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   m_themeEnabled = TRUE;
  84
  85   bool success = wxWindow::Create(parent, id,
  86                                   wxDefaultPosition, wxDefaultSize,
  87                                   style | wxTAB_TRAVERSAL, name);
  88
  89   // Don't wish this to be found as a child
  90 #ifndef __WXMAC__
  91   parent->GetChildren().DeleteObject(this);
  92 #endif
  93   InitColours();
  94
  95   SetFont(m_defaultStatusBarFont);
  96
  97   return success;
  98 }
  99
 100 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 101 {
 102     if ( number != m_nFields )
 103     {
 104         m_nFields = number;
 105
 106         delete[] m_statusStrings;
 107         m_statusStrings = new wxString[number];
 108
 109 #if 0 // VZ: what is this for?
 110         int i;
 111         for (i = 0; i < number; i++)
 112             m_statusStrings[i] = "";
 113 #endif
 114     }
 115
 116     SetStatusWidths(number, widths);
 117 }
 118
 119 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 120 {
 121     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 122                  _T("invalid status bar field index") );
 123
 124     m_statusStrings[number] = text;
 125
 126     Refresh();
 127 }
 128
 129 wxString wxStatusBarGeneric::GetStatusText(int n) const
 130 {
 131     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 132                  _T("invalid status bar field index") );
 133
 134     return m_statusStrings[n];
 135 }
 136
 137 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 138 {
 139     // only set status widths, when n == number of statuswindows
 140     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 141
 142     // delete the old widths in any case - this function may be used to reset
 143     // the widths to the default (all equal)
 144     delete [] m_statusWidths;
 145
 146     if ( !widths_field )
 147     {
 148         // not an error, see the comment above
 149         m_statusWidths = (int *)NULL;
 150
 151         return;
 152     }
 153
 154     int i;
 155
 156     // VZ: this doesn't do anything as is_variable is unused later
 157 #if 0
 158     // when one window (minimum) is variable (width <= 0)
 159     bool is_variable = FALSE;
 160     for (i = 0; i < m_nFields; i++)
 161     {
 162         if (widths_field[i] <= 0)
 163             is_variable = TRUE;
 164     }
 165 #endif // 0
 166
 167     // set widths
 168     m_statusWidths = new int[n];
 169     for (i = 0; i < m_nFields; i++)
 170     {
 171         m_statusWidths[i] = widths_field[i];
 172     }
 173 }
 174
 175 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 176 {
 177   wxPaintDC dc(this);
 178
 179   int i;
 180   if ( GetFont().Ok() )
 181     dc.SetFont(GetFont());
 182   dc.SetBackgroundMode(wxTRANSPARENT);
 183   dc.SetTextForeground(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_WINDOWTEXT));
 184
 185   for ( i = 0; i < m_nFields; i ++ )
 186     DrawField(dc, i);
 187
 188 #   ifdef __WXMSW__
 189         dc.SetFont(wxNullFont);
 190 #   endif // MSW
 191 }
 192
 193 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 194 {
 195   int leftMargin = 2;
 196
 197   wxRect rect;
 198   GetFieldRect(i, rect);
 199
 200   wxString text(GetStatusText(i));
 201
 202   long x, y;
 203
 204   dc.GetTextExtent(text, &x, &y);
 205
 206   int xpos = rect.x + leftMargin;
 207   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 208
 209 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 210   xpos++;
 211   ypos++;
 212 #endif
 213
 214   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 215
 216   dc.DrawText(text, xpos, ypos);
 217
 218   dc.DestroyClippingRegion();
 219 }
 220
 221 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 222 {
 223   wxRect rect;
 224   GetFieldRect(i, rect);
 225
 226     // Draw border
 227     // Have grey background, plus 3-d border -
 228     // One black rectangle.
 229     // Inside this, left and top sides - dark grey. Bottom and right -
 230     // white.
 231
 232     dc.SetPen(m_hilightPen);
 233
 234     // Right and bottom white lines
 235     dc.DrawLine(rect.x + rect.width, rect.y,
 236                 rect.x + rect.width, rect.y + rect.height);
 237     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 238                 rect.x, rect.y + rect.height);
 239
 240     dc.SetPen(m_mediumShadowPen);
 241
 242     // Left and top grey lines
 243     dc.DrawLine(rect.x, rect.y + rect.height,
 244            rect.x, rect.y);
 245     dc.DrawLine(rect.x, rect.y,
 246         rect.x + rect.width, rect.y);
 247
 248     DrawFieldText(dc, i);
 249 }
 250
 251   // Get the position and size of the field's internal bounding rectangle
 252 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 253 {
 254   wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 255                _T("invalid status bar field index") );
 256
 257   int width, height;
 258   GetClientSize(&width, &height);
 259
 260   int i;
 261   int sum_of_nonvar = 0;
 262   int num_of_var = 0;
 263   bool do_same_width = FALSE;
 264
 265   int fieldWidth = 0;
 266   int fieldPosition = 0;
 267
 268   if (m_statusWidths)
 269   {
 270     // if sum(not variable Windows) > c_width - (20 points per variable_window)
 271     // then do_same_width = TRUE;
 272     for (i = 0; i < m_nFields; i++)
 273     {
 274        if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
 275         else num_of_var++;
 276      }
 277      if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
 278   }
 279   else do_same_width = TRUE;
 280   if (do_same_width)
 281   {
 282     for (i = 0; i < m_nFields; i++)
 283     {
 284       fieldWidth = (int)(width/m_nFields);
 285       fieldPosition = i*fieldWidth;
 286       if ( i == n )
 287         break;
 288     }
 289   }
 290   else // no_same_width
 291   {
 292     int *tempwidth = new int[m_nFields];
 293     int temppos = 0;
 294     for (i = 0; i < m_nFields; i++)
 295     {
 296       if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
 297       else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
 298     }
 299     for (i = 0; i < m_nFields; i++)
 300     {
 301         fieldWidth = tempwidth[i];
 302         fieldPosition = temppos;
 303
 304           temppos += tempwidth[i];
 305
 306         if ( i == n )
 307             break;
 308     }
 309     delete [] tempwidth;
 310   }
 311
 312     rect.x = fieldPosition + wxTHICK_LINE_BORDER;
 313     rect.y = wxTHICK_LINE_BORDER;
 314
 315     rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
 316     rect.height = height - 2 * wxTHICK_LINE_BORDER ;
 317
 318     return TRUE;
 319 }
 320
 321 // Initialize colours
 322 void wxStatusBarGeneric::InitColours()
 323 {
 324     // Shadow colours
 325 #ifndef __WIN16__
 326     wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW));
 327     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 328
 329     wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
 330     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 331 #else
 332     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 333     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 334 #endif
 335
 336     m_defaultStatusBarFont = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
 337     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 338 }
 339
 340 // Responds to colour changes, and passes event on to children.
 341 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 342 {
 343     InitColours();
 344     Refresh();
 345
 346     // Propagate the event to the non-top-level children
 347     wxWindow::OnSysColourChanged(event);
 348 }
 349
 350 void wxStatusBarGeneric::SetMinHeight(int height)
 351 {
 352     // check that this min height is not less than minimal height for the
 353     // current font
 354     wxClientDC dc(this);
 355     wxCoord y;
 356     dc.GetTextExtent( _T("X"), NULL, &y );
 357
 358     if ( height > (11*y)/10 )
 359     {
 360         SetSize(-1, -1, -1, height + 2*m_borderY);
 361     }
 362 }
 363
 364 //#endif // Win32 && wxUSE_NATIVE_STATUSBAR