public void AddPoint(Vector2 pos)
{
IconPoint point = CreateInstance(typeof(IconPoint)) as IconPoint;
point.SetLocalPosition(GetLocalPositionOnCanvas(gridRect, pos));
points.Add(point);
}
IIconGridElement CreateVertex(Vector2 pos)
{
IconPoint p = CreateInstance(typeof(IconPoint)) as IconPoint;
p.SetPosition(pos);
return(p);
}
public IEnumerable <(int x, int y)> GetIconsPositions()
{
var wnd = GetDesktopWindow();
User32.GetWindowThreadProcessId(wnd, out uint pid);
var desktopProcessHandle = IntPtr.Zero;
var sharedMemoryPointer = IntPtr.Zero;
try
{
desktopProcessHandle = Kernel32.OpenProcess(ProcessAccess.VmOperation
| ProcessAccess.VmRead
| ProcessAccess.VmWrite, false, pid);
sharedMemoryPointer = Kernel32.VirtualAllocEx(desktopProcessHandle, IntPtr.Zero, 4096,
AllocationType.Reserve | AllocationType.Commit, MemoryProtection.ReadWrite);
var iconsCount = GetNumberOfIcons();
var icons = new List <(int x, int y)>();
for (var index = 0; index < iconsCount; index++)
{
uint numberOfBytes = 0;
var points = new IconPoint[1];
Kernel32.WriteProcessMemory(desktopProcessHandle, sharedMemoryPointer,
Marshal.UnsafeAddrOfPinnedArrayElement(points, 0), Marshal.SizeOf(typeof(IconPoint)),
ref numberOfBytes);
User32.SendMessage(wnd, User32.LVM_GETITEMPOSITION, index, sharedMemoryPointer);
Kernel32.ReadProcessMemory(desktopProcessHandle, sharedMemoryPointer,
Marshal.UnsafeAddrOfPinnedArrayElement(points, 0), Marshal.SizeOf(typeof(IconPoint)),
ref numberOfBytes);
icons.Add((x: points[0].X, y: points[0].Y));
}
return(icons);
}
finally
{
if (desktopProcessHandle != IntPtr.Zero)
{
Kernel32.CloseHandle(desktopProcessHandle);
}
if (sharedMemoryPointer != IntPtr.Zero)
{
Kernel32.VirtualFreeEx(desktopProcessHandle, sharedMemoryPointer, 0, FreeType.Release);
}
}
}
public List <Vector2[]> GetReferenceLines(IconPoint p)
{
Vector2 center = p.rect.position;
Vector2 top = new Vector2(center.x, container.yMin);
Vector2 bottom = new Vector2(center.x, container.yMax);
Vector2 left = new Vector2(container.xMin, center.y);
Vector2 right = new Vector2(container.xMax, center.y);
return(new List <Vector2[]>()
{
new Vector2[] { left, right }, new Vector2[] { top, bottom }
});
}
public static Vector2 GetSnappedLocation(IconPoint p)
{
Vector2 pos = p.localPosition;
float closestX = float.MaxValue;
float closestY = float.MaxValue;
foreach (IconCanvasGuide guide in Guides)
{
guide.hovered = false;
if (guide.type == IconCanvasGuideType.Horizontal)
{
float distance = Mathf.Abs(pos.y - guide.y);
if (distance < guide.normalizedSnapThreshold)
{
if (distance < closestY)
{
closestY = guide.y;
guide.hovered = p.dragging;
}
}
}
else
{
float distance = Mathf.Abs(pos.x - guide.x);
if (distance < guide.normalizedSnapThreshold)
{
if (distance < closestX)
{
closestX = guide.x;
guide.hovered = p.dragging;
}
}
}
}
pos.x = (closestX != float.MaxValue) ? closestX : pos.x;
pos.y = (closestY != float.MaxValue) ? closestY : pos.y;
return(pos);
}
public void DrawReferenceLines(IconPoint p)
{
if (!p.drawRefLines)
{
return;
}
Handles.BeginGUI();
Handles.color = Color.red;
Vector2 center = p.rect.position;
Vector2 top = new Vector2(center.x, container.yMin);
Vector2 bottom = new Vector2(center.x, container.yMax);
Vector2 left = new Vector2(container.xMin, center.y);
Vector2 right = new Vector2(container.xMax, center.y);
Handles.DrawLine(left, right);
Handles.DrawLine(top, bottom);
Handles.color = Color.white;
Handles.EndGUI();
}
