| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: univ/window.cpp |
| 3 | // Purpose: implementation of extra wxWindow methods for wxUniv port |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 06.08.00 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com) |
| 9 | // Licence: wxWindows license |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // =========================================================================== |
| 13 | // declarations |
| 14 | // =========================================================================== |
| 15 | |
| 16 | // --------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // --------------------------------------------------------------------------- |
| 19 | |
| 20 | #ifdef __GNUG__ |
| 21 | #pragma implementation "univwindow.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 | #ifndef WX_PRECOMP |
| 32 | #include "wx/app.h" |
| 33 | #include "wx/window.h" |
| 34 | #include "wx/dcclient.h" |
| 35 | #include "wx/dcmemory.h" |
| 36 | #include "wx/event.h" |
| 37 | #include "wx/scrolbar.h" |
| 38 | #include "wx/menu.h" |
| 39 | #include "wx/frame.h" |
| 40 | #endif // WX_PRECOMP |
| 41 | |
| 42 | #include "wx/univ/colschem.h" |
| 43 | #include "wx/univ/renderer.h" |
| 44 | #include "wx/univ/theme.h" |
| 45 | |
| 46 | #if wxUSE_CARET |
| 47 | #include "wx/caret.h" |
| 48 | #endif // wxUSE_CARET |
| 49 | |
| 50 | // turn Refresh() debugging on/off |
| 51 | #define WXDEBUG_REFRESH |
| 52 | |
| 53 | #ifndef __WXDEBUG__ |
| 54 | #undef WXDEBUG_REFRESH |
| 55 | #endif |
| 56 | |
| 57 | // ============================================================================ |
| 58 | // implementation |
| 59 | // ============================================================================ |
| 60 | |
| 61 | // ---------------------------------------------------------------------------- |
| 62 | // event tables |
| 63 | // ---------------------------------------------------------------------------- |
| 64 | |
| 65 | // we can't use wxWindowNative here as it won't be expanded inside the macro |
| 66 | #if defined(__WXMSW__) |
| 67 | IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowMSW) |
| 68 | #elif defined(__WXGTK__) |
| 69 | IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowGTK) |
| 70 | #elif defined(__WXMGL__) |
| 71 | IMPLEMENT_DYNAMIC_CLASS(wxWindow, wxWindowMGL) |
| 72 | #endif |
| 73 | |
| 74 | BEGIN_EVENT_TABLE(wxWindow, wxWindowNative) |
| 75 | EVT_SIZE(wxWindow::OnSize) |
| 76 | |
| 77 | #if wxUSE_ACCEL || wxUSE_MENUS |
| 78 | EVT_KEY_DOWN(wxWindow::OnKeyDown) |
| 79 | #endif // wxUSE_ACCEL |
| 80 | |
| 81 | #if wxUSE_MENUS |
| 82 | EVT_CHAR(wxWindow::OnChar) |
| 83 | EVT_KEY_UP(wxWindow::OnKeyUp) |
| 84 | #endif // wxUSE_MENUS |
| 85 | |
| 86 | EVT_PAINT(wxWindow::OnPaint) |
| 87 | EVT_NC_PAINT(wxWindow::OnNcPaint) |
| 88 | EVT_ERASE_BACKGROUND(wxWindow::OnErase) |
| 89 | END_EVENT_TABLE() |
| 90 | |
| 91 | // ---------------------------------------------------------------------------- |
| 92 | // creation |
| 93 | // ---------------------------------------------------------------------------- |
| 94 | |
| 95 | void wxWindow::Init() |
| 96 | { |
| 97 | m_scrollbarVert = |
| 98 | m_scrollbarHorz = (wxScrollBar *)NULL; |
| 99 | |
| 100 | m_isCurrent = FALSE; |
| 101 | |
| 102 | m_renderer = wxTheme::Get()->GetRenderer(); |
| 103 | } |
| 104 | |
| 105 | bool wxWindow::Create(wxWindow *parent, |
| 106 | wxWindowID id, |
| 107 | const wxPoint& pos, |
| 108 | const wxSize& size, |
| 109 | long style, |
| 110 | const wxString& name) |
| 111 | { |
| 112 | // we add wxCLIP_CHILDREN and wxNO_FULL_REPAINT_ON_RESIZE because without |
| 113 | // these styles we can't get rid of flicker on wxMSW |
| 114 | if ( !wxWindowNative::Create(parent, id, pos, size, |
| 115 | style | |
| 116 | wxCLIP_CHILDREN | |
| 117 | wxNO_FULL_REPAINT_ON_RESIZE, name) ) |
| 118 | { |
| 119 | return FALSE; |
| 120 | } |
| 121 | |
| 122 | // if we should always have the scrollbar, do show it |
| 123 | if ( GetWindowStyle() & wxALWAYS_SHOW_SB ) |
| 124 | { |
| 125 | m_scrollbarVert = new wxScrollBar(this, -1, |
| 126 | wxDefaultPosition, wxDefaultSize, |
| 127 | wxSB_VERTICAL); |
| 128 | |
| 129 | // and position it |
| 130 | PositionScrollbars(); |
| 131 | } |
| 132 | |
| 133 | // the colours/fonts are default |
| 134 | m_hasBgCol = |
| 135 | m_hasFgCol = |
| 136 | m_hasFont = FALSE; |
| 137 | |
| 138 | return TRUE; |
| 139 | } |
| 140 | |
| 141 | // ---------------------------------------------------------------------------- |
| 142 | // background pixmap |
| 143 | // ---------------------------------------------------------------------------- |
| 144 | |
| 145 | void wxWindow::SetBackground(const wxBitmap& bitmap, |
| 146 | int alignment, |
| 147 | wxStretch stretch) |
| 148 | { |
| 149 | m_bitmapBg = bitmap; |
| 150 | m_alignBgBitmap = alignment; |
| 151 | m_stretchBgBitmap = stretch; |
| 152 | } |
| 153 | |
| 154 | const wxBitmap& wxWindow::GetBackgroundBitmap(int *alignment, |
| 155 | wxStretch *stretch) const |
| 156 | { |
| 157 | if ( m_bitmapBg.Ok() ) |
| 158 | { |
| 159 | if ( alignment ) |
| 160 | *alignment = m_alignBgBitmap; |
| 161 | if ( stretch ) |
| 162 | *stretch = m_stretchBgBitmap; |
| 163 | } |
| 164 | |
| 165 | return m_bitmapBg; |
| 166 | } |
| 167 | |
| 168 | // ---------------------------------------------------------------------------- |
| 169 | // painting |
| 170 | // ---------------------------------------------------------------------------- |
| 171 | |
| 172 | // the event handler executed when the window background must be painted |
| 173 | void wxWindow::OnErase(wxEraseEvent& event) |
| 174 | { |
| 175 | if ( !m_renderer ) |
| 176 | { |
| 177 | event.Skip(); |
| 178 | |
| 179 | return; |
| 180 | } |
| 181 | |
| 182 | DoDrawBackground(*event.GetDC()); |
| 183 | |
| 184 | // if we have both scrollbars, we also have a square in the corner between |
| 185 | // them which we must paint |
| 186 | if ( m_scrollbarVert && m_scrollbarHorz ) |
| 187 | { |
| 188 | wxSize size = GetSize(); |
| 189 | wxRect rectClient = GetClientRect(), |
| 190 | rectBorder = m_renderer->GetBorderDimensions(GetBorder()); |
| 191 | |
| 192 | wxRect rectCorner; |
| 193 | rectCorner.x = rectClient.GetRight() + 1; |
| 194 | rectCorner.y = rectClient.GetBottom() + 1; |
| 195 | rectCorner.SetRight(size.x - rectBorder.width); |
| 196 | rectCorner.SetBottom(size.y - rectBorder.height); |
| 197 | |
| 198 | if ( GetUpdateRegion().Contains(rectCorner) ) |
| 199 | { |
| 200 | m_renderer->DrawScrollCorner(*event.GetDC(), rectCorner); |
| 201 | } |
| 202 | } |
| 203 | } |
| 204 | |
| 205 | // the event handlers executed when the window must be repainted |
| 206 | void wxWindow::OnNcPaint(wxPaintEvent& event) |
| 207 | { |
| 208 | if ( m_renderer ) |
| 209 | { |
| 210 | // get the window rect |
| 211 | wxRect rect; |
| 212 | wxSize size = GetSize(); |
| 213 | rect.x = |
| 214 | rect.y = 0; |
| 215 | rect.width = size.x; |
| 216 | rect.height = size.y; |
| 217 | |
| 218 | // if the scrollbars are outside the border, we must adjust the rect to |
| 219 | // exclude them |
| 220 | if ( !m_renderer->AreScrollbarsInsideBorder() ) |
| 221 | { |
| 222 | wxScrollBar *scrollbar = GetScrollbar(wxVERTICAL); |
| 223 | if ( scrollbar ) |
| 224 | rect.width -= scrollbar->GetSize().x; |
| 225 | |
| 226 | scrollbar = GetScrollbar(wxHORIZONTAL); |
| 227 | if ( scrollbar ) |
| 228 | rect.height -= scrollbar->GetSize().y; |
| 229 | } |
| 230 | |
| 231 | // get the DC and draw the border on it |
| 232 | wxWindowDC dc(this); |
| 233 | DoDrawBorder(dc, rect); |
| 234 | } |
| 235 | } |
| 236 | |
| 237 | void wxWindow::OnPaint(wxPaintEvent& event) |
| 238 | { |
| 239 | if ( !m_renderer ) |
| 240 | { |
| 241 | // it is a native control which paints itself |
| 242 | event.Skip(); |
| 243 | } |
| 244 | else |
| 245 | { |
| 246 | // get the DC to use and create renderer on it |
| 247 | wxPaintDC dc(this); |
| 248 | wxControlRenderer renderer(this, dc, m_renderer); |
| 249 | |
| 250 | // draw the control |
| 251 | DoDraw(&renderer); |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | bool wxWindow::DoDrawBackground(wxDC& dc) |
| 256 | { |
| 257 | // FIXME: leaving this code in leads to partial bg redraws sometimes under |
| 258 | // MSW |
| 259 | wxRect rect; |
| 260 | #ifndef __WXMSW__ |
| 261 | rect = GetUpdateRegion().GetBox(); |
| 262 | if ( !rect.width && !rect.height ) |
| 263 | #endif |
| 264 | { |
| 265 | wxSize size = GetSize(); |
| 266 | rect.width = size.x; |
| 267 | rect.height = size.y; |
| 268 | } |
| 269 | |
| 270 | if ( GetBackgroundBitmap().Ok() ) |
| 271 | { |
| 272 | // get the bitmap and the flags |
| 273 | int alignment; |
| 274 | wxStretch stretch; |
| 275 | wxBitmap bmp = GetBackgroundBitmap(&alignment, &stretch); |
| 276 | wxControlRenderer::DrawBitmap(dc, bmp, rect, alignment, stretch); |
| 277 | } |
| 278 | else // just fill it with bg colour if no bitmap |
| 279 | { |
| 280 | m_renderer->DrawBackground(dc, wxTHEME_BG_COLOUR(this), |
| 281 | rect, GetStateFlags()); |
| 282 | } |
| 283 | |
| 284 | return TRUE; |
| 285 | } |
| 286 | |
| 287 | void wxWindow::EraseBackground(wxDC& dc, const wxRect& rect) |
| 288 | { |
| 289 | // TODO: handle bg bitmaps here! |
| 290 | |
| 291 | m_renderer->DrawBackground(dc, wxTHEME_BG_COLOUR(this), rect, GetStateFlags()); |
| 292 | } |
| 293 | |
| 294 | void wxWindow::DoDrawBorder(wxDC& dc, const wxRect& rect) |
| 295 | { |
| 296 | // draw outline unless the update region is enitrely inside it in which |
| 297 | // case we don't need to do it |
| 298 | #if 0 // doesn't seem to work, why? |
| 299 | if ( wxRegion(rect).Contains(GetUpdateRegion().GetBox()) != wxInRegion ) |
| 300 | #endif |
| 301 | { |
| 302 | m_renderer->DrawBorder(dc, GetBorder(), rect, GetStateFlags()); |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | void wxWindow::DoDraw(wxControlRenderer *renderer) |
| 307 | { |
| 308 | } |
| 309 | |
| 310 | void wxWindow::Refresh(bool eraseBackground, const wxRect *rectClient) |
| 311 | { |
| 312 | wxRect rectWin; |
| 313 | wxPoint pt = GetClientAreaOrigin(); |
| 314 | |
| 315 | wxSize size = GetClientSize(); |
| 316 | |
| 317 | if ( rectClient ) |
| 318 | { |
| 319 | rectWin = *rectClient; |
| 320 | |
| 321 | // don't refresh anything beyond the client area (scrollbars for |
| 322 | // example) |
| 323 | if ( rectWin.GetRight() > size.x ) |
| 324 | rectWin.SetRight(size.x); |
| 325 | if ( rectWin.GetBottom() > size.y ) |
| 326 | rectWin.SetBottom(size.y); |
| 327 | |
| 328 | rectWin.Offset(pt); |
| 329 | } |
| 330 | else // refresh the entire client area |
| 331 | { |
| 332 | rectWin.x = pt.x; |
| 333 | rectWin.y = pt.y; |
| 334 | rectWin.width = size.x; |
| 335 | rectWin.height = size.y; |
| 336 | } |
| 337 | |
| 338 | // debugging helper |
| 339 | #ifdef WXDEBUG_REFRESH |
| 340 | static bool s_refreshDebug = FALSE; |
| 341 | if ( s_refreshDebug ) |
| 342 | { |
| 343 | wxWindowDC dc(this); |
| 344 | dc.SetBrush(*wxCYAN_BRUSH); |
| 345 | dc.SetPen(*wxTRANSPARENT_PEN); |
| 346 | dc.DrawRectangle(rectWin); |
| 347 | |
| 348 | // under Unix we use "--sync" X option for this |
| 349 | #if defined(__WXMSW__) && !defined(__WXMICROWIN__) |
| 350 | ::GdiFlush(); |
| 351 | ::Sleep(200); |
| 352 | #endif // __WXMSW__ |
| 353 | } |
| 354 | #endif // WXDEBUG_REFRESH |
| 355 | |
| 356 | wxWindowNative::Refresh(eraseBackground, &rectWin); |
| 357 | } |
| 358 | |
| 359 | // ---------------------------------------------------------------------------- |
| 360 | // state flags |
| 361 | // ---------------------------------------------------------------------------- |
| 362 | |
| 363 | bool wxWindow::Enable(bool enable) |
| 364 | { |
| 365 | if ( !wxWindowNative::Enable(enable) ) |
| 366 | return FALSE; |
| 367 | |
| 368 | // disabled window can't keep focus |
| 369 | if ( FindFocus() == this ) |
| 370 | { |
| 371 | GetParent()->SetFocus(); |
| 372 | } |
| 373 | |
| 374 | if ( m_renderer ) |
| 375 | { |
| 376 | // a window with renderer is drawn by ourselves and it has to be |
| 377 | // refreshed to reflect its new status |
| 378 | Refresh(); |
| 379 | } |
| 380 | |
| 381 | return TRUE; |
| 382 | } |
| 383 | |
| 384 | bool wxWindow::IsFocused() const |
| 385 | { |
| 386 | wxWindow *self = wxConstCast(this, wxWindow); |
| 387 | return self->FindFocus() == self; |
| 388 | } |
| 389 | |
| 390 | bool wxWindow::IsPressed() const |
| 391 | { |
| 392 | return FALSE; |
| 393 | } |
| 394 | |
| 395 | bool wxWindow::IsDefault() const |
| 396 | { |
| 397 | return FALSE; |
| 398 | } |
| 399 | |
| 400 | bool wxWindow::IsCurrent() const |
| 401 | { |
| 402 | return m_isCurrent; |
| 403 | } |
| 404 | |
| 405 | bool wxWindow::SetCurrent(bool doit) |
| 406 | { |
| 407 | if ( doit == m_isCurrent ) |
| 408 | return FALSE; |
| 409 | |
| 410 | m_isCurrent = doit; |
| 411 | |
| 412 | if ( CanBeHighlighted() ) |
| 413 | Refresh(); |
| 414 | |
| 415 | return TRUE; |
| 416 | } |
| 417 | |
| 418 | int wxWindow::GetStateFlags() const |
| 419 | { |
| 420 | int flags = 0; |
| 421 | if ( !IsEnabled() ) |
| 422 | flags |= wxCONTROL_DISABLED; |
| 423 | |
| 424 | // the following states are only possible if our application is active - if |
| 425 | // it is not, even our default/focused controls shouldn't appear as such |
| 426 | if ( wxTheApp->IsActive() ) |
| 427 | { |
| 428 | if ( IsCurrent() ) |
| 429 | flags |= wxCONTROL_CURRENT; |
| 430 | if ( IsFocused() ) |
| 431 | flags |= wxCONTROL_FOCUSED; |
| 432 | if ( IsPressed() ) |
| 433 | flags |= wxCONTROL_PRESSED; |
| 434 | if ( IsDefault() ) |
| 435 | flags |= wxCONTROL_ISDEFAULT; |
| 436 | } |
| 437 | |
| 438 | return flags; |
| 439 | } |
| 440 | |
| 441 | // ---------------------------------------------------------------------------- |
| 442 | // size |
| 443 | // ---------------------------------------------------------------------------- |
| 444 | |
| 445 | void wxWindow::OnSize(wxSizeEvent& event) |
| 446 | { |
| 447 | if ( m_scrollbarVert || m_scrollbarHorz ) |
| 448 | { |
| 449 | PositionScrollbars(); |
| 450 | } |
| 451 | |
| 452 | event.Skip(); |
| 453 | } |
| 454 | |
| 455 | wxSize wxWindow::DoGetBestSize() const |
| 456 | { |
| 457 | return AdjustSize(DoGetBestClientSize()); |
| 458 | } |
| 459 | |
| 460 | wxSize wxWindow::DoGetBestClientSize() const |
| 461 | { |
| 462 | return wxWindowNative::DoGetBestSize(); |
| 463 | } |
| 464 | |
| 465 | wxSize wxWindow::AdjustSize(const wxSize& size) const |
| 466 | { |
| 467 | wxSize sz = size; |
| 468 | if ( m_renderer ) |
| 469 | m_renderer->AdjustSize(&sz, this); |
| 470 | return sz; |
| 471 | } |
| 472 | |
| 473 | wxPoint wxWindow::GetClientAreaOrigin() const |
| 474 | { |
| 475 | wxPoint pt = wxWindowBase::GetClientAreaOrigin(); |
| 476 | |
| 477 | if ( m_renderer ) |
| 478 | pt += m_renderer->GetBorderDimensions(GetBorder()).GetPosition(); |
| 479 | |
| 480 | return pt; |
| 481 | } |
| 482 | |
| 483 | void wxWindow::DoGetClientSize(int *width, int *height) const |
| 484 | { |
| 485 | // if it is a native window, we assume it handles the scrollbars itself |
| 486 | // too - and if it doesn't, there is not much we can do |
| 487 | if ( !m_renderer ) |
| 488 | { |
| 489 | wxWindowNative::DoGetClientSize(width, height); |
| 490 | |
| 491 | return; |
| 492 | } |
| 493 | |
| 494 | int w, h; |
| 495 | wxWindowNative::DoGetClientSize(&w, &h); |
| 496 | |
| 497 | // we assume that the scrollbars are positioned correctly (by a previous |
| 498 | // call to PositionScrollbars()) here |
| 499 | |
| 500 | wxRect rectBorder; |
| 501 | if ( m_renderer ) |
| 502 | rectBorder = m_renderer->GetBorderDimensions(GetBorder()); |
| 503 | |
| 504 | bool inside = m_renderer->AreScrollbarsInsideBorder(); |
| 505 | |
| 506 | if ( width ) |
| 507 | { |
| 508 | // in any case, take account of the scrollbar |
| 509 | if ( m_scrollbarVert ) |
| 510 | w -= m_scrollbarVert->GetSize().x; |
| 511 | |
| 512 | // if we don't have scrollbar or if it is outside the border (and not |
| 513 | // blended into it), take account of the right border as well |
| 514 | if ( !m_scrollbarVert || inside ) |
| 515 | w -= rectBorder.width; |
| 516 | |
| 517 | // and always account for the left border |
| 518 | *width = w - rectBorder.x; |
| 519 | |
| 520 | // we shouldn't return invalid width |
| 521 | if ( *width < 0 ) |
| 522 | *width = 0; |
| 523 | } |
| 524 | |
| 525 | if ( height ) |
| 526 | { |
| 527 | if ( m_scrollbarHorz ) |
| 528 | h -= m_scrollbarHorz->GetSize().y; |
| 529 | |
| 530 | if ( !m_scrollbarHorz || inside ) |
| 531 | h -= rectBorder.height; |
| 532 | |
| 533 | *height = h - rectBorder.y; |
| 534 | |
| 535 | // we shouldn't return invalid height |
| 536 | if ( *height < 0 ) |
| 537 | *height = 0; |
| 538 | } |
| 539 | } |
| 540 | |
| 541 | void wxWindow::DoSetClientSize(int width, int height) |
| 542 | { |
| 543 | // take into account the borders |
| 544 | wxRect rectBorder = m_renderer->GetBorderDimensions(GetBorder()); |
| 545 | width += rectBorder.x; |
| 546 | height += rectBorder.y; |
| 547 | |
| 548 | // and the scrollbars (as they may be offset into the border, use the |
| 549 | // scrollbar position, not size - this supposes that PositionScrollbars() |
| 550 | // had been called before) |
| 551 | bool inside = m_renderer->AreScrollbarsInsideBorder(); |
| 552 | wxSize size = GetSize(); |
| 553 | if ( m_scrollbarVert ) |
| 554 | width += size.x - m_scrollbarVert->GetPosition().x; |
| 555 | if ( !m_scrollbarVert || inside ) |
| 556 | width += rectBorder.width; |
| 557 | |
| 558 | if ( m_scrollbarHorz ) |
| 559 | height += size.y - m_scrollbarHorz->GetPosition().y; |
| 560 | if ( !m_scrollbarHorz || inside ) |
| 561 | height += rectBorder.height; |
| 562 | |
| 563 | wxWindowNative::DoSetClientSize(width, height); |
| 564 | } |
| 565 | |
| 566 | wxHitTest wxWindow::DoHitTest(wxCoord x, wxCoord y) const |
| 567 | { |
| 568 | wxHitTest ht = wxWindowNative::DoHitTest(x, y); |
| 569 | if ( ht == wxHT_WINDOW_INSIDE ) |
| 570 | { |
| 571 | if ( m_scrollbarVert && x >= m_scrollbarVert->GetPosition().x ) |
| 572 | { |
| 573 | // it can still be changed below because it may also be the corner |
| 574 | ht = wxHT_WINDOW_VERT_SCROLLBAR; |
| 575 | } |
| 576 | |
| 577 | if ( m_scrollbarHorz && y >= m_scrollbarHorz->GetPosition().y ) |
| 578 | { |
| 579 | ht = ht == wxHT_WINDOW_VERT_SCROLLBAR ? wxHT_WINDOW_CORNER |
| 580 | : wxHT_WINDOW_HORZ_SCROLLBAR; |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | return ht; |
| 585 | } |
| 586 | |
| 587 | // ---------------------------------------------------------------------------- |
| 588 | // scrolling: we implement it entirely ourselves except for ScrollWindow() |
| 589 | // function which is supposed to be (efficiently) implemented by the native |
| 590 | // window class |
| 591 | // ---------------------------------------------------------------------------- |
| 592 | |
| 593 | void wxWindow::RefreshScrollbars() |
| 594 | { |
| 595 | if ( m_scrollbarHorz ) |
| 596 | m_scrollbarHorz->Refresh(); |
| 597 | |
| 598 | if ( m_scrollbarVert ) |
| 599 | m_scrollbarVert->Refresh(); |
| 600 | } |
| 601 | |
| 602 | void wxWindow::PositionScrollbars() |
| 603 | { |
| 604 | // do not use GetClientSize/Rect as it relies on the scrollbars being |
| 605 | // correctly positioned |
| 606 | |
| 607 | wxSize size = GetSize(); |
| 608 | wxBorder border = GetBorder(); |
| 609 | wxRect rectBorder = m_renderer->GetBorderDimensions(border); |
| 610 | bool inside = m_renderer->AreScrollbarsInsideBorder(); |
| 611 | |
| 612 | int height = m_scrollbarHorz ? m_scrollbarHorz->GetSize().y : 0; |
| 613 | int width = m_scrollbarVert ? m_scrollbarVert->GetSize().x : 0; |
| 614 | |
| 615 | wxRect rectBar; |
| 616 | if ( m_scrollbarVert ) |
| 617 | { |
| 618 | rectBar.x = size.x - width; |
| 619 | if ( inside ) |
| 620 | rectBar.x -= rectBorder.width; |
| 621 | rectBar.width = width; |
| 622 | rectBar.y = 0; |
| 623 | if ( inside ) |
| 624 | rectBar.y += rectBorder.y; |
| 625 | rectBar.height = size.y - height; |
| 626 | if ( inside ) |
| 627 | rectBar.height -= rectBorder.y + rectBorder.height; |
| 628 | |
| 629 | m_scrollbarVert->SetSize(rectBar, wxSIZE_NO_ADJUSTMENTS); |
| 630 | } |
| 631 | |
| 632 | if ( m_scrollbarHorz ) |
| 633 | { |
| 634 | rectBar.y = size.y - height; |
| 635 | if ( inside ) |
| 636 | rectBar.y -= rectBorder.height; |
| 637 | rectBar.height = height; |
| 638 | rectBar.x = 0; |
| 639 | if ( inside ) |
| 640 | rectBar.x += rectBorder.x; |
| 641 | rectBar.width = size.x - width; |
| 642 | if ( inside ) |
| 643 | rectBar.width -= rectBorder.x + rectBorder.width; |
| 644 | |
| 645 | m_scrollbarHorz->SetSize(rectBar, wxSIZE_NO_ADJUSTMENTS); |
| 646 | } |
| 647 | |
| 648 | RefreshScrollbars(); |
| 649 | } |
| 650 | |
| 651 | void wxWindow::SetScrollbar(int orient, |
| 652 | int pos, |
| 653 | int pageSize, |
| 654 | int range, |
| 655 | bool refresh) |
| 656 | { |
| 657 | bool hasClientSizeChanged = FALSE; |
| 658 | wxScrollBar *scrollbar = GetScrollbar(orient); |
| 659 | if ( range ) |
| 660 | { |
| 661 | if ( !scrollbar ) |
| 662 | { |
| 663 | // create it |
| 664 | scrollbar = new wxScrollBar(this, -1, |
| 665 | wxDefaultPosition, wxDefaultSize, |
| 666 | orient & wxVERTICAL ? wxSB_VERTICAL |
| 667 | : wxSB_HORIZONTAL); |
| 668 | if ( orient & wxVERTICAL ) |
| 669 | m_scrollbarVert = scrollbar; |
| 670 | else |
| 671 | m_scrollbarHorz = scrollbar; |
| 672 | |
| 673 | // the client area diminished as we created a scrollbar |
| 674 | hasClientSizeChanged = TRUE; |
| 675 | |
| 676 | PositionScrollbars(); |
| 677 | } |
| 678 | else if ( GetWindowStyle() & wxALWAYS_SHOW_SB ) |
| 679 | { |
| 680 | // we might have disabled it before |
| 681 | scrollbar->Enable(); |
| 682 | } |
| 683 | |
| 684 | scrollbar->SetScrollbar(pos, pageSize, range, pageSize, refresh); |
| 685 | } |
| 686 | else // no range means no scrollbar |
| 687 | { |
| 688 | if ( scrollbar ) |
| 689 | { |
| 690 | // wxALWAYS_SHOW_SB only applies to the vertical scrollbar |
| 691 | if ( (orient & wxVERTICAL) && (GetWindowStyle() & wxALWAYS_SHOW_SB) ) |
| 692 | { |
| 693 | // just disable the scrollbar |
| 694 | scrollbar->SetScrollbar(pos, pageSize, range, pageSize, refresh); |
| 695 | scrollbar->Disable(); |
| 696 | } |
| 697 | else // really remove the scrollbar |
| 698 | { |
| 699 | delete scrollbar; |
| 700 | |
| 701 | if ( orient & wxVERTICAL ) |
| 702 | m_scrollbarVert = NULL; |
| 703 | else |
| 704 | m_scrollbarHorz = NULL; |
| 705 | |
| 706 | // the client area increased as we removed a scrollbar |
| 707 | hasClientSizeChanged = TRUE; |
| 708 | |
| 709 | // the size of the remaining scrollbar must be adjusted |
| 710 | if ( m_scrollbarHorz || m_scrollbarVert ) |
| 711 | { |
| 712 | PositionScrollbars(); |
| 713 | } |
| 714 | } |
| 715 | } |
| 716 | } |
| 717 | |
| 718 | // give the window a chance to relayout |
| 719 | if ( hasClientSizeChanged ) |
| 720 | { |
| 721 | wxSizeEvent event(GetSize()); |
| 722 | (void)GetEventHandler()->ProcessEvent(event); |
| 723 | } |
| 724 | } |
| 725 | |
| 726 | void wxWindow::SetScrollPos(int orient, int pos, bool refresh) |
| 727 | { |
| 728 | wxScrollBar *scrollbar = GetScrollbar(orient); |
| 729 | wxCHECK_RET( scrollbar, _T("no scrollbar to set position for") ); |
| 730 | |
| 731 | scrollbar->SetThumbPosition(pos); |
| 732 | |
| 733 | // VZ: I think we can safely ignore this as we always refresh it |
| 734 | // automatically whenever the value chanegs |
| 735 | #if 0 |
| 736 | if ( refresh ) |
| 737 | Refresh(); |
| 738 | #endif |
| 739 | } |
| 740 | |
| 741 | int wxWindow::GetScrollPos(int orient) const |
| 742 | { |
| 743 | wxScrollBar *scrollbar = GetScrollbar(orient); |
| 744 | return scrollbar ? scrollbar->GetThumbPosition() : 0; |
| 745 | } |
| 746 | |
| 747 | int wxWindow::GetScrollThumb(int orient) const |
| 748 | { |
| 749 | wxScrollBar *scrollbar = GetScrollbar(orient); |
| 750 | return scrollbar ? scrollbar->GetThumbSize() : 0; |
| 751 | } |
| 752 | |
| 753 | int wxWindow::GetScrollRange(int orient) const |
| 754 | { |
| 755 | wxScrollBar *scrollbar = GetScrollbar(orient); |
| 756 | return scrollbar ? scrollbar->GetRange() : 0; |
| 757 | } |
| 758 | |
| 759 | void wxWindow::ScrollWindow(int dx, int dy, const wxRect *rect) |
| 760 | { |
| 761 | // before scrolling it, ensure that we don't have any unpainted areas |
| 762 | Update(); |
| 763 | |
| 764 | wxRect r; |
| 765 | |
| 766 | if ( dx ) |
| 767 | { |
| 768 | r = ScrollNoRefresh(dx, 0, rect); |
| 769 | Refresh(TRUE /* erase bkgnd */, &r); |
| 770 | } |
| 771 | |
| 772 | if ( dy ) |
| 773 | { |
| 774 | r = ScrollNoRefresh(0, dy, rect); |
| 775 | Refresh(TRUE /* erase bkgnd */, &r); |
| 776 | } |
| 777 | } |
| 778 | |
| 779 | wxRect wxWindow::ScrollNoRefresh(int dx, int dy, const wxRect *rectTotal) |
| 780 | { |
| 781 | wxASSERT_MSG( !dx || !dy, _T("can't be used for diag scrolling") ); |
| 782 | |
| 783 | // the rect to refresh (which we will calculate) |
| 784 | wxRect rect; |
| 785 | |
| 786 | if ( !dx && !dy ) |
| 787 | { |
| 788 | // nothing to do |
| 789 | return rect; |
| 790 | } |
| 791 | |
| 792 | // calculate the part of the window which we can just redraw in the new |
| 793 | // location |
| 794 | wxSize sizeTotal = rectTotal ? rectTotal->GetSize() : GetClientSize(); |
| 795 | |
| 796 | wxLogTrace(_T("scroll"), _T("rect is %dx%d, scroll by %d, %d"), |
| 797 | sizeTotal.x, sizeTotal.y, dx, dy); |
| 798 | |
| 799 | // the initial and end point of the region we move in client coords |
| 800 | wxPoint ptSource, ptDest; |
| 801 | if ( rectTotal ) |
| 802 | { |
| 803 | ptSource = rectTotal->GetPosition(); |
| 804 | ptDest = rectTotal->GetPosition(); |
| 805 | } |
| 806 | |
| 807 | // the size of this region |
| 808 | wxSize size; |
| 809 | size.x = sizeTotal.x - abs(dx); |
| 810 | size.y = sizeTotal.y - abs(dy); |
| 811 | if ( size.x <= 0 || size.y <= 0 ) |
| 812 | { |
| 813 | // just redraw everything as nothing of the displayed image will stay |
| 814 | wxLogTrace(_T("scroll"), _T("refreshing everything")); |
| 815 | |
| 816 | rect = rectTotal ? *rectTotal : wxRect(0, 0, sizeTotal.x, sizeTotal.y); |
| 817 | } |
| 818 | else // move the part which doesn't change to the new location |
| 819 | { |
| 820 | // note that when we scroll the canvas in some direction we move the |
| 821 | // block which doesn't need to be refreshed in the opposite direction |
| 822 | |
| 823 | if ( dx < 0 ) |
| 824 | { |
| 825 | // scroll to the right, move to the left |
| 826 | ptSource.x -= dx; |
| 827 | } |
| 828 | else |
| 829 | { |
| 830 | // scroll to the left, move to the right |
| 831 | ptDest.x += dx; |
| 832 | } |
| 833 | |
| 834 | if ( dy < 0 ) |
| 835 | { |
| 836 | // scroll down, move up |
| 837 | ptSource.y -= dy; |
| 838 | } |
| 839 | else |
| 840 | { |
| 841 | // scroll up, move down |
| 842 | ptDest.y += dy; |
| 843 | } |
| 844 | |
| 845 | #if wxUSE_CARET |
| 846 | // we need to hide the caret before moving or it will erase itself at |
| 847 | // the wrong (old) location |
| 848 | wxCaret *caret = GetCaret(); |
| 849 | if ( caret ) |
| 850 | caret->Hide(); |
| 851 | #endif // wxUSE_CARET |
| 852 | |
| 853 | // do move |
| 854 | wxClientDC dc(this); |
| 855 | wxBitmap bmp(size.x, size.y); |
| 856 | wxMemoryDC dcMem; |
| 857 | dcMem.SelectObject(bmp); |
| 858 | |
| 859 | dcMem.Blit(wxPoint(0, 0), size, &dc, ptSource |
| 860 | #if defined(__WXGTK__) && !defined(wxHAS_WORKING_GTK_DC_BLIT) |
| 861 | + GetClientAreaOrigin() |
| 862 | #endif // broken wxGTK wxDC::Blit |
| 863 | ); |
| 864 | dc.Blit(ptDest, size, &dcMem, wxPoint(0, 0)); |
| 865 | |
| 866 | wxLogTrace(_T("scroll"), |
| 867 | _T("Blit: (%d, %d) of size %dx%d -> (%d, %d)"), |
| 868 | ptSource.x, ptSource.y, |
| 869 | size.x, size.y, |
| 870 | ptDest.x, ptDest.y); |
| 871 | |
| 872 | // and now repaint the uncovered area |
| 873 | |
| 874 | // FIXME: We repaint the intersection of these rectangles twice - is |
| 875 | // it bad? I don't think so as it is rare to scroll the window |
| 876 | // diagonally anyhow and so adding extra logic to compute |
| 877 | // rectangle intersection is probably not worth the effort |
| 878 | |
| 879 | rect.x = ptSource.x; |
| 880 | rect.y = ptSource.y; |
| 881 | |
| 882 | if ( dx ) |
| 883 | { |
| 884 | if ( dx < 0 ) |
| 885 | { |
| 886 | // refresh the area along the right border |
| 887 | rect.x += size.x + dx; |
| 888 | rect.width = -dx; |
| 889 | } |
| 890 | else |
| 891 | { |
| 892 | // refresh the area along the left border |
| 893 | rect.width = dx; |
| 894 | } |
| 895 | |
| 896 | rect.height = sizeTotal.y; |
| 897 | |
| 898 | wxLogTrace(_T("scroll"), _T("refreshing (%d, %d)-(%d, %d)"), |
| 899 | rect.x, rect.y, |
| 900 | rect.GetRight() + 1, rect.GetBottom() + 1); |
| 901 | } |
| 902 | |
| 903 | if ( dy ) |
| 904 | { |
| 905 | if ( dy < 0 ) |
| 906 | { |
| 907 | // refresh the area along the bottom border |
| 908 | rect.y += size.y + dy; |
| 909 | rect.height = -dy; |
| 910 | } |
| 911 | else |
| 912 | { |
| 913 | // refresh the area along the top border |
| 914 | rect.height = dy; |
| 915 | } |
| 916 | |
| 917 | rect.width = sizeTotal.x; |
| 918 | |
| 919 | wxLogTrace(_T("scroll"), _T("refreshing (%d, %d)-(%d, %d)"), |
| 920 | rect.x, rect.y, |
| 921 | rect.GetRight() + 1, rect.GetBottom() + 1); |
| 922 | } |
| 923 | |
| 924 | #if wxUSE_CARET |
| 925 | if ( caret ) |
| 926 | caret->Show(); |
| 927 | #endif // wxUSE_CARET |
| 928 | } |
| 929 | |
| 930 | return rect; |
| 931 | } |
| 932 | |
| 933 | // ---------------------------------------------------------------------------- |
| 934 | // colours/fonts |
| 935 | // ---------------------------------------------------------------------------- |
| 936 | |
| 937 | bool wxWindow::SetBackgroundColour(const wxColour& colour) |
| 938 | { |
| 939 | if ( !wxWindowNative::SetBackgroundColour(colour) ) |
| 940 | return FALSE; |
| 941 | |
| 942 | m_hasBgCol = TRUE; |
| 943 | |
| 944 | return TRUE; |
| 945 | } |
| 946 | |
| 947 | bool wxWindow::SetForegroundColour(const wxColour& colour) |
| 948 | { |
| 949 | if ( !wxWindowNative::SetForegroundColour(colour) ) |
| 950 | return FALSE; |
| 951 | |
| 952 | m_hasFgCol = TRUE; |
| 953 | |
| 954 | return TRUE; |
| 955 | } |
| 956 | |
| 957 | bool wxWindow::SetFont(const wxFont& font) |
| 958 | { |
| 959 | if ( !wxWindowNative::SetFont(font) ) |
| 960 | return FALSE; |
| 961 | |
| 962 | m_hasFont = TRUE; |
| 963 | |
| 964 | return TRUE; |
| 965 | } |
| 966 | |
| 967 | // ---------------------------------------------------------------------------- |
| 968 | // mouse capture |
| 969 | // ---------------------------------------------------------------------------- |
| 970 | |
| 971 | struct WXDLLEXPORT wxWindowNext |
| 972 | { |
| 973 | wxWindow *win; |
| 974 | wxWindowNext *next; |
| 975 | } *wxWindow::ms_winCaptureNext = NULL; |
| 976 | |
| 977 | void wxWindow::CaptureMouse() |
| 978 | { |
| 979 | wxWindow *winOld = GetCapture(); |
| 980 | if ( winOld ) |
| 981 | { |
| 982 | // save it on stack |
| 983 | wxWindowNext *item = new wxWindowNext; |
| 984 | item->win = winOld; |
| 985 | item->next = ms_winCaptureNext; |
| 986 | ms_winCaptureNext = item; |
| 987 | } |
| 988 | //else: no mouse capture to save |
| 989 | |
| 990 | wxWindowNative::CaptureMouse(); |
| 991 | } |
| 992 | |
| 993 | void wxWindow::ReleaseMouse() |
| 994 | { |
| 995 | wxWindowNative::ReleaseMouse(); |
| 996 | |
| 997 | if ( ms_winCaptureNext ) |
| 998 | { |
| 999 | ms_winCaptureNext->win->CaptureMouse(); |
| 1000 | |
| 1001 | wxWindowNext *item = ms_winCaptureNext; |
| 1002 | ms_winCaptureNext = item->next; |
| 1003 | delete item; |
| 1004 | } |
| 1005 | //else: stack is empty, no previous capture |
| 1006 | } |
| 1007 | |
| 1008 | // ---------------------------------------------------------------------------- |
| 1009 | // accelerators and menu hot keys |
| 1010 | // ---------------------------------------------------------------------------- |
| 1011 | |
| 1012 | #if wxUSE_MENUS |
| 1013 | // the last window over which Alt was pressed (used by OnKeyUp) |
| 1014 | wxWindow *wxWindow::ms_winLastAltPress = NULL; |
| 1015 | #endif // wxUSE_MENUS |
| 1016 | |
| 1017 | #if wxUSE_ACCEL || wxUSE_MENUS |
| 1018 | |
| 1019 | void wxWindow::OnKeyDown(wxKeyEvent& event) |
| 1020 | { |
| 1021 | #if wxUSE_MENUS |
| 1022 | int key = event.GetKeyCode(); |
| 1023 | if ( !event.ControlDown() && (key == WXK_MENU || key == WXK_F10) ) |
| 1024 | { |
| 1025 | ms_winLastAltPress = this; |
| 1026 | |
| 1027 | // it can't be an accel anyhow |
| 1028 | return; |
| 1029 | } |
| 1030 | |
| 1031 | ms_winLastAltPress = NULL; |
| 1032 | #endif // wxUSE_MENUS |
| 1033 | |
| 1034 | #if wxUSE_ACCEL |
| 1035 | for ( wxWindow *win = this; win; win = win->GetParent() ) |
| 1036 | { |
| 1037 | int command = win->GetAcceleratorTable()->GetCommand(event); |
| 1038 | if ( command != -1 ) |
| 1039 | { |
| 1040 | wxCommandEvent eventCmd(wxEVT_COMMAND_MENU_SELECTED, command); |
| 1041 | if ( win->GetEventHandler()->ProcessEvent(eventCmd) ) |
| 1042 | { |
| 1043 | // skip "event.Skip()" below |
| 1044 | return; |
| 1045 | } |
| 1046 | } |
| 1047 | |
| 1048 | if ( win->IsTopLevel() ) |
| 1049 | { |
| 1050 | // try the frame menu bar |
| 1051 | #if wxUSE_MENUS |
| 1052 | wxFrame *frame = wxDynamicCast(win, wxFrame); |
| 1053 | if ( frame ) |
| 1054 | { |
| 1055 | wxMenuBar *menubar = frame->GetMenuBar(); |
| 1056 | if ( menubar && menubar->ProcessAccelEvent(event) ) |
| 1057 | { |
| 1058 | // skip "event.Skip()" below |
| 1059 | return; |
| 1060 | } |
| 1061 | } |
| 1062 | #endif // wxUSE_MENUS |
| 1063 | |
| 1064 | // don't propagate accels from the child frame to the parent one |
| 1065 | break; |
| 1066 | } |
| 1067 | } |
| 1068 | #endif // wxUSE_ACCEL |
| 1069 | |
| 1070 | event.Skip(); |
| 1071 | } |
| 1072 | |
| 1073 | #endif // wxUSE_ACCEL |
| 1074 | |
| 1075 | #if wxUSE_MENUS |
| 1076 | |
| 1077 | wxMenuBar *wxWindow::GetParentFrameMenuBar() const |
| 1078 | { |
| 1079 | for ( const wxWindow *win = this; win; win = win->GetParent() ) |
| 1080 | { |
| 1081 | if ( win->IsTopLevel() ) |
| 1082 | { |
| 1083 | wxFrame *frame = wxDynamicCast(win, wxFrame); |
| 1084 | if ( frame ) |
| 1085 | { |
| 1086 | return frame->GetMenuBar(); |
| 1087 | } |
| 1088 | |
| 1089 | // don't look further - we don't want to return the menubar of the |
| 1090 | // parent frame |
| 1091 | break; |
| 1092 | } |
| 1093 | } |
| 1094 | |
| 1095 | return NULL; |
| 1096 | } |
| 1097 | |
| 1098 | void wxWindow::OnChar(wxKeyEvent& event) |
| 1099 | { |
| 1100 | if ( event.AltDown() && !event.ControlDown() ) |
| 1101 | { |
| 1102 | int key = event.GetKeyCode(); |
| 1103 | |
| 1104 | wxMenuBar *menubar = GetParentFrameMenuBar(); |
| 1105 | if ( menubar ) |
| 1106 | { |
| 1107 | int item = menubar->FindNextItemForAccel(-1, key); |
| 1108 | if ( item != -1 ) |
| 1109 | { |
| 1110 | menubar->PopupMenu((size_t)item); |
| 1111 | |
| 1112 | // skip "event.Skip()" below |
| 1113 | return; |
| 1114 | } |
| 1115 | } |
| 1116 | } |
| 1117 | |
| 1118 | event.Skip(); |
| 1119 | } |
| 1120 | |
| 1121 | void wxWindow::OnKeyUp(wxKeyEvent& event) |
| 1122 | { |
| 1123 | int key = event.GetKeyCode(); |
| 1124 | if ( !event.HasModifiers() && (key == WXK_MENU || key == WXK_F10) ) |
| 1125 | { |
| 1126 | // only process Alt release specially if there were no other key |
| 1127 | // presses since Alt had been pressed and if both events happened in |
| 1128 | // the same window |
| 1129 | if ( ms_winLastAltPress == this ) |
| 1130 | { |
| 1131 | wxMenuBar *menubar = GetParentFrameMenuBar(); |
| 1132 | if ( menubar && this != menubar ) |
| 1133 | { |
| 1134 | menubar->SelectMenu(0); |
| 1135 | } |
| 1136 | } |
| 1137 | } |
| 1138 | else |
| 1139 | { |
| 1140 | event.Skip(); |
| 1141 | } |
| 1142 | |
| 1143 | // in any case reset it |
| 1144 | ms_winLastAltPress = NULL; |
| 1145 | } |
| 1146 | |
| 1147 | #endif // wxUSE_MENUS |
| 1148 | |