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_statusWidths = (int *) NULL;
  57   m_statusStrings = (wxString *) NULL;
  58   m_nFields = 0;
  59   m_borderX = wxTHICK_LINE_BORDER;
  60   m_borderY = wxTHICK_LINE_BORDER;
  61 }
  62
  63 wxStatusBarGeneric::~wxStatusBarGeneric()
  64 {
  65 #   ifdef __WXMSW__
  66         SetFont(wxNullFont);
  67 #   endif // MSW
  68
  69     if ( m_statusStrings )
  70         delete[] m_statusStrings;
  71 }
  72
  73 bool wxStatusBarGeneric::Create(wxWindow *parent,
  74                          wxWindowID id,
  75                          long style,
  76                          const wxString& name)
  77 {
  78   m_statusWidths = (int *) NULL;
  79   m_statusStrings = (wxString *) NULL;
  80   m_nFields = 0;
  81   m_borderX = wxTHICK_LINE_BORDER;
  82   m_borderY = wxTHICK_LINE_BORDER;
  83
  84   bool success = wxWindow::Create(parent, id,
  85                                   wxDefaultPosition, wxDefaultSize,
  86                                   style | wxTAB_TRAVERSAL, name);
  87
  88   // The status bar should have a themed background
  89   SetThemeEnabled( TRUE );
  90
  91   // Don't wish this to be found as a child
  92 #ifndef __WXMAC__
  93   parent->GetChildren().DeleteObject(this);
  94 #endif
  95   InitColours();
  96
  97   SetFont(m_defaultStatusBarFont);
  98
  99   // Set the height according to the font and the border size
 100   wxClientDC dc(this);
 101   dc.SetFont(GetFont());
 102
 103   wxCoord y;
 104   dc.GetTextExtent(_T("X"), NULL, &y );
 105
 106   int height = (int)( (11*y)/10 + 2*GetBorderY());
 107
 108   SetSize(-1, -1, -1, height);
 109
 110   return success;
 111 }
 112
 113 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 114 {
 115     if ( number != m_nFields )
 116     {
 117         m_nFields = number;
 118
 119         delete[] m_statusStrings;
 120         m_statusStrings = new wxString[number];
 121     }
 122
 123     SetStatusWidths(number, widths);
 124 }
 125
 126 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 127 {
 128     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 129                  _T("invalid status bar field index") );
 130
 131     m_statusStrings[number] = text;
 132
 133     wxRect rect;
 134     GetFieldRect(number, rect);
 135
 136     Refresh( TRUE, &rect );
 137 }
 138
 139 wxString wxStatusBarGeneric::GetStatusText(int n) const
 140 {
 141     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 142                  _T("invalid status bar field index") );
 143
 144     return m_statusStrings[n];
 145 }
 146
 147 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 148 {
 149     // only set status widths, when n == number of statuswindows
 150     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 151
 152     // delete the old widths in any case - this function may be used to reset
 153     // the widths to the default (all equal)
 154     delete [] m_statusWidths;
 155
 156     if ( !widths_field )
 157     {
 158         // not an error, see the comment above
 159         m_statusWidths = (int *)NULL;
 160         Refresh();
 161         return;
 162     }
 163
 164     int i;
 165
 166     // VZ: this doesn't do anything as is_variable is unused later
 167 #if 0
 168     // when one window (minimum) is variable (width <= 0)
 169     bool is_variable = FALSE;
 170     for (i = 0; i < m_nFields; i++)
 171     {
 172         if (widths_field[i] <= 0)
 173             is_variable = TRUE;
 174     }
 175 #endif // 0
 176
 177     // set widths
 178     m_statusWidths = new int[n];
 179     for (i = 0; i < m_nFields; i++)
 180     {
 181         m_statusWidths[i] = widths_field[i];
 182     }
 183     Refresh();
 184 }
 185
 186 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 187 {
 188   wxPaintDC dc(this);
 189
 190
 191   int i;
 192   if ( GetFont().Ok() )
 193     dc.SetFont(GetFont());
 194   dc.SetBackgroundMode(wxTRANSPARENT);
 195
 196 #ifdef __WXPM__
 197   wxColour                          vColor;
 198
 199   vColor.InitFromName("LIGHT GREY");
 200   ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 201 #endif
 202
 203   for ( i = 0; i < m_nFields; i ++ )
 204     DrawField(dc, i);
 205
 206 #ifdef __WXMSW__
 207   dc.SetFont(wxNullFont);
 208 #endif // MSW
 209 }
 210
 211 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 212 {
 213   int leftMargin = 2;
 214
 215   wxRect rect;
 216   GetFieldRect(i, rect);
 217
 218   wxString text(GetStatusText(i));
 219
 220   long x, y;
 221
 222   dc.GetTextExtent(text, &x, &y);
 223
 224   int xpos = rect.x + leftMargin;
 225   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 226
 227 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 228   xpos++;
 229   ypos++;
 230 #endif
 231
 232   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 233
 234   dc.DrawText(text, xpos, ypos);
 235
 236   dc.DestroyClippingRegion();
 237 }
 238
 239 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 240 {
 241   wxRect rect;
 242   GetFieldRect(i, rect);
 243
 244     // Draw border
 245     // Have grey background, plus 3-d border -
 246     // One black rectangle.
 247     // Inside this, left and top sides - dark grey. Bottom and right -
 248     // white.
 249
 250     dc.SetPen(m_hilightPen);
 251
 252 #ifndef __WXPM__
 253
 254     // Right and bottom white lines
 255     dc.DrawLine(rect.x + rect.width, rect.y,
 256                 rect.x + rect.width, rect.y + rect.height);
 257     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 258                 rect.x, rect.y + rect.height);
 259
 260     dc.SetPen(m_mediumShadowPen);
 261
 262     // Left and top grey lines
 263     dc.DrawLine(rect.x, rect.y + rect.height,
 264            rect.x, rect.y);
 265     dc.DrawLine(rect.x, rect.y,
 266         rect.x + rect.width, rect.y);
 267 #else
 268     // Right
 269     dc.DrawLine(rect.x + rect.width, rect.y,
 270                 rect.x + rect.width, rect.y + rect.height + 2);
 271     dc.SetPen(m_mediumShadowPen);
 272     dc.DrawLine(rect.x + rect.width + 1, rect.y,
 273                 rect.x + rect.width + 1, rect.y + rect.height + 2);
 274     dc.DrawLine(rect.x + rect.width + 2, rect.y,
 275                 rect.x + rect.width + 2, rect.y + rect.height + 2);
 276     // Top
 277     dc.DrawLine(rect.x + rect.width + 2, rect.y,
 278                 rect.x - 2, rect.y);
 279     dc.DrawLine(rect.x + rect.width + 1, rect.y - 1,
 280                 rect.x - 2, rect.y - 1);
 281     dc.SetPen(m_hilightPen);
 282     dc.DrawLine(rect.x + rect.width, rect.y - 2,
 283                 rect.x - 2, rect.y - 2);
 284
 285 #endif
 286
 287     DrawFieldText(dc, i);
 288 }
 289
 290   // Get the position and size of the field's internal bounding rectangle
 291 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 292 {
 293   wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 294                _T("invalid status bar field index") );
 295
 296   int width, height;
 297 #ifdef __WXPM__
 298   GetSize(&width, &height);
 299 #else
 300   GetClientSize(&width, &height);
 301 #endif
 302
 303   int i;
 304   int sum_of_nonvar = 0;
 305   int num_of_var = 0;
 306   bool do_same_width = FALSE;
 307
 308   int fieldWidth = 0;
 309   int fieldPosition = 0;
 310
 311   if (m_statusWidths)
 312   {
 313     // if sum(not variable Windows) > c_width - (20 points per variable_window)
 314     // then do_same_width = TRUE;
 315     for (i = 0; i < m_nFields; i++)
 316     {
 317        if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
 318         else num_of_var++;
 319      }
 320      if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
 321   }
 322   else do_same_width = TRUE;
 323   if (do_same_width)
 324   {
 325     for (i = 0; i < m_nFields; i++)
 326     {
 327       fieldWidth = (int)(width/m_nFields);
 328       fieldPosition = i*fieldWidth;
 329       if ( i == n )
 330         break;
 331     }
 332   }
 333   else // no_same_width
 334   {
 335     int *tempwidth = new int[m_nFields];
 336     int temppos = 0;
 337     for (i = 0; i < m_nFields; i++)
 338     {
 339       if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
 340       else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
 341     }
 342     for (i = 0; i < m_nFields; i++)
 343     {
 344         fieldWidth = tempwidth[i];
 345         fieldPosition = temppos;
 346
 347           temppos += tempwidth[i];
 348
 349         if ( i == n )
 350             break;
 351     }
 352     delete [] tempwidth;
 353   }
 354
 355     rect.x = fieldPosition + wxTHICK_LINE_BORDER;
 356     rect.y = wxTHICK_LINE_BORDER;
 357
 358     rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
 359     rect.height = height - 2 * wxTHICK_LINE_BORDER ;
 360
 361     return TRUE;
 362 }
 363
 364 // Initialize colours
 365 void wxStatusBarGeneric::InitColours()
 366 {
 367     // Shadow colours
 368 #if defined(__WIN95__)
 369     wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
 370     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 371
 372     wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
 373     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 374 #elif defined(__WXPM__)
 375     m_mediumShadowPen = wxPen("DARK GREY", 1, wxSOLID);
 376     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 377
 378     wxColour                        vColour;
 379
 380     vColour.Set(wxString("LIGHT GREY"));
 381     SetBackgroundColour(vColour);
 382     vColour.Set(wxString("BLACK"));
 383     SetForegroundColour(vColour);
 384     m_defaultStatusBarFont = *wxSMALL_FONT;
 385 #else
 386     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 387     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 388 #endif
 389
 390 #ifndef __WXPM__
 391     m_defaultStatusBarFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 392     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
 393 #endif
 394 }
 395
 396 // Responds to colour changes, and passes event on to children.
 397 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 398 {
 399     InitColours();
 400     Refresh();
 401
 402     // Propagate the event to the non-top-level children
 403     wxWindow::OnSysColourChanged(event);
 404 }
 405
 406 void wxStatusBarGeneric::SetMinHeight(int height)
 407 {
 408     // check that this min height is not less than minimal height for the
 409     // current font
 410     wxClientDC dc(this);
 411     wxCoord y;
 412     dc.GetTextExtent( _T("X"), NULL, &y );
 413
 414     if ( height > (11*y)/10 )
 415     {
 416         SetSize(-1, -1, -1, height + 2*m_borderY);
 417     }
 418 }
 419
 420 #endif // wxUSE_STATUSBAR