///////////////////////////////////////////////////////////////////////////////
-// Name: common/statbar.cpp
+// Name: src/common/statbar.cpp
// Purpose: wxStatusBarBase implementation
// Author: Vadim Zeitlin
-// Modified by:
+// Modified by: Francesco Montorsi
// Created: 14.10.01
// RCS-ID: $Id$
// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// License: wxWindows license
+// License: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
// headers
// ----------------------------------------------------------------------------
-#ifdef __GNUG__
- #pragma implementation "statbar.h"
-#endif
-
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#pragma hdrstop
#endif
+#if wxUSE_STATUSBAR
+
+#include "wx/statusbr.h"
+
#ifndef WX_PRECOMP
- #include "wx/statusbr.h"
+ #include "wx/frame.h"
#endif //WX_PRECOMP
-#if wxUSE_STATUSBAR
+const char wxStatusBarNameStr[] = "statusBar";
+
// ============================================================================
// wxStatusBarBase implementation
IMPLEMENT_DYNAMIC_CLASS(wxStatusBar, wxWindow)
+#include "wx/arrimpl.cpp" // This is a magic incantation which must be done!
+WX_DEFINE_EXPORTED_OBJARRAY(wxStatusBarPaneArray)
+
+
// ----------------------------------------------------------------------------
// ctor/dtor
// ----------------------------------------------------------------------------
wxStatusBarBase::wxStatusBarBase()
{
- m_nFields = 0;
-
- InitWidths();
+ m_bSameWidthForAllPanes = true;
}
wxStatusBarBase::~wxStatusBarBase()
{
- FreeWidths();
-}
-
-// ----------------------------------------------------------------------------
-// widths array handling
-// ----------------------------------------------------------------------------
-
-void wxStatusBarBase::InitWidths()
-{
- m_statusWidths = NULL;
-}
-
-void wxStatusBarBase::FreeWidths()
-{
- delete [] m_statusWidths;
+ // notify the frame that it doesn't have a status bar any longer to avoid
+ // dangling pointers
+ wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
+ if ( frame && frame->GetStatusBar() == this )
+ frame->SetStatusBar(NULL);
}
// ----------------------------------------------------------------------------
{
wxCHECK_RET( number > 0, _T("invalid field number in SetFieldsCount") );
- bool refresh = FALSE;
+ if ( (size_t)number > m_panes.GetCount() )
+ {
+ wxStatusBarPane newPane;
- if ( number != m_nFields )
+ // add more entries with the default style and zero width
+ // (this will be set later)
+ for (size_t i = m_panes.GetCount(); i < (size_t)number; ++i)
+ m_panes.Add(newPane);
+ }
+ else if ( (size_t)number < m_panes.GetCount() )
{
- m_nFields = number;
+ // remove entries in excess
+ m_panes.RemoveAt(number, m_panes.GetCount()-number);
+ }
- ReinitWidths();
+ // SetStatusWidths will automatically refresh
+ SetStatusWidths(number, widths);
+}
- refresh = TRUE;
- }
- //else: keep the old m_statusWidths if we had them
+void wxStatusBarBase::SetStatusWidths(int WXUNUSED_UNLESS_DEBUG(n),
+ const int widths[])
+{
+ wxASSERT_MSG( (size_t)n == m_panes.GetCount(), _T("field number mismatch") );
- if ( widths )
+ if (widths == NULL)
{
- SetStatusWidths(number, widths);
+ // special value meaning: override explicit pane widths and make them all
+ // of the same size
+ m_bSameWidthForAllPanes = true;
+ }
+ else
+ {
+ for ( size_t i = 0; i < m_panes.GetCount(); i++ )
+ m_panes[i].m_nWidth = widths[i];
- // already done from SetStatusWidths()
- refresh = FALSE;
+ m_bSameWidthForAllPanes = false;
}
- if ( refresh )
- Refresh();
+ // update the display after the widths changed
+ Refresh();
}
-void wxStatusBarBase::SetStatusWidths(int WXUNUSED_UNLESS_DEBUG(n),
- const int widths[])
+void wxStatusBarBase::SetStatusStyles(int WXUNUSED_UNLESS_DEBUG(n),
+ const int styles[])
{
- wxCHECK_RET( widths, _T("NULL pointer in SetStatusWidths") );
+ wxCHECK_RET( styles, _T("NULL pointer in SetStatusStyles") );
- wxASSERT_MSG( n == m_nFields, _T("field number mismatch") );
+ wxASSERT_MSG( (size_t)n == m_panes.GetCount(), _T("field number mismatch") );
- if ( !m_statusWidths )
- m_statusWidths = new int[m_nFields];
-
- for ( int i = 0; i < m_nFields; i++ )
- {
- m_statusWidths[i] = widths[i];
- }
+ for ( size_t i = 0; i < m_panes.GetCount(); i++ )
+ m_panes[i].m_nStyle = styles[i];
// update the display after the widths changed
Refresh();
{
wxArrayInt widths;
- if ( m_statusWidths == NULL )
+ if ( m_bSameWidthForAllPanes )
{
- if ( m_nFields )
+ // Default: all fields have the same width. This is not always
+ // possible to do exactly (if widthTotal is not divisible by
+ // m_panes.GetCount()) - if that happens, we distribute the extra
+ // pixels among all fields:
+ int widthToUse = widthTotal;
+
+ for ( size_t i = m_panes.GetCount(); i > 0; i-- )
{
- // default: all fields have the same width
- int nWidth = widthTotal / m_nFields;
- for ( int i = 0; i < m_nFields; i++ )
- {
- widths.Add(nWidth);
- }
+ // divide the unassigned width evently between the
+ // not yet processed fields:
+ int w = widthToUse / i;
+ widths.Add(w);
+ widthToUse -= w;
}
- //else: we're empty anyhow
}
- else // have explicit status widths
+ else // do not override explicit pane widths
{
// calculate the total width of all the fixed width fields and the
// total number of var field widths counting with multiplicity
- int nTotalWidth = 0,
+ size_t nTotalWidth = 0,
nVarCount = 0,
i;
- for ( i = 0; i < m_nFields; i++ )
+
+ for ( i = 0; i < m_panes.GetCount(); i++ )
{
- if ( m_statusWidths[i] >= 0 )
- {
- nTotalWidth += m_statusWidths[i];
- }
+ if ( m_panes[i].GetWidth() >= 0 )
+ nTotalWidth += m_panes[i].GetWidth();
else
- {
- nVarCount += -m_statusWidths[i];
- }
+ nVarCount += -m_panes[i].GetWidth();
}
// the amount of extra width we have per each var width field
- int nVarWidth;
- if ( nVarCount )
- {
- int widthExtra = widthTotal - nTotalWidth;
- nVarWidth = widthExtra > 0 ? widthExtra / nVarCount : 0;
- }
- else // no var width fields at all
- {
- nVarWidth = 0;
- }
+ int widthExtra = widthTotal - nTotalWidth;
// do fill the array
- for ( i = 0; i < m_nFields; i++ )
+ for ( i = 0; i < m_panes.GetCount(); i++ )
{
- if ( m_statusWidths[i] >= 0 )
- {
- widths.Add(m_statusWidths[i]);
- }
+ if ( m_panes[i].GetWidth() >= 0 )
+ widths.Add(m_panes[i].GetWidth());
else
{
- widths.Add(-m_statusWidths[i]*nVarWidth);
+ int nVarWidth = widthExtra > 0 ? (widthExtra * (-m_panes[i].GetWidth())) / nVarCount : 0;
+ nVarCount += m_panes[i].GetWidth();
+ widthExtra -= nVarWidth;
+ widths.Add(nVarWidth);
}
}
}
return widths;
}
-#endif // wxUSE_STATUSBAR
+// ----------------------------------------------------------------------------
+// status text stacks
+// ----------------------------------------------------------------------------
+void wxStatusBarBase::PushStatusText(const wxString& text, int number)
+{
+ // save the new text (in non-ellipsized form) in the stack
+ m_panes[number].m_arrStack.push_back(text);
+
+ SetStatusText(text, number);
+ // update current status text (which will possibly be ellipsized)
+ // also in the native control
+
+ // SetStatusText() typically has an optimization built-in to avoid flickering
+ // which won't refresh the status bar pane if the current top of the stack
+ // is identic to the text passed to that function.
+ // Since this optimization however cannot detect push/pop operations on the stack
+ // we need to explicitely refresh the status bar pane ourselves:
+ wxRect rect;
+ GetFieldRect(number, rect);
+ Refresh(true, &rect);
+ Update();
+}
+
+void wxStatusBarBase::PopStatusText(int number)
+{
+ wxASSERT_MSG(m_panes[number].m_arrStack.GetCount() > 1,
+ "can't pop any further string");
+
+ // the top of the stack is the status text currently shown in the native control;
+ // remove it
+ m_panes[number].m_arrStack.pop_back();
+
+ // restore the previous status text in the native control
+ const wxString& text = m_panes[number].m_arrStack.back();
+ SetStatusText(text, number);
+
+ // see comment in wxStatusBarBase::PushStatusText about why we need to explicitely
+ // refresh the status bar pane
+ wxRect rect;
+ GetFieldRect(number, rect);
+ Refresh(true, &rect);
+ Update();
+}
+
+#endif // wxUSE_STATUSBAR
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