[solved] Layout Management in a Groupbox

[bc913]

Hi all,

I have an mainwindow appllication with 6 groupboxes. I would like to insert a group of lineedits (their corresponding labels), radibuttons and 2 pushbuttons. But in terms of layout management I have the following problems:

a. Generally speaking, how can control the positions of the each widget in the groupbox? I can not locate any item to anywhere that I want. Which classes or functions are used to get the control?
b. I try to control the layout with Qgridlayout and I try to locate each item(widget) with controlling row and cols. But i think it is not efficient.

1. In my application, even I put the headers(Qlabel) in the 1st row of the gridlayout, there is a gap between them and 2nd row of the layouts. It should be closer to them.
2. Even if I try to put the cancel button to the bottom right, cancel button is now on the top left.
3. M label should be at the left side of the lineedit but it is at the right side of the okbutton.
   4} Also, except the buttons, I want to locate the labels and lineedits to more upper left but my app still alligns them to bottom. How can i get them upper and left?

Thanks in advance,

@//bcomp_main.cpp
#include <QApplication>

#include "bcomp_mainwindow.h"

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

Bcomp.showMaximized();
return app.exec();

}@

@//TabModule.h
#ifndef TABMODULE_H
#define TABMODULE_H

#include <QMainWindow>
#include <QWidget>
#include <QTabWidget>
#include <QGroupBox>
#include <QGridLayout>
#include <QLabel>
#include <QLineEdit>

class TabModule {
public:
enum { NumTabs = 3};
QTabWidget *tabWidget; //tab Widgets
QWidget *tabs[NumTabs];
QGridLayout *gridLayout;
QGroupBox *groupbox[6];
//QLabel *labels[i];
};
#endif // TABMODULE_H
@

@//bcomp_mainwindow.h
#ifndef BCOMP_MAINWINDOW_H
#define BCOMP_MAINWINDOW_H
#include <QMainWindow>
#include <QWidget>
#include <QMenuBar>
#include <QToolBar>
#include <QStatusBar>
#include "TabModule.h"

class bcomp_MainWindow : public QMainWindow
{
Q_OBJECT
public:
bcomp_MainWindow();

private:
// members
TabModule *member;
QWidget *centralWidget;
QMenuBar *menuBar;
QToolBar *mainToolBar;
QStatusBar *statusBar;

//functions
void mainSetup();

signals:

public slots:

};

#endif // BCOMP_MAINWINDOW_H
@

@//bcomp_mainwindow.cpp
#include <QtGui>
#include "bcomp_mainwindow.h"

bcomp_MainWindow::bcomp_MainWindow( )
{
mainSetup(); // setup main items
}

void :: bcomp_MainWindow :: mainSetup ()
{
//Initial Size
this -> resize(863, 423);
this -> setMinimumSize(QSize(863, 423));
this -> setMaximumSize(QSize(16777215, 16777215));
//Tabs
member = new TabModule();
member -> tabWidget = new QTabWidget();
for (int i = 0; i < member -> NumTabs; ++i) {
member -> tabs[i] = new QWidget();
member -> tabWidget->addTab(member -> tabs[i], QString(tr("Button %1").arg(i + 1)));}
setCentralWidget(member -> tabWidget);

//Groupboxes for tab1
for (int i = 0; i <6 ; ++i){
    member -> groupbox[i] = new QGroupBox (member -> tabs[0]);
    member -> groupbox[i] -> setTitle(QString(tr("Grup %1").arg(i + 1)));}
member -> gridLayout = new QGridLayout(member -> tabs[0]);
member -> gridLayout -> setSpacing(20);
member -> gridLayout -> addWidget(member -> groupbox[0] , 0, 0 ,1 ,2);
member -> gridLayout -> addWidget(member -> groupbox[1] , 1, 0 ,9 ,2);
member -> gridLayout -> addWidget(member -> groupbox[2] , 0, 2 ,7 ,3);
member -> gridLayout -> addWidget(member -> groupbox[3] , 7, 2 ,3 ,3);
member -> gridLayout -> addWidget(member -> groupbox[4] , 0, 5 ,5 ,5);
member -> gridLayout -> addWidget(member -> groupbox[5] , 5, 5 ,5 ,5);
member -> tabs[0] -> setLayout(member -> gridLayout);
//Group of text edidors and labels in groupbox 3
QString names [18] = {"Header1", "Header2","A","B","C","D","E","F","G","H","I","J","K","L","M","N","R","P"};
QGridLayout *gLayout = new QGridLayout (member -> groupbox[2]);
QLabel *labels[14];
QLineEdit *inputbox[16];
QRadioButton *radiobutton1 = new QRadioButton(names[16],member -> groupbox[2]);
QRadioButton *radiobutton2 = new QRadioButton(names[17],member -> groupbox[2]);
QPushButton *okbutton = new QPushButton(member -> groupbox[2]);
QPushButton *canbutton = new QPushButton(member -> groupbox[2]);

// QHBoxLayout *hLayout = new QHBoxLayout();

for(int i = 0; i < 16; ++i){
    labels[i] = new QLabel(names[i],member -> groupbox[2]);
    if (i < 14)
        inputbox[i] = new QLineEdit(member -> groupbox[2]);
}
for(int i = 0; i < 26; ++i){
    if (i == 0) //Header 1 (1st row 1 st col)
        gLayout -> addWidget(labels[i], 0,0,1,5);
    else if (i == 1) //Header 2 (1st row 2nd col)
        gLayout -> addWidget(labels[i], 0,5,1,5);
    else if (i >= 2 && i < 8) //1st column
        gLayout -> addWidget(labels[i], i-1,0,1,1);
    else if (i >= 8 && i < 14) //2nd column
        gLayout -> addWidget(inputbox[i-8], i-7,1,1,4);
    else if (i >= 14 && i < 20) // 3rd col
        gLayout -> addWidget(inputbox[i-8], i-13,5,1,4);
    else if (i >= 20 && i < 26) //4 th coll
        gLayout -> addWidget(labels[i-12], i-19,9,1,1);
}
gLayout -> addWidget(radiobutton1, 7,0,1,2);
gLayout -> addWidget(radiobutton2, 7,2,1,2);
gLayout -> addWidget(labels[14], 8,0,1,1);
gLayout -> addWidget(inputbox[12], 8,1,1,4);
gLayout -> addWidget(inputbox[13], 8,5,1,4);
gLayout -> addWidget(labels[15], 8,9,1,1);
gLayout -> addWidget(okbutton, 9,10,1,1);
gLayout -> addWidget(canbutton, 9,11,1,1);

// hLayout -> addWidget(okbutton);
// hLayout -> addWidget(canbutton);
// gLayout -> addLayout(hLayout, 10,0,1,1);
//gLayout -> setMargin(20);
//gLayout -> setSpacing(10);
member ->groupbox[2] -> setLayout(gLayout);
}
@

[SGaist]

Hi,

Going through your code, I find it very hard to follow. I think you should rather create one widget derived e.g. from QGroupBox that contains the user interface you need and an interface to retrieve the data your. You can then re-use that widget as much as you need. It will make your code cleaner and easier to maintain.

For the line edit part since each has a label, why not use a QFormLayout ? If your buttons are ok/cancel, you could use a QDialogButtonBox which will provide you with a ready made platform aware group of button. You can use multiple layouts to setup your widget.

Hope it helps

[bc913]

Yes, it works well.

I did as you said and it's done via using QFormLayout.

Thanks,

[SGaist]

You're welcome !

Since you have it working now, can you please update the thread title prepending [solved] so other forum users may know a solution has been found :)