src/msw/stattext.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/msw/stattext.cpp
   3 // Purpose:     wxStaticText
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     04/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "stattext.h"
  14 #endif
  15
  16 // For compilers that support precompilation, includes "wx.h".
  17 #include "wx/wxprec.h"
  18
  19 #ifdef __BORLANDC__
  20 #pragma hdrstop
  21 #endif
  22
  23 #if wxUSE_STATTEXT
  24
  25 #ifndef WX_PRECOMP
  26 #include "wx/event.h"
  27 #include "wx/app.h"
  28 #include "wx/brush.h"
  29 #endif
  30
  31 #include "wx/stattext.h"
  32 #include "wx/msw/private.h"
  33 #include <stdio.h>
  34
  35 IMPLEMENT_DYNAMIC_CLASS(wxStaticText, wxControl)
  36
  37 bool wxStaticText::Create(wxWindow *parent,
  38                           wxWindowID id,
  39                           const wxString& label,
  40                           const wxPoint& pos,
  41                           const wxSize& size,
  42                           long style,
  43                           const wxString& name)
  44 {
  45     // By default, a static text should have no border.
  46     if ((style & wxBORDER_MASK) == wxBORDER_DEFAULT)
  47         style |= wxBORDER_NONE;
  48
  49     if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
  50         return FALSE;
  51
  52     if ( !MSWCreateControl(wxT("STATIC"), label, pos, size) )
  53         return FALSE;
  54
  55     return TRUE;
  56 }
  57
  58 WXDWORD wxStaticText::MSWGetStyle(long style, WXDWORD *exstyle) const
  59 {
  60     WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
  61
  62     // translate the alignment flags to the Windows ones
  63     //
  64     // note that both wxALIGN_LEFT and SS_LEFT are equal to 0 so we shouldn't
  65     // test for them using & operator
  66     if ( style & wxALIGN_CENTRE )
  67         msStyle |= SS_CENTER;
  68     else if ( style & wxALIGN_RIGHT )
  69         msStyle |= SS_RIGHT;
  70     else
  71         msStyle |= SS_LEFT;
  72
  73     return msStyle;
  74 }
  75
  76 wxSize wxStaticText::DoGetBestSize() const
  77 {
  78     wxString text(wxGetWindowText(GetHWND()));
  79
  80     int widthTextMax = 0, widthLine,
  81         heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
  82
  83     bool lastWasAmpersand = FALSE;
  84
  85     wxString curLine;
  86     for ( const wxChar *pc = text; ; pc++ )
  87     {
  88         if ( *pc == wxT('\n') || *pc == wxT('\0') )
  89         {
  90             if ( !curLine )
  91             {
  92                 // we can't use GetTextExtent - it will return 0 for both width
  93                 // and height and an empty line should count in height
  94                 // calculation
  95                 if ( !heightLineDefault )
  96                     heightLineDefault = heightLine;
  97                 if ( !heightLineDefault )
  98                     GetTextExtent(_T("W"), NULL, &heightLineDefault);
  99
 100                 heightTextTotal += heightLineDefault;
 101             }
 102             else
 103             {
 104                 GetTextExtent(curLine, &widthLine, &heightLine);
 105                 if ( widthLine > widthTextMax )
 106                     widthTextMax = widthLine;
 107                 heightTextTotal += heightLine;
 108             }
 109
 110             if ( *pc == wxT('\n') )
 111             {
 112                curLine.Empty();
 113             }
 114             else
 115             {
 116                // the end of string
 117                break;
 118             }
 119         }
 120         else
 121         {
 122             // we shouldn't take into account the '&' which just introduces the
 123             // mnemonic characters and so are not shown on the screen -- except
 124             // when it is preceded by another '&' in which case it stands for a
 125             // literal ampersand
 126             if ( *pc == _T('&') )
 127             {
 128                 if ( !lastWasAmpersand )
 129                 {
 130                     lastWasAmpersand = TRUE;
 131
 132                     // skip the statement adding pc to curLine below
 133                     continue;
 134                 }
 135
 136                 // it is a literal ampersand
 137                 lastWasAmpersand = FALSE;
 138             }
 139
 140             curLine += *pc;
 141         }
 142     }
 143
 144     return wxSize(widthTextMax, heightTextTotal);
 145 }
 146
 147 void wxStaticText::DoSetSize(int x, int y, int w, int h, int sizeFlags)
 148 {
 149     // we need to refresh the window after changing its size as the standard
 150     // control doesn't always update itself properly
 151     wxStaticTextBase::DoSetSize(x, y, w, h, sizeFlags);
 152
 153     Refresh();
 154 }
 155
 156 void wxStaticText::SetLabel(const wxString& label)
 157 {
 158     wxStaticTextBase::SetLabel(label);
 159
 160     // adjust the size of the window to fit to the label unless autoresizing is
 161     // disabled
 162     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 163     {
 164         DoSetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
 165     }
 166 }
 167
 168
 169 bool wxStaticText::SetFont(const wxFont& font)
 170 {
 171     bool ret = wxControl::SetFont(font);
 172
 173     // adjust the size of the window to fit to the label unless autoresizing is
 174     // disabled
 175     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 176     {
 177         DoSetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
 178     }
 179
 180     return ret;
 181 }
 182
 183 #endif // wxUSE_STATTEXT