blob: cd17b6a0691a3e55b9833bb5e7162dda57de743f (
plain)
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
|
#include <QLabel>
#include <QHBoxLayout>
#include <QDesktopWidget>
#include <QApplication>
#include <QFileInfo>
#include <QMimeDatabase>
#include <QDir>
#include <QWheelEvent>
#include "helper.h"
#include "viewer.h"
Viewer::Viewer(QWidget *parent, Qt::WindowFlags f) : QWidget(parent, f), mCurIndex(-1) {
QDesktopWidget *dw = qApp->desktop();
mLabel = new QLabel;
mLabel->setMaximumSize(dw->size() - QSize(20, 20));
QHBoxLayout *mainLayout = new QHBoxLayout;
mainLayout->addWidget(mLabel);
setLayout(mainLayout);
}
void Viewer::setFile(const QString &file, bool allFiles){
mFiles.clear();
mCurIndex = -1;
QFileInfo fi(file);
QMimeDatabase db;
QMimeType mt = db.mimeTypeForFile(fi);
if(mt.name().startsWith("image")){
mFiles << fi.absoluteFilePath();
}
if(allFiles){
foreach(auto curFi, fi.dir().entryInfoList()){
if(!mFiles.contains(curFi.absoluteFilePath())){
QMimeType mt = db.mimeTypeForFile(curFi);
if(mt.name().startsWith("image")){
mFiles << curFi.absoluteFilePath();
}
}
}
}
if(!mFiles.isEmpty()){
mCurIndex = 0;
displayFile(mCurIndex);
}
}
void Viewer::preview(const QString &file){
mFiles.clear();
mCurIndex = -1;
QPixmap pm = Helper::preview(file);
mLabel->setPixmap(pm);
QString winTitle = QString(tr("%1 Viewer: [Preview %2]")).arg(qApp->applicationName()).arg(file);
setWindowTitle(winTitle);
adjustSize();
}
void Viewer::wheelEvent(QWheelEvent *event){
if(mCurIndex == -1){
return;
}
QPoint numDeg = event->angleDelta() / 8;
if(numDeg.y() < 0){ //this is scrolling down -> next!
if(mCurIndex + 1 >= mFiles.count()){
mCurIndex = 0;
}else{
++mCurIndex;
}
}else if(numDeg.y() > 0){
if(mCurIndex - 1 < 0){
mCurIndex = mFiles.count() - 1;
}else{
--mCurIndex;
}
}
displayFile(mCurIndex);
event->accept();
}
void Viewer::displayFile(int index){
if(index < 0){
return;
}
QPixmap pm(mFiles.at(mCurIndex));
if(pm.width() > mLabel->maximumWidth()){
pm = pm.scaledToWidth(mLabel->maximumWidth());
}
if(pm.height() > mLabel->maximumHeight()){
pm = pm.scaledToHeight(mLabel->maximumHeight());
}
mLabel->setPixmap(pm);
adjustSize();
QString winTitle = QString(tr("%1 Viewer [%2]")).arg(qApp->applicationName()).arg(mFiles.at(mCurIndex));
setWindowTitle(winTitle);
setFixedSize(size());
}
|
