qt4

问题 I would like to have one column in QTableWidget NOT editable. In forums I have read a lot about some flags but could not manage to implement. 回答1: Insert into the QTableWidget following kind of items: QTableWidgetItem *item = new QTableWidgetItem(); item->setFlags(Qt::ItemIsSelectable|Qt::ItemIsEnabled); Works fine! EDIT: QTableWidgetItem *item = new QTableWidgetItem(); item->setFlags(item->flags() ^ Qt::ItemIsEditable); This is a better solution. Thanks to @priomsrb. 回答2: The result of using

问题 The Qt documentation for QThread says to create a class from QThread, and to implement the run method. Below is taken from the 4.7 Qthread documentation... To create your own threads, subclass QThread and reimplement run(). For example: class MyThread : public QThread { public: void run(); }; void MyThread::run() { QTcpSocket socket; // connect QTcpSocket's signals somewhere meaningful ... socket.connectToHost(hostName, portNumber); exec(); } So in every single thread I've created, I've done

问题 I'am using Qt4.8 to create a pushbutton,and then I using setStyleSheet function to set style for this button and tooltip. But this code only applied for button and tooltip is doesn't work. This is my code QPushButton *status_label; this-> cellGUI.status_label->setStyleSheet(QString::fromUtf8("QPushButton {color:#E6E6E6;font-weight:bolder;font-family:tahoma;font-size:6px;background-color:rgb(255, 153, 0)} QPushButton::QToolTip {color:#2E2E2E;background-color:#CCCCCC;border:none}")); Please

问题 I'am using Qt4.8 to create a pushbutton,and then I using setStyleSheet function to set style for this button and tooltip. But this code only applied for button and tooltip is doesn't work. This is my code QPushButton *status_label; this-> cellGUI.status_label->setStyleSheet(QString::fromUtf8("QPushButton {color:#E6E6E6;font-weight:bolder;font-family:tahoma;font-size:6px;background-color:rgb(255, 153, 0)} QPushButton::QToolTip {color:#2E2E2E;background-color:#CCCCCC;border:none}")); Please

问题 I'am using Qt4.8 to create a pushbutton,and then I using setStyleSheet function to set style for this button and tooltip. But this code only applied for button and tooltip is doesn't work. This is my code QPushButton *status_label; this-> cellGUI.status_label->setStyleSheet(QString::fromUtf8("QPushButton {color:#E6E6E6;font-weight:bolder;font-family:tahoma;font-size:6px;background-color:rgb(255, 153, 0)} QPushButton::QToolTip {color:#2E2E2E;background-color:#CCCCCC;border:none}")); Please

问题 I want to remove an item whose name I know. I came up with: item = lw.findItems(name, QtCore.Qt.MatchExactly)[0] lw.takeItem(lw.indexFromItem(item).row()) Is there any more direct way of doing this? Something closer to lw.removeItem(name) ? 回答1: This leaves a bit of ambiguity for multiple entries with the same text. I would lean more toward something like [ lw.takeItem( i ) for i in range( lw.count ) if lw.item( i ).text() == name ] This will remove all items matching name from the list. If

问题 I wanted to have a total of 8 groupbox in the Dialog box. I don't know how to associate the horizontal scrollbar so that I can scroll it down and access all the group box. In the code below I have added only 2 as an example. Any help is appreciated. class Ui_Dialog(object): def setupUi(self, Dialog): Dialog.setObjectName("Dialog") Dialog.resize(400, 300) self.buttonBox = QtGui.QDialogButtonBox(Dialog) self.buttonBox.setGeometry(QtCore.QRect(300, 20, 81, 71)) self.buttonBox.setOrientation

问题 I'm new to Qt and I'm trying to figure out a way to auto-resize in Qt. The goal is for the user to be able to drag the window to make it bigger and everything resizes to the size of the window. Does anyone have any tips? 来源： https://stackoverflow.com/questions/25571298/how-to-enable-resizing-of-a-window-in-qt

问题 I am trying to add QProgressBar in my code but having some troubles. I added progress bar via Designer and in the code, I pass the pointer to QprogressBar object to a separate thread to have it update QProgressBar as it's processing data, however, I get this message: ../../src/xcb_lock.c:77: _XGetXCBBuffer: Assertion `((int) ((xcb_req) - (dpy->request)) >= 0)' failed. I am running Qt-4.5.0 on Ubuntu 8.10(2.6.27-11). I also tried Qt-4.3.5 in RHEL5(2.6.18) and I get different error, something

问题 I have a CLI application that I'm expanding to have a user interface to aid in, well, usability, and am using Qt-4.8.3. The application connects to an IRC server, and each connection resides in its own thread receiving data. A parser, running in a different thread, then processes the data and reacts accordingly - creating a channel, adding a user, etc. I've been looking through the documentation and just can't decide (or really see) what would be the most useful method to update the UI in my