private void PaintList(Cairo.Context cr, Rectangle clip)
{
if (ChildSize.Height <= 0)
{
return;
}
// TODO factor this out?
// Render the sort effect to the GdkWindow.
if (sort_column_index != -1 && (!pressed_column_is_dragging || pressed_column_index != sort_column_index))
{
CachedColumn col = column_cache[sort_column_index];
StyleContext.AddRegion("column", RegionFlags.Sorted);
StyleContext.RenderBackground(cr,
list_rendering_alloc.X + col.X1 - HadjustmentValue,
header_rendering_alloc.Bottom + Theme.BorderWidth,
col.Width, list_rendering_alloc.Height + Theme.InnerBorderWidth * 2);
StyleContext.RemoveRegion("column");
}
clip.Intersect(list_rendering_alloc);
cr.Rectangle(clip.X, clip.Y, clip.Width, clip.Height);
cr.Clip();
cell_context.Clip = clip;
cell_context.TextAsForeground = false;
int vadjustment_value = VadjustmentValue;
int first_row = vadjustment_value / ChildSize.Height;
int last_row = Math.Min(model.Count, first_row + RowsInView);
int offset = list_rendering_alloc.Y - vadjustment_value % ChildSize.Height;
Rectangle selected_focus_alloc = Rectangle.Zero;
Rectangle single_list_alloc = new Rectangle();
single_list_alloc.X = list_rendering_alloc.X - HadjustmentValue;
single_list_alloc.Y = offset;
single_list_alloc.Width = list_rendering_alloc.Width + HadjustmentValue;
single_list_alloc.Height = ChildSize.Height;
int selection_height = 0;
int selection_y = 0;
selected_rows.Clear();
for (int ri = first_row; ri < last_row; ri++)
{
if (Selection != null && Selection.Contains(ri))
{
if (selection_height == 0)
{
selection_y = single_list_alloc.Y;
}
selection_height += single_list_alloc.Height;
selected_rows.Add(ri);
if (Selection.FocusedIndex == ri)
{
selected_focus_alloc = single_list_alloc;
}
}
else
{
StyleContext.AddClass("cell");
if (rules_hint) // TODO: check also gtk_widget_style_get(widget,"allow-rules",&allow_rules,NULL);
{
StyleContext.AddRegion("row", ri % 2 != 0 ? RegionFlags.Odd : RegionFlags.Even);
}
StyleContext.RenderBackground(cr, single_list_alloc.X, single_list_alloc.Y,
single_list_alloc.Width, single_list_alloc.Height);
StyleContext.RemoveRegion("row");
StyleContext.RemoveClass("cell");
PaintReorderLine(cr, ri, single_list_alloc);
if (Selection != null && Selection.FocusedIndex == ri && !Selection.Contains(ri) && HasFocus)
{
CairoCorners corners = CairoCorners.All;
if (Selection.Contains(ri - 1))
{
corners &= ~(CairoCorners.TopLeft | CairoCorners.TopRight);
}
if (Selection.Contains(ri + 1))
{
corners &= ~(CairoCorners.BottomLeft | CairoCorners.BottomRight);
}
if (HasFocus && !HeaderFocused) // Cursor out of selection.
{
Theme.DrawRowCursor(cr, single_list_alloc.X, single_list_alloc.Y,
single_list_alloc.Width, single_list_alloc.Height,
CairoExtensions.ColorShade(CairoExtensions.GdkRGBAToCairoColor(StyleContext.GetBackgroundColor(StateFlags.Selected)), 0.85));
}
}
if (selection_height > 0)
{
StyleContext.AddClass("cell");
var bg_selected_color = StyleContext.GetBackgroundColor(StateFlags.Selected);
if (bg_selected_color.Equals(StyleContext.GetBackgroundColor(StateFlags.Normal)))
{
// see https://bugs.launchpad.net/bugs/1211831
Hyena.Log.Warning("Buggy CSS theme: same background-color for .cell:selected and .cell");
StyleContext.RemoveClass("cell");
bg_selected_color = StyleContext.GetBackgroundColor(StateFlags.Selected);
StyleContext.AddClass("cell");
}
Cairo.Color selection_color = CairoExtensions.GdkRGBAToCairoColor(bg_selected_color);
if (!HasFocus || HeaderFocused)
{
selection_color = CairoExtensions.ColorShade(selection_color, 1.1);
}
Theme.DrawRowSelection(cr, list_rendering_alloc.X, selection_y, list_rendering_alloc.Width, selection_height,
true, true, selection_color, CairoCorners.All);
StyleContext.RemoveClass("cell");
selection_height = 0;
}
PaintRow(cr, ri, single_list_alloc, StateFlags.Normal);
}
single_list_alloc.Y += single_list_alloc.Height;
}
// In case the user is dragging to the end of the list
PaintReorderLine(cr, last_row, single_list_alloc);
if (selection_height > 0)
{
Theme.DrawRowSelection(cr, list_rendering_alloc.X, selection_y,
list_rendering_alloc.Width, selection_height);
}
if (Selection != null && Selection.Count > 1 &&
!selected_focus_alloc.Equals(Rectangle.Zero) &&
HasFocus && !HeaderFocused) // Cursor inside selection.
// Use entry to get text color
{
StyleContext.Save();
StyleContext.AddClass("entry");
Cairo.Color text_color = CairoExtensions.GdkRGBAToCairoColor(StyleContext.GetColor(StateFlags.Selected));
StyleContext.Restore();
Theme.DrawRowCursor(cr, selected_focus_alloc.X, selected_focus_alloc.Y,
selected_focus_alloc.Width, selected_focus_alloc.Height, text_color);
}
foreach (int ri in selected_rows)
{
single_list_alloc.Y = offset + ((ri - first_row) * single_list_alloc.Height);
PaintRow(cr, ri, single_list_alloc, StateFlags.Selected);
}
cr.ResetClip();
}
private void PaintHeaderCell(Cairo.Context cr, Rectangle area, int ci, bool dragging)
{
if (ci < 0 || column_cache.Length <= ci)
{
return;
}
var column_flags = new RegionFlags();
if (ci == sort_column_index)
{
column_flags |= RegionFlags.Sorted;
}
if (ci == 0)
{
column_flags |= RegionFlags.First;
}
if (ci == (column_cache.Length - 1))
{
column_flags |= RegionFlags.Last;
}
// First column should be odd, but ci starts at 0
if ((ci + 1) % 2 == 0)
{
column_flags |= RegionFlags.Even;
}
else
{
column_flags |= RegionFlags.Odd;
}
StyleContext.Save();
// RegionFlags.Last is not applied, see https://bugzilla.gnome.org/show_bug.cgi?id=731463
StyleContext.AddRegion("column-header", column_flags);
StyleContext.AddClass("button");
if (dragging)
{
// This is not applied in Adwaita, see https://bugzilla.gnome.org/show_bug.cgi?id=731663
StyleContext.AddClass("dnd");
}
StyleContext.RenderBackground(cr, area.X, area.Y, area.Width, area.Height);
StyleContext.RenderFrame(cr, area.X, area.Y, area.Width, area.Height);
if (ci == ActiveColumn && HasFocus && HeaderFocused)
{
var border = StyleContext.GetBorder(StyleContext.State);
var f_x = area.X + border.Left;
var f_y = area.Y + border.Top;
var f_width = area.Width - border.Left - border.Right;
var f_height = area.Height - border.Top - border.Bottom;
StyleContext.RenderFocus(cr, f_x, f_y, f_width, f_height);
}
ColumnCell cell = column_cache[ci].Column.HeaderCell;
if (cell != null)
{
cr.Save();
cr.Translate(area.X, area.Y);
cell_context.Area = area;
cell_context.Selected = false;
cell.Render(cell_context, area.Width, area.Height);
cr.Restore();
}
StyleContext.Restore();
}
