qwinwidget.h

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/* 																										 */
/* File is originally from https://github.com/qtproject/qt-solutions/tree/master/qtwinmigrate/src        */
/* 																										 */
/* It has been modified to support borderless window (HTTTRANSPARENT) & to remove pre Qt5 cruft          */
/* 																										 */
/* 																										 */


// Declaration of the QWinWidget classes

#ifndef QWINWIDGET_H
#define QWINWIDGET_H

#include <QWidget>
#include <QVBoxLayout>

#include "widget.h"
#include "WinNativeWindow.h"

class QWinWidget : public QWidget
{
    Q_OBJECT
public:
    QWinWidget();
    ~QWinWidget();

    void show();
    void center();
    void showCentered();
    void setGeometry(int x, int y, int w, int h);

    HWND getParentWindow() const;

public slots:
    void onMaximizeButtonClicked();
    void onMinimizeButtonClicked();
    void onCloseButtonClicked();

protected:
    void childEvent( QChildEvent *e ) override;
    bool eventFilter( QObject *o, QEvent *e ) override;

    bool focusNextPrevChild(bool next) override;
    void focusInEvent(QFocusEvent *e) override;

    bool nativeEvent(const QByteArray &eventType, void *message, long *result) override;


private:
    QVBoxLayout m_Layout;

    Widget* p_Widget;

    WinNativeWindow* p_ParentWinNativeWindow;
    HWND m_ParentNativeWindowHandle;

    HWND _prevFocus;
    bool _reenableParent;

    int BORDERWIDTH = 6;		//Adjust this as you wish for # of pixels on the edges to show resize handles
    int TOOLBARHEIGHT = 40; //Adjust this as you wish for # of pixels from the top to allow dragging the window

    void saveFocus();
    void resetFocus();



};

#endif // QWINWIDGET_H