/* ----------------------------------------------------------------- */
///
/// ResetSearch
///
/// <summary>
/// MEMO: ライブラリが，検索結果を描画する状態を解除する方法を
/// 持っていないため，空の文字列で検索してリセットする．
/// </summary>
///
/* ----------------------------------------------------------------- */
private void ResetSearch(TabPage tab)
{
var canvas = CanvasPolicy.Get(tab);
try {
var dummy = new SearchArgs();
CanvasPolicy.Search(canvas, dummy);
}
catch (Exception /* err */) { }
finally {
begin_ = true;
this.Refresh(canvas);
}
}
/* ----------------------------------------------------------------- */
/// Search
/* ----------------------------------------------------------------- */
private void Search(TabPage tab, string text, bool next)
{
var canvas = CanvasPolicy.Get(tab);
if (canvas == null || text.Length <= 0) return;
var message = "";
try {
int previousPageNumber = CanvasPolicy.CurrentPage(canvas);
var args = new SearchArgs(text);
args.FromBegin = begin_;
args.IgnoreCase = true;
args.WholeDocument = true;
args.WholeWord = false;
args.FindNext = next;
var result = CanvasPolicy.Search(canvas, args);
// begin_ = !result; // 最後まで検索したら始めに戻る
if (!result) this.SearchTextBox.BackColor = Color.FromArgb(255, 102, 102);
else begin_ = false;
this.RefreshThumbnail(this.NavigationSplitContainer.Panel1, CanvasPolicy.CurrentPage(canvas), previousPageNumber);
this.Refresh(canvas, message);
}
catch (Exception err) {
Utility.ErrorLog(err);
message = err.Message;
}
}
public static bool Search(Canvas canvas, SearchArgs args)
{
if (canvas == null) return false;
var engine = canvas.Tag as CanvasEngine;
if (engine == null) return false;
var core = engine.Core;
if (core == null) return false;
core.SearchCaseSensitive = !args.IgnoreCase;
var order = args.WholeDocument ? PDFLibNet.PDFSearchOrder.PDFSearchFromdBegin : PDFLibNet.PDFSearchOrder.PDFSearchFromCurrent;
int result = 0;
if (args.FromBegin) {
PreviousSearchResult_ = null;
result = core.FindFirst(args.Text, order, false, args.WholeWord);
}
else if (args.FindNext) result = core.FindNext(args.Text);
else result = core.FindPrevious(args.Text);
//else result = core.FindText(args.Text, core.CurrentPage, order, !args.IgnoreCase, !args.FindNext, true, args.WholeWord);
var prev = core.CurrentPage;
if (result > 0 && (PreviousSearchResult_ == null || !Equals(PreviousSearchResult_, core.SearchResults[0]))) {
core.CurrentPage = core.SearchResults[0].Page;
PreviousSearchResult_ = core.SearchResults[0];
}
CanvasPolicy.Render(canvas, false);
if (core.CurrentPage != prev) engine.UpdateURL();
return result > 0;
}