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
 179   int i;
 180   if ( GetFont().Ok() )
 181     dc.SetFont(GetFont());
 182   dc.SetBackgroundMode(wxTRANSPARENT);
 183
 184 #ifdef __WXPM__
 185   ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, CLR_GREEN);
 186 #endif
 187
 188   for ( i = 0; i < m_nFields; i ++ )
 189     DrawField(dc, i);
 190
 191 #ifdef __WXMSW__
 192   dc.SetFont(wxNullFont);
 193 #endif // MSW
 194 }
 195
 196 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 197 {
 198   int leftMargin = 2;
 199
 200   wxRect rect;
 201   GetFieldRect(i, rect);
 202
 203   wxString text(GetStatusText(i));
 204
 205   long x, y;
 206
 207 #if defined(__WXPM__)
 208   long decsent;
 209
 210   dc.GetTextExtent(text, &x, &y,&decsent);
 211   int xpos = rect.x + leftMargin;
 212   int ypos = (int) (((rect.height - y + 1) / 2 ) + rect.y + decsent ) ;
 213
 214 #else
 215   dc.GetTextExtent(text, &x, &y);
 216
 217   int xpos = rect.x + leftMargin;
 218   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 219
 220 #endif // __WXPM__
 221
 222 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 223   xpos++;
 224   ypos++;
 225 #endif
 226
 227   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 228
 229   dc.DrawText(text, xpos, ypos);
 230
 231   dc.DestroyClippingRegion();
 232 }
 233
 234 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 235 {
 236   wxRect rect;
 237   GetFieldRect(i, rect);
 238
 239     // Draw border
 240     // Have grey background, plus 3-d border -
 241     // One black rectangle.
 242     // Inside this, left and top sides - dark grey. Bottom and right -
 243     // white.
 244
 245     dc.SetPen(m_hilightPen);
 246
 247     // Right and bottom white lines
 248     dc.DrawLine(rect.x + rect.width, rect.y,
 249                 rect.x + rect.width, rect.y + rect.height);
 250     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 251                 rect.x, rect.y + rect.height);
 252
 253     dc.SetPen(m_mediumShadowPen);
 254
 255     // Left and top grey lines
 256     dc.DrawLine(rect.x, rect.y + rect.height,
 257            rect.x, rect.y);
 258     dc.DrawLine(rect.x, rect.y,
 259         rect.x + rect.width, rect.y);
 260
 261     DrawFieldText(dc, i);
 262 }
 263
 264   // Get the position and size of the field's internal bounding rectangle
 265 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 266 {
 267   wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 268                _T("invalid status bar field index") );
 269
 270   int width, height;
 271 #ifdef __WXPM__
 272   GetSize(&width, &height);
 273 #else
 274   GetClientSize(&width, &height);
 275 #endif
 276
 277   int i;
 278   int sum_of_nonvar = 0;
 279   int num_of_var = 0;
 280   bool do_same_width = FALSE;
 281
 282   int fieldWidth = 0;
 283   int fieldPosition = 0;
 284
 285   if (m_statusWidths)
 286   {
 287     // if sum(not variable Windows) > c_width - (20 points per variable_window)
 288     // then do_same_width = TRUE;
 289     for (i = 0; i < m_nFields; i++)
 290     {
 291        if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
 292         else num_of_var++;
 293      }
 294      if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
 295   }
 296   else do_same_width = TRUE;
 297   if (do_same_width)
 298   {
 299     for (i = 0; i < m_nFields; i++)
 300     {
 301       fieldWidth = (int)(width/m_nFields);
 302       fieldPosition = i*fieldWidth;
 303       if ( i == n )
 304         break;
 305     }
 306   }
 307   else // no_same_width
 308   {
 309     int *tempwidth = new int[m_nFields];
 310     int temppos = 0;
 311     for (i = 0; i < m_nFields; i++)
 312     {
 313       if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
 314       else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
 315     }
 316     for (i = 0; i < m_nFields; i++)
 317     {
 318         fieldWidth = tempwidth[i];
 319         fieldPosition = temppos;
 320
 321           temppos += tempwidth[i];
 322
 323         if ( i == n )
 324             break;
 325     }
 326     delete [] tempwidth;
 327   }
 328
 329     rect.x = fieldPosition + wxTHICK_LINE_BORDER;
 330     rect.y = wxTHICK_LINE_BORDER;
 331
 332     rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
 333     rect.height = height - 2 * wxTHICK_LINE_BORDER ;
 334
 335     return TRUE;
 336 }
 337
 338 // Initialize colours
 339 void wxStatusBarGeneric::InitColours()
 340 {
 341     // Shadow colours
 342 #if defined(__WIN95__)
 343     wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW));
 344     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 345
 346     wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
 347     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 348 #else
 349     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 350     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 351 #endif
 352
 353     m_defaultStatusBarFont = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
 354     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 355 }
 356
 357 // Responds to colour changes, and passes event on to children.
 358 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 359 {
 360     InitColours();
 361     Refresh();
 362
 363     // Propagate the event to the non-top-level children
 364     wxWindow::OnSysColourChanged(event);
 365 }
 366
 367 void wxStatusBarGeneric::SetMinHeight(int height)
 368 {
 369     // check that this min height is not less than minimal height for the
 370     // current font
 371     wxClientDC dc(this);
 372     wxCoord y;
 373     dc.GetTextExtent( _T("X"), NULL, &y );
 374
 375     if ( height > (11*y)/10 )
 376     {
 377         SetSize(-1, -1, -1, height + 2*m_borderY);
 378     }
 379 }
 380
 381 //#endif // Win32 && wxUSE_NATIVE_STATUSBAR