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);

    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	torben	524	#include "pictureview.h"
2
3	torben	528	#include <QPainter>
4	torben	639	#include <QDebug>
5	torben	524
6	torben	528	#include "httpwrapper.h"
7
8	torben	524	PictureView::PictureView(QWidget* parent)
9			: QWidget(parent)
10			{
11			}
12
13	torben	641
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	torben	524	void PictureView::paintEvent ( QPaintEvent* event)
17			{
18	torben	525	Q_UNUSED(event);
19	torben	707
20			QSize s = this->size();
21
22			QBrush blackBrush(Qt::black);
23
24	torben	524	QPainter painter(this);
25	torben	707	painter.fillRect( QRect(0,0,s.width(), s.height()), blackBrush);
26
27			int x = 0;
28			int y = 0;
29
30			if (image.width() < s.width() ) {
31			x = (s.width() - image.width()) / 2;
32			}
33			if (image.height() < s.height() ) {
34			y = (s.height() - image.height()) / 2;
35			}
36
37
38			painter.drawPixmap(x,y,image);
39	torben	524	painter.end();
40			}
41
42			void PictureView::loadFromUrl(QString source)
43			{
44			QMap<QString, QPixmap>::iterator it = map.find(source);
45			if (it != map.end() ) {
46			image = it.value();
47			this->repaint();
48			} else {
49	torben	639	qDebug() << "Loading file " << source;
50	torben	524
51	torben	526	QPixmap pixmap;
52	torben	639	if (source.at(0) == '/') { //local file
53			pixmap = QPixmap(source);
54			} else {
55			QByteArray data = HttpWrapper::getSyncData(source);
56			pixmap.loadFromData( data );
57			}
58	torben	524
59	torben	707	QPixmap scaledImage = pixmap.scaled(size(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
60	torben	524
61	torben	526	image = scaledImage;
62			this->repaint();
63	torben	524
64	torben	528	map.insert(source, scaledImage);
65
66	torben	526	}
67	torben	524	}