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
|
#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QFileDialog>
#include <QMessageBox>
#include <QPdfDocument>
#include "sequentialpagewidget.h"
Q_LOGGING_CATEGORY(lcExample, "qt.examples.pdfviewer")
MainWindow::MainWindow(QWidget *parent)
: QMainWindow(parent)
, ui(new Ui::MainWindow)
, m_doc(new QPdfDocument(this))
, m_pageWidget(new SequentialPageWidget(this))
{
ui->setupUi(this);
m_pageWidget->setDocument(m_doc);
ui->scrollArea->setWidget(m_pageWidget);
connect(m_pageWidget, SIGNAL(showingPageRange(int,int)),
this, SLOT(showingPageRange(int,int)), Qt::QueuedConnection);
}
MainWindow::~MainWindow()
{
delete ui;
}
void MainWindow::open(const QUrl &docLocation)
{
if (docLocation.isLocalFile())
m_doc->load(docLocation.toLocalFile());
else {
qCDebug(lcExample) << docLocation << "is not a valid local file";
QMessageBox::critical(this, tr("Failed to open"), tr("%1 is not a valid local file").arg(docLocation.toString()));
}
// TODO: connect to signal from document
m_pageWidget->invalidate();
qCDebug(lcExample) << docLocation;
ui->scrollArea->ensureVisible(0, 0, 0, 0);
}
void MainWindow::showingPageRange(int start, int end)
{
ui->statusBar->clearMessage();
if (start == end)
ui->statusBar->showMessage(tr("showing page %1").arg(start));
else
ui->statusBar->showMessage(tr("showing pages %1 to %2").arg(start).arg(end));
}
void MainWindow::on_actionOpen_triggered()
{
QUrl toOpen = QFileDialog::getOpenFileUrl(this, tr("Choose a PDF"), QUrl(), "Portable Documents (*.pdf)");
if (toOpen.isValid())
open(toOpen);
}
|
