public void LayoutCeGui()
{
// used to compare UDims
var absWidth = GetChildContentArea().Get().Width;
// this is where we store the top offset
// we continually increase this number as we go through the windows
var topOffset = UDim.Zero;
var layoutWidth = UDim.Zero;
foreach (var window in d_children.Cast <Window>())
{
var offset = GetOffsetForWindow(window);
var boundingSize = GetBoundingSizeForWindow(window);
// full child window width, including margins
var childWidth = boundingSize.d_x;
if (CoordConverter.AsAbsolute(layoutWidth, absWidth) < CoordConverter.AsAbsolute(childWidth, absWidth))
{
layoutWidth = childWidth;
}
window.SetPosition(offset + new UVector2(UDim.Zero, topOffset));
topOffset += boundingSize.d_y;
}
SetSize(new USize(layoutWidth, topOffset));
//SetHeight(topOffset);
}
public override float GetValueFromThumb()
{
var w = (Slider)Window;
// get area the thumb is supposed to use as it's area.
var wlf = GetLookNFeel();
var area = wlf.GetNamedArea("ThumbTrackArea").GetArea().GetPixelRect(w);
// get accesss to the thumb
var theThumb = w.GetThumb();
// slider is vertical
if (_vertical)
{
// pixel extent of total available area the thumb moves in
var slideExtent = area.Height - theThumb.GetPixelSize().Height;
// calculate value represented by current thumb position
var thumbValue = (CoordConverter.AsAbsolute(theThumb.GetYPosition(), w.GetPixelSize().Height) -
area.Top) / (slideExtent / w.GetMaxValue());
// return final thumb value according to slider settings
return(_reversed ? thumbValue : w.GetMaxValue() - thumbValue);
}
// slider is horizontal
else
{
// pixel extent of total available area the thumb moves in
var slideExtent = area.Width - theThumb.GetPixelSize().Width;
// calculate value represented by current thumb position
var thumbValue = (CoordConverter.AsAbsolute(theThumb.GetXPosition(), w.GetPixelSize().Width) -
area.Left) / (slideExtent / w.GetMaxValue());
// return final thumb value according to slider settings
return(_reversed ? w.GetMaxValue() - thumbValue : thumbValue);
}
}
private void LayoutCeGui()
{
// used to compare UDims
var absHeight = GetChildContentArea().Get().Height;
// this is where we store the left offset
// we continually increase this number as we go through the windows
var leftOffset = UDim.Zero;
var layoutHeight = UDim.Zero;
foreach (Window window in d_children)
{
//Window* window = static_cast<Window*>(*it);
var offset = GetOffsetForWindow(window);
var boundingSize = GetBoundingSizeForWindow(window);
// full child window width, including margins
var childHeight = boundingSize.d_y;
if (CoordConverter.AsAbsolute(layoutHeight, absHeight) <
CoordConverter.AsAbsolute(childHeight, absHeight))
{
layoutHeight = childHeight;
}
window.SetPosition(offset + new UVector2(leftOffset, UDim.Zero));
leftOffset += boundingSize.d_x;
}
SetSize(new USize(leftOffset, layoutHeight));
}
/// <summary>
/// set the movement range of the thumb for the horizontal axis.
///
/// The values specified here are relative to the parent window for the thumb, and are specified in whichever
/// metrics mode is active for the widget.
/// </summary>
/// <param name="min">
/// the minimum setting for the thumb on the horizontal axis.
/// </param>
/// <param name="max">
/// the maximum setting for the thumb on the horizontal axis.
/// </param>
public void SetHorzRange(float min, float max)
{
var parentSize = GetParentPixelSize();
// ensure min <= max, swap if not.
if (min > max)
{
var tmp = min;
max = min;
min = tmp;
}
_horzMax = max;
_horzMin = min;
// validate current position.
var cp = CoordConverter.AsAbsolute(GetXPosition(), parentSize.Width);
if (cp < min)
{
SetXPosition(UDim.Absolute(min));
}
else if (cp > max)
{
SetXPosition(UDim.Absolute(max));
}
}
/// <summary>
/// Return whether the required minimum movement threshold before initiating dragging
/// has been exceeded.
/// </summary>
/// <param name="localMouse">
/// Mouse position as a pixel offset from the top-left corner of this window.
/// </param>
/// <returns>
/// - true if the threshold has been exceeded and dragging should be initiated.
/// - false if the threshold has not been exceeded.
/// </returns>
protected bool IsDraggingThresholdExceeded(Lunatics.Mathematics.Vector2 localMouse)
{
// calculate amount mouse has moved.
var deltaX = Math.Abs(localMouse.X - CoordConverter.AsAbsolute(_dragPoint.d_x, d_pixelSize.Width));
var deltaY = Math.Abs(localMouse.Y - CoordConverter.AsAbsolute(_dragPoint.d_y, d_pixelSize.Height));
// see if mouse has moved far enough to start dragging operation
return(deltaX > _dragThreshold || deltaY > _dragThreshold);
}
public override void Layout()
{
var colSizes = new List <UDim>(Enumerable.Repeat(UDim.Zero, _gridWidth));
var rowSizes = new List <UDim>(Enumerable.Repeat(UDim.Zero, _gridHeight));
// used to compare UDims
var absWidth = GetChildContentArea().Get().Width;
var absHeight = GetChildContentArea().Get().Height;
// first, we need to determine rowSizes and colSizes, this is needed before
// any layouting work takes place
for (var y = 0; y < _gridHeight; ++y)
{
for (var x = 0; x < _gridWidth; ++x)
{
// x and y is the position of window in the grid
var childIdx = MapFromGridToIdx(x, y, _gridWidth, _gridHeight);
var window = GetChildAtIdx(childIdx);
var size = GetBoundingSizeForWindow(window);
if (CoordConverter.AsAbsolute(colSizes[x], absWidth) <
CoordConverter.AsAbsolute(size.d_x, absWidth))
{
colSizes[x] = size.d_x;
}
if (CoordConverter.AsAbsolute(rowSizes[y], absHeight) <
CoordConverter.AsAbsolute(size.d_y, absHeight))
{
rowSizes[y] = size.d_y;
}
}
}
// OK, now in rowSizes[y] is the height of y-th row
// in colSizes[x] is the width of x-th column
// second layouting phase starts now
for (var y = 0; y < _gridHeight; ++y)
{
for (var x = 0; x < _gridWidth; ++x)
{
// x and y is the position of window in the grid
var childIdx = MapFromGridToIdx(x, y, _gridWidth, _gridHeight);
var window = GetChildAtIdx(childIdx);
var offset = GetOffsetForWindow(window);
var gridCellOffset = GetGridCellOffset(colSizes, rowSizes, x, y);
window.SetPosition(gridCellOffset + offset);
}
}
// now we just need to determine the total width and height and set it
SetSize(GetGridSize(colSizes, rowSizes));
}
/// <summary>
/// Internal implementation of make tab visible.
/// </summary>
/// <param name="wnd">
/// Pointer to a Window which is the root of the tab content to make visible
/// </param>
protected virtual void MakeTabVisibleImpl(Window wnd)
{
TabButton tb = null;
foreach (var item in d_tabButtonVector)
{
// get corresponding tab button and content window
tb = item;
var child = tb.GetTargetWindow();
if (child == wnd)
{
break;
}
tb = null;
}
if (tb == null)
{
return;
}
var ww = GetPixelSize().Width;
var x = CoordConverter.AsAbsolute(tb.GetPosition().d_x, ww);
var w = tb.GetPixelSize().Width;
float lx = 0f, rx = ww;
if (IsChild(ButtonScrollLeft))
{
var scrollLeftBtn = GetChild(ButtonScrollLeft);
lx = CoordConverter.AsAbsolute(scrollLeftBtn.GetArea().d_max.d_x, ww);
scrollLeftBtn.SetWantsMultiClickEvents(false);
}
if (IsChild(ButtonScrollRight))
{
var scrollRightBtn = GetChild(ButtonScrollRight);
rx = CoordConverter.AsAbsolute(scrollRightBtn.GetPosition().d_x, ww);
scrollRightBtn.SetWantsMultiClickEvents(false);
}
if (x < lx)
{
d_firstTabOffset += lx - x;
}
else
{
if (x + w <= rx)
{
return; // nothing to do
}
d_firstTabOffset += rx - (x + w);
}
PerformChildWindowLayout();
}
public override void ResizeListToContent(bool fitWidth, bool fitHeight)
{
var lb = (Listbox)Window;
var totalArea = lb.GetUnclippedOuterRect().Get();
var contentArea = GetItemRenderingArea(!fitWidth && lb.GetHorzScrollbar().IsVisible(),
!fitHeight && lb.GetVertScrollbar().IsVisible());
var withScrollContentArea = GetItemRenderingArea(true, true);
var frameSize = totalArea.Size - contentArea.Size;
var withScrollFrameSize = totalArea.Size - withScrollContentArea.Size;
var contentSize = new Sizef(lb.GetWidestItemWidth(),
lb.GetTotalItemsHeight());
var parentSize = lb.GetParentPixelSize();
var maxSize =
new Sizef(parentSize.Width - CoordConverter.AsAbsolute(lb.GetXPosition(), parentSize.Width),
parentSize.Height - CoordConverter.AsAbsolute(lb.GetYPosition(), parentSize.Height));
var requiredSize = frameSize + contentSize + new Sizef(1, 1);
if (fitHeight)
{
if (requiredSize.Height > maxSize.Height)
{
requiredSize.Height = maxSize.Height;
requiredSize.Width = Math.Min(maxSize.Width,
requiredSize.Width - frameSize.Width +
withScrollFrameSize.Width);
}
}
if (fitWidth)
{
if (requiredSize.Width > maxSize.Width)
{
requiredSize.Width = maxSize.Width;
requiredSize.Height = Math.Min(maxSize.Height,
requiredSize.Height - frameSize.Height +
withScrollFrameSize.Height);
}
}
if (fitHeight)
{
lb.SetHeight(new UDim(0, requiredSize.Height));
}
if (fitWidth)
{
lb.SetWidth(new UDim(0, requiredSize.Width));
}
}
/// <summary>
/// Resize the ItemListBase to exactly fit the content that is attached to it.
/// Return a Rect object describing, in un-clipped pixels, the window relative area
/// that is to be used for rendering items.
/// </summary>
protected virtual void SizeToContentImpl()
{
var renderArea = GetItemRenderArea();
var wndArea = CoordConverter.AsAbsolute(GetArea(), GetParentPixelSize());
// get size of content
var sz = GetContentSize();
// calculate the full size with the frame accounted for and resize the window to this
sz.Width += wndArea.Width - renderArea.Width;
sz.Height += wndArea.Height - renderArea.Height;
SetSize(new USize(UDim.Absolute(sz.Width), UDim.Absolute(sz.Height)));
}
public override Sizef GetTextSize()
{
var w = (Tooltip)Window;
var sz = w.GetTextSizeImpl();
// get WidgetLookFeel for the assigned look.
var wlf = GetLookNFeel();
var textArea = wlf.GetNamedArea("TextArea").GetArea().GetPixelRect(w);
var wndArea = CoordConverter.AsAbsolute(w.GetArea(), w.GetParentPixelSize());
sz.Width = CoordConverter.AlignToPixels(sz.Width + wndArea.Width - textArea.Width);
sz.Height = CoordConverter.AlignToPixels(sz.Height + wndArea.Height - textArea.Height);
return(sz);
}
/// <summary>
/// Return the current extents of the attached content.
/// </summary>
/// <returns>
/// Rect object that describes the pixel extents of the attached
/// child windows. This is effectively the smallest bounding box
/// that could contain all the attached windows.
/// </returns>
public Rectf GetChildExtentsArea()
{
var extents = Rectf.Zero;
var childCount = GetChildCount();
if (childCount == 0)
{
return(extents);
}
for (var i = 0; i < childCount; ++i)
{
var wnd = GetChildAtIdx(i);
var area = new Rectf(CoordConverter.AsAbsolute(wnd.GetPosition(), d_pixelSize), wnd.GetPixelSize());
if (wnd.GetHorizontalAlignment() == HorizontalAlignment.Centre)
{
area.Position = area.Position - new Lunatics.Mathematics.Vector2(area.Width * 0.5f - d_pixelSize.Width * 0.5f, 0.0f);
}
if (wnd.GetVerticalAlignment() == VerticalAlignment.Centre)
{
area.Position = area.Position - new Lunatics.Mathematics.Vector2(0.0f, area.Height * 0.5f - d_pixelSize.Height * 0.5f);
}
if (area.d_min.X < extents.d_min.X)
{
extents.d_min.X = area.d_min.X;
}
if (area.d_min.Y < extents.d_min.Y)
{
extents.d_min.Y = area.d_min.Y;
}
if (area.d_max.X > extents.d_max.X)
{
extents.d_max.X = area.d_max.X;
}
if (area.d_max.Y > extents.d_max.Y)
{
extents.d_max.Y = area.d_max.Y;
}
}
return(extents);
}
/// <summary>
/// move the window's bottom edge by 'delta'.
/// The rest of the window does not move, thus this changes the size of the Window.
/// </summary>
/// <param name="delta">
/// float value that specifies the amount to move the window edge, and in which direction.
/// Positive values make window larger.
/// </param>
/// <param name="outArea"></param>
/// <returns></returns>
protected bool MoveBottomEdge(float delta, ref URect outArea)
{
// store this so we can work out how much size actually changed
var orgHeight = d_pixelSize.Height;
// ensure that we only size to the set constraints.
//
// NB: We are required to do this here due to our virtually unique sizing nature; the
// normal system for limiting the window size is unable to supply the information we
// require for updating our internal state used to manage the dragging, etc.
var maxHeight = CoordConverter.AsAbsolute(d_maxSize.d_height, GetRootContainerSize().Height);
var minHeight = CoordConverter.AsAbsolute(d_minSize.d_height, GetRootContainerSize().Height);
var newHeight = orgHeight + delta;
if (Math.Abs(maxHeight - 0.0f) > float.Epsilon && newHeight > maxHeight)
{
delta = maxHeight - orgHeight;
}
else if (newHeight < minHeight)
{
delta = minHeight - orgHeight;
}
// ensure adjustment will be whole pixel
var adjustment = /*PixelAligned(*/ delta /*)*/;
outArea.d_max.d_y.d_offset += adjustment;
if (d_verticalAlignment == VerticalAlignment.Bottom)
{
outArea.d_max.d_y.d_offset += adjustment;
outArea.d_min.d_y.d_offset += adjustment;
}
else if (d_verticalAlignment == VerticalAlignment.Centre)
{
outArea.d_max.d_y.d_offset += adjustment * 0.5f;
outArea.d_min.d_y.d_offset += adjustment * 0.5f;
}
// move the dragging point so mouse remains 'attached' to edge of window
_dragPoint.Y += adjustment;
return(d_verticalAlignment == VerticalAlignment.Bottom);
}
public void ResizeViewToContent(ItemView view, bool fitWidth, bool fitHeight)
{
var totalArea = view.GetUnclippedOuterRect().Get();
var contentArea = GetViewRenderArea(view,
!fitWidth && view.GetHorzScrollbar().IsVisible(),
!fitHeight && view.GetVertScrollbar().IsVisible());
var withScrollContentArea = GetViewRenderArea(view, true, true);
var frameSize = totalArea.Size - contentArea.Size;
var withScrollFrameSize = totalArea.Size - withScrollContentArea.Size;
var contentSize = new Sizef(view.GetRenderedMaxWidth(), view.GetRenderedTotalHeight());
var parentSize = view.GetParentPixelSize();
var maxSize =
new Sizef(parentSize.Width - CoordConverter.AsAbsolute(view.GetXPosition(), parentSize.Width),
parentSize.Height - CoordConverter.AsAbsolute(view.GetYPosition(), parentSize.Height));
var requiredSize = frameSize + contentSize + new Sizef(1, 1);
if (fitHeight && requiredSize.Height > maxSize.Height)
{
requiredSize.Height = maxSize.Height;
requiredSize.Width = Math.Min(maxSize.Width,
requiredSize.Width - frameSize.Width + withScrollFrameSize.Width);
}
if (fitWidth && requiredSize.Width > maxSize.Width)
{
requiredSize.Width = maxSize.Width;
requiredSize.Height = Math.Min(maxSize.Height,
requiredSize.Height - frameSize.Height + withScrollFrameSize.Height);
}
if (fitHeight)
{
view.SetHeight(new UDim(0, requiredSize.Height));
}
if (fitWidth)
{
view.SetWidth(new UDim(0, requiredSize.Width));
}
}
/// <summary>
/// Scroll the horizontal list position if needed to ensure that the
/// ItemEntry \a item is, if possible, fully visible witin the
/// ScrolledItemListBase viewable area.
/// </summary>
/// <param name="item">
/// const reference to an ItemEntry attached to this ScrolledItemListBase
/// that should be made visible in the view area.
/// </param>
public void EnsureItemIsVisibleHorz(ItemEntry item)
{
var renderArea = GetItemRenderArea();
var h = GetHorzScrollbar();
var currPos = h.GetScrollPosition();
var left = CoordConverter.AsAbsolute(item.GetXPosition(), GetPixelSize().Width) - currPos;
var right = left + item.GetItemPixelSize().Width;
// if left is left of the view area, or if item too big, scroll item to left
if ((left < renderArea.d_min.X) || ((right - left) > renderArea.Width))
{
h.SetScrollPosition(currPos + left);
}
// if right is right of the view area, scroll item to right of list
else if (right >= renderArea.d_max.X)
{
h.SetScrollPosition(currPos + right - renderArea.Width);
}
}
/// <summary>
/// Scroll the vertical list position if needed to ensure that the ItemEntry
/// \a item is, if possible, fully visible witin the ScrolledItemListBase
/// viewable area.
/// </summary>
/// <param name="item">
/// const reference to an ItemEntry attached to this ScrolledItemListBase
/// that should be made visible in the view area.
/// </param>
public void EnsureItemIsVisibleVert(ItemEntry item)
{
var renderArea = GetItemRenderArea();
var v = GetVertScrollbar();
var currPos = v.GetScrollPosition();
var top = CoordConverter.AsAbsolute(item.GetYPosition(), GetPixelSize().Height) - currPos;
var bottom = top + item.GetItemPixelSize().Height;
// if top is above the view area, or if item is too big, scroll item to top
if ((top < renderArea.d_min.Y) || ((bottom - top) > renderArea.Height))
{
v.SetScrollPosition(currPos + top);
}
// if bottom is below the view area, scroll item to bottom of list
else if (bottom >= renderArea.d_max.Y)
{
v.SetScrollPosition(currPos + bottom - renderArea.Height);
}
}
/// <summary>
/// move the window's top edge by 'delta'.
/// The rest of the window does not move, thus this changes the size of the Window.
/// </summary>
/// <param name="delta">
/// float value that specifies the amount to move the window edge, and in which direction.
/// Positive values make window smaller.
/// </param>
/// <param name="outArea"></param>
/// <returns></returns>
protected bool MoveTopEdge(float delta, ref URect outArea)
{
var orgHeight = d_pixelSize.Height;
// ensure that we only size to the set constraints.
//
// NB: We are required to do this here due to our virtually unique sizing nature; the
// normal system for limiting the window size is unable to supply the information we
// require for updating our internal state used to manage the dragging, etc.
float maxHeight = CoordConverter.AsAbsolute(d_maxSize.d_height, GetRootContainerSize().Height);
float minHeight = CoordConverter.AsAbsolute(d_minSize.d_height, GetRootContainerSize().Height);
float newHeight = orgHeight - delta;
if (Math.Abs(maxHeight - 0.0f) > float.Epsilon && newHeight > maxHeight)
{
delta = orgHeight - maxHeight;
}
else if (newHeight < minHeight)
{
delta = orgHeight - minHeight;
}
// ensure adjustment will be whole pixel
float adjustment = /*PixelAligned(*/ delta /*)*/;
if (d_verticalAlignment == VerticalAlignment.Bottom)
{
outArea.d_max.d_y.d_offset -= adjustment;
}
else if (d_verticalAlignment == VerticalAlignment.Centre)
{
outArea.d_max.d_y.d_offset -= adjustment * 0.5f;
outArea.d_min.d_y.d_offset += adjustment * 0.5f;
}
else
{
outArea.d_min.d_y.d_offset += adjustment;
}
return(d_verticalAlignment == VerticalAlignment.Top);
}
public override float GetValueFromThumb()
{
var w = (Scrollbar)Window;
var wlf = GetLookNFeel();
var area = wlf.GetNamedArea("ThumbTrackArea").GetArea().GetPixelRect(w);
var theThumb = w.GetThumb();
var posExtent = w.GetDocumentSize() - w.GetPageSize();
if (_vertical)
{
var slideExtent = area.Height - theThumb.GetPixelSize().Height;
return((CoordConverter.AsAbsolute(theThumb.GetYPosition(), w.GetPixelSize().Height) - area.Top) /
(slideExtent / posExtent));
}
else
{
var slideExtent = area.Width - theThumb.GetPixelSize().Width;
return((CoordConverter.AsAbsolute(theThumb.GetXPosition(), w.GetPixelSize().Width) - area.Left) /
(slideExtent / posExtent));
}
}
/// <summary>
/// Update state for drag sizing.
/// </summary>
/// <param name="localMouse">
/// Mouse position as a pixel offset from the top-left corner of this window.
/// </param>
protected void DoDragSizing(Lunatics.Mathematics.Vector2 localMouse)
{
var delta = localMouse.X - _dragPoint.X;
// store this so we can work out how much size actually changed
var orgWidth = d_pixelSize.Width;
// ensure that we only size to the set constraints.
//
// NB: We are required to do this here due to our virtually unique sizing nature; the
// normal system for limiting the window size is unable to supply the information we
// require for updating our internal state used to manage the dragging, etc.
var maxWidth = CoordConverter.AsAbsolute(d_maxSize.d_width, GetRootContainerSize().Width);
var minWidth = CoordConverter.AsAbsolute(d_minSize.d_width, GetRootContainerSize().Width);
var newWidth = orgWidth + delta;
if (maxWidth != 0.0f && newWidth > maxWidth)
{
delta = maxWidth - orgWidth;
}
else if (newWidth < minWidth)
{
delta = minWidth - orgWidth;
}
// update segment area rect
// URGENT FIXME: The pixel alignment will be done automatically again, right? Why is it done here? setArea_impl will do it!
var area = new URect(d_area.d_min.d_x, d_area.d_min.d_y,
d_area.d_max.d_x + new UDim(0, /*PixelAligned(*/ delta /*)*/), d_area.d_max.d_y);
SetAreaImpl(area.d_min, area.Size);
// move the dragging point so mouse remains 'attached' to edge of segment
_dragPoint.X += d_pixelSize.Width - orgWidth;
OnSegmentSized(new WindowEventArgs(this));
}
// overridden from base class.
public override void CreateRenderGeometry()
{
var w = (MultiColumnList)Window;
var header = w.GetListHeader();
var vertScrollbar = w.GetVertScrollbar();
var horzScrollbar = w.GetHorzScrollbar();
// render general stuff before we handle the items
CacheListboxBaseImagery();
//
// Render list items
//
Lunatics.Mathematics.Vector3 itemPos;
var itemRect = new Rectf();
// calculate position of area we have to render into
var itemsArea = GetListRenderArea();
// set up initial positional details for items
itemPos.Y = itemsArea.Top - vertScrollbar.GetScrollPosition();
itemPos.Z = 0.0f;
var alpha = w.GetEffectiveAlpha();
// loop through the items
for (var i = 0; i < w.GetRowCount(); ++i)
{
// set initial x position for this row.
itemPos.X = itemsArea.Left - horzScrollbar.GetScrollPosition();
// calculate height for this row.
Sizef itemSize;
itemSize.Height = w.GetHighestRowItemHeight(i);
// loop through the columns in this row
for (var j = 0; j < w.GetColumnCount(); ++j)
{
// allow item to use full width of the column
itemSize.Width = CoordConverter.AsAbsolute(header.GetColumnWidth(j), header.GetPixelSize().Width);
var item = w.GetItemAtGridReference(new MCLGridRef(i, j));
// is the item for this column set?
if (item != null)
{
// calculate destination area for this item.
itemRect.Left = itemPos.X;
itemRect.Top = itemPos.Y;
itemRect.Size = itemSize;
var itemClipper = itemRect.GetIntersection(itemsArea);
// skip this item if totally clipped
if (itemClipper.Width == 0f)
{
itemPos.X += itemSize.Width;
continue;
}
// draw this item
item.CreateRenderGeometry(itemRect, alpha, itemClipper);
}
// update position for next column.
itemPos.X += itemSize.Width;
}
// update position ready for next row
itemPos.Y += itemSize.Height;
}
}
