| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: src/os2/button.cpp |
| 3 | // Purpose: wxButton |
| 4 | // Author: David Webster |
| 5 | // Modified by: |
| 6 | // Created: 10/13/99 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) David Webster |
| 9 | // Licence: wxWindows licence |
| 10 | ///////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // For compilers that support precompilation, includes "wx.h". |
| 13 | #include "wx/wxprec.h" |
| 14 | |
| 15 | #include "wx/button.h" |
| 16 | |
| 17 | #ifndef WX_PRECOMP |
| 18 | #include "wx/app.h" |
| 19 | #include "wx/brush.h" |
| 20 | #include "wx/panel.h" |
| 21 | #include "wx/bmpbuttn.h" |
| 22 | #include "wx/settings.h" |
| 23 | #include "wx/dcscreen.h" |
| 24 | #include "wx/scrolwin.h" |
| 25 | #include "wx/toplevel.h" |
| 26 | #endif |
| 27 | |
| 28 | #include "wx/stockitem.h" |
| 29 | #include "wx/os2/private.h" |
| 30 | |
| 31 | #define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10) |
| 32 | |
| 33 | // |
| 34 | // Should be at the very least less than winDEFAULT_BUTTON_MARGIN |
| 35 | // |
| 36 | #define FOCUS_MARGIN 3 |
| 37 | |
| 38 | #ifndef BST_CHECKED |
| 39 | #define BST_CHECKED 0x0001 |
| 40 | #endif |
| 41 | |
| 42 | // Button |
| 43 | |
| 44 | bool wxButton::Create( wxWindow* pParent, |
| 45 | wxWindowID vId, |
| 46 | const wxString& rsLbl, |
| 47 | const wxPoint& rPos, |
| 48 | const wxSize& rSize, |
| 49 | long lStyle, |
| 50 | const wxValidator& rValidator, |
| 51 | const wxString& rsName) |
| 52 | { |
| 53 | wxString rsLabel(rsLbl); |
| 54 | if (rsLabel.empty() && wxIsStockID(vId)) |
| 55 | rsLabel = wxGetStockLabel(vId); |
| 56 | |
| 57 | wxString sLabel = ::wxPMTextToLabel(rsLabel); |
| 58 | |
| 59 | SetName(rsName); |
| 60 | #if wxUSE_VALIDATORS |
| 61 | SetValidator(rValidator); |
| 62 | #endif |
| 63 | m_windowStyle = lStyle; |
| 64 | pParent->AddChild((wxButton *)this); |
| 65 | if (vId == -1) |
| 66 | m_windowId = NewControlId(); |
| 67 | else |
| 68 | m_windowId = vId; |
| 69 | lStyle = WS_VISIBLE | WS_TABSTOP | BS_PUSHBUTTON; |
| 70 | |
| 71 | // |
| 72 | // OS/2 PM does not have Right/Left/Top/Bottom styles. |
| 73 | // We will have to define an additional style when we implement notebooks |
| 74 | // for a notebook page button |
| 75 | // |
| 76 | if (m_windowStyle & wxCLIP_SIBLINGS ) |
| 77 | lStyle |= WS_CLIPSIBLINGS; |
| 78 | |
| 79 | m_hWnd = (WXHWND)::WinCreateWindow( GetHwndOf(pParent) // Parent handle |
| 80 | ,WC_BUTTON // A Button class window |
| 81 | ,sLabel.c_str() // Button text |
| 82 | ,lStyle // Button style |
| 83 | ,0, 0, 0, 0 // Location and size |
| 84 | ,GetHwndOf(pParent) // Owner handle |
| 85 | ,HWND_TOP // Top of Z-Order |
| 86 | ,vId // Identifier |
| 87 | ,NULL // No control data |
| 88 | ,NULL // No Presentation parameters |
| 89 | ); |
| 90 | if (m_hWnd == 0) |
| 91 | { |
| 92 | return false; |
| 93 | } |
| 94 | |
| 95 | // |
| 96 | // Subclass again for purposes of dialog editing mode |
| 97 | // |
| 98 | SubclassWin(m_hWnd); |
| 99 | wxFont* pButtonFont = new wxFont( 8 |
| 100 | ,wxSWISS |
| 101 | ,wxNORMAL |
| 102 | ,wxNORMAL |
| 103 | ); |
| 104 | SetFont(*pButtonFont); |
| 105 | SetXComp(0); |
| 106 | SetYComp(0); |
| 107 | SetSize( rPos.x |
| 108 | ,rPos.y |
| 109 | ,rSize.x |
| 110 | ,rSize.y |
| 111 | ); |
| 112 | delete pButtonFont; |
| 113 | return true; |
| 114 | } // end of wxButton::Create |
| 115 | |
| 116 | wxButton::~wxButton() |
| 117 | { |
| 118 | wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); |
| 119 | |
| 120 | if (tlw) |
| 121 | { |
| 122 | if (tlw->GetDefaultItem() == this) |
| 123 | { |
| 124 | // |
| 125 | // Don't leave the panel with invalid default item |
| 126 | // |
| 127 | tlw->SetDefaultItem(NULL); |
| 128 | } |
| 129 | } |
| 130 | } // end of wxButton::~wxButton |
| 131 | |
| 132 | // ---------------------------------------------------------------------------- |
| 133 | // size management including autosizing |
| 134 | // ---------------------------------------------------------------------------- |
| 135 | |
| 136 | wxSize wxButton::DoGetBestSize() const |
| 137 | { |
| 138 | wxString rsLabel = wxGetWindowText(GetHWND()); |
| 139 | int nWidthButton; |
| 140 | int nWidthChar; |
| 141 | int nHeightChar; |
| 142 | wxFont vFont = (wxFont)GetFont(); |
| 143 | |
| 144 | GetTextExtent( rsLabel |
| 145 | ,&nWidthButton |
| 146 | ,NULL |
| 147 | ); |
| 148 | |
| 149 | wxGetCharSize( GetHWND() |
| 150 | ,&nWidthChar |
| 151 | ,&nHeightChar |
| 152 | ,&vFont |
| 153 | ); |
| 154 | |
| 155 | // |
| 156 | // Add a margin - the button is wider than just its label |
| 157 | // |
| 158 | nWidthButton += 3 * nWidthChar; |
| 159 | |
| 160 | // |
| 161 | // The button height is proportional to the height of the font used |
| 162 | // |
| 163 | int nHeightButton = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(nHeightChar); |
| 164 | |
| 165 | // |
| 166 | // Need a little extra to make it look right |
| 167 | // |
| 168 | nHeightButton += (int)(nHeightChar/1.5); |
| 169 | |
| 170 | if (!HasFlag(wxBU_EXACTFIT)) |
| 171 | { |
| 172 | wxSize vSize = GetDefaultSize(); |
| 173 | |
| 174 | if (nWidthButton > vSize.x) |
| 175 | vSize.x = nWidthButton; |
| 176 | if (nHeightButton > vSize.y) |
| 177 | vSize.y = nHeightButton; |
| 178 | return vSize; |
| 179 | } |
| 180 | return wxSize( nWidthButton |
| 181 | ,nHeightButton |
| 182 | ); |
| 183 | } // end of wxButton::DoGetBestSize |
| 184 | |
| 185 | /* static */ |
| 186 | wxSize wxButton::GetDefaultSize() |
| 187 | { |
| 188 | static wxSize vSizeBtn; |
| 189 | |
| 190 | if (vSizeBtn.x == 0) |
| 191 | { |
| 192 | wxScreenDC vDc; |
| 193 | |
| 194 | vDc.SetFont(wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT)); |
| 195 | |
| 196 | // |
| 197 | // The size of a standard button in the dialog units is 50x14, |
| 198 | // translate this to pixels |
| 199 | // NB1: the multipliers come from the Windows convention |
| 200 | // NB2: the extra +1/+2 were needed to get the size be the same as the |
| 201 | // size of the buttons in the standard dialog - I don't know how |
| 202 | // this happens, but on my system this size is 75x23 in pixels and |
| 203 | // 23*8 isn't even divisible by 14... Would be nice to understand |
| 204 | // why these constants are needed though! |
| 205 | vSizeBtn.x = (50 * (vDc.GetCharWidth() + 1))/4; |
| 206 | vSizeBtn.y = ((14 * vDc.GetCharHeight()) + 2)/8; |
| 207 | } |
| 208 | return vSizeBtn; |
| 209 | } // end of wxButton::GetDefaultSize |
| 210 | |
| 211 | void wxButton::Command ( |
| 212 | wxCommandEvent& rEvent |
| 213 | ) |
| 214 | { |
| 215 | ProcessCommand (rEvent); |
| 216 | } // end of wxButton::Command |
| 217 | |
| 218 | // ---------------------------------------------------------------------------- |
| 219 | // helpers |
| 220 | // ---------------------------------------------------------------------------- |
| 221 | |
| 222 | bool wxButton::SendClickEvent() |
| 223 | { |
| 224 | wxCommandEvent vEvent( wxEVT_COMMAND_BUTTON_CLICKED |
| 225 | ,GetId() |
| 226 | ); |
| 227 | |
| 228 | vEvent.SetEventObject(this); |
| 229 | return ProcessCommand(vEvent); |
| 230 | } // end of wxButton::SendClickEvent |
| 231 | |
| 232 | wxWindow *wxButton::SetDefault() |
| 233 | { |
| 234 | // |
| 235 | // Set this one as the default button both for wxWidgets and Windows |
| 236 | // |
| 237 | wxWindow* pWinOldDefault = wxButtonBase::SetDefault(); |
| 238 | |
| 239 | SetDefaultStyle( wxDynamicCast(pWinOldDefault, wxButton), false); |
| 240 | SetDefaultStyle( this, true ); |
| 241 | |
| 242 | return pWinOldDefault; |
| 243 | } // end of wxButton::SetDefault |
| 244 | |
| 245 | void wxButton::SetTmpDefault() |
| 246 | { |
| 247 | wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); |
| 248 | |
| 249 | wxCHECK_RET( tlw, wxT("button without top level window?") ); |
| 250 | |
| 251 | wxWindow* pWinOldDefault = tlw->GetDefaultItem(); |
| 252 | |
| 253 | tlw->SetTmpDefaultItem(this); |
| 254 | SetDefaultStyle( wxDynamicCast(pWinOldDefault, wxButton), false); |
| 255 | SetDefaultStyle( this, true ); |
| 256 | } // end of wxButton::SetTmpDefault |
| 257 | |
| 258 | void wxButton::UnsetTmpDefault() |
| 259 | { |
| 260 | wxTopLevelWindow *tlw = wxDynamicCast(wxGetTopLevelParent(this), wxTopLevelWindow); |
| 261 | |
| 262 | wxCHECK_RET( tlw, wxT("button without top level window?") ); |
| 263 | |
| 264 | tlw->SetTmpDefaultItem(NULL); |
| 265 | |
| 266 | wxWindow* pWinOldDefault = tlw->GetDefaultItem(); |
| 267 | |
| 268 | SetDefaultStyle( this, false ); |
| 269 | SetDefaultStyle( wxDynamicCast(pWinOldDefault, wxButton), true ); |
| 270 | } // end of wxButton::UnsetTmpDefault |
| 271 | |
| 272 | void wxButton::SetDefaultStyle( |
| 273 | wxButton* pBtn |
| 274 | , bool bOn |
| 275 | ) |
| 276 | { |
| 277 | long lStyle; |
| 278 | // |
| 279 | // We may be called with NULL pointer -- simpler to do the check here than |
| 280 | // in the caller which does wxDynamicCast() |
| 281 | // |
| 282 | if (!pBtn) |
| 283 | return; |
| 284 | |
| 285 | // |
| 286 | // First, let DefDlgProc() know about the new default button |
| 287 | // |
| 288 | if (bOn) |
| 289 | { |
| 290 | if (!wxTheApp->IsActive()) |
| 291 | return; |
| 292 | |
| 293 | // |
| 294 | // In OS/2 the dialog/panel doesn't really know it has a default |
| 295 | // button, the default button simply has that style. We'll just |
| 296 | // simulate by setting focus to it |
| 297 | // |
| 298 | pBtn->SetFocus(); |
| 299 | } |
| 300 | lStyle = ::WinQueryWindowULong(GetHwndOf(pBtn), QWL_STYLE); |
| 301 | if (!(lStyle & BS_DEFAULT) == bOn) |
| 302 | { |
| 303 | if ((lStyle & BS_USERBUTTON) != BS_USERBUTTON) |
| 304 | { |
| 305 | if (bOn) |
| 306 | lStyle |= BS_DEFAULT; |
| 307 | else |
| 308 | lStyle &= ~BS_DEFAULT; |
| 309 | ::WinSetWindowULong(GetHwndOf(pBtn), QWL_STYLE, lStyle); |
| 310 | } |
| 311 | else |
| 312 | { |
| 313 | // |
| 314 | // Redraw the button - it will notice itself that it's not the |
| 315 | // default one any longer |
| 316 | // |
| 317 | pBtn->Refresh(); |
| 318 | } |
| 319 | } |
| 320 | } // end of wxButton::UpdateDefaultStyle |
| 321 | |
| 322 | // ---------------------------------------------------------------------------- |
| 323 | // event/message handlers |
| 324 | // ---------------------------------------------------------------------------- |
| 325 | |
| 326 | bool wxButton::OS2Command(WXUINT uParam, WXWORD WXUNUSED(wId)) |
| 327 | { |
| 328 | bool bProcessed = false; |
| 329 | |
| 330 | switch (uParam) |
| 331 | { |
| 332 | case BN_CLICKED: // normal buttons send this |
| 333 | case BN_DBLCLICKED: // owner-drawn ones also send this |
| 334 | bProcessed = SendClickEvent(); |
| 335 | break; |
| 336 | } |
| 337 | |
| 338 | return bProcessed; |
| 339 | } // end of wxButton::OS2Command |
| 340 | |
| 341 | WXHBRUSH wxButton::OnCtlColor( WXHDC WXUNUSED(pDC), |
| 342 | WXHWND WXUNUSED(pWnd), |
| 343 | WXUINT WXUNUSED(nCtlColor), |
| 344 | WXUINT WXUNUSED(uMessage), |
| 345 | WXWPARAM WXUNUSED(wParam), |
| 346 | WXLPARAM WXUNUSED(lParam) ) |
| 347 | { |
| 348 | wxBrush* pBackgroundBrush = wxTheBrushList->FindOrCreateBrush( GetBackgroundColour() |
| 349 | ,wxSOLID |
| 350 | ); |
| 351 | |
| 352 | return (WXHBRUSH)pBackgroundBrush->GetResourceHandle(); |
| 353 | } // end of wxButton::OnCtlColor |
| 354 | |
| 355 | void wxButton::MakeOwnerDrawn() |
| 356 | { |
| 357 | long lStyle = 0L; |
| 358 | |
| 359 | lStyle = ::WinQueryWindowULong(GetHwnd(), QWL_STYLE); |
| 360 | if ((lStyle & BS_USERBUTTON) != BS_USERBUTTON) |
| 361 | { |
| 362 | // |
| 363 | // Make it so |
| 364 | // |
| 365 | lStyle |= BS_USERBUTTON; |
| 366 | ::WinSetWindowULong(GetHwnd(), QWL_STYLE, lStyle); |
| 367 | } |
| 368 | } // end of wxButton::MakeOwnerDrawn |
| 369 | |
| 370 | WXDWORD wxButton::OS2GetStyle( |
| 371 | long lStyle |
| 372 | , WXDWORD* pdwExstyle |
| 373 | ) const |
| 374 | { |
| 375 | // |
| 376 | // Buttons never have an external border, they draw their own one |
| 377 | // |
| 378 | WXDWORD dwStyle = wxControl::OS2GetStyle( (lStyle & ~wxBORDER_MASK) | wxBORDER_NONE |
| 379 | ,pdwExstyle |
| 380 | ); |
| 381 | |
| 382 | // |
| 383 | // We must use WS_CLIPSIBLINGS with the buttons or they would draw over |
| 384 | // each other in any resizable dialog which has more than one button in |
| 385 | // the bottom |
| 386 | // |
| 387 | dwStyle |= WS_CLIPSIBLINGS; |
| 388 | return dwStyle; |
| 389 | } // end of wxButton::OS2GetStyle |
| 390 | |
| 391 | MRESULT wxButton::WindowProc( WXUINT uMsg, |
| 392 | WXWPARAM wParam, |
| 393 | WXLPARAM lParam ) |
| 394 | { |
| 395 | // |
| 396 | // When we receive focus, we want to temporary become the default button in |
| 397 | // our parent panel so that pressing "Enter" would activate us -- and when |
| 398 | // losing it we should restore the previous default button as well |
| 399 | // |
| 400 | if (uMsg == WM_SETFOCUS) |
| 401 | { |
| 402 | if (SHORT1FROMMP(lParam) == TRUE) |
| 403 | SetTmpDefault(); |
| 404 | else |
| 405 | UnsetTmpDefault(); |
| 406 | |
| 407 | // |
| 408 | // Let the default processign take place too |
| 409 | // |
| 410 | } |
| 411 | |
| 412 | else if (uMsg == WM_BUTTON1DBLCLK) |
| 413 | { |
| 414 | // |
| 415 | // Emulate a click event to force an owner-drawn button to change its |
| 416 | // appearance - without this, it won't do it |
| 417 | // |
| 418 | (void)wxControl::OS2WindowProc( WM_BUTTON1DOWN |
| 419 | ,wParam |
| 420 | ,lParam |
| 421 | ); |
| 422 | |
| 423 | // |
| 424 | // And conitnue with processing the message normally as well |
| 425 | // |
| 426 | } |
| 427 | |
| 428 | // |
| 429 | // Let the base class do all real processing |
| 430 | // |
| 431 | return (wxControl::OS2WindowProc( uMsg |
| 432 | ,wParam |
| 433 | ,lParam |
| 434 | )); |
| 435 | } // end of wxWindowProc |