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Applied patch #421554: implementation of wxEVT_CONTEXT_MENU
[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
c42404a5 43#if defined(__WIN95__) && !(defined(__GNUWIN32_OLD__) || defined(__TWIN32__))
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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
88 // forward some messages (the key ones only so far) to the spin ctrl
89 switch ( message )
90 {
91 case WM_CHAR:
92 case WM_DEADCHAR:
93 case WM_KEYUP:
94 case WM_KEYDOWN:
95 spin->MSWWindowProc(message, wParam, lParam);
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96
97 // The control may have been deleted at this point, so check.
98 if (!(::IsWindow(hwnd) && ((wxSpinCtrl *)::GetWindowLong(hwnd, GWL_USERDATA)) == spin))
99 return 0;
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100 break;
101 }
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102 return ::CallWindowProc(CASTWNDPROC spin->GetBuddyWndProc(),
103 hwnd, message, wParam, lParam);
104}
105
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106/* static */
107wxSpinCtrl *wxSpinCtrl::GetSpinForTextCtrl(WXHWND hwndBuddy)
108{
109 wxSpinCtrl *spin = (wxSpinCtrl *)::GetWindowLong((HWND)hwndBuddy,
110 GWL_USERDATA);
111
112 int i = ms_allSpins.Index(spin);
113
114 if ( i == wxNOT_FOUND )
115 return NULL;
116
117 // sanity check
118 wxASSERT_MSG( spin->m_hwndBuddy == hwndBuddy,
119 _T("wxSpinCtrl has incorrect buddy HWND!") );
120
121 return spin;
122}
123
124// process a WM_COMMAND generated by the buddy text control
125bool wxSpinCtrl::ProcessTextCommand(WXWORD cmd, WXWORD WXUNUSED(id))
126{
e3582f7f 127 switch (cmd)
6fe19057 128 {
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129 case EN_CHANGE:
130 {
131 wxCommandEvent event(wxEVT_COMMAND_TEXT_UPDATED, GetId());
132 event.SetEventObject(this);
133 wxString val = wxGetWindowText(m_hwndBuddy);
134 event.SetString(val);
135 event.SetInt(GetValue());
136 return GetEventHandler()->ProcessEvent(event);
137 }
138 case EN_SETFOCUS:
139 case EN_KILLFOCUS:
140 {
141 wxFocusEvent event(cmd == EN_KILLFOCUS ? wxEVT_KILL_FOCUS
142 : wxEVT_SET_FOCUS,
143 m_windowId);
144 event.SetEventObject( this );
145 return GetEventHandler()->ProcessEvent(event);
146 }
147 default:
148 break;
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149 }
150
151 // not processed
152 return FALSE;
153}
154
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155void wxSpinCtrl::OnChar(wxKeyEvent& event)
156{
157 switch ( event.KeyCode() )
158 {
159 case WXK_RETURN:
160 {
161 wxCommandEvent event(wxEVT_COMMAND_TEXT_ENTER, m_windowId);
162 InitCommandEvent(event);
163 wxString val = wxGetWindowText(m_hwndBuddy);
164 event.SetString(val);
165 event.SetInt(GetValue());
166 if ( GetEventHandler()->ProcessEvent(event) )
167 return;
168 break;
169 }
170
171 case WXK_TAB:
172 // always produce navigation event - even if we process TAB
173 // ourselves the fact that we got here means that the user code
174 // decided to skip processing of this TAB - probably to let it
175 // do its default job.
176 {
177 wxNavigationKeyEvent eventNav;
178 eventNav.SetDirection(!event.ShiftDown());
179 eventNav.SetWindowChange(event.ControlDown());
180 eventNav.SetEventObject(this);
181
182 if ( GetParent()->GetEventHandler()->ProcessEvent(eventNav) )
183 return;
184 }
185 break;
186 }
187
188 // no, we didn't process it
189 event.Skip();
190}
191
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192// ----------------------------------------------------------------------------
193// construction
194// ----------------------------------------------------------------------------
195
196bool wxSpinCtrl::Create(wxWindow *parent,
197 wxWindowID id,
678cd6de 198 const wxString& value,
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199 const wxPoint& pos,
200 const wxSize& size,
201 long style,
202 int min, int max, int initial,
203 const wxString& name)
204{
205 // before using DoGetBestSize(), have to set style to let the base class
206 // know whether this is a horizontal or vertical control (we're always
207 // vertical)
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208 style |= wxSP_VERTICAL;
209 SetWindowStyle(style);
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210
211 // calculate the sizes: the size given is the toal size for both controls
212 // and we need to fit them both in the given width (height is the same)
213 wxSize sizeText(size), sizeBtn(size);
214 sizeBtn.x = wxSpinButton::DoGetBestSize().x;
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215 if ( sizeText.x <= 0 )
216 {
217 // DEFAULT_ITEM_WIDTH is the default width for the text control
218 sizeText.x = DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN + sizeBtn.x;
219 }
220
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221 sizeText.x -= sizeBtn.x + MARGIN_BETWEEN;
222 if ( sizeText.x <= 0 )
223 {
224 wxLogDebug(_T("not enough space for wxSpinCtrl!"));
225 }
226
227 wxPoint posBtn(pos);
228 posBtn.x += sizeText.x + MARGIN_BETWEEN;
229
230 // create the spin button
231 if ( !wxSpinButton::Create(parent, id, posBtn, sizeBtn, style, name) )
232 {
233 return FALSE;
234 }
235
236 SetRange(min, max);
237 SetValue(initial);
238
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239 bool want3D;
240 WXDWORD exStyle = Determine3DEffects(WS_EX_CLIENTEDGE, &want3D);
241 int msStyle = WS_CHILD;
242
243 // Even with extended styles, need to combine with WS_BORDER for them to
244 // look right.
245 if ( want3D || wxStyleHasBorder(style) )
246 msStyle |= WS_BORDER;
247
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248 if ( style & wxCLIP_SIBLINGS )
249 msStyle |= WS_CLIPSIBLINGS;
250
251
b782f2e0 252 // create the text window
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253 m_hwndBuddy = (WXHWND)::CreateWindowEx
254 (
e3582f7f 255 exStyle, // sunken border
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256 _T("EDIT"), // window class
257 NULL, // no window title
e3582f7f 258 msStyle /* | WS_CLIPSIBLINGS */, // style (will be shown later)
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259 pos.x, pos.y, // position
260 0, 0, // size (will be set later)
261 GetHwndOf(parent), // parent
262 (HMENU)-1, // control id
263 wxGetInstance(), // app instance
264 NULL // unused client data
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265 );
266
267 if ( !m_hwndBuddy )
268 {
f6bcfd97 269 wxLogLastError(wxT("CreateWindow(buddy text window)"));
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270
271 return FALSE;
272 }
273
f6bcfd97 274 // subclass the text ctrl to be able to intercept some events
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275 m_wndProcBuddy = (WXFARPROC)::GetWindowLong(GetBuddyHwnd(), GWL_WNDPROC);
276 ::SetWindowLong(GetBuddyHwnd(), GWL_USERDATA, (LONG)this);
277 ::SetWindowLong(GetBuddyHwnd(), GWL_WNDPROC, (LONG)wxBuddyTextWndProc);
f6bcfd97 278
b782f2e0 279 // should have the same font as the other controls
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280 SetFont(GetParent()->GetFont());
281
282 // set the size of the text window - can do it only now, because we
283 // couldn't call DoGetBestSize() before as font wasn't set
284 if ( sizeText.y <= 0 )
285 {
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286 int cx, cy;
287 wxGetCharSize(GetHWND(), &cx, &cy, &GetFont());
288
289 sizeText.y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy);
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290 }
291
292 DoMoveWindow(pos.x, pos.y,
293 sizeText.x + sizeBtn.x + MARGIN_BETWEEN, sizeText.y);
294
6fe19057 295 (void)::ShowWindow(GetBuddyHwnd(), SW_SHOW);
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296
297 // associate the text window with the spin button
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298 (void)::SendMessage(GetHwnd(), UDM_SETBUDDY, (WPARAM)m_hwndBuddy, 0);
299
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300 if ( !value.IsEmpty() )
301 {
302 SetValue(value);
303 }
304
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305 // do it after finishing with m_hwndBuddy creation to avoid generating
306 // initial wxEVT_COMMAND_TEXT_UPDATED message
307 ms_allSpins.Add(this);
308
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309 return TRUE;
310}
311
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312wxSpinCtrl::~wxSpinCtrl()
313{
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314 ms_allSpins.Remove(this);
315
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316 // destroy the buddy window because this pointer which wxBuddyTextWndProc
317 // uses will not soon be valid any more
6fe19057 318 ::DestroyWindow(GetBuddyHwnd());
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319}
320
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321// ----------------------------------------------------------------------------
322// wxTextCtrl-like methods
323// ----------------------------------------------------------------------------
324
325void wxSpinCtrl::SetValue(const wxString& text)
326{
6fe19057 327 if ( !::SetWindowText(GetBuddyHwnd(), text.c_str()) )
678cd6de 328 {
f6bcfd97 329 wxLogLastError(wxT("SetWindowText(buddy)"));
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330 }
331}
332
333int wxSpinCtrl::GetValue() const
334{
335 wxString val = wxGetWindowText(m_hwndBuddy);
336
337 long n;
338 if ( (wxSscanf(val, wxT("%lu"), &n) != 1) )
339 n = INT_MIN;
340
341 return n;
342}
343
baccb514 344// ----------------------------------------------------------------------------
882a8f40 345// forward some methods to subcontrols
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346// ----------------------------------------------------------------------------
347
348bool wxSpinCtrl::SetFont(const wxFont& font)
349{
350 if ( !wxWindowBase::SetFont(font) )
351 {
352 // nothing to do
353 return FALSE;
354 }
355
356 WXHANDLE hFont = GetFont().GetResourceHandle();
6fe19057 357 (void)::SendMessage(GetBuddyHwnd(), WM_SETFONT, (WPARAM)hFont, TRUE);
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358
359 return TRUE;
360}
361
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362bool wxSpinCtrl::Show(bool show)
363{
364 if ( !wxControl::Show(show) )
365 {
366 return FALSE;
367 }
368
6fe19057 369 ::ShowWindow(GetBuddyHwnd(), show ? SW_SHOW : SW_HIDE);
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370
371 return TRUE;
372}
373
374bool wxSpinCtrl::Enable(bool enable)
375{
376 if ( !wxControl::Enable(enable) )
377 {
378 return FALSE;
379 }
380
6fe19057 381 ::EnableWindow(GetBuddyHwnd(), enable);
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382
383 return TRUE;
384}
385
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386void wxSpinCtrl::SetFocus()
387{
6fe19057 388 ::SetFocus(GetBuddyHwnd());
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389}
390
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391// ----------------------------------------------------------------------------
392// event processing
393// ----------------------------------------------------------------------------
394
395void wxSpinCtrl::OnSpinChange(wxSpinEvent& eventSpin)
396{
397 wxCommandEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, GetId());
398 event.SetEventObject(this);
399 event.SetInt(eventSpin.GetPosition());
400
401 (void)GetEventHandler()->ProcessEvent(event);
402
403 if ( eventSpin.GetSkipped() )
404 {
405 event.Skip();
406 }
407}
408
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409// ----------------------------------------------------------------------------
410// size calculations
411// ----------------------------------------------------------------------------
412
f68586e5 413wxSize wxSpinCtrl::DoGetBestSize() const
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414{
415 wxSize sizeBtn = wxSpinButton::DoGetBestSize();
416 sizeBtn.x += DEFAULT_ITEM_WIDTH + MARGIN_BETWEEN;
417
418 int y;
419 wxGetCharSize(GetHWND(), NULL, &y, &GetFont());
420 y = EDIT_HEIGHT_FROM_CHAR_HEIGHT(y);
421
422 if ( sizeBtn.y < y )
423 {
424 // make the text tall enough
425 sizeBtn.y = y;
426 }
427
428 return sizeBtn;
429}
430
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431void wxSpinCtrl::DoMoveWindow(int x, int y, int width, int height)
432{
baccb514 433 int widthBtn = wxSpinButton::DoGetBestSize().x;
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434 int widthText = width - widthBtn - MARGIN_BETWEEN;
435 if ( widthText <= 0 )
436 {
437 wxLogDebug(_T("not enough space for wxSpinCtrl!"));
438 }
439
6fe19057 440 if ( !::MoveWindow(GetBuddyHwnd(), x, y, widthText, height, TRUE) )
b782f2e0 441 {
f6bcfd97 442 wxLogLastError(wxT("MoveWindow(buddy)"));
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443 }
444
445 x += widthText + MARGIN_BETWEEN;
446 if ( !::MoveWindow(GetHwnd(), x, y, widthBtn, height, TRUE) )
447 {
f6bcfd97 448 wxLogLastError(wxT("MoveWindow"));
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449 }
450}
451
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452// get total size of the control
453void wxSpinCtrl::DoGetSize(int *x, int *y) const
454{
455 RECT spinrect, textrect, ctrlrect;
456 GetWindowRect(GetHwnd(), &spinrect);
6fe19057 457 GetWindowRect(GetBuddyHwnd(), &textrect);
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458 UnionRect(&ctrlrect,&textrect, &spinrect);
459
460 if ( x )
461 *x = ctrlrect.right - ctrlrect.left;
462 if ( y )
463 *y = ctrlrect.bottom - ctrlrect.top;
464}
465
466void wxSpinCtrl::DoGetPosition(int *x, int *y) const
467{
468 // hack: pretend that our HWND is the text control just for a moment
469 WXHWND hWnd = GetHWND();
470 wxConstCast(this, wxSpinCtrl)->m_hWnd = m_hwndBuddy;
471
472 wxSpinButton::DoGetPosition(x, y);
473
474 wxConstCast(this, wxSpinCtrl)->m_hWnd = hWnd;
475}
476
b782f2e0 477#endif // __WIN95__
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478
479#endif
480 // wxUSE_SPINCTRL
481