// Ron Lee on 10.4.02: virtual size / auto scrollbars et al.
// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) wxWindows team
+// Copyright: (c) wxWidgets team
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "genscrolwin.h"
#endif
#include "wx/scrolwin.h"
#include "wx/panel.h"
+#if wxUSE_TIMER
#include "wx/timer.h"
+#endif
#include "wx/sizer.h"
+#include "wx/recguard.h"
#ifdef __WXMSW__
#include <windows.h> // for DLGC_WANTARROWS
IMPLEMENT_CLASS(wxScrolledWindow, wxGenericScrolledWindow)
+/*
+ TODO PROPERTIES
+ style wxHSCROLL | wxVSCROLL
+*/
+
// ----------------------------------------------------------------------------
// wxScrollHelperEvtHandler: intercept the events from the window and forward
// them to wxScrollHelper
virtual bool ProcessEvent(wxEvent& event);
- void ResetDrawnFlag() { m_hasDrawnWindow = FALSE; }
+ void ResetDrawnFlag() { m_hasDrawnWindow = false; }
private:
wxScrollHelper *m_scrollHelper;
DECLARE_NO_COPY_CLASS(wxScrollHelperEvtHandler)
};
+#if wxUSE_TIMER
// ----------------------------------------------------------------------------
// wxAutoScrollTimer: the timer used to generate a stream of scroll events when
// a captured mouse is held outside the window
}
}
}
+#endif
// ----------------------------------------------------------------------------
// wxScrollHelperEvtHandler
// anything in the window. We set it to true here but reset it to false in
// wxScrolledWindow::OnPaint() handler (which wouldn't be called if the
// user code defined OnPaint() in the derived class)
- m_hasDrawnWindow = TRUE;
+ m_hasDrawnWindow = true;
// pass it on to the real handler
bool processed = wxEvtHandler::ProcessEvent(event);
{
m_scrollHelper->HandleOnSize((wxSizeEvent &)event);
- return TRUE;
+ return true;
}
if ( processed )
// OnDraw() below (from HandleOnPaint)
if ( m_hasDrawnWindow )
{
- return TRUE;
+ return true;
}
}
- // reset the skipped flag to FALSE as it might have been set to TRUE in
+ // reset the skipped flag to false as it might have been set to true in
// ProcessEvent() above
- event.Skip(FALSE);
+ event.Skip(false);
if ( evType == wxEVT_PAINT )
{
m_scrollHelper->HandleOnPaint((wxPaintEvent &)event);
- return TRUE;
+ return true;
}
if ( evType == wxEVT_SCROLLWIN_TOP ||
return !event.GetSkipped();
}
- return FALSE;
+ return false;
}
// ----------------------------------------------------------------------------
m_yScrollLinesPerPage = 0;
m_xScrollingEnabled =
- m_yScrollingEnabled = TRUE;
+ m_yScrollingEnabled = true;
m_scaleX =
m_scaleY = 1.0;
m_targetWindow->SetVirtualSize( w, h );
if (do_refresh && !noRefresh)
- m_targetWindow->Refresh(TRUE, GetScrollRect());
+ m_targetWindow->Refresh(true, GetScrollRect());
#ifndef __WXUNIVERSAL__
// If the target is not the same as the window with the scrollbars,
else
{
// otherwise this has been done by AdjustScrollbars, above
-#ifdef __WXMAC__
- m_targetWindow->Update() ;
-#endif
}
#endif // !__WXUNIVERSAL__
}
m_win->SetScrollPos(wxVERTICAL, m_yScrollPosition);
}
- bool needsRefresh = FALSE;
+ bool needsRefresh = false;
int dx = 0,
dy = 0;
if (orient == wxHORIZONTAL)
}
else
{
- needsRefresh = TRUE;
+ needsRefresh = true;
}
}
else
}
else
{
- needsRefresh = TRUE;
+ needsRefresh = true;
}
}
if ( needsRefresh )
{
- m_targetWindow->Refresh(TRUE, GetScrollRect());
+ m_targetWindow->Refresh(true, GetScrollRect());
}
else
{
m_targetWindow->ScrollWindow(dx, dy, GetScrollRect());
}
-
-#ifdef __WXMAC__
- m_targetWindow->Update() ;
-#endif
}
int wxScrollHelper::CalcScrollInc(wxScrollWinEvent& event)
nScrollInc = noPositions - m_xScrollPosition; // As +ve as we can go
}
else
- m_targetWindow->Refresh(TRUE, GetScrollRect());
+ m_targetWindow->Refresh(true, GetScrollRect());
}
else
{
else
{
// VZ: why do we do this? (FIXME)
- m_targetWindow->Refresh(TRUE, GetScrollRect());
+ m_targetWindow->Refresh(true, GetScrollRect());
}
}
// Adjust the scrollbars - new version.
void wxScrollHelper::AdjustScrollbars()
{
-#ifdef __WXMAC__
- m_targetWindow->Update();
-#endif
+ static wxRecursionGuardFlag s_flagReentrancy;
+ wxRecursionGuard guard(s_flagReentrancy);
+ if ( guard.IsInside() )
+ {
+ // don't reenter AdjustScrollbars() while another call to
+ // AdjustScrollbars() is in progress because this may lead to calling
+ // ScrollWindow() twice and this can really happen under MSW if
+ // SetScrollbar() call below adds or removes the scrollbar which
+ // changes the window size and hence results in another
+ // AdjustScrollbars() call
+ return;
+ }
int w = 0, h = 0;
int oldw, oldh;
{
m_xScrollLines = 0;
m_xScrollPosition = 0;
- m_win->SetScrollbar (wxHORIZONTAL, 0, 0, 0, FALSE);
+ m_win->SetScrollbar (wxHORIZONTAL, 0, 0, 0, false);
}
else
{
oldh = h;
GetTargetSize( &w, &h );
- } while ( w != oldw && h != oldh );
+ } while ( w != oldw || h != oldh );
#ifdef __WXMOTIF__
// Sorry, some Motif-specific code to implement a backing pixmap
m_targetWindow->ScrollWindow( m_xScrollPixelsPerLine * (oldXScroll - m_xScrollPosition), 0,
GetScrollRect() );
else
- m_targetWindow->Refresh(TRUE, GetScrollRect());
+ m_targetWindow->Refresh(true, GetScrollRect());
}
if (oldYScroll != m_yScrollPosition)
m_targetWindow->ScrollWindow( 0, m_yScrollPixelsPerLine * (oldYScroll-m_yScrollPosition),
GetScrollRect() );
else
- m_targetWindow->Refresh(TRUE, GetScrollRect());
+ m_targetWindow->Refresh(true, GetScrollRect());
}
-
-#ifdef __WXMAC__
- m_targetWindow->Update();
-#endif
}
void wxScrollHelper::DoPrepareDC(wxDC& dc)
if (((x_pos == -1) || (x_pos == m_xScrollPosition)) &&
((y_pos == -1) || (y_pos == m_yScrollPosition))) return;
-#ifdef __WXMAC__
- m_targetWindow->Update();
-#endif
-
int w, h;
GetTargetSize(&w, &h);
GetScrollRect() );
}
}
-
-#ifdef __WXMAC__
- m_targetWindow->Update();
-#endif
-
}
void wxScrollHelper::EnableScrolling (bool x_scroll, bool y_scroll)
void wxScrollHelper::StopAutoScrolling()
{
+#if wxUSE_TIMER
if ( m_timerAutoScroll )
{
delete m_timerAutoScroll;
m_timerAutoScroll = (wxTimer *)NULL;
}
+#endif
}
void wxScrollHelper::HandleOnMouseEnter(wxMouseEvent& event)
if ( !m_targetWindow->HasScrollbar(orient) )
return;
+#if wxUSE_TIMER
delete m_timerAutoScroll;
m_timerAutoScroll = new wxAutoScrollTimer
(
orient
);
m_timerAutoScroll->Start(50); // FIXME: make configurable
+#endif
}
}
CalcScrolledPosition(0,0, &x,&y);
GetVirtualSize(&w, &h);
GetSizer()->SetDimension(x, y, w, h);
- return TRUE;
+ return true;
}
// fall back to default for LayoutConstraints
wxPanel::DoSetVirtualSize( x, y );
AdjustScrollbars();
-#if wxUSE_CONSTRAINTS
if (GetAutoLayout())
Layout();
-#endif
}
void wxGenericScrolledWindow::OnPaint(wxPaintEvent& event)
}
#ifdef __WXMSW__
-long
+WXLRESULT
wxGenericScrolledWindow::MSWWindowProc(WXUINT nMsg,
WXWPARAM wParam,
WXLPARAM lParam)
{
- long rc = wxPanel::MSWWindowProc(nMsg, wParam, lParam);
+ WXLRESULT rc = wxPanel::MSWWindowProc(nMsg, wParam, lParam);
+#ifndef __WXWINCE__
// we need to process arrows ourselves for scrolling
if ( nMsg == WM_GETDLGCODE )
{
rc |= DLGC_WANTARROWS;
}
+#endif
return rc;
}
#endif // __WXMSW__
-#if WXWIN_COMPATIBILITY
-
-void wxGenericScrolledWindow::GetScrollUnitsPerPage (int *x_page, int *y_page) const
-{
- *x_page = GetScrollPageSize(wxHORIZONTAL);
- *y_page = GetScrollPageSize(wxVERTICAL);
-}
-
-void wxGenericScrolledWindow::CalcUnscrolledPosition(int x, int y, float *xx, float *yy) const
-{
- if ( xx )
- *xx = (float)(x + m_xScrollPosition * m_xScrollPixelsPerLine);
- if ( yy )
- *yy = (float)(y + m_yScrollPosition * m_yScrollPixelsPerLine);
-}
-
-#endif // WXWIN_COMPATIBILITY
-
#endif // !wxGTK
// vi:sts=4:sw=4:et
projects / wxWidgets.git / blobdiff