private void InitScrollButtons()
{
_leftScrollButton = new TabBarScrollButton();
_leftScrollButton._isRight = false;
_leftScrollButton.Enabled = false;
_leftScrollButton.Width = SCROLLBUTTON_SIZE;
_leftScrollButton.Height = SCROLLBUTTON_SIZE;
_leftScrollButton.BringToFront();
_leftScrollButton.Click += new EventHandler(OnLeftScrollButtonClicked);
this.Controls.Add(_leftScrollButton);
_rightScrollButton = new TabBarScrollButton();
_rightScrollButton._isRight = true;
_rightScrollButton.Enabled = false;
_rightScrollButton.Width = SCROLLBUTTON_SIZE;
_rightScrollButton.Height = SCROLLBUTTON_SIZE;
_rightScrollButton.BringToFront();
_rightScrollButton.Click += new EventHandler(OnRightScrollButtonClicked);
this.Controls.Add(_rightScrollButton);
}
private void ArrangeButtonsForScrollStyle(bool animation, int animation_offset)
{
if (_leftScrollButton == null)
{
InitScrollButtons();
}
for (int i = 0; i < _scrollButtonOffset; i++)
{
GEnv.Connections.TagAt(i).Button.Visible = false;
}
int x = 2;
int y = 3;
int limit = x + GetTabAreaWidth();
x += animation_offset;
int offset = _scrollButtonOffset;
int index = offset;
while (offset < GEnv.Connections.Count)
{
ConnectionTag ct = GEnv.Connections.TagAt(offset);
if (!ct.IsTerminated)
{
TabBarButton button = (TabBarButton)ct.Button;
button.Left = x;
button.Width = GetNecessaryButtonWidth(ct);
SetButtonText(button, index, ct);
if (x > limit && offset > _scrollButtonOffset)
{
break; //少なくとも一つはボタンを表示する
}
button.Top = y;
button.Visible = true;
button.Height = UNITHEIGHT - 4;
x += button.Width + BUTTON_MARGIN;
index++;
}
offset++;
}
for (int i = offset; i < GEnv.Connections.Count; i++)
{
GEnv.Connections.TagAt(i).Button.Visible = false;
}
_leftScrollButton.Left = this.Width - SCROLLBUTTON_SIZE * 2;
_leftScrollButton.Top = y + 2;
_leftScrollButton.BringToFront();
_leftScrollButton.Enabled = !animation && _scrollButtonOffset > 0;
_rightScrollButton.Left = this.Width - SCROLLBUTTON_SIZE;
_rightScrollButton.Top = y + 2;
_rightScrollButton.BringToFront();
_rightScrollButton.Enabled = !animation && offset < GEnv.Connections.Count;
//幅をふやしていったときなど、スペースに余裕があるなら表示を拡大
if (!animation && _scrollButtonOffset > 0 && GEnv.Connections.TagAt(_scrollButtonOffset - 1).Button.Width + BUTTON_MARGIN < limit - x)
{
_scrollButtonOffset--;
ArrangeButtonsForScrollStyle(false, 0);
}
this.Height = y + UNITHEIGHT;
}
private void InitScrollButtons()
{
_leftScrollButton = new TabBarScrollButton();
_leftScrollButton._isRight = false;
_leftScrollButton.Enabled = false;
_leftScrollButton.Width = SCROLLBUTTON_SIZE;
_leftScrollButton.Height = SCROLLBUTTON_SIZE;
_leftScrollButton.BringToFront();
_leftScrollButton.Click += new EventHandler(OnLeftScrollButtonClicked);
this.Controls.Add(_leftScrollButton);
_rightScrollButton = new TabBarScrollButton();
_rightScrollButton._isRight = true;
_rightScrollButton.Enabled = false;
_rightScrollButton.Width = SCROLLBUTTON_SIZE;
_rightScrollButton.Height = SCROLLBUTTON_SIZE;
_rightScrollButton.BringToFront();
_rightScrollButton.Click += new EventHandler(OnRightScrollButtonClicked);
this.Controls.Add(_rightScrollButton);
}