| 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 licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | #ifdef __GNUG__ |
| 13 | #pragma implementation "statbr95.h" |
| 14 | #endif |
| 15 | |
| 16 | // for compilers that support precompilation, includes "wx.h". |
| 17 | #include "wx/wxprec.h" |
| 18 | |
| 19 | #ifdef __BORLANDC__ |
| 20 | #pragma hdrstop |
| 21 | #endif |
| 22 | |
| 23 | #ifndef WX_PRECOMP |
| 24 | #include "wx/setup.h" |
| 25 | #include "wx/frame.h" |
| 26 | #include "wx/settings.h" |
| 27 | #include "wx/dcclient.h" |
| 28 | #endif |
| 29 | |
| 30 | #if defined(__WIN95__) && wxUSE_NATIVE_STATUSBAR |
| 31 | |
| 32 | #include "wx/intl.h" |
| 33 | #include "wx/log.h" |
| 34 | #include "wx/statusbr.h" |
| 35 | |
| 36 | #include "wx/msw/private.h" |
| 37 | #include <windowsx.h> |
| 38 | |
| 39 | #if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__)) |
| 40 | #include <commctrl.h> |
| 41 | #endif |
| 42 | |
| 43 | // ---------------------------------------------------------------------------- |
| 44 | // macros |
| 45 | // ---------------------------------------------------------------------------- |
| 46 | |
| 47 | // windowsx.h and commctrl.h don't define those, so we do it here |
| 48 | #define StatusBar_SetParts(h, n, w) SendMessage(h, SB_SETPARTS, (WPARAM)n, (LPARAM)w) |
| 49 | #define StatusBar_SetText(h, n, t) SendMessage(h, SB_SETTEXT, (WPARAM)n, (LPARAM)(LPCTSTR)t) |
| 50 | #define StatusBar_GetTextLen(h, n) LOWORD(SendMessage(h, SB_GETTEXTLENGTH, (WPARAM)n, 0)) |
| 51 | #define StatusBar_GetText(h, n, s) LOWORD(SendMessage(h, SB_GETTEXT, (WPARAM)n, (LPARAM)(LPTSTR)s)) |
| 52 | |
| 53 | // ============================================================================ |
| 54 | // implementation |
| 55 | // ============================================================================ |
| 56 | |
| 57 | // ---------------------------------------------------------------------------- |
| 58 | // wxStatusBar95 class |
| 59 | // ---------------------------------------------------------------------------- |
| 60 | |
| 61 | wxStatusBar95::wxStatusBar95() |
| 62 | { |
| 63 | SetParent(NULL); |
| 64 | m_hWnd = 0; |
| 65 | m_windowId = 0; |
| 66 | } |
| 67 | |
| 68 | bool wxStatusBar95::Create(wxWindow *parent, |
| 69 | wxWindowID id, |
| 70 | long style, |
| 71 | const wxString& name) |
| 72 | { |
| 73 | wxCHECK_MSG( parent, FALSE, wxT("status bar must have a parent") ); |
| 74 | |
| 75 | SetName(name); |
| 76 | SetWindowStyleFlag(style); |
| 77 | SetParent(parent); |
| 78 | |
| 79 | parent->AddChild(this); |
| 80 | |
| 81 | m_windowId = id == -1 ? NewControlId() : id; |
| 82 | |
| 83 | DWORD wstyle = WS_CHILD | WS_VISIBLE; |
| 84 | |
| 85 | if ( style & wxCLIP_SIBLINGS ) |
| 86 | wstyle |= WS_CLIPSIBLINGS; |
| 87 | |
| 88 | // setting SBARS_SIZEGRIP is perfectly useless: it's always on by default |
| 89 | // (at least in the version of comctl32.dll I'm using), and the only way to |
| 90 | // turn it off is to use CCS_TOP style - as we position the status bar |
| 91 | // manually anyhow (see DoMoveWindow), use CCS_TOP style if wxST_SIZEGRIP |
| 92 | // is not given |
| 93 | if ( !(style & wxST_SIZEGRIP) ) |
| 94 | { |
| 95 | wstyle |= CCS_TOP; |
| 96 | } |
| 97 | else |
| 98 | { |
| 99 | // may be some versions of comctl32.dll do need it - anyhow, it won't |
| 100 | // do any harm |
| 101 | wstyle |= SBARS_SIZEGRIP; |
| 102 | } |
| 103 | |
| 104 | m_hWnd = (WXHWND)CreateStatusWindow(wstyle, |
| 105 | wxEmptyString, |
| 106 | GetHwndOf(parent), |
| 107 | m_windowId); |
| 108 | if ( m_hWnd == 0 ) |
| 109 | { |
| 110 | wxLogSysError(_("Failed to create a status bar.")); |
| 111 | |
| 112 | return FALSE; |
| 113 | } |
| 114 | |
| 115 | SetFieldsCount(1); |
| 116 | SubclassWin(m_hWnd); |
| 117 | |
| 118 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR)); |
| 119 | |
| 120 | return TRUE; |
| 121 | } |
| 122 | |
| 123 | wxStatusBar95::~wxStatusBar95() |
| 124 | { |
| 125 | } |
| 126 | |
| 127 | void wxStatusBar95::SetFieldsCount(int nFields, const int *widths) |
| 128 | { |
| 129 | // this is a Windows limitation |
| 130 | wxASSERT_MSG( (nFields > 0) && (nFields < 255), _T("too many fields") ); |
| 131 | |
| 132 | wxStatusBarBase::SetFieldsCount(nFields, widths); |
| 133 | |
| 134 | SetFieldsWidth(); |
| 135 | } |
| 136 | |
| 137 | void wxStatusBar95::SetStatusWidths(int n, const int widths[]) |
| 138 | { |
| 139 | wxStatusBarBase::SetStatusWidths(n, widths); |
| 140 | |
| 141 | SetFieldsWidth(); |
| 142 | } |
| 143 | |
| 144 | void wxStatusBar95::SetFieldsWidth() |
| 145 | { |
| 146 | if ( !m_nFields ) |
| 147 | return; |
| 148 | |
| 149 | int aBorders[3]; |
| 150 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders); |
| 151 | |
| 152 | int extraWidth = aBorders[2]; // space between fields |
| 153 | |
| 154 | wxArrayInt widthsAbs = |
| 155 | CalculateAbsWidths(GetClientSize().x - extraWidth*(m_nFields - 1)); |
| 156 | |
| 157 | int *pWidths = new int[m_nFields]; |
| 158 | |
| 159 | int nCurPos = 0; |
| 160 | for ( int i = 0; i < m_nFields; i++ ) { |
| 161 | nCurPos += widthsAbs[i] + extraWidth; |
| 162 | pWidths[i] = nCurPos; |
| 163 | } |
| 164 | |
| 165 | if ( !StatusBar_SetParts(GetHwnd(), m_nFields, pWidths) ) { |
| 166 | wxLogLastError(wxT("StatusBar_SetParts")); |
| 167 | } |
| 168 | |
| 169 | delete [] pWidths; |
| 170 | } |
| 171 | |
| 172 | void wxStatusBar95::SetStatusText(const wxString& strText, int nField) |
| 173 | { |
| 174 | wxCHECK_RET( (nField >= 0) && (nField < m_nFields), |
| 175 | _T("invalid statusbar field index") ); |
| 176 | |
| 177 | if ( !StatusBar_SetText(GetHwnd(), nField, strText) ) |
| 178 | { |
| 179 | wxLogLastError(wxT("StatusBar_SetText")); |
| 180 | } |
| 181 | } |
| 182 | |
| 183 | wxString wxStatusBar95::GetStatusText(int nField) const |
| 184 | { |
| 185 | wxCHECK_MSG( (nField >= 0) && (nField < m_nFields), wxEmptyString, |
| 186 | _T("invalid statusbar field index") ); |
| 187 | |
| 188 | wxString str; |
| 189 | int len = StatusBar_GetTextLen(GetHwnd(), nField); |
| 190 | if ( len > 0 ) |
| 191 | { |
| 192 | StatusBar_GetText(GetHwnd(), nField, str.GetWriteBuf(len)); |
| 193 | str.UngetWriteBuf(); |
| 194 | } |
| 195 | |
| 196 | return str; |
| 197 | } |
| 198 | |
| 199 | int wxStatusBar95::GetBorderX() const |
| 200 | { |
| 201 | int aBorders[3]; |
| 202 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders); |
| 203 | |
| 204 | return aBorders[0]; |
| 205 | } |
| 206 | |
| 207 | int wxStatusBar95::GetBorderY() const |
| 208 | { |
| 209 | int aBorders[3]; |
| 210 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders); |
| 211 | |
| 212 | return aBorders[1]; |
| 213 | } |
| 214 | |
| 215 | void wxStatusBar95::SetMinHeight(int height) |
| 216 | { |
| 217 | SendMessage(GetHwnd(), SB_SETMINHEIGHT, height + 2*GetBorderY(), 0); |
| 218 | |
| 219 | // have to send a (dummy) WM_SIZE to redraw it now |
| 220 | SendMessage(GetHwnd(), WM_SIZE, 0, 0); |
| 221 | } |
| 222 | |
| 223 | bool wxStatusBar95::GetFieldRect(int i, wxRect& rect) const |
| 224 | { |
| 225 | wxCHECK_MSG( (i >= 0) && (i < m_nFields), FALSE, |
| 226 | _T("invalid statusbar field index") ); |
| 227 | |
| 228 | RECT r; |
| 229 | if ( !::SendMessage(GetHwnd(), SB_GETRECT, i, (LPARAM)&r) ) |
| 230 | { |
| 231 | wxLogLastError(wxT("SendMessage(SB_GETRECT)")); |
| 232 | } |
| 233 | |
| 234 | wxCopyRECTToRect(r, rect); |
| 235 | |
| 236 | return TRUE; |
| 237 | } |
| 238 | |
| 239 | void wxStatusBar95::DoMoveWindow(int x, int y, int width, int height) |
| 240 | { |
| 241 | // the status bar wnd proc must be forwarded the WM_SIZE message whenever |
| 242 | // the stat bar position/size is changed because it normally positions the |
| 243 | // control itself along bottom or top side of the parent window - failing |
| 244 | // to do so will result in nasty visual effects |
| 245 | FORWARD_WM_SIZE(GetHwnd(), SIZE_RESTORED, x, y, SendMessage); |
| 246 | |
| 247 | // but now, when the standard status bar wnd proc did all it wanted to do, |
| 248 | // move the status bar to its correct location - usually this call may be |
| 249 | // omitted because for normal status bars (positioned along the bottom |
| 250 | // edge) the position is already set correctly, but if the user wants to |
| 251 | // position them in some exotic location, this is really needed |
| 252 | wxWindow::DoMoveWindow(x, y, width, height); |
| 253 | |
| 254 | // adjust fields widths to the new size |
| 255 | SetFieldsWidth(); |
| 256 | |
| 257 | // we have to trigger wxSizeEvent if there are children window in status |
| 258 | // bar because GetFieldRect returned incorrect (not updated) values up to |
| 259 | // here, which almost certainly resulted in incorrectly redrawn statusbar |
| 260 | if ( m_children.GetCount() > 0 ) |
| 261 | { |
| 262 | wxSizeEvent event(GetClientSize(), m_windowId); |
| 263 | event.SetEventObject(this); |
| 264 | GetEventHandler()->ProcessEvent(event); |
| 265 | } |
| 266 | } |
| 267 | |
| 268 | #endif // __WIN95__ && wxUSE_NATIVE_STATUSBAR |
| 269 | |