├── CMakeLists.txt
├── JsonUtils.hpp
├── README.md
├── main.cpp
├── main.qml
├── qml.qrc
├── qtquickcontrols2.conf
├── sample.json
└── screenshot.png


/CMakeLists.txt:
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 1 | cmake_minimum_required(VERSION 3.5)
 2 | 
 3 | project(QML_TableView LANGUAGES CXX)
 4 | 
 5 | set(CMAKE_INCLUDE_CURRENT_DIR ON)
 6 | 
 7 | set(CMAKE_AUTOUIC ON)
 8 | set(CMAKE_AUTOMOC ON)
 9 | set(CMAKE_AUTORCC ON)
10 | 
11 | set(CMAKE_CXX_STANDARD 11)
12 | set(CMAKE_CXX_STANDARD_REQUIRED ON)
13 | 
14 | # QtCreator supports the following variables for Android, which are identical to qmake Android variables.
15 | # Check http://doc.qt.io/qt-5/deployment-android.html for more information.
16 | # They need to be set before the find_package(Qt5 ...) call.
17 | 
18 | #if(ANDROID)
19 | #    set(ANDROID_PACKAGE_SOURCE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/android")
20 | #    if (ANDROID_ABI STREQUAL "armeabi-v7a")
21 | #        set(ANDROID_EXTRA_LIBS
22 | #            ${CMAKE_CURRENT_SOURCE_DIR}/path/to/libcrypto.so
23 | #            ${CMAKE_CURRENT_SOURCE_DIR}/path/to/libssl.so)
24 | #    endif()
25 | #endif()
26 | 
27 | find_package(Qt5 COMPONENTS Core Quick Widgets REQUIRED)
28 | 
29 | if(ANDROID)
30 |     add_library(QML_TableView SHARED
31 |       main.cpp
32 |       JsonUtils.hpp
33 |       qml.qrc
34 |     )
35 | else()
36 |     add_executable(QML_TableView
37 |       main.cpp
38 |       JsonUtils.hpp
39 |       qml.qrc
40 |     )
41 | endif()
42 | 
43 | target_compile_definitions(QML_TableView
44 |   PRIVATE $<$<OR:$<CONFIG:Debug>,$<CONFIG:RelWithDebInfo>>:QT_QML_DEBUG>)
45 | target_link_libraries(QML_TableView
46 |   PRIVATE Qt5::Core Qt5::Quick Qt5::Widgets)
47 | 


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/JsonUtils.hpp:
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 1 | #ifndef JSONUTILS_HPP
 2 | #define JSONUTILS_HPP
 3 | #pragma once
 4 | 
 5 | #include <QObject>
 6 | #include <QTextStream>
 7 | #include <QFileDialog>
 8 | #include <QJsonDocument>
 9 | #include <QtDebug>
10 | 
11 | class JsonUtils : public QObject {
12 |     Q_OBJECT
13 | 
14 | public:
15 | 
16 |     explicit JsonUtils(QObject* parent = nullptr) { Q_UNUSED(parent) };
17 | 
18 |     Q_INVOKABLE void saveJson(QString json){
19 |         QString fileName = QFileDialog::getSaveFileName(nullptr, tr("Save File"), QDir::homePath(), tr("Json (*.json)"));
20 |         if(fileName.isEmpty() || fileName.isNull()) return;
21 | 
22 |         QFile file(fileName);
23 |         if(file.open(QFile::WriteOnly | QFile::Text)){
24 |             // converting to json document only to get the indented text
25 |             auto jsonDoc = QJsonDocument::fromJson(json.toUtf8());
26 |             file.write(jsonDoc.toJson());
27 |         }
28 |         file.close();
29 |     };
30 | 
31 |     Q_INVOKABLE QString getFileContent(QUrl url){
32 |         QFile file(url.toLocalFile());
33 |         if(!file.open(QFile::ReadOnly | QFile::Text))
34 |             qDebug() << "Open file url error";
35 |         QTextStream in(&file);
36 |         return in.readAll();
37 |     }
38 | 
39 | };
40 | 
41 | #endif
42 | 


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/README.md:
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 1 | # QML Custom Tableview #
 2 | 
 3 | A very simple qml dynamic tableview example, with:
 4 | 
 5 | - qt quick control delegates
 6 | - vertical and horizontal headers
 7 | - json serialization
 8 | 
 9 | <img src="screenshot.png" width="770" height="611">
10 | 


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/main.cpp:
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 1 | #include <QApplication>
 2 | #include <QQmlApplicationEngine>
 3 | #include <QQmlContext>
 4 | 
 5 | #include "JsonUtils.hpp"
 6 | 
 7 | int main(int argc, char *argv[])
 8 | {
 9 |     QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
10 | 
11 |     QApplication app(argc, argv);
12 | 
13 |     QQmlApplicationEngine engine;
14 | 
15 |     JsonUtils jsonUtils;
16 |     engine.rootContext()->setContextProperty("JsonUtils", &jsonUtils);
17 | 
18 |     const QUrl url(QStringLiteral("qrc:/main.qml"));
19 |     QObject::connect(&engine, &QQmlApplicationEngine::objectCreated,
20 |                      &app, [url](QObject *obj, const QUrl &objUrl) {
21 |         if (!obj && url == objUrl)
22 |             QCoreApplication::exit(-1);
23 |     }, Qt::QueuedConnection);
24 |     engine.load(url);
25 | 
26 |     return app.exec();
27 | }
28 | 


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/main.qml:
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  1 | import QtQuick 2.12
  2 | import QtQuick.Controls 2.5
  3 | import QtQuick.Layouts 1.3
  4 | import QtQuick.Dialogs 1.2
  5 | import Qt.labs.qmlmodels 1.0
  6 | 
  7 | ApplicationWindow {
  8 | 
  9 |     id: root
 10 |     visible: true
 11 |     width: 640; height: 480
 12 |     title: qsTr("QML TableView Example - by Gabriel Christo")
 13 | 
 14 |     property var combobox_model: ["Value 1", "Value 2", "Value 3"] // combobox stringlist
 15 |     property var horizontal_header_data: ["Combobox", "Checkbox", "TextFields", "Spinbox", "Slider"] // table header
 16 | 
 17 |     // updates model's row number
 18 |     function update_table_model(new_rows_number){
 19 |         // row data model (must be paired with table model)
 20 |         let row_data = {
 21 |             combobox_index: 0,
 22 |             checkbox_state: 0,
 23 |             textfield_1_string: "",
 24 |             textfield_2_string: "",
 25 |             spinbox_value: 0,
 26 |             slider_value: 0
 27 |         }
 28 |         if(new_rows_number === 0 || isNaN(new_rows_number)){
 29 |             tablemodel.clear()
 30 |         }
 31 |         else if(new_rows_number > tablemodel.rowCount){
 32 |             for(let i = tablemodel.rowCount; i < new_rows_number; i++) tablemodel.appendRow(row_data)
 33 |         }
 34 |         else if(new_rows_number < tablemodel.rowCount){
 35 |             tablemodel.removeRow(new_rows_number, tablemodel.rowCount - new_rows_number)
 36 |         }
 37 |         tableview.forceLayout() // forces tableview update
 38 |     }
 39 | 
 40 |     // file dialog to pick json file
 41 |     FileDialog {
 42 |         id: filedialog
 43 |         title: "Select a json file"
 44 |         folder: shortcuts.documents
 45 |         nameFilters: ["Json (*.json)"]
 46 |         onAccepted: {
 47 |             tablemodel.rows = JSON.parse(JsonUtils.getFileContent(filedialog.fileUrl)) // updates model with json data
 48 |             rowsnumber.text = tablemodel.rowCount // updating textfield value
 49 |         }
 50 |     }
 51 | 
 52 |     Column {
 53 | 
 54 |         height: parent.height; width: parent.width
 55 | 
 56 |         RowLayout {
 57 |             spacing: 10
 58 |             height: 0.1 * parent.height
 59 |             anchors.horizontalCenter: parent.horizontalCenter
 60 |             Label { text: "Rows:" }
 61 |             TextField {
 62 |                 id: rowsnumber; text: "0"; selectByMouse: true
 63 |                 validator: IntValidator{}
 64 |                 onTextEdited: update_table_model(parseInt(this.text))
 65 |             }
 66 |             Button {
 67 |                 text: "Create Json"
 68 |                 // passing table model data as string to backend
 69 |                 onClicked:{
 70 |                     JsonUtils.saveJson(JSON.stringify(tablemodel.rows))
 71 |                  }
 72 |             }
 73 |             Button {
 74 |                 text: "Load Json"
 75 |                 onClicked: filedialog.open() // dialog to select json file
 76 |             }
 77 |         }
 78 | 
 79 |         TableView {
 80 |             id: tableview
 81 |             width: 0.85 * parent.width; height: 0.8 * parent.height
 82 |             anchors.horizontalCenter: parent.horizontalCenter
 83 |             clip: true // clip content to table dimensions
 84 |             boundsBehavior: Flickable.StopAtBounds
 85 |             reuseItems: false // forces table to destroy delegates
 86 |             columnSpacing: 1 // in case of big/row spacing, you need to take care of width/height providers (to get along with it)
 87 | 
 88 |             // margins to vertical/horizontal headers
 89 |             leftMargin: verticalHeader.width
 90 |             topMargin: horizontalHeader.height
 91 | 
 92 |             // scrollbar config
 93 |             ScrollBar.horizontal: ScrollBar{
 94 |                 //policy: "AlwaysOn"
 95 |             }
 96 |             ScrollBar.vertical: ScrollBar{
 97 |                 //policy: "AlwaysOn"
 98 |             }
 99 |             ScrollIndicator.horizontal: ScrollIndicator { }
100 |             ScrollIndicator.vertical: ScrollIndicator { }
101 | 
102 |             // width and height providers
103 |             property var columnWidths: [100, 80, 120, 100, 100]
104 |             columnWidthProvider: function(column){ return columnWidths[column] }
105 |             rowHeightProvider: function (column) { return 25 }
106 | 
107 |             // table horizontal header
108 |             Row {
109 |                 id: horizontalHeader
110 |                 y: tableview.contentY
111 |                 z: 2
112 |                 Repeater {
113 |                     model: tableview.columns
114 |                     Label {
115 |                         width: tableview.columnWidthProvider(modelData); height: 30
116 |                         text: horizontal_header_data[index]
117 |                         padding: 10
118 |                         verticalAlignment: Text.AlignVCenter; horizontalAlignment: Text.AlignHCenter
119 |                         color: "white"
120 |                         background: Rectangle { color: "#b5b5b5" }
121 |                     }
122 |                 }
123 |             }
124 | 
125 |             // table vertical header
126 |             Column {
127 |                 id: verticalHeader
128 |                 x: tableview.contentX
129 |                 z: 2
130 |                 Repeater {
131 |                     model: tableview.rows
132 |                     Label {
133 |                         width: 30; height: tableview.rowHeightProvider(modelData)
134 |                         text: index
135 |                         padding: 10
136 |                         verticalAlignment: Text.AlignVCenter; horizontalAlignment: Text.AlignHCenter
137 |                         color: "white"
138 |                         background: Rectangle { color: "#b5b5b5" }
139 |                     }
140 |                 }
141 |             }
142 | 
143 |             // defining model columns' roles
144 |             model: TableModel {
145 |                 id: tablemodel
146 |                 TableModelColumn{ display: "combobox_index" }
147 |                 TableModelColumn{ display: "checkbox_state" }
148 |                 TableModelColumn{ display: "textfield_1_string"; edit: "textfield_2_string" } // using two roles
149 |                 TableModelColumn{ display: "spinbox_value" }
150 |                 TableModelColumn{ display: "slider_value" }
151 |             }
152 | 
153 |             // defining custom delegates and model connection
154 |             delegate: DelegateChooser {
155 |                 DelegateChoice {
156 |                     column: 0
157 |                     delegate: ComboBox { // here we need to be careful: conflict between table model and combobox model
158 |                         currentIndex: display
159 |                         model: combobox_model
160 |                         onActivated: display = this.currentIndex // we've only used 'display' keyword, because combobox model doesnt have this as role name
161 |                     }
162 |                 }
163 |                 DelegateChoice {
164 |                     column: 1
165 |                     delegate: CheckBox {
166 |                         checkState: model.display
167 |                         onToggled: model.display = this.checkState
168 |                     }
169 |                 }
170 |                 DelegateChoice {
171 |                     column: 2
172 |                     delegate: RowLayout { // two textfields in same column model
173 |                         spacing: 0
174 |                         TextField {
175 |                             implicitWidth: parent.width / 2
176 |                             text: model.display
177 |                             placeholderText: "x"
178 |                             selectByMouse: true
179 |                             onTextEdited: model.display = this.text
180 |                         }
181 |                         TextField {
182 |                             implicitWidth: parent.width / 2
183 |                             text: model.edit
184 |                             placeholderText: "y"
185 |                             selectByMouse: true
186 |                             onTextEdited: model.edit = this.text
187 |                         }
188 |                     }
189 |                 }
190 |                 DelegateChoice {
191 |                     column: 3
192 |                     delegate: SpinBox {
193 |                         value: model.display
194 |                         from: 0; to: 99
195 |                         stepSize: 1
196 |                         onValueModified: model.display = this.value
197 |                     }
198 |                 }
199 |                 DelegateChoice {
200 |                     column: 4
201 |                     delegate: Slider {
202 |                         value: model.display
203 |                         from: 0; to: 32
204 |                         stepSize: 1
205 |                         onMoved: model.display = this.value
206 |                     }
207 |                 }
208 |             }
209 |         }
210 | 
211 |     }
212 | 
213 | }
214 | 


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/qml.qrc:
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1 | <RCC>
2 |     <qresource prefix="/">
3 |         <file>main.qml</file>
4 |         <file>qtquickcontrols2.conf</file>
5 |     </qresource>
6 | </RCC>
7 | 


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/qtquickcontrols2.conf:
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1 | ; This file can be edited to change the style of the application
2 | ; Read "Qt Quick Controls 2 Configuration File" for details:
3 | ; http://doc.qt.io/qt-5/qtquickcontrols2-configuration.html
4 | 
5 | [Controls]
6 | Style=Fusion
7 | 


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/sample.json:
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  1 | [
  2 |     {
  3 |         "checkbox_state": 2,
  4 |         "combobox_index": 0,
  5 |         "slider_value": 3,
  6 |         "spinbox_value": 1,
  7 |         "textfield_1_string": "1",
  8 |         "textfield_2_string": ""
  9 |     },
 10 |     {
 11 |         "checkbox_state": 0,
 12 |         "combobox_index": 1,
 13 |         "slider_value": 5,
 14 |         "spinbox_value": 2,
 15 |         "textfield_1_string": "2",
 16 |         "textfield_2_string": "2"
 17 |     },
 18 |     {
 19 |         "checkbox_state": 2,
 20 |         "combobox_index": 2,
 21 |         "slider_value": 10,
 22 |         "spinbox_value": 3,
 23 |         "textfield_1_string": "3",
 24 |         "textfield_2_string": ""
 25 |     },
 26 |     {
 27 |         "checkbox_state": 0,
 28 |         "combobox_index": 0,
 29 |         "slider_value": 15,
 30 |         "spinbox_value": 4,
 31 |         "textfield_1_string": "4",
 32 |         "textfield_2_string": "4"
 33 |     },
 34 |     {
 35 |         "checkbox_state": 2,
 36 |         "combobox_index": 1,
 37 |         "slider_value": 18,
 38 |         "spinbox_value": 5,
 39 |         "textfield_1_string": "5",
 40 |         "textfield_2_string": ""
 41 |     },
 42 |     {
 43 |         "checkbox_state": 0,
 44 |         "combobox_index": 2,
 45 |         "slider_value": 24,
 46 |         "spinbox_value": 6,
 47 |         "textfield_1_string": "6",
 48 |         "textfield_2_string": "6"
 49 |     },
 50 |     {
 51 |         "checkbox_state": 2,
 52 |         "combobox_index": 0,
 53 |         "slider_value": 26,
 54 |         "spinbox_value": 0,
 55 |         "textfield_1_string": "7",
 56 |         "textfield_2_string": ""
 57 |     },
 58 |     {
 59 |         "checkbox_state": 0,
 60 |         "combobox_index": 1,
 61 |         "slider_value": 30,
 62 |         "spinbox_value": 0,
 63 |         "textfield_1_string": "",
 64 |         "textfield_2_string": ""
 65 |     },
 66 |     {
 67 |         "checkbox_state": 2,
 68 |         "combobox_index": 2,
 69 |         "slider_value": 32,
 70 |         "spinbox_value": 0,
 71 |         "textfield_1_string": "",
 72 |         "textfield_2_string": ""
 73 |     },
 74 |     {
 75 |         "checkbox_state": 2,
 76 |         "combobox_index": 0,
 77 |         "slider_value": 26,
 78 |         "spinbox_value": 0,
 79 |         "textfield_1_string": "",
 80 |         "textfield_2_string": ""
 81 |     },
 82 |     {
 83 |         "checkbox_state": 0,
 84 |         "combobox_index": 0,
 85 |         "slider_value": 22,
 86 |         "spinbox_value": 0,
 87 |         "textfield_1_string": "",
 88 |         "textfield_2_string": ""
 89 |     },
 90 |     {
 91 |         "checkbox_state": 2,
 92 |         "combobox_index": 0,
 93 |         "slider_value": 17,
 94 |         "spinbox_value": 0,
 95 |         "textfield_1_string": "",
 96 |         "textfield_2_string": ""
 97 |     },
 98 |     {
 99 |         "checkbox_state": 0,
100 |         "combobox_index": 0,
101 |         "slider_value": 12,
102 |         "spinbox_value": 0,
103 |         "textfield_1_string": "",
104 |         "textfield_2_string": "33"
105 |     },
106 |     {
107 |         "checkbox_state": 2,
108 |         "combobox_index": 0,
109 |         "slider_value": 9,
110 |         "spinbox_value": 0,
111 |         "textfield_1_string": "",
112 |         "textfield_2_string": "44"
113 |     },
114 |     {
115 |         "checkbox_state": 0,
116 |         "combobox_index": 0,
117 |         "slider_value": 5,
118 |         "spinbox_value": 0,
119 |         "textfield_1_string": "",
120 |         "textfield_2_string": "55"
121 |     },
122 |     {
123 |         "checkbox_state": 2,
124 |         "combobox_index": 2,
125 |         "slider_value": 0,
126 |         "spinbox_value": 0,
127 |         "textfield_1_string": "",
128 |         "textfield_2_string": ""
129 |     }
130 | ]
131 | 


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/screenshot.png:
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https://raw.githubusercontent.com/gabrielchristo/qml-tableview/6ec9f15f14b4c8b12721a33c02c49e2aa4372599/screenshot.png


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