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6fa02541 | 1 | /* |
b3f22de0 | 2 | * This file is part of the PulseView project. |
6fa02541 JH |
3 | * |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
efdec55a | 17 | * along with this program; if not, see <http://www.gnu.org/licenses/>. |
6fa02541 JH |
18 | */ |
19 | ||
f4e57597 SA |
20 | #ifndef PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWPORT_HPP |
21 | #define PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWPORT_HPP | |
6fa02541 | 22 | |
60d9b99a JS |
23 | #include <boost/optional.hpp> |
24 | ||
119c5c23 | 25 | #include <QPoint> |
d7002724 | 26 | #include <QTimer> |
4b4f1c0d | 27 | #include <QTouchEvent> |
6fa02541 | 28 | |
60d9b99a | 29 | #include "pv/util.hpp" |
40aca27e JH |
30 | #include "viewwidget.hpp" |
31 | ||
6f925ba9 UH |
32 | using std::shared_ptr; |
33 | using std::vector; | |
34 | ||
e9c41f8c | 35 | class QPainter; |
3e46726a | 36 | class QPaintEvent; |
2b81ae46 | 37 | class Session; |
009e1503 | 38 | |
cdf7bea7 | 39 | namespace pv { |
f4e57597 | 40 | namespace views { |
1573bf16 | 41 | namespace trace { |
cdf7bea7 JH |
42 | |
43 | class View; | |
44 | ||
40aca27e | 45 | class Viewport : public ViewWidget |
6fa02541 JH |
46 | { |
47 | Q_OBJECT | |
e3f65ace | 48 | |
6fa02541 | 49 | public: |
cdf7bea7 | 50 | explicit Viewport(View &parent); |
d7002724 | 51 | |
e9e4e5e7 JH |
52 | /** |
53 | * Gets the first view item which has a hit-box that contains @c pt . | |
54 | * @param pt the point to search with. | |
55 | * @return the view item that has been found, or and empty | |
56 | * @c shared_ptr if no item was found. | |
57 | */ | |
6f925ba9 | 58 | shared_ptr<ViewItem> get_mouse_over_item(const QPoint &pt); |
e9e4e5e7 | 59 | |
d9b55cc8 SA |
60 | private: |
61 | /** | |
62 | * Indicates when a view item is being hovered over. | |
63 | * @param item The item that is being hovered over, or @c nullptr | |
64 | * if no view item is being hovered over. | |
65 | */ | |
119c5c23 | 66 | void item_hover(const shared_ptr<ViewItem> &item, QPoint pos); |
d9b55cc8 | 67 | |
28290534 JH |
68 | /** |
69 | * Sets this item into the dragged state. | |
70 | */ | |
71 | void drag(); | |
72 | ||
73 | /** | |
74 | * Drag the background by the delta offset. | |
75 | * @param delta the drag offset in pixels. | |
76 | */ | |
77 | void drag_by(const QPoint &delta); | |
78 | ||
79 | /** | |
80 | * Sets this item into the un-dragged state. | |
81 | */ | |
82 | void drag_release(); | |
83 | ||
e9e4e5e7 JH |
84 | /** |
85 | * Gets the items in the view widget. | |
86 | */ | |
6f925ba9 | 87 | vector< shared_ptr<ViewItem> > items(); |
e9e4e5e7 | 88 | |
c9743553 JH |
89 | /** |
90 | * Handles touch begin update and end events. | |
91 | * @param e the event that triggered this handler. | |
92 | */ | |
520362f8 | 93 | bool touch_event(QTouchEvent *event); |
c9743553 JH |
94 | |
95 | private: | |
3e46726a | 96 | void paintEvent(QPaintEvent *event); |
d7002724 | 97 | |
d9ea9628 UH |
98 | void mouseDoubleClickEvent(QMouseEvent *event); |
99 | void wheelEvent(QWheelEvent *event); | |
28290534 | 100 | |
009e1503 | 101 | private: |
60d9b99a | 102 | boost::optional<pv::util::Timestamp> drag_offset_; |
838d0522 | 103 | int drag_v_offset_; |
4b4f1c0d | 104 | |
8dbbc7f0 JH |
105 | double pinch_offset0_; |
106 | double pinch_offset1_; | |
107 | bool pinch_zoom_active_; | |
6fa02541 JH |
108 | }; |
109 | ||
1573bf16 | 110 | } // namespace trace |
f4e57597 | 111 | } // namespace views |
cdf7bea7 JH |
112 | } // namespace pv |
113 | ||
f4e57597 | 114 | #endif // PULSEVIEW_PV_VIEWS_TRACEVIEW_VIEWPORT_HPP |