C++ BButton::SetEnabled方法代码示例

void
HWindow::_InitGUI()
{
	fEventList = new HEventList();
	fEventList->SetType(BMediaFiles::B_SOUNDS);
	fEventList->SetSelectionMode(B_SINGLE_SELECTION_LIST);

	BMenu* menu = new BMenu("file");
	menu->SetRadioMode(true);
	menu->SetLabelFromMarked(true);
	menu->AddSeparatorItem();
	menu->AddItem(new BMenuItem(B_TRANSLATE("<none>"),
		new BMessage(M_NONE_MESSAGE)));
	menu->AddItem(new BMenuItem(B_TRANSLATE("Other" B_UTF8_ELLIPSIS),
		new BMessage(M_OTHER_MESSAGE)));

	BString label(B_TRANSLATE("Sound file:"));
	BMenuField* menuField = new BMenuField("filemenu", label, menu);
	menuField->SetDivider(menuField->StringWidth(label) + 10);

	BSize buttonsSize(be_plain_font->Size() * 2.5, be_plain_font->Size() * 2.5);

	BButton* stopbutton = new BButton("stop", "\xE2\x96\xA0",
		new BMessage(M_STOP_MESSAGE));
	stopbutton->SetEnabled(false);
	stopbutton->SetExplicitSize(buttonsSize);

	// We need at least one view to trigger B_PULSE_NEEDED events which we will
	// intercept in DispatchMessage to trigger the buttons enabling or disabling.
	stopbutton->SetFlags(stopbutton->Flags() | B_PULSE_NEEDED);

	BButton* playbutton = new BButton("play", "\xE2\x96\xB6",
		new BMessage(M_PLAY_MESSAGE));
	playbutton->SetEnabled(false);
	playbutton->SetExplicitSize(buttonsSize);

	BLayoutBuilder::Group<>(this, B_VERTICAL)
		.SetInsets(B_USE_WINDOW_SPACING)
		.Add(fEventList)
		.AddGroup(B_HORIZONTAL)
			.Add(menuField)
			.AddGroup(B_HORIZONTAL, 0)
				.Add(playbutton)
				.Add(stopbutton)
			.End()
		.End();

	// setup file menu
	_SetupMenuField();
	BMenuItem* noneItem = menu->FindItem(B_TRANSLATE("<none>"));
	if (noneItem != NULL)
		noneItem->SetMarked(true);

	_UpdateZoomLimits();
}

void _OwqList::SelectionChanged()
{
	inherited::SelectionChanged();
	BRow*	selection = CurrentSelection();
	if( selection ) {
		if( mChange ) mChange->SetEnabled( true );
		if( mRemove ) mRemove->SetEnabled( true );
	} else {
		if( mChange ) mChange->SetEnabled( false );
		if( mRemove ) mRemove->SetEnabled( false );
	}
}

void CPrefsDialog::UpdateFields()
{
	if (fNewOrCur->IndexOf(fNewOrCur->FindMarked()) == 1)
		GrabDocFont();
	else
		GrabNewFont();
	
	BButton *b;
	b = (BButton *)FindView("ok");
	b->SetEnabled(true);
	b = (BButton *)FindView("cancel");
	b->SetEnabled(true);
} /* CPrefsDialog::UpdateFields */

bool CPrefsDialog::CancelClicked()
{
	char s[256];
	
	ResetFontSheet();
	
	SetOn("autorecalc", fAutoRecalc);
	SetOn("displayzero", fDisplayZero);
	
	s[1] = 0;
	s[0] = gDecimalPoint;
	SetText("decsep", s);
	s[0] = gThousandSeparator;
	SetText("thoussep", s);
	s[0] = gListSeparator;
	SetText("listsep", s);
	s[0] = gTimeSeparator;
	SetText("timesep", s);
	s[0] = gDateSeparator;
	SetText("datesep", s);
	fDMY->FindItem(gPrefs->GetPrefString("date order"))->SetMarked(true);
	SetOn("24 hours", g24Hours);
	SetOn("excel", gPrefs->GetPrefInt("Excel keys", 0));
	SetOn("grayselect", gPrefs->GetPrefInt("Select Gray", 0));
	SetOn(gPrefs->GetPrefInt("start with new", 1) ? "donew" : "doopen", B_CONTROL_ON);
	SetOn("formula starts with equal", gPrefs->GetPrefInt("formula starts with equal", 0));
	SetOn("dark gridlines", gPrefs->GetPrefInt("dark gridlines"));
	
	SetText("c_symbol", gPrefs->GetPrefString("c_symbol", "$"));
	SetOn(gPrefs->GetPrefInt("c_before", 1) ? "c_before" : "c_after", B_CONTROL_ON);
	SetOn("c_neg_par", gPrefs->GetPrefInt("c_neg_par", 1) ? B_CONTROL_ON : B_CONTROL_OFF);
	sprintf(s, "%d", gPrefs->GetPrefInt("c_digits"));
	SetText("c_digits", s);

	if (fPageSetup) FREE(fPageSetup);
	fPageSetup = (char *)Hex2Bin(gPrefs->GetPrefString("default page setup", ""), fPageSetupSize);
	
	SetOn("prgrid", fPrGrid);
	SetOn("prhead", fPrBorders);
	SetOn("dispgrid", fShGrid);
	SetOn("disphead", fShBorders);
	
	BButton *b;
	b = (BButton *)FindView("ok");
	b->SetEnabled(false);
	b = (BButton *)FindView("cancel");
	b->SetEnabled(false);
	
	return false;
} /* CPrefsDialog::CancelClicked */

// Buttons are enabled or not depending on the selection in the list
// so each time you click in the list, this method is called to update the buttons
void NetListView::SelectionChanged(void)
{
	int32 index = CurrentSelection();

	BView *parent = Parent();
	
	if (index >= 0) {
		
		// There are 2 lists that are instances of this class, so we have to see in which list you are clicking
		if (strcmp(parent->Name(),"Interfaces_Scroller") == 0) {												  
			
			BButton *settings = dynamic_cast <BButton *> ((parent->Parent())->FindView("Settings"));
			BButton *clear 	  = dynamic_cast <BButton *> ((parent->Parent())->FindView("Clear"));
			
			settings->SetEnabled(true);
			clear->SetEnabled(true);
		}
		else if (strcmp(parent->Name(),"Configurations_Scroller") == 0) {
			
			BButton *restore = dynamic_cast <BButton *> ((parent->Parent())->FindView("Restore"));
			BButton *remove	 = dynamic_cast <BButton *> ((parent->Parent())->FindView("Delete"));
			
			restore ->SetEnabled(true);
			remove  ->SetEnabled(true);
		}
	}
	else {
		
		// There are 2 lists that are instances of this class, so we have to see in which list you are clicking
		if (strcmp(parent->Name(),"Interfaces_Scroller") == 0) {												  
		
			BButton *settings=dynamic_cast <BButton *> ((parent->Parent())->FindView("Settings"));
			BButton *clear=dynamic_cast <BButton *> ((parent->Parent())->FindView("Clear"));
			
			settings->SetEnabled(false);
			clear->SetEnabled(false);
		}
		else if (strcmp(parent->Name(),"Configurations_Scroller") == 0) {
		
			BButton *restore=dynamic_cast <BButton *> ((parent->Parent())->FindView("Restore"));
			BButton *remove=dynamic_cast <BButton *> ((parent->Parent())->FindView("Delete"));
			
			restore->SetEnabled(false);
			remove->SetEnabled(false);
		}
	}			
				
}

void
FadeView::UpdateStatus()
{
	Window()->DisableUpdates();

	bool enabled = fEnableCheckBox->Value() == B_CONTROL_ON;
	fPasswordCheckBox->SetEnabled(enabled);
	fTurnOffCheckBox->SetEnabled(enabled && fTurnOffScreenFlags != 0);
	fRunSlider->SetEnabled(enabled);
	fTurnOffSlider->SetEnabled(enabled && fTurnOffCheckBox->Value());
	fPasswordSlider->SetEnabled(enabled && fPasswordCheckBox->Value());
	fPasswordButton->SetEnabled(enabled && fPasswordCheckBox->Value());

	Window()->EnableUpdates();

	// Update the saved preferences
	fSettings.SetWindowFrame(Frame());
	fSettings.SetTimeFlags((enabled ? ENABLE_SAVER : 0)
		| (fTurnOffCheckBox->Value() ? fTurnOffScreenFlags : 0));
	fSettings.SetBlankTime(fRunSlider->Time());
	bigtime_t offTime = fTurnOffSlider->Time() - fSettings.BlankTime();
	fSettings.SetOffTime(offTime);
	fSettings.SetSuspendTime(offTime);
	fSettings.SetStandByTime(offTime);
	fSettings.SetBlankCorner(fFadeNow->Corner());
	fSettings.SetNeverBlankCorner(fFadeNever->Corner());
	fSettings.SetLockEnable(fPasswordCheckBox->Value());
	fSettings.SetPasswordTime(fPasswordSlider->Time());

	// TODO - Tell the password window to update its stuff
}

MainView::MainView( BRect frame ) : BView (frame, "mainView", B_FOLLOW_ALL_SIDES, B_WILL_DRAW) {

	SetViewColor(216, 216, 216);

	// nutzbare Größe
	frame.OffsetTo( 0.0, 0.0 );
	frame.InsetBy( 5.0, 5.0 );
	
	// Erstellen der beiden inneren Frames
	TopView* topView = new TopView( BRect( frame.left, frame.top, frame.right, frame.bottom - 72.0 - be_plain_font->Size() - be_bold_font->Size() ) );
	AddChild( topView );

	BottomView* bottomView = new BottomView( BRect( frame.left, frame.bottom - 67.0 - be_plain_font->Size() - be_bold_font->Size(), frame.right, frame.bottom - 43.0 ) );
	AddChild( bottomView );

	// StatusBar
	BStatusBar*	statusBar	= new BStatusBar( BRect(frame.left + 5.0, frame.bottom - be_plain_font->Size() - 23.0, frame.left + 400.0, frame.bottom), "statusBar", STATUS_STATUS, NULL);
	statusBar->SetText(STATUS_SELECT_FILES);
	statusBar->SetResizingMode(B_FOLLOW_BOTTOM);
	rgb_color color = { 70, 100, 180, 255};
	statusBar->SetBarColor(color);
	statusBar->SetBarHeight(14.0);
	AddChild(statusBar);
	
	// Do it! - Button
	BButton* DoItButton = new BButton( BRect ( frame.right - be_plain_font->StringWidth(STR_DO_IT) - 25.0, frame.bottom - 30.0, frame.right - 5.0 , frame.bottom - 5.0 ), "DoIt", STR_DO_IT, new BMessage(MSG_DO_IT), B_FOLLOW_RIGHT | B_FOLLOW_BOTTOM );
	DoItButton->SetEnabled(false);
	AddChild(DoItButton);
};

void
HWindow::_Pulse()
{
	BButton* stop = dynamic_cast<BButton*>(FindView("stop"));

	if (stop == NULL)
		return;

	if (fPlayer != NULL) {
		if (fPlayer->IsPlaying())
			stop->SetEnabled(true);
		else
			stop->SetEnabled(false);
	} else
		stop->SetEnabled(false);
}

TView::TView(BRect frame, const char *name, uint32 resizingMode, uint32 flags)
		: BView(frame, name, resizingMode, flags)
{
	BFont font;

	BButton *btn = new BButton(BRect(10, 10, 150, 50), NULL, "Hello World", new BMessage(BTN_HELLO_WORLD_EN_MSG));
	btn->ForceFontAliasing(true);
	if (font.SetFamilyAndStyle("SimSun", "Regular") == B_OK) btn->SetFont(&font, B_FONT_FAMILY_AND_STYLE);
	btn->SetFontSize(20);
	AddChild(btn);

	btn = new BButton(BRect(10, 100, 50, 120), NULL, "Ciao Mondo", new BMessage(BTN_HELLO_WORLD_IT_MSG));
	btn->ForceFontAliasing(true);
	if (font.SetFamilyAndStyle("SimHei", "Regular") == B_OK) {
		btn->SetFont(&font, B_FONT_FAMILY_AND_STYLE);
		btn->SetFontSize(24);
	}
	AddChild(btn);
	btn->ResizeToPreferred();

	btn = new BButton(BRect(10, 150, 40, 180), NULL, "Disabled", new BMessage(BTN_NOT_ENABLED_MSG));
	btn->SetEnabled(false);
	AddChild(btn);
	btn->ResizeToPreferred();
}

// Stuff we can only do when the main view is attached to a window
void
OutputFormatView::AttachedToWindow()
{
	// Get the window and lock it
	the_window = Window();
	the_window->Lock();

	// Set some size limits on the window
	the_window->SetSizeLimits(
		200.0,
		32767.0,
		Bounds().Height() - scroll_view->Bounds().Height() + 50.0,
		32767.0);
	// Set the target for messages sent to this view
	list_view->SetTarget(this);
	the_button->SetTarget(this);

	// Make the list view the keyboard focus
	list_view->MakeFocus();

	// Select the first item in the list,
	// and make its config view show up
	if (list_view->CountItems() > 0)
		list_view->Select(0);
	else
		the_button->SetEnabled(false);

	// Unlock the window
	the_window->Unlock();

	// Call the base class
	BView::AttachedToWindow();
}

void
HWindow::Pulse()
{
	HEventRow* row = (HEventRow*)fEventList->CurrentSelection();
	BMenuField* menufield = dynamic_cast<BMenuField*>(FindView("filemenu"));
	BButton* button = dynamic_cast<BButton*>(FindView("play"));
	BButton* stop = dynamic_cast<BButton*>(FindView("stop"));

	if (menufield == NULL || button == NULL || stop == NULL)
		return;

	if (row != NULL) {
		menufield->SetEnabled(true);

		const char* path = row->Path();
		if (path != NULL && strcmp(path, ""))
			button->SetEnabled(true);
		else
			button->SetEnabled(false);
	} else {
		menufield->SetEnabled(false);
		button->SetEnabled(false);
	}

	if (fPlayer != NULL) {
		if (fPlayer->IsPlaying())
			stop->SetEnabled(true);
		else
			stop->SetEnabled(false);
	} else
		stop->SetEnabled(false);
}

void
ProgressWindow::MessageReceived(BMessage* message)
{
	switch (message->what) {
		case B_UPDATE_STATUS_BAR:
			char count[100];
			snprintf(count, sizeof(count), "%" B_PRId32,
				(int32)fStatusBar->CurrentValue() + 1);

			fStatusBar->Update(1, NULL, count);
			break;

		case B_CANCEL:
			fAbortButton->SetEnabled(false);
			if (fQuitListener != NULL)
				*fQuitListener = true;
			break;

		default:
			BWindow::MessageReceived(message);
			break;
	}
}

void
HWindow::InitGUI()
{
	fEventList = new HEventList();
	fEventList->SetType(BMediaFiles::B_SOUNDS);
	fEventList->SetSelectionMode(B_SINGLE_SELECTION_LIST);

	BGroupView* view = new BGroupView();
	BBox* box = new BBox("", B_WILL_DRAW | B_FRAME_EVENTS
		| B_NAVIGABLE_JUMP | B_PULSE_NEEDED);

	BMenu* menu = new BMenu("file");
	menu->SetRadioMode(true);
	menu->SetLabelFromMarked(true);
	menu->AddSeparatorItem();
	menu->AddItem(new BMenuItem(B_TRANSLATE("<none>"),
		new BMessage(M_NONE_MESSAGE)));
	menu->AddItem(new BMenuItem(B_TRANSLATE("Other" B_UTF8_ELLIPSIS),
		new BMessage(M_OTHER_MESSAGE)));

	BString label(B_TRANSLATE("Sound file:"));
	BMenuField* menuField = new BMenuField("filemenu", label, menu);
	menuField->SetDivider(menuField->StringWidth(label) + 10);

	BButton* stopbutton = new BButton("stop", B_TRANSLATE("Stop"),
		new BMessage(M_STOP_MESSAGE));
	stopbutton->SetEnabled(false);

	BButton* playbutton = new BButton("play", B_TRANSLATE("Play"),
		new BMessage(M_PLAY_MESSAGE));
	playbutton->SetEnabled(false);

	const float kInset = be_control_look->DefaultItemSpacing();
	view->SetLayout(new BGroupLayout(B_HORIZONTAL));
	view->AddChild(BGroupLayoutBuilder(B_VERTICAL, kInset)
		.AddGroup(B_HORIZONTAL)
			.Add(menuField)
			.AddGlue()
		.End()
		.AddGroup(B_HORIZONTAL, kInset)
			.AddGlue()
			.Add(playbutton)
			.Add(stopbutton)
		.End()
		.SetInsets(kInset, kInset, kInset, kInset)
	);

	box->AddChild(view);

	SetLayout(new BGroupLayout(B_HORIZONTAL));
	AddChild(BGroupLayoutBuilder(B_VERTICAL)
		.AddGroup(B_VERTICAL, kInset)
			.Add(fEventList)
			.Add(box)
		.End()
		.SetInsets(kInset, kInset, kInset, kInset)
	);

	// setup file menu
	SetupMenuField();
	BMenuItem* noneItem = menu->FindItem(B_TRANSLATE("<none>"));
	if (noneItem != NULL)
		noneItem->SetMarked(true);
}

bool CPrefsDialog::OKClicked()
{
	font_family defFamily;
	font_style defStyle;

	be_plain_font->GetFamilyAndStyle(&defFamily, &defStyle);
	gPrefs->SetPrefString("defdoc font family", fNewFontFamily);
	gPrefs->SetPrefString("defdoc font style", defStyle);
	gPrefs->SetPrefDouble("defdoc font size", fNewFontSize);

	be_bold_font->GetFamilyAndStyle(&defFamily, &defStyle);
	gPrefs->SetPrefString("border font family", fNewBFontFamily);
	gPrefs->SetPrefString("border font style", defStyle);
	gPrefs->SetPrefDouble("border font size", fNewBFontSize);

	gPrefs->SetPrefInt("decimal point", *GetText("decsep"));
	gPrefs->SetPrefInt("thousands separator", *GetText("thoussep"));
	gPrefs->SetPrefInt("list separator", *GetText("listsep"));
	gPrefs->SetPrefInt("date separator", *GetText("datesep"));
	gPrefs->SetPrefInt("time separator", *GetText("timesep"));
	gPrefs->SetPrefString("date order", fDMY->FindMarked()->Label());	
	gPrefs->SetPrefInt("24 hours", IsOn("24 hours"));
	gPrefs->SetPrefInt("Excel keys", IsOn("excel"));
	gPrefs->SetPrefInt("Select Gray", IsOn("grayselect"));
	gPrefs->SetPrefInt("start with new", IsOn("donew"));
	gWithEqualSign = IsOn("formula starts with equal");
	gPrefs->SetPrefInt("formula starts with equal", gWithEqualSign);
	gPrefs->SetPrefInt("dark gridlines", 	IsOn("dark gridlines"));
	if (gPrefs->GetPrefInt("dark gridlines", 0))
		gGridColor = 10;
	else
		gGridColor = 6;

	gPrefs->SetPrefString("c_symbol", GetText("c_symbol"));
	gPrefs->SetPrefInt("c_before", IsOn("c_before"));
	gPrefs->SetPrefInt("c_neg_par", IsOn("c_neg_par"));
	gPrefs->SetPrefInt("c_digits", atoi(GetText("c_digits")));

	if (fPageSetup)
	{
		char *ps = Bin2Hex(fPageSetup, fPageSetupSize);
		gPrefs->SetPrefString("default page setup", ps);
		FREE(ps);
	}

	BMessage msg(msg_WindowOptions);

	msg.AddString("docfamily", fDocFontFamily);
	msg.AddString("docstyle", "Roman");
	msg.AddFloat("docsize", fDocFontSize);
	msg.AddString("borderfamily", fDocBFontFamily);
	msg.AddString("borderstyle", "Bold");
	msg.AddFloat("bordersize", fDocBFontSize);
	msg.AddBool("autorecalc", IsOn("autorecalc"));
	msg.AddBool("displayzero", IsOn("displayzero"));
	msg.AddBool("dispgrid", IsOn("dispgrid"));
	msg.AddBool("disphead", IsOn("disphead"));
	msg.AddBool("prgrid", IsOn("prgrid"));
	msg.AddBool("prhead", IsOn("prhead"));
	
	fOwner->PostMessage(&msg, fOwner->GetCellView());

	BButton *b;
	b = (BButton *)FindView("ok");
	b->SetEnabled(false);
	b = (BButton *)FindView("cancel");
	b->SetEnabled(false);

	InitFormatter();

	return false;
} /* CPrefsDialog::OKClicked */

	void SetControlEnable(bool enable)
	{
		if( mNameCtrl ) mNameCtrl->SetEnabled( enable );
		if( mFileButton ) mFileButton->SetEnabled( enable );
		if( mSkipBox ) mSkipBox->SetEnabled( enable );
	}