public void RestoreState()
{
var state = AritmeticsService.RestoreLastState();
ClearA();
ClearB();
ClearResult();
if (state == null)
{
ArrangeControls();
return;
}
if (state.Item1 != null)
{
CreateAritmeticControl(state.Item1, pnlA);
}
if (state.Item2 != null)
{
CreateAritmeticControl(state.Item2, pnlB);
}
if (state.Item3 != null)
{
CreateAritmeticControl(state.Item3, pnlResult);
}
ArrangeControls();
}
private void RecordState()
{
BaseMathEntity item1 = null;
BaseMathEntity item2 = null;
BaseMathEntity item3 = null;
foreach (Control c in pnlA.Controls)
{
item1 = c.Tag as BaseMathEntity;
if (item1 != null)
{
break;
}
}
foreach (Control c in pnlB.Controls)
{
item2 = c.Tag as BaseMathEntity;
if (item2 != null)
{
break;
}
}
foreach (Control c in pnlResult.Controls)
{
item3 = c.Tag as BaseMathEntity;
if (item3 != null)
{
break;
}
}
AritmeticsService.AddState(item1, item2, item3);
}
private void copyToolStripMenuItem_Click(object sender, EventArgs e)
{
Control ctrl = cntxMenu.SourceControl;
var ac = ctrl.Parent.Tag as AritmeticControl;
if (ac != null)
{
AritmeticsService.CopyEntity(ac.Entity);
}
}
private void Calculate()
{
Number result = null;
try
{
result = AritmeticsService.Calculate(cmbOperation.SelectedItem as MatOperation, lblNum1.Tag as Number, lblNum2.Tag as Number);
lblResult.Text = result.ToString();
lblResult.Tag = result;
}
catch (Exception ex)
{
lblResult.Text = string.Format("Error: {0}", ex.Message);
}
}
private void determinatToolStripMenuItem_Click(object sender, EventArgs e)
{
Control ctrl = cntxMenu.SourceControl;
var ac = ctrl.Parent.Tag as AritmeticControl;
if (ac != null)
{
BaseMathEntity conj = null;
try
{
conj = AritmeticsService.Determinant(ac.Entity);
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Normalize", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
Control container = null;
if (ctrl == pnlA || ctrl.Parent == pnlA)
{
container = pnlA;
ClearA();
}
else if (ctrl == pnlB || ctrl.Parent == pnlB)
{
container = pnlB;
ClearB();
}
else if (ctrl == pnlResult || ctrl.Parent == pnlResult)
{
container = pnlResult;
ClearResult();
}
var acC = CreateAritmeticControl(conj, container);
acC.Grid.Focus();
ArrangeControls();
RecordState();
}
}
private void CalculateVector()
{
AritmeticControl ac = null;
AritmeticControl bc = null;
if (pnlA.Controls.Count != 0)
{
ac = pnlA.Tag as AritmeticControl;
}
if (pnlB.Controls.Count != 0)
{
bc = pnlB.Tag as AritmeticControl;
}
if (ac == null)
{
MessageBox.Show(this, "Variable A not defined!", "Calculate", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
if (bc == null)
{
MessageBox.Show(this, "Variable B not defined!", "Calculate", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return;
}
BaseMathEntity result = null;
try
{
result = AritmeticsService.CalculateVector((VectorOperation)ddiOperation.SelectedItem.Tag, ac.Entity, bc.Entity);
}
catch (Exception ex)
{
MessageBox.Show(this, ex.Message, "Calculate", MessageBoxButtons.OK, MessageBoxIcon.Warning);
}
if (result == null)
{
return;
}
if (cb_rbresult_A.Checked)
{
ClearA();
CreateAritmeticControl(result, pnlA);
}
else if (cb_rbresult_B.Checked)
{
ClearB();
CreateAritmeticControl(result, pnlB);
}
else
{
ClearResult();
CreateAritmeticControl(result, pnlResult);
}
ArrangeControls();
RecordState();
}
