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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the test suite of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef ITEMWINDOW_H
#define ITEMWINDOW_H
#include <QtGui/QKeySequence>
#include <QtGui/QRasterWindow>
QT_USE_NAMESPACE
// ItemWindow: Primitive UI item classes for use with a ItemWindow based
// on QRasterWindow without widgets allowing a simple UI without widgets.
// Basic item to be used in a ItemWindow
class Item : public QObject {
Q_OBJECT
public:
explicit Item(QObject *parent = nullptr) : QObject(parent) {}
virtual void paint(QPainter &painter) = 0;
virtual void mouseEvent(QMouseEvent *) {}
virtual void keyEvent(QKeyEvent *) {}
};
// Positionable text item
class TextItem : public Item {
Q_OBJECT
public:
explicit TextItem(const QString &text, const QRect &rect, const QColor &col,
QObject *parent = nullptr)
: Item(parent), m_text(text), m_rect(rect), m_col(col) {}
void paint(QPainter &painter) override;
QRect rect() const { return m_rect; }
private:
const QString m_text;
const QRect m_rect;
const QColor m_col;
};
// "button" item
class ButtonItem : public TextItem {
Q_OBJECT
public:
explicit ButtonItem(const QString &text, const QRect &rect, const QColor &col,
QObject *parent = nullptr)
: TextItem(text, rect, col, parent), m_shortcut(0) {}
void mouseEvent(QMouseEvent *mouseEvent) override;
void keyEvent(QKeyEvent *keyEvent) override;
int shortcut() const { return m_shortcut; }
void setShortcut(int shortcut) { m_shortcut = shortcut; }
signals:
void clicked();
private:
int m_shortcut;
};
#define PROPAGATE_EVENT(windowHandler, eventClass, itemHandler) \
void windowHandler(eventClass *e) override \
{ \
foreach (Item *i, m_items) \
i->itemHandler(e); \
}
class ItemWindow : public QRasterWindow {
Q_OBJECT
public:
explicit ItemWindow(QWindow *parent = nullptr) : QRasterWindow(parent), m_background(Qt::white) {}
void addItem(Item *item) { m_items.append(item); }
QColor background() const { return m_background; }
void setBackground(const QColor &background) { m_background = background; }
protected:
void paintEvent(QPaintEvent *) override;
PROPAGATE_EVENT(mousePressEvent, QMouseEvent, mouseEvent)
PROPAGATE_EVENT(mouseReleaseEvent, QMouseEvent, mouseEvent)
PROPAGATE_EVENT(mouseDoubleClickEvent, QMouseEvent, mouseEvent)
PROPAGATE_EVENT(mouseMoveEvent, QMouseEvent, mouseEvent)
PROPAGATE_EVENT(keyPressEvent, QKeyEvent, keyEvent)
PROPAGATE_EVENT(keyReleaseEvent, QKeyEvent, keyEvent)
private:
QList<Item *> m_items;
QColor m_background;
};
#endif // ITEMWINDOW_H
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