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authorAndreas Kling <kling@serenityos.org>2021-05-03 16:36:57 +0200
committerAndreas Kling <kling@serenityos.org>2021-05-03 16:36:57 +0200
commitf43adb816e99a039106a265ffd166d0676366e3c (patch)
tree2b8933043599d0155e4e968d6ab773eb5b20c3fe /Userland/Libraries/LibGfx
parent4bf9b399f7c2d72728767e1628d55dc682a6952e (diff)
downloadserenity-f43adb816e99a039106a265ffd166d0676366e3c.zip
Revert "LibGfx: Re-add missing bounds-checks to Painter::draw_rect"
This reverts commit 4cf5514672409dcec11a4069b075f996a30e93cb.
Diffstat (limited to 'Userland/Libraries/LibGfx')
-rw-r--r--Userland/Libraries/LibGfx/Painter.cpp120
-rw-r--r--Userland/Libraries/LibGfx/Painter.h1
2 files changed, 39 insertions, 82 deletions
diff --git a/Userland/Libraries/LibGfx/Painter.cpp b/Userland/Libraries/LibGfx/Painter.cpp
index 89d3e8fbad..065e7ee280 100644
--- a/Userland/Libraries/LibGfx/Painter.cpp
+++ b/Userland/Libraries/LibGfx/Painter.cpp
@@ -303,48 +303,12 @@ void Painter::draw_focus_rect(const IntRect& a_rect, Color color)
void Painter::draw_rect(const IntRect& rect, Color color, bool without_corners)
{
- auto transformed_rect = rect.transformed(transform());
- auto clipped_rect = transformed_rect.intersected(clip_rect());
- if (clipped_rect.is_empty())
- return;
-
int shift = without_corners ? 1 : 0;
- IntSize thickness = {
- static_cast<float>(float_scale().x()),
- static_cast<float>(float_scale().y()),
- };
-
- if (transformed_rect.top() >= clipped_rect.top()) {
- draw_physical_line(to_physical(rect.top_left().moved_right(shift)),
- to_physical(rect.top_right().moved_left(shift)),
- color,
- thickness,
- LineStyle::Solid);
- }
-
- if (transformed_rect.bottom() <= clipped_rect.bottom()) {
- draw_physical_line(to_physical(rect.bottom_left().moved_right(shift)),
- to_physical(rect.bottom_right().moved_left(shift)),
- color,
- thickness,
- LineStyle::Solid);
- }
-
- if (transformed_rect.left() >= clipped_rect.left()) {
- draw_physical_line(to_physical(rect.top_left().moved_down(shift)),
- to_physical(rect.bottom_left().moved_up(shift)),
- color,
- thickness,
- LineStyle::Solid);
- }
- if (transformed_rect.right() <= clipped_rect.right()) {
- draw_physical_line(to_physical(rect.top_right().moved_down(shift)),
- to_physical(rect.bottom_right().moved_up(shift)),
- color,
- thickness,
- LineStyle::Solid);
- }
+ draw_line(rect.top_left().moved_right(shift), rect.top_right().moved_left(shift), color);
+ draw_line(rect.bottom_left().moved_right(shift), rect.bottom_right().moved_left(shift), color);
+ draw_line(rect.top_left().moved_down(shift), rect.bottom_left().moved_up(shift), color);
+ draw_line(rect.top_right().moved_down(shift), rect.bottom_right().moved_up(shift), color);
}
void Painter::draw_bitmap(const IntPoint& p, const CharacterBitmap& bitmap, Color color)
@@ -1457,29 +1421,33 @@ void Painter::draw_physical_pixel(const IntPoint& physical_position, Color color
fill_physical_rect(rect, color);
}
-void Painter::draw_physical_line(IntPoint p1, IntPoint p2, Color color, IntSize thickness, LineStyle style)
+void Painter::draw_line(const IntPoint& p1, const IntPoint& p2, Color color, int thickness_, LineStyle style)
{
- auto horizontal_thickness = thickness.width();
- auto vertical_thickness = thickness.height();
+ auto horizontal_thickness = static_cast<int>(thickness_ * float_scale().x());
+ auto vertical_thickness = static_cast<int>(thickness_ * float_scale().y());
+ IntSize thickness { horizontal_thickness, vertical_thickness };
if (color.alpha() == 0)
return;
auto clip_rect = this->clip_rect();
+ auto point1 = to_physical(p1);
+ auto point2 = to_physical(p2);
+
// Special case: vertical line.
- if (p1.x() == p2.x()) {
- const int x = p1.x();
+ if (point1.x() == point2.x()) {
+ const int x = point1.x();
if (x < clip_rect.left() || x > clip_rect.right())
return;
- if (p1.y() > p2.y())
- swap(p1, p2);
- if (p1.y() > clip_rect.bottom())
+ if (point1.y() > point2.y())
+ swap(point1, point2);
+ if (point1.y() > clip_rect.bottom())
return;
- if (p2.y() < clip_rect.top())
+ if (point2.y() < clip_rect.top())
return;
- int min_y = max(p1.y(), clip_rect.top());
- int max_y = min(p2.y(), clip_rect.bottom());
+ int min_y = max(point1.y(), clip_rect.top());
+ int max_y = min(point2.y(), clip_rect.bottom());
if (style == LineStyle::Dotted) {
for (int y = min_y; y <= max_y; y += vertical_thickness * 2)
draw_physical_pixel({ x, y }, color, thickness);
@@ -1497,18 +1465,18 @@ void Painter::draw_physical_line(IntPoint p1, IntPoint p2, Color color, IntSize
}
// Special case: horizontal line.
- if (p1.y() == p2.y()) {
- const int y = p1.y();
+ if (point1.y() == point2.y()) {
+ const int y = point1.y();
if (y < clip_rect.top() || y > clip_rect.bottom())
return;
- if (p1.x() > p2.x())
- swap(p1, p2);
- if (p1.x() > clip_rect.right())
+ if (point1.x() > point2.x())
+ swap(point1, point2);
+ if (point1.x() > clip_rect.right())
return;
- if (p2.x() < clip_rect.left())
+ if (point2.x() < clip_rect.left())
return;
- int min_x = max(p1.x(), clip_rect.left());
- int max_x = min(p2.x(), clip_rect.right());
+ int min_x = max(point1.x(), clip_rect.left());
+ int max_x = min(point2.x(), clip_rect.right());
if (style == LineStyle::Dotted) {
for (int x = min_x; x <= max_x; x += horizontal_thickness * 2)
draw_physical_pixel({ x, y }, color, thickness);
@@ -1528,27 +1496,27 @@ void Painter::draw_physical_line(IntPoint p1, IntPoint p2, Color color, IntSize
// FIXME: Implement dotted/dashed diagonal lines.
VERIFY(style == LineStyle::Solid);
- const int adx = abs(p2.x() - p1.x());
- const int ady = abs(p2.y() - p1.y());
+ const int adx = abs(point2.x() - point1.x());
+ const int ady = abs(point2.y() - point1.y());
if (adx > ady) {
- if (p1.x() > p2.x())
- swap(p1, p2);
+ if (point1.x() > point2.x())
+ swap(point1, point2);
} else {
- if (p1.y() > p2.y())
- swap(p1, p2);
+ if (point1.y() > point2.y())
+ swap(point1, point2);
}
// FIXME: Implement clipping below.
- const int dx = p2.x() - p1.x();
- const int dy = p2.y() - p1.y();
+ const int dx = point2.x() - point1.x();
+ const int dy = point2.y() - point1.y();
int error = 0;
if (dx > dy) {
const int y_step = dy == 0 ? 0 : (dy > 0 ? 1 : -1);
const int delta_error = 2 * abs(dy);
- int y = p1.y();
- for (int x = p1.x(); x <= p2.x(); ++x) {
+ int y = point1.y();
+ for (int x = point1.x(); x <= point2.x(); ++x) {
if (clip_rect.contains(x, y))
draw_physical_pixel({ x, y }, color, thickness);
error += delta_error;
@@ -1560,8 +1528,8 @@ void Painter::draw_physical_line(IntPoint p1, IntPoint p2, Color color, IntSize
} else {
const int x_step = dx == 0 ? 0 : (dx > 0 ? 1 : -1);
const int delta_error = 2 * abs(dx);
- int x = p1.x();
- for (int y = p1.y(); y <= p2.y(); ++y) {
+ int x = point1.x();
+ for (int y = point1.y(); y <= point2.y(); ++y) {
if (clip_rect.contains(x, y))
draw_physical_pixel({ x, y }, color, thickness);
error += delta_error;
@@ -1573,16 +1541,6 @@ void Painter::draw_physical_line(IntPoint p1, IntPoint p2, Color color, IntSize
}
}
-void Painter::draw_line(const IntPoint& p1, const IntPoint& p2, Color color, int thickness_, LineStyle style)
-{
- IntSize thickness {
- static_cast<int>(thickness_ * float_scale().x()),
- static_cast<int>(thickness_ * float_scale().y())
- };
-
- draw_physical_line(to_physical(p1), to_physical(p2), color, thickness, style);
-}
-
static bool can_approximate_bezier_curve(const FloatPoint& p1, const FloatPoint& p2, const FloatPoint& control)
{
constexpr static int tolerance = 15;
diff --git a/Userland/Libraries/LibGfx/Painter.h b/Userland/Libraries/LibGfx/Painter.h
index 0eb515d6b8..d72a8d542e 100644
--- a/Userland/Libraries/LibGfx/Painter.h
+++ b/Userland/Libraries/LibGfx/Painter.h
@@ -154,7 +154,6 @@ protected:
void fill_rect_with_draw_op(const IntRect&, Color);
void blit_with_opacity(const IntPoint&, const Gfx::Bitmap&, const IntRect& src_rect, float opacity, bool apply_alpha = true);
void draw_physical_pixel(const IntPoint&, Color, IntSize thickness = { 1, 1 });
- void draw_physical_line(IntPoint, IntPoint, Color, IntSize thickness, LineStyle style);
void fill_physical_rect(const IntRect&, Color);
ALWAYS_INLINE bool has_integer_scale() const { return float_scale().x() == float_scale().y() && float_scale().x() == floorf(float_scale().x()); }