Drag and drop a file after a first file

[bozo6919]

I actually try to use drag and drop.
But With my code, I can open one file, and later, when I want to drag and drop another file, my drag and drop method doesn't work.

void window::dragEnterEvent(QDragEnterEvent *event)
{
    qDebug("New event :");
    if (event->mimeData()->hasUrls()) {
        event->acceptProposedAction();
        qDebug("event accept.");
    } else {
        event->ignore();
        qDebug("event refused.");
    }
}

void window::dropEvent(QDropEvent *event)
{
    foreach(const QUrl &url, event->mimeData()->urls())
        open_file(url.toLocalFile());
    event->accept();
}

I have just these two functions for my drag and drop method. The output is :
New event : --> for the first file
event accepted.
And nothing for the second file after loaded the first.

Could someone help me?

PS: Sorry for my English, I'm french.

[bozo6919]

@SGaist said in Drag and drop a file after a first file:

Nothing obvious comes to mind reading your code.

Ok ok thanks

[SGaist]

Hi and welcome to devnet,

What version of Qt are you using ?
What Os are you running ?

[bozo6919]

hi @SGaist
thanks for your answer.
I'm running in Windows 10 and I am using Qt 5.11.1

[SGaist]

Can you show your complete widget code ?

[bozo6919]

main.cpp

#include "logiciel.h"

void open_file(QString path);

void window::dragEnterEvent(QDragEnterEvent *event)
{
    qDebug("New event :");
    if (event->mimeData()->hasUrls()) {
        event->acceptProposedAction();
        qDebug("event accept.");
    } else {
        event->ignore();
        qDebug("event refused.");
    }
}

void window::dropEvent(QDropEvent *event)
{
    foreach(const QUrl &url, event->mimeData()->urls())
        open_file(url.toLocalFile());
    event->accept();
}

window::window(std::string version_number)
{
    std::string title = "Text Editor " + version_number;
    QWidget *main_window = new QWidget;
    setCentralWidget(main_window);

    infoLabel = new QLabel(tr("<i>Create, open or<br/>drag and drop a file.</i>"));
    infoLabel->setFrameStyle(QFrame::StyledPanel | QFrame::Sunken);
    infoLabel->setAlignment(Qt::AlignCenter);

    QVBoxLayout *layout = new QVBoxLayout;
    layout->setMargin(5);
    layout->addWidget(infoLabel);
    main_window->setLayout(layout);

    createActions();
    createMenus();

    text = NULL;

    statusBar()->showMessage("");
    setWindowTitle(tr(title.c_str()));
    setMinimumSize(200, 200);
    resize(1080, 960);
    setAcceptDrops(true);
}

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

    window window("1.3");
    window.show();
    return app.exec();
}

window.h

#ifndef WINDOW_H
#define WINDOW_H

#include <QtWidgets>
#include <text.h>

class window : public QMainWindow
{
    Q_OBJECT

    public:
    window(std::string version_number);
    QAction *create_action_for_this_menu(char *name_action, QMenu *menu);

    public slots:
    //file menu
    int create_new_file(void);
    void open_an_empty_file(void);
    void save_file(void);
    void save_file_as(void);
    //file edit
    void left_alignment(void);
    void right_alignment(void);
    void justify_alignment(void);
    void center_alignment(void);
    void undo(void);
    void redo(void);
    void cut(void);
    void copy(void);
    void paste(void);
    void about(void);
    void put_text_in_bold(bool ok);
    void put_text_in_italic(bool ok);
    void put_text_in_underline(bool ok);
    void open_color();

    protected:
    void dragEnterEvent(QDragEnterEvent *event);
    void dropEvent(QDropEvent *event);

    private:
    //functions
    void open_file(QString path);
    void createActions();
    void createMenus();
    //variables
    text_t *text;
    QMenu *fileMenu;
    QMenu *saveMenu;
    QMenu *editMenu;
    QMenu *formatMenu;
    QMenu *helpMenu;
    QActionGroup *alignmentGroup;
    QActionGroup *languageGroup;
    QAction *newAct;
    QAction *openAct;
    QAction *saveAct;
    QAction *saveAsAct;
    QAction *exitAct;
    QAction *undoAct;
    QAction *redoAct;
    QAction *cutAct;
    QAction *copyAct;
    QAction *pasteAct;
    QAction *boldAct;
    QAction *italicAct;
    QAction *underlineAct;
    QAction *colorAct;
    QAction *leftAlignAct;
    QAction *rightAlignAct;
    QAction *justifyAct;
    QAction *centerAct;
    QAction *aboutAct;
    QAction *aboutQtAct;
    QAction *frenchAct;
    QAction *englishAct;
    QLabel *infoLabel;
};

#endif

Remains are not very usefull for my problem I think

[SGaist]

I don't have a Windows at hand, but I can confirm that the mouse logic works on macOS (with a few minor correction as your code can't be built as is).

[bozo6919]

@SGaist ok, but do you see something who can explain why drag and drop doesn't work after one file drop ?

[SGaist]

Nothing obvious comes to mind reading your code.

[bozo6919]

@SGaist said in Drag and drop a file after a first file:

Nothing obvious comes to mind reading your code.

Ok ok thanks