src/univ/statusbr.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        univ/statusbr.cpp
   3 // Purpose:     wxStatusBar implementation
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     14.10.01
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 2000 SciTech Software, Inc. (www.scitechsoft.com)
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 #ifdef __GNUG__
  21     #pragma implementation "univstatusbr.h"
  22 #endif
  23
  24 #include "wx/wxprec.h"
  25
  26 #ifdef __BORLANDC__
  27     #pragma hdrstop
  28 #endif
  29
  30 #if wxUSE_STATUSBAR
  31
  32 #ifndef WX_PRECOMP
  33     #include "wx/settings.h"
  34     #include "wx/dcclient.h"
  35 #endif
  36
  37 #include "wx/statusbr.h"
  38
  39 #include "wx/univ/renderer.h"
  40
  41 // ============================================================================
  42 // implementation
  43 // ============================================================================
  44
  45 BEGIN_EVENT_TABLE(wxStatusBarUniv, wxStatusBarBase)
  46     EVT_SIZE(wxStatusBarUniv::OnSize)
  47
  48     WX_EVENT_TABLE_INPUT_CONSUMER(wxStatusBarUniv)
  49 END_EVENT_TABLE()
  50
  51 WX_FORWARD_TO_INPUT_CONSUMER(wxStatusBarUniv)
  52
  53 // ----------------------------------------------------------------------------
  54 // creation
  55 // ----------------------------------------------------------------------------
  56
  57 void wxStatusBarUniv::Init()
  58 {
  59 }
  60
  61 bool wxStatusBarUniv::Create(wxWindow *parent,
  62                              wxWindowID id,
  63                              long style,
  64                              const wxString& name)
  65 {
  66     if ( !wxWindow::Create(parent, id,
  67                            wxDefaultPosition, wxDefaultSize,
  68                            style, name) )
  69     {
  70         return FALSE;
  71     }
  72
  73     SetFieldsCount(1);
  74
  75     CreateInputHandler(wxINP_HANDLER_STATUSBAR);
  76
  77     SetSize(DoGetBestSize());
  78
  79     return TRUE;
  80 }
  81
  82 // ----------------------------------------------------------------------------
  83 // drawing
  84 // ----------------------------------------------------------------------------
  85
  86 wxRect wxStatusBarUniv::GetTotalFieldRect(wxCoord *borderBetweenFields)
  87 {
  88     wxRect rect = GetClientRect();
  89
  90     // no, don't do this - the borders are meant to be inside this rect
  91     //rect.Deflate(sizeBorders.x, sizeBorders.y);
  92
  93     // recalc the field widths if needed
  94     if ( m_widthsAbs.IsEmpty() )
  95     {
  96         // the total width for the fields doesn't include the borders between
  97         // them
  98         m_widthsAbs = CalculateAbsWidths(rect.width -
  99                                          *borderBetweenFields*(m_nFields - 1));
 100     }
 101
 102     return rect;
 103 }
 104
 105 void wxStatusBarUniv::DoDraw(wxControlRenderer *renderer)
 106 {
 107     // get the fields rect
 108     wxCoord borderBetweenFields;
 109     wxRect rect = GetTotalFieldRect(&borderBetweenFields);
 110
 111     // prepare the DC
 112     wxDC& dc = renderer->GetDC();
 113     dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 114
 115     // do draw the fields
 116     int flags = IsEnabled() ? 0 : wxCONTROL_DISABLED;
 117     for ( int n = 0; n < m_nFields; n++ )
 118     {
 119         rect.width = m_widthsAbs[n];
 120
 121         if ( IsExposed(rect) )
 122         {
 123             // the size grip may be drawn only on the last field and only if we
 124             // have the corresponding style and even then only if we really can
 125             // resize this frame
 126             if ( n == m_nFields - 1 &&
 127                  HasFlag(wxST_SIZEGRIP) &&
 128                  GetParent()->HasFlag(wxRESIZE_BORDER) )
 129             {
 130                 // NB: we use wxCONTROL_ISDEFAULT for this because it doesn't
 131                 //     have any meaning for the status bar otherwise anyhow
 132                 //     (it's still ugly, of course, but there are too few flags
 133                 //     to squander them for things like this)
 134                 flags |= wxCONTROL_ISDEFAULT;
 135             }
 136
 137             m_renderer->DrawStatusField(dc, rect, m_statusText[n], flags);
 138         }
 139
 140         rect.x += rect.width + borderBetweenFields;
 141     }
 142 }
 143
 144 void wxStatusBarUniv::RefreshField(int i)
 145 {
 146     wxRect rect;
 147     if ( GetFieldRect(i, rect) )
 148     {
 149         RefreshRect(rect);
 150     }
 151 }
 152
 153 // ----------------------------------------------------------------------------
 154 // fields text
 155 // ----------------------------------------------------------------------------
 156
 157 void wxStatusBarUniv::SetStatusText(const wxString& text, int number)
 158 {
 159     wxCHECK_RET( number >= 0 && number < m_nFields,
 160                  _T("invalid status bar field index in SetStatusText()") );
 161
 162     if ( text == m_statusText[number] )
 163     {
 164         // nothing changed
 165         return;
 166     }
 167
 168     m_statusText[number] = text;
 169
 170     RefreshField(number);
 171 }
 172
 173 wxString wxStatusBarUniv::GetStatusText(int number) const
 174 {
 175     wxCHECK_MSG( number >= 0 && number < m_nFields, _T(""),
 176                  _T("invalid status bar field index") );
 177
 178     return m_statusText[number];
 179 }
 180
 181 // ----------------------------------------------------------------------------
 182 // fields count/widths
 183 // ----------------------------------------------------------------------------
 184
 185 void wxStatusBarUniv::SetFieldsCount(int number, const int *widths)
 186 {
 187     wxStatusBarBase::SetFieldsCount(number, widths);
 188
 189     m_statusText.SetCount(number);
 190     m_widthsAbs.Empty();
 191 }
 192
 193 void wxStatusBarUniv::SetStatusWidths(int n, const int widths[])
 194 {
 195     wxStatusBarBase::SetStatusWidths(n, widths);
 196
 197     m_widthsAbs.Empty();
 198 }
 199
 200 // ----------------------------------------------------------------------------
 201 // geometry
 202 // ----------------------------------------------------------------------------
 203
 204 void wxStatusBarUniv::OnSize(wxSizeEvent& event)
 205 {
 206     // invalidate the widths, we'll have to recalc them
 207     m_widthsAbs.Empty();
 208
 209     // refresh entirely, shouldn't matter much as the statusbar is quick to
 210     // redraw and it would be difficult to avoid it as we'd need to find out
 211     // which fields exactly were affected...
 212     Refresh();
 213
 214     event.Skip();
 215 }
 216
 217 bool wxStatusBarUniv::GetFieldRect(int n, wxRect& rect) const
 218 {
 219     wxCHECK_MSG( n >= 0 && n < m_nFields, FALSE,
 220                  _T("invalid field index in GetFieldRect()") );
 221
 222     // this is a fix for a bug exhibited by the statbar sample: if
 223     // GetFieldRect() is called from the derived class OnSize() handler, then
 224     // our geometry info is wrong as our OnSize() didn't invalidate m_widthsAbs
 225     // yet - so recalc it just in case
 226     wxStatusBarUniv *self = wxConstCast(this, wxStatusBarUniv);
 227     self->m_widthsAbs.Empty();
 228
 229     wxCoord borderBetweenFields;
 230     rect = self->GetTotalFieldRect(&borderBetweenFields);
 231     for ( int i = 0; i <= n; i++ )
 232     {
 233         rect.width = m_widthsAbs[i];
 234
 235         if ( i < n )
 236             rect.x += rect.width + borderBetweenFields;
 237     }
 238
 239     return TRUE;
 240 }
 241
 242 wxCoord wxStatusBarUniv::GetHeight() const
 243 {
 244     wxClientDC dc(wxConstCast(this, wxStatusBarUniv));
 245     dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT));
 246
 247     return dc.GetCharHeight() + 2*GetBorderY();
 248 }
 249
 250 wxSize wxStatusBarUniv::DoGetBestSize() const
 251 {
 252     return wxSize(100, GetHeight());
 253 }
 254
 255 void wxStatusBarUniv::DoSetSize(int x, int y,
 256                                 int width, int WXUNUSED(height),
 257                                 int sizeFlags)
 258 {
 259     wxStatusBarBase::DoSetSize(x, y, width, GetHeight(), sizeFlags);
 260 }
 261
 262 // ----------------------------------------------------------------------------
 263 // misc
 264 // ----------------------------------------------------------------------------
 265
 266 void wxStatusBarUniv::SetMinHeight(int WXUNUSED(height))
 267 {
 268     // nothing to do here, we don't support it - and why would we?
 269 }
 270
 271 int wxStatusBarUniv::GetBorderX() const
 272 {
 273     return m_renderer->GetStatusBarBorders(NULL).x;
 274 }
 275
 276 int wxStatusBarUniv::GetBorderY() const
 277 {
 278     return m_renderer->GetStatusBarBorders(NULL).y;
 279 }
 280
 281 #endif // wxUSE_STATUSBAR
 282