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Added test for no-change in crollwin.

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@5785 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling 2000-02-01 18:12:20 +00:00
parent 07dc73b114
commit 3d2b9c202d
1 changed files with 20 additions and 19 deletions
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39
src/generic/scrolwin.cpp
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@ -260,7 +260,7 @@ void wxScrolledWindow::OnScroll(wxScrollWinEvent& event)
m_targetWindow->ScrollWindow(0, -m_yScrollPixelsPerLine * nScrollInc, (const wxRect *) NULL);
else
m_targetWindow->Refresh();
}
}
#ifdef __WXMAC__
m_targetWindow->MacUpdateImmediately() ;
#endif
@ -385,14 +385,14 @@ void wxScrolledWindow::AdjustScrollbars()
if (m_xScrollLines > 0)
{
// Calculate page size i.e. number of scroll units you get on the
// current client window
// Calculate page size i.e. number of scroll units you get on the
// current client window
int noPagePositions = (int) ( (w/(double)m_xScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1) noPagePositions = 1;
// Correct position if greater than extent of canvas minus
// the visible portion of it or if below zero
m_xScrollPosition = wxMin( m_xScrollLines-noPagePositions, m_xScrollPosition);
// the visible portion of it or if below zero
m_xScrollPosition = wxMin( m_xScrollLines-noPagePositions, m_xScrollPosition);
m_xScrollPosition = wxMax( 0, m_xScrollPosition );
SetScrollbar(wxHORIZONTAL, m_xScrollPosition, noPagePositions, m_xScrollLines);
@ -407,13 +407,13 @@ void wxScrolledWindow::AdjustScrollbars()
if (m_yScrollLines > 0)
{
// Calculate page size i.e. number of scroll units you get on the
// current client window
// Calculate page size i.e. number of scroll units you get on the
// current client window
int noPagePositions = (int) ( (h/(double)m_yScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1) noPagePositions = 1;
// Correct position if greater than extent of canvas minus
// the visible portion of it or if below zero
// the visible portion of it or if below zero
m_yScrollPosition = wxMin( m_yScrollLines-noPagePositions, m_yScrollPosition );
m_yScrollPosition = wxMax( 0, m_yScrollPosition );
@ -509,43 +509,44 @@ void wxScrolledWindow::Scroll( int x_pos, int y_pos )
int old_x = m_xScrollPosition;
m_xScrollPosition = x_pos;
// Calculate page size i.e. number of scroll units you get on the
// current client window
// Calculate page size i.e. number of scroll units you get on the
// current client window
int noPagePositions = (int) ( (w/(double)m_xScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1) noPagePositions = 1;
// Correct position if greater than extent of canvas minus
// the visible portion of it or if below zero
// the visible portion of it or if below zero
m_xScrollPosition = wxMin( m_xScrollLines-noPagePositions, m_xScrollPosition );
m_xScrollPosition = wxMax( 0, m_xScrollPosition );
m_targetWindow->SetScrollPos( wxHORIZONTAL, m_xScrollPosition, TRUE );
if (old_x == m_xScrollPosition) return;
m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 );
m_targetWindow->SetScrollPos( wxHORIZONTAL, m_xScrollPosition, TRUE );
m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 );
}
if (y_pos != -1)
{
int old_y = m_yScrollPosition;
m_yScrollPosition = y_pos;
// Calculate page size i.e. number of scroll units you get on the
// current client window
// Calculate page size i.e. number of scroll units you get on the
// current client window
int noPagePositions = (int) ( (h/(double)m_yScrollPixelsPerLine) + 0.5 );
if (noPagePositions < 1) noPagePositions = 1;
// Correct position if greater than extent of canvas minus
// the visible portion of it or if below zero
// the visible portion of it or if below zero
m_yScrollPosition = wxMin( m_yScrollLines-noPagePositions, m_yScrollPosition );
m_yScrollPosition = wxMax( 0, m_yScrollPosition );
if (old_y == m_yScrollPosition) return;
m_targetWindow->SetScrollPos( wxVERTICAL, m_yScrollPosition, TRUE );
m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine );
}
#ifdef __WXMAC__
m_targetWindow->MacUpdateImmediately() ;
m_targetWindow->MacUpdateImmediately();
#endif
}