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 !defined(__WIN32__) || !wxUSE_NATIVE_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 #if !defined(__WIN32__) || !wxUSE_NATIVE_STATUSBAR
  40     IMPLEMENT_DYNAMIC_CLASS(wxStatusBar, wxStatusBarGeneric)
  41 #endif // Win32 && wxUSE_NATIVE_STATUSBAR
  42
  43 BEGIN_EVENT_TABLE(wxStatusBarGeneric, wxWindow)
  44     EVT_PAINT(wxStatusBarGeneric::OnPaint)
  45     EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
  46 END_EVENT_TABLE()
  47
  48 // Default status border dimensions
  49 #define         wxTHICK_LINE_BORDER 2
  50 #define         wxTHICK_LINE_WIDTH  1
  51
  52 wxStatusBarGeneric::wxStatusBarGeneric()
  53 {
  54   m_statusWidths = (int *) NULL;
  55   m_statusStrings = (wxString *) NULL;
  56   m_nFields = 0;
  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_statusWidths )
  68         delete[] m_statusWidths;
  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   // Don't wish this to be found as a child
  89 #ifndef __WXMAC__
  90   parent->GetChildren().DeleteObject(this);
  91 #endif
  92   InitColours();
  93
  94   SetFont(m_defaultStatusBarFont);
  95
  96   return success;
  97 }
  98
  99 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 100 {
 101     if ( number != m_nFields )
 102     {
 103         m_nFields = number;
 104
 105         delete[] m_statusStrings;
 106         m_statusStrings = new wxString[number];
 107
 108 #if 0 // VZ: what is this for?
 109         int i;
 110         for (i = 0; i < number; i++)
 111             m_statusStrings[i] = "";
 112 #endif
 113     }
 114
 115     SetStatusWidths(number, widths);
 116 }
 117
 118 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 119 {
 120     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 121                  _T("invalid status bar field index") );
 122
 123     m_statusStrings[number] = text;
 124
 125     Refresh();
 126 }
 127
 128 wxString wxStatusBarGeneric::GetStatusText(int n) const
 129 {
 130     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 131                  _T("invalid status bar field index") );
 132
 133     return m_statusStrings[n];
 134 }
 135
 136 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 137 {
 138     // only set status widths, when n == number of statuswindows
 139     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 140
 141     // delete the old widths in any case - this function may be used to reset
 142     // the widths to the default (all equal)
 143     delete [] m_statusWidths;
 144
 145     if ( !widths_field )
 146     {
 147         // not an error, see the comment above
 148         m_statusWidths = (int *)NULL;
 149
 150         return;
 151     }
 152
 153     int i;
 154
 155     // VZ: this doesn't do anything as is_variable is unused later
 156 #if 0
 157     // when one window (minimum) is variable (width <= 0)
 158     bool is_variable = FALSE;
 159     for (i = 0; i < m_nFields; i++)
 160     {
 161         if (widths_field[i] <= 0)
 162             is_variable = TRUE;
 163     }
 164 #endif // 0
 165
 166     // set widths
 167     m_statusWidths = new int[n];
 168     for (i = 0; i < m_nFields; i++)
 169     {
 170         m_statusWidths[i] = widths_field[i];
 171     }
 172 }
 173
 174 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 175 {
 176   wxPaintDC dc(this);
 177
 178   int i;
 179   if ( GetFont().Ok() )
 180     dc.SetFont(GetFont());
 181   dc.SetBackgroundMode(wxTRANSPARENT);
 182   dc.SetTextForeground(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOWTEXT));
 183
 184   for ( i = 0; i < m_nFields; i ++ )
 185     DrawField(dc, i);
 186
 187 #   ifdef __WXMSW__
 188         dc.SetFont(wxNullFont);
 189 #   endif // MSW
 190 }
 191
 192 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 193 {
 194   int leftMargin = 2;
 195
 196   wxRect rect;
 197   GetFieldRect(i, rect);
 198
 199   wxString text(GetStatusText(i));
 200
 201   long x, y;
 202
 203   dc.GetTextExtent(text, &x, &y);
 204
 205   int xpos = rect.x + leftMargin;
 206   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 207
 208 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 209   xpos++;
 210   ypos++;
 211 #endif
 212
 213   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 214
 215   dc.DrawText(text, xpos, ypos);
 216
 217   dc.DestroyClippingRegion();
 218 }
 219
 220 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 221 {
 222   wxRect rect;
 223   GetFieldRect(i, rect);
 224
 225     // Draw border
 226     // Have grey background, plus 3-d border -
 227     // One black rectangle.
 228     // Inside this, left and top sides - dark grey. Bottom and right -
 229     // white.
 230
 231     dc.SetPen(m_hilightPen);
 232
 233     // Right and bottom white lines
 234     dc.DrawLine(rect.x + rect.width, rect.y,
 235                 rect.x + rect.width, rect.y + rect.height);
 236     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 237                 rect.x, rect.y + rect.height);
 238
 239     dc.SetPen(m_mediumShadowPen);
 240
 241     // Left and top grey lines
 242     dc.DrawLine(rect.x, rect.y + rect.height,
 243            rect.x, rect.y);
 244     dc.DrawLine(rect.x, rect.y,
 245         rect.x + rect.width, rect.y);
 246
 247     DrawFieldText(dc, i);
 248 }
 249
 250   // Get the position and size of the field's internal bounding rectangle
 251 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 252 {
 253   wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 254                _T("invalid status bar field index") );
 255
 256   int width, height;
 257   GetClientSize(&width, &height);
 258
 259   int i;
 260   int sum_of_nonvar = 0;
 261   int num_of_var = 0;
 262   bool do_same_width = FALSE;
 263
 264   int fieldWidth = 0;
 265   int fieldPosition = 0;
 266
 267   if (m_statusWidths)
 268   {
 269     // if sum(not variable Windows) > c_width - (20 points per variable_window)
 270     // then do_same_width = TRUE;
 271     for (i = 0; i < m_nFields; i++)
 272     {
 273        if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
 274         else num_of_var++;
 275      }
 276      if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
 277   }
 278   else do_same_width = TRUE;
 279   if (do_same_width)
 280   {
 281     for (i = 0; i < m_nFields; i++)
 282     {
 283       fieldWidth = (int)(width/m_nFields);
 284       fieldPosition = i*fieldWidth;
 285       if ( i == n )
 286         break;
 287     }
 288   }
 289   else // no_same_width
 290   {
 291     int *tempwidth = new int[m_nFields];
 292     int temppos = 0;
 293     for (i = 0; i < m_nFields; i++)
 294     {
 295       if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
 296       else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
 297     }
 298     for (i = 0; i < m_nFields; i++)
 299     {
 300         fieldWidth = tempwidth[i];
 301         fieldPosition = temppos;
 302
 303           temppos += tempwidth[i];
 304
 305         if ( i == n )
 306             break;
 307     }
 308     delete [] tempwidth;
 309   }
 310
 311     rect.x = fieldPosition + wxTHICK_LINE_BORDER;
 312     rect.y = wxTHICK_LINE_BORDER;
 313
 314     rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
 315     rect.height = height - 2 * wxTHICK_LINE_BORDER ;
 316
 317     return TRUE;
 318 }
 319
 320 // Initialize colours
 321 void wxStatusBarGeneric::InitColours()
 322 {
 323     // Shadow colours
 324 #ifndef __WIN16__
 325     wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW));
 326     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 327
 328     wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
 329     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 330 #else
 331     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 332     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 333 #endif
 334
 335     m_defaultStatusBarFont = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
 336     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 337 }
 338
 339 // Responds to colour changes, and passes event on to children.
 340 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 341 {
 342     InitColours();
 343     Refresh();
 344
 345     // Propagate the event to the non-top-level children
 346     wxWindow::OnSysColourChanged(event);
 347 }
 348
 349 void wxStatusBarGeneric::SetMinHeight(int height)
 350 {
 351     // check that this min height is not less than minimal height for the
 352     // current font
 353     wxClientDC dc(this);
 354     wxCoord y;
 355     dc.GetTextExtent( _T("X"), NULL, &y );
 356
 357     if ( height > (11*y)/10 )
 358     {
 359         SetSize(-1, -1, -1, height + 2*m_borderY);
 360     }
 361 }
 362
 363 //#endif // Win32 && wxUSE_NATIVE_STATUSBAR