X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/1c6c52fdefbee79857043cabd7e7e2f768bb09ad..f239a20092359e3c914adb79bd39f3f5d2b2e06f:/src/generic/vscroll.cpp diff --git a/src/generic/vscroll.cpp b/src/generic/vscroll.cpp index e6cf0713d8..c1b5a4071a 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: Brad Anderson, David Warkentin // Created: 30.05.03 // RCS-ID: $Id$ // Copyright: (c) 2003 Vadim Zeitlin @@ -53,7 +53,7 @@ public: private: wxVarScrollHelperBase *m_scrollHelper; - DECLARE_NO_COPY_CLASS(wxVarScrollHelperEvtHandler) + wxDECLARE_NO_COPY_CLASS(wxVarScrollHelperEvtHandler); }; // ============================================================================ @@ -97,10 +97,6 @@ bool wxVarScrollHelperEvtHandler::ProcessEvent(wxEvent& event) if ( wasSkipped ) event.Skip(false); - // reset the skipped flag to false as it might have been set to true in - // ProcessEvent() above - event.Skip(false); - if ( evType == wxEVT_SCROLLWIN_TOP || evType == wxEVT_SCROLLWIN_BOTTOM || evType == wxEVT_SCROLLWIN_LINEUP || @@ -127,8 +123,7 @@ bool wxVarScrollHelperEvtHandler::ProcessEvent(wxEvent& event) } #endif // wxUSE_MOUSEWHEEL - if ( processed ) - event.Skip(wasSkipped); + event.Skip(wasSkipped); return processed; } @@ -144,7 +139,7 @@ bool wxVarScrollHelperEvtHandler::ProcessEvent(wxEvent& event) wxVarScrollHelperBase::wxVarScrollHelperBase(wxWindow *win) { - wxASSERT_MSG( win, _T("associated window can't be NULL in wxVarScrollHelperBase") ); + wxASSERT_MSG( win, wxT("associated window can't be NULL in wxVarScrollHelperBase") ); #if wxUSE_MOUSEWHEEL m_sumWheelRotation = 0; @@ -155,8 +150,9 @@ wxVarScrollHelperBase::wxVarScrollHelperBase(wxWindow *win) m_unitFirst = 0; m_win = - m_targetWindow = (wxWindow *)NULL; + m_targetWindow = NULL; + m_physicalScrolling = true; m_handler = NULL; m_win = win; @@ -331,7 +327,7 @@ size_t wxVarScrollHelperBase::GetNewScrollPosition(wxScrollWinEvent& event) cons } // unknown scroll event? - wxFAIL_MSG( _T("unknown scroll event type?") ); + wxFAIL_MSG( wxT("unknown scroll event type?") ); return 0; } @@ -475,7 +471,7 @@ void wxVarScrollHelperBase::RefreshUnit(size_t unit) void wxVarScrollHelperBase::RefreshUnits(size_t from, size_t to) { - wxASSERT_MSG( from <= to, _T("RefreshUnits(): empty range") ); + wxASSERT_MSG( from <= to, wxT("RefreshUnits(): empty range") ); // clump the range to just the visible units -- it is useless to refresh // the other ones @@ -592,7 +588,7 @@ bool wxVarScrollHelperBase::DoScrollToUnit(size_t unit) // to avoid flicker. We can't do this if we have children because they // won't be scrolled if ( m_targetWindow->GetChildren().empty() && - GetVisibleBegin() >= unitLastOld || GetVisibleEnd() <= unitFirstOld ) + (GetVisibleBegin() >= unitLastOld || GetVisibleEnd() <= unitFirstOld) ) { // the simplest case: we don't have any old units left, just redraw // everything @@ -600,7 +596,12 @@ bool wxVarScrollHelperBase::DoScrollToUnit(size_t unit) } else // scroll the window { + // Avoid scrolling visible parts of the screen on Mac +#ifdef __WXMAC__ + if (m_physicalScrolling && m_targetWindow->IsShownOnScreen()) +#else if ( m_physicalScrolling ) +#endif { wxCoord dx = 0, dy = GetUnitsSize(GetVisibleBegin(), unitFirstOld); @@ -668,6 +669,39 @@ bool wxVarScrollHelperBase::DoScrollPages(int pages) void wxVarScrollHelperBase::HandleOnSize(wxSizeEvent& event) { + if ( m_unitMax ) + { + // sometimes change in varscrollable window's size can result in + // unused empty space after the last item. Fix it by decrementing + // first visible item position according to the available space. + + // determine free space + const wxCoord sWindow = GetOrientationTargetSize(); + wxCoord s = 0; + size_t unit; + for ( unit = m_unitFirst; unit < m_unitMax; ++unit ) + { + if ( s > sWindow ) + break; + + s += OnGetUnitSize(unit); + } + wxCoord freeSpace = sWindow - s; + + // decrement first visible item index as long as there is free space + size_t idealUnitFirst; + for ( idealUnitFirst = m_unitFirst; + idealUnitFirst > 0; + idealUnitFirst-- ) + { + wxCoord us = OnGetUnitSize(idealUnitFirst-1); + if ( freeSpace < us ) + break; + freeSpace -= us; + } + m_unitFirst = idealUnitFirst; + } + UpdateScrollbar(); event.Skip(); @@ -788,7 +822,7 @@ void wxVarHVScrollHelper::RefreshRowColumn(size_t row, size_t column) h_rect.x += OnGetColumnWidth(n); } - // refresh but specialize the behavior if we have a single target window + // refresh but specialize the behaviour if we have a single target window if ( wxVarVScrollHelper::GetTargetWindow() == wxVarHScrollHelper::GetTargetWindow() ) { v_rect.x = h_rect.x; @@ -811,7 +845,7 @@ void wxVarHVScrollHelper::RefreshRowsColumns(size_t fromRow, size_t toRow, size_t fromColumn, size_t toColumn) { wxASSERT_MSG( fromRow <= toRow || fromColumn <= toColumn, - _T("RefreshRowsColumns(): empty range") ); + wxT("RefreshRowsColumns(): empty range") ); // clump the range to just the visible units -- it is useless to refresh // the other ones @@ -855,7 +889,7 @@ void wxVarHVScrollHelper::RefreshRowsColumns(size_t fromRow, size_t toRow, h_rect.width += OnGetColumnWidth(nBetween); } - // refresh but specialize the behavior if we have a single target window + // refresh but specialize the behaviour if we have a single target window if ( wxVarVScrollHelper::GetTargetWindow() == wxVarHScrollHelper::GetTargetWindow() ) { v_rect.x = h_rect.x; @@ -923,3 +957,60 @@ IMPLEMENT_ABSTRACT_CLASS(wxVScrolledWindow, wxPanel) IMPLEMENT_ABSTRACT_CLASS(wxHScrolledWindow, wxPanel) IMPLEMENT_ABSTRACT_CLASS(wxHVScrolledWindow, wxPanel) + +#if WXWIN_COMPATIBILITY_2_8 + +// =========================================================================== +// wxVarVScrollLegacyAdaptor +// =========================================================================== + +size_t wxVarVScrollLegacyAdaptor::GetFirstVisibleLine() const +{ return GetVisibleRowsBegin(); } + +size_t wxVarVScrollLegacyAdaptor::GetLastVisibleLine() const +{ return GetVisibleRowsEnd() - 1; } + +size_t wxVarVScrollLegacyAdaptor::GetLineCount() const +{ return GetRowCount(); } + +void wxVarVScrollLegacyAdaptor::SetLineCount(size_t count) +{ SetRowCount(count); } + +void wxVarVScrollLegacyAdaptor::RefreshLine(size_t line) +{ RefreshRow(line); } + +void wxVarVScrollLegacyAdaptor::RefreshLines(size_t from, size_t to) +{ RefreshRows(from, to); } + +bool wxVarVScrollLegacyAdaptor::ScrollToLine(size_t line) +{ return ScrollToRow(line); } + +bool wxVarVScrollLegacyAdaptor::ScrollLines(int lines) +{ return ScrollRows(lines); } + +bool wxVarVScrollLegacyAdaptor::ScrollPages(int pages) +{ return ScrollRowPages(pages); } + +wxCoord wxVarVScrollLegacyAdaptor::OnGetLineHeight(size_t WXUNUSED(n)) const +{ + wxFAIL_MSG( wxT("OnGetLineHeight() must be overridden if OnGetRowHeight() isn't!") ); + return -1; +} + +void wxVarVScrollLegacyAdaptor::OnGetLinesHint(size_t WXUNUSED(lineMin), + size_t WXUNUSED(lineMax)) const +{ +} + +wxCoord wxVarVScrollLegacyAdaptor::OnGetRowHeight(size_t n) const +{ + return OnGetLineHeight(n); +} + +void wxVarVScrollLegacyAdaptor::OnGetRowsHeightHint(size_t rowMin, + size_t rowMax) const +{ + OnGetLinesHint(rowMin, rowMax); +} + +#endif // WXWIN_COMPATIBILITY_2_8