ShapeCorners

KDE effect rounds/chisels corners of your windows.

Fork of this, which is a fork of this. Implements KDE 5.23 fixes from matinlotfali's fork.

Using an older version of KDE? Check out the pre-5.23 and 5.23 branches!

Features:

• Customizable via config file
• Different types of corner: Rounded and Chiseled
• Each corner can have different radius
• Ability to square corner when windows edge is at screen edge
• Ability to define Whitelist and Blacklist to exclude/force applying ShapeCorners

Why this fork?

We've got:

• The experimental corner type Squircled type and its SquircleRatio
• SquareEdgesX and SquareEdgesY, which allow you to define extra coordinates at which SquareAtScreenEdge will take effect. Particularly useful for multi-monitor setups

Dependencies

• Distro Debian based (Ubuntu, Kubuntu):

sudo apt install git cmake g++ gettext extra-cmake-modules qttools5-dev libqt5x11extras5-dev libkf5configwidgets-dev libkf5crash-dev libkf5globalaccel-dev libkf5kio-dev libkf5notifications-dev kinit-dev kwin-dev 

• Distro Arch based:

sudo pacman -S git cmake gcc gettext extra-cmake-modules qt5-tools qt5-x11extras kcrash kglobalaccel kde-dev-utils kio knotifications kinit kwin

Build

git clone https://github.com/ZacharyTalis/ShapeCorners
cd ShapeCorners
mkdir build; cd build
cmake ../ -DCMAKE_INSTALL_PREFIX=/usr -DQT5BUILD=ON
make && sudo make install
kwin_x11 --replace &

It should be now activated.

Config

• Create file shapecornersrc in ~/.config
• Follow this template:

[General]
Radius=10
Type=Rounded
SquareAtScreenEdge=false
FilterShadow=false
Whitelist=
Blacklist=
SquareEdgesX=
SquareEdgesY=
SquircleRatio=1.0

• Radius: Define all corners' or specific corner's radius. Accept 1 to 4 numbers, separate by ,. E.g.:
  • Radius=20: All corners have 20 radius
  • Radius=10,20: Top Left and Bottom Right has 10; Top Right and Bottom Left has 20
  • Radius=30,40,50: Top Left has 30; Top Right and Bottom Left has 40; Bottom Right has 50
  • Radius=20,50,30,10: Top Left has 20; Top Right has 50; Bottom Right has 30; Bottom Left has 10
• Type: Rounded, Chiseled, or Squircled
• SquareAtScreenEdge: Square off corner at when window edge is at screen edge. Boolean true or false.
• FilterShadow: Since there is no way to change corners of shadow layer, you might want to remove shadow layer out. Boolean true or false.
• Whitelist: List of window class names that will be forced to apply ShapeCorners. Separate them by ,. E.g.:
  • Whitelist=conky
  • Whitelist=plasma,conky
• Blacklist: List of window class names that will be excluded from applying ShapeCorners. Separate them by ,. E.g.:
  • Blacklist=krunner
  • Blacklist=krunner,display
• SquareEdgesX: Extra X coordinates in which SquareAtScreenEdge should take effect. Useful when monitors are placed horizontally from each other, or with monitors of different resolutions. E.g.:
  • SquareEdgesX=1080,1081,3000,3001
• SquareEdgesY: Extra Y coordinates in which SquareAtScreenEdge should take effect. Useful when monitors are placed vertically from each other, or with monitors of different resolutions. E.g.:
  • SquareEdgesY=1920
• SquircleRatio: Behind the scenes, squircle corners are approximated using cubic Bézier curves. Use this value to adjust the strength of all Bézier control points. Just don't stray too far from the default 1.0! E.g.:
  • SquircleRatio=1.043

After changing config, run:

kwin_x11 --replace &

Happy Squircling!