Difference between revisions of "Qt/ModelView/AbstractListModelCheckable"
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< Qt
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…') |
Daviddoria (Talk | contribs) (Fixed - cannot use bool to represent a Qt::CheckState) |
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(3 intermediate revisions by the same user not shown) | |||
Line 28: | Line 28: | ||
{ | { | ||
public: | public: | ||
− | Item(const QString& name = QString(), const | + | Item(const QString& name = QString(), const Qt::CheckState displayed = Qt::Unchecked) : |
Name(name), Displayed(displayed){} | Name(name), Displayed(displayed){} | ||
QString Name; | QString Name; | ||
− | + | Qt::CheckState Displayed; | |
}; | }; | ||
Line 61: | Line 61: | ||
#include "AbstractListModelCheckable.h" | #include "AbstractListModelCheckable.h" | ||
− | #include < | + | #include <iostream> |
int AbstractListModelCheckable::setItems(const QVector<Item>& items) | int AbstractListModelCheckable::setItems(const QVector<Item>& items) | ||
{ | { | ||
+ | emit beginResetModel(); | ||
this->Items = items; | this->Items = items; | ||
+ | emit endResetModel(); | ||
} | } | ||
Qt::ItemFlags AbstractListModelCheckable::flags (const QModelIndex &index ) const | Qt::ItemFlags AbstractListModelCheckable::flags (const QModelIndex &index ) const | ||
{ | { | ||
− | return Qt::ItemIsUserCheckable | Qt:: | + | if (index.row() < 0 || index.row() >= rowCount() || !index.isValid()) |
+ | { | ||
+ | return Qt::NoItemFlags; | ||
+ | } | ||
+ | return Qt::ItemIsUserCheckable | Qt::ItemIsEditable | Qt::ItemIsEnabled; | ||
} | } | ||
Line 85: | Line 91: | ||
QVariant AbstractListModelCheckable::data (const QModelIndex &index , int role ) const | QVariant AbstractListModelCheckable::data (const QModelIndex &index , int role ) const | ||
{ | { | ||
− | if (index.row() < 0 || index.row() >= rowCount()) | + | if (index.row() < 0 || index.row() >= rowCount() || !index.isValid()) |
{ | { | ||
return QVariant(); | return QVariant(); | ||
Line 105: | Line 111: | ||
bool AbstractListModelCheckable::setData (const QModelIndex &index, const QVariant &value, int role) | bool AbstractListModelCheckable::setData (const QModelIndex &index, const QVariant &value, int role) | ||
{ | { | ||
− | if (index.row() < 0 || index.row() >= rowCount()) | + | if (index.row() < 0 || index.row() >= rowCount() || !index.isValid()) |
{ | { | ||
return false; | return false; | ||
} | } | ||
− | |||
− | |||
− | |||
− | |||
− | |||
− | |||
if(role == Qt::CheckStateRole) | if(role == Qt::CheckStateRole) | ||
{ | { | ||
this->Items[index.row()].Displayed = static_cast<Qt::CheckState>(value.toUInt()); | this->Items[index.row()].Displayed = static_cast<Qt::CheckState>(value.toUInt()); | ||
+ | } | ||
− | + | emit dataChanged(index, index); | |
− | + | ||
return true; | return true; | ||
− | |||
} | } | ||
Line 170: | Line 169: | ||
QVector<Item> items; | QVector<Item> items; | ||
− | items.push_back(Item("Test0", | + | items.push_back(Item("Test0", Qt::Unchecked)); |
− | items.push_back(Item("Test1", | + | items.push_back(Item("Test1", Qt::Checked)); |
− | items.push_back(Item("Test2", | + | items.push_back(Item("Test2", Qt::Unchecked)); |
model->setItems(items); | model->setItems(items); | ||
this->tableView->setModel(model); | this->tableView->setModel(model); |
Latest revision as of 13:26, 18 December 2011
Contents
main.cpp
#include <QApplication> #include "form.h" int main(int argc, char *argv[]) { QApplication app(argc, argv); Form form; form.show(); return app.exec(); }
AbstractListModelCheckable.h
#ifndef AbstractListModelCheckable_H #define AbstractListModelCheckable_H #include <QAbstractListModel> #include <QVector> class Item { public: Item(const QString& name = QString(), const Qt::CheckState displayed = Qt::Unchecked) : Name(name), Displayed(displayed){} QString Name; Qt::CheckState Displayed; }; class AbstractListModelCheckable : public QAbstractListModel { public: AbstractListModelCheckable(); QVariant data(const QModelIndex& index, int role) const; bool setData (const QModelIndex &index, const QVariant &value, int role); int rowCount(const QModelIndex &parent=QModelIndex() ) const; int setItems(const QVector<Item>& items); Qt::ItemFlags flags (const QModelIndex &index ) const; protected: QVector<Item> Items; }; #endif
AbstractListModelCheckable.cpp
#include "AbstractListModelCheckable.h" #include <iostream> int AbstractListModelCheckable::setItems(const QVector<Item>& items) { emit beginResetModel(); this->Items = items; emit endResetModel(); } Qt::ItemFlags AbstractListModelCheckable::flags (const QModelIndex &index ) const { if (index.row() < 0 || index.row() >= rowCount() || !index.isValid()) { return Qt::NoItemFlags; } return Qt::ItemIsUserCheckable | Qt::ItemIsEditable | Qt::ItemIsEnabled; } AbstractListModelCheckable::AbstractListModelCheckable() : QAbstractListModel() { } int AbstractListModelCheckable::rowCount(const QModelIndex& parent) const { return this->Items.size(); } QVariant AbstractListModelCheckable::data (const QModelIndex &index , int role ) const { if (index.row() < 0 || index.row() >= rowCount() || !index.isValid()) { return QVariant(); } if (role == Qt::DisplayRole || role == Qt::EditRole) { return this->Items.at(index.row()).Name; } if(role == Qt::CheckStateRole) { return this->Items[index.row()].Displayed; } return QVariant(); } bool AbstractListModelCheckable::setData (const QModelIndex &index, const QVariant &value, int role) { if (index.row() < 0 || index.row() >= rowCount() || !index.isValid()) { return false; } if(role == Qt::CheckStateRole) { this->Items[index.row()].Displayed = static_cast<Qt::CheckState>(value.toUInt()); } emit dataChanged(index, index); return true; }
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); public slots: }; #endif
form.cpp
#include <QAbstractTableModel> #include <QtGui> #include <iostream> #include <sstream> #include "form.h" #include "AbstractListModelCheckable.h" Form::Form(QWidget *parent) : QWidget(parent) { setupUi(this); AbstractListModelCheckable* model = new AbstractListModelCheckable; QVector<Item> items; items.push_back(Item("Test0", Qt::Unchecked)); items.push_back(Item("Test1", Qt::Checked)); items.push_back(Item("Test2", Qt::Unchecked)); model->setItems(items); this->tableView->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="QTableView" name="tableView"> <attribute name="horizontalHeaderStretchLastSection"> <bool>true</bool> </attribute> </widget> </item> <item row="1" column="0"> <widget class="QPushButton" name="btnUpdate"> <property name="text"> <string>Update</string> </property> </widget> </item> </layout> </widget> <resources/> <connections/> </ui>
CMakeLists.txt
cmake_minimum_required(VERSION 2.6) PROJECT(AbstractListModelCheckable) 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(AbstractListModelCheckable main.cpp AbstractListModelCheckable.cpp form.cpp ${MOCSrcs} ${UISrcs}) TARGET_LINK_LIBRARIES(AbstractListModelCheckable ${QT_LIBRARIES})