public void Render(IRenderable rootRenderable)
{
DebugMsg($"Rendering from {rootRenderable}", setDebugFlag: 1);
var newRoot = rootRenderable.FinalizeRendering(_ => Render(rootRenderable));
bool anyUpdates = false;
Reconcile(ref root, newRoot, ref anyUpdates);
root.Display.ParentFont = DisplaySystem.Fonts.Default;
if (anyUpdates)
{
Walk(element =>
{
element.OnReconciliationCompleted();
return(true);
});
}
Style.Apply(root, DefaultTheme);
Walk(element =>
{
element.Display.System = DisplaySystem;
return(true);
});
}
public static void Apply(this Style style, BindableObject bindable)
{
if (style == null)
{
throw new ArgumentNullException("style");
}
style.Apply(bindable);
}
public static void Init()
{
if (_hasInitialized)
{
return;
}
_hasInitialized = true;
// Controls
Registrar.Handlers.Register <ActivityIndicator, ActivityIndicatorHandler>();
Registrar.Handlers.Register <Button, ButtonHandler>();
Registrar.Handlers.Register <Image, ImageHandler>();
Registrar.Handlers.Register <ProgressBar, ProgressBarHandler>();
Registrar.Handlers.Register <SecureField, SecureFieldHandler>();
Registrar.Handlers.Register <Slider, SliderHandler>();
Registrar.Handlers.Register <RadioButton, RadioButtonHandler>();
// Stepper
Registrar.Handlers.Register <Text, TextHandler>();
Registrar.Handlers.Register <TextField, TextFieldHandler>();
Registrar.Handlers.Register <Toggle, ToggleHandler>();
//Registrar.Handlers.Register<WebView, WebViewHandler> ();
// Containers
Registrar.Handlers.Register <ContentView, ContentViewHandler>();
Registrar.Handlers.Register <ListView, ListViewHandler>();
Registrar.Handlers.Register <ScrollView, ScrollViewHandler>();
Registrar.Handlers.Register <View, ViewHandler>();
Registrar.Handlers.Register <ViewRepresentable, ViewRepresentableHandler>();
Registrar.Handlers.Register <TabView, TabViewHandler>();
Registrar.Handlers.Register <NavigationView, NavigationViewHandler>();
Registrar.Handlers.Register <RadioGroup, RadioGroupHandler>();
// Layouts
Registrar.Handlers.Register <HStack, HStackHandler>();
Registrar.Handlers.Register <VStack, VStackHandler>();
Registrar.Handlers.Register <ZStack, ZStackHandler>();
Registrar.Handlers.Register <Grid, GridHandler>();
Registrar.Handlers.Register <Spacer, SpacerHandler>();
// Modal Support
ModalView.PerformPresent = ModalManager.ShowModal;
ModalView.PerformDismiss = ModalManager.DismisModal;
// Device Services
ThreadHelper.JoinableTaskContext = new Microsoft.VisualStudio.Threading.JoinableTaskContext();
Device.GraphicsService = new AndroidGraphicsService();
Device.BitmapService = new AndroidBitmapService();
AnimationManger.SetTicker(new AndroidTicker());
//Set Default Style
var style = new Style();
style.Apply();
}
private static void ApplyEnabledOrDisabled(Cell cell, Style enabled, Style disabled, Style selected)
{
if (cell.IsEnabled)
{
enabled.Apply(cell);
return;
}
disabled.Apply(cell);
}
public static T ApplyStyle <T>(this T view, Style style) where T : ContextualObject
{
style.Apply(view);
return(view);
}
public void ApplyStyle()
{
Style.Apply(this);
Style.Apply(dataGridView1);
}
void AddElement (IList<Element> list, XElement e, Pen inheritPen, Brush inheritBrush)
{
//
// Style
//
Element r = null;
Style eStyle = new Style();
ApplyStyle (e.Attributes ().ToDictionary (k => k.Name.LocalName, v => v.Value), eStyle);
var style = ReadString (e.Attribute ("style"));
if (!string.IsNullOrWhiteSpace (style)) {
ApplyStyle (style, eStyle);
}
if (!eStyle.hasPen) eStyle.pen = inheritPen;
if (!eStyle.hasBrush) eStyle.brush = inheritBrush;
//var id = ReadString (e.Attribute ("id"));
//
// Elements
//
switch (e.Name.LocalName) {
case "text":
{
var x = ReadNumber (e.Attribute ("x"));
var y = ReadNumber (e.Attribute ("y"));
var font = new Font ();
var fontFamily = ReadTextFontFamily(e);
if (!string.IsNullOrEmpty(fontFamily))
font.Family = fontFamily;
var fontSize = ReadTextFontSize(e);
if (fontSize >= 0)
font.Size = fontSize;
TextAlignment textAlignment = ReadTextAlignment(e);
var txt = new Text (new Rect (new Point (x, y), new Size (double.MaxValue, double.MaxValue)), font, textAlignment, eStyle.pen, eStyle.brush);
ReadTextSpans (txt, e);
r = txt;
}
break;
case "rect":
{
var x = ReadNumber (e.Attribute ("x"));
var y = ReadNumber (e.Attribute ("y"));
var width = ReadNumber (e.Attribute ("width"));
var height = ReadNumber (e.Attribute ("height"));
var rx = ReadNumber (e.Attribute ("rx"));
var ry = ReadNumber (e.Attribute ("ry"));
if (ry == 0) {
ry = rx;
}
r = new Rectangle (new Rect (new Point (x, y), new Size (width, height)), new Size (rx, ry), eStyle.pen, eStyle.brush);
}
break;
case "ellipse":
{
var cx = ReadNumber (e.Attribute ("cx"));
var cy = ReadNumber (e.Attribute ("cy"));
var rx = ReadNumber (e.Attribute ("rx"));
var ry = ReadNumber (e.Attribute ("ry"));
r = new Ellipse (new Point (cx - rx, cy - ry), new Size (2 * rx, 2 * ry), eStyle.pen, eStyle.brush);
}
break;
case "circle":
{
var cx = ReadNumber (e.Attribute ("cx"));
var cy = ReadNumber (e.Attribute ("cy"));
var rr = ReadNumber (e.Attribute ("r"));
r = new Ellipse (new Point (cx - rr, cy - rr), new Size (2 * rr, 2 * rr), eStyle.pen, eStyle.brush);
}
break;
case "path":
{
var dA = e.Attribute ("d");
if (dA != null && !string.IsNullOrWhiteSpace (dA.Value)) {
var p = new Path (eStyle.pen, eStyle.brush);
ReadPath (p, dA.Value);
r = p;
}
}
break;
case "polygon":
{
var pA = e.Attribute ("points");
if (pA != null && !string.IsNullOrWhiteSpace (pA.Value)) {
var path = new Path (eStyle.pen, eStyle.brush);
ReadPoints (path, pA.Value, true);
r = path;
}
}
break;
case "polyline":
{
var pA = e.Attribute ("points");
if (pA != null && !string.IsNullOrWhiteSpace (pA.Value)) {
var path = new Path (eStyle.pen, eStyle.brush);
ReadPoints (path, pA.Value, false);
r = path;
}
}
break;
case "g":
{
var g = new Group ();
var groupId = e.Attribute("id");
if (groupId != null && !string.IsNullOrEmpty(groupId.Value))
g.Id = groupId.Value;
AddElements (g.Children, e.Elements (), eStyle.pen, eStyle.brush);
r = g;
}
break;
case "use":
{
var href = ReadString (e.Attributes ().FirstOrDefault (x => x.Name.LocalName == "href"));
if (!string.IsNullOrWhiteSpace (href)) {
XElement useE;
if (defs.TryGetValue (href.Trim ().Replace ("#", ""), out useE)) {
var useList = new List<Element> ();
AddElement (useList, useE, eStyle.pen, eStyle.brush);
r = useList.FirstOrDefault ();
}
}
}
break;
case "title":
Graphic.Title = ReadString (e);
break;
case "desc":
case "description":
Graphic.Description = ReadString (e);
break;
case "defs":
// Already read in earlier pass
break;
case "namedview":
case "metadata":
case "image":
// Ignore
break;
case "line":
{
var x1 = ReadNumber ( e.Attribute("x1") );
var x2 = ReadNumber ( e.Attribute("x2") );
var y1 = ReadNumber ( e.Attribute("y1") );
var y2 = ReadNumber ( e.Attribute("y2") );
var p = new Path (eStyle.pen, null);
p.MoveTo (x1, y1);
p.LineTo (x2, y2);
r = p;
}
break;
case "foreignObject":
{
var x = ReadNumber ( e.Attribute("x") );
var y = ReadNumber ( e.Attribute("y") );
var width = ReadNumber ( e.Attribute("width") );
var height = ReadNumber ( e.Attribute("height") );
r = new ForeignObject(new Point(x, y), new Size(width, height));
}
break;
case "pgf":
{
var id = e.Attribute("id");
System.Diagnostics.Debug.WriteLine("Ignoring pgf element" + (id != null ? ": '" + id.Value + "'" : ""));
}
break;
case "switch":
{
// Evaluate requiredFeatures, requiredExtensions and systemLanguage
foreach (var ee in e.Elements())
{
var requiredFeatures = ee.Attribute("requiredFeatures");
var requiredExtensions = ee.Attribute("requiredExtensions");
var systemLanguage = ee.Attribute("systemLanguage");
// currently no support for any of these restrictions
if (requiredFeatures == null && requiredExtensions == null && systemLanguage == null)
AddElement (list, ee, eStyle.pen, eStyle.brush);
}
}
break;
// color definition that can be referred to by other elements
case "linearGradient":
break;
default:
throw new NotSupportedException ("SVG element \"" + e.Name.LocalName + "\" is not supported");
}
if (r != null) {
eStyle.Apply(r);
r.Transform = ReadTransform (ReadString (e.Attribute ("transform")));
var ida = e.Attribute("id");
if (ida != null && !string.IsNullOrEmpty (ida.Value)) {
r.Id = ida.Value.Trim ();
}
list.Add (r);
}
}
private static void ApplySelected(Cell cell, Style enabled, Style disabled, Style selected)
{
selected.Apply(cell);
}
public void ApplyStyle()
{
Style.Apply(this);
}
protected override object InnerRun(List <Variable> variables)
{
style.Apply((Element)(element.SingleRun(variables)));
return(null);
}
