1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980818283848586878889909192939495969798991001011021031041051061071081091101111121131141151161171181191201211221231241251261271281291301311321331341351361371381391401411421431441451461471481491501511521531541551561571581591601611621631641651661671681691701711721731741751761771781791801811821831841851861871881891901911921931941951961971981992002012022032042052062072082092102112122132142152162172182192202212222232242252262272282292302312322332342352362372382392402412422432442452462472482492502512522532542552562572582592602612622632642652662672682692702712722732742752762772782792802812822832842852862872882892902912922932942952962972982993003013023033043053063073083093103113123133143153163173183193203213223233243253263273283293303313323333343353363373383393403413423433443453463473483493503513523533543553563573583593603613623633643653663673683693703713723733743753763773783793803813823833843853863873883893903913923933943953963973983994004014024034044054064074084094104114124134144154164174184194204214224234244254264274284294304314324334344354364374384394404414424434444454464474484494504514524534544554564574584594604614624634644654664674684694704714724734744754764774784794804814824834844854864874884894904914924934944954964974984995005015025035045055065075085095105115125135145155165175185195205215225235245255265275285295305315325335345355365375385395405415425435445455465475485495505515525535545555565575585595605615625635645655665675685695705715725735745755765775785795805815825835845855865875885895905915925935945955965975985996006016026036046056066076086096106116126136146156166176186196206216226236246256266276286296306316326336346356366376386396406416426436446456466476486496506516526536546556566576586596606616626636646656666676686696706716726736746756766776786796806816826836846856866876886896906916926936946956966976986997007017027037047057067077087097107117127137147157167177187197207217227237247257267277287297307317327337347357367377387397407417427437447457467477487497507517527537547557567577587597607617627637647657667677687697707717727737747757767777787797807817827837847857867877887897907917927937947957967977987998008018028038048058068078088098108118128138148158168178188198208218228238248258268278288298308318328338348358368378388398408418428438448458468478488498508518528538548558568578588598608618628638648658668678688698708718728738748758768778788798808818828838848858868878888898908918928938948958968978988999009019029039049059069079089099109119129139149159169179189199209219229239249259269279289299309319329339349359369379389399409419429439449459469479489499509519529539549559569579589599609619629639649659669679689699709719729739749759769779789799809819829839849859869879889899909919929939949959969979989991000100110021003100410051006100710081009101010111012101310141015101610171018101910201021102210231024102510261027102810291030103110321033103410351036103710381039104010411042104310441045104610471048104910501051105210531054105510561057105810591060106110621063106410651066106710681069107010711072107310741075107610771078107910801081108210831084108510861087108810891090109110921093109410951096109710981099110011011102110311041105110611071108110911101111111211131114111511161117111811191120112111221123112411251126112711281129113011311132113311341135113611371138113911401141114211431144114511461147114811491150115111521153115411551156115711581159116011611162116311641165116611671168116911701171117211731174117511761177117811791180118111821183118411851186118711881189119011911192119311941195119611971198119912001201120212031204120512061207120812091210121112121213121412151216121712181219122012211222122312241225122612271228122912301231123212331234123512361237123812391240124112421243124412451246124712481249125012511252125312541255125612571258125912601261126212631264126512661267126812691270127112721273127412751276127712781279128012811282128312841285128612871288128912901291129212931294129512961297129812991300130113021303130413051306130713081309131013111312131313141315131613171318131913201321132213231324132513261327132813291330133113321333133413351336133713381339134013411342134313441345134613471348134913501351135213531354135513561357135813591360136113621363136413651366136713681369137013711372137313741375137613771378137913801381138213831384138513861387138813891390139113921393139413951396139713981399140014011402140314041405140614071408140914101411141214131414141514161417141814191420142114221423142414251426142714281429143014311432143314341435143614371438143914401441144214431444144514461447144814491450145114521453145414551456145714581459146014611462146314641465146614671468146914701471147214731474147514761477147814791480148114821483148414851486148714881489149014911492149314941495149614971498149915001501150215031504150515061507150815091510151115121513151415151516151715181519152015211522152315241525152615271528152915301531153215331534153515361537153815391540154115421543154415451546154715481549155015511552155315541555155615571558155915601561156215631564156515661567156815691570157115721573157415751576157715781579158015811582158315841585158615871588158915901591159215931594159515961597159815991600160116021603160416051606160716081609161016111612161316141615161616171618161916201621162216231624162516261627162816291630163116321633163416351636163716381639164016411642164316441645164616471648164916501651165216531654165516561657165816591660166116621663166416651666166716681669167016711672167316741675167616771678167916801681168216831684168516861687168816891690169116921693169416951696169716981699170017011702170317041705170617071708170917101711171217131714171517161717171817191720172117221723172417251726172717281729173017311732173317341735173617371738173917401741174217431744174517461747174817491750175117521753175417551756175717581759176017611762176317641765176617671768176917701771177217731774177517761777177817791780178117821783178417851786178717881789179017911792179317941795179617971798179918001801180218031804180518061807180818091810181118121813181418151816181718181819182018211822182318241825182618271828182918301831183218331834183518361837183818391840184118421843184418451846184718481849185018511852185318541855185618571858185918601861186218631864186518661867186818691870187118721873187418751876187718781879188018811882188318841885188618871888188918901891189218931894189518961897189818991900190119021903190419051906190719081909191019111912191319141915191619171918191919201921192219231924192519261927192819291930193119321933193419351936193719381939194019411942194319441945194619471948194919501951195219531954195519561957195819591960196119621963196419651966196719681969197019711972197319741975197619771978197919801981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005200620072008200920102011201220132014201520162017201820192020202120222023202420252026202720282029203020312032203320342035203620372038203920402041204220432044204520462047204820492050205120522053205420552056205720582059206020612062206320642065206620672068206920702071207220732074207520762077207820792080208120822083208420852086208720882089209020912092209320942095209620972098209921002101210221032104210521062107210821092110211121122113211421152116211721182119212021212122212321242125212621272128212921302131213221332134213521362137213821392140214121422143214421452146214721482149215021512152215321542155215621572158215921602161216221632164216521662167216821692170217121722173217421752176217721782179218021812182218321842185218621872188218921902191219221932194219521962197219821992200220122022203220422052206220722082209221022112212221322142215221622172218221922202221222222232224222522262227222822292230223122322233223422352236223722382239224022412242224322442245224622472248224922502251225222532254225522562257225822592260226122622263226422652266226722682269227022712272227322742275227622772278227922802281228222832284228522862287228822892290229122922293229422952296229722982299230023012302230323042305230623072308230923102311231223132314231523162317231823192320232123222323232423252326232723282329233023312332233323342335233623372338233923402341234223432344234523462347234823492350235123522353235423552356235723582359236023612362236323642365236623672368236923702371237223732374237523762377237823792380 |
- using ComPDFKit.PDFDocument;
- using ComPDFKit.PDFPage;
- using ComPDFKit.Viewer.Helper;
- using Compdfkit_Tools.PDFControlUI;
- using ComPDFKitViewer;
- using Microsoft.Win32;
- using System;
- using System.Collections.Generic;
- using System.Collections.ObjectModel;
- using System.Diagnostics;
- using System.IO;
- using System.Threading.Tasks;
- using System.Windows;
- using System.Windows.Controls;
- using System.Windows.Controls.Primitives;
- using System.Windows.Input;
- using System.Windows.Media;
- using System.Windows.Media.Animation;
- using System.Windows.Media.Imaging;
- using System.Windows.Shapes;
- using System.Windows.Threading;
- using WpfToolkit.Controls;
- using static Compdfkit_Tools.Helper.CommonHelper;
- using Winform = System.Windows.Forms;
- namespace Compdfkit_Tools.PDFControl
- {
- public partial class CPDFPageEditControl : UserControl
- {
- #region Helper class Helper methods
- internal static class Utils
- {
- public static T FindVisualParent<T>(DependencyObject obj) where T : class
- {
- while (obj != null)
- {
- if (obj is T)
- return obj as T;
- obj = VisualTreeHelper.GetParent(obj);
- }
- return null;
- }
- public static childItem FindVisualChild<childItem>(DependencyObject obj)
- where childItem : DependencyObject
- {
- for (int i = 0; i < VisualTreeHelper.GetChildrenCount(obj); i++)
- {
- DependencyObject child = VisualTreeHelper.GetChild(obj, i);
- if (child != null && child is childItem)
- return (childItem)child;
- else
- {
- childItem childOfChild = FindVisualChild<childItem>(child);
- if (childOfChild != null)
- return childOfChild;
- }
- }
- return null;
- }
- }
- #endregion
- private ObservableCollection<ListBoxItem> bindPageList = new ObservableCollection<ListBoxItem>();
- public bool isThumbInitialized = false;
- private const int THUMBNAIL_WIDTH = 150;
- private const int THUMBNAIL_HEIGHT = 150;
- public PDFViewControl viewControl;
- private List<int> pageThumbnailsToRequest = new List<int>();
- private List<int> visiblePageIndexes = new List<int>();
- private string dragingEnterPath;
- private ScrollEventType scrollType = ScrollEventType.EndScroll;
- private Point startPostion = new Point();
- private bool isFirstLoad = true;
- public bool isHided = false;
- private int zoomLevel = 2;
- private bool isZooming = false;
- private int[] thumbnailSize = { 100, 150, 200, 300, 500 };
- private bool startChoose = false; //Whether to start multiple selections (box selection)
- private int speed = 0; //Scrolling speed
- //The position in the item when the mouse clicks
- private double item_x;
- private double item_y;
- private int InsertIndex = -1;
- //Drag the Item
- private ListBoxItem tempItem;
- //Whether the mouse stays on the front half of the item
- //When the first half is displayed, the index obtained is the actual index value
- //When the second half is displayed, the obtained index needs add 1
- //private bool isFrontHalf = false;
- private bool isDraging = false;
- //Whether the file is being dragged in from the outside
- private bool isDragingEnter = false;
- //It is used to assist in the implementation of multi-select and then single-select problems
- private bool iskeyDown = false;
- //When the order or total number of pages changes
- public event RoutedEventHandler PageMoved;
- //When zooming
- public event RoutedEventHandler ChangedZoomFactor;
- private bool isFirstScrollChange = true;
- private bool isFirstSizeChange = true;
- public string SelectedItemsRange
- {
- get { return GetPageParam(); }
- }
- public int SelectedIndex
- {
- get { return PageEditListBox.SelectedIndex; }
- }
- public event EventHandler ExitPageEdit;
- private delegate void OnThumbnailGeneratedEventHandler(int pageIndex, byte[] thumb, int w, int h);
- private OnThumbnailGeneratedEventHandler OnThumbnailGenerated;
- public CPDFPageEditControl()
- {
- InitializeComponent();
- }
- public void PageEdit(string PageEditString)
- {
- var list = GetListFromSelectedItems();
- CPDFDocument pdfDoc = GetPDFDocument();
- if (PageEditString == "Insert" && pdfDoc!=null)
- {
- CPDFPageInsertWindow pageInsertWindow = new CPDFPageInsertWindow();
- Window parentWindow = Window.GetWindow(this);
- pageInsertWindow.InitPageInsertWindow(SelectedIndex, pdfDoc.PageCount);
- pageInsertWindow.DialogClosed -= PageInsertWindow_DialogClosed;
- pageInsertWindow.DialogClosed += PageInsertWindow_DialogClosed;
- pageInsertWindow.Owner = parentWindow;
- pageInsertWindow.ShowDialog();
- }
- else if (PageEditString == "Replace")
- {
- DoReplace();
- }
- else if (PageEditString == "Extract" && pdfDoc!=null)
- {
- CPDFPageExtractWindow pageExtractWindow = new CPDFPageExtractWindow();
- Window parentWindow = Window.GetWindow(this);
- pageExtractWindow.InitPageExtractWindow(SelectedItemsRange, pdfDoc.PageCount);
- pageExtractWindow.DialogClosed -= PageExtractWindow_DialogClosed;
- pageExtractWindow.DialogClosed += PageExtractWindow_DialogClosed;
- pageExtractWindow.Owner = parentWindow;
- pageExtractWindow.ShowDialog();
- }
- else if (PageEditString == "Copy")
- {
- DoCopy();
- DoPaste();
- ViewportHelper.CopyDoc = null;
- }
- else if (PageEditString == "Rotate")
- {
- DoRotate(90);
- }
- else if (PageEditString == "Delete")
- {
- DoDelete(list, true);
- }
- }
- private void PageInsertWindow_DialogClosed(object sender, InsertDialogCloseEventArgs e)
- {
- InsertEventClass result = e.DialogResult;
- if (result != null)
- {
- DoInsert(result);
- }
- else
- {
- }
- }
- private void PageExtractWindow_DialogClosed(object sender, ExtractDialogCloseEventArgs e)
- {
- ExtractEventClass result = e.DialogResult;
- if (result != null)
- {
- DoExtract(result);
- }
- else
- {
- }
- }
- private void Timer_Tick(object sender, EventArgs e)
- {
- AlertBorder.Visibility = Visibility.Collapsed;
-
- DispatcherTimer timer = (DispatcherTimer)sender;
- timer.Stop();
- timer.Tick -= Timer_Tick;
- }
- #region Shortcut key binding
- private void CommandBinding_Executed_LeftRotate(object sender, ExecutedRoutedEventArgs e)
- {
- DoRotate(-90);
- }
- private void CommandBinding_Executed_RightRotate(object sender, ExecutedRoutedEventArgs e)
- {
- DoRotate(90);
- }
- private void CommandBinding_Executed_Delete(object sender, ExecutedRoutedEventArgs e)
- {
- var list = GetListFromSelectedItems();
- DoDelete(list, true);
- }
- private void CommandBinding_Executed_Copy(object sender, ExecutedRoutedEventArgs e)
- {
- DoCopy();
- DoPaste();
- ViewportHelper.CopyDoc = null;
- }
- #endregion
- #region Event
- private void PdfViewer_InfoChanged(object sender, KeyValuePair<string, object> e)
- {
- if (e.Key == "RenderNum" && this.Visibility == Visibility.Visible && !isHided)
- {
- UpdateSelectedIndex();
- }
- }
- private void _pdfviewer_OnThumbnailGenerated(int pageIndex, byte[] thumb, int w, int h)
- {
- try
- {
- if (PageEditListBox.Items.IsEmpty)
- {
- return;
- }
- ScrollViewer sv = GetScrollHost(PageEditListBox);
-
- ListBoxItem listboxitem = PageEditListBox.ItemContainerGenerator.ContainerFromIndex(pageIndex) as ListBoxItem;
- if (ViewportHelper.IsInViewport(sv, listboxitem))
- {
- Debug.WriteLine("Got thumbnail for page {0}. It is visible, so adding thumb", pageIndex);
- PixelFormat fmt = PixelFormats.Bgra32;
- BitmapSource bps = BitmapSource.Create(w, h, 96.0, 96.0, fmt, null, thumb, (w * fmt.BitsPerPixel + 7) / 8);
- Image image = GetImageElement(PageEditListBox.Items[pageIndex] as ListBoxItem);
- image.Source = bps;
- }
- else
- {
- Debug.WriteLine("Got thumbnail for page {0}. It is NOT visible, so ignoring thumb", pageIndex);
- }
- }
- catch (Exception ex)
- {
- Debug.WriteLine(ex.ToString());
- }
- }
- private void UserControl_Loaded(object sender, RoutedEventArgs e)
- {
- PageEditListBox.Focus();
- CPDFViewer pdfViewer = GetPDFViewer();
- if(pdfViewer!=null && pdfViewer.CurrentRenderFrame!=null)
- {
- int pageIndex=pdfViewer.CurrentRenderFrame.PageIndex;
- if (PageEditListBox.HasItems && pageIndex < PageEditListBox.Items.Count)
- {
- PageEditListBox.ScrollIntoView(PageEditListBox.Items[pageIndex < 0 ? 0 : pageIndex]);
- PageEditListBox.SelectedIndex = pageIndex;
- }
- }
- }
- private void UserControl_Unloaded(object sender, RoutedEventArgs e)
- {
- ReleaseMouseCapture();
- }
- private void UserControl_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
- {
- if (Keyboard.IsKeyDown(Key.LeftCtrl))
- {
- var item = PageEditListBox.Items[0] as ListBoxItem;
- int oldZoomLevel = zoomLevel;
- if (e.Delta < 0)
- {
- if (zoomLevel > 0)
- zoomLevel--;
- }
- else
- {
- if (zoomLevel < thumbnailSize.Length - 1 && thumbnailSize[zoomLevel + 1] <= PageEditListBox.ActualWidth - 2 * item.Margin.Left)
- zoomLevel++;
- }
- if (zoomLevel != oldZoomLevel)
- {
- isZooming = true;
- RefreshThumbnail(true);
- isZooming = false;
- }
- ItemsInViewHitTest();
- return;
- }
- if (startChoose)
- {
- ScrollViewer s = GetScrollHost(PageEditListBox);
- var vs = s.VerticalOffset;
- s.ScrollToVerticalOffset(vs - e.Delta);
- return;
- }
- }
- public void ZoomOut()
- {
- if (zoomLevel > 0)
- {
- zoomLevel--;
- isZooming = true;
- PopulateThumbnailList();
- CPDFViewer pdfViewer= GetPDFViewer();
- if(pdfViewer!=null && pdfViewer.CurrentRenderFrame!=null)
- {
- int pageIndex=pdfViewer.CurrentRenderFrame.PageIndex;
- if (pageIndex < PageEditListBox.Items.Count)
- {
- PageEditListBox.ScrollIntoView(PageEditListBox.Items[pageIndex]);
- }
- PageEditListBox.SelectedIndex = pageIndex;
- }
-
- ItemsInViewHitTest();
- isZooming = false;
- }
- }
- public void ZoomIn()
- {
- if (zoomLevel < thumbnailSize.Length - 1)
- {
- zoomLevel++;
- isZooming = true;
- PopulateThumbnailList();
- CPDFViewer pdfViewer = GetPDFViewer();
- if (pdfViewer != null && pdfViewer.CurrentRenderFrame != null)
- {
- int pageIndex = pdfViewer.CurrentRenderFrame.PageIndex;
- if (pageIndex < PageEditListBox.Items.Count)
- {
- PageEditListBox.ScrollIntoView(PageEditListBox.Items[pageIndex]);
- }
- PageEditListBox.SelectedIndex = pageIndex;
- }
-
- ItemsInViewHitTest();
- isZooming = false;
- }
- }
- public int CanZoomOutOrIn()
- {
- if (zoomLevel <= 0)
- return 0;
- else if (zoomLevel > 0 && zoomLevel < thumbnailSize.Length - 1)
- return 1;
- else
- return 2;
- }
- private void TryChangedZoomFactor()
- {
- try
- {
- if (ChangedZoomFactor != null)
- ChangedZoomFactor.Invoke(null, null);
- }
- catch
- {
- }
- }
- public void RefreshThumbnail(bool isZooming = false)
- {
- try
- {
- if (viewControl == null) return;
- var items = GetListFromSelectedItems();
- PopulateThumbnailList();
- CPDFViewer pdfViewer = GetPDFViewer();
- int pageIndex = -1;
- if(pdfViewer!=null && pdfViewer.CurrentRenderFrame != null)
- {
- pageIndex=pdfViewer.CurrentRenderFrame.PageIndex;
- }
- if (pageIndex >= PageEditListBox.Items.Count)
- {
- PageEditListBox.ScrollIntoView(PageEditListBox.Items[PageEditListBox.Items.Count - 1]);
- }
- else
- {
- PageEditListBox.ScrollIntoView(PageEditListBox.Items[pageIndex]);
- }
-
- if (!isZooming)
- {
- PageEditListBox.SelectedIndex = pageIndex;
- }
- else
- {
- PageEditListBox.SelectedItems.Clear();
- for (int i = 0; i < items.Count; i++)
- {
- int index = int.Parse(items[i].Tag.ToString());
- if (index < PageEditListBox.Items.Count)
- PageEditListBox.SelectedItems.Add(PageEditListBox.Items[index]);
- }
- }
- ItemsInViewHitTest();
- RefreshBookMarkList();
- }
- catch { }
- }
- private void PageEditListBox_ScrollChanged(object sender, ScrollChangedEventArgs e)
- {
- ItemsInViewHitTest();
- if (startChoose)
- {
- DoSelectItems();
- }
- if (isFirstScrollChange)
- {
- isFirstScrollChange = false;
- TryChangedZoomFactor();
- return;
- }
- }
- private void DoSelectItems()
- {
- var s = GetScrollHost(PageEditListBox);
- Point start = new Point();
- start = new Point(startPostion.X, startPostion.Y - s.VerticalOffset);
- var rec = new Rect(start, Mouse.GetPosition(PageEditListBox));
- ChooseRect.Margin = new Thickness(rec.Left, rec.Top, 0, 0);
- ChooseRect.Width = rec.Width;
- ChooseRect.Height = rec.Height;
- ChooseRect.Visibility = Visibility.Visible;
- for (int i = 0; i < PageEditListBox.Items.Count; i++)
- {
- var _item = PageEditListBox.Items[i] as ListBoxItem;
- var parent = Utils.FindVisualParent<VirtualizingWrapPanel>(_item);
- if (parent == null)
- continue;
- var v = VisualTreeHelper.GetOffset(_item);
- if (rec.IntersectsWith(new Rect(v.X, v.Y, _item.ActualWidth, _item.ActualHeight)))
- {
- PageEditListBox.SelectedItems.Add(_item);
- }
- else
- {
- PageEditListBox.SelectedItems.Remove(_item);
- }
- }
- return;
- }
- private void PageEditListBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
- {
- e.Handled = true;
- }
- private void PageEditListBox_Scroll(object sender, System.Windows.Controls.Primitives.ScrollEventArgs e)
- {
- scrollType = e.ScrollEventType;
- if (scrollType != ScrollEventType.EndScroll || isZooming)
- return;
- ItemsInViewHitTest();
- }
- private void PageEditListBox_KeyUp(object sender, KeyEventArgs e)
- {
- if (e.Key == Key.LeftShift || e.Key == Key.LeftCtrl)
- {
- iskeyDown = true;
- return;
- }
- }
- private void PageEditListBox_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
- {
- iskeyDown = true;
- var pos = e.GetPosition(PageEditListBox);
- HitTestResult result = VisualTreeHelper.HitTest(PageEditListBox, pos);
- if (result == null)
- {
- return;
- }
- var listBoxItem = Utils.FindVisualParent<ListBoxItem>(result.VisualHit);
- var scroller = Utils.FindVisualParent<ScrollBar>(result.VisualHit);
- if (listBoxItem == null)
- {
- if (scroller != null)
- {
- startChoose = false;
- return;
- }
- startChoose = true;
- PageEditListBox.SelectedItems.Clear();
- startPostion = e.GetPosition(PageEditListBox);
- startPostion = new Point(startPostion.X, startPostion.Y + GetWrapPanel(PageEditListBox).VerticalOffset);
- iskeyDown = false;
- Mouse.Capture(PageEditListBox);
- return;
- }
- startChoose = false;
- if (listBoxItem.IsSelected == true && !Keyboard.IsKeyDown(Key.LeftCtrl))
- {
- e.Handled = true;
- }
- }
- private void PageEditListBox_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
- {
- startChoose = false;
- ChooseRect.Visibility = Visibility.Collapsed;
- var pos = e.GetPosition(PageEditListBox);
- HitTestResult result = VisualTreeHelper.HitTest(PageEditListBox, pos);
- if (result == null)
- {
- return;
- }
- var listBoxItem = Utils.FindVisualParent<ListBoxItem>(result.VisualHit);
- if (listBoxItem == null)
- {
- return;
- }
- if (iskeyDown && !Keyboard.IsKeyDown(Key.LeftCtrl) && !Keyboard.IsKeyDown(Key.LeftShift))
- {
- PageEditListBox.SelectedItems.Clear();
- PageEditListBox.SelectedItem = listBoxItem;
- listBoxItem.IsSelected = true;
- return;
- }
- }
- private void PageEditListBox_Drop(object sender, DragEventArgs e)
- {
- if (!isDraging)
- {
- MidLane.Visibility = Visibility.Collapsed;
- return;
- }
- if (isDragingEnter)
- {
- CPDFDocument dragDoc = CPDFDocument.InitWithFilePath(dragingEnterPath);
- CPDFDocument pdfDoc = GetPDFDocument();
- CPDFViewer pdfViewer=GetPDFViewer();
- if (dragingEnterPath.Substring(dragingEnterPath.LastIndexOf(".")).ToLower() == ".pdf")
- {
- if (dragDoc != null && pdfDoc!=null)
- {
- int index = InsertIndex == -1 ? 0 : InsertIndex;
- pdfDoc.ImportPagesAtIndex(dragDoc, "1-" + dragDoc.PageCount, index);
- PopulateThumbnailList();
- ItemsInViewHitTest();
- pdfViewer?.UndoManager.ClearHistory();
- pdfViewer?.UpdateVirtualNodes();
- PageEditListBox.ScrollIntoView(PageEditListBox.SelectedItem as ListBoxItem);
- PageMoved?.Invoke(this, new RoutedEventArgs());
- dragDoc.Release();
- }
- else
- {
- }
- }
- else if (!string.IsNullOrEmpty(dragingEnterPath))
- {
- }
- MidLane.Visibility = Visibility.Collapsed;
- isDragingEnter = false;
- dragingEnterPath = null;
- return;
- }
- var pos = e.GetPosition(PageEditListBox);
- var result = VisualTreeHelper.HitTest(PageEditListBox, pos);
- if (result == null)
- {
- MidLane.Visibility = Visibility.Collapsed;
- isDraging = false;
- return;
- }
- var sourcePerson = e.Data.GetData(typeof(StackPanel)) as StackPanel;
- if (sourcePerson == null)
- {
- MidLane.Visibility = Visibility.Collapsed;
- isDraging = false;
- return;
- }
- int targetindex = 0;
- if (InsertIndex != -1)
- {
- targetindex = InsertIndex;
- }
- else
- {
- var listBoxItem = Utils.FindVisualParent<ListBoxItem>(result.VisualHit);
- if (listBoxItem == null)
- {
- MidLane.Visibility = Visibility.Collapsed;
- isDraging = false;
- return;
- }
- var targetPerson = listBoxItem;
- targetPerson.Opacity = 1;
- sourcePerson.Opacity = 1;
- if (ReferenceEquals(targetPerson, sourcePerson))
- {
- MidLane.Visibility = Visibility.Collapsed;
- isDraging = false;
- return;
- }
- targetindex = PageEditListBox.Items.IndexOf(targetPerson);
- }
- List<ListBoxItem> list = new List<ListBoxItem>();
- List<int> sourceindex = new List<int>();
- List<int> pages = new List<int>();
- for (int i = 0; i < PageEditListBox.SelectedItems.Count; i++)
- {
- var pageindex = PageEditListBox.Items.IndexOf(PageEditListBox.SelectedItems[i] as ListBoxItem);
- pages.Add(pageindex);
- }
- pages.Sort();
- if (pages.Count <= 0)
- {
- MidLane.Visibility = Visibility.Collapsed;
- isDraging = false;
- return;
- }
- if (targetindex <= pages[0])
- {
- sourceindex.Add(-1);
- list = new List<ListBoxItem>();
- for (int i = 0; i < pages.Count; i++)
- {
- list.Add(PageEditListBox.Items[pages[i]] as ListBoxItem);
- sourceindex.Add(pages[i]);
- DragToSort(pages[i], targetindex + i);
- }
- }
- else if (targetindex > pages[pages.Count - 1])
- {
- sourceindex.Add(1);
- list = new List<ListBoxItem>();
- for (int i = 0; i < pages.Count; i++)
- {
- list.Add(PageEditListBox.Items[pages[pages.Count - 1 - i]] as ListBoxItem);
- sourceindex.Add(pages[pages.Count - 1 - i]);
- DragToSort(pages[pages.Count - 1 - i], targetindex - 1 - i);
- }
- }
- else
- {
- int i, j, k;
- for (k = 0; k < pages.Count - 1; k++)
- {
- if (pages[k] < targetindex && pages[k + 1] >= targetindex)
- break;
- }
- sourceindex.Add(0);
- list = new List<ListBoxItem>();
- for (i = 0; i <= k; i++)
- {
- list.Add(PageEditListBox.Items[pages[k - i]] as ListBoxItem);
- sourceindex.Add(pages[k - i]);
- DragToSort(pages[k - i], targetindex - 1 - i);
- }
- for (j = i; j < pages.Count; j++)
- {
- list.Add(PageEditListBox.Items[pages[j]] as ListBoxItem);
- sourceindex.Add(pages[j]);
- DragToSort(pages[j], targetindex);
- targetindex++;
- }
- sourceindex.Add(k);
- }
- isDraging = false;
- }
- private void MidLane_Drop(object sender, DragEventArgs e)
- {
- MidLane.Visibility = Visibility.Collapsed;
- PageEditListBox_Drop(sender, e);
- }
- private void PageEditListBox_PreviewMouseMove(object sender, MouseEventArgs e)
- {
- try
- {
- if (e.LeftButton == MouseButtonState.Pressed)
- {
- iskeyDown = false;
- if (startChoose)
- {
- var position = e.GetPosition(PageEditListBox);
- if (position.X < 5 || position.X > PageEditListBox.ActualWidth - 5 || position.Y < 5 || position.Y > PageEditListBox.ActualHeight - 5)
- {
- startChoose = false;
- ChooseRect.Visibility = Visibility.Collapsed;
- Mouse.Capture(null);
- return;
- }
- DoSelectItems();
- return;
- }
- var pos = e.GetPosition(PageEditListBox);
- if (pos.Y < 0 || pos.Y > PageEditListBox.ActualHeight)
- {
- MidLane.Visibility = Visibility.Collapsed;
- return;
- }
- HitTestResult result = VisualTreeHelper.HitTest(PageEditListBox, pos);
- if (result == null)
- {
- return;
- }
- var listBoxItem = Utils.FindVisualParent<ListBoxItem>(result.VisualHit);
- if (listBoxItem == null)
- {
- return;
- }
- isDragingEnter = false;
- tempItem = listBoxItem;
- var panel = GetPanel(tempItem);
- var item_pos = e.GetPosition(panel);
- if (item_pos != null)
- {
- item_x = item_pos.X;
- item_y = item_pos.Y;
- }
- var scroll = GetScrollHost(PageEditListBox);
- DataObject dataObj = new DataObject(listBoxItem.Content as StackPanel);
- DragDrop.DoDragDrop(PageEditListBox, dataObj, DragDropEffects.Move);
- Mouse.Capture(PageEditListBox);
- return;
- }
- ChooseRect.Visibility = Visibility.Collapsed;
- startChoose = false;
- Mouse.Capture(null);
- }
- catch (Exception ex)
- {
- MidLane.Visibility = Visibility.Collapsed;
- }
- }
- private void Grid_DragOver(object sender, DragEventArgs e)
- {
- try
- {
- if (e.KeyStates == (DragDropKeyStates.ControlKey | DragDropKeyStates.LeftMouseButton) || e.KeyStates == (DragDropKeyStates.ShiftKey | DragDropKeyStates.LeftMouseButton | DragDropKeyStates.ControlKey))
- return;
-
- var pos = e.GetPosition(PageEditListBox);
- var result = VisualTreeHelper.HitTest(PageEditListBox, pos);
- if (result == null)
- {
- }
-
- var listBoxItem = Utils.FindVisualParent<ListBoxItem>(result.VisualHit);
- if (listBoxItem == null)
- {
- }
- #region 计算虚影位置
- //xaml层 要设置 虚影控件为左上
- double xPos, yPos;
- if (!isDragingEnter)
- {
- Image image = GetImageElement(tempItem);//获取item 图片
- Viewbox viewBox = (tempItem.Content as StackPanel).Children[0] as Viewbox;//获取item宽度
- ShadowPicture.Width = viewBox.ActualWidth;
- ShadowPicture.Height = viewBox.ActualHeight;
- ShadowPicture.Source = image.Source;
- xPos = e.GetPosition(PageEditListBox).X - item_x;
- yPos = e.GetPosition(PageEditListBox).Y - item_y;
- }
- else
- {
- var pic = ToBitmapSource(dragingEnterPath);
- ShadowPicture.Width = pic.Width;
- ShadowPicture.Height = pic.Height;
- ShadowPicture.Source = pic;
- xPos = e.GetPosition(PageEditListBox).X - pic.Width / 2;
- yPos = e.GetPosition(PageEditListBox).Y - pic.Height / 2;
- }
- ShadowPicture.Margin = new Thickness(xPos, yPos, 0, 0);
- #endregion
- #region 计算插入标记位置
- var scroll = GetScrollHost(PageEditListBox);
- if (listBoxItem != null)
- {
- //虚拟化影响到该值计算
- var p = VisualTreeHelper.GetOffset(listBoxItem);//计算控件在容器中的偏移(位置)
- MidLane.Visibility = Visibility.Visible;
- var panel = GetWrapPanel(PageEditListBox);
- var item = (PageEditListBox.Items[0] as ListBoxItem).DesiredSize.Width;
- int count = (int)(panel.ViewportWidth / item);
- var gap = (panel.ViewportWidth - count * item) / (count + 1) * 1.0;
- MidLane.X2 = MidLane.X1 = p.X + gap / 2 + listBoxItem.DesiredSize.Width;
- if (pos.X < p.X + gap / 2 + listBoxItem.ActualWidth / 2)
- {
- MidLane.X2 = MidLane.X1 = p.X - gap / 2;
- InsertIndex = PageEditListBox.Items.IndexOf(listBoxItem);
- }
- else
- {
- InsertIndex = PageEditListBox.Items.IndexOf(listBoxItem) + 1;
- }
- //MidLane.Y1 = p.Y - scroll.VerticalOffset;//向下滑动后要减去滑动值
- MidLane.Y1 = p.Y;
- if (MidLane.Y1 < 0)//避免超出上边界
- MidLane.Y1 = 0;
- //MidLane.Y2 = p.Y + listBoxItem.ActualHeight - scroll.VerticalOffset;//仿智能滚动后可能会导致 垂直滚动偏量不准确
- MidLane.Y2 = p.Y + listBoxItem.ActualHeight;
- if (MidLane.Y2 < 0)
- {
- MidLane.Y2 = 0;
- }
- }
- #endregion
-
- if (pos.Y <= 30 || pos.Y >= PageEditListBox.ActualHeight - 10)
- {
- MidLane.Visibility = Visibility.Collapsed;
- }
- if (pos.X <= 40 || pos.X >= scroll.ViewportWidth - 50)
- {
- MidLane.Visibility = Visibility.Collapsed;
- }
- #region 靠近上下边界时,自动滚动,离边界越近,滚动速度越快
- speed = 0;
- if (pos.Y >= PageEditListBox.ActualHeight - 30)
- {
- speed = 30 - (int)(PageEditListBox.ActualHeight - pos.Y);
- }
- else if (pos.Y <= 30)
- {
- speed = (int)(pos.Y - 30);
- }
- var v = scroll.VerticalOffset;
- scroll.ScrollToVerticalOffset(v + speed);
- #endregion
- }
- catch (Exception ex)
- {
- }
- }
- private void ShadowPicture_Drop(object sender, DragEventArgs e)
- {
- this.PageEditListBox_Drop(sender, e);
- }
-
- private void ListBoxItem_DragLeave(object sender, DragEventArgs e)
- {
- isDraging = true;
- }
- public void Delete_Click(object sender, RoutedEventArgs e)
- {
- if (viewControl == null)
- {
- return;
- }
-
- var list = GetListFromSelectedItems();
- DoDelete(list, true);
- }
-
- public void Rotate_Click(object sender, RoutedEventArgs e)
- {
- var item = sender as MenuItem;
- double step = 90;
- if (item.Name == "LeftRotate")
- {
- step = -90;
- }
- else
- {
- step = 90;
- }
- DoRotate(step);
- PageEditListBox.Focus();
- }
- private void ListBoxItem_PreviewMouseDoubleClick(object sender, MouseButtonEventArgs e)
- {
- e.GetPosition(PageEditListBox);
- var pos = e.GetPosition(PageEditListBox);
- HitTestResult result = VisualTreeHelper.HitTest(PageEditListBox, pos);
- if (result == null)
- {
- return;
- }
- var listBoxItem = Utils.FindVisualParent<ListBoxItem>(result.VisualHit);
- if (listBoxItem != null)
- {
- CPDFViewer pdfViewer=GetPDFViewer();
- pdfViewer?.GoToPage((int)listBoxItem.Tag,new Point(0,0));
- }
- ExitPageEdit?.Invoke(this, new EventArgs());
- }
- public void Copy_Click(object sender, RoutedEventArgs e)
- {
- DoCopy();
- DoPaste();
- ViewportHelper.CopyDoc = null;
- }
- private void PageEditListBox_SizeChanged(object sender, SizeChangedEventArgs e)
- {
- PageEditListBox.ScrollIntoView(PageEditListBox.SelectedItem);
- }
- private void PageEditor_IsVisibleChanged(object sender, DependencyPropertyChangedEventArgs e)
- {
- if (viewControl == null)
- {
- return;
- }
-
- if (isFirstLoad)
- {
- isFirstLoad = false;
- return;
- }
- CPDFViewer pdfViewer= GetPDFViewer();
- if(pdfViewer!=null && pdfViewer.CurrentRenderFrame!=null)
- {
- int pageIndex=pdfViewer.CurrentRenderFrame.PageIndex;
- if ((bool)e.NewValue == true && viewControl != null && pageIndex >= 0)
- {
- RefreshThumbnail();
- }
- if (pageIndex >= PageEditListBox.Items.Count || PageEditListBox.Items.Count == 0)
- {
- return;
- }
- ListBoxItem item = PageEditListBox.Items[pageIndex == -1 ? 0 : pageIndex] as ListBoxItem;
- PageEditListBox.ScrollIntoView(PageEditListBox.SelectedItem);
- PageEditListBox.SelectedItem = item;
- }
- }
- private async void ListBoxItem_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
- {
- if (!Keyboard.IsKeyDown(Key.LeftCtrl) && !Keyboard.IsKeyDown(Key.LeftShift))
- {
- var item = sender as ListBoxItem;
- Image img = GetImageElement(item);
- int itemindex = PageEditListBox.Items.IndexOf(item);
- if (img.Source == null)
- {
- await GetThumbnail(itemindex, (int)img.Width, (int)img.Height);
- }
- CPDFViewer pdfViewer = GetPDFViewer();
- pdfViewer?.GoToPage(itemindex, new Point(0, 0));
- }
- }
- private void PageGrid_PreviewDragEnter(object sender, DragEventArgs e)
- {
- var file = (System.Array)e.Data.GetData(DataFormats.FileDrop);
- if (file == null || file.Length > 1)
- { return; }
- foreach (var f in file)
- {
- dragingEnterPath = f.ToString();
- if (dragingEnterPath != null)
- {
- isDragingEnter = true;
- }
- }
- }
-
- private void ContextMenu_Loaded(object sender, RoutedEventArgs e)
- {
- if (ViewportHelper.CopyDoc == null)
- {
- var s = sender as ContextMenu;
- foreach (var item in s.Items)
- {
- if ((item as MenuItem).Name == "Paste")
- {
- (item as MenuItem).IsEnabled = false;
- }
- }
- }
- else
- {
- var s = sender as ContextMenu;
- foreach (var item in s.Items)
- {
- if ((item as MenuItem).Name == "Paste")
- {
- (item as MenuItem).IsEnabled = true;
- }
- }
- }
- if (PageEditListBox.SelectedItems.Count < 2)
- {
- var s = sender as ContextMenu;
- foreach (var item in s.Items)
- {
- if ((item as MenuItem).Name == "Exchange")
- {
- (item as MenuItem).IsEnabled = false;
- }
- }
- }
- else
- {
- var s = sender as ContextMenu;
- foreach (var item in s.Items)
- {
- if ((item as MenuItem).Name == "Exchange")
- {
- (item as MenuItem).IsEnabled = true;
- }
- }
- }
- }
- private void UserControl_KeyDown(object sender, KeyEventArgs e)
- {
- if ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control && e.Key == Key.A)
- {
- if (PageEditListBox.SelectedItems.Count == PageEditListBox.Items.Count)
- {
- PageEditListBox.UnselectAll();
- e.Handled = true;
- }
- }
- }
- #endregion
- #region Method
- public void LoadThumbnails(PDFViewControl viewer)
- {
- if (viewer == null)
- {
- return;
- }
- if (viewControl != null && viewer != viewControl)
- {
- viewControl = viewer;
- this.PopulateThumbnailList();
- OnThumbnailGenerated -= _pdfviewer_OnThumbnailGenerated;
- OnThumbnailGenerated += _pdfviewer_OnThumbnailGenerated;
- }
- viewControl = viewer;
- if (!isThumbInitialized)
- {
- this.PopulateThumbnailList();
- isThumbInitialized = true;
- OnThumbnailGenerated -= _pdfviewer_OnThumbnailGenerated;
- OnThumbnailGenerated += _pdfviewer_OnThumbnailGenerated;
- }
- CPDFViewer pdfviewer = GetPDFViewer();
- if(pdfviewer != null && pdfviewer.CurrentRenderFrame!=null)
- {
- int pageIndex = pdfviewer.CurrentRenderFrame.PageIndex;
- if (pageIndex >= 0 && PageEditListBox.Items.Count > pageIndex)
- {
- PageEditListBox.ScrollIntoView(PageEditListBox.Items[pageIndex]);
- (PageEditListBox.Items[pageIndex] as ListBoxItem).IsSelected = true;
- PageEditListBox.SelectedIndex = pageIndex;
- }
- }
-
- RefreshBookMarkList();
- }
- public void PopulateThumbnailList()
- {
- visiblePageIndexes.Clear();
- bindPageList.Clear();
- // GC.Collect();
- CPDFDocument pdfDoc= GetPDFDocument();
- if(pdfDoc == null || pdfDoc.IsValid()==false)
- {
- return;
- }
- int thumbnailWidth = thumbnailSize[zoomLevel];
- for (int i = 0; i < pdfDoc.PageCount; i++)
- {
- Size pageSize = DataConversionForWPF.CSizeConversionForSize(pdfDoc.GetPageSize(i));
- if (pageSize.Height == 0 || pageSize.Width == 0)
- continue;
- int imageWidth = pageSize.Width > pageSize.Height ? thumbnailWidth * 2 : (int)(pageSize.Width / pageSize.Height * thumbnailWidth * 2);
- int imageHeight = pageSize.Height > pageSize.Width ? thumbnailWidth * 2 : (int)(pageSize.Height / pageSize.Width * thumbnailWidth * 2);
- Image img = new Image()
- {
- //Margin = new Thickness(0, 0, 5, 0),
- Width = imageWidth,
- Height = imageHeight,
- Stretch = Stretch.Uniform,
- };
- Grid grid = new Grid();
- grid.Children.Add(img);
- List<Point> points = new List<Point>()
- {
- new Point(16.75,1.25),
- new Point(3.25,1.25 ),
- new Point(3.25,19.4013878),
- new Point(10,14.902),
- new Point(16.75,19.4013878),
- };
- Polygon bookmark = new Polygon()
- {
- Points = new PointCollection(points),
- Fill = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FFBB00")),
- Margin = new Thickness(0, 16, 16, 0),
- VerticalAlignment = VerticalAlignment.Top,
- HorizontalAlignment = HorizontalAlignment.Right,
- Visibility = Visibility.Collapsed,
- };
- grid.Children.Add(bookmark);
- Border border = new Border()
- {
- BorderThickness = new Thickness(2),
- BorderBrush = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#A0A2AE")),
- Child = grid,
- };
- Viewbox viewBox = new Viewbox()
- {
- Margin = new Thickness(0, 8, 0, 0),
- Stretch = Stretch.Uniform,
- Width = thumbnailWidth,
- Height = thumbnailWidth,
- Child = border,
- };
- TextBlock text = new TextBlock()
- {
- HorizontalAlignment = HorizontalAlignment.Center,
- Text = (i + 1).ToString(),
- Foreground = Brushes.Black,
- Margin = new Thickness(0, 8, 0, 8),
- };
- StackPanel panel = new StackPanel();
- panel.Children.Add(viewBox);
- panel.Children.Add(text);
- ListBoxItem item = new ListBoxItem();
- item.Content = panel;
- item.Tag = i;
- item.Margin = new Thickness(6, 10, 6, 10);
- bindPageList.Add(item);
- }
- PageEditListBox.ItemsSource = bindPageList;
- }
-
- public ListBoxItem GetNewItem(int ItemIndex)
- {
- int thumbnailWidth = thumbnailSize[zoomLevel];
- CPDFDocument pdfDoc= GetPDFDocument();
- if(pdfDoc == null)
- {
- return new ListBoxItem();
- }
- Size pageSize = DataConversionForWPF.CSizeConversionForSize(pdfDoc.GetPageSize(ItemIndex));
- if (pageSize.Width == 0 || pageSize.Height == 0)
- {
- pageSize = new Size(228, 300);
- }
- int imageWidth = pageSize.Width > pageSize.Height ? thumbnailWidth * 2 : (int)(pageSize.Width / pageSize.Height * thumbnailWidth * 2);
- int imageHeight = pageSize.Height > pageSize.Width ? thumbnailWidth * 2 : (int)(pageSize.Height / pageSize.Width * thumbnailWidth * 2);
- Image img = new Image()
- {
- Width = imageWidth,
- Height = imageHeight,
- Stretch = Stretch.Uniform,
- };
- Grid grid = new Grid();
- grid.Children.Add(img);
- List<Point> points = new List<Point>()
- {
- new Point(16.75,1.25),
- new Point(3.25,1.25 ),
- new Point(3.25,19.4013878),
- new Point(10,14.902),
- new Point(16.75,19.4013878),
- };
- Polygon bookmark = new Polygon()
- {
- Points = new PointCollection(points),
- Fill = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#FFBB00")),
- Margin = new Thickness(0, 8, 8, 0),
- VerticalAlignment = VerticalAlignment.Top,
- HorizontalAlignment = HorizontalAlignment.Right,
- Visibility = Visibility.Collapsed,
- };
- grid.Children.Add(bookmark);
- Border border = new Border()
- {
- BorderThickness = new Thickness(2),
- BorderBrush = new SolidColorBrush((Color)ColorConverter.ConvertFromString("#A0A2AE")),
- Child = grid,
- };
- Viewbox viewBox = new Viewbox()
- {
- Margin = new Thickness(0, 8, 0, 0),
- Stretch = Stretch.Uniform,
- Width = thumbnailWidth,
- Height = thumbnailWidth,
- Child = border,
- };
- TextBlock text = new TextBlock()
- {
- HorizontalAlignment = HorizontalAlignment.Center,
- Text = (ItemIndex + 1).ToString(),
- Foreground = Brushes.Black,
- Margin = new Thickness(0, 8, 0, 8),
- };
- StackPanel panel = new StackPanel();
- panel.Children.Add(viewBox);
- panel.Children.Add(text);
- ListBoxItem item = new ListBoxItem();
- item.Content = panel;
- item.Tag = ItemIndex;
- item.Margin = new Thickness(6, 10, 6, 10);
- return item;
- }
-
- public void AddBlankPages(int pagecount, int insertindex)
- {
- for (int i = 0; i < pagecount; i++)
- {
- var item = GetNewItem(insertindex + i);
- bindPageList.Insert(insertindex + i, item);
- if (visiblePageIndexes.Contains(insertindex + i))
- visiblePageIndexes.Remove(insertindex + i);
- }
- PageEditListBox.UpdateLayout();
- }
-
- private async void RenderPage(int pageindex)
- {
- var range = GetRoughViewportRange(PageEditListBox, (PageEditListBox.Items[0] as ListBoxItem).DesiredSize, new Thickness(6, 10, 6, 10));
- if (pageindex < range.Item1 || pageindex > range.Item2)
- return;
- ListBoxItem item = PageEditListBox.Items[pageindex] as ListBoxItem;
- Image img = GetImageElement(item);
- await GetThumbnail(pageindex, (int)img.Width, (int)img.Height);
- }
- private async void ItemsInViewHitTest()
- {
- CPDFDocument pdfDoc= GetPDFDocument();
- if (viewControl == null || pdfDoc == null)
- {
- return;
- }
- try
- {
- ScrollViewer sv = GetScrollHost(PageEditListBox);
- if (sv == null || VisualTreeHelper.GetParent(this) == null)
- {
- return;
- }
- var range = GetRoughViewportRange(PageEditListBox, (PageEditListBox.Items[0] as ListBoxItem).DesiredSize, new Thickness(6, 10, 6, 10));
- for (int i = 0; i < PageEditListBox.Items.Count; ++i)
- {
- ListBoxItem item = PageEditListBox.Items[i] as ListBoxItem;
- Image img = GetImageElement(item);
- if (i >= (range.Item1 - 1) && i <= range.Item2 || ViewportHelper.IsInViewport(sv, item))
- {
- if (img.Source == null && !visiblePageIndexes.Contains(i))
- {
- visiblePageIndexes.Add(i);
- await Task.Delay(1);
- await GetThumbnail(i, (int)img.Width, (int)img.Height);
- Debug.WriteLine("Page {0} is visible, asking for thumb", (i + 1));
- }
- else if (img.Source == null)
- {
- await GetThumbnail(i, (int)img.Width, (int)img.Height);
- Debug.WriteLine("Page {0} is visible, asking for thumb", (i + 1));
- }
- }
- else
- {
- if (visiblePageIndexes.Contains(i))
- {
- Image image = GetImageElement(PageEditListBox.Items[i] as ListBoxItem);
- if (image.Source != null)
- {
- image.Source = null;
- Debug.WriteLine("Page {0} is out of range, removed thumb", (i + 1));
- }
- else
- {
- Debug.WriteLine("Page {0} is out of range, but had no thumb", (i + 1));
- }
- visiblePageIndexes.Remove(i);
- }
- }
- }
- }
- catch (Exception ex)
- {
- Debug.WriteLine(ex.ToString());
- }
- }
- public void RefreshBookMarkList()
- {
- CPDFDocument pdfDoc = GetPDFDocument();
- if (pdfDoc != null)
- {
- var booklist = pdfDoc.GetBookmarkList();
- if (booklist == null) return;
- List<int> marks = new List<int>();
- for (int i = 0; i < booklist.Count; i++)
- {
- marks.Add(booklist[i].PageIndex);
- }
- for (int k = 0; k < PageEditListBox.Items.Count; k++)
- {
- Polygon polygon = GetBookMarkIco(PageEditListBox.Items[k] as ListBoxItem);
- if (marks.Contains(k))
- polygon.Visibility = Visibility.Visible;
- else
- polygon.Visibility = Visibility.Collapsed;
- }
- }
- }
- private void UpdateSelectedIndex()
- {
- CPDFViewer pdfView=GetPDFViewer();
- if(pdfView != null && pdfView.CurrentRenderFrame!=null)
- {
- int pageIndex=pdfView.CurrentRenderFrame.PageIndex;
- if (PageEditListBox.Items.Count == 0)
- {
- PageEditListBox.SelectedIndex = -1;
- }
- else if (PageEditListBox.Items.Count <= pageIndex)
- {
- PageEditListBox.SelectedIndex = 0;
- }
- else if (PageEditListBox.SelectedIndex != pageIndex)
- {
- PageEditListBox.SelectedIndex = pageIndex;
- }
- PageEditListBox.ScrollIntoView(PageEditListBox.Items[PageEditListBox.SelectedIndex]);
- }
- }
- private Image GetImageElement(ListBoxItem item)
- {
- Viewbox viewBox = (item.Content as StackPanel).Children[0] as Viewbox;
- Image img = ((viewBox.Child as Border).Child as Grid).Children[0] as Image;
- return img;
- }
- private Polygon GetBookMarkIco(ListBoxItem item)
- {
- Viewbox viewBox = (item.Content as StackPanel).Children[0] as Viewbox;
- Polygon ico = ((viewBox.Child as Border).Child as Grid).Children[1] as Polygon;
- return ico;
- }
- private StackPanel GetPanel(ListBoxItem item)
- {
- StackPanel panel = item.Content as StackPanel;
- return panel;
- }
- private TextBlock GetPageNumTextBlock(ListBoxItem item)
- {
- TextBlock text = (item.Content as StackPanel).Children[1] as TextBlock;
- return text;
- }
- public VirtualizingWrapPanel GetWrapPanel(ListBox listBox)
- {
- Border border = VisualTreeHelper.GetChild(listBox, 0) as Border;
- var panel = Utils.FindVisualChild<VirtualizingWrapPanel>(border);
- return panel;
- }
- private ScrollViewer GetScrollHost(ListBox listBox)
- {
- if (VisualTreeHelper.GetChildrenCount(listBox) > 0)
- {
- int s = VisualTreeHelper.GetChildrenCount(listBox);
- Border border = VisualTreeHelper.GetChild(listBox, 0) as Border;
- if (border != null)
- {
- return VisualTreeHelper.GetChild(border, 0) as ScrollViewer;
- }
- }
- return null;
- }
-
- private void DragToSort(int sourceindex, int targetindex)
- {
- if (targetindex == sourceindex || targetindex < 0)
- {
- MidLane.Visibility = Visibility.Collapsed;
- return;
- }
- var source = PageEditListBox.Items[sourceindex];
- bindPageList.RemoveAt(sourceindex);
- MidLane.Visibility = Visibility.Collapsed;
- bindPageList.Insert(targetindex, source as ListBoxItem);
- PageEditListBox.SelectedItems.Add(source);
- CPDFDocument pdfDoc=GetPDFDocument();
- if(pdfDoc != null)
- {
- var result = pdfDoc.MovePage(sourceindex, targetindex);
- if (!result)
- {
- MidLane.Visibility = Visibility.Collapsed;
- return;
- }
- }
-
- CPDFViewer pdfViewer=GetPDFViewer();
- if(pdfViewer!=null)
- {
- pdfViewer.UpdateVirtualNodes();
- pdfViewer.GoToPage(PageEditListBox.SelectedIndex, new Point(0, 0));
- pdfViewer.UndoManager?.ClearHistory();
- }
- ItemsInViewHitTest();
- this.PageMoved?.Invoke(this, new RoutedEventArgs());
- UpdateSortedPageNum(sourceindex, targetindex);
- }
-
- private void UpdateSortedPageNum(int sourceIndex, int targetIndex)
- {
- int sum = sourceIndex + targetIndex;
- targetIndex = targetIndex > sourceIndex ? targetIndex : sourceIndex;
- sourceIndex = sum - targetIndex;
- sourceIndex = sourceIndex <= 0 ? 0 : sourceIndex;
- targetIndex = targetIndex + 1 > PageEditListBox.Items.Count ? PageEditListBox.Items.Count - 1 : targetIndex;
- for (int i = sourceIndex; i <= targetIndex; i++)
- {
- var item = PageEditListBox.Items[i] as ListBoxItem;
- item.Tag = i;
- TextBlock pagenum = GetPageNumTextBlock(item);
- pagenum.Text = (i + 1).ToString();
- }
- }
-
- private void UpdateAllPageNum()
- {
- for (int i = 0; i < PageEditListBox.Items.Count; i++)
- {
- var pagenum = GetPageNumTextBlock(PageEditListBox.Items[i] as ListBoxItem);
- pagenum.Text = (i + 1).ToString();
- (PageEditListBox.Items[i] as ListBoxItem).Tag = i;
- }
- }
- public void DoInsert(EventArgs e)
- {
- var data = e as InsertEventClass;
- CPDFDocument pdfDoc = GetPDFDocument();
- if (data.InsertType == InsertType.BlankPages)
- {
- if(pdfDoc!=null)
- {
- var size = pdfDoc.GetPageSize(data.InsertIndex - 1);
- if (size.width == 0 || size.height == 0)
- {
- size = pdfDoc.GetPageSize(data.InsertIndex);
- }
- pdfDoc.InsertPage(data.InsertIndex, size.width, size.height, "");
- }
-
- RefreshThumbnail();
- PageEditListBox.SelectedItems.Clear();
- PageEditListBox.SelectedIndex = data.InsertIndex;
- }
- else if (data.InsertType == InsertType.CustomBlankPages)
- {
- pdfDoc.InsertPage(data.InsertIndex, (float)data.PageWidth, (float)data.PageHeight, "");
- RefreshThumbnail();
- PageEditListBox.SelectedItems.Clear();
- PageEditListBox.SelectedIndex = data.InsertIndex;
- }
- else
- {
- DoAddFromOtherPdf(data.FilePath, data.PageRange, data.InsertIndex, data.Password);
- }
- UpdateAllPageNum();
- CPDFViewer pdfViewer= GetPDFViewer();
- if(pdfViewer!=null)
- {
- pdfViewer?.UndoManager?.ClearHistory();
- pdfViewer.UpdateVirtualNodes();
- }
-
- PageEditListBox.ScrollIntoView(PageEditListBox.SelectedItem as ListBoxItem);
- ItemsInViewHitTest();
- }
- public void DoReplace()
- {
- if (PageEditListBox.SelectedItems.Count < 1)
- {
- ShowAlertWithTimeout(AlertType.EmptyPageAlert);
- return;
- }
- OpenFileDialog dialog = new OpenFileDialog();
- dialog.Multiselect = false;
- dialog.Filter = "(*.pdf)|*.pdf";
- if ((bool)dialog.ShowDialog())
- {
- CPDFDocument doc = CPDFDocument.InitWithFilePath(dialog.FileName);
- int pagecount = doc.PageCount;
- int insertindex = PageEditListBox.Items.IndexOf(PageEditListBox.SelectedItem);
- if (insertindex == -1)
- insertindex = 0;
- CPDFDocument pdfDoc = GetPDFDocument();
- if(pdfDoc!=null)
- {
- pdfDoc.ImportPagesAtIndex(doc, "1-" + pagecount, insertindex);
- }
- doc.Release();
- for (int i = 0; i < pagecount; i++)
- {
- var item = GetNewItem(insertindex + i);
- bindPageList.Insert(insertindex + i, item);
- if (visiblePageIndexes.Contains(insertindex + i))
- visiblePageIndexes.Remove(insertindex + i);
- }
- CPDFViewer pdfViewer=GetPDFViewer();
- if(pdfViewer!=null)
- {
- pdfViewer.UndoManager?.ClearHistory();
- }
- var list = GetListFromSelectedItems();
- for (int i = insertindex; i < (insertindex + pagecount); i++)
- {
- if (i < PageEditListBox.Items.Count)
- {
- ListBoxItem t = PageEditListBox.Items[i] as ListBoxItem;
- PageEditListBox.SelectedItems.Add(t);
- }
- }
- DoDelete(list, false);
- UpdateAllPageNum();
- RefreshBookMarkList();
- ItemsInViewHitTest();
- }
- }
- private void DoRotate(double angleStep)
- {
- if (viewControl == null) return;
- if (PageEditListBox.SelectedItems.Count < 1)
- {
- ShowAlertWithTimeout(AlertType.EmptyPageAlert);
- return;
- }
- List<ListBoxItem> pages = new List<ListBoxItem>();
- CPDFViewer pdfViewer = GetPDFViewer();
- for (int i = 0; i < PageEditListBox.SelectedItems.Count; i++)
- {
- var image = GetImageElement(PageEditListBox.SelectedItems[i] as ListBoxItem);
- pages.Add(PageEditListBox.SelectedItems[i] as ListBoxItem);
- double angle = (double)image.LayoutTransform.GetValue(RotateTransform.AngleProperty);
- angle += angleStep;
- angle = angle % 360;
- image.LayoutTransform = new RotateTransform(angle, image.ActualWidth / 2, image.ActualHeight / 2);
- var index = PageEditListBox.Items.IndexOf(PageEditListBox.SelectedItems[i]);
- CPDFDocument pdfDoc = GetPDFDocument();
- if(pdfDoc!=null)
- {
- pdfDoc.RotatePage(index, (int)angleStep / 90);
- pdfDoc.ReleasePages(index);
- }
- pdfViewer?.UndoManager?.ClearHistory();
- if (visiblePageIndexes.Contains(index))
- visiblePageIndexes.Remove(index);
- }
- pdfViewer?.UpdateVirtualNodes();
- ItemsInViewHitTest();
- }
-
- public static string CreateFilePath(string path)
- {
- int i = 1;
- string oldDestName = path;
- do
- {
- if (File.Exists(path))
- {
- int lastDot = oldDestName.LastIndexOf('.');
- string fileExtension = string.Empty;
- string fileName = oldDestName;
- if (lastDot > 0)
- {
- fileExtension = fileName.Substring(lastDot);
- fileName = fileName.Substring(0, lastDot);
- }
- path = fileName + string.Format(@"({0})", i) + fileExtension;
- }
- ++i;
- } while (File.Exists(path));
- return path;
- }
- public void DoExtract(EventArgs e)
- {
- var data = e as ExtractEventClass;
- CPDFDocument pdfDoc= GetPDFDocument();
- if(pdfDoc== null)
- {
- return;
- }
- int pagecount = pdfDoc.PageCount;
- string pageName = "";
- List<int> pagenums = new List<int>();
- pagenums.Clear();
- switch (data.PageMode)
- {
- case 1:
- for (int i = 0; i < pagecount; i++)
- {
- pagenums.Add(i + 1);
- }
- pageName = "1-" + pagecount;
- break;
- case 2:
- int count = (pagecount + 1) / 2;
- for (int i = 0; i < count; i++)
- {
- pagenums.Add(i * 2 + 1);
- }
- pageName = "OddPages";
- break;
- case 3:
- if (pagecount == 1)
- return;
- count = pagecount / 2;
- for (int i = 0; i < count; i++)
- {
- pagenums.Add(i * 2 + 2);
- }
- pageName = "EvenPages";
- break;
- case 4:
- pagenums = data.PageParm;
- pageName = data.PageName;
- break;
- default:
- break;
- }
- Winform.FolderBrowserDialog dialog = new Winform.FolderBrowserDialog();
- if (dialog.ShowDialog() == Winform.DialogResult.OK)
- {
- if (string.IsNullOrEmpty(dialog.SelectedPath))
- {
- return;
- }
- }
- else
- return;
- string selectedfile = "";
- if (data.ExtractToSingleFile)
- {
- for (int i = 0; i < pagenums.Count; i++)
- {
- string filename = pdfDoc.FileName + " " + (pagenums[i]) + ".pdf";
- string path = System.IO.Path.Combine(dialog.SelectedPath, filename);
- path = CreateFilePath(path);
- selectedfile = path;
- CPDFDocument savedoc = CPDFDocument.CreateDocument();
- bool result = savedoc.ImportPages(pdfDoc, (pagenums[i]).ToString());
- if (!result)
- {
- savedoc.Release();
- continue;
- }
- result = savedoc.WriteToFilePath(path);
- if (!result)
- {
- savedoc.Release();
- continue;
- }
- savedoc.Release();
- }
- }
- else
- {
- string filename = pdfDoc.FileName + " " + pageName + ".pdf";
- string path = System.IO.Path.Combine(dialog.SelectedPath, filename);
- path = CreateFilePath(path);
- selectedfile = path;
- CPDFDocument savedoc = CPDFDocument.CreateDocument();
- string range = (data.PageMode == 1 || data.PageMode == 4) ? pageName : String.Join(",", pagenums);
- bool result = savedoc.ImportPages(pdfDoc, range);
- if (!result)
- {
- return;
- }
- result = savedoc.WriteToFilePath(path);
- if (!result)
- {
- }
- savedoc.Release();
- }
- if (data.DeleteAfterExtract)
- {
- List<ListBoxItem> items = new List<ListBoxItem>();
- for (int i = 0; i < pagenums.Count; i++)
- {
- ListBoxItem item = PageEditListBox.Items[pagenums[i]-1] as ListBoxItem;
- items.Add(item);
- }
- DoDelete(items, false);
- CPDFViewer pdfViewer= GetPDFViewer();
- if(pdfViewer != null)
- {
- pdfViewer.UndoManager?.ClearHistory();
- }
-
- ItemsInViewHitTest();
- }
- Process.Start(@"explorer.exe", "/select,\"" + selectedfile + "\"");
- }
- private void DoPaste()
- {
- if (viewControl == null) return;
- if (ViewportHelper.CopyDoc == null)
- {
- return;
- }
- int insertIndex = 0;
- for (int k = 0; k < PageEditListBox.SelectedItems.Count; k++)
- {
- if (insertIndex < PageEditListBox.Items.IndexOf(PageEditListBox.SelectedItems[k] as ListBoxItem))
- insertIndex = PageEditListBox.Items.IndexOf(PageEditListBox.SelectedItems[k] as ListBoxItem);
- }
- insertIndex++;
- int pagecount = ViewportHelper.CopyDoc.PageCount;
- CPDFDocument pdfDoc = GetPDFDocument();
- if (pdfDoc == null)
- {
- return;
- }
- bool result = pdfDoc.ImportPagesAtIndex(ViewportHelper.CopyDoc, "1-" + pagecount, insertIndex);
- if (!result)
- {
- return;
- }
- CPDFViewer pdfViewer=GetPDFViewer();
- pdfViewer?.UpdateVirtualNodes();
- AddBlankPages(pagecount, insertIndex);
- ItemsInViewHitTest();
- pdfViewer?.UndoManager?.ClearHistory();
- RefreshBookMarkList();
- List<ListBoxItem> pageList = new List<ListBoxItem>();
- PageEditListBox.SelectedItems.Clear();
- for (int i = 0; i < pagecount; i++)
- {
- pageList.Add(PageEditListBox.Items[insertIndex + i] as ListBoxItem);
- PageEditListBox.SelectedItems.Add(PageEditListBox.Items[insertIndex + i] as ListBoxItem);
- }
- UpdateAllPageNum();
- }
- private void DoCopy()
- {
- if (viewControl == null) return;
- if (PageEditListBox.SelectedItems.Count < 1)
- {
- ShowAlertWithTimeout(AlertType.EmptyPageAlert);
- return;
- }
- ViewportHelper.CopyDoc = null;
- ViewportHelper.CopyDoc = CPDFDocument.CreateDocument();
- CPDFDocument pdfDoc=GetPDFDocument();
- if(pdfDoc != null)
- {
- string pageParam = GetPageParam();
- ViewportHelper.CopyDoc.ImportPages(pdfDoc, pageParam);
- }
- }
- private void DoExchange(List<ListBoxItem> pageLists)
- {
- if (pageLists.Count <= 1)
- {
- return;
- }
- List<int> pages = new List<int>();
- for (int i = 0; i < pageLists.Count; i++)
- {
- int pageIndex = PageEditListBox.Items.IndexOf(pageLists[i] as ListBoxItem);
- pages.Add(pageIndex);
- }
- pages.Sort();
- for (int i = 0; i < pages.Count; i++)
- {
- int preindex = pages[i];
- int laterIndex = pages[pages.Count - i - 1];
- if (laterIndex <= preindex)
- return;
- var sourceitem = PageEditListBox.Items[preindex] as ListBoxItem;
- var targetitem = PageEditListBox.Items[laterIndex] as ListBoxItem;
- bindPageList.Remove(sourceitem);
- bindPageList.Remove(targetitem);
- bindPageList.Insert(preindex, targetitem);
- bindPageList.Insert(laterIndex, sourceitem);
- CPDFDocument pdfDoc= GetPDFDocument();
- pdfDoc?.ExchangePage(preindex, laterIndex);
- CPDFViewer pdfViewer=GetPDFViewer();
- pdfViewer?.UndoManager?.ClearHistory();
- PageEditListBox.SelectedItems.Add(targetitem);
- PageEditListBox.SelectedItems.Add(sourceitem);
- }
- }
-
- private void DoDelete(List<ListBoxItem> pageLists, bool tip)
- {
- if (pageLists.Count == 0)
- {
- ShowAlertWithTimeout(AlertType.EmptyPageAlert);
- return;
- }
- if (pageLists.Count == PageEditListBox.Items.Count)
- {
- ShowAlertWithTimeout(AlertType.AllPageAlert);
- return;
- }
- Winform.DialogResult result = Winform.DialogResult.OK;
- if (tip)
- {
- result = Winform.MessageBox.Show(Helper.LanguageHelper.DocEditorManager.GetString("Warn_Delete")
- , Helper.LanguageHelper.CommonManager.GetString("Caption_Warning")
- , Winform.MessageBoxButtons.OKCancel, Winform.MessageBoxIcon.Warning);
- }
- if (result == Winform.DialogResult.OK || !tip)
- {
- List<int> pages = new List<int>();
- for (int i = 0; i < pageLists.Count; i++)
- {
- var index = PageEditListBox.Items.IndexOf(pageLists[i]);
- pages.Add(index);
- }
- pages.Sort();
- if (pages.Count == 0) return;
- for (int i = pages.Count - 1; i >= 0; i--)
- {
- bindPageList.RemoveAt(pages[i]);
- }
- CPDFDocument pdfDoc=GetPDFDocument();
- if(pdfDoc==null)
- {
- return;
- }
- var r = pdfDoc.RemovePages(pages.ToArray());
- if (!r)
- {
- return;
- }
- CPDFViewer pdfViewer= GetPDFViewer();
- pdfViewer?.UndoManager?.ClearHistory();
- UpdateAllPageNum();
- pdfViewer?.UpdateVirtualNodes();
- }
- }
- private List<ListBoxItem> GetListFromSelectedItems()
- {
- List<ListBoxItem> itemlists = new List<ListBoxItem>();
- for (int i = 0; i < PageEditListBox.SelectedItems.Count; i++)
- {
- itemlists.Add(PageEditListBox.SelectedItems[i] as ListBoxItem);
- }
- return itemlists;
- }
-
- public static bool GetPagesInRange(ref List<int> pageList, string pageRange, int count, char[] enumerationSeparator, char[] rangeSeparator, bool inittag = false)
- {
- string[] rangeSplit = pageRange.Split(enumerationSeparator);
- pageList.Clear();
- foreach (string range in rangeSplit)
- {
- int starttag = 1;
- if (inittag)
- {
- starttag = 0;
- }
- if (range.Contains("-"))
- {
- try
- {
- string[] limits = range.Split(rangeSeparator);
- if (limits.Length >= 2 && !string.IsNullOrWhiteSpace(limits[0]) && !string.IsNullOrWhiteSpace(limits[1]))
- {
- int start = int.Parse(limits[0]);
- int end = int.Parse(limits[1]);
- if ((start < starttag) || (end > count) || (start > end))
- {
- return false;
- }
- for (int i = start; i <= end; ++i)
- {
- if (pageList.Contains(i))
- {
- return false;
- }
- pageList.Add(i - 1);
- }
- continue;
- }
- }
- catch (Exception ex)
- {
- return false;
- }
- }
- int pageNr;
- try
- {
- pageNr = int.Parse(range);
- }
- catch (Exception)
- {
- return false;
- }
- if (pageNr < starttag || pageNr > count)
- {
- return false;
- }
- if (pageList.Contains(pageNr))
- {
- return false;
- }
- pageList.Add(pageNr - 1);
- }
- return true;
- }
-
- private void DoAddFromOtherPdf(string filepath, string pagerange, int insertindex, string password)
- {
- CPDFDocument doc = CPDFDocument.InitWithFilePath(filepath);
- if(doc.IsLocked && password != string.Empty)
- {
- if(!doc.UnlockWithPassword(password))
- {
- return;
- }
- }
- int pagecount = 0;
- string insertRange = "";
- if (pagerange == "AllPages")
- {
- pagecount = doc.PageCount;
- insertRange = "1-" + pagecount;
- }
- else if (pagerange == "OddPages")
- {
- pagecount = (doc.PageCount + 1) / 2;
- int[] page = new int[(doc.PageCount + 1) / 2];
- for (int i = 0; i < page.Length; i++)
- {
- page[i] = i * 2 + 1;
- }
- insertRange = string.Join(",", page);
- }
- else if (pagerange == "EvenPages")
- {
- if (doc.PageCount == 1)
- {
- insertRange = "1";
- pagecount = 1;
- }
- else
- {
- pagecount = doc.PageCount / 2;
- int[] page = new int[doc.PageCount / 2];
- for (int i = 0; i < page.Length; i++)
- {
- page[i] = i * 2 + 2;
- }
- insertRange = string.Join(",", page);
- }
- }
- else
- {
- List<int> page = new List<int>();
- GetPagesInRange(ref page, pagerange, doc.PageCount, new char[] { ',' }, new char[] { '-' });
- insertRange = pagerange;
- pagecount = page.Count;
- }
- CPDFDocument pdfDoc = GetPDFDocument();
- if(pdfDoc == null)
- {
- return;
- }
- var result = pdfDoc.ImportPagesAtIndex(doc, insertRange, insertindex);
- if (!result)
- {
- return;
- }
- doc.Release();
- RefreshThumbnail();
- PageEditListBox.SelectedItems.Clear();
- for (int i = insertindex; i < insertindex + pagecount; i++)
- {
- PageEditListBox.SelectedItems.Add(PageEditListBox.Items[i] as ListBoxItem);
- }
- }
- private string GetPageParam()
- {
- string pageParam = "";
- List<int> pagesList = new List<int>();
- for (int i = 0; i < PageEditListBox.SelectedItems.Count; i++)
- {
- var item = PageEditListBox.SelectedItems[i] as ListBoxItem;
- var page = GetPageNumTextBlock(item);
- if (page != null)
- {
- pagesList.Add(int.Parse(page.Text));
- }
- }
- if (pagesList.Count != 0)
- {
- pagesList.Sort();
- for (int i = 0; i < pagesList.Count; i++)
- {
- if (i == 0)
- {
- pageParam += pagesList[0].ToString();
- }
- else
- {
- if (pagesList[i] == pagesList[i - 1] + 1)
- {
- if (i >= 2)
- {
- if (pagesList[i - 1] != pagesList[i - 2] + 1)
- pageParam += "-";
- }
- else
- pageParam += "-";
- if (i == pagesList.Count - 1)
- {
- pageParam += pagesList[i].ToString();
- }
- }
- else
- {
- if (i >= 2)
- {
- if (pagesList[i - 1] == pagesList[i - 2] + 1)
- pageParam += pagesList[i - 1].ToString();
- }
- pageParam += "," + pagesList[i].ToString();
- }
- }
- }
- }
- return pageParam;
- }
-
- public static BitmapSource ToBitmapSource(string path)
- {
- System.Drawing.Icon ico = System.Drawing.Icon.ExtractAssociatedIcon(path);
- System.Drawing.Bitmap bitmap = ico.ToBitmap();
- BitmapSource returnSource;
- try
- {
- returnSource = System.Windows.Interop.Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());
- }
- catch
- {
- returnSource = null;
- }
- return returnSource;
- }
-
- private Tuple<int, int, int> GetRoughViewportRange(ListBox view, Size itemSize, Thickness itemMargin)
- {
- var scrollViewer = GetScrollHost(view);
- CPDFDocument pdfDoc = GetPDFDocument();
- if (pdfDoc == null)
- {
- return new Tuple<int, int, int>(0, 0, 0);
- }
- if (viewControl == null || pdfDoc == null || scrollViewer == null || scrollViewer.ActualHeight == 0 || scrollViewer.ActualWidth == 0)//视图展开
- return new Tuple<int, int, int>(0, 0, 0);
- try
- {
- var currentHeight = scrollViewer.ActualHeight - view.Padding.Top;
- var currentWidth = scrollViewer.ActualWidth;
- var columnCount = (int)(currentWidth / (itemSize.Width + itemMargin.Left));
- var rowCount = (int)Math.Ceiling(currentHeight / (itemSize.Height + itemMargin.Bottom));
- var preItemCount = (int)((scrollViewer.VerticalOffset / scrollViewer.ExtentHeight) * ((pdfDoc.PageCount + columnCount - 1) / columnCount));//滑动百分比*行数 = 大概的垂直位置
- preItemCount = preItemCount * columnCount;
- var preEnd = (int)(((scrollViewer.VerticalOffset + scrollViewer.ActualHeight) / scrollViewer.ExtentHeight) * ((pdfDoc.PageCount + columnCount - 1) / columnCount));
- preEnd = preEnd * columnCount + columnCount - 1;
- var middle = (int)Math.Ceiling(preItemCount + preEnd / 2d);
- return new Tuple<int, int, int>(
- Math.Max(preItemCount, 0),
- Math.Min(view.Items.Count, preEnd),
- middle);
- }
- catch (Exception ex)
- {
- }
- return new Tuple<int, int, int>(0, 0, 0);
- }
- private void ShowAlertWithTimeout(AlertType alertType)
- {
- AlertBorder.Visibility = Visibility.Visible;
- AlertBorder.Opacity = 1.0;
-
- if (alertType == AlertType.EmptyPageAlert)
- {
- AlertTextBlock.Text = Helper.LanguageHelper.DocEditorManager.GetString("Tip_NoPage");
- }
- else if (alertType == AlertType.SinglePageALert)
- {
- AlertTextBlock.Text = "Please select above two pages.";
- }
- else if (alertType == AlertType.AllPageAlert)
- {
- AlertTextBlock.Text = Helper.LanguageHelper.DocEditorManager.GetString("Tip_AllPage");
- }
-
- DoubleAnimation animation = new DoubleAnimation();
- animation.From = 1.0;
- animation.To = 0.0;
- animation.Duration = TimeSpan.FromSeconds(3);
- AlertBorder.BeginAnimation(OpacityProperty, animation);
- }
- #endregion
- private void UserControl_MouseEnter(object sender, MouseEventArgs e)
- {
- MidLane.Visibility = Visibility.Collapsed;
- }
- private void UserControl_SizeChanged(object sender, SizeChangedEventArgs e)
- {
- ItemsInViewHitTest();
- }
- private CPDFDocument GetPDFDocument()
- {
- CPDFViewer pdfViewer = GetPDFViewer();
- if (pdfViewer!=null)
- {
- return pdfViewer.GetDocument();
- }
- return null;
- }
- private CPDFViewer GetPDFViewer()
- {
- if (viewControl != null && viewControl.PDFViewTool != null)
- {
- CPDFViewer pdfViewer = viewControl.PDFViewTool.GetCPDFViewer();
- if (pdfViewer != null)
- {
- return pdfViewer;
- }
- }
- return null;
- }
- public async Task GetThumbnail(int pageIndex, int imageWidth, int imageHeight)
- {
- if (imageWidth <= 0 || imageHeight <= 0)
- {
- return;
- }
- if (viewControl == null || viewControl.PDFViewTool == null)
- {
- return;
- }
- CPDFViewer pdfViewer = viewControl.PDFViewTool.GetCPDFViewer();
- CPDFDocument pdfdoc = pdfViewer?.GetDocument();
- if (pdfdoc == null)
- {
- return;
- }
- CPDFPage page = pdfdoc.PageAtIndex(pageIndex);
- byte[] bmpData = new byte[imageWidth * imageHeight * 4];
- await Task.Run(() => page.RenderPageBitmap(0, 0, imageWidth, imageHeight, 0xFFFFFFFF, bmpData, 1, true));
- if (OnThumbnailGenerated != null)
- {
- OnThumbnailGenerated(pageIndex, bmpData, imageWidth, imageHeight);
- }
- }
- }
- public class InsertEventClass : EventArgs
- {
- public InsertType InsertType = InsertType.BlankPages;
- public string FilePath = string.Empty;
- public double PageWidth = 210 * 2.54;
- public double PageHeight = 297 * 2.54;
- public string PageRange = "0";
- public int InsertIndex = 0;
- public string Password = string.Empty;
- }
- public enum InsertType
- {
- BlankPages,
- CustomBlankPages,
- FromOtherPDF
- }
- /// <summary>
- /// The parameter class used for extraction
- /// </summary>
- public class ExtractEventClass : EventArgs
- {
- /// <summary>
- /// 1- All pages 2 - Odd pages 3 - Even pages 4 - Custom ranges
- /// </summary>
- public int PageMode;
- /// <summary>
- /// PageMode = 1,2,3 PageParm = null;
- /// </summary>
- public List<int> PageParm;
- /// <summary>
- /// In custom mode, the text content is passed over
- /// </summary>
- public string PageName = "";
- /// <summary>
- /// Whether to split into a single file
- /// </summary>
- public bool ExtractToSingleFile;
- /// <summary>
- /// Delete the page after extraction
- /// </summary>
- public bool DeleteAfterExtract;
- }
- public enum AlertType
- {
- EmptyPageAlert,
- SinglePageALert,
- AllPageAlert,
- }
- }
|