X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b19bcdeb2b172a9aa12c4a0a2f732c9d1608fe09..f239a20092359e3c914adb79bd39f3f5d2b2e06f:/src/generic/scrlwing.cpp diff --git a/src/generic/scrlwing.cpp b/src/generic/scrlwing.cpp index 300f0a1463..7c84a72e18 100644 --- a/src/generic/scrlwing.cpp +++ b/src/generic/scrlwing.cpp @@ -203,8 +203,13 @@ bool wxScrollHelperEvtHandler::ProcessEvent(wxEvent& event) // user code defined OnPaint() in the derived class) m_hasDrawnWindow = true; - // pass it on to the real handler - bool processed = wxEvtHandler::ProcessEvent(event); + // Pass it on to the real handler: notice that we must not call + // ProcessEvent() on this object itself as it wouldn't pass it to the next + // handler (i.e. the real window) if we're called from a previous handler + // (as indicated by "process here only" flag being set) and we do want to + // execute the handler defined in the window we're associated with right + // now, without waiting until TryAfter() is called from wxEvtHandler. + bool processed = m_nextHandler->ProcessEvent(event); // always process the size events ourselves, even if the user code handles // them as well, as we need to AdjustScrollbars() @@ -298,8 +303,18 @@ bool wxScrollHelperEvtHandler::ProcessEvent(wxEvent& event) } } - if ( processed ) - event.Skip(wasSkipped); + event.Skip(wasSkipped); + + // We called ProcessEvent() on the next handler, meaning that we explicitly + // worked around the request to process the event in this handler only. As + // explained above, this is unfortunately really necessary but the trouble + // is that the event will continue to be post-processed by the previous + // handler resulting in duplicate calls to event handlers. Call the special + // function below to prevent this from happening, base class DoTryChain() + // will check for it and behave accordingly. + // + // And if we're not called from DoTryChain(), this won't do anything anyhow. + event.DidntHonourProcessOnlyIn(); return processed; } @@ -314,7 +329,7 @@ bool wxScrollHelperEvtHandler::ProcessEvent(wxEvent& event) wxScrollHelperBase::wxScrollHelperBase(wxWindow *win) { - wxASSERT_MSG( win, _T("associated window can't be NULL in wxScrollHelper") ); + wxASSERT_MSG( win, wxT("associated window can't be NULL in wxScrollHelper") ); m_xScrollPixelsPerLine = m_yScrollPixelsPerLine = @@ -328,6 +343,8 @@ wxScrollHelperBase::wxScrollHelperBase(wxWindow *win) m_xScrollingEnabled = m_yScrollingEnabled = true; + m_kbdScrollingEnabled = true; + m_scaleX = m_scaleY = 1.0; #if wxUSE_MOUSEWHEEL @@ -829,93 +846,76 @@ void wxScrollHelperBase::HandleOnPaint(wxPaintEvent& WXUNUSED(event)) // this they always have the priority void wxScrollHelperBase::HandleOnChar(wxKeyEvent& event) { - int stx = 0, sty = 0, // view origin - szx = 0, szy = 0, // view size (total) - clix = 0, cliy = 0; // view size (on screen) - - GetViewStart(&stx, &sty); - GetTargetSize(&clix, &cliy); - m_targetWindow->GetVirtualSize(&szx, &szy); - - if( m_xScrollPixelsPerLine ) + if ( !m_kbdScrollingEnabled ) { - clix /= m_xScrollPixelsPerLine; - szx /= m_xScrollPixelsPerLine; - } - else - { - clix = 0; - szx = -1; - } - if( m_yScrollPixelsPerLine ) - { - cliy /= m_yScrollPixelsPerLine; - szy /= m_yScrollPixelsPerLine; - } - else - { - cliy = 0; - szy = -1; + event.Skip(); + return; } - int xScrollOld = m_xScrollPosition, - yScrollOld = m_yScrollPosition; + // prepare the event this key press maps to + wxScrollWinEvent newEvent; + + newEvent.SetPosition(0); + newEvent.SetEventObject(m_win); + + // this is the default, it's changed to wxHORIZONTAL below if needed + newEvent.SetOrientation(wxVERTICAL); + + // some key events result in scrolling in both horizontal and vertical + // direction, e.g. Ctrl-{Home,End}, if this flag is true we should generate + // a second event in horizontal direction in addition to the primary one + bool sendHorizontalToo = false; - int dsty; switch ( event.GetKeyCode() ) { case WXK_PAGEUP: - dsty = sty - (5 * cliy / 6); - Scroll(-1, (dsty == -1) ? 0 : dsty); + newEvent.SetEventType(wxEVT_SCROLLWIN_PAGEUP); break; case WXK_PAGEDOWN: - Scroll(-1, sty + (5 * cliy / 6)); + newEvent.SetEventType(wxEVT_SCROLLWIN_PAGEDOWN); break; case WXK_HOME: - Scroll(0, event.ControlDown() ? 0 : -1); - break; + newEvent.SetEventType(wxEVT_SCROLLWIN_TOP); - case WXK_END: - Scroll(szx - clix, event.ControlDown() ? szy - cliy : -1); + sendHorizontalToo = event.ControlDown(); break; - case WXK_UP: - Scroll(-1, sty - 1); - break; + case WXK_END: + newEvent.SetEventType(wxEVT_SCROLLWIN_BOTTOM); - case WXK_DOWN: - Scroll(-1, sty + 1); + sendHorizontalToo = event.ControlDown(); break; case WXK_LEFT: - Scroll(stx - 1, -1); + newEvent.SetOrientation(wxHORIZONTAL); + // fall through + + case WXK_UP: + newEvent.SetEventType(wxEVT_SCROLLWIN_LINEUP); break; case WXK_RIGHT: - Scroll(stx + 1, -1); + newEvent.SetOrientation(wxHORIZONTAL); + // fall through + + case WXK_DOWN: + newEvent.SetEventType(wxEVT_SCROLLWIN_LINEDOWN); break; default: - // not for us + // not a scrolling key event.Skip(); + return; } - if ( m_xScrollPosition != xScrollOld ) - { - wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBTRACK, m_xScrollPosition, - wxHORIZONTAL); - evt.SetEventObject(m_win); - m_win->GetEventHandler()->ProcessEvent(evt); - } + m_win->ProcessWindowEvent(newEvent); - if ( m_yScrollPosition != yScrollOld ) + if ( sendHorizontalToo ) { - wxScrollWinEvent evt(wxEVT_SCROLLWIN_THUMBTRACK, m_yScrollPosition, - wxVERTICAL); - evt.SetEventObject(m_win); - m_win->GetEventHandler()->ProcessEvent(evt); + newEvent.SetOrientation(wxHORIZONTAL); + m_win->ProcessWindowEvent(newEvent); } } @@ -934,11 +934,7 @@ bool wxScrollHelperBase::SendAutoScrollEvents(wxScrollWinEvent& event) const void wxScrollHelperBase::StopAutoScrolling() { #if wxUSE_TIMER - if ( m_timerAutoScroll ) - { - delete m_timerAutoScroll; - m_timerAutoScroll = NULL; - } + wxDELETE(m_timerAutoScroll); #endif } @@ -990,7 +986,7 @@ void wxScrollHelperBase::HandleOnMouseLeave(wxMouseEvent& event) // but seems to happen sometimes under wxMSW - maybe it's a bug // there but for now just ignore it - //wxFAIL_MSG( _T("can't understand where has mouse gone") ); + //wxFAIL_MSG( wxT("can't understand where has mouse gone") ); return; } @@ -1073,7 +1069,7 @@ void wxScrollHelperBase::HandleOnChildFocus(wxChildFocusEvent& event) if ( win == m_targetWindow ) return; // nothing to do -#ifdef __WXMAC__ +#if defined( __WXOSX__ ) && wxUSE_SCROLLBAR if (wxDynamicCast(win, wxScrollBar)) return; #endif @@ -1115,7 +1111,7 @@ void wxScrollHelperBase::HandleOnChildFocus(wxChildFocusEvent& event) // part of a wxComboCtrl visible and the button would still be outside the // scrolled area. But do so only if the parent fits *entirely* inside the // scrolled window. In other situations, such as nested wxPanel or - // wxScrolledWindows, the parent might be way to big to fit inside the + // wxScrolledWindows, the parent might be way too big to fit inside the // scrolled window. If that is the case, then make only the focused window // visible if ( win->GetParent() != m_targetWindow)