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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/msw/control.cpp | |
3 | // Purpose: wxControl class | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 01/02/97 | |
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 | // For compilers that support precompilation, includes "wx.h". | |
21 | #include "wx/wxprec.h" | |
22 | ||
23 | #ifdef __BORLANDC__ | |
24 | #pragma hdrstop | |
25 | #endif | |
26 | ||
27 | #if wxUSE_CONTROLS | |
28 | ||
29 | #ifndef WX_PRECOMP | |
30 | #include "wx/event.h" | |
31 | #include "wx/app.h" | |
32 | #include "wx/dcclient.h" | |
33 | #include "wx/log.h" | |
34 | #include "wx/settings.h" | |
35 | #endif | |
36 | ||
37 | #include "wx/control.h" | |
38 | ||
39 | #if wxUSE_NOTEBOOK | |
40 | #include "wx/notebook.h" | |
41 | #endif // wxUSE_NOTEBOOK | |
42 | ||
43 | #include "wx/msw/private.h" | |
44 | #include "wx/msw/uxtheme.h" | |
45 | ||
46 | // include <commctrl.h> "properly" | |
47 | #include "wx/msw/wrapcctl.h" | |
48 | ||
49 | // ---------------------------------------------------------------------------- | |
50 | // wxWin macros | |
51 | // ---------------------------------------------------------------------------- | |
52 | ||
53 | IMPLEMENT_ABSTRACT_CLASS(wxControl, wxWindow) | |
54 | ||
55 | // ============================================================================ | |
56 | // wxControl implementation | |
57 | // ============================================================================ | |
58 | ||
59 | // ---------------------------------------------------------------------------- | |
60 | // wxControl ctor/dtor | |
61 | // ---------------------------------------------------------------------------- | |
62 | ||
63 | wxControl::~wxControl() | |
64 | { | |
65 | m_isBeingDeleted = true; | |
66 | } | |
67 | ||
68 | // ---------------------------------------------------------------------------- | |
69 | // control window creation | |
70 | // ---------------------------------------------------------------------------- | |
71 | ||
72 | bool wxControl::Create(wxWindow *parent, | |
73 | wxWindowID id, | |
74 | const wxPoint& pos, | |
75 | const wxSize& size, | |
76 | long style, | |
77 | const wxValidator& wxVALIDATOR_PARAM(validator), | |
78 | const wxString& name) | |
79 | { | |
80 | if ( !wxWindow::Create(parent, id, pos, size, style, name) ) | |
81 | return false; | |
82 | ||
83 | #if wxUSE_VALIDATORS | |
84 | SetValidator(validator); | |
85 | #endif | |
86 | ||
87 | return true; | |
88 | } | |
89 | ||
90 | bool wxControl::MSWCreateControl(const wxChar *classname, | |
91 | const wxString& label, | |
92 | const wxPoint& pos, | |
93 | const wxSize& size) | |
94 | { | |
95 | WXDWORD exstyle; | |
96 | WXDWORD msStyle = MSWGetStyle(GetWindowStyle(), &exstyle); | |
97 | ||
98 | return MSWCreateControl(classname, msStyle, pos, size, label, exstyle); | |
99 | } | |
100 | ||
101 | bool wxControl::MSWCreateControl(const wxChar *classname, | |
102 | WXDWORD style, | |
103 | const wxPoint& pos, | |
104 | const wxSize& size, | |
105 | const wxString& label, | |
106 | WXDWORD exstyle) | |
107 | { | |
108 | // if no extended style given, determine it ourselves | |
109 | if ( exstyle == (WXDWORD)-1 ) | |
110 | { | |
111 | exstyle = 0; | |
112 | (void) MSWGetStyle(GetWindowStyle(), &exstyle); | |
113 | } | |
114 | ||
115 | // all controls should have this style | |
116 | style |= WS_CHILD; | |
117 | ||
118 | // create the control visible if it's currently shown for wxWidgets | |
119 | if ( m_isShown ) | |
120 | { | |
121 | style |= WS_VISIBLE; | |
122 | } | |
123 | ||
124 | // choose the position for the control: we have a problem with default size | |
125 | // here as we can't calculate the best size before the control exists | |
126 | // (DoGetBestSize() may need to use m_hWnd), so just choose the minimal | |
127 | // possible but non 0 size because 0 window width/height result in problems | |
128 | // elsewhere | |
129 | int x = pos.x == wxDefaultCoord ? 0 : pos.x, | |
130 | y = pos.y == wxDefaultCoord ? 0 : pos.y, | |
131 | w = size.x == wxDefaultCoord ? 1 : size.x, | |
132 | h = size.y == wxDefaultCoord ? 1 : size.y; | |
133 | ||
134 | // ... and adjust it to account for a possible parent frames toolbar | |
135 | AdjustForParentClientOrigin(x, y); | |
136 | ||
137 | m_hWnd = (WXHWND)::CreateWindowEx | |
138 | ( | |
139 | exstyle, // extended style | |
140 | classname, // the kind of control to create | |
141 | label, // the window name | |
142 | style, // the window style | |
143 | x, y, w, h, // the window position and size | |
144 | GetHwndOf(GetParent()), // parent | |
145 | (HMENU)GetId(), // child id | |
146 | wxGetInstance(), // app instance | |
147 | NULL // creation parameters | |
148 | ); | |
149 | ||
150 | if ( !m_hWnd ) | |
151 | { | |
152 | #ifdef __WXDEBUG__ | |
153 | wxFAIL_MSG(wxString::Format | |
154 | ( | |
155 | _T("CreateWindowEx(\"%s\", flags=%08x, ex=%08x) failed"), | |
156 | classname, (unsigned int)style, (unsigned int)exstyle | |
157 | )); | |
158 | #endif // __WXDEBUG__ | |
159 | ||
160 | return false; | |
161 | } | |
162 | ||
163 | // install wxWidgets window proc for this window | |
164 | SubclassWin(m_hWnd); | |
165 | ||
166 | // set up fonts and colours | |
167 | InheritAttributes(); | |
168 | if (!m_hasFont) | |
169 | SetFont(GetDefaultAttributes().font); | |
170 | ||
171 | // set the size now if no initial size specified | |
172 | SetInitialBestSize(size); | |
173 | ||
174 | return true; | |
175 | } | |
176 | ||
177 | // ---------------------------------------------------------------------------- | |
178 | // various accessors | |
179 | // ---------------------------------------------------------------------------- | |
180 | ||
181 | wxBorder wxControl::GetDefaultBorder() const | |
182 | { | |
183 | // we want to automatically give controls a sunken style (confusingly, | |
184 | // it may not really mean sunken at all as we map it to WS_EX_CLIENTEDGE | |
185 | // which is not sunken at all under Windows XP -- rather, just the default) | |
186 | #if defined(__POCKETPC__) || defined(__SMARTPHONE__) | |
187 | return wxBORDER_SIMPLE; | |
188 | #else | |
189 | return wxBORDER_SUNKEN; | |
190 | #endif | |
191 | } | |
192 | ||
193 | WXDWORD wxControl::MSWGetStyle(long style, WXDWORD *exstyle) const | |
194 | { | |
195 | long msStyle = wxWindow::MSWGetStyle(style, exstyle); | |
196 | ||
197 | if ( AcceptsFocus() ) | |
198 | { | |
199 | msStyle |= WS_TABSTOP; | |
200 | } | |
201 | ||
202 | return msStyle; | |
203 | } | |
204 | ||
205 | wxSize wxControl::DoGetBestSize() const | |
206 | { | |
207 | return wxSize(DEFAULT_ITEM_WIDTH, DEFAULT_ITEM_HEIGHT); | |
208 | } | |
209 | ||
210 | // This is a helper for all wxControls made with UPDOWN native control. | |
211 | // In wxMSW it was only wxSpinCtrl derived from wxSpinButton but in | |
212 | // WinCE of Smartphones this happens also for native wxTextCtrl, | |
213 | // wxChoice and others. | |
214 | wxSize wxControl::GetBestSpinnerSize(const bool is_vertical) const | |
215 | { | |
216 | // take size according to layout | |
217 | wxSize bestSize( | |
218 | #if defined(__SMARTPHONE__) && defined(__WXWINCE__) | |
219 | 0,GetCharHeight() | |
220 | #else | |
221 | ::GetSystemMetrics(is_vertical ? SM_CXVSCROLL : SM_CXHSCROLL), | |
222 | ::GetSystemMetrics(is_vertical ? SM_CYVSCROLL : SM_CYHSCROLL) | |
223 | #endif | |
224 | ); | |
225 | ||
226 | // correct size as for undocumented MSW variants cases (WinCE and perhaps others) | |
227 | if (bestSize.x==0) | |
228 | bestSize.x = bestSize.y; | |
229 | if (bestSize.y==0) | |
230 | bestSize.y = bestSize.x; | |
231 | ||
232 | // double size according to layout | |
233 | if (is_vertical) | |
234 | bestSize.y *= 2; | |
235 | else | |
236 | bestSize.x *= 2; | |
237 | ||
238 | return bestSize; | |
239 | } | |
240 | ||
241 | /* static */ wxVisualAttributes | |
242 | wxControl::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) | |
243 | { | |
244 | wxVisualAttributes attrs; | |
245 | ||
246 | // old school (i.e. not "common") controls use the standard dialog font | |
247 | // by default | |
248 | attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT); | |
249 | ||
250 | // most, or at least many, of the controls use the same colours as the | |
251 | // buttons -- others will have to override this (and possibly simply call | |
252 | // GetCompositeControlsDefaultAttributes() from their versions) | |
253 | attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNTEXT); | |
254 | attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE); | |
255 | ||
256 | return attrs; | |
257 | } | |
258 | ||
259 | // another version for the "composite", i.e. non simple controls | |
260 | /* static */ wxVisualAttributes | |
261 | wxControl::GetCompositeControlsDefaultAttributes(wxWindowVariant WXUNUSED(variant)) | |
262 | { | |
263 | wxVisualAttributes attrs; | |
264 | attrs.font = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT); | |
265 | attrs.colFg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOWTEXT); | |
266 | attrs.colBg = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW); | |
267 | ||
268 | return attrs; | |
269 | } | |
270 | ||
271 | // ---------------------------------------------------------------------------- | |
272 | // message handling | |
273 | // ---------------------------------------------------------------------------- | |
274 | ||
275 | bool wxControl::ProcessCommand(wxCommandEvent& event) | |
276 | { | |
277 | return GetEventHandler()->ProcessEvent(event); | |
278 | } | |
279 | ||
280 | bool wxControl::MSWOnNotify(int idCtrl, | |
281 | WXLPARAM lParam, | |
282 | WXLPARAM* result) | |
283 | { | |
284 | wxEventType eventType wxDUMMY_INITIALIZE(wxEVT_NULL); | |
285 | ||
286 | NMHDR *hdr = (NMHDR*) lParam; | |
287 | switch ( hdr->code ) | |
288 | { | |
289 | case NM_CLICK: | |
290 | eventType = wxEVT_COMMAND_LEFT_CLICK; | |
291 | break; | |
292 | ||
293 | case NM_DBLCLK: | |
294 | eventType = wxEVT_COMMAND_LEFT_DCLICK; | |
295 | break; | |
296 | ||
297 | case NM_RCLICK: | |
298 | eventType = wxEVT_COMMAND_RIGHT_CLICK; | |
299 | break; | |
300 | ||
301 | case NM_RDBLCLK: | |
302 | eventType = wxEVT_COMMAND_RIGHT_DCLICK; | |
303 | break; | |
304 | ||
305 | case NM_SETFOCUS: | |
306 | eventType = wxEVT_COMMAND_SET_FOCUS; | |
307 | break; | |
308 | ||
309 | case NM_KILLFOCUS: | |
310 | eventType = wxEVT_COMMAND_KILL_FOCUS; | |
311 | break; | |
312 | ||
313 | case NM_RETURN: | |
314 | eventType = wxEVT_COMMAND_ENTER; | |
315 | break; | |
316 | ||
317 | default: | |
318 | return wxWindow::MSWOnNotify(idCtrl, lParam, result); | |
319 | } | |
320 | ||
321 | wxCommandEvent event(wxEVT_NULL, m_windowId); | |
322 | event.SetEventType(eventType); | |
323 | event.SetEventObject(this); | |
324 | ||
325 | return GetEventHandler()->ProcessEvent(event); | |
326 | } | |
327 | ||
328 | WXHBRUSH wxControl::DoMSWControlColor(WXHDC pDC, wxColour colBg, WXHWND hWnd) | |
329 | { | |
330 | HDC hdc = (HDC)pDC; | |
331 | if ( m_hasFgCol ) | |
332 | { | |
333 | ::SetTextColor(hdc, wxColourToRGB(GetForegroundColour())); | |
334 | } | |
335 | ||
336 | WXHBRUSH hbr = 0; | |
337 | if ( !colBg.Ok() ) | |
338 | { | |
339 | hbr = MSWGetBgBrush(pDC, hWnd); | |
340 | ||
341 | // if the control doesn't have any bg colour, foreground colour will be | |
342 | // ignored as the return value would be 0 -- so forcefully give it a | |
343 | // non default background brush in this case | |
344 | if ( !hbr && m_hasFgCol ) | |
345 | colBg = GetBackgroundColour(); | |
346 | } | |
347 | ||
348 | // use the background colour override if a valid colour is given | |
349 | if ( colBg.Ok() ) | |
350 | { | |
351 | ::SetBkColor(hdc, wxColourToRGB(colBg)); | |
352 | ||
353 | // draw children with the same colour as the parent | |
354 | wxBrush *brush = wxTheBrushList->FindOrCreateBrush(colBg, wxSOLID); | |
355 | ||
356 | hbr = (WXHBRUSH)brush->GetResourceHandle(); | |
357 | ||
358 | // if we use custom background, we should set foreground ourselves too | |
359 | if ( !m_hasFgCol ) | |
360 | { | |
361 | ::SetTextColor(hdc, ::GetSysColor(COLOR_WINDOWTEXT)); | |
362 | } | |
363 | //else: already set above | |
364 | } | |
365 | ||
366 | return hbr; | |
367 | } | |
368 | ||
369 | WXHBRUSH wxControl::MSWControlColor(WXHDC pDC, WXHWND hWnd) | |
370 | { | |
371 | wxColour colBg; | |
372 | ||
373 | if ( HasTransparentBackground() ) | |
374 | ::SetBkMode((HDC)pDC, TRANSPARENT); | |
375 | else // if the control is opaque it shouldn't use the parents background | |
376 | colBg = GetBackgroundColour(); | |
377 | ||
378 | return DoMSWControlColor(pDC, colBg, hWnd); | |
379 | } | |
380 | ||
381 | WXHBRUSH wxControl::MSWControlColorDisabled(WXHDC pDC) | |
382 | { | |
383 | return DoMSWControlColor(pDC, | |
384 | wxSystemSettings::GetColour(wxSYS_COLOUR_BTNFACE), | |
385 | GetHWND()); | |
386 | } | |
387 | ||
388 | // --------------------------------------------------------------------------- | |
389 | // global functions | |
390 | // --------------------------------------------------------------------------- | |
391 | ||
392 | // this is used in radiobox.cpp and slider95.cpp and should be removed as soon | |
393 | // as it is not needed there any more! | |
394 | // | |
395 | // Call this repeatedly for several wnds to find the overall size | |
396 | // of the widget. | |
397 | // Call it initially with wxDefaultCoord for all values in rect. | |
398 | // Keep calling for other widgets, and rect will be modified | |
399 | // to calculate largest bounding rectangle. | |
400 | void wxFindMaxSize(WXHWND wnd, RECT *rect) | |
401 | { | |
402 | int left = rect->left; | |
403 | int right = rect->right; | |
404 | int top = rect->top; | |
405 | int bottom = rect->bottom; | |
406 | ||
407 | GetWindowRect((HWND) wnd, rect); | |
408 | ||
409 | if (left < 0) | |
410 | return; | |
411 | ||
412 | if (left < rect->left) | |
413 | rect->left = left; | |
414 | ||
415 | if (right > rect->right) | |
416 | rect->right = right; | |
417 | ||
418 | if (top < rect->top) | |
419 | rect->top = top; | |
420 | ||
421 | if (bottom > rect->bottom) | |
422 | rect->bottom = bottom; | |
423 | } | |
424 | ||
425 | #endif // wxUSE_CONTROLS |