General and Desktop

hi some one please tell me i just created a cube in 3d. For small values of x,y co ordinates it is working fine for bigger values it is not showing cube. it is adding to the scene but i am unable to move my view to those co ordinates."graphicsview having fitInView .is there any similar funtion for QGLWidget" @ GLWidget::GLWidget(QWidget *parent) : QGLWidget(parent) { } void GLWidget::initializeGL() { glClearColor(1,1,1,1); glShadeModel(GL_FLAT); glEnable(GL_DEPTH_TEST); glEnable(GL_CULL_FACE); } void GLWidget::paintGL() { glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); glBegin(GL_QUADS); glEnd(); } void GLWidget::resizeGL(int w, int h) { double Aspect; if(h == 0) h = 1; glViewport(0, 0, w, h); Aspect=(double)w/(double)h; glMatrixMode(GL_PROJECTION); glLoadIdentity(); double Range = 10; if (w <= h) glOrtho(-(Range),Range,-Range/Aspect,Range/Aspect,-(Range*2),Range*2); else glOrtho(-(Range*Aspect),Range*Aspect,-Range,Range,-(Range*2),Range*2); glMatrixMode(GL_MODELVIEW); glLoadIdentity(); } @

OK, I think this is because you are creating a transformation instead of using the QGraphicsItem::rotate() function. If you create and set a transformation you probably have to do the translation (moving to the center and back) yourself. So probably not a bug, but could be better documented. Anyway, good that you found a way that works, even if it was not exactly what I suggested. :)

@void LineEdit::resizeEvent(QResizeEvent *) { QStyleOptionFrameV2 panel; initStyleOption(&panel); // the save as in the first post QRect rect = style()->subElementRect(QStyle::SE_LineEditContents, &panel, this); progressIndicator->setFixedSize(rect.height(), rect.height()); progressIndicator->move(rect.x(), rect.y()); setStyleSheet(QString("padding-left: %1px;").arg(progressIndicator->width())); }@ Before first resize: !http://storage5.static.itmages.ru/i/12/0319/h_1332143675_5309478_7d93cf004c.png(before)! After: !http://storage9.static.itmages.ru/i/12/0319/h_1332143617_2963291_2d021625b1.png(after)!

I must have made a mistake, because it worked when I retried it today. Thanks a lot!

Thanks! That worked! I had actually tried to use the event filter earlier, but it hadn't worked since I didn't know about installing it on the handle instead of in the splitter itself.

Perhaps you should show us the real code, instead of a sequence of "what you entered".

Hi again, Is all of this actually needed? I found on the internet (for example http://www.qtcentre.org/threads/9342-QGraphicsItem-itemIsMovable) that the movable flag should do the trick. So i removed all handlers from my scene and so on. The Point class now looks like: @ InterpolationPoint::InterpolationPoint(const MsVector& ref) : pos(ref), iD(i++), hpos(2,1) { setAcceptedMouseButtons(Qt::LeftButton); setCursor(Qt::OpenHandCursor); setFlag(QGraphicsItem::ItemIsMovable, true); } InterpolationPoint::~InterpolationPoint() { } QRectF InterpolationPoint::boundingRect() const { return QRectF(-5, -5, 10, 10); } void InterpolationPoint::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) { Q_UNUSED(option); Q_UNUSED(widget); painter->setPen(QPen(Qt::black, 1)); painter->setBrush(Qt::SolidPattern); painter->drawEllipse(-2, -2, 4, 4); setPos(QPointFVec(pos)); } @ Moving the itemismovable into the paint didn't fix the problem for me, I can not move the point across the scene which is basically all I want: movable points, they do not need to drop a shadow or whatever, just movable. How can I achieve this?

[quote author="poporacer" date="1332042095"] QString y = str1.mid(1, 6);[/quote] This is the right approach, but it should be: @ QString y = str1.mid(2, 6);@

welcome to devnet Reporting bugs here is of no help. There is "JIRA":https://bugreports.qt-project.org/secure/Dashboard.jspa available to report bugs.

Ok, so it sounds like this code doesn't need properties to function. It seems needlessly complicated for a textbook example, but oh well.

Good every one! I found one book! "Advanced Programming in the UNIX® Environment: Second Edition" By W. Richard Stevens, Stephen A. Rago

Hi connect to database @ dBase = QSqlDatabase::addDatabase("QMYSQL"); dBase.setDatabaseName("name_database"); dBase.setHostName("127.0.0.1"); // ip or host dBase.setUserName("root"); //user_name dBase.setPassword("pass"); // dBase.open(); @ and with a requests to write or read data from database. For help read this "tread":http://qt-project.org/forums/viewthread/15037/

Set "QLabel::openExternalLinks":http://qt-project.org/doc/qt-4.8/qlabel.html#openExternalLinks-prop to false and connect to the "QLabel::linkActivated()"::http://qt-project.org/doc/qt-4.8/qlabel.html#linkActivated signal.

Brain to terminal ( not tested and this may be completely wrong ;) ): @// input is index of desired sequnce QString CNemelyGen::getSequnceNr(int sqNr) { // storage for indexes of strings QVector<int> tmpIndex; // size list -> class variable QVector, to store sizes of strings for(int i=0; i<sizeList.size(); i++) { // Calculates index of current argument sequnces tmpIndex.append(sqNr%sizeList[i]); sqNr%=sizeList[i]; } // String that will be returned QString retSqString; // generates string based on index for(int i=0; i<stringList.size(); i++) { // Gets character in each string and append it at end of return string retSqString.append(stringList.at[i].at(tmpIndex[i])); } return retSqString; }@ And as for next(), add tmpIndex to class instead of function. And only add one to last index ( make sure to check if last index isn't maxed out ( last possible index), if it is, reset it to zero, and ++ one before. And check again if it's the last one etc...) Hope that provided comments will be enough. Regards, Jake

Thanks just before i jump into it is this what you meant? [code]QHash <QString, QString> dictionary;[/code] [edit] Andre thank you a lot it works like a charm =]

Yes, I noticed it is pretty straightforward, not that I didn't trust you :P

Wahhh. Finally I have figured out what caused the problem. The imageGrabberChanged method gets called before the m_eggFinder instance created. I have no idea why did not caused SIGSEV ever. Thank you very much for your help!

Note that there is code in QtMobility (that should work just fine on the desktop as well) to enumerate system drives.