CPDFScalingUI.xaml.cs 4.7 KB

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  1. using compdfkit_tools.Common;
  2. using ComPDFKitViewer.PdfViewer;
  3. using System;
  4. using System.Collections.Generic;
  5. using System.ComponentModel;
  6. using System.Linq;
  7. using System.Runtime.CompilerServices;
  8. using System.Text;
  9. using System.Text.RegularExpressions;
  10. using System.Threading.Tasks;
  11. using System.Windows;
  12. using System.Windows.Controls;
  13. using System.Windows.Data;
  14. using System.Windows.Documents;
  15. using System.Windows.Input;
  16. using System.Windows.Media;
  17. using System.Windows.Media.Imaging;
  18. using System.Windows.Navigation;
  19. using System.Windows.Shapes;
  20. using System.Xml.Linq;
  21. using static System.Net.Mime.MediaTypeNames;
  22. namespace compdfkit_tools.PDFControlUI
  23. {
  24. /// <summary>
  25. /// PDFScalingControl.xaml 的交互逻辑
  26. /// </summary>
  27. public partial class CPDFScalingUI : UserControl, INotifyPropertyChanged
  28. {
  29. public CPDFViewer PDFView { get; set; }
  30. private string regixString = "[^0-9]+";
  31. private int _scale = 100;
  32. public int Scale
  33. {
  34. get { return _scale; }
  35. set
  36. {
  37. if (_scale != value)
  38. {
  39. _scale = value;
  40. OnPropertyChanged(nameof(Scale));
  41. }
  42. }
  43. }
  44. private int[] zoomLevelList = { 10, 25, 50, 100, 150, 200, 300, 400, 500, 1000 };
  45. public event EventHandler<string> SetScaleEvent;
  46. public event EventHandler<string> SetPresetScaleEvent;
  47. public event EventHandler ScaleIncreaseEvent;
  48. public event EventHandler ScaleDecreaseEvent;
  49. public CPDFScalingUI()
  50. {
  51. InitializeComponent();
  52. DataContext = this;
  53. BindZoomLevel();
  54. }
  55. private void DropDownNumberBoxControl_SetPresetEvent(object sender, string e)
  56. {
  57. SetPresetScaleEvent?.Invoke(this, e);
  58. }
  59. private void BindZoomLevel()
  60. {
  61. ZoomComboBox.Items.Add(new ComboBoxItem() { Content = "Actual size" });
  62. ZoomComboBox.Items.Add(new ComboBoxItem() { Content = "Suitable width" });
  63. ZoomComboBox.Items.Add(new ComboBoxItem() { Content = "Single page size" });
  64. foreach (double zoomLevel in zoomLevelList)
  65. {
  66. ComboBoxItem zoomItem = new ComboBoxItem();
  67. zoomItem.Content = zoomLevel;
  68. ZoomComboBox.Items.Add(zoomItem);
  69. }
  70. }
  71. private void ZoomComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
  72. {
  73. ComboBoxItem selectItem = ZoomComboBox.SelectedItem as ComboBoxItem;
  74. SetPresetScaleEvent?.Invoke(this, selectItem.Content.ToString());
  75. }
  76. public void SetZoomTextBoxText(string value)
  77. {
  78. ZoomTextBox.Text = value;
  79. }
  80. private void DropDownNumberBoxControl_InputEnterEvent(object sender, string e)
  81. {
  82. SetScaleEvent?.Invoke(this,e);
  83. }
  84. private void ScaleDecreaseButton_Click(object sender, RoutedEventArgs e)
  85. {
  86. ScaleDecreaseEvent?.Invoke(this,e);
  87. }
  88. private void ScaleIncreaseButton_Click(object sender, RoutedEventArgs e)
  89. {
  90. ScaleIncreaseEvent?.Invoke(this,e);
  91. }
  92. public event PropertyChangedEventHandler PropertyChanged;
  93. protected void OnPropertyChanged(string propertyName)
  94. {
  95. PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
  96. }
  97. private void TextBox_PreviewTextInput(object sender, TextCompositionEventArgs e)
  98. {
  99. e.Handled = new Regex(regixString).IsMatch(e.Text);
  100. }
  101. private void TextBox_PreviewKeyDown(object sender, KeyEventArgs e)
  102. {
  103. if (e.Key == Key.Enter)
  104. {
  105. SetScaleEvent?.Invoke(sender, ZoomTextBox.Text);
  106. }
  107. if ((e.KeyStates == Keyboard.GetKeyStates(Key.LeftCtrl) || e.KeyStates == Keyboard.GetKeyStates(Key.RightCtrl)) && e.KeyStates == Keyboard.GetKeyStates(Key.V))
  108. e.Handled = true;
  109. else
  110. e.Handled = false;
  111. }
  112. private void TextBox_TextChanged(object sender, TextChangedEventArgs e)
  113. {
  114. if (!string.IsNullOrEmpty(ZoomTextBox.Text))
  115. {
  116. int num;
  117. int.TryParse(ZoomTextBox.Text, out num);
  118. if (num > 1000)
  119. {
  120. ZoomTextBox.Text = 1000.ToString();
  121. }
  122. if (num < 1)
  123. {
  124. ZoomTextBox.Text = 1.ToString();
  125. }
  126. }
  127. }
  128. private void ZoomTextBox_LostFocus(object sender, RoutedEventArgs e)
  129. {
  130. SetScaleEvent?.Invoke(sender, ZoomTextBox.Text);
  131. }
  132. }
  133. }