| 1 | /////////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: univ/ctrlrend.cpp |
| 3 | // Purpose: wxControlRenderer implementation |
| 4 | // Author: Vadim Zeitlin |
| 5 | // Modified by: |
| 6 | // Created: 15.08.00 |
| 7 | // RCS-ID: $Id$ |
| 8 | // Copyright: (c) 2000 SciTech Software, Inc. (www.scitechsoft.com) |
| 9 | // Licence: wxWindows licence |
| 10 | /////////////////////////////////////////////////////////////////////////////// |
| 11 | |
| 12 | // =========================================================================== |
| 13 | // declarations |
| 14 | // =========================================================================== |
| 15 | |
| 16 | // --------------------------------------------------------------------------- |
| 17 | // headers |
| 18 | // --------------------------------------------------------------------------- |
| 19 | |
| 20 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) |
| 21 | #pragma implementation "renderer.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/control.h" |
| 34 | #include "wx/checklst.h" |
| 35 | #include "wx/listbox.h" |
| 36 | #include "wx/scrolbar.h" |
| 37 | #include "wx/dc.h" |
| 38 | #endif // WX_PRECOMP |
| 39 | |
| 40 | #include "wx/image.h" |
| 41 | #include "wx/log.h" |
| 42 | |
| 43 | #include "wx/univ/theme.h" |
| 44 | #include "wx/univ/renderer.h" |
| 45 | #include "wx/univ/colschem.h" |
| 46 | |
| 47 | #if wxUSE_GAUGE |
| 48 | #include "wx/gauge.h" |
| 49 | #endif |
| 50 | |
| 51 | // ============================================================================ |
| 52 | // implementation |
| 53 | // ============================================================================ |
| 54 | |
| 55 | // ---------------------------------------------------------------------------- |
| 56 | // wxRenderer: drawing helpers |
| 57 | // ---------------------------------------------------------------------------- |
| 58 | |
| 59 | void wxRenderer::StandardDrawFrame(wxDC& dc, |
| 60 | const wxRect& rectFrame, |
| 61 | const wxRect& rectLabel) |
| 62 | { |
| 63 | // draw left, bottom and right lines entirely |
| 64 | DrawVerticalLine(dc, rectFrame.GetLeft(), |
| 65 | rectFrame.GetTop(), rectFrame.GetBottom() - 2); |
| 66 | DrawHorizontalLine(dc, rectFrame.GetBottom() - 1, |
| 67 | rectFrame.GetLeft(), rectFrame.GetRight()); |
| 68 | DrawVerticalLine(dc, rectFrame.GetRight() - 1, |
| 69 | rectFrame.GetTop(), rectFrame.GetBottom() - 1); |
| 70 | |
| 71 | // and 2 parts of the top line |
| 72 | DrawHorizontalLine(dc, rectFrame.GetTop(), |
| 73 | rectFrame.GetLeft() + 1, rectLabel.GetLeft()); |
| 74 | DrawHorizontalLine(dc, rectFrame.GetTop(), |
| 75 | rectLabel.GetRight(), rectFrame.GetRight() - 2); |
| 76 | } |
| 77 | |
| 78 | /* static */ |
| 79 | void wxRenderer::StandardDrawTextLine(wxDC& dc, |
| 80 | const wxString& text, |
| 81 | const wxRect& rect, |
| 82 | int selStart, int selEnd, |
| 83 | int flags) |
| 84 | { |
| 85 | if ( (selStart == -1) || !(flags & wxCONTROL_FOCUSED) ) |
| 86 | { |
| 87 | // just draw it as is |
| 88 | dc.DrawText(text, rect.x, rect.y); |
| 89 | } |
| 90 | else // we have selection |
| 91 | { |
| 92 | wxCoord width, |
| 93 | x = rect.x; |
| 94 | |
| 95 | // draw the part before selection |
| 96 | wxString s(text, (size_t)selStart); |
| 97 | if ( !s.empty() ) |
| 98 | { |
| 99 | dc.DrawText(s, x, rect.y); |
| 100 | |
| 101 | dc.GetTextExtent(s, &width, NULL); |
| 102 | x += width; |
| 103 | } |
| 104 | |
| 105 | // draw the selection itself |
| 106 | s = wxString(text.c_str() + selStart, text.c_str() + selEnd); |
| 107 | if ( !s.empty() ) |
| 108 | { |
| 109 | wxColour colFg = dc.GetTextForeground(), |
| 110 | colBg = dc.GetTextBackground(); |
| 111 | dc.SetTextForeground(wxTHEME_COLOUR(HIGHLIGHT_TEXT)); |
| 112 | dc.SetTextBackground(wxTHEME_COLOUR(HIGHLIGHT)); |
| 113 | dc.SetBackgroundMode(wxSOLID); |
| 114 | |
| 115 | dc.DrawText(s, x, rect.y); |
| 116 | dc.GetTextExtent(s, &width, NULL); |
| 117 | x += width; |
| 118 | |
| 119 | dc.SetBackgroundMode(wxTRANSPARENT); |
| 120 | dc.SetTextBackground(colBg); |
| 121 | dc.SetTextForeground(colFg); |
| 122 | } |
| 123 | |
| 124 | // draw the final part |
| 125 | s = text.c_str() + selEnd; |
| 126 | if ( !s.empty() ) |
| 127 | { |
| 128 | dc.DrawText(s, x, rect.y); |
| 129 | } |
| 130 | } |
| 131 | } |
| 132 | |
| 133 | // ---------------------------------------------------------------------------- |
| 134 | // wxRenderer: scrollbar geometry |
| 135 | // ---------------------------------------------------------------------------- |
| 136 | |
| 137 | /* static */ |
| 138 | void wxRenderer::StandardScrollBarThumbSize(wxCoord length, |
| 139 | int thumbPos, |
| 140 | int thumbSize, |
| 141 | int range, |
| 142 | wxCoord *thumbStart, |
| 143 | wxCoord *thumbEnd) |
| 144 | { |
| 145 | // the thumb can't be made less than this number of pixels |
| 146 | static const wxCoord thumbMinWidth = 8; // FIXME: should be configurable |
| 147 | |
| 148 | *thumbStart = (length*thumbPos) / range; |
| 149 | *thumbEnd = (length*(thumbPos + thumbSize)) / range; |
| 150 | |
| 151 | if ( *thumbEnd - *thumbStart < thumbMinWidth ) |
| 152 | { |
| 153 | // adjust the end if possible |
| 154 | if ( *thumbStart <= length - thumbMinWidth ) |
| 155 | { |
| 156 | // yes, just make it wider |
| 157 | *thumbEnd = *thumbStart + thumbMinWidth; |
| 158 | } |
| 159 | else // it is at the bottom of the scrollbar |
| 160 | { |
| 161 | // so move it a bit up |
| 162 | *thumbStart = length - thumbMinWidth; |
| 163 | *thumbEnd = length; |
| 164 | } |
| 165 | } |
| 166 | } |
| 167 | |
| 168 | /* static */ |
| 169 | wxRect wxRenderer::StandardGetScrollbarRect(const wxScrollBar *scrollbar, |
| 170 | wxScrollBar::Element elem, |
| 171 | int thumbPos, |
| 172 | const wxSize& sizeArrow) |
| 173 | { |
| 174 | if ( thumbPos == -1 ) |
| 175 | { |
| 176 | thumbPos = scrollbar->GetThumbPosition(); |
| 177 | } |
| 178 | |
| 179 | wxSize sizeTotal = scrollbar->GetClientSize(); |
| 180 | wxCoord *start, *width, length, arrow; |
| 181 | wxRect rect; |
| 182 | if ( scrollbar->IsVertical() ) |
| 183 | { |
| 184 | rect.x = 0; |
| 185 | rect.width = sizeTotal.x; |
| 186 | length = sizeTotal.y; |
| 187 | start = &rect.y; |
| 188 | width = &rect.height; |
| 189 | arrow = sizeArrow.y; |
| 190 | } |
| 191 | else // horizontal |
| 192 | { |
| 193 | rect.y = 0; |
| 194 | rect.height = sizeTotal.y; |
| 195 | length = sizeTotal.x; |
| 196 | start = &rect.x; |
| 197 | width = &rect.width; |
| 198 | arrow = sizeArrow.x; |
| 199 | } |
| 200 | |
| 201 | switch ( elem ) |
| 202 | { |
| 203 | case wxScrollBar::Element_Arrow_Line_1: |
| 204 | *start = 0; |
| 205 | *width = arrow; |
| 206 | break; |
| 207 | |
| 208 | case wxScrollBar::Element_Arrow_Line_2: |
| 209 | *start = length - arrow; |
| 210 | *width = arrow; |
| 211 | break; |
| 212 | |
| 213 | case wxScrollBar::Element_Arrow_Page_1: |
| 214 | case wxScrollBar::Element_Arrow_Page_2: |
| 215 | // we don't have them at all |
| 216 | break; |
| 217 | |
| 218 | case wxScrollBar::Element_Thumb: |
| 219 | case wxScrollBar::Element_Bar_1: |
| 220 | case wxScrollBar::Element_Bar_2: |
| 221 | // we need to calculate the thumb position - do it |
| 222 | { |
| 223 | length -= 2*arrow; |
| 224 | wxCoord thumbStart, thumbEnd; |
| 225 | int range = scrollbar->GetRange(); |
| 226 | if ( !range ) |
| 227 | { |
| 228 | thumbStart = |
| 229 | thumbEnd = 0; |
| 230 | } |
| 231 | else |
| 232 | { |
| 233 | StandardScrollBarThumbSize(length, |
| 234 | thumbPos, |
| 235 | scrollbar->GetThumbSize(), |
| 236 | range, |
| 237 | &thumbStart, |
| 238 | &thumbEnd); |
| 239 | } |
| 240 | |
| 241 | if ( elem == wxScrollBar::Element_Thumb ) |
| 242 | { |
| 243 | *start = thumbStart; |
| 244 | *width = thumbEnd - thumbStart; |
| 245 | } |
| 246 | else if ( elem == wxScrollBar::Element_Bar_1 ) |
| 247 | { |
| 248 | *start = 0; |
| 249 | *width = thumbStart; |
| 250 | } |
| 251 | else // elem == wxScrollBar::Element_Bar_2 |
| 252 | { |
| 253 | *start = thumbEnd; |
| 254 | *width = length - thumbEnd; |
| 255 | } |
| 256 | |
| 257 | // everything is relative to the start of the shaft so far |
| 258 | *start += arrow; |
| 259 | } |
| 260 | break; |
| 261 | |
| 262 | case wxScrollBar::Element_Max: |
| 263 | default: |
| 264 | wxFAIL_MSG( _T("unknown scrollbar element") ); |
| 265 | } |
| 266 | |
| 267 | return rect; |
| 268 | } |
| 269 | |
| 270 | /* static */ |
| 271 | wxCoord wxRenderer::StandardScrollBarSize(const wxScrollBar *scrollbar, |
| 272 | const wxSize& sizeArrowSB) |
| 273 | { |
| 274 | wxCoord sizeArrow, sizeTotal; |
| 275 | if ( scrollbar->GetWindowStyle() & wxVERTICAL ) |
| 276 | { |
| 277 | sizeArrow = sizeArrowSB.y; |
| 278 | sizeTotal = scrollbar->GetSize().y; |
| 279 | } |
| 280 | else // horizontal |
| 281 | { |
| 282 | sizeArrow = sizeArrowSB.x; |
| 283 | sizeTotal = scrollbar->GetSize().x; |
| 284 | } |
| 285 | |
| 286 | return sizeTotal - 2*sizeArrow; |
| 287 | } |
| 288 | |
| 289 | /* static */ |
| 290 | wxCoord wxRenderer::StandardScrollbarToPixel(const wxScrollBar *scrollbar, |
| 291 | int thumbPos, |
| 292 | const wxSize& sizeArrow) |
| 293 | { |
| 294 | int range = scrollbar->GetRange(); |
| 295 | if ( !range ) |
| 296 | { |
| 297 | // the only valid position anyhow |
| 298 | return 0; |
| 299 | } |
| 300 | |
| 301 | if ( thumbPos == -1 ) |
| 302 | { |
| 303 | // by default use the current thumb position |
| 304 | thumbPos = scrollbar->GetThumbPosition(); |
| 305 | } |
| 306 | |
| 307 | return ( thumbPos*StandardScrollBarSize(scrollbar, sizeArrow) ) / range |
| 308 | + (scrollbar->IsVertical() ? sizeArrow.y : sizeArrow.x); |
| 309 | } |
| 310 | |
| 311 | /* static */ |
| 312 | int wxRenderer::StandardPixelToScrollbar(const wxScrollBar *scrollbar, |
| 313 | wxCoord coord, |
| 314 | const wxSize& sizeArrow) |
| 315 | { |
| 316 | return ( (coord - (scrollbar->IsVertical() ? sizeArrow.y : sizeArrow.x)) * |
| 317 | scrollbar->GetRange() ) / |
| 318 | StandardScrollBarSize(scrollbar, sizeArrow); |
| 319 | } |
| 320 | |
| 321 | /* static */ |
| 322 | wxHitTest wxRenderer::StandardHitTestScrollbar(const wxScrollBar *scrollbar, |
| 323 | const wxPoint& pt, |
| 324 | const wxSize& sizeArrowSB) |
| 325 | { |
| 326 | // we only need to work with either x or y coord depending on the |
| 327 | // orientation, choose one (but still check the other one to verify if the |
| 328 | // mouse is in the window at all) |
| 329 | wxCoord coord, sizeArrow, sizeTotal; |
| 330 | wxSize size = scrollbar->GetSize(); |
| 331 | if ( scrollbar->GetWindowStyle() & wxVERTICAL ) |
| 332 | { |
| 333 | if ( pt.x < 0 || pt.x > size.x ) |
| 334 | return wxHT_NOWHERE; |
| 335 | |
| 336 | coord = pt.y; |
| 337 | sizeArrow = sizeArrowSB.y; |
| 338 | sizeTotal = size.y; |
| 339 | } |
| 340 | else // horizontal |
| 341 | { |
| 342 | if ( pt.y < 0 || pt.y > size.y ) |
| 343 | return wxHT_NOWHERE; |
| 344 | |
| 345 | coord = pt.x; |
| 346 | sizeArrow = sizeArrowSB.x; |
| 347 | sizeTotal = size.x; |
| 348 | } |
| 349 | |
| 350 | // test for the arrows first as it's faster |
| 351 | if ( coord < 0 || coord > sizeTotal ) |
| 352 | { |
| 353 | return wxHT_NOWHERE; |
| 354 | } |
| 355 | else if ( coord < sizeArrow ) |
| 356 | { |
| 357 | return wxHT_SCROLLBAR_ARROW_LINE_1; |
| 358 | } |
| 359 | else if ( coord > sizeTotal - sizeArrow ) |
| 360 | { |
| 361 | return wxHT_SCROLLBAR_ARROW_LINE_2; |
| 362 | } |
| 363 | else |
| 364 | { |
| 365 | // calculate the thumb position in pixels |
| 366 | sizeTotal -= 2*sizeArrow; |
| 367 | wxCoord thumbStart, thumbEnd; |
| 368 | int range = scrollbar->GetRange(); |
| 369 | if ( !range ) |
| 370 | { |
| 371 | // clicking the scrollbar without range has no effect |
| 372 | return wxHT_NOWHERE; |
| 373 | } |
| 374 | else |
| 375 | { |
| 376 | StandardScrollBarThumbSize(sizeTotal, |
| 377 | scrollbar->GetThumbPosition(), |
| 378 | scrollbar->GetThumbSize(), |
| 379 | range, |
| 380 | &thumbStart, |
| 381 | &thumbEnd); |
| 382 | } |
| 383 | |
| 384 | // now compare with the thumb position |
| 385 | coord -= sizeArrow; |
| 386 | if ( coord < thumbStart ) |
| 387 | return wxHT_SCROLLBAR_BAR_1; |
| 388 | else if ( coord > thumbEnd ) |
| 389 | return wxHT_SCROLLBAR_BAR_2; |
| 390 | else |
| 391 | return wxHT_SCROLLBAR_THUMB; |
| 392 | } |
| 393 | } |
| 394 | |
| 395 | wxRenderer::~wxRenderer() |
| 396 | { |
| 397 | } |
| 398 | |
| 399 | // ---------------------------------------------------------------------------- |
| 400 | // wxControlRenderer |
| 401 | // ---------------------------------------------------------------------------- |
| 402 | |
| 403 | wxControlRenderer::wxControlRenderer(wxWindow *window, |
| 404 | wxDC& dc, |
| 405 | wxRenderer *renderer) |
| 406 | : m_dc(dc) |
| 407 | { |
| 408 | m_window = window; |
| 409 | m_renderer = renderer; |
| 410 | |
| 411 | wxSize size = m_window->GetClientSize(); |
| 412 | m_rect.x = |
| 413 | m_rect.y = 0; |
| 414 | m_rect.width = size.x; |
| 415 | m_rect.height = size.y; |
| 416 | } |
| 417 | |
| 418 | void wxControlRenderer::DrawLabel(const wxBitmap& bitmap, |
| 419 | wxCoord marginX, wxCoord marginY) |
| 420 | { |
| 421 | m_dc.SetBackgroundMode(wxTRANSPARENT); |
| 422 | m_dc.SetFont(m_window->GetFont()); |
| 423 | m_dc.SetTextForeground(m_window->GetForegroundColour()); |
| 424 | |
| 425 | wxString label = m_window->GetLabel(); |
| 426 | if ( !label.empty() || bitmap.Ok() ) |
| 427 | { |
| 428 | wxRect rectLabel = m_rect; |
| 429 | if ( bitmap.Ok() ) |
| 430 | { |
| 431 | rectLabel.Inflate(-marginX, -marginY); |
| 432 | } |
| 433 | |
| 434 | wxControl *ctrl = wxStaticCast(m_window, wxControl); |
| 435 | |
| 436 | m_renderer->DrawButtonLabel(m_dc, |
| 437 | label, |
| 438 | bitmap, |
| 439 | rectLabel, |
| 440 | m_window->GetStateFlags(), |
| 441 | ctrl->GetAlignment(), |
| 442 | ctrl->GetAccelIndex()); |
| 443 | } |
| 444 | } |
| 445 | |
| 446 | void wxControlRenderer::DrawFrame() |
| 447 | { |
| 448 | m_dc.SetFont(m_window->GetFont()); |
| 449 | m_dc.SetTextForeground(m_window->GetForegroundColour()); |
| 450 | m_dc.SetTextBackground(m_window->GetBackgroundColour()); |
| 451 | |
| 452 | wxControl *ctrl = wxStaticCast(m_window, wxControl); |
| 453 | |
| 454 | m_renderer->DrawFrame(m_dc, |
| 455 | m_window->GetLabel(), |
| 456 | m_rect, |
| 457 | m_window->GetStateFlags(), |
| 458 | ctrl->GetAlignment(), |
| 459 | ctrl->GetAccelIndex()); |
| 460 | } |
| 461 | |
| 462 | void wxControlRenderer::DrawButtonBorder() |
| 463 | { |
| 464 | int flags = m_window->GetStateFlags(); |
| 465 | |
| 466 | m_renderer->DrawButtonBorder(m_dc, m_rect, flags, &m_rect); |
| 467 | |
| 468 | // Why do this here? |
| 469 | // m_renderer->DrawButtonSurface(m_dc, wxTHEME_BG_COLOUR(m_window), m_rect, flags ); |
| 470 | } |
| 471 | |
| 472 | void wxControlRenderer::DrawBitmap(const wxBitmap& bitmap) |
| 473 | { |
| 474 | int style = m_window->GetWindowStyle(); |
| 475 | DrawBitmap(m_dc, bitmap, m_rect, |
| 476 | style & wxALIGN_MASK, |
| 477 | style & wxBI_EXPAND ? wxEXPAND : wxSTRETCH_NOT); |
| 478 | } |
| 479 | |
| 480 | /* static */ |
| 481 | void wxControlRenderer::DrawBitmap(wxDC &dc, |
| 482 | const wxBitmap& bitmap, |
| 483 | const wxRect& rect, |
| 484 | int alignment, |
| 485 | wxStretch stretch) |
| 486 | { |
| 487 | // we may change the bitmap if we stretch it |
| 488 | wxBitmap bmp = bitmap; |
| 489 | if ( !bmp.Ok() ) |
| 490 | return; |
| 491 | |
| 492 | int width = bmp.GetWidth(), |
| 493 | height = bmp.GetHeight(); |
| 494 | |
| 495 | wxCoord x = 0, |
| 496 | y = 0; |
| 497 | if ( stretch & wxTILE ) |
| 498 | { |
| 499 | // tile the bitmap |
| 500 | for ( ; x < rect.width; x += width ) |
| 501 | { |
| 502 | for ( y = 0; y < rect.height; y += height ) |
| 503 | { |
| 504 | // no need to use mask here as we cover the entire window area |
| 505 | dc.DrawBitmap(bmp, x, y); |
| 506 | } |
| 507 | } |
| 508 | } |
| 509 | else if ( stretch & wxEXPAND ) |
| 510 | { |
| 511 | // stretch bitmap to fill the entire control |
| 512 | bmp = wxBitmap(wxImage(bmp.ConvertToImage()).Scale(rect.width, rect.height)); |
| 513 | } |
| 514 | else // not stretched, not tiled |
| 515 | { |
| 516 | if ( alignment & wxALIGN_RIGHT ) |
| 517 | { |
| 518 | x = rect.GetRight() - width; |
| 519 | } |
| 520 | else if ( alignment & wxALIGN_CENTRE ) |
| 521 | { |
| 522 | x = (rect.GetLeft() + rect.GetRight() - width + 1) / 2; |
| 523 | } |
| 524 | else // alignment & wxALIGN_LEFT |
| 525 | { |
| 526 | x = rect.GetLeft(); |
| 527 | } |
| 528 | |
| 529 | if ( alignment & wxALIGN_BOTTOM ) |
| 530 | { |
| 531 | y = rect.GetBottom() - height; |
| 532 | } |
| 533 | else if ( alignment & wxALIGN_CENTRE_VERTICAL ) |
| 534 | { |
| 535 | y = (rect.GetTop() + rect.GetBottom() - height + 1) / 2; |
| 536 | } |
| 537 | else // alignment & wxALIGN_TOP |
| 538 | { |
| 539 | y = rect.GetTop(); |
| 540 | } |
| 541 | } |
| 542 | |
| 543 | // do draw it |
| 544 | dc.DrawBitmap(bmp, x, y, TRUE /* use mask */); |
| 545 | } |
| 546 | |
| 547 | void wxControlRenderer::DrawScrollbar(const wxScrollBar *scrollbar, |
| 548 | int WXUNUSED(thumbPosOld)) |
| 549 | { |
| 550 | // we will only redraw the parts which must be redrawn and not everything |
| 551 | wxRegion rgnUpdate = scrollbar->GetUpdateRegion(); |
| 552 | |
| 553 | { |
| 554 | wxRect rectUpdate = rgnUpdate.GetBox(); |
| 555 | wxLogTrace(_T("scrollbar"), |
| 556 | _T("%s redraw: update box is (%d, %d)-(%d, %d)"), |
| 557 | scrollbar->IsVertical() ? _T("vert") : _T("horz"), |
| 558 | rectUpdate.GetLeft(), |
| 559 | rectUpdate.GetTop(), |
| 560 | rectUpdate.GetRight(), |
| 561 | rectUpdate.GetBottom()); |
| 562 | |
| 563 | #if 0 //def WXDEBUG_SCROLLBAR |
| 564 | static bool s_refreshDebug = FALSE; |
| 565 | if ( s_refreshDebug ) |
| 566 | { |
| 567 | wxClientDC dc(wxConstCast(scrollbar, wxScrollBar)); |
| 568 | dc.SetBrush(*wxRED_BRUSH); |
| 569 | dc.SetPen(*wxTRANSPARENT_PEN); |
| 570 | dc.DrawRectangle(rectUpdate); |
| 571 | |
| 572 | // under Unix we use "--sync" X option for this |
| 573 | #ifdef __WXMSW__ |
| 574 | ::GdiFlush(); |
| 575 | ::Sleep(200); |
| 576 | #endif // __WXMSW__ |
| 577 | } |
| 578 | #endif // WXDEBUG_SCROLLBAR |
| 579 | } |
| 580 | |
| 581 | wxOrientation orient = scrollbar->IsVertical() ? wxVERTICAL |
| 582 | : wxHORIZONTAL; |
| 583 | |
| 584 | // the shaft |
| 585 | for ( int nBar = 0; nBar < 2; nBar++ ) |
| 586 | { |
| 587 | wxScrollBar::Element elem = |
| 588 | (wxScrollBar::Element)(wxScrollBar::Element_Bar_1 + nBar); |
| 589 | |
| 590 | wxRect rectBar = m_renderer->GetScrollbarRect(scrollbar, elem); |
| 591 | |
| 592 | if ( rgnUpdate.Contains(rectBar) ) |
| 593 | { |
| 594 | wxLogTrace(_T("scrollbar"), |
| 595 | _T("drawing bar part %d at (%d, %d)-(%d, %d)"), |
| 596 | nBar + 1, |
| 597 | rectBar.GetLeft(), |
| 598 | rectBar.GetTop(), |
| 599 | rectBar.GetRight(), |
| 600 | rectBar.GetBottom()); |
| 601 | |
| 602 | m_renderer->DrawScrollbarShaft(m_dc, |
| 603 | orient, |
| 604 | rectBar, |
| 605 | scrollbar->GetState(elem)); |
| 606 | } |
| 607 | } |
| 608 | |
| 609 | // arrows |
| 610 | for ( int nArrow = 0; nArrow < 2; nArrow++ ) |
| 611 | { |
| 612 | wxScrollBar::Element elem = |
| 613 | (wxScrollBar::Element)(wxScrollBar::Element_Arrow_Line_1 + nArrow); |
| 614 | |
| 615 | wxRect rectArrow = m_renderer->GetScrollbarRect(scrollbar, elem); |
| 616 | if ( rgnUpdate.Contains(rectArrow) ) |
| 617 | { |
| 618 | wxLogTrace(_T("scrollbar"), |
| 619 | _T("drawing arrow %d at (%d, %d)-(%d, %d)"), |
| 620 | nArrow + 1, |
| 621 | rectArrow.GetLeft(), |
| 622 | rectArrow.GetTop(), |
| 623 | rectArrow.GetRight(), |
| 624 | rectArrow.GetBottom()); |
| 625 | |
| 626 | scrollbar->GetArrows().DrawArrow |
| 627 | ( |
| 628 | (wxScrollArrows::Arrow)nArrow, |
| 629 | m_dc, |
| 630 | rectArrow, |
| 631 | TRUE // draw a scrollbar arrow, not just an arrow |
| 632 | ); |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | // TODO: support for page arrows |
| 637 | |
| 638 | // and the thumb |
| 639 | wxScrollBar::Element elem = wxScrollBar::Element_Thumb; |
| 640 | wxRect rectThumb = m_renderer->GetScrollbarRect(scrollbar, elem); |
| 641 | if ( rectThumb.width && rectThumb.height && rgnUpdate.Contains(rectThumb) ) |
| 642 | { |
| 643 | wxLogTrace(_T("scrollbar"), |
| 644 | _T("drawing thumb at (%d, %d)-(%d, %d)"), |
| 645 | rectThumb.GetLeft(), |
| 646 | rectThumb.GetTop(), |
| 647 | rectThumb.GetRight(), |
| 648 | rectThumb.GetBottom()); |
| 649 | |
| 650 | m_renderer->DrawScrollbarThumb(m_dc, |
| 651 | orient, |
| 652 | rectThumb, |
| 653 | scrollbar->GetState(elem)); |
| 654 | } |
| 655 | } |
| 656 | |
| 657 | void wxControlRenderer::DrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) |
| 658 | { |
| 659 | wxASSERT_MSG( x1 == x2 || y1 == y2, |
| 660 | _T("line must be either horizontal or vertical") ); |
| 661 | |
| 662 | if ( x1 == x2 ) |
| 663 | m_renderer->DrawVerticalLine(m_dc, x1, y1, y2); |
| 664 | else // horizontal |
| 665 | m_renderer->DrawHorizontalLine(m_dc, y1, x1, x2); |
| 666 | } |
| 667 | |
| 668 | #if wxUSE_LISTBOX |
| 669 | |
| 670 | void wxControlRenderer::DrawItems(const wxListBox *lbox, |
| 671 | size_t itemFirst, size_t itemLast) |
| 672 | { |
| 673 | DoDrawItems(lbox, itemFirst, itemLast); |
| 674 | } |
| 675 | |
| 676 | void wxControlRenderer::DoDrawItems(const wxListBox *lbox, |
| 677 | size_t itemFirst, size_t itemLast, |
| 678 | #if wxUSE_CHECKLISTBOX |
| 679 | bool isCheckLbox) |
| 680 | #else |
| 681 | bool WXUNUSED(isCheckLbox)) |
| 682 | #endif |
| 683 | { |
| 684 | // prepare for the drawing: calc the initial position |
| 685 | wxCoord lineHeight = lbox->GetLineHeight(); |
| 686 | |
| 687 | // note that SetClippingRegion() needs the physical (unscrolled) |
| 688 | // coordinates while we use the logical (scrolled) ones for the drawing |
| 689 | // itself |
| 690 | wxRect rect; |
| 691 | wxSize size = lbox->GetClientSize(); |
| 692 | rect.width = size.x; |
| 693 | rect.height = size.y; |
| 694 | |
| 695 | // keep the text inside the client rect or we will overwrite the vertical |
| 696 | // scrollbar for the long strings |
| 697 | m_dc.SetClippingRegion(rect.x, rect.y, rect.width + 1, rect.height + 1); |
| 698 | |
| 699 | // adjust the rect position now |
| 700 | lbox->CalcScrolledPosition(rect.x, rect.y, &rect.x, &rect.y); |
| 701 | rect.y += itemFirst*lineHeight; |
| 702 | rect.height = lineHeight; |
| 703 | |
| 704 | // the rect should go to the right visible border so adjust the width if x |
| 705 | // is shifted (rightmost point should stay the same) |
| 706 | rect.width -= rect.x; |
| 707 | |
| 708 | // we'll keep the text colour unchanged |
| 709 | m_dc.SetTextForeground(lbox->GetForegroundColour()); |
| 710 | |
| 711 | // an item should have the focused rect only when the lbox has focus, so |
| 712 | // make sure that we never set wxCONTROL_FOCUSED flag if it doesn't |
| 713 | int itemCurrent = wxWindow::FindFocus() == (wxWindow *)lbox // cast needed |
| 714 | ? lbox->GetCurrentItem() |
| 715 | : -1; |
| 716 | for ( size_t n = itemFirst; n < itemLast; n++ ) |
| 717 | { |
| 718 | int flags = 0; |
| 719 | if ( (int)n == itemCurrent ) |
| 720 | flags |= wxCONTROL_FOCUSED; |
| 721 | if ( lbox->IsSelected(n) ) |
| 722 | flags |= wxCONTROL_SELECTED; |
| 723 | |
| 724 | #if wxUSE_CHECKLISTBOX |
| 725 | if ( isCheckLbox ) |
| 726 | { |
| 727 | wxCheckListBox *checklstbox = wxStaticCast(lbox, wxCheckListBox); |
| 728 | if ( checklstbox->IsChecked(n) ) |
| 729 | flags |= wxCONTROL_CHECKED; |
| 730 | |
| 731 | m_renderer->DrawCheckItem(m_dc, lbox->GetString(n), |
| 732 | wxNullBitmap, |
| 733 | rect, |
| 734 | flags); |
| 735 | } |
| 736 | else |
| 737 | #endif // wxUSE_CHECKLISTBOX |
| 738 | { |
| 739 | m_renderer->DrawItem(m_dc, lbox->GetString(n), rect, flags); |
| 740 | } |
| 741 | |
| 742 | rect.y += lineHeight; |
| 743 | } |
| 744 | } |
| 745 | |
| 746 | #endif // wxUSE_LISTBOX |
| 747 | |
| 748 | #if wxUSE_CHECKLISTBOX |
| 749 | |
| 750 | void wxControlRenderer::DrawCheckItems(const wxCheckListBox *lbox, |
| 751 | size_t itemFirst, size_t itemLast) |
| 752 | { |
| 753 | DoDrawItems(lbox, itemFirst, itemLast, TRUE); |
| 754 | } |
| 755 | |
| 756 | #endif // wxUSE_CHECKLISTBOX |
| 757 | |
| 758 | #if wxUSE_GAUGE |
| 759 | |
| 760 | void wxControlRenderer::DrawProgressBar(const wxGauge *gauge) |
| 761 | { |
| 762 | // draw background |
| 763 | m_dc.SetBrush(wxBrush(m_window->GetBackgroundColour(), wxSOLID)); |
| 764 | m_dc.SetPen(*wxTRANSPARENT_PEN); |
| 765 | m_dc.DrawRectangle(m_rect); |
| 766 | |
| 767 | int max = gauge->GetRange(); |
| 768 | if ( !max ) |
| 769 | { |
| 770 | // nothing to draw |
| 771 | return; |
| 772 | } |
| 773 | |
| 774 | // calc the filled rect |
| 775 | int pos = gauge->GetValue(); |
| 776 | int left = max - pos; |
| 777 | |
| 778 | wxRect rect = m_rect; |
| 779 | rect.Deflate(1); // FIXME this depends on the border width |
| 780 | |
| 781 | wxColour col = m_window->UseFgCol() ? m_window->GetForegroundColour() |
| 782 | : wxTHEME_COLOUR(GAUGE); |
| 783 | m_dc.SetBrush(wxBrush(col, wxSOLID)); |
| 784 | |
| 785 | if ( gauge->IsSmooth() ) |
| 786 | { |
| 787 | // just draw the rectangle in one go |
| 788 | if ( gauge->IsVertical() ) |
| 789 | { |
| 790 | // vert bars grow from bottom to top |
| 791 | wxCoord dy = ((rect.height - 1) * left) / max; |
| 792 | rect.y += dy; |
| 793 | rect.height -= dy; |
| 794 | } |
| 795 | else // horizontal |
| 796 | { |
| 797 | // grow from left to right |
| 798 | rect.width -= ((rect.width - 1) * left) / max; |
| 799 | } |
| 800 | |
| 801 | m_dc.DrawRectangle(rect); |
| 802 | } |
| 803 | else // discrete |
| 804 | { |
| 805 | wxSize sizeStep = m_renderer->GetProgressBarStep(); |
| 806 | int step = gauge->IsVertical() ? sizeStep.y : sizeStep.x; |
| 807 | |
| 808 | // we divide by it below! |
| 809 | wxCHECK_RET( step, _T("invalid wxGauge step") ); |
| 810 | |
| 811 | // round up to make the progress appear to start faster |
| 812 | int lenTotal = gauge->IsVertical() ? rect.height : rect.width; |
| 813 | int steps = ((lenTotal + step - 1) * pos) / (max * step); |
| 814 | |
| 815 | // calc the coords of one small rect |
| 816 | wxCoord *px, dx, dy; |
| 817 | if ( gauge->IsVertical() ) |
| 818 | { |
| 819 | // draw from bottom to top: so first set y to the bottom |
| 820 | rect.y += rect.height - 1; |
| 821 | |
| 822 | // then adjust the height |
| 823 | rect.height = step; |
| 824 | |
| 825 | // and then adjust y again to be what it should for the first rect |
| 826 | rect.y -= rect.height; |
| 827 | |
| 828 | // we are going up |
| 829 | step = -step; |
| 830 | |
| 831 | // remember that this will be the coord which will change |
| 832 | px = &rect.y; |
| 833 | |
| 834 | dy = 1; |
| 835 | dx = 0; |
| 836 | } |
| 837 | else // horizontal |
| 838 | { |
| 839 | // don't leave 2 empty pixels in the beginning |
| 840 | rect.x--; |
| 841 | |
| 842 | px = &rect.x; |
| 843 | rect.width = step; |
| 844 | |
| 845 | dy = 0; |
| 846 | dx = 1; |
| 847 | } |
| 848 | |
| 849 | for ( int n = 0; n < steps; n++ ) |
| 850 | { |
| 851 | wxRect rectSegment = rect; |
| 852 | rectSegment.Deflate(dx, dy); |
| 853 | |
| 854 | m_dc.DrawRectangle(rectSegment); |
| 855 | |
| 856 | *px += step; |
| 857 | if ( *px < 1 ) |
| 858 | { |
| 859 | // this can only happen for the last step of vertical gauge |
| 860 | rect.height = *px - step - 1; |
| 861 | *px = 1; |
| 862 | } |
| 863 | else if ( *px > lenTotal - step ) |
| 864 | { |
| 865 | // this can only happen for the last step of horizontal gauge |
| 866 | rect.width = lenTotal - *px - 1; |
| 867 | } |
| 868 | } |
| 869 | } |
| 870 | } |
| 871 | |
| 872 | #endif // wxUSE_GAUGE |
| 873 | |