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