protected override Size ArrangeOverride(Size arrangeSize)
{
IsLastSheetVisible = false;
if ((StartIndex < 0) || (StartIndex >= Children.Count))
{
StartIndex = 0;
}
if (Children.Count > 0)
{
for (int i = 0; (i < (StartIndex - 1)) && (i < Children.Count); i++)
{
(Children[i] as SheetTab).Arrange(_rcEmpty);
}
double x = 0.0;
x += Offset;
double height = arrangeSize.Height;
double width;
int num5 = StartIndex - 1;
if (num5 >= 0)
{
SheetTab tab = Children[num5] as SheetTab;
if (tab.Visible)
{
width = tab.DesiredSize.Width;
tab.Arrange(new Rect(-width, 0.0, width, height));
x = 8.0 + Offset;
}
else
{
tab.Arrange(_rcEmpty);
}
}
for (int j = StartIndex; j < Children.Count; j++)
{
SheetTab tab = Children[j] as SheetTab;
if (tab.Visible)
{
width = tab.DesiredSize.Width;
tab.Arrange(new Rect(x, 0.0, width, height));
x += width;
}
else
{
tab.Arrange(_rcEmpty);
}
}
IsLastSheetVisible = (x + 4.0) < RenderSize.Width;
}
_arrangeSize = arrangeSize;
RectangleGeometry geometry = new RectangleGeometry();
geometry.Rect = new Rect(0.0, 0.0, arrangeSize.Width, arrangeSize.Height);
Clip = geometry;
return(arrangeSize);
}
public void NewTab(int sheetIndex)
{
StopTabEditing(false);
SheetTab tab = new SheetTab(this)
{
SheetIndex = sheetIndex
};
int count = TabsPresenter.Children.Count;
if (Excel.TabStripInsertTab && (TabsPresenter.Children.Count > 0))
{
count = TabsPresenter.Children.Count - 1;
}
TabsPresenter.Children.Insert(count, tab);
TabsPresenter.ReCalculateStartIndex(0, TabsPresenter.Children.Count - 1);
}
void LoadTabs()
{
for (int i = 0; i < Excel.Sheets.Count; i++)
{
SheetTab tab = new SheetTab(this);
tab.SheetIndex = i;
TabsPresenter.Children.Add(tab);
}
if (Excel.TabStripInsertTab)
{
_newTab = new SheetTab(this);
TabsPresenter.Children.Add(_newTab);
}
ActiveSheet(Excel.ActiveSheetIndex, false);
}
void StartTabEditing(Point point)
{
SheetTab tab = GetHitSheetTab(point);
if (tab != null && tab.SheetIndex == Workbook.ActiveSheetIndex && tab != _editingTab)
{
if (IsEditing)
{
StopTabEditing(false);
}
tab.PrepareForEditing();
IsEditing = true;
_editingTab = tab;
}
}
public void StopTabEditing(bool cancel)
{
if (!IsEditing)
{
return;
}
string text = _editingTab.GetEditText();
if (!cancel && !string.IsNullOrEmpty(text) && IsValidSheetName(text))
{
SheetRenameUndoAction command = new SheetRenameUndoAction(Workbook.Sheets[_editingTab.SheetIndex], text);
Excel.DoCommand(command);
}
_editingTab.PrepareForDisplay();
_editingTab = null;
IsEditing = false;
}
void ActiveSheet(int p_sheetIndex, bool raiseEvent)
{
if (TabsPresenter.Children.Count == 0 ||
p_sheetIndex < 0 ||
p_sheetIndex >= TabsPresenter.Children.Count)
{
return;
}
SheetTab tab = TabsPresenter.Children[p_sheetIndex] as SheetTab;
if (tab.SheetIndex == p_sheetIndex && tab != _activeTab)
{
if (raiseEvent)
{
CancelEventArgs args = new CancelEventArgs();
if (!tab.IsActive)
{
OnActiveTabChanging((EventArgs)args);
}
if (!args.Cancel)
{
if (_activeTab != null)
{
_activeTab.IsActive = false;
}
tab.IsActive = true;
_activeTab = tab;
OnActiveTabChanged(EventArgs.Empty);
}
}
else
{
if (_activeTab != null)
{
_activeTab.IsActive = false;
}
tab.IsActive = true;
_activeTab = tab;
}
}
}
public void ProcessTap(Point point)
{
SheetTab touchHitSheetTab = GetHitSheetTab(point);
if (touchHitSheetTab == null)
{
return;
}
TabsPresenter tabsPresenter = TabsPresenter;
if (touchHitSheetTab == _newTab)
{
if (!Workbook.Protect)
{
OnNewTabNeeded(EventArgs.Empty);
if (tabsPresenter.Children.Count > 1)
{
ActiveSheet(((SheetTab)tabsPresenter.Children[tabsPresenter.Children.Count - 2]).SheetIndex, true);
}
}
}
else
{
int index = TabsPresenter.Children.IndexOf(touchHitSheetTab);
if (index == (TabsPresenter.StartIndex - 1))
{
TabsPresenter.NavigateToPrevious();
}
else if (TabsPresenter.ReCalculateStartIndex(TabsPresenter.StartIndex, index))
{
TabsPresenter.InvalidateMeasure();
TabsPresenter.InvalidateArrange();
}
if (touchHitSheetTab != _activeTab)
{
ActiveSheet(touchHitSheetTab.SheetIndex, true);
}
}
Excel.RaiseSheetTabClick(touchHitSheetTab.SheetIndex);
}
/// <summary>
/// Tab项个数不同时重新加载，相同时刷新名称
/// </summary>
public void UpdateTabs()
{
int cnt = Excel.Sheets.Count;
if (_newTab != null)
{
cnt += 1;
}
if (cnt != TabsPresenter.Children.Count)
{
TabsPresenter.Children.Clear();
_newTab = null;
LoadTabs();
}
else if (TabsPresenter.Children.Count > 0)
{
foreach (SheetTab tab in TabsPresenter.Children)
{
tab.PrepareForDisplay();
}
}
}
void ProcessNavigation(int nextIndex)
{
SheetTab tab = TabsPresenter.Children[nextIndex] as SheetTab;
if (((tab != null) && (tab.SheetIndex != -1)) && (tab != null))
{
TabsPresenter tabsPresenter = TabsPresenter;
if (tab == _newTab)
{
if (!Workbook.Protect)
{
OnNewTabNeeded(EventArgs.Empty);
if (tabsPresenter.Children.Count > 1)
{
ActiveSheet(((SheetTab)tabsPresenter.Children[tabsPresenter.Children.Count - 2]).SheetIndex, true);
}
}
}
else
{
int index = tabsPresenter.Children.IndexOf(tab);
if (index == (tabsPresenter.StartIndex - 1))
{
tabsPresenter.NavigateToPrevious();
}
else if (tabsPresenter.ReCalculateStartIndex(tabsPresenter.StartIndex, index))
{
tabsPresenter.InvalidateMeasure();
tabsPresenter.InvalidateArrange();
}
if (tab != _activeTab)
{
ActiveSheet(tab.SheetIndex, true);
}
}
Excel.RaiseSheetTabClick(tab.SheetIndex);
}
}
public void ProcessMouseClickSheetTab(PointerRoutedEventArgs args)
{
SheetTab hitSheetTab = GetHitSheetTab(args.GetCurrentPoint(null).Position);
if (hitSheetTab != null)
{
TabsPresenter tabsPresenter = TabsPresenter;
if (hitSheetTab == _newTab)
{
if (!Workbook.Protect)
{
OnNewTabNeeded(EventArgs.Empty);
if (tabsPresenter.Children.Count > 1)
{
ActiveSheet(((SheetTab)tabsPresenter.Children[tabsPresenter.Children.Count - 2]).SheetIndex, true);
}
}
}
else
{
int index = TabsPresenter.Children.IndexOf(hitSheetTab);
if (index == (TabsPresenter.StartIndex - 1))
{
TabsPresenter.NavigateToPrevious();
}
else if (TabsPresenter.ReCalculateStartIndex(TabsPresenter.StartIndex, index))
{
TabsPresenter.InvalidateMeasure();
TabsPresenter.InvalidateArrange();
}
if (hitSheetTab != _activeTab)
{
ActiveSheet(hitSheetTab.SheetIndex, true);
}
}
Excel.RaiseSheetTabClick(hitSheetTab.SheetIndex);
}
}
public void UpdateInsertNewTab()
{
if (Excel.TabStripInsertTab)
{
if (_newTab == null)
{
_newTab = new SheetTab(this);
}
if (!TabsPresenter.Children.Contains(_newTab))
{
TabsPresenter.Children.Add(_newTab);
}
if (IsLoaded)
{
TabsPresenter.ReCalculateStartIndex(0, TabsPresenter.Children.Count - 1);
}
}
else if (_newTab != null)
{
TabsPresenter.Children.Remove(_newTab);
_newTab = null;
}
}
