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