//MOUSE HANDLE
private void pictureBox_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e)
{
drawMouse = true;
x = e.X;
y = e.Y;
if (currentItem == item.Pen)
{
Console.WriteLine("x" + x + "y" + y);
Console.WriteLine("x1" + x1 + "y1" + y1);
Pen p = choosePen(e);
// khởi tạo list tất cả các điểm để vẽ pen
pointList = new List <Point>();
pointList.Add(new Point(x, y)); // add điểm đầu tiên
g.DrawLine(p, x, y, x + 1, y);
pictureBox.Image = drawing;
}
if (currentItem == item.Eraser)
{
pointList = new List <Point>();
SolidBrush brush = new SolidBrush(Color.White);
rectangleList = new List <Rectangle>();
rectangleList.Add(new Rectangle(new Point(x, y), new Size(currentWidth, currentWidth)));
g.FillRectangles(brush, rectangleList.ToArray());
pictureBox.Image = drawing;
}
if (currentItem == item.Select)
{
//kích chuột trong vùng đã chọn->kéo thả
if (x >= selectedArea.X && x <= selectedArea.X + selectedArea.Width &&
y >= selectedArea.Y && y <= selectedArea.Y + selectedArea.Height)
{
Console.Write("drag" + selectedArea.X + " " + selectedArea.Y);
dragNdrop = true;
}
else //kích chuột ngoài
{
//reset selectedArea-> khi click chuột ngoài rồi click vào vùng chọn không kéo thả được nữa
selectedArea.Width = 0;
selectedArea.Height = 0;
//xoá vùng chọn và không cho cut copy
drawing = new Bitmap(drawingList.ElementAt(drawingList.currentIndex));
//pictureBox.Image = drawingList.Last();
g = Graphics.FromImage(drawing);
pictureBox.Image = drawing;
cutItem.Enabled = false;
copyItem.Enabled = false;
}
}
}
private void pictureBox_MouseMove(Object sender, MouseEventArgs e)
{
if (dragNdrop)
{
this.pictureBox.Cursor = Cursors.SizeAll;
}
else
{
this.pictureBox.Cursor = Cursors.Cross;
}
if (drawMouse == false)
{
goto jump;// k phải đang dí chuột thì nhảy tới jump
}
x1 = e.X;
y1 = e.Y;
//g.Clear(Color.White);
drawing = new Bitmap(drawingList.ElementAt(drawingList.currentIndex));
//pictureBox.Image = drawingList.Last();
g = Graphics.FromImage(drawing);
//chọn pen
Pen pen = choosePen(e);
if (currentFillItem != fillType.NoFill)
//vẽ phía trong
{
Brush brush = chooseBrush(e);
brushShape(brush, x, y, x1, y1);
}
//Vẽ đường ngoài
switch (currentItem)
{
case item.Select:
{
if (dragNdrop)
{
Console.WriteLine("Selecting");
//this.pictureBox.Cursor = Cursors.SizeAll;
//tạo nét đứt xung quanh
//dashDraw(new Rectangle(selectedArea.X+ (x1 - x), selectedArea.Y + (y1 - y),selectedArea.Width-1,selectedArea.Height));
//xoá hình select trên hình hiện tại
Bitmap nullImage = new Bitmap(selectImage);
Graphics nullGraphics = Graphics.FromImage(nullImage);
nullGraphics.Clear(Color.White);
g.DrawImageUnscaled(nullImage, selectedArea.X, selectedArea.Y);
//vẽ hình select lên vị trí mới
g.DrawImageUnscaled(selectImage, selectedArea.X + (x1 - x), selectedArea.Y + (y1 - y));
//pictureBox.Image = drawing;
}
else
{
dashDraw(Rectangle1(x, y, x1, y1));
}
break;
}
case item.Pen:
{
//Pen pen = pen_properties(currentColor, currentWidth);
//g.DrawLine(p, x, y, x1, y1);
//x = x1; y = y1;
pointList.Add(new Point(x1, y1));
try
{
g.DrawLines(pen, pointList.ToArray());
//g.DrawCurve(pen, pointList.ToArray());
////g.DrawBeziers(pen, pointList.ToArray());
}
catch (Exception ex)
{
}
break;
}
case item.Eraser:
{
SolidBrush brush = new SolidBrush(Color.White);
rectangleList.Add(new Rectangle(new Point(x1, y1), new Size(currentWidth, currentWidth)));
g.FillRectangles(brush, rectangleList.ToArray());
break;
}
case item.Line:
{
g.DrawLine(pen, new Point(x, y), new Point(x1, y1));
//pictureBox1.CreateGraphics().DrawImageUnscaled(drawing, 0, 0);
break;
}
case item.Oval:
{
g.DrawEllipse(pen, x, y, x1 - x, y1 - y);
break;
}
case item.Rectangle:
{
g.DrawRectangle(pen, Rectangle1(x, y, x1, y1));
break;
}
case item.TriCan:
{
Point[] pList = new Point[3];
pList[0] = new Point((x + x1) / 2, y);
pList[1] = new Point(x, y1);
pList[2] = new Point(x1, y1);
g.DrawPolygon(pen, pList);
break;
}
case item.TriVuong:
{
Point[] pList = new Point[3];
pList[0] = new Point(x, y);
pList[1] = new Point(x, y1);
pList[2] = new Point(x1, y1);
g.DrawPolygon(pen, pList);
break;
}
case item.Diamond:
{
Point[] pList = new Point[4];
pList[0] = new Point((x + x1) / 2, y);
pList[1] = new Point(x, (y + y1) / 2);
pList[2] = new Point((x + x1) / 2, y1);
pList[3] = new Point(x1, (y + y1) / 2);
g.DrawPolygon(pen, pList);
break;
}
}
pictureBox.Image = drawing; // hiển thị
jump :;
}