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 #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     SetName(name);
  45     m_backgroundColour = parent->GetBackgroundColour() ;
  46     m_foregroundColour = parent->GetForegroundColour() ;
  47
  48     if ( id == -1 )
  49         m_windowId = (int)NewControlId();
  50     else
  51         m_windowId = id;
  52
  53     m_windowStyle = style;
  54     m_label = label ;
  55
  56     bool ret = wxControl::Create( parent, id, pos, size, style , wxDefaultValidator , name );
  57     SetBestSize( size ) ;
  58
  59     return ret;
  60 }
  61
  62 const wxString punct = " ,.-;:!?";
  63
  64 void wxStaticText::DrawParagraph(wxDC &dc, wxString paragraph)
  65 {
  66   int x = 0 ;
  67   int y = 0 ;
  68   int i = 0 ;
  69   long width, height ;
  70   bool linedrawn = true;
  71   while( paragraph.Length() > 0 )
  72   {
  73         dc.GetTextExtent( paragraph , &width , &height ) ;
  74
  75         if ( width > m_width )
  76         {
  77             for ( int p = paragraph.Length() -1 ; p > 0 ; --p )
  78             {
  79               if ((punct.Find(paragraph[p]) != wxNOT_FOUND) || !linedrawn)
  80                 {
  81                   int blank = (paragraph[p] == ' ') ? 0 : 1;
  82
  83                     dc.GetTextExtent( paragraph.Left(p + blank) , &width , &height ) ;
  84
  85                     if ( width <= m_width )
  86                     {
  87                         int pos = x ;
  88                         if ( HasFlag( wxALIGN_CENTER ) )
  89                         {
  90                             pos += ( m_width - width ) / 2 ;
  91                       }
  92                         else if ( HasFlag( wxALIGN_RIGHT ) )
  93                         {
  94                             pos += ( m_width - width ) ;
  95                       }
  96
  97                     dc.DrawText( paragraph.Left(p + blank), pos , y) ;
  98                     y += height ;
  99                         paragraph = paragraph.Mid(p+1) ;
 100                         linedrawn = true;
 101                         break ;
 102                     }
 103                 }
 104             }
 105
 106             linedrawn = false;
 107         }
 108         else
 109         {
 110             int pos = x ;
 111             if ( HasFlag( wxALIGN_CENTER ) )
 112             {
 113                 pos += ( m_width - width ) / 2 ;
 114           }
 115             else if ( HasFlag( wxALIGN_RIGHT ) )
 116             {
 117                 pos += ( m_width - width ) ;
 118           }
 119
 120         dc.DrawText( paragraph, pos , y) ;
 121         paragraph="";
 122         y += height ;
 123         }
 124     }
 125 }
 126
 127 void wxStaticText::OnDraw( wxDC &dc )
 128 {
 129     if (m_width <= 0 || m_height <= 0)
 130         return;
 131
 132   if ( !IsWindowHilited( MacGetRootWindow() ) &&
 133     ( GetBackgroundColour() == wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE )
 134       || GetBackgroundColour() == wxSystemSettings::GetSystemColour(wxSYS_COLOUR_APPWORKSPACE) ) )
 135   {
 136     dc.SetTextForeground( wxColour( 0x80 , 0x80 , 0x80 ) ) ;
 137   }
 138   else
 139   {
 140     dc.SetTextForeground( GetForegroundColour() ) ;
 141   }
 142
 143   wxString paragraph;
 144   int i = 0 ;
 145   wxString text = m_label;
 146         while (i < text.Length())
 147         {
 148           paragraph += text[i];
 149
 150         if (text[i] == 13 || text[i] == 10)
 151             DrawParagraph(dc, paragraph);
 152
 153     ++i;
 154   }
 155   if (paragraph.Length() > 0)
 156           DrawParagraph(dc, paragraph);
 157 }
 158
 159 void wxStaticText::OnPaint( wxPaintEvent &event )
 160 {
 161     wxPaintDC dc(this);
 162     OnDraw( dc ) ;
 163 }
 164
 165 wxSize wxStaticText::DoGetBestSize() const
 166 {
 167     int x,y ;
 168     int widthTextMax = 0, widthLine,
 169         heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
 170
 171     wxString curLine;
 172     for ( const wxChar *pc = m_label; ; pc++ )
 173     {
 174         if ( *pc == wxT('\n') || *pc == wxT('\0') )
 175         {
 176             if ( !curLine )
 177             {
 178                 // we can't use GetTextExtent - it will return 0 for both width
 179                 // and height and an empty line should count in height
 180                 // calculation
 181                 if ( !heightLineDefault )
 182                     heightLineDefault = heightLine;
 183                 if ( !heightLineDefault )
 184                     GetTextExtent(_T("W"), NULL, &heightLineDefault);
 185
 186                 heightTextTotal += heightLineDefault;
 187
 188                 heightTextTotal++;  // FIXME: why is this necessary?
 189             }
 190             else
 191             {
 192                 GetTextExtent(curLine, &widthLine, &heightLine);
 193                 if ( widthLine > widthTextMax )
 194                     widthTextMax = widthLine;
 195                 heightTextTotal += heightLine;
 196
 197                 heightTextTotal++;  // FIXME: why is this necessary?
 198             }
 199
 200             if ( *pc == wxT('\n') ) {
 201                curLine.Empty();
 202             }
 203             else {
 204                // the end of string
 205                break;
 206             }
 207         }
 208         else {
 209             curLine += *pc;
 210         }
 211     }
 212
 213     return wxSize(widthTextMax, heightTextTotal);
 214 }
 215
 216 void wxStaticText::SetLabel(const wxString& st )
 217 {
 218         SetTitle( st ) ;
 219         m_label = st ;
 220         if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 221                 SetSize( GetBestSize() ) ;
 222
 223         Refresh() ;
 224         Update() ;
 225 }