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