public static int nk_tree_state_base(this NuklearContext ctx, int type, nk_image img, string title,
ref int state)
{
nk_window win;
nk_panel layout;
nk_style style;
CommandBuffer _out_;
nk_input _in_;
nk_style_button button;
nk_symbol_type symbol;
float row_height;
var item_spacing = new Vector2();
var header = new RectangleF();
var sym = new RectangleF();
var text = new nk_text();
uint ws = 0;
int widget_state;
if (ctx == null || ctx.current == null || ctx.current.Layout == null)
{
return(0);
}
win = ctx.current;
layout = win.Layout;
_out_ = win.Buffer;
style = ctx.style;
item_spacing = style.window.spacing;
row_height = style.font.Size + 2 * style.tab.padding.Y;
ctx.LayoutSetMinRowHeight(row_height);
ctx.LayoutRowDynamic(row_height, 1);
ctx.LayoutResetMinRowHeight();
widget_state = ctx.Widget(ref header);
if (type == NK_TREE_TAB)
{
var background = style.tab.background;
if (background.type == NK_STYLE_ITEM_IMAGE)
{
_out_.DrawImage(header, background.Image, nk_white);
text.Background = Color.Transparent;
}
else
{
text.Background = background.Color;
_out_.FillRect(header, 0, style.tab.border_color);
_out_.FillRect(RectangleF.nk_shrink_rect_(header, style.tab.border),
style.tab.Rounding, background.Color);
}
}
else
{
text.Background = style.window.background;
}
_in_ = (layout.Flags & NK_WINDOW_ROM) == 0 ? ctx.input : null;
_in_ = _in_ != null && widget_state == NK_WIDGET_VALID ? ctx.input : null;
if (ButtonBehavior(ref ws, header, _in_, NK_BUTTON_DEFAULT))
{
state = state == NK_MAXIMIZED ? NK_MINIMIZED : NK_MAXIMIZED;
}
if (state == NK_MAXIMIZED)
{
symbol = style.tab.sym_maximize;
if (type == NK_TREE_TAB)
{
button = style.tab.tab_maximize_button;
}
else
{
button = style.tab.node_maximize_button;
}
}
else
{
symbol = style.tab.sym_minimize;
if (type == NK_TREE_TAB)
{
button = style.tab.tab_minimize_button;
}
else
{
button = style.tab.node_minimize_button;
}
}
{
sym.Width = sym.Height = style.font.Size;
sym.Y = header.Y + style.tab.padding.Y;
sym.X = header.X + style.tab.padding.X;
DoButtonSymbol(ref ws, win.Buffer, sym, symbol, NK_BUTTON_DEFAULT, button, null,
style.font);
if (img != null)
{
sym.X = sym.X + sym.Width + 4 * item_spacing.X;
win.Buffer.DrawImage(sym, img, nk_white);
sym.Width = style.font.Size + style.tab.spacing.X;
}
}
{
var label = new RectangleF();
header.Width = header.Width < sym.Width + item_spacing.X ? sym.Width + item_spacing.X : header.Width;
label.X = sym.X + sym.Width + item_spacing.X;
label.Y = sym.Y;
label.Width = header.Width - (sym.Width + item_spacing.Y + style.tab.indent);
label.Height = style.font.Size;
text.text = style.tab.text;
text.padding = new Vector2(0, 0);
_out_.WidgetText(label, title, &text, nk_text_align.NK_TEXT_LEFT, style.font);
}
if (state == NK_MAXIMIZED)
{
layout.At_x = header.X + layout.Offset.X + style.tab.indent;
layout.Bounds.Width = layout.Bounds.Width < style.tab.indent ? style.tab.indent : layout.Bounds.Width;
layout.Bounds.Width -= style.tab.indent + style.window.padding.X;
layout.Row.tree_depth++;
return(nk_true);
}
return(nk_false);
}
