src/generic/statusbr.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        generic/statusbr.cpp
   3 // Purpose:     wxStatusBarGeneric class implementation
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     01/02/97
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart and Markus Holzem
   9 // Licence:     wxWindows license
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifdef __GNUG__
  13 #pragma implementation "statusbr.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_STATUSBAR
  24
  25 #ifndef WX_PRECOMP
  26 #include "wx/setup.h"
  27 #include "wx/frame.h"
  28 #include "wx/settings.h"
  29 #include "wx/dcclient.h"
  30 #endif
  31
  32 #include "wx/statusbr.h"
  33
  34 // we only have to do it here when we use wxStatusBarGeneric in addition to the
  35 // standard wxStatusBar class, if wxStatusBarGeneric is the same as
  36 // wxStatusBar, then the corresponding IMPLEMENT_DYNAMIC_CLASS is already in
  37 // common/statbar.cpp
  38 #if defined(__WXMAC__) || \
  39     (defined(wxUSE_NATIVE_STATUSBAR) && wxUSE_NATIVE_STATUSBAR)
  40     #include "wx/generic/statusbr.h"
  41
  42     IMPLEMENT_DYNAMIC_CLASS(wxStatusBarGeneric, wxWindow)
  43 #endif // wxUSE_NATIVE_STATUSBAR
  44
  45 BEGIN_EVENT_TABLE(wxStatusBarGeneric, wxWindow)
  46     EVT_PAINT(wxStatusBarGeneric::OnPaint)
  47     EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
  48 END_EVENT_TABLE()
  49
  50 // Default status border dimensions
  51 #define         wxTHICK_LINE_BORDER 2
  52 #define         wxTHICK_LINE_WIDTH  1
  53
  54 wxStatusBarGeneric::wxStatusBarGeneric()
  55 {
  56   m_borderX = wxTHICK_LINE_BORDER;
  57   m_borderY = wxTHICK_LINE_BORDER;
  58 }
  59
  60 wxStatusBarGeneric::~wxStatusBarGeneric()
  61 {
  62 #   ifdef __WXMSW__
  63         SetFont(wxNullFont);
  64 #   endif // MSW
  65 }
  66
  67 bool wxStatusBarGeneric::Create(wxWindow *parent,
  68                                 wxWindowID id,
  69                                 long style,
  70                                 const wxString& name)
  71 {
  72     // If create is ever meant to be re-entrant over the life of
  73     // an object we should:
  74     // m_statusStrings.Empty();
  75
  76   m_borderX = wxTHICK_LINE_BORDER;
  77   m_borderY = wxTHICK_LINE_BORDER;
  78
  79   bool success = wxWindow::Create(parent, id,
  80                                   wxDefaultPosition, wxDefaultSize,
  81                                   style | wxTAB_TRAVERSAL, name);
  82
  83   // The status bar should have a themed background
  84   SetThemeEnabled( TRUE );
  85
  86   // Don't wish this to be found as a child
  87 #ifndef __WXMAC__
  88   parent->GetChildren().DeleteObject(this);
  89 #endif
  90   InitColours();
  91
  92   SetFont(m_defaultStatusBarFont);
  93
  94   // Set the height according to the font and the border size
  95   wxClientDC dc(this);
  96   dc.SetFont(GetFont());
  97
  98   wxCoord y;
  99   dc.GetTextExtent(_T("X"), NULL, &y );
 100
 101   int height = (int)( (11*y)/10 + 2*GetBorderY());
 102
 103   SetSize(-1, -1, -1, height);
 104
 105   return success;
 106 }
 107
 108 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 109 {
 110     wxASSERT_MSG( number >= 0,
 111                   _T("Yes, number should be a size_t and less than no fields is silly.") );
 112
 113     // if( number > m_nFields )
 114
 115     int i;
 116     for(i = m_nFields; i < number; ++i)
 117         m_statusStrings.Add( wxEmptyString );
 118
 119     // if( number < m_nFields )
 120
 121     for (i = m_nFields - 1; i >= number; --i)
 122         m_statusStrings.Remove(i);
 123
 124     m_nFields = number;
 125
 126     wxASSERT_MSG( m_nFields == (int)m_statusStrings.GetCount(),
 127                   _T("This really should never happen, can we do away with m_nFields here?") );
 128
 129     SetStatusWidths(number, widths);
 130 }
 131
 132 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 133 {
 134     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 135                  _T("invalid status bar field index") );
 136
 137     m_statusStrings[number] = text;
 138
 139     wxRect rect;
 140     GetFieldRect(number, rect);
 141
 142     Refresh( TRUE, &rect );
 143 }
 144
 145 wxString wxStatusBarGeneric::GetStatusText(int n) const
 146 {
 147     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 148                  _T("invalid status bar field index") );
 149
 150     return m_statusStrings[n];
 151 }
 152
 153 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 154 {
 155     // only set status widths, when n == number of statuswindows
 156     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 157
 158     // delete the old widths in any case - this function may be used to reset
 159     // the widths to the default (all equal)
 160     // MBN: this is incompatible with at least wxMSW and wxMAC and not
 161     //      documented, but let's keep it for now
 162     ReinitWidths();
 163
 164     if ( !widths_field )
 165     {
 166         // not an error, see the comment above
 167         Refresh();
 168         return;
 169     }
 170
 171     wxStatusBarBase::SetStatusWidths(n, widths_field);
 172 }
 173
 174 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 175 {
 176   wxPaintDC dc(this);
 177
 178
 179   int i;
 180   if ( GetFont().Ok() )
 181     dc.SetFont(GetFont());
 182   dc.SetBackgroundMode(wxTRANSPARENT);
 183
 184 #ifdef __WXPM__
 185   wxColour                          vColor;
 186
 187   vColor = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR);
 188   ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 189 #endif
 190
 191   for ( i = 0; i < m_nFields; i ++ )
 192     DrawField(dc, i);
 193
 194 #ifdef __WXMSW__
 195   dc.SetFont(wxNullFont);
 196 #endif // MSW
 197 }
 198
 199 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 200 {
 201   int leftMargin = 2;
 202
 203   wxRect rect;
 204   GetFieldRect(i, rect);
 205
 206   wxString text(GetStatusText(i));
 207
 208   long x, y;
 209
 210   dc.GetTextExtent(text, &x, &y);
 211
 212   int xpos = rect.x + leftMargin;
 213   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 214
 215 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 216   xpos++;
 217   ypos++;
 218 #endif
 219
 220   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 221
 222   dc.DrawText(text, xpos, ypos);
 223
 224   dc.DestroyClippingRegion();
 225 }
 226
 227 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 228 {
 229   wxRect rect;
 230   GetFieldRect(i, rect);
 231
 232     // Draw border
 233     // Have grey background, plus 3-d border -
 234     // One black rectangle.
 235     // Inside this, left and top sides - dark grey. Bottom and right -
 236     // white.
 237
 238     dc.SetPen(m_hilightPen);
 239
 240 #ifndef __WXPM__
 241
 242     // Right and bottom white lines
 243     dc.DrawLine(rect.x + rect.width, rect.y,
 244                 rect.x + rect.width, rect.y + rect.height);
 245     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 246                 rect.x, rect.y + rect.height);
 247
 248     dc.SetPen(m_mediumShadowPen);
 249
 250     // Left and top grey lines
 251     dc.DrawLine(rect.x, rect.y + rect.height,
 252            rect.x, rect.y);
 253     dc.DrawLine(rect.x, rect.y,
 254         rect.x + rect.width, rect.y);
 255 #else
 256
 257     dc.DrawLine(rect.x + rect.width, rect.height + 2,
 258                 rect.x, rect.height + 2);
 259     dc.DrawLine(rect.x + rect.width, rect.y,
 260                 rect.x + rect.width, rect.y + rect.height);
 261
 262     dc.SetPen(m_mediumShadowPen);
 263     dc.DrawLine(rect.x, rect.y,
 264                 rect.x + rect.width, rect.y);
 265     dc.DrawLine(rect.x, rect.y + rect.height,
 266                 rect.x, rect.y);
 267
 268 #endif
 269
 270     DrawFieldText(dc, i);
 271 }
 272
 273   // Get the position and size of the field's internal bounding rectangle
 274 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 275 {
 276   wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 277                _T("invalid status bar field index") );
 278
 279   int width, height;
 280 #ifdef __WXPM__
 281   GetSize(&width, &height);
 282 #else
 283   GetClientSize(&width, &height);
 284 #endif
 285
 286   int i;
 287   int sum_of_nonvar = 0;
 288   int num_of_var = 0;
 289   bool do_same_width = FALSE;
 290
 291   int fieldWidth = 0;
 292   int fieldPosition = 0;
 293
 294   if (m_statusWidths)
 295   {
 296     // if sum(not variable Windows) > c_width - (20 points per variable_window)
 297     // then do_same_width = TRUE;
 298     for (i = 0; i < m_nFields; i++)
 299     {
 300        if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
 301         else num_of_var++;
 302      }
 303      if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
 304   }
 305   else do_same_width = TRUE;
 306   if (do_same_width)
 307   {
 308     for (i = 0; i < m_nFields; i++)
 309     {
 310       fieldWidth = (int)(width/m_nFields);
 311       fieldPosition = i*fieldWidth;
 312       if ( i == n )
 313         break;
 314     }
 315   }
 316   else // no_same_width
 317   {
 318     int *tempwidth = new int[m_nFields];
 319     int temppos = 0;
 320     for (i = 0; i < m_nFields; i++)
 321     {
 322       if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
 323       else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
 324     }
 325     for (i = 0; i < m_nFields; i++)
 326     {
 327         fieldWidth = tempwidth[i];
 328         fieldPosition = temppos;
 329
 330           temppos += tempwidth[i];
 331
 332         if ( i == n )
 333             break;
 334     }
 335     delete [] tempwidth;
 336   }
 337
 338     rect.x = fieldPosition + wxTHICK_LINE_BORDER;
 339     rect.y = wxTHICK_LINE_BORDER;
 340
 341     rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
 342     rect.height = height - 2 * wxTHICK_LINE_BORDER ;
 343
 344     return TRUE;
 345 }
 346
 347 // Initialize colours
 348 void wxStatusBarGeneric::InitColours()
 349 {
 350     // Shadow colours
 351 #if defined(__WIN95__)
 352     wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
 353     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 354
 355     wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
 356     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 357 #elif defined(__WXPM__)
 358     m_mediumShadowPen = wxPen(wxColour(127, 127, 127), 1, wxSOLID);
 359     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 360
 361     wxColour                        vColour;
 362
 363     vColour.Set(wxString("LIGHT GREY"));
 364     SetBackgroundColour(vColour);
 365     vColour.Set(wxString("BLACK"));
 366     SetForegroundColour(vColour);
 367     m_defaultStatusBarFont = *wxSMALL_FONT;
 368 #else
 369     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 370     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 371 #endif
 372
 373 #ifndef __WXPM__
 374     m_defaultStatusBarFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 375     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
 376 #endif
 377 }
 378
 379 // Responds to colour changes, and passes event on to children.
 380 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 381 {
 382     InitColours();
 383     Refresh();
 384
 385     // Propagate the event to the non-top-level children
 386     wxWindow::OnSysColourChanged(event);
 387 }
 388
 389 void wxStatusBarGeneric::SetMinHeight(int height)
 390 {
 391     // check that this min height is not less than minimal height for the
 392     // current font
 393     wxClientDC dc(this);
 394     wxCoord y;
 395     dc.GetTextExtent( _T("X"), NULL, &y );
 396
 397     if ( height > (11*y)/10 )
 398     {
 399         SetSize(-1, -1, -1, height + 2*m_borderY);
 400     }
 401 }
 402
 403 #endif // wxUSE_STATUSBAR
 404
 405 // vi:sts=4:sw=4:et