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 // if !wxUSE_NATIVE_STATUSBAR, this is already done in common/statbar.cpp
  35 #if defined(wxUSE_NATIVE_STATUSBAR) && wxUSE_NATIVE_STATUSBAR
  36     #include "wx/generic/statusbr.h"
  37
  38     IMPLEMENT_DYNAMIC_CLASS(wxStatusBarGeneric, wxWindow)
  39 #endif // wxUSE_NATIVE_STATUSBAR
  40
  41 BEGIN_EVENT_TABLE(wxStatusBarGeneric, wxWindow)
  42     EVT_PAINT(wxStatusBarGeneric::OnPaint)
  43     EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
  44 END_EVENT_TABLE()
  45
  46 // Default status border dimensions
  47 #define         wxTHICK_LINE_BORDER 2
  48 #define         wxTHICK_LINE_WIDTH  1
  49
  50 wxStatusBarGeneric::wxStatusBarGeneric()
  51 {
  52   m_statusWidths = (int *) NULL;
  53   m_statusStrings = (wxString *) NULL;
  54   m_nFields = 0;
  55   m_borderX = wxTHICK_LINE_BORDER;
  56   m_borderY = wxTHICK_LINE_BORDER;
  57 }
  58
  59 wxStatusBarGeneric::~wxStatusBarGeneric()
  60 {
  61 #   ifdef __WXMSW__
  62         SetFont(wxNullFont);
  63 #   endif // MSW
  64
  65     if ( m_statusStrings )
  66         delete[] m_statusStrings;
  67 }
  68
  69 bool wxStatusBarGeneric::Create(wxWindow *parent,
  70                          wxWindowID id,
  71                          long style,
  72                          const wxString& name)
  73 {
  74   m_statusWidths = (int *) NULL;
  75   m_statusStrings = (wxString *) NULL;
  76   m_nFields = 0;
  77   m_borderX = wxTHICK_LINE_BORDER;
  78   m_borderY = wxTHICK_LINE_BORDER;
  79
  80   bool success = wxWindow::Create(parent, id,
  81                                   wxDefaultPosition, wxDefaultSize,
  82                                   style | wxTAB_TRAVERSAL, name);
  83
  84   // Don't wish this to be found as a child
  85 #ifndef __WXMAC__
  86   parent->GetChildren().DeleteObject(this);
  87 #endif
  88   InitColours();
  89
  90   SetFont(m_defaultStatusBarFont);
  91
  92   // Set the height according to the font and the border size
  93   wxClientDC dc(this);
  94   dc.SetFont(GetFont());
  95
  96   wxCoord y;
  97   dc.GetTextExtent(_T("X"), NULL, &y );
  98
  99   int height = (int)( (11*y)/10 + 2*GetBorderY());
 100
 101   SetSize(-1, -1, -1, height);
 102
 103   return success;
 104 }
 105
 106 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 107 {
 108     if ( number != m_nFields )
 109     {
 110         m_nFields = number;
 111
 112         delete[] m_statusStrings;
 113         m_statusStrings = new wxString[number];
 114     }
 115
 116     SetStatusWidths(number, widths);
 117 }
 118
 119 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 120 {
 121     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 122                  _T("invalid status bar field index") );
 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     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 141
 142     // delete the old widths in any case - this function may be used to reset
 143     // the widths to the default (all equal)
 144     delete [] m_statusWidths;
 145
 146     if ( !widths_field )
 147     {
 148         // not an error, see the comment above
 149         m_statusWidths = (int *)NULL;
 150
 151         return;
 152     }
 153
 154     int i;
 155
 156     // VZ: this doesn't do anything as is_variable is unused later
 157 #if 0
 158     // when one window (minimum) is variable (width <= 0)
 159     bool is_variable = FALSE;
 160     for (i = 0; i < m_nFields; i++)
 161     {
 162         if (widths_field[i] <= 0)
 163             is_variable = TRUE;
 164     }
 165 #endif // 0
 166
 167     // set widths
 168     m_statusWidths = new int[n];
 169     for (i = 0; i < m_nFields; i++)
 170     {
 171         m_statusWidths[i] = widths_field[i];
 172     }
 173 }
 174
 175 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 176 {
 177   wxPaintDC dc(this);
 178
 179
 180   int i;
 181   if ( GetFont().Ok() )
 182     dc.SetFont(GetFont());
 183   dc.SetBackgroundMode(wxTRANSPARENT);
 184
 185 #ifdef __WXPM__
 186   wxColour                          vColor;
 187
 188   vColor.InitFromName("GREY");
 189   ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 190 #endif
 191
 192   for ( i = 0; i < m_nFields; i ++ )
 193     DrawField(dc, i);
 194
 195 #ifdef __WXMSW__
 196   dc.SetFont(wxNullFont);
 197 #endif // MSW
 198 }
 199
 200 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 201 {
 202   int leftMargin = 2;
 203
 204   wxRect rect;
 205   GetFieldRect(i, rect);
 206
 207   wxString text(GetStatusText(i));
 208
 209   long x, y;
 210
 211   dc.GetTextExtent(text, &x, &y);
 212
 213   int xpos = rect.x + leftMargin;
 214   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 215
 216 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 217   xpos++;
 218   ypos++;
 219 #endif
 220
 221   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 222
 223   dc.DrawText(text, xpos, ypos);
 224
 225   dc.DestroyClippingRegion();
 226 }
 227
 228 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 229 {
 230   wxRect rect;
 231   GetFieldRect(i, rect);
 232
 233     // Draw border
 234     // Have grey background, plus 3-d border -
 235     // One black rectangle.
 236     // Inside this, left and top sides - dark grey. Bottom and right -
 237     // white.
 238
 239     dc.SetPen(m_hilightPen);
 240
 241 #ifndef __WXPM__
 242
 243     // Right and bottom white lines
 244     dc.DrawLine(rect.x + rect.width, rect.y,
 245                 rect.x + rect.width, rect.y + rect.height);
 246     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 247                 rect.x, rect.y + rect.height);
 248
 249     dc.SetPen(m_mediumShadowPen);
 250
 251     // Left and top grey lines
 252     dc.DrawLine(rect.x, rect.y + rect.height,
 253            rect.x, rect.y);
 254     dc.DrawLine(rect.x, rect.y,
 255         rect.x + rect.width, rect.y);
 256 #else
 257     // Right
 258     dc.DrawLine(rect.x + rect.width, rect.y,
 259                 rect.x + rect.width, rect.y + rect.height + 2);
 260     dc.SetPen(m_mediumShadowPen);
 261     dc.DrawLine(rect.x + rect.width + 1, rect.y,
 262                 rect.x + rect.width + 1, rect.y + rect.height + 2);
 263     dc.DrawLine(rect.x + rect.width + 2, rect.y,
 264                 rect.x + rect.width + 2, rect.y + rect.height + 2);
 265     // Top
 266     dc.DrawLine(rect.x + rect.width + 2, rect.y,
 267                 rect.x - 2, rect.y);
 268     dc.DrawLine(rect.x + rect.width + 1, rect.y - 1,
 269                 rect.x - 2, rect.y - 1);
 270     dc.SetPen(m_hilightPen);
 271     dc.DrawLine(rect.x + rect.width, rect.y - 2,
 272                 rect.x - 2, rect.y - 2);
 273
 274 #endif
 275
 276     DrawFieldText(dc, i);
 277 }
 278
 279   // Get the position and size of the field's internal bounding rectangle
 280 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 281 {
 282   wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 283                _T("invalid status bar field index") );
 284
 285   int width, height;
 286 #ifdef __WXPM__
 287   GetSize(&width, &height);
 288 #else
 289   GetClientSize(&width, &height);
 290 #endif
 291
 292   int i;
 293   int sum_of_nonvar = 0;
 294   int num_of_var = 0;
 295   bool do_same_width = FALSE;
 296
 297   int fieldWidth = 0;
 298   int fieldPosition = 0;
 299
 300   if (m_statusWidths)
 301   {
 302     // if sum(not variable Windows) > c_width - (20 points per variable_window)
 303     // then do_same_width = TRUE;
 304     for (i = 0; i < m_nFields; i++)
 305     {
 306        if (m_statusWidths[i] > 0) sum_of_nonvar += m_statusWidths[i];
 307         else num_of_var++;
 308      }
 309      if (sum_of_nonvar > (width - 20*num_of_var)) do_same_width = TRUE;
 310   }
 311   else do_same_width = TRUE;
 312   if (do_same_width)
 313   {
 314     for (i = 0; i < m_nFields; i++)
 315     {
 316       fieldWidth = (int)(width/m_nFields);
 317       fieldPosition = i*fieldWidth;
 318       if ( i == n )
 319         break;
 320     }
 321   }
 322   else // no_same_width
 323   {
 324     int *tempwidth = new int[m_nFields];
 325     int temppos = 0;
 326     for (i = 0; i < m_nFields; i++)
 327     {
 328       if (m_statusWidths[i] > 0) tempwidth[i] = m_statusWidths[i];
 329       else tempwidth[i] = (width - sum_of_nonvar) / num_of_var;
 330     }
 331     for (i = 0; i < m_nFields; i++)
 332     {
 333         fieldWidth = tempwidth[i];
 334         fieldPosition = temppos;
 335
 336           temppos += tempwidth[i];
 337
 338         if ( i == n )
 339             break;
 340     }
 341     delete [] tempwidth;
 342   }
 343
 344     rect.x = fieldPosition + wxTHICK_LINE_BORDER;
 345     rect.y = wxTHICK_LINE_BORDER;
 346
 347     rect.width = fieldWidth - 2 * wxTHICK_LINE_BORDER ;
 348     rect.height = height - 2 * wxTHICK_LINE_BORDER ;
 349
 350     return TRUE;
 351 }
 352
 353 // Initialize colours
 354 void wxStatusBarGeneric::InitColours()
 355 {
 356     // Shadow colours
 357 #if defined(__WIN95__)
 358     wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW));
 359     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 360
 361     wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT));
 362     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 363 #elif defined(__WXPM__)
 364     m_mediumShadowPen = wxPen("LIGHT GREY", 1, wxSOLID);
 365     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 366 #else
 367     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 368     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 369 #endif
 370
 371     m_defaultStatusBarFont = wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT);
 372     SetBackgroundColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE));
 373 }
 374
 375 // Responds to colour changes, and passes event on to children.
 376 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 377 {
 378     InitColours();
 379     Refresh();
 380
 381     // Propagate the event to the non-top-level children
 382     wxWindow::OnSysColourChanged(event);
 383 }
 384
 385 void wxStatusBarGeneric::SetMinHeight(int height)
 386 {
 387     // check that this min height is not less than minimal height for the
 388     // current font
 389     wxClientDC dc(this);
 390     wxCoord y;
 391     dc.GetTextExtent( _T("X"), NULL, &y );
 392
 393     if ( height > (11*y)/10 )
 394     {
 395         SetSize(-1, -1, -1, height + 2*m_borderY);
 396     }
 397 }
 398
 399 #endif // wxUSE_STATUSBAR