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 // we only have to do it here when we use wxStatusBarGeneric in addition to the
  35 // standard wxStatusBar class, if wxStatusBarGeneric is the same as
  36 // wxStatusBar, then the corresponding IMPLEMENT_DYNAMIC_CLASS is already in
  37 // common/statbar.cpp
  38 #if defined(__WXMAC__) || \
  39     (defined(wxUSE_NATIVE_STATUSBAR) && wxUSE_NATIVE_STATUSBAR)
  40     #include "wx/generic/statusbr.h"
  41
  42     IMPLEMENT_DYNAMIC_CLASS(wxStatusBarGeneric, wxWindow)
  43 #endif // wxUSE_NATIVE_STATUSBAR
  44
  45 BEGIN_EVENT_TABLE(wxStatusBarGeneric, wxWindow)
  46     EVT_PAINT(wxStatusBarGeneric::OnPaint)
  47     EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
  48 END_EVENT_TABLE()
  49
  50 // Default status border dimensions
  51 #define         wxTHICK_LINE_BORDER 2
  52 #define         wxTHICK_LINE_WIDTH  1
  53
  54 wxStatusBarGeneric::wxStatusBarGeneric()
  55 {
  56   m_statusWidths = (int *) NULL;
  57   m_statusStrings = (wxString *) NULL;
  58   m_nFields = 0;
  59   m_borderX = wxTHICK_LINE_BORDER;
  60   m_borderY = wxTHICK_LINE_BORDER;
  61 }
  62
  63 wxStatusBarGeneric::~wxStatusBarGeneric()
  64 {
  65 #   ifdef __WXMSW__
  66         SetFont(wxNullFont);
  67 #   endif // MSW
  68
  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   // Set the height according to the font and the border size
  97   wxClientDC dc(this);
  98   dc.SetFont(GetFont());
  99
 100   wxCoord y;
 101   dc.GetTextExtent(_T("X"), NULL, &y );
 102
 103   int height = (int)( (11*y)/10 + 2*GetBorderY());
 104
 105   SetSize(-1, -1, -1, height);
 106
 107   return success;
 108 }
 109
 110 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 111 {
 112     if ( number != m_nFields )
 113     {
 114         m_nFields = number;
 115
 116         delete[] m_statusStrings;
 117         m_statusStrings = new wxString[number];
 118     }
 119
 120     SetStatusWidths(number, widths);
 121 }
 122
 123 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 124 {
 125     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 126                  _T("invalid status bar field index") );
 127
 128     m_statusStrings[number] = text;
 129
 130 #ifdef __WXMAC__
 131     int major,minor;
 132     wxGetOsVersion( &major, &minor );
 133
 134     if (major >= 10)
 135     {
 136         Refresh();
 137         return;
 138     }
 139 #endif
 140
 141     wxRect rect;
 142     GetFieldRect(number, rect);
 143     wxClientDC dc(this);
 144
 145     dc.SetBackground( wxBrush(GetBackgroundColour(), wxSOLID) );
 146     dc.SetClippingRegion( rect.x+1, rect.y+1, rect.width-1, rect.height-1 );
 147     dc.Clear();
 148     dc.DestroyClippingRegion();
 149     dc.SetFont(GetFont());
 150     DrawFieldText( dc, number );
 151 }
 152
 153 wxString wxStatusBarGeneric::GetStatusText(int n) const
 154 {
 155     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 156                  _T("invalid status bar field index") );
 157
 158     return m_statusStrings[n];
 159 }
 160
 161 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 162 {
 163     // only set status widths, when n == number of statuswindows
 164     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 165
 166     // delete the old widths in any case - this function may be used to reset
 167     // the widths to the default (all equal)
 168     delete [] m_statusWidths;
 169
 170     if ( !widths_field )
 171     {
 172         // not an error, see the comment above
 173         m_statusWidths = (int *)NULL;
 174         Refresh();
 175         return;
 176     }
 177
 178     int i;
 179
 180     // VZ: this doesn't do anything as is_variable is unused later
 181 #if 0
 182     // when one window (minimum) is variable (width <= 0)
 183     bool is_variable = FALSE;
 184     for (i = 0; i < m_nFields; i++)
 185     {
 186         if (widths_field[i] <= 0)
 187             is_variable = TRUE;
 188     }
 189 #endif // 0
 190
 191     // set widths
 192     m_statusWidths = new int[n];
 193     for (i = 0; i < m_nFields; i++)
 194     {
 195         m_statusWidths[i] = widths_field[i];
 196     }
 197     Refresh();
 198 }
 199
 200 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 201 {
 202   wxPaintDC dc(this);
 203
 204
 205   int i;
 206   if ( GetFont().Ok() )
 207     dc.SetFont(GetFont());
 208   dc.SetBackgroundMode(wxTRANSPARENT);
 209
 210 #ifdef __WXPM__
 211   wxColour                          vColor;
 212
 213   vColor.InitFromName("LIGHT GREY");
 214   ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 215 #endif
 216
 217   for ( i = 0; i < m_nFields; i ++ )
 218     DrawField(dc, i);
 219
 220 #ifdef __WXMSW__
 221   dc.SetFont(wxNullFont);
 222 #endif // MSW
 223 }
 224
 225 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 226 {
 227   int leftMargin = 2;
 228
 229   wxRect rect;
 230   GetFieldRect(i, rect);
 231
 232   wxString text(GetStatusText(i));
 233
 234   long x, y;
 235
 236   dc.GetTextExtent(text, &x, &y);
 237
 238   int xpos = rect.x + leftMargin;
 239   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 240
 241 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 242   xpos++;
 243   ypos++;
 244 #endif
 245
 246   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 247
 248   dc.DrawText(text, xpos, ypos);
 249
 250   dc.DestroyClippingRegion();
 251 }
 252
 253 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 254 {
 255   wxRect rect;
 256   GetFieldRect(i, rect);
 257
 258     // Draw border
 259     // Have grey background, plus 3-d border -
 260     // One black rectangle.
 261     // Inside this, left and top sides - dark grey. Bottom and right -
 262     // white.
 263
 264     dc.SetPen(m_hilightPen);
 265
 266 #ifndef __WXPM__
 267
 268     // Right and bottom white lines
 269     dc.DrawLine(rect.x + rect.width, rect.y,
 270                 rect.x + rect.width, rect.y + rect.height);
 271     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 272                 rect.x, rect.y + rect.height);
 273
 274     dc.SetPen(m_mediumShadowPen);
 275
 276     // Left and top grey lines
 277     dc.DrawLine(rect.x, rect.y + rect.height,
 278            rect.x, rect.y);
 279     dc.DrawLine(rect.x, rect.y,
 280         rect.x + rect.width, rect.y);
 281 #else
 282     // Right
 283     dc.DrawLine(rect.x + rect.width, rect.y,
 284                 rect.x + rect.width, rect.y + rect.height + 2);
 285     dc.SetPen(m_mediumShadowPen);
 286     dc.DrawLine(rect.x + rect.width + 1, rect.y,
 287                 rect.x + rect.width + 1, rect.y + rect.height + 2);
 288     dc.DrawLine(rect.x + rect.width + 2, rect.y,
 289                 rect.x + rect.width + 2, rect.y + rect.height + 2);
 290     // Top
 291     dc.DrawLine(rect.x + rect.width + 2, rect.y,
 292                 rect.x - 2, rect.y);
 293     dc.DrawLine(rect.x + rect.width + 1, rect.y - 1,
 294                 rect.x - 2, rect.y - 1);
 295     dc.SetPen(m_hilightPen);
 296     dc.DrawLine(rect.x + rect.width, rect.y - 2,
 297                 rect.x - 2, rect.y - 2);
 298
 299 #endif
 300
 301     DrawFieldText(dc, i);
 302 }
 303
 304   // Get the position and size of the field's internal bounding rectangle
 305 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 306 {
 307   wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 308                _T("invalid status bar field index") );
 309
 310   int width, height;
 311 #ifdef __WXPM__
 312   GetSize(&width, &height);
 313 #else
 314   GetClientSize(&width, &height);
 315 #endif
 316
 317   int i;
 318   int sum_of_nonvar = 0;
 319   int num_of_var = 0;
 320   bool do_same_width = FALSE;
 321
 322   int fieldWidth = 0;
 323   int fieldPosition = 0;
 324
 325   if (m_statusWidths)
 326   {
 327     // if sum(not variable Windows) > c_width - (20 points per variable_window)
 328     // then do_same_width = TRUE;
 329     for (i = 0; i < m_nFields; i++)
 330     {
 331        if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
 332         else num_of_var++;
 333      }
 334      if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
 335   }
 336   else do_same_width = TRUE;
 337   if (do_same_width)
 338   {
 339     for (i = 0; i < m_nFields; i++)
 340     {
 341       fieldWidth = (int)(width/m_nFields);
 342       fieldPosition = i*fieldWidth;
 343       if ( i == n )
 344         break;
 345     }
 346   }
 347   else // no_same_width
 348   {
 349     int *tempwidth = new int[m_nFields];
 350     int temppos = 0;
 351     for (i = 0; i < m_nFields; i++)
 352     {
 353       if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
 354       else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
 355     }
 356     for (i = 0; i < m_nFields; i++)
 357     {
 358         fieldWidth = tempwidth[i];
 359         fieldPosition = temppos;
 360
 361           temppos += tempwidth[i];
 362
 363         if ( i == n )
 364             break;
 365     }
 366     delete [] tempwidth;
 367   }
 368
 369     rect.x = fieldPosition + wxTHICK_LINE_BORDER;
 370     rect.y = wxTHICK_LINE_BORDER;
 371
 372     rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
 373     rect.height = height - 2 * wxTHICK_LINE_BORDER ;
 374
 375     return TRUE;
 376 }
 377
 378 // Initialize colours
 379 void wxStatusBarGeneric::InitColours()
 380 {
 381     // Shadow colours
 382 #if defined(__WIN95__)
 383     wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
 384     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 385
 386     wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
 387     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 388 #elif defined(__WXPM__)
 389     m_mediumShadowPen = wxPen("DARK GREY", 1, wxSOLID);
 390     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 391
 392     wxColour                        vColour;
 393
 394     vColour.Set(wxString("LIGHT GREY"));
 395     SetBackgroundColour(vColour);
 396     vColour.Set(wxString("BLACK"));
 397     SetForegroundColour(vColour);
 398     m_defaultStatusBarFont = *wxSMALL_FONT;
 399 #else
 400     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 401     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 402 #endif
 403
 404 #ifndef __WXPM__
 405     m_defaultStatusBarFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 406     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
 407 #endif
 408 }
 409
 410 // Responds to colour changes, and passes event on to children.
 411 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 412 {
 413     InitColours();
 414     Refresh();
 415
 416     // Propagate the event to the non-top-level children
 417     wxWindow::OnSysColourChanged(event);
 418 }
 419
 420 void wxStatusBarGeneric::SetMinHeight(int height)
 421 {
 422     // check that this min height is not less than minimal height for the
 423     // current font
 424     wxClientDC dc(this);
 425     wxCoord y;
 426     dc.GetTextExtent( _T("X"), NULL, &y );
 427
 428     if ( height > (11*y)/10 )
 429     {
 430         SetSize(-1, -1, -1, height + 2*m_borderY);
 431     }
 432 }
 433
 434 #endif // wxUSE_STATUSBAR