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     wxRect rect;
 131     GetFieldRect(number, rect);
 132     wxClientDC dc(this);
 133
 134     dc.SetBackground( wxBrush(GetBackgroundColour(), wxSOLID) );
 135     dc.SetClippingRegion( rect.x+1, rect.y+1, rect.width-1, rect.height-1 );
 136     dc.Clear();
 137     dc.DestroyClippingRegion();
 138
 139     DrawFieldText( dc, number );
 140 }
 141
 142 wxString wxStatusBarGeneric::GetStatusText(int n) const
 143 {
 144     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 145                  _T("invalid status bar field index") );
 146
 147     return m_statusStrings[n];
 148 }
 149
 150 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 151 {
 152     // only set status widths, when n == number of statuswindows
 153     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 154
 155     // delete the old widths in any case - this function may be used to reset
 156     // the widths to the default (all equal)
 157     delete [] m_statusWidths;
 158
 159     if ( !widths_field )
 160     {
 161         // not an error, see the comment above
 162         m_statusWidths = (int *)NULL;
 163         Refresh();
 164         return;
 165     }
 166
 167     int i;
 168
 169     // VZ: this doesn't do anything as is_variable is unused later
 170 #if 0
 171     // when one window (minimum) is variable (width <= 0)
 172     bool is_variable = FALSE;
 173     for (i = 0; i < m_nFields; i++)
 174     {
 175         if (widths_field[i] <= 0)
 176             is_variable = TRUE;
 177     }
 178 #endif // 0
 179
 180     // set widths
 181     m_statusWidths = new int[n];
 182     for (i = 0; i < m_nFields; i++)
 183     {
 184         m_statusWidths[i] = widths_field[i];
 185     }
 186     Refresh();
 187 }
 188
 189 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 190 {
 191   wxPaintDC dc(this);
 192
 193
 194   int i;
 195   if ( GetFont().Ok() )
 196     dc.SetFont(GetFont());
 197   dc.SetBackgroundMode(wxTRANSPARENT);
 198
 199 #ifdef __WXPM__
 200   wxColour                          vColor;
 201
 202   vColor.InitFromName("GREY");
 203   ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 204 #endif
 205
 206   for ( i = 0; i < m_nFields; i ++ )
 207     DrawField(dc, i);
 208
 209 #ifdef __WXMSW__
 210   dc.SetFont(wxNullFont);
 211 #endif // MSW
 212 }
 213
 214 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 215 {
 216   int leftMargin = 2;
 217
 218   wxRect rect;
 219   GetFieldRect(i, rect);
 220
 221   wxString text(GetStatusText(i));
 222
 223   long x, y;
 224
 225   dc.GetTextExtent(text, &x, &y);
 226
 227   int xpos = rect.x + leftMargin;
 228   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 229
 230 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 231   xpos++;
 232   ypos++;
 233 #endif
 234
 235   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 236
 237   dc.DrawText(text, xpos, ypos);
 238
 239   dc.DestroyClippingRegion();
 240 }
 241
 242 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 243 {
 244   wxRect rect;
 245   GetFieldRect(i, rect);
 246
 247     // Draw border
 248     // Have grey background, plus 3-d border -
 249     // One black rectangle.
 250     // Inside this, left and top sides - dark grey. Bottom and right -
 251     // white.
 252
 253     dc.SetPen(m_hilightPen);
 254
 255 #ifndef __WXPM__
 256
 257     // Right and bottom white lines
 258     dc.DrawLine(rect.x + rect.width, rect.y,
 259                 rect.x + rect.width, rect.y + rect.height);
 260     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 261                 rect.x, rect.y + rect.height);
 262
 263     dc.SetPen(m_mediumShadowPen);
 264
 265     // Left and top grey lines
 266     dc.DrawLine(rect.x, rect.y + rect.height,
 267            rect.x, rect.y);
 268     dc.DrawLine(rect.x, rect.y,
 269         rect.x + rect.width, rect.y);
 270 #else
 271     // Right
 272     dc.DrawLine(rect.x + rect.width, rect.y,
 273                 rect.x + rect.width, rect.y + rect.height + 2);
 274     dc.SetPen(m_mediumShadowPen);
 275     dc.DrawLine(rect.x + rect.width + 1, rect.y,
 276                 rect.x + rect.width + 1, rect.y + rect.height + 2);
 277     dc.DrawLine(rect.x + rect.width + 2, rect.y,
 278                 rect.x + rect.width + 2, rect.y + rect.height + 2);
 279     // Top
 280     dc.DrawLine(rect.x + rect.width + 2, rect.y,
 281                 rect.x - 2, rect.y);
 282     dc.DrawLine(rect.x + rect.width + 1, rect.y - 1,
 283                 rect.x - 2, rect.y - 1);
 284     dc.SetPen(m_hilightPen);
 285     dc.DrawLine(rect.x + rect.width, rect.y - 2,
 286                 rect.x - 2, rect.y - 2);
 287
 288 #endif
 289
 290     DrawFieldText(dc, i);
 291 }
 292
 293   // Get the position and size of the field's internal bounding rectangle
 294 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 295 {
 296   wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 297                _T("invalid status bar field index") );
 298
 299   int width, height;
 300 #ifdef __WXPM__
 301   GetSize(&width, &height);
 302 #else
 303   GetClientSize(&width, &height);
 304 #endif
 305
 306   int i;
 307   int sum_of_nonvar = 0;
 308   int num_of_var = 0;
 309   bool do_same_width = FALSE;
 310
 311   int fieldWidth = 0;
 312   int fieldPosition = 0;
 313
 314   if (m_statusWidths)
 315   {
 316     // if sum(not variable Windows) > c_width - (20 points per variable_window)
 317     // then do_same_width = TRUE;
 318     for (i = 0; i < m_nFields; i++)
 319     {
 320        if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
 321         else num_of_var++;
 322      }
 323      if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
 324   }
 325   else do_same_width = TRUE;
 326   if (do_same_width)
 327   {
 328     for (i = 0; i < m_nFields; i++)
 329     {
 330       fieldWidth = (int)(width/m_nFields);
 331       fieldPosition = i*fieldWidth;
 332       if ( i == n )
 333         break;
 334     }
 335   }
 336   else // no_same_width
 337   {
 338     int *tempwidth = new int[m_nFields];
 339     int temppos = 0;
 340     for (i = 0; i < m_nFields; i++)
 341     {
 342       if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
 343       else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
 344     }
 345     for (i = 0; i < m_nFields; i++)
 346     {
 347         fieldWidth = tempwidth[i];
 348         fieldPosition = temppos;
 349
 350           temppos += tempwidth[i];
 351
 352         if ( i == n )
 353             break;
 354     }
 355     delete [] tempwidth;
 356   }
 357
 358     rect.x = fieldPosition + wxTHICK_LINE_BORDER;
 359     rect.y = wxTHICK_LINE_BORDER;
 360
 361     rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
 362     rect.height = height - 2 * wxTHICK_LINE_BORDER ;
 363
 364     return TRUE;
 365 }
 366
 367 // Initialize colours
 368 void wxStatusBarGeneric::InitColours()
 369 {
 370     // Shadow colours
 371 #if defined(__WIN95__)
 372     wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW));
 373     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 374
 375     wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
 376     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 377 #elif defined(__WXPM__)
 378     m_mediumShadowPen = wxPen("LIGHT GREY", 1, wxSOLID);
 379     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 380 #else
 381     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 382     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 383 #endif
 384
 385     m_defaultStatusBarFont = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
 386     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 387 }
 388
 389 // Responds to colour changes, and passes event on to children.
 390 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 391 {
 392     InitColours();
 393     Refresh();
 394
 395     // Propagate the event to the non-top-level children
 396     wxWindow::OnSysColourChanged(event);
 397 }
 398
 399 void wxStatusBarGeneric::SetMinHeight(int height)
 400 {
 401     // check that this min height is not less than minimal height for the
 402     // current font
 403     wxClientDC dc(this);
 404     wxCoord y;
 405     dc.GetTextExtent( _T("X"), NULL, &y );
 406
 407     if ( height > (11*y)/10 )
 408     {
 409         SetSize(-1, -1, -1, height + 2*m_borderY);
 410     }
 411 }
 412
 413 #endif // wxUSE_STATUSBAR