src/msw/statbr95.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // Name:        msw/statbr95.cpp
   3 // Purpose:     native implementation of wxStatusBar
   4 // Author:      Vadim Zeitlin
   5 // Modified by:
   6 // Created:     04.04.98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Vadim Zeitlin <zeitlin@dptmaths.ens-cachan.fr>
   9 // Licence:     wxWindows license
  10 ///////////////////////////////////////////////////////////////////////////////
  11
  12 // ============================================================================
  13 // declarations
  14 // ============================================================================
  15
  16 // ----------------------------------------------------------------------------
  17 // headers
  18 // ----------------------------------------------------------------------------
  19
  20 // for compilers that support precompilation, includes "wx.h".
  21 #include "wx/wxprec.h"
  22
  23 #ifdef __BORLANDC__
  24   #pragma hdrstop
  25 #endif
  26
  27 #ifndef WX_PRECOMP
  28   #include "wx/setup.h"
  29   #include "wx/frame.h"
  30   #include "wx/settings.h"
  31   #include "wx/dcclient.h"
  32 #endif
  33
  34 #include "wx/log.h"
  35
  36 #include "wx/generic/statusbr.h"
  37 #include "wx/msw/statbr95.h"
  38
  39 #include  <windows.h>
  40 #include  <windowsx.h>
  41
  42 #ifndef __GNUWIN32__
  43 #include  <commctrl.h>
  44 #endif
  45
  46 #if     USE_NATIVE_STATUSBAR
  47
  48 #if     !USE_SHARED_LIBRARY
  49   IMPLEMENT_DYNAMIC_CLASS(wxStatusBar95, wxStatusBar);
  50
  51   BEGIN_EVENT_TABLE(wxStatusBar95, wxStatusBar)
  52     EVT_PAINT(wxWindow::OnPaint)
  53     EVT_SIZE(wxStatusBar95::OnSize)
  54   END_EVENT_TABLE()
  55 #endif  //USE_SHARED_LIBRARY
  56
  57
  58 // ----------------------------------------------------------------------------
  59 // macros
  60 // ----------------------------------------------------------------------------
  61
  62 // windowsx.h and commctrl.h don't define those, so we do it here
  63 #define StatusBar_SetParts(h, n, w) SendMessage(h, SB_SETPARTS, (WPARAM)n, (LPARAM)w)
  64 #define StatusBar_SetText(h, n, t)  SendMessage(h, SB_SETTEXT, (WPARAM)n, (LPARAM)(LPCSTR)t)
  65 #define StatusBar_GetTextLen(h, n)  LOWORD(SendMessage(h, SB_GETTEXTLENGTH, (WPARAM)n, 0))
  66 #define StatusBar_GetText(h, n, s)  LOWORD(SendMessage(h, SB_GETTEXT, (WPARAM)n, (LPARAM)(LPSTR)s))
  67
  68 #define hwnd      ((HWND)m_hWnd)
  69
  70 // ============================================================================
  71 // implementation
  72 // ============================================================================
  73
  74 // ----------------------------------------------------------------------------
  75 // wxStatusBar95 class
  76 // ----------------------------------------------------------------------------
  77
  78 wxStatusBar95::wxStatusBar95()
  79 {
  80   SetParent(NULL);
  81   m_hWnd = 0;
  82   m_windowId = 0;
  83 }
  84
  85 wxStatusBar95::wxStatusBar95(wxWindow *parent, wxWindowID id, long style)
  86 {
  87   Create(parent, id, style);
  88 }
  89
  90 bool wxStatusBar95::Create(wxWindow *parent, wxWindowID id, long style)
  91 {
  92   SetParent(parent);
  93
  94   m_windowId = id == -1 ? NewControlId() : id;
  95
  96   DWORD wstyle = WS_CHILD | WS_VISIBLE;
  97   if ( style & wxSB_SIZEGRIP )
  98     wstyle |= SBARS_SIZEGRIP;
  99
 100   m_hWnd = (WXHWND)CreateStatusWindow(wstyle,
 101                                       "",
 102                                       (HWND)parent->GetHWND(),
 103                                       m_windowId);
 104   if ( m_hWnd == 0 ) {
 105     wxLogSysError("can't create status bar window");
 106     return FALSE;
 107   }
 108
 109   // this doesn't work: display problems (white 1-2 pixel borders...)
 110   //  SubclassWin(m_hWnd);
 111
 112   return TRUE;
 113 }
 114
 115 void wxStatusBar95::CopyFieldsWidth(const int *widths)
 116 {
 117   if (widths && !m_statusWidths)
 118     m_statusWidths = new int[m_nFields];
 119
 120   if ( widths != NULL ) {
 121     for ( int i = 0; i < m_nFields; i++ )
 122       m_statusWidths[i] = widths[i];
 123   }
 124   else {
 125     delete [] m_statusWidths;
 126     m_statusWidths = NULL;
 127   }
 128 }
 129
 130 void wxStatusBar95::SetFieldsCount(int nFields, const int *widths)
 131 {
 132   wxASSERT( (nFields > 0) && (nFields < 255) );
 133
 134   m_nFields = nFields;
 135
 136   CopyFieldsWidth(widths);
 137   SetFieldsWidth();
 138 }
 139
 140 void wxStatusBar95::SetStatusWidths(int n, const int *widths)
 141 {
 142   // @@ I don't understand what this function is for...
 143   wxASSERT( n == m_nFields );
 144
 145   CopyFieldsWidth(widths);
 146   SetFieldsWidth();
 147 }
 148
 149 void wxStatusBar95::SetFieldsWidth()
 150 {
 151   int *pWidths = new int[m_nFields];
 152
 153   int nWindowWidth, y;
 154   GetClientSize(&nWindowWidth, &y);
 155
 156   if ( m_statusWidths == NULL ) {
 157     // default: all fields have the same width
 158     int nWidth = nWindowWidth / m_nFields;
 159     for ( int i = 0; i < m_nFields; i++ )
 160       pWidths[i] = (i + 1) * nWindowWidth;
 161   }
 162   else {
 163     // -1 doesn't mean the same thing for wxWindows and Win32, recalc
 164     int nTotalWidth = 0,
 165         nVarCount = 0,
 166         i;
 167     for ( i = 0; i < m_nFields; i++ ) {
 168       if ( m_statusWidths[i] == -1 )
 169         nVarCount++;
 170       else
 171         nTotalWidth += m_statusWidths[i];
 172     }
 173
 174     if ( nVarCount == 0 ) {
 175       // wrong! at least one field must be of variable width
 176       wxFAIL;
 177
 178       nVarCount++;
 179     }
 180
 181     int nVarWidth = (nWindowWidth - nTotalWidth) / nVarCount;
 182
 183     // do fill the array
 184     int nCurPos = 0;
 185     for ( i = 0; i < m_nFields; i++ ) {
 186       if ( m_statusWidths[i] == -1 )
 187         nCurPos += nVarWidth;
 188       else
 189         nCurPos += m_statusWidths[i];
 190       pWidths[i] = nCurPos;
 191     }
 192   }
 193
 194   if ( !StatusBar_SetParts(hwnd, m_nFields, pWidths) ) {
 195     wxLogDebug("StatusBar_SetParts failed.");
 196   }
 197
 198   delete [] pWidths;
 199 }
 200
 201 void wxStatusBar95::SetStatusText(const wxString& strText, const int nField)
 202 {
 203   if ( !StatusBar_SetText(hwnd, nField, strText) ) {
 204     wxLogDebug("StatusBar_SetText failed");
 205   }
 206 }
 207
 208 wxString wxStatusBar95::GetStatusText(int nField) const
 209 {
 210   wxASSERT( (nField > 0) && (nField < m_nFields) );
 211
 212   wxString str;
 213   StatusBar_GetText(hwnd, nField,
 214                     str.GetWriteBuf(StatusBar_GetTextLen(hwnd, nField)));
 215   return str;
 216 }
 217
 218 void wxStatusBar95::OnSize(wxSizeEvent& event)
 219 {
 220   FORWARD_WM_SIZE(hwnd, SIZE_RESTORED, event.GetSize().x, event.GetSize().y,
 221                   SendMessage);
 222
 223   // adjust fields widths to the new size
 224   SetFieldsWidth();
 225 }
 226
 227 #endif  //USE_NATIVE_STATUSBAR