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   m_nFields = number;
 102
 103   if ( m_statusWidths )
 104     delete[] m_statusWidths;
 105
 106   if ( m_statusStrings )
 107         delete[] m_statusStrings;
 108
 109   m_statusStrings = new wxString[number];
 110
 111   int i;
 112   for (i = 0; i < number; i++)
 113     m_statusStrings[i] = "";
 114
 115   if ( widths )
 116       SetStatusWidths(number, widths);
 117 }
 118
 119 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 120 {
 121   if ((number < 0) || (number >= m_nFields))
 122     return;
 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   if (n == m_nFields)
 141   {
 142     // only set status widths,
 143     // when one window (minimum) is variable (width <= 0)
 144     bool is_variable = FALSE;
 145     int i;
 146     for (i = 0; i < m_nFields; i++)
 147     {
 148       if (widths_field[i] <= 0) is_variable = TRUE;
 149     }
 150
 151     // if there are old widths, delete them
 152     if (m_statusWidths)
 153       delete [] m_statusWidths;
 154
 155     // set widths
 156     m_statusWidths = new int[n];
 157     for (i = 0; i < m_nFields; i++)
 158     {
 159       m_statusWidths[i] = widths_field[i];
 160     }
 161   }
 162 }
 163
 164 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 165 {
 166   wxPaintDC dc(this);
 167
 168   int i;
 169   if ( GetFont().Ok() )
 170     dc.SetFont(GetFont());
 171   dc.SetBackgroundMode(wxTRANSPARENT);
 172
 173   for ( i = 0; i < m_nFields; i ++ )
 174     DrawField(dc, i);
 175
 176 #   ifdef __WXMSW__
 177         dc.SetFont(wxNullFont);
 178 #   endif // MSW
 179 }
 180
 181 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 182 {
 183   int leftMargin = 2;
 184
 185   wxRect rect;
 186   GetFieldRect(i, rect);
 187
 188   wxString text(GetStatusText(i));
 189
 190   long x, y;
 191
 192   dc.GetTextExtent(text, &x, &y);
 193
 194   int xpos = rect.x + leftMargin;
 195   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 196
 197 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 198   xpos++;
 199   ypos++;
 200 #endif
 201
 202   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 203
 204   dc.DrawText(text, xpos, ypos);
 205
 206   dc.DestroyClippingRegion();
 207 }
 208
 209 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 210 {
 211   wxRect rect;
 212   GetFieldRect(i, rect);
 213
 214     // Draw border
 215     // Have grey background, plus 3-d border -
 216     // One black rectangle.
 217     // Inside this, left and top sides - dark grey. Bottom and right -
 218     // white.
 219
 220     dc.SetPen(m_hilightPen);
 221
 222     // Right and bottom white lines
 223     dc.DrawLine(rect.x + rect.width, rect.y,
 224                 rect.x + rect.width, rect.y + rect.height);
 225     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 226                 rect.x, rect.y + rect.height);
 227
 228     dc.SetPen(m_mediumShadowPen);
 229
 230     // Left and top grey lines
 231     dc.DrawLine(rect.x, rect.y + rect.height,
 232            rect.x, rect.y);
 233     dc.DrawLine(rect.x, rect.y,
 234         rect.x + rect.width, rect.y);
 235
 236     DrawFieldText(dc, i);
 237 }
 238
 239   // Get the position and size of the field's internal bounding rectangle
 240 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 241 {
 242   wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 243                _T("invalid status bar field index") );
 244
 245   int width, height;
 246   GetClientSize(&width, &height);
 247
 248   int i;
 249   int sum_of_nonvar = 0;
 250   int num_of_var = 0;
 251   bool do_same_width = FALSE;
 252
 253   int fieldWidth = 0;
 254   int fieldPosition = 0;
 255
 256   if (m_statusWidths)
 257   {
 258     // if sum(not variable Windows) > c_width - (20 points per variable_window)
 259     // then do_same_width = TRUE;
 260     for (i = 0; i < m_nFields; i++)
 261     {
 262        if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
 263         else num_of_var++;
 264      }
 265      if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
 266   }
 267   else do_same_width = TRUE;
 268   if (do_same_width)
 269   {
 270     for (i = 0; i < m_nFields; i++)
 271     {
 272       fieldWidth = (int)(width/m_nFields);
 273       fieldPosition = i*fieldWidth;
 274       if ( i == n )
 275         break;
 276     }
 277   }
 278   else // no_same_width
 279   {
 280     int *tempwidth = new int[m_nFields];
 281     int temppos = 0;
 282     for (i = 0; i < m_nFields; i++)
 283     {
 284       if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
 285       else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
 286     }
 287     for (i = 0; i < m_nFields; i++)
 288     {
 289         fieldWidth = tempwidth[i];
 290         fieldPosition = temppos;
 291
 292           temppos += tempwidth[i];
 293
 294         if ( i == n )
 295             break;
 296     }
 297     delete [] tempwidth;
 298   }
 299
 300     rect.x = fieldPosition + wxTHICK_LINE_BORDER;
 301     rect.y = wxTHICK_LINE_BORDER;
 302
 303     rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
 304     rect.height = height - 2 * wxTHICK_LINE_BORDER ;
 305
 306     return TRUE;
 307 }
 308
 309 // Initialize colours
 310 void wxStatusBarGeneric::InitColours()
 311 {
 312     // Shadow colours
 313 #if defined(__WIN95__)
 314     wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW));
 315     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 316
 317     wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
 318     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 319 #else
 320     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 321     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 322 #endif
 323
 324     m_defaultStatusBarFont = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
 325     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 326 }
 327
 328 // Responds to colour changes, and passes event on to children.
 329 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 330 {
 331     InitColours();
 332     Refresh();
 333
 334     // Propagate the event to the non-top-level children
 335     wxWindow::OnSysColourChanged(event);
 336 }
 337
 338 void wxStatusBarGeneric::SetMinHeight(int height)
 339 {
 340     // check that this min height is not less than minimal height for the
 341     // current font
 342     wxClientDC dc(this);
 343     wxCoord y;
 344     dc.GetTextExtent( _T("X"), NULL, &y );
 345
 346     if ( height > (11*y)/10 )
 347     {
 348         SetSize(-1, -1, -1, height + 2*m_borderY);
 349     }
 350 }
 351
 352 //#endif // Win32 && wxUSE_NATIVE_STATUSBAR