public EditorView()
{
// Basic functionality
var view = new SKCanvasView {
HeightRequest = 225
};
var keyboard = new MathKeyboard(Rendering.FrontEnd.PainterConstants.LargerFontSize);
var viewModel = keyboard.Keyboard;
viewModel.BindDisplay(view, new SkiaSharp.MathPainter {
TextColor = SKColors.Black
}, new SKColor(0, 0, 0, 153));
// Input from physical keyboard
var entry = new Entry {
Placeholder = "Enter keystrokes...",
HorizontalOptions = LayoutOptions.FillAndExpand
};
entry.TextChanged += (sender, e) => {
entry.Text = "";
foreach (var c in e.NewTextValue)
{
// The (int) extra conversion seems to be required by Android or a crash occurs
viewModel.KeyPress((Editor.MathKeyboardInput)(int) c);
}
};
// Evaluation
var output = new MathView {
FontSize = 32, EnableTouchEvents = true, EnablePanning = true
};
keyboard.Keyboard.ReturnPressed += delegate {
output.LaTeX = Evaluation.Interpret(keyboard.Keyboard.MathList);
};
// Debug labels
var latex = new Label {
Text = "LaTeX = "
};
var atomTypes = new Label {
Text = "Atom Types = "
};
var ranges = new Label {
Text = "Ranges = "
};
var index = new Label {
Text = "Index = "
};
viewModel.RedrawRequested += (sender, e) => Device.BeginInvokeOnMainThread(() => {
latex.Text = "LaTeX = " + viewModel.LaTeX;
atomTypes.Text = "Atom Types = " + string.Join
(", ", viewModel.MathList.Select(x => x.GetType().Name));
ranges.Text = "Ranges = " + string.Join
(", ", (viewModel.Display ?? throw new Structures.InvalidCodePathException("Invalid LaTeX"))
.Displays.Select(x => x.Range));
index.Text = "Index = " + viewModel.InsertionIndex;
});
public EditorView()
{
// Basic functionality
var view = new SKCanvasView {
HeightRequest = 225
};
var keyboard = new MathKeyboard();
var viewModel = keyboard.ViewModel;
viewModel.BindDisplay(view, new SkiaSharp.MathPainter {
TextColor = SKColors.Black
}, new SKColor(0, 0, 0, 153));
// Input from physical keyboard
var entry = new Entry {
Placeholder = "Enter keystrokes..."
};
entry.TextChanged += (sender, e) => {
entry.Text = "";
foreach (var c in e.NewTextValue)
{
// The (int) extra conversion seems to be required by Android or a crash occurs
viewModel.KeyPress((Editor.MathKeyboardInput)(int) c);
}
};
// Debug labels
var latex = new Label {
Text = "LaTeX = "
};
var atomTypes = new Label {
Text = "Atom Types = "
};
var ranges = new Label {
Text = "Ranges = "
};
var index = new Label {
Text = "Index = "
};
viewModel.RedrawRequested += (sender, e) => {
latex.Text = "LaTeX = " + viewModel.LaTeX;
atomTypes.Text = "Atom Types = " + string.Join
(", ", viewModel.MathList.Select(x => x.GetType().Name));
ranges.Text = "Ranges = " + string.Join
(", ", viewModel.Display.Displays.Select(x => x.Range));
index.Text = "Index = " + viewModel.InsertionIndex;
};
// Assemble
Content = new StackLayout {
Children =
{
latex, atomTypes, ranges, index, view, keyboard, entry
}
};
}
public EditorView()
{
// Basic functionality
var view = new SKCanvasView {
HeightRequest = 225
};
var keyboard = new MathKeyboard();
var viewModel = keyboard.Keyboard;
viewModel.BindDisplay(view, new SkiaSharp.MathPainter {
TextColor = SKColors.Black
}, new SKColor(0, 0, 0, 153));
// Input from physical keyboard
var entry = new Entry {
Placeholder = "Enter keystrokes..."
};
entry.TextChanged += (sender, e) => {
entry.Text = "";
foreach (var c in e.NewTextValue)
{
// The (int) extra conversion seems to be required by Android or a crash occurs
viewModel.KeyPress((Editor.MathKeyboardInput)(int) c);
}
};
// Debug labels
var latex = new Label {
Text = "LaTeX = "
};
var atomTypes = new Label {
Text = "Atom Types = "
};
var ranges = new Label {
Text = "Ranges = "
};
var index = new Label {
Text = "Index = "
};
viewModel.RedrawRequested += (sender, e) => Device.BeginInvokeOnMainThread(() => {
latex.Text = "LaTeX = " + viewModel.LaTeX;
atomTypes.Text = "Atom Types = " + string.Join
(", ", viewModel.MathList.Select(x => x.GetType().Name));
ranges.Text = "Ranges = " + string.Join
(", ", (viewModel.Display ?? throw new Structures.InvalidCodePathException("Invalid LaTeX"))
.Displays.Select(x => x.Range));
index.Text = "Index = " + viewModel.InsertionIndex;
});
public EditorPage()
{
InitializeComponent();
var view = new global::SkiaSharp.Views.Forms.SKCanvasView {
WidthRequest = 320, HeightRequest = 225
};
var painter = new SkiaSharp.MathPainter {
TextColor = global::SkiaSharp.SKColors.Black
};
var keyboard = new MathKeyboard();
keyboard.RedrawRequested += (_, __) => view.InvalidateSurface();
view.PaintSurface +=
(sender, e) => {
e.Surface.Canvas.Clear();
SkiaSharp.MathPainter.DrawDisplay(painter, keyboard.Display, e.Surface.Canvas);
keyboard.DrawCaret(e.Surface.Canvas, Rendering.CaretShape.UpArrow);
};
Content = new StackLayout {
Children = { view, keyboard }
};
}