/// <summary>
/// Initialize a new instance of the ViewLayoutDocker class.
/// </summary>
public ViewLayoutDocker()
{
// Create child to dock style lookup
_childDocking = new ViewDockStyleLookup();
// Default state
FillRectangle = Rectangle.Empty;
Orientation = VisualOrientation.Top;
MaxBorderEdges = PaletteDrawBorders.All;
PreferredSizeAll = false;
RemoveChildBorders = false;
IgnoreRightToLeftLayout = false;
Padding = Padding.Empty;
}
/// <summary>
/// Initialize a new instance of the ViewLayoutDocker class.
/// </summary>
public ViewLayoutDocker()
{
// Create child to dock style lookup
_childDocking = new ViewDockStyleLookup();
// Default state
_fillRectangle = Rectangle.Empty;
_orientation = VisualOrientation.Top;
_maxBorderEdges = PaletteDrawBorders.All;
_preferredSizeAll = false;
_removeChildBorders = false;
_ignoreRightToLeftLayout = false;
_padding = Padding.Empty;
}
/// <summary>
/// Initialize a new instance of the ViewDrawDocker class.
/// </summary>
/// <param name="paletteBack">Palette source for the background.</param>
/// <param name="paletteBorder">Palette source for the border.</param>
/// <param name="paletteMetric">Palette source for metric values.</param>
/// <param name="metricOverlay">Metric to use for border overlay.</param>
/// <param name="metricPadding">Metric used to get padding values.</param>
/// <param name="orientation">Visual orientation of the content.</param>
public ViewDrawDocker(IPaletteBack paletteBack,
IPaletteBorder paletteBorder,
IPaletteMetric paletteMetric,
PaletteMetricBool metricOverlay,
PaletteMetricPadding metricPadding,
VisualOrientation orientation)
: base(paletteBack, paletteBorder, paletteMetric, metricPadding, orientation)
{
// Cache the starting values
_metricOverlay = metricOverlay;
// Create other state
_childDocking = new ViewDockStyleLookup();
FillRectangle = Rectangle.Empty;
IgnoreBorderSpace = false;
RemoveChildBorders = false;
PreferredSizeAll = false;
}
/// <summary>
/// Discover the preferred size of the element.
/// </summary>
/// <param name="context">Layout context.</param>
public override Size GetPreferredSize(ViewLayoutContext context)
{
Debug.Assert(context != null);
// Create new lookup that only contains entries for current child items
ViewDockStyleLookup newChildDocking = new ViewDockStyleLookup();
// Remember the original display rectangle provided
Rectangle originalRect = context.DisplayRectangle;
Rectangle displayRect = context.DisplayRectangle;
// Accumulate the size that must be provided by docking edges and then filler
Size preferredSize = Size.Empty;
// Track the minimize size needed to satisfy the docking edges only
Size minimumSize = Size.Empty;
PaletteDrawBorders leftEdges = PaletteDrawBorders.All;
PaletteDrawBorders rightEdges = PaletteDrawBorders.All;
PaletteDrawBorders topEdges = PaletteDrawBorders.All;
PaletteDrawBorders bottomEdges = PaletteDrawBorders.All;
PaletteDrawBorders fillEdges = PaletteDrawBorders.All;
// Check for edge docking children
foreach (ViewBase child in Reverse())
{
// Add into the valid child lookup
ViewDockStyle dockStyle = GetDock(child);
newChildDocking.Add(child, dockStyle);
// Only position visible children that are not 'fill'
if ((child.Visible || PreferredSizeAll) && (GetDock(child) != ViewDockStyle.Fill))
{
// Prevent children from showing adjacent borders that are not needed
UpdateChildBorders(child, context, ref leftEdges, ref rightEdges,
ref topEdges, ref bottomEdges, ref fillEdges);
// Update with latest calculated display rectangle
context.DisplayRectangle = displayRect;
// Get the preferred size of the child
Size childSize = child.GetPreferredSize(context);
// Apply size requests from edge docking children
switch (OrientateDock(dockStyle))
{
case ViewDockStyle.Top:
preferredSize.Height += childSize.Height;
displayRect.Y += childSize.Height;
displayRect.Height -= childSize.Height;
if (minimumSize.Width < childSize.Width)
{
minimumSize.Width = childSize.Width;
}
break;
case ViewDockStyle.Bottom:
preferredSize.Height += childSize.Height;
displayRect.Height -= childSize.Height;
if (minimumSize.Width < childSize.Width)
{
minimumSize.Width = childSize.Width;
}
break;
case ViewDockStyle.Left:
preferredSize.Width += childSize.Width;
displayRect.X += childSize.Width;
displayRect.Width -= childSize.Width;
if (minimumSize.Height < childSize.Height)
{
minimumSize.Height = childSize.Height;
}
break;
case ViewDockStyle.Right:
preferredSize.Width += childSize.Width;
displayRect.Width -= childSize.Width;
if (minimumSize.Height < childSize.Height)
{
minimumSize.Height = childSize.Height;
}
break;
}
}
}
// Check for the fill child last
foreach (ViewBase child in Reverse())
{
// Only interested in a visible 'fill' child
if ((child.Visible || PreferredSizeAll) && (GetDock(child) == ViewDockStyle.Fill))
{
// Prevent children from showing adjacent borders that are not needed
UpdateChildBorders(child, context, ref leftEdges, ref rightEdges,
ref topEdges, ref bottomEdges, ref fillEdges);
// Update with latest calculated display rectangle
context.DisplayRectangle = displayRect;
// Get the preferred size of the child
Size childSize = child.GetPreferredSize(context);
preferredSize.Width += childSize.Width;
preferredSize.Height += childSize.Height;
// There can only be one filler!
break;
}
}
// Use updated lookup
_childDocking = newChildDocking;
// Put back the original display rect
context.DisplayRectangle = originalRect;
// Enforce the minimum values from the other docking edge sizes
preferredSize.Width = Math.Max(preferredSize.Width, minimumSize.Width);
preferredSize.Height = Math.Max(preferredSize.Height, minimumSize.Height);
// Apply the padding request
switch (Orientation)
{
case VisualOrientation.Top:
case VisualOrientation.Bottom:
preferredSize.Width += Padding.Horizontal;
preferredSize.Height += Padding.Vertical;
break;
case VisualOrientation.Left:
case VisualOrientation.Right:
preferredSize.Width += Padding.Vertical;
preferredSize.Height += Padding.Horizontal;
break;
}
// Allow the preferred size to be modified before being used
return(UpdatePreferredSize(preferredSize));
}
/// <summary>
/// Initialize a new instance of the ViewDrawDocker class.
/// </summary>
/// <param name="paletteBack">Palette source for the background.</param>
/// <param name="paletteBorder">Palette source for the border.</param>
/// <param name="paletteMetric">Palette source for metric values.</param>
/// <param name="metricOverlay">Metric to use for border overlay.</param>
/// <param name="metricPadding">Matric used to get padding values.</param>
/// <param name="orientation">Visual orientation of the content.</param>
public ViewDrawDocker(IPaletteBack paletteBack,
IPaletteBorder paletteBorder,
IPaletteMetric paletteMetric,
PaletteMetricBool metricOverlay,
PaletteMetricPadding metricPadding,
VisualOrientation orientation)
: base(paletteBack, paletteBorder, paletteMetric, metricPadding, orientation)
{
// Cache the starting values
_metricOverlay = metricOverlay;
// Create other state
_childDocking = new ViewDockStyleLookup();
_fillRectangle = Rectangle.Empty;
_ignoreBorderSpace = false;
_removeChildBorders = false;
_preferredSizeAll = false;
}
/// <summary>
/// Discover the preferred size of the element.
/// </summary>
/// <param name="context">Layout context.</param>
public override Size GetPreferredSize(ViewLayoutContext context)
{
Debug.Assert(context != null);
// Create new lookup that only contains entries for current child items
ViewDockStyleLookup newChildDocking = new ViewDockStyleLookup();
// Remember the original display rectangle provided
Rectangle originalRect = context.DisplayRectangle;
Rectangle displayRect = context.DisplayRectangle;
// Accumulate the size that must be provided by docking edges and then filler
Size preferredSize = Size.Empty;
// Track the minimize size needed to satisfy the docking edges only
Size minimumSize = Size.Empty;
PaletteDrawBorders leftEdges = PaletteDrawBorders.All;
PaletteDrawBorders rightEdges = PaletteDrawBorders.All;
PaletteDrawBorders topEdges = PaletteDrawBorders.All;
PaletteDrawBorders bottomEdges = PaletteDrawBorders.All;
PaletteDrawBorders fillEdges = PaletteDrawBorders.All;
// Check for edge docking children
foreach (ViewBase child in this.Reverse())
{
// Add into the valid child lookup
ViewDockStyle dockStyle = GetDock(child);
newChildDocking.Add(child, dockStyle);
// Only position visible children that are not 'fill'
if ((child.Visible || PreferredSizeAll) && (GetDock(child) != ViewDockStyle.Fill))
{
// Prevent children from showing adjacent borders that are not needed
UpdateChildBorders(child, context, ref leftEdges, ref rightEdges,
ref topEdges, ref bottomEdges, ref fillEdges);
// Update with latest calculated display rectangle
context.DisplayRectangle = displayRect;
// Get the preferred size of the child
Size childSize = child.GetPreferredSize(context);
// Apply size requests from edge docking children
switch (OrientateDock(dockStyle))
{
case ViewDockStyle.Top:
preferredSize.Height += childSize.Height;
displayRect.Y += childSize.Height;
displayRect.Height -= childSize.Height;
if (minimumSize.Width < childSize.Width)
minimumSize.Width = childSize.Width;
break;
case ViewDockStyle.Bottom:
preferredSize.Height += childSize.Height;
displayRect.Height -= childSize.Height;
if (minimumSize.Width < childSize.Width)
minimumSize.Width = childSize.Width;
break;
case ViewDockStyle.Left:
preferredSize.Width += childSize.Width;
displayRect.X += childSize.Width;
displayRect.Width -= childSize.Width;
if (minimumSize.Height < childSize.Height)
minimumSize.Height = childSize.Height;
break;
case ViewDockStyle.Right:
preferredSize.Width += childSize.Width;
displayRect.Width -= childSize.Width;
if (minimumSize.Height < childSize.Height)
minimumSize.Height = childSize.Height;
break;
}
}
}
// Check for the fill child last
foreach (ViewBase child in this.Reverse())
{
// Only interested in a visible 'fill' child
if ((child.Visible || PreferredSizeAll) && (GetDock(child) == ViewDockStyle.Fill))
{
// Prevent children from showing adjacent borders that are not needed
UpdateChildBorders(child, context, ref leftEdges, ref rightEdges,
ref topEdges, ref bottomEdges, ref fillEdges);
// Update with latest calculated display rectangle
context.DisplayRectangle = displayRect;
// Get the preferred size of the child
Size childSize = child.GetPreferredSize(context);
preferredSize.Width += childSize.Width;
preferredSize.Height += childSize.Height;
// There can only be one filler!
break;
}
}
// Use updated lookup
_childDocking = newChildDocking;
// Put back the original display rect
context.DisplayRectangle = originalRect;
// Enforce the minimum values from the other docking edge sizes
preferredSize.Width = Math.Max(preferredSize.Width, minimumSize.Width);
preferredSize.Height = Math.Max(preferredSize.Height, minimumSize.Height);
// Apply the padding request
switch (Orientation)
{
case VisualOrientation.Top:
case VisualOrientation.Bottom:
preferredSize.Width += Padding.Horizontal;
preferredSize.Height += Padding.Vertical;
break;
case VisualOrientation.Left:
case VisualOrientation.Right:
preferredSize.Width += Padding.Vertical;
preferredSize.Height += Padding.Horizontal;
break;
}
// Allow the preferred size to be modified before being used
return UpdatePreferredSize(preferredSize);
}
