protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
e.Graphics.SmoothingMode = SmoothingMode.AntiAlias;
e.Graphics.CompositingQuality = CompositingQuality.HighQuality;
e.Graphics.DrawLine(new Pen(this.TabBottomLineColor), new Point(0, this.Height - 1), new Point(this.Width, this.Height - 1));
// 判断重绘区域大小，解决由最小化还原后，无法绘制Tab的问题
if (currPaintTh == null || e.ClipRectangle.Size.Width > TabHeader.Left_Offset)
{
// 被选中的Tab 需要处于顶层，因此最后绘制
TabHeader thSelected = null;
foreach (TabHeader th in lstTabHeader)
{
if (th.Selected)
{
thSelected = th;
}
else
{
th.DrawAll(e.Graphics, th.Rect);
}
}
// 最后绘制
if (thSelected != null)
{
thSelected.DrawAll(e.Graphics, thSelected.Rect);
}
}
else
{
// 绘制完整的TabHeader，如果仅绘制指定区域，可能会出现白色背景
currPaintTh.DrawAll(e.Graphics, currPaintTh.Rect);
currPaintTh = null;
}
}
protected override void OnMouseMove(MouseEventArgs e)
{
base.OnMouseMove(e);
if (e.Button == System.Windows.Forms.MouseButtons.Left && thMouseDown != null)
{
//Win32API.OutputDebugStringA(string.Format("e.Button == System.Windows.Forms.MouseButtons.Left && thMouseDown != null"));
if (!slided)
{
if (Math.Abs(e.X - pMouseDown.X) > 15)
{
slided = true;
}
}
else
{
btnAddNew.Visible = false;
Point newPos = thMouseDown.Rect.Location;
newPos.X += e.Location.X - pMouseDown.X;
// 是否在父窗体范围内移动
if (newPos.X < 0)
{
newPos.X = 0;
}
//防止将标签拖动到窗口右上角控制按钮区域
if (newPos.X > (this.Width - this.ControlBoxWidth - thMouseDown.Rect.Width))
{
newPos.X = this.Width - this.ControlBoxWidth - thMouseDown.Rect.Width;
}
// 判断移动方向，向左或向右
if (e.Location.X - pMouseDown.X > 0)
{
// 判断是否已经是最后一个Tab
if (thMouseDown.TabIndex != lstTabHeader.Count - 1)
{
TabHeader thRight = lstTabHeader[thMouseDown.TabIndex + 1];
// 向右移动时，判断是否与后一Tab 交换位置：当前Tab的 Right ,超过后一Tab 位置的一半
if (newPos.X + tabWidth > thRight.Rect.X + tabWidth / 2)
{
thRight.TabIndex--;
thMouseDown.TabIndex++;
lstTabHeader.Sort();
}
}
}
else
{
// 判断是否已经是第0个Tab
if (thMouseDown.TabIndex != 0)
{
TabHeader thLeft = lstTabHeader[thMouseDown.TabIndex - 1];
// 向右移动时，判断是否与后一Tab 交换位置：当前Tab的 Right ,超过后一Tab 位置的一半
if (newPos.X < thLeft.Rect.X + tabWidth / 2)
{
thLeft.TabIndex++;
thMouseDown.TabIndex--;
lstTabHeader.Sort();
}
}
}
thMouseDown.Rect.X = newPos.X;
pMouseDown = e.Location;
this.Invalidate();
}
}
if (e.Button == System.Windows.Forms.MouseButtons.Left && bolMouseDownNothing)
{
//Win32API.OutputDebugStringA(string.Format("e.Button == System.Windows.Forms.MouseButtons.Left && bolMouseDownNothing"));
//这里会导致窗口位置移动，BUG
//Win32API.OutputDebugStringA(string.Format("没有选中标签，当前坐标为：X:{0},Y:{1}", pMouseDown.X, pMouseDown.Y));
if (this.Parent != null)
{
//Win32API.OutputDebugStringA(string.Format("当前控件的父控件为:{0},Handle为:{1}", this.Parent, this.Parent.Handle));
Form tmpForm = this.Parent as Form;
if (tmpForm != null)
{
tmpForm.Location = new Point(tmpForm.Location.X + e.X - pMouseDown.X, tmpForm.Location.Y + e.Y - pMouseDown.Y);;
}
}
}
else
{
//判断当前标签是否是鼠标悬停
pMouseMove = e.Location;
//thMouseMove = null;
//Win32API.OutputDebugStringA( string.Format("当前鼠标坐标为X:{0}, y{1}", pMouseMove.X,pMouseMove.Y) );
try
{
foreach (TabHeader th in lstTabHeader)
{
//如果当前标签有鼠标悬停
if (th.HitTest(pMouseMove))
{
//如果当前标签是已经选择的标签，跳过
if (!th.Selected)
{
th.Hovered = true;
//thMouseMove = th;
}
else
{
th.Hovered = false;
}
//将当前标签的标题作为ToolTip显示
if (th.TitleHitTest(pMouseMove))
{
//判断当前标签的有鼠标悬停
if (toolTip1 != null)
{
if (!toolTip1.GetToolTip(this).Equals(th.Title))
{
toolTip1.SetToolTip(this, th.Title);
}
}
}
else
{
if (toolTip1 != null)
{
toolTip1.Hide(this);
}
}
}
else
{
th.Hovered = false;
}
//Win32API.OutputDebugStringA(string.Format("标签是否选择：{0} , 是否鼠标悬停：{1}！", th.Selected, th.Hovered));
}
}
catch (Exception ex)
{
}
this.Invalidate();
}
}
/// <summary>
/// 销毁一个标签释放标签中的对象
/// </summary>
/// <param name="tab"></param>
private void DeleteOneTab(TabHeader tab)
{
try
{
int intTabIndex = -1;
intTabIndex = tab.TabIndex;
//如果当前关闭的标签的客户端主窗口句柄不等于IntPtr.Zero，则关闭
if (tab.ClientHandle != IntPtr.Zero)
{
//发送消息，让子进程退出
//Win32API.CloseWindow(tab.ClientHandle);
int ret = Win32API.PostMessageA(tab.ClientHandle, Win32API.WM_CLOSE, 0, 0);
//int ret = Win32API.DestroyWindow(tab.ClientHandle);
//Win32API.OutputDebugStringA( string.Format("发送API命令Win32API.PostMessageA给{0}，返回值：{1}，LastErrorCode:{2}", tab.ClientHandle, ret, Win32API.GetLastError() ));
}
//
//从标签列表中移除当前选择的标签（标签上的关闭按钮被点击）
lstTabHeader.Remove(tab);
tab.Dispose();
//重新计算剩余标签的宽度
widthCalculate(false);
//重置所有标签为未选中状态,并重新设置标签编号
for (int i = 0; i < lstTabHeader.Count; i++)
{
lstTabHeader[i].TabIndex = i;
lstTabHeader[i].Selected = false;
}
//如果关闭了标签,则激活该标签右侧的标签，如果为0或<0,不激活
try
{
//OutputDebugStringA(string.Format("当前删除的标签索引{0}", intTabIndex));
//至少有3个标签0，1，2，删除1号，2号成了1号
if (lstTabHeader.Count > 1)
{
//如果当前删除的标签号是最后一个标签，则激活左侧的标签
if (lstTabHeader.Count == intTabIndex)
{
intTabIndex = intTabIndex - 1;
}
lstTabHeader[intTabIndex].Selected = true;
thMouseDownPublic = lstTabHeader[intTabIndex];
if (thMouseDownPublic.ClientHandle != IntPtr.Zero)
{
//显示到最前面
Win32API.MoveWindow(thMouseDownPublic.ClientHandle, 0, 0, pnlWebBrowser.Width, pnlWebBrowser.Height, 1);
Win32API.ShowWindow(thMouseDownPublic.ClientHandle, 1);
}
}
//至少有2个标签0，1,删除1号，直接激活0号
else if (lstTabHeader.Count == 1)
{
//OutputDebugStringA(string.Format("当前删除的标签索引条件：intTabIndex == 0"));
lstTabHeader[0].Selected = true;
thMouseDownPublic = lstTabHeader[0];
if (thMouseDownPublic.ClientHandle != IntPtr.Zero)
{
//显示到最前面
Win32API.MoveWindow(thMouseDownPublic.ClientHandle, 0, 0, pnlWebBrowser.Width, pnlWebBrowser.Height, 1);
Win32API.ShowWindow(thMouseDownPublic.ClientHandle, 1);
}
}
}
catch (Exception ex)
{
//OutputDebugStringA(string.Format("切换标签时发生了错误：{0}", ex.Message ));
}
lstTabHeader.Sort();
this.Invalidate();
}
catch (Exception ex)
{
//
}
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
thMouseDown = null;
//Win32API.OutputDebugStringA(string.Format("OnMouseDown 按键为:{0} ,{1}次点击！", e.Button, e.Clicks ));
if (e.Button == System.Windows.Forms.MouseButtons.Left && e.Clicks == 1)
{
pMouseDown = e.Location;
bolDbClickedFlag = false;
PublicModule.IsHeadDbClicked = false;
foreach (TabHeader th in lstTabHeader)
{
if (th.HitTest(pMouseDown))
{
thMouseDown = th;
thMouseDown.Selected = true;
thMouseDownPublic = th;
break;
}
}
//切换当前标签页的浏览器控件到前台显示
try
{
if (thMouseDown != null)
{
//利用子进程的Handle,让其显示
if (thMouseDown.ClientHandle != IntPtr.Zero)
{
//发送消息，让它显示到前台
Win32API.MoveWindow(thMouseDown.ClientHandle, 0, 0, pnlWebBrowser.Width, pnlWebBrowser.Height, 1);
Win32API.ShowWindow(thMouseDown.ClientHandle, 1);
}
//重新设置消息
try
{
//FormMain tmpForm = pnlWebBrowser.Parent as FormMain;
if (tempFormMain != null && thPreviousMouseDown != thMouseDown)
{
string strcommand = string.Format("/cmd:getstatus,{0}", thMouseDown.ClientName);
tempFormMain.SendToClient(strcommand, thMouseDown.ClientName);
Win32API.OutputDebugStringA(string.Format("发消息 /cmd:getstatus 给{0}", thMouseDown.ClientName));
}
}
catch (Exception ex)
{
string errmessage = string.Format("发送命令/cmd:getstatus到客户端{0}，发生错误{1}", thMouseDown.ClientName, ex.Message);
Win32API.OutputDebugStringA(errmessage);
}
}
}
catch (Exception ex)
{
//do something
}
if (thMouseDown != null)
{
//选中了标签
bolMouseDownNothing = false;
foreach (TabHeader th in lstTabHeader)
{
if (th != thMouseDown)
{
th.Selected = false;
if (th.ClientHandle != IntPtr.Zero)
{
Win32API.ShowWindow(th.ClientHandle, 0);
}
}
}
this.Invalidate();
}
else
{
//移动窗口
bolMouseDownNothing = true;
}
//记录当前标签有无变更，如果没变更，不做下一步操作
thPreviousMouseDown = thMouseDown;
}
else if (e.Button == System.Windows.Forms.MouseButtons.Left && e.Clicks == 2)
{
//双击
bolDbClickedFlag = true;
//双击标签，并不是按下非标签区域，置为False，壁纸还原时位置在鼠标点击位置
bolMouseDownNothing = false;
PublicModule.IsHeadDbClicked = true;
//判断当前点击位置是否有标签
pMouseDown = e.Location;
//遍历所有标签，进行点击测试
foreach (TabHeader th in lstTabHeader)
{
if (th.HitTest(pMouseDown))
{
thMouseDown = th;
thMouseDown.Selected = th.Selected;
break;
}
}
//
if (thMouseDown != null)
{
if (DbClickCloseTab)
{
//如果当前选择了标签，并且标签数量大于1个（编号从0开始）
//OutputDebugStringA(string.Format("当前标签总数：{0}", lstTabHeader.Count));
if (thMouseDown != null && lstTabHeader.Count > 1)
{
//
DeleteOneTab(thMouseDown);
}
}
return;
}
//Win32API.OutputDebugStringA(string.Format("没有选中标签，当前坐标为：X:{0},Y:{1}", pMouseDown.X, pMouseDown.Y));
//Win32API.OutputDebugStringA("双击标签栏的空白区域！");
if (tempFormMain != null)
{
if (tempFormMain.WindowState == FormWindowState.Normal)
{
//Win32API.OutputDebugStringA( string.Format("主窗口的left:{0},top:{1}", oldLocation.X, oldLocation.Y) );
tempFormMain.WindowState = FormWindowState.Maximized;
tempFormMain.HideBorder = true;
cbtnMaximized.StateImage = Resources.res_mask4;
}
else if (tempFormMain.WindowState == FormWindowState.Maximized)
{
tempFormMain.WindowState = FormWindowState.Normal;
tempFormMain.HideBorder = false;
cbtnMaximized.StateImage = Resources.max_mask4;
//Win32API.OutputDebugStringA(string.Format("主窗口的left:{0},top:{1}", tmpForm.Location.X, tmpForm.Location.Y ));
}
else
{
tempFormMain.WindowState = FormWindowState.Normal;
tempFormMain.HideBorder = false;
}
}
if (this.Parent != null)
{
//Win32API.OutputDebugStringA(string.Format("当前控件的父控件为:{0},Handle为:{1}", this.Parent, this.Parent.Handle));
//Form tmpForm = this.Parent as Form;
//if (tmpForm != null)
//{
// if (tmpForm.WindowState == FormWindowState.Normal)
// {
// //Win32API.OutputDebugStringA( string.Format("主窗口的left:{0},top:{1}", oldLocation.X, oldLocation.Y) );
// tmpForm.WindowState = FormWindowState.Maximized;
// cbtnMaximized.StateImage = Resources.res_mask4;
// }
// else if (tmpForm.WindowState == FormWindowState.Maximized)
// {
// tmpForm.WindowState = FormWindowState.Normal;
// cbtnMaximized.StateImage = Resources.max_mask4;
// //Win32API.OutputDebugStringA(string.Format("主窗口的left:{0},top:{1}", tmpForm.Location.X, tmpForm.Location.Y ));
// }
// else
// {
// tmpForm.WindowState = FormWindowState.Normal;
// }
//}
}
}
}
public int CompareTo(object o)
{
TabHeader th = o as TabHeader;
return(this.tabIndex.CompareTo(th.TabIndex));
}
