src/mac/carbon/stattext.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        stattext.cpp
   3 // Purpose:     wxStaticText
   4 // Author:      AUTHOR
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) AUTHOR
   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
  24 #include <stdio.h>
  25
  26 #if !USE_SHARED_LIBRARY
  27 IMPLEMENT_DYNAMIC_CLASS(wxStaticText, wxControl)
  28 #endif
  29
  30 #include "wx/mac/uma.h"
  31
  32 BEGIN_EVENT_TABLE(wxStaticText, wxStaticTextBase)
  33     EVT_PAINT(wxStaticText::OnPaint)
  34 END_EVENT_TABLE()
  35
  36 bool wxStaticText::Create(wxWindow *parent, wxWindowID id,
  37            const wxString& label,
  38            const wxPoint& pos,
  39            const wxSize& size,
  40            long style,
  41            const wxString& name)
  42 {
  43     SetName(name);
  44     m_backgroundColour = parent->GetBackgroundColour() ;
  45     m_foregroundColour = parent->GetForegroundColour() ;
  46
  47     if ( id == -1 )
  48         m_windowId = (int)NewControlId();
  49     else
  50         m_windowId = id;
  51
  52     m_windowStyle = style;
  53     m_label = label ;
  54
  55     bool ret = wxControl::Create( parent, id, pos, size, style , wxDefaultValidator , name );
  56     SetBestSize( size ) ;
  57
  58     return ret;
  59 }
  60
  61 const wxString punct = " ,.-;:!?";
  62
  63 void wxStaticText::DrawParagraph(wxDC &dc, wxString paragraph)
  64 {
  65   int x = 0 ;
  66   int y = 0 ;
  67   int i = 0 ;
  68   long width, height ;
  69   bool linedrawn = true;
  70   while( paragraph.Length() > 0 )
  71   {
  72         dc.GetTextExtent( paragraph , &width , &height ) ;
  73
  74         if ( width > m_width )
  75         {
  76             for ( int p = paragraph.Length() -1 ; p > 0 ; --p )
  77             {
  78               if ((punct.Find(paragraph[p]) != wxNOT_FOUND) || !linedrawn)
  79                 {
  80                   int blank = (paragraph[p] == ' ') ? 0 : 1;
  81
  82                     dc.GetTextExtent( paragraph.Left(p + blank) , &width , &height ) ;
  83
  84                     if ( width <= m_width )
  85                     {
  86                         int pos = x ;
  87                         if ( HasFlag( wxALIGN_CENTER ) )
  88                         {
  89                             pos += ( m_width - width ) / 2 ;
  90                       }
  91                         else if ( HasFlag( wxALIGN_RIGHT ) )
  92                         {
  93                             pos += ( m_width - width ) ;
  94                       }
  95
  96                     dc.DrawText( paragraph.Left(p + blank), pos , y) ;
  97                     y += height ;
  98                         paragraph = paragraph.Mid(p+1) ;
  99                         linedrawn = true;
 100                         break ;
 101                     }
 102                 }
 103             }
 104
 105             linedrawn = false;
 106         }
 107         else
 108         {
 109             int pos = x ;
 110             if ( HasFlag( wxALIGN_CENTER ) )
 111             {
 112                 pos += ( m_width - width ) / 2 ;
 113           }
 114             else if ( HasFlag( wxALIGN_RIGHT ) )
 115             {
 116                 pos += ( m_width - width ) ;
 117           }
 118
 119         dc.DrawText( paragraph, pos , y) ;
 120         paragraph="";
 121         y += height ;
 122         }
 123     }
 124 }
 125
 126 void wxStaticText::OnDraw( wxDC &dc )
 127 {
 128     if (m_width <= 0 || m_height <= 0)
 129         return;
 130
 131   wxString paragraph;
 132   int i = 0 ;
 133   wxString text = m_label;
 134         while (i < text.Length())
 135         {
 136           paragraph += text[i];
 137
 138         if (text[i] == 13 || text[i] == 10)
 139             DrawParagraph(dc, paragraph);
 140
 141     ++i;
 142   }
 143   if (paragraph.Length() > 0)
 144           DrawParagraph(dc, paragraph);
 145 }
 146
 147 void wxStaticText::OnPaint( wxPaintEvent &event )
 148 {
 149     wxPaintDC dc(this);
 150     OnDraw( dc ) ;
 151 }
 152
 153 wxSize wxStaticText::DoGetBestSize() const
 154 {
 155     int x,y ;
 156     int widthTextMax = 0, widthLine,
 157         heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
 158
 159     wxString curLine;
 160     for ( const wxChar *pc = m_label; ; pc++ )
 161     {
 162         if ( *pc == wxT('\n') || *pc == wxT('\0') )
 163         {
 164             if ( !curLine )
 165             {
 166                 // we can't use GetTextExtent - it will return 0 for both width
 167                 // and height and an empty line should count in height
 168                 // calculation
 169                 if ( !heightLineDefault )
 170                     heightLineDefault = heightLine;
 171                 if ( !heightLineDefault )
 172                     GetTextExtent(_T("W"), NULL, &heightLineDefault);
 173
 174                 heightTextTotal += heightLineDefault;
 175
 176                 heightTextTotal++;  // FIXME: why is this necessary?
 177             }
 178             else
 179             {
 180                 GetTextExtent(curLine, &widthLine, &heightLine);
 181                 if ( widthLine > widthTextMax )
 182                     widthTextMax = widthLine;
 183                 heightTextTotal += heightLine;
 184
 185                 heightTextTotal++;  // FIXME: why is this necessary?
 186             }
 187
 188             if ( *pc == wxT('\n') ) {
 189                curLine.Empty();
 190             }
 191             else {
 192                // the end of string
 193                break;
 194             }
 195         }
 196         else {
 197             curLine += *pc;
 198         }
 199     }
 200
 201     return wxSize(widthTextMax, heightTextTotal);
 202 }
 203
 204 void wxStaticText::SetLabel(const wxString& st )
 205 {
 206         SetTitle( st ) ;
 207         m_label = st ;
 208         if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 209                 SetSize( GetBestSize() ) ;
 210
 211         Refresh() ;
 212         Update() ;
 213 }