X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/75cbbafdeb0e43751cc1e2a23a0b29462d3cbcaa..1c8e5c51f8a0a547a5183b1443d3ba059b65ce69:/src/generic/scrlwing.cpp?ds=sidebyside diff --git a/src/generic/scrlwing.cpp b/src/generic/scrlwing.cpp index d46d0a017c..00dac29274 100644 --- a/src/generic/scrlwing.cpp +++ b/src/generic/scrlwing.cpp @@ -18,10 +18,6 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __VMS -#define XtDisplay XTDISPLAY -#endif - // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" @@ -35,10 +31,9 @@ #include "wx/utils.h" #include "wx/panel.h" #include "wx/dcclient.h" - #if wxUSE_TIMER - #include "wx/timer.h" - #endif + #include "wx/timer.h" #include "wx/sizer.h" + #include "wx/settings.h" #endif #ifdef __WXMAC__ @@ -241,6 +236,12 @@ bool wxScrollHelperEvtHandler::ProcessEvent(wxEvent& event) return true; } + if ( evType == wxEVT_CHILD_FOCUS ) + { + m_scrollHelper->HandleOnChildFocus((wxChildFocusEvent &)event); + return true; + } + // reset the skipped flag (which might have been set to true in // ProcessEvent() above) to be able to test it below bool wasSkipped = event.GetSkipped(); @@ -277,10 +278,14 @@ bool wxScrollHelperEvtHandler::ProcessEvent(wxEvent& event) m_scrollHelper->HandleOnMouseLeave((wxMouseEvent &)event); } #if wxUSE_MOUSEWHEEL + // Use GTK's own scroll wheel handling in GtkScrolledWindow +#ifndef __WXGTK20__ else if ( evType == wxEVT_MOUSEWHEEL ) { m_scrollHelper->HandleOnMouseWheel((wxMouseEvent &)event); + return true; } +#endif #endif // wxUSE_MOUSEWHEEL else if ( evType == wxEVT_CHAR ) { @@ -468,22 +473,6 @@ wxWindow *wxScrollHelper::GetTargetWindow() const return m_targetWindow; } -#ifdef __WXMAC__ -static bool wxScrolledWindowHasChildren(wxWindow* win) -{ - wxWindowList::compatibility_iterator node = win->GetChildren().GetFirst(); - while ( node ) - { - wxWindow* child = node->GetData(); - if ( !child->IsKindOf(CLASSINFO(wxScrollBar)) ) - return true; - - node = node->GetNext(); - } - return false; -} -#endif - // ---------------------------------------------------------------------------- // scrolling implementation itself // ---------------------------------------------------------------------------- @@ -500,11 +489,6 @@ void wxScrollHelper::HandleOnScroll(wxScrollWinEvent& event) } bool needsRefresh = false; -#ifdef __WXMAC__ - // OS X blocks on immediate redraws, so make this a refresh - if (!wxScrolledWindowHasChildren(m_targetWindow)) - needsRefresh = true; -#endif int dx = 0, dy = 0; int orient = event.GetOrientation(); @@ -536,7 +520,12 @@ void wxScrollHelper::HandleOnScroll(wxScrollWinEvent& event) // flush all pending repaints before we change m_{x,y}ScrollPosition, as // otherwise invalidated area could be updated incorrectly later when // ScrollWindow() makes sure they're repainted before scrolling them +#ifdef __WXMAC__ + // wxWindowMac is taking care of making sure the update area is correctly + // set up, while not forcing an immediate redraw +#else m_targetWindow->Update(); +#endif } if (orient == wxHORIZONTAL) @@ -613,49 +602,36 @@ int wxScrollHelper::CalcScrollInc(wxScrollWinEvent& event) if (orient == wxHORIZONTAL) { - if (m_xScrollPixelsPerLine > 0) + if ( m_xScrollPosition + nScrollInc < 0 ) { - if ( m_xScrollPosition + nScrollInc < 0 ) - { - // As -ve as we can go - nScrollInc = -m_xScrollPosition; - } - else // check for the other bound + // As -ve as we can go + nScrollInc = -m_xScrollPosition; + } + else // check for the other bound + { + const int posMax = m_xScrollLines - m_xScrollLinesPerPage; + if ( m_xScrollPosition + nScrollInc > posMax ) { - const int posMax = m_xScrollLines - m_xScrollLinesPerPage; - if ( m_xScrollPosition + nScrollInc > posMax ) - { - // As +ve as we can go - nScrollInc = posMax - m_xScrollPosition; - } + // As +ve as we can go + nScrollInc = posMax - m_xScrollPosition; } } - else - m_targetWindow->Refresh(true, GetScrollRect()); } - else + else // wxVERTICAL { - if ( m_yScrollPixelsPerLine > 0 ) + if ( m_yScrollPosition + nScrollInc < 0 ) { - if ( m_yScrollPosition + nScrollInc < 0 ) - { - // As -ve as we can go - nScrollInc = -m_yScrollPosition; - } - else // check for the other bound - { - const int posMax = m_yScrollLines - m_yScrollLinesPerPage; - if ( m_yScrollPosition + nScrollInc > posMax ) - { - // As +ve as we can go - nScrollInc = posMax - m_yScrollPosition; - } - } + // As -ve as we can go + nScrollInc = -m_yScrollPosition; } - else + else // check for the other bound { - // VZ: why do we do this? (FIXME) - m_targetWindow->Refresh(true, GetScrollRect()); + const int posMax = m_yScrollLines - m_yScrollLinesPerPage; + if ( m_yScrollPosition + nScrollInc > posMax ) + { + // As +ve as we can go + nScrollInc = posMax - m_yScrollPosition; + } } } @@ -1078,29 +1054,6 @@ wxSize wxScrollHelper::ScrollGetBestVirtualSize() const return clientSize; } -// return the window best size from the given best virtual size -wxSize -wxScrollHelper::ScrollGetWindowSizeForVirtualSize(const wxSize& size) const -{ - // Only use the content to set the window size in the direction - // where there's no scrolling; otherwise we're going to get a huge - // window in the direction in which scrolling is enabled - int ppuX, ppuY; - GetScrollPixelsPerUnit(&ppuX, &ppuY); - - wxSize minSize = m_win->GetMinSize(); - if ( !minSize.IsFullySpecified() ) - minSize = m_win->GetSize(); - - wxSize best(size); - if (ppuX > 0) - best.x = minSize.x; - if (ppuY > 0) - best.y = minSize.y; - - return best; -} - // ---------------------------------------------------------------------------- // event handlers // ---------------------------------------------------------------------------- @@ -1213,18 +1166,18 @@ void wxScrollHelper::HandleOnChar(wxKeyEvent& event) if ( m_xScrollPosition != xScrollOld ) { - wxScrollWinEvent event(wxEVT_SCROLLWIN_THUMBTRACK, m_xScrollPosition, + wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBTRACK, m_xScrollPosition, wxHORIZONTAL); - event.SetEventObject(m_win); - m_win->GetEventHandler()->ProcessEvent(event); + evt.SetEventObject(m_win); + m_win->GetEventHandler()->ProcessEvent(evt); } if ( m_yScrollPosition != yScrollOld ) { - wxScrollWinEvent event(wxEVT_SCROLLWIN_THUMBTRACK, m_yScrollPosition, + wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBTRACK, m_yScrollPosition, wxVERTICAL); - event.SetEventObject(m_win); - m_win->GetEventHandler()->ProcessEvent(event); + evt.SetEventObject(m_win); + m_win->GetEventHandler()->ProcessEvent(evt); } } @@ -1370,6 +1323,80 @@ void wxScrollHelper::HandleOnMouseWheel(wxMouseEvent& event) #endif // wxUSE_MOUSEWHEEL +void wxScrollHelper::HandleOnChildFocus(wxChildFocusEvent& event) +{ + // this event should be processed by all windows in parenthood chain, + // e.g. so that nested wxScrolledWindows work correctly + event.Skip(); + + // find the immediate child under which the window receiving focus is: + wxWindow *win = event.GetWindow(); + + if ( win == m_targetWindow ) + return; // nothing to do + + while ( win->GetParent() != m_targetWindow ) + { + win = win->GetParent(); + if ( !win ) + return; // event is not from a child of the target window + } + + // if the child is not fully visible, try to scroll it into view: + int stepx, stepy; + GetScrollPixelsPerUnit(&stepx, &stepy); + + // NB: we don't call CalcScrolledPosition() on win->GetPosition() here, + // because children' positions are already scrolled + wxRect winrect(win->GetPosition(), win->GetSize()); + wxSize view(m_targetWindow->GetClientSize()); + + int startx, starty; + GetViewStart(&startx, &starty); + + // first in vertical direction: + if ( stepy > 0 ) + { + int diff = 0; + + if ( winrect.GetTop() < 0 ) + { + diff = winrect.GetTop(); + } + else if ( winrect.GetBottom() > view.y ) + { + diff = winrect.GetBottom() - view.y + 1; + // round up to next scroll step if we can't get exact position, + // so that the window is fully visible: + diff += stepy - 1; + } + + starty = (starty * stepy + diff) / stepy; + } + + // then horizontal: + if ( stepx > 0 ) + { + int diff = 0; + + if ( winrect.GetLeft() < 0 ) + { + diff = winrect.GetLeft(); + } + else if ( winrect.GetRight() > view.x ) + { + diff = winrect.GetRight() - view.x + 1; + // round up to next scroll step if we can't get exact position, + // so that the window is fully visible: + diff += stepx - 1; + } + + startx = (startx * stepx + diff) / stepx; + } + + Scroll(startx, starty); +} + // ---------------------------------------------------------------------------- // wxScrolledWindow implementation // ---------------------------------------------------------------------------- @@ -1416,6 +1443,46 @@ void wxScrolledWindow::OnPaint(wxPaintEvent& event) event.Skip(); } +wxSize wxScrolledWindow::DoGetBestSize() const +{ + // NB: We don't do this in WX_FORWARD_TO_SCROLL_HELPER, because not + // all scrollable windows should behave like this, only those that + // contain children controls within scrollable area + // (i.e., wxScrolledWindow) and other some scrollable windows may + // have different DoGetBestSize() implementation (e.g. wxTreeCtrl). + + wxSize best = wxPanel::DoGetBestSize(); + + if ( GetAutoLayout() ) + { + // Only use the content to set the window size in the direction + // where there's no scrolling; otherwise we're going to get a huge + // window in the direction in which scrolling is enabled + int ppuX, ppuY; + GetScrollPixelsPerUnit(&ppuX, &ppuY); + + // NB: This code used to use *current* size if min size wasn't + // specified, presumably to get some reasonable (i.e., larger than + // minimal) size. But that's a wrong thing to do in GetBestSize(), + // so we use minimal size as specified. If the app needs some + // minimal size for its scrolled window, it should set it and put + // the window into sizer as expandable so that it can use all space + // available to it. + // + // See also http://svn.wxwidgets.org/viewvc/wx?view=rev&revision=45864 + + wxSize minSize = GetMinSize(); + + if ( ppuX > 0 ) + best.x = minSize.x + wxSystemSettings::GetMetric(wxSYS_VSCROLL_X); + + if ( ppuY > 0 ) + best.y = minSize.y + wxSystemSettings::GetMetric(wxSYS_HSCROLL_Y); + } + + return best; +} + #ifdef __WXMSW__ WXLRESULT wxScrolledWindow::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam,