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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 | if ( strText == GetStatusText(nField) ) | |
193 | { | |
194 | // don't call StatusBar_SetText() to avoid flicker | |
195 | return; | |
196 | } | |
197 | ||
198 | // Get field style, if any | |
199 | int style; | |
200 | if (m_statusStyles) | |
201 | { | |
202 | switch(m_statusStyles[nField]) | |
203 | { | |
204 | case wxSB_RAISED: | |
205 | style = SBT_POPOUT; | |
206 | break; | |
207 | case wxSB_FLAT: | |
208 | style = SBT_NOBORDERS; | |
209 | break; | |
210 | case wxSB_NORMAL: | |
211 | default: | |
212 | style = 0; | |
213 | break; | |
214 | } | |
215 | } | |
216 | else | |
217 | style = 0; | |
218 | ||
219 | // Pass both field number and style. MSDN library doesn't mention | |
220 | // that nField and style have to be 'ORed' | |
221 | if ( !StatusBar_SetText(GetHwnd(), nField | style, strText) ) | |
222 | { | |
223 | wxLogLastError(wxT("StatusBar_SetText")); | |
224 | } | |
225 | } | |
226 | ||
227 | wxString wxStatusBar95::GetStatusText(int nField) const | |
228 | { | |
229 | wxCHECK_MSG( (nField >= 0) && (nField < m_nFields), wxEmptyString, | |
230 | _T("invalid statusbar field index") ); | |
231 | ||
232 | wxString str; | |
233 | int len = StatusBar_GetTextLen(GetHwnd(), nField); | |
234 | if ( len > 0 ) | |
235 | { | |
236 | StatusBar_GetText(GetHwnd(), nField, wxStringBuffer(str, len)); | |
237 | } | |
238 | ||
239 | return str; | |
240 | } | |
241 | ||
242 | int wxStatusBar95::GetBorderX() const | |
243 | { | |
244 | int aBorders[3]; | |
245 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders); | |
246 | ||
247 | return aBorders[0]; | |
248 | } | |
249 | ||
250 | int wxStatusBar95::GetBorderY() const | |
251 | { | |
252 | int aBorders[3]; | |
253 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)aBorders); | |
254 | ||
255 | return aBorders[1]; | |
256 | } | |
257 | ||
258 | void wxStatusBar95::SetMinHeight(int height) | |
259 | { | |
260 | SendMessage(GetHwnd(), SB_SETMINHEIGHT, height + 2*GetBorderY(), 0); | |
261 | ||
262 | // have to send a (dummy) WM_SIZE to redraw it now | |
263 | SendMessage(GetHwnd(), WM_SIZE, 0, 0); | |
264 | } | |
265 | ||
266 | bool wxStatusBar95::GetFieldRect(int i, wxRect& rect) const | |
267 | { | |
268 | wxCHECK_MSG( (i >= 0) && (i < m_nFields), false, | |
269 | _T("invalid statusbar field index") ); | |
270 | ||
271 | RECT r; | |
272 | if ( !::SendMessage(GetHwnd(), SB_GETRECT, i, (LPARAM)&r) ) | |
273 | { | |
274 | wxLogLastError(wxT("SendMessage(SB_GETRECT)")); | |
275 | } | |
276 | ||
277 | #if wxUSE_UXTHEME | |
278 | wxUxThemeHandle theme((wxStatusBar95 *)this, L"Status"); // const_cast | |
279 | if ( theme ) | |
280 | { | |
281 | // by default Windows has a 2 pixel border to the right of the left | |
282 | // divider (or it could be a bug) but it looks wrong so remove it | |
283 | if ( i != 0 ) | |
284 | { | |
285 | r.left -= 2; | |
286 | } | |
287 | ||
288 | wxUxThemeEngine::Get()->GetThemeBackgroundContentRect(theme, NULL, | |
289 | 1 /* SP_PANE */, 0, | |
290 | &r, &r); | |
291 | } | |
292 | #endif | |
293 | ||
294 | wxCopyRECTToRect(r, rect); | |
295 | ||
296 | return true; | |
297 | } | |
298 | ||
299 | // no idea for a default width, just choose something | |
300 | #define DEFAULT_FIELD_WIDTH 25 | |
301 | ||
302 | wxSize wxStatusBar95::DoGetBestSize() const | |
303 | { | |
304 | int borders[3]; | |
305 | SendMessage(GetHwnd(), SB_GETBORDERS, 0, (LPARAM)borders); | |
306 | ||
307 | // calculate width | |
308 | int width = 0; | |
309 | for ( int i = 0; i < m_nFields; ++i ) | |
310 | { | |
311 | int widthField = m_statusWidths ? m_statusWidths[i] | |
312 | : DEFAULT_FIELD_WIDTH; | |
313 | if ( widthField >= 0 ) | |
314 | { | |
315 | width += m_statusWidths[i]; | |
316 | } | |
317 | else | |
318 | { | |
319 | // variable width field, its width is really a proportion | |
320 | // related to the other fields | |
321 | width += -widthField*DEFAULT_FIELD_WIDTH; | |
322 | } | |
323 | ||
324 | // add the space between fields | |
325 | width += borders[2]; | |
326 | } | |
327 | ||
328 | if ( !width ) | |
329 | { | |
330 | // still need something even for an empty status bar | |
331 | width = 2*DEFAULT_FIELD_WIDTH; | |
332 | } | |
333 | ||
334 | ||
335 | // calculate height | |
336 | int height; | |
337 | wxGetCharSize(GetHWND(), NULL, &height, GetFont()); | |
338 | height = EDIT_HEIGHT_FROM_CHAR_HEIGHT(height); | |
339 | height += borders[1]; | |
340 | ||
341 | wxSize best(width, height); | |
342 | CacheBestSize(best); | |
343 | return best; | |
344 | } | |
345 | ||
346 | void wxStatusBar95::DoMoveWindow(int x, int y, int width, int height) | |
347 | { | |
348 | if ( GetParent()->IsSizeDeferred() ) | |
349 | { | |
350 | wxWindowMSW::DoMoveWindow(x, y, width, height); | |
351 | } | |
352 | else | |
353 | { | |
354 | // parent pos/size isn't deferred so do it now but don't send | |
355 | // WM_WINDOWPOSCHANGING since we don't want to change pos/size later | |
356 | // we must use SWP_NOCOPYBITS here otherwise it paints incorrectly | |
357 | // if other windows are size deferred | |
358 | ::SetWindowPos(GetHwnd(), NULL, x, y, width, height, | |
359 | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOACTIVATE | |
360 | #ifndef __WXWINCE__ | |
361 | | SWP_NOCOPYBITS | SWP_NOSENDCHANGING | |
362 | #endif | |
363 | ); | |
364 | } | |
365 | ||
366 | // adjust fields widths to the new size | |
367 | SetFieldsWidth(); | |
368 | ||
369 | // we have to trigger wxSizeEvent if there are children window in status | |
370 | // bar because GetFieldRect returned incorrect (not updated) values up to | |
371 | // here, which almost certainly resulted in incorrectly redrawn statusbar | |
372 | if ( m_children.GetCount() > 0 ) | |
373 | { | |
374 | wxSizeEvent event(GetClientSize(), m_windowId); | |
375 | event.SetEventObject(this); | |
376 | GetEventHandler()->ProcessEvent(event); | |
377 | } | |
378 | } | |
379 | ||
380 | void wxStatusBar95::SetStatusStyles(int n, const int styles[]) | |
381 | { | |
382 | wxStatusBarBase::SetStatusStyles(n, styles); | |
383 | ||
384 | if (n != m_nFields) | |
385 | return; | |
386 | ||
387 | for (int i = 0; i < n; i++) | |
388 | { | |
389 | int style; | |
390 | switch(styles[i]) | |
391 | { | |
392 | case wxSB_RAISED: | |
393 | style = SBT_POPOUT; | |
394 | break; | |
395 | case wxSB_FLAT: | |
396 | style = SBT_NOBORDERS; | |
397 | break; | |
398 | case wxSB_NORMAL: | |
399 | default: | |
400 | style = 0; | |
401 | break; | |
402 | } | |
403 | // The SB_SETTEXT message is both used to set the field's text as well as | |
404 | // the fields' styles. MSDN library doesn't mention | |
405 | // that nField and style have to be 'ORed' | |
406 | wxString text = GetStatusText(i); | |
407 | if (!StatusBar_SetText(GetHwnd(), style | i, text)) | |
408 | { | |
409 | wxLogLastError(wxT("StatusBar_SetText")); | |
410 | } | |
411 | } | |
412 | } | |
413 | ||
414 | WXLRESULT | |
415 | wxStatusBar95::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) | |
416 | { | |
417 | #ifndef __WXWINCE__ | |
418 | if ( nMsg == WM_WINDOWPOSCHANGING ) | |
419 | { | |
420 | WINDOWPOS *lpPos = (WINDOWPOS *)lParam; | |
421 | int x, y, w, h; | |
422 | GetPosition(&x, &y); | |
423 | GetSize(&w, &h); | |
424 | ||
425 | // we need real window coords and not wx client coords | |
426 | AdjustForParentClientOrigin(x, y); | |
427 | ||
428 | lpPos->x = x; | |
429 | lpPos->y = y; | |
430 | lpPos->cx = w; | |
431 | lpPos->cy = h; | |
432 | ||
433 | return 0; | |
434 | } | |
435 | ||
436 | if ( nMsg == WM_NCLBUTTONDOWN ) | |
437 | { | |
438 | // if hit-test is on gripper then send message to TLW to begin | |
439 | // resizing. It is possible to send this message to any window. | |
440 | if ( wParam == HTBOTTOMRIGHT ) | |
441 | { | |
442 | wxWindow *win; | |
443 | ||
444 | for ( win = GetParent(); win; win = win->GetParent() ) | |
445 | { | |
446 | if ( win->IsTopLevel() ) | |
447 | { | |
448 | SendMessage(GetHwndOf(win), WM_NCLBUTTONDOWN, | |
449 | wParam, lParam); | |
450 | ||
451 | return 0; | |
452 | } | |
453 | } | |
454 | } | |
455 | } | |
456 | #endif | |
457 | ||
458 | return wxStatusBarBase::MSWWindowProc(nMsg, wParam, lParam); | |
459 | } | |
460 | ||
461 | #endif // wxUSE_STATUSBAR && wxUSE_NATIVE_STATUSBAR |