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     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 = wxStripMenuCodes(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 = wxT(" ,.-;:!?");
  63
  64 void wxStaticText::DrawParagraph(wxDC &dc, wxString paragraph, int &y)
  65 {
  66     long width, height ;
  67
  68     if (paragraph.Length() == 0)
  69     {
  70         // empty line
  71         dc.GetTextExtent( wxT("H"), &width, &height );
  72         y += height;
  73
  74         return;
  75     }
  76
  77     int x = 0 ;
  78
  79     bool linedrawn = true;
  80     while( paragraph.Length() > 0 )
  81     {
  82         dc.GetTextExtent( paragraph , &width , &height ) ;
  83
  84         if ( width > m_width )
  85         {
  86             for ( size_t p = paragraph.Length() - 1 ; p > 0 ; --p )
  87             {
  88                 if ((punct.Find(paragraph[p]) != wxNOT_FOUND) || !linedrawn)
  89                 {
  90                     int blank = (paragraph[p] == ' ') ? 0 : 1;
  91
  92                     dc.GetTextExtent( paragraph.Left(p + blank) , &width , &height ) ;
  93
  94                     if ( width <= m_width )
  95                     {
  96                         int pos = x ;
  97                         if ( HasFlag( wxALIGN_CENTER ) )
  98                         {
  99                             pos += ( m_width - width ) / 2 ;
 100                         }
 101                         else if ( HasFlag( wxALIGN_RIGHT ) )
 102                         {
 103                             pos += ( m_width - width ) ;
 104                         }
 105
 106                         dc.DrawText( paragraph.Left(p + blank), pos , y) ;
 107                         y += height ;
 108                         paragraph = paragraph.Mid(p+1) ;
 109                         linedrawn = true;
 110                         break ;
 111                     }
 112                 }
 113             }
 114
 115             linedrawn = false;
 116         }
 117         else
 118         {
 119             int pos = x ;
 120             if ( HasFlag( wxALIGN_CENTER ) )
 121             {
 122                 pos += ( m_width - width ) / 2 ;
 123             }
 124             else if ( HasFlag( wxALIGN_RIGHT ) )
 125             {
 126                 pos += ( m_width - width ) ;
 127             }
 128
 129             dc.DrawText( paragraph, pos , y) ;
 130             paragraph=wxEmptyString;
 131             y += height ;
 132         }
 133     }
 134 }
 135
 136 void wxStaticText::OnDraw( wxDC &dc )
 137 {
 138     if (m_width <= 0 || m_height <= 0)
 139         return;
 140     /*
 141         dc.Clear() ;
 142         wxRect rect(0,0,m_width,m_height) ;
 143         dc.SetFont(*wxSMALL_FONT) ;
 144
 145           dc.DrawRectangle(rect) ;
 146     */
 147     if ( !IsWindowHilited( (WindowRef) MacGetRootWindow() ) &&
 148         ( GetBackgroundColour() == wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE )
 149         || GetBackgroundColour() == wxSystemSettings::GetColour(wxSYS_COLOUR_APPWORKSPACE) ) )
 150     {
 151         dc.SetTextForeground( wxColour( 0x80 , 0x80 , 0x80 ) ) ;
 152     }
 153     else
 154     {
 155         dc.SetTextForeground( GetForegroundColour() ) ;
 156     }
 157
 158     wxString paragraph;
 159     size_t i = 0 ;
 160     wxString text = m_label;
 161     int y = 0 ;
 162     while (i < text.Length())
 163     {
 164
 165         if (text[i] == 13 || text[i] == 10)
 166         {
 167             DrawParagraph(dc, paragraph,y);
 168             paragraph = wxEmptyString ;
 169         }
 170         else
 171         {
 172             paragraph += text[i];
 173         }
 174         ++i;
 175     }
 176     if (paragraph.Length() > 0)
 177         DrawParagraph(dc, paragraph,y);
 178 }
 179
 180 void wxStaticText::OnPaint( wxPaintEvent & WXUNUSED(event) )
 181 {
 182     wxPaintDC dc(this);
 183     OnDraw( dc ) ;
 184 }
 185
 186 wxSize wxStaticText::DoGetBestSize() const
 187 {
 188     int widthTextMax = 0, widthLine,
 189         heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
 190
 191     wxString curLine;
 192     for ( const wxChar *pc = m_label; ; pc++ )
 193     {
 194         if ( *pc == wxT('\n') || *pc == wxT('\0') )
 195         {
 196             if ( !curLine )
 197             {
 198                 // we can't use GetTextExtent - it will return 0 for both width
 199                 // and height and an empty line should count in height
 200                 // calculation
 201                 if ( !heightLineDefault )
 202                     heightLineDefault = heightLine;
 203                 if ( !heightLineDefault )
 204                     GetTextExtent(_T("W"), NULL, &heightLineDefault);
 205
 206                 heightTextTotal += heightLineDefault;
 207
 208                 heightTextTotal++;  // FIXME: why is this necessary?
 209             }
 210             else
 211             {
 212                 GetTextExtent(curLine, &widthLine, &heightLine);
 213                 if ( widthLine > widthTextMax )
 214                     widthTextMax = widthLine;
 215                 heightTextTotal += heightLine;
 216
 217                 heightTextTotal++;  // FIXME: why is this necessary?
 218             }
 219
 220             if ( *pc == wxT('\n') ) {
 221                curLine.Empty();
 222             }
 223             else {
 224                // the end of string
 225                break;
 226             }
 227         }
 228         else {
 229             curLine += *pc;
 230         }
 231     }
 232
 233     return wxSize(widthTextMax, heightTextTotal);
 234 }
 235
 236 void wxStaticText::SetLabel(const wxString& st )
 237 {
 238     SetTitle( st ) ;
 239     m_label = st ;
 240     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 241         SetSize( GetBestSize() ) ;
 242
 243     Refresh() ;
 244     Update() ;
 245 }
 246
 247 bool wxStaticText::SetFont(const wxFont& font)
 248 {
 249     bool ret = wxControl::SetFont(font);
 250
 251     // adjust the size of the window to fit to the label unless autoresizing is
 252     // disabled
 253     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 254         SetSize( GetBestSize() );
 255
 256     return ret;
 257 }