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using System;
using System.ComponentModel;
using System.Linq;
using System.Runtime.InteropServices;
using AppKit;
using CoreAnimation;
using CoreGraphics;
using Foundation;
using Xamarin.PropertyEditing.Drawing;
using Xamarin.PropertyEditing.ViewModels;
namespace Xamarin.PropertyEditing.Mac
{
internal class MaterialView : NotifyingView<MaterialDesignColorViewModel>
{
public override bool AcceptsFirstResponder ()
{
return false;
}
public override bool IsFlipped => true;
public MaterialView ()
{
Initialize ();
}
private void Initialize ()
{
WantsLayer = true;
}
public override void OnViewModelChanged (MaterialDesignColorViewModel oldModel)
{
NeedsLayout = true;
}
public override void OnPropertyChanged (object sender, PropertyChangedEventArgs e)
{
switch (e.PropertyName) {
case nameof (ViewModel.ColorName):
case nameof (ViewModel.AccentColor):
case nameof (ViewModel.NormalColor):
NeedsLayout = true;
break;
}
}
public override void Layout ()
{
if (Layer?.Sublayers != null) {
foreach (var l in Layer.Sublayers) {
l.RemoveFromSuperLayer ();
l.Dispose ();
}
}
if (ViewModel == null)
return;
var colors = ViewModel.Palettes.Select (p => new { p.Name, Color = p.MainColor }).ToArray ();
int col = 0;
nfloat x = 0;
nfloat y = 6;
var width = (Frame.Width - 54) / 10;
var height = (Frame.Height - 49) / 4;
MaterialColorLayer CreateLayer (CommonColor color)
{
var selectedColor = color.Lightness > 0.58 ? NSColor.Black : NSColor.White;
return new MaterialColorLayer {
BackgroundColor = color,
ForegroundColor = selectedColor.CGColor,
Text = color.Label,
FontSize = 12,
ContentsScale = NSScreen.MainScreen.BackingScaleFactor,
TextAlignmentMode = CATextLayerAlignmentMode.Center,
};
}
foreach (var p in colors) {
var frame = new CGRect (x, y, width, height);
var selectedColor = p.Color.Lightness > 0.58 ? NSColor.Black : NSColor.White;
var l = new MaterialColorLayer {
Frame = frame,
ForegroundColor = selectedColor.CGColor,
BackgroundColor = p.Color,
CornerRadius = 3,
BorderColor = new CGColor (.5f, .5f, .5f, .5f),
MasksToBounds = false,
IsSelected = ViewModel.Color == p.Color || ViewModel.ColorName == p.Name
};
l.BorderColor = new CGColor (.5f, .5f, .5f, .5f);
l.Frame = new CGRect (x, y, width, height);
Layer.AddSublayer (l);
AddToolTip (new CGRect (x, y, width, height), new NSString(p.Name), IntPtr.Zero);
x += width + 6;
col++;
if (col >= 10) {
x = 0;
y += height + 6;
col = 0;
}
}
Layer.AddSublayer (new CATextLayer {
ForegroundColor = NSColor.ControlText.CGColor,
Frame = new CGRect (x, y + 6, Frame.Width, 25),
String = ViewModel.ColorName,
FontSize = NSFont.SmallSystemFontSize,
ContentsScale = Window?.Screen?.BackingScaleFactor ?? NSScreen.MainScreen.BackingScaleFactor
});
y += 25;
x = 0;
width = Frame.Width / ViewModel.NormalColorScale.Count ();
var normal = new CALayer {
CornerRadius = 3,
MasksToBounds = true,
Frame = new CGRect (x, y, Frame.Width, height),
BorderColor = new CGColor (.5f, .5f, .5f, .5f),
BorderWidth = 1
};
Layer.AddSublayer (normal);
foreach (var color in ViewModel.NormalColorScale) {
var l = CreateLayer (color.Value);
l.ColorType = MaterialColorType.Normal;
l.IsSelected = color.Value == ViewModel.NormalColor || color.Value == ViewModel.Color;
l.Frame = new CGRect (x, 0, width, height);
AddToolTip (new CGRect (x, y, width, height), new NSString (color.ToString ()), IntPtr.Zero);
normal.AddSublayer (l);
x += width;
}
if (ViewModel.AccentColorScale.Count () <= 0)
return;
y += height + 6;
x = 0;
var accent = new CALayer {
CornerRadius = 3,
MasksToBounds = true,
Frame = new CGRect (x, y, Frame.Width, height),
BorderColor = new CGColor (.5f, .5f, .5f, .5f),
BorderWidth = 1
};
Layer.AddSublayer (accent);
width = Frame.Width / ViewModel.AccentColorScale.Count ();
foreach (var color in ViewModel.AccentColorScale) {
var l = CreateLayer (color.Value);
l.ColorType = MaterialColorType.Accent;
l.IsSelected = color.Value == ViewModel.AccentColor || color.Value == ViewModel.Color;
l.Frame = new CGRect (x, 0, width, height);
AddToolTip (new CGRect (x, y, width, height), new NSString (color.ToString ()), IntPtr.Zero);
accent.AddSublayer (l);
x += width;
}
}
public override void MouseDown (NSEvent theEvent)
{
UpdateFromEvent (theEvent);
}
public void UpdateFromEvent (NSEvent theEvent)
{
var location = ConvertPointToLayer (ConvertPointFromView (theEvent.LocationInWindow, null));
foreach (var layer in Layer.Sublayers) {
var hit = layer.HitTest (location);
for (var c = hit; c != null; c = c.SuperLayer) {
var editor = c as MaterialColorLayer;
if (editor != null) {
switch (editor.ColorType) {
case MaterialColorType.Accent:
ViewModel.AccentColor = editor.BackgroundColor;
break;
case MaterialColorType.Normal:
ViewModel.NormalColor = editor.BackgroundColor;
break;
case MaterialColorType.Palette:
var match = ViewModel.Palettes.First (palette => palette.MainColor == editor.BackgroundColor);
ViewModel.ColorName = match.Name;
break;
}
NeedsLayout = true;
}
}
}
}
}
}
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