C++ rect函数代码示例

PassOwnPtr<DragImage> DragImage::create(const KURL& url, const String& inLabel, const FontDescription& systemFont, float deviceScaleFactor)
{
    const Font labelFont = deriveDragLabelFont(kDragLinkLabelFontSize, FontWeightBold, systemFont);
    const Font urlFont = deriveDragLabelFont(kDragLinkUrlFontSize, FontWeightNormal, systemFont);
    FontCachePurgePreventer fontCachePurgePreventer;

    bool drawURLString = true;
    bool clipURLString = false;
    bool clipLabelString = false;

    String urlString = url.string();
    String label = inLabel.stripWhiteSpace();
    if (label.isEmpty()) {
        drawURLString = false;
        label = urlString;
    }

    // First step is drawing the link drag image width.
    TextRun labelRun(label.impl());
    TextRun urlRun(urlString.impl());
    IntSize labelSize(labelFont.width(labelRun), labelFont.fontMetrics().ascent() + labelFont.fontMetrics().descent());

    if (labelSize.width() > kMaxDragLabelStringWidth) {
        labelSize.setWidth(kMaxDragLabelStringWidth);
        clipLabelString = true;
    }

    IntSize urlStringSize;
    IntSize imageSize(labelSize.width() + kDragLabelBorderX * 2, labelSize.height() + kDragLabelBorderY * 2);

    if (drawURLString) {
        urlStringSize.setWidth(urlFont.width(urlRun));
        urlStringSize.setHeight(urlFont.fontMetrics().ascent() + urlFont.fontMetrics().descent());
        imageSize.setHeight(imageSize.height() + urlStringSize.height());
        if (urlStringSize.width() > kMaxDragLabelStringWidth) {
            imageSize.setWidth(kMaxDragLabelWidth);
            clipURLString = true;
        } else
            imageSize.setWidth(std::max(labelSize.width(), urlStringSize.width()) + kDragLabelBorderX * 2);
    }

    // We now know how big the image needs to be, so we create and
    // fill the background
    IntSize scaledImageSize = imageSize;
    scaledImageSize.scale(deviceScaleFactor);
    OwnPtr<ImageBuffer> buffer(ImageBuffer::create(scaledImageSize));
    if (!buffer)
        return nullptr;

    buffer->canvas()->scale(deviceScaleFactor, deviceScaleFactor);

    const float DragLabelRadius = 5;

    IntRect rect(IntPoint(), imageSize);
    SkPaint backgroundPaint;
    backgroundPaint.setColor(SkColorSetRGB(140, 140, 140));
    SkRRect rrect;
    rrect.setRectXY(SkRect::MakeWH(imageSize.width(), imageSize.height()), DragLabelRadius, DragLabelRadius);
    buffer->canvas()->drawRRect(rrect, backgroundPaint);

    // Draw the text
    SkPaint textPaint;
    if (drawURLString) {
        if (clipURLString)
            urlString = StringTruncator::centerTruncate(urlString, imageSize.width() - (kDragLabelBorderX * 2.0f), urlFont);
        IntPoint textPos(kDragLabelBorderX, imageSize.height() - (kLabelBorderYOffset + urlFont.fontMetrics().descent()));
        TextRun textRun(urlString);
        urlFont.drawText(buffer->canvas(), TextRunPaintInfo(textRun), textPos, deviceScaleFactor, textPaint);
    }

    if (clipLabelString)
        label = StringTruncator::rightTruncate(label, imageSize.width() - (kDragLabelBorderX * 2.0f), labelFont);

    bool hasStrongDirectionality;
    TextRun textRun = textRunWithDirectionality(label, &hasStrongDirectionality);
    IntPoint textPos(kDragLabelBorderX, kDragLabelBorderY + labelFont.fontDescription().computedPixelSize());
    if (hasStrongDirectionality && textRun.direction() == RTL) {
        float textWidth = labelFont.width(textRun);
        int availableWidth = imageSize.width() - kDragLabelBorderX * 2;
        textPos.setX(availableWidth - ceilf(textWidth));
    }
    labelFont.drawBidiText(buffer->canvas(), TextRunPaintInfo(textRun), FloatPoint(textPos), Font::DoNotPaintIfFontNotReady, deviceScaleFactor, textPaint);

    RefPtr<Image> image = buffer->newImageSnapshot();
    return DragImage::create(image.get(), DoNotRespectImageOrientation, deviceScaleFactor);
}

LRESULT CALLBACK NotificationWnd::WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)\
{
    NotificationWnd *wnd = (NotificationWnd *)GetWindowLongPtr(hwnd, GWLP_USERDATA);
    if (WM_ERASEBKGND == message) {
        // do nothing, helps to avoid flicker
        return TRUE;
    }
    if (WM_TIMER == message && TIMEOUT_TIMER_ID == wParam) {
        if (wnd->notificationCb)
            wnd->notificationCb->RemoveNotification(wnd);
        else
            delete wnd;
        return 0;
    }
    if (WM_PAINT == message && wnd) {
        PAINTSTRUCT ps;
        HDC hdcWnd = BeginPaint(hwnd, &ps);

        ClientRect rect(hwnd);
        DoubleBuffer buffer(hwnd, rect);
        HDC hdc = buffer.GetDC();
        HFONT oldfnt = SelectFont(hdc, wnd->font);

        RECT rTmp = rect.ToRECT();
        DrawFrameControl(hdc, &rTmp, DFC_BUTTON, DFCS_BUTTONPUSH);
        if (wnd->highlight) {
            SetBkMode(hdc, OPAQUE);
            SetTextColor(hdc, GetSysColor(COLOR_HIGHLIGHTTEXT));
            SetBkColor(hdc, GetSysColor(COLOR_HIGHLIGHT));
        }
        else {
            SetBkMode(hdc, TRANSPARENT);
            SetTextColor(hdc, GetSysColor(COLOR_WINDOWTEXT));
        }

        rect.Inflate(-PADDING, -PADDING);
        RectI rectMsg = rect;
        if (wnd->hasProgress)
            rectMsg.dy -= PROGRESS_HEIGHT + PADDING / 2;
        if (wnd->hasCancel)
            rectMsg.dx -= 20;
        ScopedMem<WCHAR> text(win::GetText(hwnd));
        rTmp = rectMsg.ToRECT();
        DrawText(hdc, text, -1, &rTmp, DT_SINGLELINE | DT_NOPREFIX);

        if (wnd->hasCancel) {
            rTmp = GetCancelRect(hwnd).ToRECT();
            DrawFrameControl(hdc, &rTmp, DFC_CAPTION, DFCS_CAPTIONCLOSE | DFCS_FLAT);
        }

        if (wnd->hasProgress) {
            rect.dx = wnd->progressWidth;
            rect.y += rectMsg.dy + PADDING / 2;
            rect.dy = PROGRESS_HEIGHT;
            PaintRect(hdc, rect);

            rect.x += 2;
            rect.dx = (wnd->progressWidth - 3) * wnd->progress / 100;
            rect.y += 2;
            rect.dy -= 3;

            HBRUSH brush = GetStockBrush(BLACK_BRUSH);
            rTmp = rect.ToRECT();
            FillRect(hdc, &rTmp, brush);
            DeleteObject(brush);
        }

        SelectFont(hdc, oldfnt);

        buffer.Flush(hdcWnd);
        EndPaint(hwnd, &ps);
        return 0;
    }
    if (WM_SETCURSOR == message && wnd->hasCancel) {
        PointI pt;
        if (GetCursorPosInHwnd(hwnd, pt) &&
            GetCancelRect(hwnd).Contains(pt)) {
            SetCursor(LoadCursor(NULL, IDC_HAND));
            return TRUE;
        }
    }
    if (WM_LBUTTONUP == message && wnd->hasCancel) {
        if (GetCancelRect(hwnd).Contains(PointI(GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)))) {
            if (wnd->notificationCb)
                wnd->notificationCb->RemoveNotification(wnd);
            else
                delete wnd;
            return 0;
        }
    }
    return DefWindowProc(hwnd, message, wParam, lParam);
}

void CDrawRectOutline::MoveField(int w, CDPoint r)
{
	Display();

	CDRect rect( m_point_a.x, m_point_a.y, m_point_b.x, m_point_b.y );
	rect.NormalizeRect();

	switch (w)
	{
	case CRectTracker::hitTopLeft:
		rect.left += r.x;
		rect.top += r.y;
		break;
	case CRectTracker::hitTopRight:
		rect.right += r.x;
		rect.top += r.y;
		break;
	case CRectTracker::hitBottomRight:
		rect.right += r.x;
		rect.bottom += r.y;
		break;
	case CRectTracker::hitBottomLeft:
		rect.left += r.x;
		rect.bottom += r.y;
		break;	
	case CRectTracker::hitTop:
		rect.top += r.y;
		break;		
	case CRectTracker::hitRight:
		rect.right += r.x;
		break;		
	case CRectTracker::hitBottom:
		rect.bottom += r.y;
		break;		
	case CRectTracker::hitLeft:
		rect.left += r.x;
		break;
	case 11:
	case CRectTracker::hitMiddle:
		rect += r;
		break;		
	}

	if (m_point_a.x < m_point_b.x)
	{
		m_point_a.x = rect.left;
		m_point_b.x = rect.right;
	}
	else
	{
		m_point_b.x = rect.left;
		m_point_a.x = rect.right;
	}

	if (m_point_a.y < m_point_b.y)
	{
		m_point_a.y = rect.top;
		m_point_b.y = rect.bottom;
	}
	else
	{
		m_point_b.y = rect.top;
		m_point_a.y = rect.bottom;
	}

	Display();
}

int StructureManager::placeStructureFromDeed(CreatureObject* creature, StructureDeed* deed, float x, float y, int angle) {
	ManagedReference<Zone*> zone = creature->getZone();

	//Already placing a structure?
	if (zone == NULL || creature->containsActiveSession(SessionFacadeType::PLACESTRUCTURE))
		return 1;

	ManagedReference<PlanetManager*> planetManager = zone->getPlanetManager();

	String serverTemplatePath = deed->getGeneratedObjectTemplate();

	if (deed->getFaction() != 0 && creature->getFaction() != deed->getFaction()) {
		creature->sendSystemMessage("You are not the correct faction");
		return 1;
	}

	Reference<SharedStructureObjectTemplate*> serverTemplate =
			dynamic_cast<SharedStructureObjectTemplate*>(templateManager->getTemplate(serverTemplatePath.hashCode()));

	//Check to see if this zone allows this structure.
	if (serverTemplate == NULL || !serverTemplate->isAllowedZone(zone->getZoneName())) {
		creature->sendSystemMessage("@player_structure:wrong_planet"); //That deed cannot be used on this planet.
		return 1;
	}

	if (!planetManager->isBuildingPermittedAt(x, y, creature)) {
		creature->sendSystemMessage("@player_structure:not_permitted"); //Building is not permitted here.
		return 1;
	}

	SortedVector<ManagedReference<ActiveArea*> > objects;
	zone->getInRangeActiveAreas(x, y, &objects, true);

	ManagedReference<CityRegion*> city;

	for (int i = 0; i < objects.size(); ++i) {
		ActiveArea* area = objects.get(i).get();

		if (!area->isRegion())
			continue;

		city = dynamic_cast<Region*>(area)->getCityRegion();

		if (city != NULL)
			break;
	}

	SortedVector<ManagedReference<QuadTreeEntry*> > inRangeObjects;
	zone->getInRangeObjects(x, y, 128, &inRangeObjects, true);

	float placingFootprintLength0, placingFootprintWidth0, placingFootprintLength1, placingFootprintWidth1;

	if (!getStructureFootprint(serverTemplate, angle, placingFootprintLength0, placingFootprintWidth0, placingFootprintLength1, placingFootprintWidth1)) {
		float x0 = x + placingFootprintWidth0;
		float y0 = y + placingFootprintLength0;
		float x1 = x + placingFootprintWidth1;
		float y1 = y + placingFootprintLength1;

		BoundaryRectangle placingFootprint(x0, y0, x1, y1);

		//info("placing center x:" + String::valueOf(x) + " y:" + String::valueOf(y), true);
		//info("placingFootprint x0:" + String::valueOf(x0) + " y0:" + String::valueOf(y0) + " x1:" + String::valueOf(x1) + " y1:" + String::valueOf(y1), true);

		for (int i = 0; i < inRangeObjects.size(); ++i) {
			SceneObject* scene = inRangeObjects.get(i).castTo<SceneObject*>();

			if (scene == NULL)
				continue;

			float l0 = -5; //Along the x axis.
			float w0 = -5; //Along the y axis.
			float l1 = 5;
			float w1 = 5;

			if (getStructureFootprint(scene->getObjectTemplate(), scene->getDirectionAngle(), l0, w0, l1, w1))
				continue;

			float xx0 = scene->getPositionX() + (w0 + 0.1);
			float yy0 = scene->getPositionY() + (l0 + 0.1);
			float xx1 = scene->getPositionX() + (w1 - 0.1);
			float yy1 = scene->getPositionY() + (l1 - 0.1);

			BoundaryRectangle rect(xx0, yy0, xx1, yy1);

			//info("existing footprint xx0:" + String::valueOf(xx0) + " yy0:" + String::valueOf(yy0) + " xx1:" + String::valueOf(xx1) + " yy1:" + String::valueOf(yy1), true);

			// check 4 points of the current rect
			if (rect.containsPoint(x0, y0)
					|| rect.containsPoint(x0, y1)
					|| rect.containsPoint(x1, y0)
					|| rect.containsPoint(x1, y1) ) {

				//info("existing footprint contains placing point", true);

				creature->sendSystemMessage("@player_structure:no_room"); //there is no room to place the structure here..

				return 1;
			}

			if (placingFootprint.containsPoint(xx0, yy0)
//.........这里部分代码省略.........

void CloudView::resizeEvent(QResizeEvent *event)
{
    resizer_->move(rect().bottomRight() - resizer_->rect().bottomRight());
    resizer_->raise();
}

QSEqualsResult QSRectClass::isEqual(const QSObject &a, const QSObject &b) const
{
  if (!b.isA(this))
    return EqualsNotEqual;
  return (QSEqualsResult)(*rect(&a) == *rect(&b));
}

void CDuiEdit::DrawControl(CDC &dc, CRect rcUpdate)
{
	Graphics graphics(dc);

	DrawImageFrame(graphics, m_pImage, m_rc, m_EditState * m_sizeImage.cx, 0, m_sizeImage.cx, m_sizeImage.cy, 4);

	if(m_pLeftImage)
	{
		CRect  rc;
		rc.left = m_rc.left + 2;
		rc.top = m_rc.top + (m_rc.Height() - m_sizeLeftImage.cy) / 2;
		rc.right = rc.left + m_sizeLeftImage.cx;
		rc.bottom = rc.top + m_sizeLeftImage.cy;
		
		if(m_nLeftImageCount > m_buttonState)
		{
			graphics.DrawImage(m_pLeftImage, RectF((Gdiplus::REAL)rc.left , (Gdiplus::REAL)rc.top, (Gdiplus::REAL)rc.Width(), (Gdiplus::REAL)rc.Height()),
				(Gdiplus::REAL)(m_buttonState * m_sizeLeftImage.cx), 0, (Gdiplus::REAL)m_sizeLeftImage.cx, (Gdiplus::REAL)m_sizeLeftImage.cy, UnitPixel);
		}else
		{
			graphics.DrawImage(m_pLeftImage, RectF((Gdiplus::REAL)rc.left , (Gdiplus::REAL)rc.top, (Gdiplus::REAL)rc.Width(), (Gdiplus::REAL)rc.Height()),
				0, 0, (Gdiplus::REAL)m_sizeLeftImage.cx, (Gdiplus::REAL)m_sizeLeftImage.cy, UnitPixel);
		}
	}

	if(m_pSmallImage)
	{
		CRect  rc;
		rc.left = m_rc.right - m_sizeSmallImage.cx - 2;
		rc.top = m_rc.top + (m_rc.Height() - m_sizeSmallImage.cy) / 2;
		rc.right = rc.left + m_sizeSmallImage.cx;
		rc.bottom = rc.top + m_sizeSmallImage.cy;
		
		if(m_nSmallImageCount > m_buttonState)
		{
			graphics.DrawImage(m_pSmallImage, RectF((Gdiplus::REAL)rc.left , (Gdiplus::REAL)rc.top, (Gdiplus::REAL)rc.Width(), (Gdiplus::REAL)rc.Height()),
				(Gdiplus::REAL)(m_buttonState * m_sizeSmallImage.cx), 0, (Gdiplus::REAL)m_sizeSmallImage.cx, (Gdiplus::REAL)m_sizeSmallImage.cy, UnitPixel);
		}else
		{
			graphics.DrawImage(m_pSmallImage, RectF((Gdiplus::REAL)rc.left , (Gdiplus::REAL)rc.top, (Gdiplus::REAL)rc.Width(), (Gdiplus::REAL)rc.Height()),
				0, 0, (Gdiplus::REAL)m_sizeSmallImage.cx, (Gdiplus::REAL)m_sizeSmallImage.cy, UnitPixel);
		}
	}

	BSTR bsFont = m_strFont.AllocSysString();
	FontFamily fontFamily(bsFont);
	Font font(&fontFamily, (REAL)m_nFontWidth, m_fontStyle, UnitPixel);
	SolidBrush solidBrush(m_clrText);
	SolidBrush solidBrushTip(m_clrTooltip);
	graphics.SetTextRenderingHint( TextRenderingHintClearTypeGridFit );
	::SysFreeString(bsFont);
	StringFormat strFormat;
	strFormat.SetAlignment(StringAlignmentNear);		// 水平方向左对齐
	if(!m_bMultiLine)
	{
		// 单行文字
		strFormat.SetLineAlignment(StringAlignmentCenter);	// 垂直方向中间对齐
		strFormat.SetFormatFlags( StringFormatFlagsNoWrap | StringFormatFlagsMeasureTrailingSpaces);
	}else
	{
		strFormat.SetLineAlignment(StringAlignmentNear);	// 垂直方向上对齐
	}

	RectF rect((Gdiplus::REAL)m_rcText.left, (Gdiplus::REAL)(m_rcText.top+2), (Gdiplus::REAL)m_rcText.Width(), (Gdiplus::REAL)(m_rcText.Height()-2));

	if(!m_strTitle.IsEmpty())
	{
		// 文字非空
		CString strTitle = m_strTitle;
		if(m_bPassWord)
		{
			int nlen = strTitle.GetLength();
			strTitle = "";
			for(int i = 0; i < nlen; i++)
			{
				strTitle += '*';
			}
		}

		BSTR bsTitle = strTitle.AllocSysString();
		graphics.DrawString(bsTitle, (INT)wcslen(bsTitle), &font, rect, &strFormat, &solidBrush);
		::SysFreeString(bsTitle);
	}else
	if(!m_strTooltip.IsEmpty())
	{
		// 如果没有文字,但设置了tooltip,则显示tooltip
		BSTR bsTooltip = m_strTooltip.AllocSysString();
		graphics.DrawString(bsTooltip, (INT)wcslen(bsTooltip), &font, rect, &strFormat, &solidBrushTip);
		::SysFreeString(bsTooltip);
	}
}

void rect_empty()
{
rect(buffer,cursor_x,cursor_y,cursor_x+20,cursor_y+20,makecol(0,0,255));
draw_sprite(screen,buffer,0,0);
}

void AreaDialog::mouseMoveEvent(QMouseEvent* e)
{
  mMouseMagnifier = false;

  if (mMouseDown) {

    mMousePos = e->pos();

    if (mNewSelection) {
      QRect r = rect();

      mSelection = QRect(mDragStartPoint, limitPointToRect(mMousePos, r)).normalized();
    }
    else if (mMouseOverHandle == 0) { // moving the whole selection
      QRect r = rect().normalized(), s = mSelectionBeforeDrag.normalized();
      QPoint p = s.topLeft() + e->pos() - mDragStartPoint;
      r.setBottomRight(r.bottomRight() - QPoint(s.width(), s.height()));

      if (!r.isNull() && r.isValid())
        mSelection.moveTo(limitPointToRect(p, r));
    }
    else {// dragging a handle
      QRect r = mSelectionBeforeDrag;
      QPoint offset = e->pos() - mDragStartPoint;

      if (mMouseOverHandle == &mTLHandle || mMouseOverHandle == &mTHandle
       || mMouseOverHandle == &mTRHandle) // dragging one of the top handles
      {
        r.setTop(r.top() + offset.y());
      }

      if (mMouseOverHandle == &mTLHandle || mMouseOverHandle == &mLHandle
       || mMouseOverHandle == &mBLHandle) // dragging one of the left handles
      {
        r.setLeft(r.left() + offset.x());
      }

      if (mMouseOverHandle == &mBLHandle || mMouseOverHandle == &mBHandle
       || mMouseOverHandle == &mBRHandle) // dragging one of the bottom handles
      {
        r.setBottom(r.bottom() + offset.y());
      }

      if (mMouseOverHandle == &mTRHandle || mMouseOverHandle == &mRHandle
       || mMouseOverHandle == &mBRHandle) // dragging one of the right handles
      {
        r.setRight(r.right() + offset.x());
      }

      r = r.normalized();
      r.setTopLeft(limitPointToRect(r.topLeft(), rect()));
      r.setBottomRight(limitPointToRect(r.bottomRight(), rect()));
      mSelection = r;
    }

    if (qApp->keyboardModifiers() & Qt::ControlModifier)
    {
      // The lazy 1:1 aspect ratio approach!
      mSelection.setHeight(mSelection.width());
    }

    if (mAcceptWidget) {
      QPoint acceptPos = e->pos();
      QRect  acceptRect = QRect(acceptPos, QSize(120, 70));

      // Prevent the widget from overlapping the handles
      if (acceptRect.intersects(mTLHandle)) {
        acceptPos = mTLHandle.bottomRight() + QPoint(2, 2); // Corner case
      }

      if (acceptRect.intersects(mBRHandle)) {
        acceptPos = mBRHandle.bottomRight();
      }

      if (acceptRect.intersects(mBHandle)) {
        acceptPos = mBHandle.bottomRight();
      }

      if (acceptRect.intersects(mRHandle)) {
        acceptPos = mRHandle.topRight();
      }

      if (acceptRect.intersects(mTHandle)) {
        acceptPos = mTHandle.bottomRight();
      }

      if ((acceptPos.x()+120) > mScreenshot->pixmap().rect().width())
        acceptPos.setX(acceptPos.x()-120);

      if ((acceptPos.y()+70) > mScreenshot->pixmap().rect().height())
        acceptPos.setY(acceptPos.y()-70);

      mAcceptWidget->move(acceptPos);
    }

    update();
  }
  else
  {
    if (mSelection.isNull()) {
//.........这里部分代码省略.........

	void surface_manager::invalidate_surfaces()
	{
		for (auto& s : iSurfaces)
			s->invalidate_surface(rect(point{}, s->surface_size()), false);
	}

/**
 * Parse command line arguments
 *
 * @param argc Number of arguments in array argv
 * @param argv Arguments array
 *
 * @return true to continue with application launch; otherwise false
 */
bool parseArgs()
{
    QStringListIterator it(QCoreApplication::arguments());
    while (it.hasNext() == true)
    {
        QString arg(it.next());

        if ((arg == "-c" || arg == "--closebutton") && it.hasNext() == true)
        {
            QString str(it.next());
            QStringList parts = str.split(",");
            if (parts.size() == 4)
            {
                QRect rect(parts[0].toInt(), parts[1].toInt(),
                           parts[2].toInt(), parts[3].toInt());
                if (rect.isValid() == true)
                    QLCArgs::closeButtonRect = rect;
            }
        }
        else if (arg == "-d" || arg == "--debug")
        {
            if (it.hasNext() == true)
                QLCArgs::debugLevel = QtMsgType(it.peekNext().toInt());
            else
                QLCArgs::debugLevel = QtMsgType(0);
        }
        else if (arg == "-f" || arg == "--fullscreen")
        {
            QLCArgs::fullScreen = true;
            if (it.hasNext() == true && it.peekNext() == "resize")
                QLCArgs::fullScreenResize = true;
        }
        else if (arg == "-h" || arg == "--help")
        {
            printUsage();
            return false;
        }
        else if (arg == "-k" || arg == "--kiosk")
        {
            QLCArgs::kioskMode = true;
        }
        else if (arg == "-l" || arg == "--locale")
        {
            if (it.hasNext() == true)
                QLCi18n::setDefaultLocale(it.next());
        }
        else if (arg == "-o" || arg == "--open")
        {
            if (it.hasNext() == true)
                QLCArgs::workspace = it.next();
        }
        else if (arg == "-p" || arg == "--operate")
        {
            QLCArgs::operate = true;
        }
        else if (arg == "-v" || arg == "--version")
        {
            /* Don't print anything, since version is always
               printed before anything else. Just make the app
               exit by returning false. */
            return false;
        }
    }

    return true;
}

//.........这里部分代码省略.........

  BigImageIterator* bigImgIter = source->AsBigImageIterator();
  BigImageIterator* iterOnWhite = nullptr;
  if (bigImgIter) {
    bigImgIter->BeginBigImageIteration();
  }

  if (sourceOnWhite) {
    iterOnWhite = sourceOnWhite->AsBigImageIterator();
    MOZ_ASSERT(!bigImgIter || bigImgIter->GetTileCount() == iterOnWhite->GetTileCount(),
               "Tile count mismatch on component alpha texture");
    if (iterOnWhite) {
      iterOnWhite->BeginBigImageIteration();
    }
  }

  bool usingTiles = (bigImgIter && bigImgIter->GetTileCount() > 1);
  do {
    if (iterOnWhite) {
      MOZ_ASSERT(iterOnWhite->GetTileRect() == bigImgIter->GetTileRect(),
                 "component alpha textures should be the same size.");
    }

    nsIntRect texRect = bigImgIter ? bigImgIter->GetTileRect()
                                 : nsIntRect(0, 0,
                                             texSize.width,
                                             texSize.height);

    // Draw texture. If we're using tiles, we do repeating manually, as texture
    // repeat would cause each individual tile to repeat instead of the
    // compound texture as a whole. This involves drawing at most 4 sections,
    // 2 for each axis that has texture repeat.
    for (int y = 0; y < (usingTiles ? 2 : 1); y++) {
      for (int x = 0; x < (usingTiles ? 2 : 1); x++) {
        nsIntRect currentTileRect(texRect);
        currentTileRect.MoveBy(x * texSize.width, y * texSize.height);

        nsIntRegionRectIterator screenIter(screenRects);
        nsIntRegionRectIterator regionIter(regionRects);

        const nsIntRect* screenRect;
        const nsIntRect* regionRect;
        while ((screenRect = screenIter.Next()) &&
               (regionRect = regionIter.Next())) {
          nsIntRect tileScreenRect(*screenRect);
          nsIntRect tileRegionRect(*regionRect);

          // When we're using tiles, find the intersection between the tile
          // rect and this region rect. Tiling is then handled by the
          // outer for-loops and modifying the tile rect.
          if (usingTiles) {
            tileScreenRect.MoveBy(-origin);
            tileScreenRect = tileScreenRect.Intersect(currentTileRect);
            tileScreenRect.MoveBy(origin);

            if (tileScreenRect.IsEmpty())
              continue;

            tileRegionRect = regionRect->Intersect(currentTileRect);
            tileRegionRect.MoveBy(-currentTileRect.TopLeft());
          }
          gfx::Rect rect(tileScreenRect.x, tileScreenRect.y,
                         tileScreenRect.width, tileScreenRect.height);

          effect->mTextureCoords = Rect(Float(tileRegionRect.x) / texRect.width,
                                        Float(tileRegionRect.y) / texRect.height,
                                        Float(tileRegionRect.width) / texRect.width,
                                        Float(tileRegionRect.height) / texRect.height);
          GetCompositor()->DrawQuad(rect, aClipRect, aEffectChain, aOpacity, aTransform);
          if (usingTiles) {
            DiagnosticFlags diagnostics = DiagnosticFlags::CONTENT | DiagnosticFlags::BIGIMAGE;
            if (iterOnWhite) {
              diagnostics |= DiagnosticFlags::COMPONENT_ALPHA;
            }
            GetCompositor()->DrawDiagnostics(diagnostics, rect, aClipRect,
                                             aTransform, mFlashCounter);
          }
        }
      }
    }

    if (iterOnWhite) {
      iterOnWhite->NextTile();
    }
  } while (usingTiles && bigImgIter->NextTile());

  if (bigImgIter) {
    bigImgIter->EndBigImageIteration();
  }
  if (iterOnWhite) {
    iterOnWhite->EndBigImageIteration();
  }

  DiagnosticFlags diagnostics = DiagnosticFlags::CONTENT;
  if (iterOnWhite) {
    diagnostics |= DiagnosticFlags::COMPONENT_ALPHA;
  }
  GetCompositor()->DrawDiagnostics(diagnostics, *aVisibleRegion, aClipRect,
                                   aTransform, mFlashCounter);
}

void CSelectBox::DrawControl(CDC &dc, CRect rcUpdate)
{
	int nWidth = m_rc.Width();
	int nHeight = m_rc.Height();

	int nItemWidth = nWidth / m_nXCount;
	int nItemHeight = nHeight / m_nYCount;
	int nXPos = (nWidth - nItemWidth * m_nXCount) / 2;		
	int nYPos = (nHeight - nItemHeight * m_nYCount) / 2;

	if(!m_bUpdate)
	{
		UpdateMemDC(dc, nWidth, nHeight * 3);

		m_memDC.BitBlt(0, 0, nWidth, nHeight, &dc, m_rc.left ,m_rc.top, SRCCOPY);

		int nXPosTemp = nXPos;
		int nYPosTemp = nYPos;

		Graphics graphics(m_memDC);
		Pen pen(m_clrFrame, 1);

		for(int i = 0; i <= m_nYCount; i++)
		{
			graphics.DrawLine(&pen, nXPos, nYPosTemp, nXPos + nItemWidth * m_nXCount, nYPosTemp);
			nYPosTemp += nItemHeight;
		}

		for(int i = 0; i <= m_nXCount; i++)
		{
			graphics.DrawLine(&pen, nXPosTemp, nYPos, nXPosTemp, nYPos + nItemHeight * m_nYCount);
			nXPosTemp += nItemWidth;
		}

		if(m_bImage)
		{
			for(size_t i = 0; i < m_vecpImage.size(); i++)
			{
				if(m_vecpImage[i] != NULL)
				{
					graphics.DrawImage(m_vecpImage[i], Rect(nXPos + nItemWidth * (i % m_nXCount) + 1, nYPos + nItemHeight * (i / m_nXCount) + 1, nItemWidth - 1, nItemHeight - 1), 
						0, 0, m_vecsizeImage[i].cx, m_vecsizeImage[i].cy, UnitPixel);
				}
			}
		}
		else
		{
			for(size_t i = 0; i < m_vecclr.size(); i++)
			{
				SolidBrush brush(m_vecclr[i]);
				graphics.FillRectangle(&brush, nXPos + nItemWidth * (i % m_nXCount) + 1, nYPos + nItemHeight * (i / m_nXCount) + 1, nItemWidth - 1, nItemHeight - 1);
			}
		}

		m_memDC.BitBlt(0, nHeight, nWidth, nHeight, &m_memDC, 0, 0, SRCCOPY);
		m_memDC.BitBlt(0, nHeight * 2, nWidth, nHeight, &m_memDC, 0, 0, SRCCOPY);

		//选择
		SolidBrush brush(m_clrHover);
		nYPosTemp = nYPos + nHeight;
		if(m_bImage)
		{
			for(size_t i = 0; i < m_vecpImage.size(); i++)
			{			
				graphics.FillRectangle(&brush, nXPos + nItemWidth * (i % m_nXCount) + 1, nYPosTemp + nItemHeight * (i / m_nXCount) + 1, nItemWidth - 1, nItemHeight - 1);
			}
		}
		else
		{
			for(size_t i = 0; i < m_vecclr.size(); i++)
			{			
				graphics.FillRectangle(&brush, nXPos + nItemWidth * (i % m_nXCount) + 1, nYPosTemp + nItemHeight * (i / m_nXCount) + 1, nItemWidth - 1, nItemHeight - 1);
			}
		}

		int nLineWidth = m_bImage ? 2 : 1;
		//选中
		pen.SetColor(m_clrSelect);
		pen.SetWidth((Gdiplus::REAL)nLineWidth);

		nYPosTemp = nYPos + nHeight * 2;
		for(int i = 0; i < m_nYCount; i++)
		{
			nXPosTemp = nXPos;
			for(int j = 0; j < m_nXCount; j++)
			{				
				Rect rect(nXPosTemp + nLineWidth, nYPosTemp + nLineWidth, nItemWidth - 1 - nLineWidth, nItemHeight - 1 - nLineWidth);

				//绘制矩形
				graphics.DrawRectangles(&pen, &rect, 1);
				nXPosTemp += nItemWidth;
			}
			nYPosTemp += nItemHeight;
		}
	}

	dc.BitBlt(m_rc.left,m_rc.top, m_rc.Width()+1, m_rc.Height()+1, &m_memDC, 0, 0, SRCCOPY);

	if(m_nXSelect != -1 && m_nYSelect != -1)
	{
//.........这里部分代码省略.........

IntRect Font::findGlyphRect(Page& page, unsigned int width, unsigned int height) const
{
    // Find the line that fits well the glyph
    Row* row = NULL;
    float bestRatio = 0;
    for (std::vector<Row>::iterator it = page.rows.begin(); it != page.rows.end() && !row; ++it)
    {
        float ratio = static_cast<float>(height) / it->height;

        // Ignore rows that are either too small or too high
        if ((ratio < 0.7f) || (ratio > 1.f))
            continue;

        // Check if there's enough horizontal space left in the row
        if (width > page.texture.getSize().x - it->width)
            continue;

        // Make sure that this new row is the best found so far
        if (ratio < bestRatio)
            continue;

        // The current row passed all the tests: we can select it
        row = &*it;
        bestRatio = ratio;
    }

    // If we didn't find a matching row, create a new one (10% taller than the glyph)
    if (!row)
    {
        int rowHeight = height + height / 10;
        while ((page.nextRow + rowHeight >= page.texture.getSize().y) || (width >= page.texture.getSize().x))
        {
            // Not enough space: resize the texture if possible
            unsigned int textureWidth  = page.texture.getSize().x;
            unsigned int textureHeight = page.texture.getSize().y;
            if ((textureWidth * 2 <= Texture::getMaximumSize()) && (textureHeight * 2 <= Texture::getMaximumSize()))
            {
                // Make the texture 2 times bigger
                Image newImage;
                newImage.create(textureWidth * 2, textureHeight * 2, Color(255, 255, 255, 0));
                newImage.copy(page.texture.copyToImage(), 0, 0);
                page.texture.loadFromImage(newImage);
            }
            else
            {
                // Oops, we've reached the maximum texture size...
                err() << "Failed to add a new character to the font: the maximum texture size has been reached" << std::endl;
                return IntRect(0, 0, 2, 2);
            }
        }

        // We can now create the new row
        page.rows.push_back(Row(page.nextRow, rowHeight));
        page.nextRow += rowHeight;
        row = &page.rows.back();
    }

    // Find the glyph's rectangle on the selected row
    IntRect rect(row->width, row->top, width, height);

    // Update the row informations
    row->width += width;

    return rect;
}

QVariant QSRectClass::toVariant(const QSObject *obj, QVariant::Type) const
{
  return *rect(obj);
}