protected override void OnPaint(PaintEventArgs e)
{
e.Graphics.Clear(Color.White);
foreach (TabPage tabPage in TabPages)
{
int curIndex = TabPages.IndexOf(tabPage);
Rectangle tabRect = GetTabRect(curIndex);
var titleR = new Rectangle(tabRect.X, tabRect.Y, tabRect.Width, tabRect.Height);
var ntr = new Rectangle(tabRect.X + (curIndex == 0 ? 2 : 0), (tabRect.Y + tabRect.Height) - 3, tabRect.Width - (curIndex == 0 ? 4 : 2), 2);
if (Alignment == TabAlignment.Top)
{
e.Graphics.FillRectangle(SelectedIndex == curIndex ? Color.FromArgb(243, 63, 63) : Color.Silver, ntr);
e.Graphics.DrawString(tabPage.Text, Font, Color.Black, titleR, StringAlignment.Center);
}
else if (Alignment == TabAlignment.Right)
{
titleR = new Rectangle(titleR.X + 4, titleR.Y, titleR.Width, titleR.Height);
ntr = new Rectangle(tabRect.X, tabRect.Y + (curIndex == 0 ? 2 : 0), 2, tabRect.Height - (curIndex == 0 ? 4 : 2));
e.Graphics.FillRectangle(SelectedIndex == curIndex ? Color.FromArgb(243, 63, 63) : Color.Silver, ntr);
e.Graphics.DrawString(tabPage.Text, Font, Color.Black, titleR, StringAlignment.Near, StringAlignment.Center);
}
}
if (_displayBoundary)
{
e.Graphics.DrawLine(Color.FromArgb(243, 63, 63), 0, Height - 1, Width - 1, Height - 1);
}
base.OnPaint(e);
}
/// <summary>
/// Removes a tab
/// </summary>
/// <param name="Target">The tab that will be removed</param>
public void ProfileTabRemove(TabPage Target)
{
if (ReadOnlyMode)
{
System.Media.SystemSounds.Beep.Play();
return; // control not editable
}
// Remove tab but we still need to keep last regular one, the "New" and "Delete tabs.
if (TabPages.Count <= 3)
{
return;
}
// Mono workaround: Selection required otherwise empty tab will be shown after deletion
// Solution: Select last available tab (as it gets shifted due to deletion
// This way we force TabControl to re-select tab upon deletion
SelectedIndex = TabPages.Count - 3;
int index = TabPages.IndexOf(Target);
ProfileTabSelectedHandler((ProfileViewControl)Target.Controls["pvc"], ProfileTabSelectAction.Deleting);
TabPages.RemoveAt(index);
for (int i = TabPages.Count - 3; 0 <= i; i--)
{
TabPages[i].Text = (i + 1).ToString(); // Update tab names
}
// Mono workaround: Selection required otherwise empty tab will be shown after deletion
// Solution: Due to new selection the tab will be loaded properly again and no empty page is shown
SelectedIndex = (index == 0 ? 0 : index - 1);
}
private void ChangeTab(LcarsTabPage tab)
{
//Brings the provided tab to the front of all of the other tabs and sets it as
//the selected tab.
//NOTE: tab is used because if we used the property to set the selected tab,
//we would get into an 'endless loop' because the 'SelectedTab' property calls
//'ChangeTab' which in turn would call 'SelectedTab' again. Not good!
if (tab != null)
{
tab.BringToFront();
selectedTab = tab;
//Set the heading(the bar at the top)'s text to the tab's text
horizantalBar.Text = tab.Text;
//Set the selected tabs button's red alert to white and all others to normal
foreach (FlatButton mybutton in tabButtonPanel.Controls)
{
if (ReferenceEquals(mybutton.Tag, tab))
{
mybutton.AlertState = LcarsAlert.White;
}
else
{
mybutton.AlertState = LcarsAlert.Normal;
}
}
}
//Let the user of the control know that a tab has been selected.
SelectedTabChanged?.Invoke(tab, TabPages.IndexOf(tab));
}
protected override void OnDragOver(DragEventArgs e)
{
base.OnDragOver(e);
TabPage hoverTab = HoverTab();
if (hoverTab == null)
{
e.Effect = DragDropEffects.None;
}
else
{
if (e.Data.GetDataPresent(typeof(DwarfTabPage)))
{
e.Effect = DragDropEffects.Move;
TabPage dragTab = (TabPage)e.Data.GetData(typeof(DwarfTabPage));
if (hoverTab == dragTab)
{
return;
}
Rectangle tabRect = GetTabRect(TabPages.IndexOf(hoverTab));
tabRect.Inflate(-3, -3);
if (tabRect.Contains(PointToClient(new Point(e.X, e.Y))))
{
SwapTabPages(dragTab, hoverTab);
SelectedTab = dragTab;
}
}
}
}
void _MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Middle)
{
// Find out which tab has been clicked & close that file.
//
for (int i = 0; i < TabCount; i++)
{
if (GetTabRect(i).Contains(e.X, e.Y))
{
CloseFile((FileEditorTab)TabPages[i]);
}
}
}
if (e.Button == MouseButtons.Left)
{
// Left click already sets the target tab to selected so no need to do the stuff we do for the middle mouse button (looping through all the tabs)
//
int tabIndex = TabPages.IndexOf(SelectedTab);
Rectangle r = ConvertRectangleBounds_CloseButton(GetTabRect(tabIndex));
if (r.Contains(e.Location))
{
CloseFile(this.SelectedFileTab);
SelectedIndex = tabIndex;
}
}
}
public void AddTab(string filename = "")
{
if (TabPages.ContainsKey(filename))
{
return;
}
var tabPage = new TabPage();
if (string.IsNullOrEmpty(filename))
{
tabPage.Text = Strings.DocumentsTabControl_AddTab_NewFile + id;
tabPage.ImageIndex = 1;
tabPage.Name = Strings.DocumentsTabControl_AddTab_NewFile + id;
}
else
{
tabPage.Text = filename;
tabPage.ImageIndex = 0;
tabPage.Name = filename;
}
TabPages.Insert(TabPages.Count - 1, tabPage);
SelectedIndex = TabPages.IndexOf(tabPage);
id++;
}
/// <summary>
/// 绘制
/// </summary>
/// <param name="e"></param>
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
using (SolidBrush sb = new SolidBrush(Color.FromArgb(37, 37, 37)))
{
Rectangle all_back = new Rectangle(1, 1, Width - 2, Height - 2); //整个背景区域
e.Graphics.FillRectangle(sb, all_back);
Rectangle back = new Rectangle(ItemSize.Width + 1, 1, Width - ItemSize.Width - 2, Height - 2); //客户区
e.Graphics.FillRectangle(Brushes.White, back);
e.Graphics.DrawRectangle(Pens.Gray, back);
foreach (TabPage tab in TabPages) //Tab
{
Rectangle tab_rect = GetTabRect(TabPages.IndexOf(tab));
tab_rect = new Rectangle(tab_rect.X - 1, tab_rect.Y - 1, tab_rect.Width, tab_rect.Height);
if (this.SelectedTab == tab || TabPages.IndexOf(tab) == _mouse_over)
{
using (SolidBrush bsb = new SolidBrush(Color.FromArgb(51, 133, 255)))
{
e.Graphics.FillRectangle(bsb, tab_rect);
}
e.Graphics.DrawString(tab.Text, new Font("微软雅黑", 10), Brushes.White, new PointF(tab_rect.X + 18, tab_rect.Y + 20));
}
else
{
e.Graphics.FillRectangle(sb, tab_rect);
e.Graphics.DrawString(tab.Text, new Font("微软雅黑", 10), Brushes.White, new PointF(tab_rect.X + 18, tab_rect.Y + 20));
}
}
}
}
private void SwapTabPages(TabPage src, TabPage dst)
{
int srcIndex = TabPages.IndexOf(src);
int dstIndex = TabPages.IndexOf(dst);
if (PlatformHelper.GetPlatform() == Platform.Linux || PlatformHelper.GetPlatform() == Platform.OsX)
{
TabPages.Insert(dstIndex, src);
TabPages.Insert(srcIndex, dst);
}
else
{
TabPages[dstIndex] = src;
TabPages[srcIndex] = dst;
}
if (SelectedIndex == srcIndex)
{
SelectedIndex = dstIndex;
}
else if (SelectedIndex == dstIndex)
{
SelectedIndex = srcIndex;
}
Refresh();
}
public void CloseTab(TabPage tp, bool askConfirmation = false)
{
int index = TabPages.IndexOf(tp);
if (index < 0)
{
return;
}
if (!askConfirmation ||
!Program.Model.Settings.ShowCloseTabConfirmation ||
MessageBox.Show(
Program.Model.LocaleManager.GetLocalizedText(GetType().Name, "shouldClose"),
Program.Model.LocaleManager.GetLocalizedText(GetType().Name, "tabClose"),
MessageBoxButtons.YesNo, MessageBoxIcon.Question
) == DialogResult.Yes
)
{
TabPages.Remove(tp);
SelectedIndex = index != 0 ? index - 1 : 0;
this._btnCloseList.Clear();
this._recreate = true;
}
}
public void Repos(TabPage tpCurrent)
{
Button btnClose = CloseButton(tpCurrent);
if (btnClose != null)
{
int tpIndex = TabPages.IndexOf(tpCurrent);
if (tpIndex >= 0)
{
Rectangle rctCurrent = GetTabRect(tpIndex);
if (SelectedTab == tpCurrent)
{
btnClose.Size = new Size(rctCurrent.Height - 1, rctCurrent.Height - 1);
btnClose.Location = new Point(rctCurrent.X + rctCurrent.Width - rctCurrent.Height, rctCurrent.Y + 1);
}
else
{
btnClose.Size = new Size(rctCurrent.Height - 3, rctCurrent.Height - 2);
btnClose.Location = new Point(rctCurrent.X + rctCurrent.Width - rctCurrent.Height - 1, rctCurrent.Y + 1);
}
btnClose.Visible = ShowCloseButtons;
btnClose.BringToFront();
}
}
}
protected override void WndProc(ref Message m)
{
base.WndProc(ref m);
if (m.Msg == (int)User32.Msgs.WM_NCHITTEST)
{
if (m.Result.ToInt32() == User32._HT_TRANSPARENT)
{
m.Result = (IntPtr)User32._HT_CLIENT;
}
}
if (m.Msg == (int)User32.Msgs.WM_LBUTTONDOWN)
{
if (this.TabCount > 1)
{
TabPage selectingTabPage = OverTab();
if (selectingTabPage != null)
{
int index = TabPages.IndexOf(selectingTabPage);
if (index != this.SelectedIndex)
{
if (!selectingTabPage.Enabled)
{
m.Result = new IntPtr(1);
}
else
{
this.SelectedTab = selectingTabPage;
}
}
}
}
}
}
public bool IsOverCloseButton(Point p)
{
Rectangle r = GetTabRect(TabPages.IndexOf(TabPageFromPoint(p)));
int x = p.X - r.X, y = p.Y - r.Y;
return(x > 4 && x < 24 && y > 1 && y < 17);
}
protected override void OnDrawItem(DrawItemEventArgs e)
{
base.OnDrawItem(e);
if (SelectedTab == TabPages[e.Index])
{
e.Graphics.FillRectangle(new SolidBrush(Color.Tomato), e.Bounds);
Rectangle rtCurrent =
GetTabRect(TabPages.IndexOf(SelectedTab));
buttonX.Location = new Point(
rtCurrent.X + rtCurrent.Width - buttonX.Width,
rtCurrent.Y
);
}
else
{
e.Graphics.FillRectangle(new SolidBrush(Color.Tan), e.Bounds);
}
TabPages[e.Index].BorderStyle = BorderStyle.FixedSingle;
TabPages[e.Index].ForeColor = SystemColors.ControlText;
Rectangle paddedBounds = e.Bounds;
paddedBounds.Inflate(-2, -3);
e.Graphics.DrawString(
TabPages[e.Index].Text,
Font,
SystemBrushes.HighlightText,
paddedBounds);
}
/// <summary>
/// Handles the event that occurs when an object is dragged over the control's bounds.
/// </summary>
/// <param name="drgevent"></param>
protected override void OnDragOver(DragEventArgs drgevent)
{
// Check whether there is no tab being dragged
if (drgevent.Data.GetData(typeof(TabPage)) == null)
{
return;
}
// Get drag tab and its index
TabPage dragTab = (TabPage)drgevent.Data.GetData(typeof(TabPage));
int dragTabIndex = TabPages.IndexOf(dragTab);
// Check whether a tab is being dragged
if (dragTabIndex < 0)
{
return;
}
// Check whether the mouse if over a tab
int hoverTabIndex = GetHoverTabIndex();
if (hoverTabIndex < 0)
{
drgevent.Effect = DragDropEffects.None;
return;
}
TabPage hoverTab = TabPages[hoverTabIndex];
drgevent.Effect = DragDropEffects.Move;
// Check whether this is the start of the drag
if (dragTab == hoverTab)
{
return;
}
// Swap tabs
Rectangle dragTabRect = GetTabRect(dragTabIndex);
Rectangle hoverTabRect = GetTabRect(hoverTabIndex);
if (dragTabRect.Width < hoverTabRect.Width)
{
if (dragTabIndex < hoverTabIndex && ((drgevent.X - Location.X) > ((hoverTabRect.X + hoverTabRect.Width) - dragTabRect.Width)))
{
SwapTabPages(dragTab, hoverTab); // Swap tab locations
}
else if (dragTabIndex > hoverTabIndex && ((drgevent.X - Location.X) < (hoverTabRect.X + dragTabRect.Width)))
{
SwapTabPages(dragTab, hoverTab); // Swap tab locations
}
}
else
{
SwapTabPages(dragTab, hoverTab); // Swap tab locations
}
// Select the dragged tab
SelectedIndex = TabPages.IndexOf(dragTab);
}
private void SwapTabPages(TabPage tp1, TabPage tp2)
{
int index1 = TabPages.IndexOf(tp1);
int index2 = TabPages.IndexOf(tp2);
TabPages[index1] = tp2;
TabPages[index2] = tp1;
}
private bool IsCloseButtonClick(MetroTabPage page, Point location)
{
var index = TabPages.IndexOf(page);
var rectangle = GetTabRect(index);
var closeRectagle = GetCloseButtonRectangle(rectangle);
return(IsInCloseButtonArea(closeRectagle, location));
}
private void Swap(TabPage a, TabPage b)
{
int i = TabPages.IndexOf(a);
int j = TabPages.IndexOf(b);
TabPages[i] = b;
TabPages[j] = a;
}
private void buttonAction(cnTabButton sender, TabButtonAction action)
{
if ((action == TabButtonAction.Left) || (action == TabButtonAction.Up))
{
offsetX -= tabWidth;
if (offsetX < 0)
{
offsetX = 0;
}
}
else if ((action == TabButtonAction.Right) || (action == TabButtonAction.Down))
{
int l = tabWidth;
if (tabView == TabControlView.OneNote)
{
l += tabHeight / 2 + 3;
}
offsetX += l;
int full_l = l * TabPages.Count;
Rectangle r = this.GetBoundsHeader(0);
Rectangle rb = this.GetBoundsButtons();
int d;
if ((Alignment == TabAlignment.Top) || (Alignment == TabAlignment.Bottom))
{
d = r.Width - rb.Width;
}
else
{
d = r.Height - rb.Height;
}
if (full_l < d)
{
offsetX = 0;
}
else
if (d + offsetX > full_l)
{
offsetX = full_l - d;
}
}
else if (action == TabButtonAction.Action)
{
ContextMenuStrip menu = new ContextMenuStrip();
foreach (cnTabPage tb in TabPages)
{
ToolStripMenuItem item = new System.Windows.Forms.ToolStripMenuItem();
item.Text = tb.Title;
int n = TabPages.IndexOf(tb);
item.Tag = n;
item.Checked = (n == currentPage);
item.Click += new System.EventHandler(ItemClickMenu);
menu.Items.Add(item);
}
menu.Show(sender, 0, sender.Size.Height);
}
Invalidate();
}
/// <summary>
/// On drag and drop, we updates the tab order.
/// </summary>
/// <param name="drgevent"></param>
protected override void OnDragDrop(DragEventArgs drgevent)
{
TabPage draggedTab = GetDraggedTab(drgevent);
m_lastPoint = new Point(Int32.MaxValue, Int32.MaxValue);
m_markerIndex = -1;
UpdateMarker();
// Retrieve the point in client coordinates
Point pt = new Point(drgevent.X, drgevent.Y);
pt = PointToClient(pt);
// Get the tab we are hovering over.
bool onLeft;
int markerIndex = GetMarkerIndex(draggedTab, pt, out onLeft);
int index = GetInsertionIndex(markerIndex, onLeft);
// Make sure there is a TabPage being dragged.
if (draggedTab == null)
{
drgevent.Effect = DragDropEffects.None;
base.OnDragDrop(drgevent);
return;
}
// Retrieve the dragged page. If same as dragged page, return
int draggedIndex = TabPages.IndexOf(draggedTab);
if (draggedIndex == index || (draggedIndex == index - 1 && onLeft))
{
drgevent.Effect = DragDropEffects.None;
base.OnDragDrop(drgevent);
return;
}
// Move the tabs
drgevent.Effect = DragDropEffects.Move;
this.SuspendDrawing();
SuspendLayout();
try
{
if (TabPages.IndexOf(draggedTab) < index)
{
index--;
}
TabPages.Remove(draggedTab);
TabPages.Insert(index, draggedTab);
SelectedTab = draggedTab;
}
finally
{
ResumeLayout(false);
this.ResumeDrawing();
base.OnDragDrop(drgevent);
}
}
public void HidePage(TabPage tabPage)
{
if (TabPages.Contains(tabPage))
{
int v = TabPages.IndexOf(tabPage);
HiddenPages.Add(tabPage);
lastIndex.Add(v);
TabPages.RemoveAt(v);
}
}
public void SelectTab(TabPage tabPage)
{
var index = TabPages.IndexOf(tabPage);
if (index == -1)
{
return;
}
SelectTab(index);
}
private void HandleTabRightClickClose(object sender, EventArgs e)
{
var control = sender as PluginTab;
var index = TabPages.IndexOf(control);
if (index > -1)
{
CloseTab(index);
}
}
private TabPage TabAt(System.Drawing.Point position)
{
foreach (TabPage tab in this.TabPages)
{
if (this.GetTabRect(TabPages.IndexOf(tab)).Contains(position))
{
return(tab);
}
}
return(null);
}
public void SwapTabPages(TabPage tp1, TabPage tp2)
{
if (!TabPages.Contains(tp1) || !TabPages.Contains(tp2))
{
throw new ArgumentException("TabPages must be in the TabCotrols TabPageCollection.");
}
int Index1 = TabPages.IndexOf(tp1);
int Index2 = TabPages.IndexOf(tp2);
TabPages[Index1] = tp2;
TabPages[Index2] = tp1;
}
/// <summary>
/// Swaps the location of two provided TabPages.
/// </summary>
/// <param name="srcTab">TabPage 1</param>
/// <param name="dstTab">TabPage 2</param>
private void SwapTabPages(TabPage srcTab, TabPage dstTab)
{
// Swap tab indexes
int srcIndex = TabPages.IndexOf(srcTab);
int dstIndex = TabPages.IndexOf(dstTab);
TabPages[dstIndex] = srcTab;
TabPages[srcIndex] = dstTab;
TabSwapped?.Invoke(this, new TabSwapEventArgs(srcIndex, dstIndex));
Refresh();
}
/// <summary>Swaps the tab pages.</summary>
/// <param name="tabPage1">The tab page.</param>
/// <param name="tabPage2">The other tab page.</param>
public void SwapTabPages(TabPage tabPage1, TabPage tabPage2)
{
if (!TabPages.Contains(tabPage1) || !TabPages.Contains(tabPage2))
{
throw new ArgumentException(@"TabPages must be in the TabControls TabPageCollection.");
}
int _index1 = TabPages.IndexOf(tabPage1);
int _index2 = TabPages.IndexOf(tabPage2);
TabPages[_index1] = tabPage2;
TabPages[_index2] = tabPage1;
}
/// <summary>
/// Handles the event that occurs when the mouse pointer is moved over the control.
/// </summary>
/// <param name="e"></param>
protected override void OnMouseMove(MouseEventArgs e)
{
if ((e.Button != MouseButtons.Left) || (Tag == null))
{
return;
}
// Get clicked tab
TabPage clickedTab = (TabPage)Tag;
int clickedIndex = TabPages.IndexOf(clickedTab);
// Start drag and drop
DoDragDrop(clickedTab, DragDropEffects.All);
}
/// <summary>
/// 鼠标进入选项卡
/// </summary>
/// <param name="e"></param>
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
_mouse_over = -1;
foreach (TabPage tab in TabPages)
{
Rectangle tab_tect = GetTabRect(TabPages.IndexOf(tab));
if (tab_tect.Contains(e.Location))
{
_mouse_over = TabPages.IndexOf(tab);
break;
}
}
}
public void CloseTab(TabPage tp)
{
ClosingEventArgs args = new ClosingEventArgs(TabPages.IndexOf(tp));
OnTabClosing(args);
//Remove the tab and fir the event tot he client
if (!args.Cancel)
{
// close and remove the tab, dispose it too
TabPages.Remove(tp);
OnTabClosed(new ClosedEventArgs(tp));
tp.Dispose();
}
}
// http://stackoverflow.com/questions/1849801/c-sharp-winform-how-to-set-the-base-color-of-a-tabcontrol-not-the-tabpage
protected override void OnDrawItem(DrawItemEventArgs e)
{
// fill in the whole rect
using (SolidBrush br = new SolidBrush(Color.Black))
{
e.Graphics.FillRectangle(br, ClientRectangle);
}
// draw the tabs
for (int i = 0; i < TabPages.Count; ++i)
{
TabPage tab = TabPages[i];
// Get the text area of the current tab
RectangleF tabTextArea = (RectangleF)GetTabRect(i);
tabTextArea.Width *= e.Graphics.DpiX / 96f;
tabTextArea.Height *= e.Graphics.DpiY / 96f;
// draw the background
var tabColor = SelectedTab == tab ? SelectedTabBackColor : TabBackColor;
using (SolidBrush br = new SolidBrush(tabColor))
{
e.Graphics.FillRectangle(br, tabTextArea);
}
// draw the border
using (Pen p = new Pen(TabBorderColor))
{
e.Graphics.DrawRectangle(p, tabTextArea.X, tabTextArea.Y, tabTextArea.Width, tabTextArea.Height);
}
// draw the tab header text
var textColor = SelectedTab == tab ? SelectedTabForeColor : TabForeColor;
using (SolidBrush brush = new SolidBrush(textColor))
{
var sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
sf.LineAlignment = StringAlignment.Center;
e.Graphics.DrawString(tab.Text, Font, brush, tabTextArea, sf);
}
}
// draw the tab underline (same color as border)
var bottom = TabPages.Cast <TabPage>().MaxOrDefault(t => GetTabRect(TabPages.IndexOf(t)).Bottom);
using (Pen p = new Pen(TabBorderColor, 5))
{
e.Graphics.DrawLine(p, ClientRectangle.Left, bottom, ClientRectangle.Right, bottom);
}
}
