/////////////////////////////////////////////////////////////////////////////
// Name: gtk/scrolwin.cpp
// Purpose: wxScrolledWindow implementation
-// Author: Julian Smart
+// Author: Robert Roebling
// Modified by: Ron Lee
// Created: 01/02/97
// RCS-ID: $Id$
-// Copyright: (c) Julian Smart and Markus Holzem
-// Licence: wxWindows license
+// Copyright: (c) Robert Roebling
+// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
+#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
#pragma implementation "scrolwin.h"
#endif
if (g_blockEventsOnDrag) return;
if (!win->m_hasVMT) return;
-
+
win->GtkVScroll( adjust->value,
GET_SCROLL_TYPE(GTK_SCROLLED_WINDOW(win->m_widget)->vscrollbar) );
}
GtkHConnectEvent();
// these handlers block mouse events to any window during scrolling such as
- // motion events and prevent GTK and wxWindows from fighting over where the
+ // motion events and prevent GTK and wxWidgets from fighting over where the
// slider should be
gtk_signal_connect( GTK_OBJECT(scrolledWindow->vscrollbar), "button_press_event",
PostCreation();
Show( TRUE );
-
+
return TRUE;
}
{
wxPanel::DoSetVirtualSize( x, y );
AdjustScrollbars();
+
+#if wxUSE_CONSTRAINTS
+ if (GetAutoLayout())
+ Layout();
+#endif
}
/*
int noUnitsX, int noUnitsY,
int xPos, int yPos, bool noRefresh )
{
- int old_x = m_xScrollPixelsPerLine * m_xScrollPosition;
- int old_y = m_yScrollPixelsPerLine * m_yScrollPosition;
+ int xs, ys;
+ GetViewStart (& xs, & ys);
+
+ int old_x = m_xScrollPixelsPerLine * xs;
+ int old_y = m_yScrollPixelsPerLine * ys;
m_xScrollPixelsPerLine = pixelsPerUnitX;
m_yScrollPixelsPerLine = pixelsPerUnitY;
m_hAdjust->value = m_xScrollPosition = xPos;
m_vAdjust->value = m_yScrollPosition = yPos;
+ // Setting hints here should arguably be deprecated, but without it
+ // a sizer might override this manual scrollbar setting in old code.
m_targetWindow->SetVirtualSizeHints( noUnitsX * pixelsPerUnitX, noUnitsY * pixelsPerUnitY );
+ m_targetWindow->SetVirtualSize( noUnitsX * pixelsPerUnitX, noUnitsY * pixelsPerUnitY );
+
if (!noRefresh)
{
int new_x = m_xScrollPixelsPerLine * m_xScrollPosition;
if (m_xScrollPixelsPerLine == 0)
{
m_hAdjust->upper = 1.0;
+ m_hAdjust->page_increment = 1.0;
m_hAdjust->page_size = 1.0;
}
else
{
m_hAdjust->upper = vw / m_xScrollPixelsPerLine;
- m_hAdjust->page_size = (w / m_xScrollPixelsPerLine);
+ m_hAdjust->page_increment = (w / m_xScrollPixelsPerLine);
+ m_hAdjust->page_size = m_hAdjust->page_increment;
// If the scrollbar hits the right side, move the window
// right to keep it from over extending.
- if( m_hAdjust->value + m_hAdjust->page_size > m_hAdjust->upper )
+ if ((m_hAdjust->value != 0.0) && (m_hAdjust->value + m_hAdjust->page_size > m_hAdjust->upper))
{
m_hAdjust->value = m_hAdjust->upper - m_hAdjust->page_size;
- m_xScrollPosition = (int)m_hAdjust->value;
+ if (m_hAdjust->value < 0.0)
+ m_hAdjust->value = 0.0;
+
+ if (GetChildren().GetCount() == 0)
+ m_xScrollPosition = (int)m_hAdjust->value; // This is enough without child windows
+ else
+ gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" ); // Actually scroll window
}
}
if (m_yScrollPixelsPerLine == 0)
{
m_vAdjust->upper = 1.0;
+ m_vAdjust->page_increment = 1.0;
m_vAdjust->page_size = 1.0;
}
else
{
m_vAdjust->upper = vh / m_yScrollPixelsPerLine;
- m_vAdjust->page_size = (h / m_yScrollPixelsPerLine);
+ m_vAdjust->page_increment = (h / m_yScrollPixelsPerLine);
+ m_vAdjust->page_size = m_vAdjust->page_increment;
- if( m_vAdjust->value + m_vAdjust->page_size > m_vAdjust->upper )
+ if ((m_vAdjust->value != 0.0) && (m_vAdjust->value + m_vAdjust->page_size > m_vAdjust->upper))
{
m_vAdjust->value = m_vAdjust->upper - m_vAdjust->page_size;
- m_yScrollPosition = (int)m_vAdjust->value;
+ if (m_vAdjust->value < 0.0)
+ m_vAdjust->value = 0.0;
+
+ if (GetChildren().GetCount() == 0)
+ m_yScrollPosition = (int)m_vAdjust->value;
+ else
+ gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" );
}
}
- m_xScrollLinesPerPage = (int)(m_hAdjust->page_size + 0.5);
- m_yScrollLinesPerPage = (int)(m_vAdjust->page_size + 0.5);
+ m_xScrollLinesPerPage = (int)(m_hAdjust->page_increment + 0.5);
+ m_yScrollLinesPerPage = (int)(m_vAdjust->page_increment + 0.5);
gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "changed" );
gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "changed" );
m_targetWindow = target;
}
-wxWindow *wxScrolledWindow::GetTargetWindow()
+wxWindow *wxScrolledWindow::GetTargetWindow() const
{
return m_targetWindow;
}
m_targetWindow->ScrollWindow( (old_x-m_xScrollPosition)*m_xScrollPixelsPerLine, 0 );
- // Just update the scrollbar, don't send any wxWindows event
+ // Just update the scrollbar, don't send any wxWidgets event
GtkHDisconnectEvent();
gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" );
GtkHConnectEvent();
m_targetWindow->ScrollWindow( 0, (old_y-m_yScrollPosition)*m_yScrollPixelsPerLine );
- // Just update the scrollbar, don't send any wxWindows event
+ // Just update the scrollbar, don't send any wxWidgets event
GtkVDisconnectEvent();
gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" );
GtkVConnectEvent();
void wxScrolledWindow::DoCalcScrolledPosition(int x, int y, int *xx, int *yy) const
{
+ int xs, ys;
+ GetViewStart (& xs, & ys);
+
if ( xx )
- *xx = x - m_xScrollPosition * m_xScrollPixelsPerLine;
+ *xx = x - xs * m_xScrollPixelsPerLine;
if ( yy )
- *yy = y - m_yScrollPosition * m_yScrollPixelsPerLine;
+ *yy = y - ys * m_yScrollPixelsPerLine;
}
void wxScrolledWindow::DoCalcUnscrolledPosition(int x, int y, int *xx, int *yy) const
{
+ int xs, ys;
+ GetViewStart (& xs, & ys);
+
if ( xx )
- *xx = x + m_xScrollPosition * m_xScrollPixelsPerLine;
+ *xx = x + xs * m_xScrollPixelsPerLine;
if ( yy )
- *yy = y + m_yScrollPosition * m_yScrollPixelsPerLine;
+ *yy = y + ys * m_yScrollPixelsPerLine;
}
int wxScrolledWindow::CalcScrollInc(wxScrollWinEvent& event)
{
if (orient == wxHORIZONTAL)
{
- // Just update the scrollbar, don't send any wxWindows event
+ // Just update the scrollbar, don't send any wxWidgets event
GtkHDisconnectEvent();
gtk_signal_emit_by_name( GTK_OBJECT(m_hAdjust), "value_changed" );
GtkHConnectEvent();
}
else
{
- // Just update the scrollbar, don't send any wxWindows event
+ // Just update the scrollbar, don't send any wxWidgets event
GtkVDisconnectEvent();
gtk_signal_emit_by_name( GTK_OBJECT(m_vAdjust), "value_changed" );
GtkVConnectEvent();
// Default OnSize resets scrollbars, if any
void wxScrolledWindow::OnSize(wxSizeEvent& WXUNUSED(event))
{
- if( m_targetWindow != this )
- m_targetWindow->SetVirtualSize( m_targetWindow->GetClientSize() );
+ if( GetAutoLayout() || m_targetWindow->GetAutoLayout() )
+ {
+ if( m_targetWindow != this )
+ m_targetWindow->FitInside();
- SetVirtualSize( GetClientSize() );
+ FitInside();
-#if wxUSE_CONSTRAINTS
- if (GetAutoLayout())
- Layout();
-#endif
+ // FIXME: Something is really weird here... This should be
+ // called by FitInside above (and apparently is), yet the
+ // scrollsub sample will get the scrollbar wrong if resized
+ // quickly. This masks the bug, but is surely not the right
+ // answer at all.
+ AdjustScrollbars();
+ }
+ else
+ {
+ AdjustScrollbars();
+ }
}
// This calls OnDraw, having adjusted the origin according to the current
szx, szy, // view size (total)
clix, cliy; // view size (on screen)
- ViewStart(&stx, &sty);
+ GetViewStart(&stx, &sty);
GetClientSize(&clix, &cliy);
GetVirtualSize(&szx, &szy);
yScrollOld = GetScrollPos(wxVERTICAL);
int dsty;
- switch ( event.KeyCode() )
+ switch ( event.GetKeyCode() )
{
case WXK_PAGEUP:
case WXK_PRIOR:
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