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1 | /////////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/msw/statusbar.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 | // wxStatusBar class | |
55 | // ---------------------------------------------------------------------------- | |
56 | ||
57 | wxStatusBar::wxStatusBar() | |
58 | { | |
59 | SetParent(NULL); | |
60 | m_hWnd = 0; | |
61 | m_windowId = 0; | |
62 | } | |
63 | ||
64 | bool wxStatusBar::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 = CreateWindow | |
103 | ( | |
104 | STATUSCLASSNAME, | |
105 | _T(""), | |
106 | wstyle, | |
107 | 0, 0, 0, 0, | |
108 | GetHwndOf(parent), | |
109 | (HMENU)wxUIntToPtr(m_windowId.GetValue()), | |
110 | wxGetInstance(), | |
111 | NULL | |
112 | ); | |
113 | if ( m_hWnd == 0 ) | |
114 | { | |
115 | wxLogSysError(_("Failed to create a status bar.")); | |
116 | ||
117 | return false; | |
118 | } | |
119 | ||
120 | SetFieldsCount(1); | |
121 | SubclassWin(m_hWnd); | |
122 | InheritAttributes(); | |
123 | ||
124 | SetBackgroundColour(wxSystemSettings::GetColour(wxSYS_COLOUR_MENUBAR)); | |
125 | ||
126 | // we must refresh the frame size when the statusbar is created, because | |
127 | // its client area might change | |
128 | wxFrame *frame = wxDynamicCast(GetParent(), wxFrame); | |
129 | if ( frame ) | |
130 | { | |
131 | frame->SendSizeEvent(); | |
132 | } | |
133 | ||
134 | return true; | |
135 | } | |
136 | ||
137 | wxStatusBar::~wxStatusBar() | |
138 | { | |
139 | // we must refresh the frame size when the statusbar is deleted but the | |
140 | // frame is not - otherwise statusbar leaves a hole in the place it used to | |
141 | // occupy | |
142 | wxFrame *frame = wxDynamicCast(GetParent(), wxFrame); | |
143 | if ( frame && !frame->IsBeingDeleted() ) | |
144 | { | |
145 | frame->SendSizeEvent(); | |
146 | } | |
147 | } | |
148 | ||
149 | void wxStatusBar::SetFieldsCount(int nFields, const int *widths) | |
150 | { | |
151 | // this is a Windows limitation | |
152 | wxASSERT_MSG( (nFields > 0) && (nFields < 255), _T("too many fields") ); | |
153 | ||
154 | wxStatusBarBase::SetFieldsCount(nFields, widths); | |
155 | ||
156 | SetFieldsWidth(); | |
157 | } | |
158 | ||
159 | void wxStatusBar::SetStatusWidths(int n, const int widths[]) | |
160 | { | |
161 | wxStatusBarBase::SetStatusWidths(n, widths); | |
162 | ||
163 | SetFieldsWidth(); | |
164 | } | |
165 | ||
166 | void wxStatusBar::SetFieldsWidth() | |
167 | { | |
168 | if ( !m_nFields ) | |
169 | return; | |
170 | ||
171 | int aBorders[3]; | |
172 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders); | |
173 | ||
174 | int extraWidth = aBorders[2]; // space between fields | |
175 | ||
176 | wxArrayInt widthsAbs = | |
177 | CalculateAbsWidths(GetClientSize().x - extraWidth*(m_nFields - 1)); | |
178 | ||
179 | int *pWidths = new int[m_nFields]; | |
180 | ||
181 | int nCurPos = 0; | |
182 | for ( int i = 0; i < m_nFields; i++ ) { | |
183 | nCurPos += widthsAbs[i] + extraWidth; | |
184 | pWidths[i] = nCurPos; | |
185 | } | |
186 | ||
187 | if ( !StatusBar_SetParts(GetHwnd(), m_nFields, pWidths) ) { | |
188 | wxLogLastError(wxT("StatusBar_SetParts")); | |
189 | } | |
190 | ||
191 | delete [] pWidths; | |
192 | } | |
193 | ||
194 | void wxStatusBar::SetStatusText(const wxString& strText, int nField) | |
195 | { | |
196 | wxCHECK_RET( (nField >= 0) && (nField < m_nFields), | |
197 | _T("invalid statusbar field index") ); | |
198 | ||
199 | if ( strText == GetStatusText(nField) ) | |
200 | { | |
201 | // don't call StatusBar_SetText() to avoid flicker | |
202 | return; | |
203 | } | |
204 | ||
205 | // Get field style, if any | |
206 | int style; | |
207 | if (m_statusStyles) | |
208 | { | |
209 | switch(m_statusStyles[nField]) | |
210 | { | |
211 | case wxSB_RAISED: | |
212 | style = SBT_POPOUT; | |
213 | break; | |
214 | case wxSB_FLAT: | |
215 | style = SBT_NOBORDERS; | |
216 | break; | |
217 | case wxSB_NORMAL: | |
218 | default: | |
219 | style = 0; | |
220 | break; | |
221 | } | |
222 | } | |
223 | else | |
224 | style = 0; | |
225 | ||
226 | // Pass both field number and style. MSDN library doesn't mention | |
227 | // that nField and style have to be 'ORed' | |
228 | if ( !StatusBar_SetText(GetHwnd(), nField | style, strText.wx_str()) ) | |
229 | { | |
230 | wxLogLastError(wxT("StatusBar_SetText")); | |
231 | } | |
232 | } | |
233 | ||
234 | wxString wxStatusBar::GetStatusText(int nField) const | |
235 | { | |
236 | wxCHECK_MSG( (nField >= 0) && (nField < m_nFields), wxEmptyString, | |
237 | _T("invalid statusbar field index") ); | |
238 | ||
239 | wxString str; | |
240 | int len = StatusBar_GetTextLen(GetHwnd(), nField); | |
241 | if ( len > 0 ) | |
242 | { | |
243 | StatusBar_GetText(GetHwnd(), nField, wxStringBuffer(str, len)); | |
244 | } | |
245 | ||
246 | return str; | |
247 | } | |
248 | ||
249 | int wxStatusBar::GetBorderX() const | |
250 | { | |
251 | int aBorders[3]; | |
252 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders); | |
253 | ||
254 | return aBorders[0]; | |
255 | } | |
256 | ||
257 | int wxStatusBar::GetBorderY() const | |
258 | { | |
259 | int aBorders[3]; | |
260 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders); | |
261 | ||
262 | return aBorders[1]; | |
263 | } | |
264 | ||
265 | void wxStatusBar::SetMinHeight(int height) | |
266 | { | |
267 | SendMessage(GetHwnd(), SB_SETMINHEIGHT, height + 2*GetBorderY(), 0); | |
268 | ||
269 | // have to send a (dummy) WM_SIZE to redraw it now | |
270 | SendMessage(GetHwnd(), WM_SIZE, 0, 0); | |
271 | } | |
272 | ||
273 | bool wxStatusBar::GetFieldRect(int i, wxRect& rect) const | |
274 | { | |
275 | wxCHECK_MSG( (i >= 0) && (i < m_nFields), false, | |
276 | _T("invalid statusbar field index") ); | |
277 | ||
278 | RECT r; | |
279 | if ( !::SendMessage(GetHwnd(), SB_GETRECT, i, (LPARAM)&r) ) | |
280 | { | |
281 | wxLogLastError(wxT("SendMessage(SB_GETRECT)")); | |
282 | } | |
283 | ||
284 | #if wxUSE_UXTHEME | |
285 | wxUxThemeHandle theme((wxStatusBar *)this, L"Status"); // const_cast | |
286 | if ( theme ) | |
287 | { | |
288 | // by default Windows has a 2 pixel border to the right of the left | |
289 | // divider (or it could be a bug) but it looks wrong so remove it | |
290 | if ( i != 0 ) | |
291 | { | |
292 | r.left -= 2; | |
293 | } | |
294 | ||
295 | wxUxThemeEngine::Get()->GetThemeBackgroundContentRect(theme, NULL, | |
296 | 1 /* SP_PANE */, 0, | |
297 | &r, &r); | |
298 | } | |
299 | #endif | |
300 | ||
301 | wxCopyRECTToRect(r, rect); | |
302 | ||
303 | return true; | |
304 | } | |
305 | ||
306 | // no idea for a default width, just choose something | |
307 | #define DEFAULT_FIELD_WIDTH 25 | |
308 | ||
309 | wxSize wxStatusBar::DoGetBestSize() const | |
310 | { | |
311 | int borders[3]; | |
312 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)borders); | |
313 | ||
314 | // calculate width | |
315 | int width = 0; | |
316 | for ( int i = 0; i < m_nFields; ++i ) | |
317 | { | |
318 | int widthField = m_statusWidths ? m_statusWidths[i] | |
319 | : DEFAULT_FIELD_WIDTH; | |
320 | if ( widthField >= 0 ) | |
321 | { | |
322 | width += widthField; | |
323 | } | |
324 | else | |
325 | { | |
326 | // variable width field, its width is really a proportion | |
327 | // related to the other fields | |
328 | width += -widthField*DEFAULT_FIELD_WIDTH; | |
329 | } | |
330 | ||
331 | // add the space between fields | |
332 | width += borders[2]; | |
333 | } | |
334 | ||
335 | if ( !width ) | |
336 | { | |
337 | // still need something even for an empty status bar | |
338 | width = 2*DEFAULT_FIELD_WIDTH; | |
339 | } | |
340 | ||
341 | ||
342 | // calculate height | |
343 | int height; | |
344 | wxGetCharSize(GetHWND(), NULL, &height, GetFont()); | |
345 | height = EDIT_HEIGHT_FROM_CHAR_HEIGHT(height); | |
346 | height += borders[1]; | |
347 | ||
348 | wxSize best(width, height); | |
349 | CacheBestSize(best); | |
350 | return best; | |
351 | } | |
352 | ||
353 | void wxStatusBar::DoMoveWindow(int x, int y, int width, int height) | |
354 | { | |
355 | if ( GetParent()->IsSizeDeferred() ) | |
356 | { | |
357 | wxWindowMSW::DoMoveWindow(x, y, width, height); | |
358 | } | |
359 | else | |
360 | { | |
361 | // parent pos/size isn't deferred so do it now but don't send | |
362 | // WM_WINDOWPOSCHANGING since we don't want to change pos/size later | |
363 | // we must use SWP_NOCOPYBITS here otherwise it paints incorrectly | |
364 | // if other windows are size deferred | |
365 | ::SetWindowPos(GetHwnd(), NULL, x, y, width, height, | |
366 | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE | |
367 | #ifndef __WXWINCE__ | |
368 | | SWP_NOCOPYBITS | SWP_NOSENDCHANGING | |
369 | #endif | |
370 | ); | |
371 | } | |
372 | ||
373 | // adjust fields widths to the new size | |
374 | SetFieldsWidth(); | |
375 | ||
376 | // we have to trigger wxSizeEvent if there are children window in status | |
377 | // bar because GetFieldRect returned incorrect (not updated) values up to | |
378 | // here, which almost certainly resulted in incorrectly redrawn statusbar | |
379 | if ( m_children.GetCount() > 0 ) | |
380 | { | |
381 | wxSizeEvent event(GetClientSize(), m_windowId); | |
382 | event.SetEventObject(this); | |
383 | HandleWindowEvent(event); | |
384 | } | |
385 | } | |
386 | ||
387 | void wxStatusBar::SetStatusStyles(int n, const int styles[]) | |
388 | { | |
389 | wxStatusBarBase::SetStatusStyles(n, styles); | |
390 | ||
391 | if (n != m_nFields) | |
392 | return; | |
393 | ||
394 | for (int i = 0; i < n; i++) | |
395 | { | |
396 | int style; | |
397 | switch(styles[i]) | |
398 | { | |
399 | case wxSB_RAISED: | |
400 | style = SBT_POPOUT; | |
401 | break; | |
402 | case wxSB_FLAT: | |
403 | style = SBT_NOBORDERS; | |
404 | break; | |
405 | case wxSB_NORMAL: | |
406 | default: | |
407 | style = 0; | |
408 | break; | |
409 | } | |
410 | // The SB_SETTEXT message is both used to set the field's text as well as | |
411 | // the fields' styles. MSDN library doesn't mention | |
412 | // that nField and style have to be 'ORed' | |
413 | wxString text = GetStatusText(i); | |
414 | if (!StatusBar_SetText(GetHwnd(), style | i, text.wx_str())) | |
415 | { | |
416 | wxLogLastError(wxT("StatusBar_SetText")); | |
417 | } | |
418 | } | |
419 | } | |
420 | ||
421 | WXLRESULT | |
422 | wxStatusBar::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) | |
423 | { | |
424 | #ifndef __WXWINCE__ | |
425 | if ( nMsg == WM_WINDOWPOSCHANGING ) | |
426 | { | |
427 | WINDOWPOS *lpPos = (WINDOWPOS *)lParam; | |
428 | int x, y, w, h; | |
429 | GetPosition(&x, &y); | |
430 | GetSize(&w, &h); | |
431 | ||
432 | // we need real window coords and not wx client coords | |
433 | AdjustForParentClientOrigin(x, y); | |
434 | ||
435 | lpPos->x = x; | |
436 | lpPos->y = y; | |
437 | lpPos->cx = w; | |
438 | lpPos->cy = h; | |
439 | ||
440 | return 0; | |
441 | } | |
442 | ||
443 | if ( nMsg == WM_NCLBUTTONDOWN ) | |
444 | { | |
445 | // if hit-test is on gripper then send message to TLW to begin | |
446 | // resizing. It is possible to send this message to any window. | |
447 | if ( wParam == HTBOTTOMRIGHT ) | |
448 | { | |
449 | wxWindow *win; | |
450 | ||
451 | for ( win = GetParent(); win; win = win->GetParent() ) | |
452 | { | |
453 | if ( win->IsTopLevel() ) | |
454 | { | |
455 | SendMessage(GetHwndOf(win), WM_NCLBUTTONDOWN, | |
456 | wParam, lParam); | |
457 | ||
458 | return 0; | |
459 | } | |
460 | } | |
461 | } | |
462 | } | |
463 | #endif | |
464 | ||
465 | return wxStatusBarBase::MSWWindowProc(nMsg, wParam, lParam); | |
466 | } | |
467 | ||
468 | #endif // wxUSE_STATUSBAR && wxUSE_NATIVE_STATUSBAR |