C++ setView函数代码示例

//Because views are positioned by their center, I have to do funky math
void Window::scroll(sf::Keyboard::Key code)
{
    //get the current position of the view
    sf::Vector2f viewPos = view.getCenter();
    //get the size of the viewport
    sf::Vector2f viewSize = view.getSize();

    switch(code)
    {
        //Move the view around
        case sf::Keyboard::Up:  //Move up
            //consider x's at the top of the screen,
            //we want to keep from pushing any part of the view off the world
            //subtract half the screen to the x and y positions in the
            //center of the screen
            //we subtract because screen coords start with 0-y at the top
            viewPos.y -= viewSize.y/2;
            if(isOnMap((viewPos.x)/32, (viewPos.y-32)/32))
            {
                view.move(0, -32);
                setView(view);
            }
            break;
        case sf::Keyboard::Right:   //Move right
            viewPos.x += viewSize.x/2;
            if(isOnMap((viewPos.x+32)/32, (viewPos.y)/32))
            {
                view.move(32, 0);
                setView(view);
            }
            break;
        case sf::Keyboard::Down:    //Move down
            viewPos.y += viewSize.y/2;
            if(isOnMap((viewPos.x)/32, (viewPos.y+32)/32))
            {
                view.move(0, 32);
                setView(view);
            }
            break;
        case sf::Keyboard::Left:    //move left
            viewPos.x -= viewSize.x/2;
            if(isOnMap((viewPos.x-32)/32, (viewPos.y)/32))
            {
                view.move(-32, 0);
                setView(view);
            }
            break;
        default:
            break;

    }
}

    void QmlMapControl::touchEvent(QTouchEvent *evnt)
    {
        const QList<QTouchEvent::TouchPoint> & touchs = evnt->touchPoints();
        if( touchs.count() != 2 )
        {
            QQuickPaintedItem::touchEvent(evnt);
        }
        else
        {
            evnt->accept();

            const QTouchEvent::TouchPoint & t0 = touchs.first();
            const QTouchEvent::TouchPoint & t1 = touchs.last();

            if( last_t0_startPos.isNull() )
                last_t0_startPos = t0.startPos();
            if( last_t1_startPos.isNull() )
                last_t1_startPos = t1.startPos();

            qreal startW = qPow( qPow(last_t0_startPos.x()-last_t1_startPos.x(),2)+qPow(last_t0_startPos.y()-last_t1_startPos.y(),2), 0.5 );
            qreal endW = qPow( qPow(t0.pos().x()-t1.pos().x(),2)+qPow(t0.pos().y()-t1.pos().y(),2), 0.5 );

            if( startW*4/3<endW )
            {
                QPoint pnt( last_t0_startPos.x()/2+last_t1_startPos.x()/2, last_t0_startPos.y()/2+last_t1_startPos.y()/2 );
                QPoint newPoint( width()-pnt.x(), height()-pnt.y() );

                setView(clickToWorldCoordinate(pnt));
                zoomIn(pnt);
                setView(clickToWorldCoordinate(newPoint));

                last_t0_startPos = t0.pos();
                last_t1_startPos = t1.pos();
            }
            else
            if( startW*3/4>endW )
            {
                QPoint pnt( t0.pos().x()/2+t1.pos().x()/2, t0.pos().y()/2+t1.pos().y()/2 );
                QPoint newPoint( width()-pnt.x(), height()-pnt.y() );

                setView(clickToWorldCoordinate(pnt));
                zoomOut(pnt);
                setView(clickToWorldCoordinate(newPoint));

                last_t0_startPos = t0.pos();
                last_t1_startPos = t1.pos();
            }
        }
    }

void keyboard( unsigned char key, int x, int y )
{
    switch( key )
    {
        case 'i':
        case 'I':
            cameraR -= 0.5;
            if( cameraR < 0.5 )
            {
                cameraR = 0.5;
            }
            break;
        case 'o':
        case 'O':
            cameraR += 0.5;
            break;
            
        case 'a':
        case 'A':
            --lookAt.z;
            break;
        case 's':
        case 'S':
            ++lookAt.z;
            break;
            
        case 'r':
        case 'R':
            rebuildTree();
            sendData();
            setView();
            break;
            
        case 'w':
        case 'W':
            wireFrame = !wireFrame;
            glPolygonMode( GL_FRONT_AND_BACK, wireFrame ? GL_LINE : GL_FILL );
            break;
            
        case 033:  // ESC
        case 'q':
        case 'Q':
            exit( EXIT_SUCCESS );
    }
    
    setView();
    glutPostRedisplay();
}

Player::Player(TileMapLand* land)
    : Entity()
    , hitEnemy(false)
    , m_sprite_view(new AnimatedSpriteView(*this,"Animation/player.txt"))
    , m_plateforme_physics(new PlateformerPhysic(*this,land))
{
    name =  "Player";

    setBody(new Body(*this));
    body()->setSize(sf::Vector2f(16,16));
    body()->setOrigin(sf::Vector2f(8,8));
    body()->setPosition(sf::Vector2f(38,38));

    setPhysics(m_plateforme_physics);
    m_plateforme_physics->gravity = sf::Vector2f(0,0.3);
    m_plateforme_physics->max_speed = sf::Vector2f(2.0,8.0);
    m_plateforme_physics->jump_power = 8.0;
    m_plateforme_physics->walk_speed = 2.0;
    m_plateforme_physics->run_speed  = 3.0;
    m_plateforme_physics->walk_deceleration = 0.3;


    setGamepad(new KeyBoardGamePad(*this));

    setView(m_sprite_view);

}

void MainWindow::openBS()
{
    QString path = QFileDialog::getOpenFileName( this, tr("Open File"), "D:\\Project\\Qt_Creator\\DataBase_0.6", tr("*.sqlite") );

    if( path != "" )
    {
        closeBS();

        base = QSqlDatabase::addDatabase("QSQLITE");

        base.setDatabaseName(path);

        if( base.open() )
            qDebug() << "Open successful";
        else
        {
            qDebug() << "Open falied";
            return;
        }

        model = new SqlTableModel;
        model->setTable("my_table");
        model->select();
        model->setEditStrategy(QSqlTableModel::OnFieldChange);

        setView();

        this->setWindowTitle(path);
    }
}

VNotebookSelector::VNotebookSelector(QWidget *p_parent)
    : QComboBox(p_parent),
      VNavigationMode(),
      m_notebooks(g_vnote->getNotebooks()),
      m_lastValidIndex(-1),
      m_muted(false),
      m_naviLabel(NULL)
{
    m_listWidget = new QListWidget(this);
    m_listWidget->setItemDelegate(new VNoFocusItemDelegate(this));
    m_listWidget->setContextMenuPolicy(Qt::CustomContextMenu);
    connect(m_listWidget, &QListWidget::customContextMenuRequested,
            this, &VNotebookSelector::popupListContextMenuRequested);

    setModel(m_listWidget->model());
    setView(m_listWidget);

    m_listWidget->viewport()->installEventFilter(this);
    m_listWidget->installEventFilter(this);

    initActions();

    connect(this, SIGNAL(currentIndexChanged(int)),
            this, SLOT(handleCurIndexChanged(int)));
}

void AP_Win32Dialog_Styles::runModal(XAP_Frame * pFrame)
{
	UT_return_if_fail (pFrame);
//
// Get View and Document pointers. Place them in member variables
//
	setFrame(pFrame);

	setView((FV_View *) pFrame->getCurrentView());
	UT_return_if_fail (getView());

	setDoc(getView()->getLayout()->getDocument());
	UT_return_if_fail (getDoc());


	// raise the dialog
	_win32Dialog.runModal(pFrame, AP_DIALOG_ID_STYLES, AP_RID_DIALOG_STYLES_TOP, this);
	
	
	if (m_answer == AP_Dialog_Styles::a_OK)
	{
		const char* szStyle = getCurrentStyle();
		if (szStyle)
		{
			getDoc()->updateDocForStyleChange(szStyle, true);
			getView()->getCurrentBlock()->setNeedsRedraw();
			getDoc()->signalListeners(PD_SIGNAL_UPDATE_LAYOUT);
		}
	}

}

ActionComboBoxWidget::ActionComboBoxWidget(QWidget *parent) : QComboBox(parent),
	m_view(new ItemViewWidget(this)),
	m_filterLineEdit(NULL),
	m_wasPopupVisible(false)
{
	setEditable(true);
	setView(m_view);
	setItemDelegate(new ItemDelegate(this));

	m_view->setHeaderHidden(true);

	lineEdit()->hide();

	view()->viewport()->parentWidget()->installEventFilter(this);

	QStandardItemModel *model = new QStandardItemModel(this);
	const QVector<ActionDefinition> definitions = ActionsManager::getActionDefinitions();

	for (int i = 0; i < definitions.count(); ++i)
	{
		QStandardItem *item = new QStandardItem(definitions.at(i).icon, QCoreApplication::translate("actions", (definitions.at(i).description.isEmpty() ? definitions.at(i).text : definitions.at(i).description).toUtf8().constData()));
		item->setData(definitions.at(i).identifier, Qt::UserRole);
		item->setToolTip(ActionsManager::getActionName(definitions.at(i).identifier));
		item->setFlags(item->flags() | Qt::ItemNeverHasChildren);

		model->appendRow(item);
	}

	setModel(model);
	setCurrentIndex(-1);
}

TileView::TileView(const std::list<std::string> & columns, IDelegateFactory * delegateFactory, QWidget * parent)
	: CompositeListView(parent), m_listview(0), m_sorter(0)
{
	if (! delegateFactory)
		throw std::runtime_error("TileView requires a Custom Tile Delegate");

	m_listview = new QListView(this);
	m_listview->setUniformItemSizes(true);
	m_listview->setItemDelegate(delegateFactory->create());
	m_listview->setResizeMode(QListView::Adjust);
	m_listview->setSelectionBehavior(QAbstractItemView::SelectRows);
	m_listview->setSelectionMode(QAbstractItemView::ExtendedSelection);
	m_listview->setSpacing(16);
	m_listview->setViewMode(QListView::IconMode);

	setView(m_listview);

	m_sorter = new TileViewSorter(columns, this);
	connect(m_sorter, SIGNAL(sortChanged(int, Qt::SortOrder)), this, SLOT(onSortChanged(int, Qt::SortOrder)));

	QVBoxLayout * vbox = new QVBoxLayout;
	vbox->setContentsMargins(0, 0, 0, 0);
	vbox->setSpacing(0);
	vbox->addWidget(m_listview);
	vbox->addWidget(m_sorter);

	setLayout(vbox);
}

void QgsDualView::setMultiEditEnabled( bool enabled )
{
  if ( enabled )
    setView( AttributeEditor );

  mAttributeForm->setMode( enabled ? QgsAttributeEditorContext::MultiEditMode : QgsAttributeEditorContext::SingleEditMode );
}

void setupData()
{
    // build tree
    rebuildTree();

    // matrices
    setView();
    
    // create shader program
    GLuint sProgram = InitShader( "vert.glsl", "frag.glsl" );
    
    // object buffer
    glGenBuffers( 1, &objectBuffer );
    glBindBuffer( GL_ARRAY_BUFFER, objectBuffer );
    
    // vertices
    vertLoc = glGetAttribLocation( sProgram, "a_vPosition" );

    // indices
    glGenBuffers( 1, &indexBuffer );
    glBindBuffer( GL_ELEMENT_ARRAY_BUFFER, indexBuffer );

    // texture coordinates
    //texCoordLoc = glGetAttribLocation( sProgram, "a_vTexCoord" );
    
    // normals
    normalLoc = glGetAttribLocation( sProgram, "a_vNormal" );
    
    // buffer to GPU
    sendData();
}

void mouseMove( int x, int y )
{
    int dx = mouseX - x;
    int dy = y - mouseY;
    
    thetaXY += dx / static_cast<float>( windowW / 2 );
    thetaZ += dy / static_cast<float>( windowH / 2 );

    if( thetaXY >= 2.0 * M_PI )
    {
        thetaXY -= 2.0 * M_PI;
    }
    else if( thetaXY < 0.0 )
    {
        thetaXY += 2.0 * M_PI;
    }
    if( thetaZ < -0.5 * M_PI + 0.01 )
    {
        thetaZ = -0.5 * M_PI + 0.01;
    }
    else if( thetaZ > 0.5 * M_PI - 0.01 )
    {
        thetaZ = 0.5 * M_PI - 0.01;
    }

    setView();
    
    mouseX = x;
    mouseY = y;
    
    glutPostRedisplay();
}

Ti::TiView *Ti::TiViewProxy::getView()
{
	if(view == NULL) {
		setView(new Ti::TiView(this));
	}
	return view;
}

void LocalFrame::createView(const IntSize& viewportSize, const Color& backgroundColor, bool transparent)
{
    ASSERT(this);

    setView(nullptr);

    RefPtr<FrameView> frameView;
    frameView = FrameView::create(this, viewportSize);

    // The layout size is set by WebViewImpl to support @viewport
    frameView->setLayoutSizeFixedToFrameSize(false);

    setView(frameView);

    frameView->updateBackgroundRecursively(backgroundColor, transparent);
}

TiUIWebViewProxy::TiUIWebViewProxy(const char* name) : Ti::TiViewProxy(name)
{
	createPropertySetterGetter("data", _setData,  _getData);
	createPropertySetterGetter("disableBounce", _setDisableBounce,  _getDisableBounce);
	createPropertySetterGetter("hideLoadIndicator", _setHideLoadIndicator,  _getHideLoadIndicator);
	createPropertySetterGetter("html", _setHtml,  _getHtml);
	createPropertySetterGetter("ignoreSslError", _setIgnoreSslError,  _getIgnoreSslError);
	createPropertySetterGetter("loading", _setLoading,  _getLoading);
	createPropertySetterGetter("overScrollMode", _setOverScrollMode,  _getOverScrollMode);
	createPropertySetterGetter("pluginState", _setPluginState,  _getPluginState);
	createPropertySetterGetter("scrollsToTop", _setScrollsToTop,  _getScrollsToTop);
	createPropertySetterGetter("showScrollbars", _setShowScrollbars,  _getShowScrollbars);
	createPropertySetterGetter("enableZoomControls", _setEnableZoomControls,  _getEnableZoomControls);
	createPropertySetterGetter("scalesPageToFit", _setScalesPageToFit,  _getScalesPageToFit);
	createPropertySetterGetter("url", _setUrl,  _getUrl);
	createPropertySetterGetter("userAgent", _setUserAgent,  _getUserAgent);
	createPropertySetterGetter("willHandleTouches", _setWillHandleTouches,  _getWillHandleTouches);

	createPropertyFunction("canGoBack", _canGoBack);
	createPropertyFunction("canGoForward", _canGoForward);
	createPropertyFunction("evalJS", _evalJS);
	createPropertyFunction("goBack", _goBack);
	createPropertyFunction("goForward", _goForward);
	createPropertyFunction("pause", _pause);
	createPropertyFunction("reload", _reload);
	createPropertyFunction("repaint", _repaint);
	createPropertyFunction("release", _release);
	createPropertyFunction("resume", _resume);
	createPropertyFunction("setBasicAuthentication", _setBasicAuthentication);
	createPropertyFunction("stopLoading", _stopLoading);

	_tiWebView = new UIWebView(this);
	setView(_tiWebView);
	webViews_.append(this);
}