feat: make CurrentPage independent.

This commit is contained in:
rabbitism
2024-03-16 16:23:19 +08:00
parent 31cd8a4490
commit 5039d3d5fe
4 changed files with 79 additions and 63 deletions

View File

@@ -35,6 +35,7 @@
MinWidth="0"
HorizontalContentAlignment="Stretch"
VerticalContentAlignment="Stretch"
ShowButtonSpinner="{TemplateBinding ShowButtonSpinner}"
AllowSpin="{TemplateBinding AllowSpin}"
Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"

View File

@@ -12,7 +12,7 @@
<Setter Property="Template">
<ControlTemplate TargetType="u:Pagination">
<StackPanel Orientation="Horizontal">
<u:PaginationButton Name="{x:Static u:Pagination.PART_PreviousButton}">
<u:PaginationButton u:DisabledAdorner.IsEnabled="True" Name="{x:Static u:Pagination.PART_PreviousButton}">
<PathIcon
Width="12"
Height="12"
@@ -20,7 +20,7 @@
Foreground="{DynamicResource PaginationButtonIconForeground}" />
</u:PaginationButton>
<StackPanel Name="{x:Static u:Pagination.PART_ButtonPanel}" Orientation="Horizontal" />
<u:PaginationButton Name="{x:Static u:Pagination.PART_NextButton}">
<u:PaginationButton u:DisabledAdorner.IsEnabled="True" Name="{x:Static u:Pagination.PART_NextButton}">
<PathIcon
Width="12"
Height="12"
@@ -114,9 +114,9 @@
</Style>
</Style>
<Style Selector="^:selected">
<Setter Property="u:PaginationButton.Background" Value="{DynamicResource PaginationButtonSelectedBackground}" />
<Setter Property="u:PaginationButton.Foreground" Value="{DynamicResource PaginationButtonSelectedForeground}" />
<Setter Property="u:PaginationButton.FontWeight" Value="600" />
<Setter Property="Background" Value="{DynamicResource PaginationButtonSelectedBackground}" />
<Setter Property="Foreground" Value="{DynamicResource PaginationButtonSelectedForeground}" />
<Setter Property="FontWeight" Value="600" />
</Style>
</ControlTheme>

View File

@@ -110,6 +110,15 @@ public abstract class NumericUpDown : TemplatedControl, IClearControl
set => SetValue(AllowSpinProperty, value);
}
public static readonly StyledProperty<bool> ShowButtonSpinnerProperty =
ButtonSpinner.ShowButtonSpinnerProperty.AddOwner<NumericUpDown>();
public bool ShowButtonSpinner
{
get => GetValue(ShowButtonSpinnerProperty);
set => SetValue(ShowButtonSpinnerProperty, value);
}
public event EventHandler<SpinEventArgs>? Spinned;
static NumericUpDown()

View File

@@ -5,6 +5,8 @@ using Avalonia.Controls.Metadata;
using Avalonia.Controls.Primitives;
using Avalonia.Interactivity;
using Avalonia.Styling;
using Avalonia.Utilities;
using Irihi.Avalonia.Shared.Helpers;
namespace Ursa.Controls;
@@ -28,27 +30,11 @@ public class Pagination: TemplatedControl
private StackPanel? _buttonPanel;
private readonly PaginationButton[] _buttons = new PaginationButton[7];
private ComboBox? _sizeChangerComboBox;
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
if (_previousButton != null) _previousButton.Click -= OnButtonClick;
if (_nextButton != null) _nextButton.Click -= OnButtonClick;
_previousButton = e.NameScope.Find<PaginationButton>(PART_PreviousButton);
_nextButton = e.NameScope.Find<PaginationButton>(PART_NextButton);
_buttonPanel = e.NameScope.Find<StackPanel>(PART_ButtonPanel);
_sizeChangerComboBox = e.NameScope.Find<ComboBox>(PART_SizeChangerComboBox);
if (_previousButton != null) _previousButton.Click += OnButtonClick;
if (_nextButton != null) _nextButton.Click += OnButtonClick;
InitializePanelButtons();
UpdateButtons(0);
}
public static readonly StyledProperty<int> CurrentPageProperty = AvaloniaProperty.Register<Pagination, int>(
public static readonly StyledProperty<int?> CurrentPageProperty = AvaloniaProperty.Register<Pagination, int?>(
nameof(CurrentPage));
public int CurrentPage
public int? CurrentPage
{
get => GetValue(CurrentPageProperty);
set => SetValue(CurrentPageProperty, value);
@@ -122,39 +108,57 @@ public class Pagination: TemplatedControl
public static readonly StyledProperty<bool> ShowQuickJumpProperty = AvaloniaProperty.Register<Pagination, bool>(
nameof(ShowQuickJump));
/// <summary>
/// This feature is not implemented yet.
/// </summary>
public bool ShowQuickJump
{
get => GetValue(ShowQuickJumpProperty);
set => SetValue(ShowQuickJumpProperty, value);
}
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
static Pagination()
{
base.OnPropertyChanged(change);
// When page size is updated, the selected current page must be updated.
if (change.Property == PageSizeProperty)
PageSizeProperty.Changed.AddClassHandler<Pagination, int>((pagination, args)=>pagination.OnPageSizeChanged(args));
CurrentPageProperty.Changed.AddClassHandler<Pagination, int?>((pagination, args) =>
pagination.UpdateButtonsByCurrentPage(args.NewValue.Value));
TotalCountProperty.Changed.AddClassHandler<Pagination, int>((pagination, args) =>
pagination.UpdateButtonsByCurrentPage(pagination.CurrentPage));
}
private void OnPageSizeChanged(AvaloniaPropertyChangedEventArgs<int> args)
{
int pageCount = TotalCount / args.NewValue.Value;
int residue = TotalCount % args.NewValue.Value;
if (residue > 0)
{
int oldPageSize = change.GetOldValue<int>();
int index = oldPageSize * CurrentPage;
UpdateButtons(index);
pageCount++;
}
else if (change.Property == TotalCountProperty || change.Property == CurrentPageProperty)
PageCount = pageCount;
if (CurrentPage > PageCount)
{
int index = PageSize * CurrentPage;
UpdateButtons(index);
CurrentPage = null;
}
UpdateButtonsByCurrentPage(CurrentPage);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
{
base.OnApplyTemplate(e);
Button.ClickEvent.AddHandler(OnButtonClick, _previousButton, _nextButton);
_previousButton = e.NameScope.Find<PaginationButton>(PART_PreviousButton);
_nextButton = e.NameScope.Find<PaginationButton>(PART_NextButton);
_buttonPanel = e.NameScope.Find<StackPanel>(PART_ButtonPanel);
_sizeChangerComboBox = e.NameScope.Find<ComboBox>(PART_SizeChangerComboBox);
Button.ClickEvent.AddHandler(OnButtonClick, _previousButton, _nextButton);
InitializePanelButtons();
UpdateButtonsByCurrentPage(0);
}
private void OnButtonClick(object? sender, RoutedEventArgs e)
{
if (Equals(sender, _previousButton))
{
AddCurrentPage(-1);
}
else
{
AddCurrentPage(1);
}
var diff = Equals(sender, _previousButton) ? -1 : 1;
AddCurrentPage(diff);
}
private void InitializePanelButtons()
@@ -166,7 +170,7 @@ public class Pagination: TemplatedControl
var button = new PaginationButton() { Page = i, IsVisible = true };
_buttonPanel.Children.Add(button);
_buttons![i - 1] = button;
button.Click+= OnPageButtonClick;
Button.ClickEvent.AddHandler(OnPageButtonClick, button);
}
}
@@ -191,30 +195,32 @@ public class Pagination: TemplatedControl
private void AddCurrentPage(int pageChange)
{
int newValue = CurrentPage + pageChange;
if (newValue <= 0) newValue = 1;
else if(newValue>=PageCount) newValue = PageCount;
CurrentPage = newValue;
int newValue = (CurrentPage ?? 0) + pageChange;
newValue = Clamp(newValue, 1, PageCount);
; SetCurrentValue(CurrentPageProperty, newValue);
}
private void UpdateButtons(int index)
private int Clamp(int value, int min, int max)
{
return value < min ? min : value > max ? max : value;
}
/// <summary>
/// Update Button Content and Visibility by current page.
/// </summary>
/// <param name="page"></param>
private void UpdateButtonsByCurrentPage(int? page)
{
if (_buttonPanel is null) return;
if (PageSize == 0) return;
int currentIndex = index;
int? currentPage = CurrentPage;
int pageCount = TotalCount / PageSize;
int residue = TotalCount % PageSize;
if (residue > 0)
{
pageCount++;
}
PageCount = pageCount;
int currentPage = currentIndex/ PageSize;
if (currentPage == 0) currentPage++;
if (pageCount <= 7)
{
@@ -237,9 +243,8 @@ public class Pagination: TemplatedControl
{
_buttons[i].IsVisible = true;
}
int mid = currentPage;
if (mid < 4) mid = 4;
else if (mid > pageCount - 3) mid = pageCount - 3;
int mid = currentPage ?? 0;
mid = Clamp(mid, 4, pageCount - 3);
_buttons[3].Page = mid;
_buttons[2].Page = mid - 1;
_buttons[4].Page = mid + 1;
@@ -247,7 +252,7 @@ public class Pagination: TemplatedControl
_buttons[6].Page = pageCount;
if(mid>4)
{
_buttons[1].SetStatus(0, false, true, false);
_buttons[1].SetStatus(-1, false, true, false);
}
else
{
@@ -255,7 +260,7 @@ public class Pagination: TemplatedControl
}
if(mid<pageCount-3)
{
_buttons[5].SetStatus(0, false, false, true);
_buttons[5].SetStatus(-1, false, false, true);
}
else
{
@@ -275,8 +280,9 @@ public class Pagination: TemplatedControl
}
}
CurrentPage = currentPage;
if (_previousButton != null) _previousButton.IsEnabled = CurrentPage > 1;
if( _nextButton!=null) _nextButton.IsEnabled = CurrentPage < PageCount;
PageCount = pageCount;
SetCurrentValue(CurrentPageProperty, currentPage);
if (_previousButton != null) _previousButton.IsEnabled = (CurrentPage??int.MaxValue) > 1;
if (_nextButton != null) _nextButton.IsEnabled = (CurrentPage ?? 0) < PageCount;
}
}