private void ContinueResizeAndDrag(InputContext context)
{
if (!_isResizing && !_isDragging)
{
// Nothing to do.
return;
}
var screen = Screen;
var inputService = InputService;
// ----- Stop dragging/resizing
bool cancel = inputService.IsDown(Keys.Escape);
if (cancel)
{
inputService.IsKeyboardHandled = true;
RestoreBounds();
}
if (cancel // <ESC> cancels dragging/resizing.
|| inputService.IsUp(MouseButtons.Left) // Mouse button is up.
|| inputService.IsMouseOrTouchHandled // Mouse was handled by another control.
|| _isResizing && !CanResize // CanResize has been reset by user during resizing.
|| _isDragging && !CanDrag) // CanDrag has been reset by user during dragging.
{
screen.UIService.Cursor = null;
_setSpecialCursor = false;
_isResizing = false;
_isDragging = false;
return;
}
// Clamp mouse position to screen. (Only relevant if game runs in windowed-mode.)
Vector2F screenMousePosition = context.ScreenMousePosition;
float left = screen.ActualX;
float right = left + screen.ActualWidth;
float top = screen.ActualY;
float bottom = top + screen.ActualHeight;
screenMousePosition.X = MathHelper.Clamp(screenMousePosition.X, left, right);
screenMousePosition.Y = MathHelper.Clamp(screenMousePosition.Y, top, bottom);
Vector2F delta = screenMousePosition - _mouseStartPosition;
// Undo render transform of screen.
if (screen.HasRenderTransform)
delta = screen.RenderTransform.FromRenderDirection(delta);
if (delta != Vector2F.Zero)
{
// ----- Handle ongoing resizing operation.
if (_isResizing)
{
// Resizing only works when there is no render transform or the render
// transform origin is the top, left corner. Otherwise, it does not work
// correct because resizing the window simultaneously changes the render
// transform!
// Restore original render transform.
var transform = new Rendering.RenderTransform(_startPosition, _startSize.X, _startSize.Y, RenderTransformOrigin, RenderScale, RenderRotation, RenderTranslation);
// Apply delta in local space of window.
delta = transform.FromRenderDirection(delta);
// Ensure limits.
if ((_resizeDirection & ResizeDirection.E) != 0)
{
float width = _startSize.X + delta.X;
width = MathHelper.Clamp(width, MinWidth, MaxWidth);
delta.X = width - _startSize.X;
}
else if ((_resizeDirection & ResizeDirection.W) != 0)
{
float width = _startSize.X - delta.X;
width = MathHelper.Clamp(width, MinWidth, MaxWidth);
delta.X = _startSize.X - width;
}
else
{
delta.X = 0;
}
if ((_resizeDirection & ResizeDirection.S) != 0)
{
float height = _startSize.Y + delta.Y;
height = MathHelper.Clamp(height, MinHeight, MaxHeight);
delta.Y = height - _startSize.Y;
}
else if ((_resizeDirection & ResizeDirection.N) != 0)
{
float height = _startSize.Y - delta.Y;
height = MathHelper.Clamp(height, MinHeight, MaxHeight);
delta.Y = _startSize.Y - height;
}
else
{
delta.Y = 0;
}
Vector2F topLeft = _startPosition;
Vector2F bottomRight = _startPosition + _startSize;
switch (_resizeDirection)
{
case ResizeDirection.N:
case ResizeDirection.W:
case ResizeDirection.NW:
topLeft += delta;
break;
case ResizeDirection.NE:
bottomRight.X += delta.X;
topLeft.Y += delta.Y;
break;
case ResizeDirection.E:
case ResizeDirection.SE:
case ResizeDirection.S:
bottomRight += delta;
break;
case ResizeDirection.SW:
topLeft.X += delta.X;
bottomRight.Y += delta.Y;
break;
}
topLeft = transform.ToRenderPosition(topLeft);
bottomRight = transform.ToRenderPosition(bottomRight);
X = topLeft.X; // Note: Setting X, Y changes the render transform!
Y = topLeft.Y;
transform = RenderTransform;
topLeft = transform.FromRenderPosition(topLeft);
bottomRight = transform.FromRenderPosition(bottomRight);
Width = bottomRight.X - topLeft.X;
Height = bottomRight.Y - topLeft.Y;
InvalidateArrange();
inputService.IsMouseOrTouchHandled = true;
return;
}
// ----- Handle ongoing dragging operation.
if (_isDragging)
{
X = _startPosition.X + delta.X;
Y = _startPosition.Y + delta.Y;
InvalidateArrange();
inputService.IsMouseOrTouchHandled = true;
}
}
}
private void ContinueResizeAndDrag(InputContext context)
{
if (!_isResizing && !_isDragging)
{
// Nothing to do.
return;
}
var screen = Screen;
var inputService = InputService;
// ----- Stop dragging/resizing
bool cancel = inputService.IsDown(Keys.Escape);
if (cancel)
{
inputService.IsKeyboardHandled = true;
RestoreBounds();
}
if (cancel // <ESC> cancels dragging/resizing.
|| inputService.IsUp(MouseButtons.Left) // Mouse button is up.
|| inputService.IsMouseOrTouchHandled // Mouse was handled by another control.
|| _isResizing && !CanResize // CanResize has been reset by user during resizing.
|| _isDragging && !CanDrag) // CanDrag has been reset by user during dragging.
{
screen.UIService.Cursor = null;
_setSpecialCursor = false;
_isResizing = false;
_isDragging = false;
return;
}
// Clamp mouse position to screen. (Only relevant if game runs in windowed-mode.)
Vector2F screenMousePosition = context.ScreenMousePosition;
float left = screen.ActualX;
float right = left + screen.ActualWidth;
float top = screen.ActualY;
float bottom = top + screen.ActualHeight;
screenMousePosition.X = MathHelper.Clamp(screenMousePosition.X, left, right);
screenMousePosition.Y = MathHelper.Clamp(screenMousePosition.Y, top, bottom);
Vector2F delta = screenMousePosition - _mouseStartPosition;
// Undo render transform of screen.
if (screen.HasRenderTransform)
delta = screen.RenderTransform.FromRenderDirection(delta);
if (delta != Vector2F.Zero)
{
// ----- Handle ongoing resizing operation.
if (_isResizing)
{
// Resizing only works when there is no render transform or the render
// transform origin is the top, left corner. Otherwise, it does not work
// correct because resizing the window simultaneously changes the render
// transform!
// Restore original render transform.
var transform = new Rendering.RenderTransform(_startPosition, _startSize.X, _startSize.Y, RenderTransformOrigin, RenderScale, RenderRotation, RenderTranslation);
// Apply delta in local space of window.
delta = transform.FromRenderDirection(delta);
// Ensure limits.
if ((_resizeDirection & ResizeDirection.E) != 0)
{
float width = _startSize.X + delta.X;
width = MathHelper.Clamp(width, MinWidth, MaxWidth);
delta.X = width - _startSize.X;
}
else if ((_resizeDirection & ResizeDirection.W) != 0)
{
float width = _startSize.X - delta.X;
width = MathHelper.Clamp(width, MinWidth, MaxWidth);
delta.X = _startSize.X - width;
}
else
{
delta.X = 0;
}
if ((_resizeDirection & ResizeDirection.S) != 0)
{
float height = _startSize.Y + delta.Y;
height = MathHelper.Clamp(height, MinHeight, MaxHeight);
delta.Y = height - _startSize.Y;
}
else if ((_resizeDirection & ResizeDirection.N) != 0)
{
float height = _startSize.Y - delta.Y;
height = MathHelper.Clamp(height, MinHeight, MaxHeight);
delta.Y = _startSize.Y - height;
}
else
{
delta.Y = 0;
}
Vector2F topLeft = _startPosition;
Vector2F bottomRight = _startPosition + _startSize;
switch (_resizeDirection)
{
case ResizeDirection.N:
case ResizeDirection.W:
case ResizeDirection.NW:
topLeft += delta;
break;
case ResizeDirection.NE:
bottomRight.X += delta.X;
topLeft.Y += delta.Y;
break;
case ResizeDirection.E:
case ResizeDirection.SE:
case ResizeDirection.S:
bottomRight += delta;
break;
case ResizeDirection.SW:
topLeft.X += delta.X;
bottomRight.Y += delta.Y;
break;
}
topLeft = transform.ToRenderPosition(topLeft);
bottomRight = transform.ToRenderPosition(bottomRight);
X = topLeft.X; // Note: Setting X, Y changes the render transform!
Y = topLeft.Y;
transform = RenderTransform;
topLeft = transform.FromRenderPosition(topLeft);
bottomRight = transform.FromRenderPosition(bottomRight);
Width = bottomRight.X - topLeft.X;
Height = bottomRight.Y - topLeft.Y;
InvalidateArrange();
inputService.IsMouseOrTouchHandled = true;
return;
}
// ----- Handle ongoing dragging operation.
if (_isDragging)
{
X = _startPosition.X + delta.X;
Y = _startPosition.Y + delta.Y;
InvalidateArrange();
inputService.IsMouseOrTouchHandled = true;
}
}
}
