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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 // 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 return TRUE;
119 }
120
121 wxStatusBar95::~wxStatusBar95()
122 {
123 }
124
125 void wxStatusBar95::SetFieldsCount(int nFields, const int *widths)
126 {
127 // this is a Windows limitation
128 wxASSERT_MSG( (nFields > 0) && (nFields < 255), _T("too many fields") );
129
130 wxStatusBarBase::SetFieldsCount(nFields, widths);
131
132 SetFieldsWidth();
133 }
134
135 void wxStatusBar95::SetStatusWidths(int n, const int widths[])
136 {
137 wxStatusBarBase::SetStatusWidths(n, widths);
138
139 SetFieldsWidth();
140 }
141
142 void wxStatusBar95::SetFieldsWidth()
143 {
144 if ( !m_nFields )
145 return;
146
147 int aBorders[3];
148 SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders);
149
150 int extraWidth = aBorders[2]; // space between fields
151
152 wxArrayInt widthsAbs =
153 CalculateAbsWidths(GetClientSize().x - extraWidth*(m_nFields - 1));
154
155 int *pWidths = new int[m_nFields];
156
157 int nCurPos = 0;
158 for ( int i = 0; i < m_nFields; i++ ) {
159 nCurPos += widthsAbs[i] + extraWidth;
160 pWidths[i] = nCurPos;
161 }
162
163 if ( !StatusBar_SetParts(GetHwnd(), m_nFields, pWidths) ) {
164 wxLogLastError(wxT("StatusBar_SetParts"));
165 }
166
167 delete [] pWidths;
168 }
169
170 void wxStatusBar95::SetStatusText(const wxString& strText, int nField)
171 {
172 wxCHECK_RET( (nField >= 0) && (nField < m_nFields),
173 _T("invalid statusbar field index") );
174
175 if ( !StatusBar_SetText(GetHwnd(), nField, strText) )
176 {
177 wxLogLastError(wxT("StatusBar_SetText"));
178 }
179 }
180
181 wxString wxStatusBar95::GetStatusText(int nField) const
182 {
183 wxCHECK_MSG( (nField >= 0) && (nField < m_nFields), wxEmptyString,
184 _T("invalid statusbar field index") );
185
186 wxString str;
187 int len = StatusBar_GetTextLen(GetHwnd(), nField);
188 if ( len > 0 )
189 {
190 StatusBar_GetText(GetHwnd(), nField, str.GetWriteBuf(len));
191 str.UngetWriteBuf();
192 }
193
194 return str;
195 }
196
197 int wxStatusBar95::GetBorderX() const
198 {
199 int aBorders[3];
200 SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders);
201
202 return aBorders[0];
203 }
204
205 int wxStatusBar95::GetBorderY() const
206 {
207 int aBorders[3];
208 SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders);
209
210 return aBorders[1];
211 }
212
213 void wxStatusBar95::SetMinHeight(int height)
214 {
215 SendMessage(GetHwnd(), SB_SETMINHEIGHT, height + 2*GetBorderY(), 0);
216
217 // have to send a (dummy) WM_SIZE to redraw it now
218 SendMessage(GetHwnd(), WM_SIZE, 0, 0);
219 }
220
221 bool wxStatusBar95::GetFieldRect(int i, wxRect& rect) const
222 {
223 wxCHECK_MSG( (i >= 0) && (i < m_nFields), FALSE,
224 _T("invalid statusbar field index") );
225
226 RECT r;
227 if ( !::SendMessage(GetHwnd(), SB_GETRECT, i, (LPARAM)&r) )
228 {
229 wxLogLastError(wxT("SendMessage(SB_GETRECT)"));
230 }
231
232 wxCopyRECTToRect(r, rect);
233
234 return TRUE;
235 }
236
237 void wxStatusBar95::DoMoveWindow(int x, int y, int width, int height)
238 {
239 // the status bar wnd proc must be forwarded the WM_SIZE message whenever
240 // the stat bar position/size is changed because it normally positions the
241 // control itself along bottom or top side of the parent window - failing
242 // to do so will result in nasty visual effects
243 FORWARD_WM_SIZE(GetHwnd(), SIZE_RESTORED, x, y, SendMessage);
244
245 // but now, when the standard status bar wnd proc did all it wanted to do,
246 // move the status bar to its correct location - usually this call may be
247 // omitted because for normal status bars (positioned along the bottom
248 // edge) the position is already set correctly, but if the user wants to
249 // position them in some exotic location, this is really needed
250 wxWindow::DoMoveWindow(x, y, width, height);
251
252 // adjust fields widths to the new size
253 SetFieldsWidth();
254
255 // we have to trigger wxSizeEvent if there are children window in status
256 // bar because GetFieldRect returned incorrect (not updated) values up to
257 // here, which almost certainly resulted in incorrectly redrawn statusbar
258 if ( m_children.GetCount() > 0 )
259 {
260 wxSizeEvent event(GetClientSize(), m_windowId);
261 event.SetEventObject(this);
262 GetEventHandler()->ProcessEvent(event);
263 }
264 }
265
266 #endif // __WIN95__ && wxUSE_NATIVE_STATUSBAR
267