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     if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
  46         return FALSE;
  47
  48     if ( !MSWCreateControl(wxT("STATIC"), label, pos, size) )
  49         return FALSE;
  50
  51     return TRUE;
  52 }
  53
  54 WXDWORD wxStaticText::MSWGetStyle(long style, WXDWORD *exstyle) const
  55 {
  56     WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
  57
  58     // translate the alignment flags to the Windows ones
  59     //
  60     // note that both wxALIGN_LEFT and SS_LEFT are equal to 0 so we shouldn't
  61     // test for them using & operator
  62     if ( style & wxALIGN_CENTRE )
  63         msStyle |= SS_CENTER;
  64     else if ( style & wxALIGN_RIGHT )
  65         msStyle |= SS_RIGHT;
  66     else
  67         msStyle |= SS_LEFT;
  68
  69     return msStyle;
  70 }
  71
  72 wxSize wxStaticText::DoGetBestSize() const
  73 {
  74     wxString text(wxGetWindowText(GetHWND()));
  75
  76     int widthTextMax = 0, widthLine,
  77         heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
  78
  79     bool lastWasAmpersand = FALSE;
  80
  81     wxString curLine;
  82     for ( const wxChar *pc = text; ; pc++ )
  83     {
  84         if ( *pc == wxT('\n') || *pc == wxT('\0') )
  85         {
  86             if ( !curLine )
  87             {
  88                 // we can't use GetTextExtent - it will return 0 for both width
  89                 // and height and an empty line should count in height
  90                 // calculation
  91                 if ( !heightLineDefault )
  92                     heightLineDefault = heightLine;
  93                 if ( !heightLineDefault )
  94                     GetTextExtent(_T("W"), NULL, &heightLineDefault);
  95
  96                 heightTextTotal += heightLineDefault;
  97             }
  98             else
  99             {
 100                 GetTextExtent(curLine, &widthLine, &heightLine);
 101                 if ( widthLine > widthTextMax )
 102                     widthTextMax = widthLine;
 103                 heightTextTotal += heightLine;
 104             }
 105
 106             if ( *pc == wxT('\n') )
 107             {
 108                curLine.Empty();
 109             }
 110             else
 111             {
 112                // the end of string
 113                break;
 114             }
 115         }
 116         else
 117         {
 118             // we shouldn't take into account the '&' which just introduces the
 119             // mnemonic characters and so are not shown on the screen -- except
 120             // when it is preceded by another '&' in which case it stands for a
 121             // literal ampersand
 122             if ( *pc == _T('&') )
 123             {
 124                 if ( !lastWasAmpersand )
 125                 {
 126                     lastWasAmpersand = TRUE;
 127
 128                     // skip the statement adding pc to curLine below
 129                     continue;
 130                 }
 131
 132                 // it is a literal ampersand
 133                 lastWasAmpersand = FALSE;
 134             }
 135
 136             curLine += *pc;
 137         }
 138     }
 139
 140     return wxSize(widthTextMax, heightTextTotal);
 141 }
 142
 143 void wxStaticText::DoSetSize(int x, int y, int w, int h, int sizeFlags)
 144 {
 145     // we need to refresh the window after changing its size as the standard
 146     // control doesn't always update itself properly
 147     wxStaticTextBase::DoSetSize(x, y, w, h, sizeFlags);
 148
 149     Refresh();
 150 }
 151
 152 void wxStaticText::SetLabel(const wxString& label)
 153 {
 154     wxStaticTextBase::SetLabel(label);
 155
 156     // adjust the size of the window to fit to the label unless autoresizing is
 157     // disabled
 158     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 159     {
 160         DoSetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
 161     }
 162 }
 163
 164
 165 bool wxStaticText::SetFont(const wxFont& font)
 166 {
 167     bool ret = wxControl::SetFont(font);
 168
 169     // adjust the size of the window to fit to the label unless autoresizing is
 170     // disabled
 171     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 172     {
 173         DoSetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
 174     }
 175
 176     return ret;
 177 }
 178
 179 #endif // wxUSE_STATTEXT