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_SIZE(wxStatusBarGeneric::OnSize)
  48
  49     EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
  50 END_EVENT_TABLE()
  51
  52 // Default status border dimensions
  53 #define         wxTHICK_LINE_BORDER 2
  54 #define         wxTHICK_LINE_WIDTH  1
  55
  56 void wxStatusBarGeneric::Init()
  57 {
  58   m_borderX = wxTHICK_LINE_BORDER;
  59   m_borderY = wxTHICK_LINE_BORDER;
  60 }
  61
  62 wxStatusBarGeneric::~wxStatusBarGeneric()
  63 {
  64     // VZ: what is this for? please comment...
  65 #ifdef __WXMSW__
  66     SetFont(wxNullFont);
  67 #endif // MSW
  68 }
  69
  70 bool wxStatusBarGeneric::Create(wxWindow *parent,
  71                                 wxWindowID id,
  72                                 long style,
  73                                 const wxString& name)
  74 {
  75   if ( !wxWindow::Create(parent, id,
  76                          wxDefaultPosition, wxDefaultSize,
  77                          style | wxTAB_TRAVERSAL, name) )
  78       return FALSE;
  79
  80   // The status bar should have a themed background
  81   SetThemeEnabled( TRUE );
  82
  83   // Don't wish this to be found as a child
  84 #ifndef __WXMAC__
  85   parent->GetChildren().DeleteObject(this);
  86 #endif
  87   InitColours();
  88
  89   SetFont(m_defaultStatusBarFont);
  90
  91   // Set the height according to the font and the border size
  92   wxClientDC dc(this);
  93   dc.SetFont(GetFont());
  94
  95   wxCoord y;
  96   dc.GetTextExtent(_T("X"), NULL, &y );
  97
  98   int height = (int)( (11*y)/10 + 2*GetBorderY());
  99
 100   SetSize(-1, -1, -1, height);
 101
 102   return TRUE;
 103 }
 104
 105 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 106 {
 107     wxASSERT_MSG( number >= 0, _T("negative number of fields in wxStatusBar?") );
 108
 109     int i;
 110     for(i = m_nFields; i < number; ++i)
 111         m_statusStrings.Add( wxEmptyString );
 112
 113     for (i = m_nFields - 1; i >= number; --i)
 114         m_statusStrings.RemoveAt(i);
 115
 116     m_nFields = number;
 117
 118     wxASSERT_MSG( m_nFields == (int)m_statusStrings.GetCount(),
 119                   _T("This really should never happen, can we do away with m_nFields here?") );
 120
 121     SetStatusWidths(number, widths);
 122 }
 123
 124 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 125 {
 126     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 127                  _T("invalid status bar field index") );
 128
 129     m_statusStrings[number] = text;
 130
 131     wxRect rect;
 132     GetFieldRect(number, rect);
 133
 134     Refresh( TRUE, &rect );
 135 }
 136
 137 wxString wxStatusBarGeneric::GetStatusText(int n) const
 138 {
 139     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 140                  _T("invalid status bar field index") );
 141
 142     return m_statusStrings[n];
 143 }
 144
 145 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 146 {
 147     // only set status widths, when n == number of statuswindows
 148     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 149
 150     // delete the old widths in any case - this function may be used to reset
 151     // the widths to the default (all equal)
 152     // MBN: this is incompatible with at least wxMSW and wxMAC and not
 153     //      documented, but let's keep it for now
 154     ReinitWidths();
 155
 156     // forget the old cached pixel widths
 157     m_widthsAbs.Empty();
 158
 159     if ( !widths_field )
 160     {
 161         // not an error, see the comment above
 162         Refresh();
 163         return;
 164     }
 165
 166     wxStatusBarBase::SetStatusWidths(n, widths_field);
 167 }
 168
 169 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 170 {
 171   wxPaintDC dc(this);
 172
 173
 174   int i;
 175   if ( GetFont().Ok() )
 176     dc.SetFont(GetFont());
 177   dc.SetBackgroundMode(wxTRANSPARENT);
 178
 179 #ifdef __WXPM__
 180   wxColour                          vColor;
 181
 182   vColor = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR);
 183   ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 184 #endif
 185
 186   for ( i = 0; i < m_nFields; i ++ )
 187     DrawField(dc, i);
 188
 189   // VZ: again, what is this for?
 190 #ifdef __WXMSW__
 191   dc.SetFont(wxNullFont);
 192 #endif // MSW
 193 }
 194
 195 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 196 {
 197   int leftMargin = 2;
 198
 199   wxRect rect;
 200   GetFieldRect(i, rect);
 201
 202   wxString text(GetStatusText(i));
 203
 204   long x, y;
 205
 206   dc.GetTextExtent(text, &x, &y);
 207
 208   int xpos = rect.x + leftMargin;
 209   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 210
 211 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 212   xpos++;
 213   ypos++;
 214 #endif
 215
 216   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 217
 218   dc.DrawText(text, xpos, ypos);
 219
 220   dc.DestroyClippingRegion();
 221 }
 222
 223 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 224 {
 225   wxRect rect;
 226   GetFieldRect(i, rect);
 227
 228     // Draw border
 229     // Have grey background, plus 3-d border -
 230     // One black rectangle.
 231     // Inside this, left and top sides - dark grey. Bottom and right -
 232     // white.
 233
 234     dc.SetPen(m_hilightPen);
 235
 236 #ifndef __WXPM__
 237
 238     // Right and bottom white lines
 239     dc.DrawLine(rect.x + rect.width, rect.y,
 240                 rect.x + rect.width, rect.y + rect.height);
 241     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 242                 rect.x, rect.y + rect.height);
 243
 244     dc.SetPen(m_mediumShadowPen);
 245
 246     // Left and top grey lines
 247     dc.DrawLine(rect.x, rect.y + rect.height,
 248            rect.x, rect.y);
 249     dc.DrawLine(rect.x, rect.y,
 250         rect.x + rect.width, rect.y);
 251 #else
 252
 253     dc.DrawLine(rect.x + rect.width, rect.height + 2,
 254                 rect.x, rect.height + 2);
 255     dc.DrawLine(rect.x + rect.width, rect.y,
 256                 rect.x + rect.width, rect.y + rect.height);
 257
 258     dc.SetPen(m_mediumShadowPen);
 259     dc.DrawLine(rect.x, rect.y,
 260                 rect.x + rect.width, rect.y);
 261     dc.DrawLine(rect.x, rect.y + rect.height,
 262                 rect.x, rect.y);
 263
 264 #endif
 265
 266     DrawFieldText(dc, i);
 267 }
 268
 269   // Get the position and size of the field's internal bounding rectangle
 270 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 271 {
 272     wxCHECK_MSG( (n >= 0) && (n < m_nFields), FALSE,
 273                  _T("invalid status bar field index") );
 274
 275     // FIXME: workarounds for OS/2 bugs have nothing to do here (VZ)
 276     int width, height;
 277 #ifdef __WXPM__
 278     GetSize(&width, &height);
 279 #else
 280     GetClientSize(&width, &height);
 281 #endif
 282
 283     // we cache m_widthsAbs between calls normally but it's cleared when the
 284     // status widths change so recompute it if needed
 285     if ( m_widthsAbs.IsEmpty() )
 286     {
 287         wxConstCast(this, wxStatusBarGeneric)->
 288             m_widthsAbs = CalculateAbsWidths(width);
 289     }
 290
 291     rect.x = 0;
 292     for ( int i = 0; i < n; i++ )
 293     {
 294         rect.x += m_widthsAbs[i];
 295     }
 296
 297     rect.x += m_borderX;
 298     rect.y = m_borderY;
 299
 300     rect.width = m_widthsAbs[n] - 2*m_borderX;
 301     rect.height = height - 2*m_borderY;
 302
 303     return TRUE;
 304 }
 305
 306 // Initialize colours
 307 void wxStatusBarGeneric::InitColours()
 308 {
 309     // Shadow colours
 310 #if defined(__WIN95__)
 311     wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
 312     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 313
 314     wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
 315     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 316 #elif defined(__WXPM__)
 317     m_mediumShadowPen = wxPen(wxColour(127, 127, 127), 1, wxSOLID);
 318     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 319
 320     wxColour                        vColour;
 321
 322     vColour.Set(wxString("LIGHT GREY"));
 323     SetBackgroundColour(vColour);
 324     vColour.Set(wxString("BLACK"));
 325     SetForegroundColour(vColour);
 326     m_defaultStatusBarFont = *wxSMALL_FONT;
 327 #else
 328     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 329     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 330 #endif
 331
 332 #ifndef __WXPM__
 333     m_defaultStatusBarFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 334     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
 335 #endif
 336 }
 337
 338 // Responds to colour changes, and passes event on to children.
 339 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 340 {
 341     InitColours();
 342     Refresh();
 343
 344     // Propagate the event to the non-top-level children
 345     wxWindow::OnSysColourChanged(event);
 346 }
 347
 348 void wxStatusBarGeneric::SetMinHeight(int height)
 349 {
 350     // check that this min height is not less than minimal height for the
 351     // current font
 352     wxClientDC dc(this);
 353     wxCoord y;
 354     dc.GetTextExtent( _T("X"), NULL, &y );
 355
 356     if ( height > (11*y)/10 )
 357     {
 358         SetSize(-1, -1, -1, height + 2*m_borderY);
 359     }
 360 }
 361
 362 void wxStatusBarGeneric::OnSize(wxSizeEvent& event)
 363 {
 364     // have to recompute the widths in pixels
 365     m_widthsAbs.Empty();
 366
 367     event.Skip();
 368 }
 369
 370 #endif // wxUSE_STATUSBAR
 371