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

   1 #include "workspace.h"
   2 #include <QPainter>
   3 #include <QKeyEvent>
   4 #include <QTransform>
   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 void Workspace::testEffect()
  22 {
  23
  24
  25 }
  26
  27 Workspace::Workspace(QWidget *parent) :
  28     QWidget(parent)
  29 {
  30     qRegisterMetaType<QImage>("QImage &" );
  31     mImageLoader=new ImageLoader();
  32     connect(mImageLoader,SIGNAL(ready(QImage&)),this,SLOT(onImageLoaded(QImage&)));
  33 }
  34 void  Workspace::loadImage(QString fileName)
  35 {
  36    mImageLoader->fetchImage(fileName);
  37 }
  38 void Workspace::onImageLoaded(QImage &image)
  39 {
  40      mImage=image.copy();
  41      testEffect();
  42      update();
  43
  44      setMaximumSize(mImage.size());
  45      setMinimumSize(mImage.size());
  46
  47
  48 }
  49 void Workspace::keyPressEvent(QKeyEvent *e)
  50 {
  51     qDebug()<<e->key();
  52     if(e->key()==Qt::Key_Z)
  53         zoomIn();
  54     else if(e->key()==Qt::Key_X)
  55         zoomOut();
  56 }
  57
  58 void  Workspace::zoomIn()
  59 {
  60     mImage=mImage.scaledToHeight(mImage.height()*1.5).copy(rect());
  61     mImage=mImage.scaledToWidth(mImage.width()*1.5).copy(rect());
  62     update();
  63 }
  64 void  Workspace::zoomOut()
  65 {
  66     mImage=mImage.scaledToHeight(mImage.height()*0.5);
  67     mImage=mImage.scaledToWidth(mImage.width()*0.5);
  68     update();
  69 }
  70
  71 void  Workspace::paintEvent(QPaintEvent *p)
  72 {
  73     QPainter painter(this);
  74
  75     int resultX=(rect().width()-mImage.width())/2;
  76     int resultY=(rect().height()-mImage.height())/2;
  77     painter.drawImage(QPoint(resultX,resultY),mImage);
  78 }