05aec8ebfa
Add the borderless, transparent, topmost, click-through DragGhostWindow that hosts a tilted (~-6deg) translucent snapshot of the dragged row, a TaskDragController that owns its lifecycle (snapshot -> show -> follow -> close), and a pure DPI-aware DragHitTest helper (unit-tested) for the cross-window screen hit test. Adds the TaskRowViewModel.IsDragging flag and the 'grabbed' Border.task-row.dragging style (lift + scale + lower opacity + shadow). Not yet wired into the drag source.
30 lines
1.1 KiB
C#
30 lines
1.1 KiB
C#
using Avalonia;
|
||
using Avalonia.Controls;
|
||
using Avalonia.Media;
|
||
|
||
namespace ClaudeDo.Ui.Views.Controls;
|
||
|
||
/// <summary>
|
||
/// Borderless, transparent, topmost, click-through window that hosts the translucent drag
|
||
/// "ghost" — a snapshot of the row being dragged. It never activates (so the source window
|
||
/// keeps pointer capture) and is repositioned to the screen cursor on every captured move.
|
||
/// </summary>
|
||
public partial class DragGhostWindow : Window
|
||
{
|
||
public DragGhostWindow() => InitializeComponent();
|
||
|
||
/// <summary>
|
||
/// Show <paramref name="image"/> at <paramref name="logicalWidth"/>×<paramref name="logicalHeight"/>
|
||
/// with <paramref name="pad"/> of slack around it so the tilt isn't clipped by the window bounds.
|
||
/// </summary>
|
||
public void SetImage(IImage image, double logicalWidth, double logicalHeight, double pad)
|
||
{
|
||
GhostImage.Source = image;
|
||
GhostImage.Width = logicalWidth;
|
||
GhostImage.Height = logicalHeight;
|
||
GhostImage.Margin = new Thickness(pad);
|
||
Width = logicalWidth + pad * 2;
|
||
Height = logicalHeight + pad * 2;
|
||
}
|
||
}
|