import directory

imagegallery.cpp

@@ -1,5 +1,6 @@
 #include "imagegallery.h"
 #include <QPixmap>
+#include <QImageReader>
 
 ImageGallery::ImageGallery(QWidget *parent) : QWidget(parent)
 {
@@ -25,3 +26,21 @@ void ImageGallery::addImage(const QString &imagePath)
     scrollLayout->addWidget(imageLabel);
     imageLabels.append(imageLabel);
 }
+void ImageGallery::addImagesFromDirectory(const QString &directoryPath){
+    QDir directory(directoryPath);
+    QStringList filters;
+    const QList<QByteArray> supportedFormats = QImageReader::supportedImageFormats();
+
+    for(const QByteArray &format : supportedFormats){
+        filters.append("*." + QString(format).toLower());
+    }
+
+    directory.setNameFilters(filters);
+    directory.setFilter(QDir::Files | QDir::Readable);
+    directory.setSorting(QDir::Name);
+
+    const QFileInfoList fileList = directory.entryInfoList();
+    for(const QFileInfo &fileInfo : fileList) {
+        addImage(fileInfo.absoluteFilePath());
+    }
+}

imagegallery.h

@@ -6,6 +6,7 @@
 #include <QVBoxLayout>
 #include <QLabel>
 #include <QList>
+#include <QDir>
 
 class ImageGallery : public QWidget
 {
@@ -14,6 +15,7 @@ class ImageGallery : public QWidget
 public:
     explicit ImageGallery(QWidget *parent = nullptr);
     void addImage(const QString &imagePath);
+    void addImagesFromDirectory(const QString &directoryPath);
 
 private:
     QScrollArea *scrollArea;

mainwindow.cpp

@@ -1,13 +1,12 @@
 #include "mainwindow.h"
-
+#include <QApplication>
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
 {
     imageGallery = new ImageGallery(this);
     setCentralWidget(imageGallery);
-    setWindowTitle("Image Gallery");
-    imageGallery->addImage("/home/krzys/Obrazy/kod.png");
-    imageGallery->addImage("/home/krzys/Obrazy/kod.png");
+    setWindowTitle("Kallery Image Gallery");
+    imageGallery->addImagesFromDirectory("/home/krzys/Obrazy");
     resize(800, 600);
 }