/// <summary>
/// Initializes some important variables
/// </summary>
private void InitState()
{
// calculate number of lines required (being careful to count 1 for the last partial line)
_linesCount = (_dataBuf.Length + _columnCount - 1) / _columnCount;
_startLine = 0;
if (_linesCount > _rowCount)
{
_displayLinesCount = _rowCount;
_scrollBar.Hide();
_scrollBar.Maximum = _linesCount - 1;
_scrollBar.LargeChange = _rowCount;
_scrollBar.Show();
_scrollBar.Enabled = true;
}
else
{
_displayLinesCount = _linesCount;
_scrollBar.Hide();
_scrollBar.Maximum = _rowCount;
_scrollBar.LargeChange = _rowCount;
_scrollBar.Show();
_scrollBar.Enabled = false;
}
_scrollBar.Select();
Invalidate();
}
/// <include file='doc\ByteViewer.uex' path='docs/doc[@for="ByteViewer.InitState"]/*' />
/// <devdoc>
/// Initializes some important variables
/// </devdoc>
/// <internalonly/>
private void InitState()
{
// calculate number of lines required (being careful to count 1 for the last partial line)
linesCount = (dataBuf.Length + columnCount - 1) / columnCount;
startLine = 0;
if (linesCount > rowCount)
{
displayLinesCount = rowCount;
scrollBar.Hide();
scrollBar.Maximum = linesCount - 1;
scrollBar.LargeChange = rowCount;
scrollBar.Show();
scrollBar.Enabled = true;
}
else
{
displayLinesCount = linesCount;
scrollBar.Hide();
scrollBar.Maximum = rowCount;
scrollBar.LargeChange = rowCount;
scrollBar.Show();
scrollBar.Enabled = false;
}
scrollBar.Select();
Invalidate();
}
private void ScrollBarsLayout()
{
_HScrollBar.Hide();
_VScrollBar.Hide();
int scrollHeight = this.Height - 2 * _FocusBorderWidth - _HScrollBar.Height;
int scrollWidth = this.Width - 2 * _FocusBorderWidth - _VScrollBar.Width;
_HScrollBar.Width = scrollWidth;
_VScrollBar.Height = scrollHeight;
_HScrollBar.Location = new Point(_FocusBorderWidth, scrollHeight + _FocusBorderWidth);
_VScrollBar.Location = new Point(scrollWidth + _FocusBorderWidth, _FocusBorderWidth);
_HScrollBar.Show();
_VScrollBar.Show();
}
public void SyncItems(bool paint)
{
allItemHeight = 0;
for (int i = 0; i < items.Count; i++)
{
items[i].ItemY = allItemHeight;
allItemHeight += items[i].ItemHeight;
}
if (allItemHeight > Height)
{
outHeight = allItemHeight - Height;
if (yOffest > outHeight && outHeight >= 0)
{
yOffest = outHeight + 16;
}
scrol.Maximum = allItemHeight;
scrol.LargeChange = Height < 0 ? 0 : Height;
scrol.SmallChange = allItemHeight / 50;
scrol.Left = Width - 16;
scrol.Value = yOffest + 16;
scrol.Height = Height;
if (!scrol.Visible)
{
scrol.Show();
}
}
else
{
outHeight = 0;
yOffest = 0;
if (scrol.Visible)
{
scrol.Hide();
}
}
if (paint)
{
Invalidate();
}
}
private void Adjust_ScrollBar()
{
int viewHeight = ((Window)ParentRef).ShowScrollHeight;
VScrollBar scroll = ((Window)ParentRef).ScrollBar;
if (VirtualHeight > viewHeight)
{
scroll.LargeChange = viewHeight / 4;
scroll.Maximum = (VirtualHeight - viewHeight) / Window.SCROLL_FACTOR;
scroll.Maximum += scroll.LargeChange;
if (!scroll.Visible)
{
scrollToggled = true;
scroll.Show();
}
}
else if (scroll.Visible)
{
scrollToggled = true;
scroll.Hide();
}
}
private void UpdateScrollBars()
{
// Note: the view pointer has already been validated by the caller (OnSize method)
int viewWidth = m_pView.BufferAreaWidth;
int viewHeight = m_pView.BufferAreaHeight;
int pageWidth = m_pView.BufferAreaWidth;
int pageHeight = m_pView.BufferAreaHeight;
switch (m_pView.ScalingMode)
{
case SapView.DisplayScalingMode.None:
{
if (m_pView.Buffer != null)
{
viewWidth = m_pView.Buffer.Width;
viewHeight = m_pView.Buffer.Height;
}
break; // pageWidth and pageHeight are already initialized correctly
}
case SapView.DisplayScalingMode.FitToWindow:
{
// viewWidth and viewHeight are already initialized correctly
// pageWidth and pageHeight are already initialized correctly
break;
}
case SapView.DisplayScalingMode.Zoom:
case SapView.DisplayScalingMode.UserDefined:
{
if (m_pView.Buffer != null)
{
viewWidth = (int)(m_pView.Buffer.Width);
viewHeight = (int)(m_pView.Buffer.Height);
}
pageWidth = (int)(m_pView.ScalingSrcArea.Width);
pageHeight = (int)(m_pView.ScalingSrcArea.Height);
break;
}
}
if (hScroll != null && vScroll != null)
{
// Size Horitontal scrollbar
hScroll.Minimum = 0;
hScroll.Maximum = (int)((float)(viewWidth + 0.5) - 1);
hScroll.LargeChange = pageWidth;
hScroll.Value = m_pView.HorzScrollPosition;
// Size Vertical scrollbar
vScroll.Minimum = 0;
vScroll.Maximum = (int)(((float)viewHeight + 0.5) - 1);
vScroll.LargeChange = pageHeight;
vScroll.Value = m_pView.VertScrollPosition;
// Show/hide scroll bars
if (m_pView.HorzScrollRange > 0)
{
hScroll.Show();
}
else
{
hScroll.Hide();
}
if (m_pView.VertScrollRange > 0)
{
vScroll.Show();
}
else
{
vScroll.Hide();
}
}
}