X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b2d76621c2d4a3116a9ad012f7cd2b6e79d12e00..87f0b1323b7ac77f02133b836c8dfee63b0fd387:/src/common/statbar.cpp diff --git a/src/common/statbar.cpp b/src/common/statbar.cpp index c8e47cec57..d196f15933 100644 --- a/src/common/statbar.cpp +++ b/src/common/statbar.cpp @@ -6,7 +6,7 @@ // Created: 14.10.01 // RCS-ID: $Id$ // Copyright: (c) 2001 Vadim Zeitlin -// License: wxWindows licence +// Licence: wxWindows licence /////////////////////////////////////////////////////////////////////////////// // ============================================================================ @@ -34,6 +34,74 @@ 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 @@ -69,7 +137,7 @@ wxStatusBarBase::~wxStatusBarBase() void wxStatusBarBase::SetFieldsCount(int number, const int *widths) { - wxCHECK_RET( number > 0, _T("invalid field number in SetFieldsCount") ); + wxCHECK_RET( number > 0, wxT("invalid field number in SetFieldsCount") ); if ( (size_t)number > m_panes.GetCount() ) { @@ -93,7 +161,7 @@ void wxStatusBarBase::SetFieldsCount(int number, const int *widths) void wxStatusBarBase::SetStatusWidths(int WXUNUSED_UNLESS_DEBUG(n), const int widths[]) { - wxASSERT_MSG( (size_t)n == m_panes.GetCount(), _T("field number mismatch") ); + wxASSERT_MSG( (size_t)n == m_panes.GetCount(), wxT("field number mismatch") ); if (widths == NULL) { @@ -104,7 +172,7 @@ void wxStatusBarBase::SetStatusWidths(int WXUNUSED_UNLESS_DEBUG(n), 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; } @@ -116,12 +184,12 @@ void wxStatusBarBase::SetStatusWidths(int WXUNUSED_UNLESS_DEBUG(n), void wxStatusBarBase::SetStatusStyles(int WXUNUSED_UNLESS_DEBUG(n), const int styles[]) { - wxCHECK_RET( styles, _T("NULL pointer in SetStatusStyles") ); + wxCHECK_RET( styles, wxT("NULL pointer in SetStatusStyles") ); - wxASSERT_MSG( (size_t)n == m_panes.GetCount(), _T("field number mismatch") ); + 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(); @@ -186,48 +254,54 @@ wxArrayInt wxStatusBarBase::CalculateAbsWidths(wxCoord widthTotal) const } // ---------------------------------------------------------------------------- -// 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