Place multiple items in one Cell in a GridView

morker

Hi,

is it possible to place multiple items in on Cell in a GridView? I'm using a QAbstractListModel to set the data.

My Model:

@
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#include <QAbstractListModel>
#include <QStringList>

//![0]
class Timeline
{
public:
Timeline(const QString &deviceImage, const QString &euro, const QString &kwh, const QString &time, const bool elementVisible);
Timeline(const QString &date, const bool &elementVisible);
Timeline(const bool &elementVisible);
//![0]

QString deviceImage() const;
QString euro() const;
QString kwh() const;
QString time() const;
QString date() const;
bool elementVisible() const;

private:
QString m_deviceImage;
QString m_euro;
QString m_kwh;
QString m_time;
QString m_date;
bool m_elementVisible;

//![1]

};

class TimelineModel : public QAbstractListModel
{
Q_OBJECT
public:
enum TimelineRoles {
DeviceImageRole = Qt::UserRole + 1,
EuroRole,
KwhRole,
TimeRole,
DateRole,
ElementVisibleRole
};

TimelineModel(QObject *parent = 0);
//![1]

void addDevice(const Timeline &device);

int rowCount(const QModelIndex & parent = QModelIndex()) const;

QVariant data(const QModelIndex & index, int role = Qt::DisplayRole) const;

protected:
QHash<int, QByteArray> roleNames() const;
private:
QList<Timeline> m_devices;
//![2]
};
//![2]
@

My GridView:

@
import QtQuick 2.2
import QtQuick.Layouts 1.1
import QtQuick.Controls 1.1

Rectangle {
anchors.fill: parent

GridView {
    id: gridView1
    anchors.fill: parent
    cellWidth: grid.width/3
    cellHeight: grid.height/3
    model: timelineModel
    delegate: Item {
        x: 5
        height: 50
        Column {
            spacing: 20

            Button { id: deviceImageButton; iconSource: deviceImage; visible: elementVisible; anchors.horizontalCenter: parent.horizontalCenter; onClicked: setVisibleEffect(euroText, kwhText, timeText) }
            Text { id: euroText; text: euro; font.pointSize: 12; visible: false; anchors.horizontalCenter: parent.horizontalCenter }
            Text { id: kwhText; text: kwh; visible: false; font.pointSize: 12; anchors.horizontalCenter: parent.horizontalCenter }
            Text { id: timeText; text: time; visible: false; font.pointSize: 12; anchors.horizontalCenter: parent.horizontalCenter }

            Rectangle {
                id: dateRectangle
                color: "#808080"
                Text { id: dataText; text: date; visible: true; anchors.horizontalCenter: parent.horizontalCenter; anchors.verticalCenter: parent.horizontalCenter; }
                //                    width: childrenRect.width
                //                    height: childrenRect.height
            }
        }
    }
}

}
@

My first idea is to solve this with QList inside the TimelineModel? Or any other approaches?

Cheers

dasRicardo

Depends on what you want delegate can be what ever you want and derived from Item like Rectangle or whatever.

morker

I want to place multiple buttons and text in one cell. How can I do this? Everytime if I place more than one button than the button gets in the next cell and not in the same cell.

Any Ideas?

morker

Do I have to modify my qml dynamically or can I handle this with my model?

dasRicardo

Sorry i'm not really understand what you want or what's the problem. maybe this helps:

@
Rectangle {
width: 300; height: 200

    GridView {
        id: grid
        anchors.fill: parent
        cellWidth: 80; cellHeight: 80

        model: ListModel {

          ListElement {
              name: "Jim Williams"
              portrait: "pics/portrait.png"
              button_1: "1_1"
              button_2: "1_2"
              button_3: "2_3"
          }
          ListElement {
              name: "John Brown"
              portrait: "pics/portrait.png"
              button_1: "2_1"
              button_2: "2_2"
              button_3: "2_3"
          }
          ListElement {
              name: "Bill Smyth"
              portrait: "pics/portrait.png"
              button_1: "3_1"
              button_2: "3_2"
              button_3: "3_3"
          }
          ListElement {
              name: "Sam Wise"
              portrait: "pics/portrait.png"
              button_1: "4_1"
              button_2: "4_2"
              button_3: "4_3"
          }
      }
        delegate: Item {
          width: grid.cellWidth; height: grid.cellHeight
          Column {
              anchors.fill: parent
              Image { source: portrait; anchors.horizontalCenter: parent.horizontalCenter }
              Text { text: name; anchors.horizontalCenter: parent.horizontalCenter }
              Button { text: button_1; onClicked: {console.log(button_1);}}
              Button { text: button_2; onClicked: {console.log(button_2);}}
              Button { text: button_3; onClicked: {console.log(button_3);}}
          }
      }
      highlight: Rectangle { color: "lightsteelblue"; radius: 5 }
      focus: true
    }
}

@

morker

But what is if you want to place in one cell for example 3 buttons and in the next cell for example 5 buttons... Can you handle this with your model oder do I have to change my qml every time dynamically?

Thanks

dasRicardo

The model never handle anything. You have dynamic data, so you need dynamic element creation. My source is only a solution if your model items have the same data structure. You see it, ListElement have always the same properties only the values are different. You are a German guy right?

morker

Right! How can I use dynamic element creation? Is this possible with repeater?

dasRicardo

Take a look in this forum or use "google":https://www.google.de/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=qml+dynamic+object+creation. And please add [SOLVED] to the titles of all your solved threads! I'm also from Germany :)

morker

Thanks dasRicardo!

I extend my code with a javascript to set my elements dynamically. But how can I set my button and my text in my gridview in one cell instead of placing them in separate cells?

This is what I want:

I Button I
I Text I
I Text I
I Text I
I
I Button I
I Text I
I Text I
I Text I

This is how it looks like at the moment:

I Button I I Button I
I Text I I Text I
I Text I I Text I
I Text I I Text I

my main.cpp

@
#include <QApplication>
#include <QQmlApplicationEngine>
#include <QtQml>
#include <client.h>
#include <timeline.h>

#include <QQmlComponent>

int main(int argc, char *argv[])
{
QApplication app(argc, argv);

QQmlApplicationEngine engine;
TimelineModel model;

model.addDevice(Timeline("content/image/devices/water_heater.png", "1,70 €", "0,80 kWh", "16:00 - 16:45", true));
model.addDevice(Timeline("content/image/devices/tv", "1,70 €", "0,80 kWh", "16:00 - 16:45", true));
                                                                                                         model.addDevice(Timeline("content/image/devices/device_placeholder.png", "1,70 €", "0,80 kWh", "16:00 - 16:45", true));
model.addDevice(Timeline("12 August", false));

engine.rootContext()->setContextProperty("timelineModel", &model); engine.load(QUrl(QStringLiteral("qrc:///main.qml")));

return app.exec&#40;&#41;;

}
@

my timeline.qml:

@
import QtQuick 2.2
import QtQuick.Dialogs 1.1
import QtQuick.Controls 1.1
import "componentCreation.js" as MyScript

Rectangle {
id: timelineRectangle
anchors.fill: parent
visible: true
Loader {
id: qmlloader
// anchors.fill: parent
z: 1
}

Rectangle {
    id: rectangle1
    x: parent.width/2 - 10;
    width: 20
    height: parent.height;
    color: "#000000"
    clip: false
    anchors.horizontalCenter: parent.horizontalCenter
    anchors.bottom: parent.bottom
    anchors.top: parent.top
}

Component {
    id: timelineDelegate
    Item {
        width: grid.cellWidth; height: grid.cellHeight

        Column {
            id: timelineColumn
            anchors.fill: parent
            spacing: 20

            Component.onCompleted: MyScript.createSpriteObjects(timelineColumn&#41;;

        }
    }
}

GridView {
    id: grid
    flickableDirection: Flickable.AutoFlickDirection

    anchors.fill: parent
    cellWidth: grid.width/3
    cellHeight: grid.height/3
    anchors.margins: 100

    delegate: timelineDelegate
    model: timelineModel
}

}
@

my componentCreation.js:

@
var component;
var sprite;

function createSpriteObjects(timeParent) {
component = Qt.createComponent("TimelineItems.qml");
if (component.status == Component.Ready) {
sprite = component.createObject(timeParent);
}

if (sprite == null) {
    // Error Handling
    console.log("Error creating object");
    console.log("component: " + component.error);
}

}
@

my TimelineItems.qml

@
Rectangle {

Column {


    Button {text: "Button"; anchors.horizontalCenter: parent.horizontalCenter}
    Text {text: "euro" }
    Text {text: "kwh" }
    Text {text: "time" }
}

}

@

Place multiple items in one Cell in a GridView

I Button I I Text I I Text I I Text I I I Button I I Text I I Text I I Text I

I Button I
I Text I
I Text I
I Text I
I
I Button I
I Text I
I Text I
I Text I