void CTreePropSheetSplitter::SetPaneHeight(int nIndex,int nHeight)
{
ASSERT(nIndex >= 0 && nIndex < m_nPanes);
if (m_nOrientation == SSP_VERT)
{
m_orig[nIndex + 1] = nHeight + m_nBarThickness ;
CRect rcClient;
int mouse_pos = nHeight;
for (m_nTrackIndex = 1; (m_nTrackIndex < m_nPanes && m_orig[m_nTrackIndex] < mouse_pos); m_nTrackIndex++);
m_nTracker = m_orig[m_nTrackIndex];
m_nTrackerMouseOffset = mouse_pos - m_nTracker;
GetWindowRect(&rcClient);
GetParent()->ScreenToClient(&rcClient);
m_nTrackerLength = rcClient.Width();
CRect rcOuter;
int size_sum;
GetAdjustedClientRect(&rcOuter);
size_sum = m_nOrientation == SSP_HORZ ? rcOuter.Width() : rcOuter.Height();
size_sum -= (m_nPanes - 1) * m_nBarThickness;
m_orig[m_nTrackIndex] = m_nTracker;
m_size[m_nTrackIndex - 1] = MulDivRound(m_orig[m_nTrackIndex] - m_orig[m_nTrackIndex - 1] - m_nBarThickness, FULL_SIZE, size_sum);
m_size[m_nTrackIndex] = MulDivRound(m_orig[m_nTrackIndex + 1] - m_orig[m_nTrackIndex] - m_nBarThickness, FULL_SIZE, size_sum);
ResizePanes();
}
}
void CTreePropSheetSplitter::OnLButtonUp(UINT nFlags, CPoint point)
{
UNREFERENCED_PARAMETER(nFlags);
UNREFERENCED_PARAMETER(point);
if (GetCapture() != this)
return;
CRect rcOuter;
int size_sum;
GetAdjustedClientRect(&rcOuter);
size_sum = m_nOrientation == SSP_HORZ ? rcOuter.Width() : rcOuter.Height();
size_sum -= (m_nPanes - 1) * m_nBarThickness;
InvertTracker();
ReleaseCapture();
m_orig[m_nTrackIndex] = m_nTracker;
m_size[m_nTrackIndex - 1] = MulDivRound(m_orig[m_nTrackIndex] - m_orig[m_nTrackIndex - 1] - m_nBarThickness, FULL_SIZE, size_sum);
m_size[m_nTrackIndex] = MulDivRound(m_orig[m_nTrackIndex + 1] - m_orig[m_nTrackIndex] - m_nBarThickness, FULL_SIZE, size_sum);
ResizePanes();
}
void CTreePropSheetSplitter::SetPaneSizes(const int* sizes)
{
int i, total = 0, total_in = 0;
for (i = 0; i < m_nPanes; i++)
{
ASSERT(sizes[i] >= 0);
total += sizes[i];
}
for (i = 0; i < m_nPanes - 1; i++)
{
m_size[i] = MulDivRound(sizes[i], FULL_SIZE, total);
total_in += m_size[i];
}
m_size[m_nPanes - 1] = FULL_SIZE - total_in;
RecalcLayout();
ResizePanes();
}
void CTreePropSheetSplitter::RecalcLayout()
{
int i, size_sum, remain, remain_new = 0;
bool bGrow = true;
CRect rcOuter;
GetAdjustedClientRect(&rcOuter);
size_sum = m_nOrientation == SSP_HORZ ? rcOuter.Width() : rcOuter.Height();
size_sum -= (m_nPanes - 1) * m_nBarThickness;
// Frozen panes
/* Get the previous size and adjust the size of the frozen pane. We need to
do this as the size array contains ratio to FULL_SIZE. */
// If we have some frozen columns use this algorithm otherwise adjust for minimum sizes.
// If all the panes are frozen, do not use frozen pane algorithm.
bool bFrozenOnly = m_nFrozenPaneCount && m_nPanes - m_nFrozenPaneCount;
if( bFrozenOnly )
{
int prev_size_sum = m_orig[m_nPanes] - m_orig[0] - m_nBarThickness * m_nPanes;
int non_frozen_count = m_nPanes - m_nFrozenPaneCount;
int nTotalPanes = 0;
for( int i = 0; i < m_nPanes; ++i )
{
if( i + 1 == m_nPanes )
{
// Assigned all remaining value to the last pane without computation.
// This is done in order to prevent propagation of computation errors.
m_size[i] = FULL_SIZE - nTotalPanes;
}
else
{
if( m_frozen[i] )
{ // Frozen pane
m_size[i] = MulDivRound( m_size[i], prev_size_sum, size_sum);
}
else
{ // Non frozen pane
m_size[i] = MulDivRound( m_size[i], prev_size_sum, size_sum ) +
MulDivRound( size_sum - prev_size_sum, FULL_SIZE, size_sum * non_frozen_count );
}
}
// If a pane become to small, it will be adjusted with the proportional algorithm.
bFrozenOnly &= ( MulDivRound(m_size[i], size_sum, FULL_SIZE) <= m_pzMinSize[i] );
// Compute running sumof pane sizes.
nTotalPanes += m_size[i];
}
}
/* The previous section might set the flag bFrozenOnly in case a pane became too small.
In this case, we also want to execute this algorithm in order to respect the minimum
pane size constraint. */
if( !bFrozenOnly )
{
while (bGrow) // adjust sizes on the beginning
{ // and while we have growed something
bGrow = false;
remain = remain_new = FULL_SIZE;
for (i = 0; i < m_nPanes; i++) // grow small panes to minimal size
if ( MulDivRound(m_size[i], size_sum, FULL_SIZE) <= m_pzMinSize[i])
{
remain -= m_size[i];
if (MulDivRound(m_size[i], size_sum, FULL_SIZE) < m_pzMinSize[i])
{
if (m_pzMinSize[i] > size_sum)
m_size[i] = FULL_SIZE;
else
m_size[i] = MulDivRound(m_pzMinSize[i], FULL_SIZE, size_sum);
bGrow = true;
}
remain_new -= m_size[i];
}
if (remain_new <= 0) // if there isn't place to all panes
{ // set the minimal size to the leftmost/topmost
remain = FULL_SIZE; // and set zero size to the remainimg
for (i = 0; i < m_nPanes; i++)
{
if (size_sum == 0)
m_size[i] = 0;
else
m_size[i] = MulDivRound(m_pzMinSize[i], FULL_SIZE, size_sum);
if (m_size[i] > remain)
m_size[i] = remain;
remain -= m_size[i];
}
break;
}
if (remain_new != FULL_SIZE) // adjust other pane sizes, if we have growed some
for (i = 0; i < m_nPanes; i++)
if ( MulDivRound(m_size[i], size_sum, FULL_SIZE) != m_pzMinSize[i])
m_size[i] = MulDivRound(m_size[i], remain_new, remain);
}
}
// calculate positions (in pixels) from relative sizes
m_orig[0] = ( m_nOrientation == SSP_HORZ ? rcOuter.left:rcOuter.top );
for (i = 0; i < m_nPanes - 1; i++)
m_orig[i + 1] = m_orig[i] + MulDivRound(m_size[i], size_sum, FULL_SIZE) + m_nBarThickness;
m_orig[m_nPanes] = m_orig[0] + size_sum + m_nBarThickness * m_nPanes;
}