using System;
using System.ComponentModel;
using System.Windows.Forms;
using PDFPatcher.Common;
using PDFPatcher.Model;

namespace PDFPatcher.Functions
{
	[ToolboxItem(false)]
	public partial class MergerOptionForm : Form, IResettableControl
	{
		string paperName;
		bool _uiLockDown;

		public MergerOptionForm() {
			InitializeComponent();
			this.OnFirstLoad(OnLoad);
		}

		void OnLoad() {
			this.SetIcon(Properties.Resources.PdfOptions);
			MinimumSize = Size;

			_AutoBookmarkTitleBox.CheckedChanged += CheckBoxChanged;
			_KeepSourcePdfBookmarkBox.CheckedChanged += CheckBoxChanged;
			_UnifyOrientationBox.CheckedChanged += CheckBoxChanged;
			_SubFoldersBeforeFilesBox.Checked = true;
			_PageSizeBox.Items.AddRange(Array.FindAll(Processor.PdfDocumentCreator.PaperSizes, i => i.SpecialSize < SpecialPaperSize.AsSpecificPage));
			_ImageHAlignBox.Items.Add("水平居中");
			_ImageHAlignBox.Items.Add("左对齐");
			_ImageHAlignBox.Items.Add("右对齐");
			_ImageVAlignBox.Items.Add("垂直居中");
			_ImageVAlignBox.Items.Add("置顶");
			_ImageVAlignBox.Items.Add("置底");

			Reload();
		}

		public void Reset() {
			AppContext.Merger = new MergerOptions();
			Reload();
		}

		public void Reload() {
			_uiLockDown = true;
			var options = AppContext.Merger;
			var ps = options.PageSettings;
			_AutoBookmarkTitleBox.Checked = options.AutoBookmarkTitle;
			_AutoMaskBWImageBox.Checked = options.AutoMaskBWImages;
			_AutoRotateBox.Checked = ps.AutoRotation;
			_AutoScaleDownBox.Checked = options.AutoScaleDown;
			_AutoScaleUpBox.Checked = options.AutoScaleUp;
			_BottomMarginBox.SetValue(ps.Margins.Bottom / Constants.Units.CmToPoint);
			_CajSortBox.Checked = options.CajSort;
			_HeightBox.SetValue(ps.PaperSize.Height / Constants.Units.CmToPoint);
			_IgnoreLeadingNumbersBox.Checked = options.IgnoreLeadingNumbers;
			_ImageHAlignBox.SelectedIndex = (int)ps.HorizontalAlign;
			_ImageVAlignBox.SelectedIndex = (int)ps.VerticalAlign;
			_KeepSourcePdfBookmarkBox.Checked = options.KeepBookmarks;
			_LeftMarginBox.SetValue(ps.Margins.Left / Constants.Units.CmToPoint);
			for (int i = 0; i < _PageSizeBox.Items.Count; i++) {
				var p = _PageSizeBox.Items[i] as PaperSize;
				if (p.PaperName == ps.PaperSize.PaperName) {
					_PageSizeBox.SelectedIndex = i;
				}
			}
			if (_PageSizeBox.SelectedIndex == -1) {
				_PageSizeBox.SelectedIndex = 0;
			}
			_NumericAwareSortBox.Checked = options.NumericAwareSort;
			_RemoveOrphanBoomarksBox.Checked = options.RemoveOrphanBookmarks;
			_ResizePdfPagesBox.Checked = !ps.ScaleContent;
			_ExtraEmptyPageBox.Checked = options.ExtraEmptyPageForOddPdf;
			_RightMarginBox.SetValue(ps.Margins.Right / Constants.Units.CmToPoint);
			switch (options.SubFolder) {
				case MergerOptions.SubFolderPosition.BeforeFiles:
					_SubFoldersBeforeFilesBox.Checked = true;
					break;
				case MergerOptions.SubFolderPosition.WithFiles:
					_SubFolderWithFilesBox.Checked = true;
					break;
				case MergerOptions.SubFolderPosition.Exclude:
					_ExcludeSubFoldersBox.Checked = true;
					break;
			}
			_ScalePdfPagesBox.Checked = ps.ScaleContent;
			_TopMarginBox.SetValue(ps.Margins.Top / Constants.Units.CmToPoint);
			_WidthBox.SetValue(ps.PaperSize.Width / Constants.Units.CmToPoint);
			if (_PageSizeBox.SelectedIndex == 0) {
				_HeightBox.Value = 26.01M;
				_WidthBox.Value = 18M;
			}

			_SourceOrientationBox.SelectedIndex = options.RotateVerticalPages ? 1 : 0;
			_RotationBox.SelectedIndex = options.RotateAntiClockwise ? 1 : 0;
			_UnifyOrientationBox.Checked = options.UnifyPageOrientation;
			_DeduplicateBox.Checked = options.Deduplicate;
			_RecompressImageBox.Checked = options.RecompressWithJbig2;
			_FullCompressionBox.Checked = options.FullCompression;
			_DpiXBox.SetValue(options.DpiX);
			_DpiYBox.SetValue(options.DpiY);
			_DocumentInfoEditor.Options = options.MetaData;
			_ViewerSettingsEditor.Options = options.ViewerPreferences;
			_PageLabelEditor.Labels = options.PageLabels;

			_uiLockDown = false;
		}

		protected override void OnClosed(EventArgs e) {
			var option = AppContext.Merger;
			var ps = option.PageSettings;
			option.AutoBookmarkTitle = _AutoBookmarkTitleBox.Checked;
			option.AutoMaskBWImages = _AutoMaskBWImageBox.Checked;
			ps.AutoRotation = _AutoRotateBox.Checked;
			option.AutoScaleDown = _AutoScaleDownBox.Checked;
			option.AutoScaleUp = _AutoScaleUpBox.Checked;
			option.CajSort = _CajSortBox.Checked;
			ps.Margins.Top = CmToPoint(_TopMarginBox);
			ps.Margins.Bottom = CmToPoint(_BottomMarginBox);
			ps.Margins.Left = CmToPoint(_LeftMarginBox);
			ps.Margins.Right = CmToPoint(_RightMarginBox);
			option.NumericAwareSort = _NumericAwareSortBox.Checked;
			ps.PaperSize.PaperName = paperName;
			ps.PaperSize.Width = CmToPoint(_WidthBox);
			ps.PaperSize.Height = CmToPoint(_HeightBox);
			ps.HorizontalAlign = (HorizontalAlignment)_ImageHAlignBox.SelectedIndex;
			ps.VerticalAlign = (VerticalAlignment)_ImageVAlignBox.SelectedIndex;
			ps.ScaleContent = _ScalePdfPagesBox.Checked;
			option.SubFolder = _SubFoldersBeforeFilesBox.Checked ? MergerOptions.SubFolderPosition.BeforeFiles
				: _SubFolderWithFilesBox.Checked ? MergerOptions.SubFolderPosition.WithFiles
				: MergerOptions.SubFolderPosition.Exclude;

			option.UnifyPageOrientation = _UnifyOrientationBox.Checked;
			option.RotateVerticalPages = _SourceOrientationBox.SelectedIndex == 1;
			option.RotateAntiClockwise = _RotationBox.SelectedIndex == 1;
			option.IgnoreLeadingNumbers = _IgnoreLeadingNumbersBox.Checked;
			option.KeepBookmarks = _KeepSourcePdfBookmarkBox.Checked;
			option.RemoveOrphanBookmarks = _RemoveOrphanBoomarksBox.Checked;
			option.ExtraEmptyPageForOddPdf = _ExtraEmptyPageBox.Checked;

			option.RecompressWithJbig2 = _RecompressImageBox.Checked;
			option.FullCompression = _FullCompressionBox.Checked;
			option.DpiX = (int)_DpiXBox.Value;
			option.DpiY = (int)_DpiYBox.Value;
			option.Deduplicate = _DeduplicateBox.Checked;
		}

		float CmToPoint(NumericUpDown box) {
			return (float)box.Value * Constants.Units.CmToPoint;
		}

		void _PageSizeBox_SelectedIndexChanged(object sender, EventArgs e) {
			if (_PageSizeBox.SelectedIndex == -1) {
				return;
			}
			var p = _PageSizeBox.SelectedItem as PaperSize;
			if (p.Width > 0 && p.Height > 0) {
				_WidthBox.SetValue((decimal)p.Width / (decimal)100);
				_HeightBox.SetValue((decimal)p.Height / (decimal)100);
			}
			paperName = p.PaperName;
			switch (paperName) {
				case PaperSize.FixedWidthAutoHeight:
					_AutoRotateBox.Enabled =
					_HeightBox.Enabled =
					_ImageVAlignBox.Enabled =
					false;
					_ImageHAlignBox.Enabled =
					_PdfGroupBox.Enabled =
					_ImageGroupBox.Enabled =
					_WidthBox.Enabled = true;
					break;
				case PaperSize.AsPageSize:
					_AutoRotateBox.Enabled =
					_WidthBox.Enabled =
					_ImageHAlignBox.Enabled =
					_ImageVAlignBox.Enabled =
					_PdfGroupBox.Enabled =
					_ImageGroupBox.Enabled =
					_HeightBox.Enabled = false;
					break;
				default:
					_AutoRotateBox.Enabled =
					_WidthBox.Enabled =
					_HeightBox.Enabled =
					_ImageHAlignBox.Enabled =
					_ImageVAlignBox.Enabled =
					_PdfGroupBox.Enabled =
					_ImageGroupBox.Enabled =
					true;
					break;
			}
		}

		void MarginBox_ValueChanged(object sender, EventArgs e) {
			if (!_SyncMarginsBox.Checked || _uiLockDown) {
				return;
			}
			var c = sender as NumericUpDown;
			var d = c.Value;
			_TopMarginBox.Value = _BottomMarginBox.Value = _LeftMarginBox.Value = _RightMarginBox.Value = d;
		}

		void CheckBoxChanged(object sender, EventArgs e) {
			_IgnoreLeadingNumbersBox.Enabled = _AutoBookmarkTitleBox.Checked;
			_RemoveOrphanBoomarksBox.Enabled = _KeepSourcePdfBookmarkBox.Checked;
			_SourceOrientationBox.Enabled = _RotationBox.Enabled = _UnifyOrientationBox.Checked;
		}
	}
}