private void TraceCurrentMousePoint(MouseEventArgs e)
{
var currentPoint = LayerContainer.GetMousePosition(true);
// 防止 currentPoint 不让其超出控件 renderSize 范围
var x = Math.Max(currentPoint.X, 0);
var y = Math.Max(currentPoint.Y, 0);
var startAutoScrollTimer = false;
if (_autoScrollTimer == null || !_autoScrollTimer.IsEnabled)
{
startAutoScrollTimer = AutoScroll();
}
if (startAutoScrollTimer)
{
_autoScrollTimer = new DispatcherTimer {
Interval = TimeSpan.FromSeconds(0.3)
};
_autoScrollTimer.Tick += delegate
{
if (e.LeftButton == MouseButtonState.Pressed && AutoScroll())
{
SetCurrentMousePoint(e);
MeasureDragingArea(_screenDataRowIndex);
return;
}
LayerContainer.ReleaseMouseCapture();
_autoScrollTimer.Stop();
};
_autoScrollTimer.Start();
}
_currentPoint = new Point(x, y);
}
protected override void OnParentMouseUp(object sender, MouseButtonEventArgs e)
{
if (_isMouseMove || IsDraging)
{
//do nothing
}
//else if (ClickCount < 2) // don't remove 这会影响EditControlLayer double click 编辑弹出框
//{
SetCurrentMousePoint(e);
if (LayerContainer.HeaderIsHitted()) // Column 全選 IsHeader(e.Source)
{
_screenDataRowIndex = 0;
_startPoint = new Point(LayerContainer.GetMousePosition(true).X, 0);
_currentPoint = new Point(_startPoint.X, GetItemsSourceCount() * Interval);
SetInitalDrawLocation();
}
MeasureDragingArea(_screenDataRowIndex);
e.Handled = true;
InvalidateVisual();
//}
IsDraging = false;
_isMouseMove = false;
//xe.Handled = !AxisYConverter.IsInViewRagne(_currentPoint.Y);
OnRangeSelected();
}
protected override void OnParentMouseDown(object sender, MouseButtonEventArgs e)
{
if (e.Source.IsNot <Rectangle>() && e.Source.IsNot <BlockGrid>())
{
return;
}
_screenDataRowIndex = AxisPanel.GetScreenTopRowIndex();
if (Keyboard.Modifiers == ModifierKeys.Shift && _startPoint != _unsetPoint && _currentPoint != _unsetPoint)
{
//只有一个选中
//if (_startPoint == _currentPoint)
//{
_currentPoint = LayerContainer.GetMousePosition(true);
//}
//else //已经选中多个
//{
//_startPoint = _currentPoint;
//}
}
else
{
_startPoint = LayerContainer.GetMousePosition(true);
_currentPoint = _startPoint;
}
//ClickCount = e.ClickCount;
SetInitalDrawLocation();
}
private void SetCurrentMousePoint(MouseEventArgs e)
{
var currentPoint = LayerContainer.GetMousePosition(true);
// 防止 currentPoint 不让其超出控件 renderSize 范围
var x = Math.Max(currentPoint.X, 0);
var y = Math.Max(currentPoint.Y, 0);
// 控制当mouse在边界外禁止响应x,y轴座标
if (currentPoint.X <= 0 || AxisPanel.ViewportRangeX.ViewMax < currentPoint.X)
{
y = _currentPoint.Y;
}
if (currentPoint.Y <= 0 || AxisPanel.ViewportRangeY.ViewMax < currentPoint.Y)
{
x = _currentPoint.X;
}
_currentPoint = new Point(x, y);
}