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   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(wxDefaultPosition.x, wxDefaultPosition.y, wxDefaultSize.x, height);
 106
 107   SetFieldsCount(1);
 108
 109   return true;
 110 }
 111
 112
 113 wxSize wxStatusBarGeneric::DoGetBestSize() const
 114 {
 115     int width, height;
 116
 117     // best width is the width of the parent
 118     GetParent()->GetClientSize(&width, NULL);
 119
 120     // best height is as calculated above in Create
 121     wxClientDC dc((wxWindow*)this);
 122     dc.SetFont(GetFont());
 123     wxCoord y;
 124     dc.GetTextExtent(_T("X"), NULL, &y );
 125     height = (int)( (11*y)/10 + 2*GetBorderY());
 126
 127     return wxSize(width, height);
 128 }
 129
 130 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 131 {
 132     wxASSERT_MSG( number >= 0, _T("negative number of fields in wxStatusBar?") );
 133
 134     int i;
 135     for(i = m_nFields; i < number; ++i)
 136         m_statusStrings.Add( wxEmptyString );
 137
 138     for (i = m_nFields - 1; i >= number; --i)
 139         m_statusStrings.RemoveAt(i);
 140
 141     m_nFields = number;
 142
 143     wxASSERT_MSG( m_nFields == (int)m_statusStrings.GetCount(),
 144                   _T("This really should never happen, can we do away with m_nFields here?") );
 145
 146     SetStatusWidths(number, widths);
 147 }
 148
 149 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 150 {
 151     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 152                  _T("invalid status bar field index") );
 153
 154     wxString oldText = m_statusStrings[number];
 155     if (oldText != text)
 156     {
 157         m_statusStrings[number] = text;
 158
 159         wxRect rect;
 160         GetFieldRect(number, rect);
 161
 162         Refresh( true, &rect );
 163     }
 164 }
 165
 166 wxString wxStatusBarGeneric::GetStatusText(int n) const
 167 {
 168     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 169                  _T("invalid status bar field index") );
 170
 171     return m_statusStrings[n];
 172 }
 173
 174 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 175 {
 176     // only set status widths, when n == number of statuswindows
 177     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 178
 179     // delete the old widths in any case - this function may be used to reset
 180     // the widths to the default (all equal)
 181     // MBN: this is incompatible with at least wxMSW and wxMAC and not
 182     //      documented, but let's keep it for now
 183     ReinitWidths();
 184
 185     // forget the old cached pixel widths
 186     m_widthsAbs.Empty();
 187
 188     if ( !widths_field )
 189     {
 190         // not an error, see the comment above
 191         Refresh();
 192         return;
 193     }
 194
 195     wxStatusBarBase::SetStatusWidths(n, widths_field);
 196 }
 197
 198 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 199 {
 200     wxPaintDC dc(this);
 201
 202 #ifdef __WXGTK20__
 203     // Draw grip first
 204     if (HasFlag( wxST_SIZEGRIP ))
 205     {
 206         int width, height;
 207         GetClientSize(&width, &height);
 208
 209         gtk_paint_resize_grip( m_widget->style,
 210                                GTK_PIZZA(m_wxwindow)->bin_window,
 211                                (GtkStateType) GTK_WIDGET_STATE (m_widget),
 212                                NULL,
 213                                m_widget,
 214                                "statusbar",
 215                                GDK_WINDOW_EDGE_SOUTH_EAST,
 216                                width-height-2, 1, height-2, height-3 );
 217
 218     }
 219 #endif
 220
 221   if (GetFont().Ok())
 222         dc.SetFont(GetFont());
 223
 224   dc.SetBackgroundMode(wxTRANSPARENT);
 225
 226 #ifdef __WXPM__
 227   wxColour vColor;
 228
 229   vColor = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR);
 230   ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 231 #endif
 232
 233   for (int i = 0; i < m_nFields; i ++)
 234         DrawField(dc, i);
 235 }
 236
 237 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 238 {
 239   int leftMargin = 2;
 240
 241   wxRect rect;
 242   GetFieldRect(i, rect);
 243
 244   wxString text(GetStatusText(i));
 245
 246   long x, y;
 247
 248   dc.GetTextExtent(text, &x, &y);
 249
 250   int xpos = rect.x + leftMargin;
 251   int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 252
 253 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 254   xpos++;
 255   ypos++;
 256 #endif
 257
 258   dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 259
 260   dc.DrawText(text, xpos, ypos);
 261
 262   dc.DestroyClippingRegion();
 263 }
 264
 265 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 266 {
 267     wxRect rect;
 268     GetFieldRect(i, rect);
 269
 270     // Draw border
 271     // Have grey background, plus 3-d border -
 272     // One black rectangle.
 273     // Inside this, left and top sides - dark grey. Bottom and right -
 274     // white.
 275
 276     dc.SetPen(m_hilightPen);
 277
 278 #ifndef __WXPM__
 279
 280     // Right and bottom white lines
 281     dc.DrawLine(rect.x + rect.width, rect.y,
 282                 rect.x + rect.width, rect.y + rect.height);
 283     dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 284                 rect.x, rect.y + rect.height);
 285
 286     dc.SetPen(m_mediumShadowPen);
 287
 288     // Left and top grey lines
 289     dc.DrawLine(rect.x, rect.y + rect.height,
 290            rect.x, rect.y);
 291     dc.DrawLine(rect.x, rect.y,
 292         rect.x + rect.width, rect.y);
 293 #else
 294
 295     dc.DrawLine(rect.x + rect.width, rect.height + 2,
 296                 rect.x, rect.height + 2);
 297     dc.DrawLine(rect.x + rect.width, rect.y,
 298                 rect.x + rect.width, rect.y + rect.height);
 299
 300     dc.SetPen(m_mediumShadowPen);
 301     dc.DrawLine(rect.x, rect.y,
 302                 rect.x + rect.width, rect.y);
 303     dc.DrawLine(rect.x, rect.y + rect.height,
 304                 rect.x, rect.y);
 305
 306 #endif
 307
 308     DrawFieldText(dc, i);
 309 }
 310
 311   // Get the position and size of the field's internal bounding rectangle
 312 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 313 {
 314     wxCHECK_MSG( (n >= 0) && (n < m_nFields), false,
 315                  _T("invalid status bar field index") );
 316
 317     // FIXME: workarounds for OS/2 bugs have nothing to do here (VZ)
 318     int width, height;
 319 #ifdef __WXPM__
 320     GetSize(&width, &height);
 321 #else
 322     GetClientSize(&width, &height);
 323 #endif
 324
 325     // we cache m_widthsAbs between calls and recompute it if client
 326     // width has changed (or when it is initially empty)
 327     if ( m_widthsAbs.IsEmpty() || (m_lastClientWidth != width) )
 328     {
 329         wxConstCast(this, wxStatusBarGeneric)->
 330             m_widthsAbs = CalculateAbsWidths(width);
 331         // remember last width for which we have recomputed the widths in pixels
 332         wxConstCast(this, wxStatusBarGeneric)->
 333             m_lastClientWidth = width;
 334     }
 335
 336     rect.x = 0;
 337     for ( int i = 0; i < n; i++ )
 338     {
 339         rect.x += m_widthsAbs[i];
 340     }
 341
 342     rect.x += m_borderX;
 343     rect.y = m_borderY;
 344
 345     rect.width = m_widthsAbs[n] - 2*m_borderX;
 346     rect.height = height - 2*m_borderY;
 347
 348     return true;
 349 }
 350
 351 // Initialize colours
 352 void wxStatusBarGeneric::InitColours()
 353 {
 354     // Shadow colours
 355 #if defined(__WIN95__) || defined(__WXMAC__)
 356     wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
 357     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 358
 359     wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
 360     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 361 #elif defined(__WXPM__)
 362     m_mediumShadowPen = wxPen(wxColour(127, 127, 127), 1, wxSOLID);
 363     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 364
 365     wxColour                        vColour;
 366
 367     vColour.Set(wxString("LIGHT GREY"));
 368     SetBackgroundColour(vColour);
 369     vColour.Set(wxString("BLACK"));
 370     SetForegroundColour(vColour);
 371     m_defaultStatusBarFont = *wxSMALL_FONT;
 372 #else
 373     m_mediumShadowPen = wxPen("GREY", 1, wxSOLID);
 374     m_hilightPen = wxPen("WHITE", 1, wxSOLID);
 375 #endif
 376
 377 #ifndef __WXPM__
 378     m_defaultStatusBarFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
 379     SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE));
 380 #endif
 381 }
 382
 383 // Responds to colour changes, and passes event on to children.
 384 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 385 {
 386     InitColours();
 387     Refresh();
 388
 389     // Propagate the event to the non-top-level children
 390     wxWindow::OnSysColourChanged(event);
 391 }
 392
 393 void wxStatusBarGeneric::SetMinHeight(int height)
 394 {
 395     // check that this min height is not less than minimal height for the
 396     // current font
 397     wxClientDC dc(this);
 398     wxCoord y;
 399     dc.GetTextExtent( wxT("X"), NULL, &y );
 400
 401     if ( height > (11*y)/10 )
 402     {
 403         SetSize(wxDefaultPosition.x, wxDefaultPosition.y, wxDefaultSize.x, height + 2*m_borderY);
 404     }
 405 }
 406
 407 void wxStatusBarGeneric::OnLeftDown(wxMouseEvent& event)
 408 {
 409 #ifdef __WXGTK20__
 410     int width, height;
 411     GetClientSize(&width, &height);
 412
 413     if (HasFlag( wxST_SIZEGRIP ) && (event.GetX() > width-height))
 414     {
 415         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 416
 417         if (!GTK_IS_WINDOW (ancestor))
 418             return;
 419
 420         GdkWindow *source = GTK_PIZZA(m_wxwindow)->bin_window;
 421
 422         int org_x = 0;
 423         int org_y = 0;
 424         gdk_window_get_origin( source, &org_x, &org_y );
 425
 426         gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 427                                   GDK_WINDOW_EDGE_SOUTH_EAST,
 428                                   1,
 429                                   org_x + event.GetX(),
 430                                   org_y + event.GetY(),
 431                                   0);
 432     }
 433     else
 434     {
 435         event.Skip( true );
 436     }
 437 #else
 438     event.Skip( true );
 439 #endif
 440 }
 441
 442 void wxStatusBarGeneric::OnRightDown(wxMouseEvent& event)
 443 {
 444 #ifdef __WXGTK20__
 445     int width, height;
 446     GetClientSize(&width, &height);
 447
 448     if (HasFlag( wxST_SIZEGRIP ) && (event.GetX() > width-height))
 449     {
 450         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 451
 452         if (!GTK_IS_WINDOW (ancestor))
 453             return;
 454
 455         GdkWindow *source = GTK_PIZZA(m_wxwindow)->bin_window;
 456
 457         int org_x = 0;
 458         int org_y = 0;
 459         gdk_window_get_origin( source, &org_x, &org_y );
 460
 461         gtk_window_begin_move_drag (GTK_WINDOW (ancestor),
 462                                 2,
 463                                 org_x + event.GetX(),
 464                                 org_y + event.GetY(),
 465                                 0);
 466     }
 467     else
 468     {
 469         event.Skip( true );
 470     }
 471 #else
 472     event.Skip( true );
 473 #endif
 474 }
 475
 476 #endif // wxUSE_STATUSBAR
 477