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
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  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 #ifdef __WXGTK20__
  33 #include "wx/gtk/private.h"
  34 #include "wx/gtk/win_gtk.h"
  35 #endif
  36
  37 #include "wx/statusbr.h"
  38
  39 // we only have to do it here when we use wxStatusBarGeneric in addition to the
  40 // standard wxStatusBar class, if wxStatusBarGeneric is the same as
  41 // wxStatusBar, then the corresponding IMPLEMENT_DYNAMIC_CLASS is already in
  42 // common/statbar.cpp
  43 #if defined(__WXMAC__) || \
  44     (defined(wxUSE_NATIVE_STATUSBAR) && wxUSE_NATIVE_STATUSBAR)
  45     #include "wx/generic/statusbr.h"
  46
  47     IMPLEMENT_DYNAMIC_CLASS(wxStatusBarGeneric, wxWindow)
  48 #endif // wxUSE_NATIVE_STATUSBAR
  49
  50 BEGIN_EVENT_TABLE(wxStatusBarGeneric, wxWindow)
  51     EVT_PAINT(wxStatusBarGeneric::OnPaint)
  52     EVT_LEFT_DOWN(wxStatusBarGeneric::OnLeftDown)
  53     EVT_RIGHT_DOWN(wxStatusBarGeneric::OnRightDown)
  54     EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
  55 END_EVENT_TABLE()
  56
  57 // Default status border dimensions
  58 #define         wxTHICK_LINE_BORDER 2
  59 #define         wxTHICK_LINE_WIDTH  1
  60
  61 void wxStatusBarGeneric::Init()
  62 {
  63   m_borderX = wxTHICK_LINE_BORDER;
  64   m_borderY = wxTHICK_LINE_BORDER;
  65 }
  66
  67 wxStatusBarGeneric::~wxStatusBarGeneric()
  68 {
  69     // VZ: what is this for? please comment...
  70 #ifdef __WXMSW__
  71     // JACS: commenting out since it causes an assert
  72     // and there seems no reason for it.
  73     // SetFont(wxNullFont);
  74 #endif // MSW
  75 }
  76
  77 bool wxStatusBarGeneric::Create(wxWindow *parent,
  78                                 wxWindowID id,
  79                                 long style,
  80                                 const wxString& name)
  81 {
  82   if ( !wxWindow::Create(parent, id,
  83                          wxDefaultPosition, wxDefaultSize,
  84                          style | wxTAB_TRAVERSAL, name) )
  85       return false;
  86
  87   // The status bar should have a themed background
  88   SetThemeEnabled( true );
  89
  90   // Don't wish this to be found as a child
  91   // JACS: this is not true for the Windows native version,
  92   // so why should it be true here? This control can be used
  93   // as a child of an arbitrary window, not just for frames.
  94   // Commenting out.
  95 #ifndef __WXMAC__
  96   // parent->GetChildren().DeleteObject(this);
  97 #endif
  98   InitColours();
  99
 100 #ifdef __WXPM__
 101   SetFont(*wxSMALL_FONT);
 102 #endif
 103
 104   // Set the height according to the font and the border size
 105   wxClientDC dc(this);
 106   dc.SetFont(GetFont());
 107
 108   wxCoord y;
 109   dc.GetTextExtent(_T("X"), NULL, &y );
 110
 111   int height = (int)( (11*y)/10 + 2*GetBorderY());
 112
 113   SetSize(wxDefaultCoord, wxDefaultCoord, wxDefaultCoord, height);
 114
 115   SetFieldsCount(1);
 116
 117   return true;
 118 }
 119
 120
 121 wxSize wxStatusBarGeneric::DoGetBestSize() const
 122 {
 123     int width, height;
 124
 125     // best width is the width of the parent
 126     GetParent()->GetClientSize(&width, NULL);
 127
 128     // best height is as calculated above in Create
 129     wxClientDC dc((wxWindow*)this);
 130     dc.SetFont(GetFont());
 131     wxCoord y;
 132     dc.GetTextExtent(_T("X"), NULL, &y );
 133     height = (int)( (11*y)/10 + 2*GetBorderY());
 134
 135     return wxSize(width, height);
 136 }
 137
 138 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 139 {
 140     wxASSERT_MSG( number >= 0, _T("negative number of fields in wxStatusBar?") );
 141
 142     int i;
 143     for(i = m_nFields; i < number; ++i)
 144         m_statusStrings.Add( wxEmptyString );
 145
 146     for (i = m_nFields - 1; i >= number; --i)
 147         m_statusStrings.RemoveAt(i);
 148
 149     // forget the old cached pixel widths
 150     m_widthsAbs.Empty();
 151
 152     wxStatusBarBase::SetFieldsCount(number, widths);
 153
 154     wxASSERT_MSG( m_nFields == (int)m_statusStrings.GetCount(),
 155                   _T("This really should never happen, can we do away with m_nFields here?") );
 156 }
 157
 158 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 159 {
 160     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 161                  _T("invalid status bar field index") );
 162
 163     wxString oldText = m_statusStrings[number];
 164     if (oldText != text)
 165     {
 166         m_statusStrings[number] = text;
 167
 168         wxRect rect;
 169         GetFieldRect(number, rect);
 170
 171         Refresh( true, &rect );
 172     }
 173 }
 174
 175 wxString wxStatusBarGeneric::GetStatusText(int n) const
 176 {
 177     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 178                  _T("invalid status bar field index") );
 179
 180     return m_statusStrings[n];
 181 }
 182
 183 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 184 {
 185     // only set status widths, when n == number of statuswindows
 186     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 187
 188     // delete the old widths in any case - this function may be used to reset
 189     // the widths to the default (all equal)
 190     // MBN: this is incompatible with at least wxMSW and wxMAC and not
 191     //      documented, but let's keep it for now
 192     ReinitWidths();
 193
 194     // forget the old cached pixel widths
 195     m_widthsAbs.Empty();
 196
 197     if ( !widths_field )
 198     {
 199         // not an error, see the comment above
 200         Refresh();
 201         return;
 202     }
 203
 204     wxStatusBarBase::SetStatusWidths(n, widths_field);
 205 }
 206
 207 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 208 {
 209     wxPaintDC dc(this);
 210
 211 #ifdef __WXGTK20__
 212     // Draw grip first
 213     if (HasFlag( wxST_SIZEGRIP ))
 214     {
 215         int width, height;
 216         GetClientSize(&width, &height);
 217
 218         gtk_paint_resize_grip( m_widget->style,
 219                                GTK_PIZZA(m_wxwindow)->bin_window,
 220                                (GtkStateType) GTK_WIDGET_STATE (m_widget),
 221                                NULL,
 222                                m_widget,
 223                                "statusbar",
 224                                GDK_WINDOW_EDGE_SOUTH_EAST,
 225                                width-height-2, 1, height-2, height-3 );
 226
 227     }
 228 #endif
 229
 230   if (GetFont().Ok())
 231         dc.SetFont(GetFont());
 232
 233   dc.SetBackgroundMode(wxTRANSPARENT);
 234
 235 #ifdef __WXPM__
 236   wxColour vColor;
 237
 238   vColor = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR);
 239   ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 240 #endif
 241
 242   for (int i = 0; i < m_nFields; i ++)
 243         DrawField(dc, i);
 244 }
 245
 246 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 247 {
 248   int leftMargin = 2;
 249
 250   wxRect rect;
 251   GetFieldRect(i, rect);
 252
 253   wxString text(GetStatusText(i));
 254
 255   long x, y;
 256
 257   dc.GetTextExtent(text, &x, &y);
 258
 259   int xpos = rect.x + leftMargin;
 260   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 261
 262 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 263   xpos++;
 264   ypos++;
 265 #endif
 266
 267   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 268
 269   dc.DrawText(text, xpos, ypos);
 270
 271   dc.DestroyClippingRegion();
 272 }
 273
 274 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 275 {
 276     wxRect rect;
 277     GetFieldRect(i, rect);
 278
 279     int style = wxSB_NORMAL;
 280     if (m_statusStyles)
 281         style = m_statusStyles[i];
 282
 283     if (style != wxSB_FLAT)
 284     {
 285         // Draw border
 286         // For wxSB_NORMAL:
 287         // Have grey background, plus 3-d border -
 288         // One black rectangle.
 289         // Inside this, left and top sides - dark grey. Bottom and right -
 290         // white.
 291         // Reverse it for wxSB_RAISED
 292
 293         dc.SetPen((style == wxSB_RAISED) ? m_mediumShadowPen : m_hilightPen);
 294
 295     #ifndef __WXPM__
 296
 297         // Right and bottom lines
 298         dc.DrawLine(rect.x + rect.width, rect.y,
 299                     rect.x + rect.width, rect.y + rect.height);
 300         dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 301                     rect.x, rect.y + rect.height);
 302
 303         dc.SetPen((style == wxSB_RAISED) ? m_hilightPen : m_mediumShadowPen);
 304
 305         // Left and top lines
 306         dc.DrawLine(rect.x, rect.y + rect.height,
 307                rect.x, rect.y);
 308         dc.DrawLine(rect.x, rect.y,
 309             rect.x + rect.width, rect.y);
 310     #else
 311
 312         dc.DrawLine(rect.x + rect.width, rect.height + 2,
 313                     rect.x, rect.height + 2);
 314         dc.DrawLine(rect.x + rect.width, rect.y,
 315                     rect.x + rect.width, rect.y + rect.height);
 316
 317         dc.SetPen((style == wxSB_RAISED) ? m_hilightPen : m_mediumShadowPen);
 318         dc.DrawLine(rect.x, rect.y,
 319                     rect.x + rect.width, rect.y);
 320         dc.DrawLine(rect.x, rect.y + rect.height,
 321                    rect.x, rect.y);
 322
 323 #endif
 324     }
 325
 326     DrawFieldText(dc, i);
 327 }
 328
 329   // Get the position and size of the field's internal bounding rectangle
 330 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 331 {
 332     wxCHECK_MSG( (n >= 0) && (n < m_nFields), false,
 333                  _T("invalid status bar field index") );
 334
 335     // FIXME: workarounds for OS/2 bugs have nothing to do here (VZ)
 336     int width, height;
 337 #ifdef __WXPM__
 338     GetSize(&width, &height);
 339 #else
 340     GetClientSize(&width, &height);
 341 #endif
 342
 343     // we cache m_widthsAbs between calls and recompute it if client
 344     // width has changed (or when it is initially empty)
 345     if ( m_widthsAbs.IsEmpty() || (m_lastClientWidth != width) )
 346     {
 347         wxConstCast(this, wxStatusBarGeneric)->
 348             m_widthsAbs = CalculateAbsWidths(width);
 349         // remember last width for which we have recomputed the widths in pixels
 350         wxConstCast(this, wxStatusBarGeneric)->
 351             m_lastClientWidth = width;
 352     }
 353
 354     rect.x = 0;
 355     for ( int i = 0; i < n; i++ )
 356     {
 357         rect.x += m_widthsAbs[i];
 358     }
 359
 360     rect.x += m_borderX;
 361     rect.y = m_borderY;
 362
 363     rect.width = m_widthsAbs[n] - 2*m_borderX;
 364     rect.height = height - 2*m_borderY;
 365
 366     return true;
 367 }
 368
 369 // Initialize colours
 370 void wxStatusBarGeneric::InitColours()
 371 {
 372     // Shadow colours
 373 #if defined(__WIN95__) || defined(__WXMAC__)
 374     wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
 375     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 376
 377     wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
 378     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 379 #elif defined(__WXPM__)
 380     m_mediumShadowPen = wxPen(wxColour(127, 127, 127), 1, wxSOLID);
 381     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 382
 383     wxColour                        vColour;
 384
 385     vColour.Set(wxString("LIGHT GREY"));
 386     SetBackgroundColour(vColour);
 387     vColour.Set(wxString("BLACK"));
 388     SetForegroundColour(vColour);
 389 #else
 390     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 391     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 392 #endif
 393 }
 394
 395 // Responds to colour changes, and passes event on to children.
 396 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 397 {
 398     InitColours();
 399
 400     // Propagate the event to the non-top-level children
 401     wxWindow::OnSysColourChanged(event);
 402 }
 403
 404 void wxStatusBarGeneric::SetMinHeight(int height)
 405 {
 406     // check that this min height is not less than minimal height for the
 407     // current font
 408     wxClientDC dc(this);
 409     wxCoord y;
 410     dc.GetTextExtent( wxT("X"), NULL, &y );
 411
 412     if ( height > (11*y)/10 )
 413     {
 414         SetSize(wxDefaultCoord, wxDefaultCoord, wxDefaultCoord, height + 2*m_borderY);
 415     }
 416 }
 417
 418 void wxStatusBarGeneric::OnLeftDown(wxMouseEvent& event)
 419 {
 420 #ifdef __WXGTK20__
 421     int width, height;
 422     GetClientSize(&width, &height);
 423
 424     if (HasFlag( wxST_SIZEGRIP ) && (event.GetX() > width-height))
 425     {
 426         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 427
 428         if (!GTK_IS_WINDOW (ancestor))
 429             return;
 430
 431         GdkWindow *source = GTK_PIZZA(m_wxwindow)->bin_window;
 432
 433         int org_x = 0;
 434         int org_y = 0;
 435         gdk_window_get_origin( source, &org_x, &org_y );
 436
 437         gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 438                                   GDK_WINDOW_EDGE_SOUTH_EAST,
 439                                   1,
 440                                   org_x + event.GetX(),
 441                                   org_y + event.GetY(),
 442                                   0);
 443     }
 444     else
 445     {
 446         event.Skip( true );
 447     }
 448 #else
 449     event.Skip( true );
 450 #endif
 451 }
 452
 453 void wxStatusBarGeneric::OnRightDown(wxMouseEvent& event)
 454 {
 455 #ifdef __WXGTK20__
 456     int width, height;
 457     GetClientSize(&width, &height);
 458
 459     if (HasFlag( wxST_SIZEGRIP ) && (event.GetX() > width-height))
 460     {
 461         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 462
 463         if (!GTK_IS_WINDOW (ancestor))
 464             return;
 465
 466         GdkWindow *source = GTK_PIZZA(m_wxwindow)->bin_window;
 467
 468         int org_x = 0;
 469         int org_y = 0;
 470         gdk_window_get_origin( source, &org_x, &org_y );
 471
 472         gtk_window_begin_move_drag (GTK_WINDOW (ancestor),
 473                                 2,
 474                                 org_x + event.GetX(),
 475                                 org_y + event.GetY(),
 476                                 0);
 477     }
 478     else
 479     {
 480         event.Skip( true );
 481     }
 482 #else
 483     event.Skip( true );
 484 #endif
 485 }
 486
 487 #endif // wxUSE_STATUSBAR
 488