private void pictureBox1_DragOver(object sender, DragEventArgs e)
{
int x = ((PictureBox)sender).PointToClient(new Point(e.X, e.Y)).X;
int y = ((PictureBox)sender).PointToClient(new Point(e.X, e.Y)).Y;
toolStripLabel1.Text = "X=" + x + ", Y=" + y;
if (e.Data.GetData(typeof(Canvas.ShapeSelection)) != null)
{
Canvas.ShapeSelection shapeSelection = (Canvas.ShapeSelection)e.Data.GetData(typeof(Canvas.ShapeSelection));
if (shapeSelection.grabArea == Canvas.GrabArea.AREA || shapeSelection.grabArea == Canvas.GrabArea.HANDLE_MIDCENTER)
{
// Moving a shape
Cursor.Current = Cursors.SizeAll;
pictureBox1.Image = canvas.DragShape(x, y, tempShape, mouseOffset);
}
else
{
// Resizing a shape
Cursor.Current = shapeSelection.cursor;
mouseOffset = new Point(x - tempShape.x1, y - tempShape.y1);
tempShape = canvas.ResizeShape(x, y, tempShape, shapeSelection.grabArea);
pictureBox1.Image = canvas.bitmap;
}
}
else
{
// Dragging from toolbox
pictureBox1.Image = canvas.DragShape(x, y, tempShape, mouseOffset);
}
}
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
if (currentTool == Tool.SELECT)
{
Canvas.ShapeSelection shapeSelection = canvas.ShapeAtPoint(e.Location);
// User clicks empty area
if (shapeSelection.index == -1)
{
canvas.DeselectShapes();
canvas.Refresh();
pictureBox1.Image = canvas.bitmap;
}
foreach (ToolStripItem item in popUpMenu.Items)
{
item.Enabled = (shapeSelection.index > -1 ? true : false);
}
if (e.Button == MouseButtons.Left)
{
if (shapeSelection.index > -1)
{
// Pick up the shape, and initiate a drag / drop
canvas.SelectedShapeIndex = shapeSelection.index;
tempShape = canvas.SelectedShape.Clone();
canvas.Shapes.RemoveAt(shapeSelection.index);
canvas.Refresh();
tempShape.buffer = canvas.GetBitmapRegion(tempShape.rect);
pictureBox1.Image = canvas.bitmap;
mouseOffset = new Point(e.X - tempShape.x1, e.Y - tempShape.y1);
pictureBox1.DoDragDrop(shapeSelection, DragDropEffects.Move);
}
}
}
if (currentTool == Tool.LINE)
{
tempLine.x1 = e.X;
tempLine.y1 = e.Y;
}
if (currentTool == Tool.TEXT)
{
tempTextBlock.x1 = e.X;
tempTextBlock.y1 = e.Y;
}
}
