mirror of
https://github.com/f4exb/sdrangel.git
synced 2024-11-25 09:18:54 -05:00
76 lines
3.6 KiB
C++
76 lines
3.6 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2022-2023 Jon Beniston, M7RCE <jon@beniston.com> //
|
|
// Copyright (C) 2022 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation as version 3 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef SDRGUI_FRAMELESSWINDOWRESIZER_H_
|
|
#define SDRGUI_FRAMELESSWINDOWRESIZER_H_
|
|
|
|
#include "export.h"
|
|
|
|
#include <QEvent>
|
|
#include <QMouseEvent>
|
|
#include <QWidget>
|
|
|
|
// Class to allow frameless windows (Qt::FramelessWindowHint) to be resized
|
|
// by clicking and dragging on the border
|
|
// The window needs to forward the mousePressEvent, mouseReleaseEvent, mouseMoveEvent
|
|
// and leaveEvent events to this class
|
|
// Child widgets should have mouse tracking enabled, so cursor can be controlled properly
|
|
// This can be achieved by calling enableChildMouseTracking
|
|
class SDRGUI_API FramelessWindowResizer : public QObject
|
|
{
|
|
Q_OBJECT
|
|
private:
|
|
QWidget *m_widget; // Widget to be resized
|
|
bool m_vResizing; // Whether we are resizing vertically
|
|
bool m_hResizing;
|
|
bool m_vMove; // Whether we are moving vertically
|
|
bool m_hMove;
|
|
QPoint m_mouseOffsetToPos;// Offset from mouse position to top/left of window
|
|
QPoint m_initialMousePos; // Position of mouse when resize started
|
|
QRect m_initRect; // Dimensions of widget when resize started
|
|
QPoint m_origBottomRight; // So we do not "push" the widget when resizing from top or left
|
|
const QCursor *m_cursor; // Current cursor
|
|
|
|
const QCursor m_vCursor; // Ideally static, but when run:
|
|
const QCursor m_hCursor; // QPixmap: Must construct a QGuiApplication before a QPixmap
|
|
const QCursor m_bCursor;
|
|
const QCursor m_fCursor;
|
|
|
|
public:
|
|
FramelessWindowResizer(QWidget *widget);
|
|
void enableChildMouseTracking();
|
|
void mousePressEvent(QMouseEvent* event);
|
|
void mouseReleaseEvent(QMouseEvent* event);
|
|
void mouseMoveEvent(QMouseEvent* event);
|
|
void leaveEvent(QEvent* event);
|
|
|
|
const int m_gripSize = 2; // Size in pixels of the border of the window that can be clicked in to resize it
|
|
|
|
protected:
|
|
bool eventFilter(QObject *obj, QEvent *event) override;
|
|
bool mouseOnTopBorder(QPoint pos) const;
|
|
bool mouseOnBottomBorder(QPoint pos) const;
|
|
bool mouseOnLeftBorder(QPoint pos) const;
|
|
bool mouseOnRightBorder(QPoint pos) const;
|
|
bool mouseOnBorder(QPoint pos) const;
|
|
void setCursor(const QCursor &cursor);
|
|
void clearCursor();
|
|
};
|
|
|
|
#endif // SDRGUI_FRAMELESSWINDOWRESIZER_H_
|