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 #ifdef __GNUG__
  13 #pragma implementation "statbr95.h"
  14 #endif
  15
  16 // ============================================================================
  17 // declarations
  18 // ============================================================================
  19
  20 // ----------------------------------------------------------------------------
  21 // headers
  22 // ----------------------------------------------------------------------------
  23
  24 // for compilers that support precompilation, includes "wx.h".
  25 #include "wx/wxprec.h"
  26
  27 #ifdef __BORLANDC__
  28   #pragma hdrstop
  29 #endif
  30
  31 #ifndef WX_PRECOMP
  32   #include "wx/setup.h"
  33   #include "wx/frame.h"
  34   #include "wx/settings.h"
  35   #include "wx/dcclient.h"
  36 #endif
  37
  38 #include "wx/log.h"
  39
  40 #include "wx/generic/statusbr.h"
  41 #include "wx/msw/statbr95.h"
  42
  43 #include  <windows.h>
  44 #include  <windowsx.h>
  45
  46 #ifndef __GNUWIN32__
  47 #include  <commctrl.h>
  48 #endif
  49
  50 #if     USE_NATIVE_STATUSBAR
  51
  52 #if     !USE_SHARED_LIBRARY
  53   IMPLEMENT_DYNAMIC_CLASS(wxStatusBar95, wxStatusBar);
  54
  55   BEGIN_EVENT_TABLE(wxStatusBar95, wxStatusBar)
  56     EVT_PAINT(wxWindow::OnPaint)
  57     EVT_SIZE(wxStatusBar95::OnSize)
  58   END_EVENT_TABLE()
  59 #endif  //USE_SHARED_LIBRARY
  60
  61
  62 // ----------------------------------------------------------------------------
  63 // macros
  64 // ----------------------------------------------------------------------------
  65
  66 // windowsx.h and commctrl.h don't define those, so we do it here
  67 #define StatusBar_SetParts(h, n, w) SendMessage(h, SB_SETPARTS, (WPARAM)n, (LPARAM)w)
  68 #define StatusBar_SetText(h, n, t)  SendMessage(h, SB_SETTEXT, (WPARAM)n, (LPARAM)(LPCSTR)t)
  69 #define StatusBar_GetTextLen(h, n)  LOWORD(SendMessage(h, SB_GETTEXTLENGTH, (WPARAM)n, 0))
  70 #define StatusBar_GetText(h, n, s)  LOWORD(SendMessage(h, SB_GETTEXT, (WPARAM)n, (LPARAM)(LPSTR)s))
  71
  72 #define hwnd      ((HWND)m_hWnd)
  73
  74 // ============================================================================
  75 // implementation
  76 // ============================================================================
  77
  78 // ----------------------------------------------------------------------------
  79 // wxStatusBar95 class
  80 // ----------------------------------------------------------------------------
  81
  82 wxStatusBar95::wxStatusBar95()
  83 {
  84   SetParent(NULL);
  85   m_hWnd = 0;
  86   m_windowId = 0;
  87 }
  88
  89 wxStatusBar95::wxStatusBar95(wxWindow *parent, wxWindowID id, long style)
  90 {
  91   Create(parent, id, style);
  92 }
  93
  94 bool wxStatusBar95::Create(wxWindow *parent, wxWindowID id, long style)
  95 {
  96   SetParent(parent);
  97
  98   m_windowId = id == -1 ? NewControlId() : id;
  99
 100   DWORD wstyle = WS_CHILD | WS_VISIBLE;
 101   if ( style & wxST_SIZEGRIP )
 102     wstyle |= SBARS_SIZEGRIP;
 103
 104   m_hWnd = (WXHWND)CreateStatusWindow(wstyle,
 105                                       "",
 106                                       (HWND)parent->GetHWND(),
 107                                       m_windowId);
 108   if ( m_hWnd == 0 ) {
 109     wxLogSysError("can't create status bar window");
 110     return FALSE;
 111   }
 112
 113   // this doesn't work: display problems (white 1-2 pixel borders...)
 114   //  SubclassWin(m_hWnd);
 115
 116   return TRUE;
 117 }
 118
 119 void wxStatusBar95::CopyFieldsWidth(int *widths)
 120 {
 121   if (widths && !m_statusWidths)
 122     m_statusWidths = new int[m_nFields];
 123
 124   if ( widths != NULL ) {
 125     for ( int i = 0; i < m_nFields; i++ )
 126       m_statusWidths[i] = widths[i];
 127   }
 128   else {
 129     delete [] m_statusWidths;
 130     m_statusWidths = NULL;
 131   }
 132 }
 133
 134 void wxStatusBar95::SetFieldsCount(int nFields, int *widths)
 135 {
 136   wxASSERT( (nFields > 0) && (nFields < 255) );
 137
 138   m_nFields = nFields;
 139
 140   CopyFieldsWidth(widths);
 141   SetFieldsWidth();
 142 }
 143
 144 void wxStatusBar95::SetStatusWidths(int n, int *widths)
 145 {
 146   // @@ I don't understand what this function is for...
 147   wxASSERT( n == m_nFields );
 148
 149   CopyFieldsWidth(widths);
 150   SetFieldsWidth();
 151 }
 152
 153 void wxStatusBar95::SetFieldsWidth()
 154 {
 155   int *pWidths = new int[m_nFields];
 156
 157   int nWindowWidth, y;
 158   GetClientSize(&nWindowWidth, &y);
 159
 160   if ( m_statusWidths == NULL ) {
 161     // default: all fields have the same width
 162     int nWidth = nWindowWidth / m_nFields;
 163     for ( int i = 0; i < m_nFields; i++ )
 164       pWidths[i] = (i + 1) * nWidth;
 165   }
 166   else {
 167     // -1 doesn't mean the same thing for wxWindows and Win32, recalc
 168     int nTotalWidth = 0,
 169         nVarCount = 0,
 170         i;
 171     for ( i = 0; i < m_nFields; i++ ) {
 172       if ( m_statusWidths[i] == -1 )
 173         nVarCount++;
 174       else
 175         nTotalWidth += m_statusWidths[i];
 176     }
 177
 178     if ( nVarCount == 0 ) {
 179       // wrong! at least one field must be of variable width
 180       wxFAIL;
 181
 182       nVarCount++;
 183     }
 184
 185     int nVarWidth = (nWindowWidth - nTotalWidth) / nVarCount;
 186
 187     // do fill the array
 188     int nCurPos = 0;
 189     for ( i = 0; i < m_nFields; i++ ) {
 190       if ( m_statusWidths[i] == -1 )
 191         nCurPos += nVarWidth;
 192       else
 193         nCurPos += m_statusWidths[i];
 194       pWidths[i] = nCurPos;
 195     }
 196   }
 197
 198   if ( !StatusBar_SetParts(hwnd, m_nFields, pWidths) ) {
 199     wxLogDebug("StatusBar_SetParts failed.");
 200   }
 201
 202   delete [] pWidths;
 203 }
 204
 205 void wxStatusBar95::SetStatusText(const wxString& strText, int nField)
 206 {
 207   if ( !StatusBar_SetText(hwnd, nField, strText) ) {
 208     wxLogDebug("StatusBar_SetText failed");
 209   }
 210 }
 211
 212 wxString wxStatusBar95::GetStatusText(int nField) const
 213 {
 214   wxASSERT( (nField > -1) && (nField < m_nFields) );
 215
 216   wxString str("");
 217   int len = StatusBar_GetTextLen(hwnd, nField);
 218   if (len > 0)
 219   {
 220         StatusBar_GetText(hwnd, nField, str.GetWriteBuf(len));
 221   }
 222   return str;
 223 }
 224
 225 void wxStatusBar95::OnSize(wxSizeEvent& event)
 226 {
 227   FORWARD_WM_SIZE(hwnd, SIZE_RESTORED, event.GetSize().x, event.GetSize().y,
 228                   SendMessage);
 229
 230   // adjust fields widths to the new size
 231   SetFieldsWidth();
 232 }
 233
 234 #endif  //USE_NATIVE_STATUSBAR