public MouseDragAction(IntPtr hwnd, Point initialMousePosition)
{
mHwnd = hwnd;
mInitialMousePosition = initialMousePosition;
var windowPlacement = WinAPI.GetPlacement(hwnd);
if (windowPlacement == WinAPI.ShowWindowCommands.SW_MAXIMIZE)
{
WinAPI.ShowWindow(hwnd, WinAPI.ShowWindowCommands.SW_RESTORE);
}
if (!WinAPI.GetWindowRect(hwnd, out var windowRect))
{
throw new InvalidOperationException(
$"Could not get window rect of window {hwnd}");
}
mInitialWindowPosition = new Point(windowRect.Left, windowRect.Top);
mInvisibleWindow = new InvisibleWindow();
mInvisibleWindow.CenterAt(initialMousePosition);
mInvisibleWindow.Cursor = Cursors.Hand;
mInvisibleWindow.Show();
mSnapRectangle = new SnapRectangle()
{
Visible = false
};
}
public MouseResizeAction(IntPtr hwnd, Point initialMousePosition)
{
mInitialMousePosition = initialMousePosition;
mHwnd = hwnd;
if (!WinAPI.GetWindowRect(hwnd, out var rect))
{
throw new InvalidOperationException($"Could not get window rect of window {hwnd}");
}
var cornerSize = Properties.Settings.Default.sideWidth / 2;
var sideSize = cornerSize;
mInitialWindowRect = mNewWindowRect =
new Rectangle(rect.Left, rect.Top,
rect.Right - rect.Left,
rect.Bottom - rect.Top);
var normalizedMousePos = new PointF(
(initialMousePosition.X - mInitialWindowRect.X)
/ (float)mInitialWindowRect.Width,
(initialMousePosition.Y - mInitialWindowRect.Y)
/ (float)mInitialWindowRect.Height);
var areas = new Dictionary <ResizeMode, RectangleF> {
[ResizeMode.TopLeft] = new RectangleF(0, 0, cornerSize, cornerSize),
[ResizeMode.TopRight] = new RectangleF(1 - cornerSize, 0, cornerSize, cornerSize),
[ResizeMode.BottomLeft] = new RectangleF(0, 1 - cornerSize, cornerSize, cornerSize),
[ResizeMode.BottomRight] = new RectangleF(1 - cornerSize, 1 - cornerSize, cornerSize, cornerSize),
[ResizeMode.Top] = new RectangleF(0, 0, 1, sideSize),
[ResizeMode.Left] = new RectangleF(0, 0, sideSize, 1),
[ResizeMode.Right] = new RectangleF(1 - sideSize, 0, sideSize, 1),
[ResizeMode.Bottom] = new RectangleF(0, 1 - sideSize, 1, sideSize),
};
WinAPI.SendMessageW(hwnd, WinAPI.WM_ENTERSIZEMOVE, IntPtr.Zero, IntPtr.Zero);
if (areas.TryFirstOrDefault(kvp => kvp.Value.Contains(normalizedMousePos), out var areaKvp))
{
mResizeMode = areaKvp.Key;
}
else
{
mResizeMode = ResizeMode.All;
}
mInvisibleWindow = new InvisibleWindow();
mInvisibleWindow.CenterAt(initialMousePosition);
mInvisibleWindow.Cursor = Cursors[mResizeMode];
mInvisibleWindow.Show();
mUpdateTimer = new Timer();
mUpdateTimer.Interval = 25;
mUpdateTimer.Tick += UpdateTimer_Tick;
mUpdateTimer.Start();
}
public void Update(Point currentMousePosition)
{
int deltaX = currentMousePosition.X - mInitialMousePosition.X;
int deltaY = currentMousePosition.Y - mInitialMousePosition.Y;
WinAPI.SetWindowPos(mHwnd, 0,
mInitialWindowPosition.X + deltaX,
mInitialWindowPosition.Y + deltaY,
0, 0, WinAPI.SWP_NOSIZE | WinAPI.SWP_NOZORDER);
var nearestSide = GetNearestSide(currentMousePosition);
switch (nearestSide.Side)
{
case Side.Left:
mSnapRectangle.Width = nearestSide.screen.WorkingArea.Width / 2;
mSnapRectangle.Height = nearestSide.screen.WorkingArea.Height;
mSnapRectangle.Location = nearestSide.screen.WorkingArea.Location;
break;
case Side.Top:
mSnapRectangle.Width = nearestSide.screen.WorkingArea.Width;
mSnapRectangle.Height = nearestSide.screen.WorkingArea.Height / 2;
mSnapRectangle.Location = nearestSide.screen.WorkingArea.Location;
break;
case Side.Right:
mSnapRectangle.Width = nearestSide.screen.WorkingArea.Width / 2;
mSnapRectangle.Height = nearestSide.screen.WorkingArea.Height;
mSnapRectangle.Location = nearestSide.screen.WorkingArea.Location.Add(
nearestSide.screen.WorkingArea.Width / 2, 0);
break;
case Side.Bottom:
mSnapRectangle.Width = nearestSide.screen.WorkingArea.Width;
mSnapRectangle.Height = nearestSide.screen.WorkingArea.Height / 2;
mSnapRectangle.Location = nearestSide.screen.WorkingArea.Location.Add(
0, nearestSide.screen.WorkingArea.Height / 2);
break;
case Side.None:
break;
}
if (nearestSide.Side == Side.None)
{
mSnapRectangle.Hide();
}
else
{
mSnapRectangle.Show();
}
mInvisibleWindow.CenterAt(currentMousePosition);
}
public void Update(Point currentMousePosition)
{
mInvisibleWindow.CenterAt(currentMousePosition);
var deltaX = currentMousePosition.X - mInitialMousePosition.X;
var deltaY = currentMousePosition.Y - mInitialMousePosition.Y;
switch (mResizeMode)
{
case ResizeMode.Left:
mNewWindowRect = new Rectangle(
mInitialWindowRect.Left + deltaX,
mInitialWindowRect.Top,
mInitialWindowRect.Width - deltaX,
mInitialWindowRect.Height);
break;
case ResizeMode.Top:
mNewWindowRect = new Rectangle(
mInitialWindowRect.Left,
mInitialWindowRect.Top + deltaY,
mInitialWindowRect.Width,
mInitialWindowRect.Height - deltaY);
break;
case ResizeMode.Right:
mNewWindowRect = new Rectangle(
mInitialWindowRect.Left,
mInitialWindowRect.Top,
mInitialWindowRect.Width + deltaX,
mInitialWindowRect.Height);
break;
case ResizeMode.Bottom:
mNewWindowRect = new Rectangle(
mInitialWindowRect.Left,
mInitialWindowRect.Top,
mInitialWindowRect.Width,
mInitialWindowRect.Height + deltaY);
break;
case ResizeMode.TopLeft:
mNewWindowRect = new Rectangle(
mInitialWindowRect.Left + deltaX,
mInitialWindowRect.Top + deltaY,
mInitialWindowRect.Width - deltaX,
mInitialWindowRect.Height - deltaY);
break;
case ResizeMode.TopRight:
mNewWindowRect = new Rectangle(
mInitialWindowRect.Left,
mInitialWindowRect.Top + deltaY,
mInitialWindowRect.Width + deltaX,
mInitialWindowRect.Height - deltaY);
break;
case ResizeMode.BottomLeft:
mNewWindowRect = new Rectangle(
mInitialWindowRect.Left + deltaX,
mInitialWindowRect.Top,
mInitialWindowRect.Width - deltaX,
mInitialWindowRect.Height + deltaY);
break;
case ResizeMode.BottomRight:
mNewWindowRect = new Rectangle(
mInitialWindowRect.Left,
mInitialWindowRect.Top,
mInitialWindowRect.Width + deltaX,
mInitialWindowRect.Height + deltaY);
break;
case ResizeMode.All:
default:
mNewWindowRect = new Rectangle(
mInitialWindowRect.Left - deltaX,
mInitialWindowRect.Top - deltaY,
mInitialWindowRect.Width + 2 * deltaX,
mInitialWindowRect.Height + 2 * deltaY);
break;
}
}
