]> git.saurik.com Git - wxWidgets.git/blame - src/msw/button.cpp
unused win_gtk stuff
[wxWidgets.git] / src / msw / button.cpp
CommitLineData
2bda0e17 1/////////////////////////////////////////////////////////////////////////////
f1e01716 2// Name: src/msw/button.cpp
2bda0e17
KB
3// Purpose: wxButton
4// Author: Julian Smart
5// Modified by:
6// Created: 04/01/98
7// RCS-ID: $Id$
6c9a19aa 8// Copyright: (c) Julian Smart
65571936 9// Licence: wxWindows licence
2bda0e17
KB
10/////////////////////////////////////////////////////////////////////////////
11
edccf428
VZ
12// ============================================================================
13// declarations
14// ============================================================================
15
16// ----------------------------------------------------------------------------
17// headers
18// ----------------------------------------------------------------------------
cd0b1709 19
2bda0e17
KB
20// For compilers that support precompilation, includes "wx.h".
21#include "wx/wxprec.h"
22
23#ifdef __BORLANDC__
edccf428 24 #pragma hdrstop
2bda0e17
KB
25#endif
26
1e6feb95
VZ
27#if wxUSE_BUTTON
28
f1e01716
WS
29#include "wx/button.h"
30
2bda0e17 31#ifndef WX_PRECOMP
bac409a0 32 #include "wx/app.h"
edccf428 33 #include "wx/brush.h"
4e938f5b 34 #include "wx/panel.h"
8a4df159 35 #include "wx/bmpbuttn.h"
fb39c7ec
RR
36 #include "wx/settings.h"
37 #include "wx/dcscreen.h"
61e6a2ab 38 #include "wx/dcclient.h"
2bda0e17
KB
39#endif
40
5f7bcb48 41#include "wx/stockitem.h"
2376eee2 42#include "wx/tokenzr.h"
2bda0e17
KB
43#include "wx/msw/private.h"
44
edccf428
VZ
45// ----------------------------------------------------------------------------
46// macros
47// ----------------------------------------------------------------------------
48
51596bcb 49#if wxUSE_EXTENDED_RTTI
067e9be6 50
f3291a82
SC
51WX_DEFINE_FLAGS( wxButtonStyle )
52
3ff066a4 53wxBEGIN_FLAGS( wxButtonStyle )
f3291a82
SC
54 // new style border flags, we put them first to
55 // use them for streaming out
3ff066a4
SC
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)
fcf90ee1 62
f3291a82 63 // old style border flags
3ff066a4
SC
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)
cb0afb26 69 wxFLAGS_MEMBER(wxBORDER)
f3291a82 70
bc9fb572 71 // standard window styles
3ff066a4
SC
72 wxFLAGS_MEMBER(wxTAB_TRAVERSAL)
73 wxFLAGS_MEMBER(wxCLIP_CHILDREN)
74 wxFLAGS_MEMBER(wxTRANSPARENT_WINDOW)
75 wxFLAGS_MEMBER(wxWANTS_CHARS)
cb0afb26 76 wxFLAGS_MEMBER(wxFULL_REPAINT_ON_RESIZE)
3ff066a4
SC
77 wxFLAGS_MEMBER(wxALWAYS_SHOW_SB )
78 wxFLAGS_MEMBER(wxVSCROLL)
79 wxFLAGS_MEMBER(wxHSCROLL)
80
81 wxFLAGS_MEMBER(wxBU_LEFT)
82 wxFLAGS_MEMBER(wxBU_RIGHT)
83 wxFLAGS_MEMBER(wxBU_TOP)
84 wxFLAGS_MEMBER(wxBU_BOTTOM)
85 wxFLAGS_MEMBER(wxBU_EXACTFIT)
86wxEND_FLAGS( wxButtonStyle )
067e9be6 87
51596bcb
SC
88IMPLEMENT_DYNAMIC_CLASS_XTI(wxButton, wxControl,"wx/button.h")
89
3ff066a4 90wxBEGIN_PROPERTIES_TABLE(wxButton)
fcf90ee1 91 wxEVENT_PROPERTY( Click , wxEVT_COMMAND_BUTTON_CLICKED , wxCommandEvent)
067e9be6 92
fcf90ee1
WS
93 wxPROPERTY( Font , wxFont , SetFont , GetFont , EMPTY_MACROVALUE, 0 /*flags*/ , wxT("Helpstring") , wxT("group"))
94 wxPROPERTY( Label, wxString , SetLabel, GetLabel, wxString(), 0 /*flags*/ , wxT("Helpstring") , wxT("group") )
067e9be6 95
af498247 96 wxPROPERTY_FLAGS( WindowStyle , wxButtonStyle , long , SetWindowStyleFlag , GetWindowStyleFlag , EMPTY_MACROVALUE , 0 /*flags*/ , wxT("Helpstring") , wxT("group")) // style
51741307 97
3ff066a4 98wxEND_PROPERTIES_TABLE()
51596bcb 99
3ff066a4
SC
100wxBEGIN_HANDLERS_TABLE(wxButton)
101wxEND_HANDLERS_TABLE()
51596bcb 102
3ff066a4 103wxCONSTRUCTOR_6( wxButton , wxWindow* , Parent , wxWindowID , Id , wxString , Label , wxPoint , Position , wxSize , Size , long , WindowStyle )
51596bcb
SC
104
105
106#else
cd0b1709 107IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl)
51596bcb 108#endif
2bda0e17 109
edccf428
VZ
110// this macro tries to adjust the default button height to a reasonable value
111// using the char height as the base
1c4a764c 112#define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10)
2bda0e17 113
edccf428
VZ
114// ============================================================================
115// implementation
116// ============================================================================
117
118// ----------------------------------------------------------------------------
119// creation/destruction
120// ----------------------------------------------------------------------------
121
122bool wxButton::Create(wxWindow *parent,
123 wxWindowID id,
5f7bcb48 124 const wxString& lbl,
edccf428
VZ
125 const wxPoint& pos,
126 const wxSize& size,
127 long style,
128 const wxValidator& validator,
129 const wxString& name)
2bda0e17 130{
5f7bcb48
VS
131 wxString label(lbl);
132 if (label.empty() && wxIsStockID(id))
c87fc285
JS
133 {
134 // On Windows, some buttons aren't supposed to have
135 // mnemonics, so strip them out.
f1e01716
WS
136
137 label = wxGetStockLabel(id
c87fc285
JS
138#if defined(__WXMSW__) || defined(__WXWINCE__)
139 , ( id != wxID_OK &&
140 id != wxID_CANCEL &&
141 id != wxID_CLOSE )
142#endif
143 );
f1e01716
WS
144 }
145
5b2f31eb 146 if ( !CreateControl(parent, id, pos, size, style, validator, name) )
fcf90ee1 147 return false;
edccf428 148
8292017c
VZ
149 WXDWORD exstyle;
150 WXDWORD msStyle = MSWGetStyle(style, &exstyle);
151
152#ifdef __WIN32__
153 // if the label contains several lines we must explicitly tell the button
154 // about it or it wouldn't draw it correctly ("\n"s would just appear as
155 // black boxes)
156 //
157 // NB: we do it here and not in MSWGetStyle() because we need the label
158 // value and m_label is not set yet when MSWGetStyle() is called;
159 // besides changing BS_MULTILINE during run-time is pointless anyhow
160 if ( label.find(_T('\n')) != wxString::npos )
161 {
162 msStyle |= BS_MULTILINE;
163 }
164#endif // __WIN32__
165
166 return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle);
5b2f31eb
VZ
167}
168
169wxButton::~wxButton()
170{
171}
edccf428 172
5b2f31eb
VZ
173// ----------------------------------------------------------------------------
174// flags
175// ----------------------------------------------------------------------------
cd0b1709 176
5b2f31eb
VZ
177WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const
178{
179 // buttons never have an external border, they draw their own one
180 WXDWORD msStyle = wxControl::MSWGetStyle
181 (
182 (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle
183 );
f6bcfd97 184
5b2f31eb
VZ
185 // we must use WS_CLIPSIBLINGS with the buttons or they would draw over
186 // each other in any resizeable dialog which has more than one button in
187 // the bottom
188 msStyle |= WS_CLIPSIBLINGS;
b0766406 189
f6bcfd97 190#ifdef __WIN32__
5b2f31eb
VZ
191 // don't use "else if" here: weird as it is, but you may combine wxBU_LEFT
192 // and wxBU_RIGHT to get BS_CENTER!
193 if ( style & wxBU_LEFT )
f6bcfd97 194 msStyle |= BS_LEFT;
5b2f31eb 195 if ( style & wxBU_RIGHT )
f6bcfd97 196 msStyle |= BS_RIGHT;
5b2f31eb 197 if ( style & wxBU_TOP )
f6bcfd97 198 msStyle |= BS_TOP;
5b2f31eb 199 if ( style & wxBU_BOTTOM )
f6bcfd97 200 msStyle |= BS_BOTTOM;
8cc4850c 201#ifndef __WXWINCE__
8a094d7b
JS
202 // flat 2d buttons
203 if ( style & wxNO_BORDER )
204 msStyle |= BS_FLAT;
8cc4850c 205#endif // __WXWINCE__
5b2f31eb 206#endif // __WIN32__
edccf428 207
5b2f31eb 208 return msStyle;
2bda0e17
KB
209}
210
edccf428
VZ
211// ----------------------------------------------------------------------------
212// size management including autosizing
213// ----------------------------------------------------------------------------
214
f68586e5 215wxSize wxButton::DoGetBestSize() const
2bda0e17 216{
c4e28380 217 wxClientDC dc(wx_const_cast(wxButton *, this));
0c8b041f 218 dc.SetFont(GetFont());
4438caf4 219
c4e28380
VZ
220 wxCoord wBtn,
221 hBtn;
9f8130d6 222 dc.GetMultiLineTextExtent(wxStripMenuCodes(GetLabel()), &wBtn, &hBtn);
2376eee2 223
1e023926 224 // add a margin -- the button is wider than just its label
c4e28380
VZ
225 wBtn += 3*GetCharWidth();
226 hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hBtn);
4438caf4 227
1e023926
VZ
228 // all buttons have at least the standard size unless the user explicitly
229 // wants them to be of smaller size and used wxBU_EXACTFIT style when
230 // creating the button
231 if ( !HasFlag(wxBU_EXACTFIT) )
188b9f2e
RD
232 {
233 wxSize sz = GetDefaultSize();
1e023926
VZ
234 if (wBtn > sz.x)
235 sz.x = wBtn;
236 if (hBtn > sz.y)
237 sz.y = hBtn;
238
188b9f2e
RD
239 return sz;
240 }
a63f2bec 241
31582e4e
RD
242 wxSize best(wBtn, hBtn);
243 CacheBestSize(best);
244 return best;
2bda0e17
KB
245}
246
e1f36ff8 247/* static */
1e6feb95 248wxSize wxButtonBase::GetDefaultSize()
e1f36ff8 249{
8c3c31d4 250 static wxSize s_sizeBtn;
e1f36ff8 251
8c3c31d4
VZ
252 if ( s_sizeBtn.x == 0 )
253 {
254 wxScreenDC dc;
a756f210 255 dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT));
8c3c31d4
VZ
256
257 // the size of a standard button in the dialog units is 50x14,
258 // translate this to pixels
259 // NB1: the multipliers come from the Windows convention
260 // NB2: the extra +1/+2 were needed to get the size be the same as the
261 // size of the buttons in the standard dialog - I don't know how
262 // this happens, but on my system this size is 75x23 in pixels and
263 // 23*8 isn't even divisible by 14... Would be nice to understand
264 // why these constants are needed though!
265 s_sizeBtn.x = (50 * (dc.GetCharWidth() + 1))/4;
266 s_sizeBtn.y = ((14 * dc.GetCharHeight()) + 2)/8;
267 }
e1f36ff8 268
8c3c31d4 269 return s_sizeBtn;
e1f36ff8
VZ
270}
271
4438caf4 272// ----------------------------------------------------------------------------
036da5e3 273// default button handling
4438caf4
VZ
274// ----------------------------------------------------------------------------
275
d78f09e2
VZ
276/*
277 "Everything you ever wanted to know about the default buttons" or "Why do we
278 have to do all this?"
279
280 In MSW the default button should be activated when the user presses Enter
281 and the current control doesn't process Enter itself somehow. This is
282 handled by ::DefWindowProc() (or maybe ::DefDialogProc()) using DM_SETDEFID
283 Another aspect of "defaultness" is that the default button has different
284 appearance: this is due to BS_DEFPUSHBUTTON style which is completely
7fb1b2b4
VZ
285 separate from DM_SETDEFID stuff (!). Also note that BS_DEFPUSHBUTTON should
286 be unset if our parent window is not active so it should be unset whenever
287 we lose activation and set back when we regain it.
d78f09e2
VZ
288
289 Final complication is that when a button is active, it should be the default
290 one, i.e. pressing Enter on a button always activates it and not another
291 one.
292
293 We handle this by maintaining a permanent and a temporary default items in
294 wxControlContainer (both may be NULL). When a button becomes the current
295 control (i.e. gets focus) it sets itself as the temporary default which
296 ensures that it has the right appearance and that Enter will be redirected
297 to it. When the button loses focus, it unsets the temporary default and so
298 the default item will be the permanent default -- that is the default button
299 if any had been set or none otherwise, which is just what we want.
300
7fb1b2b4
VZ
301 NB: all this is quite complicated by now and the worst is that normally
302 it shouldn't be necessary at all as for the normal Windows programs
303 DefWindowProc() and IsDialogMessage() take care of all this
77ffb593 304 automatically -- however in wxWidgets programs this doesn't work for
7fb1b2b4
VZ
305 nested hierarchies (i.e. a notebook inside a notebook) for unknown
306 reason and so we have to reproduce all this code ourselves. It would be
307 very nice if we could avoid doing it.
d78f09e2
VZ
308 */
309
036da5e3 310// set this button as the (permanently) default one in its panel
edccf428 311void wxButton::SetDefault()
2bda0e17 312{
edccf428 313 wxWindow *parent = GetParent();
2bda0e17 314
036da5e3
VZ
315 wxCHECK_RET( parent, _T("button without parent?") );
316
77ffb593 317 // set this one as the default button both for wxWidgets ...
036da5e3 318 wxWindow *winOldDefault = parent->SetDefaultItem(this);
036da5e3 319
7fb1b2b4 320 // ... and Windows
fcf90ee1
WS
321 SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false);
322 SetDefaultStyle(this, true);
036da5e3
VZ
323}
324
7fb1b2b4 325// set this button as being currently default
036da5e3
VZ
326void wxButton::SetTmpDefault()
327{
328 wxWindow *parent = GetParent();
329
330 wxCHECK_RET( parent, _T("button without parent?") );
331
332 wxWindow *winOldDefault = parent->GetDefaultItem();
333 parent->SetTmpDefaultItem(this);
7fb1b2b4 334
fcf90ee1
WS
335 SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), false);
336 SetDefaultStyle(this, true);
036da5e3
VZ
337}
338
7fb1b2b4 339// unset this button as currently default, it may still stay permanent default
036da5e3
VZ
340void wxButton::UnsetTmpDefault()
341{
342 wxWindow *parent = GetParent();
343
344 wxCHECK_RET( parent, _T("button without parent?") );
345
346 parent->SetTmpDefaultItem(NULL);
347
348 wxWindow *winOldDefault = parent->GetDefaultItem();
7fb1b2b4 349
fcf90ee1
WS
350 SetDefaultStyle(this, false);
351 SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), true);
036da5e3 352}
8ed57d93 353
036da5e3
VZ
354/* static */
355void
7fb1b2b4 356wxButton::SetDefaultStyle(wxButton *btn, bool on)
036da5e3 357{
7fb1b2b4
VZ
358 // we may be called with NULL pointer -- simpler to do the check here than
359 // in the caller which does wxDynamicCast()
360 if ( !btn )
361 return;
362
363 // first, let DefDlgProc() know about the new default button
364 if ( on )
5d1d2d46 365 {
7fb1b2b4
VZ
366 // we shouldn't set BS_DEFPUSHBUTTON for any button if we don't have
367 // focus at all any more
368 if ( !wxTheApp->IsActive() )
369 return;
cd0b1709 370
7fb1b2b4
VZ
371 // look for a panel-like window
372 wxWindow *win = btn->GetParent();
373 while ( win && !win->HasFlag(wxTAB_TRAVERSAL) )
374 win = win->GetParent();
375
376 if ( win )
be4017f8 377 {
7fb1b2b4
VZ
378 ::SendMessage(GetHwndOf(win), DM_SETDEFID, btn->GetId(), 0L);
379
380 // sending DM_SETDEFID also changes the button style to
381 // BS_DEFPUSHBUTTON so there is nothing more to do
be4017f8 382 }
5d1d2d46
VZ
383 }
384
7fb1b2b4
VZ
385 // then also change the style as needed
386 long style = ::GetWindowLong(GetHwndOf(btn), GWL_STYLE);
387 if ( !(style & BS_DEFPUSHBUTTON) == on )
be4017f8 388 {
7fb1b2b4
VZ
389 // don't do it with the owner drawn buttons because it will
390 // reset BS_OWNERDRAW style bit too (as BS_OWNERDRAW &
391 // BS_DEFPUSHBUTTON != 0)!
036da5e3
VZ
392 if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
393 {
7fb1b2b4
VZ
394 ::SendMessage(GetHwndOf(btn), BM_SETSTYLE,
395 on ? style | BS_DEFPUSHBUTTON
396 : style & ~BS_DEFPUSHBUTTON,
397 1L /* redraw */);
036da5e3 398 }
7fb1b2b4 399 else // owner drawn
036da5e3 400 {
7fb1b2b4
VZ
401 // redraw the button - it will notice itself that it's
402 // [not] the default one [any longer]
403 btn->Refresh();
036da5e3 404 }
be4017f8 405 }
7fb1b2b4 406 //else: already has correct style
2bda0e17
KB
407}
408
edccf428
VZ
409// ----------------------------------------------------------------------------
410// helpers
411// ----------------------------------------------------------------------------
412
413bool wxButton::SendClickEvent()
2bda0e17 414{
edccf428
VZ
415 wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, GetId());
416 event.SetEventObject(this);
417
418 return ProcessCommand(event);
2bda0e17
KB
419}
420
edccf428 421void wxButton::Command(wxCommandEvent & event)
2bda0e17 422{
edccf428 423 ProcessCommand(event);
2bda0e17
KB
424}
425
edccf428
VZ
426// ----------------------------------------------------------------------------
427// event/message handlers
428// ----------------------------------------------------------------------------
2bda0e17 429
33ac7e6f 430bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id))
edccf428 431{
fcf90ee1 432 bool processed = false;
57c0af52 433 switch ( param )
edccf428 434 {
5aab763c
RD
435 // NOTE: Apparently older versions (NT 4?) of the common controls send
436 // BN_DOUBLECLICKED but not a second BN_CLICKED for owner-drawn
87b6002d 437 // buttons, so in order to send two EVT_BUTTON events we should
5aab763c
RD
438 // catch both types. Currently (Feb 2003) up-to-date versions of
439 // win98, win2k and winXP all send two BN_CLICKED messages for
440 // all button types, so we don't catch BN_DOUBLECLICKED anymore
441 // in order to not get 3 EVT_BUTTON events. If this is a problem
442 // then we need to figure out which version of the comctl32 changed
443 // this behaviour and test for it.
444
a95e38c0
VZ
445 case 1: // message came from an accelerator
446 case BN_CLICKED: // normal buttons send this
57c0af52
VZ
447 processed = SendClickEvent();
448 break;
edccf428 449 }
2bda0e17 450
edccf428 451 return processed;
2bda0e17
KB
452}
453
c140b7e7 454WXLRESULT wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam)
678cd6de 455{
87b6002d 456 // when we receive focus, we want to temporarily become the default button in
036da5e3
VZ
457 // our parent panel so that pressing "Enter" would activate us -- and when
458 // losing it we should restore the previous default button as well
be4017f8 459 if ( nMsg == WM_SETFOCUS )
678cd6de 460 {
036da5e3 461 SetTmpDefault();
be4017f8 462
036da5e3
VZ
463 // let the default processing take place too
464 }
465 else if ( nMsg == WM_KILLFOCUS )
466 {
467 UnsetTmpDefault();
678cd6de 468 }
a95e38c0
VZ
469 else if ( nMsg == WM_LBUTTONDBLCLK )
470 {
f6bcfd97
BP
471 // emulate a click event to force an owner-drawn button to change its
472 // appearance - without this, it won't do it
473 (void)wxControl::MSWWindowProc(WM_LBUTTONDOWN, wParam, lParam);
474
036da5e3 475 // and continue with processing the message normally as well
a95e38c0 476 }
678cd6de
VZ
477
478 // let the base class do all real processing
479 return wxControl::MSWWindowProc(nMsg, wParam, lParam);
480}
cd0b1709
VZ
481
482// ----------------------------------------------------------------------------
483// owner-drawn buttons support
484// ----------------------------------------------------------------------------
485
486#ifdef __WIN32__
487
488// drawing helpers
489
490static void DrawButtonText(HDC hdc,
491 RECT *pRect,
492 const wxString& text,
493 COLORREF col)
494{
495 COLORREF colOld = SetTextColor(hdc, col);
496 int modeOld = SetBkMode(hdc, TRANSPARENT);
497
cbbb6724
VZ
498 if ( text.find(_T('\n')) != wxString::npos )
499 {
500 // draw multiline label
501
502 // first we need to compute its bounding rect
503 RECT rc;
504 ::CopyRect(&rc, pRect);
505 ::DrawText(hdc, text, text.length(), &rc, DT_CENTER | DT_CALCRECT);
506
507 // now center this rect inside the entire button area
508 const LONG w = rc.right - rc.left;
509 const LONG h = rc.bottom - rc.top;
510 rc.left = (pRect->right - pRect->left)/2 - w/2;
511 rc.right = rc.left+w;
512 rc.top = (pRect->bottom - pRect->top)/2 - h/2;
513 rc.bottom = rc.top+h;
514
515 ::DrawText(hdc, text, text.length(), &rc, DT_CENTER);
516 }
517 else // single line label
518 {
519 // Note: we must have DT_SINGLELINE for DT_VCENTER to work.
520 ::DrawText(hdc, text, text.length(), pRect,
521 DT_SINGLELINE | DT_CENTER | DT_VCENTER);
522 }
cd0b1709
VZ
523
524 SetBkMode(hdc, modeOld);
525 SetTextColor(hdc, colOld);
526}
527
528static void DrawRect(HDC hdc, const RECT& r)
529{
4676948b
JS
530 wxDrawLine(hdc, r.left, r.top, r.right, r.top);
531 wxDrawLine(hdc, r.right, r.top, r.right, r.bottom);
532 wxDrawLine(hdc, r.right, r.bottom, r.left, r.bottom);
533 wxDrawLine(hdc, r.left, r.bottom, r.left, r.top);
cd0b1709
VZ
534}
535
536void wxButton::MakeOwnerDrawn()
537{
538 long style = GetWindowLong(GetHwnd(), GWL_STYLE);
9750fc42 539 if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW )
cd0b1709
VZ
540 {
541 // make it so
542 style |= BS_OWNERDRAW;
543 SetWindowLong(GetHwnd(), GWL_STYLE, style);
544 }
545}
546
547bool wxButton::SetBackgroundColour(const wxColour &colour)
548{
549 if ( !wxControl::SetBackgroundColour(colour) )
550 {
551 // nothing to do
fcf90ee1 552 return false;
cd0b1709
VZ
553 }
554
555 MakeOwnerDrawn();
556
557 Refresh();
558
fcf90ee1 559 return true;
cd0b1709
VZ
560}
561
562bool wxButton::SetForegroundColour(const wxColour &colour)
563{
564 if ( !wxControl::SetForegroundColour(colour) )
565 {
566 // nothing to do
fcf90ee1 567 return false;
cd0b1709
VZ
568 }
569
570 MakeOwnerDrawn();
571
572 Refresh();
573
fcf90ee1 574 return true;
cd0b1709
VZ
575}
576
577/*
578 The button frame looks like this normally:
579
580 WWWWWWWWWWWWWWWWWWB
16162a64
GRG
581 WHHHHHHHHHHHHHHHHGB W = white (HILIGHT)
582 WH GB H = light grey (LIGHT)
583 WH GB G = dark grey (SHADOW)
584 WH GB B = black (DKSHADOW)
585 WH GB
cd0b1709
VZ
586 WGGGGGGGGGGGGGGGGGB
587 BBBBBBBBBBBBBBBBBBB
588
589 When the button is selected, the button becomes like this (the total button
590 size doesn't change):
591
592 BBBBBBBBBBBBBBBBBBB
593 BWWWWWWWWWWWWWWWWBB
16162a64
GRG
594 BWHHHHHHHHHHHHHHGBB
595 BWH GBB
596 BWH GBB
cd0b1709
VZ
597 BWGGGGGGGGGGGGGGGBB
598 BBBBBBBBBBBBBBBBBBB
599 BBBBBBBBBBBBBBBBBBB
600
601 When the button is pushed (while selected) it is like:
602
603 BBBBBBBBBBBBBBBBBBB
604 BGGGGGGGGGGGGGGGGGB
605 BG GB
606 BG GB
607 BG GB
16162a64 608 BG GB
cd0b1709
VZ
609 BGGGGGGGGGGGGGGGGGB
610 BBBBBBBBBBBBBBBBBBB
611*/
612
613static void DrawButtonFrame(HDC hdc, const RECT& rectBtn,
614 bool selected, bool pushed)
615{
616 RECT r;
617 CopyRect(&r, &rectBtn);
618
16162a64
GRG
619 HPEN hpenBlack = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DDKSHADOW)),
620 hpenGrey = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DSHADOW)),
621 hpenLightGr = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DLIGHT)),
622 hpenWhite = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DHILIGHT));
cd0b1709
VZ
623
624 HPEN hpenOld = (HPEN)SelectObject(hdc, hpenBlack);
625
626 r.right--;
627 r.bottom--;
628
629 if ( pushed )
630 {
631 DrawRect(hdc, r);
632
633 (void)SelectObject(hdc, hpenGrey);
fcf90ee1 634 ::InflateRect(&r, -1, -1);
cd0b1709
VZ
635
636 DrawRect(hdc, r);
637 }
638 else // !pushed
639 {
640 if ( selected )
641 {
642 DrawRect(hdc, r);
643
fcf90ee1 644 ::InflateRect(&r, -1, -1);
cd0b1709
VZ
645 }
646
4676948b
JS
647 wxDrawLine(hdc, r.left, r.bottom, r.right, r.bottom);
648 wxDrawLine(hdc, r.right, r.bottom, r.right, r.top - 1);
cd0b1709
VZ
649
650 (void)SelectObject(hdc, hpenWhite);
4676948b
JS
651 wxDrawLine(hdc, r.left, r.bottom - 1, r.left, r.top);
652 wxDrawLine(hdc, r.left, r.top, r.right, r.top);
cd0b1709 653
16162a64 654 (void)SelectObject(hdc, hpenLightGr);
4676948b
JS
655 wxDrawLine(hdc, r.left + 1, r.bottom - 2, r.left + 1, r.top + 1);
656 wxDrawLine(hdc, r.left + 1, r.top + 1, r.right - 1, r.top + 1);
16162a64 657
cd0b1709 658 (void)SelectObject(hdc, hpenGrey);
4676948b
JS
659 wxDrawLine(hdc, r.left + 1, r.bottom - 1, r.right - 1, r.bottom - 1);
660 wxDrawLine(hdc, r.right - 1, r.bottom - 1, r.right - 1, r.top);
cd0b1709
VZ
661 }
662
663 (void)SelectObject(hdc, hpenOld);
664 DeleteObject(hpenWhite);
16162a64 665 DeleteObject(hpenLightGr);
cd0b1709
VZ
666 DeleteObject(hpenGrey);
667 DeleteObject(hpenBlack);
668}
669
670bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis)
671{
672 LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis;
673
674 RECT rectBtn;
675 CopyRect(&rectBtn, &lpDIS->rcItem);
676
677 COLORREF colBg = wxColourToRGB(GetBackgroundColour()),
678 colFg = wxColourToRGB(GetForegroundColour());
679
680 HDC hdc = lpDIS->hDC;
681 UINT state = lpDIS->itemState;
682
683 // first, draw the background
684 HBRUSH hbrushBackground = ::CreateSolidBrush(colBg);
685
686 FillRect(hdc, &rectBtn, hbrushBackground);
687
688 // draw the border for the current state
689 bool selected = (state & ODS_SELECTED) != 0;
690 if ( !selected )
691 {
692 wxPanel *panel = wxDynamicCast(GetParent(), wxPanel);
693 if ( panel )
694 {
695 selected = panel->GetDefaultItem() == this;
696 }
697 }
698 bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0;
699
700 DrawButtonFrame(hdc, rectBtn, selected, pushed);
701
702 // draw the focus rect if needed
703 if ( state & ODS_FOCUS )
704 {
705 RECT rectFocus;
706 CopyRect(&rectFocus, &rectBtn);
707
708 // I don't know where does this constant come from, but this is how
709 // Windows draws them
710 InflateRect(&rectFocus, -4, -4);
711
712 DrawFocusRect(hdc, &rectFocus);
713 }
714
9750fc42
VZ
715 if ( pushed )
716 {
717 // the label is shifted by 1 pixel to create "pushed" effect
718 OffsetRect(&rectBtn, 1, 1);
719 }
720
cd0b1709
VZ
721 DrawButtonText(hdc, &rectBtn, GetLabel(),
722 state & ODS_DISABLED ? GetSysColor(COLOR_GRAYTEXT)
723 : colFg);
724
725 ::DeleteObject(hbrushBackground);
726
fcf90ee1 727 return true;
cd0b1709
VZ
728}
729
730#endif // __WIN32__
1e6feb95
VZ
731
732#endif // wxUSE_BUTTON