src/generic/statusbr.cpp

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        src/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 // For compilers that support precompilation, includes "wx.h".
  13 #include "wx/wxprec.h"
  14
  15 #ifdef __BORLANDC__
  16     #pragma hdrstop
  17 #endif
  18
  19 #if wxUSE_STATUSBAR
  20
  21 #include "wx/statusbr.h"
  22
  23 #ifndef WX_PRECOMP
  24     #include "wx/settings.h"
  25     #include "wx/dcclient.h"
  26 #endif
  27
  28 #ifdef __WXGTK20__
  29     #include <gtk/gtk.h>
  30     #include "wx/gtk/win_gtk.h"
  31 #endif
  32
  33 // we only have to do it here when we use wxStatusBarGeneric in addition to the
  34 // standard wxStatusBar class, if wxStatusBarGeneric is the same as
  35 // wxStatusBar, then the corresponding IMPLEMENT_DYNAMIC_CLASS is already in
  36 // common/statbar.cpp
  37 #if defined(__WXMAC__) || \
  38     (defined(wxUSE_NATIVE_STATUSBAR) && wxUSE_NATIVE_STATUSBAR)
  39     #include "wx/generic/statusbr.h"
  40
  41     IMPLEMENT_DYNAMIC_CLASS(wxStatusBarGeneric, wxWindow)
  42 #endif // wxUSE_NATIVE_STATUSBAR
  43
  44 BEGIN_EVENT_TABLE(wxStatusBarGeneric, wxWindow)
  45     EVT_PAINT(wxStatusBarGeneric::OnPaint)
  46     EVT_LEFT_DOWN(wxStatusBarGeneric::OnLeftDown)
  47     EVT_RIGHT_DOWN(wxStatusBarGeneric::OnRightDown)
  48     EVT_SYS_COLOUR_CHANGED(wxStatusBarGeneric::OnSysColourChanged)
  49 END_EVENT_TABLE()
  50
  51 // Default status border dimensions
  52 #define         wxTHICK_LINE_BORDER 2
  53
  54 void wxStatusBarGeneric::Init()
  55 {
  56     m_borderX = wxTHICK_LINE_BORDER;
  57     m_borderY = wxTHICK_LINE_BORDER;
  58 }
  59
  60 wxStatusBarGeneric::~wxStatusBarGeneric()
  61 {
  62 }
  63
  64 bool wxStatusBarGeneric::Create(wxWindow *parent,
  65                                 wxWindowID id,
  66                                 long style,
  67                                 const wxString& name)
  68 {
  69     style |= wxTAB_TRAVERSAL | wxFULL_REPAINT_ON_RESIZE;
  70     if ( !wxWindow::Create(parent, id,
  71                            wxDefaultPosition, wxDefaultSize,
  72                            style, name) )
  73         return false;
  74
  75     // The status bar should have a themed background
  76     SetThemeEnabled( true );
  77
  78     InitColours();
  79
  80 #ifdef __WXPM__
  81     SetFont(*wxSMALL_FONT);
  82 #endif
  83
  84         wxCoord y;
  85         {
  86                 // Set the height according to the font and the border size
  87                 wxClientDC dc(this);
  88                 dc.SetFont(GetFont());
  89
  90                 dc.GetTextExtent(_T("X"), NULL, &y );
  91         }
  92     int height = (int)( (11*y)/10 + 2*GetBorderY());
  93
  94     SetSize(wxDefaultCoord, wxDefaultCoord, wxDefaultCoord, height);
  95
  96     SetFieldsCount(1);
  97
  98     return true;
  99 }
 100
 101
 102 wxSize wxStatusBarGeneric::DoGetBestSize() const
 103 {
 104     int width, height;
 105
 106     // best width is the width of the parent
 107     GetParent()->GetClientSize(&width, NULL);
 108
 109     // best height is as calculated above in Create
 110     wxClientDC dc((wxWindow*)this);
 111     dc.SetFont(GetFont());
 112     wxCoord y;
 113     dc.GetTextExtent(_T("X"), NULL, &y );
 114     height = (int)( (11*y)/10 + 2*GetBorderY());
 115
 116     return wxSize(width, height);
 117 }
 118
 119 void wxStatusBarGeneric::SetFieldsCount(int number, const int *widths)
 120 {
 121     wxASSERT_MSG( number >= 0, _T("negative number of fields in wxStatusBar?") );
 122
 123     int i;
 124     for(i = m_nFields; i < number; ++i)
 125         m_statusStrings.Add( wxEmptyString );
 126
 127     for (i = m_nFields - 1; i >= number; --i)
 128         m_statusStrings.RemoveAt(i);
 129
 130     // forget the old cached pixel widths
 131     m_widthsAbs.Empty();
 132
 133     wxStatusBarBase::SetFieldsCount(number, widths);
 134
 135     wxASSERT_MSG( m_nFields == (int)m_statusStrings.GetCount(),
 136                   _T("This really should never happen, can we do away with m_nFields here?") );
 137 }
 138
 139 void wxStatusBarGeneric::SetStatusText(const wxString& text, int number)
 140 {
 141     wxCHECK_RET( (number >= 0) && (number < m_nFields),
 142                  _T("invalid status bar field index") );
 143
 144     wxString oldText = m_statusStrings[number];
 145     if (oldText != text)
 146     {
 147         m_statusStrings[number] = text;
 148
 149         wxRect rect;
 150         GetFieldRect(number, rect);
 151
 152         Refresh(true, &rect);
 153
 154         // it's common to show some text in the status bar before starting a
 155         // relatively lengthy operation, ensure that the text is shown to the
 156         // user immediately and not after the lengthy operation end
 157         Update();
 158     }
 159 }
 160
 161 wxString wxStatusBarGeneric::GetStatusText(int n) const
 162 {
 163     wxCHECK_MSG( (n >= 0) && (n < m_nFields), wxEmptyString,
 164                  _T("invalid status bar field index") );
 165
 166     return m_statusStrings[n];
 167 }
 168
 169 void wxStatusBarGeneric::SetStatusWidths(int n, const int widths_field[])
 170 {
 171     // only set status widths, when n == number of statuswindows
 172     wxCHECK_RET( n == m_nFields, _T("status bar field count mismatch") );
 173
 174     // delete the old widths in any case - this function may be used to reset
 175     // the widths to the default (all equal)
 176     // MBN: this is incompatible with at least wxMSW and wxMAC and not
 177     //      documented, but let's keep it for now
 178     ReinitWidths();
 179
 180     // forget the old cached pixel widths
 181     m_widthsAbs.Empty();
 182
 183     if ( !widths_field )
 184     {
 185         // not an error, see the comment above
 186         Refresh();
 187         return;
 188     }
 189
 190     wxStatusBarBase::SetStatusWidths(n, widths_field);
 191 }
 192
 193 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 194 {
 195     wxPaintDC dc(this);
 196
 197 #ifdef __WXGTK20__
 198     // Draw grip first
 199     if (HasFlag( wxST_SIZEGRIP ))
 200     {
 201         int width, height;
 202         GetClientSize(&width, &height);
 203
 204         if (GetLayoutDirection() == wxLayout_RightToLeft)
 205         {
 206             gtk_paint_resize_grip( m_widget->style,
 207                                GTK_PIZZA(m_wxwindow)->bin_window,
 208                                (GtkStateType) GTK_WIDGET_STATE (m_widget),
 209                                NULL,
 210                                m_widget,
 211                                "statusbar",
 212                                GDK_WINDOW_EDGE_SOUTH_WEST,
 213                                2, 2, height-2, height-4 );
 214         }
 215         else
 216         {
 217             gtk_paint_resize_grip( m_widget->style,
 218                                GTK_PIZZA(m_wxwindow)->bin_window,
 219                                (GtkStateType) GTK_WIDGET_STATE (m_widget),
 220                                NULL,
 221                                m_widget,
 222                                "statusbar",
 223                                GDK_WINDOW_EDGE_SOUTH_EAST,
 224                                width-height-2, 2, height-2, height-4 );
 225         }
 226     }
 227 #endif
 228
 229     if (GetFont().Ok())
 230         dc.SetFont(GetFont());
 231
 232     dc.SetBackgroundMode(wxTRANSPARENT);
 233
 234 #ifdef __WXPM__
 235     wxColour vColor;
 236
 237     vColor = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR);
 238     ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 239 #endif
 240
 241     for (int i = 0; i < m_nFields; i ++)
 242         DrawField(dc, i);
 243 }
 244
 245 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 246 {
 247     int leftMargin = 2;
 248
 249     wxRect rect;
 250     GetFieldRect(i, rect);
 251
 252     wxString text(GetStatusText(i));
 253
 254     long x = 0, y = 0;
 255
 256     dc.GetTextExtent(text, &x, &y);
 257
 258     int xpos = rect.x + leftMargin;
 259     int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 260
 261 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 262     xpos++;
 263     ypos++;
 264 #endif
 265
 266     dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 267
 268     dc.DrawText(text, xpos, ypos);
 269
 270     dc.DestroyClippingRegion();
 271 }
 272
 273 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 274 {
 275     wxRect rect;
 276     GetFieldRect(i, rect);
 277
 278     int style = wxSB_NORMAL;
 279     if (m_statusStyles)
 280         style = m_statusStyles[i];
 281
 282     if (style != wxSB_FLAT)
 283     {
 284         // Draw border
 285         // For wxSB_NORMAL:
 286         // Have grey background, plus 3-d border -
 287         // One black rectangle.
 288         // Inside this, left and top sides - dark grey. Bottom and right -
 289         // white.
 290         // Reverse it for wxSB_RAISED
 291
 292         dc.SetPen((style == wxSB_RAISED) ? m_mediumShadowPen : m_hilightPen);
 293
 294     #ifndef __WXPM__
 295
 296         // Right and bottom lines
 297         dc.DrawLine(rect.x + rect.width, rect.y,
 298                     rect.x + rect.width, rect.y + rect.height);
 299         dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 300                     rect.x, rect.y + rect.height);
 301
 302         dc.SetPen((style == wxSB_RAISED) ? m_hilightPen : m_mediumShadowPen);
 303
 304         // Left and top lines
 305         dc.DrawLine(rect.x, rect.y + rect.height,
 306                rect.x, rect.y);
 307         dc.DrawLine(rect.x, rect.y,
 308             rect.x + rect.width, rect.y);
 309     #else
 310
 311         dc.DrawLine(rect.x + rect.width, rect.height + 2,
 312                     rect.x, rect.height + 2);
 313         dc.DrawLine(rect.x + rect.width, rect.y,
 314                     rect.x + rect.width, rect.y + rect.height);
 315
 316         dc.SetPen((style == wxSB_RAISED) ? m_hilightPen : m_mediumShadowPen);
 317         dc.DrawLine(rect.x, rect.y,
 318                     rect.x + rect.width, rect.y);
 319         dc.DrawLine(rect.x, rect.y + rect.height,
 320                    rect.x, rect.y);
 321
 322 #endif
 323     }
 324
 325     DrawFieldText(dc, i);
 326 }
 327
 328   // Get the position and size of the field's internal bounding rectangle
 329 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 330 {
 331     wxCHECK_MSG( (n >= 0) && (n < m_nFields), false,
 332                  _T("invalid status bar field index") );
 333
 334     // FIXME: workarounds for OS/2 bugs have nothing to do here (VZ)
 335     int width, height;
 336 #ifdef __WXPM__
 337     GetSize(&width, &height);
 338 #else
 339     GetClientSize(&width, &height);
 340 #endif
 341
 342     // we cache m_widthsAbs between calls and recompute it if client
 343     // width has changed (or when it is initially empty)
 344     if ( m_widthsAbs.IsEmpty() || (m_lastClientWidth != width) )
 345     {
 346         wxConstCast(this, wxStatusBarGeneric)->
 347             m_widthsAbs = CalculateAbsWidths(width);
 348         // remember last width for which we have recomputed the widths in pixels
 349         wxConstCast(this, wxStatusBarGeneric)->
 350             m_lastClientWidth = width;
 351     }
 352
 353     rect.x = 0;
 354     for ( int i = 0; i < n; i++ )
 355     {
 356         rect.x += m_widthsAbs[i];
 357     }
 358
 359     rect.x += m_borderX;
 360     rect.y = m_borderY;
 361
 362     rect.width = m_widthsAbs[n] - 2*m_borderX;
 363     rect.height = height - 2*m_borderY;
 364
 365     return true;
 366 }
 367
 368 // Initialize colours
 369 void wxStatusBarGeneric::InitColours()
 370 {
 371     // Shadow colours
 372 #if defined(__WXMSW__) || defined(__WXMAC__)
 373     wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
 374     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 375
 376     wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
 377     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 378 #elif defined(__WXPM__)
 379     m_mediumShadowPen = wxPen(wxColour(127, 127, 127), 1, wxSOLID);
 380     m_hilightPen = *wxWHITE_PEN;
 381
 382     SetBackgroundColour(*wxLIGHT_GREY);
 383     SetForegroundColour(*wxBLACK);
 384 #else
 385     m_mediumShadowPen = *wxGREY_PEN;
 386     m_hilightPen = *wxWHITE_PEN;
 387 #endif
 388 }
 389
 390 // Responds to colour changes, and passes event on to children.
 391 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 392 {
 393     InitColours();
 394
 395     // Propagate the event to the non-top-level children
 396     wxWindow::OnSysColourChanged(event);
 397 }
 398
 399 void wxStatusBarGeneric::SetMinHeight(int height)
 400 {
 401     // check that this min height is not less than minimal height for the
 402     // current font
 403     wxClientDC dc(this);
 404     wxCoord y;
 405     dc.GetTextExtent( wxT("X"), NULL, &y );
 406
 407     if ( height > (11*y)/10 )
 408     {
 409         SetSize(wxDefaultCoord, wxDefaultCoord, wxDefaultCoord, height + 2*m_borderY);
 410     }
 411 }
 412
 413 void wxStatusBarGeneric::OnLeftDown(wxMouseEvent& event)
 414 {
 415 #ifdef __WXGTK20__
 416     int width, height;
 417     GetClientSize(&width, &height);
 418
 419     if (HasFlag( wxST_SIZEGRIP ) && (event.GetX() > width-height))
 420     {
 421         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 422
 423         if (!GTK_IS_WINDOW (ancestor))
 424             return;
 425
 426         GdkWindow *source = GTK_PIZZA(m_wxwindow)->bin_window;
 427
 428         int org_x = 0;
 429         int org_y = 0;
 430         gdk_window_get_origin( source, &org_x, &org_y );
 431
 432         if (GetLayoutDirection() == wxLayout_RightToLeft)
 433         {
 434             gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 435                                   GDK_WINDOW_EDGE_SOUTH_WEST,
 436                                   1,
 437                                   org_x - event.GetX() + GetSize().x ,
 438                                   org_y + event.GetY(),
 439                                   0);
 440         }
 441         else
 442         {
 443             gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 444                                   GDK_WINDOW_EDGE_SOUTH_EAST,
 445                                   1,
 446                                   org_x + event.GetX(),
 447                                   org_y + event.GetY(),
 448                                   0);
 449         }
 450     }
 451     else
 452     {
 453         event.Skip( true );
 454     }
 455 #else
 456     event.Skip( true );
 457 #endif
 458 }
 459
 460 void wxStatusBarGeneric::OnRightDown(wxMouseEvent& event)
 461 {
 462 #ifdef __WXGTK20__
 463     int width, height;
 464     GetClientSize(&width, &height);
 465
 466     if (HasFlag( wxST_SIZEGRIP ) && (event.GetX() > width-height))
 467     {
 468         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 469
 470         if (!GTK_IS_WINDOW (ancestor))
 471             return;
 472
 473         GdkWindow *source = GTK_PIZZA(m_wxwindow)->bin_window;
 474
 475         int org_x = 0;
 476         int org_y = 0;
 477         gdk_window_get_origin( source, &org_x, &org_y );
 478
 479         gtk_window_begin_move_drag (GTK_WINDOW (ancestor),
 480                                 2,
 481                                 org_x + event.GetX(),
 482                                 org_y + event.GetY(),
 483                                 0);
 484     }
 485     else
 486     {
 487         event.Skip( true );
 488     }
 489 #else
 490     event.Skip( true );
 491 #endif
 492 }
 493
 494 #endif // wxUSE_STATUSBAR