projects/infoscreen/pictureview.cpp

#include "pictureview.h"

#include <QPainter>
#include <QDebug>

#include "httpwrapper.h"

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


// TODO: if the picture doesn't fill the screen, fill the canvas with black before drawing the picture and 
// place the image mid-screen
void PictureView::paintEvent ( QPaintEvent* event)
{    
    Q_UNUSED(event);
    QPainter painter(this);
    painter.drawPixmap(0,0,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.scaledToHeight(size().height(), 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	// TODO: if the picture doesn't fill the screen, fill the canvas with black before drawing the picture and
15	// place the image mid-screen
16	void PictureView::paintEvent ( QPaintEvent* event)
17	{
18	Q_UNUSED(event);
19	QPainter painter(this);
20	painter.drawPixmap(0,0,image);
21	painter.end();
22	}
23
24	void PictureView::loadFromUrl(QString source)
25	{
26	QMap<QString, QPixmap>::iterator it = map.find(source);
27	if (it != map.end() ) {
28	image = it.value();
29	this->repaint();
30	} else {
31	qDebug() << "Loading file " << source;
32
33	QPixmap pixmap;
34	if (source.at(0) == '/') { //local file
35	pixmap = QPixmap(source);
36	} else {
37	QByteArray data = HttpWrapper::getSyncData(source);
38	pixmap.loadFromData( data );
39	}
40
41	QPixmap scaledImage = pixmap.scaledToHeight(size().height(), Qt::SmoothTransformation );
42
43	image = scaledImage;
44	this->repaint();
45
46	map.insert(source, scaledImage);
47
48	}
49	}