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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: splitter.cpp | |
3 | // Purpose: wxSplitterWindow implementation | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 01/02/97 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart and Markus Holzem | |
9 | // Licence: wxWindows license | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "splitter.h" | |
14 | #endif | |
15 | ||
16 | // For compilers that support precompilation, includes "wx.h". | |
17 | #include "wx/wxprec.h" | |
18 | ||
19 | #ifdef __BORLANDC__ | |
20 | #pragma hdrstop | |
21 | #endif | |
22 | ||
23 | #ifndef WX_PRECOMP | |
24 | #include "wx/wx.h" | |
25 | #endif | |
26 | ||
27 | #include <math.h> | |
28 | #include <stdlib.h> | |
29 | ||
30 | #include "wx/string.h" | |
31 | #include "wx/splitter.h" | |
32 | #include "wx/dcscreen.h" | |
33 | ||
34 | #if !USE_SHARED_LIBRARY | |
35 | IMPLEMENT_DYNAMIC_CLASS(wxSplitterWindow, wxWindow) | |
36 | ||
37 | BEGIN_EVENT_TABLE(wxSplitterWindow, wxWindow) | |
38 | EVT_PAINT(wxSplitterWindow::OnPaint) | |
39 | EVT_SIZE(wxSplitterWindow::OnSize) | |
40 | EVT_MOUSE_EVENTS(wxSplitterWindow::OnMouseEvent) | |
41 | END_EVENT_TABLE() | |
42 | #endif | |
43 | ||
44 | wxSplitterWindow::wxSplitterWindow() | |
45 | { | |
46 | m_splitMode = wxSPLIT_VERTICAL; | |
47 | m_windowOne = (wxWindow *) NULL; | |
48 | m_windowTwo = (wxWindow *) NULL; | |
49 | m_dragMode = wxSPLIT_DRAG_NONE; | |
50 | m_oldX = 0; | |
51 | m_oldY = 0; | |
52 | m_firstX = 0; | |
53 | m_firstY = 0; | |
54 | m_sashSize = 7; | |
55 | m_borderSize = 2; | |
56 | m_sashPosition = 0; | |
57 | m_sashCursorWE = (wxCursor *) NULL; | |
58 | m_sashCursorNS = (wxCursor *) NULL; | |
59 | m_sashTrackerPen = (wxPen *) NULL; | |
60 | m_lightShadowPen = (wxPen *) NULL; | |
61 | m_mediumShadowPen = (wxPen *) NULL; | |
62 | m_darkShadowPen = (wxPen *) NULL; | |
63 | m_faceBrush = (wxBrush *) NULL; | |
64 | m_facePen = (wxPen *) NULL; | |
65 | m_hilightPen = (wxPen *) NULL; | |
66 | m_minimumPaneSize = 0; | |
67 | } | |
68 | ||
69 | wxSplitterWindow::wxSplitterWindow(wxWindow *parent, wxWindowID id, | |
70 | const wxPoint& pos, | |
71 | const wxSize& size, | |
72 | long style, | |
73 | const wxString& name) | |
74 | : wxWindow(parent, id, pos, size, style, name) | |
75 | { | |
76 | m_splitMode = wxSPLIT_VERTICAL; | |
77 | m_windowOne = (wxWindow *) NULL; | |
78 | m_windowTwo = (wxWindow *) NULL; | |
79 | m_dragMode = wxSPLIT_DRAG_NONE; | |
80 | m_oldX = 0; | |
81 | m_oldY = 0; | |
82 | m_firstX = 0; | |
83 | m_firstY = 0; | |
84 | m_sashSize = 7; | |
85 | m_borderSize = 2; | |
86 | m_sashPosition = 0; | |
87 | m_minimumPaneSize = 0; | |
88 | m_sashCursorWE = new wxCursor(wxCURSOR_SIZEWE); | |
89 | m_sashCursorNS = new wxCursor(wxCURSOR_SIZENS); | |
90 | m_sashTrackerPen = new wxPen(*wxBLACK, 2, wxSOLID); | |
91 | m_lightShadowPen = (wxPen *) NULL; | |
92 | m_mediumShadowPen = (wxPen *) NULL; | |
93 | m_darkShadowPen = (wxPen *) NULL; | |
94 | m_faceBrush = (wxBrush *) NULL; | |
95 | m_facePen = (wxPen *) NULL; | |
96 | m_hilightPen = (wxPen *) NULL; | |
97 | ||
98 | if ( style & wxSP_3D ) | |
99 | { | |
100 | m_borderSize = 2; | |
101 | m_sashSize = 7; | |
102 | } | |
103 | else if ( style & wxSP_BORDER ) | |
104 | { | |
105 | m_borderSize = 1; | |
106 | m_sashSize = 3; | |
107 | } | |
108 | else | |
109 | { | |
110 | m_borderSize = 0; | |
111 | m_sashSize = 3; | |
112 | } | |
113 | ||
114 | // Eventually, we'll respond to colour change messages | |
115 | InitColours(); | |
116 | ||
117 | // For debugging purposes, to see the background. | |
118 | // SetBackground(wxBLUE_BRUSH); | |
119 | } | |
120 | ||
121 | wxSplitterWindow::~wxSplitterWindow() | |
122 | { | |
123 | delete m_sashCursorWE; | |
124 | delete m_sashCursorNS; | |
125 | delete m_sashTrackerPen; | |
126 | delete m_lightShadowPen; | |
127 | delete m_darkShadowPen; | |
128 | delete m_mediumShadowPen; | |
129 | delete m_hilightPen; | |
130 | delete m_facePen; | |
131 | delete m_faceBrush; | |
132 | } | |
133 | ||
134 | void wxSplitterWindow::OnPaint(wxPaintEvent& WXUNUSED(event)) | |
135 | { | |
136 | wxPaintDC dc(this); | |
137 | ||
138 | if ( m_borderSize > 0 ) | |
139 | DrawBorders(dc); | |
140 | DrawSash(dc); | |
141 | } | |
142 | ||
143 | ||
144 | void wxSplitterWindow::OnMouseEvent(wxMouseEvent& event) | |
145 | { | |
146 | long x = event.GetX(); | |
147 | long y = event.GetY(); | |
148 | ||
149 | // reset the cursor | |
150 | #ifdef __WXMOTIF__ | |
151 | SetCursor(* wxSTANDARD_CURSOR); | |
152 | #endif | |
153 | #ifdef __WXMSW__ | |
154 | SetCursor(wxCursor()); | |
155 | #endif | |
156 | ||
157 | // under wxGTK the method above causes the mouse | |
158 | // to flicker so we set the standard cursor only | |
159 | // when leaving the window and when moving over | |
160 | // non-sash parts of the window. this should work | |
161 | // on the other platforms as well, but who knows. | |
162 | #ifdef __WXGTK__ | |
163 | if (event.Leaving()) | |
164 | SetCursor(* wxSTANDARD_CURSOR); | |
165 | #endif | |
166 | ||
167 | if (event.LeftDown()) | |
168 | { | |
169 | if ( SashHitTest(x, y) ) | |
170 | { | |
171 | CaptureMouse(); | |
172 | ||
173 | m_dragMode = wxSPLIT_DRAG_DRAGGING; | |
174 | ||
175 | DrawSashTracker(x, y); | |
176 | m_oldX = x; | |
177 | m_oldY = y; | |
178 | return; | |
179 | } | |
180 | } | |
181 | else if (event.LeftUp() && m_dragMode == wxSPLIT_DRAG_DRAGGING) | |
182 | { | |
183 | // We can stop dragging now and see what we've got. | |
184 | m_dragMode = wxSPLIT_DRAG_NONE; | |
185 | ReleaseMouse(); | |
186 | ||
187 | // Erase old tracker | |
188 | DrawSashTracker(m_oldX, m_oldY); | |
189 | ||
190 | // Obtain window size. We are only interested in the dimension the sash | |
191 | // splits up | |
192 | int w, h; | |
193 | GetClientSize(&w, &h); | |
194 | int window_size = (m_splitMode == wxSPLIT_VERTICAL ? w : h ); | |
195 | int new_sash_position = | |
196 | (int) ( m_splitMode == wxSPLIT_VERTICAL ? x : y ); | |
197 | ||
198 | if ( !OnSashPositionChange(new_sash_position) ) | |
199 | return; | |
200 | ||
201 | if ( new_sash_position == 0 ) | |
202 | { | |
203 | // We remove the first window from the view | |
204 | wxWindow *removedWindow = m_windowOne; | |
205 | m_windowOne = m_windowTwo; | |
206 | m_windowTwo = (wxWindow *) NULL; | |
207 | OnUnsplit(removedWindow); | |
208 | m_sashPosition = 0; | |
209 | } | |
210 | else if ( new_sash_position == window_size ) | |
211 | { | |
212 | // We remove the second window from the view | |
213 | wxWindow *removedWindow = m_windowTwo; | |
214 | m_windowTwo = (wxWindow *) NULL; | |
215 | OnUnsplit(removedWindow); | |
216 | m_sashPosition = 0; | |
217 | } | |
218 | else | |
219 | { | |
220 | m_sashPosition = new_sash_position; | |
221 | } | |
222 | SizeWindows(); | |
223 | } // left up && dragging | |
224 | else if (event.Moving() && !event.Dragging()) | |
225 | { | |
226 | // Just change the cursor if required | |
227 | if ( SashHitTest(x, y) ) | |
228 | { | |
229 | if ( m_splitMode == wxSPLIT_VERTICAL ) | |
230 | { | |
231 | SetCursor(*m_sashCursorWE); | |
232 | } | |
233 | else | |
234 | { | |
235 | SetCursor(*m_sashCursorNS); | |
236 | } | |
237 | } | |
238 | #ifdef __WXGTK__ | |
239 | else | |
240 | { | |
241 | // where else do we unset the cursor? | |
242 | SetCursor(* wxSTANDARD_CURSOR); | |
243 | } | |
244 | #endif | |
245 | } | |
246 | else if (event.Dragging() && (m_dragMode == wxSPLIT_DRAG_DRAGGING)) | |
247 | { | |
248 | // Erase old tracker | |
249 | DrawSashTracker(m_oldX, m_oldY); | |
250 | ||
251 | // Draw new one | |
252 | DrawSashTracker(x, y); | |
253 | ||
254 | m_oldX = x; | |
255 | m_oldY = y; | |
256 | } | |
257 | else if ( event.LeftDClick() ) | |
258 | { | |
259 | OnDoubleClickSash(x, y); | |
260 | } | |
261 | } | |
262 | ||
263 | void wxSplitterWindow::OnSize(wxSizeEvent& WXUNUSED(event)) | |
264 | { | |
265 | int cw, ch; | |
266 | GetClientSize( &cw, &ch ); | |
267 | if ( m_windowTwo ) | |
268 | { | |
269 | if ( m_splitMode == wxSPLIT_VERTICAL ) | |
270 | { | |
271 | if ( m_sashPosition >= (cw - 5) ) | |
272 | m_sashPosition = wxMax(10, cw - 40); | |
273 | } | |
274 | if ( m_splitMode == wxSPLIT_HORIZONTAL ) | |
275 | { | |
276 | if ( m_sashPosition >= (ch - 5) ) | |
277 | m_sashPosition = wxMax(10, ch - 40); | |
278 | } | |
279 | } | |
280 | SizeWindows(); | |
281 | } | |
282 | ||
283 | bool wxSplitterWindow::SashHitTest(int x, int y, int tolerance) | |
284 | { | |
285 | if ( m_windowTwo == NULL || m_sashPosition == 0) | |
286 | return FALSE; // No sash | |
287 | ||
288 | if ( m_splitMode == wxSPLIT_VERTICAL ) | |
289 | { | |
290 | if ( (x >= m_sashPosition - tolerance) && (x <= m_sashPosition + m_sashSize + tolerance) ) | |
291 | return TRUE; | |
292 | else | |
293 | return FALSE; | |
294 | } | |
295 | else | |
296 | { | |
297 | if ( (y >= (m_sashPosition- tolerance)) && (y <= (m_sashPosition + m_sashSize + tolerance)) ) | |
298 | return TRUE; | |
299 | else | |
300 | return FALSE; | |
301 | } | |
302 | ||
303 | return FALSE; | |
304 | } | |
305 | ||
306 | // Draw 3D effect borders | |
307 | void wxSplitterWindow::DrawBorders(wxDC& dc) | |
308 | { | |
309 | int w, h; | |
310 | GetClientSize(&w, &h); | |
311 | ||
312 | if ( GetWindowStyleFlag() & wxSP_3D ) | |
313 | { | |
314 | dc.SetPen(*m_mediumShadowPen); | |
315 | dc.DrawLine(0, 0, w-1, 0); | |
316 | dc.DrawLine(0, 0, 0, h - 1); | |
317 | ||
318 | dc.SetPen(*m_darkShadowPen); | |
319 | dc.DrawLine(1, 1, w-2, 1); | |
320 | dc.DrawLine(1, 1, 1, h-2); | |
321 | ||
322 | dc.SetPen(*m_hilightPen); | |
323 | dc.DrawLine(0, h-1, w-1, h-1); | |
324 | dc.DrawLine(w-1, 0, w-1, h); // Surely the maximum y pos. should be h - 1. | |
325 | /// Anyway, h is required for MSW. | |
326 | ||
327 | dc.SetPen(*m_lightShadowPen); | |
328 | dc.DrawLine(w-2, 1, w-2, h-2); // Right hand side | |
329 | dc.DrawLine(1, h-2, w-1, h-2); // Bottom | |
330 | } | |
331 | else if ( GetWindowStyleFlag() & wxSP_BORDER ) | |
332 | { | |
333 | dc.SetBrush(*wxTRANSPARENT_BRUSH); | |
334 | dc.SetPen(*wxBLACK_PEN); | |
335 | dc.DrawRectangle(0, 0, w-1, h-1); | |
336 | } | |
337 | ||
338 | dc.SetPen(wxNullPen); | |
339 | dc.SetBrush(wxNullBrush); | |
340 | } | |
341 | ||
342 | // Draw the sash | |
343 | void wxSplitterWindow::DrawSash(wxDC& dc) | |
344 | { | |
345 | if ( m_sashPosition == 0 || !m_windowTwo) | |
346 | return; | |
347 | ||
348 | int w, h; | |
349 | GetClientSize(&w, &h); | |
350 | ||
351 | if ( GetWindowStyleFlag() & wxSP_3D ) | |
352 | { | |
353 | if ( m_splitMode == wxSPLIT_VERTICAL ) | |
354 | { | |
355 | dc.SetPen(*m_facePen); | |
356 | dc.SetBrush(*m_faceBrush); | |
357 | dc.DrawRectangle(m_sashPosition + 2, 0, m_sashSize - 4, h); | |
358 | ||
359 | dc.SetBrush(*wxTRANSPARENT_BRUSH); | |
360 | ||
361 | dc.SetPen(*m_lightShadowPen); | |
362 | dc.DrawLine(m_sashPosition, 1, m_sashPosition, h-2); | |
363 | ||
364 | dc.SetPen(*m_hilightPen); | |
365 | dc.DrawLine(m_sashPosition+1, 0, m_sashPosition+1, h); | |
366 | ||
367 | dc.SetPen(*m_mediumShadowPen); | |
368 | dc.DrawLine(m_sashPosition+m_sashSize-2, 1, m_sashPosition+m_sashSize-2, h-1); | |
369 | ||
370 | dc.SetPen(*m_darkShadowPen); | |
371 | dc.DrawLine(m_sashPosition+m_sashSize-1, 2, m_sashPosition+m_sashSize-1, h-2); | |
372 | } | |
373 | else | |
374 | { | |
375 | dc.SetPen(*m_facePen); | |
376 | dc.SetBrush(*m_faceBrush); | |
377 | dc.DrawRectangle(0, m_sashPosition + 2, w, m_sashSize - 4); | |
378 | ||
379 | dc.SetBrush(*wxTRANSPARENT_BRUSH); | |
380 | ||
381 | dc.SetPen(*m_lightShadowPen); | |
382 | dc.DrawLine(1, m_sashPosition, w-2, m_sashPosition); | |
383 | ||
384 | dc.SetPen(*m_hilightPen); | |
385 | dc.DrawLine(0, m_sashPosition+1, w, m_sashPosition+1); | |
386 | ||
387 | dc.SetPen(*m_mediumShadowPen); | |
388 | dc.DrawLine(1, m_sashPosition+m_sashSize-2, w-1, m_sashPosition+m_sashSize-2); | |
389 | ||
390 | dc.SetPen(*m_darkShadowPen); | |
391 | dc.DrawLine(2, m_sashPosition+m_sashSize-1, w-2, m_sashPosition+m_sashSize-1); | |
392 | } | |
393 | } | |
394 | else | |
395 | { | |
396 | if ( m_splitMode == wxSPLIT_VERTICAL ) | |
397 | { | |
398 | dc.SetPen(*wxBLACK_PEN); | |
399 | dc.SetBrush(*wxBLACK_BRUSH); | |
400 | int h1 = h-1; | |
401 | if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER ) | |
402 | h1 += 1; // Not sure why this is necessary... | |
403 | dc.DrawRectangle(m_sashPosition, 0, m_sashSize, h1); | |
404 | } | |
405 | else | |
406 | { | |
407 | dc.SetPen(*wxBLACK_PEN); | |
408 | dc.SetBrush(*wxBLACK_BRUSH); | |
409 | int w1 = w-1; | |
410 | if ( (GetWindowStyleFlag() & wxSP_BORDER) != wxSP_BORDER ) | |
411 | w1 ++; | |
412 | ||
413 | dc.DrawRectangle(0, m_sashPosition, w1, m_sashSize); | |
414 | } | |
415 | ||
416 | } | |
417 | ||
418 | dc.SetPen(wxNullPen); | |
419 | dc.SetBrush(wxNullBrush); | |
420 | } | |
421 | ||
422 | // Draw the sash tracker (for whilst moving the sash) | |
423 | void wxSplitterWindow::DrawSashTracker(int x, int y) | |
424 | { | |
425 | int w, h; | |
426 | GetClientSize(&w, &h); | |
427 | ||
428 | wxScreenDC screenDC; | |
429 | int x1, y1; | |
430 | int x2, y2; | |
431 | ||
432 | if ( m_splitMode == wxSPLIT_VERTICAL ) | |
433 | { | |
434 | x1 = x; y1 = 2; | |
435 | x2 = x; y2 = h-2; | |
436 | ||
437 | if ( x1 > w ) | |
438 | { | |
439 | x1 = w; x2 = w; | |
440 | } | |
441 | else if ( x1 < 0 ) | |
442 | { | |
443 | x1 = 0; x2 = 0; | |
444 | } | |
445 | } | |
446 | else | |
447 | { | |
448 | x1 = 2; y1 = y; | |
449 | x2 = w-2; y2 = y; | |
450 | ||
451 | if ( y1 > h ) | |
452 | { | |
453 | y1 = h; | |
454 | y2 = h; | |
455 | } | |
456 | else if ( y1 < 0 ) | |
457 | { | |
458 | y1 = 0; | |
459 | y2 = 0; | |
460 | } | |
461 | } | |
462 | ||
463 | ClientToScreen(&x1, &y1); | |
464 | ClientToScreen(&x2, &y2); | |
465 | ||
466 | screenDC.SetLogicalFunction(wxXOR); | |
467 | screenDC.SetPen(*m_sashTrackerPen); | |
468 | screenDC.SetBrush(*wxTRANSPARENT_BRUSH); | |
469 | ||
470 | screenDC.DrawLine(x1, y1, x2, y2); | |
471 | ||
472 | screenDC.SetLogicalFunction(wxCOPY); | |
473 | ||
474 | screenDC.SetPen(wxNullPen); | |
475 | screenDC.SetBrush(wxNullBrush); | |
476 | } | |
477 | ||
478 | // Position and size subwindows. | |
479 | // Note that the border size applies to each subwindow, not | |
480 | // including the edges next to the sash. | |
481 | void wxSplitterWindow::SizeWindows() | |
482 | { | |
483 | int w, h; | |
484 | GetClientSize(&w, &h); | |
485 | ||
486 | if ( m_windowOne && !m_windowTwo ) | |
487 | { | |
488 | m_windowOne->SetSize(m_borderSize, m_borderSize, w - 2*m_borderSize, h - 2*m_borderSize); | |
489 | } | |
490 | else if ( m_windowOne && m_windowTwo ) | |
491 | { | |
492 | if (m_splitMode == wxSPLIT_VERTICAL) | |
493 | { | |
494 | int x1 = m_borderSize; | |
495 | int y1 = m_borderSize; | |
496 | int w1 = m_sashPosition - m_borderSize; | |
497 | int h1 = h - 2*m_borderSize; | |
498 | ||
499 | int x2 = m_sashPosition + m_sashSize; | |
500 | int y2 = m_borderSize; | |
501 | int w2 = w - 2*m_borderSize - m_sashSize - w1; | |
502 | int h2 = h - 2*m_borderSize; | |
503 | ||
504 | m_windowOne->SetSize(x1, y1, w1, h1); | |
505 | m_windowTwo->SetSize(x2, y2, w2, h2); | |
506 | } | |
507 | else | |
508 | { | |
509 | m_windowOne->SetSize(m_borderSize, m_borderSize, | |
510 | w - 2*m_borderSize, m_sashPosition - m_borderSize); | |
511 | m_windowTwo->SetSize(m_borderSize, m_sashPosition + m_sashSize, | |
512 | w - 2*m_borderSize, h - 2*m_borderSize - m_sashSize - (m_sashPosition - m_borderSize)); | |
513 | } | |
514 | } | |
515 | wxClientDC dc(this); | |
516 | DrawBorders(dc); | |
517 | DrawSash(dc); | |
518 | } | |
519 | ||
520 | // Set pane for unsplit window | |
521 | void wxSplitterWindow::Initialize(wxWindow *window) | |
522 | { | |
523 | m_windowOne = window; | |
524 | m_windowTwo = (wxWindow *) NULL; | |
525 | m_sashPosition = 0; | |
526 | } | |
527 | ||
528 | // Associates the given window with window 2, drawing the appropriate sash | |
529 | // and changing the split mode. | |
530 | // Does nothing and returns FALSE if the window is already split. | |
531 | bool wxSplitterWindow::SplitVertically(wxWindow *window1, wxWindow *window2, int sashPosition) | |
532 | { | |
533 | if ( IsSplit() ) | |
534 | return FALSE; | |
535 | ||
536 | int w, h; | |
537 | GetClientSize(&w, &h); | |
538 | ||
539 | m_splitMode = wxSPLIT_VERTICAL; | |
540 | m_windowOne = window1; | |
541 | m_windowTwo = window2; | |
542 | if ( sashPosition > 0 ) | |
543 | m_sashPosition = sashPosition; | |
544 | else if ( sashPosition < 0 ) | |
545 | m_sashPosition = w - sashPosition; | |
546 | else // default | |
547 | m_sashPosition = w/2; | |
548 | ||
549 | SizeWindows(); | |
550 | ||
551 | return TRUE; | |
552 | } | |
553 | ||
554 | bool wxSplitterWindow::SplitHorizontally(wxWindow *window1, wxWindow *window2, int sashPosition) | |
555 | { | |
556 | if ( IsSplit() ) | |
557 | return FALSE; | |
558 | ||
559 | int w, h; | |
560 | GetClientSize(&w, &h); | |
561 | ||
562 | m_splitMode = wxSPLIT_HORIZONTAL; | |
563 | m_windowOne = window1; | |
564 | m_windowTwo = window2; | |
565 | if ( sashPosition > 0 ) | |
566 | m_sashPosition = sashPosition; | |
567 | else if ( sashPosition < 0 ) | |
568 | m_sashPosition = h - sashPosition; | |
569 | else // default | |
570 | m_sashPosition = h/2; | |
571 | ||
572 | SizeWindows(); | |
573 | ||
574 | return TRUE; | |
575 | } | |
576 | ||
577 | ||
578 | // Remove the specified (or second) window from the view | |
579 | // Doesn't actually delete the window. | |
580 | bool wxSplitterWindow::Unsplit(wxWindow *toRemove) | |
581 | { | |
582 | if ( ! IsSplit() ) | |
583 | return FALSE; | |
584 | ||
585 | wxWindow *win = NULL; | |
586 | if ( toRemove == NULL || toRemove == m_windowTwo) | |
587 | { | |
588 | win = m_windowTwo ; | |
589 | m_windowTwo = (wxWindow *) NULL; | |
590 | } | |
591 | else if ( toRemove == m_windowOne ) | |
592 | { | |
593 | win = m_windowOne ; | |
594 | m_windowOne = m_windowTwo; | |
595 | m_windowTwo = (wxWindow *) NULL; | |
596 | } | |
597 | else | |
598 | { | |
599 | wxFAIL_MSG(_T("splitter: attempt to remove a non-existent window")); | |
600 | ||
601 | return FALSE; | |
602 | } | |
603 | ||
604 | OnUnsplit(win); | |
605 | m_sashPosition = 0; | |
606 | SizeWindows(); | |
607 | ||
608 | return TRUE; | |
609 | } | |
610 | ||
611 | // Replace a window with another one | |
612 | bool wxSplitterWindow::ReplaceWindow(wxWindow *winOld, wxWindow *winNew) | |
613 | { | |
614 | wxCHECK_MSG( winOld, FALSE, _T("use one of Split() functions instead") ); | |
615 | wxCHECK_MSG( winNew, FALSE, _T("use Unsplit() functions instead") ); | |
616 | ||
617 | if ( winOld == m_windowTwo ) | |
618 | { | |
619 | m_windowTwo = winNew; | |
620 | } | |
621 | else if ( winOld == m_windowOne ) | |
622 | { | |
623 | m_windowOne = winNew; | |
624 | } | |
625 | else | |
626 | { | |
627 | wxFAIL_MSG(_T("splitter: attempt to replace a non-existent window")); | |
628 | ||
629 | return FALSE; | |
630 | } | |
631 | ||
632 | SizeWindows(); | |
633 | ||
634 | return TRUE; | |
635 | } | |
636 | ||
637 | void wxSplitterWindow::SetSashPosition(int position, bool redraw) | |
638 | { | |
639 | m_sashPosition = position; | |
640 | ||
641 | if ( redraw ) | |
642 | { | |
643 | SizeWindows(); | |
644 | } | |
645 | } | |
646 | ||
647 | bool wxSplitterWindow::OnSashPositionChange(int& newSashPosition) | |
648 | { | |
649 | // If within UNSPLIT_THRESHOLD from edge, set to edge to cause closure. | |
650 | const int UNSPLIT_THRESHOLD = 4; | |
651 | ||
652 | if (newSashPosition <= UNSPLIT_THRESHOLD) // threshold top / left check | |
653 | { | |
654 | newSashPosition = 0; | |
655 | return TRUE; | |
656 | } | |
657 | ||
658 | // Obtain relevant window dimension for bottom / right threshold check | |
659 | int w, h; | |
660 | GetClientSize(&w, &h); | |
661 | int window_size = (m_splitMode == wxSPLIT_VERTICAL) ? w : h ; | |
662 | ||
663 | if ( newSashPosition >= window_size - UNSPLIT_THRESHOLD ) | |
664 | { | |
665 | newSashPosition = window_size; | |
666 | return TRUE; | |
667 | } | |
668 | ||
669 | // If resultant pane would be too small, enlarge it. | |
670 | ||
671 | // Check upper / left pane | |
672 | if ( newSashPosition < m_minimumPaneSize ) | |
673 | newSashPosition = m_minimumPaneSize; // NB: don't return just yet | |
674 | ||
675 | // Check lower / right pane (check even if sash was just adjusted) | |
676 | if ( newSashPosition > window_size - m_minimumPaneSize ) | |
677 | newSashPosition = window_size - m_minimumPaneSize; | |
678 | ||
679 | // If the result is out of bounds it means minimum size is too big, so | |
680 | // split window in half as best compromise. | |
681 | if (newSashPosition < 0 || newSashPosition > window_size) | |
682 | newSashPosition = window_size / 2; | |
683 | return TRUE; | |
684 | } | |
685 | ||
686 | // Called when the sash is double-clicked. | |
687 | // The default behaviour is to remove the sash if the | |
688 | // minimum pane size is zero. | |
689 | void wxSplitterWindow::OnDoubleClickSash(int WXUNUSED(x), int WXUNUSED(y) ) | |
690 | { | |
691 | if ( GetMinimumPaneSize() == 0 ) | |
692 | { | |
693 | Unsplit(); | |
694 | } | |
695 | } | |
696 | ||
697 | // Initialize colours | |
698 | void wxSplitterWindow::InitColours() | |
699 | { | |
700 | wxDELETE( m_facePen ); | |
701 | wxDELETE( m_faceBrush ); | |
702 | wxDELETE( m_mediumShadowPen ); | |
703 | wxDELETE( m_darkShadowPen ); | |
704 | wxDELETE( m_lightShadowPen ); | |
705 | wxDELETE( m_hilightPen ); | |
706 | ||
707 | // Shadow colours | |
708 | #if defined(__WIN95__) | |
709 | wxColour faceColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DFACE)); | |
710 | m_facePen = new wxPen(faceColour, 1, wxSOLID); | |
711 | m_faceBrush = new wxBrush(faceColour, wxSOLID); | |
712 | ||
713 | wxColour mediumShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DSHADOW)); | |
714 | m_mediumShadowPen = new wxPen(mediumShadowColour, 1, wxSOLID); | |
715 | ||
716 | wxColour darkShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DDKSHADOW)); | |
717 | m_darkShadowPen = new wxPen(darkShadowColour, 1, wxSOLID); | |
718 | ||
719 | wxColour lightShadowColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DLIGHT)); | |
720 | m_lightShadowPen = new wxPen(lightShadowColour, 1, wxSOLID); | |
721 | ||
722 | wxColour hilightColour(wxSystemSettings::GetSystemColour(wxSYS_COLOUR_3DHILIGHT)); | |
723 | m_hilightPen = new wxPen(hilightColour, 1, wxSOLID); | |
724 | #else // !Win32 | |
725 | m_facePen = new wxPen("LIGHT GREY", 1, wxSOLID); | |
726 | m_faceBrush = new wxBrush("LIGHT GREY", wxSOLID); | |
727 | m_mediumShadowPen = new wxPen("GREY", 1, wxSOLID); | |
728 | m_darkShadowPen = new wxPen("BLACK", 1, wxSOLID); | |
729 | m_lightShadowPen = new wxPen("LIGHT GREY", 1, wxSOLID); | |
730 | m_hilightPen = new wxPen("WHITE", 1, wxSOLID); | |
731 | #endif // Win32/!Win32 | |
732 | } | |
733 |