// overriden from ListboxWindowRenderer
public override void CreateRenderGeometry()
{
var lb = (Listbox)Window;
// render frame and stuff before we handle the items
CacheListboxBaseImagery();
//
// Render list items
//
Lunatics.Mathematics.Vector3 itemPos;
var itemRect = new Rectf();
var widest = lb.GetWidestItemWidth();
// calculate position of area we have to render into
var itemsArea = GetListRenderArea();
// set up some initial positional details for items
itemPos.X = itemsArea.Left - lb.GetHorzScrollbar().GetScrollPosition();
itemPos.Y = itemsArea.Top - lb.GetVertScrollbar().GetScrollPosition();
itemPos.Z = 0.0f;
var alpha = lb.GetEffectiveAlpha();
// loop through the items
var itemCount = lb.GetItemCount();
for (var i = 0; i < itemCount; ++i)
{
var listItem = lb.GetListboxItemFromIndex(i);
Sizef itemSize;
itemSize.Height = listItem.GetPixelSize().Height;
// allow item to have full width of box if this is wider than items
itemSize.Width = Math.Max(itemsArea.Width, widest);
// 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 (Math.Abs(itemClipper.Width - 0) < float.Epsilon)
{
itemPos.Y += itemSize.Height;
continue;
}
// draw this item
Window.AppendGeometryBuffers(listItem.CreateRenderGeometry(itemRect, alpha, itemClipper));
// update position ready for next item
itemPos.Y += itemSize.Height;
}
}
private void CreateRenderGeometry(ListView listView)
{
var itemsArea = GetViewRenderArea();
var itemPos = _itemViewRenderer.GetItemRenderStartPosition(listView, itemsArea);
for (var i = 0; i < listView.GetItems().Count; ++i)
{
var item = listView.GetItems()[i];
var renderedString = item.d_string;
var size = item.d_size;
size.Width = Math.Max(itemsArea.Width, size.Width);
var itemRect = new Rectf(itemPos, size);
if (!string.IsNullOrEmpty(item.d_icon))
{
var img = ImageManager.GetSingleton().Get(item.d_icon);
var iconRect = itemRect;
iconRect.Width = size.Height;
iconRect.Height = size.Height;
var iconClipper = iconRect.GetIntersection(itemsArea);
var renderSettings = new ImageRenderSettings(iconRect, iconClipper, true, ICON_COLOUR_RECT, 1.0f);
var imgGeomBuffers = img.CreateRenderGeometry(renderSettings);
if (item.d_isSelected)
{
renderSettings = new ImageRenderSettings(iconRect, iconClipper, true, listView.GetSelectionColourRect());
var brushGeomBuffers = listView.GetSelectionBrushImage().CreateRenderGeometry(renderSettings);
listView.AppendGeometryBuffers(brushGeomBuffers);
}
listView.AppendGeometryBuffers(imgGeomBuffers);
itemRect.Left = itemRect.Left + iconRect.Width;
}
var itemClipper = itemRect.GetIntersection(itemsArea);
_itemViewRenderer.CreateRenderGeometryAndAddToItemView(listView, renderedString, itemRect,
listView.GetFont(), itemClipper,
item.d_isSelected);
itemPos.Y += size.Height;
}
}
protected internal override void OnCursorPressHold(CursorInputEventArgs e)
{
// Base class processing
base.OnCursorPressHold(e);
if (e.Source == CursorInputSource.Left)
{
if ((d_parent != null) && _dragEnabled)
{
// we want all cursor inputs from now on
if (CaptureInput())
{
// initialise the dragging state
_dragging = true;
_dragPoint = CoordConverter.ScreenToWindow(this, e.Position);
// store old constraint area
_oldCursorArea = GetGUIContext().GetCursor().GetConstraintArea();
// setup new constraint area to be the intersection of the old area and our grand-parent's clipped inner-area
Rectf constrainArea;
if ((d_parent == null) || (GetParent().GetParent() == null))
{
var screen = new Rectf(Lunatics.Mathematics.Vector2.Zero, GetRootContainerSize());
constrainArea = screen.GetIntersection(_oldCursorArea);
}
else
{
constrainArea = GetParent().GetParent().GetInnerRectClipper().GetIntersection(_oldCursorArea);
}
GetGUIContext().GetCursor().SetConstraintArea(constrainArea);
}
}
++e.handled;
}
}
// 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;
}
}
