// Author: Vadim Zeitlin
// Modified by: Francesco Montorsi
// Created: 14.10.01
-// RCS-ID: $Id$
// Copyright: (c) 2001 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
-// License: wxWindows licence
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
// ============================================================================
const char wxStatusBarNameStr[] = "statusBar";
+// ============================================================================
+// wxStatusBarPane implementation
+// ============================================================================
+
+bool wxStatusBarPane::SetText(const wxString& text)
+{
+ if ( text == m_text )
+ return false;
+
+ /*
+ If we have a message to restore on the stack, we update it to
+ correspond to the current one so that a sequence of calls such as
+
+ 1. SetStatusText("foo")
+ 2. PushStatusText("bar")
+ 3. SetStatusText("new foo")
+ 4. PopStatusText()
+
+ doesn't overwrite the "new foo" which should be shown at the end with
+ the old value "foo". This would be unexpected and hard to avoid,
+ especially when PushStatusText() is used internally by wxWidgets
+ without knowledge of the user program, as it is for showing the menu
+ and toolbar help strings.
+
+ By updating the top of the stack we ensure that the next call to
+ PopStatusText() basically becomes a NOP without breaking the balance
+ between the calls to push and pop as we would have done if we really
+ called PopStatusText() here.
+ */
+ if ( !m_arrStack.empty() )
+ {
+ m_arrStack.back() = text;
+ }
+
+ m_text = text;
+
+ return true;
+}
+
+bool wxStatusBarPane::PushText(const wxString& text)
+{
+ // save the currently shown text
+ m_arrStack.push_back(m_text);
+
+ // and update the new one if necessary
+ if ( text == m_text )
+ return false;
+
+ m_text = text;
+
+ return true;
+}
+
+bool wxStatusBarPane::PopText()
+{
+ wxCHECK_MSG( !m_arrStack.empty(), false, "no status message to pop" );
+
+ const wxString text = m_arrStack.back();
+
+ m_arrStack.pop_back();
+
+ if ( text == m_text )
+ return false;
+
+ m_text = text;
+
+ return true;
+}
// ============================================================================
// wxStatusBarBase implementation
else
{
for ( size_t i = 0; i < m_panes.GetCount(); i++ )
- m_panes[i].m_nWidth = widths[i];
+ m_panes[i].SetWidth(widths[i]);
m_bSameWidthForAllPanes = false;
}
wxASSERT_MSG( (size_t)n == m_panes.GetCount(), wxT("field number mismatch") );
for ( size_t i = 0; i < m_panes.GetCount(); i++ )
- m_panes[i].m_nStyle = styles[i];
+ m_panes[i].SetStyle(styles[i]);
// update the display after the widths changed
Refresh();
}
// ----------------------------------------------------------------------------
-// status text stacks
+// setting/getting status text
+// ----------------------------------------------------------------------------
+
+void wxStatusBarBase::SetStatusText(const wxString& text, int number)
+{
+ wxCHECK_RET( (unsigned)number < m_panes.size(),
+ "invalid status bar field index" );
+
+ if ( m_panes[number].SetText(text) )
+ DoUpdateStatusText(number);
+}
+
+wxString wxStatusBarBase::GetStatusText(int number) const
+{
+ wxCHECK_MSG( (unsigned)number < m_panes.size(), wxString(),
+ "invalid status bar field index" );
+
+ return m_panes[number].GetText();
+}
+
+void wxStatusBarBase::SetEllipsizedFlag(int number, bool isEllipsized)
+{
+ wxCHECK_RET( (unsigned)number < m_panes.size(),
+ "invalid status bar field index" );
+
+ m_panes[number].SetIsEllipsized(isEllipsized);
+}
+
+// ----------------------------------------------------------------------------
+// pushing/popping status text
// ----------------------------------------------------------------------------
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();
+ wxCHECK_RET( (unsigned)number < m_panes.size(),
+ "invalid status bar field index" );
+
+ if ( m_panes[number].PushText(text) )
+ DoUpdateStatusText(number);
}
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();
+ wxCHECK_RET( (unsigned)number < m_panes.size(),
+ "invalid status bar field index" );
+
+ if ( m_panes[number].PopText() )
+ DoUpdateStatusText(number);
}
#endif // wxUSE_STATUSBAR
projects / wxWidgets.git / blobdiff