98 lines
3.8 KiB
C#
98 lines
3.8 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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using System.Diagnostics;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Threading.Tasks;
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using System.Windows;
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using System.Windows.Controls;
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using System.Windows.Forms;
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using System.Windows.Ink;
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using System.Windows.Input;
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using System.Windows.Media;
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using Ink_Canvas.Helpers;
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namespace Ink_Canvas
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{
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public partial class MainWindow : Window
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{
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private class PageListViewItem
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{
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public int Index { get; set; }
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public StrokeCollection Strokes { get; set; }
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}
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ObservableCollection<PageListViewItem> blackBoardLeftSidePageListViewObservableCollection = new ObservableCollection<PageListViewItem>();
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/// <summary>
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/// <para>刷新白板的缩略图页面列表。</para>
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/// </summary>
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private void RefreshBlackBoardLeftSidePageListView()
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{
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if (blackBoardLeftSidePageListViewObservableCollection.Count == WhiteboardTotalCount) {
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foreach (int index in Enumerable.Range(1, WhiteboardTotalCount))
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{
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var st = ApplyHistoriesToNewStrokeCollection(TimeMachineHistories[index]);
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st.Clip(new Rect(0, 0, (int)inkCanvas.ActualWidth, (int)inkCanvas.ActualHeight));
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var pitem = new PageListViewItem()
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{
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Index = index,
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Strokes = st,
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};
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blackBoardLeftSidePageListViewObservableCollection[index-1] = pitem;
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}
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} else {
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blackBoardLeftSidePageListViewObservableCollection.Clear();
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foreach (int index in Enumerable.Range(1, WhiteboardTotalCount)) {
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var st = ApplyHistoriesToNewStrokeCollection(TimeMachineHistories[index]);
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st.Clip(new Rect(0,0, (int)inkCanvas.ActualWidth, (int)inkCanvas.ActualHeight));
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var pitem = new PageListViewItem()
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{
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Index = index,
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Strokes = st,
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};
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blackBoardLeftSidePageListViewObservableCollection.Add(pitem);
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}
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}
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var _st = inkCanvas.Strokes.Clone();
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_st.Clip(new Rect(0, 0, (int)inkCanvas.ActualWidth, (int)inkCanvas.ActualHeight));
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var _pitem = new PageListViewItem()
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{
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Index = CurrentWhiteboardIndex,
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Strokes = _st,
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};
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blackBoardLeftSidePageListViewObservableCollection[CurrentWhiteboardIndex - 1] = _pitem;
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BlackBoardLeftSidePageListView.SelectedIndex = CurrentWhiteboardIndex -1;
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}
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public static void ScrollViewToVerticalTop(FrameworkElement element, ScrollViewer scrollViewer)
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{
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var scrollViewerOffset = scrollViewer.VerticalOffset;
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var point = new Point(0, scrollViewerOffset);
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var tarPos = element.TransformToVisual(scrollViewer).Transform(point);
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scrollViewer.ScrollToVerticalOffset(tarPos.Y);
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}
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private void BlackBoardLeftSidePageListView_OnMouseUp(object sender, MouseButtonEventArgs e) {
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AnimationsHelper.HideWithSlideAndFade(BoardBorderLeftPageListView);
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var item = BlackBoardLeftSidePageListView.SelectedItem;
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var index = BlackBoardLeftSidePageListView.SelectedIndex;
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if (item != null)
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{
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SaveStrokes();
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ClearStrokes(true);
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CurrentWhiteboardIndex= index+1;
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RestoreStrokes();
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UpdateIndexInfoDisplay();
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BlackBoardLeftSidePageListView.SelectedIndex = index;
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}
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}
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}
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}
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