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LibGfx: Replace 'bool dotted' with a LineStyle::{Solid,Dotted} enum

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Just a bool is insufficient as we'll have to support dashed lines as well.
This commit is contained in:
Linus Groh 2020-05-10 11:58:33 +01:00 committed by Andreas Kling
parent da42279171
commit 59d00e5df6
Notes: sideshowbarker 2024-07-19 06:46:03 +09:00 
Author: https://github.com/linusg
Commit: https://github.com/SerenityOS/serenity/commit/59d00e5df6c
Pull-request: https://github.com/SerenityOS/serenity/pull/2178
3 changed files with 21 additions and 11 deletions
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14
Libraries/LibGfx/Painter.cpp
View file

@ -966,7 +966,7 @@ void Painter::draw_pixel(const Point& position, Color color, int thickness)
fill_rect(rect.translated(-state().translation), color);
}
void Painter::draw_line(const Point& p1, const Point& p2, Color color, int thickness, bool dotted)
void Painter::draw_line(const Point& p1, const Point& p2, Color color, int thickness, LineStyle style)
{
auto clip_rect = this->clip_rect();
@ -989,7 +989,7 @@ void Painter::draw_line(const Point& p1, const Point& p2, Color color, int thick
return;
int min_y = max(point1.y(), clip_rect.top());
int max_y = min(point2.y(), clip_rect.bottom());
if (dotted) {
if (style == LineStyle::Dotted) {
for (int y = min_y; y <= max_y; y += thickness * 2)
draw_pixel({ x, y }, color, thickness);
} else {
@ -1012,7 +1012,7 @@ void Painter::draw_line(const Point& p1, const Point& p2, Color color, int thick
return;
int min_x = max(point1.x(), clip_rect.left());
int max_x = min(point2.x(), clip_rect.right());
if (dotted) {
if (style == LineStyle::Dotted) {
for (int x = min_x; x <= max_x; x += thickness * 2)
draw_pixel({ x, y }, color, thickness);
} else {
@ -1023,7 +1023,7 @@ void Painter::draw_line(const Point& p1, const Point& p2, Color color, int thick
}
// FIXME: Implement dotted diagonal lines.
ASSERT(!dotted);
ASSERT(style == LineStyle::Solid);
const double adx = abs(point2.x() - point1.x());
const double ady = abs(point2.y() - point1.y());
@ -1116,10 +1116,10 @@ void Painter::for_each_line_segment_on_bezier_curve(const FloatPoint& control_po
for_each_line_segment_on_bezier_curve(control_point, p1, p2, callback);
}
void Painter::draw_quadratic_bezier_curve(const Point& control_point, const Point& p1, const Point& p2, Color color, int thickness, bool dotted)
void Painter::draw_quadratic_bezier_curve(const Point& control_point, const Point& p1, const Point& p2, Color color, int thickness, LineStyle style)
{
for_each_line_segment_on_bezier_curve(FloatPoint(control_point.x(), control_point.y()), FloatPoint(p1.x(), p1.y()), FloatPoint(p2.x(), p2.y()), [&](const FloatPoint& p1, const FloatPoint& p2) {
draw_line(Point(p1.x(), p1.y()), Point(p2.x(), p2.y()), color, thickness, dotted);
draw_line(Point(p1.x(), p1.y()), Point(p2.x(), p2.y()), color, thickness, style);
});
}
@ -1263,7 +1263,7 @@ void Painter::fill_path(Path& path, Color color, WindingRule winding_rule)
#ifdef FILL_PATH_DEBUG
dbg() << "y=" << scanline << ": " << winding_number << " at " << i << ": " << from << " -- " << to;
#endif
draw_line(from, to, color, 1, false);
draw_line(from, to, color, 1);
}
skip_drawing:;

10
Libraries/LibGfx/Painter.h
View file

@ -43,6 +43,12 @@ class Painter {
public:
explicit Painter(Gfx::Bitmap&);
~Painter();
enum class LineStyle {
Solid,
Dotted,
};
void clear_rect(const Rect&, Color);
void fill_rect(const Rect&, Color);
void fill_rect_with_dither_pattern(const Rect&, Color, Color);
@ -55,8 +61,8 @@ public:
void draw_triangle(const Point&, const Point&, const Point&, Color);
void draw_ellipse_intersecting(const Rect&, Color, int thickness = 1);
void set_pixel(const Point&, Color);
void draw_line(const Point&, const Point&, Color, int thickness = 1, bool dotted = false);
void draw_quadratic_bezier_curve(const Point& control_point, const Point&, const Point&, Color, int thickness = 1, bool dotted = false);
void draw_line(const Point&, const Point&, Color, int thickness = 1, LineStyle style = LineStyle::Solid);
void draw_quadratic_bezier_curve(const Point& control_point, const Point&, const Point&, Color, int thickness = 1, LineStyle style = LineStyle::Solid);
void draw_scaled_bitmap(const Rect& dst_rect, const Gfx::Bitmap&, const Rect& src_rect);
void blit(const Point&, const Gfx::Bitmap&, const Rect& src_rect, float opacity = 1.0f);
void blit_dimmed(const Point&, const Gfx::Bitmap&, const Rect& src_rect);

8
Libraries/LibWeb/Layout/LayoutBox.cpp
View file

@ -102,10 +102,14 @@ void LayoutBox::paint_border(RenderingContext& context, Edge edge, const Gfx::Fl
color = (edge == Edge::Left || edge == Edge::Top) ? top_left_color : bottom_right_color;
}
bool dotted = border_style.has_value() && border_style.value()->to_string() == "dotted";
auto line_style = Gfx::Painter::LineStyle::Solid;
if (border_style.has_value()) {
if (border_style.value()->to_string() == "dotted")
line_style = Gfx::Painter::LineStyle::Dotted;
}
auto draw_line = [&](auto& p1, auto& p2) {
context.painter().draw_line({ (int)p1.x(), (int)p1.y() }, { (int)p2.x(), (int)p2.y() }, color, 1, dotted);
context.painter().draw_line({ (int)p1.x(), (int)p1.y() }, { (int)p2.x(), (int)p2.y() }, color, 1, line_style);
};
auto width_for = [&](CSS::PropertyID property_id) -> float {