Fix OpenGL canvas under fractional DPI scaling
1fdda43f9b68
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Authored by alvinhochun on Apr 15 2019, 5:12 PM.

Description

Fix OpenGL canvas under fractional DPI scaling

The canvas wasn't pixel-perfect even at 100% zoom when the
devicePixelRatio is non-integral. This change fixes the issue by
teaching Krita to perceive the widget/viewport size in the same manner
as Qt sets up the viewport, and to align the documentOffset to device
pixels.

Maniphest Tasks: T2299, T10765
Differential Revision: https://phabricator.kde.org/D20097

Details

Committed

alvinhochun

Apr 15 2019, 5:12 PM

Differential Revision

D20097: Fix OpenGL canvas under fractional DPI scaling

Parents

R37:948a30aea79e: CPMT: Add a progress bar for none-white background color.

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alvinhochun committed R37:1fdda43f9b68: Fix OpenGL canvas under fractional DPI scaling (authored by alvinhochun).Apr 15 2019, 5:12 PM

Changes (5)

				Path	Packages
	M			libs/ui/canvas/kis_canvas2.cpp
	M			libs/ui/canvas/kis_coordinates_converter.cpp
	M			libs/ui/canvas/kis_coordinates_converter.h
	M			libs/ui/opengl/kis_opengl_canvas2.cpp
	M			libs/ui/opengl/kis_opengl_canvas2.h