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 wxBorder wxStaticText::GetDefaultBorder() const
  55 {
  56     return wxBORDER_NONE;
  57 }
  58
  59 WXDWORD wxStaticText::MSWGetStyle(long style, WXDWORD *exstyle) const
  60 {
  61     WXDWORD msStyle = wxControl::MSWGetStyle(style, exstyle);
  62
  63     // translate the alignment flags to the Windows ones
  64     //
  65     // note that both wxALIGN_LEFT and SS_LEFT are equal to 0 so we shouldn't
  66     // test for them using & operator
  67     if ( style & wxALIGN_CENTRE )
  68         msStyle |= SS_CENTER;
  69     else if ( style & wxALIGN_RIGHT )
  70         msStyle |= SS_RIGHT;
  71     else
  72         msStyle |= SS_LEFT;
  73
  74     return msStyle;
  75 }
  76
  77 wxSize wxStaticText::DoGetBestSize() const
  78 {
  79     wxString text(wxGetWindowText(GetHWND()));
  80
  81     int widthTextMax = 0, widthLine,
  82         heightTextTotal = 0, heightLineDefault = 0, heightLine = 0;
  83
  84     bool lastWasAmpersand = FALSE;
  85
  86     wxString curLine;
  87     for ( const wxChar *pc = text; ; pc++ )
  88     {
  89         if ( *pc == wxT('\n') || *pc == wxT('\0') )
  90         {
  91             if ( !curLine )
  92             {
  93                 // we can't use GetTextExtent - it will return 0 for both width
  94                 // and height and an empty line should count in height
  95                 // calculation
  96                 if ( !heightLineDefault )
  97                     heightLineDefault = heightLine;
  98                 if ( !heightLineDefault )
  99                     GetTextExtent(_T("W"), NULL, &heightLineDefault);
 100
 101                 heightTextTotal += heightLineDefault;
 102             }
 103             else
 104             {
 105                 GetTextExtent(curLine, &widthLine, &heightLine);
 106                 if ( widthLine > widthTextMax )
 107                     widthTextMax = widthLine;
 108                 heightTextTotal += heightLine;
 109             }
 110
 111             if ( *pc == wxT('\n') )
 112             {
 113                curLine.Empty();
 114             }
 115             else
 116             {
 117                // the end of string
 118                break;
 119             }
 120         }
 121         else
 122         {
 123             // we shouldn't take into account the '&' which just introduces the
 124             // mnemonic characters and so are not shown on the screen -- except
 125             // when it is preceded by another '&' in which case it stands for a
 126             // literal ampersand
 127             if ( *pc == _T('&') )
 128             {
 129                 if ( !lastWasAmpersand )
 130                 {
 131                     lastWasAmpersand = TRUE;
 132
 133                     // skip the statement adding pc to curLine below
 134                     continue;
 135                 }
 136
 137                 // it is a literal ampersand
 138                 lastWasAmpersand = FALSE;
 139             }
 140
 141             curLine += *pc;
 142         }
 143     }
 144
 145     return wxSize(widthTextMax, heightTextTotal);
 146 }
 147
 148 void wxStaticText::DoSetSize(int x, int y, int w, int h, int sizeFlags)
 149 {
 150     // we need to refresh the window after changing its size as the standard
 151     // control doesn't always update itself properly
 152     wxStaticTextBase::DoSetSize(x, y, w, h, sizeFlags);
 153
 154     Refresh();
 155 }
 156
 157 void wxStaticText::SetLabel(const wxString& label)
 158 {
 159     wxStaticTextBase::SetLabel(label);
 160
 161     // adjust the size of the window to fit to the label unless autoresizing is
 162     // disabled
 163     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 164     {
 165         DoSetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
 166     }
 167 }
 168
 169
 170 bool wxStaticText::SetFont(const wxFont& font)
 171 {
 172     bool ret = wxControl::SetFont(font);
 173
 174     // adjust the size of the window to fit to the label unless autoresizing is
 175     // disabled
 176     if ( !(GetWindowStyle() & wxST_NO_AUTORESIZE) )
 177     {
 178         DoSetSize(-1, -1, -1, -1, wxSIZE_AUTO_WIDTH | wxSIZE_AUTO_HEIGHT);
 179     }
 180
 181     return ret;
 182 }
 183
 184 #endif // wxUSE_STATTEXT