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display: Allow using chained setters to manage blit helpers

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For example `drawing_buffer_add(...).set_alpha(128).set_hflip(true);`
This commit is contained in:
Tommy 2022-07-16 23:46:24 +12:00
parent 3b12a5043f
commit afa2abb667
1 changed files with 41 additions and 0 deletions
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41
src/display.hpp
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@ -1012,6 +1012,47 @@ protected:
/** Strength of highlight effect to apply, if any. */
uint8_t highlight = 0;
// Or they can be set in a chain.
blit_helper& set_color_and_alpha(color_t c)
{
this->r_mod = c.r; this->g_mod = c.g; this->b_mod = c.b;
this->alpha_mod = c.a;
return *this;
}
blit_helper& set_color_and_alpha(
uint8_t r, uint8_t g, uint8_t b, uint8_t a)
{
this->r_mod = r; this->g_mod = g; this->b_mod = b;
this->alpha_mod = a;
return *this;
}
blit_helper& set_color(color_t c)
{
this->r_mod = c.r; this->g_mod = c.g; this->b_mod = c.b;
return *this;
}
blit_helper& set_color(uint8_t r, uint8_t g, uint8_t b)
{
this->r_mod = r; this->g_mod = g; this->b_mod = b;
return *this;
}
blit_helper& set_alpha(uint8_t alpha)
{
this->alpha_mod = alpha; return *this;
}
blit_helper& set_hflip(bool hflip)
{
this->hflip = hflip; return *this;
}
blit_helper& set_vflip(bool vflip)
{
this->vflip = vflip; return *this;
}
blit_helper& set_highlight(uint8_t highlight)
{
this->highlight = highlight; return *this;
}
private:
// Core info is set on creation.