public ColorPaletteSelectPage(Action <ColorPaletteSelectPage> paletteSelectCallback)
{
InitializeComponent();
_paletteSelectCallback = paletteSelectCallback;
_items = new ObservableCollection <ColorPalette>(ColorPaletteFactory.MakeAllPalettes());
foreach (var item in _items)
{
SKImageInfo info = new SKImageInfo(100, 20);
SKBitmap bitmap = new SKBitmap(info);
SKCanvas canvas = new SKCanvas(bitmap);
var cellWidth = info.Width / item.Colors.Count;
for (int i = 0; i < item.Colors.Count; i++)
{
var paint = new SKPaint();
paint.Color = item.Colors[i];
paint.Style = SKPaintStyle.Fill;
canvas.DrawRect(new SKRect(i * cellWidth, 0, (i * cellWidth) + cellWidth, info.Height), paint);
}
var img = SKImage.FromBitmap(bitmap);
var encoded = img.Encode();
item.Image = ImageSource.FromStream(encoded.AsStream);
}
PaletteCollection.SetBinding(CollectionView.ItemsSourceProperty, new Binding {
Source = _items
});
}
public MainPage()
{
InitializeComponent();
SkiaView.PaintSurface += OnCanvasViewPaintSurface;
SKRect bounds = new SKRect();
_drawBitmap = new SKBitmap((int)bounds.Right,
(int)bounds.Height);
PaletteSelection.PaintSurface += OnPaletteViewPaintSurface;
_selectedColorPalette = ColorPaletteFactory.MakeAllPalettes()[0];
if (Device.RuntimePlatform == Device.UWP)
{
AppTitle.IsVisible = false;
}
}