//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 :; }