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