| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: msw/button.cpp |
| 3 | // Purpose: wxButton |
| 4 | // Author: Julian Smart |
| 5 | // Modified by: |
| 6 | // Created: 04/01/98 |
| 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 | #ifdef __GNUG__ |
| 21 | #pragma implementation "button.h" |
| 22 | #endif |
| 23 | |
| 24 | // For compilers that support precompilation, includes "wx.h". |
| 25 | #include "wx/wxprec.h" |
| 26 | |
| 27 | #ifdef __BORLANDC__ |
| 28 | #pragma hdrstop |
| 29 | #endif |
| 30 | |
| 31 | #if wxUSE_BUTTON |
| 32 | |
| 33 | #ifndef WX_PRECOMP |
| 34 | #include "wx/app.h" |
| 35 | #include "wx/button.h" |
| 36 | #include "wx/brush.h" |
| 37 | #include "wx/panel.h" |
| 38 | #include "wx/bmpbuttn.h" |
| 39 | #include "wx/settings.h" |
| 40 | #include "wx/dcscreen.h" |
| 41 | #endif |
| 42 | |
| 43 | #include "wx/msw/private.h" |
| 44 | |
| 45 | // ---------------------------------------------------------------------------- |
| 46 | // macros |
| 47 | // ---------------------------------------------------------------------------- |
| 48 | |
| 49 | IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl) |
| 50 | |
| 51 | // this macro tries to adjust the default button height to a reasonable value |
| 52 | // using the char height as the base |
| 53 | #define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10) |
| 54 | |
| 55 | // ============================================================================ |
| 56 | // implementation |
| 57 | // ============================================================================ |
| 58 | |
| 59 | // ---------------------------------------------------------------------------- |
| 60 | // creation/destruction |
| 61 | // ---------------------------------------------------------------------------- |
| 62 | |
| 63 | bool wxButton::Create(wxWindow *parent, |
| 64 | wxWindowID id, |
| 65 | const wxString& label, |
| 66 | const wxPoint& pos, |
| 67 | const wxSize& size, |
| 68 | long style, |
| 69 | const wxValidator& validator, |
| 70 | const wxString& name) |
| 71 | { |
| 72 | if ( !CreateControl(parent, id, pos, size, style, validator, name) ) |
| 73 | return FALSE; |
| 74 | |
| 75 | WXDWORD exstyle; |
| 76 | WXDWORD msStyle = MSWGetStyle(style, &exstyle); |
| 77 | |
| 78 | #ifdef __WIN32__ |
| 79 | // if the label contains several lines we must explicitly tell the button |
| 80 | // about it or it wouldn't draw it correctly ("\n"s would just appear as |
| 81 | // black boxes) |
| 82 | // |
| 83 | // NB: we do it here and not in MSWGetStyle() because we need the label |
| 84 | // value and m_label is not set yet when MSWGetStyle() is called; |
| 85 | // besides changing BS_MULTILINE during run-time is pointless anyhow |
| 86 | if ( label.find(_T('\n')) != wxString::npos ) |
| 87 | { |
| 88 | msStyle |= BS_MULTILINE; |
| 89 | } |
| 90 | #endif // __WIN32__ |
| 91 | |
| 92 | return MSWCreateControl(_T("BUTTON"), msStyle, pos, size, label, exstyle); |
| 93 | } |
| 94 | |
| 95 | wxButton::~wxButton() |
| 96 | { |
| 97 | } |
| 98 | |
| 99 | // ---------------------------------------------------------------------------- |
| 100 | // flags |
| 101 | // ---------------------------------------------------------------------------- |
| 102 | |
| 103 | WXDWORD wxButton::MSWGetStyle(long style, WXDWORD *exstyle) const |
| 104 | { |
| 105 | // buttons never have an external border, they draw their own one |
| 106 | WXDWORD msStyle = wxControl::MSWGetStyle |
| 107 | ( |
| 108 | (style & ~wxBORDER_MASK) | wxBORDER_NONE, exstyle |
| 109 | ); |
| 110 | |
| 111 | // we must use WS_CLIPSIBLINGS with the buttons or they would draw over |
| 112 | // each other in any resizeable dialog which has more than one button in |
| 113 | // the bottom |
| 114 | msStyle |= WS_CLIPSIBLINGS; |
| 115 | |
| 116 | #ifdef __WIN32__ |
| 117 | // don't use "else if" here: weird as it is, but you may combine wxBU_LEFT |
| 118 | // and wxBU_RIGHT to get BS_CENTER! |
| 119 | if ( style & wxBU_LEFT ) |
| 120 | msStyle |= BS_LEFT; |
| 121 | if ( style & wxBU_RIGHT ) |
| 122 | msStyle |= BS_RIGHT; |
| 123 | if ( style & wxBU_TOP ) |
| 124 | msStyle |= BS_TOP; |
| 125 | if ( style & wxBU_BOTTOM ) |
| 126 | msStyle |= BS_BOTTOM; |
| 127 | #endif // __WIN32__ |
| 128 | |
| 129 | return msStyle; |
| 130 | } |
| 131 | |
| 132 | // ---------------------------------------------------------------------------- |
| 133 | // size management including autosizing |
| 134 | // ---------------------------------------------------------------------------- |
| 135 | |
| 136 | wxSize wxButton::DoGetBestSize() const |
| 137 | { |
| 138 | int wBtn; |
| 139 | GetTextExtent(wxGetWindowText(GetHWND()), &wBtn, NULL); |
| 140 | |
| 141 | int wChar, hChar; |
| 142 | wxGetCharSize(GetHWND(), &wChar, &hChar, &GetFont()); |
| 143 | |
| 144 | // add a margin -- the button is wider than just its label |
| 145 | wBtn += 3*wChar; |
| 146 | |
| 147 | // the button height is proportional to the height of the font used |
| 148 | int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar); |
| 149 | |
| 150 | // all buttons have at least the standard size unless the user explicitly |
| 151 | // wants them to be of smaller size and used wxBU_EXACTFIT style when |
| 152 | // creating the button |
| 153 | if ( !HasFlag(wxBU_EXACTFIT) ) |
| 154 | { |
| 155 | wxSize sz = GetDefaultSize(); |
| 156 | if (wBtn > sz.x) |
| 157 | sz.x = wBtn; |
| 158 | if (hBtn > sz.y) |
| 159 | sz.y = hBtn; |
| 160 | |
| 161 | return sz; |
| 162 | } |
| 163 | |
| 164 | return wxSize(wBtn, hBtn); |
| 165 | } |
| 166 | |
| 167 | /* static */ |
| 168 | wxSize wxButtonBase::GetDefaultSize() |
| 169 | { |
| 170 | static wxSize s_sizeBtn; |
| 171 | |
| 172 | if ( s_sizeBtn.x == 0 ) |
| 173 | { |
| 174 | wxScreenDC dc; |
| 175 | dc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); |
| 176 | |
| 177 | // the size of a standard button in the dialog units is 50x14, |
| 178 | // translate this to pixels |
| 179 | // NB1: the multipliers come from the Windows convention |
| 180 | // NB2: the extra +1/+2 were needed to get the size be the same as the |
| 181 | // size of the buttons in the standard dialog - I don't know how |
| 182 | // this happens, but on my system this size is 75x23 in pixels and |
| 183 | // 23*8 isn't even divisible by 14... Would be nice to understand |
| 184 | // why these constants are needed though! |
| 185 | s_sizeBtn.x = (50 * (dc.GetCharWidth() + 1))/4; |
| 186 | s_sizeBtn.y = ((14 * dc.GetCharHeight()) + 2)/8; |
| 187 | } |
| 188 | |
| 189 | return s_sizeBtn; |
| 190 | } |
| 191 | |
| 192 | // ---------------------------------------------------------------------------- |
| 193 | // default button handling |
| 194 | // ---------------------------------------------------------------------------- |
| 195 | |
| 196 | /* |
| 197 | "Everything you ever wanted to know about the default buttons" or "Why do we |
| 198 | have to do all this?" |
| 199 | |
| 200 | In MSW the default button should be activated when the user presses Enter |
| 201 | and the current control doesn't process Enter itself somehow. This is |
| 202 | handled by ::DefWindowProc() (or maybe ::DefDialogProc()) using DM_SETDEFID |
| 203 | Another aspect of "defaultness" is that the default button has different |
| 204 | appearance: this is due to BS_DEFPUSHBUTTON style which is completely |
| 205 | separate from DM_SETDEFID stuff (!). Also note that BS_DEFPUSHBUTTON should |
| 206 | be unset if our parent window is not active so it should be unset whenever |
| 207 | we lose activation and set back when we regain it. |
| 208 | |
| 209 | Final complication is that when a button is active, it should be the default |
| 210 | one, i.e. pressing Enter on a button always activates it and not another |
| 211 | one. |
| 212 | |
| 213 | We handle this by maintaining a permanent and a temporary default items in |
| 214 | wxControlContainer (both may be NULL). When a button becomes the current |
| 215 | control (i.e. gets focus) it sets itself as the temporary default which |
| 216 | ensures that it has the right appearance and that Enter will be redirected |
| 217 | to it. When the button loses focus, it unsets the temporary default and so |
| 218 | the default item will be the permanent default -- that is the default button |
| 219 | if any had been set or none otherwise, which is just what we want. |
| 220 | |
| 221 | NB: all this is quite complicated by now and the worst is that normally |
| 222 | it shouldn't be necessary at all as for the normal Windows programs |
| 223 | DefWindowProc() and IsDialogMessage() take care of all this |
| 224 | automatically -- however in wxWindows programs this doesn't work for |
| 225 | nested hierarchies (i.e. a notebook inside a notebook) for unknown |
| 226 | reason and so we have to reproduce all this code ourselves. It would be |
| 227 | very nice if we could avoid doing it. |
| 228 | */ |
| 229 | |
| 230 | // set this button as the (permanently) default one in its panel |
| 231 | void wxButton::SetDefault() |
| 232 | { |
| 233 | wxWindow *parent = GetParent(); |
| 234 | |
| 235 | wxCHECK_RET( parent, _T("button without parent?") ); |
| 236 | |
| 237 | // set this one as the default button both for wxWindows ... |
| 238 | wxWindow *winOldDefault = parent->SetDefaultItem(this); |
| 239 | |
| 240 | // ... and Windows |
| 241 | SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), FALSE); |
| 242 | SetDefaultStyle(this, TRUE); |
| 243 | } |
| 244 | |
| 245 | // set this button as being currently default |
| 246 | void wxButton::SetTmpDefault() |
| 247 | { |
| 248 | wxWindow *parent = GetParent(); |
| 249 | |
| 250 | wxCHECK_RET( parent, _T("button without parent?") ); |
| 251 | |
| 252 | wxWindow *winOldDefault = parent->GetDefaultItem(); |
| 253 | parent->SetTmpDefaultItem(this); |
| 254 | |
| 255 | SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), FALSE); |
| 256 | SetDefaultStyle(this, TRUE); |
| 257 | } |
| 258 | |
| 259 | // unset this button as currently default, it may still stay permanent default |
| 260 | void wxButton::UnsetTmpDefault() |
| 261 | { |
| 262 | wxWindow *parent = GetParent(); |
| 263 | |
| 264 | wxCHECK_RET( parent, _T("button without parent?") ); |
| 265 | |
| 266 | parent->SetTmpDefaultItem(NULL); |
| 267 | |
| 268 | wxWindow *winOldDefault = parent->GetDefaultItem(); |
| 269 | |
| 270 | SetDefaultStyle(this, FALSE); |
| 271 | SetDefaultStyle(wxDynamicCast(winOldDefault, wxButton), TRUE); |
| 272 | } |
| 273 | |
| 274 | /* static */ |
| 275 | void |
| 276 | wxButton::SetDefaultStyle(wxButton *btn, bool on) |
| 277 | { |
| 278 | // we may be called with NULL pointer -- simpler to do the check here than |
| 279 | // in the caller which does wxDynamicCast() |
| 280 | if ( !btn ) |
| 281 | return; |
| 282 | |
| 283 | // first, let DefDlgProc() know about the new default button |
| 284 | if ( on ) |
| 285 | { |
| 286 | // we shouldn't set BS_DEFPUSHBUTTON for any button if we don't have |
| 287 | // focus at all any more |
| 288 | if ( !wxTheApp->IsActive() ) |
| 289 | return; |
| 290 | |
| 291 | // look for a panel-like window |
| 292 | wxWindow *win = btn->GetParent(); |
| 293 | while ( win && !win->HasFlag(wxTAB_TRAVERSAL) ) |
| 294 | win = win->GetParent(); |
| 295 | |
| 296 | if ( win ) |
| 297 | { |
| 298 | ::SendMessage(GetHwndOf(win), DM_SETDEFID, btn->GetId(), 0L); |
| 299 | |
| 300 | // sending DM_SETDEFID also changes the button style to |
| 301 | // BS_DEFPUSHBUTTON so there is nothing more to do |
| 302 | } |
| 303 | } |
| 304 | |
| 305 | // then also change the style as needed |
| 306 | long style = ::GetWindowLong(GetHwndOf(btn), GWL_STYLE); |
| 307 | if ( !(style & BS_DEFPUSHBUTTON) == on ) |
| 308 | { |
| 309 | // don't do it with the owner drawn buttons because it will |
| 310 | // reset BS_OWNERDRAW style bit too (as BS_OWNERDRAW & |
| 311 | // BS_DEFPUSHBUTTON != 0)! |
| 312 | if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW ) |
| 313 | { |
| 314 | ::SendMessage(GetHwndOf(btn), BM_SETSTYLE, |
| 315 | on ? style | BS_DEFPUSHBUTTON |
| 316 | : style & ~BS_DEFPUSHBUTTON, |
| 317 | 1L /* redraw */); |
| 318 | } |
| 319 | else // owner drawn |
| 320 | { |
| 321 | // redraw the button - it will notice itself that it's |
| 322 | // [not] the default one [any longer] |
| 323 | btn->Refresh(); |
| 324 | } |
| 325 | } |
| 326 | //else: already has correct style |
| 327 | } |
| 328 | |
| 329 | // ---------------------------------------------------------------------------- |
| 330 | // helpers |
| 331 | // ---------------------------------------------------------------------------- |
| 332 | |
| 333 | bool wxButton::SendClickEvent() |
| 334 | { |
| 335 | wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, GetId()); |
| 336 | event.SetEventObject(this); |
| 337 | |
| 338 | return ProcessCommand(event); |
| 339 | } |
| 340 | |
| 341 | void wxButton::Command(wxCommandEvent & event) |
| 342 | { |
| 343 | ProcessCommand(event); |
| 344 | } |
| 345 | |
| 346 | // ---------------------------------------------------------------------------- |
| 347 | // event/message handlers |
| 348 | // ---------------------------------------------------------------------------- |
| 349 | |
| 350 | bool wxButton::MSWCommand(WXUINT param, WXWORD WXUNUSED(id)) |
| 351 | { |
| 352 | bool processed = FALSE; |
| 353 | switch ( param ) |
| 354 | { |
| 355 | // NOTE: Apparently older versions (NT 4?) of the common controls send |
| 356 | // BN_DOUBLECLICKED but not a second BN_CLICKED for owner-drawn |
| 357 | // buttons, so in order to send two EVET_BUTTON events we should |
| 358 | // catch both types. Currently (Feb 2003) up-to-date versions of |
| 359 | // win98, win2k and winXP all send two BN_CLICKED messages for |
| 360 | // all button types, so we don't catch BN_DOUBLECLICKED anymore |
| 361 | // in order to not get 3 EVT_BUTTON events. If this is a problem |
| 362 | // then we need to figure out which version of the comctl32 changed |
| 363 | // this behaviour and test for it. |
| 364 | |
| 365 | case 1: // message came from an accelerator |
| 366 | case BN_CLICKED: // normal buttons send this |
| 367 | processed = SendClickEvent(); |
| 368 | break; |
| 369 | } |
| 370 | |
| 371 | return processed; |
| 372 | } |
| 373 | |
| 374 | long wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) |
| 375 | { |
| 376 | // when we receive focus, we want to temporary become the default button in |
| 377 | // our parent panel so that pressing "Enter" would activate us -- and when |
| 378 | // losing it we should restore the previous default button as well |
| 379 | if ( nMsg == WM_SETFOCUS ) |
| 380 | { |
| 381 | SetTmpDefault(); |
| 382 | |
| 383 | // let the default processing take place too |
| 384 | } |
| 385 | else if ( nMsg == WM_KILLFOCUS ) |
| 386 | { |
| 387 | UnsetTmpDefault(); |
| 388 | } |
| 389 | else if ( nMsg == WM_LBUTTONDBLCLK ) |
| 390 | { |
| 391 | // emulate a click event to force an owner-drawn button to change its |
| 392 | // appearance - without this, it won't do it |
| 393 | (void)wxControl::MSWWindowProc(WM_LBUTTONDOWN, wParam, lParam); |
| 394 | |
| 395 | // and continue with processing the message normally as well |
| 396 | } |
| 397 | |
| 398 | // let the base class do all real processing |
| 399 | return wxControl::MSWWindowProc(nMsg, wParam, lParam); |
| 400 | } |
| 401 | |
| 402 | // ---------------------------------------------------------------------------- |
| 403 | // owner-drawn buttons support |
| 404 | // ---------------------------------------------------------------------------- |
| 405 | |
| 406 | #ifdef __WIN32__ |
| 407 | |
| 408 | // drawing helpers |
| 409 | |
| 410 | static void DrawButtonText(HDC hdc, |
| 411 | RECT *pRect, |
| 412 | const wxString& text, |
| 413 | COLORREF col) |
| 414 | { |
| 415 | COLORREF colOld = SetTextColor(hdc, col); |
| 416 | int modeOld = SetBkMode(hdc, TRANSPARENT); |
| 417 | |
| 418 | ::DrawText(hdc, text, text.length(), pRect, DT_CENTER | DT_VCENTER); |
| 419 | |
| 420 | SetBkMode(hdc, modeOld); |
| 421 | SetTextColor(hdc, colOld); |
| 422 | } |
| 423 | |
| 424 | static void DrawRect(HDC hdc, const RECT& r) |
| 425 | { |
| 426 | MoveToEx(hdc, r.left, r.top, NULL); |
| 427 | LineTo(hdc, r.right, r.top); |
| 428 | LineTo(hdc, r.right, r.bottom); |
| 429 | LineTo(hdc, r.left, r.bottom); |
| 430 | LineTo(hdc, r.left, r.top); |
| 431 | } |
| 432 | |
| 433 | void wxButton::MakeOwnerDrawn() |
| 434 | { |
| 435 | long style = GetWindowLong(GetHwnd(), GWL_STYLE); |
| 436 | if ( (style & BS_OWNERDRAW) != BS_OWNERDRAW ) |
| 437 | { |
| 438 | // make it so |
| 439 | style |= BS_OWNERDRAW; |
| 440 | SetWindowLong(GetHwnd(), GWL_STYLE, style); |
| 441 | } |
| 442 | } |
| 443 | |
| 444 | bool wxButton::SetBackgroundColour(const wxColour &colour) |
| 445 | { |
| 446 | if ( !wxControl::SetBackgroundColour(colour) ) |
| 447 | { |
| 448 | // nothing to do |
| 449 | return FALSE; |
| 450 | } |
| 451 | |
| 452 | MakeOwnerDrawn(); |
| 453 | |
| 454 | Refresh(); |
| 455 | |
| 456 | return TRUE; |
| 457 | } |
| 458 | |
| 459 | bool wxButton::SetForegroundColour(const wxColour &colour) |
| 460 | { |
| 461 | if ( !wxControl::SetForegroundColour(colour) ) |
| 462 | { |
| 463 | // nothing to do |
| 464 | return FALSE; |
| 465 | } |
| 466 | |
| 467 | MakeOwnerDrawn(); |
| 468 | |
| 469 | Refresh(); |
| 470 | |
| 471 | return TRUE; |
| 472 | } |
| 473 | |
| 474 | /* |
| 475 | The button frame looks like this normally: |
| 476 | |
| 477 | WWWWWWWWWWWWWWWWWWB |
| 478 | WHHHHHHHHHHHHHHHHGB W = white (HILIGHT) |
| 479 | WH GB H = light grey (LIGHT) |
| 480 | WH GB G = dark grey (SHADOW) |
| 481 | WH GB B = black (DKSHADOW) |
| 482 | WH GB |
| 483 | WGGGGGGGGGGGGGGGGGB |
| 484 | BBBBBBBBBBBBBBBBBBB |
| 485 | |
| 486 | When the button is selected, the button becomes like this (the total button |
| 487 | size doesn't change): |
| 488 | |
| 489 | BBBBBBBBBBBBBBBBBBB |
| 490 | BWWWWWWWWWWWWWWWWBB |
| 491 | BWHHHHHHHHHHHHHHGBB |
| 492 | BWH GBB |
| 493 | BWH GBB |
| 494 | BWGGGGGGGGGGGGGGGBB |
| 495 | BBBBBBBBBBBBBBBBBBB |
| 496 | BBBBBBBBBBBBBBBBBBB |
| 497 | |
| 498 | When the button is pushed (while selected) it is like: |
| 499 | |
| 500 | BBBBBBBBBBBBBBBBBBB |
| 501 | BGGGGGGGGGGGGGGGGGB |
| 502 | BG GB |
| 503 | BG GB |
| 504 | BG GB |
| 505 | BG GB |
| 506 | BGGGGGGGGGGGGGGGGGB |
| 507 | BBBBBBBBBBBBBBBBBBB |
| 508 | */ |
| 509 | |
| 510 | static void DrawButtonFrame(HDC hdc, const RECT& rectBtn, |
| 511 | bool selected, bool pushed) |
| 512 | { |
| 513 | RECT r; |
| 514 | CopyRect(&r, &rectBtn); |
| 515 | |
| 516 | HPEN hpenBlack = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DDKSHADOW)), |
| 517 | hpenGrey = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DSHADOW)), |
| 518 | hpenLightGr = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DLIGHT)), |
| 519 | hpenWhite = CreatePen(PS_SOLID, 1, GetSysColor(COLOR_3DHILIGHT)); |
| 520 | |
| 521 | HPEN hpenOld = (HPEN)SelectObject(hdc, hpenBlack); |
| 522 | |
| 523 | r.right--; |
| 524 | r.bottom--; |
| 525 | |
| 526 | if ( pushed ) |
| 527 | { |
| 528 | DrawRect(hdc, r); |
| 529 | |
| 530 | (void)SelectObject(hdc, hpenGrey); |
| 531 | InflateRect(&r, -1, -1); |
| 532 | |
| 533 | DrawRect(hdc, r); |
| 534 | } |
| 535 | else // !pushed |
| 536 | { |
| 537 | if ( selected ) |
| 538 | { |
| 539 | DrawRect(hdc, r); |
| 540 | |
| 541 | InflateRect(&r, -1, -1); |
| 542 | } |
| 543 | |
| 544 | MoveToEx(hdc, r.left, r.bottom, NULL); |
| 545 | LineTo(hdc, r.right, r.bottom); |
| 546 | LineTo(hdc, r.right, r.top - 1); |
| 547 | |
| 548 | (void)SelectObject(hdc, hpenWhite); |
| 549 | MoveToEx(hdc, r.left, r.bottom - 1, NULL); |
| 550 | LineTo(hdc, r.left, r.top); |
| 551 | LineTo(hdc, r.right, r.top); |
| 552 | |
| 553 | (void)SelectObject(hdc, hpenLightGr); |
| 554 | MoveToEx(hdc, r.left + 1, r.bottom - 2, NULL); |
| 555 | LineTo(hdc, r.left + 1, r.top + 1); |
| 556 | LineTo(hdc, r.right - 1, r.top + 1); |
| 557 | |
| 558 | (void)SelectObject(hdc, hpenGrey); |
| 559 | MoveToEx(hdc, r.left + 1, r.bottom - 1, NULL); |
| 560 | LineTo(hdc, r.right - 1, r.bottom - 1); |
| 561 | LineTo(hdc, r.right - 1, r.top); |
| 562 | } |
| 563 | |
| 564 | (void)SelectObject(hdc, hpenOld); |
| 565 | DeleteObject(hpenWhite); |
| 566 | DeleteObject(hpenLightGr); |
| 567 | DeleteObject(hpenGrey); |
| 568 | DeleteObject(hpenBlack); |
| 569 | } |
| 570 | |
| 571 | bool wxButton::MSWOnDraw(WXDRAWITEMSTRUCT *wxdis) |
| 572 | { |
| 573 | LPDRAWITEMSTRUCT lpDIS = (LPDRAWITEMSTRUCT)wxdis; |
| 574 | |
| 575 | RECT rectBtn; |
| 576 | CopyRect(&rectBtn, &lpDIS->rcItem); |
| 577 | |
| 578 | COLORREF colBg = wxColourToRGB(GetBackgroundColour()), |
| 579 | colFg = wxColourToRGB(GetForegroundColour()); |
| 580 | |
| 581 | HDC hdc = lpDIS->hDC; |
| 582 | UINT state = lpDIS->itemState; |
| 583 | |
| 584 | // first, draw the background |
| 585 | HBRUSH hbrushBackground = ::CreateSolidBrush(colBg); |
| 586 | |
| 587 | FillRect(hdc, &rectBtn, hbrushBackground); |
| 588 | |
| 589 | // draw the border for the current state |
| 590 | bool selected = (state & ODS_SELECTED) != 0; |
| 591 | if ( !selected ) |
| 592 | { |
| 593 | wxPanel *panel = wxDynamicCast(GetParent(), wxPanel); |
| 594 | if ( panel ) |
| 595 | { |
| 596 | selected = panel->GetDefaultItem() == this; |
| 597 | } |
| 598 | } |
| 599 | bool pushed = (SendMessage(GetHwnd(), BM_GETSTATE, 0, 0) & BST_PUSHED) != 0; |
| 600 | |
| 601 | DrawButtonFrame(hdc, rectBtn, selected, pushed); |
| 602 | |
| 603 | // draw the focus rect if needed |
| 604 | if ( state & ODS_FOCUS ) |
| 605 | { |
| 606 | RECT rectFocus; |
| 607 | CopyRect(&rectFocus, &rectBtn); |
| 608 | |
| 609 | // I don't know where does this constant come from, but this is how |
| 610 | // Windows draws them |
| 611 | InflateRect(&rectFocus, -4, -4); |
| 612 | |
| 613 | DrawFocusRect(hdc, &rectFocus); |
| 614 | } |
| 615 | |
| 616 | if ( pushed ) |
| 617 | { |
| 618 | // the label is shifted by 1 pixel to create "pushed" effect |
| 619 | OffsetRect(&rectBtn, 1, 1); |
| 620 | } |
| 621 | |
| 622 | DrawButtonText(hdc, &rectBtn, GetLabel(), |
| 623 | state & ODS_DISABLED ? GetSysColor(COLOR_GRAYTEXT) |
| 624 | : colFg); |
| 625 | |
| 626 | ::DeleteObject(hbrushBackground); |
| 627 | |
| 628 | return TRUE; |
| 629 | } |
| 630 | |
| 631 | #endif // __WIN32__ |
| 632 | |
| 633 | #endif // wxUSE_BUTTON |
| 634 | |