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1 ///////////////////////////////////////////////////////////////////////////////
2 // Name: src/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 // 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 && wxUSE_NATIVE_STATUSBAR
20
21 #include "wx/statusbr.h"
22
23 #ifndef WX_PRECOMP
24 #include "wx/msw/wrapcctl.h" // include <commctrl.h> "properly"
25 #include "wx/frame.h"
26 #include "wx/settings.h"
27 #include "wx/dcclient.h"
28 #include "wx/intl.h"
29 #include "wx/log.h"
30 #endif
31
32 #include "wx/msw/private.h"
33 #include <windowsx.h>
34
35 #if wxUSE_UXTHEME
36 #include "wx/msw/uxtheme.h"
37 #endif
38
39 // ----------------------------------------------------------------------------
40 // macros
41 // ----------------------------------------------------------------------------
42
43 // windowsx.h and commctrl.h don't define those, so we do it here
44 #define StatusBar_SetParts(h, n, w) SendMessage(h, SB_SETPARTS, (WPARAM)n, (LPARAM)w)
45 #define StatusBar_SetText(h, n, t) SendMessage(h, SB_SETTEXT, (WPARAM)n, (LPARAM)(LPCTSTR)t)
46 #define StatusBar_GetTextLen(h, n) LOWORD(SendMessage(h, SB_GETTEXTLENGTH, (WPARAM)n, 0))
47 #define StatusBar_GetText(h, n, s) LOWORD(SendMessage(h, SB_GETTEXT, (WPARAM)n, (LPARAM)(LPTSTR)s))
48
49 // ============================================================================
50 // implementation
51 // ============================================================================
52
53 // ----------------------------------------------------------------------------
54 // wxStatusBar95 class
55 // ----------------------------------------------------------------------------
56
57 wxStatusBar95::wxStatusBar95()
58 {
59 SetParent(NULL);
60 m_hWnd = 0;
61 m_windowId = 0;
62 }
63
64 bool wxStatusBar95::Create(wxWindow *parent,
65 wxWindowID id,
66 long style,
67 const wxString& name)
68 {
69 wxCHECK_MSG( parent, false, wxT("status bar must have a parent") );
70
71 SetName(name);
72 SetWindowStyleFlag(style);
73 SetParent(parent);
74
75 parent->AddChild(this);
76
77 m_windowId = id == wxID_ANY ? NewControlId() : id;
78
79 DWORD wstyle = WS_CHILD | WS_VISIBLE;
80
81 if ( style & wxCLIP_SIBLINGS )
82 wstyle |= WS_CLIPSIBLINGS;
83
84 // setting SBARS_SIZEGRIP is perfectly useless: it's always on by default
85 // (at least in the version of comctl32.dll I'm using), and the only way to
86 // turn it off is to use CCS_TOP style - as we position the status bar
87 // manually anyhow (see DoMoveWindow), use CCS_TOP style if wxST_SIZEGRIP
88 // is not given
89 if ( !(style & wxST_SIZEGRIP) )
90 {
91 wstyle |= CCS_TOP;
92 }
93 else
94 {
95 #ifndef __WXWINCE__
96 // may be some versions of comctl32.dll do need it - anyhow, it won't
97 // do any harm
98 wstyle |= SBARS_SIZEGRIP;
99 #endif
100 }
101
102 m_hWnd = (WXHWND)CreateStatusWindow(wstyle,
103 wxEmptyString,
104 GetHwndOf(parent),
105 m_windowId);
106 if ( m_hWnd == 0 )
107 {
108 wxLogSysError(_("Failed to create a status bar."));
109
110 return false;
111 }
112
113 SetFieldsCount(1);
114 SubclassWin(m_hWnd);
115 InheritAttributes();
116
117 SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR));
118
119 // we must refresh the frame size when the statusbar is created, because
120 // its client area might change
121 wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
122 if ( frame )
123 {
124 frame->SendSizeEvent();
125 }
126
127 return true;
128 }
129
130 wxStatusBar95::~wxStatusBar95()
131 {
132 // we must refresh the frame size when the statusbar is deleted but the
133 // frame is not - otherwise statusbar leaves a hole in the place it used to
134 // occupy
135 wxFrame *frame = wxDynamicCast(GetParent(), wxFrame);
136 if ( frame && !frame->IsBeingDeleted() )
137 {
138 frame->SendSizeEvent();
139 }
140 }
141
142 void wxStatusBar95::SetFieldsCount(int nFields, const int *widths)
143 {
144 // this is a Windows limitation
145 wxASSERT_MSG( (nFields > 0) && (nFields < 255), _T("too many fields") );
146
147 wxStatusBarBase::SetFieldsCount(nFields, widths);
148
149 SetFieldsWidth();
150 }
151
152 void wxStatusBar95::SetStatusWidths(int n, const int widths[])
153 {
154 wxStatusBarBase::SetStatusWidths(n, widths);
155
156 SetFieldsWidth();
157 }
158
159 void wxStatusBar95::SetFieldsWidth()
160 {
161 if ( !m_nFields )
162 return;
163
164 int aBorders[3];
165 SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders);
166
167 int extraWidth = aBorders[2]; // space between fields
168
169 wxArrayInt widthsAbs =
170 CalculateAbsWidths(GetClientSize().x - extraWidth*(m_nFields - 1));
171
172 int *pWidths = new int[m_nFields];
173
174 int nCurPos = 0;
175 for ( int i = 0; i < m_nFields; i++ ) {
176 nCurPos += widthsAbs[i] + extraWidth;
177 pWidths[i] = nCurPos;
178 }
179
180 if ( !StatusBar_SetParts(GetHwnd(), m_nFields, pWidths) ) {
181 wxLogLastError(wxT("StatusBar_SetParts"));
182 }
183
184 delete [] pWidths;
185 }
186
187 void wxStatusBar95::SetStatusText(const wxString& strText, int nField)
188 {
189 wxCHECK_RET( (nField >= 0) && (nField < m_nFields),
190 _T("invalid statusbar field index") );
191
192 // Get field style, if any
193 int style;
194 if (m_statusStyles)
195 {
196 switch(m_statusStyles[nField])
197 {
198 case wxSB_RAISED:
199 style = SBT_POPOUT;
200 break;
201 case wxSB_FLAT:
202 style = SBT_NOBORDERS;
203 break;
204 case wxSB_NORMAL:
205 default:
206 style = 0;
207 break;
208 }
209 }
210 else
211 style = 0;
212
213 // Pass both field number and style. MSDN library doesn't mention
214 // that nField and style have to be 'ORed'
215 if ( !StatusBar_SetText(GetHwnd(), nField | style, strText) )
216 {
217 wxLogLastError(wxT("StatusBar_SetText"));
218 }
219 }
220
221 wxString wxStatusBar95::GetStatusText(int nField) const
222 {
223 wxCHECK_MSG( (nField >= 0) && (nField < m_nFields), wxEmptyString,
224 _T("invalid statusbar field index") );
225
226 wxString str;
227 int len = StatusBar_GetTextLen(GetHwnd(), nField);
228 if ( len > 0 )
229 {
230 StatusBar_GetText(GetHwnd(), nField, wxStringBuffer(str, len));
231 }
232
233 return str;
234 }
235
236 int wxStatusBar95::GetBorderX() const
237 {
238 int aBorders[3];
239 SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders);
240
241 return aBorders[0];
242 }
243
244 int wxStatusBar95::GetBorderY() const
245 {
246 int aBorders[3];
247 SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders);
248
249 return aBorders[1];
250 }
251
252 void wxStatusBar95::SetMinHeight(int height)
253 {
254 SendMessage(GetHwnd(), SB_SETMINHEIGHT, height + 2*GetBorderY(), 0);
255
256 // have to send a (dummy) WM_SIZE to redraw it now
257 SendMessage(GetHwnd(), WM_SIZE, 0, 0);
258 }
259
260 bool wxStatusBar95::GetFieldRect(int i, wxRect& rect) const
261 {
262 wxCHECK_MSG( (i >= 0) && (i < m_nFields), false,
263 _T("invalid statusbar field index") );
264
265 RECT r;
266 if ( !::SendMessage(GetHwnd(), SB_GETRECT, i, (LPARAM)&r) )
267 {
268 wxLogLastError(wxT("SendMessage(SB_GETRECT)"));
269 }
270
271 #if wxUSE_UXTHEME
272 wxUxThemeHandle theme((wxStatusBar95 *)this, L"Status"); // const_cast
273 if ( theme )
274 {
275 // by default Windows has a 2 pixel border to the right of the left
276 // divider (or it could be a bug) but it looks wrong so remove it
277 if ( i != 0 )
278 {
279 r.left -= 2;
280 }
281
282 wxUxThemeEngine::Get()->GetThemeBackgroundContentRect(theme, NULL,
283 1 /* SP_PANE */, 0,
284 &r, &r);
285 }
286 #endif
287
288 wxCopyRECTToRect(r, rect);
289
290 return true;
291 }
292
293 void wxStatusBar95::DoMoveWindow(int x, int y, int width, int height)
294 {
295 if ( GetParent()->IsSizeDeferred() )
296 {
297 wxWindowMSW::DoMoveWindow(x, y, width, height);
298 }
299 else
300 {
301 // parent pos/size isn't deferred so do it now but don't send
302 // WM_WINDOWPOSCHANGING since we don't want to change pos/size later
303 // we must use SWP_NOCOPYBITS here otherwise it paints incorrectly
304 // if other windows are size deferred
305 ::SetWindowPos(GetHwnd(), NULL, x, y, width, height,
306 SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE
307 #ifndef __WXWINCE__
308 | SWP_NOCOPYBITS | SWP_NOSENDCHANGING
309 #endif
310 );
311 }
312
313 // adjust fields widths to the new size
314 SetFieldsWidth();
315
316 // we have to trigger wxSizeEvent if there are children window in status
317 // bar because GetFieldRect returned incorrect (not updated) values up to
318 // here, which almost certainly resulted in incorrectly redrawn statusbar
319 if ( m_children.GetCount() > 0 )
320 {
321 wxSizeEvent event(GetClientSize(), m_windowId);
322 event.SetEventObject(this);
323 GetEventHandler()->ProcessEvent(event);
324 }
325 }
326
327 void wxStatusBar95::SetStatusStyles(int n, const int styles[])
328 {
329 wxStatusBarBase::SetStatusStyles(n, styles);
330
331 if (n != m_nFields)
332 return;
333
334 for (int i = 0; i < n; i++)
335 {
336 int style;
337 switch(styles[i])
338 {
339 case wxSB_RAISED:
340 style = SBT_POPOUT;
341 break;
342 case wxSB_FLAT:
343 style = SBT_NOBORDERS;
344 break;
345 case wxSB_NORMAL:
346 default:
347 style = 0;
348 break;
349 }
350 // The SB_SETTEXT message is both used to set the field's text as well as
351 // the fields' styles. MSDN library doesn't mention
352 // that nField and style have to be 'ORed'
353 wxString text = GetStatusText(i);
354 if (!StatusBar_SetText(GetHwnd(), style | i, text))
355 {
356 wxLogLastError(wxT("StatusBar_SetText"));
357 }
358 }
359 }
360
361 WXLRESULT
362 wxStatusBar95::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
363 {
364 #ifndef __WXWINCE__
365 if ( nMsg == WM_WINDOWPOSCHANGING )
366 {
367 WINDOWPOS *lpPos = (WINDOWPOS *)lParam;
368 int x, y, w, h;
369 GetPosition(&x, &y);
370 GetSize(&w, &h);
371
372 // we need real window coords and not wx client coords
373 AdjustForParentClientOrigin(x, y);
374
375 lpPos->x = x;
376 lpPos->y = y;
377 lpPos->cx = w;
378 lpPos->cy = h;
379
380 return 0;
381 }
382
383 if ( nMsg == WM_NCLBUTTONDOWN )
384 {
385 // if hit-test is on gripper then send message to TLW to begin
386 // resizing. It is possible to send this message to any window.
387 if ( wParam == HTBOTTOMRIGHT )
388 {
389 wxWindow *win;
390
391 for ( win = GetParent(); win; win = win->GetParent() )
392 {
393 if ( win->IsTopLevel() )
394 {
395 SendMessage(GetHwndOf(win), WM_NCLBUTTONDOWN,
396 wParam, lParam);
397
398 return 0;
399 }
400 }
401 }
402 }
403 #endif
404
405 return wxStatusBarBase::MSWWindowProc(nMsg, wParam, lParam);
406 }
407
408 #endif // wxUSE_STATUSBAR && wxUSE_NATIVE_STATUSBAR