private void MainWindow_LeftMouseDown(object sender, MouseEventArgs e)
{
// log.write("mouse state set to down");
mouseState = CGMouseState.CGMouseStateDown;
if (buttonClicked != this.buttonDrawPolygon &&
buttonClicked != this.buttonDrawBezier &&
buttonClicked != this.buttonDrawBStyleCurve)
{
// log.write(String.Format("canUpdateGraphics:{0} --> true", canUpdateGraphics));
canUpdateGraphics = true;
canClearGraphics = false;
}
// set downpos
this.downPos.X = e.X;
this.downPos.Y = e.Y;
if (buttonClicked == this.buttonMoveGraphics ||
buttonClicked == this.buttonAdjustGraphics ||
buttonClicked == this.buttonRotation ||
buttonClicked == this.buttonZoomGraphics ||
buttonClicked == null)
{
userCanvas.SelectGraphicsByCursor(new Point(e.X, e.Y));
}
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
}
private void MainWindow_LeftMouseUp(object sender, MouseEventArgs e)
{
if (buttonClicked == this.buttonDrawPolygon ||
buttonClicked == this.buttonDrawBezier ||
buttonClicked == this.buttonDrawBStyleCurve)
{
mouseState = CGMouseState.CGMouseStateUp;
isUpdatingGraphicsWhenMouseUp = true;
upPos.X = e.X; upPos.Y = e.Y;
canUpdateGraphics = true;
}
else
{
if (buttonClicked == this.buttonTrim)
{
userCanvas.trimSelectedGraphics(userCanvas.trimArea);
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
}
// log.write("mouse set to up, canUpdateGraphics --> false");
mouseState = CGMouseState.CGMouseStateUp;
canUpdateGraphics = false;
}
if (canClearGraphics)
{
// clear current graphics in userCanvas
// userCanvas.ClearStateOfSelectedGraphics();
// flip userCanvas to ghs
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
}
canClearGraphics = false;
}
private void MainWindow_RightMouseDown(object sender, MouseEventArgs e)
{
// note: the order of each event when double clicked
// down -> up -> down -> dbclick -> up
if (buttonClicked == this.buttonDrawPolygon)
{
// log.write("mouse double click");
if (polygonEdgeSet.Count == 0)
{
return;
}
int dx = e.X - polygonEdgeSet[0].firstPoint.X;
int dy = e.Y - polygonEdgeSet[0].firstPoint.Y;
if (dx * dx + dy * dy > 3 * 3)
{
CGUserGraphicsLine pline = new CGUserGraphicsLine(new Point(e.X, e.Y), polygonEdgeSet[0].firstPoint);
userCanvas.AddGraphics(pline);
polygonEdgeSet.Add(pline);
}
mouseState = CGMouseState.CGMouseStateUp;
// log.write("canUpdateGraphics --> false");
canUpdateGraphics = false;
isUpdatingGraphicsWhenMouseUp = false;
userCanvas.ClearStateOfSelectedGraphics();
polygonEdgeSet.ForEach((l) => { userCanvas.RemoveGraphics(l); });
CGUserGraphicsPolygon polygon = new CGUserGraphicsPolygon(polygonEdgeSet);
userCanvas.AddGraphics(polygon);
userCanvas.SetGraphicsSelected(polygon);
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
polygonEdgeSet.Clear();
}
else if (buttonClicked == this.buttonDrawBezier)
{
if (polygonEdgeSet.Count <= 1)
{
return;
}
if (oldSelectedCurve != null)
{
userCanvas.RemoveGraphics(oldSelectedCurve);
oldSelectedCurve = null;
}
int dx = e.X - polygonEdgeSet[0].firstPoint.X;
int dy = e.Y - polygonEdgeSet[0].firstPoint.Y;
List <Point> downPointSet = new List <Point>();
foreach (CGUserGraphicsLine l in polygonEdgeSet)
{
downPointSet.Add(l.firstPoint);
}
if (dx * dx + dy * dy < 3 * 3)
{
downPointSet.Add(polygonEdgeSet[0].firstPoint);
}
else
{
downPointSet.Add(polygonEdgeSet[polygonEdgeSet.Count - 1].nextPoint);
}
mouseState = CGMouseState.CGMouseStateUp;
// log.write("canUpdateGraphics --> false");
canUpdateGraphics = false;
isUpdatingGraphicsWhenMouseUp = false;
userCanvas.ClearStateOfSelectedGraphics();
polygonEdgeSet.ForEach((l) => { userCanvas.RemoveGraphics(l); });
polygonEdgeSet.Clear();
CGUserGraphicsBezier curve = new CGUserGraphicsBezier(downPointSet);
userCanvas.AddGraphics(curve);
userCanvas.SetGraphicsSelected(curve);
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
downPointSet.Clear();
}
else if (buttonClicked == this.buttonDrawBStyleCurve)
{
if (polygonEdgeSet.Count <= 1)
{
return;
}
if (oldSelectedCurve != null)
{
userCanvas.RemoveGraphics(oldSelectedCurve);
oldSelectedCurve = null;
}
int dx = e.X - polygonEdgeSet[0].firstPoint.X;
int dy = e.Y - polygonEdgeSet[0].firstPoint.Y;
List <Point> downPointSet = new List <Point>();
foreach (CGUserGraphicsLine l in polygonEdgeSet)
{
downPointSet.Add(l.firstPoint);
}
if (dx * dx + dy * dy < 3 * 3)
{
downPointSet.Add(polygonEdgeSet[0].firstPoint);
}
else
{
downPointSet.Add(polygonEdgeSet[polygonEdgeSet.Count - 1].nextPoint);
}
mouseState = CGMouseState.CGMouseStateUp;
// log.write("canUpdateGraphics --> false");
canUpdateGraphics = false;
isUpdatingGraphicsWhenMouseUp = false;
userCanvas.ClearStateOfSelectedGraphics();
polygonEdgeSet.ForEach((l) => { userCanvas.RemoveGraphics(l); });
polygonEdgeSet.Clear();
CGUserGraphicsBStyleCurve curve = new CGUserGraphicsBStyleCurve(downPointSet);
userCanvas.AddGraphics(curve);
userCanvas.SetGraphicsSelected(curve);
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
downPointSet.Clear();
}
else if (buttonClicked == this.buttonRotation ||
buttonClicked == this.buttonZoomGraphics)
{
userCanvas.SetBasePoint(new Point(e.X, e.Y));
ghs.DrawImage(userCanvas.bmp, this.ClientRectangle);
}
}