projects/infoscreen/pictureview.cpp

#include "pictureview.h"

#include <QPainter>
#include <QDebug>

#include "httpwrapper.h"

PictureView::PictureView(QWidget* parent)
        : QWidget(parent)
{
}


void PictureView::paintEvent ( QPaintEvent* event)
{    
    Q_UNUSED(event);

    QSize s = this->size();

    QBrush blackBrush(Qt::black);

    QPainter painter(this);
    painter.fillRect( QRect(0,0,s.width(), s.height()), blackBrush);

    int x = 0;
    int y = 0;

    if (image.width() < s.width() )  {
        x = (s.width() - image.width()) / 2;
    }
    if (image.height() < s.height() ) {
        y = (s.height() - image.height()) / 2;
    }


    painter.drawPixmap(x,y,image);
    painter.end();
}

void PictureView::loadFromUrl(QString source)
{
    QMap<QString, QPixmap>::iterator it = map.find(source);
    if (it != map.end() ) {
        image = it.value();
        this->repaint();
    } else {
        qDebug() << "Loading file " << source;

        QPixmap pixmap;
        if (source.at(0) == '/') { //local file
            pixmap = QPixmap(source);
        } else {
            QByteArray data = HttpWrapper::getSyncData(source);
            pixmap.loadFromData( data );
        }

        QPixmap scaledImage = pixmap.scaled(size(), Qt::KeepAspectRatio, Qt::SmoothTransformation);

        image = scaledImage;
        this->repaint();

        map.insert(source, scaledImage);

    }
}
1	#include "pictureview.h"
2
3	#include <QPainter>
4	#include <QDebug>
5
6	#include "httpwrapper.h"
7
8	PictureView::PictureView(QWidget* parent)
9	: QWidget(parent)
10	{
11	}
12
13
14	void PictureView::paintEvent ( QPaintEvent* event)
15	{
16	Q_UNUSED(event);
17
18	QSize s = this->size();
19
20	QBrush blackBrush(Qt::black);
21
22	QPainter painter(this);
23	painter.fillRect( QRect(0,0,s.width(), s.height()), blackBrush);
24
25	int x = 0;
26	int y = 0;
27
28	if (image.width() < s.width() ) {
29	x = (s.width() - image.width()) / 2;
30	}
31	if (image.height() < s.height() ) {
32	y = (s.height() - image.height()) / 2;
33	}
34
35
36	painter.drawPixmap(x,y,image);
37	painter.end();
38	}
39
40	void PictureView::loadFromUrl(QString source)
41	{
42	QMap<QString, QPixmap>::iterator it = map.find(source);
43	if (it != map.end() ) {
44	image = it.value();
45	this->repaint();
46	} else {
47	qDebug() << "Loading file " << source;
48
49	QPixmap pixmap;
50	if (source.at(0) == '/') { //local file
51	pixmap = QPixmap(source);
52	} else {
53	QByteArray data = HttpWrapper::getSyncData(source);
54	pixmap.loadFromData( data );
55	}
56
57	QPixmap scaledImage = pixmap.scaled(size(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
58
59	image = scaledImage;
60	this->repaint();
61
62	map.insert(source, scaledImage);
63
64	}
65	}