/////////////////////////////////////////////////////////////////////////////
-// Name: include/wx/scrolwin.h
+// Name: wx/scrolwin.h
// Purpose: wxScrolledWindow, wxScrolledControl and wxScrollHelper
// Author: Vadim Zeitlin
// Modified by:
bool noRefresh = false );
// scroll to the given (in logical coords) position
- void Scroll(int x, int y) { DoScroll(x, y); }
- void Scroll(const wxPoint& pt) { DoScroll(pt.x, pt.y); }
+ //
+ // notice that for backwards compatibility reasons Scroll() is virtual as
+ // the existing code could override it but new code should override
+ // DoScroll() instead
+ virtual void Scroll(int x, int y) { DoScroll(x, y); }
+ virtual void Scroll(const wxPoint& pt) { DoScroll(pt.x, pt.y); }
// get/set the page size for this orientation (wxVERTICAL/wxHORIZONTAL)
int GetScrollPageSize(int orient) const;
// Clear() is necessary. If false, the whole canvas is invalidated and a
// Clear() is necessary. Disable for when the scroll increment is used to
// actually scroll a non-constant distance
+ //
+ // Notice that calling this method with a false argument doesn't disable
+ // scrolling the window in this direction, it just changes the mechanism by
+ // which it is implemented to not use wxWindow::ScrollWindow().
virtual void EnableScrolling(bool x_scrolling, bool y_scrolling);
+ // Disable use of keyboard keys for scrolling. By default cursor movement
+ // keys (including Home, End, Page Up and Down) are used to scroll the
+ // window appropriately. If the derived class uses these keys for something
+ // else, e.g. changing the currently selected item, this function can be
+ // used to disable this behaviour as it's not only not necessary then but
+ // can actually be actively harmful if another object forwards a keyboard
+ // event corresponding to one of the above keys to us using
+ // ProcessWindowEvent() because the event will always be processed which
+ // can be undesirable.
+ void DisableKeyboardScrolling() { m_kbdScrollingEnabled = false; }
+
// Get the view start
void GetViewStart(int *x, int *y) const { DoGetViewStart(x, y); }
// delete the event handler we installed
void DeleteEvtHandler();
- // calls wxScrollHelperEvtHandler::ResetDrawnFlag(), see explanation
- // in wxScrollHelperEvtHandler::ProcessEvent()
- void ResetDrawnFlag();
-
// this function should be overridden to return the size available for
// m_targetWindow inside m_win of the given size
//
wxTimer *m_timerAutoScroll;
+ // The number of pixels to scroll in horizontal and vertical directions
+ // respectively.
+ //
+ // If 0, means that the scrolling in the given direction is disabled.
int m_xScrollPixelsPerLine;
int m_yScrollPixelsPerLine;
int m_xScrollPosition;
bool m_xScrollingEnabled;
bool m_yScrollingEnabled;
+ bool m_kbdScrollingEnabled;
+
#if wxUSE_MOUSEWHEEL
int m_wheelRotation;
#endif // wxUSE_MOUSEWHEEL
wxScrollHelperEvtHandler *m_handler;
- DECLARE_NO_COPY_CLASS(wxScrollHelperBase)
+ wxDECLARE_NO_COPY_CLASS(wxScrollHelperBase);
};
// this macro can be used in a wxScrollHelper-derived class to forward wxWindow
// but wxScrolledWindow includes wxControlContainer functionality and that's
// not always desirable.
template<class T>
-class WXDLLIMPEXP_CORE wxScrolled : public T,
- public wxScrollHelper,
- private wxScrolledT_Helper
+class wxScrolled : public T,
+ public wxScrollHelper,
+ private wxScrolledT_Helper
{
public:
wxScrolled() : wxScrollHelper(this) { }
this->MacSetClipChildren(true);
#endif
- this->Connect(wxEVT_PAINT, wxPaintEventHandler(wxScrolled::OnPaint));
-
// by default, we're scrollable in both directions (but if one of the
// styles is specified explicitly, we shouldn't add the other one
// automatically)
if ( !(style & (wxHSCROLL | wxVSCROLL)) )
style |= wxHSCROLL | wxVSCROLL;
+#ifdef __WXOSX__
+ bool retval = T::Create(parent, winid, pos, size, style, name);
+ if ( retval && (style & wxALWAYS_SHOW_SB) )
+ ShowScrollbars(wxSHOW_SB_ALWAYS, wxSHOW_SB_ALWAYS);
+ return retval;
+#else
+ if ( style & wxALWAYS_SHOW_SB )
+ ShowScrollbars(wxSHOW_SB_ALWAYS, wxSHOW_SB_ALWAYS);
+
return T::Create(parent, winid, pos, size, style, name);
+#endif
}
+#ifdef __WXMSW__
// we need to return a special WM_GETDLGCODE value to process just the
// arrows but let the other navigation characters through
-#ifdef __WXMSW__
virtual WXLRESULT MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
{
return FilterMSWWindowProc(nMsg, T::MSWWindowProc(nMsg, wParam, lParam));
}
+
+ // Take into account the scroll origin.
+ virtual void MSWAdjustBrushOrg(int* xOrg, int* yOrg) const
+ {
+ CalcUnscrolledPosition(*xOrg, *yOrg, xOrg, yOrg);
+ }
#endif // __WXMSW__
WX_FORWARD_TO_SCROLL_HELPER()
}
private:
- // this is needed for wxEVT_PAINT processing hack described in
- // wxScrollHelperEvtHandler::ProcessEvent()
- void OnPaint(wxPaintEvent& event)
- {
- // the user code didn't really draw the window if we got here, so set
- // this flag to try to call OnDraw() later
- ResetDrawnFlag();
- event.Skip();
- }
-
// VC++ 6 gives warning for the declaration of template member function
// without definition
-#if !defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7)
- DECLARE_NO_COPY_CLASS(wxScrolled)
+#ifndef __VISUALC6__
+ wxDECLARE_NO_COPY_CLASS(wxScrolled);
#endif
};
-// VC++ <= 6 requires this; it's unlikely any other specializations would
-// be needed by user code _and_ they were using VC6, so we list only wxWindow
-// (typical use) and wxPanel (wxScrolledWindow use) specializations here
-WXDLLIMPEXP_TEMPLATE_INSTANCE_CORE( wxScrolled<wxPanel> )
-WXDLLIMPEXP_TEMPLATE_INSTANCE_CORE( wxScrolled<wxWindow> )
+#ifdef __VISUALC6__
+ // disable the warning about non dll-interface class used as base for
+ // dll-interface class: it's harmless in this case
+ #pragma warning(push)
+ #pragma warning(disable:4275)
+#endif
// for compatibility with existing code, we provide wxScrolledWindow
// "typedef" for wxScrolled<wxPanel>. It's not a real typedef because we
typedef wxScrolled<wxWindow> wxScrolledCanvas;
+#ifdef __VISUALC6__
+ #pragma warning(pop)
+#endif
+
#endif // _WX_SCROLWIN_H_BASE_
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