1// Copyright (C) 2016 The Qt Company Ltd.
2// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
3
4#ifndef QPIXELTOOL_H
5#define QPIXELTOOL_H
6
7#include <qwidget.h>
8#include <qpixmap.h>
9
10QT_BEGIN_NAMESPACE
11
12class QPixelTool : public QWidget
13{
14 Q_OBJECT
15public:
16 explicit QPixelTool(QWidget *parent = nullptr);
17 ~QPixelTool();
18
19 void setPreviewImage(const QImage &image);
20
21 QSize sizeHint() const override;
22
23public slots:
24 void setZoom(int zoom);
25 void setGridSize(int gridSize);
26 void toggleGrid();
27 void toggleFreeze();
28 void setZoomVisible(bool visible);
29#if QT_CONFIG(clipboard)
30 void copyToClipboard();
31 void copyColorToClipboard();
32 void copyScreenShotToClipboard();
33 void copyScreenInfoToClipboard();
34#endif
35 void saveToFile();
36 void increaseGridSize() { setGridSize(m_gridSize + 1); }
37 void decreaseGridSize() { setGridSize(m_gridSize - 1); }
38 void increaseZoom();
39 void decreaseZoom();
40 void aboutPixelTool();
41
42protected:
43 void timerEvent(QTimerEvent *event) override;
44 void paintEvent(QPaintEvent *event) override;
45 void keyPressEvent(QKeyEvent *event) override;
46 void keyReleaseEvent(QKeyEvent *event) override;
47 void resizeEvent(QResizeEvent *event) override;
48 void mouseMoveEvent(QMouseEvent *event) override;
49 void mousePressEvent(QMouseEvent *event) override;
50 void mouseReleaseEvent(QMouseEvent *event) override;
51 void contextMenuEvent(QContextMenuEvent *event) override;
52
53private:
54 void grabScreen();
55 void startZoomVisibleTimer();
56 void startGridSizeVisibleTimer();
57 QString aboutText() const;
58
59 bool m_freeze = false;
60 bool m_displayZoom = false;
61 bool m_displayGridSize = false;
62 bool m_mouseDown = false;
63 bool m_autoUpdate;
64 bool m_preview_mode = false;
65
66 int m_gridActive;
67 int m_zoom;
68 int m_gridSize;
69 int m_lcdMode;
70
71 int m_updateId = 0;
72 int m_displayZoomId = 0;
73 int m_displayGridSizeId = 0;
74
75 QRgb m_currentColor = 0;
76
77 QPoint m_lastMousePos;
78 QPoint m_dragStart;
79 QPoint m_dragCurrent;
80 QPixmap m_buffer;
81
82 QSize m_initialSize;
83
84 QImage m_preview_image;
85};
86
87QT_END_NAMESPACE
88
89#endif // QPIXELTOOL_H
90

source code of qttools/src/pixeltool/qpixeltool.h