private void openGLControl_OpenGLDraw(object sender, SharpGL.RenderEventArgs args)
{
OpenGL gl = openGLControl.OpenGL;
// Clear the color and depth buffer.
gl.Clear(OpenGL.GL_COLOR_BUFFER_BIT | OpenGL.GL_DEPTH_BUFFER_BIT);
foreach (DrawHelper drawHelper in listDrawPolygonHelper)
{
drawHelper.draw();
}
foreach (DrawHelper drawHelper in listDrawEllipseHelper)
{
drawHelper.draw();
}
foreach (DrawHelper drawHelper in listDrawColor)
{
drawHelper.draw();
}
List <Point> controlPoints = selectedPoints;
if (controlPoints.Count > 0)
{
DrawHelper controlPointsDraw = new DrawHelper(gl, OpenGL.GL_POINTS, controlPoints, colorDialog1.Color, 1.0f, 5.0f);
controlPointsDraw.draw();
}
if (started) // neu mouse dang down va di chuyen, ve duong live tuy vao draw cai gi
{
if (drawingRadio.Checked)
{
int drawingMode = getDrawingOption();
DrawChosenOption liveDraw = new DrawChosenOption(drawingMode, pStart, pEnd, gl);
uint openglMode = (drawingMode == DrawChosenOption.DRAW_LINE) ? OpenGL.GL_LINES : OpenGL.GL_LINE_LOOP;
DrawHelper liveDrawHelper = new DrawHelper(gl, openglMode, liveDraw.getDrawingPoints(), colorDialog1.Color, (float)numericUpDown1.Value);
liveDrawHelper.draw();
}
else if (drawRandomRadio.Checked)
{
List <Point> points = drawRandomPolygon.getControlPoints();
points.Add(new Point(pEnd.X, pEnd.Y));
DrawHelper liveDrawHelper = new DrawHelper(gl, OpenGL.GL_LINE_LOOP, points, colorDialog1.Color, (float)numericUpDown1.Value);
liveDrawHelper.draw();
}
}
if (ended) // da mouse up, tinh thoi gian ve hinh
{
watch.Stop();
var elapsedMs = watch.ElapsedMilliseconds;
textBox1.Text = elapsedMs.ToString() + " ms";
ended = false;
}
}
private void openGLControl_MouseUp(object sender, MouseEventArgs e)
{
OpenGL gl = openGLControl.OpenGL;
// update toa do end
pEnd = new Point(e.Location.X, gl.RenderContextProvider.Height - e.Location.Y);
if (drawingRadio.Checked)
{
// Them action ve hinh vao snapshot
int drawingMode = getDrawingOption();
// calculate draw / control points
DrawChosenOption newDrawChosen = new DrawChosenOption(drawingMode, pStart, pEnd, gl);
uint openglMode = (drawingMode == DrawChosenOption.DRAW_LINE) ? OpenGL.GL_LINES : OpenGL.GL_LINE_LOOP;
List <Point> points = newDrawChosen.getDrawingPoints();
if ((drawingMode == DrawChosenOption.DRAW_CIRCLE || drawingMode == DrawChosenOption.DRAW_ELIPSE) && points.Count > 2)
{
listDrawEllipseHelper.Add(new DrawHelper(gl, openglMode, points, colorDialog1.Color, (float)numericUpDown1.Value));
listEllipses.Add(new Ellipse(newDrawChosen.getControlPoints(), drawingMode));
}
else
{
listDrawPolygonHelper.Add(new DrawHelper(gl, openglMode, points, colorDialog1.Color, (float)numericUpDown1.Value));
listPolygons.Add(new Polygon(newDrawChosen.getControlPoints(), drawingMode));
}
// update status (da xong ve~ di chuyen tren man hinh)
started = false;
ended = true;
// Bat dau stop watch dem thoi gian thuc thi ve hinh
watch = System.Diagnostics.Stopwatch.StartNew();
// Reset 2 diem
resetPoints();
}
else if (selectRadio.Checked) // select and (dragging / scale / rotate / nothing)
{
if (pStart == pEnd) //only select
{
if (selectedType == SELECTED_POLYGON)
{
selectedPoints = new List <Point>(listPolygons[selectedIndex].getControlPoints());
}
else if (selectedType == SELECTED_ELLIPSE)
{
selectedPoints = new List <Point>(listEllipses[selectedIndex].getControlPoints());
}
}
else // select and (dragging / scale / rotate)
{
List <Point> controlPoints = new List <Point>(), drawingPoints = new List <Point>();
// select and drag
if (selectedType == SELECTED_POLYGON) //select a polygon
{
AffineTransform af = new AffineTransform(listPolygons[selectedIndex].getControlPoints(), listPolygons[selectedIndex].type);
bool didTransform = false;
//bedin transform
if (selectedControlPointIndex == -1) // neu select polygon nhung khong select control point => translate
{
if (af.translate(pStart, pEnd))
{
controlPoints = af.getControlPoints();
didTransform = true;
}
}
else // else rotate va scale => pStart la 1 diem control point
{
//do both rotate and scale (get updated control points after rotate)
// if one of them failed => do nothing =)))
if (af.rotate(pStart, pEnd) && af.scale(af.getControlPoints()[selectedControlPointIndex], pEnd))
{
controlPoints = af.getControlPoints();
didTransform = true;
}
}
// end transform
if (didTransform)
{
//geting drawing points
if (listPolygons[selectedIndex].type == DrawChosenOption.DRAW_RANDOM)
{
DrawRandomPolygon newDRP = new DrawRandomPolygon(gl, controlPoints);
drawingPoints = new List <Point>(newDRP.getDrawingPoints());
}
else
{
DrawChosenOption newDCO = new DrawChosenOption(listPolygons[selectedIndex].type, controlPoints, gl);
drawingPoints = new List <Point>(newDCO.getDrawingPoints());
}
// update lists
listPolygons[selectedIndex].setPoints(controlPoints);
selectedPoints = controlPoints;
listDrawPolygonHelper[selectedIndex].setPoints(drawingPoints);
}
else
{
selectedPoints = listPolygons[selectedIndex].getControlPoints();
}
}
if (selectedType == SELECTED_ELLIPSE) //select a ellipse
{
AffineTransform af = new AffineTransform(listEllipses[selectedIndex].getControlPoints(), listEllipses[selectedIndex].type);
bool didTransform = false;
//bedin transform
if (selectedControlPointIndex == -1) // neu select ellipse nhung khong select control point => translate
{
if (af.translate(pStart, pEnd))
{
controlPoints = af.getControlPoints();
didTransform = true;
}
}
else //else rotate and scale, pStart la 1 diem control point
{
if (af.rotate(pStart, pEnd) && af.scale(af.getControlPoints()[selectedControlPointIndex], pEnd))
{
controlPoints = af.getControlPoints();
didTransform = true;
}
}
//end transform
if (didTransform)
{
DrawChosenOption newDCO = new DrawChosenOption(listEllipses[selectedIndex].type, controlPoints, gl);
drawingPoints = new List <Point>(newDCO.getDrawingPoints());
listEllipses[selectedIndex].setPoints(controlPoints);
listDrawEllipseHelper[selectedIndex].setPoints(drawingPoints);
selectedPoints = controlPoints;
}
else
{
selectedPoints = listEllipses[selectedIndex].getControlPoints();
}
}
//SELECTED NONE thi k lam gi
}
}
}
