loading_bar.hpp

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// LoadingBar — a progress bar that eases: the loading screen's (a rounded navy
// track, filled in the brand teal up to the start-up step reached), and a
// screen's while its list loads, in the theme's colours. The fill eases to each
// new value instead of jumping (the next step's frames show it moving), or,
// for the intro, fills at a steady pace over a given time. On the loading
// screen, the brand's colours (cadran/brand/…), the same in both themes.
// Copyright (C) 2026 JigSawFr.  GPLv3-or-later (see LICENSE.GPL).
#pragma once
 
#include <aurore.hpp>
 
class LoadingBar : public aurore::View
{
  public:
    LoadingBar();
 
    void setProgress(float value);
    void fillOver(float value, aurore::Time duration_us);
    void reset();
    void setBrand(bool on) { this->brand = on; }
 
    void draw(NVGcontext* vg, float x, float y, float width, float height,
        aurore::Style style, aurore::FrameContext* ctx) override;
 
    static aurore::View* create();
 
  private:
    void moveTo(float value, float duration_us, bool at_steady_pace);
    float drawn(aurore::Time now) const; 
 
    float from = 0.0f, to = 0.0f; 
    aurore::Time since = 0; 
    float duration     = 0.0f; 
    bool steady        = false; 
    bool brand         = false;
};