src/mac/carbon/stattext.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        stattext.cpp
   3 // Purpose:     wxStaticText
   4 // Author:      Stefan Csomor
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Stefan Csomor
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "stattext.h"
  14 #endif
  15
  16 #include "wx/app.h"
  17 #include "wx/stattext.h"
  18 #include "wx/notebook.h"
  19 #include "wx/tabctrl.h"
  20 #include "wx/dc.h"
  21 #include "wx/dcclient.h"
  22 #include "wx/utils.h"
  23 #include "wx/settings.h"
  24
  25 #include <stdio.h>
  26
  27 #if !USE_SHARED_LIBRARY
  28 IMPLEMENT_DYNAMIC_CLASS(wxStaticText, wxControl)
  29 #endif
  30
  31 #include "wx/mac/uma.h"
  32
  33 BEGIN_EVENT_TABLE(wxStaticText, wxStaticTextBase)
  34     EVT_PAINT(wxStaticText::OnPaint)
  35 END_EVENT_TABLE()
  36
  37 bool wxStaticText::Create(wxWindow *parent, wxWindowID id,
  38            const wxString& label,
  39            const wxPoint& pos,
  40            const wxSize& size,
  41            long style,
  42            const wxString& name)
  43 {
  44     m_label = wxStripMenuCodes(label) ;
  45
  46     if ( !wxControl::Create( parent, id, pos, size, style,
  47                              wxDefaultValidator , name ) )
  48     {
  49         return false;
  50     }
  51
  52     SetBestSize( size ) ;
  53
  54     return true;
  55 }
  56
  57 const wxString punct = wxT(" ,.-;:!?");
  58
  59 void wxStaticText::DrawParagraph(wxDC &dc, wxString paragraph, int &y)
  60 {
  61     long width, height ;
  62
  63     if (paragraph.Length() == 0)
  64     {
  65         // empty line
  66         dc.GetTextExtent( wxT("H"), &width, &height );
  67         y += height;
  68
  69         return;
  70     }
  71
  72     int x = 0 ;
  73
  74     bool linedrawn = true;
  75     while( paragraph.Length() > 0 )
  76     {
  77         dc.GetTextExtent( paragraph , &width , &height ) ;
  78
  79         if ( width > m_width )
  80         {
  81             for ( size_t p = paragraph.Length() - 1 ; p > 0 ; --p )
  82             {
  83                 if ((punct.Find(paragraph[p]) != wxNOT_FOUND) || !linedrawn)
  84                 {
  85                     int blank = (paragraph[p] == ' ') ? 0 : 1;
  86
  87                     dc.GetTextExtent( paragraph.Left(p + blank) , &width , &height ) ;
  88
  89                     if ( width <= m_width )
  90                     {
  91                         int pos = x ;
  92                         if ( HasFlag( wxALIGN_CENTER ) )
  93                         {
  94                             pos += ( m_width - width ) / 2 ;
  95                         }
  96                         else if ( HasFlag( wxALIGN_RIGHT ) )
  97                         {
  98                             pos += ( m_width - width ) ;
  99                         }
 100
 101                         dc.DrawText( paragraph.Left(p + blank), pos , y) ;
 102                         y += height ;
 103                         paragraph = paragraph.Mid(p+1) ;
 104                         linedrawn = true;
 105                         break ;
 106                     }
 107                 }
 108             }
 109
 110             linedrawn = false;
 111         }
 112         else
 113         {
 114             int pos = x ;
 115             if ( HasFlag( wxALIGN_CENTER ) )
 116             {
 117                 pos += ( m_width - width ) / 2 ;
 118             }
 119             else if ( HasFlag( wxALIGN_RIGHT ) )
 120             {
 121                 pos += ( m_width - width ) ;
 122             }
 123
 124             dc.DrawText( paragraph, pos , y) ;
 125             paragraph=wxEmptyString;
 126             y += height ;
 127         }
 128     }
 129 }
 130
 131 void wxStaticText::OnDraw( wxDC &dc )
 132 {
 133     if (m_width <= 0 || m_height <= 0)
 134         return;
 135     /*
 136         dc.Clear() ;
 137         wxRect rect(0,0,m_width,m_height) ;
 138         dc.SetFont(*wxSMALL_FONT) ;
 139
 140           dc.DrawRectangle(rect) ;
 141     */
 142     if ( !IsWindowHilited( (WindowRef) MacGetRootWindow() ) &&
 143         ( GetBackgroundColour() == wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE )
 144         || GetBackgroundColour() == wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE) ) )
 145     {
 146         dc.SetTextForeground( wxColour( 0x80 , 0x80 , 0x80 ) ) ;
 147     }
 148     else
 149     {
 150         dc.SetTextForeground( GetForegroundColour() ) ;
 151     }
 152
 153     wxString paragraph;
 154     size_t i = 0 ;
 155     wxString text = m_label;
 156     int y = 0 ;
 157     while (i < text.Length())
 158     {
 159
 160         if (text[i] == 13 || text[i] == 10)
 161         {
 162             DrawParagraph(dc, paragraph,y);
 163             paragraph = wxEmptyString ;
 164         }
 165         else
 166         {
 167             paragraph += text[i];
 168         }
 169         ++i;
 170     }
 171     if (paragraph.Length() > 0)
 172         DrawParagraph(dc, paragraph,y);
 173 }
 174
 175 void wxStaticText::OnPaint( wxPaintEvent & WXUNUSED(event) )
 176 {
 177     wxPaintDC dc(this);
 178     OnDraw( dc ) ;
 179 }
 180
 181 wxSize wxStaticText::DoGetBestSize() const
 182 {
 183     int widthTextMax = 0, widthLine,
 184         heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
 185
 186     wxString curLine;
 187     for ( const wxChar *pc = m_label; ; pc++ )
 188     {
 189         if ( *pc == wxT('\n') || *pc == wxT('\0') )
 190         {
 191             if ( !curLine )
 192             {
 193                 // we can't use GetTextExtent - it will return 0 for both width
 194                 // and height and an empty line should count in height
 195                 // calculation
 196                 if ( !heightLineDefault )
 197                     heightLineDefault = heightLine;
 198                 if ( !heightLineDefault )
 199                     GetTextExtent(_T("W"), NULL, &heightLineDefault);
 200
 201                 heightTextTotal += heightLineDefault;
 202
 203                 heightTextTotal++;  // FIXME: why is this necessary?
 204             }
 205             else
 206             {
 207                 GetTextExtent(curLine, &widthLine, &heightLine);
 208                 if ( widthLine > widthTextMax )
 209                     widthTextMax = widthLine;
 210                 heightTextTotal += heightLine;
 211
 212                 heightTextTotal++;  // FIXME: why is this necessary?
 213             }
 214
 215             if ( *pc == wxT('\n') ) {
 216                curLine.Empty();
 217             }
 218             else {
 219                // the end of string
 220                break;
 221             }
 222         }
 223         else {
 224             curLine += *pc;
 225         }
 226     }
 227
 228     return wxSize(widthTextMax, heightTextTotal);
 229 }
 230
 231 void wxStaticText::SetLabel(const wxString& st )
 232 {
 233     SetTitle( st ) ;
 234     m_label = st ;
 235     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 236         SetSize( GetBestSize() ) ;
 237
 238     Refresh() ;
 239     Update() ;
 240 }
 241
 242 bool wxStaticText::SetFont(const wxFont& font)
 243 {
 244     bool ret = wxControl::SetFont(font);
 245
 246     // adjust the size of the window to fit to the label unless autoresizing is
 247     // disabled
 248     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 249         SetSize( GetBestSize() );
 250
 251     return ret;
 252 }