private void Initialize()
{
// add canvas layers to root layout
for (int i = 0; i < _view.Layers.Count; i++)
{
Layout.Children.Add(_view.Layers[i].Native as UIElement);
}
// create grid canvas
_view.CreateGrid(600.0, 600.0, 30.0, 0.0, 0.0);
// handle keyboard input
PreviewKeyDown += (sender, e) =>
{
Action action;
bool result = _shortcuts.TryGetValue(
new Tuple <Key, ModifierKeys>(e.Key, Keyboard.Modifiers),
out action);
if (result == true && action != null)
{
action();
}
};
// set data context
DataContext = _view.Layers.LastOrDefault();
}
private void Initialize()
{
var panel = _view.Layers.LastOrDefault().Native as WinFormsCanvasPanel;
// add canvas panel to root layout, same panel is used for all layers
this.SuspendLayout();
this.Controls.Add(panel);
this.ResumeLayout(false);
// focus panel to enable mouse wheel event
panel.Select();
// create grid canvas
_view.CreateGrid(600.0, 600.0, 30.0, 0.0, 0.0);
// handle keyboard input
panel.KeyDown += (sender, e) =>
{
Action action;
bool result = _shortcuts.TryGetValue(
new Tuple <Keys, Keys>(e.KeyCode, e.Modifiers),
out action);
if (result == true && action != null)
{
action();
}
};
// open file dialog
this.openFileDialog1.FileOk += (sender, e) =>
{
string path = openFileDialog1.FileName;
int filterIndex = openFileDialog1.FilterIndex;
_view.Open(path, filterIndex - 1);
_view.Render();
};
// save file dialog
this.saveFileDialog1.FileOk += (sender, e) =>
{
string path = saveFileDialog1.FileName;
int filterIndex = saveFileDialog1.FilterIndex;
_view.Save(path, filterIndex - 1);
};
// export file dialog
this.saveFileDialog2.FileOk += (sender, e) =>
{
string path = saveFileDialog2.FileName;
int filterIndex = saveFileDialog2.FilterIndex;
_view.Export(path, filterIndex - 1);
};
// draw canvas panel
_view.Render();
}
public void Initialize(Context context)
{
Holder.AddCallback(this);
SetWillNotDraw(true);
_touch = Observable.FromEventPattern <TouchEventArgs>(this, "Touch").Select(e => e.EventArgs.Event);
_touches = _touch.Subscribe((e) => OnTouch(e));
Renderer = new SurfaceRenderer();
View = new DrawingView(
new Assembly[]
{
typeof(Bootstrapper).GetTypeInfo().Assembly,
typeof(CanvasView).GetTypeInfo().Assembly
});
var canvas = View.Layers.LastOrDefault();
canvas.Downs = Observable.FromEventPattern <Android.Views.View.TouchEventArgs>(this, "Touch")
.Where(e => (e.EventArgs.Event.Action & MotionEventActions.Mask) == MotionEventActions.Down && e.EventArgs.Event.PointerCount == 1)
.Select(e =>
{
float px = e.EventArgs.Event.GetX();
float py = e.EventArgs.Event.GetY();
double x = canvas.EnableSnap ?
canvas.Snap(px - Renderer.PanX, canvas.SnapX * Renderer.Zoom) : px - Renderer.PanX;
double y = canvas.EnableSnap ?
canvas.Snap(py - Renderer.PanY, canvas.SnapY * Renderer.Zoom) : py - Renderer.PanY;
x /= Renderer.Zoom;
y /= Renderer.Zoom;
return(new Vector2(x, y));
});
canvas.Ups = Observable.FromEventPattern <Android.Views.View.TouchEventArgs>(this, "Touch")
.Where(e => (e.EventArgs.Event.Action & MotionEventActions.Mask) == MotionEventActions.Up && e.EventArgs.Event.PointerCount == 1)
.Select(e =>
{
float px = e.EventArgs.Event.GetX();
float py = e.EventArgs.Event.GetY();
double x = canvas.EnableSnap ?
canvas.Snap(px - Renderer.PanX, canvas.SnapX * Renderer.Zoom) : px - Renderer.PanX;
double y = canvas.EnableSnap ?
canvas.Snap(py - Renderer.PanY, canvas.SnapY * Renderer.Zoom) : py - Renderer.PanY;
x /= Renderer.Zoom;
y /= Renderer.Zoom;
return(new Vector2(x, y));
});
canvas.Moves = Observable.FromEventPattern <Android.Views.View.TouchEventArgs>(this, "Touch")
.Where(e => (e.EventArgs.Event.Action & MotionEventActions.Mask) == MotionEventActions.Move && e.EventArgs.Event.PointerCount == 1)
.Select(e =>
{
float px = e.EventArgs.Event.GetX();
float py = e.EventArgs.Event.GetY();
double x = canvas.EnableSnap ?
canvas.Snap(px - Renderer.PanX, canvas.SnapX * Renderer.Zoom) : px - Renderer.PanX;
double y = canvas.EnableSnap ?
canvas.Snap(py - Renderer.PanY, canvas.SnapY * Renderer.Zoom) : py - Renderer.PanY;
x /= Renderer.Zoom;
y /= Renderer.Zoom;
return(new Vector2(x, y));
});
canvas.Native = this;
View.Initialize();
// background layer
View.Layers[0].Background.A = 0xFF;
View.Layers[0].Background.R = 0xFF;
View.Layers[0].Background.G = 0xFF;
View.Layers[0].Background.B = 0xFF;
// drawing layer
View.Layers[1].Background.A = 0xFF;
View.Layers[1].Background.R = 0xF5;
View.Layers[1].Background.G = 0xF5;
View.Layers[1].Background.B = 0xF5;
View.CreateGrid(600.0, 600.0, 30.0, 0.0, 0.0);
}