RGBCube/serenity
1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-05-31 13:38:11 +00:00
Code Issues Activity Actions

PixelPaint: Hold shift to constrain polygonal select tool line angle

Browse source 
Holding shift while using the polygonal select tool now constrains the
line angle in 22.5 degree increments. This matches the behavior of the
line tool.
This commit is contained in:
Tim Ledbetter 2023-01-12 19:49:03 +00:00 • committed by Jelle Raaijmakers
parent 569ef94228
commit ecc202c59d
4 changed files with 27 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

13
Userland/Applications/PixelPaint/Tools/Tool.cpp
View file

@ -70,4 +70,17 @@ Gfx::IntPoint Tool::editor_stroke_position(Gfx::IntPoint pixel_coords, int strok
return position.to_type<int>();
}
Gfx::IntPoint Tool::constrain_line_angle(Gfx::IntPoint start_pos, Gfx::IntPoint end_pos, float angle_increment)
{
float current_angle = AK::atan2<float>(end_pos.y() - start_pos.y(), end_pos.x() - start_pos.x()) + float { M_PI * 2 };
float constrained_angle = ((int)((current_angle + angle_increment / 2) / angle_increment)) * angle_increment;
auto diff = end_pos - start_pos;
float line_length = AK::hypot<float>(diff.x(), diff.y());
return { start_pos.x() + (int)(AK::cos(constrained_angle) * line_length),
start_pos.y() + (int)(AK::sin(constrained_angle) * line_length) };
}
}