Align a QPushButton in the cellwidget of QTableWidget

[rawfool]

I've created a custom class(DeviceState_Indicator) which inherits QPushButton. I want to use that as an LED indicator and I'm successful in doing that. Now I've placed that widget in a cell of a QTableWidget.

for(int iCount = 0; iCount < NUM_OF_DEVICES; iCount++)
{
    oDeviceStateIndication[iCount] = new DeviceState_Indicator(0, INDICATOR_GREEN);
    oDevStatePanel->setCellWidget(iCount, 2, oDeviceStateIndication[iCount]);
}

for(int iCount = 0; iCount < NUM_OF_DEVICES; iCount++)
{
    oDeviceStateIndication[iCount] = new DeviceState_Indicator(0, INDICATOR_GREEN);
    oDevStatePanel->setCellWidget(iCount, 2, oDeviceStateIndication[iCount]);
}

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The problem is, I'm unable to align the DeviceState_Indicator widget to the center (as shown in the pic attached). How do I align it to center?

[Lykurg]

As fas as I know, the widget takes the whole space of the cell, so the custom widget has to paint itself centered. Or you insert QWidget which has a layout, spacers and the LED-Widget. But this would be madness. Alter your LED class that is paints the "image" centered.

[rawfool]

Alter your LED class that is paints the "image" centered.

It's not an image, it's a QPushButton. I'm not getting anything that gives me options to align/space/set margin.


Is there any widget or something (which is not an image) which I can use as an LED indicator inside a QTableWidget cell?

#ifndef DEVICESTATE_INDICATOR_H
#define DEVICESTATE_INDICATOR_H
 
#include <QPushButton>
#include <QString>
 
#define INDICATOR_GREEN         "background-color: green; border-radius: 7px; "
#define INDICATOR_RED           "background-color: red; border-radius: 7px; "
#define INDICATOR_YELLOW        "background-color: yellow; border-radius: 7px; "
#define INDICATOR_GRAY          "background-color: lightGray; border-radius: 7px; "
 
 
class DeviceState_Indicator : public QPushButton
{
    Q_OBJECT
public:
    explicit DeviceState_Indicator(QWidget *parent, QString Indicator_Color);
 
signals:
 
public slots:
 
};
 
#endif // DEVICESTATE_INDICATOR_H

#ifndef DEVICESTATE_INDICATOR_H
#define DEVICESTATE_INDICATOR_H

#include <QPushButton>
#include <QString>

#define INDICATOR_GREEN         "background-color: green; border-radius: 7px; "
#define INDICATOR_RED           "background-color: red; border-radius: 7px; "
#define INDICATOR_YELLOW        "background-color: yellow; border-radius: 7px; "
#define INDICATOR_GRAY          "background-color: lightGray; border-radius: 7px; "


class DeviceState_Indicator : public QPushButton
{
    Q_OBJECT
public:
    explicit DeviceState_Indicator(QWidget *parent, QString Indicator_Color);
    
signals:
    
public slots:
    
};

#endif // DEVICESTATE_INDICATOR_H

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Thank you.

[Spitfire]

Question is, what for you need it to be a button?

Simple row delegate will solve all your issues with painting and combined with cellActivated() signal it will act as button.
What else do you need?