xref: /haiku/src/preferences/screen/ScreenWindow.cpp (revision e5d65858f2361fe0552495b61620c84dcee6bc00)
1 /*
2  * Copyright 2001-2013, Haiku, Inc.
3  * Distributed under the terms of the MIT License.
4  *
5  * Authors:
6  *		Stephan Aßmus, superstippi@gmx.de
7  *		Andrew Bachmann
8  *		Stefano Ceccherini, burton666@libero.it
9  *		Alexandre Deckner, alex@zappotek.com
10  *		Axel Dörfler, axeld@pinc-software.de
11  *		Rene Gollent, rene@gollent.com
12  *		Thomas Kurschel
13  *		Rafael Romo
14  *		John Scipione, jscipione@gmail.com
15  */
16 
17 
18 #include "ScreenWindow.h"
19 
20 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 
24 #include <Alert.h>
25 #include <Application.h>
26 #include <Box.h>
27 #include <Button.h>
28 #include <Catalog.h>
29 #include <ControlLook.h>
30 #include <Directory.h>
31 #include <File.h>
32 #include <FindDirectory.h>
33 #include <InterfaceDefs.h>
34 #include <LayoutBuilder.h>
35 #include <MenuBar.h>
36 #include <MenuItem.h>
37 #include <MenuField.h>
38 #include <Messenger.h>
39 #include <Path.h>
40 #include <PopUpMenu.h>
41 #include <Screen.h>
42 #include <SpaceLayoutItem.h>
43 #include <String.h>
44 #include <StringView.h>
45 #include <Roster.h>
46 #include <Window.h>
47 
48 #include <InterfacePrivate.h>
49 
50 #include "AlertWindow.h"
51 #include "Constants.h"
52 #include "RefreshWindow.h"
53 #include "MonitorView.h"
54 #include "ScreenSettings.h"
55 #include "Utility.h"
56 
57 /* Note, this headers defines a *private* interface to the Radeon accelerant.
58  * It's a solution that works with the current BeOS interface that Haiku
59  * adopted.
60  * However, it's not a nice and clean solution. Don't use this header in any
61  * application if you can avoid it. No other driver is using this, or should
62  * be using this.
63  * It will be replaced as soon as we introduce an updated accelerant interface
64  * which may even happen before R1 hits the streets.
65  */
66 #include "multimon.h"	// the usual: DANGER WILL, ROBINSON!
67 
68 
69 #undef B_TRANSLATION_CONTEXT
70 #define B_TRANSLATION_CONTEXT "Screen"
71 
72 
73 const char* kBackgroundsSignature = "application/x-vnd.Haiku-Backgrounds";
74 
75 // list of officially supported colour spaces
76 static const struct {
77 	color_space	space;
78 	int32		bits_per_pixel;
79 	const char*	label;
80 } kColorSpaces[] = {
81 	{ B_CMAP8, 8, B_TRANSLATE("8 bits/pixel, 256 colors") },
82 	{ B_RGB15, 15, B_TRANSLATE("15 bits/pixel, 32768 colors") },
83 	{ B_RGB16, 16, B_TRANSLATE("16 bits/pixel, 65536 colors") },
84 	{ B_RGB24, 24, B_TRANSLATE("24 bits/pixel, 16 Million colors") },
85 	{ B_RGB32, 32, B_TRANSLATE("32 bits/pixel, 16 Million colors") }
86 };
87 static const int32 kColorSpaceCount
88 	= sizeof(kColorSpaces) / sizeof(kColorSpaces[0]);
89 
90 // list of standard refresh rates
91 static const int32 kRefreshRates[] = { 60, 70, 72, 75, 80, 85, 95, 100 };
92 static const int32 kRefreshRateCount
93 	= sizeof(kRefreshRates) / sizeof(kRefreshRates[0]);
94 
95 // list of combine modes
96 static const struct {
97 	combine_mode	mode;
98 	const char		*name;
99 } kCombineModes[] = {
100 	{ kCombineDisable, B_TRANSLATE("disable") },
101 	{ kCombineHorizontally, B_TRANSLATE("horizontally") },
102 	{ kCombineVertically, B_TRANSLATE("vertically") }
103 };
104 static const int32 kCombineModeCount
105 	= sizeof(kCombineModes) / sizeof(kCombineModes[0]);
106 
107 
108 static BString
109 tv_standard_to_string(uint32 mode)
110 {
111 	switch (mode) {
112 		case 0:		return "disabled";
113 		case 1:		return "NTSC";
114 		case 2:		return "NTSC Japan";
115 		case 3:		return "PAL BDGHI";
116 		case 4:		return "PAL M";
117 		case 5:		return "PAL N";
118 		case 6:		return "SECAM";
119 		case 101:	return "NTSC 443";
120 		case 102:	return "PAL 60";
121 		case 103:	return "PAL NC";
122 		default:
123 		{
124 			BString name;
125 			name << "??? (" << mode << ")";
126 
127 			return name;
128 		}
129 	}
130 }
131 
132 
133 static void
134 resolution_to_string(screen_mode& mode, BString &string)
135 {
136 	string << mode.width << " x " << mode.height;
137 }
138 
139 
140 static void
141 refresh_rate_to_string(float refresh, BString &string,
142 	bool appendUnit = true, bool alwaysWithFraction = false)
143 {
144 	snprintf(string.LockBuffer(32), 32, "%.*g", refresh >= 100.0 ? 4 : 3,
145 		refresh);
146 	string.UnlockBuffer();
147 
148 	if (appendUnit)
149 		string << " " << B_TRANSLATE("Hz");
150 }
151 
152 
153 static const char*
154 screen_errors(status_t status)
155 {
156 	switch (status) {
157 		case B_ENTRY_NOT_FOUND:
158 			return B_TRANSLATE("Unknown mode");
159 		// TODO: add more?
160 
161 		default:
162 			return strerror(status);
163 	}
164 }
165 
166 
167 //	#pragma mark -
168 
169 
170 ScreenWindow::ScreenWindow(ScreenSettings* settings)
171 	:
172 	BWindow(settings->WindowFrame(), B_TRANSLATE_SYSTEM_NAME("Screen"),
173 		B_TITLED_WINDOW, B_NOT_RESIZABLE | B_NOT_ZOOMABLE
174 		| B_AUTO_UPDATE_SIZE_LIMITS, B_ALL_WORKSPACES),
175 	fIsVesa(false),
176 	fBootWorkspaceApplied(false),
177 	fOtherRefresh(NULL),
178 	fScreenMode(this),
179 	fUndoScreenMode(this),
180 	fModified(false)
181 {
182 	BScreen screen(this);
183 
184 	accelerant_device_info info;
185 	if (screen.GetDeviceInfo(&info) == B_OK
186 		&& !strcasecmp(info.chipset, "VESA"))
187 		fIsVesa = true;
188 
189 	_UpdateOriginal();
190 	_BuildSupportedColorSpaces();
191 	fActive = fSelected = fOriginal;
192 
193 	fSettings = settings;
194 
195 	// we need the "Current Workspace" first to get its height
196 
197 	BPopUpMenu *popUpMenu = new BPopUpMenu(B_TRANSLATE("Current workspace"),
198 		true, true);
199 	fAllWorkspacesItem = new BMenuItem(B_TRANSLATE("All workspaces"),
200 		new BMessage(WORKSPACE_CHECK_MSG));
201 	popUpMenu->AddItem(fAllWorkspacesItem);
202 	BMenuItem *item = new BMenuItem(B_TRANSLATE("Current workspace"),
203 		new BMessage(WORKSPACE_CHECK_MSG));
204 
205 	popUpMenu->AddItem(item);
206 	fAllWorkspacesItem->SetMarked(true);
207 
208 	BMenuField* workspaceMenuField = new BMenuField("WorkspaceMenu", NULL,
209 		popUpMenu);
210 	workspaceMenuField->ResizeToPreferred();
211 
212 	// box on the left with workspace count and monitor view
213 
214 	BBox* screenBox = new BBox("screen box");
215 	BGroupLayout* layout = new BGroupLayout(B_VERTICAL, B_USE_SMALL_SPACING);
216 	layout->SetInsets(B_USE_DEFAULT_SPACING, B_USE_DEFAULT_SPACING,
217 		B_USE_DEFAULT_SPACING, B_USE_DEFAULT_SPACING);
218 	screenBox->SetLayout(layout);
219 
220 	fMonitorInfo = new BStringView("monitor info", "");
221 	fMonitorInfo->SetAlignment(B_ALIGN_CENTER);
222 	screenBox->AddChild(fMonitorInfo);
223 
224 	fMonitorView = new MonitorView(BRect(0.0, 0.0, 80.0, 80.0),
225 		"monitor", screen.Frame().IntegerWidth() + 1,
226 		screen.Frame().IntegerHeight() + 1);
227 	screenBox->AddChild(fMonitorView);
228 
229 	BStringView* workspaces = new BStringView("workspaces",
230 		B_TRANSLATE("Workspaces"));
231 	workspaces->SetAlignment(B_ALIGN_CENTER);
232 
233 	fColumnsControl = new BTextControl(B_TRANSLATE("Columns:"), "0",
234 		new BMessage(kMsgWorkspaceColumnsChanged));
235 	fColumnsControl->SetAlignment(B_ALIGN_RIGHT, B_ALIGN_LEFT);
236 	fRowsControl = new BTextControl(B_TRANSLATE("Rows:"), "0",
237 		new BMessage(kMsgWorkspaceRowsChanged));
238 	fRowsControl->SetAlignment(B_ALIGN_RIGHT, B_ALIGN_LEFT);
239 
240 	float tiny = be_control_look->DefaultItemSpacing() / 4;
241 	screenBox->AddChild(BLayoutBuilder::Group<>()
242 		.AddGroup(B_VERTICAL, B_USE_SMALL_SPACING)
243 			.Add(workspaces)
244 			.AddGrid(0.0, tiny)
245 				// columns
246 				.Add(fColumnsControl->CreateLabelLayoutItem(), 0, 0)
247 				.Add(BSpaceLayoutItem::CreateHorizontalStrut(
248 					B_USE_SMALL_SPACING), 1, 0)
249 				.Add(fColumnsControl->CreateTextViewLayoutItem(), 2, 0)
250 				.Add(BSpaceLayoutItem::CreateHorizontalStrut(tiny), 3, 0)
251 				.Add(_CreateColumnRowButton(true, false), 4, 0)
252 				.Add(_CreateColumnRowButton(true, true), 5, 0)
253 				// rows
254 				.Add(fRowsControl->CreateLabelLayoutItem(), 0, 1)
255 				.Add(BSpaceLayoutItem::CreateHorizontalStrut(
256 					B_USE_SMALL_SPACING), 1, 1)
257 				.Add(fRowsControl->CreateTextViewLayoutItem(), 2, 1)
258 				.Add(BSpaceLayoutItem::CreateHorizontalStrut(tiny), 3, 1)
259 				.Add(_CreateColumnRowButton(false, false), 4, 1)
260 				.Add(_CreateColumnRowButton(false, true), 5, 1)
261 				.End()
262 			.End()
263 		.View());
264 
265 	fBackgroundsButton = new BButton("BackgroundsButton",
266 		B_TRANSLATE("Set background" B_UTF8_ELLIPSIS),
267 		new BMessage(BUTTON_LAUNCH_BACKGROUNDS_MSG));
268 	fBackgroundsButton->SetFontSize(be_plain_font->Size() * 0.9);
269 	screenBox->AddChild(fBackgroundsButton);
270 
271 	// box on the right with screen resolution, etc.
272 
273 	BBox* controlsBox = new BBox("controls box");
274 	controlsBox->SetLabel(workspaceMenuField);
275 	BGroupView* outerControlsView = new BGroupView(B_VERTICAL, 10.0);
276 	outerControlsView->GroupLayout()->SetInsets(10, 10, 10, 10);
277 	controlsBox->AddChild(outerControlsView);
278 
279 	fResolutionMenu = new BPopUpMenu("resolution", true, true);
280 
281 	uint16 maxWidth = 0;
282 	uint16 maxHeight = 0;
283 	uint16 previousWidth = 0;
284 	uint16 previousHeight = 0;
285 	for (int32 i = 0; i < fScreenMode.CountModes(); i++) {
286 		screen_mode mode = fScreenMode.ModeAt(i);
287 
288 		if (mode.width == previousWidth && mode.height == previousHeight)
289 			continue;
290 
291 		previousWidth = mode.width;
292 		previousHeight = mode.height;
293 		if (maxWidth < mode.width)
294 			maxWidth = mode.width;
295 		if (maxHeight < mode.height)
296 			maxHeight = mode.height;
297 
298 		BMessage* message = new BMessage(POP_RESOLUTION_MSG);
299 		message->AddInt32("width", mode.width);
300 		message->AddInt32("height", mode.height);
301 
302 		BString name;
303 		name << mode.width << " x " << mode.height;
304 
305 		fResolutionMenu->AddItem(new BMenuItem(name.String(), message));
306 	}
307 
308 	fMonitorView->SetMaxResolution(maxWidth, maxHeight);
309 
310 	fResolutionField = new BMenuField("ResolutionMenu",
311 		B_TRANSLATE("Resolution:"), fResolutionMenu);
312 
313 	fColorsMenu = new BPopUpMenu("colors", true, false);
314 
315 	for (int32 i = 0; i < kColorSpaceCount; i++) {
316 		if ((fSupportedColorSpaces & (1 << i)) == 0)
317 			continue;
318 
319 		BMessage* message = new BMessage(POP_COLORS_MSG);
320 		message->AddInt32("bits_per_pixel", kColorSpaces[i].bits_per_pixel);
321 		message->AddInt32("space", kColorSpaces[i].space);
322 
323 		BMenuItem* item = new BMenuItem(kColorSpaces[i].label, message);
324 		if (kColorSpaces[i].space == screen.ColorSpace())
325 			fUserSelectedColorSpace = item;
326 
327 		fColorsMenu->AddItem(item);
328 	}
329 
330 	fColorsField = new BMenuField("ColorsMenu", B_TRANSLATE("Colors:"),
331 		fColorsMenu);
332 
333 	fRefreshMenu = new BPopUpMenu("refresh rate", true, true);
334 
335 	float min, max;
336 	if (fScreenMode.GetRefreshLimits(fActive, min, max) != B_OK) {
337 		// if we couldn't obtain the refresh limits, reset to the default
338 		// range. Constraints from detected monitors will fine-tune this
339 		// later.
340 		min = kRefreshRates[0];
341 		max = kRefreshRates[kRefreshRateCount - 1];
342 	}
343 
344 	if (min == max) {
345 		// This is a special case for drivers that only support a single
346 		// frequency, like the VESA driver
347 		BString name;
348 		refresh_rate_to_string(min, name);
349 		BMessage *message = new BMessage(POP_REFRESH_MSG);
350 		message->AddFloat("refresh", min);
351 		BMenuItem *item = new BMenuItem(name.String(), message);
352 		fRefreshMenu->AddItem(item);
353 		item->SetEnabled(false);
354 	} else {
355 		monitor_info info;
356 		if (fScreenMode.GetMonitorInfo(info) == B_OK) {
357 			min = max_c(info.min_vertical_frequency, min);
358 			max = min_c(info.max_vertical_frequency, max);
359 		}
360 
361 		for (int32 i = 0; i < kRefreshRateCount; ++i) {
362 			if (kRefreshRates[i] < min || kRefreshRates[i] > max)
363 				continue;
364 
365 			BString name;
366 			name << kRefreshRates[i] << " " << B_TRANSLATE("Hz");
367 
368 			BMessage *message = new BMessage(POP_REFRESH_MSG);
369 			message->AddFloat("refresh", kRefreshRates[i]);
370 
371 			fRefreshMenu->AddItem(new BMenuItem(name.String(), message));
372 		}
373 
374 		fOtherRefresh = new BMenuItem(B_TRANSLATE("Other" B_UTF8_ELLIPSIS),
375 			new BMessage(POP_OTHER_REFRESH_MSG));
376 		fRefreshMenu->AddItem(fOtherRefresh);
377 	}
378 
379 	fRefreshField = new BMenuField("RefreshMenu", B_TRANSLATE("Refresh rate:"),
380 		fRefreshMenu);
381 
382 	if (_IsVesa())
383 		fRefreshField->Hide();
384 
385 	// enlarged area for multi-monitor settings
386 	{
387 		bool dummy;
388 		uint32 dummy32;
389 		bool multiMonSupport;
390 		bool useLaptopPanelSupport;
391 		bool tvStandardSupport;
392 
393 		multiMonSupport = TestMultiMonSupport(&screen) == B_OK;
394 		useLaptopPanelSupport = GetUseLaptopPanel(&screen, &dummy) == B_OK;
395 		tvStandardSupport = GetTVStandard(&screen, &dummy32) == B_OK;
396 
397 		// even if there is no support, we still create all controls
398 		// to make sure we don't access NULL pointers later on
399 
400 		fCombineMenu = new BPopUpMenu("CombineDisplays",
401 			true, true);
402 
403 		for (int32 i = 0; i < kCombineModeCount; i++) {
404 			BMessage *message = new BMessage(POP_COMBINE_DISPLAYS_MSG);
405 			message->AddInt32("mode", kCombineModes[i].mode);
406 
407 			fCombineMenu->AddItem(new BMenuItem(kCombineModes[i].name,
408 				message));
409 		}
410 
411 		fCombineField = new BMenuField("CombineMenu",
412 			B_TRANSLATE("Combine displays:"), fCombineMenu);
413 
414 		if (!multiMonSupport)
415 			fCombineField->Hide();
416 
417 		fSwapDisplaysMenu = new BPopUpMenu("SwapDisplays",
418 			true, true);
419 
420 		// !order is important - we rely that boolean value == idx
421 		BMessage *message = new BMessage(POP_SWAP_DISPLAYS_MSG);
422 		message->AddBool("swap", false);
423 		fSwapDisplaysMenu->AddItem(new BMenuItem(B_TRANSLATE("no"), message));
424 
425 		message = new BMessage(POP_SWAP_DISPLAYS_MSG);
426 		message->AddBool("swap", true);
427 		fSwapDisplaysMenu->AddItem(new BMenuItem(B_TRANSLATE("yes"), message));
428 
429 		fSwapDisplaysField = new BMenuField("SwapMenu",
430 			B_TRANSLATE("Swap displays:"), fSwapDisplaysMenu);
431 
432 		if (!multiMonSupport)
433 			fSwapDisplaysField->Hide();
434 
435 		fUseLaptopPanelMenu = new BPopUpMenu("UseLaptopPanel",
436 			true, true);
437 
438 		// !order is important - we rely that boolean value == idx
439 		message = new BMessage(POP_USE_LAPTOP_PANEL_MSG);
440 		message->AddBool("use", false);
441 		fUseLaptopPanelMenu->AddItem(new BMenuItem(B_TRANSLATE("if needed"),
442 			message));
443 
444 		message = new BMessage(POP_USE_LAPTOP_PANEL_MSG);
445 		message->AddBool("use", true);
446 		fUseLaptopPanelMenu->AddItem(new BMenuItem(B_TRANSLATE("always"),
447 			message));
448 
449 		fUseLaptopPanelField = new BMenuField("UseLaptopPanel",
450 			B_TRANSLATE("Use laptop panel:"), fUseLaptopPanelMenu);
451 
452 		if (!useLaptopPanelSupport)
453 			fUseLaptopPanelField->Hide();
454 
455 		fTVStandardMenu = new BPopUpMenu("TVStandard", true, true);
456 
457 		// arbitrary limit
458 		uint32 i;
459 		for (i = 0; i < 100; ++i) {
460 			uint32 mode;
461 			if (GetNthSupportedTVStandard(&screen, i, &mode) != B_OK)
462 				break;
463 
464 			BString name = tv_standard_to_string(mode);
465 
466 			message = new BMessage(POP_TV_STANDARD_MSG);
467 			message->AddInt32("tv_standard", mode);
468 
469 			fTVStandardMenu->AddItem(new BMenuItem(name.String(), message));
470 		}
471 
472 		fTVStandardField = new BMenuField("tv standard",
473 			B_TRANSLATE("Video format:"), fTVStandardMenu);
474 		fTVStandardField->SetAlignment(B_ALIGN_RIGHT);
475 
476 		if (!tvStandardSupport || i == 0)
477 			fTVStandardField->Hide();
478 	}
479 
480 	BLayoutBuilder::Group<>(outerControlsView)
481 		.AddGrid(5.0, 5.0)
482 			.AddMenuField(fResolutionField, 0, 0, B_ALIGN_RIGHT)
483 			.AddMenuField(fColorsField, 0, 1, B_ALIGN_RIGHT)
484 			.AddMenuField(fRefreshField, 0, 2, B_ALIGN_RIGHT)
485 			.AddMenuField(fCombineField, 0, 3, B_ALIGN_RIGHT)
486 			.AddMenuField(fSwapDisplaysField, 0, 4, B_ALIGN_RIGHT)
487 			.AddMenuField(fUseLaptopPanelField, 0, 5, B_ALIGN_RIGHT)
488 			.AddMenuField(fTVStandardField, 0, 6, B_ALIGN_RIGHT)
489 		.End();
490 
491 	// TODO: we don't support getting the screen's preferred settings
492 	/* fDefaultsButton = new BButton(buttonRect, "DefaultsButton", "Defaults",
493 		new BMessage(BUTTON_DEFAULTS_MSG));*/
494 
495 	fApplyButton = new BButton("ApplyButton", B_TRANSLATE("Apply"),
496 		new BMessage(BUTTON_APPLY_MSG));
497 	fApplyButton->SetEnabled(false);
498 	BLayoutBuilder::Group<>(outerControlsView)
499 		.AddGlue()
500 			.AddGroup(B_HORIZONTAL)
501 			.AddGlue()
502 			.Add(fApplyButton);
503 
504 	fRevertButton = new BButton("RevertButton", B_TRANSLATE("Revert"),
505 		new BMessage(BUTTON_REVERT_MSG));
506 	fRevertButton->SetEnabled(false);
507 
508 	BLayoutBuilder::Group<>(this, B_VERTICAL, 10.0)
509 		.SetInsets(10, 10, 10, 10)
510 		.AddGroup(B_HORIZONTAL, 10.0)
511 			.AddGroup(B_VERTICAL)
512 				.AddStrut(floor(controlsBox->TopBorderOffset() / 16) - 1)
513 				.Add(screenBox)
514 			.End()
515 			.Add(controlsBox)
516 		.End()
517 		.AddGroup(B_HORIZONTAL, 10.0)
518 			.Add(fRevertButton)
519 			.AddGlue();
520 
521 	_UpdateControls();
522 	_UpdateMonitor();
523 }
524 
525 
526 ScreenWindow::~ScreenWindow()
527 {
528 	delete fSettings;
529 }
530 
531 
532 bool
533 ScreenWindow::QuitRequested()
534 {
535 	fSettings->SetWindowFrame(Frame());
536 
537 	// Write mode of workspace 0 (the boot workspace) to the vesa settings file
538 	screen_mode vesaMode;
539 	if (fBootWorkspaceApplied && fScreenMode.Get(vesaMode, 0) == B_OK) {
540 		status_t status = _WriteVesaModeFile(vesaMode);
541 		if (status < B_OK) {
542 			BString warning = B_TRANSLATE("Could not write VESA mode settings"
543 				" file:\n\t");
544 			warning << strerror(status);
545 			BAlert* alert = new BAlert(B_TRANSLATE("Warning"),
546 				warning.String(), B_TRANSLATE("OK"), NULL,
547 				NULL, B_WIDTH_AS_USUAL, B_WARNING_ALERT);
548 			alert->SetFlags(alert->Flags() | B_CLOSE_ON_ESCAPE);
549 			alert->Go();
550 		}
551 	}
552 
553 	be_app->PostMessage(B_QUIT_REQUESTED);
554 
555 	return BWindow::QuitRequested();
556 }
557 
558 
559 /*!	Update resolution list according to combine mode
560 	(some resolutions may not be combinable due to memory restrictions).
561 */
562 void
563 ScreenWindow::_CheckResolutionMenu()
564 {
565 	for (int32 i = 0; i < fResolutionMenu->CountItems(); i++)
566 		fResolutionMenu->ItemAt(i)->SetEnabled(false);
567 
568 	for (int32 i = 0; i < fScreenMode.CountModes(); i++) {
569 		screen_mode mode = fScreenMode.ModeAt(i);
570 		if (mode.combine != fSelected.combine)
571 			continue;
572 
573 		BString name;
574 		name << mode.width << " x " << mode.height;
575 
576 		BMenuItem *item = fResolutionMenu->FindItem(name.String());
577 		if (item != NULL)
578 			item->SetEnabled(true);
579 	}
580 }
581 
582 
583 /*!	Update color and refresh options according to current mode
584 	(a color space is made active if there is any mode with
585 	given resolution and this colour space; same applies for
586 	refresh rate, though "Other…" is always possible)
587 */
588 void
589 ScreenWindow::_CheckColorMenu()
590 {
591 	int32 supportsAnything = false;
592 	int32 index = 0;
593 
594 	for (int32 i = 0; i < kColorSpaceCount; i++) {
595 		if ((fSupportedColorSpaces & (1 << i)) == 0)
596 			continue;
597 
598 		bool supported = false;
599 
600 		for (int32 j = 0; j < fScreenMode.CountModes(); j++) {
601 			screen_mode mode = fScreenMode.ModeAt(j);
602 
603 			if (fSelected.width == mode.width
604 				&& fSelected.height == mode.height
605 				&& kColorSpaces[i].space == mode.space
606 				&& fSelected.combine == mode.combine) {
607 				supportsAnything = true;
608 				supported = true;
609 				break;
610 			}
611 		}
612 
613 		BMenuItem* item = fColorsMenu->ItemAt(index++);
614 		if (item)
615 			item->SetEnabled(supported);
616 	}
617 
618 	fColorsField->SetEnabled(supportsAnything);
619 
620 	if (!supportsAnything)
621 		return;
622 
623 	// Make sure a valid item is selected
624 
625 	BMenuItem* item = fColorsMenu->FindMarked();
626 	bool changed = false;
627 
628 	if (item != fUserSelectedColorSpace) {
629 		if (fUserSelectedColorSpace != NULL
630 			&& fUserSelectedColorSpace->IsEnabled()) {
631 			fUserSelectedColorSpace->SetMarked(true);
632 			item = fUserSelectedColorSpace;
633 			changed = true;
634 		}
635 	}
636 	if (item != NULL && !item->IsEnabled()) {
637 		// find the next best item
638 		int32 index = fColorsMenu->IndexOf(item);
639 		bool found = false;
640 
641 		for (int32 i = index + 1; i < fColorsMenu->CountItems(); i++) {
642 			item = fColorsMenu->ItemAt(i);
643 			if (item->IsEnabled()) {
644 				found = true;
645 				break;
646 			}
647 		}
648 		if (!found) {
649 			// search backwards as well
650 			for (int32 i = index - 1; i >= 0; i--) {
651 				item = fColorsMenu->ItemAt(i);
652 				if (item->IsEnabled())
653 					break;
654 			}
655 		}
656 
657 		item->SetMarked(true);
658 		changed = true;
659 	}
660 
661 	if (changed) {
662 		// Update selected space
663 
664 		BMessage* message = item->Message();
665 		int32 space;
666 		if (message->FindInt32("space", &space) == B_OK) {
667 			fSelected.space = (color_space)space;
668 			_UpdateColorLabel();
669 		}
670 	}
671 }
672 
673 
674 /*!	Enable/disable refresh options according to current mode. */
675 void
676 ScreenWindow::_CheckRefreshMenu()
677 {
678 	float min, max;
679 	if (fScreenMode.GetRefreshLimits(fSelected, min, max) != B_OK || min == max)
680 		return;
681 
682 	for (int32 i = fRefreshMenu->CountItems(); i-- > 0;) {
683 		BMenuItem* item = fRefreshMenu->ItemAt(i);
684 		BMessage* message = item->Message();
685 		float refresh;
686 		if (message != NULL && message->FindFloat("refresh", &refresh) == B_OK)
687 			item->SetEnabled(refresh >= min && refresh <= max);
688 	}
689 }
690 
691 
692 /*!	Activate appropriate menu item according to selected refresh rate */
693 void
694 ScreenWindow::_UpdateRefreshControl()
695 {
696 	for (int32 i = 0; i < fRefreshMenu->CountItems(); i++) {
697 		BMenuItem* item = fRefreshMenu->ItemAt(i);
698 		if (item->Message()->FindFloat("refresh") == fSelected.refresh) {
699 			item->SetMarked(true);
700 			// "Other" items only contains a refresh rate when active
701 			fOtherRefresh->SetLabel(B_TRANSLATE("Other" B_UTF8_ELLIPSIS));
702 			return;
703 		}
704 	}
705 
706 	// this is a non-standard refresh rate
707 	if (fOtherRefresh != NULL) {
708 		fOtherRefresh->Message()->ReplaceFloat("refresh", fSelected.refresh);
709 		fOtherRefresh->SetMarked(true);
710 
711 		BString string;
712 		refresh_rate_to_string(fSelected.refresh, string);
713 		fRefreshMenu->Superitem()->SetLabel(string.String());
714 
715 		string.Append(B_TRANSLATE("/other" B_UTF8_ELLIPSIS));
716 		fOtherRefresh->SetLabel(string.String());
717 	}
718 }
719 
720 
721 void
722 ScreenWindow::_UpdateMonitorView()
723 {
724 	BMessage updateMessage(UPDATE_DESKTOP_MSG);
725 	updateMessage.AddInt32("width", fSelected.width);
726 	updateMessage.AddInt32("height", fSelected.height);
727 
728 	PostMessage(&updateMessage, fMonitorView);
729 }
730 
731 
732 void
733 ScreenWindow::_UpdateControls()
734 {
735 	_UpdateWorkspaceButtons();
736 
737 	BMenuItem* item = fSwapDisplaysMenu->ItemAt((int32)fSelected.swap_displays);
738 	if (item != NULL && !item->IsMarked())
739 		item->SetMarked(true);
740 
741 	item = fUseLaptopPanelMenu->ItemAt((int32)fSelected.use_laptop_panel);
742 	if (item != NULL && !item->IsMarked())
743 		item->SetMarked(true);
744 
745 	for (int32 i = 0; i < fTVStandardMenu->CountItems(); i++) {
746 		item = fTVStandardMenu->ItemAt(i);
747 
748 		uint32 tvStandard;
749 		item->Message()->FindInt32("tv_standard", (int32 *)&tvStandard);
750 		if (tvStandard == fSelected.tv_standard) {
751 			if (!item->IsMarked())
752 				item->SetMarked(true);
753 			break;
754 		}
755 	}
756 
757 	_CheckResolutionMenu();
758 	_CheckColorMenu();
759 	_CheckRefreshMenu();
760 
761 	BString string;
762 	resolution_to_string(fSelected, string);
763 	item = fResolutionMenu->FindItem(string.String());
764 
765 	if (item != NULL) {
766 		if (!item->IsMarked())
767 			item->SetMarked(true);
768 	} else {
769 		// this is bad luck - if mode has been set via screen references,
770 		// this case cannot occur; there are three possible solutions:
771 		// 1. add a new resolution to list
772 		//    - we had to remove it as soon as a "valid" one is selected
773 		//    - we don't know which frequencies/bit depths are supported
774 		//    - as long as we haven't the GMT formula to create
775 		//      parameters for any resolution given, we cannot
776 		//      really set current mode - it's just not in the list
777 		// 2. choose nearest resolution
778 		//    - probably a good idea, but implies coding and testing
779 		// 3. choose lowest resolution
780 		//    - do you really think we are so lazy? yes, we are
781 		item = fResolutionMenu->ItemAt(0);
782 		if (item)
783 			item->SetMarked(true);
784 
785 		// okay - at least we set menu label to active resolution
786 		fResolutionMenu->Superitem()->SetLabel(string.String());
787 	}
788 
789 	// mark active combine mode
790 	for (int32 i = 0; i < kCombineModeCount; i++) {
791 		if (kCombineModes[i].mode == fSelected.combine) {
792 			item = fCombineMenu->ItemAt(i);
793 			if (item != NULL && !item->IsMarked())
794 				item->SetMarked(true);
795 			break;
796 		}
797 	}
798 
799 	item = fColorsMenu->ItemAt(0);
800 
801 	for (int32 i = 0, index = 0; i <  kColorSpaceCount; i++) {
802 		if ((fSupportedColorSpaces & (1 << i)) == 0)
803 			continue;
804 
805 		if (kColorSpaces[i].space == fSelected.space) {
806 			item = fColorsMenu->ItemAt(index);
807 			break;
808 		}
809 
810 		index++;
811 	}
812 
813 	if (item != NULL && !item->IsMarked())
814 		item->SetMarked(true);
815 
816 	_UpdateColorLabel();
817 	_UpdateMonitorView();
818 	_UpdateRefreshControl();
819 
820 	_CheckApplyEnabled();
821 }
822 
823 
824 /*! Reflect active mode in chosen settings */
825 void
826 ScreenWindow::_UpdateActiveMode()
827 {
828 	_UpdateActiveMode(current_workspace());
829 }
830 
831 
832 void
833 ScreenWindow::_UpdateActiveMode(int32 workspace)
834 {
835 	// Usually, this function gets called after a mode
836 	// has been set manually; still, as the graphics driver
837 	// is free to fiddle with mode passed, we better ask
838 	// what kind of mode we actually got
839 	if (fScreenMode.Get(fActive, workspace) == B_OK) {
840 		fSelected = fActive;
841 
842 		_UpdateMonitor();
843 		_BuildSupportedColorSpaces();
844 		_UpdateControls();
845 	}
846 }
847 
848 
849 void
850 ScreenWindow::_UpdateWorkspaceButtons()
851 {
852 	uint32 columns;
853 	uint32 rows;
854 	BPrivate::get_workspaces_layout(&columns, &rows);
855 
856 	char text[32];
857 	snprintf(text, sizeof(text), "%" B_PRId32, columns);
858 	fColumnsControl->SetText(text);
859 
860 	snprintf(text, sizeof(text), "%" B_PRId32, rows);
861 	fRowsControl->SetText(text);
862 
863 	_GetColumnRowButton(true, false)->SetEnabled(columns != 1 && rows != 32);
864 	_GetColumnRowButton(true, true)->SetEnabled((columns + 1) * rows < 32);
865 	_GetColumnRowButton(false, false)->SetEnabled(rows != 1 && columns != 32);
866 	_GetColumnRowButton(false, true)->SetEnabled(columns * (rows + 1) < 32);
867 }
868 
869 
870 void
871 ScreenWindow::ScreenChanged(BRect frame, color_space mode)
872 {
873 	// move window on screen, if necessary
874 	if (frame.right <= Frame().right
875 		&& frame.bottom <= Frame().bottom) {
876 		MoveTo((frame.Width() - Frame().Width()) / 2,
877 			(frame.Height() - Frame().Height()) / 2);
878 	}
879 }
880 
881 
882 void
883 ScreenWindow::WorkspaceActivated(int32 workspace, bool state)
884 {
885 	if (fScreenMode.GetOriginalMode(fOriginal, workspace) == B_OK) {
886 		_UpdateActiveMode(workspace);
887 
888 		BMessage message(UPDATE_DESKTOP_COLOR_MSG);
889 		PostMessage(&message, fMonitorView);
890 	}
891 }
892 
893 
894 void
895 ScreenWindow::MessageReceived(BMessage* message)
896 {
897 	switch (message->what) {
898 		case WORKSPACE_CHECK_MSG:
899 			_CheckApplyEnabled();
900 			break;
901 
902 		case kMsgWorkspaceLayoutChanged:
903 		{
904 			int32 deltaX = 0;
905 			int32 deltaY = 0;
906 			message->FindInt32("delta_x", &deltaX);
907 			message->FindInt32("delta_y", &deltaY);
908 
909 			if (deltaX == 0 && deltaY == 0)
910 				break;
911 
912 			uint32 newColumns;
913 			uint32 newRows;
914 			BPrivate::get_workspaces_layout(&newColumns, &newRows);
915 
916 			newColumns += deltaX;
917 			newRows += deltaY;
918 			BPrivate::set_workspaces_layout(newColumns, newRows);
919 
920 			_UpdateWorkspaceButtons();
921 			_CheckApplyEnabled();
922 			break;
923 		}
924 
925 		case kMsgWorkspaceColumnsChanged:
926 		{
927 			uint32 newColumns = strtoul(fColumnsControl->Text(), NULL, 10);
928 
929 			uint32 rows;
930 			BPrivate::get_workspaces_layout(NULL, &rows);
931 			BPrivate::set_workspaces_layout(newColumns, rows);
932 
933 			_UpdateWorkspaceButtons();
934 			_CheckApplyEnabled();
935 			break;
936 		}
937 
938 		case kMsgWorkspaceRowsChanged:
939 		{
940 			uint32 newRows = strtoul(fRowsControl->Text(), NULL, 10);
941 
942 			uint32 columns;
943 			BPrivate::get_workspaces_layout(&columns, NULL);
944 			BPrivate::set_workspaces_layout(columns, newRows);
945 
946 			_UpdateWorkspaceButtons();
947 			_CheckApplyEnabled();
948 			break;
949 		}
950 
951 		case POP_RESOLUTION_MSG:
952 		{
953 			message->FindInt32("width", &fSelected.width);
954 			message->FindInt32("height", &fSelected.height);
955 
956 			_CheckColorMenu();
957 			_CheckRefreshMenu();
958 
959 			_UpdateMonitorView();
960 			_UpdateRefreshControl();
961 
962 			_CheckApplyEnabled();
963 			break;
964 		}
965 
966 		case POP_COLORS_MSG:
967 		{
968 			int32 space;
969 			if (message->FindInt32("space", &space) != B_OK)
970 				break;
971 
972 			int32 index;
973 			if (message->FindInt32("index", &index) == B_OK
974 				&& fColorsMenu->ItemAt(index) != NULL)
975 				fUserSelectedColorSpace = fColorsMenu->ItemAt(index);
976 
977 			fSelected.space = (color_space)space;
978 			_UpdateColorLabel();
979 
980 			_CheckApplyEnabled();
981 			break;
982 		}
983 
984 		case POP_REFRESH_MSG:
985 		{
986 			message->FindFloat("refresh", &fSelected.refresh);
987 			fOtherRefresh->SetLabel(B_TRANSLATE("Other" B_UTF8_ELLIPSIS));
988 				// revert "Other…" label - it might have a refresh rate prefix
989 
990 			_CheckApplyEnabled();
991 			break;
992 		}
993 
994 		case POP_OTHER_REFRESH_MSG:
995 		{
996 			// make sure menu shows something useful
997 			_UpdateRefreshControl();
998 
999 			float min = 0, max = 999;
1000 			fScreenMode.GetRefreshLimits(fSelected, min, max);
1001 			if (min < gMinRefresh)
1002 				min = gMinRefresh;
1003 			if (max > gMaxRefresh)
1004 				max = gMaxRefresh;
1005 
1006 			monitor_info info;
1007 			if (fScreenMode.GetMonitorInfo(info) == B_OK) {
1008 				min = max_c(info.min_vertical_frequency, min);
1009 				max = min_c(info.max_vertical_frequency, max);
1010 			}
1011 
1012 			RefreshWindow *fRefreshWindow = new RefreshWindow(
1013 				fRefreshField->ConvertToScreen(B_ORIGIN), fSelected.refresh,
1014 				min, max);
1015 			fRefreshWindow->Show();
1016 			break;
1017 		}
1018 
1019 		case SET_CUSTOM_REFRESH_MSG:
1020 		{
1021 			// user pressed "done" in "Other…" refresh dialog;
1022 			// select the refresh rate chosen
1023 			message->FindFloat("refresh", &fSelected.refresh);
1024 
1025 			_UpdateRefreshControl();
1026 			_CheckApplyEnabled();
1027 			break;
1028 		}
1029 
1030 		case POP_COMBINE_DISPLAYS_MSG:
1031 		{
1032 			// new combine mode has bee chosen
1033 			int32 mode;
1034 			if (message->FindInt32("mode", &mode) == B_OK)
1035 				fSelected.combine = (combine_mode)mode;
1036 
1037 			_CheckResolutionMenu();
1038 			_CheckApplyEnabled();
1039 			break;
1040 		}
1041 
1042 		case POP_SWAP_DISPLAYS_MSG:
1043 			message->FindBool("swap", &fSelected.swap_displays);
1044 			_CheckApplyEnabled();
1045 			break;
1046 
1047 		case POP_USE_LAPTOP_PANEL_MSG:
1048 			message->FindBool("use", &fSelected.use_laptop_panel);
1049 			_CheckApplyEnabled();
1050 			break;
1051 
1052 		case POP_TV_STANDARD_MSG:
1053 			message->FindInt32("tv_standard", (int32 *)&fSelected.tv_standard);
1054 			_CheckApplyEnabled();
1055 			break;
1056 
1057 		case BUTTON_LAUNCH_BACKGROUNDS_MSG:
1058 			if (be_roster->Launch(kBackgroundsSignature) == B_ALREADY_RUNNING) {
1059 				app_info info;
1060 				be_roster->GetAppInfo(kBackgroundsSignature, &info);
1061 				be_roster->ActivateApp(info.team);
1062 			}
1063 			break;
1064 
1065 		case BUTTON_DEFAULTS_MSG:
1066 		{
1067 			// TODO: get preferred settings of screen
1068 			fSelected.width = 640;
1069 			fSelected.height = 480;
1070 			fSelected.space = B_CMAP8;
1071 			fSelected.refresh = 60.0;
1072 			fSelected.combine = kCombineDisable;
1073 			fSelected.swap_displays = false;
1074 			fSelected.use_laptop_panel = false;
1075 			fSelected.tv_standard = 0;
1076 
1077 			// TODO: workspace defaults
1078 
1079 			_UpdateControls();
1080 			break;
1081 		}
1082 
1083 		case BUTTON_UNDO_MSG:
1084 			fUndoScreenMode.Revert();
1085 			_UpdateActiveMode();
1086 			break;
1087 
1088 		case BUTTON_REVERT_MSG:
1089 		{
1090 			fModified = false;
1091 			fBootWorkspaceApplied = false;
1092 
1093 			// ScreenMode::Revert() assumes that we first set the correct
1094 			// number of workspaces
1095 
1096 			BPrivate::set_workspaces_layout(fOriginalWorkspacesColumns,
1097 				fOriginalWorkspacesRows);
1098 			_UpdateWorkspaceButtons();
1099 
1100 			fScreenMode.Revert();
1101 			_UpdateActiveMode();
1102 			break;
1103 		}
1104 
1105 		case BUTTON_APPLY_MSG:
1106 			_Apply();
1107 			break;
1108 
1109 		case MAKE_INITIAL_MSG:
1110 			// user pressed "keep" in confirmation dialog
1111 			fModified = true;
1112 			_UpdateActiveMode();
1113 			break;
1114 
1115 		default:
1116 			BWindow::MessageReceived(message);
1117 			break;
1118 	}
1119 }
1120 
1121 
1122 status_t
1123 ScreenWindow::_WriteVesaModeFile(const screen_mode& mode) const
1124 {
1125 	BPath path;
1126 	status_t status = find_directory(B_USER_SETTINGS_DIRECTORY, &path, true);
1127 	if (status < B_OK)
1128 		return status;
1129 
1130 	path.Append("kernel/drivers");
1131 	status = create_directory(path.Path(), 0755);
1132 	if (status < B_OK)
1133 		return status;
1134 
1135 	path.Append("vesa");
1136 	BFile file;
1137 	status = file.SetTo(path.Path(), B_CREATE_FILE | B_WRITE_ONLY | B_ERASE_FILE);
1138 	if (status < B_OK)
1139 		return status;
1140 
1141 	char buffer[256];
1142 	snprintf(buffer, sizeof(buffer), "mode %" B_PRId32 " %" B_PRId32 " %"
1143 		B_PRId32 "\n", mode.width, mode.height, mode.BitsPerPixel());
1144 
1145 	ssize_t bytesWritten = file.Write(buffer, strlen(buffer));
1146 	if (bytesWritten < B_OK)
1147 		return bytesWritten;
1148 
1149 	return B_OK;
1150 }
1151 
1152 
1153 BButton*
1154 ScreenWindow::_CreateColumnRowButton(bool columns, bool plus)
1155 {
1156 	BMessage* message = new BMessage(kMsgWorkspaceLayoutChanged);
1157 	message->AddInt32("delta_x", columns ? (plus ? 1 : -1) : 0);
1158 	message->AddInt32("delta_y", !columns ? (plus ? 1 : -1) : 0);
1159 
1160 	BButton* button = new BButton(plus ? "+" : "-", message);
1161 	button->SetFontSize(be_plain_font->Size() * 0.9);
1162 
1163 	BSize size = button->MinSize();
1164 	size.width = button->StringWidth("+") + 16;
1165 	button->SetExplicitMinSize(size);
1166 	button->SetExplicitMaxSize(size);
1167 
1168 	fWorkspacesButtons[(columns ? 0 : 2) + (plus ? 1 : 0)] = button;
1169 	return button;
1170 }
1171 
1172 
1173 BButton*
1174 ScreenWindow::_GetColumnRowButton(bool columns, bool plus)
1175 {
1176 	return fWorkspacesButtons[(columns ? 0 : 2) + (plus ? 1 : 0)];
1177 }
1178 
1179 
1180 void
1181 ScreenWindow::_BuildSupportedColorSpaces()
1182 {
1183 	fSupportedColorSpaces = 0;
1184 
1185 	for (int32 i = 0; i < kColorSpaceCount; i++) {
1186 		for (int32 j = 0; j < fScreenMode.CountModes(); j++) {
1187 			if (fScreenMode.ModeAt(j).space == kColorSpaces[i].space) {
1188 				fSupportedColorSpaces |= 1 << i;
1189 				break;
1190 			}
1191 		}
1192 	}
1193 }
1194 
1195 
1196 void
1197 ScreenWindow::_CheckApplyEnabled()
1198 {
1199 	fApplyButton->SetEnabled(fSelected != fActive
1200 		|| fAllWorkspacesItem->IsMarked());
1201 
1202 	uint32 columns;
1203 	uint32 rows;
1204 	BPrivate::get_workspaces_layout(&columns, &rows);
1205 
1206 	fRevertButton->SetEnabled(columns != fOriginalWorkspacesColumns
1207 		|| rows != fOriginalWorkspacesRows
1208 		|| fSelected != fOriginal);
1209 }
1210 
1211 
1212 void
1213 ScreenWindow::_UpdateOriginal()
1214 {
1215 	BPrivate::get_workspaces_layout(&fOriginalWorkspacesColumns,
1216 		&fOriginalWorkspacesRows);
1217 
1218 	fScreenMode.Get(fOriginal);
1219 	fScreenMode.UpdateOriginalModes();
1220 }
1221 
1222 
1223 void
1224 ScreenWindow::_UpdateMonitor()
1225 {
1226 	monitor_info info;
1227 	float diagonalInches;
1228 	status_t status = fScreenMode.GetMonitorInfo(info, &diagonalInches);
1229 	if (status == B_OK) {
1230 		char text[512];
1231 		snprintf(text, sizeof(text), "%s%s%s %g\"", info.vendor,
1232 			info.name[0] ? " " : "", info.name, diagonalInches);
1233 
1234 		fMonitorInfo->SetText(text);
1235 
1236 		if (fMonitorInfo->IsHidden())
1237 			fMonitorInfo->Show();
1238 	} else {
1239 		if (!fMonitorInfo->IsHidden())
1240 			fMonitorInfo->Hide();
1241 	}
1242 
1243 	char text[512];
1244 	size_t length = 0;
1245 	text[0] = 0;
1246 
1247 	if (status == B_OK) {
1248 		if (info.min_horizontal_frequency != 0
1249 			&& info.min_vertical_frequency != 0
1250 			&& info.max_pixel_clock != 0) {
1251 			length = snprintf(text, sizeof(text),
1252 				B_TRANSLATE("Horizonal frequency:\t%lu - %lu kHz\n"
1253 				"Vertical frequency:\t%lu - %lu Hz\n\n"
1254 				"Maximum pixel clock:\t%g MHz"),
1255 				info.min_horizontal_frequency, info.max_horizontal_frequency,
1256 				info.min_vertical_frequency, info.max_vertical_frequency,
1257 				info.max_pixel_clock / 1000.0);
1258 		}
1259 		if (info.serial_number[0] && length < sizeof(text)) {
1260 			length += snprintf(text + length, sizeof(text) - length,
1261 				B_TRANSLATE("%sSerial no.: %s"), length ? "\n\n" : "",
1262 				info.serial_number);
1263 			if (info.produced.week != 0 && info.produced.year != 0
1264 				&& length < sizeof(text)) {
1265 				length += snprintf(text + length, sizeof(text) - length,
1266 					" (%u/%u)", info.produced.week, info.produced.year);
1267 	 		}
1268 		}
1269 	}
1270 
1271 	// Add info about the graphics device
1272 
1273 	accelerant_device_info deviceInfo;
1274 	if (fScreenMode.GetDeviceInfo(deviceInfo) == B_OK
1275 		&& length < sizeof(text)) {
1276 		if (deviceInfo.name[0] && deviceInfo.chipset[0]) {
1277 			length += snprintf(text + length, sizeof(text) - length,
1278 				"%s%s (%s)", length != 0 ? "\n\n" : "", deviceInfo.name,
1279 				deviceInfo.chipset);
1280 		} else if (deviceInfo.name[0] || deviceInfo.chipset[0]) {
1281 			length += snprintf(text + length, sizeof(text) - length,
1282 				"%s%s", length != 0 ? "\n\n" : "", deviceInfo.name[0]
1283 					? deviceInfo.name : deviceInfo.chipset);
1284 		}
1285 	}
1286 
1287 	if (text[0])
1288 		fMonitorView->SetToolTip(text);
1289 }
1290 
1291 
1292 void
1293 ScreenWindow::_UpdateColorLabel()
1294 {
1295 	BString string;
1296 	string << fSelected.BitsPerPixel() << " " << B_TRANSLATE("bits/pixel");
1297 	fColorsMenu->Superitem()->SetLabel(string.String());
1298 }
1299 
1300 
1301 void
1302 ScreenWindow::_Apply()
1303 {
1304 	// make checkpoint, so we can undo these changes
1305 	fUndoScreenMode.UpdateOriginalModes();
1306 
1307 	status_t status = fScreenMode.Set(fSelected);
1308 	if (status == B_OK) {
1309 		// use the mode that has eventually been set and
1310 		// thus we know to be working; it can differ from
1311 		// the mode selected by user due to hardware limitation
1312 		display_mode newMode;
1313 		BScreen screen(this);
1314 		screen.GetMode(&newMode);
1315 
1316 		if (fAllWorkspacesItem->IsMarked()) {
1317 			int32 originatingWorkspace = current_workspace();
1318 			for (int32 i = 0; i < count_workspaces(); i++) {
1319 				if (i != originatingWorkspace)
1320 					screen.SetMode(i, &newMode, true);
1321 			}
1322 			fBootWorkspaceApplied = true;
1323 		} else {
1324 			if (current_workspace() == 0)
1325 				fBootWorkspaceApplied = true;
1326 		}
1327 
1328 		fActive = fSelected;
1329 
1330 		// TODO: only show alert when this is an unknown mode
1331 		BWindow* window = new AlertWindow(this);
1332 		window->Show();
1333 	} else {
1334 		char message[256];
1335 		snprintf(message, sizeof(message),
1336 			B_TRANSLATE("The screen mode could not be set:\n\t%s\n"),
1337 			screen_errors(status));
1338 		BAlert* alert = new BAlert(B_TRANSLATE("Warning"), message,
1339 			B_TRANSLATE("OK"), NULL, NULL,
1340 			B_WIDTH_AS_USUAL, B_WARNING_ALERT);
1341 		alert->SetFlags(alert->Flags() | B_CLOSE_ON_ESCAPE);
1342 		alert->Go();
1343 	}
1344 }
1345