genode/repos/libports/include/qgenodeviewwidget/qgenodeviewwidget.h
Norman Feske 9823b7dbd0 gui_session: remove C++ exceptions
To maintain ease of use at the client side, the OUT_OF_RAM and
OUT_OF_CAPS results are handled at the 'Gui::Connection' now.

Gui::Connection does not inherit the Gui::Session interface any longer,
which allows for the use of different result types.

Issue #5242
Issue #5245
2024-08-27 15:29:37 +02:00

114 lines
2.2 KiB
C++

/*
* \brief A Qt Widget that shows a Genode GUI view
* \author Christian Prochaska
* \date 2010-08-26
*/
/*
* Copyright (C) 2010-2020 Genode Labs GmbH
*
* This file is part of the Genode OS framework, which is distributed
* under the terms of the GNU Affero General Public License version 3.
*/
#ifndef QGENODEVIEWWIDGET_H
#define QGENODEVIEWWIDGET_H
#include <QtWidgets>
#include <gui_session/connection.h>
class QEmbeddedViewWidget : public QWidget
{
Q_OBJECT
private:
QHash<QScrollBar*, bool> _scrollbars;
int _orig_w = 0;
int _orig_h = 0;
int _orig_buf_x = 0;
int _orig_buf_y = 0;
private slots:
void valueChanged();
void destroyed(QObject *obj = 0);
protected:
struct View_geometry
{
int x, y, w, h, buf_x, buf_y;
};
QEmbeddedViewWidget(QWidget *parent = 0);
virtual ~QEmbeddedViewWidget();
void _orig_geometry(int w, int h, int buf_x, int buf_y)
{
_orig_w = w;
_orig_h = h;
_orig_buf_x = buf_x;
_orig_buf_y = buf_y;
}
View_geometry _calc_view_geometry();
};
class QGenodeViewWidget : public QEmbeddedViewWidget
{
Q_OBJECT
protected:
Gui::Connection *gui;
Gui::Session::View_handle view_handle;
virtual void showEvent(QShowEvent *event);
virtual void hideEvent(QHideEvent *event);
virtual void paintEvent(QPaintEvent *event);
virtual void focusInEvent(QFocusEvent * event);
public:
QGenodeViewWidget(QWidget *parent =0);
~QGenodeViewWidget();
void setGenodeView(Gui::Connection *gui,
Gui::Session::View_handle view_handle,
int buf_x, int buf_y, int w, int h);
};
class QGenodeViewWidgetInterface
{
public:
virtual QWidget *createWidget(QWidget *parent = 0) = 0;
};
Q_DECLARE_INTERFACE(QGenodeViewWidgetInterface, "org.genode.QGenodeViewWidgetInterface")
class QGenodeViewWidgetPlugin : public QObject, public QGenodeViewWidgetInterface
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "org.genode.QGenodeViewWidgetInterface" FILE "qgenodeviewwidget.json")
Q_INTERFACES(QGenodeViewWidgetInterface)
public:
explicit QGenodeViewWidgetPlugin(QObject *parent = 0) : QObject(parent) { }
QWidget *createWidget(QWidget *parent = 0)
{
return new QGenodeViewWidget(parent);
}
};
#endif // QGENODEVIEWWIDGET_H