public CONTROL_POSITION GetControlPositon(REGION_CONTROL_STYLES ControlStyle)
{
switch (ControlStyle)
{
case REGION_CONTROL_STYLES.TL: return(CONTROL_POSITION.TL);
case REGION_CONTROL_STYLES.TR: return(CONTROL_POSITION.TR);
case REGION_CONTROL_STYLES.BR: return(CONTROL_POSITION.BR);
case REGION_CONTROL_STYLES.BL: return(CONTROL_POSITION.BL);
case REGION_CONTROL_STYLES.TC: return(CONTROL_POSITION.TC);
case REGION_CONTROL_STYLES.MR: return(CONTROL_POSITION.MR);
case REGION_CONTROL_STYLES.BC: return(CONTROL_POSITION.BC);
case REGION_CONTROL_STYLES.ML: return(CONTROL_POSITION.ML);
case REGION_CONTROL_STYLES.MC: return(CONTROL_POSITION.MC);
case REGION_CONTROL_STYLES.TT: return(CONTROL_POSITION.TT);
}
return(CONTROL_POSITION.MC);
}
public REGION_CONTROL_STYLES HitTest(float fX, float fY, float fSpaces, Keys nFlags)
{
PointF[] cp = GetCP();
REGION_CONTROL_STYLES SelectRCS = REGION_CONTROL_STYLES.NONE;
for (int n = 0; n < (int)CONTROL_POSITION.MAX; n++)
{
float ax = fSpaces - Math.Abs(cp[n].X - fX); // fZoomX
float ay = fSpaces - Math.Abs(cp[n].Y - fY); // fZoomY
if (ax > 0 && ay > 0)
{
SelectRCS = (REGION_CONTROL_STYLES)(1 << n);
if ((m_RCS & SelectRCS) != 0 || nFlags == Keys.Alt)
{
if (SelectRCS != REGION_CONTROL_STYLES.NONE)
{
break;
}
}
else
{
SelectRCS = REGION_CONTROL_STYLES.NONE;
}
}
}
if (SelectRCS != REGION_CONTROL_STYLES.NONE)
{
bHitOn = true;
}
return(SelectRCS);
}
private void InitRegion()
{
m_fSpaces = 5.0f;
m_cBorderColor = Color.Blue;
m_RCS = REGION_CONTROL_STYLES.ALL;
m_SelectRCS = REGION_CONTROL_STYLES.NONE;
m_dBorderStyle = DashStyle.Solid;
m_cFillImage = null;
}
protected override void OnMouseUp(MouseEventArgs e)
{
if ((e.Button & MouseButtons.Left) != 0)
{
PointF point = new PointF(e.X - m_pOrigin.X, e.Y - m_pOrigin.Y);
switch (m_eControlMode)
{
case E_VIEW_CONTROL_MODE.VCM_POINT:
{
if (ModifierKeys == Keys.Alt)
{
REGION_CONTROL_STYLES HitRCS = REGION_CONTROL_STYLES.NONE;
XRegion xRegion = (XRegion)m_xOverlay.First();
for (int n = 0; n < m_xOverlay.Count; n++)
{
if (xRegion != null)
{
HitRCS = xRegion.HitTest(point.X / m_fZ, point.Y / m_fZ, xRegion.Spaces / m_fZ, ModifierKeys);
if (HitRCS != REGION_CONTROL_STYLES.NONE)
{
if (m_xActiveRegion != null && xRegion != null && m_xActiveRegion != xRegion)
{
m_xActiveRegion.SetAlign(xRegion, HitRCS);
break;
}
}
else
{
xRegion.SetAlign(null, HitRCS);
}
xRegion = (XRegion)m_xOverlay.Next();
}
}
}
else if (m_xSelectRegion.ControlSelect == REGION_CONTROL_STYLES.BR)
{
SelectControl();
m_xSelectRegion.ControlSelect = REGION_CONTROL_STYLES.NONE;
Refresh();
}
if (m_bMouseMove == true)
{
m_bMouseMove = false;
Refresh();
}
InvokeOnClick(this, null);
} break;
case E_VIEW_CONTROL_MODE.VCM_PAN:
{
m_pOrigin.X = e.X - m_pStartPan.X;
m_pOrigin.Y = e.Y - m_pStartPan.Y;
Refresh();
} break;
}
}
}
public XRegion()
{
bHitOn = false;
m_ObjectAlignRCS = REGION_CONTROL_STYLES.NONE;
m_fSpaces = 5.0f;
m_cBorderColor = Color.Blue;
m_RCS = REGION_CONTROL_STYLES.ALL;
m_SelectRCS = REGION_CONTROL_STYLES.NONE;
m_dBorderStyle = DashStyle.Solid;
m_cFillImage = null;
}
private void Set(XRegion xRegion)
{
base.Set(xRegion);
m_cBorderColor = xRegion.BorderColor;
m_cFillColor = xRegion.FillColor;
m_cFillImage = new Bitmap(xRegion.FillImage);
m_dBorderStyle = xRegion.BorderStyle;
m_RCS = xRegion.ControlStyle;
m_SelectRCS = xRegion.ControlSelect;
m_sCaption = xRegion.Caption;
}
public void SetAlign(XRegion TargetRegion, REGION_CONTROL_STYLES AlignTargetStyles)
{
if ((m_RCS & AlignTargetStyles) != 0)
{
if (TargetRegion.m_RegionAlign.TargetRegion != this)
{
m_RegionAlign.SetAlign(TargetRegion, GetControlPositon(AlignTargetStyles), GetControlPositon(m_ObjectAlignRCS));
Align();
}
}
else
{
m_RegionAlign.SetAlign(null, CONTROL_POSITION.TT, CONTROL_POSITION.TT);
}
}
public REGION_CONTROL_STYLES SelectControl(float fX, float fY, float fSpaces, Keys nFlags)
{
REGION_CONTROL_STYLES RetRCS = HitTest(fX, fY, fSpaces, nFlags);
if (RetRCS == REGION_CONTROL_STYLES.NONE)
{
RetRCS = HitTestBolder(fX, fY, fSpaces, nFlags);
}
m_SelectRCS = RetRCS;
PointF[] cp = GetCP();
float x = p[0];
float y = p[1];
float w = p[2];
float h = p[3];
double t = p[4];
if (nFlags == Keys.Alt)
{
if (m_SelectRCS != REGION_CONTROL_STYLES.NONE)
{
fix.X = x - fX;
fix.Y = y - fY;
if ((m_SelectRCS & m_RCS) != 0)
{
m_ObjectAlignRCS = m_SelectRCS;
m_RegionAlign.TargetRegion = null;
m_SelectRCS = REGION_CONTROL_STYLES.MC;
}
else
{
m_ObjectAlignRCS = REGION_CONTROL_STYLES.NONE;
}
}
}
else
{
switch (m_SelectRCS)
{
case REGION_CONTROL_STYLES.TL:
fix = cp[(int)CONTROL_POSITION.BR]; break;
case REGION_CONTROL_STYLES.TR:
fix = cp[(int)CONTROL_POSITION.BL]; break;
case REGION_CONTROL_STYLES.BR:
fix = cp[(int)CONTROL_POSITION.TL]; break;
case REGION_CONTROL_STYLES.BL:
fix = cp[(int)CONTROL_POSITION.TR]; break;
case REGION_CONTROL_STYLES.TC:
fix = cp[(int)CONTROL_POSITION.BC]; break;
case REGION_CONTROL_STYLES.MR:
fix = cp[(int)CONTROL_POSITION.ML]; break;
case REGION_CONTROL_STYLES.BC:
fix = cp[(int)CONTROL_POSITION.TC]; break;
case REGION_CONTROL_STYLES.ML:
fix = cp[(int)CONTROL_POSITION.MR]; break;
case REGION_CONTROL_STYLES.MC:
case REGION_CONTROL_STYLES.TT:
fix.X = 0;
fix.Y = 0;
break;
}
if ((m_RCS & REGION_CONTROL_STYLES.ALL) != 0 && m_SelectRCS == REGION_CONTROL_STYLES.NONE)
{
double dx = fX - x;
double dy = fY - y;
double dw = dx * Math.Cos(-t) + dy * Math.Sin(-t);
double dh = -dx *Math.Sin(-t) + dy * Math.Cos(-t);
if ((w - Math.Abs(dw)) > 0 && (h - Math.Abs(dh)) > 0)
{
if (m_eRShape == SHAPE.ELLIPSE)
{
if (dx != 0 && dy != 0)
{
double dt = Math.Atan(dy / dx);
double l = Math.Sqrt(w * w + h * h);
double tx = l * Math.Cos(dt);
double ty = l * Math.Sin(dt);
if ((dx * dx) <= (tx * tx) && (dy * dy) <= (ty * ty))
{
fix.X = x - fX;
fix.Y = y - fY;
m_SelectRCS = REGION_CONTROL_STYLES.ALL;
}
}
else
{
fix.X = x - fX;
fix.Y = y - fY;
m_SelectRCS = REGION_CONTROL_STYLES.ALL;
}
}
else
{
fix.X = x - fX;
fix.Y = y - fY;
m_SelectRCS = REGION_CONTROL_STYLES.ALL;
}
}
}
}
return(RetRCS);
}
public REGION_CONTROL_STYLES HitTestBolder(float fX, float fY, float fSpaces, Keys nFlags) //Graphics gp, float fOx, float fOy, float fZoomX, float fZoomY)
{
REGION_CONTROL_STYLES SelectRCS = REGION_CONTROL_STYLES.NONE;
PointF[] dp = GetCP();
float x = p[0];
float y = p[1];
float w = p[2];
float h = p[3];
double t = p[4];
switch (RegionShape)
{
case SHAPE.CLOSE:
{
} break;
case SHAPE.ELLIPSE:
{
double nt = 0;
double cost = Math.Cos(t);
double sint = Math.Sin(t);
for (long n = 0; n < 6284; n++)
{
nt += 0.001;
double tx = w * Math.Cos(nt);
double ty = h * Math.Sin(nt);
float drawX = (float)(x + tx * cost + ty * sint);
float drawY = (float)(y - tx * sint + ty * cost);
if (Math.Abs(fX - drawX) < fSpaces && Math.Abs(fY - drawY) < fSpaces)
{
SelectRCS = REGION_CONTROL_STYLES.SELECT;
break;
}
}
} break;
case SHAPE.RECTANGLE:
default:
{
PointF[] pDraw = new PointF[5];
for (int n = 0; n < 4; n++)
{
pDraw[n].X = dp[n].X;
pDraw[n].Y = dp[n].Y;
}
pDraw[4] = pDraw[0];
for (int n = 0; n < 4; n++)
{
float Lx = pDraw[n].X - pDraw[n + 1].X;
float Ly = pDraw[n].Y - pDraw[n + 1].Y;
float Fx = pDraw[n].X - fX;
float Fy = pDraw[n].Y - fY;
if (Lx == 0 && Math.Abs(Fx) < fSpaces)
{
if ((pDraw[n].Y < fY && fY < pDraw[n + 1].Y) || (pDraw[n + 1].Y < fY && fY < pDraw[n].Y))
{
SelectRCS = REGION_CONTROL_STYLES.SELECT;
break;
}
}
else if (Ly == 0 && Math.Abs(Fy) < fSpaces)
{
if ((pDraw[n].X < fX && fX < pDraw[n + 1].X) || (pDraw[n + 1].X < fX && fX < pDraw[n].X))
{
SelectRCS = REGION_CONTROL_STYLES.SELECT;
break;
}
}
else
{
if (Math.Abs((Ly / Lx) * Fx - Fy) < fSpaces)
{
SelectRCS = REGION_CONTROL_STYLES.SELECT;
break;
}
}
}
} break;
}
if (SelectRCS != REGION_CONTROL_STYLES.NONE)
{
bHitOn = true;
}
return(SelectRCS);
}
public void Control(float _x, float _y, float fZoomX, float fZoomY)
{
if (fZoomX == 0 || fZoomY == 0)
{
return;
}
float fX = _x / fZoomX;
float fY = _y / fZoomY;
float dw = fX - fix.X;
float dh = fY - fix.Y;
REGION_CONTROL_STYLES ControlRCS = m_SelectRCS & m_RCS;
double t = p[4];
switch (ControlRCS)
{
case REGION_CONTROL_STYLES.MC:
{
p[0] = fix.X + fX;
p[1] = fix.Y + fY;
} break;
case REGION_CONTROL_STYLES.TT:
{
double dx = fX - p[0];
double dy = p[1] - fY;
p[4] = (float)Math.Atan(dy / dx);
if (dx < 0)
{
p[4] = (float)(Math.PI + p[4]);
}
if (t < 0)
{
p[4] = (float)(2.0 * Math.PI + p[4]);
}
} break;
case REGION_CONTROL_STYLES.TC:
{
p[3] = (float)Math.Abs(-dw * Math.Sin(-t) + dh * Math.Cos(-t)) / 2.0f;
p[0] = fix.X - p[3] * (float)Math.Sin(t);
p[1] = fix.Y - p[3] * (float)Math.Cos(t);
} break;
case REGION_CONTROL_STYLES.BC:
{
p[3] = (float)Math.Abs(-dw * Math.Sin(-t) + dh * Math.Cos(-t)) / 2.0f;
p[0] = fix.X + p[3] * (float)Math.Sin(t);
p[1] = fix.Y + p[3] * (float)Math.Cos(t);
} break;
case REGION_CONTROL_STYLES.ML:
{
p[2] = (float)Math.Abs(dw * Math.Cos(-t) + dh * Math.Sin(-t)) / 2.0f;
p[0] = fix.X - p[2] * (float)Math.Cos(t);
p[1] = fix.Y + p[2] * (float)Math.Sin(t);
} break;
case REGION_CONTROL_STYLES.MR:
{
p[2] = (float)Math.Abs(dw * Math.Cos(-t) + dh * Math.Sin(-t)) / 2.0f;
p[0] = fix.X + p[2] * (float)Math.Cos(t);
p[1] = fix.Y - p[2] * (float)Math.Sin(t);
} break;
case REGION_CONTROL_STYLES.TL:
case REGION_CONTROL_STYLES.TR:
case REGION_CONTROL_STYLES.BL:
case REGION_CONTROL_STYLES.BR:
{
p[0] = (fix.X + fX) / 2.0f;
p[1] = (fix.Y + fY) / 2.0f;
p[2] = (float)Math.Abs(dw * Math.Cos(-t) + dh * Math.Sin(-t)) / 2.0f;
p[3] = (float)Math.Abs(-dw * Math.Sin(-t) + dh * Math.Cos(-t)) / 2.0f;
if (m_eRShape == SHAPE.ELLIPSE)
{
dw = (float)(dw * Math.Cos(Math.PI / 4));
dh = (float)(dh * Math.Sin(Math.PI / 4));
p[2] = (float)Math.Abs(dw * Math.Cos(-t) + dh * Math.Sin(-t));
p[3] = (float)Math.Abs(-dw * Math.Sin(-t) + dh * Math.Cos(-t));
}
} break;
}
}