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     #include "wx/toplevel.h"
  27 #endif
  28
  29 #ifdef __WXGTK20__
  30     #include <gtk/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 bool wxStatusBarGeneric::ShowsSizeGrip() const
 194 {
 195     if ( !HasFlag(wxST_SIZEGRIP) )
 196         return false;
 197
 198     wxTopLevelWindow * const
 199         tlw = wxDynamicCast(wxGetTopLevelParent(GetParent()), wxTopLevelWindow);
 200     return tlw && !tlw->IsMaximized() && tlw->HasFlag(wxRESIZE_BORDER);
 201 }
 202
 203 void wxStatusBarGeneric::OnPaint(wxPaintEvent& WXUNUSED(event) )
 204 {
 205     wxPaintDC dc(this);
 206
 207 #ifdef __WXGTK20__
 208     // Draw grip first
 209     if ( ShowsSizeGrip() )
 210     {
 211         int width, height;
 212         GetClientSize(&width, &height);
 213
 214         if (GetLayoutDirection() == wxLayout_RightToLeft)
 215         {
 216             gtk_paint_resize_grip( m_widget->style,
 217                                GTKGetDrawingWindow(),
 218                                (GtkStateType) GTK_WIDGET_STATE (m_widget),
 219                                NULL,
 220                                m_widget,
 221                                "statusbar",
 222                                GDK_WINDOW_EDGE_SOUTH_WEST,
 223                                2, 2, height-2, height-4 );
 224         }
 225         else
 226         {
 227             gtk_paint_resize_grip( m_widget->style,
 228                                GTKGetDrawingWindow(),
 229                                (GtkStateType) GTK_WIDGET_STATE (m_widget),
 230                                NULL,
 231                                m_widget,
 232                                "statusbar",
 233                                GDK_WINDOW_EDGE_SOUTH_EAST,
 234                                width-height-2, 2, height-2, height-4 );
 235         }
 236     }
 237 #endif // __WXGTK20__
 238
 239     if (GetFont().Ok())
 240         dc.SetFont(GetFont());
 241
 242     dc.SetBackgroundMode(wxBRUSHSTYLE_TRANSPARENT);
 243
 244     for (int i = 0; i < m_nFields; i ++)
 245         DrawField(dc, i);
 246 }
 247
 248 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 249 {
 250     int leftMargin = 2;
 251
 252     wxRect rect;
 253     GetFieldRect(i, rect);
 254
 255     wxString text(GetStatusText(i));
 256
 257     wxCoord x = 0, y = 0;
 258
 259     dc.GetTextExtent(text, &x, &y);
 260
 261     int xpos = rect.x + leftMargin;
 262     int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 263
 264 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 265     xpos++;
 266     ypos++;
 267 #endif
 268
 269     dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 270
 271     dc.DrawText(text, xpos, ypos);
 272
 273     dc.DestroyClippingRegion();
 274 }
 275
 276 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 277 {
 278     wxRect rect;
 279     GetFieldRect(i, rect);
 280
 281     int style = wxSB_NORMAL;
 282     if (m_statusStyles)
 283         style = m_statusStyles[i];
 284
 285     if (style != wxSB_FLAT)
 286     {
 287         // Draw border
 288         // For wxSB_NORMAL:
 289         // Have grey background, plus 3-d border -
 290         // One black rectangle.
 291         // Inside this, left and top sides - dark grey. Bottom and right -
 292         // white.
 293         // Reverse it for wxSB_RAISED
 294
 295         dc.SetPen((style == wxSB_RAISED) ? m_mediumShadowPen : m_hilightPen);
 296
 297     #ifndef __WXPM__
 298
 299         // Right and bottom lines
 300         dc.DrawLine(rect.x + rect.width, rect.y,
 301                     rect.x + rect.width, rect.y + rect.height);
 302         dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 303                     rect.x, rect.y + rect.height);
 304
 305         dc.SetPen((style == wxSB_RAISED) ? m_hilightPen : m_mediumShadowPen);
 306
 307         // Left and top lines
 308         dc.DrawLine(rect.x, rect.y + rect.height,
 309                rect.x, rect.y);
 310         dc.DrawLine(rect.x, rect.y,
 311             rect.x + rect.width, rect.y);
 312     #else
 313
 314         dc.DrawLine(rect.x + rect.width, rect.height + 2,
 315                     rect.x, rect.height + 2);
 316         dc.DrawLine(rect.x + rect.width, rect.y,
 317                     rect.x + rect.width, rect.y + rect.height);
 318
 319         dc.SetPen((style == wxSB_RAISED) ? m_hilightPen : m_mediumShadowPen);
 320         dc.DrawLine(rect.x, rect.y,
 321                     rect.x + rect.width, rect.y);
 322         dc.DrawLine(rect.x, rect.y + rect.height,
 323                    rect.x, rect.y);
 324
 325 #endif
 326     }
 327
 328     DrawFieldText(dc, i);
 329 }
 330
 331   // Get the position and size of the field's internal bounding rectangle
 332 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 333 {
 334     wxCHECK_MSG( (n >= 0) && (n < m_nFields), false,
 335                  _T("invalid status bar field index") );
 336
 337     // FIXME: workarounds for OS/2 bugs have nothing to do here (VZ)
 338     int width, height;
 339 #ifdef __WXPM__
 340     GetSize(&width, &height);
 341 #else
 342     GetClientSize(&width, &height);
 343 #endif
 344
 345     // we cache m_widthsAbs between calls and recompute it if client
 346     // width has changed (or when it is initially empty)
 347     if ( m_widthsAbs.IsEmpty() || (m_lastClientWidth != width) )
 348     {
 349         wxConstCast(this, wxStatusBarGeneric)->
 350             m_widthsAbs = CalculateAbsWidths(width);
 351         // remember last width for which we have recomputed the widths in pixels
 352         wxConstCast(this, wxStatusBarGeneric)->
 353             m_lastClientWidth = width;
 354     }
 355
 356     rect.x = 0;
 357     for ( int i = 0; i < n; i++ )
 358     {
 359         rect.x += m_widthsAbs[i];
 360     }
 361
 362     rect.x += m_borderX;
 363     rect.y = m_borderY;
 364
 365     rect.width = m_widthsAbs[n] - 2*m_borderX;
 366     rect.height = height - 2*m_borderY;
 367
 368     return true;
 369 }
 370
 371 // Initialize colours
 372 void wxStatusBarGeneric::InitColours()
 373 {
 374 #if defined(__WXPM__)
 375     m_mediumShadowPen = wxPen(wxColour(127, 127, 127), 1, wxSOLID);
 376     m_hilightPen = *wxWHITE_PEN;
 377
 378     SetBackgroundColour(*wxLIGHT_GREY);
 379     SetForegroundColour(*wxBLACK);
 380 #else // !__WXPM__
 381     m_mediumShadowPen = wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
 382     m_hilightPen = wxPen(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
 383 #endif // __WXPM__/!__WXPM__
 384 }
 385
 386 // Responds to colour changes, and passes event on to children.
 387 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 388 {
 389     InitColours();
 390
 391     // Propagate the event to the non-top-level children
 392     wxWindow::OnSysColourChanged(event);
 393 }
 394
 395 void wxStatusBarGeneric::SetMinHeight(int height)
 396 {
 397     // check that this min height is not less than minimal height for the
 398     // current font
 399     wxClientDC dc(this);
 400     wxCoord y;
 401     dc.GetTextExtent( wxT("X"), NULL, &y );
 402
 403     if ( height > (11*y)/10 )
 404     {
 405         SetSize(wxDefaultCoord, wxDefaultCoord, wxDefaultCoord, height + 2*m_borderY);
 406     }
 407 }
 408
 409 void wxStatusBarGeneric::OnLeftDown(wxMouseEvent& event)
 410 {
 411 #ifdef __WXGTK20__
 412     int width, height;
 413     GetClientSize(&width, &height);
 414
 415     if ( ShowsSizeGrip()  && (event.GetX() > width-height) )
 416     {
 417         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 418
 419         if (!GTK_IS_WINDOW (ancestor))
 420             return;
 421
 422         GdkWindow *source = GTKGetDrawingWindow();
 423
 424         int org_x = 0;
 425         int org_y = 0;
 426         gdk_window_get_origin( source, &org_x, &org_y );
 427
 428         if (GetLayoutDirection() == wxLayout_RightToLeft)
 429         {
 430             gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 431                                   GDK_WINDOW_EDGE_SOUTH_WEST,
 432                                   1,
 433                                   org_x - event.GetX() + GetSize().x ,
 434                                   org_y + event.GetY(),
 435                                   0);
 436         }
 437         else
 438         {
 439             gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 440                                   GDK_WINDOW_EDGE_SOUTH_EAST,
 441                                   1,
 442                                   org_x + event.GetX(),
 443                                   org_y + event.GetY(),
 444                                   0);
 445         }
 446     }
 447     else
 448     {
 449         event.Skip( true );
 450     }
 451 #else
 452     event.Skip( true );
 453 #endif
 454 }
 455
 456 void wxStatusBarGeneric::OnRightDown(wxMouseEvent& event)
 457 {
 458 #ifdef __WXGTK20__
 459     int width, height;
 460     GetClientSize(&width, &height);
 461
 462     if ( ShowsSizeGrip() && (event.GetX() > width-height) )
 463     {
 464         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 465
 466         if (!GTK_IS_WINDOW (ancestor))
 467             return;
 468
 469         GdkWindow *source = GTKGetDrawingWindow();
 470
 471         int org_x = 0;
 472         int org_y = 0;
 473         gdk_window_get_origin( source, &org_x, &org_y );
 474
 475         gtk_window_begin_move_drag (GTK_WINDOW (ancestor),
 476                                 2,
 477                                 org_x + event.GetX(),
 478                                 org_y + event.GetY(),
 479                                 0);
 480     }
 481     else
 482     {
 483         event.Skip( true );
 484     }
 485 #else
 486     event.Skip( true );
 487 #endif
 488 }
 489
 490 #endif // wxUSE_STATUSBAR