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Fixes for wxPopupTransientWindow for wxMSW. Includes Patch #1181190,
[wxWidgets.git] / src / msw / statbox.cpp
1 /////////////////////////////////////////////////////////////////////////////
2 // Name: msw/statbox.cpp
3 // Purpose: wxStaticBox
4 // Author: Julian Smart
5 // Modified by:
6 // Created: 04/01/98
7 // RCS-ID: $Id$
8 // Copyright: (c) Julian Smart
9 // Licence: wxWindows licence
10 /////////////////////////////////////////////////////////////////////////////
11
12 // ============================================================================
13 // declarations
14 // ============================================================================
15
16 // ----------------------------------------------------------------------------
17 // headers
18 // ----------------------------------------------------------------------------
19
20 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
21 #pragma implementation "statbox.h"
22 #endif
23
24 // For compilers that support precompilation, includes "wx.h".
25 #include "wx/wxprec.h"
26
27 #ifdef __BORLANDC__
28 #pragma hdrstop
29 #endif
30
31 #if wxUSE_STATBOX
32
33 #ifndef WX_PRECOMP
34 #include "wx/app.h"
35 #include "wx/dcclient.h"
36 #endif
37
38 #include "wx/statbox.h"
39 #include "wx/notebook.h"
40 #include "wx/sysopt.h"
41 #include "wx/image.h"
42 #include "wx/dcmemory.h"
43
44 #include "wx/msw/private.h"
45
46 // ----------------------------------------------------------------------------
47 // wxWin macros
48 // ----------------------------------------------------------------------------
49
50 #if wxUSE_EXTENDED_RTTI
51 WX_DEFINE_FLAGS( wxStaticBoxStyle )
52
53 wxBEGIN_FLAGS( wxStaticBoxStyle )
54 // new style border flags, we put them first to
55 // use them for streaming out
56 wxFLAGS_MEMBER(wxBORDER_SIMPLE)
57 wxFLAGS_MEMBER(wxBORDER_SUNKEN)
58 wxFLAGS_MEMBER(wxBORDER_DOUBLE)
59 wxFLAGS_MEMBER(wxBORDER_RAISED)
60 wxFLAGS_MEMBER(wxBORDER_STATIC)
61 wxFLAGS_MEMBER(wxBORDER_NONE)
62
63 // old style border flags
64 wxFLAGS_MEMBER(wxSIMPLE_BORDER)
65 wxFLAGS_MEMBER(wxSUNKEN_BORDER)
66 wxFLAGS_MEMBER(wxDOUBLE_BORDER)
67 wxFLAGS_MEMBER(wxRAISED_BORDER)
68 wxFLAGS_MEMBER(wxSTATIC_BORDER)
69 wxFLAGS_MEMBER(wxBORDER)
70
71 // standard window styles
72 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
73 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
74 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
75 wxFLAGS_MEMBER(wxWANTS_CHARS)
76 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
77 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
78 wxFLAGS_MEMBER(wxVSCROLL)
79 wxFLAGS_MEMBER(wxHSCROLL)
80
81 wxEND_FLAGS( wxStaticBoxStyle )
82
83 IMPLEMENT_DYNAMIC_CLASS_XTI(wxStaticBox, wxControl,"wx/statbox.h")
84
85 wxBEGIN_PROPERTIES_TABLE(wxStaticBox)
86 wxPROPERTY( Label,wxString, SetLabel, GetLabel, wxString() , 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
87 wxPROPERTY_FLAGS( WindowStyle , wxStaticBoxStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
88 /*
89 TODO PROPERTIES :
90 label
91 */
92 wxEND_PROPERTIES_TABLE()
93
94 wxBEGIN_HANDLERS_TABLE(wxStaticBox)
95 wxEND_HANDLERS_TABLE()
96
97 wxCONSTRUCTOR_6( wxStaticBox , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle )
98 #else
99 IMPLEMENT_DYNAMIC_CLASS(wxStaticBox, wxControl)
100 #endif
101
102 // ============================================================================
103 // implementation
104 // ============================================================================
105
106 // ----------------------------------------------------------------------------
107 // wxStaticBox
108 // ----------------------------------------------------------------------------
109
110 bool wxStaticBox::Create(wxWindow *parent,
111 wxWindowID id,
112 const wxString& label,
113 const wxPoint& pos,
114 const wxSize& size,
115 long style,
116 const wxString& name)
117 {
118 if ( !CreateControl(parent, id, pos, size, style, wxDefaultValidator, name) )
119 return false;
120
121 if ( !MSWCreateControl(wxT("BUTTON"), label, pos, size) )
122 return false;
123
124 #ifndef __WXWINCE__
125 Connect(wxEVT_PAINT, wxPaintEventHandler(wxStaticBox::OnPaint));
126 #endif // !__WXWINCE__
127
128 return true;
129 }
130
131 wxBorder wxStaticBox::GetDefaultBorder() const
132 {
133 return wxBORDER_NONE;
134 }
135
136 WXDWORD wxStaticBox::MSWGetStyle(long style, WXDWORD *exstyle) const
137 {
138 long styleWin = wxStaticBoxBase::MSWGetStyle(style, exstyle);
139
140 // no need for it anymore, must be removed for wxRadioBox child
141 // buttons to be able to repaint themselves
142 styleWin &= ~WS_CLIPCHILDREN;
143
144 if ( exstyle )
145 {
146 *exstyle = 0;
147
148 // If any of the ancestors are scrolling windows, style has to be
149 // WS_EX_TRANSPARENT or the static box won't be painted when the window
150 // is scrolled. We try not to do this normally, because we get a lot of
151 // flicker.
152 for ( wxWindow *win = GetParent(); win; win = win->GetParent() )
153 {
154 if ( win->HasFlag(wxVSCROLL) || win->HasFlag(wxHSCROLL) )
155 {
156 *exstyle = WS_EX_TRANSPARENT;
157 break;
158 }
159
160 if ( win->IsTopLevel() )
161 break;
162 }
163 }
164
165 return styleWin | BS_GROUPBOX;
166 }
167
168 wxSize wxStaticBox::DoGetBestSize() const
169 {
170 int cx, cy;
171 wxGetCharSize(GetHWND(), &cx, &cy, GetFont());
172
173 int wBox;
174 GetTextExtent(wxGetWindowText(m_hWnd), &wBox, &cy);
175
176 wBox += 3*cx;
177 int hBox = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
178
179 return wxSize(wBox, hBox);
180 }
181
182 void wxStaticBox::GetBordersForSizer(int *borderTop, int *borderOther) const
183 {
184 wxStaticBoxBase::GetBordersForSizer(borderTop, borderOther);
185
186 // need extra space, don't know how much but this seems to be enough
187 *borderTop += GetCharHeight()/3;
188 }
189
190 // all the hacks below are not necessary for WinCE
191 #ifndef __WXWINCE__
192
193 WXLRESULT wxStaticBox::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
194 {
195 if ( nMsg == WM_NCHITTEST )
196 {
197 // This code breaks some other processing such as enter/leave tracking
198 // so it's off by default.
199
200 static int s_useHTClient = -1;
201 if (s_useHTClient == -1)
202 s_useHTClient = wxSystemOptions::GetOptionInt(wxT("msw.staticbox.htclient"));
203 if (s_useHTClient == 1)
204 {
205 int xPos = GET_X_LPARAM(lParam);
206 int yPos = GET_Y_LPARAM(lParam);
207
208 ScreenToClient(&xPos, &yPos);
209
210 // Make sure you can drag by the top of the groupbox, but let
211 // other (enclosed) controls get mouse events also
212 if ( yPos < 10 )
213 return (long)HTCLIENT;
214 }
215 }
216
217 return wxControl::MSWWindowProc(nMsg, wParam, lParam);
218 }
219
220 // ----------------------------------------------------------------------------
221 // static box drawing
222 // ----------------------------------------------------------------------------
223
224 /*
225 We draw the static box ourselves because it's the only way to prevent it
226 from flickering horribly on resize (because everything inside the box is
227 erased twice: once when the box itself is repainted and second time when
228 the control inside it is repainted) without using WS_EX_TRANSPARENT style as
229 we used to do and which resulted in other problems.
230 */
231
232 // MSWGetRegionWithoutSelf helper: removes the given rectangle from region
233 static inline void
234 SubtractRectFromRgn(HRGN hrgn, int left, int top, int right, int bottom)
235 {
236 AutoHRGN hrgnRect(::CreateRectRgn(left, top, right, bottom));
237 if ( !hrgnRect )
238 {
239 wxLogLastError(_T("CreateRectRgn()"));
240 return;
241 }
242
243 ::CombineRgn(hrgn, hrgn, hrgnRect, RGN_DIFF);
244 }
245
246 void wxStaticBox::MSWGetRegionWithoutSelf(WXHRGN hRgn, int w, int h)
247 {
248 HRGN hrgn = (HRGN)hRgn;
249
250 // remove the area occupied by the static box borders from the region
251 int borderTop, border;
252 GetBordersForSizer(&borderTop, &border);
253
254 // top
255 SubtractRectFromRgn(hrgn, 0, 0, w, borderTop);
256
257 // bottom
258 SubtractRectFromRgn(hrgn, 0, h - border, w, h);
259
260 // left
261 SubtractRectFromRgn(hrgn, 0, 0, border, h);
262
263 // right
264 SubtractRectFromRgn(hrgn, w - border, 0, w, h);
265 }
266
267 WXHRGN wxStaticBox::MSWGetRegionWithoutChildren()
268 {
269 RECT rc;
270 ::GetWindowRect(GetHwnd(), &rc);
271 HRGN hrgn = ::CreateRectRgn(rc.left, rc.top, rc.right + 1, rc.bottom + 1);
272
273 // iterate over all child windows (not just wxWindows but all windows)
274 for ( HWND child = ::GetWindow(GetHwndOf(GetParent()), GW_CHILD);
275 child;
276 child = ::GetWindow(child, GW_HWNDNEXT) )
277 {
278 wxWindow *childWindow = wxGetWindowFromHWND((WXHWND) child);
279
280 // can't just test for (this != child) here since if a wxStaticBox
281 // overlaps another wxStaticBox then neither are drawn. The overlapping
282 // region will flicker but we shouldn't have overlapping windows anyway.
283 if ( !childWindow || !wxDynamicCast(childWindow, wxStaticBox) )
284 {
285 ::GetWindowRect(child, &rc);
286 if ( ::RectInRegion(hrgn, &rc) )
287 {
288 // need to remove WS_CLIPSIBLINGS from all sibling windows
289 // that are within this staticbox if set
290 LONG style = ::GetWindowLong(child, GWL_STYLE);
291 if ( style & WS_CLIPSIBLINGS )
292 {
293 style &= ~WS_CLIPSIBLINGS;
294 ::SetWindowLong(child, GWL_STYLE, style);
295
296 // MSDN: "If you have changed certain window data using
297 // SetWindowLong, you must call SetWindowPos to have the
298 // changes take effect."
299 ::SetWindowPos(child, NULL, 0, 0, 0, 0,
300 SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
301 SWP_FRAMECHANGED);
302 }
303
304 AutoHRGN hrgnChild(::CreateRectRgnIndirect(&rc));
305 ::CombineRgn(hrgn, hrgn, hrgnChild, RGN_DIFF);
306 }
307 }
308 }
309
310 return (WXHRGN)hrgn;
311 }
312
313 // helper for OnPaint(): really erase the background, i.e. do it even if we
314 // don't have any non default brush for doing it (DoEraseBackground() doesn't
315 // do anything in such case)
316 void wxStaticBox::PaintBackground(wxDC& dc, const RECT& rc)
317 {
318 // note that we do not use the box background colour here, it shouldn't
319 // apply to its interior for several reasons:
320 // 1. wxGTK doesn't do it
321 // 2. controls inside the box don't get correct bg colour because they
322 // are not our children so we'd have some really ugly colour mix if
323 // we did it
324 // 3. this is backwards compatible behaviour and some people rely on it,
325 // see http://groups.google.com/groups?selm=4252E932.3080801%40able.es
326 wxWindow *parent = GetParent();
327 HBRUSH hbr = (HBRUSH)parent->MSWGetBgBrush(dc.GetHDC(), GetHWND());
328
329 // if there is no special brush for painting this control, just use the
330 // solid background colour
331 wxBrush brush;
332 if ( !hbr )
333 {
334 brush = wxBrush(parent->GetBackgroundColour());
335 hbr = GetHbrushOf(brush);
336 }
337
338 ::FillRect(GetHdcOf(dc), &rc, hbr);
339 }
340
341 void wxStaticBox::OnPaint(wxPaintEvent& WXUNUSED(event))
342 {
343 RECT rc;
344 ::GetClientRect(GetHwnd(), &rc);
345
346 // draw the entire box in a memory DC
347 wxMemoryDC memdc;
348 wxBitmap bitmap(rc.right, rc.bottom);
349 memdc.SelectObject(bitmap);
350
351 PaintBackground(memdc, rc);
352
353 // NB: neither setting the text colour nor transparent background mode
354 // doesn't change anything: the static box def window proc still
355 // draws the label in its own colours, so if we want to have control
356 // over this we really have to draw everything ourselves
357 MSWDefWindowProc(WM_PAINT, (WPARAM)GetHdcOf(memdc), 0);
358
359
360 // now only blit the static box border itself, not the interior, to avoid
361 // flicker when background is drawn below
362 //
363 // note that it seems to be faster to do 4 small blits here and then paint
364 // directly into wxPaintDC than painting background in wxMemoryDC and then
365 // blitting everything at once to wxPaintDC, this is why we do it like this
366 wxPaintDC dc(this);
367 int borderTop, border;
368 GetBordersForSizer(&borderTop, &border);
369
370 // top
371 dc.Blit(border, 0, rc.right - border, borderTop,
372 &memdc, border, 0);
373 // bottom
374 dc.Blit(border, rc.bottom - border, rc.right - border, rc.bottom,
375 &memdc, border, rc.bottom - border);
376 // left
377 dc.Blit(0, 0, border, rc.bottom,
378 &memdc, 0, 0);
379 // right
380 dc.Blit(rc.right - border, 0, rc.right, rc.bottom,
381 &memdc, rc.right - border, 0);
382
383
384 // create the region excluding box children
385 AutoHRGN hrgn((HRGN)MSWGetRegionWithoutChildren());
386 RECT rcWin;
387 ::GetWindowRect(GetHwnd(), &rcWin);
388 ::OffsetRgn(hrgn, -rcWin.left, -rcWin.top);
389
390 // and also the box itself
391 MSWGetRegionWithoutSelf((WXHRGN) hrgn, rc.right, rc.bottom);
392 HDCClipper clipToBg(GetHdcOf(dc), hrgn);
393
394 // paint the inside of the box (excluding box itself and child controls)
395 PaintBackground(dc, rc);
396 }
397
398 #endif // !__WXWINCE__
399
400 #endif // wxUSE_STATBOX
401