/[projects]/infoscreen/pictureview.cpp
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Diff of /infoscreen/pictureview.cpp

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revision 524 by torben, Tue Jan 5 14:03:06 2010 UTC revision 707 by torben, Wed May 5 08:38:49 2010 UTC
# Line 1  Line 1 
1  #include "pictureview.h"  #include "pictureview.h"
2    
3  #include <QGraphicsView>  #include <QPainter>
 #include <QGraphicsScene>  
4  #include <QDebug>  #include <QDebug>
5  #include <QUrl>  
6  #include <QHttp>  #include "httpwrapper.h"
7    
8  PictureView::PictureView(QWidget* parent)  PictureView::PictureView(QWidget* parent)
9          : QWidget(parent)          : 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)  void PictureView::paintEvent ( QPaintEvent* event)
17  {      {    
18   //   Q_UNUSED(event);      Q_UNUSED(event);
19    
20        QSize s = this->size();
21    
22        QBrush blackBrush(Qt::black);
23    
24      QPainter painter(this);      QPainter painter(this);
25      painter.drawPixmap(0,0,image);      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      painter.end();      painter.end();
40  }  }
41    
# Line 26  void PictureView::loadFromUrl(QString so Line 46  void PictureView::loadFromUrl(QString so
46          image = it.value();          image = it.value();
47          this->repaint();          this->repaint();
48      } else {      } else {
49          requestedUrl = source;          qDebug() << "Loading file " << source;
50    
51          QUrl imageUrl(requestedUrl);          QPixmap pixmap;
52          http = new QHttp(imageUrl.host() );          if (source.at(0) == '/') { //local file
53          http->connect(http, SIGNAL(requestFinished(int,bool)),this, SLOT(onLoad(int,bool)) );              pixmap = QPixmap(source);
54            } else {
55                QByteArray data = HttpWrapper::getSyncData(source);
56                pixmap.loadFromData( data );
57            }
58    
59          http->get(imageUrl.path(), 0);          QPixmap scaledImage = pixmap.scaled(size(), Qt::KeepAspectRatio, Qt::SmoothTransformation);
     }  
 }  
   
 void PictureView::onLoad(int id, bool ok)  
 {  
 //    Q_UNUSED(id);  
 //    Q_UNUSED(ok);  
   
     QByteArray data = http->readAll();  
60    
61      QPixmap pixmap;          image = scaledImage;
62      pixmap.loadFromData( data );          this->repaint();
     delete http;  
   
     QPixmap scaledImage = pixmap.scaledToHeight(size().height(), Qt::SmoothTransformation );  
   
     image = scaledImage;  
     this->repaint();  
63    
64      map.insert(requestedUrl, scaledImage);          map.insert(source, scaledImage);
65    
66        }
67  }  }
68    
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