C++ drawItem函数代码示例

void ProcessorList::drawItems(Graphics& g)
{
    totalHeight = yBuffer;

    category = baseItem->getName();

    drawItem(g, baseItem);

    if (baseItem->isOpen())
    {
        for (int n = 0; n < baseItem->getNumSubItems(); n++)
        {
            setViewport(g, baseItem->hasSubItems());
            category = baseItem->getSubItem(n)->getName();
            drawItem(g, baseItem->getSubItem(n));

            if (baseItem->getSubItem(n)->isOpen())
            {
                for (int m = 0; m < baseItem->getSubItem(n)->getNumSubItems(); m++)
                {

                    setViewport(g, baseItem->
                                getSubItem(n)->
                                getSubItem(m)->
                                hasSubItems());
                    drawItem(g, baseItem->getSubItem(n)->getSubItem(m));

                }
            }
        }
    }

}

void Canvas::draw(QPainter& p, const QRect& rect)/*{{{*/
{
	//      printf("draw canvas %x virt %d\n", this, virt());

	int x = rect.x();
	int y = rect.y();
	int w = rect.width();
	int h = rect.height();
	int x2 = x + w;

	if (virt())
	{
		//printf("If virt() code running\n");
		drawCanvas(p, rect);

		//---------------------------------------------------
		// draw Canvas Items
		//---------------------------------------------------

		iCItem to(_items.lower_bound(x2));

		// Draw items from other parts behind all others.
		// Only for items with events (not Composer parts).
		QList<CItem*> sortedByZValue;

		// Draw items from other parts behind all others.
		// Only for items with events (not Composer parts).
		for (iCItem i = _items.begin(); i != to; ++i)
		{
			sortedByZValue.append(i->second);
		}
		PartZIndex = m_PartZIndex;

		qSort(sortedByZValue.begin(), sortedByZValue.end(), Canvas::smallerZValue);

		foreach(CItem* ci, sortedByZValue)
		{
			if (!ci->event().empty() && ci->part() != _curPart)
			{
				drawItem(p, ci, rect);
			}
			else if (!ci->isMoving() && (ci->event().empty() || ci->part() == _curPart))
			{
				drawItem(p, ci, rect);
			}
		}
		to = _moving.lower_bound(x2);
		for (iCItem i = _moving.begin(); i != to; ++i)
		{
			drawItem(p, i->second, rect);
		}

		drawTopItem(p,rect);
	}
	else
	{

Boolean DrawHandler::draw(IListBoxDrawItemEvent& event, DrawFlag& flag)
{
  if(event.isSelected())
  {
    flag = drewSelected;
    return drawItem(event, true);
  }
    else
      return drawItem(event, false);
}

static void onDraw(tContext *pContext)
{
  char buf[30];
  GrContextForegroundSet(pContext, ClrBlack);
#if defined(PRODUCT_W002) || defined(PRODUCT_W004)
	GrRectFill(pContext, &client_clip);
#else  
  GrRectFill(pContext, &fullscreen_clip);
#endif
  GrContextForegroundSet(pContext, ClrWhite);

  if (state == WALK)
  {
#if defined(PRODUCT_W002) || defined(PRODUCT_W004)
    sprintf(buf, "%d", ped_get_steps());
    drawItem(pContext, 0, ICON_STEPS, "Step Taken", buf);
    
    sprintf(buf, "%02d:%02d", ped_get_time() / 60, ped_get_time() % 60);
    drawItem(pContext, 1, ICON_TIME, "Walk Time", buf);

    uint16_t cals = ped_get_calorie() / 100 / 1000;
    sprintf(buf, "%d", cals);
    drawItem(pContext, 2, ICON_CALORIES, "Calories", buf);
    
    uint16_t dist = ped_get_distance() / 100;
    sprintf(buf, "%dm", dist);
    drawItem(pContext, 3, ICON_DISTANCE, "Distance", buf);    
    
#else  	
    sprintf(buf, "%d", ped_get_steps());
    drawItem(pContext, 0, ICON_STEPS, "Steps", buf);

    uint16_t cals = ped_get_calorie() / 100 / 1000;
    sprintf(buf, "%d", cals);
    drawItem(pContext, 1, ICON_CALORIES, "Calories", buf);

    uint16_t dist = ped_get_distance() / 100;
    sprintf(buf, "%dm", dist);
    drawItem(pContext, 2, ICON_DISTANCE, "Distance", buf);

    sprintf(buf, "%02d:%02d", ped_get_time() / 60, ped_get_time() % 60);
    drawItem(pContext, 3, ICON_TIME, "Active", buf);
#endif
    // draw progress
#if defined(PRODUCT_W002) || defined(PRODUCT_W004)
#else
    uint16_t goal = window_readconfig()->goal_steps;
    uint32_t steps = ped_get_steps();

    if (steps < goal)
      window_progress(pContext, 5 + 4 * LINEMARGIN, steps * 100 / goal);
    else
      window_progress(pContext, 5 + 4 * LINEMARGIN, 100);
    sprintf(buf, "%d%% of %d", (uint16_t)(steps * 100 / goal), goal);
    GrContextForegroundSet(pContext, ClrWhite);
    GrStringDrawCentered(pContext, buf, -1, LCD_WIDTH/2, 148, 0);
#endif    
  }
}

void GUIListGadget::draw()
{
    if (!isVisible_ || isValidated_ || !setupClipping())
        return;
    
    GlbRenderSys->draw2DRectangle(Rect_, Color_);
    
    /* Draw all item entries */
    s32 ItemPos = 0;
    for (std::list<GUIListItem*>::iterator it = ItemList_.begin(); it != ItemList_.end(); ++it)
    {
        drawItem(*it, ItemPos);
        ItemPos += (*it)->getItemSize();
    }
    
    /* Draw all column entries */
    s32 ColumnPos = 0;
    for (std::list<GUIListColumn*>::iterator it = ColumnList_.begin(); it != ColumnList_.end(); ++it)
    {
        drawColumn(*it, ColumnPos);
        ColumnPos += (*it)->getColumnSize();
    }
    
    /* Update scrollbar ranges */
    HorzScroll_.setRange(ColumnPos);
    VertScroll_.setRange(ItemPos + COLUMN_HEIGHT);
    
    drawChildren();
    
    GlbRenderSys->setClipping(true, dim::point2di(VisRect_.Left, VisRect_.Top), VisRect_.getSize());
    
    drawFrame(Rect_, 0, false);
}

void ChannelItemDelegate::paintChannel(QPainter* painter,
                                        const QStyleOptionViewItem& option,
                                        const QModelIndex& index) const {
    YTChannel *channel = index.data(ChannelModel::DataObjectRole).value<YTChannelPointer>().data();
    if (!channel) return;

    painter->save();

    painter->translate(option.rect.topLeft());
    const QRect line(0, 0, option.rect.width(), option.rect.height());

    // const bool isActive = index.data( ActiveItemRole ).toBool();
    // const bool isHovered = index.data(ChannelsModel::HoveredItemRole ).toBool();
    // const bool isSelected = option.state & QStyle::State_Selected;

    QPixmap thumbnail = channel->getThumbnail();
    if (thumbnail.isNull()) {
        channel->loadThumbnail();
        painter->restore();
        return;
    }

    QString name = channel->getDisplayName();
    drawItem(painter, line, thumbnail, name);

    int notifyCount = channel->getNotifyCount();
    if (notifyCount > 0)
        paintBadge(painter, line, QString::number(notifyCount));

    painter->restore();
}

void ItemRenderSystem::drawItem(SDL_Surface *display, GameObject item)
{

  EntityManager &em = EntityManager::instance();
  SpaceComponent *sc = em.getComponentForEntity<SpaceComponent>(item);
  if (!sc || !sc->is_active) {
    return;
  }
  bool explored = CArea::area_control.GetTile(
      sc->pos.x * TILE_SIZE, sc->pos.y * TILE_SIZE)->is_explored;
  if (!explored && CArea::area_control.GetMap(0,0)->fow_on) {
    return; //dont render if not visible
  }

  ItemComponent *ic = em.getComponentForEntity<ItemComponent>(item);
  if (ic->useType == ItemComponent::USE_TYPE_TRAP) {
    TrapComponent *trap = em.getComponentForEntity<TrapComponent>(item);
    if (!trap->is_visible) {
      return; // don't render invisible traps
    }
  }

  drawItem(display, ic,
      sc->pos.x * TILE_SIZE - CCamera::camera_control.GetX(),
      sc->pos.y * TILE_SIZE - CCamera::camera_control.GetY());
}

void
xQGanttBarViewPort::update(int x1, int y1, int x2, int y2)
//////////////////////////////////////////////////////////
{
    QPainter p(this);

    // QTime time1 = QTime::currentTime();

    if(_drawGrid)
        drawGrid(&p, x1, y1, x2, y2);

    // QTime time2 = QTime::currentTime();
    // printf("%d msec for drawing grid.\n", time1.msecsTo( time2 ) );

    // drawContents(&p, x1, y1, x2, y2);
    drawItem(_toplevelitem, &p, QRect(x1, y1, x2 - x1, y2 - y1));

    // time1 = QTime::currentTime();
    // printf("%d msec for drawing contents.\n", time2.msecsTo( time1 ) );

    if(_drawHeader)
        drawHeader(&p, x1, y1, x2, y2);

    // time2 = QTime::currentTime();<
    // printf("%d msec for drawing header.\n", time1.msecsTo( time2 ) );

}

void AssetDecodePopup::paintEvent(QPaintEvent *)
{
    QStyleOption opt;
    opt.init(this);
    QPainter p(this);
    //style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
    itemMutex.lock();

    QBrush brush;
    brush.setColor(QColor(51, 51, 51));
    brush.setStyle(Qt::BrushStyle::SolidPattern);
    p.fillRect(0, 0, width(), height(), brush);
    
    QPen pen;
    pen.setColor(QColor(41, 41, 41));
    p.setPen(pen);
    p.drawRect(0, 0, width()-1, height()-1);

    
    int yPos = 2;
    for (const auto& item : m_items)
    {
        drawItem(item.displayFilename, item.status, QRect(2, yPos, width() - 5, SingleItemHeight), item.progress);
        yPos += SingleItemHeight;
    }
    itemMutex.unlock();
}

/*
 * Rename a folder or an item
 */
void CNOutBarCtrl::renameUI()
{
	onEditCanceled();
	
	int obj = HITOBJ(lastHit);
	int i = HITINDEX(lastHit);
	DWORD flags = WS_VISIBLE | WS_CHILD | ES_CENTER;
	const char *text = "";

	editCtrl = new CNOutBarEdit(this, obj, i);

	if (obj == HT_FOLDER) {
		text = folders[i]->text;
		editCtrl->Create(flags, CRect(0, 0, 0, 0), this, 1);
		editCtrl->ModifyStyleEx(0, WS_EX_CLIENTEDGE, SWP_FRAMECHANGED);

	} else if (obj == HT_ITEM) {
		CClientDC dc(this);
		drawItem(&dc, i, TRUE);

		text = folders[selFolder]->items[i]->text;
		editCtrl->Create(flags | WS_BORDER, CRect(0, 0, 0, 0), this, 1);
	}

	editCtrl->SetFont(CFont::FromHandle((HFONT) GetStockObject(DEFAULT_GUI_FONT)));
	editCtrl->SetWindowText(text);
	editCtrl->SetFocus();
	editCtrl->SetSel(0, -1);
	resizeEditCtrl();
}

void PopupMenuEditor::drawItems( QPainter * p )
{
    int flags = 0;
    int idx = 0;

    QColorGroup enabled = colorGroup();
    QColorGroup disabled = palette().disabled();
    QRect focus;
    QRect rect( borderSize, borderSize, width() - borderSize * 2, 0 );

    PopupMenuEditorItem * i = itemList.first();
    while ( i ) {
	if ( i->isVisible() ) {
	    rect.setHeight( itemHeight( i ) );
	    if ( idx == currentIndex )
		focus = rect;
	    if ( i->action()->isEnabled() ) {
		flags = QStyle::Style_Enabled;
		p->setPen( enabled.buttonText() );
	    } else {
		flags = QStyle::Style_Default;
		p->setPen( disabled.buttonText() );
	    }
	    drawItem( p, i, rect, flags );
	    rect.moveBy( 0, rect.height() );
	}
	i = itemList.next();
	idx++;
    }

    // Draw the "add item" and "add separator" items
    p->setPen( darkBlue );
    rect.setHeight( itemHeight( &addItem ) );
    if ( idx == currentIndex )
	focus = rect;
    drawItem( p, &addItem, rect, QStyle::Style_Default );
    rect.moveBy( 0, rect.height() );
    idx++;
    rect.setHeight( itemHeight( &addSeparator ) );
    if ( idx == currentIndex )
	focus = rect;
    drawItem( p, &addSeparator, rect, QStyle::Style_Default );
    idx++;

    if ( hasFocus() && !draggedItem )
	drawWinFocusRect( p, focus );
}

/*!
    \internal
    This replaces the standard draw() as used in Item3D.  In this instance all drawing
    carried out using \a painter follows the standard sequence.  However, after the
    transforms for the item have been applied, a QGraphicsBillboardTransform is applied
    to the model-view matrix.

    After the current item is drawn the model-view matrix from immediately before the
    billboard transform being applied will be restored so child items are not affected by it.
*/
void BillboardItem3D::draw(QGLPainter *painter)
{
    // Bail out if this item and its children have been disabled.
    if (!isEnabled())
        return;
    if (!isInitialized())
        initialize(painter);

    if (!m_bConnectedToOpenGLContextSignal) {
        QOpenGLContext* pOpenGLContext = QOpenGLContext::currentContext();
        if (pOpenGLContext) {
            bool Ok = QObject::connect(pOpenGLContext, SIGNAL(aboutToBeDestroyed()), this, SLOT(handleOpenglContextIsAboutToBeDestroyed()), Qt::DirectConnection);
            Q_UNUSED(Ok);  // quell compiler warning
            Q_ASSERT(Ok);
            m_bConnectedToOpenGLContextSignal = true;
        }
    }

    //Setup picking
    int prevId = painter->objectPickId();
    painter->setObjectPickId(objectPickId());

    //Setup effect (lighting, culling, effects etc)
    const QGLLightParameters *currentLight = 0;
    QMatrix4x4 currentLightTransform;
    drawLightingSetup(painter, currentLight, currentLightTransform);
    bool viewportBlend, effectBlend;
    drawEffectSetup(painter, viewportBlend, effectBlend);
    drawCullSetup();

    //Local and Global transforms
    drawTransformSetup(painter);

    //After all of the other transforms, apply the billboard transform to
    //ensure forward facing.
    painter->modelViewMatrix().push();
    QGraphicsBillboardTransform bill;
    bill.setPreserveUpVector(m_preserveUpVector);
    bill.applyTo(const_cast<QMatrix4x4 *>(&painter->modelViewMatrix().top()));

    //Drawing
    drawItem(painter);

    //Pop the billboard transform from the model-view matrix stack so that it
    //is not applied to child items.
    painter->modelViewMatrix().pop();

    //Draw children
    drawChildren(painter);

    //Cleanup
    drawTransformCleanup(painter);
    drawLightingCleanup(painter, currentLight, currentLightTransform);
    drawEffectCleanup(painter, viewportBlend, effectBlend);
    drawCullCleanup();

    //Reset pick id.
    painter->setObjectPickId(prevId);
}

void MenuSystem::scrollSavegames(int delta) {
	int newPos = CLIP<int>(_savegameListTopIndex + delta, 0, _savegames.size() - 1);
	_savegameListTopIndex = newPos;
	restoreRect(80, 92, 440, 140);
	setSavegameCaptions();
	for (int i = 1; i <= 7; i++)
		drawItem((ItemID)(kItemIdSavegame1 + i - 1), false);
}

void drawDestinationItems()
{
	int			i;
	
	for (i = 0; i < numBItems; i++)
		drawItem( bItem[i].rect.left, bItem[i].rect.top, &bItem[i].label,
					true, settings.bItem == i + 1 );
}

void scrollMenu(MenuItem* itms, Adafruit_ST7735* tft, uint8_t curPos, uint8_t newPos){ 
  MenuItem curItm = itms[curPos], newItm = itms[newPos];
  tft->fillRect(0, curItm.position * MENU_SCALE, 128, MENU_SCALE, 0); 
  drawItem(&curItm, tft);

  tft->fillRect(0, newItm.position * MENU_SCALE, 128, MENU_SCALE, MENU_HIGHLIGHTED);
  tft->setCursor(0, newItm.position * MENU_SCALE+MENU_SCALE/4);
  tft->print(newItm.name);
}