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
|
//===========================================
// Lumina-DE source code
// Copyright (c) 2016, Henry Hu
// Available under the 3-clause BSD license
// See the LICENSE file for full details
//===========================================
#include "LDesktopBackground.h"
#include <QPainter>
#include <QPaintEvent>
#include <QDebug>
#include "LSession.h"
void LDesktopBackground::paintEvent(QPaintEvent *ev) {
//return; //do nothing - always invisible
if (bgPixmap != NULL) {
//qDebug() << "Wallpaper paint Event:" << ev->rect();
//QPainter painter(this);
//painter.setBrush(*bgPixmap);
//painter.drawRect(ev->rect().adjusted(-1,-1,2,2));
}else{
QWidget::paintEvent(ev);
}
}
QPixmap LDesktopBackground::setBackground(const QString& bgFile, const QString& format, QRect geom) {
//if (bgPixmap != NULL) delete bgPixmap;
QPixmap bgPixmap(geom.size());// = new QPixmap(size());
if (bgFile.startsWith("rgb(")) {
QStringList colors = bgFile.section(")",0,0).section("(",1,1).split(",");
QColor color = QColor(colors[0].toInt(), colors[1].toInt(), colors[2].toInt());
bgPixmap.fill(color);
} else {
bgPixmap.fill(Qt::black);
// Load the background file and scale
QPixmap bgImage(bgFile);
if (format == "stretch" || format == "full" || format == "fit") {
Qt::AspectRatioMode mode;
if (format == "stretch") {
mode = Qt::IgnoreAspectRatio;
} else if (format == "full") {
mode = Qt::KeepAspectRatioByExpanding;
} else {
mode = Qt::KeepAspectRatio;
}
if(bgImage.height() != geom.height() && bgImage.width() != geom.width() ){ bgImage = bgImage.scaled(geom.size(), mode); }
//bgImage = bgImage.scaled(size(), mode);
}
// Calculate the offset
int dx = 0, dy = 0;
int drawWidth = bgImage.width(), drawHeight = bgImage.height();
if (format == "fit" || format == "center" || format == "full") {
dx = (geom.width() - bgImage.width()) / 2;
dy = (geom.height() - bgImage.height()) / 2;
} else if (format == "tile") {
drawWidth = geom.width();
drawHeight = geom.height();
} else {
if (format.endsWith("right")) {
dx = geom.width() - bgImage.width();
}
if (format.startsWith("bottom")) {
dy = geom.height() - bgImage.height();
}
}
// Draw the background image
QPainter painter(&bgPixmap);
painter.setBrush(bgImage);
painter.setBrushOrigin(dx, dy);
painter.drawRect(dx, dy, drawWidth, drawHeight);
}
//this->repaint(); //make sure the entire thing gets repainted right away
//LSession::handle()->XCB->paintRoot(geom, &bgPixmap);
return bgPixmap;
//show();
}
LDesktopBackground::LDesktopBackground() : QWidget() {
bgPixmap = NULL;
this->setWindowOpacity(0);
}
LDesktopBackground::~LDesktopBackground() {
if (bgPixmap != NULL) delete bgPixmap;
}
|
