C++ Rect::extend方法代码示例

void Screen::flushScaleImage(ImageFrame *frame, const Common::Point &pt, int16 *xp, int16 *yp,
		int16 *width_, int16 *height_, int scaleVal) {
	Common::Point imgPos(pt.x + frame->sDrawXOffset(scaleVal), pt.y + frame->sDrawYOffset(scaleVal));
	Common::Rect newBounds(imgPos.x, imgPos.y, imgPos.x + frame->sDrawXSize(scaleVal),
		imgPos.y + frame->sDrawYSize(scaleVal));
	Common::Rect oldBounds(*xp, *yp, *xp + *width_, *yp + *height_);

	if (!_flushScreen) {
		// See if the areas of the old and new overlap, and if so combine the areas
		if (newBounds.intersects(oldBounds)) {
			Common::Rect mergedBounds = newBounds;
			mergedBounds.extend(oldBounds);
			mergedBounds.right += 1;
			mergedBounds.bottom += 1;

			slamRect(mergedBounds);
		} else {
			// The two areas are independent, so copy them both
			slamRect(newBounds);
			slamRect(oldBounds);
		}
	}

	*xp = newBounds.left;
	*yp = newBounds.top;
	*width_ = newBounds.width();
	*height_ = newBounds.height();
}

void Screen::flushImage(ImageFrame *frame, const Common::Point &pt, int16 *xp, int16 *yp, 
		int16 *width, int16 *height) {
	Common::Point imgPos = pt + frame->_offset;
	Common::Rect newBounds(imgPos.x, imgPos.y, imgPos.x + frame->_frame.w, imgPos.y + frame->_frame.h);
	Common::Rect oldBounds(*xp, *yp, *xp + *width, *yp + *height);

	if (!_flushScreen) {
		// See if the areas of the old and new overlap, and if so combine the areas
		if (newBounds.intersects(oldBounds)) {
			Common::Rect mergedBounds = newBounds;
			mergedBounds.extend(oldBounds);
			mergedBounds.right += 1;
			mergedBounds.bottom += 1;

			slamRect(mergedBounds);
		} else {
			// The two areas are independent, so copy them both
			slamRect(newBounds);
			slamRect(oldBounds);
		}
	}

	*xp = newBounds.left;
	*yp = newBounds.top;
	*width = newBounds.width();
	*height = newBounds.height();
}

void Sprite::removeFrame(const uint32 frameNum) {
	_frameArray[frameNum].frame->_referenceCount--;
	if (_frameArray[frameNum].frame->_referenceCount == 0)
		delete _frameArray[frameNum].frame;

	// Calculate the new bounds
	Common::Rect frameBounds;
	for (uint32 i = 0; i < _numFrames; i++) {
		if (i == frameNum)
			continue;

		Common::Rect r;
		_frameArray[i].frame->getSurfaceBounds(r);
		r.translate(_frameArray[i].frameLeft, _frameArray[i].frameTop);
		frameBounds.extend(r);
	}

	_frameArray.remove_at(frameNum);

	frameBounds.moveTo(_bounds.left, _bounds.top);
	setBounds(frameBounds);

	if (_currentFrameNum == frameNum)
		triggerRedraw();
	else if (_currentFrameNum != 0xffffffff && _currentFrameNum > frameNum)
		--_currentFrameNum;
}

void VisualText::createTexture() {
	Common::CodePage codePage = StarkSettings->getTextCodePage();
	Common::U32String unicodeText = Common::convertToU32String(_text.c_str(), codePage);

	// Get the font and required metrics
	const Graphics::Font *font = StarkFontProvider->getScaledFont(_fontType, _fontCustomIndex);
	uint scaledLineHeight = StarkFontProvider->getScaledFontHeight(_fontType, _fontCustomIndex);
	uint originalLineHeight = StarkFontProvider->getOriginalFontHeight(_fontType, _fontCustomIndex);
	uint maxScaledLineWidth = StarkGfx->scaleWidthOriginalToCurrent(_targetWidth);

	// Word wrap the text
	Common::Array<Common::U32String> lines;
	font->wordWrapText(unicodeText, maxScaledLineWidth, lines);

	// Use the actual font bounding box to prevent text from being cut off
	Common::Rect scaledRect;
	if (!lines.empty()) {
		scaledRect = font->getBoundingBox(lines[0]);
		for (uint i = 1; i < lines.size(); i++) {
			scaledRect.extend(font->getBoundingBox(lines[i], 0, scaledLineHeight * i));
		}
	}

	// Make sure lines have approximately consistent height regardless of the characters they use
	scaledRect.bottom = MAX<int16>(scaledRect.bottom, scaledLineHeight * lines.size());

	if (!isBlank()) {
		_originalRect.right = StarkGfx->scaleWidthCurrentToOriginal(scaledRect.right);
		_originalRect.bottom = originalLineHeight * lines.size();
	} else {
		// For Empty text, preserve the original width and height for being used as clicking area
		_originalRect.right = _targetWidth;
		_originalRect.bottom = _targetHeight;
	}

	// Create a surface to render to
	Graphics::Surface surface;
	surface.create(scaledRect.right, scaledRect.bottom, Gfx::Driver::getRGBAPixelFormat());

	uint32 color = surface.format.ARGBToColor(
			_color.a, _color.r, _color.g, _color.b
	);
	uint32 bgColor = surface.format.ARGBToColor(
			_backgroundColor.a, _backgroundColor.r, _backgroundColor.g, _backgroundColor.b
	);

	surface.fillRect(Common::Rect(surface.w, surface.h), bgColor);

	// Render the lines to the surface
	for (uint i = 0; i < lines.size(); i++) {
		font->drawString(&surface, lines[i], 0, scaledLineHeight * i, surface.w, color, _align);
	}

	// Create a texture from the surface
	_texture = _gfx->createTexture(&surface);
	_texture->setSamplingFilter(Gfx::Texture::kNearest);

	surface.free();
}

uint16 RobotDecoder::getFrameSize(Common::Rect &outRect) const {
	outRect.clip(0, 0);
	for (RobotScreenItemList::size_type i = 0; i < _screenItemList.size(); ++i) {
		ScreenItem &screenItem = *_screenItemList[i];
		outRect.extend(screenItem.getNowSeenRect(*_plane));
	}

	return _numFramesTotal;
}

void GfxAnimate::updateScreen(byte oldPicNotValid) {
	AnimateList::iterator it;
	const AnimateList::iterator end = _list.end();
	Common::Rect lsRect;
	Common::Rect workerRect;

	for (it = _list.begin(); it != end; ++it) {
		if (it->showBitsFlag || !(it->signal & (kSignalRemoveView | kSignalNoUpdate) ||
										(!(it->signal & kSignalRemoveView) && (it->signal & kSignalNoUpdate) && oldPicNotValid))) {
			lsRect.left = readSelectorValue(_s->_segMan, it->object, SELECTOR(lsLeft));
			lsRect.top = readSelectorValue(_s->_segMan, it->object, SELECTOR(lsTop));
			lsRect.right = readSelectorValue(_s->_segMan, it->object, SELECTOR(lsRight));
			lsRect.bottom = readSelectorValue(_s->_segMan, it->object, SELECTOR(lsBottom));

			workerRect = lsRect;
			workerRect.clip(it->celRect);

			if (!workerRect.isEmpty()) {
				workerRect = lsRect;
				workerRect.extend(it->celRect);
			} else {
				_paint16->bitsShow(lsRect);
				workerRect = it->celRect;
			}
			writeSelectorValue(_s->_segMan, it->object, SELECTOR(lsLeft), it->celRect.left);
			writeSelectorValue(_s->_segMan, it->object, SELECTOR(lsTop), it->celRect.top);
			writeSelectorValue(_s->_segMan, it->object, SELECTOR(lsRight), it->celRect.right);
			writeSelectorValue(_s->_segMan, it->object, SELECTOR(lsBottom), it->celRect.bottom);
			// may get used for debugging
			//_paint16->frameRect(workerRect);
			_paint16->bitsShow(workerRect);

			if (it->signal & kSignalHidden)
				it->signal |= kSignalRemoveView;
		}
	}
	// use this for debug purposes
	// _screen->copyToScreen();
}

uint32 Sprite::addFrame(SpriteFrame *frame, const CoordType left, const CoordType top) {
	SpriteFrameRec frameRecord;
	frameRecord.frame = frame;
	frameRecord.frameLeft = left;
	frameRecord.frameTop = top;
	_frameArray.push_back(frameRecord);
	_numFrames++;
	frame->_referenceCount++;

	Common::Rect frameBounds;
	frame->getSurfaceBounds(frameBounds);

	// 9/3/96
	// BB Should this be + left or - left?
	frameBounds.moveTo(_bounds.left + left, _bounds.top + top);

	frameBounds.extend(_bounds);

	if (_bounds != frameBounds)
		setBounds(frameBounds);

	return _numFrames - 1;
}

bool Screen::unionRectangle(Common::Rect &destRect, const Common::Rect &src1, const Common::Rect &src2) {
	destRect = src1;
	destRect.extend(src2);

	return !destRect.isEmpty();
}