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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: src/generic/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 licence | |
12 | ///////////////////////////////////////////////////////////////////////////// | |
13 | ||
14 | // For compilers that support precompilation, includes "wx.h". | |
15 | #include "wx/wxprec.h" | |
16 | ||
17 | #ifdef __BORLANDC__ | |
18 | #pragma hdrstop | |
19 | #endif | |
20 | ||
21 | #if wxUSE_SASH | |
22 | ||
23 | #include "wx/sashwin.h" | |
24 | ||
25 | #ifndef WX_PRECOMP | |
26 | #include "wx/dialog.h" | |
27 | #include "wx/frame.h" | |
28 | #include "wx/settings.h" | |
29 | #include "wx/dcclient.h" | |
30 | #include "wx/dcscreen.h" | |
31 | #include "wx/math.h" | |
32 | #endif | |
33 | ||
34 | #include <stdlib.h> | |
35 | ||
36 | #include "wx/laywin.h" | |
37 | ||
38 | DEFINE_EVENT_TYPE(wxEVT_SASH_DRAGGED) | |
39 | ||
40 | IMPLEMENT_DYNAMIC_CLASS(wxSashWindow, wxWindow) | |
41 | IMPLEMENT_DYNAMIC_CLASS(wxSashEvent, wxCommandEvent) | |
42 | ||
43 | BEGIN_EVENT_TABLE(wxSashWindow, wxWindow) | |
44 | EVT_PAINT(wxSashWindow::OnPaint) | |
45 | EVT_SIZE(wxSashWindow::OnSize) | |
46 | EVT_MOUSE_EVENTS(wxSashWindow::OnMouseEvent) | |
47 | #if defined( __WXMSW__ ) || defined( __WXMAC__) | |
48 | EVT_SET_CURSOR(wxSashWindow::OnSetCursor) | |
49 | #endif // __WXMSW__ || __WXMAC__ | |
50 | ||
51 | END_EVENT_TABLE() | |
52 | ||
53 | bool wxSashWindow::Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, | |
54 | const wxSize& size, long style, const wxString& name) | |
55 | { | |
56 | return wxWindow::Create(parent, id, pos, size, style, name); | |
57 | } | |
58 | ||
59 | wxSashWindow::~wxSashWindow() | |
60 | { | |
61 | delete m_sashCursorWE; | |
62 | delete m_sashCursorNS; | |
63 | } | |
64 | ||
65 | void wxSashWindow::Init() | |
66 | { | |
67 | m_draggingEdge = wxSASH_NONE; | |
68 | m_dragMode = wxSASH_DRAG_NONE; | |
69 | m_oldX = 0; | |
70 | m_oldY = 0; | |
71 | m_firstX = 0; | |
72 | m_firstY = 0; | |
73 | m_borderSize = 3; | |
74 | m_extraBorderSize = 0; | |
75 | m_minimumPaneSizeX = 0; | |
76 | m_minimumPaneSizeY = 0; | |
77 | m_maximumPaneSizeX = 10000; | |
78 | m_maximumPaneSizeY = 10000; | |
79 | m_sashCursorWE = new wxCursor(wxCURSOR_SIZEWE); | |
80 | m_sashCursorNS = new wxCursor(wxCURSOR_SIZENS); | |
81 | m_mouseCaptured = false; | |
82 | m_currentCursor = NULL; | |
83 | ||
84 | // Eventually, we'll respond to colour change messages | |
85 | InitColours(); | |
86 | } | |
87 | ||
88 | void wxSashWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) | |
89 | { | |
90 | wxPaintDC dc(this); | |
91 | ||
92 | DrawBorders(dc); | |
93 | DrawSashes(dc); | |
94 | } | |
95 | ||
96 | void wxSashWindow::OnMouseEvent(wxMouseEvent& event) | |
97 | { | |
98 | wxCoord x = 0, y = 0; | |
99 | event.GetPosition(&x, &y); | |
100 | ||
101 | wxSashEdgePosition sashHit = SashHitTest(x, y); | |
102 | ||
103 | if (event.LeftDown()) | |
104 | { | |
105 | CaptureMouse(); | |
106 | m_mouseCaptured = true; | |
107 | ||
108 | if ( sashHit != wxSASH_NONE ) | |
109 | { | |
110 | // Required for X to specify that | |
111 | // that we wish to draw on top of all windows | |
112 | // - and we optimise by specifying the area | |
113 | // for creating the overlap window. | |
114 | // Find the first frame or dialog and use this to specify | |
115 | // the area to draw on. | |
116 | wxWindow* parent = this; | |
117 | ||
118 | while (parent && !parent->IsKindOf(CLASSINFO(wxDialog)) && | |
119 | !parent->IsKindOf(CLASSINFO(wxFrame))) | |
120 | parent = parent->GetParent(); | |
121 | ||
122 | wxScreenDC::StartDrawingOnTop(parent); | |
123 | ||
124 | // We don't say we're dragging yet; we leave that | |
125 | // decision for the Dragging() branch, to ensure | |
126 | // the user has dragged a little bit. | |
127 | m_dragMode = wxSASH_DRAG_LEFT_DOWN; | |
128 | m_draggingEdge = sashHit; | |
129 | m_firstX = x; | |
130 | m_firstY = y; | |
131 | ||
132 | if ( (sashHit == wxSASH_LEFT) || (sashHit == wxSASH_RIGHT) ) | |
133 | { | |
134 | if (m_currentCursor != m_sashCursorWE) | |
135 | { | |
136 | SetCursor(*m_sashCursorWE); | |
137 | } | |
138 | m_currentCursor = m_sashCursorWE; | |
139 | } | |
140 | else | |
141 | { | |
142 | if (m_currentCursor != m_sashCursorNS) | |
143 | { | |
144 | SetCursor(*m_sashCursorNS); | |
145 | } | |
146 | m_currentCursor = m_sashCursorNS; | |
147 | } | |
148 | } | |
149 | } | |
150 | else if ( event.LeftUp() && m_dragMode == wxSASH_DRAG_LEFT_DOWN ) | |
151 | { | |
152 | // Wasn't a proper drag | |
153 | if (m_mouseCaptured) | |
154 | ReleaseMouse(); | |
155 | m_mouseCaptured = false; | |
156 | ||
157 | wxScreenDC::EndDrawingOnTop(); | |
158 | m_dragMode = wxSASH_DRAG_NONE; | |
159 | m_draggingEdge = wxSASH_NONE; | |
160 | } | |
161 | else if (event.LeftUp() && m_dragMode == wxSASH_DRAG_DRAGGING) | |
162 | { | |
163 | // We can stop dragging now and see what we've got. | |
164 | m_dragMode = wxSASH_DRAG_NONE; | |
165 | if (m_mouseCaptured) | |
166 | ReleaseMouse(); | |
167 | m_mouseCaptured = false; | |
168 | ||
169 | // Erase old tracker | |
170 | DrawSashTracker(m_draggingEdge, m_oldX, m_oldY); | |
171 | ||
172 | // End drawing on top (frees the window used for drawing | |
173 | // over the screen) | |
174 | wxScreenDC::EndDrawingOnTop(); | |
175 | ||
176 | int w, h; | |
177 | GetSize(&w, &h); | |
178 | int xp, yp; | |
179 | GetPosition(&xp, &yp); | |
180 | ||
181 | wxSashEdgePosition edge = m_draggingEdge; | |
182 | m_draggingEdge = wxSASH_NONE; | |
183 | ||
184 | wxRect dragRect; | |
185 | wxSashDragStatus status = wxSASH_STATUS_OK; | |
186 | ||
187 | // the new height and width of the window - if -1, it didn't change | |
188 | int newHeight = wxDefaultCoord, | |
189 | newWidth = wxDefaultCoord; | |
190 | ||
191 | // NB: x and y may be negative and they're relative to the sash window | |
192 | // upper left corner, while xp and yp are expressed in the parent | |
193 | // window system of coordinates, so adjust them! After this | |
194 | // adjustment, all coordinates are relative to the parent window. | |
195 | y += yp; | |
196 | x += xp; | |
197 | ||
198 | switch (edge) | |
199 | { | |
200 | case wxSASH_TOP: | |
201 | if ( y > yp + h ) | |
202 | { | |
203 | // top sash shouldn't get below the bottom one | |
204 | status = wxSASH_STATUS_OUT_OF_RANGE; | |
205 | } | |
206 | else | |
207 | { | |
208 | newHeight = h - (y - yp); | |
209 | } | |
210 | break; | |
211 | ||
212 | case wxSASH_BOTTOM: | |
213 | if ( y < yp ) | |
214 | { | |
215 | // bottom sash shouldn't get above the top one | |
216 | status = wxSASH_STATUS_OUT_OF_RANGE; | |
217 | } | |
218 | else | |
219 | { | |
220 | newHeight = y - yp; | |
221 | } | |
222 | break; | |
223 | ||
224 | case wxSASH_LEFT: | |
225 | if ( x > xp + w ) | |
226 | { | |
227 | // left sash shouldn't get beyond the right one | |
228 | status = wxSASH_STATUS_OUT_OF_RANGE; | |
229 | } | |
230 | else | |
231 | { | |
232 | newWidth = w - (x - xp); | |
233 | } | |
234 | break; | |
235 | ||
236 | case wxSASH_RIGHT: | |
237 | if ( x < xp ) | |
238 | { | |
239 | // and the right sash, finally, shouldn't be beyond the | |
240 | // left one | |
241 | status = wxSASH_STATUS_OUT_OF_RANGE; | |
242 | } | |
243 | else | |
244 | { | |
245 | newWidth = x - xp; | |
246 | } | |
247 | break; | |
248 | ||
249 | case wxSASH_NONE: | |
250 | // can this happen at all? | |
251 | break; | |
252 | } | |
253 | ||
254 | if ( newHeight == wxDefaultCoord ) | |
255 | { | |
256 | // didn't change | |
257 | newHeight = h; | |
258 | } | |
259 | else | |
260 | { | |
261 | // make sure it's in m_minimumPaneSizeY..m_maximumPaneSizeY range | |
262 | newHeight = wxMax(newHeight, m_minimumPaneSizeY); | |
263 | newHeight = wxMin(newHeight, m_maximumPaneSizeY); | |
264 | } | |
265 | ||
266 | if ( newWidth == wxDefaultCoord ) | |
267 | { | |
268 | // didn't change | |
269 | newWidth = w; | |
270 | } | |
271 | else | |
272 | { | |
273 | // make sure it's in m_minimumPaneSizeY..m_maximumPaneSizeY range | |
274 | newWidth = wxMax(newWidth, m_minimumPaneSizeX); | |
275 | newWidth = wxMin(newWidth, m_maximumPaneSizeX); | |
276 | } | |
277 | ||
278 | dragRect = wxRect(x, y, newWidth, newHeight); | |
279 | ||
280 | wxSashEvent eventSash(GetId(), edge); | |
281 | eventSash.SetEventObject(this); | |
282 | eventSash.SetDragStatus(status); | |
283 | eventSash.SetDragRect(dragRect); | |
284 | GetEventHandler()->ProcessEvent(eventSash); | |
285 | } | |
286 | else if ( event.LeftUp() ) | |
287 | { | |
288 | if (m_mouseCaptured) | |
289 | ReleaseMouse(); | |
290 | m_mouseCaptured = false; | |
291 | } | |
292 | else if (event.Moving() && !event.Dragging()) | |
293 | { | |
294 | // Just change the cursor if required | |
295 | if ( sashHit != wxSASH_NONE ) | |
296 | { | |
297 | if ( (sashHit == wxSASH_LEFT) || (sashHit == wxSASH_RIGHT) ) | |
298 | { | |
299 | if (m_currentCursor != m_sashCursorWE) | |
300 | { | |
301 | SetCursor(*m_sashCursorWE); | |
302 | } | |
303 | m_currentCursor = m_sashCursorWE; | |
304 | } | |
305 | else | |
306 | { | |
307 | if (m_currentCursor != m_sashCursorNS) | |
308 | { | |
309 | SetCursor(*m_sashCursorNS); | |
310 | } | |
311 | m_currentCursor = m_sashCursorNS; | |
312 | } | |
313 | } | |
314 | else | |
315 | { | |
316 | SetCursor(wxNullCursor); | |
317 | m_currentCursor = NULL; | |
318 | } | |
319 | } | |
320 | else if ( event.Dragging() && | |
321 | ((m_dragMode == wxSASH_DRAG_DRAGGING) || | |
322 | (m_dragMode == wxSASH_DRAG_LEFT_DOWN)) ) | |
323 | { | |
324 | if ( (m_draggingEdge == wxSASH_LEFT) || (m_draggingEdge == wxSASH_RIGHT) ) | |
325 | { | |
326 | if (m_currentCursor != m_sashCursorWE) | |
327 | { | |
328 | SetCursor(*m_sashCursorWE); | |
329 | } | |
330 | m_currentCursor = m_sashCursorWE; | |
331 | } | |
332 | else | |
333 | { | |
334 | if (m_currentCursor != m_sashCursorNS) | |
335 | { | |
336 | SetCursor(*m_sashCursorNS); | |
337 | } | |
338 | m_currentCursor = m_sashCursorNS; | |
339 | } | |
340 | ||
341 | if (m_dragMode == wxSASH_DRAG_LEFT_DOWN) | |
342 | { | |
343 | m_dragMode = wxSASH_DRAG_DRAGGING; | |
344 | DrawSashTracker(m_draggingEdge, x, y); | |
345 | } | |
346 | else | |
347 | { | |
348 | if ( m_dragMode == wxSASH_DRAG_DRAGGING ) | |
349 | { | |
350 | // Erase old tracker | |
351 | DrawSashTracker(m_draggingEdge, m_oldX, m_oldY); | |
352 | ||
353 | // Draw new one | |
354 | DrawSashTracker(m_draggingEdge, x, y); | |
355 | } | |
356 | } | |
357 | m_oldX = x; | |
358 | m_oldY = y; | |
359 | } | |
360 | else if ( event.LeftDClick() ) | |
361 | { | |
362 | // Nothing | |
363 | } | |
364 | else | |
365 | { | |
366 | } | |
367 | } | |
368 | ||
369 | void wxSashWindow::OnSize(wxSizeEvent& WXUNUSED(event)) | |
370 | { | |
371 | SizeWindows(); | |
372 | } | |
373 | ||
374 | wxSashEdgePosition wxSashWindow::SashHitTest(int x, int y, int WXUNUSED(tolerance)) | |
375 | { | |
376 | int cx, cy; | |
377 | GetClientSize(& cx, & cy); | |
378 | ||
379 | int i; | |
380 | for (i = 0; i < 4; i++) | |
381 | { | |
382 | wxSashEdge& edge = m_sashes[i]; | |
383 | wxSashEdgePosition position = (wxSashEdgePosition) i ; | |
384 | ||
385 | if (edge.m_show) | |
386 | { | |
387 | switch (position) | |
388 | { | |
389 | case wxSASH_TOP: | |
390 | { | |
391 | if (y >= 0 && y <= GetEdgeMargin(position)) | |
392 | return wxSASH_TOP; | |
393 | break; | |
394 | } | |
395 | case wxSASH_RIGHT: | |
396 | { | |
397 | if ((x >= cx - GetEdgeMargin(position)) && (x <= cx)) | |
398 | return wxSASH_RIGHT; | |
399 | break; | |
400 | } | |
401 | case wxSASH_BOTTOM: | |
402 | { | |
403 | if ((y >= cy - GetEdgeMargin(position)) && (y <= cy)) | |
404 | return wxSASH_BOTTOM; | |
405 | break; | |
406 | } | |
407 | case wxSASH_LEFT: | |
408 | { | |
409 | if ((x <= GetEdgeMargin(position)) && (x >= 0)) | |
410 | return wxSASH_LEFT; | |
411 | break; | |
412 | } | |
413 | case wxSASH_NONE: | |
414 | { | |
415 | break; | |
416 | } | |
417 | } | |
418 | } | |
419 | } | |
420 | return wxSASH_NONE; | |
421 | } | |
422 | ||
423 | // Draw 3D effect borders | |
424 | void wxSashWindow::DrawBorders(wxDC& dc) | |
425 | { | |
426 | int w, h; | |
427 | GetClientSize(&w, &h); | |
428 | ||
429 | wxPen mediumShadowPen(m_mediumShadowColour, 1, wxSOLID); | |
430 | wxPen darkShadowPen(m_darkShadowColour, 1, wxSOLID); | |
431 | wxPen lightShadowPen(m_lightShadowColour, 1, wxSOLID); | |
432 | wxPen hilightPen(m_hilightColour, 1, wxSOLID); | |
433 | ||
434 | if ( GetWindowStyleFlag() & wxSW_3DBORDER ) | |
435 | { | |
436 | dc.SetPen(mediumShadowPen); | |
437 | dc.DrawLine(0, 0, w-1, 0); | |
438 | dc.DrawLine(0, 0, 0, h - 1); | |
439 | ||
440 | dc.SetPen(darkShadowPen); | |
441 | dc.DrawLine(1, 1, w-2, 1); | |
442 | dc.DrawLine(1, 1, 1, h-2); | |
443 | ||
444 | dc.SetPen(hilightPen); | |
445 | dc.DrawLine(0, h-1, w-1, h-1); | |
446 | dc.DrawLine(w-1, 0, w-1, h); // Surely the maximum y pos. should be h - 1. | |
447 | /// Anyway, h is required for MSW. | |
448 | ||
449 | dc.SetPen(lightShadowPen); | |
450 | dc.DrawLine(w-2, 1, w-2, h-2); // Right hand side | |
451 | dc.DrawLine(1, h-2, w-1, h-2); // Bottom | |
452 | } | |
453 | else if ( GetWindowStyleFlag() & wxSW_BORDER ) | |
454 | { | |
455 | dc.SetBrush(*wxTRANSPARENT_BRUSH); | |
456 | dc.SetPen(*wxBLACK_PEN); | |
457 | dc.DrawRectangle(0, 0, w-1, h-1); | |
458 | } | |
459 | ||
460 | dc.SetPen(wxNullPen); | |
461 | dc.SetBrush(wxNullBrush); | |
462 | } | |
463 | ||
464 | void wxSashWindow::DrawSashes(wxDC& dc) | |
465 | { | |
466 | int i; | |
467 | for (i = 0; i < 4; i++) | |
468 | if (m_sashes[i].m_show) | |
469 | DrawSash((wxSashEdgePosition) i, dc); | |
470 | } | |
471 | ||
472 | // Draw the sash | |
473 | void wxSashWindow::DrawSash(wxSashEdgePosition edge, wxDC& dc) | |
474 | { | |
475 | int w, h; | |
476 | GetClientSize(&w, &h); | |
477 | ||
478 | wxPen facePen(m_faceColour, 1, wxSOLID); | |
479 | wxBrush faceBrush(m_faceColour, wxSOLID); | |
480 | wxPen mediumShadowPen(m_mediumShadowColour, 1, wxSOLID); | |
481 | wxPen darkShadowPen(m_darkShadowColour, 1, wxSOLID); | |
482 | wxPen lightShadowPen(m_lightShadowColour, 1, wxSOLID); | |
483 | wxPen hilightPen(m_hilightColour, 1, wxSOLID); | |
484 | wxColour blackClr(0, 0, 0); | |
485 | wxColour whiteClr(255, 255, 255); | |
486 | wxPen blackPen(blackClr, 1, wxSOLID); | |
487 | wxPen whitePen(whiteClr, 1, wxSOLID); | |
488 | ||
489 | if ( edge == wxSASH_LEFT || edge == wxSASH_RIGHT ) | |
490 | { | |
491 | int sashPosition = (edge == wxSASH_LEFT) ? 0 : ( w - GetEdgeMargin(edge) ); | |
492 | ||
493 | dc.SetPen(facePen); | |
494 | dc.SetBrush(faceBrush); | |
495 | dc.DrawRectangle(sashPosition, 0, GetEdgeMargin(edge), h); | |
496 | ||
497 | if (GetWindowStyleFlag() & wxSW_3DSASH) | |
498 | { | |
499 | if (edge == wxSASH_LEFT) | |
500 | { | |
501 | // Draw a dark grey line on the left to indicate that the | |
502 | // sash is raised | |
503 | dc.SetPen(mediumShadowPen); | |
504 | dc.DrawLine(GetEdgeMargin(edge), 0, GetEdgeMargin(edge), h); | |
505 | } | |
506 | else | |
507 | { | |
508 | // Draw a highlight line on the right to indicate that the | |
509 | // sash is raised | |
510 | dc.SetPen(hilightPen); | |
511 | dc.DrawLine(w - GetEdgeMargin(edge), 0, w - GetEdgeMargin(edge), h); | |
512 | } | |
513 | } | |
514 | } | |
515 | else // top or bottom | |
516 | { | |
517 | int sashPosition = (edge == wxSASH_TOP) ? 0 : ( h - GetEdgeMargin(edge) ); | |
518 | ||
519 | dc.SetPen(facePen); | |
520 | dc.SetBrush(faceBrush); | |
521 | dc.DrawRectangle(0, sashPosition, w, GetEdgeMargin(edge)); | |
522 | ||
523 | if (GetWindowStyleFlag() & wxSW_3DSASH) | |
524 | { | |
525 | if (edge == wxSASH_BOTTOM) | |
526 | { | |
527 | // Draw a highlight line on the bottom to indicate that the | |
528 | // sash is raised | |
529 | dc.SetPen(hilightPen); | |
530 | dc.DrawLine(0, h - GetEdgeMargin(edge), w, h - GetEdgeMargin(edge)); | |
531 | } | |
532 | else | |
533 | { | |
534 | // Draw a drak grey line on the top to indicate that the | |
535 | // sash is raised | |
536 | dc.SetPen(mediumShadowPen); | |
537 | dc.DrawLine(1, GetEdgeMargin(edge), w-1, GetEdgeMargin(edge)); | |
538 | } | |
539 | } | |
540 | } | |
541 | ||
542 | dc.SetPen(wxNullPen); | |
543 | dc.SetBrush(wxNullBrush); | |
544 | } | |
545 | ||
546 | // Draw the sash tracker (for whilst moving the sash) | |
547 | void wxSashWindow::DrawSashTracker(wxSashEdgePosition edge, int x, int y) | |
548 | { | |
549 | int w, h; | |
550 | GetClientSize(&w, &h); | |
551 | ||
552 | wxScreenDC screenDC; | |
553 | int x1, y1; | |
554 | int x2, y2; | |
555 | ||
556 | if ( edge == wxSASH_LEFT || edge == wxSASH_RIGHT ) | |
557 | { | |
558 | x1 = x; y1 = 2; | |
559 | x2 = x; y2 = h-2; | |
560 | ||
561 | if ( (edge == wxSASH_LEFT) && (x1 > w) ) | |
562 | { | |
563 | x1 = w; x2 = w; | |
564 | } | |
565 | else if ( (edge == wxSASH_RIGHT) && (x1 < 0) ) | |
566 | { | |
567 | x1 = 0; x2 = 0; | |
568 | } | |
569 | } | |
570 | else | |
571 | { | |
572 | x1 = 2; y1 = y; | |
573 | x2 = w-2; y2 = y; | |
574 | ||
575 | if ( (edge == wxSASH_TOP) && (y1 > h) ) | |
576 | { | |
577 | y1 = h; | |
578 | y2 = h; | |
579 | } | |
580 | else if ( (edge == wxSASH_BOTTOM) && (y1 < 0) ) | |
581 | { | |
582 | y1 = 0; | |
583 | y2 = 0; | |
584 | } | |
585 | } | |
586 | ||
587 | ClientToScreen(&x1, &y1); | |
588 | ClientToScreen(&x2, &y2); | |
589 | ||
590 | wxPen sashTrackerPen(*wxBLACK, 2, wxSOLID); | |
591 | ||
592 | screenDC.SetLogicalFunction(wxINVERT); | |
593 | screenDC.SetPen(sashTrackerPen); | |
594 | screenDC.SetBrush(*wxTRANSPARENT_BRUSH); | |
595 | ||
596 | screenDC.DrawLine(x1, y1, x2, y2); | |
597 | ||
598 | screenDC.SetLogicalFunction(wxCOPY); | |
599 | ||
600 | screenDC.SetPen(wxNullPen); | |
601 | screenDC.SetBrush(wxNullBrush); | |
602 | } | |
603 | ||
604 | // Position and size subwindows. | |
605 | // Note that the border size applies to each subwindow, not | |
606 | // including the edges next to the sash. | |
607 | void wxSashWindow::SizeWindows() | |
608 | { | |
609 | int cw, ch; | |
610 | GetClientSize(&cw, &ch); | |
611 | ||
612 | if (GetChildren().GetCount() == 1) | |
613 | { | |
614 | wxWindow* child = GetChildren().GetFirst()->GetData(); | |
615 | ||
616 | int x = 0; | |
617 | int y = 0; | |
618 | int width = cw; | |
619 | int height = ch; | |
620 | ||
621 | // Top | |
622 | if (m_sashes[0].m_show) | |
623 | { | |
624 | y = m_borderSize; | |
625 | height -= m_borderSize; | |
626 | } | |
627 | y += m_extraBorderSize; | |
628 | ||
629 | // Left | |
630 | if (m_sashes[3].m_show) | |
631 | { | |
632 | x = m_borderSize; | |
633 | width -= m_borderSize; | |
634 | } | |
635 | x += m_extraBorderSize; | |
636 | ||
637 | // Right | |
638 | if (m_sashes[1].m_show) | |
639 | { | |
640 | width -= m_borderSize; | |
641 | } | |
642 | width -= 2*m_extraBorderSize; | |
643 | ||
644 | // Bottom | |
645 | if (m_sashes[2].m_show) | |
646 | { | |
647 | height -= m_borderSize; | |
648 | } | |
649 | height -= 2*m_extraBorderSize; | |
650 | ||
651 | child->SetSize(x, y, width, height); | |
652 | } | |
653 | else if (GetChildren().GetCount() > 1) | |
654 | { | |
655 | // Perhaps multiple children are themselves sash windows. | |
656 | // TODO: this doesn't really work because the subwindows sizes/positions | |
657 | // must be set to leave a gap for the parent's sash (hit-test and decorations). | |
658 | // Perhaps we can allow for this within LayoutWindow, testing whether the parent | |
659 | // is a sash window, and if so, allowing some space for the edges. | |
660 | wxLayoutAlgorithm layout; | |
661 | layout.LayoutWindow(this); | |
662 | } | |
663 | ||
664 | wxClientDC dc(this); | |
665 | DrawBorders(dc); | |
666 | DrawSashes(dc); | |
667 | } | |
668 | ||
669 | // Initialize colours | |
670 | void wxSashWindow::InitColours() | |
671 | { | |
672 | // Shadow colours | |
673 | m_faceColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DFACE); | |
674 | m_mediumShadowColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DSHADOW); | |
675 | m_darkShadowColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DDKSHADOW); | |
676 | m_lightShadowColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DLIGHT); | |
677 | m_hilightColour = wxSystemSettings::GetColour(wxSYS_COLOUR_3DHILIGHT); | |
678 | } | |
679 | ||
680 | void wxSashWindow::SetSashVisible(wxSashEdgePosition edge, bool sash) | |
681 | { | |
682 | m_sashes[edge].m_show = sash; | |
683 | if (sash) | |
684 | m_sashes[edge].m_margin = m_borderSize; | |
685 | else | |
686 | m_sashes[edge].m_margin = 0; | |
687 | } | |
688 | ||
689 | #if defined( __WXMSW__ ) || defined( __WXMAC__) | |
690 | ||
691 | // this is currently called (and needed) under MSW only... | |
692 | void wxSashWindow::OnSetCursor(wxSetCursorEvent& event) | |
693 | { | |
694 | // if we don't do it, the resizing cursor might be set for child window: | |
695 | // and like this we explicitly say that our cursor should not be used for | |
696 | // children windows which overlap us | |
697 | ||
698 | if ( SashHitTest(event.GetX(), event.GetY()) != wxSASH_NONE) | |
699 | { | |
700 | // default processing is ok | |
701 | event.Skip(); | |
702 | } | |
703 | //else: do nothing, in particular, don't call Skip() | |
704 | } | |
705 | ||
706 | #endif // __WXMSW__ || __WXMAC__ | |
707 | ||
708 | #endif // wxUSE_SASH |