Difference between revisions of "Qt/ModelView/StandardItemModel"

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(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…')
 
 
Line 39: Line 39:
 
<source lang="cpp">
 
<source lang="cpp">
 
#include <QtGui>
 
#include <QtGui>
 +
 +
#include <iostream>
  
 
#include "form.h"
 
#include "form.h"
−
 
−
#include <QTableWidgetItem>
 
−
 
−
 
−
class CheckableModel : public QStandardItemModel
 
−
{
 
−
 
−
public:
 
−
  void setStringList(const QVector<QString> &strings)
 
−
  {
 
−
    emit beginResetModel();
 
−
    CheckedStatus.resize(strings.size());
 
−
    for(unsigned int i = 0; i < CheckedStatus.size(); ++i)
 
−
      {
 
−
      CheckedStatus[i] = Qt::Unchecked;
 
−
      }
 
−
    this->Strings = strings;
 
−
    emit endResetModel();
 
−
  }
 
−
 
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  int rowCount (const QModelIndex &parent=QModelIndex()) const
 
−
  {
 
−
    return this->Strings.size();
 
−
  }
 
−
 
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  int columnCount (const QModelIndex &parent=QModelIndex()) const
 
−
  {
 
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    return 1;
 
−
  }
 
−
 
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private:
 
−
 
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  QVector<QString> Strings;
 
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  QVector<Qt::CheckState> CheckedStatus;
 
−
 
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  Qt::ItemFlags flags(const QModelIndex& index) const
 
−
  {
 
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    // If the index is not valid
 
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    if (index.row() < 0 || index.row() >= rowCount())
 
−
      {
 
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      return Qt::NoItemFlags;
 
−
      }
 
−
 
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    return Qt::ItemIsEditable | Qt::ItemIsSelectable | Qt::ItemIsEnabled | Qt::ItemIsUserCheckable;
 
−
  }
 
−
 
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  QVariant data (const QModelIndex  &index , int role ) const
 
−
  {
 
−
    // From QStringListModel
 
−
    if (index.row() < 0 || index.row() >= rowCount())
 
−
      {
 
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      return QVariant();
 
−
      }
 
−
 
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    if (role == Qt::DisplayRole || role == Qt::EditRole)
 
−
      {
 
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      return this->Strings.at(index.row());
 
−
      }
 
−
 
−
    if(role == Qt::CheckStateRole)
 
−
      {
 
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      return this->CheckedStatus[index.row()];
 
−
      }
 
−
 
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    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)
 
−
      {
 
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      this->Strings.replace(index.row(), value.toString());
 
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      emit dataChanged(index, index);
 
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      return true;
 
−
      }
 
−
    if(role == Qt::CheckStateRole)
 
−
      {
 
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      CheckedStatus[index.row()] = static_cast<Qt::CheckState>(value.toUInt());
 
−
 
−
      emit dataChanged(index, index);
 
−
      }
 
−
    return true;
 
−
 
−
  }
 
−
};
 
  
 
Form::Form(QWidget *parent)
 
Form::Form(QWidget *parent)
Line 138: Line 49:
 
   setupUi(this);
 
   setupUi(this);
  
−
   CheckableModel* model = new CheckableModel;
+
   QStandardItemModel* model = new QStandardItemModel;
 +
 
 +
  QStandardItem item0("test");
 +
  QList<QStandardItem*> items;
 +
  items.insert(0, &item0);
 +
  model->appendRow (items);
  
−
  QVector<QString> list;
 
−
  list.push_back("a");
 
−
  list.push_back("b");
 
−
  list.push_back("c");
 
−
 
 
−
  model->setStringList(list);
 
 
   this->tableView->setModel(model);
 
   this->tableView->setModel(model);
 
}
 
}

Latest revision as of 10:59, 18 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 <QtGui>
 
#include <iostream>
 
#include "form.h"
 
Form::Form(QWidget *parent)
    : QWidget(parent)
{
  setupUi(this);
 
  QStandardItemModel* model = new QStandardItemModel;
 
  QStandardItem item0("test");
  QList<QStandardItem*> items;
  items.insert(0, &item0);
  model->appendRow (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>
  <widget class="QPushButton" name="btnUpdate">
   <property name="geometry">
    <rect>
     <x>40</x>
     <y>230</y>
     <width>91</width>
     <height>28</height>
    </rect>
   </property>
   <property name="text">
    <string>Update</string>
   </property>
  </widget>
  <widget class="QTableView" name="tableView">
   <property name="geometry">
    <rect>
     <x>80</x>
     <y>10</y>
     <width>256</width>
     <height>192</height>
    </rect>
   </property>
  </widget>
 </widget>
 <resources/>
 <connections/>
</ui>

CMakeLists.txt

cmake_minimum_required(VERSION 2.6)
 
PROJECT(StandardItemModel)
 
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(StandardItemModel main.cpp form.h form.cpp ${MOCSrcs} ${UISrcs})
TARGET_LINK_LIBRARIES(StandardItemModel ${QT_LIBRARIES})
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