zilinsoft
993f1ca1a9
------ #### SuperDesign V3.0.2412.2001 - *.[新增]新增程序更新日志设置和自动发布功能。 - *.[修复]修复Post数据格式不正确时双击文本框会导致软件闪退的BUG。
521 lines
15 KiB
C#
521 lines
15 KiB
C#
using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Text;
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using System.Windows.Forms;
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using ICSharpCode.TextEditor.Document;
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using ICSharpCode.TextEditor;
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using System.Diagnostics;
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using System.IO;
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namespace XmlPad
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{
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public partial class FindAndReplaceForm : Form
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{
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public FindAndReplaceForm()
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{
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InitializeComponent();
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_search = new TextEditorSearcher();
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}
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TextEditorSearcher _search;
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FastColoredTextBoxNS.FastColoredTextBox _editor;
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FastColoredTextBoxNS.FastColoredTextBox Editor
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{
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get { return _editor; }
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set
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{
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_editor = value;
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_search.Document = _editor.Document;
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UpdateTitleBar();
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}
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}
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private void UpdateTitleBar()
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{
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string text = ReplaceMode ? "查找和替换" : "查找";
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if (_editor != null && _editor.FileName != null)
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text += " - " + Path.GetFileName(_editor.FileName);
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if (_search.HasScanRegion)
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text += " (只可选)";
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this.Text = text;
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}
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public void ShowFor(FastColoredTextBoxNS.FastColoredTextBox editor, bool replaceMode)
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{
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Editor = editor;
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_search.ClearScanRegion();
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SelectionManager sm = editor.ActiveTextAreaControl.SelectionManager;
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if (sm.HasSomethingSelected && sm.SelectionCollection.Count == 1)
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{
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ISelection sel = sm.SelectionCollection[0];
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if (sel.StartPosition.Y == sel.EndPosition.Y)
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txtLookFor.Text = sm.SelectedText;
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else
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_search.SetScanRegion(sel);
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}
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else
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{
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// Get the current word that the caret is on
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Caret caret = editor.ActiveTextAreaControl.Caret;
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int start = TextUtilities.FindWordStart(editor.Document, caret.Offset);
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int endAt = TextUtilities.FindWordEnd(editor.Document, caret.Offset);
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txtLookFor.Text = editor.Document.GetText(start, endAt - start);
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}
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ReplaceMode = replaceMode;
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this.Owner = (Form)editor.TopLevelControl;
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this.Show();
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txtLookFor.SelectAll();
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txtLookFor.Focus();
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}
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public bool ReplaceMode
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{
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get { return txtReplaceWith.Visible; }
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set
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{
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btnReplace.Visible = btnReplaceAll.Visible = value;
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lblReplaceWith.Visible = txtReplaceWith.Visible = value;
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btnFindAllHighlightAll.Visible = !value;
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this.AcceptButton = value ? btnReplace : btnFindNext;
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UpdateTitleBar();
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}
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}
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private void BtnFindPrevious_Click(object sender, EventArgs e)
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{
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FindNext(false, true, "内容没有找到！");
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}
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private void BtnFindNext_Click(object sender, EventArgs e)
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{
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FindNext(false, false, "内容没有找到");
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}
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public bool _lastSearchWasBackward = false;
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public bool _lastSearchLoopedAround;
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public TextRange FindNext(bool viaF3, bool searchBackward, string messageIfNotFound)
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{
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if (string.IsNullOrEmpty(txtLookFor.Text))
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{
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MessageBox.Show("没有指定要查找的内容！", "提示");
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return null;
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}
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_lastSearchWasBackward = searchBackward;
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_search.LookFor = txtLookFor.Text;
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_search.MatchCase = chkMatchCase.Checked;
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_search.MatchWholeWordOnly = chkMatchWholeWord.Checked;
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Caret caret = _editor.ActiveTextAreaControl.Caret;
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if (viaF3 && _search.HasScanRegion && !Globals.IsInRange(caret.Offset, _search.BeginOffset, _search.EndOffset))
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{
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// user moved outside of the originally selected region
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_search.ClearScanRegion();
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UpdateTitleBar();
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}
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int startFrom = caret.Offset - (searchBackward ? 1 : 0);
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TextRange range = _search.FindNext(startFrom, searchBackward, out _lastSearchLoopedAround);
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if (range != null)
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SelectResult(range);
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else if (messageIfNotFound != null)
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MessageBox.Show(messageIfNotFound, "提示");
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return range;
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}
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private void SelectResult(TextRange range)
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{
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TextLocation p1 = _editor.Document.OffsetToPosition(range.Offset);
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TextLocation p2 = _editor.Document.OffsetToPosition(range.Offset + range.Length);
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_editor.ActiveTextAreaControl.SelectionManager.SetSelection(p1, p2);
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//_editor.ActiveTextAreaControl.ScrollTo(p1.Line, p1.Column);
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// Also move the caret to the end of the selection, because when the user
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// presses F3, the caret is where we start searching next time.
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_editor.ActiveTextAreaControl.Caret.Position =
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_editor.Document.OffsetToPosition(range.Offset + range.Length);
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}
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Dictionary<TextEditorControl, HighlightGroup> _highlightGroups = new Dictionary<TextEditorControl, HighlightGroup>();
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private void btnHighlightAll_Click(object sender, EventArgs e)
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{
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if (!_highlightGroups.ContainsKey(_editor))
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_highlightGroups[_editor] = new HighlightGroup(_editor);
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HighlightGroup group = _highlightGroups[_editor];
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if (string.IsNullOrEmpty(LookFor))
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// Clear highlights
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group.ClearMarkers();
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else
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{
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_search.LookFor = txtLookFor.Text;
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_search.MatchCase = chkMatchCase.Checked;
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_search.MatchWholeWordOnly = chkMatchWholeWord.Checked;
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bool looped = false;
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int offset = 0, count = 0;
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for (; ; )
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{
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TextRange range = _search.FindNext(offset, false, out looped);
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if (range == null || looped)
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break;
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offset = range.Offset + range.Length;
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count++;
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TextMarker m = new TextMarker(range.Offset, range.Length,
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TextMarkerType.SolidBlock, Color.Yellow, Color.Black);
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group.AddMarker(m);
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}
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if (count == 0)
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MessageBox.Show("没有找到你要查找的内容", "提示");
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else
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Close();
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}
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}
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private void FindAndReplaceForm_FormClosing(object sender, FormClosingEventArgs e)
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{ // Prevent dispose, as this form can be re-used
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if (e.CloseReason != CloseReason.FormOwnerClosing)
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{
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if (this.Owner != null)
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this.Owner.Select(); // prevent another app from being activated instead
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e.Cancel = true;
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Hide();
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// Discard search region
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_search.ClearScanRegion();
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_editor.Refresh(); // must repaint manually
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}
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}
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private void btnCancel_Click(object sender, EventArgs e)
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{
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Close();
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}
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private void btnReplace_Click(object sender, EventArgs e)
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{
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SelectionManager sm = _editor.ActiveTextAreaControl.SelectionManager;
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if (string.Equals(sm.SelectedText, txtLookFor.Text, StringComparison.OrdinalIgnoreCase))
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InsertText(txtReplaceWith.Text);
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FindNext(false, _lastSearchWasBackward, "内容没有找到！");
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}
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private void btnReplaceAll_Click(object sender, EventArgs e)
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{
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int count = 0;
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// BUG FIX: if the replacement string contains the original search string
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// (e.g. replace "red" with "very red") we must avoid looping around and
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// replacing forever! To fix, start replacing at beginning of region (by
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// moving the caret) and stop as soon as we loop around.
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_editor.ActiveTextAreaControl.Caret.Position =
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_editor.Document.OffsetToPosition(_search.BeginOffset);
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//_editor.Document.UndoStack.StartUndoGroup();
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//try
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//{
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lock (_editor.Document.UndoStack)
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{
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while (FindNext(false, false, null) != null)
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{
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if (_lastSearchLoopedAround)
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break;
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// Replace
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count++;
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InsertText(txtReplaceWith.Text);
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}
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}
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//}
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//finally
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//{
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// _editor.Document.UndoStack.EndUndoGroup();
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//}
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if (count == 0)
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MessageBox.Show(string.Format("没有找到目标内容: {0}！", txtLookFor.Text), "提示");
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else
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{
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MessageBox.Show(string.Format("替换了 {0} 处内容！", count), "提示");
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Close();
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}
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}
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private void InsertText(string text)
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{
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TextArea textArea = _editor.ActiveTextAreaControl.TextArea;
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//textArea.Document.UndoStack.StartUndoGroup();
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//try
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//{
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lock (textArea.Document.UndoStack)
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{
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if (textArea.SelectionManager.HasSomethingSelected)
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{
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textArea.Caret.Position = textArea.SelectionManager.SelectionCollection[0].StartPosition;
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textArea.SelectionManager.RemoveSelectedText();
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}
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textArea.InsertString(text);
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}
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//}
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//finally
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//{
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// textArea.Document.UndoStack.EndUndoGroup();
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//}
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}
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public string LookFor { get { return txtLookFor.Text; } }
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}
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public class TextRange : AbstractSegment
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{
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IDocument _document;
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public TextRange(IDocument document, int offset, int length)
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{
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_document = document;
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this.offset = offset;
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this.length = length;
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}
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}
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/// <summary>This class finds occurrances of a search string in a text
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/// editor's IDocument... it's like Find box without a GUI.</summary>
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public class TextEditorSearcher : IDisposable
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{
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IDocument _document;
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public IDocument Document
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{
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get { return _document; }
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set
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{
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if (_document != value)
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{
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ClearScanRegion();
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_document = value;
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}
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}
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}
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// I would have used the TextAnchor class to represent the beginning and
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// end of the region to scan while automatically adjusting to changes in
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// the document--but for some reason it is sealed and its constructor is
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// internal. Instead I use a TextMarker, which is perhaps even better as
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// it gives me the opportunity to highlight the region. Note that all the
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// markers and coloring information is associated with the text document,
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// not the editor control, so TextEditorSearcher doesn't need a reference
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// to the TextEditorControl. After adding the marker to the document, we
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// must remember to remove it when it is no longer needed.
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TextMarker _region = null;
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/// <summary>Sets the region to search. The region is updated
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/// automatically as the document changes.</summary>
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public void SetScanRegion(ISelection sel)
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{
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SetScanRegion(sel.Offset, sel.Length);
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}
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/// <summary>Sets the region to search. The region is updated
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/// automatically as the document changes.</summary>
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public void SetScanRegion(int offset, int length)
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{
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Color bkgColor = _document.HighlightingStrategy.GetColorFor("Default").BackgroundColor;
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_region = new TextMarker(offset, length, TextMarkerType.SolidBlock,
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Globals.HalfMix(bkgColor, Color.FromArgb(160, 160, 160)));
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_document.MarkerStrategy.AddMarker(_region);
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}
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public bool HasScanRegion
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{
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get { return _region != null; }
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}
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public void ClearScanRegion()
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{
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if (_region != null)
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{
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_document.MarkerStrategy.RemoveMarker(_region);
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_region = null;
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}
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}
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public void Dispose() { ClearScanRegion(); GC.SuppressFinalize(this); }
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~TextEditorSearcher() { Dispose(); }
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/// <summary>Begins the start offset for searching</summary>
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public int BeginOffset
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{
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get
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{
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if (_region != null)
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return _region.Offset;
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else
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return 0;
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}
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}
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/// <summary>Begins the end offset for searching</summary>
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public int EndOffset
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{
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get
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{
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if (_region != null)
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return _region.EndOffset;
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else
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return _document.TextLength;
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}
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}
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public bool MatchCase;
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public bool MatchWholeWordOnly;
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string _lookFor;
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string _lookFor2; // uppercase in case-insensitive mode
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public string LookFor
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{
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get { return _lookFor; }
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set { _lookFor = value; }
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}
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/// <summary>Finds next instance of LookFor, according to the search rules
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/// (MatchCase, MatchWholeWordOnly).</summary>
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/// <param name="beginAtOffset">Offset in Document at which to begin the search</param>
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/// <remarks>If there is a match at beginAtOffset precisely, it will be returned.</remarks>
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/// <returns>Region of document that matches the search string</returns>
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public TextRange FindNext(int beginAtOffset, bool searchBackward, out bool loopedAround)
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{
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Debug.Assert(!string.IsNullOrEmpty(_lookFor));
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loopedAround = false;
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int startAt = BeginOffset, endAt = EndOffset;
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int curOffs = Globals.InRange(beginAtOffset, startAt, endAt);
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_lookFor2 = MatchCase ? _lookFor : _lookFor.ToUpperInvariant();
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TextRange result;
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if (searchBackward)
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{
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result = FindNextIn(startAt, curOffs, true);
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if (result == null)
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{
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loopedAround = true;
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result = FindNextIn(curOffs, endAt, true);
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}
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}
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else
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{
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result = FindNextIn(curOffs, endAt, false);
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if (result == null)
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{
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loopedAround = true;
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result = FindNextIn(startAt, curOffs, false);
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}
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}
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return result;
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}
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public delegate TResult Func<T1, T2, TResult>(T1 arg1, T2 arg2);
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public delegate TResult Func<T, TResult>(T arg);
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private TextRange FindNextIn(int offset1, int offset2, bool searchBackward)
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{
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Debug.Assert(offset2 >= offset1);
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offset2 -= _lookFor.Length;
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// Make behavior decisions before starting search loop
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Func<char, char, bool> matchFirstCh;
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Func<int, bool> matchWord;
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if (MatchCase)
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matchFirstCh = delegate(char lookFor, char c)
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{
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return lookFor == c;
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};
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else
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matchFirstCh = delegate(char lookFor, char c)
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{
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return lookFor == Char.ToUpperInvariant(c);
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};
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if (MatchWholeWordOnly)
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matchWord = IsWholeWordMatch;
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else
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matchWord = IsPartWordMatch;
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// Search
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char lookForCh = _lookFor2[0];
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if (searchBackward)
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{
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for (int offset = offset2; offset >= offset1; offset--)
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{
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if (matchFirstCh(lookForCh, _document.GetCharAt(offset))
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&& matchWord(offset))
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return new TextRange(_document, offset, _lookFor.Length);
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}
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}
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else
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{
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for (int offset = offset1; offset <= offset2; offset++)
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{
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if (matchFirstCh(lookForCh, _document.GetCharAt(offset))
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&& matchWord(offset))
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return new TextRange(_document, offset, _lookFor.Length);
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}
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}
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return null;
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}
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private bool IsWholeWordMatch(int offset)
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{
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if (IsWordBoundary(offset) && IsWordBoundary(offset + _lookFor.Length))
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return IsPartWordMatch(offset);
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else
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return false;
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}
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private bool IsWordBoundary(int offset)
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{
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return offset <= 0 || offset >= _document.TextLength ||
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!IsAlphaNumeric(offset - 1) || !IsAlphaNumeric(offset);
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}
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private bool IsAlphaNumeric(int offset)
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{
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char c = _document.GetCharAt(offset);
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return Char.IsLetterOrDigit(c) || c == '_';
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}
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private bool IsPartWordMatch(int offset)
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{
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string substr = _document.GetText(offset, _lookFor.Length);
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if (!MatchCase)
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substr = substr.ToUpperInvariant();
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return substr == _lookFor2;
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}
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}
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/// <summary>Bundles a group of markers together so that they can be cleared
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/// together.</summary>
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public class HighlightGroup : IDisposable
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{
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List<TextMarker> _markers = new List<TextMarker>();
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TextEditorControl _editor;
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IDocument _document;
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public HighlightGroup(TextEditorControl editor)
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{
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_editor = editor;
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_document = editor.Document;
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}
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public void AddMarker(TextMarker marker)
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{
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_markers.Add(marker);
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_document.MarkerStrategy.AddMarker(marker);
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}
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public void ClearMarkers()
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{
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foreach (TextMarker m in _markers)
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_document.MarkerStrategy.RemoveMarker(m);
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_markers.Clear();
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_editor.Refresh();
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}
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public void Dispose() { ClearMarkers(); GC.SuppressFinalize(this); }
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~HighlightGroup() { Dispose(); }
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public IList<TextMarker> Markers { get { return _markers.AsReadOnly(); } }
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}
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}
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