using System.Drawing;
using System.Windows.Forms;
using PDFPatcher.Common;

namespace PDFPatcher.Functions.Editor
{
	sealed class ViewerCommand : IEditorCommand
	{
		static readonly Color __DarkModeColor = Color.DarkGray;
		static readonly Color __GreenModeColor = Color.FromArgb(0xCC, 0xFF, 0xCC);
		static readonly string[] __commands = {
			"_FirstPage",
			"_PreviousPage",
			"_NextPage",
			"_LastPage",
			"_ScrollVertical",
			"_ScrollHorizontal",
			"_TrueColorSpace",
			"_GrayColorSpace",
			"_InvertColor",
			"_MoveMode",
			"_SelectionMode",
			"_FullPageScroll",
			"_ShowTextBorders",
			"_DarkMode",
			"_GreenMode",
			"_ShowBookmarks",
			"_ShowAnnotations",
			"_OcrDetectPunctuation",
			"_FullScreen"
		};
		internal static void RegisterCommands(CommandRegistry<Controller> registry) {
			foreach (var item in __commands) {
				registry.Register(new ViewerCommand(item), item);
			}
		}

		readonly string _command;

		public ViewerCommand(string command) {
			_command = command;
		}

		public void Process(Controller controller, params string[] parameters) {
			var v = controller.View.Viewer;
			switch (_command) {
				case "_FirstPage":
				case "_PreviousPage":
				case "_NextPage":
				case "_LastPage": v.ExecuteCommand(_command); break;
				case "_ScrollVertical": v.ContentDirection = Editor.ContentDirection.TopToDown; break;
				case "_ScrollHorizontal": v.ContentDirection = Editor.ContentDirection.RightToLeft; break;
				case "_TrueColorSpace": v.GrayScale = false; break;
				case "_GrayColorSpace": v.GrayScale = true; break;
				case "_InvertColor": v.InvertColor = !v.InvertColor; break;
				case "_MoveMode": v.MouseMode = Editor.MouseMode.Move; break;
				case "_SelectionMode": v.MouseMode = Editor.MouseMode.Selection; break;
				case "_FullPageScroll": v.FullPageScroll = !v.FullPageScroll; break;
				case "_ShowTextBorders": v.ShowTextBorders = !v.ShowTextBorders; break;
				case "_DarkMode": v.TintColor = v.TintColor != __DarkModeColor ? __DarkModeColor : Color.Transparent; break;
				case "_GreenMode": v.TintColor = v.TintColor != __GreenModeColor ? __GreenModeColor : Color.Transparent; break;
				case "_ShowAnnotations": v.HideAnnotations = !v.HideAnnotations; break;
				case "_ShowBookmarks": controller.View.MainPanel.Panel1Collapsed = !controller.View.MainPanel.Panel1Collapsed; break;
				case "_OcrDetectPunctuation": v.OcrOptions.DetectContentPunctuations = !v.OcrOptions.DetectContentPunctuations; break;
				case "_FullScreen": AppContext.MainForm.FullScreen = !AppContext.MainForm.FullScreen; break;
			}
		}

	}
}