#include "wx/containr.h"
#endif
-//--------------------------------------------------------------------------
+#if wxUSE_STATTEXT
+
+// ----------------------------------------------------------------------------
+// wxTextWrapper
+// ----------------------------------------------------------------------------
+
+// this class is used to wrap the text on word boundary: wrapping is done by
+// calling OnStartLine() and OnOutputLine() functions
+class wxTextWrapper
+{
+public:
+ wxTextWrapper() { m_eol = false; }
+
+ // win is used for getting the font, text is the text to wrap, width is the
+ // max line width or -1 to disable wrapping
+ void Wrap(wxWindow *win, const wxString& text, int widthMax);
+
+protected:
+ // line may be empty
+ virtual void OnOutputLine(const wxString& line) = 0;
+
+ // called at the start of every new line (except the very first one)
+ virtual void OnNewLine() { }
+
+private:
+ // call OnOutputLine() and set m_eol to true
+ void DoOutputLine(const wxString& line)
+ {
+ OnOutputLine(line);
+
+ m_eol = true;
+ }
+
+ // this function is a destructive inspector: when it returns true it also
+ // resets the flag to false so calling it again woulnd't return true any
+ // more
+ bool IsStartOfNewLine()
+ {
+ if ( !m_eol )
+ return false;
+
+ m_eol = false;
+
+ return true;
+ }
+
+
+ bool m_eol;
+};
+
+#endif // wxUSE_STATTEXT
+
+// ----------------------------------------------------------------------------
// wxDialogBase
-//--------------------------------------------------------------------------
+// ----------------------------------------------------------------------------
-// FIXME - temporary hack in absence of wxtopLevelWindow, should be always used
+// FIXME - temporary hack in absence of wxTopLevelWindow, should be always used
#ifdef wxTopLevelWindowNative
BEGIN_EVENT_TABLE(wxDialogBase, wxTopLevelWindow)
WX_EVENT_TABLE_CONTROL_CONTAINER(wxDialogBase)
#endif
}
-#if wxUSE_STATTEXT // && wxUSE_TEXTCTRL
+#if wxUSE_STATTEXT
-wxSizer *wxDialogBase::CreateTextSizer( const wxString& message )
+void wxTextWrapper::Wrap(wxWindow *win, const wxString& text, int widthMax)
{
- bool is_pda = (wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA);
+ const wxChar *lastSpace = NULL;
+ wxString line;
+
+ const wxChar *lineStart = text.c_str();
+ for ( const wxChar *p = lineStart; ; p++ )
+ {
+ if ( IsStartOfNewLine() )
+ {
+ OnNewLine();
+
+ lastSpace = NULL;
+ line.clear();
+ lineStart = p;
+ }
+
+ if ( *p == _T('\n') || *p == _T('\0') )
+ {
+ DoOutputLine(line);
+
+ if ( *p == _T('\0') )
+ break;
+ }
+ else // not EOL
+ {
+ if ( *p == _T(' ') )
+ lastSpace = p;
+
+ line += *p;
- wxString text = message;
+ if ( widthMax >= 0 && lastSpace )
+ {
+ int width;
+ win->GetTextExtent(line, &width, NULL);
+ if ( width > widthMax )
+ {
+ // remove the last word from this line
+ line.erase(lastSpace - lineStart, p + 1 - lineStart);
+ DoOutputLine(line);
+
+ // go back to the last word of this line which we didn't
+ // output yet
+ p = lastSpace;
+ }
+ }
+ //else: no wrapping at all or impossible to wrap
+ }
+ }
+}
+
+wxSizer *wxDialogBase::CreateTextSizer(const wxString& message)
+{
// I admit that this is complete bogus, but it makes
// message boxes work for pda screens temporarily..
- int max_width = -1;
+ int widthMax = -1;
+ const bool is_pda = wxSystemSettings::GetScreenType() <= wxSYS_SCREEN_PDA;
if (is_pda)
{
- max_width = wxSystemSettings::GetMetric( wxSYS_SCREEN_X ) - 25;
- text += wxT('\n');
+ widthMax = wxSystemSettings::GetMetric( wxSYS_SCREEN_X ) - 25;
}
+ // '&' is used as accel mnemonic prefix in the wxWidgets controls but in
+ // the static messages created by CreateTextSizer() (used by wxMessageBox,
+ // for example), we don't want this special meaning, so we need to quote it
+ wxString text(message);
+ text.Replace(_T("&"), _T("&&"));
- wxBoxSizer *box = new wxBoxSizer( wxVERTICAL );
-
- // get line height for empty lines
- int y = 0;
- wxFont font( GetFont() );
- if (!font.Ok())
- font = *wxSWISS_FONT;
- GetTextExtent( wxT("H"), (int*)NULL, &y, (int*)NULL, (int*)NULL, &font);
- size_t last_space = 0;
- wxString line;
- for ( size_t pos = 0; pos < text.length(); pos++ )
+ class TextSizerWrapper : public wxTextWrapper
{
- switch ( text[pos] )
+ public:
+ TextSizerWrapper(wxWindow *win)
{
- case wxT('\n'):
- if (!line.empty())
- {
- wxStaticText *s = new wxStaticText( this, wxID_ANY, line );
- box->Add( s );
- line = wxEmptyString;
- }
- else
- {
- box->Add( 5, y );
- }
- break;
+ m_win = win;
+ m_hLine = 0;
+ }
+
+ wxSizer *CreateSizer(const wxString& text, int widthMax)
+ {
+ m_sizer = new wxBoxSizer(wxVERTICAL);
+ Wrap(m_win, text, widthMax);
+ return m_sizer;
+ }
- case wxT('&'):
- // this is used as accel mnemonic prefix in the wxWidgets
- // controls but in the static messages created by
- // CreateTextSizer() (used by wxMessageBox, for example), we
- // don't want this special meaning, so we need to quote it
- line += wxT('&');
+ protected:
+ virtual void OnOutputLine(const wxString& line)
+ {
+ if ( !line.empty() )
+ {
+ m_sizer->Add(new wxStaticText(m_win, wxID_ANY, line));
+ }
+ else // empty line, no need to create a control for it
+ {
+ if ( !m_hLine )
+ m_hLine = m_win->GetCharHeight();
+
+ m_sizer->Add(5, m_hLine);
+ }
+ }
- // fall through to add it normally too
+ private:
+ wxWindow *m_win;
+ wxSizer *m_sizer;
+ int m_hLine;
+ };
- default:
- if (text[pos] == wxT(' '))
- last_space = pos;
+ TextSizerWrapper wrapper(this);
- line += message[pos];
+ return wrapper.CreateSizer(text, widthMax);
+}
- if (is_pda)
- {
- int width = 0;
- GetTextExtent( line, &width, (int*)NULL, (int*)NULL, (int*)NULL, &font );
-
- if (width > max_width)
- {
- // exception if there was no previous space
- if (last_space == 0)
- last_space = pos;
-
- int diff = pos-last_space;
- int len = line.Len();
- line.Remove( len-diff, diff );
-
- wxStaticText *s = new wxStaticText( this, wxID_ANY, line );
- box->Add( s );
-
- pos = last_space;
- last_space = 0;
- line = wxEmptyString;
- }
- }
+void wxStaticTextBase::Wrap(int width)
+{
+ class LabelWrapper : public wxTextWrapper
+ {
+ public:
+ void WrapLabel(wxStaticTextBase *text, int widthMax)
+ {
+ m_text.clear();
+ Wrap(text, text->GetLabel(), widthMax);
+ text->SetLabel(m_text);
}
- }
- // remaining text behind last '\n'
- if (!line.empty())
- {
- wxStaticText *s2 = new wxStaticText( this, wxID_ANY, line );
- box->Add( s2 );
- }
+ protected:
+ virtual void OnOutputLine(const wxString& line)
+ {
+ m_text += line;
+ }
+
+ virtual void OnNewLine()
+ {
+ m_text += _T('\n');
+ }
+
+ private:
+ wxString m_text;
+ };
- return box;
+ LabelWrapper wrapper;
+ wrapper.WrapLabel(this, width);
}
-#endif // wxUSE_STATTEXT // && wxUSE_TEXTCTRL
+#endif // wxUSE_STATTEXT
#if wxUSE_BUTTON
projects / wxWidgets.git / commitdiff
