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
165
166
|
// SPDX-FileCopyrightText: 2022 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: LGPL-3.0-or-later
#include <QGuiApplication>
#include <QWindow>
#include <QX11Info>
#include <QMouseEvent>
#include <qpa/qplatformwindow.h>
#include <xcb/xcb.h>
void setWindowProperty(quint32 WId, xcb_atom_t propAtom, xcb_atom_t typeAtom, const void *data, quint32 len, uint8_t format)
{
xcb_connection_t* conn = QX11Info::connection();
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, WId, propAtom, typeAtom, format, len, data);
xcb_flush(conn);
}
void clearWindowProperty(quint32 WId, xcb_atom_t propAtom)
{
xcb_delete_property_checked(QX11Info::connection(), WId, propAtom);
}
xcb_atom_t internAtom(xcb_connection_t *connection, const char *name, bool only_if_exists)
{
if (!name || *name == 0)
return XCB_NONE;
xcb_intern_atom_cookie_t cookie = xcb_intern_atom(connection, only_if_exists, strlen(name), name);
xcb_intern_atom_reply_t *reply = xcb_intern_atom_reply(connection, cookie, 0);
if (!reply)
return XCB_NONE;
xcb_atom_t atom = reply->atom;
free(reply);
return atom;
}
xcb_atom_t internAtom(const char *name, bool only_if_exists)
{
return internAtom(QX11Info::connection(), name, only_if_exists);
}
bool isSupported(xcb_atom_t targetAtom)
{
// get _NET_SUPPORTED from root window
QVector<xcb_atom_t> net_wm_atoms;
xcb_window_t root = QX11Info::appRootWindow();
int offset = 0;
int remaining = 0;
xcb_connection_t *xcb_connection = QX11Info::connection();
auto _net_supported = internAtom(QT_STRINGIFY(_NET_SUPPORTED), false);
do {
xcb_get_property_cookie_t cookie = xcb_get_property(xcb_connection, false, root, _net_supported,
XCB_ATOM_ATOM, offset, 1024);
xcb_get_property_reply_t *reply = xcb_get_property_reply(xcb_connection, cookie, NULL);
if (!reply)
break;
remaining = 0;
if (reply->type == XCB_ATOM_ATOM && reply->format == 32) {
int len = xcb_get_property_value_length(reply)/sizeof(xcb_atom_t);
xcb_atom_t *atoms = (xcb_atom_t *)xcb_get_property_value(reply);
int s = net_wm_atoms.size();
net_wm_atoms.resize(s + len);
memcpy(net_wm_atoms.data() + s, atoms, len*sizeof(xcb_atom_t));
remaining = reply->bytes_after;
offset += len;
}
free(reply);
} while (remaining > 0);
return net_wm_atoms.contains(targetAtom);
}
bool setNoTitlebar(quint32 WId, bool on)
{
xcb_atom_t _deepin_no_titlebar = internAtom(QT_STRINGIFY(_DEEPIN_NO_TITLEBAR), false);
if (!isSupported(_deepin_no_titlebar))
return false;
quint8 value = on;
setWindowProperty(WId, _deepin_no_titlebar, XCB_ATOM_CARDINAL, &value, 1, 8);
// force enable window decorations, becouse we need the window shadow and border, its contains in decorations.
xcb_atom_t _deepin_force_decorate = internAtom(QT_STRINGIFY(_DEEPIN_FORCE_DECORATE), false);
if (on) {
quint8 value = on;
setWindowProperty(WId, _deepin_force_decorate, XCB_ATOM_CARDINAL, &value, 1, 8);
} else {
clearWindowProperty(WId, _deepin_force_decorate);
}
return true;
}
QObject *createNativeSettingsFor(QWindow *window)
{
// The platform function in dxcb plugin:
// https://github.com/linuxdeepin/qt5platform-plugins/blob/master/src/dnativesettings.h
static QFunctionPointer build_function = qApp->platformFunction("_d_buildNativeSettings");
if (!build_function) {
return nullptr;
}
QObject *obj = new QObject(window);
bool ok = reinterpret_cast<bool(*)(QObject*, quint32)>(build_function)(obj, window->winId());
if (!ok) {
delete obj;
return nullptr;
}
return obj;
}
class Window : public QWindow
{
public:
bool handleMoveing = false;
private:
void mouseMoveEvent(QMouseEvent *e) override {
if (handleMoveing && e->buttons() == Qt::LeftButton) {
handle()->startSystemMove();
} else {
QWindow::mouseMoveEvent(e);
}
}
};
int main(int argc, char *argv[])
{
QGuiApplication app(argc, argv);
Window window;
window.resize(200, 200);
if (setNoTitlebar(window.winId(), true)) {
// If enabled no titlebar mode, the window is no min/max/close buttons, you need to implement it by Qt widgets.
// Like as https://github.com/linuxdeepin/dtkwidget/blob/master/src/widgets/dtitlebar.cpp
window.handleMoveing = true;
auto nativeSettings = createNativeSettingsFor(&window);
if (nativeSettings) {
nativeSettings->setProperty("DTK/WindowRadius", "100,100");
nativeSettings->setProperty("borderWidth", 2);
nativeSettings->setProperty("borderColor", QColor(Qt::red));
nativeSettings->setProperty("shadowOffset", "30,30");
nativeSettings->setProperty("shadowRadius", 30);
nativeSettings->setProperty("shadowColor", QColor(Qt::blue));
// See more properties in DPlatformTheme
}
}
window.show();
return app.exec();
}
|
