This commit is contained in:
TheXamlGuy
2024-10-10 23:03:07 +01:00
parent b1e239ab04
commit 4439e399fd
4 changed files with 227 additions and 237 deletions
@@ -0,0 +1,127 @@
<ResourceDictionary
xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:controls="using:Toolkit.UI.Controls.Avalonia">
<ResourceDictionary.ThemeDictionaries>
<ResourceDictionary x:Key="Light">
<StaticResource x:Key="ContentCropperThumbBackground" ResourceKey="AccentFillColorDefaultBrush" />
<StaticResource x:Key="ContentCropperThumbBrush" ResourceKey="ControlElevationBorderBrush" />
<StaticResource x:Key="ContentCropperOuterThumbBackground" ResourceKey="ControlSolidFillColorDefaultBrush" />
</ResourceDictionary>
<ResourceDictionary x:Key="Dark">
<StaticResource x:Key="ContentCropperThumbBackground" ResourceKey="AccentFillColorDefaultBrush" />
<StaticResource x:Key="ContentCropperThumbBrush" ResourceKey="ControlElevationBorderBrush" />
<StaticResource x:Key="ContentCropperOuterThumbBackground" ResourceKey="ControlSolidFillColorDefaultBrush" />
</ResourceDictionary>
</ResourceDictionary.ThemeDictionaries>
<CornerRadius x:Key="ContentCropperThumbCornerRadius">10</CornerRadius>
<x:Double x:Key="ContentCropperInnerThumbWidth">12</x:Double>
<x:Double x:Key="ContentCropperInnerThumbHeight">12</x:Double>
<x:Double x:Key="ContentCropperThumbWidth">18</x:Double>
<x:Double x:Key="ContentCropperThumbHeight">18</x:Double>
<ControlTheme x:Key="ContentCropperThumbStyle" TargetType="Thumb">
<Setter Property="BorderThickness" Value="1" />
<Setter Property="Background" Value="{DynamicResource ContentCropperThumbBackground}" />
<Setter Property="BorderBrush" Value="{DynamicResource ContentCropperThumbBrush}" />
<Setter Property="ClipToBounds" Value="False" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Border
Margin="-2"
Background="{DynamicResource ContentCropperOuterThumbBackground}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
CornerRadius="{DynamicResource ContentCropperOuterThumbCornerRadius}">
<Ellipse
Name="InnerThumb"
Width="{DynamicResource ContentCropperInnerThumbWidth}"
Height="{DynamicResource ContentCropperInnerThumbHeight}"
Fill="{TemplateBinding Background}"
RenderTransform="scaleX(0.86) scaleY(0.86)">
<Ellipse.Transitions>
<Transitions>
<TransformOperationsTransition
Easing="0,0 0,1"
Property="RenderTransform"
Duration="00:00:00.167" />
</Transitions>
</Ellipse.Transitions>
</Ellipse>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style Selector="^:pointerover /template/ Ellipse#InnerThumb">
<Setter Property="RenderTransform" Value="scaleX(1.167) scaleY(1.167)" />
</Style>
<Style Selector="^:pressed /template/ Ellipse#InnerThumb">
<Setter Property="RenderTransform" Value="scaleX(0.71) scaleY(0.71)" />
</Style>
<Style Selector="^:disabled /template/ Ellipse#InnerThumb">
<Setter Property="RenderTransform" Value="scaleX(1.167) scaleY(1.167)" />
</Style>
</ControlTheme>
<ControlTheme x:Key="{x:Type ContentCropper}" TargetType="ContentCropper">
<Setter Property="Template">
<ControlTemplate>
<Grid>
<ZoomBorder
x:Name="ZoomBorder"
ClipToBounds="True"
PanButton="Left">
<ContentPresenter
HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}" />
</ZoomBorder>
<Canvas x:Name="Canvas">
<Rectangle
x:Name="RectangleLeft"
Fill="{DynamicResource SmokeFillColorDefaultBrush}"
UseLayoutRounding="True" />
<Rectangle
x:Name="RectangleTop"
Fill="{DynamicResource SmokeFillColorDefaultBrush}"
UseLayoutRounding="True" />
<Rectangle
x:Name="RectangleRight"
Fill="{DynamicResource SmokeFillColorDefaultBrush}"
UseLayoutRounding="True" />
<Rectangle
x:Name="RectangleBottom"
Fill="{DynamicResource SmokeFillColorDefaultBrush}"
UseLayoutRounding="True" />
<Border
x:Name="Border"
Background="Transparent"
BorderBrush="Transparent"
BorderThickness="2"
Cursor="SizeAll" />
<Thumb
x:Name="TopLeftButton"
Width="{DynamicResource ContentCropperThumbWidth}"
Height="{DynamicResource ContentCropperThumbHeight}"
Theme="{StaticResource ContentCropperThumbStyle}" />
<Thumb
x:Name="TopRightButton"
Width="{DynamicResource ContentCropperThumbWidth}"
Height="{DynamicResource ContentCropperThumbHeight}"
Theme="{StaticResource ContentCropperThumbStyle}" />
<Thumb
x:Name="BottomLeftButton"
Width="{DynamicResource ContentCropperThumbWidth}"
Height="{DynamicResource ContentCropperThumbHeight}"
Theme="{StaticResource ContentCropperThumbStyle}" />
<Thumb
x:Name="BottomRightButton"
Width="{DynamicResource ContentCropperThumbWidth}"
Height="{DynamicResource ContentCropperThumbHeight}"
Theme="{StaticResource ContentCropperThumbStyle}" />
</Canvas>
</Grid>
</ControlTemplate>
</Setter>
</ControlTheme>
</ResourceDictionary>
@@ -1,39 +1,34 @@
using Avalonia;
using Avalonia.Controls.Primitives;
using Avalonia.Controls;
using Avalonia.Controls.Primitives;
using Avalonia.Controls.Shapes;
using Avalonia.Input;
using Avalonia.Interactivity;
using Avalonia.Media;
using Avalonia.Media.Imaging;
using Avalonia;
using Avalonia.Controls.Shapes;
namespace Toolkit.UI.Controls.Avalonia;
public class ImageCropper :
TemplatedControl
public class ContentCropper : ContentControl
{
public static readonly StyledProperty<IImage?> CurrentAreaBitmapProperty =
AvaloniaProperty.Register<ImageCropper, IImage?>(nameof(CurrentAreaBitmap));
public static readonly StyledProperty<Rect> CurrentRectProperty =
AvaloniaProperty.Register<ImageCropper, Rect>(nameof(CurrentRect));
public static readonly StyledProperty<Rect> CropRectangleProperty =
AvaloniaProperty.Register<ContentCropper, Rect>(nameof(CropRectangle));
public static readonly StyledProperty<bool> IsRatioScaleProperty =
AvaloniaProperty.Register<ImageCropper, bool>(nameof(IsRatioScale));
AvaloniaProperty.Register<ContentCropper, bool>(nameof(IsRatioScale));
public static readonly StyledProperty<double> RectScaleProperty =
AvaloniaProperty.Register<ImageCropper, double>(nameof(RectScale), 0.5);
AvaloniaProperty.Register<ContentCropper, double>(nameof(RectScale), 0.5);
public static readonly StyledProperty<Size> ScaleSizeProperty =
AvaloniaProperty.Register<ImageCropper, Size>(nameof(ScaleSize), new Size(2, 1));
public static readonly StyledProperty<IImage?> SourceProperty =
AvaloniaProperty.Register<ImageCropper, IImage?>(nameof(Source));
AvaloniaProperty.Register<ContentCropper, Size>(nameof(ScaleSize), new Size(2, 1));
private Border? border;
private Thumb? bottomLeftButton;
private Thumb? bottomRightButton;
private Canvas? canvas;
private double cropHeightRatio;
private double cropLeftRatio;
private double cropTopRatio;
private double cropWidthRatio;
private bool isDragging;
private double offsetX;
private double offsetY;
@@ -41,25 +36,18 @@ public class ImageCropper :
private Rectangle? rectangleLeft;
private Rectangle? rectangleRight;
private Rectangle? rectangleTop;
private Thumb? topLeftButton;
private Thumb? topRightButton;
static ImageCropper()
static ContentCropper()
{
AffectsRender<ImageCropper>(SourceProperty, RectScaleProperty);
AffectsRender<ContentCropper>(RectScaleProperty, ContentProperty);
}
public IImage? CurrentAreaBitmap
public Rect CropRectangle
{
get => GetValue(CurrentAreaBitmapProperty);
private set => SetValue(CurrentAreaBitmapProperty, value);
}
public Rect CurrentRect
{
get => GetValue(CurrentRectProperty);
private set => SetValue(CurrentRectProperty, value);
get => GetValue(CropRectangleProperty);
private set => SetValue(CropRectangleProperty, value);
}
public bool IsRatioScale
@@ -80,12 +68,6 @@ public class ImageCropper :
set => SetValue(ScaleSizeProperty, value);
}
public IImage? Source
{
get => GetValue(SourceProperty);
set => SetValue(SourceProperty, value);
}
protected override void OnApplyTemplate(TemplateAppliedEventArgs args)
{
base.OnApplyTemplate(args);
@@ -120,59 +102,85 @@ public class ImageCropper :
{
bottomRightButton.DragDelta += OnThumbDragDelta;
}
DrawImage();
}
protected override void OnLoaded(RoutedEventArgs args)
{
base.OnLoaded(args);
DrawImage();
InitializeCropRect();
}
protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
{
base.OnPropertyChanged(change);
if (change.Property == SourceProperty ||
change.Property == IsRatioScaleProperty ||
change.Property == RectScaleProperty)
if (change.Property == IsRatioScaleProperty ||
change.Property == RectScaleProperty ||
change.Property == ContentProperty)
{
DrawImage();
InitializeCropRect();
}
}
private void DrawImage()
protected override void OnSizeChanged(SizeChangedEventArgs args)
{
if (canvas is null || Source is not Bitmap bitmap)
base.OnSizeChanged(args);
if (canvas is null || border is null)
{
return;
}
double maxWidth = DesiredSize.Width;
double maxHeight = DesiredSize.Height;
double newContentWidth = Bounds.Width;
double newContentHeight = Bounds.Height;
double imageWidth = Source.Size.Width;
double imageHeight = Source.Size.Height;
canvas.Width = newContentWidth;
canvas.Height = newContentHeight;
double scaleFactor = Math.Min(maxWidth / imageWidth, maxHeight / imageHeight);
double width = imageWidth * scaleFactor;
double height = imageHeight * scaleFactor;
// Calculate new positions and sizes based on updated ratios
double newCropLeft = cropLeftRatio * newContentWidth;
double newCropTop = cropTopRatio * newContentHeight;
double newCropWidth = cropWidthRatio * newContentWidth;
double newCropHeight = cropHeightRatio * newContentHeight;
// Check if the crop rectangle was resized or moved, and update accordingly
if (border.Width != newCropWidth || border.Height != newCropHeight)
{
border.Width = newCropWidth;
border.Height = newCropHeight;
Canvas.SetLeft(border, newCropLeft);
Canvas.SetTop(border, newCropTop);
}
PositionThumbs();
RenderOverLays();
}
private void InitializeCropRect()
{
if (canvas is null || Content is not Control content)
{
return;
}
double maxWidth = Bounds.Width;
double maxHeight = Bounds.Height;
double contentWidth = content.Bounds.Width > 0 ? content.Bounds.Width : maxWidth * 0.5;
double contentHeight = content.Bounds.Height > 0 ? content.Bounds.Height : maxHeight * 0.5;
double scaleFactor = Math.Min(maxWidth / contentWidth, maxHeight / contentHeight);
double width = contentWidth * scaleFactor;
double height = contentHeight * scaleFactor;
canvas.Width = width;
canvas.Height = height;
canvas.Background = new ImageBrush
{
Source = bitmap
};
UpdatePunchThrough(width, height);
Render();
UpdateCropArea(width, height);
RenderOverLays();
}
private void OnBorderPointerMoved(object? sender,
PointerEventArgs args)
private void OnBorderPointerMoved(object? sender, PointerEventArgs args)
{
if (!isDragging || canvas is null || border is null)
{
@@ -187,11 +195,10 @@ public class ImageCropper :
Canvas.SetTop(border, newY);
PositionThumbs();
Render();
RenderOverLays();
}
private void OnBorderPointerPressed(object? sender,
PointerPressedEventArgs args)
private void OnBorderPointerPressed(object? sender, PointerPressedEventArgs args)
{
if (!isDragging && border is not null)
{
@@ -203,8 +210,11 @@ public class ImageCropper :
}
}
private void OnBorderPointerReleased(object? sender,
PointerReleasedEventArgs args) => isDragging = false;
private void OnBorderPointerReleased(object? sender, PointerReleasedEventArgs args)
{
isDragging = false;
UpdateCropRatios();
}
private void OnThumbDragDelta(object? sender, VectorEventArgs args)
{
@@ -226,33 +236,20 @@ public class ImageCropper :
case "TopLeftButton":
newWidth = Math.Max(0, border.Width - deltaX);
newHeight = Math.Max(0, border.Height - deltaY);
if (newWidth > 0)
{
leftPosition += deltaX;
}
if (newHeight > 0)
{
topPosition += deltaY;
}
if (newWidth > 0) leftPosition += deltaX;
if (newHeight > 0) topPosition += deltaY;
break;
case "TopRightButton":
newWidth = Math.Max(0, border.Width + deltaX);
newHeight = Math.Max(0, border.Height - deltaY);
if (newHeight > 0)
{
topPosition += deltaY;
}
if (newHeight > 0) topPosition += deltaY;
break;
case "BottomLeftButton":
newWidth = Math.Max(0, border.Width - deltaX);
newHeight = Math.Max(0, border.Height + deltaY);
if (newWidth > 0)
{
leftPosition += deltaX;
}
if (newWidth > 0) leftPosition += deltaX;
break;
case "BottomRightButton":
@@ -261,45 +258,16 @@ public class ImageCropper :
break;
}
if (newWidth < 0 || newHeight < 0)
{
return;
}
if (thumb.Name == "TopLeftButton" || thumb.Name == "BottomLeftButton")
{
leftPosition = Math.Max(0, leftPosition);
if (newWidth > 0)
{
newWidth = Math.Max(0, border.Width - (leftPosition - Canvas.GetLeft(border)));
}
}
else if (thumb.Name == "TopRightButton" || thumb.Name == "BottomRightButton")
{
newWidth = Math.Min(newWidth, canvas.Width - leftPosition);
}
if (thumb.Name == "TopLeftButton" || thumb.Name == "TopRightButton")
{
topPosition = Math.Max(0, topPosition);
if (newHeight > 0)
{
newHeight = Math.Max(0, border.Height - (topPosition - Canvas.GetTop(border)));
}
}
else if (thumb.Name == "BottomLeftButton" || thumb.Name == "BottomRightButton")
{
newHeight = Math.Min(newHeight, canvas.Height - topPosition);
}
border.Width = newWidth;
border.Height = newHeight;
Canvas.SetLeft(border, leftPosition);
Canvas.SetTop(border, topPosition);
UpdateCropRatios();
PositionThumbs();
Render();
RenderOverLays();
}
private void PositionThumbs()
@@ -340,7 +308,7 @@ public class ImageCropper :
}
}
private void Render()
private void RenderOverLays()
{
if (canvas == null ||
border == null ||
@@ -376,11 +344,22 @@ public class ImageCropper :
Canvas.SetTop(rectangleBottom, bottomY);
}
private void UpdatePunchThrough(double width,
double height)
private void UpdateCropRatios()
{
if (canvas == null ||
border == null)
if (canvas == null || border == null)
{
return;
}
cropLeftRatio = Canvas.GetLeft(border) / canvas.Width;
cropTopRatio = Canvas.GetTop(border) / canvas.Height;
cropWidthRatio = border.Width / canvas.Width;
cropHeightRatio = border.Height / canvas.Height;
}
private void UpdateCropArea(double width, double height)
{
if (canvas == null || border == null)
{
return;
}
@@ -420,4 +399,3 @@ public class ImageCropper :
border.PointerReleased += OnBorderPointerReleased;
}
}
@@ -1,115 +0,0 @@
<ResourceDictionary
xmlns="https://github.com/avaloniaui"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:controls="using:Toolkit.UI.Controls.Avalonia">
<ResourceDictionary.ThemeDictionaries>
<ResourceDictionary x:Key="Light">
<StaticResource x:Key="ImageCropperThumbBackground" ResourceKey="AccentFillColorDefaultBrush" />
<StaticResource x:Key="ImageCropperThumbBrush" ResourceKey="ControlElevationBorderBrush" />
<StaticResource x:Key="ImageCropperOuterThumbBackground" ResourceKey="ControlSolidFillColorDefaultBrush" />
</ResourceDictionary>
<ResourceDictionary x:Key="Dark">
<StaticResource x:Key="ImageCropperThumbBackground" ResourceKey="AccentFillColorDefaultBrush" />
<StaticResource x:Key="ImageCropperThumbBrush" ResourceKey="ControlElevationBorderBrush" />
<StaticResource x:Key="ImageCropperOuterThumbBackground" ResourceKey="ControlSolidFillColorDefaultBrush" />
</ResourceDictionary>
</ResourceDictionary.ThemeDictionaries>
<CornerRadius x:Key="ImageCropperThumbCornerRadius">10</CornerRadius>
<x:Double x:Key="ImageCropperInnerThumbWidth">12</x:Double>
<x:Double x:Key="ImageCropperInnerThumbHeight">12</x:Double>
<x:Double x:Key="ImageCropperThumbWidth">18</x:Double>
<x:Double x:Key="ImageCropperThumbHeight">18</x:Double>
<ControlTheme x:Key="ImageCropperThumbStyle" TargetType="Thumb">
<Setter Property="BorderThickness" Value="1" />
<Setter Property="Background" Value="{DynamicResource ImageCropperThumbBackground}" />
<Setter Property="BorderBrush" Value="{DynamicResource ImageCropperThumbBrush}" />
<Setter Property="ClipToBounds" Value="False" />
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Border
Margin="-2"
Background="{DynamicResource ImageCropperOuterThumbBackground}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
CornerRadius="{DynamicResource ImageCropperOuterThumbCornerRadius}">
<Ellipse
Name="InnerThumb"
Width="{DynamicResource ImageCropperInnerThumbWidth}"
Height="{DynamicResource ImageCropperInnerThumbHeight}"
Fill="{TemplateBinding Background}"
RenderTransform="scaleX(0.86) scaleY(0.86)">
<Ellipse.Transitions>
<Transitions>
<TransformOperationsTransition
Easing="0,0 0,1"
Property="RenderTransform"
Duration="00:00:00.167" />
</Transitions>
</Ellipse.Transitions>
</Ellipse>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style Selector="^:pointerover /template/ Ellipse#InnerThumb">
<Setter Property="RenderTransform" Value="scaleX(1.167) scaleY(1.167)" />
</Style>
<Style Selector="^:pressed /template/ Ellipse#InnerThumb">
<Setter Property="RenderTransform" Value="scaleX(0.71) scaleY(0.71)" />
</Style>
<Style Selector="^:disabled /template/ Ellipse#InnerThumb">
<Setter Property="RenderTransform" Value="scaleX(1.167) scaleY(1.167)" />
</Style>
</ControlTheme>
<ControlTheme x:Key="{x:Type ImageCropper}" TargetType="ImageCropper">
<Setter Property="Template">
<ControlTemplate>
<Canvas x:Name="Canvas">
<Rectangle
x:Name="RectangleLeft"
Fill="{DynamicResource SmokeFillColorDefaultBrush}"
UseLayoutRounding="True" />
<Rectangle
x:Name="RectangleTop"
Fill="{DynamicResource SmokeFillColorDefaultBrush}"
UseLayoutRounding="True" />
<Rectangle
x:Name="RectangleRight"
Fill="{DynamicResource SmokeFillColorDefaultBrush}"
UseLayoutRounding="True" />
<Rectangle
x:Name="RectangleBottom"
Fill="{DynamicResource SmokeFillColorDefaultBrush}"
UseLayoutRounding="True" />
<Border
x:Name="Border"
Background="Transparent"
BorderBrush="Transparent"
BorderThickness="2"
Cursor="SizeAll" />
<Thumb
x:Name="TopLeftButton"
Width="{DynamicResource ImageCropperThumbWidth}"
Height="{DynamicResource ImageCropperThumbHeight}"
Theme="{StaticResource ImageCropperThumbStyle}" />
<Thumb
x:Name="TopRightButton"
Width="{DynamicResource ImageCropperThumbWidth}"
Height="{DynamicResource ImageCropperThumbHeight}"
Theme="{StaticResource ImageCropperThumbStyle}" />
<Thumb
x:Name="BottomLeftButton"
Width="{DynamicResource ImageCropperThumbWidth}"
Height="{DynamicResource ImageCropperThumbHeight}"
Theme="{StaticResource ImageCropperThumbStyle}" />
<Thumb
x:Name="BottomRightButton"
Width="{DynamicResource ImageCropperThumbWidth}"
Height="{DynamicResource ImageCropperThumbHeight}"
Theme="{StaticResource ImageCropperThumbStyle}" />
</Canvas>
</ControlTemplate>
</Setter>
</ControlTheme>
</ResourceDictionary>
@@ -66,7 +66,7 @@
<MergeResourceInclude Source="../Overflow/Overflow.axaml" />
<MergeResourceInclude Source="../ContentBadge/ContentBadge.axaml" />
<MergeResourceInclude Source="../TabStrip/TabStrip.axaml" />
<MergeResourceInclude Source="../ImageCropper/ImageCropper.axaml" />
<MergeResourceInclude Source="../ContentCropper/ContentCropper.axaml" />
<MergeResourceInclude Source="../ContentCard/ContentCard.axaml" />
<MergeResourceInclude Source="../TaskDialog/TaskDialog.axaml" />
<MergeResourceInclude Source="../ContentColorPicker/ContentColorPicker.axaml" />