Common-VS2019/SacsMobileMaui/Maui/Panels/SamPanel_ItemListSummary.cs

using Sarand.Net.Mobile.Maui.Controls;
using Sarand.Net.Mobile.Maui.Layouts;
using Sarand.Net.Mobile.Maui.Utils;
using Sarand.Net.Mobile.Maui.Views;
using Sarand.Net.Standard.Base.Core;
using Sarand.Net.Standard.Base.Helpers;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Sarand.Net.Mobile.Maui.Panels
{
	//=======================================================================
	/// <summary>
	/// Panel to display with item list where no filter required, eg. items associated with parent.
	/// <para>- Message shown to left</para>
	/// <para>- Buttons shown to right</para>
	/// </summary>
	public class SamPanel_ItemListSummary : SamContentView
	{
		//-------------------------------------------------------------------
		// Definitions.

		//-------------------------------------------------------------------
		// Data members.
		private SacsMessage? message;
		private bool showAddButton = false;
		private double actionButtonSpacing = 4.0;
		// Panel layout.
		private SamStackLayout panelLayout = new SamStackLayout() { Orientation = StackOrientation.Horizontal };
		private SamContentView panelMessage = new SamContentView();
		private SamLabel labelMessage = new SamLabel() { HorizontalOptions = LayoutOptions.Start };
		// Action buttons.
		private SamStackLayout panelActions = new SamStackLayout() { Orientation = StackOrientation.Horizontal };
		private SamImageButton buttonAddItem = new SamImageButton() { IsVisible = false, HorizontalOptions = LayoutOptions.End, VerticalOptions = LayoutOptions.Start };

		//-------------------------------------------------------------------
		// Construction.
		public SamPanel_ItemListSummary()
		{
			// Panel layout.
			panelLayout.HorizontalOptions = LayoutOptions.Fill;
			Content = panelLayout;

			// Message.
			panelMessage.HorizontalOptions = LayoutOptions.Fill;
			panelMessage.VerticalOptions = LayoutOptions.Fill;
			//panelMessage.BackgroundColor = Color.LightGoldenrodYellow;
			panelLayout.Children.Add(panelMessage);
			labelMessage.HorizontalOptions = LayoutOptions.Center;
			labelMessage.VerticalOptions = LayoutOptions.Center;
			panelMessage.Content = labelMessage;

			// Action buttons.
			panelActions.HorizontalOptions = LayoutOptions.EndAndExpand;
			panelLayout.Children.Add(panelActions);

			// 'Add' button.
			buttonAddItem.IsVisible = showAddButton;
			buttonAddItem.Padding = new Thickness(0, 0, actionButtonSpacing, 0);
			buttonAddItem.BackgroundColor = Colors.Transparent;
			buttonAddItem.Source = SamImageUtil.GetImageFromByteArray(SacsResourceHelper.GetResourceImage(SacsResourceHelper.ImageResource.IconShock_Add_Green_72_png));
			buttonAddItem.Clicked += ButtonAddItem_Clicked;
			panelActions.Children.Add(buttonAddItem);
		}

		//-------------------------------------------------------------------
		// Properties.
		// Message.
		public double MessageFontSizeDefault { get { return labelMessage.FontSizeDefault; } }
		public double MessageFontSize
		{
			get { return labelMessage.FontSize; }
			set { labelMessage.FontSize = value; }
		}
		// Action buttons.
		public double ActionButtonSpacing
		{
			get { return actionButtonSpacing; }
			set
			{
				if (actionButtonSpacing == value) return;
				buttonAddItem.Padding = new Thickness(0, 0, actionButtonSpacing, 0);
			}
		}
		public bool ShowAddButton
		{
			get { return showAddButton; }
			set { if (showAddButton == value) return; showAddButton = value; buttonAddItem.IsVisible = showAddButton; }
		}

		//-------------------------------------------------------------------
		//                           M e s s a g e
		//-------------------------------------------------------------------
		public void ClearMessage()
		{
			message = null;
			labelMessage.Text = "";
		}
		public void SetMessage(String message, SaMessageLevel messageLevel = SaMessageLevel.Info)
		{
			SetMessage(new SacsMessage(message, messageLevel));
		}
		public void SetMessage(SacsMessage message)
		{
			this.message = message;
			labelMessage.Text = (message != null ? message.Message : "");
		}

		//-------------------------------------------------------------------
		//                    A c t i o n   B u t t o n s
		//-------------------------------------------------------------------

		//-------------------------------------------------------------------
		//                      P a n e l   E v e n t s
		//-------------------------------------------------------------------
		public event EventHandler<EventArgs>? AddClicked;
		protected virtual void ButtonAddItem_Clicked(object? sender, EventArgs e)
		{
			if (AddClicked != null) AddClicked.Invoke(sender, e);
		}

		//-------------------------------------------------------------------
	}
	//=======================================================================
}