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(wxTRANSPARENT);
 243
 244 #ifdef __WXPM__
 245     wxColour vColor;
 246
 247     vColor = wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR);
 248     ::WinFillRect(dc.m_hPS, &dc.m_vRclPaint, vColor.GetPixel());
 249 #endif
 250
 251     for (int i = 0; i < m_nFields; i ++)
 252         DrawField(dc, i);
 253 }
 254
 255 void wxStatusBarGeneric::DrawFieldText(wxDC& dc, int i)
 256 {
 257     int leftMargin = 2;
 258
 259     wxRect rect;
 260     GetFieldRect(i, rect);
 261
 262     wxString text(GetStatusText(i));
 263
 264     wxCoord x = 0, y = 0;
 265
 266     dc.GetTextExtent(text, &x, &y);
 267
 268     int xpos = rect.x + leftMargin;
 269     int ypos = (int) (((rect.height - y) / 2 ) + rect.y + 0.5) ;
 270
 271 #if defined( __WXGTK__ ) || defined(__WXMAC__)
 272     xpos++;
 273     ypos++;
 274 #endif
 275
 276     dc.SetClippingRegion(rect.x, rect.y, rect.width, rect.height);
 277
 278     dc.DrawText(text, xpos, ypos);
 279
 280     dc.DestroyClippingRegion();
 281 }
 282
 283 void wxStatusBarGeneric::DrawField(wxDC& dc, int i)
 284 {
 285     wxRect rect;
 286     GetFieldRect(i, rect);
 287
 288     int style = wxSB_NORMAL;
 289     if (m_statusStyles)
 290         style = m_statusStyles[i];
 291
 292     if (style != wxSB_FLAT)
 293     {
 294         // Draw border
 295         // For wxSB_NORMAL:
 296         // Have grey background, plus 3-d border -
 297         // One black rectangle.
 298         // Inside this, left and top sides - dark grey. Bottom and right -
 299         // white.
 300         // Reverse it for wxSB_RAISED
 301
 302         dc.SetPen((style == wxSB_RAISED) ? m_mediumShadowPen : m_hilightPen);
 303
 304     #ifndef __WXPM__
 305
 306         // Right and bottom lines
 307         dc.DrawLine(rect.x + rect.width, rect.y,
 308                     rect.x + rect.width, rect.y + rect.height);
 309         dc.DrawLine(rect.x + rect.width, rect.y + rect.height,
 310                     rect.x, rect.y + rect.height);
 311
 312         dc.SetPen((style == wxSB_RAISED) ? m_hilightPen : m_mediumShadowPen);
 313
 314         // Left and top lines
 315         dc.DrawLine(rect.x, rect.y + rect.height,
 316                rect.x, rect.y);
 317         dc.DrawLine(rect.x, rect.y,
 318             rect.x + rect.width, rect.y);
 319     #else
 320
 321         dc.DrawLine(rect.x + rect.width, rect.height + 2,
 322                     rect.x, rect.height + 2);
 323         dc.DrawLine(rect.x + rect.width, rect.y,
 324                     rect.x + rect.width, rect.y + rect.height);
 325
 326         dc.SetPen((style == wxSB_RAISED) ? m_hilightPen : m_mediumShadowPen);
 327         dc.DrawLine(rect.x, rect.y,
 328                     rect.x + rect.width, rect.y);
 329         dc.DrawLine(rect.x, rect.y + rect.height,
 330                    rect.x, rect.y);
 331
 332 #endif
 333     }
 334
 335     DrawFieldText(dc, i);
 336 }
 337
 338   // Get the position and size of the field's internal bounding rectangle
 339 bool wxStatusBarGeneric::GetFieldRect(int n, wxRect& rect) const
 340 {
 341     wxCHECK_MSG( (n >= 0) && (n < m_nFields), false,
 342                  _T("invalid status bar field index") );
 343
 344     // FIXME: workarounds for OS/2 bugs have nothing to do here (VZ)
 345     int width, height;
 346 #ifdef __WXPM__
 347     GetSize(&width, &height);
 348 #else
 349     GetClientSize(&width, &height);
 350 #endif
 351
 352     // we cache m_widthsAbs between calls and recompute it if client
 353     // width has changed (or when it is initially empty)
 354     if ( m_widthsAbs.IsEmpty() || (m_lastClientWidth != width) )
 355     {
 356         wxConstCast(this, wxStatusBarGeneric)->
 357             m_widthsAbs = CalculateAbsWidths(width);
 358         // remember last width for which we have recomputed the widths in pixels
 359         wxConstCast(this, wxStatusBarGeneric)->
 360             m_lastClientWidth = width;
 361     }
 362
 363     rect.x = 0;
 364     for ( int i = 0; i < n; i++ )
 365     {
 366         rect.x += m_widthsAbs[i];
 367     }
 368
 369     rect.x += m_borderX;
 370     rect.y = m_borderY;
 371
 372     rect.width = m_widthsAbs[n] - 2*m_borderX;
 373     rect.height = height - 2*m_borderY;
 374
 375     return true;
 376 }
 377
 378 // Initialize colours
 379 void wxStatusBarGeneric::InitColours()
 380 {
 381     // Shadow colours
 382 #if defined(__WXMSW__) || defined(__WXMAC__)
 383     wxColour mediumShadowColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW));
 384     m_mediumShadowPen = wxPen(mediumShadowColour, 1, wxSOLID);
 385
 386     wxColour hilightColour(wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT));
 387     m_hilightPen = wxPen(hilightColour, 1, wxSOLID);
 388 #elif defined(__WXPM__)
 389     m_mediumShadowPen = wxPen(wxColour(127, 127, 127), 1, wxSOLID);
 390     m_hilightPen = *wxWHITE_PEN;
 391
 392     SetBackgroundColour(*wxLIGHT_GREY);
 393     SetForegroundColour(*wxBLACK);
 394 #else
 395     m_mediumShadowPen = *wxGREY_PEN;
 396     m_hilightPen = *wxWHITE_PEN;
 397 #endif
 398 }
 399
 400 // Responds to colour changes, and passes event on to children.
 401 void wxStatusBarGeneric::OnSysColourChanged(wxSysColourChangedEvent& event)
 402 {
 403     InitColours();
 404
 405     // Propagate the event to the non-top-level children
 406     wxWindow::OnSysColourChanged(event);
 407 }
 408
 409 void wxStatusBarGeneric::SetMinHeight(int height)
 410 {
 411     // check that this min height is not less than minimal height for the
 412     // current font
 413     wxClientDC dc(this);
 414     wxCoord y;
 415     dc.GetTextExtent( wxT("X"), NULL, &y );
 416
 417     if ( height > (11*y)/10 )
 418     {
 419         SetSize(wxDefaultCoord, wxDefaultCoord, wxDefaultCoord, height + 2*m_borderY);
 420     }
 421 }
 422
 423 void wxStatusBarGeneric::OnLeftDown(wxMouseEvent& event)
 424 {
 425 #ifdef __WXGTK20__
 426     int width, height;
 427     GetClientSize(&width, &height);
 428
 429     if ( ShowsSizeGrip()  && (event.GetX() > width-height) )
 430     {
 431         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 432
 433         if (!GTK_IS_WINDOW (ancestor))
 434             return;
 435
 436         GdkWindow *source = GTKGetDrawingWindow();
 437
 438         int org_x = 0;
 439         int org_y = 0;
 440         gdk_window_get_origin( source, &org_x, &org_y );
 441
 442         if (GetLayoutDirection() == wxLayout_RightToLeft)
 443         {
 444             gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 445                                   GDK_WINDOW_EDGE_SOUTH_WEST,
 446                                   1,
 447                                   org_x - event.GetX() + GetSize().x ,
 448                                   org_y + event.GetY(),
 449                                   0);
 450         }
 451         else
 452         {
 453             gtk_window_begin_resize_drag (GTK_WINDOW (ancestor),
 454                                   GDK_WINDOW_EDGE_SOUTH_EAST,
 455                                   1,
 456                                   org_x + event.GetX(),
 457                                   org_y + event.GetY(),
 458                                   0);
 459         }
 460     }
 461     else
 462     {
 463         event.Skip( true );
 464     }
 465 #else
 466     event.Skip( true );
 467 #endif
 468 }
 469
 470 void wxStatusBarGeneric::OnRightDown(wxMouseEvent& event)
 471 {
 472 #ifdef __WXGTK20__
 473     int width, height;
 474     GetClientSize(&width, &height);
 475
 476     if ( ShowsSizeGrip() && (event.GetX() > width-height) )
 477     {
 478         GtkWidget *ancestor = gtk_widget_get_toplevel( m_widget );
 479
 480         if (!GTK_IS_WINDOW (ancestor))
 481             return;
 482
 483         GdkWindow *source = GTKGetDrawingWindow();
 484
 485         int org_x = 0;
 486         int org_y = 0;
 487         gdk_window_get_origin( source, &org_x, &org_y );
 488
 489         gtk_window_begin_move_drag (GTK_WINDOW (ancestor),
 490                                 2,
 491                                 org_x + event.GetX(),
 492                                 org_y + event.GetY(),
 493                                 0);
 494     }
 495     else
 496     {
 497         event.Skip( true );
 498     }
 499 #else
 500     event.Skip( true );
 501 #endif
 502 }
 503
 504 #endif // wxUSE_STATUSBAR