private void Control_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left)
{
selectmode = true;
downpoint = e.Location;
int size = 8;//获得边框矩形大小
Point selectLocation = new Point(((Control)sender).Location.X - size, ((Control)sender).Location.Y - size);
this.PB_background.Controls.SetChildIndex((Control)sender, 0);
if (selectbox == null)
{
selectbox = new SelectControl(((Control)sender).Width + 2 * size, ((Control)sender).Height + 2 * size);
selectbox.Location = selectLocation;
this.PB_background.Controls.Add(selectbox);
}
else
{
if (selectbox.Location != selectLocation)
{
this.PB_background.Controls.Remove(selectbox);
selectbox.Dispose();
selectbox = new SelectControl(((Control)sender).Width + 2 * size, ((Control)sender).Height + 2 * size);
selectbox.Location = selectLocation;
this.PB_background.Controls.Add(selectbox);
this.PB_background.Controls.SetChildIndex(selectbox, 1);
}
}
this.PB_background.Refresh();
}
}
private void Sender_KeyDown(object sender, KeyEventArgs e)
{
if (e.KeyCode == Keys.Delete && selectmode == true)
{
PB_background.Controls.RemoveAt(0);
PB_background.Controls.Remove(selectbox);
selectbox.Dispose();
selectbox = null;
selectmode = false;
}
}
/// <summary>
/// 放大A4纸
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void 放大ToolStripMenuItem_Click(object sender, EventArgs e)
{
if (selectbox != null)
{
PB_background.Controls.Remove(selectbox);
selectbox.Dispose();
selectbox = null;
}
selectmode = false;
boxscale = boxscale * 1.2;
ResizeAllControl();
//todo
}
/// <summary>
/// 鼠标弹起事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Background_MouseUp(object sender, MouseEventArgs e)
{
if (selectmode == true)
{
if (selectbox != null)
{
PB_background.Controls.Remove(selectbox);
selectbox.Dispose();
selectbox = null;
}
selectmode = false;
}
}