protected override void OnDragDrop(DragEventArgs drgevent)
{
if (AllowDrop)
{
try
{
if (mblnDragging)
{
TabPages.Clear();
TabPages.AddRange((TabPage[])mPages.ToArray(typeof(TabPage)));
SelectedTab = mDragTab;
mblnDragging = false;
mDragTab = null;
if (AfterDragDrop != null)
{
AfterDragDrop(this, EventArgs.Empty);
}
}
}
catch
{
}
}
}
protected override void OnDragOver(System.Windows.Forms.DragEventArgs e)
{
base.OnDragOver(e);
Point pt = new Point(e.X, e.Y);
//We need client coordinates.
pt = PointToClient(pt);
//Get the tab we are hovering over.
TabPage hover_tab = GetTabPageByTab(pt);
//Make sure we are on a tab.
if (hover_tab != null)
{
//Make sure there is a TabPage being dragged.
if (e.Data.GetDataPresent(typeof(TabPage)))
{
e.Effect = DragDropEffects.Move;
TabPage drag_tab = (TabPage)e.Data.GetData(typeof(TabPage));
int item_drag_index = FindIndex(drag_tab);
int drop_location_index = FindIndex(hover_tab);
//Don't do anything if we are hovering over ourself.
if (item_drag_index != drop_location_index)
{
ArrayList pages = new ArrayList();
//Put all tab pages into an array.
for (int i = 0; i < TabPages.Count; i++)
{
//Except the one we are dragging.
if (i != item_drag_index)
{
pages.Add(TabPages[i]);
}
}
//Now put the one we are dragging it at the proper location.
pages.Insert(drop_location_index, drag_tab);
//Make them all go away for a nanosec.
TabPages.Clear();
//Add them all back in.
TabPages.AddRange((TabPage[])pages.ToArray(typeof(TabPage)));
//Make sure the drag tab is selected.
SelectedTab = drag_tab;
}
}
}
else
{
e.Effect = DragDropEffects.None;
}
}
protected override void OnDragOver(System.Windows.Forms.DragEventArgs e)//拖過
{
base.OnDragOver(e);
Point pt = new Point(e.X, e.Y);//抓出目前座標
//We need client coordinates.
pt = PointToClient(pt);//將指定的螢幕點的位置計算為工作區座標 (Client Coordinate)。-public class Control內的成員函數
//Get the tab we are hovering over.
TabPage hover_tab = GetTabPageByTab(pt);//從工作區座標計算出被重疊的目的TabPage
//Make sure we are on a tab.
if (hover_tab != null)
{
//Make sure there is a TabPage being dragged.
if (e.Data.GetDataPresent(typeof(TabPage)))
{
e.Effect = DragDropEffects.Move;
TabPage drag_tab = (TabPage)e.Data.GetData(typeof(TabPage));
int item_drag_index = FindIndex(drag_tab); //找出目前TabPage所在位置
int drop_location_index = FindIndex(hover_tab); //找出目前被重疊TabPage所在位置
//Don't do anything if we are hovering over ourself.
if (item_drag_index != drop_location_index)//確定有移動
{
ArrayList pages = new ArrayList();
//Put all tab pages into an array.
for (int i = 0; i < TabPages.Count; i++)//把所有不是被拖拉的物件記錄下來
{
//Except the one we are dragging.
if (i != item_drag_index)
{
pages.Add(TabPages[i]);
}
}
//Now put the one we are dragging it at the proper location.
pages.Insert(drop_location_index, drag_tab);//把是被拖拉的物件指定到目的之位置
//Make them all go away for a nanosec.
TabPages.Clear();//清空所有內容
//Add them all back in.
TabPages.AddRange((TabPage[])pages.ToArray(typeof(TabPage)));//重新填入所有頁面
//Make sure the drag tab is selected.
SelectedTab = drag_tab;//指定目前顯示頁面
}
}
}
else
{
e.Effect = DragDropEffects.None;
}
}
private void SetTabProperties(XtraTabPage page, XtraTabSmartPartInfo smartPartInfo)
{
page.Text = String.IsNullOrEmpty(smartPartInfo.Title) ? page.Text : smartPartInfo.Title;
try
{
XtraTabPage currentSelection = SelectedTabPage;
callComposerActivateOnIndexChange = false;
if (smartPartInfo.Position == TabPosition.Beginning)
{
XtraTabPage[] tabPages = GetTabPages();
TabPages.Clear();
TabPages.Add(page);
TabPages.AddRange(tabPages);
}
else if (TabPages.Contains(page) == false)
{
TabPages.Add(page);
}
page.BackColor = smartPartInfo.BackColor;
page.ForeColor = smartPartInfo.ForeColor;
page.Image = smartPartInfo.Image;
page.ImageIndex = smartPartInfo.ImageIndex;
page.PageEnabled = smartPartInfo.PageEnabled;
page.PageVisible = smartPartInfo.PageVisible;
page.ShowCloseButton = smartPartInfo.ShowCloseButton;
if (smartPartInfo.Text != null || smartPartInfo.Text != null) // don't apply if not set
{
page.Text = smartPartInfo.Text ?? smartPartInfo.Title;
}
page.Tooltip = smartPartInfo.Tooltip;
if (smartPartInfo.PageHeaderFont != null)
{
page.Appearance.Header.Font = smartPartInfo.PageHeaderFont;
page.Appearance.Header.Options.UseFont = true;
}
SelectedTabPage = currentSelection; // preserve selection through the operation
}
finally
{
callComposerActivateOnIndexChange = true;
}
}
public ToolTabs(IEnumerable <ToolTab> tabs, IEnumerable <Bitmap> images)
{
TabPages.AddRange(tabs.ToArray());
Dock = DockStyle.Fill;
this.SizeMode = TabSizeMode.Fixed;
this.ItemSize = new System.Drawing.Size(36, 34);
this.DrawMode = TabDrawMode.OwnerDrawFixed;
this.DrawItem += tabControlDrawItem;
this.Images = images.ToArray();
this.Deselected += (sender, args) =>
{
var toolTab = (ToolTab)args.TabPage;
toolTab.TabDeselected();
toolTab.ClearEvents();
};
this.Selecting += (sender, args) =>
{
var toolTab = (ToolTab)args.TabPage;
toolTab.TabSelected();
};
}
