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+using System;
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+using System.Collections.Generic;
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+using System.Linq;
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+using System.Text;
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+using System.Threading.Tasks;
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+using System.Windows;
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+using System.Windows.Controls;
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+using System.Windows.Media;
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+
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+
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+namespace Venus_Themes.CustomControls
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+{
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+ public class Pagination : Control
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+ {
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+ private Venus_Themes.UserControls.PathButton _btnPrev = null;
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+ private Button _btnOne = null;
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+ private Button _btnDotPrev = null;
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+ private Button _btnCenterOne = null;
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+ private Button _btnCenterTwo = null;
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+ private Button _btnCenterThree = null;
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+ private Button _btnCenterFour = null;
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+ private Button _btnCenterFive = null;
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+ private Button _btnDotNext = null;
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+ private Button _btnLast = null;
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+ private Venus_Themes.UserControls.PathButton _btnNext = null;
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+ public Action<int> CurrentPageChanged;
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+ public int PageCount
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+ {
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+ get { return (int)GetValue(PageCountProperty); }
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+ set
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+ {
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+ SetValue(PageCountProperty, value);
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+ }
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+ }
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+ public static readonly DependencyProperty PageCountProperty =
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+ DependencyProperty.Register("PageCount", typeof(int), typeof(Pagination), new PropertyMetadata(1, (d, e) =>
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+ {
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+ if (!(d is Pagination pagination)) return;
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+ var page = (int)e.NewValue;
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+ pagination.IsSimple = page < 6;
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+ }));
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+ public bool IsSimple
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+ {
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+ get { return (bool)GetValue(IsSimpleProperty); }
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+ set { SetValue(IsSimpleProperty, value); }
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+ }
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+ public static readonly DependencyProperty IsSimpleProperty =
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+ DependencyProperty.Register("IsSimple", typeof(bool), typeof(Pagination), new PropertyMetadata(false));
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+
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+
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+ public int CurrentPage
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+ {
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+ get { return (int)GetValue(CurrentPageProperty); }
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+ set
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+ {
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+ SetValue(CurrentPageProperty, value);
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+ CurrentPageChanged(value);
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+ }
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+ }
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+ public static readonly DependencyProperty CurrentPageProperty =
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+ DependencyProperty.Register("CurrentPage", typeof(int), typeof(Pagination), new PropertyMetadata(1, (d, e) =>
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+ {
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+ if (!(d is Pagination pagination)) return;
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+ if (pagination.PageCount > 5)
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+ {
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+ pagination.UpdateControl();
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+ }
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+ else
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+ {
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+ pagination.UpdateControlSimple();
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+ }
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+ }));
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+ public override void OnApplyTemplate()
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+ {
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+ base.OnApplyTemplate();
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+
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+
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+ if (PageCount > 5)
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+ {
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+ InitControls();
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+ }
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+ else
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+ {
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+ InitControlsSimple();
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+ }
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+ }
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+ private List<Button> _simpleButtons = new List<Button>();
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+ private void InitControlsSimple()
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+ {
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+ _btnPrev = GetTemplateChild("btnPrev") as Venus_Themes.UserControls.PathButton;
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+ if (_btnPrev == null)
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+ {
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+ return;
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+ }
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+ _btnCenterOne = GetTemplateChild("btnCenterOne") as Button;
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+ _btnCenterTwo = GetTemplateChild("btnCenterTwo") as Button;
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+ _btnCenterThree = GetTemplateChild("btnCenterThree") as Button;
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+ _btnCenterFour = GetTemplateChild("btnCenterFour") as Button;
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+ _btnCenterFive = GetTemplateChild("btnCenterFive") as Button;
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+ _btnNext = GetTemplateChild("btnNext") as Venus_Themes.UserControls.PathButton;
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+ _simpleButtons.Clear();
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+ _simpleButtons.Add(_btnCenterOne);
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+ _simpleButtons.Add(_btnCenterTwo);
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+ _simpleButtons.Add(_btnCenterThree);
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+ _simpleButtons.Add(_btnCenterFour);
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+ _simpleButtons.Add(_btnCenterFive);
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+ BindClickSimple();
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+ UpdateControlSimple();
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+ }
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+
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+
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+ private void UpdateControlSimple()
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+ {
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+ if (_btnCenterOne == null)
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+ {
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+ return;
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+ }
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+ _btnCenterOne.Visibility = PageCount >= 1 ? Visibility.Visible : Visibility.Collapsed;
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+ _btnCenterTwo.Visibility = PageCount >= 2 ? Visibility.Visible : Visibility.Collapsed;
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+ _btnCenterThree.Visibility = PageCount >= 3 ? Visibility.Visible : Visibility.Collapsed;
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+ _btnCenterFour.Visibility = PageCount >= 4 ? Visibility.Visible : Visibility.Collapsed;
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+ _btnCenterFive.Visibility = PageCount >= 5 ? Visibility.Visible : Visibility.Collapsed;
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+ _btnPrev.IsEnabled = CurrentPage > 1;
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+ _btnNext.IsEnabled = CurrentPage < PageCount;
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+ _btnCenterOne.Background = _btnCenterTwo.Background = _btnCenterThree.Background = _btnCenterFour.Background = _btnCenterFive.Background = Brushes.LightBlue;
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+ _simpleButtons[CurrentPage - 1].Background = Brushes.Green;
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+ }
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+
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+
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+ private void BindClickSimple()
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+ {
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+ _btnPrev.Click += (s, e) => CurrentPage -= 1;
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+ _btnCenterOne.Click += (s, e) => CurrentPage = 1;
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+ _btnCenterTwo.Click += (s, e) => CurrentPage = 2;
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+ _btnCenterThree.Click += (s, e) => CurrentPage = 3;
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+ _btnCenterFour.Click += (s, e) => CurrentPage = 4;
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+ _btnCenterFive.Click += (s, e) => CurrentPage = 5;
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+ _btnNext.Click += (s, e) => CurrentPage += 1;
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+ }
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+
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+
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+ private void InitControls()
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+ {
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+ _btnPrev = GetTemplateChild("btnPrev") as Venus_Themes.UserControls.PathButton;
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+ _btnOne = GetTemplateChild("btnOne") as Button;
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+ _btnDotPrev = GetTemplateChild("btnDotPrev") as Button;
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+ _btnCenterOne = GetTemplateChild("btnCenterOne") as Button;
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+ _btnCenterTwo = GetTemplateChild("btnCenterTwo") as Button;
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+ _btnCenterThree = GetTemplateChild("btnCenterThree") as Button;
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+ _btnCenterFour = GetTemplateChild("btnCenterFour") as Button;
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+ _btnCenterFive = GetTemplateChild("btnCenterFive") as Button;
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+ _btnDotNext = GetTemplateChild("btnDotNext") as Button;
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+ _btnLast = GetTemplateChild("btnLast") as Button;
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+ _btnNext = GetTemplateChild("btnNext") as Venus_Themes.UserControls.PathButton;
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+ BindClick();
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+ UpdateControl();
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+ }
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+ private void BindClick()
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+ {
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+ _btnPrev.Click += (s, e) => SetIndex(-1);
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+ _btnOne.Click += (s, e) => SetIndex(1 - CurrentPage);
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+ _btnDotPrev.Click += (s, e) => SetIndex(-3);
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+ _btnCenterOne.Click += (s, e) => SetIndex(-2);
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+ _btnCenterTwo.Click += (s, e) => SetIndex(-1);
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+ _btnCenterFour.Click += (s, e) => SetIndex(1);
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+ _btnCenterFive.Click += (s, e) => SetIndex(2);
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+ _btnDotNext.Click += (s, e) => SetIndex(3);
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+ _btnLast.Click += (s, e) => SetIndex(PageCount - CurrentPage);
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+ _btnNext.Click += (s, e) => SetIndex(1);
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+ }
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+ public void SetIndex(int page)
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+ {
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+ if (page < 0)
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+ {
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+ if (CurrentPage + page > 0)
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+ {
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+ CurrentPage += page;
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+ }
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+ }
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+ else if (page > 0)
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+ {
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+ if (CurrentPage + page <= PageCount)
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+ {
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+ CurrentPage += page;
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+ }
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+ }
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+ }
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+
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+
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+ private void UpdateControl()
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+ {
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+ _btnPrev.IsEnabled = CurrentPage > 1;
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+ _btnOne.Visibility = CurrentPage < 4 ? Visibility.Collapsed : Visibility.Visible;
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+ _btnDotPrev.Visibility = CurrentPage < 4 ? Visibility.Collapsed : Visibility.Visible;
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+ _btnCenterOne.Visibility = CurrentPage != 3 && CurrentPage != PageCount ? Visibility.Collapsed : Visibility.Visible;
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+ _btnCenterTwo.Visibility = CurrentPage == 1 || (PageCount - CurrentPage) == 2 ? Visibility.Collapsed : Visibility.Visible;
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+ _btnCenterFour.Visibility = CurrentPage == 3 || CurrentPage == PageCount ? Visibility.Collapsed : Visibility.Visible;
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+ _btnCenterFive.Visibility = CurrentPage != 1 && (PageCount - CurrentPage) != 2 ? Visibility.Collapsed : Visibility.Visible;
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+ _btnDotNext.Visibility = PageCount - CurrentPage < 3 ? Visibility.Collapsed : Visibility.Visible;
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+ _btnLast.Visibility = PageCount - CurrentPage < 3 ? Visibility.Collapsed : Visibility.Visible;
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+ _btnNext.IsEnabled = CurrentPage != PageCount;
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+
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+
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+ _btnOne.Content = 1;
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+ _btnCenterOne.Content = CurrentPage - 2;
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+ _btnCenterTwo.Content = CurrentPage - 1;
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+ _btnCenterThree.Content = CurrentPage;
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+ _btnCenterFour.Content = CurrentPage + 1;
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+ _btnCenterFive.Content = CurrentPage + 2;
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+ _btnLast.Content = PageCount;
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+ }
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+ }
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+}
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