public bool Equals(TabViewerHitTestInfo obj)
{
if(obj == null)
return false;
bool res = true;
res &= IsButton == obj.IsButton;
res &= TabIndex == obj.TabIndex;
res &= IsSelected == obj.IsSelected;
res &= TabRect == obj.TabRect;
res &= BtnRect == obj.BtnRect;
return res;
}
//-------------------------------------------------------------------------------------
private TabViewerHitTestInfo HitTest(MouseEventArgs e)
{
for(int a = 0; a < TabPages.Count; a++)
{
TabViewerHitTestInfo t = new TabViewerHitTestInfo();
Rectangle r = this.GetTabRect(a);
if(r.Contains(e.Location) == false)
continue;
t.TabIndex = a;
t.TabRect = r;
t.IsSelected = SelectedIndex == a;
t.BtnRect = new Rectangle(r.X + r.Width - 20, r.Y+3, 14, 14);
t.IsButton = t.BtnRect.Contains(e.Location);
return t;
}
return null;
}
//-------------------------------------------------------------------------------------
protected override void WndProc(ref Message m)
{
if(m.Msg == WM.LBUTTONDOWN)
{
MouseEventArgs e = new MouseEventArgs(MouseButtons.Left, 1,
(short)(m.LParam), (short)((int)m.LParam >> 16), 0);
TabViewerHitTestInfo t = HitTest(e);
if(t != null && t.IsButton)
{
using(Graphics g = this.CreateGraphics())
g.DrawImage(global::Sim.Shell.Properties.Resources.Xbutton_Pushed, t.BtnRect);
return;
}
else if(prev != null)
using(Graphics g = this.CreateGraphics())
{
LinearGradientBrush b;
if(prev.IsSelected)
{
Rectangle gr = prev.TabRect;
gr.Y--;
gr.Height += 2;
using(b = new LinearGradientBrush(gr, SystemColors.ControlLightLight,
SystemColors.Control, LinearGradientMode.Vertical))
g.FillRectangle(b, new Rectangle(prev.BtnRect.X, 1, prev.BtnRect.Width, prev.TabRect.Height));
}
else
using(b = new LinearGradientBrush(this.ClientRectangle, SystemColors.GradientInactiveCaption,
SystemColors.ControlLightLight, LinearGradientMode.Horizontal))
g.FillRectangle(b, prev.BtnRect);
if(prev.IsSelected)
g.DrawImage(global::Sim.Shell.Properties.Resources.Xbutton, prev.BtnRect);
prev = null;
}
}
base.WndProc(ref m);
}
//-------------------------------------------------------------------------------------
protected override void OnMouseUp(MouseEventArgs e)
{
if(e.Button == System.Windows.Forms.MouseButtons.Left)
{
TabViewerHitTestInfo t = HitTest(e);
if(t != null && t.IsButton)
{
CancelEventArgs<TabPage> arg = new CancelEventArgs<TabPage>(TabPages[t.TabIndex]);
if(NeedPageClose != null)
NeedPageClose(this, arg);
if(arg.Cancel)
return;
prev = null;
TabPages.RemoveAt(t.TabIndex);
}
}
base.OnMouseUp(e);
}
//-------------------------------------------------------------------------------------
protected override void OnMouseLeave(EventArgs e)
{
Graphics g = this.CreateGraphics();
try
{
if(prev != null)
{
//System.Diagnostics.Debug.Write("l");
LinearGradientBrush b;
if(prev.IsSelected)
{
Rectangle gr = prev.TabRect;
gr.Y--;
gr.Height += 2;
using(b = new LinearGradientBrush(gr, SystemColors.ControlLightLight,
SystemColors.Control, LinearGradientMode.Vertical))
g.FillRectangle(b, new Rectangle(prev.BtnRect.X, 1, prev.BtnRect.Width, prev.TabRect.Height));
}
else
using(b = new LinearGradientBrush(this.ClientRectangle, SystemColors.GradientInactiveCaption,
SystemColors.ControlLightLight, LinearGradientMode.Horizontal))
g.FillRectangle(b, prev.BtnRect);
if(prev.IsSelected)
g.DrawImage(global::Sim.Shell.Properties.Resources.Xbutton, prev.BtnRect);
prev = null;
}
}
catch(Exception Err)
{
Sim.Controls.ErrorBox.Show(Err);
}
finally
{
g.Dispose();
base.OnMouseLeave(e);
}
}
//-------------------------------------------------------------------------------------
protected override void OnMouseMove(MouseEventArgs e)
{
Graphics g = this.CreateGraphics();
try
{
TabViewerHitTestInfo t = HitTest(e);
if((t == null && prev == null) || (t != null && t.Equals(prev)))
return;
if(prev != null)
{
//System.Diagnostics.Debug.Write("c");
LinearGradientBrush b;
if(prev.IsSelected)
{
Rectangle gr = prev.TabRect;
gr.Y --;
gr.Height += 2;
using(b = new LinearGradientBrush(gr, SystemColors.ControlLightLight,
SystemColors.Control, LinearGradientMode.Vertical))
g.FillRectangle(b, new Rectangle(prev.BtnRect.X, 1, prev.BtnRect.Width, prev.TabRect.Height));
}
else
{
using (b = new LinearGradientBrush(this.ClientRectangle, SystemColors.GradientInactiveCaption,
SystemColors.ControlLightLight, LinearGradientMode.Horizontal))
g.FillRectangle(b, prev.BtnRect);
}
if(prev.IsSelected)
g.DrawImage(global::Sim.Shell.Properties.Resources.Xbutton, prev.BtnRect);
prev = null;
}
if(t != null)
{
if(t.IsButton)
{
if(e.Button == MouseButtons.Left)
g.DrawImage(global::Sim.Shell.Properties.Resources.Xbutton_Pushed, t.BtnRect);
else
g.DrawImage(global::Sim.Shell.Properties.Resources.Xbutton_Raised, t.BtnRect);
}
else
g.DrawImage(global::Sim.Shell.Properties.Resources.Xbutton, t.BtnRect);
prev = t;
//System.Diagnostics.Debug.Write("d");
}
}
catch(Exception Err)
{
Sim.Controls.ErrorBox.Show(Err);
}
finally
{
g.Dispose();
base.OnMouseMove(e);
}
}