changed to give it a default constructor
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@ -8,9 +8,9 @@
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#include "ScreensaverPlugin.hpp"
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#include "ScreensaverPlugin.hpp"
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ScreensaverPlugin::ScreensaverPlugin(cairo_t* context, const cairo_rectangle_t& rect)
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void ScreensaverPlugin::setup(cairo_t* context, const cairo_rectangle_t& rect) {
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: _c {context}, _r {rect}, _x_dist {rect.x, rect.width}, _y_dist {rect.y, rect.height} {
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_c = context;
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_r = rect;
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}
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}
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void ScreensaverPlugin::make_black() {
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void ScreensaverPlugin::make_black() {
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@ -44,13 +44,16 @@ cairo_rectangle_t ScreensaverPlugin::random_rect() {
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}
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}
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double ScreensaverPlugin::random_x() {
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double ScreensaverPlugin::random_x() {
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return _x_dist(_eng);
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std::uniform_real_distribution<double> dist {0, _r.width};
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return dist(_eng);
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}
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}
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double ScreensaverPlugin::random_y() {
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double ScreensaverPlugin::random_y() {
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return _y_dist(_eng);
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std::uniform_real_distribution<double> dist {0, _r.height};
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return dist(_eng);
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}
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}
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double ScreensaverPlugin::random01() {
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double ScreensaverPlugin::random01() {
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return _01_dist(_eng);
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std::uniform_real_distribution<double> dist {};
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return dist(_eng);
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}
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}
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@ -14,20 +14,18 @@
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class ScreensaverPlugin {
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class ScreensaverPlugin {
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public:
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public:
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ScreensaverPlugin(cairo_t* context, const cairo_rectangle_t& rect);
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ScreensaverPlugin() = default;
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virtual ~ScreensaverPlugin() = default;
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virtual ~ScreensaverPlugin() = default;
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virtual void setup(cairo_t* context, const cairo_rectangle_t& rect) = 0;
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virtual void draw_frame() = 0;
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virtual void draw_frame() = 0;
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virtual int fps() const = 0;
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virtual int fps() const = 0;
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protected:
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protected:
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cairo_t* _c;
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cairo_t* _c {nullptr};
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cairo_rectangle_t _r;
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cairo_rectangle_t _r {};
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std::random_device _dev;
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std::random_device _dev {};
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std::default_random_engine _eng {_dev()};
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std::default_random_engine _eng {_dev()};
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std::uniform_real_distribution<> _01_dist {};
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std::uniform_real_distribution<> _x_dist;
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std::uniform_real_distribution<> _y_dist;
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void make_black();
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void make_black();
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cairo_rectangle_t random_rect();
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cairo_rectangle_t random_rect();
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