git.maemo.org Git - photoenhancer/blob - src/core/baseui/workspace.cpp

   1 #include "workspace.h"
   2 #include <QPainter>
   3 #include <QKeyEvent>
   4
   5 #include <QDebug>
   6
   7 ImageLoader::ImageLoader()
   8 {
   9     url=QString();
  10 }
  11 void ImageLoader::fetchImage(QString path)
  12 {
  13     url=path;
  14     start();
  15 }
  16 void ImageLoader::run()
  17 {
  18     QImage image(url);
  19     emit ready(image);
  20 }
  21
  22
  23 Workspace::Workspace(QWidget *parent) :
  24     QWidget(parent)
  25 {
  26     qRegisterMetaType<QImage>("QImage &" );
  27     mImageLoader=new ImageLoader();
  28     connect(mImageLoader,SIGNAL(ready(QImage&)),this,SLOT(onImageLoaded(QImage&)));
  29 }
  30 void  Workspace::loadImage(QString fileName)
  31 {
  32    mImageLoader->fetchImage(fileName);
  33 }
  34 void Workspace::onImageLoaded(QImage &image)
  35 {
  36      mImage=image.copy();
  37      update();
  38      setMaximumSize(mImage.size());
  39      setMinimumSize(mImage.size());
  40
  41
  42 }
  43 void Workspace::keyPressEvent(QKeyEvent *e)
  44 {
  45     qDebug()<<e->key();
  46     if(e->key()==Qt::Key_Z)
  47         zoomIn();
  48     else if(e->key()==Qt::Key_X)
  49         zoomOut();
  50 }
  51
  52 void  Workspace::zoomIn()
  53 {
  54     mImage=mImage.scaledToHeight(mImage.height()*1.5).copy(rect());
  55     mImage=mImage.scaledToWidth(mImage.width()*1.5).copy(rect());
  56     update();
  57 }
  58 void  Workspace::zoomOut()
  59 {
  60     mImage=mImage.scaledToHeight(mImage.height()*0.5);
  61     mImage=mImage.scaledToWidth(mImage.width()*0.5);
  62     update();
  63 }
  64
  65 void  Workspace::paintEvent(QPaintEvent *p)
  66 {
  67     QPainter painter(this);
  68
  69     int resultX=(rect().width()-mImage.width())/2;
  70     int resultY=(rect().height()-mImage.height())/2;
  71     painter.drawImage(QPoint(resultX,resultY),mImage);
  72 }