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#pragma once
#include "Widget.hpp"
#include "../SafeVector.hpp"
#include <memory>
#include <mglpp/system/FloatRect.hpp>
namespace gsr {
class ScrollablePage : public Widget {
public:
ScrollablePage(mgl::vec2f size);
ScrollablePage(const ScrollablePage&) = delete;
ScrollablePage& operator=(const ScrollablePage&) = delete;
bool on_event(mgl::Event &event, mgl::Window &window, mgl::vec2f offset) override;
void draw(mgl::Window &window, mgl::vec2f offset) override;
mgl::vec2f get_size() override;
mgl::vec2f get_inner_size() override;
void set_size(mgl::vec2f size);
void add_widget(std::unique_ptr<Widget> widget);
void reset_scroll();
private:
void apply_animation();
void limit_scroll(double child_height);
void limit_scroll_cursor(mgl::Window &window, double child_height, double scrollbar_empty_space);
void draw_scrollbar();
float get_scrollbar_width() const;
private:
mgl::vec2f size;
SafeVector<std::unique_ptr<Widget>> widgets;
int scroll_target_y = 0;
double scroll_y = 0.0;
mgl::FloatRect scrollbar_rect;
bool moving_scrollbar_with_cursor = false;
mgl::vec2f scrollbar_move_cursor_start_pos;
double scrollbar_move_cursor_scroll_y_start = 0.0;
};
}
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