/// <summary>
/// Handle keys related to scrolling.
/// </summary>
/// <param name="key">The key to handle.</param>
/// <returns>A value indicating whether the key was handled.</returns>
private bool HandleScrollKeys(Key key)
{
ScrollViewer scrollHost = ItemsControlHelper.ScrollHost;
if (scrollHost != null)
{
switch (key)
{
case Key.PageUp:
// Move horizontally if we've run out of room vertically
if (!NumericExtensions.IsGreaterThan(scrollHost.ExtentHeight, scrollHost.ViewportHeight))
{
scrollHost.PageLeft();
}
else
{
scrollHost.PageUp();
}
return(true);
case Key.PageDown:
// Move horizontally if we've run out of room vertically
if (!NumericExtensions.IsGreaterThan(scrollHost.ExtentHeight, scrollHost.ViewportHeight))
{
scrollHost.PageRight();
}
else
{
scrollHost.PageDown();
}
return(true);
case Key.Home:
scrollHost.ScrollToTop();
return(true);
case Key.End:
scrollHost.ScrollToBottom();
return(true);
case Key.Left:
scrollHost.LineLeft();
return(true);
case Key.Right:
scrollHost.LineRight();
return(true);
case Key.Up:
scrollHost.LineUp();
return(true);
case Key.Down:
scrollHost.LineDown();
return(true);
}
}
return(false);
}
private bool HandleScrollKeys(Key key)
{
ScrollViewer scroller = ScrollHost;
if (scroller != null)
{
bool invert = (FlowDirection == FlowDirection.RightToLeft);
switch (key)
{
case Key.Up:
scroller.LineUp();
return(true);
case Key.Down:
scroller.LineDown();
return(true);
case Key.Left:
if (invert)
{
scroller.LineRight();
}
else
{
scroller.LineLeft();
}
return(true);
case Key.Right:
if (invert)
{
scroller.LineLeft();
}
else
{
scroller.LineRight();
}
return(true);
case Key.Home:
scroller.ScrollToTop();
return(true);
case Key.End:
scroller.ScrollToBottom();
return(true);
case Key.PageUp:
//if vertically scrollable - go vertical, otherwise horizontal
if (DoubleUtil.GreaterThan(scroller.ExtentHeight, scroller.ViewportHeight))
{
scroller.PageUp();
}
else
{
scroller.PageLeft();
}
return(true);
case Key.PageDown:
//if vertically scrollable - go vertical, otherwise horizontal
if (DoubleUtil.GreaterThan(scroller.ExtentHeight, scroller.ViewportHeight))
{
scroller.PageDown();
}
else
{
scroller.PageRight();
}
return(true);
}
}
return(false);
}
private void MainWindow_Loaded(object sender, RoutedEventArgs e)
{
// ScrollViewer を取得する
Func<DependencyObject, ScrollViewer> getChildVisual = null;
getChildVisual = dobj =>
{
if (dobj is ScrollViewer) return dobj as ScrollViewer;
int count = VisualTreeHelper.GetChildrenCount(dobj);
for (int i = 0; i < count; i++)
{
var ret = getChildVisual(VisualTreeHelper.GetChild(dobj, i));
if (ret != null) return ret;
}
return null;
};
var sv = getChildVisual(TimelineTabControl);
if (sv == null) return;
_mainViewer = sv;
_mainViewer.PreviewMouseWheel += (_, __) =>
{
__.Handled = true;
if (__.Delta < 0)
{
_mainViewer.LineDown();
}
else
{
_mainViewer.LineUp();
}
};
if ((string.IsNullOrEmpty(Settings.Default.Username) || string.IsNullOrEmpty(Settings.Default.Password)) && (string.IsNullOrEmpty(Settings.Default.Token) || string.IsNullOrEmpty(Settings.Default.TokenSecret)))
{
SettingButton_Click(null, null);
}
else
{
// Twitter へログイン
Login();
}
this.Topmost = Settings.Default.AlwaysOnTop;
APILimitRemainText.SetBinding(TextBlock.TextProperty, new Binding("TClient.RateLimitRemain") { Source = this, FallbackValue = 0, StringFormat = "API请求剩余：\t{0}", Mode = BindingMode.OneWay, TargetNullValue = 0 });
APILimitTotalText.SetBinding(TextBlock.TextProperty, new Binding("TClient.TotalRateLimit") { Source = this, FallbackValue = 0, StringFormat = "API请求总量：\t{0}", Mode = BindingMode.OneWay, TargetNullValue = 0 });
APILimitResetText.SetBinding(TextBlock.TextProperty, new Binding("TClient.ResetTimeString") { Source = this, FallbackValue = 0, StringFormat = "下次重置时间：\t{0}", Mode = BindingMode.OneWay, TargetNullValue = 0 });
//this.client.PropertyChanged+=new PropertyChangedEventHandler((Sender,eventArg)=>
//{
// if (eventArg.PropertyName=="RateLimitRemain")
// {
// this.AsyncInvoke(() => { this.APILimitRemainText.Text = string.Format("API请求剩余：\t{0}", client.RateLimitRemain); });
// }
// else if (eventArg.PropertyName=="TotalRateLimit")
// {
// this.AsyncInvoke(() => { this.APILimitTotalText.Text = string.Format("API请求总量：\t{0}", client.TotalRateLimit); });
// }
// else if (eventArg.PropertyName=="ResetTimeString")
// {
// this.AsyncInvoke(() => { this.APILimitResetText.Text = string.Format("下次重置时间：\t{0}", client.ResetTimeString); });
// }
//});
}
private static void Scroll(ScrollViewer scrollViewer, DragEventArgs e)
{
if (scrollViewer != null) {
var position = e.GetPosition(scrollViewer);
var scrollMargin = Math.Min(scrollViewer.FontSize * 2, scrollViewer.ActualHeight / 2);
if (position.X >= scrollViewer.ActualWidth - scrollMargin &&
scrollViewer.HorizontalOffset < scrollViewer.ExtentWidth - scrollViewer.ViewportWidth) {
scrollViewer.LineRight();
} else if (position.X < scrollMargin && scrollViewer.HorizontalOffset > 0) {
scrollViewer.LineLeft();
} else if (position.Y >= scrollViewer.ActualHeight - scrollMargin &&
scrollViewer.VerticalOffset < scrollViewer.ExtentHeight - scrollViewer.ViewportHeight) {
scrollViewer.LineDown();
} else if (position.Y < scrollMargin && scrollViewer.VerticalOffset > 0) {
scrollViewer.LineUp();
}
}
}
private void OnMouseMove(object sender, MouseEventArgs e)
{
if (mouseDown)
{
if (DateTime.UtcNow > lastScrollTime.AddMilliseconds(100))
{
Point currentPointWin = Mouse.GetPosition(scrollViewer);
if (currentPointWin.Y < 16)
{
scrollViewer.LineUp();
scrollViewer.UpdateLayout();
lastScrollTime = DateTime.UtcNow;
}
if (currentPointWin.Y > scrollViewer.ActualHeight - 16)
{
scrollViewer.LineDown();
scrollViewer.UpdateLayout();
lastScrollTime = DateTime.UtcNow;
}
}
Point currentPoint = Mouse.GetPosition(content);
double width = currentPoint.X - startPoint.X + 1;
double height = currentPoint.Y - startPoint.Y + 1;
double left = startPoint.X;
double top = startPoint.Y;
if (isFirstMove)
{
if (Math.Abs(width) <= SystemParameters.MinimumHorizontalDragDistance &&
Math.Abs(height) <= SystemParameters.MinimumVerticalDragDistance)
{
return;
}
isFirstMove = false;
if (!SelectionMultiple.IsControlKeyDown)
{
if (!treeView.ClearSelectionByRectangle())
{
EndAction();
return;
}
}
}
// Debug.WriteLine(string.Format("Drawing: {0};{1};{2};{3}",startPoint.X,startPoint.Y,width,height));
if (width < 1)
{
width = Math.Abs(width - 1) + 1;
left = startPoint.X - width + 1;
}
if (height < 1)
{
height = Math.Abs(height - 1) + 1;
top = startPoint.Y - height + 1;
}
border.Width = width;
Canvas.SetLeft(border, left);
border.Height = height;
Canvas.SetTop(border, top);
border.Visibility = Visibility.Visible;
double right = left + width - 1;
double bottom = top + height - 1;
// Debug.WriteLine(string.Format("left:{1};right:{2};top:{3};bottom:{4}", null, left, right, top, bottom));
SelectionMultiple selection = (SelectionMultiple)treeView.Selection;
bool foundFocusItem = false;
foreach (var item in items)
{
FrameworkElement itemContent = (FrameworkElement)item.Template.FindName("PART_Header", item);
if (itemContent == null)
{
continue;
}
Point p = ((FrameworkElement)itemContent.Parent).TransformToAncestor(content).Transform(new Point());
double itemLeft = p.X;
double itemRight = p.X + itemContent.ActualWidth - 1;
double itemTop = p.Y;
double itemBottom = p.Y + itemContent.ActualHeight - 1;
// Debug.WriteLine(string.Format("element:{0};itemleft:{1};itemright:{2};itemtop:{3};itembottom:{4}",item.DataContext,itemLeft,itemRight,itemTop,itemBottom));
// Compute the current input states for determining the new selection state of the item
bool intersect = !(itemLeft > right || itemRight <left || itemTop> bottom || itemBottom < top);
bool initialSelected = initialSelection != null && initialSelection.Contains(item.DataContext);
bool ctrl = SelectionMultiple.IsControlKeyDown;
// Decision matrix:
// If the Ctrl key is pressed, each intersected item will be toggled from its initial selection.
// Without the Ctrl key, each intersected item is selected, others are deselected.
//
// newSelected
// ─────────┬───────────────────────
// │ intersect
// │ 0 │ 1
// ├───────────┴───────────
// │ initial
// │ 0 │ 1 │ 0 │ 1
// ─────────┼─────┼─────┼─────┼─────
// ctrl 0 │ 0 │ 0 │ 1 │ 1 = intersect
// ─────────┼─────┼─────┼─────┼─────
// 1 │ 0 │ 1 │ 1 │ 0 = intersect XOR initial
//
bool newSelected = intersect ^ (initialSelected && ctrl);
// The new selection state for this item has been determined. Apply it.
if (newSelected)
{
// The item shall be selected
if (!treeView.SelectedItems.Contains(item.DataContext))
{
// The item is not currently selected. Try to select it.
if (!selection.SelectByRectangle(item))
{
if (selection.LastCancelAll)
{
EndAction();
return;
}
}
}
}
else
{
// The item shall be deselected
if (treeView.SelectedItems.Contains(item.DataContext))
{
// The item is currently selected. Try to deselect it.
if (!selection.DeselectByRectangle(item))
{
if (selection.LastCancelAll)
{
EndAction();
return;
}
}
}
}
// Always focus and bring into view the item under the mouse cursor
if (!foundFocusItem &&
currentPoint.X >= itemLeft && currentPoint.X <= itemRight &&
currentPoint.Y >= itemTop && currentPoint.Y <= itemBottom)
{
FocusHelper.Focus(item, true);
scrollViewer.UpdateLayout();
foundFocusItem = true;
}
}
if (e != null)
{
e.Handled = true;
}
}
}
/// <summary>
/// Handle keys related to scrolling.
/// </summary>
/// <param name="key">The key to handle.</param>
/// <returns>A value indicating whether the key was handled.</returns>
private bool HandleScrollKeys(Key key)
{
ScrollViewer scrollHost = ItemsControlHelper.ScrollHost;
if (scrollHost != null)
{
// Some keys (e.g. Left/Right) need to be translated in RightToLeft mode
Key invariantKey = InteractionHelper.GetLogicalKey(FlowDirection, key);
switch (invariantKey)
{
case Key.PageUp:
// Move horizontally if we've run out of room vertically
if (!NumericExtensions.IsGreaterThan(scrollHost.ExtentHeight, scrollHost.ViewportHeight))
{
scrollHost.PageLeft();
}
else
{
scrollHost.PageUp();
}
return(true);
case Key.PageDown:
// Move horizontally if we've run out of room vertically
if (!NumericExtensions.IsGreaterThan(scrollHost.ExtentHeight, scrollHost.ViewportHeight))
{
scrollHost.PageRight();
}
else
{
scrollHost.PageDown();
}
return(true);
case Key.Home:
scrollHost.ScrollToTop();
return(true);
case Key.End:
scrollHost.ScrollToBottom();
return(true);
case Key.Left:
scrollHost.LineLeft();
return(true);
case Key.Right:
scrollHost.LineRight();
return(true);
case Key.Up:
scrollHost.LineUp();
return(true);
case Key.Down:
scrollHost.LineDown();
return(true);
}
}
return(false);
}
// Token: 0x060058E9 RID: 22761 RVA: 0x00189730 File Offset: 0x00187930
private bool HandleScrollKeys(Key key)
{
ScrollViewer scrollHost = base.ScrollHost;
if (scrollHost != null)
{
bool flag = base.FlowDirection == FlowDirection.RightToLeft;
switch (key)
{
case Key.Prior:
if (DoubleUtil.GreaterThan(scrollHost.ExtentHeight, scrollHost.ViewportHeight))
{
scrollHost.PageUp();
}
else
{
scrollHost.PageLeft();
}
return(true);
case Key.Next:
if (DoubleUtil.GreaterThan(scrollHost.ExtentHeight, scrollHost.ViewportHeight))
{
scrollHost.PageDown();
}
else
{
scrollHost.PageRight();
}
return(true);
case Key.End:
scrollHost.ScrollToBottom();
return(true);
case Key.Home:
scrollHost.ScrollToTop();
return(true);
case Key.Left:
if (flag)
{
scrollHost.LineRight();
}
else
{
scrollHost.LineLeft();
}
return(true);
case Key.Up:
scrollHost.LineUp();
return(true);
case Key.Right:
if (flag)
{
scrollHost.LineLeft();
}
else
{
scrollHost.LineRight();
}
return(true);
case Key.Down:
scrollHost.LineDown();
return(true);
}
}
return(false);
}
