qt 相关问题

class PaletteListModel(QtCore.QAbstractListModel): def __init__(self,colors = [[]],headers =[],parent=None): QtCore.QAbstractTableModel.__init__(self, parent) self.__colors=colors def columnCount(self,parent): return 0 def rowCount(self,parent): return len(self.__colors) def data(self,index,role): if role==QtCore.Qt.EditRole: row=index.row() return self.__colors[row] if role==QtCore.Qt.FontRole: font=QtGui.QFont("Segoe UI") font.setPixelSize(20) return font if role == QtCore.Qt.ForegroundRole: brush = QtGui.QBrush() brush.setColor(QtGui.QColor("black")) return brush if role ==QtCore.Qt.ToolTipRole: row=index.row() return "Mex code: "+self.__colors[row] if role==QtCore.Qt.DisplayRole: row=index.row() column=index.column() value=self.__colors[row] return value if role==QtCore.Qt.DecorationRole: pixmap=QtGui.QPixmap(26,26) pixmap.load("E:\\Users\\HA\\workspace\\Projet\\copy-icon.png") icon=QtGui.QIcon(pixmap) return icon def setData(self,index,value,role=QtCore.Qt.EditRole): if role==QtCore.Qt.EditRole: row =index.row() color=value self.__colors[row]=color self.dataChanged.emit(index,index) return False def flags(self, index): return QtCore.Qt.ItemIsEnabled|QtCore.Qt.ItemIsSelectable|QtCore.Qt.ItemIsUserCheckable

python qt python-2.7 pyqt

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QQUICKWIDGET和C ++相互作用

c++ qt qquickwidget

回答 1 投票 0

如何删除Qtreeview第一列左侧的区域？

c++ windows qt qtreeview

回答 1 投票 0

为什么QT信号不是const

QT使用信号和插槽进行对象通信。信号通常称为成员函数，然后QT MOC生成该函数的定义。我想理解的...

c++ qt signals-slots

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为什么由源构建的QDOC可执行文件对libclang具有动态链接依赖关系，但是QT Installer下载的链接依赖性？

qt clang qdoc

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如何在注销上优雅地退出qapplication？我有一个带有通知区域图标的应用程序，因此主窗口可能会忽略关闭事件。我正在尝试在应用程序退出时节省偏好和历史记录。我也想在

// main.cpp # include <QApplication> # include <QMainWindow> # include <QCloseEvent> # include <QTimer> # include <iostream> class M : public QMainWindow { Q_OBJECT public: ~M(); public slots: void onAboutToQuit(); private: void closeEvent(QCloseEvent *); }; M::~M() { std::cout << "M::~M()" << std::endl; } void M::onAboutToQuit() { std::cout << "onAboutToQuit()" << std::endl; } void M::closeEvent(QCloseEvent * e) { std::cout << "closeEvent()" << std::endl; hide(); QTimer::singleShot(5000, this, SLOT(show())); e->ignore(); } int main(int argc, char * argv[]) { QApplication app(argc, argv); M m; m.setWindowModality(Qt::NonModal); m.connect(& app, SIGNAL(aboutToQuit()), SLOT(onAboutToQuit())); m.show(); return app.exec(); } # include "main.moc" // CMakeLists.txt cmake_minimum_required(VERSION 2.6) project(closeeventbug) option(QT5 "Use Qt5" OFF) if(QT5) find_package(Qt5Core REQUIRED) find_package(Qt5Widgets REQUIRED) else() find_package(Qt4 REQUIRED) include_directories(${QT_INCLUDES}) endif() include_directories(${CMAKE_CURRENT_BINARY_DIR}) set(CMAKE_AUTOMOC ON) add_executable(closeeventbug main.cpp) if(QT5) qt5_use_modules(closeeventbug Core Widgets) else() target_link_libraries(closeeventbug ${QT_QTCORE_LIBRARY} ${QT_QTGUI_LIBRARY}) endif()

c++ linux qt qt4 qt5

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如何将输入掩码和QVALIDATOR设置为一次QT的QlineDit？

c++ qt qtgui qtcore qlineedit

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我如何首先制作一个qtreeview？

中显示上述文件夹项

qt pyqt qt5 pyqt5

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qtqmessagebox默认按钮？

QMessageBox

回答 1 投票 0