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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2013 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 | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #ifndef PULSEVIEW_PV_VIEW_HEADERITEM_H | |
22 | #define PULSEVIEW_PV_VIEW_HEADERITEM_H | |
23 | ||
24 | #include "selectableitem.h" | |
25 | ||
26 | namespace pv { | |
27 | namespace view { | |
28 | ||
29 | class RowItemOwner; | |
30 | ||
31 | class RowItem : public SelectableItem | |
32 | { | |
33 | Q_OBJECT | |
34 | ||
35 | public: | |
36 | /** | |
37 | * Constructor. | |
38 | */ | |
39 | RowItem(); | |
40 | ||
41 | /** | |
42 | * Returns true if the item is visible and enabled. | |
43 | */ | |
44 | virtual bool enabled() const = 0; | |
45 | ||
46 | /** | |
47 | * Gets the vertical layout offset of this signal. | |
48 | */ | |
49 | int v_offset() const; | |
50 | ||
51 | /** | |
52 | * Sets the vertical layout offset of this signal. | |
53 | */ | |
54 | void set_v_offset(int v_offset); | |
55 | ||
56 | /** | |
57 | * Gets the owner this trace in the view trace hierachy. | |
58 | */ | |
59 | pv::view::RowItemOwner* owner() const; | |
60 | ||
61 | /** | |
62 | * Sets the owner this trace in the view trace hierachy. | |
63 | * @param The new owner of the trace. | |
64 | */ | |
65 | void set_owner(pv::view::RowItemOwner *owner); | |
66 | ||
67 | /** | |
68 | * Gets the y-offset of the axis. | |
69 | */ | |
70 | int get_y() const; | |
71 | ||
72 | /** | |
73 | * Gets the drag point of the row item. | |
74 | */ | |
75 | QPoint point() const; | |
76 | ||
77 | /** | |
78 | * Paints the background layer of the trace with a QPainter | |
79 | * @param p the QPainter to paint into. | |
80 | * @param left the x-coordinate of the left edge of the signal | |
81 | * @param right the x-coordinate of the right edge of the signal | |
82 | **/ | |
83 | virtual void paint_back(QPainter &p, int left, int right); | |
84 | ||
85 | /** | |
86 | * Paints the mid-layer of the trace with a QPainter | |
87 | * @param p the QPainter to paint into. | |
88 | * @param left the x-coordinate of the left edge of the signal | |
89 | * @param right the x-coordinate of the right edge of the signal | |
90 | **/ | |
91 | virtual void paint_mid(QPainter &p, int left, int right); | |
92 | ||
93 | /** | |
94 | * Paints the foreground layer of the trace with a QPainter | |
95 | * @param p the QPainter to paint into. | |
96 | * @param left the x-coordinate of the left edge of the signal | |
97 | * @param right the x-coordinate of the right edge of the signal | |
98 | **/ | |
99 | virtual void paint_fore(QPainter &p, int left, int right); | |
100 | ||
101 | /** | |
102 | * Paints the signal label. | |
103 | * @param p the QPainter to paint into. | |
104 | * @param right the x-coordinate of the right edge of the header | |
105 | * area. | |
106 | * @param hover true if the label is being hovered over by the mouse. | |
107 | */ | |
108 | virtual void paint_label(QPainter &p, int right, bool hover) = 0; | |
109 | ||
110 | /** | |
111 | * Computes the outline rectangle of a label. | |
112 | * @param right the x-coordinate of the right edge of the header | |
113 | * area. | |
114 | * @return Returns the rectangle of the signal label. | |
115 | */ | |
116 | virtual QRectF label_rect(int right) const = 0; | |
117 | ||
118 | public: | |
119 | virtual void hover_point_changed(); | |
120 | ||
121 | Q_SIGNALS: | |
122 | void appearance_changed(); | |
123 | ||
124 | protected: | |
125 | pv::view::RowItemOwner *_owner; | |
126 | ||
127 | int _v_offset; | |
128 | }; | |
129 | ||
130 | } // namespace view | |
131 | } // namespace pv | |
132 | ||
133 | #endif // PULSEVIEW_PV_VIEW_HEADERITEM_H |