Difference between revisions of "Qt/ModelView/StringListModelCheckable"
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Daviddoria (Talk | contribs) (Created page with '==main.cpp== <source lang="cpp"> #include <QApplication> #include "form.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); Form form; form.show(); ret…') |
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Latest revision as of 19:22, 17 December 2011
main.cpp
#include <QApplication> #include "form.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); Form form; form.show(); return app.exec(); }
form.h
#ifndef FORM_H #define FORM_H #include "ui_form.h" class Form : public QWidget, public Ui::Form { Q_OBJECT public: Form(QWidget *parent = 0); }; #endif
form.cpp
#include <QStringListModel> #include <QtGui> #include <iostream> #include "form.h" class CheckableStringListModel : public QStringListModel { public: void setMyStringList(const QStringList &strings) { emit beginResetModel(); CheckedStatus.resize(strings.size()); for(unsigned int i = 0; i < CheckedStatus.size(); ++i) { CheckedStatus[i] = Qt::Unchecked; } setStringList(strings); emit endResetModel(); } private: QVector<Qt::CheckState> CheckedStatus; Qt::ItemFlags flags(const QModelIndex& index) const { // If the index is not valid if (index.row() < 0 || index.row() >= rowCount()) { return Qt::NoItemFlags; } return Qt::ItemIsEditable | Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable; } QVariant data (const QModelIndex &index , int role ) const { // From QStringListModel if (index.row() < 0 || index.row() >= rowCount()) { return QVariant(); } if (role == Qt::DisplayRole || role == Qt::EditRole) { return stringList().at(index.row()); } if(role == Qt::CheckStateRole) { return CheckedStatus[index.row()]; } return QVariant(); } bool setData (const QModelIndex &index, const QVariant &value, int role) { // From QStringListModel if (index.row() < 0 || index.row() >= rowCount()) { return false; } if(role == Qt::EditRole || role == Qt::DisplayRole) { stringList().replace(index.row(), value.toString()); emit dataChanged(index, index); return true; } if(role == Qt::CheckStateRole) { //CheckedStatus[index.row()] = value.value<Qt::CheckState>(); CheckedStatus[index.row()] = static_cast<Qt::CheckState>(value.toUInt()); emit dataChanged(index, index); } return true; } }; Form::Form(QWidget *parent) : QWidget(parent) { setupUi(this); CheckableStringListModel* model = new CheckableStringListModel; QStringList list; list << "a" << "b" << "c"; model->setMyStringList(list); this->listView->setModel(model); }
form.ui
<?xml version="1.0" encoding="UTF-8"?> <ui version="4.0"> <class>Form</class> <widget class="QWidget" name="Form"> <property name="geometry"> <rect> <x>0</x> <y>0</y> <width>400</width> <height>300</height> </rect> </property> <property name="windowTitle"> <string>Form</string> </property> <layout class="QGridLayout" name="gridLayout"> <item row="0" column="0"> <widget class="QListView" name="listView"/> </item> </layout> </widget> <resources/> <connections/> </ui>
CMakeLists.txt
cmake_minimum_required(VERSION 2.6) PROJECT(StringListModelCheckable) FIND_PACKAGE(Qt4 REQUIRED) INCLUDE(${QT_USE_FILE}) QT4_WRAP_UI(UISrcs form.ui) QT4_WRAP_CPP(MOCSrcs form.h) include_directories(${include_directories} ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_CURRENT_BINARY_DIR}) ADD_EXECUTABLE(StringListModelCheckable main.cpp form.cpp ${MOCSrcs} ${UISrcs}) TARGET_LINK_LIBRARIES(StringListModelCheckable ${QT_LIBRARIES})