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Introduce LibCore and move GElapsedTimer => CElapsedTimer.

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I need a layer somewhere between AK (usable both by userspace and kernel)
and LibGUI (usable by userspace except WindowServer.) So here's LibCore.
This commit is contained in:
Andreas Kling 2019-04-10 16:14:44 +02:00
parent a74f3615ac
commit 5e0577a042
21 changed files with 98 additions and 37 deletions
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27
SharedGraphics/Painter.cpp
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@ -238,6 +238,33 @@ void Painter::blit_with_opacity(const Point& position, const GraphicsBitmap& sou
}
}
void Painter::blit_dimmed(const Point& position, const GraphicsBitmap& source, const Rect& src_rect)
{
Rect safe_src_rect = Rect::intersection(src_rect, source.rect());
Rect dst_rect(position, safe_src_rect.size());
dst_rect.move_by(state().translation);
auto clipped_rect = Rect::intersection(dst_rect, clip_rect());
if (clipped_rect.is_empty())
return;
const int first_row = clipped_rect.top() - dst_rect.top();
const int last_row = clipped_rect.bottom() - dst_rect.top();
const int first_column = clipped_rect.left() - dst_rect.left();
const int last_column = clipped_rect.right() - dst_rect.left();
RGBA32* dst = m_target->scanline(clipped_rect.y()) + clipped_rect.x();
const RGBA32* src = source.scanline(src_rect.top() + first_row) + src_rect.left() + first_column;
const size_t dst_skip = m_target->width();
const unsigned src_skip = source.width();
for (int row = first_row; row <= last_row; ++row) {
for (int x = 0; x <= (last_column - first_column); ++x) {
dst[x] = Color::from_rgba(src[x]).to_grayscale().darkened().value();
}
dst += dst_skip;
src += src_skip;
}
}
void Painter::blit_with_alpha(const Point& position, const GraphicsBitmap& source, const Rect& src_rect)
{
ASSERT(source.has_alpha_channel());

1
SharedGraphics/Painter.h
View file

@ -27,6 +27,7 @@ public:
void draw_focus_rect(const Rect&);
void draw_scaled_bitmap(const Rect& dst_rect, const GraphicsBitmap&, const Rect& src_rect);
void blit(const Point&, const GraphicsBitmap&, const Rect& src_rect, float opacity = 1.0f);
void blit_dimmed(const Point&, const GraphicsBitmap&, const Rect& src_rect);
void draw_text(const Rect&, const char* text, int length, const Font&, TextAlignment = TextAlignment::TopLeft, Color = Color::Black, TextElision = TextElision::None);
void draw_text(const Rect&, const char* text, int length, TextAlignment = TextAlignment::TopLeft, Color = Color::Black, TextElision = TextElision::None);