C++ BRect::IntegerWidth方法代码示例

// ToolDraw
void
PickManipulator::ToolDraw(BView* into, BRect itemFrame)
{
	if (itemFrame.IntegerWidth() < 4)
		return;

	itemFrame.InsetBy(1, 1);
	int32 dotCount = itemFrame.IntegerHeight() / 3;

	BPoint p(itemFrame.LeftTop());
	for (int32 i = 0; i < dotCount; i++) {
		into->SetHighColor(0, 0, 0, 75);
		into->StrokeLine(p, p);
		p = p + BPoint(1, 1);
		into->SetHighColor(255, 255, 255, 200);
		into->StrokeLine(p, p);
		p = p + BPoint(-1, 2);
	}

	itemFrame.right--;
	if (itemFrame.IntegerWidth() < 6)
		return;

	p = itemFrame.RightTop();
	for (int32 i = 0; i < dotCount; i++) {
		into->SetHighColor(0, 0, 0, 75);
		into->StrokeLine(p, p);
		p = p + BPoint(1, 1);
		into->SetHighColor(255, 255, 255, 200);
		into->StrokeLine(p, p);
		p = p + BPoint(-1, 2);
	}
}

Tearoff::Tearoff(BRect frame, const char *name, MainWindow *parent, MenuName menu_name, int idx)
	: BWindow(frame, name, B_FLOATING_WINDOW, B_NOT_RESIZABLE | B_NOT_ZOOMABLE, 0)
{
	int y = 0;
	BFont font;
	BMenu *menu;
	
	this->parent = parent;
	menu = parent->GetMenu(menu_name);
	menu->GetFont(&font);
	for(int i = 1; i < menu->CountItems(); i++) {
		BMenuItem *item = menu->ItemAt(i);
		if(item->Message()) {
			BButton *b = new BButton(BRect(0, y, frame.IntegerWidth(), y + TEAROFF_BUTTON_HEIGHT), "", item->Label(), new BMessage(item->Message()->what), B_FOLLOW_LEFT | B_FOLLOW_TOP, B_WILL_DRAW); 
			font.SetSize(TEAROFF_FONT_SIZE);
			b->SetFont(&font);
			AddChild(b);
			y = y + TEAROFF_BUTTON_HEIGHT;
		}
	}
	this->ResizeTo(frame.IntegerWidth(), y);
	this->SetTitle(menu->Name());
	this->index = idx;
	delete menu;
}

/*****************************************************************************
 * VideoWindow::SetFullScreen
 *****************************************************************************/
void
VideoWindow::SetFullScreen(bool doIt)
{
    if (doIt)
    {
        SetLook( B_NO_BORDER_WINDOW_LOOK );
        BScreen screen( this );
        BRect rect = screen.Frame();
        Activate();
        MoveTo(0.0, 0.0);
        ResizeTo(rect.IntegerWidth(), rect.IntegerHeight());
        be_app->ObscureCursor();
        fInterfaceShowing = false;
        fSettings->AddFlags(VideoSettings::FLAG_FULL_SCREEN);
    }
    else
    {
        SetLook( B_TITLED_WINDOW_LOOK );
        MoveTo(winSize.left, winSize.top);
        ResizeTo(winSize.IntegerWidth(), winSize.IntegerHeight());
        be_app->ShowCursor();
        fInterfaceShowing = true;
        fSettings->ClearFlags(VideoSettings::FLAG_FULL_SCREEN);
    }
}

status_t MesaDriver::CopyPixelsIn(BBitmap *bitmap, BPoint location)
{
	color_space scs = bitmap->ColorSpace();
	color_space dcs = m_bitmap->ColorSpace();

	if (scs != dcs && (dcs != B_RGBA32 || scs != B_RGB32)) {
		printf("CopyPixelsIn(): incompatible color space: %s != %s\n",
			color_space_name(scs),
			color_space_name(dcs));
		return B_BAD_TYPE;
	}
	
	// debugger("CopyPixelsIn()");

	BRect sr = bitmap->Bounds();
	BRect dr = m_bitmap->Bounds();

	sr = sr & dr.OffsetBySelf(location);
	dr = sr.OffsetByCopy(-location.x, -location.y); 
	
	uint8 *ps = (uint8 *) bitmap->Bits();
	uint8 *pd = (uint8 *) m_bitmap->Bits();
	uint32 *s, *d;
	uint32 y;
	for (y = (uint32) sr.top; y <= (uint32) sr.bottom; y++) {
		s = (uint32 *) (ps + y * bitmap->BytesPerRow());
		s += (uint32) sr.left;
		
		d = (uint32 *) (pd + (y + (uint32) (dr.top - sr.top)) * m_bitmap->BytesPerRow());
		d += (uint32) dr.left;
		
		memcpy(d, s, dr.IntegerWidth() * 4);
	}
	return B_OK;
}

void MesaDriver::GetBufferSize(GLframebuffer * framebuffer, GLuint *width,
                            GLuint *height)
{
   GET_CURRENT_CONTEXT(ctx);
   if (!ctx)
		return;

   MesaDriver * md = (MesaDriver *) ctx->DriverCtx;
   BGLView *bglview = md->m_bglview;
   assert(bglview);

   BRect b = bglview->Bounds();
   *width = (GLuint) b.IntegerWidth() + 1; // (b.right - b.left + 1);
   *height = (GLuint) b.IntegerHeight() + 1; // (b.bottom - b.top + 1);
   md->m_bottom = (GLint) b.bottom;

   if (ctx->Visual.doubleBufferMode) {
      if (*width != md->m_width || *height != md->m_height) {
         // allocate new size of back buffer bitmap
         if (md->m_bitmap)
            delete md->m_bitmap;
         BRect rect(0.0, 0.0, *width - 1, *height - 1);
         md->m_bitmap = new BBitmap(rect, B_RGBA32);
      }
   }
   else
   {
      md->m_bitmap = NULL;
   }

   md->m_width = *width;
   md->m_height = *height;
}

ViewBuffer::ViewBuffer(BRect frame)
	:	BView(frame, "ViewBuffer", B_FOLLOW_ALL, B_WILL_DRAW | B_FRAME_EVENTS),
		fColumns(frame.IntegerWidth() / CHAR_WIDTH),
		fRows(frame.IntegerHeight() / CHAR_HEIGHT),
		fGlyphGrid(NULL),
		fResizeCallback(NULL),
		// initially, the cursor is hidden
		fCursorX(-1),
		fCursorY(-1)
{
	SetFont(be_fixed_font);
	
	// initialize private palette
	for (int i = 0; i < 8; i++) {
		fPalette[i].red = (sPalette32[i] >> 16) & 0xff;
		fPalette[i].green = (sPalette32[i] >> 8) & 0xff;
		fPalette[i].blue = (sPalette32[i] >> 0) & 0xff;
		fPalette[i].alpha = 0xff;
	}

	// initialize glyph grid
	uint32 size = fRows * fColumns;
	if (size > 0) {
		fGlyphGrid = new uint16[size];
		memset(fGlyphGrid, 0, size * sizeof(uint16));
	}
}

// FrameResized
void
ColorField::FrameResized(float width, float height)
{
	BRect r = _BitmapRect();
	_AllocBitmap(r.IntegerWidth() + 1, r.IntegerHeight() + 1);
	Invalidate();
}

void
PeakView::FrameResized(float width, float height)
{
	BRect bitmapFrame = _BackBitmapFrame();
	_ResizeBackBitmap(bitmapFrame.IntegerWidth() + 1, fChannelCount);
	_UpdateBackBitmap();
}

static void testSetOriginAndScale4(BView *view, BRect frame)
{
	frame.InsetBy(2, 2);
	BPoint center = centerPoint(frame);
	
	BRect r(0, 0, frame.IntegerWidth() / 2, frame.IntegerHeight() / 2);
	view->SetOrigin(center);
	view->FillRect(r);
	
	view->SetScale(0.5);
	view->SetHighColor(kRed);
	view->FillRect(r);
	
	view->PushState();
		// 
		view->SetOrigin(center.x+1, center.y);
			// +1 to work around BeOS bug
			// where setting the origin has no
			// effect if it is the same as
			// the previous value althou
			// it is from the "outer" coordinate
			// system
		view->SetHighColor(kGreen);
		view->FillRect(r);
	view->PopState();
}

/*!	\brief Returns the frame of the specified workspace within the
		workspaces view.
*/
BRect
WorkspacesView::_WorkspaceAt(int32 i)
{
	int32 columns, rows;
	_GetGrid(columns, rows);

	BRect frame = Bounds();
	ConvertToScreen(&frame);

	int32 width = frame.IntegerWidth() / columns;
	int32 height = frame.IntegerHeight() / rows;

	int32 column = i % columns;
	int32 row = i / columns;

	BRect rect(column * width, row * height, (column + 1) * width,
		(row + 1) * height);

	rect.OffsetBy(frame.LeftTop());

	// make sure there is no gap anywhere
	if (column == columns - 1)
		rect.right = frame.right;
	if (row == rows - 1)
		rect.bottom = frame.bottom;

	return rect;
}

Size2 OS_Haiku::get_screen_size(int p_screen) const {
	// TODO: make this work with the p_screen parameter
	BScreen *screen = new BScreen(window);
	BRect frame = screen->Frame();
	delete screen;
	return Size2i(frame.IntegerWidth() + 1, frame.IntegerHeight() + 1);
}

PPSize
DisplayDevice_Haiku::getDisplayResolution() const
{
	BScreen screen;
	BRect frame = screen.Frame();
	return PPSize(frame.IntegerWidth(), frame.IntegerHeight());
}

bool
Scaler::Matches(BRect rect, bool dither) const
{
	return fRect.IntegerWidth() == rect.IntegerWidth() &&
		fRect.IntegerHeight() == rect.IntegerHeight() &&
		fDither == dither;
}

void
ShowImageWindow::_SaveWidthAndHeight()
{
	if (fNavigator.CurrentPage() != 1)
		return;

	if (fImageView->Bitmap() == NULL)
		return;

	BRect bounds = fImageView->Bitmap()->Bounds();
	int32 width = bounds.IntegerWidth() + 1;
	int32 height = bounds.IntegerHeight() + 1;

	BNode node(&fNavigator.CurrentRef());
	if (node.InitCheck() != B_OK)
		return;

	const char* kWidthAttrName = "Media:Width";
	const char* kHeightAttrName = "Media:Height";

	int32 widthAttr;
	ssize_t attrSize = node.ReadAttr(kWidthAttrName, B_INT32_TYPE, 0,
		&widthAttr, sizeof(widthAttr));
	if (attrSize <= 0 || widthAttr != width)
		node.WriteAttr(kWidthAttrName, B_INT32_TYPE, 0, &width, sizeof(width));

	int32 heightAttr;
	attrSize = node.ReadAttr(kHeightAttrName, B_INT32_TYPE, 0,
		&heightAttr, sizeof(heightAttr));
	if (attrSize <= 0 || heightAttr != height)
		node.WriteAttr(kHeightAttrName, B_INT32_TYPE, 0, &height, sizeof(height));
}

SoftPipeRenderer::SoftPipeRenderer(BGLView *view, ulong options,
		BGLDispatcher* dispatcher)
	: BGLRenderer(view, options, dispatcher),
	fBitmap(NULL),
	fDirectModeEnabled(false),
	fInfo(NULL),
	fInfoLocker("info locker"),
	fOptions(options),
	fColorSpace(B_NO_COLOR_SPACE)
{
	CALLED();
	time_t beg, end;
	beg = time(NULL);
	hsp_init(options);
	end = time(NULL);
	TRACE("hsp_init time: %f.\n", difftime(end, beg));
	BRect b = GLView()->Bounds();
	fColorSpace = B_RGBA32;
	if (fDirectModeEnabled && fInfo != NULL) {
		fColorSpace = BScreen(GLView()->Window()).ColorSpace();
	}
	int32 width = b.IntegerWidth();// + 1;
	int32 height = b.IntegerHeight();// + 1;
	TRACE("ColorSpace:\t%s\n", color_space_name(fColorSpace));
	fBitmap = new BBitmap(BRect(0.f, 0.f, width /*- 1*/, height /*- 1*/), fColorSpace);
	fWidth = width;
	fHeight = height;
	beg = time(NULL);
	fContext = hsp_create_layer_context(fBitmap, 0);
	TRACE("context:\t%d\n", (int)fContext);
	end = time(NULL);
	TRACE("hsp_create_layer_context time: %f.\n", difftime(end, beg));
	if (!hsp_get_current_context())
		LockGL();
}