src/mac/classic/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 #include "wx/app.h"
  13 #include "wx/stattext.h"
  14 #include "wx/notebook.h"
  15 #include "wx/tabctrl.h"
  16 #include "wx/dc.h"
  17 #include "wx/dcclient.h"
  18 #include "wx/utils.h"
  19 #include "wx/settings.h"
  20
  21 #include <stdio.h>
  22
  23 IMPLEMENT_DYNAMIC_CLASS(wxStaticText, wxControl)
  24
  25 #include "wx/mac/uma.h"
  26
  27 BEGIN_EVENT_TABLE(wxStaticText, wxStaticTextBase)
  28     EVT_PAINT(wxStaticText::OnPaint)
  29 END_EVENT_TABLE()
  30
  31 bool wxStaticText::Create(wxWindow *parent, wxWindowID id,
  32            const wxString& label,
  33            const wxPoint& pos,
  34            const wxSize& size,
  35            long style,
  36            const wxString& name)
  37 {
  38     m_label = wxStripMenuCodes(label) ;
  39
  40     if ( !wxControl::Create( parent, id, pos, size, style,
  41                              wxDefaultValidator , name ) )
  42     {
  43         return false;
  44     }
  45
  46     SetBestSize( size ) ;
  47
  48     return true;
  49 }
  50
  51 const wxString punct = wxT(" ,.-;:!?");
  52
  53 void wxStaticText::DrawParagraph(wxDC &dc, wxString paragraph, int &y)
  54 {
  55     long width, height ;
  56
  57     if (paragraph.Length() == 0)
  58     {
  59         // empty line
  60         dc.GetTextExtent( wxT("H"), &width, &height );
  61         y += height;
  62
  63         return;
  64     }
  65
  66     int x = 0 ;
  67
  68     bool linedrawn = true;
  69     while( paragraph.Length() > 0 )
  70     {
  71         dc.GetTextExtent( paragraph , &width , &height ) ;
  72
  73         if ( width > m_width )
  74         {
  75             for ( size_t p = paragraph.Length() - 1 ; p > 0 ; --p )
  76             {
  77                 if ((punct.Find(paragraph[p]) != wxNOT_FOUND) || !linedrawn)
  78                 {
  79                     int blank = (paragraph[p] == ' ') ? 0 : 1;
  80
  81                     dc.GetTextExtent( paragraph.Left(p + blank) , &width , &height ) ;
  82
  83                     if ( width <= m_width )
  84                     {
  85                         int pos = x ;
  86                         if ( HasFlag( wxALIGN_CENTER ) )
  87                         {
  88                             pos += ( m_width - width ) / 2 ;
  89                         }
  90                         else if ( HasFlag( wxALIGN_RIGHT ) )
  91                         {
  92                             pos += ( m_width - width ) ;
  93                         }
  94
  95                         dc.DrawText( paragraph.Left(p + blank), pos , y) ;
  96                         y += height ;
  97                         paragraph = paragraph.Mid(p+1) ;
  98                         linedrawn = true;
  99                         break ;
 100                     }
 101                 }
 102             }
 103
 104             linedrawn = false;
 105         }
 106         else
 107         {
 108             int pos = x ;
 109             if ( HasFlag( wxALIGN_CENTER ) )
 110             {
 111                 pos += ( m_width - width ) / 2 ;
 112             }
 113             else if ( HasFlag( wxALIGN_RIGHT ) )
 114             {
 115                 pos += ( m_width - width ) ;
 116             }
 117
 118             dc.DrawText( paragraph, pos , y) ;
 119             paragraph=wxEmptyString;
 120             y += height ;
 121         }
 122     }
 123 }
 124
 125 void wxStaticText::OnDraw( wxDC &dc )
 126 {
 127     if (m_width <= 0 || m_height <= 0)
 128         return;
 129     /*
 130         dc.Clear() ;
 131         wxRect rect(0,0,m_width,m_height) ;
 132         dc.SetFont(*wxSMALL_FONT) ;
 133
 134           dc.DrawRectangle(rect) ;
 135     */
 136     if ( !IsWindowHilited( (WindowRef) MacGetRootWindow() ) &&
 137         ( GetBackgroundColour() == wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE )
 138         || GetBackgroundColour() == wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE) ) )
 139     {
 140         dc.SetTextForeground( wxColour( 0x80 , 0x80 , 0x80 ) ) ;
 141     }
 142     else
 143     {
 144         dc.SetTextForeground( GetForegroundColour() ) ;
 145     }
 146
 147     wxString paragraph;
 148     size_t i = 0 ;
 149     wxString text = m_label;
 150     int y = 0 ;
 151     while (i < text.Length())
 152     {
 153
 154         if (text[i] == 13 || text[i] == 10)
 155         {
 156             DrawParagraph(dc, paragraph,y);
 157             paragraph = wxEmptyString ;
 158         }
 159         else
 160         {
 161             paragraph += text[i];
 162         }
 163         ++i;
 164     }
 165     if (paragraph.Length() > 0)
 166         DrawParagraph(dc, paragraph,y);
 167 }
 168
 169 void wxStaticText::OnPaint( wxPaintEvent & WXUNUSED(event) )
 170 {
 171     wxPaintDC dc(this);
 172     OnDraw( dc ) ;
 173 }
 174
 175 wxSize wxStaticText::DoGetBestSize() const
 176 {
 177     int widthTextMax = 0, widthLine,
 178         heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
 179
 180     wxString curLine;
 181     for ( const wxChar *pc = m_label; ; pc++ )
 182     {
 183         if ( *pc == wxT('\n') || *pc == wxT('\r') || *pc == wxT('\0') )
 184         {
 185             if ( !curLine )
 186             {
 187                 // we can't use GetTextExtent - it will return 0 for both width
 188                 // and height and an empty line should count in height
 189                 // calculation
 190                 if ( !heightLineDefault )
 191                     heightLineDefault = heightLine;
 192                 if ( !heightLineDefault )
 193                     GetTextExtent(_T("W"), NULL, &heightLineDefault);
 194
 195                 heightTextTotal += heightLineDefault;
 196
 197                 heightTextTotal++;  // FIXME: why is this necessary?
 198             }
 199             else
 200             {
 201                 GetTextExtent(curLine, &widthLine, &heightLine);
 202                 if ( widthLine > widthTextMax )
 203                     widthTextMax = widthLine;
 204                 heightTextTotal += heightLine;
 205
 206                 heightTextTotal++;  // FIXME: why is this necessary?
 207             }
 208
 209             if ( *pc == wxT('\n') || *pc == wxT('\r')) {
 210                curLine.Empty();
 211             }
 212             else {
 213                // the end of string
 214                break;
 215             }
 216         }
 217         else {
 218             curLine += *pc;
 219         }
 220     }
 221
 222     return wxSize(widthTextMax, heightTextTotal);
 223 }
 224
 225 void wxStaticText::SetLabel(const wxString& st )
 226 {
 227     SetTitle( st ) ;
 228     m_label = st ;
 229     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 230     {
 231         // temporary fix until layout measurement and drawing are in synch again
 232         Refresh() ;
 233         InvalidateBestSize();
 234         SetSize( GetBestSize() ) ;
 235     }
 236     Refresh() ;
 237     Update() ;
 238 }
 239
 240 bool wxStaticText::SetFont(const wxFont& font)
 241 {
 242     bool ret = wxControl::SetFont(font);
 243
 244         if ( ret )
 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             {
 250                 // temporary fix until layout measurement and drawing are in synch again
 251                 Refresh() ;
 252                 InvalidateBestSize();
 253                 SetSize( GetBestSize() );
 254             }
 255         }
 256
 257     return ret;
 258 }