all repos — mgba @ 12a014e726204816fbb323bd05cc972ee50b2ad8

mGBA Game Boy Advance Emulator

src/platform/qt/Window.cpp (view raw)

  1#include "Window.h"
  2
  3#include <QFileDialog>
  4#include <QKeyEvent>
  5#include <QKeySequence>
  6#include <QMenuBar>
  7#include <QStackedLayout>
  8
  9#include "ConfigController.h"
 10#include "GameController.h"
 11#include "GBAKeyEditor.h"
 12#include "GDBController.h"
 13#include "GDBWindow.h"
 14#include "GIFView.h"
 15#include "LoadSaveState.h"
 16#include "LogView.h"
 17#include "VideoView.h"
 18
 19extern "C" {
 20#include "platform/commandline.h"
 21}
 22
 23using namespace QGBA;
 24
 25Window::Window(ConfigController* config, QWidget* parent)
 26	: QMainWindow(parent)
 27	, m_logView(new LogView())
 28	, m_stateWindow(nullptr)
 29	, m_screenWidget(new WindowBackground())
 30	, m_logo(":/res/mgba-1024.png")
 31	, m_config(config)
 32#ifdef USE_FFMPEG
 33	, m_videoView(nullptr)
 34#endif
 35#ifdef USE_MAGICK
 36	, m_gifView(nullptr)
 37#endif
 38#ifdef USE_GDB_STUB
 39	, m_gdbController(nullptr)
 40#endif
 41{
 42	setWindowTitle(PROJECT_NAME);
 43	m_controller = new GameController(this);
 44	m_controller->setInputController(&m_inputController);
 45
 46	QGLFormat format(QGLFormat(QGL::Rgba | QGL::DoubleBuffer));
 47	format.setSwapInterval(1);
 48	m_display = new Display(format);
 49
 50	m_screenWidget->setMinimumSize(m_display->minimumSize());
 51	m_screenWidget->setSizePolicy(m_display->sizePolicy());
 52	m_screenWidget->setSizeHint(m_display->minimumSize() * 2);
 53	setCentralWidget(m_screenWidget);
 54
 55	connect(m_controller, SIGNAL(gameStarted(GBAThread*)), this, SLOT(gameStarted(GBAThread*)));
 56	connect(m_controller, SIGNAL(gameStopped(GBAThread*)), m_display, SLOT(stopDrawing()));
 57	connect(m_controller, SIGNAL(gameStopped(GBAThread*)), this, SLOT(gameStopped()));
 58	connect(m_controller, SIGNAL(stateLoaded(GBAThread*)), m_display, SLOT(forceDraw()));
 59	connect(m_controller, SIGNAL(gamePaused(GBAThread*)), m_display, SLOT(pauseDrawing()));
 60#ifndef Q_OS_MAC
 61	connect(m_controller, SIGNAL(gamePaused(GBAThread*)), menuBar(), SLOT(show()));
 62	connect(m_controller, &GameController::gameUnpaused, [this]() {
 63		if(isFullScreen()) {
 64			menuBar()->hide();
 65		}
 66	});
 67#endif
 68	connect(m_controller, SIGNAL(gameUnpaused(GBAThread*)), m_display, SLOT(unpauseDrawing()));
 69	connect(m_controller, SIGNAL(postLog(int, const QString&)), m_logView, SLOT(postLog(int, const QString&)));
 70	connect(m_logView, SIGNAL(levelsSet(int)), m_controller, SLOT(setLogLevel(int)));
 71	connect(m_logView, SIGNAL(levelsEnabled(int)), m_controller, SLOT(enableLogLevel(int)));
 72	connect(m_logView, SIGNAL(levelsDisabled(int)), m_controller, SLOT(disableLogLevel(int)));
 73	connect(this, SIGNAL(startDrawing(const uint32_t*, GBAThread*)), m_display, SLOT(startDrawing(const uint32_t*, GBAThread*)), Qt::QueuedConnection);
 74	connect(this, SIGNAL(shutdown()), m_display, SLOT(stopDrawing()));
 75	connect(this, SIGNAL(shutdown()), m_controller, SLOT(closeGame()));
 76	connect(this, SIGNAL(shutdown()), m_logView, SLOT(hide()));
 77	connect(this, SIGNAL(audioBufferSamplesChanged(int)), m_controller, SLOT(setAudioBufferSamples(int)));
 78	connect(this, SIGNAL(fpsTargetChanged(float)), m_controller, SLOT(setFPSTarget(float)));
 79
 80	m_logView->setLevels(GBA_LOG_WARN | GBA_LOG_ERROR | GBA_LOG_FATAL);
 81
 82	setupMenu(menuBar());
 83}
 84
 85Window::~Window() {
 86	delete m_logView;
 87
 88#ifdef USE_FFMPEG
 89	delete m_videoView;
 90#endif
 91
 92#ifdef USE_MAGICK
 93	delete m_gifView;
 94#endif
 95}
 96
 97void Window::argumentsPassed(GBAArguments* args) {
 98	loadConfig();
 99
100	if (args->patch) {
101		m_controller->loadPatch(args->patch);
102	}
103
104	if (args->fname) {
105		m_controller->loadGame(args->fname, args->dirmode);
106	}
107}
108
109void Window::setConfig(ConfigController* config) {
110	m_config = config;
111}
112
113void Window::loadConfig() {
114	const GBAOptions* opts = m_config->options();
115
116	m_logView->setLevels(opts->logLevel);
117
118	m_controller->setFrameskip(opts->frameskip);
119	m_controller->setAudioSync(opts->audioSync);
120	m_controller->setVideoSync(opts->videoSync);
121
122	if (opts->bios) {
123		m_controller->loadBIOS(opts->bios);
124	}
125
126	if (opts->fpsTarget) {
127		emit fpsTargetChanged(opts->fpsTarget);
128	}
129
130	if (opts->audioBuffers) {
131		emit audioBufferSamplesChanged(opts->audioBuffers);
132	}
133
134	if (opts->width && opts->height) {
135		m_screenWidget->setSizeHint(QSize(opts->width, opts->height));
136	}
137
138	m_inputController.setConfiguration(m_config);
139}
140
141void Window::saveConfig() {
142	m_config->write();
143}
144
145void Window::selectROM() {
146	QString filename = QFileDialog::getOpenFileName(this, tr("Select ROM"));
147	if (!filename.isEmpty()) {
148		m_controller->loadGame(filename);
149	}
150}
151
152void Window::selectBIOS() {
153	QString filename = QFileDialog::getOpenFileName(this, tr("Select BIOS"));
154	if (!filename.isEmpty()) {
155		m_controller->loadBIOS(filename);
156	}
157}
158
159void Window::selectPatch() {
160	QString filename = QFileDialog::getOpenFileName(this, tr("Select patch"), QString(), tr("Patches (*.ips *.ups)"));
161	if (!filename.isEmpty()) {
162		m_controller->loadPatch(filename);
163	}
164}
165
166void Window::openKeymapWindow() {
167	GBAKeyEditor* keyEditor = new GBAKeyEditor(&m_inputController, InputController::KEYBOARD);
168	connect(this, SIGNAL(shutdown()), keyEditor, SLOT(close()));
169	keyEditor->setAttribute(Qt::WA_DeleteOnClose);
170	keyEditor->show();
171}
172
173#ifdef USE_FFMPEG
174void Window::openVideoWindow() {
175	if (!m_videoView) {
176		m_videoView = new VideoView();
177		connect(m_videoView, SIGNAL(recordingStarted(GBAAVStream*)), m_controller, SLOT(setAVStream(GBAAVStream*)));
178		connect(m_videoView, SIGNAL(recordingStopped()), m_controller, SLOT(clearAVStream()), Qt::DirectConnection);
179		connect(m_controller, SIGNAL(gameStopped(GBAThread*)), m_videoView, SLOT(stopRecording()));
180		connect(m_controller, SIGNAL(gameStopped(GBAThread*)), m_videoView, SLOT(close()));
181		connect(this, SIGNAL(shutdown()), m_videoView, SLOT(close()));
182	}
183	m_videoView->show();
184}
185#endif
186
187#ifdef USE_MAGICK
188void Window::openGIFWindow() {
189	if (!m_gifView) {
190		m_gifView = new GIFView();
191		connect(m_gifView, SIGNAL(recordingStarted(GBAAVStream*)), m_controller, SLOT(setAVStream(GBAAVStream*)));
192		connect(m_gifView, SIGNAL(recordingStopped()), m_controller, SLOT(clearAVStream()), Qt::DirectConnection);
193		connect(m_controller, SIGNAL(gameStopped(GBAThread*)), m_gifView, SLOT(stopRecording()));
194		connect(m_controller, SIGNAL(gameStopped(GBAThread*)), m_gifView, SLOT(close()));
195		connect(this, SIGNAL(shutdown()), m_gifView, SLOT(close()));
196	}
197	m_gifView->show();
198}
199#endif
200
201#ifdef USE_GDB_STUB
202void Window::gdbOpen() {
203	if (!m_gdbController) {
204		m_gdbController = new GDBController(m_controller, this);
205	}
206	GDBWindow* window = new GDBWindow(m_gdbController);
207	window->show();
208}
209#endif
210
211void Window::keyPressEvent(QKeyEvent* event) {
212	if (event->isAutoRepeat()) {
213		QWidget::keyPressEvent(event);
214		return;
215	}
216	if (event->key() == Qt::Key_Tab) {
217		m_controller->setTurbo(true, false);
218	}
219	GBAKey key = m_inputController.mapKeyboard(event->key());
220	if (key == GBA_KEY_NONE) {
221		QWidget::keyPressEvent(event);
222		return;
223	}
224	m_controller->keyPressed(key);
225	event->accept();
226}
227
228void Window::keyReleaseEvent(QKeyEvent* event) {
229	if (event->isAutoRepeat()) {
230		QWidget::keyReleaseEvent(event);
231		return;
232	}
233	if (event->key() == Qt::Key_Tab) {
234		m_controller->setTurbo(false, false);
235	}
236	GBAKey key = m_inputController.mapKeyboard(event->key());
237	if (key == GBA_KEY_NONE) {
238		QWidget::keyPressEvent(event);
239		return;
240	}
241	m_controller->keyReleased(key);
242	event->accept();
243}
244
245void Window::resizeEvent(QResizeEvent*) {
246	redoLogo();
247	m_config->setOption("height", m_screenWidget->height());
248	m_config->setOption("width", m_screenWidget->width());
249}
250
251void Window::closeEvent(QCloseEvent* event) {
252	emit shutdown();
253	QMainWindow::closeEvent(event);
254}
255
256void Window::toggleFullScreen() {
257	if (isFullScreen()) {
258		showNormal();
259		menuBar()->show();
260	} else {
261		showFullScreen();
262#ifndef Q_OS_MAC
263		if (!m_controller->isPaused()) {
264			menuBar()->hide();
265		}
266#endif
267	}
268}
269
270void Window::gameStarted(GBAThread* context) {
271	emit startDrawing(m_controller->drawContext(), context);
272	foreach (QAction* action, m_gameActions) {
273		action->setDisabled(false);
274	}
275	char title[13] = { '\0' };
276	GBAGetGameTitle(context->gba, title);
277	setWindowTitle(tr(PROJECT_NAME " - %1").arg(title));
278	attachWidget(m_display);
279	m_screenWidget->setScaledContents(true);
280}
281
282void Window::gameStopped() {
283	foreach (QAction* action, m_gameActions) {
284		action->setDisabled(true);
285	}
286	setWindowTitle(tr(PROJECT_NAME));
287	detachWidget(m_display);
288	m_screenWidget->setScaledContents(false);
289	redoLogo();
290}
291
292void Window::redoLogo() {
293	if (m_controller->isLoaded()) {
294		return;
295	}
296	QPixmap logo(m_logo.scaled(m_screenWidget->size() * m_screenWidget->devicePixelRatio(), Qt::KeepAspectRatio, Qt::SmoothTransformation));
297	logo.setDevicePixelRatio(m_screenWidget->devicePixelRatio());
298	m_screenWidget->setPixmap(logo);
299}
300
301void Window::openStateWindow(LoadSave ls) {
302	if (m_stateWindow) {
303		return;
304	}
305	bool wasPaused = m_controller->isPaused();
306	m_stateWindow = new LoadSaveState(m_controller);
307	connect(this, SIGNAL(shutdown()), m_stateWindow, SLOT(close()));
308	connect(m_controller, SIGNAL(gameStopped(GBAThread*)), m_stateWindow, SLOT(close()));
309	connect(m_stateWindow, &LoadSaveState::closed, [this]() {
310		m_screenWidget->layout()->removeWidget(m_stateWindow);
311		m_stateWindow = nullptr;
312		setFocus();
313	});
314	if (!wasPaused) {
315		m_controller->setPaused(true);
316		connect(m_stateWindow, &LoadSaveState::closed, [this]() { m_controller->setPaused(false); });
317	}
318	m_stateWindow->setAttribute(Qt::WA_DeleteOnClose);
319	m_stateWindow->setMode(ls);
320	attachWidget(m_stateWindow);
321}
322
323void Window::setupMenu(QMenuBar* menubar) {
324	menubar->clear();
325	QMenu* fileMenu = menubar->addMenu(tr("&File"));
326	addAction(fileMenu->addAction(tr("Load &ROM..."), this, SLOT(selectROM()), QKeySequence::Open));
327	fileMenu->addAction(tr("Load &BIOS..."), this, SLOT(selectBIOS()));
328	fileMenu->addAction(tr("Load &patch..."), this, SLOT(selectPatch()));
329
330	fileMenu->addSeparator();
331
332	QAction* loadState = new QAction(tr("&Load state"), fileMenu);
333	loadState->setShortcut(tr("F10"));
334	connect(loadState, &QAction::triggered, [this]() { this->openStateWindow(LoadSave::LOAD); });
335	m_gameActions.append(loadState);
336	addAction(loadState);
337	fileMenu->addAction(loadState);
338
339	QAction* saveState = new QAction(tr("&Save state"), fileMenu);
340	saveState->setShortcut(tr("Shift+F10"));
341	connect(saveState, &QAction::triggered, [this]() { this->openStateWindow(LoadSave::SAVE); });
342	m_gameActions.append(saveState);
343	addAction(saveState);
344	fileMenu->addAction(saveState);
345
346	QMenu* quickLoadMenu = fileMenu->addMenu(tr("Quick load"));
347	QMenu* quickSaveMenu = fileMenu->addMenu(tr("Quick save"));
348	int i;
349	for (i = 1; i < 10; ++i) {
350		QAction* quickLoad = new QAction(tr("State &%1").arg(i), quickLoadMenu);
351		quickLoad->setShortcut(tr("F%1").arg(i));
352		connect(quickLoad, &QAction::triggered, [this, i]() { m_controller->loadState(i); });
353		m_gameActions.append(quickLoad);
354		addAction(quickLoad);
355		quickLoadMenu->addAction(quickLoad);
356
357		QAction* quickSave = new QAction(tr("State &%1").arg(i), quickSaveMenu);
358		quickSave->setShortcut(tr("Shift+F%1").arg(i));
359		connect(quickSave, &QAction::triggered, [this, i]() { m_controller->saveState(i); });
360		m_gameActions.append(quickSave);
361		addAction(quickSave);
362		quickSaveMenu->addAction(quickSave);
363	}
364
365#ifndef Q_OS_MAC
366	fileMenu->addSeparator();
367	fileMenu->addAction(tr("E&xit"), this, SLOT(close()), QKeySequence::Quit);
368#endif
369
370	QMenu* emulationMenu = menubar->addMenu(tr("&Emulation"));
371	QAction* reset = new QAction(tr("&Reset"), emulationMenu);
372	reset->setShortcut(tr("Ctrl+R"));
373	connect(reset, SIGNAL(triggered()), m_controller, SLOT(reset()));
374	m_gameActions.append(reset);
375	addAction(reset);
376	emulationMenu->addAction(reset);
377
378	QAction* shutdown = new QAction(tr("Sh&utdown"), emulationMenu);
379	connect(shutdown, SIGNAL(triggered()), m_controller, SLOT(closeGame()));
380	m_gameActions.append(shutdown);
381	emulationMenu->addAction(shutdown);
382	emulationMenu->addSeparator();
383
384	QAction* pause = new QAction(tr("&Pause"), emulationMenu);
385	pause->setChecked(false);
386	pause->setCheckable(true);
387	pause->setShortcut(tr("Ctrl+P"));
388	connect(pause, SIGNAL(triggered(bool)), m_controller, SLOT(setPaused(bool)));
389	connect(m_controller, &GameController::gamePaused, [this, pause]() {
390		pause->setChecked(true);
391
392		QImage currentImage(reinterpret_cast<const uchar*>(m_controller->drawContext()), VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS, 1024, QImage::Format_RGB32);
393		QPixmap pixmap;
394		pixmap.convertFromImage(currentImage.rgbSwapped());
395		m_screenWidget->setPixmap(pixmap);
396	});
397	connect(m_controller, &GameController::gameUnpaused, [pause]() { pause->setChecked(false); });
398	m_gameActions.append(pause);
399	addAction(pause);
400	emulationMenu->addAction(pause);
401
402	QAction* frameAdvance = new QAction(tr("&Next frame"), emulationMenu);
403	frameAdvance->setShortcut(tr("Ctrl+N"));
404	connect(frameAdvance, SIGNAL(triggered()), m_controller, SLOT(frameAdvance()));
405	m_gameActions.append(frameAdvance);
406	addAction(frameAdvance);
407	emulationMenu->addAction(frameAdvance);
408
409	emulationMenu->addSeparator();
410
411	QAction* turbo = new QAction(tr("T&urbo"), emulationMenu);
412	turbo->setCheckable(true);
413	turbo->setChecked(false);
414	turbo->setShortcut(tr("Shift+Tab"));
415	connect(turbo, SIGNAL(triggered(bool)), m_controller, SLOT(setTurbo(bool)));
416	addAction(turbo);
417	emulationMenu->addAction(turbo);
418
419	ConfigOption* videoSync = m_config->addOption("videoSync");
420	videoSync->addBoolean(tr("Sync to &video"), emulationMenu);
421	videoSync->connect([this](const QVariant& value) { m_controller->setVideoSync(value.toBool()); });
422	m_config->updateOption("videoSync");
423
424	ConfigOption* audioSync = m_config->addOption("audioSync");
425	audioSync->addBoolean(tr("Sync to &audio"), emulationMenu);
426	audioSync->connect([this](const QVariant& value) { m_controller->setAudioSync(value.toBool()); });
427	m_config->updateOption("audioSync");
428
429	emulationMenu->addSeparator();
430	QAction* keymap = new QAction(tr("Remap keyboard..."), emulationMenu);
431	connect(keymap, SIGNAL(triggered()), this, SLOT(openKeymapWindow()));
432	emulationMenu->addAction(keymap);
433
434	QMenu* avMenu = menubar->addMenu(tr("Audio/&Video"));
435	QMenu* frameMenu = avMenu->addMenu(tr("Frame size"));
436	QAction* setSize = new QAction(tr("1x"), avMenu);
437	connect(setSize, &QAction::triggered, [this]() {
438		showNormal();
439		resize(VIDEO_HORIZONTAL_PIXELS, VIDEO_VERTICAL_PIXELS);
440	});
441	frameMenu->addAction(setSize);
442	setSize = new QAction(tr("2x"), avMenu);
443	connect(setSize, &QAction::triggered, [this]() {
444		showNormal();
445		resize(VIDEO_HORIZONTAL_PIXELS * 2, VIDEO_VERTICAL_PIXELS * 2);
446	});
447	frameMenu->addAction(setSize);
448	setSize = new QAction(tr("3x"), avMenu);
449	connect(setSize, &QAction::triggered, [this]() {
450		showNormal();
451		resize(VIDEO_HORIZONTAL_PIXELS * 3, VIDEO_VERTICAL_PIXELS * 3);
452	});
453	frameMenu->addAction(setSize);
454	setSize = new QAction(tr("4x"), avMenu);
455	connect(setSize, &QAction::triggered, [this]() {
456		showNormal();
457		resize(VIDEO_HORIZONTAL_PIXELS * 4, VIDEO_VERTICAL_PIXELS * 4);
458	});
459	frameMenu->addAction(setSize);
460	addAction(frameMenu->addAction(tr("Fullscreen"), this, SLOT(toggleFullScreen()), QKeySequence("Ctrl+F")));
461
462	QMenu* skipMenu = avMenu->addMenu(tr("Frame&skip"));
463	ConfigOption* skip = m_config->addOption("frameskip");
464	skip->connect([this](const QVariant& value) { m_controller->setFrameskip(value.toInt()); });
465	for (int i = 0; i <= 10; ++i) {
466		skip->addValue(QString::number(i), i, skipMenu);
467	}
468	m_config->updateOption("frameskip");
469
470	avMenu->addSeparator();
471
472	QMenu* buffersMenu = avMenu->addMenu(tr("Buffer &size"));
473	ConfigOption* buffers = m_config->addOption("audioBuffers");
474	buffers->connect([this](const QVariant& value) { emit audioBufferSamplesChanged(value.toInt()); });
475	buffers->addValue(tr("512"), 512, buffersMenu);
476	buffers->addValue(tr("768"), 768, buffersMenu);
477	buffers->addValue(tr("1024"), 1024, buffersMenu);
478	buffers->addValue(tr("2048"), 2048, buffersMenu);
479	buffers->addValue(tr("4096"), 4096, buffersMenu);
480	m_config->updateOption("audioBuffers");
481
482	avMenu->addSeparator();
483
484	QMenu* target = avMenu->addMenu("FPS target");
485	ConfigOption* fpsTargetOption = m_config->addOption("fpsTarget");
486	fpsTargetOption->connect([this](const QVariant& value) { emit fpsTargetChanged(value.toInt()); });
487	fpsTargetOption->addValue(tr("15"), 15, target);
488	fpsTargetOption->addValue(tr("30"), 30, target);
489	fpsTargetOption->addValue(tr("45"), 45, target);
490	fpsTargetOption->addValue(tr("60"), 60, target);
491	fpsTargetOption->addValue(tr("90"), 90, target);
492	fpsTargetOption->addValue(tr("120"), 120, target);
493	fpsTargetOption->addValue(tr("240"), 240, target);
494	m_config->updateOption("fpsTarget");
495
496#if defined(USE_PNG) || defined(USE_FFMPEG) || defined(USE_MAGICK)
497	avMenu->addSeparator();
498#endif
499
500#ifdef USE_PNG
501	QAction* screenshot = new QAction(tr("Take &screenshot"), avMenu);
502	screenshot->setShortcut(tr("F12"));
503	connect(screenshot, SIGNAL(triggered()), m_display, SLOT(screenshot()));
504	m_gameActions.append(screenshot);
505	addAction(screenshot);
506	avMenu->addAction(screenshot);
507#endif
508
509#ifdef USE_FFMPEG
510	QAction* recordOutput = new QAction(tr("Record output..."), avMenu);
511	recordOutput->setShortcut(tr("F11"));
512	connect(recordOutput, SIGNAL(triggered()), this, SLOT(openVideoWindow()));
513	addAction(recordOutput);
514	avMenu->addAction(recordOutput);
515#endif
516
517#ifdef USE_MAGICK
518	QAction* recordGIF = new QAction(tr("Record GIF..."), avMenu);
519	recordGIF->setShortcut(tr("Shift+F11"));
520	connect(recordGIF, SIGNAL(triggered()), this, SLOT(openGIFWindow()));
521	addAction(recordGIF);
522	avMenu->addAction(recordGIF);
523#endif
524
525	QMenu* debuggingMenu = menubar->addMenu(tr("&Debugging"));
526	QAction* viewLogs = new QAction(tr("View &logs..."), debuggingMenu);
527	connect(viewLogs, SIGNAL(triggered()), m_logView, SLOT(show()));
528	debuggingMenu->addAction(viewLogs);
529#ifdef USE_GDB_STUB
530	QAction* gdbWindow = new QAction(tr("Start &GDB server..."), debuggingMenu);
531	connect(gdbWindow, SIGNAL(triggered()), this, SLOT(gdbOpen()));
532	debuggingMenu->addAction(gdbWindow);
533#endif
534
535	foreach (QAction* action, m_gameActions) {
536		action->setDisabled(true);
537	}
538}
539
540void Window::attachWidget(QWidget* widget) {
541	m_screenWidget->layout()->addWidget(widget);
542	static_cast<QStackedLayout*>(m_screenWidget->layout())->setCurrentWidget(widget);
543}
544
545void Window::detachWidget(QWidget* widget) {
546	m_screenWidget->layout()->removeWidget(widget);
547}
548
549WindowBackground::WindowBackground(QWidget* parent)
550	: QLabel(parent)
551{
552	setLayout(new QStackedLayout());
553	layout()->setContentsMargins(0, 0, 0, 0);
554	setAlignment(Qt::AlignCenter);
555	QPalette p = palette();
556	p.setColor(backgroundRole(), Qt::black);
557	setPalette(p);
558	setAutoFillBackground(true);
559}
560
561void WindowBackground::setSizeHint(const QSize& hint) {
562	m_sizeHint = hint;
563}
564
565QSize WindowBackground::sizeHint() const {
566	return m_sizeHint;
567}