public static void MoveSelection(Data.Layer layer, float dx, float dy, MoveMode mode = MoveMode.Normal)
{
using var group = layer.CreateUndoGroup();
foreach (var anchor in layer.Anchors)
{
if (anchor.IsSelected)
{
anchor.X = RoundToGrid(anchor.X + dx);
anchor.Y = RoundToGrid(anchor.Y + dy);
}
}
foreach (var component in layer.Components)
{
if (component.IsSelected)
{
var t = component.Transformation;
t.M31 = RoundToGrid(t.M31 + dx);
t.M32 = RoundToGrid(t.M32 + dy);
component.Transformation = t;
}
}
foreach (var guideline in UIBroker.GetAllGuidelines(layer))
{
if (guideline.IsSelected)
{
guideline.X = RoundToGrid(guideline.X + dx);
guideline.Y = RoundToGrid(guideline.Y + dy);
}
}
foreach (var path in layer.Paths)
{
MoveSelection(path, dx, dy, mode);
}
}
public override void OnPointerMoved(DesignCanvas canvas, PointerRoutedEventArgs args)
{
base.OnPointerMoved(canvas, args);
if (_origin.HasValue)
{
var pos = canvas.FromClientPosition(args.GetCurrentPoint(canvas).Position);
var snapAxis = UIBroker.Axis.XY;
if (args.KeyModifiers.HasFlag(VirtualKeyModifiers.Shift))
{
snapAxis = ClampToOrigin(pos, _origin.Value, out pos);
}
pos = UIBroker.SnapPointDirect(canvas.Layer, pos, 1f / canvas.ScaleFactor, snapAxis)
.ToPoint();
if (_shouldMoveOrigin)
{
_origin = new Point(
_origin.Value.X + pos.X - _anchor.X,
_origin.Value.Y + pos.Y - _anchor.Y);
}
_anchor = pos;
_points = GetPointsWithEndpoints(canvas.Layer, addIntersections: !args.KeyModifiers.HasFlag(VirtualKeyModifiers.Menu));
canvas.Invalidate();
}
}
public virtual void OnKeyDown(DesignCanvas canvas, KeyRoutedEventArgs args)
{
var control = Window.Current.CoreWindow.GetKeyState(VirtualKey.Control);
// TODO: batch and use the undoGroup reset thing on close enough keyboard moves
if (args.Key == VirtualKey.Left ||
args.Key == VirtualKey.Up ||
args.Key == VirtualKey.Right ||
args.Key == VirtualKey.Down)
{
int dx = 0, dy = 0;
if (args.Key == VirtualKey.Left)
{
dx = -1;
}
else if (args.Key == VirtualKey.Up)
{
dy = 1;
}
else if (args.Key == VirtualKey.Right)
{
dx = 1;
}
else if (args.Key == VirtualKey.Down)
{
dy = -1;
}
var shift = Window.Current.CoreWindow.GetKeyState(VirtualKey.Shift);
if (shift.HasFlag(CoreVirtualKeyStates.Down))
{
dx *= 10;
dy *= 10;
if (control.HasFlag(CoreVirtualKeyStates.Down))
{
dx *= 10;
dy *= 10;
}
}
var layer = canvas.Layer;
using (var group = layer.CreateUndoGroup())
{
Outline.MoveSelection(layer, dx, dy, GetMoveMode());
var selection = layer.Selection;
if (selection.Count == 1 && selection.First() is Data.Point point && Outline.TryJoinPath(layer, point))
{
DisplaySnapResult(
canvas, UIBroker.GetSnapHighlight(point));
}
else if (selection.OfType <Data.Point>().LastOrDefault() is Data.Point focusPoint)
{
DisplaySnapResult(
canvas, UIBroker.GetSnapLines(layer, focusPoint.ToVector2().ToPoint()));
}
}
public static void DrawCoordinates(Data.Layer layer, CanvasDrawingSession ds, float rescale)
{
var color = Color.FromArgb(255, 21, 116, 212);
var canvasPath = layer.ClosedCanvasPath;
var margin = 8 * rescale;
foreach (var path in layer.Paths)
{
foreach (var(point, angle) in UIBroker.GetCurvePointsPreferredAngle(path))
{
var pos = point.ToVector2() + margin * Conversion.ToVector(angle);
CanvasHorizontalAlignment hAlignment;
if (PI_5_8 <= angle && angle < PI_11_8)
{
hAlignment = CanvasHorizontalAlignment.Right;
}
// No && condition here, because we check around 0 or around 360 deg
else if (angle < PI_3_8 || PI_13_8 <= angle)
{
hAlignment = CanvasHorizontalAlignment.Left;
}
else
{
hAlignment = CanvasHorizontalAlignment.Center;
}
float?baseline;
CanvasVerticalAlignment vAlignment;
if (PI_1_8 <= angle && angle < PI_7_8)
{
baseline = null;
vAlignment = CanvasVerticalAlignment.Bottom;
}
else if (PI_9_8 <= angle && angle < PI_15_8)
{
baseline = .78f;
vAlignment = CanvasVerticalAlignment.Top;
}
else
{
baseline = .93f;
vAlignment = CanvasVerticalAlignment.Center;
}
var rx = MathF.Round(point.X, 1);
var ry = MathF.Round(point.Y, 1);
DrawText(ds, $"{rx}, {ry}", pos, color, fontSize: 10, hAlignment: hAlignment, vAlignment: vAlignment, baseline: baseline, rescale: rescale);
}
}
}
public override void OnPointerPressed(DesignCanvas canvas, PointerRoutedEventArgs args)
{
base.OnPointerPressed(canvas, args);
var ptPoint = args.GetCurrentPoint(canvas);
if (ptPoint.Properties.IsLeftButtonPressed)
{
var pos = canvas.FromClientPosition(ptPoint.Position);
_origin = _anchor = UIBroker.SnapPointDirect(canvas.Layer, pos, 1f / canvas.ScaleFactor)
.ToPoint();
canvas.Invalidate();
}
}
public static void RoundSelection(Data.Layer layer)
{
using var group = layer.CreateUndoGroup();
foreach (var anchor in layer.Anchors)
{
if (anchor.IsSelected)
{
anchor.X = RoundToGrid(anchor.X);
anchor.Y = RoundToGrid(anchor.Y);
}
}
foreach (var component in layer.Components)
{
if (component.IsSelected)
{
var t = component.Transformation;
// TODO: could round scale to 2 decimal digits, like we do when transforming
// worth having a round to digits (default = 2) method here?
t.M31 = RoundToGrid(t.M31);
t.M32 = RoundToGrid(t.M32);
component.Transformation = t;
}
}
foreach (var guideline in UIBroker.GetAllGuidelines(layer))
{
if (guideline.IsSelected)
{
// TODO: introduce some angle rounding?
guideline.X = RoundToGrid(guideline.X);
guideline.Y = RoundToGrid(guideline.Y);
}
}
foreach (var path in layer.Paths)
{
foreach (var point in path.Points)
{
if (point.IsSelected)
{
point.X = RoundToGrid(point.X);
point.Y = RoundToGrid(point.Y);
}
}
}
}