C++ (Cpp) MapView::centerOn示例

void DocumentManager::centerViewOn(qreal x, qreal y)
{
    MapView *view = currentMapView();
    if (!view)
        return;

    view->centerOn(currentDocument()->renderer()->tileToPixelCoords(x, y));
}

示例#2

显示文件

文件： documentmanager.cpp 项目： Alex-Jenkins/tiled

void DocumentManager::addDocument(MapDocument *mapDocument)
{
    Q_ASSERT(mapDocument);
    Q_ASSERT(!mDocuments.contains(mapDocument));

    mDocuments.append(mapDocument);
    mUndoGroup->addStack(mapDocument->undoStack());

    MapView *view = new MapView(mTabWidget);
    MapScene *scene = new MapScene(view); // scene is owned by the view

    scene->setMapDocument(mapDocument);
    view->setScene(scene);
    view->centerOn(mapDocument->renderer()->tileToPixelCoords(0, 0));

    const int documentIndex = mDocuments.size() - 1;

    mTabWidget->addTab(view, mapDocument->displayName());
    mTabWidget->setTabToolTip(documentIndex, mapDocument->fileName());
    connect(mapDocument, SIGNAL(fileNameChanged()), SLOT(updateDocumentTab()));
    connect(mapDocument, SIGNAL(modifiedChanged()), SLOT(updateDocumentTab()));

    switchToDocument(documentIndex);
}