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fixed missing Idle events
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1/////////////////////////////////////////////////////////////////////////////
2// Name: msw/spinctrl.cpp
3// Purpose: wxSpinCtrl class implementation for Win32
4// Author: Vadim Zeitlin
5// Modified by:
6// Created: 22.07.99
7// RCS-ID: $Id$
8// Copyright: (c) Vadim Zeitlin
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12// ============================================================================
13// declarations
14// ============================================================================
15
16#ifdef __GNUG__
17 #pragma implementation "spinctrlbase.h"
18 #pragma implementation "spinctrl.h"
19#endif
20
21// ----------------------------------------------------------------------------
22// headers
23// ----------------------------------------------------------------------------
24
25// for compilers that support precompilation, includes "wx.h".
26#include "wx/wxprec.h"
27
28#ifdef __BORLANDC__
29 #pragma hdrstop
30#endif
31
32#ifndef WX_PRECOMP
33 #include "wx/wx.h"
34#endif
35
36#if wxUSE_SPINCTRL
37
38#if defined(__WIN95__)
39
40#include "wx/spinctrl.h"
41#include "wx/msw/private.h"
42
43#if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__))
44 #include <commctrl.h>
45#endif
46
47#include <limits.h> // for INT_MIN
48
49// ----------------------------------------------------------------------------
50// macros
51// ----------------------------------------------------------------------------
52
53IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
54
55BEGIN_EVENT_TABLE(wxSpinCtrl, wxSpinButton)
56 EVT_CHAR(wxSpinCtrl::OnChar)
57
58 EVT_SET_FOCUS(wxSpinCtrl::OnSetFocus)
59
60 EVT_SPIN(-1, wxSpinCtrl::OnSpinChange)
61END_EVENT_TABLE()
62
63#define GetBuddyHwnd() (HWND)(m_hwndBuddy)
64
65// ----------------------------------------------------------------------------
66// constants
67// ----------------------------------------------------------------------------
68
69// the margin between the up-down control and its buddy (can be arbitrary,
70// choose what you like - or may be decide during run-time depending on the
71// font size?)
72static const int MARGIN_BETWEEN = 1;
73
74// ============================================================================
75// implementation
76// ============================================================================
77
78wxArraySpins wxSpinCtrl::ms_allSpins;
79
80// ----------------------------------------------------------------------------
81// wnd proc for the buddy text ctrl
82// ----------------------------------------------------------------------------
83
84LRESULT APIENTRY _EXPORT wxBuddyTextWndProc(HWND hwnd,
85 UINT message,
86 WPARAM wParam,
87 LPARAM lParam)
88{
89 wxSpinCtrl *spin = (wxSpinCtrl *)::GetWindowLong(hwnd, GWL_USERDATA);
90
91 // forward some messages (the key and focus ones only so far) to
92 // the spin ctrl
93 switch ( message )
94 {
95 case WM_SETFOCUS:
96 // if the focus comes from the spin control itself, don't set it
97 // back to it -- we don't want to go into an infinite loop
98 if ( wParam == spin->GetHWND() )
99 break;
100 //else: fall through
101
102 case WM_KILLFOCUS:
103 case WM_CHAR:
104 case WM_DEADCHAR:
105 case WM_KEYUP:
106 case WM_KEYDOWN:
107 spin->MSWWindowProc(message, wParam, lParam);
108
109 // The control may have been deleted at this point, so check.
110 if (!(::IsWindow(hwnd) && ((wxSpinCtrl *)::GetWindowLong(hwnd, GWL_USERDATA)) == spin))
111 return 0;
112 break;
113
114 case WM_GETDLGCODE:
115 // we want to get WXK_RETURN in order to generate the event for it
116 return DLGC_WANTCHARS;
117 }
118
119 return ::CallWindowProc(CASTWNDPROC spin->GetBuddyWndProc(),
120 hwnd, message, wParam, lParam);
121}
122
123/* static */
124wxSpinCtrl *wxSpinCtrl::GetSpinForTextCtrl(WXHWND hwndBuddy)
125{
126 wxSpinCtrl *spin = (wxSpinCtrl *)::GetWindowLong((HWND)hwndBuddy,
127 GWL_USERDATA);
128
129 int i = ms_allSpins.Index(spin);
130
131 if ( i == wxNOT_FOUND )
132 return NULL;
133
134 // sanity check
135 wxASSERT_MSG( spin->m_hwndBuddy == hwndBuddy,
136 _T("wxSpinCtrl has incorrect buddy HWND!") );
137
138 return spin;
139}
140
141// process a WM_COMMAND generated by the buddy text control
142bool wxSpinCtrl::ProcessTextCommand(WXWORD cmd, WXWORD WXUNUSED(id))
143{
144 switch (cmd)
145 {
146 case EN_CHANGE:
147 {
148 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
149 event.SetEventObject(this);
150 wxString val = wxGetWindowText(m_hwndBuddy);
151 event.SetString(val);
152 event.SetInt(GetValue());
153 return GetEventHandler()->ProcessEvent(event);
154 }
155 case EN_SETFOCUS:
156 case EN_KILLFOCUS:
157 {
158 wxFocusEvent event(cmd == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
159 : wxEVT_SET_FOCUS,
160 m_windowId);
161 event.SetEventObject( this );
162 return GetEventHandler()->ProcessEvent(event);
163 }
164 default:
165 break;
166 }
167
168 // not processed
169 return FALSE;
170}
171
172void wxSpinCtrl::OnChar(wxKeyEvent& event)
173{
174 switch ( event.GetKeyCode() )
175 {
176 case WXK_RETURN:
177 {
178 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
179 InitCommandEvent(event);
180 wxString val = wxGetWindowText(m_hwndBuddy);
181 event.SetString(val);
182 event.SetInt(GetValue());
183 if ( GetEventHandler()->ProcessEvent(event) )
184 return;
185 break;
186 }
187
188 case WXK_TAB:
189 // always produce navigation event - even if we process TAB
190 // ourselves the fact that we got here means that the user code
191 // decided to skip processing of this TAB - probably to let it
192 // do its default job.
193 {
194 wxNavigationKeyEvent eventNav;
195 eventNav.SetDirection(!event.ShiftDown());
196 eventNav.SetWindowChange(event.ControlDown());
197 eventNav.SetEventObject(this);
198
199 if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
200 return;
201 }
202 break;
203 }
204
205 // no, we didn't process it
206 event.Skip();
207}
208
209void wxSpinCtrl::OnSetFocus(wxFocusEvent& event)
210{
211 // when we get focus, give it to our buddy window as it needs it more than
212 // we do
213 ::SetFocus((HWND)m_hwndBuddy);
214
215 event.Skip();
216}
217
218// ----------------------------------------------------------------------------
219// construction
220// ----------------------------------------------------------------------------
221
222bool wxSpinCtrl::Create(wxWindow *parent,
223 wxWindowID id,
224 const wxString& value,
225 const wxPoint& pos,
226 const wxSize& size,
227 long style,
228 int min, int max, int initial,
229 const wxString& name)
230{
231 // before using DoGetBestSize(), have to set style to let the base class
232 // know whether this is a horizontal or vertical control (we're always
233 // vertical)
234 style |= wxSP_VERTICAL;
235
236 if ( (style & wxBORDER_MASK) == wxBORDER_DEFAULT )
237 style |= wxBORDER_SUNKEN;
238
239 SetWindowStyle(style);
240
241 // calculate the sizes: the size given is the toal size for both controls
242 // and we need to fit them both in the given width (height is the same)
243 wxSize sizeText(size), sizeBtn(size);
244 sizeBtn.x = wxSpinButton::DoGetBestSize().x;
245 if ( sizeText.x <= 0 )
246 {
247 // DEFAULT_ITEM_WIDTH is the default width for the text control
248 sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;
249 }
250
251 sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
252 if ( sizeText.x <= 0 )
253 {
254 wxLogDebug(_T("not enough space for wxSpinCtrl!"));
255 }
256
257 wxPoint posBtn(pos);
258 posBtn.x += sizeText.x + MARGIN_BETWEEN;
259
260 // we must create the text control before the spin button for the purpose
261 // of the dialog navigation: if there is a static text just before the spin
262 // control, activating it by Alt-letter should give focus to the text
263 // control, not the spin and the dialog navigation code will give focus to
264 // the next control (at Windows level), not the one after it
265
266 // create the text window
267
268 bool want3D;
269 WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
270 int msStyle = WS_CHILD;
271
272 // Even with extended styles, need to combine with WS_BORDER for them to
273 // look right.
274 if ( want3D || wxStyleHasBorder(style) )
275 msStyle |= WS_BORDER;
276
277 if ( style & wxCLIP_SIBLINGS )
278 msStyle |= WS_CLIPSIBLINGS;
279
280 m_hwndBuddy = (WXHWND)::CreateWindowEx
281 (
282 exStyle, // sunken border
283 _T("EDIT"), // window class
284 NULL, // no window title
285 msStyle, // style (will be shown later)
286 pos.x, pos.y, // position
287 0, 0, // size (will be set later)
288 GetHwndOf(parent), // parent
289 (HMENU)-1, // control id
290 wxGetInstance(), // app instance
291 NULL // unused client data
292 );
293
294 if ( !m_hwndBuddy )
295 {
296 wxLogLastError(wxT("CreateWindow(buddy text window)"));
297
298 return FALSE;
299 }
300
301
302 // create the spin button
303 if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )
304 {
305 return FALSE;
306 }
307
308 SetRange(min, max);
309 SetValue(initial);
310
311 // subclass the text ctrl to be able to intercept some events
312 m_wndProcBuddy = (WXFARPROC)::GetWindowLong(GetBuddyHwnd(), GWL_WNDPROC);
313 ::SetWindowLong(GetBuddyHwnd(), GWL_USERDATA, (LONG)this);
314 ::SetWindowLong(GetBuddyHwnd(), GWL_WNDPROC, (LONG)wxBuddyTextWndProc);
315
316 // should have the same font as the other controls
317 SetFont(GetParent()->GetFont());
318
319 // set the size of the text window - can do it only now, because we
320 // couldn't call DoGetBestSize() before as font wasn't set
321 if ( sizeText.y <= 0 )
322 {
323 int cx, cy;
324 wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
325
326 sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
327 }
328
329 DoMoveWindow(pos.x, pos.y,
330 sizeText.x + sizeBtn.x + MARGIN_BETWEEN, sizeText.y);
331
332 (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);
333
334 // associate the text window with the spin button
335 (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);
336
337 if ( !value.IsEmpty() )
338 {
339 SetValue(value);
340 }
341
342 // do it after finishing with m_hwndBuddy creation to avoid generating
343 // initial wxEVT_COMMAND_TEXT_UPDATED message
344 ms_allSpins.Add(this);
345
346 return TRUE;
347}
348
349wxSpinCtrl::~wxSpinCtrl()
350{
351 ms_allSpins.Remove(this);
352
353 // This removes spurious memory leak reporting
354 if (ms_allSpins.GetCount() == 0)
355 ms_allSpins.Clear();
356
357 // destroy the buddy window because this pointer which wxBuddyTextWndProc
358 // uses will not soon be valid any more
359 ::DestroyWindow(GetBuddyHwnd());
360}
361
362// ----------------------------------------------------------------------------
363// wxTextCtrl-like methods
364// ----------------------------------------------------------------------------
365
366void wxSpinCtrl::SetValue(const wxString& text)
367{
368 if ( !::SetWindowText(GetBuddyHwnd(), text.c_str()) )
369 {
370 wxLogLastError(wxT("SetWindowText(buddy)"));
371 }
372}
373
374int wxSpinCtrl::GetValue() const
375{
376 wxString val = wxGetWindowText(m_hwndBuddy);
377
378 long n;
379 if ( (wxSscanf(val, wxT("%lu"), &n) != 1) )
380 n = INT_MIN;
381
382 return n;
383}
384
385void wxSpinCtrl::SetSelection(long from, long to)
386{
387 // if from and to are both -1, it means (in wxWindows) that all text should
388 // be selected - translate into Windows convention
389 if ( (from == -1) && (to == -1) )
390 {
391 from = 0;
392 }
393
394 ::SendMessage((HWND)m_hwndBuddy, EM_SETSEL, (WPARAM)from, (LPARAM)to);
395}
396
397// ----------------------------------------------------------------------------
398// forward some methods to subcontrols
399// ----------------------------------------------------------------------------
400
401bool wxSpinCtrl::SetFont(const wxFont& font)
402{
403 if ( !wxWindowBase::SetFont(font) )
404 {
405 // nothing to do
406 return FALSE;
407 }
408
409 WXHANDLE hFont = GetFont().GetResourceHandle();
410 (void)::SendMessage(GetBuddyHwnd(), WM_SETFONT, (WPARAM)hFont, TRUE);
411
412 return TRUE;
413}
414
415bool wxSpinCtrl::Show(bool show)
416{
417 if ( !wxControl::Show(show) )
418 {
419 return FALSE;
420 }
421
422 ::ShowWindow(GetBuddyHwnd(), show ? SW_SHOW : SW_HIDE);
423
424 return TRUE;
425}
426
427bool wxSpinCtrl::Enable(bool enable)
428{
429 if ( !wxControl::Enable(enable) )
430 {
431 return FALSE;
432 }
433
434 ::EnableWindow(GetBuddyHwnd(), enable);
435
436 return TRUE;
437}
438
439void wxSpinCtrl::SetFocus()
440{
441 ::SetFocus(GetBuddyHwnd());
442}
443
444// ----------------------------------------------------------------------------
445// event processing
446// ----------------------------------------------------------------------------
447
448void wxSpinCtrl::OnSpinChange(wxSpinEvent& eventSpin)
449{
450 wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, GetId());
451 event.SetEventObject(this);
452 event.SetInt(eventSpin.GetPosition());
453
454 (void)GetEventHandler()->ProcessEvent(event);
455
456 if ( eventSpin.GetSkipped() )
457 {
458 event.Skip();
459 }
460}
461
462// ----------------------------------------------------------------------------
463// size calculations
464// ----------------------------------------------------------------------------
465
466wxSize wxSpinCtrl::DoGetBestSize() const
467{
468 wxSize sizeBtn = wxSpinButton::DoGetBestSize();
469 sizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;
470
471 int y;
472 wxGetCharSize(GetHWND(), NULL, &y, &GetFont());
473 y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(y);
474
475 if ( sizeBtn.y < y )
476 {
477 // make the text tall enough
478 sizeBtn.y = y;
479 }
480
481 return sizeBtn;
482}
483
484void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
485{
486 int widthBtn = wxSpinButton::DoGetBestSize().x;
487 int widthText = width - widthBtn - MARGIN_BETWEEN;
488 if ( widthText <= 0 )
489 {
490 wxLogDebug(_T("not enough space for wxSpinCtrl!"));
491 }
492
493 if ( !::MoveWindow(GetBuddyHwnd(), x, y, widthText, height, TRUE) )
494 {
495 wxLogLastError(wxT("MoveWindow(buddy)"));
496 }
497
498 x += widthText + MARGIN_BETWEEN;
499 if ( !::MoveWindow(GetHwnd(), x, y, widthBtn, height, TRUE) )
500 {
501 wxLogLastError(wxT("MoveWindow"));
502 }
503}
504
505// get total size of the control
506void wxSpinCtrl::DoGetSize(int *x, int *y) const
507{
508 RECT spinrect, textrect, ctrlrect;
509 GetWindowRect(GetHwnd(), &spinrect);
510 GetWindowRect(GetBuddyHwnd(), &textrect);
511 UnionRect(&ctrlrect,&textrect, &spinrect);
512
513 if ( x )
514 *x = ctrlrect.right - ctrlrect.left;
515 if ( y )
516 *y = ctrlrect.bottom - ctrlrect.top;
517}
518
519void wxSpinCtrl::DoGetPosition(int *x, int *y) const
520{
521 // hack: pretend that our HWND is the text control just for a moment
522 WXHWND hWnd = GetHWND();
523 wxConstCast(this, wxSpinCtrl)->m_hWnd = m_hwndBuddy;
524
525 wxSpinButton::DoGetPosition(x, y);
526
527 wxConstCast(this, wxSpinCtrl)->m_hWnd = hWnd;
528}
529
530#endif // __WIN95__
531
532#endif
533 // wxUSE_SPINCTRL
534