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CustomRichTextBox.cs
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CustomRichTextBox.cs
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// This is an open source non-commercial project. Dear PVS-Studio, please check it.
// PVS-Studio Static Code Analyzer for C, C++ and C#: http://www.viva64.com
using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Text;
using System.Text.RegularExpressions;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Controls.Primitives;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Markup;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using System.Windows.Threading;
namespace SCADA
{
public class CustomRichTextBox : RichTextBox
{
public Button ButtonPaste;
public Button ButtonOpenFile;
public Button ButtonSaveFile;
public ComboBox ComboBoxFont;
public ComboBox ComboBoxFontSize;
public Button FontSizeUp;
public Button FontSizeDown;
public ToggleButton FontBold;
public ToggleButton FontItalic;
public ToggleButton FontUnderline;
public ToggleButton FontStrikethrough;
public ToggleButton FontOverline;
public ToggleButton FontSuperscript;
public ToggleButton FontSubscript;
public ToggleButton NumberedList;
public ToggleButton BulletedList;
public ToggleButton AlignLeft;
public ToggleButton AlignCenter;
public ToggleButton AlignRight;
public ToggleButton AlignFull;
public Rectangle RectangleColor;
private TextBox FontSizeTextBox;
private TextBox FontTextBox;
public Label DebugLabel;
public bool IsCreateRunNull;
public bool IsCreateRunBold;
public bool IsCreateRunItalic;
public bool IsCreateRunColor;
public bool IsCreateRunSize;
public bool IsCreateRunFont;
public bool IsCreateRunScript;
public bool IsCreateRunStrikethrough;
public bool IsCreateRunOverline;
public bool IsCreateRunUnderline;
public TextPointer CreateRunTextPointer;
public TextPointer startTextPointer;
public TextPointer endTextPointer;
public bool IsPaste;
public bool IsLeftSpace;
public bool IsTextNull;
public bool IsText;
public TextEditor TextEditor;
double CorrectFontSize;
FontFamily СorrectFont;
public Run Run;
public double[] FontSizes
{
get
{
return new double[] {
3.0, 4.0, 5.0, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5,
10.0, 10.5, 11.0, 11.5, 12.0, 12.5, 13.0, 13.5, 14.0, 15.0,
16.0, 17.0, 18.0, 19.0, 20.0, 22.0, 24.0, 26.0, 28.0, 30.0,
32.0, 34.0, 36.0, 38.0, 40.0, 44.0, 48.0, 52.0, 56.0, 60.0, 64.0, 68.0, 72.0, 76.0,
80.0, 88.0, 96.0, 104.0, 112.0, 120.0, 128.0, 136.0, 144.0
};
}
}
static CustomRichTextBox()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(CustomRichTextBox), new FrameworkPropertyMetadata(typeof(RichTextBox)));
}
public CustomRichTextBox(TextEditor textEditor)
{
TextEditor = textEditor;
Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
Style s = new System.Windows.Style(typeof(ComboBoxItem));
EventSetter es = new EventSetter(ComboBoxItem.PreviewMouseDownEvent, new MouseButtonEventHandler(ComboBoxItemFontSize));
s.Setters.Add(es);
ComboBoxFontSize.ItemContainerStyle = s;
FontUnderline.Click += FontUnderline_Click;
FontStrikethrough.Click += FontStrikethrough_Click;
FontOverline.Click += FontOverline_Click;
FontBold.Click += FontBold_Click;
FontItalic.Click += FontItalic_Click;
FontSuperscript.Click += FontSuperscript_Click;
FontSubscript.Click += FontSubscript_Click;
FontSizeUp.Click += FontSizeUp_Click;
FontSizeDown.Click += FontSizeDown_Click;
AlignCenter.Click += AlignCenter_Click;
AlignLeft.Click += AlignLeft_Click;
AlignRight.Click += AlignRight_Click;
AlignFull.Click += AlignFull_Click;
ButtonPaste.Click += ButtonPaste_Click;
FontTextBox = ComboBoxFont.Template.FindName("PART_EditableTextBox", ComboBoxFont) as TextBox;
FontTextBox.GotKeyboardFocus += FontTextBox_GotKeyboardFocus;
FontTextBox.PreviewKeyDown += FontTextBox_PreviewKeyDown;
ComboBoxFont.DropDownClosed += ComboBoxFont_DropDownClosed;
ComboBoxFont.PreviewTextInput += ComboBoxFont_PreviewTextInput;
ComboBoxFontSize.AddHandler(PreviewKeyDownEvent, new RoutedEventHandler(ComboBoxFontSizePreviewKeyDown), true);
ComboBoxFontSize.DropDownClosed += ComboBoxFontSize_DropDownClosed;
FontSizeTextBox = ComboBoxFontSize.Template.FindName("PART_EditableTextBox", ComboBoxFontSize) as TextBox;
FontSizeTextBox.GotKeyboardFocus += FontSizeTextBox_GotKeyboardFocus;
ButtonSaveFile.Click += ButtonSaveFile_Click;
ButtonOpenFile.Click += ButtonOpenFile_Click;
MenuItem menuItemPasteFontSize = new MenuItem();
menuItemPasteFontSize.Command = ApplicationCommands.Paste;
MenuItem menuItemCopyFontSize = new MenuItem();
menuItemCopyFontSize.Command = ApplicationCommands.Copy;
MenuItem menuItemPasteFont = new MenuItem();
menuItemPasteFont.Command = ApplicationCommands.Paste;
MenuItem menuItemCopyFont = new MenuItem();
menuItemCopyFont.Command = ApplicationCommands.Copy;
ContextMenu ContextMenuFontSize = new System.Windows.Controls.ContextMenu();
ContextMenuFontSize.Items.Add(menuItemPasteFontSize);
ContextMenuFontSize.Items.Add(menuItemCopyFontSize);
ContextMenu ContextMenuFont = new System.Windows.Controls.ContextMenu();
ContextMenuFont.Items.Add(menuItemPasteFont);
ContextMenuFont.Items.Add(menuItemCopyFont);
FontSizeTextBox.CommandBindings.Add(new CommandBinding(ApplicationCommands.Cut, IgnoreCut));
FontSizeTextBox.CommandBindings.Add(new CommandBinding(ApplicationCommands.Paste, FontSizeTextBoxPaste));
FontSizeTextBox.ContextMenu = ContextMenuFontSize;
FontTextBox.CommandBindings.Add(new CommandBinding(ApplicationCommands.Cut, IgnoreCut));
FontTextBox.ContextMenu = ContextMenuFont;
}));
ContextMenu contextMenu = new ContextMenu();
Binding BindingInsertText = new Binding();
BindingInsertText.Source = Application.Current.MainWindow;
BindingInsertText.Path = new PropertyPath("IsBindingInsertText");
BindingInsertText.Mode = BindingMode.OneWay;
MenuItem menuItemPaste = new MenuItem();
menuItemPaste.Header = "Вставить";
menuItemPaste.Click += menuItemPaste_Click;
menuItemPaste.SetBinding(MenuItem.IsEnabledProperty, BindingInsertText);
contextMenu.Items.Add(menuItemPaste);
this.ContextMenu = contextMenu;
}
void ButtonOpenFile_Click(object sender, RoutedEventArgs e)
{
string s = Assembly.GetExecutingAssembly().Location;
OpenFileDialog dialogOpen = new OpenFileDialog();
dialogOpen.AddExtension = true;
dialogOpen.CheckFileExists = true;
dialogOpen.CheckPathExists = true;
dialogOpen.Filter = "Текстовый объект(*.text)|*.text";
dialogOpen.InitialDirectory = s;
dialogOpen.Title = "Открыть текстовый объект";
if (dialogOpen.ShowDialog() == true)
{
using (FileStream fs = new FileStream(dialogOpen.FileName, FileMode.Open))
{
Document = (FlowDocument)XamlReader.Load(fs);
TextEditor.IsSave = true;
}
}
e.Handled = true;
}
void ButtonSaveFile_Click(object sender, RoutedEventArgs e)
{
string s = Assembly.GetExecutingAssembly().Location;
SaveFileDialog dialogSave = new SaveFileDialog();
dialogSave.AddExtension = true;
dialogSave.CheckPathExists = true;
dialogSave.Filter = "Текстовый объект(*.text)|*.text";
dialogSave.InitialDirectory = s;
dialogSave.OverwritePrompt = true;
dialogSave.Title = "Сохранить как...";
if (dialogSave.ShowDialog() == true)
{
using (FileStream fs = new FileStream(dialogSave.FileName, FileMode.Create))
{
XamlWriter.Save(this.Document, fs);
}
}
e.Handled = true;
}
private void ComboBoxItemFontSize(object sender, MouseEventArgs e)
{
PresentationSource source = PresentationSource.FromVisual(this);
double dpiX = 0, dpiY = 0;
if (source != null)
{
dpiX = 96.0 * source.CompositionTarget.TransformToDevice.M11;
dpiY = 96.0 * source.CompositionTarget.TransformToDevice.M22;
}
double d = dpiX / 72;
double dText;
if (e.Source is Border)
{
dText = (double)((ContentPresenter)((Border)e.Source).Child).Content;
}
else
{
dText = (double)((ContentPresenter)e.Source).Content;
}
if (!Selection.IsEmpty)
{
Selection.ApplyPropertyValue(Inline.FontSizeProperty, dText * d);
ComboBoxFontSize.Text = dText.ToString();
}
else
{
TextPointer textPoint = CaretPosition;
startTextPointer = null;
endTextPointer = null;
TextElement textElement = null;
if (CaretPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.None)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
this.Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}));
return;
}
else if (CaretPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.ElementStart)
{
textElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Backward);
if (textElement is Paragraph)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
this.Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}));
return;
}
else if (textElement is ListItem)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
this.Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}));
return;
}
}
else if (CaretPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.ElementEnd)
{
textElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Backward);
if (textElement is LineBreak)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
this.Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}));
return;
}
}
if (textPoint.GetTextRunLength(LogicalDirection.Backward) > 0) // Если позади каретки в текстовом элементе есть текст
{
TextPointer textPointer = textPoint.GetNextContextPosition(LogicalDirection.Backward);
Run run = (Run)textPointer.GetAdjacentElement(LogicalDirection.Backward);
TextElement nextBackTextElement = (TextElement)run.ElementStart.GetAdjacentElement(LogicalDirection.Backward);
int i = CaretPosition.GetTextRunLength(LogicalDirection.Backward);
TextRange textRange = new TextRange(textPointer, CaretPosition);
int index = textRange.Text.LastIndexOfAny(new char[] { ' ', ',', '.', '?', '!', ':', ';' });
if (index != -1)
{
if (textRange.Text[i - 1] != ' ' && textRange.Text[i - 1] != ',' && textRange.Text[i - 1] != '.' && textRange.Text[i - 1] != '?' && textRange.Text[i - 1] != '!' && textRange.Text[i - 1] != ':' && textRange.Text[i - 1] != ';')
{
startTextPointer = CaretPosition.GetPositionAtOffset(index + 1 - i);
}
else
{
startTextPointer = null;
}
}
else
{
IsText = true;
StartTextPointer(nextBackTextElement);
}
}
else
{
IsTextNull = true;
TextElement nextBackTextElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Backward);
if (nextBackTextElement is Run)
{
nextBackTextElement = (TextElement)nextBackTextElement.ElementStart.GetAdjacentElement(LogicalDirection.Backward);
}
StartTextPointer(nextBackTextElement);
}
IsTextNull = false;
IsText = false;
if (textPoint.GetTextRunLength(LogicalDirection.Forward) > 0) // Если в текстовом элементе впереди каретки есть текст
{
TextPointer textPointer = textPoint.GetNextContextPosition(LogicalDirection.Forward);
Run run = (Run)textPointer.GetAdjacentElement(LogicalDirection.Forward);
TextElement nextForwardTextElement = (TextElement)run.ElementEnd.GetAdjacentElement(LogicalDirection.Forward);
int i = CaretPosition.GetTextRunLength(LogicalDirection.Forward);
TextRange textRange = new TextRange(CaretPosition, textPointer);
int index = textRange.Text.IndexOfAny(new char[] { ' ', ',', '.', '?', '!', ':', ';' });
if (index != -1)
{
if (textRange.Text[0] != ' ' && textRange.Text[0] != ',' && textRange.Text[0] != '.' && textRange.Text[0] != '?' && textRange.Text[0] != '!' && textRange.Text[0] != ':' && textRange.Text[0] != ';')
{
endTextPointer = CaretPosition.GetPositionAtOffset(index);
}
else
{
endTextPointer = null;
}
}
else
{
IsText = true;
EndTextPointer(nextForwardTextElement);
}
}
else
{
IsTextNull = true;
TextElement nextForwardTextElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Forward);
if (nextForwardTextElement is Run)
{
nextForwardTextElement = (TextElement)nextForwardTextElement.ElementEnd.GetAdjacentElement(LogicalDirection.Forward);
}
EndTextPointer(nextForwardTextElement);
}
IsText = false;
IsTextNull = false;
if (startTextPointer != null && endTextPointer != null)
{
TextRange textRange = new TextRange(startTextPointer, endTextPointer);
textRange.ApplyPropertyValue(Inline.FontSizeProperty, dText * d);
ComboBoxFontSize.Text = dText.ToString();
}
else
{
if (dText != Run.FontSize / d)
{
IsCreateRunSize = true;
CreateRunTextPointer = CaretPosition;
}
else
{
IsCreateRunSize = false;
}
}
}
this.Dispatcher.BeginInvoke(DispatcherPriority.Background, new Action(() =>
{
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}));
}
private void ComboBoxFontSizePreviewKeyDown(object sender, RoutedEventArgs e)
{
if (Keyboard.IsKeyDown(Key.Escape))
{
e.Handled = true;
ComboBoxFontSize.Text = CorrectFontSize.ToString();
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}
else if (Keyboard.IsKeyDown(Key.Enter))
{
string s = FontSizeTextBox.Text;
e.Handled = true;
double d;
if (double.TryParse(FontSizeTextBox.Text, out d))
{
if (d > 200)
{
ComboBoxFontSize.Text = CorrectFontSize.ToString();
MessageBox.Show("Размер шрифта не может быть больше 200", "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
return;
}
else if (d < 1)
{
ComboBoxFontSize.Text = CorrectFontSize.ToString();
MessageBox.Show("Размер шрифта не может быть меньше 1", "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
return;
}
}
else
{
ComboBoxFontSize.Text = CorrectFontSize.ToString();
MessageBox.Show("Неверный формат числа", "Ошибка", MessageBoxButton.OK, MessageBoxImage.Error);
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
return;
}
PresentationSource source = PresentationSource.FromVisual(this);
double dpiX = 0, dpiY = 0;
if (source != null)
{
dpiX = 96.0 * source.CompositionTarget.TransformToDevice.M11;
dpiY = 96.0 * source.CompositionTarget.TransformToDevice.M22;
}
d = dpiX / 72;
double dText = double.Parse(ComboBoxFontSize.Text);
if (!Selection.IsEmpty)
{
Selection.ApplyPropertyValue(Inline.FontSizeProperty, dText * d);
}
else
{
TextPointer textPoint = CaretPosition;
startTextPointer = null;
endTextPointer = null;
if (Selection.IsEmpty)
{
TextElement textElement = null;
if (CaretPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.None)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
return;
}
else if (CaretPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.ElementStart)
{
textElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Backward);
if (textElement is Paragraph)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
return;
}
else if (textElement is ListItem)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
return;
}
}
else if (CaretPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.ElementEnd)
{
textElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Backward);
if (textElement is LineBreak)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
return;
}
}
if (textPoint.GetTextRunLength(LogicalDirection.Backward) > 0) // Если позади каретки в текстовом элементе есть текст
{
TextPointer textPointer = textPoint.GetNextContextPosition(LogicalDirection.Backward);
Run run = (Run)textPointer.GetAdjacentElement(LogicalDirection.Backward);
TextElement nextBackTextElement = (TextElement)run.ElementStart.GetAdjacentElement(LogicalDirection.Backward);
int i = CaretPosition.GetTextRunLength(LogicalDirection.Backward);
TextRange textRange = new TextRange(textPointer, CaretPosition);
int index = textRange.Text.LastIndexOfAny(new char[] { ' ', ',', '.', '?', '!', ':', ';' });
if (index != -1)
{
if (textRange.Text[i - 1] != ' ' && textRange.Text[i - 1] != ',' && textRange.Text[i - 1] != '.' && textRange.Text[i - 1] != '?' && textRange.Text[i - 1] != '!' && textRange.Text[i - 1] != ':' && textRange.Text[i - 1] != ';')
{
startTextPointer = CaretPosition.GetPositionAtOffset(index + 1 - i);
}
else
{
startTextPointer = null;
}
}
else
{
IsText = true;
StartTextPointer(nextBackTextElement);
}
}
else
{
IsTextNull = true;
TextElement nextBackTextElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Backward);
if (nextBackTextElement is Run)
{
nextBackTextElement = (TextElement)nextBackTextElement.ElementStart.GetAdjacentElement(LogicalDirection.Backward);
}
StartTextPointer(nextBackTextElement);
}
IsTextNull = false;
IsText = false;
if (textPoint.GetTextRunLength(LogicalDirection.Forward) > 0) // Если в текстовом элементе впереди каретки есть текст
{
TextPointer textPointer = textPoint.GetNextContextPosition(LogicalDirection.Forward);
Run run = (Run)textPointer.GetAdjacentElement(LogicalDirection.Forward);
TextElement nextForwardTextElement = (TextElement)run.ElementEnd.GetAdjacentElement(LogicalDirection.Forward);
int i = CaretPosition.GetTextRunLength(LogicalDirection.Forward);
TextRange textRange = new TextRange(CaretPosition, textPointer);
int index = textRange.Text.IndexOfAny(new char[] { ' ', ',', '.', '?', '!', ':', ';' });
if (index != -1)
{
if (textRange.Text[0] != ' ' && textRange.Text[0] != ',' && textRange.Text[0] != '.' && textRange.Text[0] != '?' && textRange.Text[0] != '!' && textRange.Text[0] != ':' && textRange.Text[0] != ';')
{
endTextPointer = CaretPosition.GetPositionAtOffset(index);
}
else
{
endTextPointer = null;
}
}
else
{
IsText = true;
EndTextPointer(nextForwardTextElement);
}
}
else
{
IsTextNull = true;
TextElement nextForwardTextElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Forward);
if (nextForwardTextElement is Run)
{
nextForwardTextElement = (TextElement)nextForwardTextElement.ElementEnd.GetAdjacentElement(LogicalDirection.Forward);
}
EndTextPointer(nextForwardTextElement);
}
IsText = false;
IsTextNull = false;
if (startTextPointer != null && endTextPointer != null)
{
TextRange textRange = new TextRange(startTextPointer, endTextPointer);
textRange.ApplyPropertyValue(Inline.FontSizeProperty, dText * d);
}
else
{
if (dText != Run.FontSize / d)
{
IsCreateRunSize = true;
CreateRunTextPointer = CaretPosition;
}
else
{
IsCreateRunSize = false;
}
}
}
}
this.MoveFocus(new TraversalRequest(FocusNavigationDirection.First));
}
}
private void FontSizeTextBoxPaste(object sender, ExecutedRoutedEventArgs e)
{
string pattern = @"^\d{1,3}(?:\.\d{0,1})?$";
string s;
if (FontSizeTextBox.SelectionLength > 0)
{
s = FontSizeTextBox.Text.Remove(FontSizeTextBox.SelectionStart, FontSizeTextBox.SelectionLength);
s = s.Insert(FontSizeTextBox.SelectionStart, Clipboard.GetText());
}
else
{
s = FontSizeTextBox.Text.Insert(FontSizeTextBox.Text.Length, Clipboard.GetText());
}
double d = 0;
if (!Regex.IsMatch(s, pattern))
{
e.Handled = true;
}
else if (double.TryParse(s, out d))
{
if (d < 1 || d > 200)
{
e.Handled = true;
}
else
{
FontSizeTextBox.Paste();
}
}
}
private void IgnoreCut(object sender, ExecutedRoutedEventArgs e)
{
e.Handled = true;
}
void FontSizeTextBox_PreviewTextInput(object sender, TextCompositionEventArgs e)
{
string pattern = @"^\d{1,3}(?:\.\d{0,1})?$";
string s;
if (FontSizeTextBox.SelectionLength > 0)
{
s = FontSizeTextBox.Text.Remove(FontSizeTextBox.SelectionStart, FontSizeTextBox.SelectionLength);
s = s.Insert(FontSizeTextBox.SelectionStart, e.Text);
}
else
{
s = FontSizeTextBox.Text.Insert(FontSizeTextBox.Text.Length, e.Text);
}
double d = 0;
if (!Regex.IsMatch(s, pattern))
{
e.Handled = true;
}
if (double.TryParse(s, out d))
{
if (d < 1 || d > 200)
{
e.Handled = true;
}
}
}
void FontSizeDown_Click(object sender, RoutedEventArgs e)
{
if (!Selection.IsEmpty)
{
object obj = Selection.GetPropertyValue(Inline.FontSizeProperty);
if (obj != DependencyProperty.UnsetValue)
{
PresentationSource source = PresentationSource.FromVisual(this);
double dpiX = 0, dpiY = 0;
if (source != null)
{
dpiX = 96.0 * source.CompositionTarget.TransformToDevice.M11;
dpiY = 96.0 * source.CompositionTarget.TransformToDevice.M22;
}
double d = (double)obj;
double d2 = dpiX / 72;
double fontSizePixel = d / d2;
fontSizePixel = fontSizePixel - 1;
if (fontSizePixel >= 1)
{
Selection.ApplyPropertyValue(Inline.FontSizeProperty, fontSizePixel * d2);
ComboBoxFontSize.Text = fontSizePixel.ToString();
}
}
}
else
{
TextPointer textPoint = CaretPosition;
startTextPointer = null;
endTextPointer = null;
if (Selection.IsEmpty)
{
TextElement textElement = null;
if (CaretPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.None)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
return;
}
else if (CaretPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.ElementStart)
{
textElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Backward);
if (textElement is Paragraph)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
return;
}
else if (textElement is ListItem)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
return;
}
}
else if (CaretPosition.GetPointerContext(LogicalDirection.Backward) == TextPointerContext.ElementEnd)
{
textElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Backward);
if (textElement is LineBreak)
{
IsCreateRunNull = true;
CreateRunTextPointer = CaretPosition;
return;
}
}
if (textPoint.GetTextRunLength(LogicalDirection.Backward) > 0) // Если позади каретки в текстовом элементе есть текст
{
TextPointer textPointer = textPoint.GetNextContextPosition(LogicalDirection.Backward);
Run run = (Run)textPointer.GetAdjacentElement(LogicalDirection.Backward);
TextElement nextBackTextElement = (TextElement)run.ElementStart.GetAdjacentElement(LogicalDirection.Backward);
int i = CaretPosition.GetTextRunLength(LogicalDirection.Backward);
TextRange textRange = new TextRange(textPointer, CaretPosition);
int index = textRange.Text.LastIndexOfAny(new char[] { ' ', ',', '.', '?', '!', ':', ';' });
if (index != -1)
{
if (textRange.Text[i - 1] != ' ' && textRange.Text[i - 1] != ',' && textRange.Text[i - 1] != '.' && textRange.Text[i - 1] != '?' && textRange.Text[i - 1] != '!' && textRange.Text[i - 1] != ':' && textRange.Text[i - 1] != ';')
{
startTextPointer = CaretPosition.GetPositionAtOffset(index + 1 - i);
}
else
{
startTextPointer = null;
}
}
else
{
IsText = true;
StartTextPointer(nextBackTextElement);
}
}
else
{
IsTextNull = true;
TextElement nextBackTextElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Backward);
if (nextBackTextElement is Run)
{
nextBackTextElement = (TextElement)nextBackTextElement.ElementStart.GetAdjacentElement(LogicalDirection.Backward);
}
StartTextPointer(nextBackTextElement);
}
IsTextNull = false;
IsText = false;
if (textPoint.GetTextRunLength(LogicalDirection.Forward) > 0) // Если в текстовом элементе впереди каретки есть текст
{
TextPointer textPointer = textPoint.GetNextContextPosition(LogicalDirection.Forward);
Run run = (Run)textPointer.GetAdjacentElement(LogicalDirection.Forward);
TextElement nextForwardTextElement = (TextElement)run.ElementEnd.GetAdjacentElement(LogicalDirection.Forward);
int i = CaretPosition.GetTextRunLength(LogicalDirection.Forward);
TextRange textRange = new TextRange(CaretPosition, textPointer);
int index = textRange.Text.IndexOfAny(new char[] { ' ', ',', '.', '?', '!', ':', ';' });
if (index != -1)
{
if (textRange.Text[0] != ' ' && textRange.Text[0] != ',' && textRange.Text[0] != '.' && textRange.Text[0] != '?' && textRange.Text[0] != '!' && textRange.Text[0] != ':' && textRange.Text[0] != ';')
{
endTextPointer = CaretPosition.GetPositionAtOffset(index);
}
else
{
endTextPointer = null;
}
}
else
{
IsText = true;
EndTextPointer(nextForwardTextElement);
}
}
else
{
IsTextNull = true;
TextElement nextForwardTextElement = (TextElement)CaretPosition.GetAdjacentElement(LogicalDirection.Forward);
if (nextForwardTextElement is Run)
{
nextForwardTextElement = (TextElement)nextForwardTextElement.ElementEnd.GetAdjacentElement(LogicalDirection.Forward);
}
EndTextPointer(nextForwardTextElement);
}
IsText = false;
IsTextNull = false;
if (startTextPointer != null && endTextPointer != null)
{
TextRange textRange = new TextRange(startTextPointer, endTextPointer);
object obj = textRange.GetPropertyValue(Inline.FontSizeProperty);
if (obj != DependencyProperty.UnsetValue)
{
PresentationSource source = PresentationSource.FromVisual(this);
double dpiX = 0, dpiY = 0;
if (source != null)
{
dpiX = 96.0 * source.CompositionTarget.TransformToDevice.M11;
dpiY = 96.0 * source.CompositionTarget.TransformToDevice.M22;
}
double d = dpiX / 72;
if (CorrectFontSize - 1 >= 1)
{
Selection.ApplyPropertyValue(Inline.FontSizeProperty, (CorrectFontSize - 1) * d);
CorrectFontSize = CorrectFontSize - 1;
ComboBoxFontSize.Text = CorrectFontSize.ToString();
}
}
}