screensaver/rects/RectSaver.cpp

//
// RectSaver.cpp
// screensaver
//
// Created by Bob Polis at 2020-10-26
// Copyright (c) 2020 SwiftCoder. All rights reserved.
//

#include "RectSaver.hpp"
#include <libscscreensaver.hpp>

class RectSaver : public ScreensaverPlugin {
    public:
        RectSaver() = default;
        ~RectSaver() = default;

        void setup(cairo_t* context, const cairo_rectangle_t& rect) override;
        void draw_frame() override;
        int fps() const override;
};

ScreensaverPlugin* create_instance() {
    return new RectSaver;
}

void RectSaver::setup(cairo_t* context, const cairo_rectangle_t& rect) {
    ScreensaverPlugin::setup(context, rect);
    make_black();
}

int RectSaver::fps() const {
    return 2;
}

void RectSaver::draw_frame() {
    cairo_set_source_rgb(_c, random01(), random01(), random01());
    cairo_rectangle_t rect {random_rect()};
    cairo_rectangle(_c, rect.x, rect.y, rect.width, rect.height);
    cairo_fill(_c);
}