Page Setup and Preview UI

PrintingTools.UI supplies reusable Avalonia controls for page setup and preview flows.

Main UI types

Type	Role
PageSetupDialog	Embeddable page setup user control.
PageSetupWindow	Modal shell for the setup dialog.
PrintPreviewWindow	Packaged preview window with navigation, zoom, print, export, and printer refresh actions.
PrintPageVectorView	Vector-page presentation surface used by the preview experience.
PageSetupViewModel	Maps `PrintOptions` into editable UI state and applies changes back.
PrintPreviewViewModel	Holds preview pages, printers, zoom, and action requests.

Page setup flow

using PrintingTools.Core;
using PrintingTools.UI.Controls;
using PrintingTools.UI.ViewModels;

var viewModel = new PageSetupViewModel();
viewModel.LoadFrom(currentOptions);

var window = new PageSetupWindow(viewModel);
var applied = await window.ShowDialog<bool>(owner);

if (applied)
{
    currentOptions = viewModel.ApplyTo(currentOptions);
}

Preview flow

using PrintingTools.Core;
using PrintingTools.UI.Controls;
using PrintingTools.UI.ViewModels;

var preview = await manager.CreatePreviewAsync(session);
var viewModel = new PrintPreviewViewModel(preview.Pages, preview.VectorDocument);
viewModel.LoadPrinters(await manager.GetPrintersAsync(), session.Printer?.Id, session.Printer?.Name);

var window = new PrintPreviewWindow(viewModel);
await window.ShowDialog(owner);

Handling preview actions

PrintPreviewViewModel raises ActionRequested so the host application can decide what to do when the user presses Print, Export PDF, refreshes printers, or requests vector preview.

Native preview integration

On macOS, MacPreviewHost and MacPreviewNativeControlHost can be embedded into PrintPreviewWindow.NativePreviewContent when you want a native preview surface alongside the managed page list.