/// <summary>
/// Updates the layout and appearance of the managed controls
/// </summary>
protected override void RefreshControlPositions()
{
ResetCurrentPosToTopLeft();
int rowStart = 0;
int lastVisible = 0;
int currentRowHeight = 0;
int currentLine = 0;
IList controlsInRow = new ArrayList();
for (int i = 0; i < this._controls.Count; i++)
{
IChilliControl ctl = GetControl(i);
if (currentLine < _newLinePositions.Count && (int)_newLinePositions[currentLine] == i)
{
MoveCurrentPosToStartOfNextRow(currentRowHeight);
currentLine++;
}
if (ctl.Visible)
{
if (ControlDoesNotFitOnCurrentRow(ctl))
{
if (IsGluedToAnotherControl(i))
{
if (PreviousControlVisible(i) && BothControlsFitOnALine(i))
{
//Get the previous control as this is the one that this control is glued to
//E.g. a label and this needs to get moved to the new line.
i--;
ctl = GetControl(i);
}
}
if (_alignment == Alignments.Centre)
{
ShiftControlsRightForCentering(rowStart, i - 1);
}
MoveCurrentPosToStartOfNextRow(currentRowHeight);
currentRowHeight = InitialiseNewRow(i, out rowStart, controlsInRow);
}
controlsInRow.Add(ctl);
CalculateControlPosition(ctl);
_currentPos.X += ctl.Width + GapSize;
if (ctl.Height > currentRowHeight)
{
currentRowHeight = ctl.Height;
}
lastVisible = i;
}
if (_alignment == Alignments.Centre)
{
if ((i == this._controls.Count - 1) && (lastVisible >= rowStart))
{
ShiftControlsRightForCentering(rowStart, lastVisible);
}
}
}
if (_alignment == Alignments.Right && rowStart == 0)
{
SetUpTabIndexForAlignmentRight(rowStart, controlsInRow);
}
}
/// <summary>
/// Adds a control to the layout
/// </summary>
/// <param name="ctl">The control to add</param>
/// <returns>Returns the control once it has been added</returns>
public override IChilliControl AddControl(IChilliControl ctl)
{
_controls.Add(ctl);
RefreshControlPositions();
ctl.VisibleChanged += ControlVisibleChangedHandler;
ctl.Resize += ControlResizedHandler;
this.ManagedControl.Controls.Add(ctl);
return ctl;
}
/// <summary>
/// Adds a control to the layout
/// </summary>
/// <param name="ctl">The control to add</param>
/// <returns>Returns the control once it has been added</returns>
public override IChilliControl AddControl(IChilliControl ctl)
{
_controls.Add(ctl);
RefreshControlPositions();
ctl.VisibleChanged += ControlVisibleChangedHandler;
ctl.Resize += ControlResizedHandler;
this.ManagedControl.Controls.Add(ctl);
return(ctl);
}
private static void SetUpTabIndexForAlignmentRight(int rowStart, IList controlsInRow)
{
for (int ctlCount = 0; ctlCount < controlsInRow.Count; ctlCount++)
{
IChilliControl controlInRow = (IChilliControl)controlsInRow[controlsInRow.Count - 1 - ctlCount];
{
controlInRow.TabIndex = rowStart + ctlCount;
}
}
}
/// <summary>
/// Calculates the control's position in the user interface
/// </summary>
/// <param name="ctl">The control in question</param>
private void CalculateControlPosition(IChilliControl ctl)
{
if (_alignment == Alignments.Right)
{
ctl.Left = ManagedControl.Width - _currentPos.X - ctl.Width;
}
else
{
ctl.Left = _currentPos.X;
}
ctl.Top = _currentPos.Y;
}
/// <summary>
/// Constructor to initialise a new manager
/// </summary>
/// <param name="managedControl">The control to manage e.g. a Panel</param>
public FlowLayoutManager(IChilliControl managedControl) : base(managedControl)
{
_controls = new List<IChilliControl>();
_newLinePositions = new ArrayList(3);
_gluePositions = new ArrayList(5);
}
/// <summary>
/// Informs if the specified control fails to fit on the current row
/// of controls
/// </summary>
/// <param name="ctl">The control in question</param>
/// <returns>Returns true if the item doesn't fit, false if it
/// does</returns>
private bool ControlDoesNotFitOnCurrentRow(IChilliControl ctl)
{
return (_currentPos.X + ctl.Width >= ManagedControl.Width - BorderSize);
}
/// <summary>
/// Calculates the control's position in the user interface
/// </summary>
/// <param name="ctl">The control in question</param>
private void CalculateControlPosition(IChilliControl ctl)
{
if (_alignment == Alignments.Right)
{
ctl.Left = ManagedControl.Width - _currentPos.X - ctl.Width;
}
else
{
ctl.Left = _currentPos.X;
}
ctl.Top = _currentPos.Y;
}
/// <summary>
/// Constructor to initialise a new manager
/// </summary>
/// <param name="managedControl">The control to manage e.g. a Panel</param>
public FlowLayoutManager(IChilliControl managedControl) : base(managedControl)
{
_controls = new List <IChilliControl>();
_newLinePositions = new ArrayList(3);
_gluePositions = new ArrayList(5);
}
/// <summary>
/// Informs if the specified control fails to fit on the current row
/// of controls
/// </summary>
/// <param name="ctl">The control in question</param>
/// <returns>Returns true if the item doesn't fit, false if it
/// does</returns>
private bool ControlDoesNotFitOnCurrentRow(IChilliControl ctl)
{
return(_currentPos.X + ctl.Width >= ManagedControl.Width - BorderSize);
}
