consolidate all repos to one for archive

semester_1/programiranje_1/Vaje/Vaja_10/10.Vaja/mainwindow.cpp

@@ -0,0 +1,85 @@
+#include "mainwindow.h"
+#include "ui_mainwindow.h"
+
+#include <QFileDialog>
+#include <QImage>
+#include <QPicture>
+
+#include <iostream>
+using namespace std;
+
+MainWindow::MainWindow(QWidget *parent) :
+    QMainWindow(parent),
+    ui(new Ui::MainWindow)
+{
+    ui->setupUi(this);
+    connect(ui->actionOdpri,SIGNAL(triggered()),this,SLOT(nalozi()));
+}
+
+MainWindow::~MainWindow()
+{
+    delete ui;
+}
+
+void MainWindow::nalozi(){
+    slika = new QImage(QFileDialog::getOpenFileName(this,tr("Open Image"), ".", tr("Image Files (*.png *.jpg *.bmp)")));
+    zrcalna = new QImage(*slika);
+    crnobela = new QImage(*slika);
+    zrcali();
+    crnobelo();
+    ui->label->setPixmap(QPixmap::fromImage(*slika));
+    ui->label_2->setPixmap(QPixmap::fromImage(*crnobela));
+    ui->label_3->setPixmap(QPixmap::fromImage(*zrcalna));
+}
+
+/**
+  * Uporabite naslednje metode:
+  * QRgb pixel = slika->pixel(int i, int j);
+  * int slika->width();
+  * int slika->height();
+  * zrcalna->setPixel(int i, int j, QRgb pixel);
+  *
+  * Spremenljivke:
+  * slika - slika, ki jo naložite
+  * zrcalna - zrcalna slika
+  */
+void MainWindow::zrcali(){
+    for (int i=0; i < slika->width(); i++ ) {
+        for (int j=0; j < slika->height(); j++ ) {
+            QRgb pixel = slika->pixel(i, j);
+            zrcalna->setPixel(slika->width() - i,  j, pixel);
+        }
+    }
+}
+
+
+/**
+  * Uporabite naslednje metode:
+  * QRgb pixel = slika->pixel(int i, int j);
+  * int slika->width();
+  * int slika->height();
+  * QColor color(QRgb pixel);
+  * int color.blue();
+  * int color.red();
+  * int color.green();
+  * void color.setBlue(int x);
+  * void color.setRed(int x);
+  * void color.setGreen(int x);
+  * crnobela->setPixel(int i, int j, QRgb pixel);
+  * QRgb qRgb(int red,int green,int blue);
+  *
+  * Spremenljivke:
+  * slika - slika, ki jo naložite
+  * crnobela - črno bela slika
+  */
+void MainWindow::crnobelo(){
+    for (int i=0; i < slika->width(); i++ ) {
+        for (int j=0; j < slika->height(); j++ ) {
+            QRgb pixel = slika->pixel(i, j);
+            QColor color(pixel);
+            int greyscale = (color.red() + color.green() + color.blue())/3;
+            pixel = qRgb(greyscale,greyscale,greyscale);
+            crnobela->setPixel(i,  j, pixel);
+        }
+    }
+}