C++ Prefs函数代码示例

void ArpIntControl::DrawOn(BRect updateRect, BView* view)
{
	BRect		cb = ControlBounds();
	float		textY = cb.top + Prefs().GetInt32(ARP_FULLFONT_Y);
	if (mDivider > 0) {
		view->SetHighColor(mViewColor);
		view->FillRect( BRect(0, cb.top, cb.left, cb.bottom) );
		if (mLabel.Length() > 0) {
			if ( IsFocus() ) view->SetHighColor( Prefs().GetColor(ARP_INT_FGF_C));
			else if ( !IsEnabled() ) view->SetHighColor( tint_color(Prefs().GetColor(ARP_INT_FG_C), B_LIGHTEN_1_TINT) );
			else view->SetHighColor( Prefs().GetColor(ARP_INT_FG_C) );
			view->SetLowColor(mViewColor);
			view->DrawString( mLabel.String(), BPoint(0, textY) );
		}
	}
	DrawControlBackgroundOn(cb, view);

	BPoint			drawPt(cb.left + 3, textY);
	if (IsEnabled() == false) {
		drawPt.x++;
		drawPt.y++;
	}
	BString16		str;
	GetValueLabel(Value(), str);
	SetValueColor(view);
	view->DrawString( str.String(), drawPt );
}

void ArpIntControl::StartEdit()
{
	// If I've lost the active state while waiting, don't start editing.
	if ( !Window() || !Window()->IsActive() ) return;
	
	StopEdit(false);
	StopTimer();
	
	BRect		b = ControlBounds();
	float		borderL = b.left;
	float		bottomIndent = 0;
	float		stringIndent = 3;
	BPoint		origin( borderL + 3, b.bottom - bottomIndent - stringIndent );
	
	if (!mTextCtrl) {
		BFont font;
		GetFont(&font);
		mTextCtrl = new ArpInlineTextView(BMessenger(this),
										  "text:edit", &font,
										  origin.x, b.right-2, origin.y);
	}
	if (!mTextCtrl) return;
	
	SetEventMask(B_POINTER_EVENTS, B_NO_POINTER_HISTORY);
	
	mTextCtrl->MoveOver(origin.x, b.right-2, origin.y);
	mTextCtrl->SetViewColor( Prefs().GetColor(ARP_INT_BGF_C));
	mTextCtrl->SetHighColor( Prefs().GetColor(ARP_INT_FGF_C));
	BString16		str;
	GetValueLabel(Value(), str);
	mTextCtrl->SetText( str.String() );
	AddChild(mTextCtrl);
}

void SeqSignatureMeasureControl::DrawCenterOn(BRect bounds, BView* view)
{
	view->SetHighColor( Prefs().Color(AM_MEASURE_FG_C) );
	view->SetLowColor( Prefs().Color(AM_MEASURE_BOTTOM_BG_C) );

	AmSignatureMeasureBackground		bg(mSignatures, mMtc);
	bg.SetScrollX(mScrollX);
	bg.SetLeftIndent(mLeftIndent);
	bg.SetFlag(bg.DRAW_SIGNATURES_FLAG, true);
	bg.SetFlag(bg.DRAW_MEASURE_FLAG, true);
	/* This looks like a hack I did for drawing the measure in
	 * the track window.  However, as of now, I have no plans to
	 * allow tracks to have their own signatures, so this is
	 * currently a waste of time.  Probably, if I do want to reinstate
	 * this, I should do it a better way, like another subclass.  This
	 * is just gross.
	 */
#if 0
	if (mTrackWinProps) {
		AmTrackRef				trackRef = mTrackWinProps->OrderedTrackAt(0);
		if (trackRef.IsValid() ) bg.SetTrackRef(trackRef);
	}
#endif
	bg.DrawAllOn(view, bounds);
}

void SeqMeasureControl::DrawCenterBgOn(BRect cBounds, BView* view, AmTime songEndTime)
{
	BPoint		left(cBounds.left, cBounds.top + 1);
	BPoint		right(cBounds.right, cBounds.top + 1);
	rgb_color	c = Prefs().Color( AM_MEASURE_TOP_BG_C );
	rgb_color	bc = Prefs().Color( AM_MEASURE_BOTTOM_BG_C );
	float		r_delta = 0, g_delta = 0, b_delta = 0;
	float		height = cBounds.bottom - left.y;
	if( c.red != bc.red )		r_delta = ((float)bc.red - (float)c.red) / height;
	if( c.green != bc.green )	g_delta = ((float)bc.green - (float)c.green) / height;
	if( c.blue != bc.blue )		b_delta = ((float)bc.blue - (float)c.blue) / height;

	float		i = 1;
	rgb_color	o = c;
	while (left.y < cBounds.bottom) {
		view->SetHighColor( c );
		view->StrokeLine( left, right );
		c.red = (uint8)(o.red + (i * r_delta));
		c.green = (uint8)(o.green + (i * g_delta));
		c.blue = (uint8)(o.blue + (i * b_delta));
		left.y++;
		right.y++;
		i++;
	}
}

BView* SeqPrefWin::NewEditView(BRect bounds, const BMessage& prefs)
{
	BView*		v = new BView(bounds, EDIT_STR, B_FOLLOW_ALL, 0);
	if (!v) return v;
	v->SetViewColor( Prefs().Color(AM_AUX_WINDOW_BG_C) );

	const char*	label = "Undo history:";
	float		top = INDENT;
	float		fh = view_font_height(v);
	float		ih = Prefs().Size(INT_CTRL_Y);
	float		max = (fh > ih) ? fh : ih;
	BRect		r(INDENT, top, INDENT + v->StringWidth(label), top + max);
	BStringView* sv = new BStringView(r, "undolevellabel", label);
	if (sv) v->AddChild(sv);
	r.left = r.right + LABEL_PAD;
	r.right = r.left + v->StringWidth("999") + 5;
	mUndoLevelCtrl = new ArpIntControl( r, UNDO_LEVEL_INT, NULL, new BMessage(CHANGE_UNDO_HISTORY_MSG) );
	if (mUndoLevelCtrl) {
		mUndoLevelCtrl->SetLimits(0, UNDO_HISTORY_MAX);
		int32		level;
		if (prefs.FindInt32(UNDO_HISTORY_PREF, &level) != B_OK) level = AM_DEFAULT_UNDO_HISTORY;
		if (level < 0 || level > UNDO_HISTORY_MAX) level = AM_DEFAULT_UNDO_HISTORY;
		mUndoLevelCtrl->SetValue(level);
		v->AddChild(mUndoLevelCtrl);
	}
	return v;
}

void TestPrefsDataReadOld( void )
{
    OldPreferences  oldPref;
    Int16           version;
    UInt16          prefSize;

    /* Add known old preference structure */
    MemSet( &oldPref, sizeof( OldPreferences ), 0 );
    oldPref.rotate          = true;
    oldPref.controlMode     = MODE2;
    oldPref.useDateTime     = true;
    PrefSetAppPreferences( (UInt32) ViewerAppID, (UInt16) ViewerOldPrefID,
        (Int16) ViewerVersion, &oldPref, sizeof( OldPreferences ), true );

    /* When the old preference structure is found it should be converted
       to the new format and then the old structure should be removed */
    ReadPrefs();
    ASSERT( Prefs()->rotate );
    ASSERT( Prefs()->controlMode == MODE2 );
    ASSERT( Prefs()->useDateTime );

    /* Check that the old preference structure is removed */
    prefSize    = 0;
    version     = PrefGetAppPreferences( (UInt32) ViewerAppID,
                    (UInt16) ViewerOldPrefID, NULL, &prefSize, true);

    ASSERT( version == noPreferenceFound );
}

/* Load the general section into memory */
static void LoadColorPrefs( void )
{
    CtlSetValue( GetObjectPtr( frmPrefsColorStrikethrough ),
        Prefs()->strikethrough );
    CtlSetValue( GetObjectPtr( frmPrefsColorForceDefaultColors ),
        Prefs()->forceDefaultColors );
}

/* Indicate that the next tap looks things up in the selected word */
static void ShowSelectWordTapIcon( void )
{
    FormType* mainForm;
    UInt16    prevCoordSys;

    if ( Prefs()->toolbar == TOOLBAR_NONE )
        return;

    mainForm = FrmGetFormPtr( GetMainFormId() );
    prevCoordSys = PalmSetCoordinateSystem( STANDARD );

    if ( Prefs()->toolbar == TOOLBAR_SILK ) {
        /* FIXME: figure this out */
    }
    else {
        FrmHideObject( mainForm, FrmGetObjectIndex( mainForm, bmpWait ) );

        if ( isSelectWordTapMode ) {
            FrmHideObject( mainForm, FrmGetObjectIndex( mainForm, bmpHome ) );
            FrmShowObject( mainForm, FrmGetObjectIndex( mainForm, bmpLookup ) );
        }
        else {
            FrmHideObject( mainForm, FrmGetObjectIndex( mainForm, bmpLookup ) );
            FrmShowObject( mainForm, FrmGetObjectIndex( mainForm, bmpHome ) );
        }
    }
    PalmSetCoordinateSystem( prevCoordSys );
}

/*************************************************************************
 * SEQ-STUDIO-WINDOW
 *************************************************************************/
SeqStudioWindow::SeqStudioWindow(	BRect frame,
									const BMessage* config = NULL) 
		: inherited(frame,
					"Studio",
					B_DOCUMENT_WINDOW_LOOK,
					B_NORMAL_WINDOW_FEEL,
					B_ASYNCHRONOUS_CONTROLS),
		  mBg(NULL), mPortMenu(NULL),
		  mLabelCtrl(NULL), mDeviceCtrl(NULL)
{
	BRect		b(Bounds() );
	BRect		r(b);
	r.bottom  = Prefs().Size(MAINMENU_Y);
	AddMainMenu(r);
	r.top = r.bottom + 1;
	/* This accounts for the document window tab.  That tab does
	 * not play nicely with a background that goes completely behind
	 * it -- it leaves trails -- so we have to chunk the background
	 * into two parts.
	 */
	r.bottom = b.bottom - B_H_SCROLL_BAR_HEIGHT;
	AddViews(r);
	r.top = r.bottom + 1;
	r.bottom = b.bottom;
	r.right = b.right - B_V_SCROLL_BAR_WIDTH;
	BView*		v = new BView(r, "filler", B_FOLLOW_LEFT_RIGHT | B_FOLLOW_BOTTOM, 0);
	if (v) {
		v->SetViewColor( Prefs().Color(AM_AUX_WINDOW_BG_C) );
		AddChild(v);
	}

	if (config) SetConfiguration(config);
}

/* Perform action for specified screen region */
static void DoScreenAction
    (
    RegionType region   /* screen region */
    )
{
    DoSelectTypeAction( Prefs()->select[ Prefs()->controlMode ][ region ] );
}

void SeqPrefWin::FactoryRowSelected()
{
	if (mFactoryInspector) {
		if (mFactoryInspector->RemoveSelf()) delete mFactoryInspector;
		mFactoryInspector = 0;
	}

	if (!mFactoryView) return;
	
	ArpVALIDATE(mFactoryList, return);
	float				sx = Prefs().Size(SPACE_X), sy = Prefs().Size(SPACE_Y);
	BPoint				at = BPoint(sx, mFactoryList->Frame().bottom + sy);

	BString				fac, key;
	if (mFactoryList->GetCurrentKeys(fac, key) != B_OK
			|| fac.Length() < 1 || key.Length() < 1)
		return;

	AmViewFactory*		factory = AmGlobals().FactoryNamed(fac);
	if (!factory) return;

	BRect				f(mFactoryView->Bounds());
	f.left = at.x;
	f.top = at.y;
	mFactoryInspector = factory->NewPrefView(f, &mPreferences, key);
	if (mFactoryInspector) mFactoryView->AddChild(mFactoryInspector);
}

GlImage* GlNode1dAddOn::NewImage() const
{
	int32				w = Prefs().GetInt32(GL_NODE_IMAGE_X),
						h = Prefs().GetInt32(GL_NODE_IMAGE_Y);
	if (w < 1 || h < 1) return 0;
	
	GlImage*			img = new GlImage(w, h);
	if (!img || img->InitCheck() != B_OK) {
		delete img;
		return 0;
	}
	img->SetColor(0, 0, 0, 0);
	
	GlNode*				node = NewInstance(0);
	if (!node) return img;

	node->IncRefs();
	gl_generate_args	args;
	args.flags = GL_NODE_ICON_F;
	GlAlgo*				a = node->Generate(args);
	node->MakeEmpty();
	node->DecRefs();

	GlAlgo1d*			a1d = (a) ? a->As1d() : 0;
	if (a1d) {
		GlCache1d		cache;
		cache.Render(a1d, img, GlRect(0, 0, w, h), GlRect(0, 0, w, h));
	}
	delete a;
	
	return img;
}

BView* GlNode1d::NewView(gl_new_view_params& params) const
{
	if (params.viewType != GL_INSPECTOR_VIEW) return inherited::NewView(params);
	ArpVALIDATE(Parent(), return 0);

	GlStrainedParamList		list;
	status_t				err = GetParams(list);
	if (err != B_OK) return 0;
//	if (GetParams(params) != B_OK) return 0;

	GlParamView*		v = new GlParamView(params, Parent()->Id(), Id());
	if (!v) return 0;

	float					sx = float(Prefs().GetInt32(ARP_PADX)),
							sy = float(Prefs().GetInt32(ARP_PADY));
	float					fh = v->ViewFontHeight();
//	float					div = get_divider(params, this);
	v->mRect.Set(sx, sy, 152, sy + fh);
	v->AddLabel(v->mRect, "label", AddOn()->Label());

	v->mRect.Set(v->mRect.left, v->mRect.bottom + sy, v->mRect.right, v->mRect.bottom + sy + 50);
	v->AddVisualView(v->mRect, "bm", NewVisual(params.ref), 0);

	v->AddParamControls(list);

	return v;
}

void SeqPhrasePropertyWindow::AddViews(BRect frame)
{
	mBg = new BView(frame, "bg", B_FOLLOW_ALL, B_WILL_DRAW);
	if (!mBg) return;
	mBg->SetViewColor( Prefs().Color(AM_AUX_WINDOW_BG_C) );
	AddChild(mBg);
	
	float		fh = arp_get_font_height(mBg);
	float		borderX = Prefs().Size(BORDER_X), borderY = Prefs().Size(BORDER_Y);
	float		spaceX = Prefs().Size(SPACE_X), spaceY = Prefs().Size(SPACE_Y);
	float		divider = mBg->StringWidth("Color:") + 10;
	/* The Name field.
	 */
	BRect		f(borderX, borderY, frame.Width() - borderX, borderY + fh);
	mNameCtrl = new BTextControl(f, "name_ctrl", "Name:", NULL, new BMessage(NAME_MSG), B_FOLLOW_LEFT_RIGHT | B_FOLLOW_TOP);
	if (mNameCtrl) {
		f.top = mNameCtrl->Frame().bottom;
		mNameCtrl->SetDivider(divider);
		mNameCtrl->MakeFocus(true);
		mNameCtrl->SetModificationMessage(new BMessage(NAME_MSG) );
		mBg->AddChild(mNameCtrl);
	}
	/* The Time field.
	 */
	f.top += spaceY;
	const char*		timeStr = "Time:";
	f.right = divider;
	f.bottom = f.top + fh;
	mTimeLabel = new BStringView(f, "time_label", timeStr, B_FOLLOW_LEFT | B_FOLLOW_TOP);
	if (mTimeLabel) mBg->AddChild(mTimeLabel);
	mTimeCtrl = new AmTimeView(mSongRef);
	if (mTimeCtrl) {
		mTimeCtrl->MoveTo(f.right + 5, f.top);
		mTimeCtrl->SetEnabled(false);
		mBg->AddChild(mTimeCtrl);
		mTimeCtrl->StartWatching(this, ARPMSG_TIME_VIEW_CHANGED);
		f.top = mTimeCtrl->Frame().bottom;
	}
	/* The color controls.
	 */
	f.top += spaceY;
	f.bottom = f.top + fh;
	f.right = frame.Width() - spaceX;
	mColorField = new_color_field(f);
	if (mColorField) {
		mColorField->SetDivider(divider);
		mBg->AddChild(mColorField);
		f.top = f.bottom;
	}

	mColorCtrl = new BColorControl(	BPoint(spaceX, f.top + spaceY + spaceY),
									B_CELLS_32x8, 2, "color_control",
									new BMessage(COLOR_CHANGED_MSG) );

	if (mColorCtrl) {
		mBg->AddChild(mColorCtrl);
	}

}

/* Load the Lookup section into memory */
static void LoadLookupPrefs( void )
{
    CtlSetValue( GetObjectPtr( frmPrefsLookupAlwaysActive ),
        ( Prefs()->selectWordTap != SELECT_WORD_TAP_NONE ) );
    lookupAction = Prefs()->selectedWordAction;
    SetListToSelection( frmPrefsLookupActionList,
        frmPrefsLookupActionPopup, lookupAction );
}