X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/550eb91ae219cea147de926940055815904bd4ef..6493aacaeb7b22b9fa35c559f7753e9fec0da71f:/src/generic/vscroll.cpp

diff --git a/src/generic/vscroll.cpp b/src/generic/vscroll.cpp
index cee98cef45..3fc8a940d5 100644
--- a/src/generic/vscroll.cpp
+++ b/src/generic/vscroll.cpp
@@ -2,7 +2,7 @@
 // Name:        src/generic/vscroll.cpp
 // Purpose:     wxVScrolledWindow implementation
 // Author:      Vadim Zeitlin
-// Modified by: Brad Anderson
+// Modified by:
 // Created:     30.05.03
 // RCS-ID:      $Id$
 // Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
@@ -25,8 +25,6 @@
 #endif
 
 #include "wx/vscroll.h"
-#include "wx/sizer.h"
-#include "wx/dc.h"
 
 // ----------------------------------------------------------------------------
 // event tables
@@ -173,6 +171,25 @@ void wxVScrolledWindow::UpdateScrollbar()
         h += OnGetLineHeight(line);
     }
 
+    // if we still have remaining space below, maybe we can fit everything?
+    if ( h < hWindow )
+    {
+        wxCoord hAll = h;
+        for ( size_t lineFirst = m_lineFirst; lineFirst > 0; lineFirst-- )
+        {
+            hAll += OnGetLineHeight(m_lineFirst - 1);
+            if ( hAll > hWindow )
+                break;
+        }
+
+        if ( hAll < hWindow )
+        {
+            // we don't need scrollbar at all
+            m_lineFirst = 0;
+            SetScrollbar(wxVERTICAL, 0, 0, 0);
+        }
+    }
+
     m_nVisible = line - m_lineFirst;
 
     int pageSize = m_nVisible;
@@ -265,25 +282,6 @@ void wxVScrolledWindow::RefreshAll()
     Refresh();
 }
 
-bool wxVScrolledWindow::Layout()
-{
-    if(GetSizer())
-    {
-        // adjust the sizer dimensions/position taking into account the
-        // virtual size and scrolled position of the window.
-
-        int y, w, h; // x is always 0 so no variable needed
-
-        y = -GetLinesHeight(0, GetFirstVisibleLine());
-        GetVirtualSize(&w, &h);
-        GetSizer()->SetDimension(0, y, w, h);
-        return true;
-    }
-
-    // fall back to default for LayoutConstraints
-    return wxPanel::Layout();
-}
-
 int wxVScrolledWindow::HitTest(wxCoord WXUNUSED(x), wxCoord y) const
 {
     const size_t lineMax = GetVisibleEnd();
@@ -324,7 +322,8 @@ bool wxVScrolledWindow::ScrollToLine(size_t line)
 
 
     // remember the currently shown lines for the refresh code below
-    size_t lineFirstOld = GetVisibleBegin();
+    size_t lineFirstOld = GetVisibleBegin(),
+           lineLastOld = GetVisibleEnd();
 
     m_lineFirst = line;
 
@@ -332,8 +331,20 @@ bool wxVScrolledWindow::ScrollToLine(size_t line)
     // the size of scrollbar thumb could have changed
     UpdateScrollbar();
 
-    // finally, scroll the actual window
-    ScrollWindow(0, GetLinesHeight(GetVisibleBegin(), lineFirstOld));
+
+    // finally refresh the display -- but only redraw as few lines as possible
+    // to avoid flicker
+    if ( GetVisibleBegin() >= lineLastOld ||
+            GetVisibleEnd() <= lineFirstOld )
+    {
+        // the simplest case: we don't have any old lines left, just redraw
+        // everything
+        Refresh();
+    }
+    else // overlap between the lines we showed before and should show now
+    {
+        ScrollWindow(0, GetLinesHeight(GetVisibleBegin(), lineFirstOld));
+    }
 
     return true;
 }
@@ -459,939 +470,5 @@ void wxVScrolledWindow::OnMouseWheel(wxMouseEvent& event)
         ScrollPages( units_to_scroll );
 }
 
-#endif
-
-
-
-
-// ----------------------------------------------------------------------------
-// wxVarScrolled Window event tables
-// ----------------------------------------------------------------------------
-
-BEGIN_EVENT_TABLE(wxHVScrolledWindow, wxPanel)
-    EVT_SIZE(wxHVScrolledWindow::OnSize)
-    EVT_SCROLLWIN(wxHVScrolledWindow::OnScroll)
-#if wxUSE_MOUSEWHEEL
-    EVT_MOUSEWHEEL(wxHVScrolledWindow::OnMouseWheel)
-#endif
-END_EVENT_TABLE()
-
-
-// ============================================================================
-// wxVarScrolled implementation
-// ============================================================================
-
-IMPLEMENT_ABSTRACT_CLASS(wxHVScrolledWindow, wxPanel)
-
-// ----------------------------------------------------------------------------
-// initialization
-// ----------------------------------------------------------------------------
-
-void wxHVScrolledWindow::Init()
-{
-    // we're initially empty
-    m_rowsMax =
-    m_columnsMax =
-    m_rowsFirst =
-    m_columnsFirst = 0;
-
-    // these should always be strictly positive
-    m_nRowsVisible =
-    m_nColumnsVisible = 1;
-
-    m_widthTotal =
-    m_heightTotal = 0;
-
-    m_physicalScrolling = true;
-
-#if wxUSE_MOUSEWHEEL
-    m_sumWheelRotation = 0;
-#endif
-}
-
-// ----------------------------------------------------------------------------
-// various helpers
-// ----------------------------------------------------------------------------
-
-wxCoord wxHVScrolledWindow::EstimateTotalHeight() const
-{
-    // estimate the total height: it is impossible to call
-    // OnGetLineHeight() for every line because there may be too many of
-    // them, so we just make a guess using some lines in the beginning,
-    // some in the end and some in the middle
-    static const size_t NUM_LINES_TO_SAMPLE = 10;
-
-    wxCoord heightTotal;
-    if ( m_rowsMax < 3*NUM_LINES_TO_SAMPLE )
-    {
-        // in this case calculating exactly is faster and more correct than
-        // guessing
-        heightTotal = GetRowsHeight(0, m_rowsMax);
-    }
-    else // too many lines to calculate exactly
-    {
-        // look at some lines in the beginning/middle/end
-        heightTotal =
-            GetRowsHeight(0, NUM_LINES_TO_SAMPLE) +
-                GetRowsHeight(m_rowsMax - NUM_LINES_TO_SAMPLE,
-                              m_rowsMax) +
-                    GetRowsHeight(m_rowsMax/2 - NUM_LINES_TO_SAMPLE/2,
-                                  m_rowsMax/2 + NUM_LINES_TO_SAMPLE/2);
-
-        // use the height of the lines we looked as the average
-        heightTotal = (wxCoord)
-                (((float)heightTotal / (3*NUM_LINES_TO_SAMPLE)) * m_rowsMax);
-    }
-
-    return heightTotal;
-}
-
-wxCoord wxHVScrolledWindow::EstimateTotalWidth() const
-{
-    // estimate the total width: it is impossible to call
-    // OnGetLineWidth() for every line because there may be too many of
-    // them, so we just make a guess using some lines in the beginning,
-    // some in the end and some in the middle
-    static const size_t NUM_LINES_TO_SAMPLE = 10;
-
-    wxCoord widthTotal;
-    if ( m_columnsMax < 3*NUM_LINES_TO_SAMPLE )
-    {
-        // in this case calculating exactly is faster and more correct than
-        // guessing
-        widthTotal = GetColumnsWidth(0, m_columnsMax);
-    }
-    else // too many lines to calculate exactly
-    {
-        // look at some lines in the beginning/middle/end
-        widthTotal =
-            GetColumnsWidth(0, NUM_LINES_TO_SAMPLE) +
-                GetColumnsWidth(m_columnsMax - NUM_LINES_TO_SAMPLE,
-                                m_columnsMax) +
-                    GetColumnsWidth(m_columnsMax/2 - NUM_LINES_TO_SAMPLE/2,
-                                    m_columnsMax/2 + NUM_LINES_TO_SAMPLE/2);
-
-        // use the width of the lines we looked as the average
-        widthTotal = (wxCoord)
-                (((float)widthTotal / (3*NUM_LINES_TO_SAMPLE)) * m_columnsMax);
-    }
-
-    return widthTotal;
-}
-
-wxCoord wxHVScrolledWindow::GetRowsHeight(size_t rowMin, size_t rowMax) const
-{
-    if ( rowMin == rowMax )
-        return 0;
-    else if ( rowMin > rowMax )
-        return -GetRowsHeight(rowMax, rowMin);
-    //else: lineMin < lineMax
-
-    // let the user code know that we're going to need all these lines
-    OnGetRowsHeightHint(rowMin, rowMax);
-
-    // do sum up their heights
-    wxCoord height = 0;
-    for ( size_t row = rowMin; row < rowMax; row++ )
-    {
-        height += OnGetRowHeight(row);
-    }
-
-    return height;
-}
-
-wxCoord wxHVScrolledWindow::GetColumnsWidth(size_t columnMin, size_t columnMax) const
-{
-    if ( columnMin == columnMax )
-        return 0;
-    else if ( columnMin > columnMax )
-        return -GetColumnsWidth(columnMax, columnMin);
-    //else: lineMin < lineMax
-
-    // let the user code know that we're going to need all these lines
-    OnGetColumnsWidthHint(columnMin, columnMax);
-
-    // do sum up their widths
-    wxCoord width = 0;
-    for ( size_t column = columnMin; column < columnMax; column++ )
-    {
-        width += OnGetColumnWidth(column);
-    }
-
-    return width;
-}
-
-size_t wxHVScrolledWindow::FindFirstFromBottom(size_t rowLast, bool full)
-{
-    const wxCoord hWindow = GetClientSize().y;
-
-    // go upwards until we arrive at a line such that lineLast is not visible
-    // any more when it is shown
-    size_t lineFirst = rowLast;
-    wxCoord h = 0;
-    for ( ;; )
-    {
-        h += OnGetRowHeight(lineFirst);
-
-        if ( h > hWindow )
-        {
-            // for this line to be fully visible we need to go one line
-            // down, but if it is enough for it to be only partly visible then
-            // this line will do as well
-            if ( full )
-            {
-                lineFirst++;
-            }
-
-            break;
-        }
-
-        if ( !lineFirst )
-            break;
-
-        lineFirst--;
-    }
-
-    return lineFirst;
-}
-
-size_t wxHVScrolledWindow::FindFirstFromRight(size_t columnLast, bool full)
-{
-    const wxCoord wWindow = GetClientSize().x;
-
-    // go upwards until we arrive at a line such that lineLast is not visible
-    // any more when it is shown
-    size_t lineFirst = columnLast;
-    wxCoord w = 0;
-    for ( ;; )
-    {
-        w += OnGetColumnWidth(lineFirst);
-
-        if ( w > wWindow )
-        {
-            // for this line to be fully visible we need to go one line
-            // down, but if it is enough for it to be only partly visible then
-            // this line will do as well
-            if ( full )
-            {
-                lineFirst++;
-            }
-
-            break;
-        }
-
-        if ( !lineFirst )
-            break;
-
-        lineFirst--;
-    }
-
-    return lineFirst;
-}
-
-void wxHVScrolledWindow::UpdateScrollbars()
-{
-    // see how many lines can we fit on screen (on both axes)
-    const wxCoord wWindow = GetClientSize().x;
-    const wxCoord hWindow = GetClientSize().y;
-
-    // first do the horizontal calculations
-    wxCoord w = 0;
-    size_t column;
-    for ( column = m_columnsFirst; column < m_columnsMax; column++ )
-    {
-        if ( w > wWindow )
-            break;
-
-        w += OnGetColumnWidth(column);
-    }
-
-    m_nColumnsVisible = column - m_columnsFirst;
-
-    int columnsPageSize = m_nColumnsVisible;
-    if ( w > wWindow )
-    {
-        // last line is only partially visible, we still need the scrollbar and
-        // so we have to "fix" pageSize because if it is equal to
-        // m_horizLineMax the scrollbar is not shown at all under MSW
-        columnsPageSize--;
-    }
-
-    // set the scrollbar parameters to reflect this
-    SetScrollbar(wxHORIZONTAL, m_columnsFirst, columnsPageSize, m_columnsMax);
-
-
-    // now do the vertical calculations
-    wxCoord h = 0;
-    size_t row;
-    for ( row = m_rowsFirst; row < m_rowsMax; row++ )
-    {
-        if ( h > hWindow )
-            break;
-
-        h += OnGetRowHeight(row);
-    }
-
-    m_nRowsVisible = row - m_rowsFirst;
-
-    int rowsPageSize = m_nRowsVisible;
-    if ( h > hWindow )
-    {
-        // last line is only partially visible, we still need the scrollbar and
-        // so we have to "fix" pageSize because if it is equal to m_vertLineMax
-        // the scrollbar is not shown at all under MSW
-        rowsPageSize--;
-    }
-
-    // set the scrollbar parameters to reflect this
-    SetScrollbar(wxVERTICAL, m_rowsFirst, rowsPageSize, m_rowsMax);
-}
-
-void wxHVScrolledWindow::PrepareDC(wxDC& dc)
-{
-    if(m_physicalScrolling)
-    {
-        dc.SetDeviceOrigin(-GetColumnsWidth(0, GetVisibleColumnsBegin()),
-                           -GetRowsHeight(0, GetVisibleRowsBegin()));
-    }
-}
-
-// ----------------------------------------------------------------------------
-// operations
-// ----------------------------------------------------------------------------
-
-void wxHVScrolledWindow::SetRowColumnCounts(size_t rowCount, size_t columnCount)
-{
-    // save the number of lines
-    m_rowsMax = rowCount;
-    m_columnsMax = columnCount;
-
-    // and our estimate for their total height and width
-    m_heightTotal = EstimateTotalHeight();
-    m_widthTotal = EstimateTotalWidth();
-
-    // recalculate the scrollbars parameters
-    if(m_rowsFirst >= rowCount)
-        m_rowsFirst = (rowCount > 0) ? rowCount - 1 : 0;
-
-    if(m_columnsFirst >= columnCount)
-        m_columnsFirst = (columnCount > 0) ? columnCount - 1 : 0;
-
-#if 0
-    // checks disabled due to size_t type of members
-    // but leave them here if anyone would want to do some debugging
-    if(m_rowsFirst < 0)
-        m_rowsFirst = 0;
-
-    if(m_columnsFirst < 0)
-        m_columnsFirst = 0;
-#endif
-
-    ScrollToRowColumn(m_rowsFirst, m_columnsFirst);
-}
-
-void wxHVScrolledWindow::RefreshColumn(size_t column)
-{
-    // is this line visible?
-    if ( !IsColumnVisible(column) )
-    {
-        // no, it is useless to do anything
-        return;
-    }
-
-    // calculate the rect occupied by this line on screen
-    wxRect rect;
-    rect.width = OnGetColumnWidth(column);
-    rect.height = GetClientSize().y;
-    for ( size_t n = GetVisibleColumnsBegin(); n < column; n++ )
-    {
-        rect.y += OnGetColumnWidth(n);
-    }
-
-    // do refresh it
-    RefreshRect(rect);
-}
+#endif // wxUSE_MOUSEWHEEL
 
-void wxHVScrolledWindow::RefreshRow(size_t row)
-{
-    // is this line visible?
-    if ( !IsRowVisible(row) )
-    {
-        // no, it is useless to do anything
-        return;
-    }
-
-    // calculate the rect occupied by this line on screen
-    wxRect rect;
-    rect.width = GetClientSize().x;
-    rect.height = OnGetRowHeight(row);
-    for ( size_t n = GetVisibleRowsBegin(); n < row; n++ )
-    {
-        rect.y += OnGetRowHeight(n);
-    }
-
-    // do refresh it
-    RefreshRect(rect);
-}
-
-void wxHVScrolledWindow::RefreshRowColumn(size_t row, size_t column)
-{
-    // is this line visible?
-    if ( !IsRowVisible(row) || !IsColumnVisible(column) )
-    {
-        // no, it is useless to do anything
-        return;
-    }
-
-    // calculate the rect occupied by this cell on screen
-    wxRect rect;
-    rect.height = OnGetRowHeight(row);
-    rect.width = OnGetColumnWidth(column);
-
-    size_t n;
-
-    for ( n = GetVisibleRowsBegin(); n < row; n++ )
-    {
-        rect.y += OnGetRowHeight(n);
-    }
-
-    for ( n = GetVisibleColumnsBegin(); n < column; n++ )
-    {
-        rect.x += OnGetColumnWidth(n);
-    }
-
-    // do refresh it
-    RefreshRect(rect);
-}
-
-void wxHVScrolledWindow::RefreshRows(size_t from, size_t to)
-{
-    wxASSERT_MSG( from <= to, _T("RefreshRows(): empty range") );
-
-    // clump the range to just the visible lines -- it is useless to refresh
-    // the other ones
-    if ( from < GetVisibleRowsBegin() )
-        from = GetVisibleRowsBegin();
-
-    if ( to > GetVisibleRowsEnd() )
-        to = GetVisibleRowsEnd();
-
-    // calculate the rect occupied by these lines on screen
-    wxRect rect;
-    rect.width = GetClientSize().x;
-    for ( size_t nBefore = GetVisibleRowsBegin();
-          nBefore < from;
-          nBefore++ )
-    {
-        rect.y += OnGetRowHeight(nBefore);
-    }
-
-    for ( size_t nBetween = from; nBetween <= to; nBetween++ )
-    {
-        rect.height += OnGetRowHeight(nBetween);
-    }
-
-    // do refresh it
-    RefreshRect(rect);
-}
-
-void wxHVScrolledWindow::RefreshColumns(size_t from, size_t to)
-{
-    wxASSERT_MSG( from <= to, _T("RefreshColumns(): empty range") );
-
-    // clump the range to just the visible lines -- it is useless to refresh
-    // the other ones
-    if ( from < GetVisibleColumnsBegin() )
-        from = GetVisibleColumnsBegin();
-
-    if ( to > GetVisibleColumnsEnd() )
-        to = GetVisibleColumnsEnd();
-
-    // calculate the rect occupied by these lines on screen
-    wxRect rect;
-    rect.height = GetClientSize().y;
-    for ( size_t nBefore = GetVisibleColumnsBegin();
-          nBefore < from;
-          nBefore++ )
-    {
-        rect.x += OnGetColumnWidth(nBefore);
-    }
-
-    for ( size_t nBetween = from; nBetween <= to; nBetween++ )
-    {
-        rect.width += OnGetColumnWidth(nBetween);
-    }
-
-    // do refresh it
-    RefreshRect(rect);
-}
-
-void wxHVScrolledWindow::RefreshRowsColumns(size_t fromRow, size_t toRow,
-                                            size_t fromColumn, size_t toColumn)
-{
-    wxASSERT_MSG( fromRow <= toRow || fromColumn <= toColumn,
-        _T("RefreshRowsColumns(): empty range") );
-
-    // clump the range to just the visible lines -- it is useless to refresh
-    // the other ones
-    if ( fromRow < GetVisibleRowsBegin() )
-        fromRow = GetVisibleRowsBegin();
-
-    if ( toRow > GetVisibleRowsEnd() )
-        toRow = GetVisibleRowsEnd();
-
-    if ( fromColumn < GetVisibleColumnsBegin() )
-        fromColumn = GetVisibleColumnsBegin();
-
-    if ( toColumn > GetVisibleColumnsEnd() )
-        toColumn = GetVisibleColumnsEnd();
-
-    // calculate the rect occupied by these lines on screen
-    wxRect rect;
-    size_t nBefore, nBetween;
-
-    for ( nBefore = GetVisibleRowsBegin();
-          nBefore < fromRow;
-          nBefore++ )
-    {
-        rect.y += OnGetRowHeight(nBefore);
-    }
-
-    for ( nBetween = fromRow; nBetween <= toRow; nBetween++ )
-    {
-        rect.height += OnGetRowHeight(nBetween);
-    }
-
-    for ( nBefore = GetVisibleColumnsBegin();
-          nBefore < fromColumn;
-          nBefore++ )
-    {
-        rect.x += OnGetColumnWidth(nBefore);
-    }
-
-    for ( nBetween = fromColumn; nBetween <= toColumn; nBetween++ )
-    {
-        rect.width += OnGetColumnWidth(nBetween);
-    }
-
-    // do refresh it
-    RefreshRect(rect);
-}
-
-void wxHVScrolledWindow::RefreshAll()
-{
-    UpdateScrollbars();
-
-    Refresh();
-}
-
-bool wxHVScrolledWindow::Layout()
-{
-    if(GetSizer() && m_physicalScrolling)
-    {
-        // adjust the sizer dimensions/position taking into account the
-        // virtual size and scrolled position of the window.
-
-        int x, y, w, h;
-
-        y = -GetRowsHeight(0, GetVisibleRowsBegin());
-        x = -GetColumnsWidth(0, GetVisibleColumnsBegin());
-        GetVirtualSize(&w, &h);
-        GetSizer()->SetDimension(x, y, w, h);
-        return true;
-    }
-
-    // fall back to default for LayoutConstraints
-    return wxPanel::Layout();
-}
-
-wxPoint wxHVScrolledWindow::HitTest(wxCoord x, wxCoord y) const
-{
-    const size_t rowMax = GetVisibleRowsEnd();
-    const size_t columnMax = GetVisibleColumnsEnd();
-
-    wxPoint hit(wxNOT_FOUND, wxNOT_FOUND);
-    for ( size_t row = GetVisibleRowsBegin();
-          row <= rowMax;
-          row++ )
-    {
-        y -= OnGetRowHeight(row);
-        if ( y < 0 )
-            hit.y = row;
-    }
-
-    for ( size_t column = GetVisibleColumnsBegin();
-          column <= columnMax;
-          column++ )
-    {
-        x -= OnGetColumnWidth(column);
-        if ( x < 0 )
-            hit.x = column;
-    }
-
-    return hit;
-}
-
-// ----------------------------------------------------------------------------
-// scrolling
-// ----------------------------------------------------------------------------
-
-bool wxHVScrolledWindow::ScrollToRowColumn(size_t row, size_t column)
-{
-    if ( !m_rowsMax && !m_columnsMax )
-    {
-        // we're empty, code below doesn't make sense in this case
-        return false;
-    }
-
-    bool scrolled = false;
-    scrolled |= ScrollToRow(row);
-    scrolled |= ScrollToColumn(column);
-
-    return scrolled;
-}
-
-bool wxHVScrolledWindow::ScrollToRow(size_t row)
-{
-    if ( !m_rowsMax )
-    {
-        // we're empty, code below doesn't make sense in this case
-        return false;
-    }
-
-    // determine the real first line to scroll to: we shouldn't scroll beyond
-    // the end
-    size_t lineFirstLast = FindFirstFromBottom(m_rowsMax - 1, true);
-    if ( row > lineFirstLast )
-        row = lineFirstLast;
-
-    // anything to do?
-    if ( row == m_rowsFirst )
-    {
-        // no
-        return false;
-    }
-
-
-    // remember the currently shown lines for the refresh code below
-    size_t lineFirstOld = GetVisibleRowsBegin();
-
-    m_rowsFirst = row;
-
-
-    // the size of scrollbar thumb could have changed
-    UpdateScrollbars();
-
-
-    // finally, scroll the actual window contents vertically
-    if(m_physicalScrolling)
-        ScrollWindow(0, GetRowsHeight(GetVisibleRowsBegin(), lineFirstOld));
-
-    return true;
-}
-
-bool wxHVScrolledWindow::ScrollToColumn(size_t column)
-{
-    if ( !m_columnsMax )
-    {
-        // we're empty, code below doesn't make sense in this case
-        return false;
-    }
-
-    // determine the real first line to scroll to: we shouldn't scroll beyond
-    // the end
-    size_t lineFirstLast = FindFirstFromRight(m_columnsMax - 1, true);
-    if ( column > lineFirstLast )
-        column = lineFirstLast;
-
-    // anything to do?
-    if ( column == m_columnsFirst )
-    {
-        // no
-        return false;
-    }
-
-
-    // remember the currently shown lines for the refresh code below
-    size_t lineFirstOld = GetVisibleColumnsBegin();
-
-    m_columnsFirst = column;
-
-
-    // the size of scrollbar thumb could have changed
-    UpdateScrollbars();
-
-    // finally, scroll the actual window contents horizontally
-    if(m_physicalScrolling)
-        ScrollWindow(GetColumnsWidth(GetVisibleColumnsBegin(), lineFirstOld), 0);
-
-    return true;
-}
-
-bool wxHVScrolledWindow::ScrollRows(int rows)
-{
-    rows += m_rowsFirst;
-    if ( rows < 0 )
-        rows = 0;
-
-    return ScrollToRow(rows);
-}
-
-bool wxHVScrolledWindow::ScrollColumns(int columns)
-{
-    columns += m_columnsFirst;
-    if ( columns < 0 )
-        columns = 0;
-
-    return ScrollToColumn(columns);
-}
-
-bool wxHVScrolledWindow::ScrollRowsColumns(int rows, int columns)
-{
-    rows += m_rowsFirst;
-    if ( rows < 0 )
-        rows = 0;
-
-    columns += m_columnsFirst;
-    if ( columns < 0 )
-        columns = 0;
-
-    return ScrollToRowColumn(rows, columns);
-}
-
-bool wxHVScrolledWindow::ScrollRowPages(int pages)
-{
-    bool didSomething = false;
-
-    while ( pages )
-    {
-        int line;
-        if ( pages > 0 )
-        {
-            line = GetVisibleRowsEnd();
-            if ( line )
-                line--;
-            pages--;
-        }
-        else // pages < 0
-        {
-            line = FindFirstFromBottom(GetVisibleRowsEnd());
-            pages++;
-        }
-
-        didSomething = ScrollToRow(line);
-    }
-
-    return didSomething;
-}
-
-bool wxHVScrolledWindow::ScrollColumnPages(int pages)
-{
-    bool didSomething = false;
-
-    while ( pages )
-    {
-        int line;
-        if ( pages > 0 )
-        {
-            line = GetVisibleColumnsEnd();
-            if ( line )
-                line--;
-            pages--;
-        }
-        else // pages < 0
-        {
-            line = FindFirstFromRight(GetVisibleColumnsEnd());
-            pages++;
-        }
-
-        didSomething = ScrollToColumn(line);
-    }
-
-    return didSomething;
-}
-
-bool wxHVScrolledWindow::ScrollPages(int rowPages, int columnPages)
-{
-    bool didSomething = false;
-
-    while ( rowPages )
-    {
-        int line;
-        if ( rowPages > 0 )
-        {
-            line = GetVisibleRowsEnd();
-            if ( line )
-                line--;
-            rowPages--;
-        }
-        else // rowPages < 0
-        {
-            line = FindFirstFromBottom(GetVisibleRowsBegin());
-            rowPages++;
-        }
-
-        didSomething = ScrollToRow(line);
-    }
-
-    while ( columnPages )
-    {
-        int line;
-        if ( columnPages > 0 )
-        {
-            line = GetVisibleColumnsEnd();
-            if ( line )
-                line--;
-            columnPages--;
-        }
-        else // columnPages < 0
-        {
-            line = FindFirstFromRight(GetVisibleColumnsBegin());
-            columnPages++;
-        }
-
-        didSomething |= ScrollToColumn(line);
-    }
-
-    return didSomething;
-}
-
-// ----------------------------------------------------------------------------
-// event handling
-// ----------------------------------------------------------------------------
-
-void wxHVScrolledWindow::OnSize(wxSizeEvent& event)
-{
-    UpdateScrollbars();
-    Layout();
-
-    event.Skip();
-}
-
-void wxHVScrolledWindow::OnScroll(wxScrollWinEvent& event)
-{
-    if(event.GetOrientation() == wxHORIZONTAL)
-    {
-        size_t columnsFirstNew;
-        const wxEventType evtType = event.GetEventType();
-
-        if ( evtType == wxEVT_SCROLLWIN_TOP )
-        {
-            columnsFirstNew = 0;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_BOTTOM )
-        {
-            columnsFirstNew = m_columnsMax;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_LINEUP )
-        {
-            columnsFirstNew = m_columnsFirst ? m_columnsFirst - 1 : 0;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_LINEDOWN )
-        {
-            columnsFirstNew = m_columnsFirst + 1;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_PAGEUP )
-        {
-            columnsFirstNew = FindFirstFromRight(m_columnsFirst);
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_PAGEDOWN )
-        {
-            columnsFirstNew = GetVisibleColumnsEnd();
-            if ( columnsFirstNew )
-                columnsFirstNew--;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_THUMBRELEASE )
-        {
-            columnsFirstNew = event.GetPosition();
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_THUMBTRACK )
-        {
-            columnsFirstNew = event.GetPosition();
-        }
-
-        else // unknown scroll event?
-        {
-            wxFAIL_MSG( _T("unknown scroll event type?") );
-            return;
-        }
-
-        ScrollToColumn(columnsFirstNew);
-    }
-    else if(event.GetOrientation() == wxVERTICAL)
-    {
-        size_t rowsFirstNew;
-        const wxEventType evtType = event.GetEventType();
-
-        if ( evtType == wxEVT_SCROLLWIN_TOP )
-        {
-            rowsFirstNew = 0;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_BOTTOM )
-        {
-            rowsFirstNew = m_rowsMax;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_LINEUP )
-        {
-            rowsFirstNew = m_rowsFirst ? m_rowsFirst - 1 : 0;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_LINEDOWN )
-        {
-            rowsFirstNew = m_rowsFirst + 1;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_PAGEUP )
-        {
-            rowsFirstNew = FindFirstFromBottom(m_rowsFirst);
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_PAGEDOWN )
-        {
-            rowsFirstNew = GetVisibleRowsEnd();
-            if ( rowsFirstNew )
-                rowsFirstNew--;
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_THUMBRELEASE )
-        {
-            rowsFirstNew = event.GetPosition();
-        }
-        else if ( evtType == wxEVT_SCROLLWIN_THUMBTRACK )
-        {
-            rowsFirstNew = event.GetPosition();
-        }
-
-        else // unknown scroll event?
-        {
-            wxFAIL_MSG( _T("unknown scroll event type?") );
-            return;
-        }
-
-        ScrollToRow(rowsFirstNew);
-    }
-
-
-#ifdef __WXMAC__
-    Update();
-#endif // __WXMAC__
-}
-
-#if wxUSE_MOUSEWHEEL
-
-void wxHVScrolledWindow::OnMouseWheel(wxMouseEvent& event)
-{
-    m_sumWheelRotation += event.GetWheelRotation();
-    int delta = event.GetWheelDelta();
-
-    // how much to scroll this time
-    int units_to_scroll = -(m_sumWheelRotation/delta);
-    if ( !units_to_scroll )
-        return;
-
-    m_sumWheelRotation += units_to_scroll*delta;
-
-    if ( !event.IsPageScroll() )
-        ScrollRows( units_to_scroll*event.GetLinesPerAction() );
-    else
-        // scroll pages instead of lines
-        ScrollRowPages( units_to_scroll );
-}
-
-#endif