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