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
|
#include "check-visible.hpp"
#include <QMutex>
#include <QWidget>
#include <QDebug>
static QMutex lock;
static bool visible = true;
#if defined _WIN32
#include "timer.hpp"
#include "macros.hpp"
static Timer timer;
constexpr int visible_timeout = 1000;
constexpr int invisible_timeout = 250;
#include <windows.h>
void set_is_visible(const QWidget& w, bool force)
{
QMutexLocker l(&lock);
if (w.isHidden() || w.windowState() & Qt::WindowMinimized)
{
visible = false;
return;
}
HWND hwnd = (HWND)w.winId();
if (!force && timer.elapsed_ms() < (visible ? visible_timeout : invisible_timeout))
return;
timer.start();
if (RECT r; GetWindowRect(hwnd, &r))
{
const int x = r.left, y = r.top;
const int w = r.right - x, h = r.bottom - y;
const POINT xs[] {
{ x + w - 1, y + 1 },
{ x + 1, y + h - 1 },
{ x + w - 1, y + h - 1 },
{ x + 1, y + 1 },
{ x + w/2, y + h/2 },
};
visible = false;
for (const POINT& pt : xs)
if (WindowFromPoint(pt) == hwnd)
{
visible = true;
break;
}
}
else
{
eval_once(qDebug() << "check-visible: GetWindowRect failed");
visible = true;
}
}
#else
void set_is_visible(const QWidget& w, bool)
{
QMutexLocker l(&lock);
visible = !(w.isHidden() || w.windowState() & Qt::WindowMinimized);
}
#endif
bool check_is_visible()
{
QMutexLocker l(&lock);
return visible;
}
void force_is_visible(bool value)
{
QMutexLocker l(&lock);
visible = value;
}
|
