| 1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: sashwin.cpp |
| 3 | // Purpose: wxSashWindow implementation. A sash window has an optional |
| 4 | // sash on each edge, allowing it to be dragged. An event |
| 5 | // is generated when the sash is released. |
| 6 | // Author: Julian Smart |
| 7 | // Modified by: |
| 8 | // Created: 01/02/97 |
| 9 | // RCS-ID: $Id$ |
| 10 | // Copyright: (c) Julian Smart |
| 11 | // Licence: wxWindows license |
| 12 | ///////////////////////////////////////////////////////////////////////////// |
| 13 | |
| 14 | #ifdef __GNUG__ |
| 15 | #pragma implementation "sashwin.h" |
| 16 | #endif |
| 17 | |
| 18 | // For compilers that support precompilation, includes "wx.h". |
| 19 | #include "wx/wxprec.h" |
| 20 | |
| 21 | #ifdef __BORLANDC__ |
| 22 | #pragma hdrstop |
| 23 | #endif |
| 24 | |
| 25 | #ifndef WX_PRECOMP |
| 26 | #include "wx/wx.h" |
| 27 | #endif |
| 28 | |
| 29 | #if wxUSE_SASH |
| 30 | |
| 31 | #include <math.h> |
| 32 | #include <stdlib.h> |
| 33 | |
| 34 | #include "wx/string.h" |
| 35 | #include "wx/dcscreen.h" |
| 36 | #include "wx/sashwin.h" |
| 37 | #include "wx/laywin.h" |
| 38 | |
| 39 | IMPLEMENT_DYNAMIC_CLASS(wxSashWindow, wxWindow) |
| 40 | IMPLEMENT_DYNAMIC_CLASS(wxSashEvent, wxCommandEvent) |
| 41 | |
| 42 | BEGIN_EVENT_TABLE(wxSashWindow, wxWindow) |
| 43 | EVT_PAINT(wxSashWindow::OnPaint) |
| 44 | EVT_SIZE(wxSashWindow::OnSize) |
| 45 | EVT_MOUSE_EVENTS(wxSashWindow::OnMouseEvent) |
| 46 | END_EVENT_TABLE() |
| 47 | |
| 48 | bool wxSashWindow::Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, |
| 49 | const wxSize& size, long style, const wxString& name) |
| 50 | { |
| 51 | return wxWindow::Create(parent, id, pos, size, style, name); |
| 52 | } |
| 53 | |
| 54 | wxSashWindow::~wxSashWindow() |
| 55 | { |
| 56 | delete m_sashCursorWE; |
| 57 | delete m_sashCursorNS; |
| 58 | } |
| 59 | |
| 60 | void wxSashWindow::Init() |
| 61 | { |
| 62 | m_draggingEdge = wxSASH_NONE; |
| 63 | m_dragMode = wxSASH_DRAG_NONE; |
| 64 | m_oldX = 0; |
| 65 | m_oldY = 0; |
| 66 | m_firstX = 0; |
| 67 | m_firstY = 0; |
| 68 | m_borderSize = 3; |
| 69 | m_extraBorderSize = 0; |
| 70 | m_minimumPaneSizeX = 0; |
| 71 | m_minimumPaneSizeY = 0; |
| 72 | m_maximumPaneSizeX = 10000; |
| 73 | m_maximumPaneSizeY = 10000; |
| 74 | m_sashCursorWE = new wxCursor(wxCURSOR_SIZEWE); |
| 75 | m_sashCursorNS = new wxCursor(wxCURSOR_SIZENS); |
| 76 | m_mouseCaptured = FALSE; |
| 77 | |
| 78 | // Eventually, we'll respond to colour change messages |
| 79 | InitColours(); |
| 80 | } |
| 81 | |
| 82 | void wxSashWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) |
| 83 | { |
| 84 | wxPaintDC dc(this); |
| 85 | |
| 86 | // if ( m_borderSize > 0 ) |
| 87 | DrawBorders(dc); |
| 88 | |
| 89 | DrawSashes(dc); |
| 90 | } |
| 91 | |
| 92 | void wxSashWindow::OnMouseEvent(wxMouseEvent& event) |
| 93 | { |
| 94 | wxCoord x, y; |
| 95 | event.GetPosition(&x, &y); |
| 96 | |
| 97 | wxSashEdgePosition sashHit = SashHitTest(x, y); |
| 98 | |
| 99 | // reset the cursor |
| 100 | #if defined(__WXMOTIF__) || defined(__WXGTK__) |
| 101 | // Not necessary and in fact inhibits proper cursor setting (JACS 8/2000) |
| 102 | //SetCursor(* wxSTANDARD_CURSOR); |
| 103 | #endif |
| 104 | #ifdef __WXMSW__ |
| 105 | SetCursor(wxNullCursor); |
| 106 | #endif |
| 107 | |
| 108 | if (event.LeftDown()) |
| 109 | { |
| 110 | CaptureMouse(); |
| 111 | m_mouseCaptured = TRUE; |
| 112 | |
| 113 | if ( sashHit != wxSASH_NONE ) |
| 114 | { |
| 115 | // Required for X to specify that |
| 116 | // that we wish to draw on top of all windows |
| 117 | // - and we optimise by specifying the area |
| 118 | // for creating the overlap window. |
| 119 | // Find the first frame or dialog and use this to specify |
| 120 | // the area to draw on. |
| 121 | wxWindow* parent = this; |
| 122 | |
| 123 | while (parent && !parent->IsKindOf(CLASSINFO(wxDialog)) && |
| 124 | !parent->IsKindOf(CLASSINFO(wxFrame))) |
| 125 | parent = parent->GetParent(); |
| 126 | |
| 127 | wxScreenDC::StartDrawingOnTop(parent); |
| 128 | |
| 129 | // We don't say we're dragging yet; we leave that |
| 130 | // decision for the Dragging() branch, to ensure |
| 131 | // the user has dragged a little bit. |
| 132 | m_dragMode = wxSASH_DRAG_LEFT_DOWN; |
| 133 | m_draggingEdge = sashHit; |
| 134 | m_firstX = x; |
| 135 | m_firstY = y; |
| 136 | |
| 137 | if ( (sashHit == wxSASH_LEFT) || (sashHit == wxSASH_RIGHT) ) |
| 138 | { |
| 139 | SetCursor(*m_sashCursorWE); |
| 140 | } |
| 141 | else |
| 142 | { |
| 143 | SetCursor(*m_sashCursorNS); |
| 144 | } |
| 145 | } |
| 146 | } |
| 147 | else if ( event.LeftUp() && m_dragMode == wxSASH_DRAG_LEFT_DOWN ) |
| 148 | { |
| 149 | // Wasn't a proper drag |
| 150 | if (m_mouseCaptured) |
| 151 | ReleaseMouse(); |
| 152 | m_mouseCaptured = FALSE; |
| 153 | |
| 154 | wxScreenDC::EndDrawingOnTop(); |
| 155 | m_dragMode = wxSASH_DRAG_NONE; |
| 156 | m_draggingEdge = wxSASH_NONE; |
| 157 | } |
| 158 | else if (event.LeftUp() && m_dragMode == wxSASH_DRAG_DRAGGING) |
| 159 | { |
| 160 | // We can stop dragging now and see what we've got. |
| 161 | m_dragMode = wxSASH_DRAG_NONE; |
| 162 | if (m_mouseCaptured) |
| 163 | ReleaseMouse(); |
| 164 | m_mouseCaptured = FALSE; |
| 165 | |
| 166 | // Erase old tracker |
| 167 | DrawSashTracker(m_draggingEdge, m_oldX, m_oldY); |
| 168 | |
| 169 | // End drawing on top (frees the window used for drawing |
| 170 | // over the screen) |
| 171 | wxScreenDC::EndDrawingOnTop(); |
| 172 | |
| 173 | int w, h; |
| 174 | GetSize(&w, &h); |
| 175 | int xp, yp; |
| 176 | GetPosition(&xp, &yp); |
| 177 | |
| 178 | wxSashEdgePosition edge = m_draggingEdge; |
| 179 | m_draggingEdge = wxSASH_NONE; |
| 180 | |
| 181 | wxRect dragRect; |
| 182 | wxSashDragStatus status = wxSASH_STATUS_OK; |
| 183 | |
| 184 | // the new height and width of the window - if -1, it didn't change |
| 185 | int newHeight = -1, |
| 186 | newWidth = -1; |
| 187 | |
| 188 | // NB: x and y may be negative and they're relative to the sash window |
| 189 | // upper left corner, while xp and yp are expressed in the parent |
| 190 | // window system of coordinates, so adjust them! After this |
| 191 | // adjustment, all coordinates are relative to the parent window. |
| 192 | y += yp; |
| 193 | x += xp; |
| 194 | |
| 195 | switch (edge) |
| 196 | { |
| 197 | case wxSASH_TOP: |
| 198 | if ( y > yp + h ) |
| 199 | { |
| 200 | // top sash shouldn't get below the bottom one |
| 201 | status = wxSASH_STATUS_OUT_OF_RANGE; |
| 202 | } |
| 203 | else |
| 204 | { |
| 205 | newHeight = h - (y - yp); |
| 206 | } |
| 207 | break; |
| 208 | |
| 209 | case wxSASH_BOTTOM: |
| 210 | if ( y < yp ) |
| 211 | { |
| 212 | // bottom sash shouldn't get above the top one |
| 213 | status = wxSASH_STATUS_OUT_OF_RANGE; |
| 214 | } |
| 215 | else |
| 216 | { |
| 217 | newHeight = y - yp; |
| 218 | } |
| 219 | break; |
| 220 | |
| 221 | case wxSASH_LEFT: |
| 222 | if ( x > xp + w ) |
| 223 | { |
| 224 | // left sash shouldn't get beyond the right one |
| 225 | status = wxSASH_STATUS_OUT_OF_RANGE; |
| 226 | } |
| 227 | else |
| 228 | { |
| 229 | newWidth = w - (x - xp); |
| 230 | } |
| 231 | break; |
| 232 | |
| 233 | case wxSASH_RIGHT: |
| 234 | if ( x < xp ) |
| 235 | { |
| 236 | // and the right sash, finally, shouldn't be beyond the |
| 237 | // left one |
| 238 | status = wxSASH_STATUS_OUT_OF_RANGE; |
| 239 | } |
| 240 | else |
| 241 | { |
| 242 | newWidth = x - xp; |
| 243 | } |
| 244 | break; |
| 245 | |
| 246 | case wxSASH_NONE: |
| 247 | // can this happen at all? |
| 248 | break; |
| 249 | } |
| 250 | |
| 251 | if ( newHeight == -1 ) |
| 252 | { |
| 253 | // didn't change |
| 254 | newHeight = h; |
| 255 | } |
| 256 | else |
| 257 | { |
| 258 | // make sure it's in m_minimumPaneSizeY..m_maximumPaneSizeY range |
| 259 | newHeight = wxMax(newHeight, m_minimumPaneSizeY); |
| 260 | newHeight = wxMin(newHeight, m_maximumPaneSizeY); |
| 261 | } |
| 262 | |
| 263 | if ( newWidth == -1 ) |
| 264 | { |
| 265 | // didn't change |
| 266 | newWidth = w; |
| 267 | } |
| 268 | else |
| 269 | { |
| 270 | // make sure it's in m_minimumPaneSizeY..m_maximumPaneSizeY range |
| 271 | newWidth = wxMax(newWidth, m_minimumPaneSizeX); |
| 272 | newWidth = wxMin(newWidth, m_maximumPaneSizeX); |
| 273 | } |
| 274 | |
| 275 | dragRect = wxRect(x, y, newWidth, newHeight); |
| 276 | |
| 277 | wxSashEvent event(GetId(), edge); |
| 278 | event.SetEventObject(this); |
| 279 | event.SetDragStatus(status); |
| 280 | event.SetDragRect(dragRect); |
| 281 | GetEventHandler()->ProcessEvent(event); |
| 282 | } |
| 283 | else if ( event.LeftUp() ) |
| 284 | { |
| 285 | if (m_mouseCaptured) |
| 286 | ReleaseMouse(); |
| 287 | m_mouseCaptured = FALSE; |
| 288 | } |
| 289 | else if (event.Moving() && !event.Dragging()) |
| 290 | { |
| 291 | // Just change the cursor if required |
| 292 | if ( sashHit != wxSASH_NONE ) |
| 293 | { |
| 294 | if ( (sashHit == wxSASH_LEFT) || (sashHit == wxSASH_RIGHT) ) |
| 295 | { |
| 296 | SetCursor(*m_sashCursorWE); |
| 297 | } |
| 298 | else |
| 299 | { |
| 300 | SetCursor(*m_sashCursorNS); |
| 301 | } |
| 302 | } |
| 303 | else |
| 304 | { |
| 305 | SetCursor(wxNullCursor); |
| 306 | } |
| 307 | } |
| 308 | else if ( event.Dragging() && |
| 309 | ((m_dragMode == wxSASH_DRAG_DRAGGING) || |
| 310 | (m_dragMode == wxSASH_DRAG_LEFT_DOWN)) ) |
| 311 | { |
| 312 | if ( (m_draggingEdge == wxSASH_LEFT) || (m_draggingEdge == wxSASH_RIGHT) ) |
| 313 | { |
| 314 | SetCursor(*m_sashCursorWE); |
| 315 | } |
| 316 | else |
| 317 | { |
| 318 | SetCursor(*m_sashCursorNS); |
| 319 | } |
| 320 | |
| 321 | if (m_dragMode == wxSASH_DRAG_LEFT_DOWN) |
| 322 | { |
| 323 | m_dragMode = wxSASH_DRAG_DRAGGING; |
| 324 | DrawSashTracker(m_draggingEdge, x, y); |
| 325 | } |
| 326 | else |
| 327 | { |
| 328 | if ( m_dragMode == wxSASH_DRAG_DRAGGING ) |
| 329 | { |
| 330 | // Erase old tracker |
| 331 | DrawSashTracker(m_draggingEdge, m_oldX, m_oldY); |
| 332 | |
| 333 | // Draw new one |
| 334 | DrawSashTracker(m_draggingEdge, x, y); |
| 335 | } |
| 336 | } |
| 337 | m_oldX = x; |
| 338 | m_oldY = y; |
| 339 | } |
| 340 | else if ( event.LeftDClick() ) |
| 341 | { |
| 342 | // Nothing |
| 343 | } |
| 344 | else |
| 345 | { |
| 346 | } |
| 347 | } |
| 348 | |
| 349 | void wxSashWindow::OnSize(wxSizeEvent& WXUNUSED(event)) |
| 350 | { |
| 351 | SizeWindows(); |
| 352 | } |
| 353 | |
| 354 | wxSashEdgePosition wxSashWindow::SashHitTest(int x, int y, int WXUNUSED(tolerance)) |
| 355 | { |
| 356 | int cx, cy; |
| 357 | GetClientSize(& cx, & cy); |
| 358 | |
| 359 | int i; |
| 360 | for (i = 0; i < 4; i++) |
| 361 | { |
| 362 | wxSashEdge& edge = m_sashes[i]; |
| 363 | wxSashEdgePosition position = (wxSashEdgePosition) i ; |
| 364 | |
| 365 | if (edge.m_show) |
| 366 | { |
| 367 | switch (position) |
| 368 | { |
| 369 | case wxSASH_TOP: |
| 370 | { |
| 371 | if (y >= 0 && y <= GetEdgeMargin(position)) |
| 372 | return wxSASH_TOP; |
| 373 | break; |
| 374 | } |
| 375 | case wxSASH_RIGHT: |
| 376 | { |
| 377 | if ((x >= cx - GetEdgeMargin(position)) && (x <= cx)) |
| 378 | return wxSASH_RIGHT; |
| 379 | break; |
| 380 | } |
| 381 | case wxSASH_BOTTOM: |
| 382 | { |
| 383 | if ((y >= cy - GetEdgeMargin(position)) && (y <= cy)) |
| 384 | return wxSASH_BOTTOM; |
| 385 | break; |
| 386 | } |
| 387 | case wxSASH_LEFT: |
| 388 | { |
| 389 | if ((x <= GetEdgeMargin(position)) && (x >= 0)) |
| 390 | return wxSASH_LEFT; |
| 391 | break; |
| 392 | } |
| 393 | case wxSASH_NONE: |
| 394 | { |
| 395 | break; |
| 396 | } |
| 397 | } |
| 398 | } |
| 399 | } |
| 400 | return wxSASH_NONE; |
| 401 | } |
| 402 | |
| 403 | // Draw 3D effect borders |
| 404 | void wxSashWindow::DrawBorders(wxDC& dc) |
| 405 | { |
| 406 | int w, h; |
| 407 | GetClientSize(&w, &h); |
| 408 | |
| 409 | wxPen mediumShadowPen(m_mediumShadowColour, 1, wxSOLID); |
| 410 | wxPen darkShadowPen(m_darkShadowColour, 1, wxSOLID); |
| 411 | wxPen lightShadowPen(m_lightShadowColour, 1, wxSOLID); |
| 412 | wxPen hilightPen(m_hilightColour, 1, wxSOLID); |
| 413 | |
| 414 | if ( GetWindowStyleFlag() & wxSW_3DBORDER ) |
| 415 | { |
| 416 | dc.SetPen(mediumShadowPen); |
| 417 | dc.DrawLine(0, 0, w-1, 0); |
| 418 | dc.DrawLine(0, 0, 0, h - 1); |
| 419 | |
| 420 | dc.SetPen(darkShadowPen); |
| 421 | dc.DrawLine(1, 1, w-2, 1); |
| 422 | dc.DrawLine(1, 1, 1, h-2); |
| 423 | |
| 424 | dc.SetPen(hilightPen); |
| 425 | dc.DrawLine(0, h-1, w-1, h-1); |
| 426 | dc.DrawLine(w-1, 0, w-1, h); // Surely the maximum y pos. should be h - 1. |
| 427 | /// Anyway, h is required for MSW. |
| 428 | |
| 429 | dc.SetPen(lightShadowPen); |
| 430 | dc.DrawLine(w-2, 1, w-2, h-2); // Right hand side |
| 431 | dc.DrawLine(1, h-2, w-1, h-2); // Bottom |
| 432 | } |
| 433 | else if ( GetWindowStyleFlag() & wxSW_BORDER ) |
| 434 | { |
| 435 | dc.SetBrush(*wxTRANSPARENT_BRUSH); |
| 436 | dc.SetPen(*wxBLACK_PEN); |
| 437 | dc.DrawRectangle(0, 0, w-1, h-1); |
| 438 | } |
| 439 | |
| 440 | dc.SetPen(wxNullPen); |
| 441 | dc.SetBrush(wxNullBrush); |
| 442 | } |
| 443 | |
| 444 | void wxSashWindow::DrawSashes(wxDC& dc) |
| 445 | { |
| 446 | int i; |
| 447 | for (i = 0; i < 4; i++) |
| 448 | if (m_sashes[i].m_show) |
| 449 | DrawSash((wxSashEdgePosition) i, dc); |
| 450 | } |
| 451 | |
| 452 | // Draw the sash |
| 453 | void wxSashWindow::DrawSash(wxSashEdgePosition edge, wxDC& dc) |
| 454 | { |
| 455 | int w, h; |
| 456 | GetClientSize(&w, &h); |
| 457 | |
| 458 | wxPen facePen(m_faceColour, 1, wxSOLID); |
| 459 | wxBrush faceBrush(m_faceColour, wxSOLID); |
| 460 | wxPen mediumShadowPen(m_mediumShadowColour, 1, wxSOLID); |
| 461 | wxPen darkShadowPen(m_darkShadowColour, 1, wxSOLID); |
| 462 | wxPen lightShadowPen(m_lightShadowColour, 1, wxSOLID); |
| 463 | wxPen hilightPen(m_hilightColour, 1, wxSOLID); |
| 464 | wxPen blackPen(wxColour(0, 0, 0), 1, wxSOLID); |
| 465 | wxPen whitePen(wxColour(255, 255, 255), 1, wxSOLID); |
| 466 | |
| 467 | if ( edge == wxSASH_LEFT || edge == wxSASH_RIGHT ) |
| 468 | { |
| 469 | int sashPosition = 0; |
| 470 | if (edge == wxSASH_LEFT) |
| 471 | sashPosition = 0; |
| 472 | else |
| 473 | sashPosition = w - GetEdgeMargin(edge); |
| 474 | |
| 475 | dc.SetPen(facePen); |
| 476 | dc.SetBrush(faceBrush); |
| 477 | dc.DrawRectangle(sashPosition, 0, GetEdgeMargin(edge), h); |
| 478 | |
| 479 | if (GetWindowStyleFlag() & wxSW_3DSASH) |
| 480 | { |
| 481 | if (edge == wxSASH_LEFT) |
| 482 | { |
| 483 | // Draw a dark grey line on the left to indicate that the |
| 484 | // sash is raised |
| 485 | dc.SetPen(mediumShadowPen); |
| 486 | dc.DrawLine(GetEdgeMargin(edge), 0, GetEdgeMargin(edge), h); |
| 487 | } |
| 488 | else |
| 489 | { |
| 490 | // Draw a highlight line on the right to indicate that the |
| 491 | // sash is raised |
| 492 | dc.SetPen(hilightPen); |
| 493 | dc.DrawLine(w - GetEdgeMargin(edge), 0, w - GetEdgeMargin(edge), h); |
| 494 | } |
| 495 | } |
| 496 | } |
| 497 | else // top or bottom |
| 498 | { |
| 499 | int sashPosition = 0; |
| 500 | if (edge == wxSASH_TOP) |
| 501 | sashPosition = 0; |
| 502 | else |
| 503 | sashPosition = h - GetEdgeMargin(edge); |
| 504 | |
| 505 | dc.SetPen(facePen); |
| 506 | dc.SetBrush(faceBrush); |
| 507 | dc.DrawRectangle(0, sashPosition, w, GetEdgeMargin(edge)); |
| 508 | |
| 509 | if (GetWindowStyleFlag() & wxSW_3DSASH) |
| 510 | { |
| 511 | if (edge == wxSASH_BOTTOM) |
| 512 | { |
| 513 | // Draw a highlight line on the bottom to indicate that the |
| 514 | // sash is raised |
| 515 | dc.SetPen(hilightPen); |
| 516 | dc.DrawLine(0, h - GetEdgeMargin(edge), w, h - GetEdgeMargin(edge)); |
| 517 | } |
| 518 | else |
| 519 | { |
| 520 | // Draw a drak grey line on the top to indicate that the |
| 521 | // sash is raised |
| 522 | dc.SetPen(mediumShadowPen); |
| 523 | dc.DrawLine(1, GetEdgeMargin(edge), w-1, GetEdgeMargin(edge)); |
| 524 | } |
| 525 | } |
| 526 | } |
| 527 | |
| 528 | dc.SetPen(wxNullPen); |
| 529 | dc.SetBrush(wxNullBrush); |
| 530 | } |
| 531 | |
| 532 | // Draw the sash tracker (for whilst moving the sash) |
| 533 | void wxSashWindow::DrawSashTracker(wxSashEdgePosition edge, int x, int y) |
| 534 | { |
| 535 | int w, h; |
| 536 | GetClientSize(&w, &h); |
| 537 | |
| 538 | wxScreenDC screenDC; |
| 539 | int x1, y1; |
| 540 | int x2, y2; |
| 541 | |
| 542 | if ( edge == wxSASH_LEFT || edge == wxSASH_RIGHT ) |
| 543 | { |
| 544 | x1 = x; y1 = 2; |
| 545 | x2 = x; y2 = h-2; |
| 546 | |
| 547 | if ( (edge == wxSASH_LEFT) && (x1 > w) ) |
| 548 | { |
| 549 | x1 = w; x2 = w; |
| 550 | } |
| 551 | else if ( (edge == wxSASH_RIGHT) && (x1 < 0) ) |
| 552 | { |
| 553 | x1 = 0; x2 = 0; |
| 554 | } |
| 555 | } |
| 556 | else |
| 557 | { |
| 558 | x1 = 2; y1 = y; |
| 559 | x2 = w-2; y2 = y; |
| 560 | |
| 561 | if ( (edge == wxSASH_TOP) && (y1 > h) ) |
| 562 | { |
| 563 | y1 = h; |
| 564 | y2 = h; |
| 565 | } |
| 566 | else if ( (edge == wxSASH_BOTTOM) && (y1 < 0) ) |
| 567 | { |
| 568 | y1 = 0; |
| 569 | y2 = 0; |
| 570 | } |
| 571 | } |
| 572 | |
| 573 | ClientToScreen(&x1, &y1); |
| 574 | ClientToScreen(&x2, &y2); |
| 575 | |
| 576 | wxPen sashTrackerPen(*wxBLACK, 2, wxSOLID); |
| 577 | |
| 578 | screenDC.SetLogicalFunction(wxINVERT); |
| 579 | screenDC.SetPen(sashTrackerPen); |
| 580 | screenDC.SetBrush(*wxTRANSPARENT_BRUSH); |
| 581 | |
| 582 | screenDC.DrawLine(x1, y1, x2, y2); |
| 583 | |
| 584 | screenDC.SetLogicalFunction(wxCOPY); |
| 585 | |
| 586 | screenDC.SetPen(wxNullPen); |
| 587 | screenDC.SetBrush(wxNullBrush); |
| 588 | } |
| 589 | |
| 590 | // Position and size subwindows. |
| 591 | // Note that the border size applies to each subwindow, not |
| 592 | // including the edges next to the sash. |
| 593 | void wxSashWindow::SizeWindows() |
| 594 | { |
| 595 | int cw, ch; |
| 596 | GetClientSize(&cw, &ch); |
| 597 | |
| 598 | if (GetChildren().Number() == 1) |
| 599 | { |
| 600 | wxWindow* child = (wxWindow*) (GetChildren().First()->Data()); |
| 601 | |
| 602 | int x = 0; |
| 603 | int y = 0; |
| 604 | int width = cw; |
| 605 | int height = ch; |
| 606 | |
| 607 | // Top |
| 608 | if (m_sashes[0].m_show) |
| 609 | { |
| 610 | y = m_borderSize; |
| 611 | height -= m_borderSize; |
| 612 | } |
| 613 | y += m_extraBorderSize; |
| 614 | |
| 615 | // Left |
| 616 | if (m_sashes[3].m_show) |
| 617 | { |
| 618 | x = m_borderSize; |
| 619 | width -= m_borderSize; |
| 620 | } |
| 621 | x += m_extraBorderSize; |
| 622 | |
| 623 | // Right |
| 624 | if (m_sashes[1].m_show) |
| 625 | { |
| 626 | width -= m_borderSize; |
| 627 | } |
| 628 | width -= 2*m_extraBorderSize; |
| 629 | |
| 630 | // Bottom |
| 631 | if (m_sashes[2].m_show) |
| 632 | { |
| 633 | height -= m_borderSize; |
| 634 | } |
| 635 | height -= 2*m_extraBorderSize; |
| 636 | |
| 637 | child->SetSize(x, y, width, height); |
| 638 | } |
| 639 | else if (GetChildren().Number() > 1) |
| 640 | { |
| 641 | // Perhaps multiple children are themselves sash windows. |
| 642 | // TODO: this doesn't really work because the subwindows sizes/positions |
| 643 | // must be set to leave a gap for the parent's sash (hit-test and decorations). |
| 644 | // Perhaps we can allow for this within LayoutWindow, testing whether the parent |
| 645 | // is a sash window, and if so, allowing some space for the edges. |
| 646 | wxLayoutAlgorithm layout; |
| 647 | layout.LayoutWindow(this); |
| 648 | } |
| 649 | |
| 650 | wxClientDC dc(this); |
| 651 | DrawBorders(dc); |
| 652 | DrawSashes(dc); |
| 653 | } |
| 654 | |
| 655 | // Initialize colours |
| 656 | void wxSashWindow::InitColours() |
| 657 | { |
| 658 | // Shadow colours |
| 659 | #ifndef __WIN16__ |
| 660 | m_faceColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE); |
| 661 | m_mediumShadowColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW); |
| 662 | m_darkShadowColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DDKSHADOW); |
| 663 | m_lightShadowColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT); |
| 664 | m_hilightColour = wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT); |
| 665 | #else |
| 666 | m_faceColour = *(wxTheColourDatabase->FindColour("LIGHT GREY")); |
| 667 | m_mediumShadowColour = *(wxTheColourDatabase->FindColour("GREY")); |
| 668 | m_darkShadowColour = *(wxTheColourDatabase->FindColour("BLACK")); |
| 669 | m_lightShadowColour = *(wxTheColourDatabase->FindColour("LIGHT GREY")); |
| 670 | m_hilightColour = *(wxTheColourDatabase->FindColour("WHITE")); |
| 671 | #endif |
| 672 | } |
| 673 | |
| 674 | void wxSashWindow::SetSashVisible(wxSashEdgePosition edge, bool sash) |
| 675 | { |
| 676 | m_sashes[edge].m_show = sash; |
| 677 | if (sash) |
| 678 | m_sashes[edge].m_margin = m_borderSize; |
| 679 | else |
| 680 | m_sashes[edge].m_margin = 0; |
| 681 | } |
| 682 | |
| 683 | #endif // wxUSE_SASH |