#ifndef MAINWINDOW_H
#define MAINWINDOW_H

#include <QMainWindow>
#include <QPixmap>

namespace Ui {
class MainWindow;
}
class QLabel;
class QKeyEvent;
class Overlay;

class MainWindow : public QMainWindow
{
    Q_OBJECT

public:
    explicit MainWindow(QWidget *parent = 0);
    void keyPressEvent(QKeyEvent* event) override;
    bool event(QEvent* event) override;
    void resizeEvent(QResizeEvent* event) override;
    ~MainWindow();
    void setImage(std::string path);
    void setBlurRadius(unsigned int blurRadius);
    void setBackgroundOpacity(unsigned int opacity);
    void warn(std::string text);
    void setOverlay(Overlay* overlay);
    void setAspect(char aspectIn);
    void setDebugMode(bool debugModeIn) {debugMode = debugModeIn;}
    void setFitAspectAxisToWindow(bool fitAspectAxisToWindowIn) { fitAspectAxisToWindow = fitAspectAxisToWindowIn; }
private:
    Ui::MainWindow *ui;

    std::string currentImage;
    unsigned int blurRadius = 20;
    unsigned int backgroundOpacity = 150;
    char aspect = 'a';
    bool debugMode = false;
    bool fitAspectAxisToWindow = false;

    Overlay* overlay = NULL;

    void drawText(QPixmap& image, int margin, int fontsize, QString text, int alignment);

    void updateImage(bool immediately);
    int getImageRotation();

    QPixmap getBlurredBackground(const QPixmap& originalSize, const QPixmap& scaled);
    QPixmap getRotatedPixmap(const QPixmap& p);
    QPixmap getScaledPixmap(const QPixmap& p);
    void drawBackground(const QPixmap& originalSize, const QPixmap& scaled);
    void drawForeground(QPixmap& background, const QPixmap& foreground);
    QPixmap blur(const QPixmap& input);
};

#endif // MAINWINDOW_H