1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/*
KPF - Public fileserver for KDE
Copyright 2001 Rik Hemsley (rikkus) <rik@kde.org>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef KPF_BANDWIDTH_GRAPH_H
#define KPF_BANDWIDTH_GRAPH_H
#include <tqwidget.h>
#include <tqmemarray.h>
#include <tqpixmap.h>
#include <tqrect.h>
class TQPainter;
namespace KPF
{
class WebServer;
/**
* Draws a graph of the bandwidth usage of a WebServer over time.
* May also displays an overlayed icon to show the status of a WebServer,
* i.e. whether it is active (no icon,) paused or in contention for a port.
*/
class BandwidthGraph : public TQWidget
{
Q_OBJECT
public:
enum OverlaySelect
{
UseOverlays,
NoOverlays
};
/**
* @param server WebServer to monitor.
* @param overlaySelect if UseOverlays, draw overlay icons to reflect
* server status.
*/
BandwidthGraph
(
WebServer * server,
OverlaySelect overlaySelect,
TQWidget * parent = 0,
const char * name = 0
);
virtual ~BandwidthGraph();
/**
* Set the tooltip showing shared directory name and port
*/
void setTooltip();
/**
* Overridden to provide reasonable default size and shape.
*/
virtual TQSize sizeHint() const;
/**
* Overridden to provide reasonable minimum size and shape.
*/
virtual TQSize minimumSizeHint() const;
/**
* @return the WebServer object given on construction.
*/
WebServer * server();
protected slots:
/**
* Connected to associated WebServer to receive notification of output.
*/
void slotOutput(ulong);
/**
* Connected to associated WebServer to receive notification of port
* contention.
*/
void slotServerContentionChange(bool);
/**
* Connected to associated WebServer to receive notification of pause
* or unpause.
*/
void slotServerPauseChange(bool);
protected:
/**
* Overridden to provide graph drawing.
*/
virtual void paintEvent(TQPaintEvent *);
/**
* Overridden to assist graph drawing.
*/
virtual void resizeEvent(TQResizeEvent *);
/**
* Draw overlay icons to reflect status of associated WebServer.
*/
virtual void drawOverlays(TQPainter &);
/**
* Provides a rectangle in which to draw the graph itself.
*/
virtual TQRect contentsRect() const;
/**
* Called when the status of the associated WebServer changes.
*/
virtual void updateOverlayPixmap();
signals:
/**
* Emitted when the maximum displayed value has changed.
*/
void maximumChanged(ulong);
private:
void updateContents();
TQMemArray<ulong> history_;
WebServer * server_;
TQPixmap buffer_, bgPix_;
ulong max_;
OverlaySelect overlaySelect_;
TQPixmap overlayPixmap_;
};
} // End namespace KPF
#endif
// vim:ts=2:sw=2:tw=78:et
|
