Getting problem in drag and drop of thumbnail image inside the image view?

[anil_arise]

@amarism your code is working just change this line
painter.drawPixmap(500, 250, m_pixmap); beccause out of range
use in widget range
painter.drawPixmap(100, 100, m_pixmap);

[amarism]

@anil_arise still this one not working

[anil_arise]

@amarism can you show your widget structure. where are you design.?

[amarism]

@anil_arise I have added new file as QvtkOpenGLWidgetDrag.cpp/.h and inherit the QOpenGLWidget and i will displaying everything through mainwindiw.cpp. So, I will add the drag class inside the mainwindow.h. But were i will calling this file QvtkOpenGLWidgetDrag.cpp/.h throung mainwindow.cpp

[anil_arise]

@amarism when your are create and initialize your widget in mainwindow.cpp

example
auto *viewTopLeft = new OpenGlWidget(this);
layoutGrid->addWidget(viewTopLeft, 0, 0);

[amarism]

@anil_arise I will directly create view port through Qt. statistically creating port not dynamically

[anil_arise]

@amarism @amarism it should be create dynamically. and add to layout

[amarism]

@anil_arise everything i am take as a static inside the QT so how i am going to create dynamically on view port. inside the view port i am added slider also

[anil_arise]

@amarism Again I said ,create and initialization of these 4 widgets you can use dynamically in your project. you can also add slider dynamically.

[amarism]

@anil_arise Can i do the same thing in statically or not

[anil_arise]

@amarism No , How can you connect your statically created OpenGlWidget to dynamically created OpenGlWidget class..
try this mainwindow.cpp

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <openglwidget.h>
#include <QSlider>

MainWindow::MainWindow(QWidget *parent) :
QMainWindow(parent),
ui(new Ui::MainWindow)
{
ui->setupUi(this);
auto *viewTopLeft = new OpenGlWidget(this);
auto *viewTopRight = new OpenGlWidget(this);
auto *viewBottomLeft = new OpenGlWidget(this);
auto *viewBottomRight = new OpenGlWidget(this);

ui->listWidget->addItem(new QListWidgetItem(QIcon(":/images/red.jpg"), tr("Item 1")));
ui->listWidget->addItem(new QListWidgetItem(QIcon(":/images/green.jpg"), tr("Item 2")));
ui->listWidget->addItem(new QListWidgetItem(QIcon(":/images/stop.png"), tr("Item 3")));
ui->listWidget->setViewMode(QListWidget::IconMode);
ui->listWidget->setIconSize(QSize(50, 50));
ui->listWidget->setGridSize(QSize(65, 65));
ui->listWidget->setMaximumWidth(100); //already set by statically


QSlider *slider1=new QSlider;
slider1->setRange(0,100);
slider1 ->setOrientation(Qt::Horizontal);
QSlider *slider2=new QSlider;
slider2->setRange(0,100);
slider2 ->setOrientation(Qt::Horizontal);
QSlider *slider3=new QSlider;
slider3->setRange(0,100);
slider3 ->setOrientation(Qt::Horizontal);
QSlider *slider4=new QSlider;
slider4->setRange(0,100);
slider4 ->setOrientation(Qt::Horizontal);

ui->gridLayout->addWidget(viewTopLeft, 0, 0);
ui->gridLayout->addWidget(viewTopRight, 0, 1);
ui->gridLayout->addWidget(slider1, 1, 0);
ui->gridLayout->addWidget(slider2, 1, 1);
ui->gridLayout->addWidget(viewBottomLeft, 2, 0);
ui->gridLayout->addWidget(viewBottomRight, 2, 1);
ui->gridLayout->addWidget(slider3, 3, 0);
ui->gridLayout->addWidget(slider4, 3, 1);

}

MainWindow::~MainWindow()
{
delete ui;
}

[amarism]

@anil_arise This one all are there in my ui just can i write only drag n drop event

[anil_arise]

@amarism just replace your static openGLWidget with thisss

auto *viewTopLeft = new OpenGlWidget(this);
auto *viewTopRight = new OpenGlWidget(this);
auto *viewBottomLeft = new OpenGlWidget(this);
auto *viewBottomRight = new OpenGlWidget(this);

[amarism]

@anil_arise But how i will set the position for every view port

[anil_arise]

@amarism by using LAYOUT

[amarism]

@anil_arise Sir i am try to change . Not able place properly OpenGLWidget and slider. This is my layout viewer.

How to place view in proper place.

[anil_arise]

@amarism
auto *viewTopLeft = new OpenGlWidget(this);
auto *viewTopRight = new OpenGlWidget(this);
auto *viewBottomLeft = new OpenGlWidget(this);
auto *viewBottomRight = new OpenGlWidget(this);

QSlider *slider1=new QSlider;
slider1->setRange(0,100);
slider1 ->setOrientation(Qt::Horizontal);
QSlider *slider2=new QSlider;
slider2->setRange(0,100);
slider2 ->setOrientation(Qt::Horizontal);
QSlider *slider3=new QSlider;
slider3->setRange(0,100);
slider3 ->setOrientation(Qt::Horizontal);
QSlider *slider4=new QSlider;
slider4->setRange(0,100);
slider4 ->setOrientation(Qt::Horizontal);

ui->gridLayout->addWidget(viewTopLeft, 0, 0);
ui->gridLayout->addWidget(viewTopRight, 0, 1);
ui->gridLayout->addWidget(slider1, 1, 0);
ui->gridLayout->addWidget(slider2, 1, 1);
ui->gridLayout->addWidget(viewBottomLeft, 2, 0);
ui->gridLayout->addWidget(viewBottomRight, 2, 1);
ui->gridLayout->addWidget(slider3, 3, 0);
ui->gridLayout->addWidget(slider4, 3, 1);

i try this it's working .. good

set Orientation of slider ...