindex = layers.Length - 1; layerindex >= 0; layerindex--)
{
if (layers[layerindex] != m_model.ActiveLayer && layers[layerindex].Visible)
layers[layerindex].Draw(dcStatic, r);
}
if (m_model.ActiveLayer != null)
m_model.ActiveLayer.Draw(dcStatic, r);
dcStatic.Dispose();
}
e.Graphics.DrawImage(m_staticImage, cliprectangle, cliprectangle, GraphicsUnit.Pixel);
foreach (IDrawObject drawobject in m_model.SelectedObjects)
drawobject.Draw(dc, r);
if (m_newObject != null)
m_newObject.Draw(dc, r);
if (m_snappoint != null)
m_snappoint.Draw(dc);
if (m_selection != null)
{
m_selection.Reset();
m_selection.SetMousePoint(e.Graphics, this.PointToClient(Control.MousePosition));
}
if (m_moveHelper.IsEmpty == false)
m_moveHelper.DrawObjects(dc, r);
if (m_nodeMoveHelper.IsEmpty == false)
m_nodeMoveHelper.DrawObjects(dc, r);
dc.Dispose();
ClearPens();
CommonTools.Tracing.EndTrack(Program.TracePaint, "OnPaint complete");
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (m_selection != null)
{
Graphics dc = Graphics.FromHwnd(Handle);
m_selection.SetMousePoint(dc, new PointF(e.X, e.Y));
dc.Dispose();
return;
}
if (m_commandType == eCommandType.pan && e.Button == MouseButtons.Left)
{
m_dragOffset.X = -(m_mousedownPoint.X - e.X);
m_dragOffset.Y = -(m_mousedownPoint.Y - e.Y);
m_lastCenterPoint = CenterPointUnit();
DoInvalidate(true);
}
UnitPoint mousepoint;
UnitPoint unitpoint = ToUnit(new PointF(e.X, e.Y));
if (m_commandType == eCommandType.draw || m_commandType == eCommandType.move || m_nodeMoveHelper.IsEmpty == false)
{
Rectangle invalidaterect = Rectangle.Empty;
ISnapPoint newsnap = null;
mousepoint = GetMousePoint();
if (RunningSnapsEnabled)
newsnap = m_model.SnapPoint(m_canvaswrapper, mousepoint, m_runningSnapTypes, null);
if (newsnap == null)
newsnap = m_model.GridLayer.SnapPoint(m_canvaswrapper, mousepoint, null);
if ((m_snappoint != null) && ((newsnap == null) || (newsnap.SnapPoint != m_snappoint.SnapPoint) || m_snappoint.GetType() != newsnap.GetType()))
{
invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, m_snappoint.BoundingRect));
invalidaterect.Inflate(2, 2);
RepaintStatic(invalidaterect); // remove old snappoint
m_snappoint = newsnap;
}
if (m_commandType == eCommandType.move)
Invalidate(invalidaterect);
if (m_snappoint == null)
m_snappoint = newsnap;
}
m_owner.SetPositionInfo(unitpoint);
m_owner.SetSnapInfo(m_snappoint);
//UnitPoint mousepoint;
if (m_snappoint != null)
mousepoint = m_snappoint.SnapPoint;
else
mousepoint = GetMousePoint();
if (m_newObject != null)
{
Rectangle invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, m_newObject.GetBoundingRect(m_canvaswrapper)));
invalidaterect.Inflate(2, 2);
RepaintStatic(invalidaterect);
m_newObject.OnMouseMove(m_canvaswrapper, mousepoint);
RepaintObject(m_newObject);
}
if (m_snappoint != null)
RepaintSnappoint(m_snappoint);
if (m_moveHelper.HandleMouseMoveForMove(mousepoint))
Refresh(); //Invalidate();
RectangleF rNoderect = m_nodeMoveHelper.HandleMouseMoveForNode(mousepoint);
if (rNoderect != RectangleF.Empty)
{
Rectangle invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, rNoderect));
RepaintStatic(invalidaterect);
CanvasWrapper dc = new CanvasWrapper(this, Graphics.FromHwnd(Handle), ClientRectangle);
dc.Graphics.Clip = new Region(ClientRectangle);
//m_nodeMoveHelper.DrawOriginalObjects(dc, rNoderect);
m_nodeMoveHelper.DrawObjects(dc, rNoderect);
if (m_snappoint != null)
RepaintSnappoint(m_snappoint);
dc.Graphics.Dispose();
dc.Dispose();
}
}
void RepaintSnappoint(ISnapPoint snappoint)
{
if (snappoint == null)
return;
CanvasWrapper dc = new CanvasWrapper(this, Graphics.FromHwnd(Handle), ClientRectangle);
snappoint.Draw(dc);
dc.Graphics.Dispose();
dc.Dispose();
}
void RepaintObject(IDrawObject obj)
{
if (obj == null)
return;
CanvasWrapper dc = new CanvasWrapper(this, Graphics.FromHwnd(Handle), ClientRectangle);
RectangleF invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(dc, obj.GetBoundingRect(dc)));
obj.Draw(dc, invalidaterect);
dc.Graphics.Dispose();
dc.Dispose();
}
/// <summary>
/// 鼠标移动事件
/// </summary>
/// <param name="e"></param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (m_selection != null)
{
Graphics dc = Graphics.FromHwnd(Handle);
m_selection.SetMousePoint(dc, new PointF(e.X, e.Y));
dc.Dispose();
return;
}
if (m_commandType == eCommandType.pan && e.Button == MouseButtons.Left) //如果选择pan（移动画布），切按住鼠标左键
{
m_dragOffset.X = -(m_mousedownPoint.X - e.X);
m_dragOffset.Y = -(m_mousedownPoint.Y - e.Y);
m_lastCenterPoint = CenterPointUnit();
DoInvalidate(true);
}
UnitPoint mousepoint;
UnitPoint unitpoint = ToUnit(new PointF(e.X, e.Y));
if (m_commandType == eCommandType.draw || m_commandType == eCommandType.move || m_nodeMoveHelper.IsEmpty == false) //如果使绘制或者移动或节点移动或节点移动为空
{
Rectangle invalidaterect = Rectangle.Empty;
ISnapPoint newsnap = null;
mousepoint = GetMousePoint();
if (RunningSnapsEnabled)
{
newsnap = m_model.SnapPoint(m_canvaswrapper, mousepoint, m_runningSnapTypes, null);
}
if (newsnap == null)
{
newsnap = m_model.GridLayer.SnapPoint(m_canvaswrapper, mousepoint, null);
}
if ((m_snappoint != null) && ((newsnap == null) || (newsnap.SnapPoint != m_snappoint.SnapPoint) || m_snappoint.GetType() != newsnap.GetType())) //绘图时点击左键生成节点
{
Console.WriteLine("canvas 688");
invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, m_snappoint.BoundingRect));
invalidaterect.Inflate(2, 2);
RepaintStatic(invalidaterect); // remove old snappoint
m_snappoint = newsnap;
}
if (m_commandType == eCommandType.move)//使用移动工具时，重画图像
{
Invalidate(invalidaterect);
}
if (m_snappoint == null)
{
m_snappoint = newsnap;
}
}
m_owner.SetPositionInfo(unitpoint); //给出绘制信息
m_owner.SetSnapInfo(m_snappoint); //给出绘制信息
//UnitPoint mousepoint;
if (m_snappoint != null)
{
mousepoint = m_snappoint.SnapPoint;
}
else
{
mousepoint = GetMousePoint();
}
if (m_newObject != null) //如果不为空则重画*
{
//MessageBox.Show(m_newObject.ToString());
//Console.WriteLine(m_newObject.ToString());
Rectangle invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, m_newObject.GetBoundingRect(m_canvaswrapper)));
invalidaterect.Inflate(2, 2);
RepaintStatic(invalidaterect);
m_newObject.OnMouseMove(m_canvaswrapper, mousepoint);
RepaintObject(m_newObject);
}
if (m_snappoint != null) //如果不为空则重画
{
RepaintSnappoint(m_snappoint);
}
if (m_moveHelper.HandleMouseMoveForMove(mousepoint)) //重绘
{
Refresh(); //Invalidate();
}
RectangleF rNoderect = m_nodeMoveHelper.HandleMouseMoveForNode(mousepoint); //坐标获取
if (rNoderect != RectangleF.Empty)
{
Rectangle invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, rNoderect)); //坐标转换
RepaintStatic(invalidaterect); //重绘
CanvasWrapper dc = new CanvasWrapper(this, Graphics.FromHwnd(Handle), ClientRectangle);
dc.Graphics.Clip = new Region(ClientRectangle);
//m_nodeMoveHelper.DrawOriginalObjects(dc, rNoderect);
m_nodeMoveHelper.DrawObjects(dc, rNoderect);
if (m_snappoint != null)
{
RepaintSnappoint(m_snappoint); //重绘
}
dc.Graphics.Dispose();
dc.Dispose();
}
}
/// <summary>
/// 响应消息
/// </summary>
/// <param name="e"></param>
protected override void OnPaint(PaintEventArgs e)
{
CommonTools.Tracing.StartTrack(Program.TracePaint); //TracePaint=1
ClearPens(); //清空画笔
e.Graphics.SmoothingMode = m_smoothingMode;
CanvasWrapper dc = new CanvasWrapper(this, e.Graphics, ClientRectangle);
Rectangle cliprectangle = e.ClipRectangle;
if (m_staticImage == null)
{
cliprectangle = ClientRectangle;
m_staticImage = new Bitmap(ClientRectangle.Width, ClientRectangle.Height);
m_staticDirty = true;
}
RectangleF r = ScreenUtils.ToUnitNormalized(dc, cliprectangle);
if (float.IsNaN(r.Width) || float.IsInfinity(r.Width))
{
r = ScreenUtils.ToUnitNormalized(dc, cliprectangle);
}
if (m_staticDirty)
{
m_staticDirty = false;
CanvasWrapper dcStatic = new CanvasWrapper(this, Graphics.FromImage(m_staticImage), ClientRectangle);
dcStatic.Graphics.SmoothingMode = m_smoothingMode;
m_model.BackgroundLayer.Draw(dcStatic, r);
if (m_model.GridLayer.Enabled)
{
m_model.GridLayer.Draw(dcStatic, r);
}
PointF nullPoint = ToScreen(new UnitPoint(0, 0));
dcStatic.Graphics.DrawLine(Pens.Blue, nullPoint.X - 10, nullPoint.Y, nullPoint.X + 10, nullPoint.Y);
dcStatic.Graphics.DrawLine(Pens.Blue, nullPoint.X, nullPoint.Y - 10, nullPoint.X, nullPoint.Y + 10);
ICanvasLayer[] layers = m_model.Layers; //线条粗细颜色
for (int layerindex = layers.Length - 1; layerindex >= 0; layerindex--)
{
if (layers[layerindex] != m_model.ActiveLayer && layers[layerindex].Visible)
{
layers[layerindex].Draw(dcStatic, r);
}
}
if (m_model.ActiveLayer != null)
{
m_model.ActiveLayer.Draw(dcStatic, r);
}
dcStatic.Dispose();
}
e.Graphics.DrawImage(m_staticImage, cliprectangle, cliprectangle, GraphicsUnit.Pixel);
foreach (IDrawObject drawobject in m_model.SelectedObjects)
{
drawobject.Draw(dc, r);
}
if (m_newObject != null)
{
m_newObject.Draw(dc, r);
}
if (m_snappoint != null)
{
m_snappoint.Draw(dc);
}
if (m_selection != null)
{
m_selection.Reset();
m_selection.SetMousePoint(e.Graphics, this.PointToClient(Control.MousePosition));
}
if (m_moveHelper.IsEmpty == false)
{
m_moveHelper.DrawObjects(dc, r);
}
if (m_nodeMoveHelper.IsEmpty == false)
{
m_nodeMoveHelper.DrawObjects(dc, r);
}
dc.Dispose();
ClearPens();
CommonTools.Tracing.EndTrack(Program.TracePaint, "OnPaint complete");
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (m_selection != null)
{
Graphics dc = Graphics.FromHwnd(Handle);
m_selection.SetMousePoint(dc, new PointF(e.X, e.Y));
dc.Dispose();
return;
}
if (m_commandType == eCommandType.pan &&
(e.Button == MouseButtons.Left || e.Button == MouseButtons.Middle))
{
m_dragOffset.X = -(m_mousedownPoint.X - e.X);
m_dragOffset.Y = -(m_mousedownPoint.Y - e.Y);
m_lastCenterPoint = CenterPointUnit();
DoInvalidate(true);
}
UnitPoint mousepoint;
UnitPoint unitpoint = ToUnit(new PointF(e.X, e.Y));
if (m_commandType == eCommandType.draw || m_commandType == eCommandType.move || m_nodeMoveHelper.IsEmpty == false)
{
Rectangle invalidaterect = Rectangle.Empty;
ISnapPoint newsnap = null;
mousepoint = GetMousePoint();
if (RunningSnapsEnabled)
{
newsnap = m_model.SnapPoint(m_canvaswrapper, mousepoint, m_runningSnapTypes, null);
}
if (newsnap == null)
{
newsnap = m_model.GridLayer.SnapPoint(m_canvaswrapper, mousepoint, null);
}
if ((m_snappoint != null) && ((newsnap == null) || (newsnap.SnapPoint != m_snappoint.SnapPoint) || m_snappoint.GetType() != newsnap.GetType()))
{
invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, m_snappoint.BoundingRect));
invalidaterect.Inflate(2, 2);
RepaintStatic(invalidaterect); // remove old snappoint
m_snappoint = newsnap;
}
if (m_commandType == eCommandType.move)
{
Invalidate(invalidaterect);
}
if (m_snappoint == null)
{
m_snappoint = newsnap;
}
}
m_owner.SetPositionInfo(unitpoint);
m_owner.SetSnapInfo(m_snappoint);
//UnitPoint mousepoint;
if (m_snappoint != null)
{
mousepoint = m_snappoint.SnapPoint;
}
else
{
mousepoint = GetMousePoint();
}
if (m_newObject != null)
{
Rectangle invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, m_newObject.GetBoundingRect(m_canvaswrapper)));
invalidaterect.Inflate(2, 2);
RepaintStatic(invalidaterect);
m_newObject.OnMouseMove(m_canvaswrapper, mousepoint);
RepaintObject(m_newObject);
}
if (m_snappoint != null)
{
RepaintSnappoint(m_snappoint);
}
if (m_moveHelper.HandleMouseMoveForMove(mousepoint))
{
Refresh(); //Invalidate();
}
RectangleF rNoderect = m_nodeMoveHelper.HandleMouseMoveForNode(mousepoint);
if (rNoderect != RectangleF.Empty)
{
Rectangle invalidaterect = ScreenUtils.ConvertRect(ScreenUtils.ToScreenNormalized(m_canvaswrapper, rNoderect));
RepaintStatic(invalidaterect);
CanvasWrapper dc = new CanvasWrapper(this, Graphics.FromHwnd(Handle), ClientRectangle);
dc.Graphics.Clip = new Region(ClientRectangle);
//m_nodeMoveHelper.DrawOriginalObjects(dc, rNoderect);
m_nodeMoveHelper.DrawObjects(dc, rNoderect);
if (m_snappoint != null)
{
RepaintSnappoint(m_snappoint);
}
dc.Graphics.Dispose();
dc.Dispose();
}
}