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fix for handling TAB presses in readonly text controls
[wxWidgets.git] / src / msw / spinctrl.cpp
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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
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36#if wxUSE_SPINCTRL
37
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38#if defined(__WIN95__)
39
40#include "wx/spinctrl.h"
41#include "wx/msw/private.h"
42
ae090fdb 43#if defined(__WIN95__) && !((defined(__GNUWIN32_OLD__) || defined(__TWIN32__)) && !defined(__CYGWIN10__))
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44 #include <commctrl.h>
45#endif
b782f2e0 46
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47#include <limits.h> // for INT_MIN
48
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49// ----------------------------------------------------------------------------
50// macros
51// ----------------------------------------------------------------------------
52
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53IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxControl)
54
55BEGIN_EVENT_TABLE(wxSpinCtrl, wxSpinButton)
e3582f7f 56 EVT_CHAR(wxSpinCtrl::OnChar)
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57 EVT_SPIN(-1, wxSpinCtrl::OnSpinChange)
58END_EVENT_TABLE()
b782f2e0 59
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60#define GetBuddyHwnd() (HWND)(m_hwndBuddy)
61
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62// ----------------------------------------------------------------------------
63// constants
64// ----------------------------------------------------------------------------
65
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66// the margin between the up-down control and its buddy (can be arbitrary,
67// choose what you like - or may be decide during run-time depending on the
68// font size?)
69static const int MARGIN_BETWEEN = 1;
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70
71// ============================================================================
72// implementation
73// ============================================================================
74
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75wxArraySpins wxSpinCtrl::ms_allSpins;
76
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77// ----------------------------------------------------------------------------
78// wnd proc for the buddy text ctrl
79// ----------------------------------------------------------------------------
80
81LRESULT APIENTRY _EXPORT wxBuddyTextWndProc(HWND hwnd,
82 UINT message,
83 WPARAM wParam,
84 LPARAM lParam)
85{
86 wxSpinCtrl *spin = (wxSpinCtrl *)::GetWindowLong(hwnd, GWL_USERDATA);
87
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88 // forward some messages (the key and focus ones only so far) to
89 // the spin ctrl
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90 switch ( message )
91 {
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92 case WM_SETFOCUS:
93 case WM_KILLFOCUS:
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94 case WM_CHAR:
95 case WM_DEADCHAR:
96 case WM_KEYUP:
97 case WM_KEYDOWN:
98 spin->MSWWindowProc(message, wParam, lParam);
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99
100 // The control may have been deleted at this point, so check.
101 if (!(::IsWindow(hwnd) && ((wxSpinCtrl *)::GetWindowLong(hwnd, GWL_USERDATA)) == spin))
102 return 0;
f6bcfd97 103 break;
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104
105 case WM_GETDLGCODE:
106 // we want to get WXK_RETURN in order to generate the event for it
107 return DLGC_WANTCHARS;
f6bcfd97 108 }
350ba193 109
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110 return ::CallWindowProc(CASTWNDPROC spin->GetBuddyWndProc(),
111 hwnd, message, wParam, lParam);
112}
113
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114/* static */
115wxSpinCtrl *wxSpinCtrl::GetSpinForTextCtrl(WXHWND hwndBuddy)
116{
117 wxSpinCtrl *spin = (wxSpinCtrl *)::GetWindowLong((HWND)hwndBuddy,
118 GWL_USERDATA);
119
120 int i = ms_allSpins.Index(spin);
121
122 if ( i == wxNOT_FOUND )
123 return NULL;
124
125 // sanity check
126 wxASSERT_MSG( spin->m_hwndBuddy == hwndBuddy,
127 _T("wxSpinCtrl has incorrect buddy HWND!") );
128
129 return spin;
130}
131
132// process a WM_COMMAND generated by the buddy text control
133bool wxSpinCtrl::ProcessTextCommand(WXWORD cmd, WXWORD WXUNUSED(id))
134{
e3582f7f 135 switch (cmd)
6fe19057 136 {
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137 case EN_CHANGE:
138 {
139 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
140 event.SetEventObject(this);
141 wxString val = wxGetWindowText(m_hwndBuddy);
142 event.SetString(val);
143 event.SetInt(GetValue());
144 return GetEventHandler()->ProcessEvent(event);
145 }
146 case EN_SETFOCUS:
147 case EN_KILLFOCUS:
148 {
149 wxFocusEvent event(cmd == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
150 : wxEVT_SET_FOCUS,
151 m_windowId);
152 event.SetEventObject( this );
153 return GetEventHandler()->ProcessEvent(event);
154 }
155 default:
156 break;
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157 }
158
159 // not processed
160 return FALSE;
161}
162
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163void wxSpinCtrl::OnChar(wxKeyEvent& event)
164{
165 switch ( event.KeyCode() )
166 {
167 case WXK_RETURN:
168 {
169 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
170 InitCommandEvent(event);
171 wxString val = wxGetWindowText(m_hwndBuddy);
172 event.SetString(val);
173 event.SetInt(GetValue());
174 if ( GetEventHandler()->ProcessEvent(event) )
175 return;
176 break;
177 }
178
179 case WXK_TAB:
180 // always produce navigation event - even if we process TAB
181 // ourselves the fact that we got here means that the user code
182 // decided to skip processing of this TAB - probably to let it
183 // do its default job.
184 {
185 wxNavigationKeyEvent eventNav;
186 eventNav.SetDirection(!event.ShiftDown());
187 eventNav.SetWindowChange(event.ControlDown());
188 eventNav.SetEventObject(this);
189
190 if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
191 return;
192 }
193 break;
194 }
195
196 // no, we didn't process it
197 event.Skip();
198}
199
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200// ----------------------------------------------------------------------------
201// construction
202// ----------------------------------------------------------------------------
203
204bool wxSpinCtrl::Create(wxWindow *parent,
205 wxWindowID id,
678cd6de 206 const wxString& value,
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207 const wxPoint& pos,
208 const wxSize& size,
209 long style,
210 int min, int max, int initial,
211 const wxString& name)
212{
213 // before using DoGetBestSize(), have to set style to let the base class
214 // know whether this is a horizontal or vertical control (we're always
215 // vertical)
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216 style |= wxSP_VERTICAL;
217 SetWindowStyle(style);
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218
219 // calculate the sizes: the size given is the toal size for both controls
220 // and we need to fit them both in the given width (height is the same)
221 wxSize sizeText(size), sizeBtn(size);
222 sizeBtn.x = wxSpinButton::DoGetBestSize().x;
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223 if ( sizeText.x <= 0 )
224 {
225 // DEFAULT_ITEM_WIDTH is the default width for the text control
226 sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;
227 }
228
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229 sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
230 if ( sizeText.x <= 0 )
231 {
232 wxLogDebug(_T("not enough space for wxSpinCtrl!"));
233 }
234
235 wxPoint posBtn(pos);
236 posBtn.x += sizeText.x + MARGIN_BETWEEN;
237
238 // create the spin button
239 if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )
240 {
241 return FALSE;
242 }
243
244 SetRange(min, max);
245 SetValue(initial);
246
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247 bool want3D;
248 WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
249 int msStyle = WS_CHILD;
250
251 // Even with extended styles, need to combine with WS_BORDER for them to
252 // look right.
253 if ( want3D || wxStyleHasBorder(style) )
254 msStyle |= WS_BORDER;
255
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256 if ( style & wxCLIP_SIBLINGS )
257 msStyle |= WS_CLIPSIBLINGS;
258
b782f2e0 259 // create the text window
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260 m_hwndBuddy = (WXHWND)::CreateWindowEx
261 (
e3582f7f 262 exStyle, // sunken border
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263 _T("EDIT"), // window class
264 NULL, // no window title
e3582f7f 265 msStyle /* | WS_CLIPSIBLINGS */, // style (will be shown later)
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266 pos.x, pos.y, // position
267 0, 0, // size (will be set later)
268 GetHwndOf(parent), // parent
269 (HMENU)-1, // control id
270 wxGetInstance(), // app instance
271 NULL // unused client data
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272 );
273
274 if ( !m_hwndBuddy )
275 {
f6bcfd97 276 wxLogLastError(wxT("CreateWindow(buddy text window)"));
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277
278 return FALSE;
279 }
280
f6bcfd97 281 // subclass the text ctrl to be able to intercept some events
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282 m_wndProcBuddy = (WXFARPROC)::GetWindowLong(GetBuddyHwnd(), GWL_WNDPROC);
283 ::SetWindowLong(GetBuddyHwnd(), GWL_USERDATA, (LONG)this);
284 ::SetWindowLong(GetBuddyHwnd(), GWL_WNDPROC, (LONG)wxBuddyTextWndProc);
f6bcfd97 285
b782f2e0 286 // should have the same font as the other controls
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287 SetFont(GetParent()->GetFont());
288
289 // set the size of the text window - can do it only now, because we
290 // couldn't call DoGetBestSize() before as font wasn't set
291 if ( sizeText.y <= 0 )
292 {
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293 int cx, cy;
294 wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
295
296 sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
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297 }
298
299 DoMoveWindow(pos.x, pos.y,
300 sizeText.x + sizeBtn.x + MARGIN_BETWEEN, sizeText.y);
301
6fe19057 302 (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);
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303
304 // associate the text window with the spin button
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305 (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);
306
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307 if ( !value.IsEmpty() )
308 {
309 SetValue(value);
310 }
311
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312 // do it after finishing with m_hwndBuddy creation to avoid generating
313 // initial wxEVT_COMMAND_TEXT_UPDATED message
314 ms_allSpins.Add(this);
315
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316 return TRUE;
317}
318
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319wxSpinCtrl::~wxSpinCtrl()
320{
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321 ms_allSpins.Remove(this);
322
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323 // This removes spurious memory leak reporting
324 if (ms_allSpins.GetCount() == 0)
325 ms_allSpins.Clear();
326
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327 // destroy the buddy window because this pointer which wxBuddyTextWndProc
328 // uses will not soon be valid any more
6fe19057 329 ::DestroyWindow(GetBuddyHwnd());
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330}
331
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332// ----------------------------------------------------------------------------
333// wxTextCtrl-like methods
334// ----------------------------------------------------------------------------
335
336void wxSpinCtrl::SetValue(const wxString& text)
337{
6fe19057 338 if ( !::SetWindowText(GetBuddyHwnd(), text.c_str()) )
678cd6de 339 {
f6bcfd97 340 wxLogLastError(wxT("SetWindowText(buddy)"));
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341 }
342}
343
344int wxSpinCtrl::GetValue() const
345{
346 wxString val = wxGetWindowText(m_hwndBuddy);
347
348 long n;
349 if ( (wxSscanf(val, wxT("%lu"), &n) != 1) )
350 n = INT_MIN;
351
352 return n;
353}
354
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355void wxSpinCtrl::SetSelection(long from, long to)
356{
357 // if from and to are both -1, it means (in wxWindows) that all text should
358 // be selected - translate into Windows convention
359 if ( (from == -1) && (to == -1) )
360 {
361 from = 0;
362 }
363
364 ::SendMessage((HWND)m_hwndBuddy, EM_SETSEL, (WPARAM)from, (LPARAM)to);
365}
366
baccb514 367// ----------------------------------------------------------------------------
882a8f40 368// forward some methods to subcontrols
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369// ----------------------------------------------------------------------------
370
371bool wxSpinCtrl::SetFont(const wxFont& font)
372{
373 if ( !wxWindowBase::SetFont(font) )
374 {
375 // nothing to do
376 return FALSE;
377 }
378
379 WXHANDLE hFont = GetFont().GetResourceHandle();
6fe19057 380 (void)::SendMessage(GetBuddyHwnd(), WM_SETFONT, (WPARAM)hFont, TRUE);
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381
382 return TRUE;
383}
384
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385bool wxSpinCtrl::Show(bool show)
386{
387 if ( !wxControl::Show(show) )
388 {
389 return FALSE;
390 }
391
6fe19057 392 ::ShowWindow(GetBuddyHwnd(), show ? SW_SHOW : SW_HIDE);
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393
394 return TRUE;
395}
396
397bool wxSpinCtrl::Enable(bool enable)
398{
399 if ( !wxControl::Enable(enable) )
400 {
401 return FALSE;
402 }
403
6fe19057 404 ::EnableWindow(GetBuddyHwnd(), enable);
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405
406 return TRUE;
407}
408
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409void wxSpinCtrl::SetFocus()
410{
6fe19057 411 ::SetFocus(GetBuddyHwnd());
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412}
413
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414// ----------------------------------------------------------------------------
415// event processing
416// ----------------------------------------------------------------------------
417
418void wxSpinCtrl::OnSpinChange(wxSpinEvent& eventSpin)
419{
420 wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, GetId());
421 event.SetEventObject(this);
422 event.SetInt(eventSpin.GetPosition());
423
424 (void)GetEventHandler()->ProcessEvent(event);
425
426 if ( eventSpin.GetSkipped() )
427 {
428 event.Skip();
429 }
430}
431
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432// ----------------------------------------------------------------------------
433// size calculations
434// ----------------------------------------------------------------------------
435
f68586e5 436wxSize wxSpinCtrl::DoGetBestSize() const
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437{
438 wxSize sizeBtn = wxSpinButton::DoGetBestSize();
439 sizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;
440
441 int y;
442 wxGetCharSize(GetHWND(), NULL, &y, &GetFont());
443 y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(y);
444
445 if ( sizeBtn.y < y )
446 {
447 // make the text tall enough
448 sizeBtn.y = y;
449 }
450
451 return sizeBtn;
452}
453
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454void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
455{
baccb514 456 int widthBtn = wxSpinButton::DoGetBestSize().x;
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457 int widthText = width - widthBtn - MARGIN_BETWEEN;
458 if ( widthText <= 0 )
459 {
460 wxLogDebug(_T("not enough space for wxSpinCtrl!"));
461 }
462
6fe19057 463 if ( !::MoveWindow(GetBuddyHwnd(), x, y, widthText, height, TRUE) )
b782f2e0 464 {
f6bcfd97 465 wxLogLastError(wxT("MoveWindow(buddy)"));
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466 }
467
468 x += widthText + MARGIN_BETWEEN;
469 if ( !::MoveWindow(GetHwnd(), x, y, widthBtn, height, TRUE) )
470 {
f6bcfd97 471 wxLogLastError(wxT("MoveWindow"));
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472 }
473}
474
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475// get total size of the control
476void wxSpinCtrl::DoGetSize(int *x, int *y) const
477{
478 RECT spinrect, textrect, ctrlrect;
479 GetWindowRect(GetHwnd(), &spinrect);
6fe19057 480 GetWindowRect(GetBuddyHwnd(), &textrect);
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481 UnionRect(&ctrlrect,&textrect, &spinrect);
482
483 if ( x )
484 *x = ctrlrect.right - ctrlrect.left;
485 if ( y )
486 *y = ctrlrect.bottom - ctrlrect.top;
487}
488
489void wxSpinCtrl::DoGetPosition(int *x, int *y) const
490{
491 // hack: pretend that our HWND is the text control just for a moment
492 WXHWND hWnd = GetHWND();
493 wxConstCast(this, wxSpinCtrl)->m_hWnd = m_hwndBuddy;
494
495 wxSpinButton::DoGetPosition(x, y);
496
497 wxConstCast(this, wxSpinCtrl)->m_hWnd = hWnd;
498}
499
b782f2e0 500#endif // __WIN95__
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501
502#endif
503 // wxUSE_SPINCTRL
504