private void panel2_MouseUp(object sender, MouseEventArgs e)
{
switch (drawingMode)
{
case DrawMode.Square:
shapeList.Add(new Shape(new Rectangle(dimensions.Anchor, dimensions.Size), new Pen(Pen, 2), drawingMode));
break;
case DrawMode.Circle:
shapeList.Add(new Shape(new Rectangle(dimensions.Anchor, dimensions.Size), new Pen(Pen, 2), drawingMode));
break;
case DrawMode.FillSquare:
shapeList.Add(new Shape(new Rectangle(dimensions.Anchor, dimensions.Size), new SolidBrush(Fill), drawingMode));
break;
case DrawMode.FillCircle:
shapeList.Add(new Shape(new Rectangle(dimensions.Anchor, dimensions.Size), new SolidBrush(Fill), drawingMode));
break;
case DrawMode.Line:
shapeList.Add(new Shape(dimensions.Anchor, dimensions.end, new Pen(Pen, 2), drawingMode));
break;
}
PaintCanvas.Invalidate();
anchor = Point.Empty;
dimensions.Update(anchor, Point.Empty);
dimensions.UpdateLine(anchor, Point.Empty);
isDrawingMode = false; //upon mouse release, user cannot draw unless he clicks on canvas again
}
private void undoToolStripMenuItem_Click(object sender, EventArgs e)
{
try
{
int n = shapeList.Count - 1;
History.Add(shapeList[n]);
shapeList.RemoveAt(n);
PaintCanvas.Invalidate();
}
catch (Exception) { }
}
private void redoToolStripMenuItem_Click(object sender, EventArgs e)
{
try
{
int o = History.Count - 1;
shapeList.Add(History[o]);
History.RemoveAt(o);
o--;
PaintCanvas.Invalidate();
}
catch (Exception) { }
}
private void newToolStripMenuItem_Click(object sender, EventArgs e) //for newcanvas, we remove each shape from the list
{
List <Shape> valuesToDelete = new List <Shape>();
foreach (Shape s in shapeList)
{
valuesToDelete.Add(s);
}
foreach (Shape s in valuesToDelete)
{
shapeList.Remove(s);
}
PaintCanvas.Invalidate();
}
private void panel2_MouseMove(object sender, MouseEventArgs e)
{
// update our delta location
delta.X = e.X;
delta.Y = e.Y;
newPointerX.X = e.X;
newPointerX.Y = e.Y;
toolStripStatusLabel1.Text = Math.Abs(delta.X).ToString() + "," + "" + Math.Abs(delta.Y).ToString() + " px";
if (isDrawingMode)
{
Point currentPt = new Point(delta.X - anchor.X, delta.Y - anchor.Y);
toolStripStatusLabel2.Text = Math.Abs(currentPt.X).ToString() + "," + "" + Math.Abs(currentPt.Y).ToString() + " px";
if (drawingMode == DrawMode.Brush)
{
int r = (int)Convert.ToInt32(BrushWidthComboBox.SelectedItem.ToString());
Size a = new Size(r, r);
shapeList.Add(new Shape(delta, new SolidBrush(BrushColorBox.BackColor), a, drawingMode));
}
if (drawingMode == DrawMode.Pen)
{
shapeList.Add(new Shape(oldPointerX, newPointerX, new Pen(PenColorBox.BackColor, 1), drawingMode));
oldPointerX = newPointerX;
}
if (drawingMode == DrawMode.Erase)
{
Size a = new Size(25, 25);
shapeList.Add(new Shape(delta, new SolidBrush(PaintCanvas.BackColor), a, drawingMode));
}
if (drawingMode == DrawMode.Line)
{
dimensions.UpdateLine(anchor, delta);
}
dimensions.Update(anchor, delta);
}
// redraw the form
PaintCanvas.Invalidate();
}
private void openToolStripMenuItem_Click(object sender, EventArgs e) //code for opening BMP file
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.DefaultExt = "bmp";
openFileDialog.Filter = "Bitmap files|*.bmp";
if (openFileDialog.ShowDialog() == DialogResult.OK)
{
imagePath = openFileDialog.FileName;
Image imgBitmap = new Bitmap(imagePath);
drawingMode = DrawMode.Image;
shapeList.Add(new Shape(imgBitmap, drawingMode));
this.PaintCanvas.Size = imgBitmap.Size;
}
drawingMode = DrawMode.Square;
PaintCanvas.Invalidate();
}