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LibGfx+Everywhere: Change Gfx::Rect to be endpoint exclusive

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Previously, calling `.right()` on a `Gfx::Rect` would return the last
column's coordinate still inside the rectangle, or `left + width - 1`.
This is called 'endpoint inclusive' and does not make a lot of sense for
`Gfx::Rect<float>` where a rectangle of width 5 at position (0, 0) would
return 4 as its right side. This same problem exists for `.bottom()`.

This changes `Gfx::Rect` to be endpoint exclusive, which gives us the
nice property that `width = right - left` and `height = bottom - top`.
It enables us to treat `Gfx::Rect<int>` and `Gfx::Rect<float>` exactly
the same.

All users of `Gfx::Rect` have been updated accordingly.
This commit is contained in:
Jelle Raaijmakers 2023-05-22 00:41:18 +02:00 • committed by Andreas Kling
parent b7f4363791
commit f391ccfe53
88 changed files with 524 additions and 518 deletions
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10
Userland/Applications/SystemMonitor/GraphWidget.cpp
View file

@ -59,7 +59,7 @@ void GraphWidget::paint_event(GUI::PaintEvent& event)
auto const& background_color = line_color.with_alpha(0x7f);
m_calculated_points.clear_with_capacity();
for (size_t i = 0; i < m_values.size(); i++) {
int x = inner_rect.right() - (i * 2) + 1;
int x = inner_rect.right() - i * 2;
if (x < 0)
break;
auto const& current_values = m_values.at(m_values.size() - i - 1);
@ -74,7 +74,7 @@ void GraphWidget::paint_event(GUI::PaintEvent& event)
value += current_values[l];
}
float scaled_value = value * scale;
Gfx::IntPoint current_point { x, inner_rect.bottom() - (int)scaled_value };
Gfx::IntPoint current_point { x, inner_rect.bottom() - 1 - (int)scaled_value };
m_calculated_points.append(current_point);
}
VERIFY(m_calculated_points.size() <= m_values.size());
@ -91,14 +91,14 @@ void GraphWidget::paint_event(GUI::PaintEvent& event)
if (points_in_path > 1) {
VERIFY(current_point);
VERIFY(first_point);
path.line_to({ current_point->x() - 1, inner_rect.bottom() + 1 });
path.line_to({ first_point->x() + 1, inner_rect.bottom() + 1 });
path.line_to({ current_point->x() - 1, inner_rect.bottom() });
path.line_to({ first_point->x() + 1, inner_rect.bottom() });
path.close();
painter.fill_path(path, background_color, Gfx::Painter::WindingRule::EvenOdd);
} else if (points_in_path == 1 && current_point) {
// Can't fill any area, we only have one data point.
// Just draw a vertical line as a "fill"...
painter.draw_line(*current_point, { current_point->x(), inner_rect.bottom() }, background_color);
painter.draw_line(*current_point, { current_point->x(), inner_rect.bottom() - 1 }, background_color);
}
path = {};
points_in_path = 0;