/// @description 
if !ready exit;

#region base UI
	var p = ui(8);
	var m_in = point_in_rectangle(mouse_mx, mouse_my, dialog_x + p, dialog_y + p, dialog_x + dialog_w - p, dialog_y + dialog_h - p);
	var m_ot = point_in_rectangle(mouse_mx, mouse_my, dialog_x, dialog_y, dialog_x + dialog_w, dialog_y + dialog_h);
	
	DIALOG_DRAW_BG
#endregion

#region content
	if(!is_undefined(content) && content != noone) {
		content.panel = self;
		
		var cx = dialog_x + content.showHeader * padding;
		var cy = dialog_y + content.showHeader * (padding + title_height);
		content.x = cx;
		content.y = cy;
		content.onStepBegin();
		
		content.pFOCUS = sFOCUS && m_in;
		content.pHOVER = sHOVER && m_in;
		
		panel = surface_verify(panel, dialog_w - content.showHeader * padding * 2, 
									  dialog_h - content.showHeader * (padding * 2 + title_height));
		if(!is_surface(mask_surface))
			resetMask();
		
		surface_set_target(panel);
			draw_clear(COLORS.panel_bg_clear);
			content.drawContent(panel);
			
			gpu_set_blendmode(bm_subtract);
			draw_surface_safe(mask_surface);
			gpu_set_blendmode(bm_normal);
		surface_reset_target();
		
		content.drawGUI();
		
		draw_surface(panel, cx, cy);
	}
#endregion

#region overlay
	if(content.showHeader) {
		draw_sprite_stretched_ext(THEME.ui_panel_bg, 3, dialog_x + 3, dialog_y + 3, dialog_w - 6, title_height + 2, COLORS._main_icon_light, 1);
		draw_set_text(f_p2, fa_left, fa_top, COLORS._main_text_sub);
		draw_text_cut(dialog_x + ui(32), dialog_y + ui(8), content.title, dialog_w - ui(32 + 32));
		
		var _bx = dialog_x + dialog_w - ui(28);
		var _by = dialog_y + ui(8);
		var _bs = ui(20);
		
		if(instanceof(content) != "Panel_Menu")
		if(buttonInstant(THEME.button_hide, _bx, _by, _bs, _bs, mouse_ui, sFOCUS, sHOVER, "", THEME.window_exit) == 2) {
			onDestroy();
			instance_destroy();
		}
		
		_bx -= ui(8);
		// draw_set_color(COLORS.panel_toolbar_separator);
		// draw_line_width(_bx + ui(4), _by, _bx + ui(4), _by + _bs, 2);
		
		for (var i = 0, n = array_length(content.title_actions); i < n; i++) {
			var _b = content.title_actions[i];
			
			_bx -= _bs;
			_b.setFocusHover(sFOCUS, sHOVER);
			_b.draw(_bx, _by, _bs, _bs, mouse_ui, THEME.button_hide);
			_bs -= ui(4);
		}
	} 
	
	var bx  = content.showHeader? dialog_x + ui(8) : dialog_x + ui(24);
	var by  = content.showHeader? dialog_y + ui(8) : dialog_y + ui(18);
	var txt = destroy_on_click_out? __txt("Pin") : __txt("Unpin");
	var cc  = destroy_on_click_out? COLORS._main_icon : COLORS._main_icon_light;
	var ind = !destroy_on_click_out;
	var ss  = content.showHeader? ui(20) : ui(28);
	var sc  = content.showHeader? 0.75 : 1;
	
	if(instanceof(content) != "Panel_Menu")
	if(buttonInstant(THEME.button_hide, bx, by, ss, ss, mouse_ui, sFOCUS, sHOVER, txt, THEME.pin, ind, cc,, sc) == 2)
		destroy_on_click_out = !destroy_on_click_out;
	
	if(sFOCUS) {
		DIALOG_DRAW_FOCUS
		
		if(!m_in && m_ot) {
			var p  = DIALOG_PAD;
			var p2 = DIALOG_PAD * 2;
			draw_sprite_stretched_ext(THEME.dialog, 1, dialog_x - p, dialog_y - p, dialog_w + p2, dialog_h + p2, c_white, 0.4);
				
			if(DOUBLE_CLICK) {
				content.dragSurface = surface_clone(panel);
				o_main.panel_dragging = content;
				content.in_dialog = false;
			
				instance_destroy();
			} else if(mouse_press(mb_right)) {
				menuCall("panel_window_menu",,, [
					menuItem(__txt("Move"),    function() { 
						content.dragSurface = surface_clone(panel);
						o_main.panel_dragging = content;
						content.in_dialog = false;
						panel_mouse = 1;
					
						instance_destroy();
					}),
				],, content);
			}
			
		}
	}
#endregion