public override void RunLayout(MDIContainer container)
{
if (container == null)
{
return;
}
if (!container.Items.Children.Any())
{
return;
}
var items = container.Items.Children;
var containerWidth = container.ActualWidth;
var containerHeight = container.ActualHeight;
var itemWidth = containerWidth / (double)items.Count;
var itemHeight = containerHeight;
for (var i = 0; i < items.Count; i++)
{
var item = (MDIChild)items[i];
Canvas.SetLeft(item, i * itemWidth);
Canvas.SetTop(item, 0);
item.Width = itemWidth;
item.Height = itemHeight;
}
}
public override void RunLayout(MDIContainer container)
{
if (container == null)
{
return;
}
if (!container.Items.Children.Any())
{
return;
}
var items = container.Items.Children;
MDIChild lastItem = null;
for (var i = 0; i < items.Count; i++)
{
var item = (MDIChild)items[i];
Canvas.SetLeft(item, i * 30);
Canvas.SetTop(item, i * 30);
if (Resize && item.FormBorderStyle != FormBorderStyle.Fixed)
{
item.Width = container.DefaultChildWidth;
item.Height = container.DefaultChildHeight;
}
lastItem = item;
}
lastItem?.Activate();
}
public void Minimize(MDIContainer mdiContainer)
{
SetState(FormWindowState.Minimized);
_previousSize = new Size(ActualWidth, ActualHeight);
_previousLocation = new Point(Canvas.GetLeft(this), Canvas.GetTop(this));
Deactivate();
VisualStateManager.GoToState(this, "Minimized", false);
Width = 230; // TODO Move to visual state
Height = 48;
}
private static void HandleStartPosition(Control control, MDIChild child, MDIContainer mdiContainer)
{
double startLeft;
double startTop;
var startPosition = FormStartPosition.WindowsDefaultLocation;
var apStart = control.GetValue(FormProperties.FormStartPositionProperty);
if (apStart != null)
{
startPosition = (FormStartPosition)apStart;
}
if (startPosition == FormStartPosition.CenterParent)
{
var screenWidth = mdiContainer.ActualWidth;
var screenHeight = mdiContainer.ActualHeight;
var windowWidth = child.Width;
var windowHeight = child.Height;
startLeft = screenWidth / 2 - windowWidth / 2;
startTop = screenHeight / 2 - windowHeight / 2;
}
else if (startPosition == FormStartPosition.CenterScreen)
{
var displaySize = Helpers.GetCurrentDisplaySize();
var screenWidth = displaySize.Width;
var screenHeight = displaySize.Height;
var windowWidth = child.Width;
var windowHeight = child.Height;
startLeft = screenWidth / 2 - windowWidth / 2;
startTop = screenHeight / 2 - windowHeight / 2;
}
else
{
var screenWidth = mdiContainer.ActualWidth;
var screenHeight = mdiContainer.ActualHeight;
var windowWidth = child.Width;
var windowHeight = child.Height;
var maxLeft = screenWidth / 2 - windowWidth / 2;
var maxTop = screenHeight / 2 - windowHeight / 2;
var rnd = new Random();
startLeft = rnd.Next(0, (int)maxLeft);
startTop = rnd.Next(0, (int)maxTop);
}
Canvas.SetLeft(child, startLeft);
Canvas.SetTop(child, startTop);
}
private static void ConfigureMdiControl(Control control, MDIChild child, MDIContainer mdiContainer)
{
HandleStartPosition(control, child, mdiContainer);
}