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Eike Hein 15f470fafc Initialize scale factor to the last scale factor set on any instance 
Summary:
Plasma::Svg initializes SvgPrivate::scaleFactor to 1.0. On systems with
a higher value for Units:devicePixelRatio, that means Svg::setScaleFactor
gets called with a different value right after instanciation and a fair
amount of work is done twice.

This patch introduces a static SvgPrivate::s_lastScaleFactor,
initialized to 1.0 but updated in Svg::setScaleFactor.
SvgPrivate::scaleFactor is then initialized to the static every time
its instanciated. That means after the first time Svg::setScaleFactor
is called with e.g. 2.0, subsequent Svg instances get initialized
with 2.0.

This ends up shaving a decent amount of time off of startup on scaled
systems.

Reviewers: #plasma, davidedmundson, broulik

Subscribers: plasma-devel, #frameworks

Tags: #plasma, #frameworks

Differential Revision: https://phabricator.kde.org/D9119
2017-12-04 00:03:46 +09:00
autotests Remove implicit string casting 2017-12-02 15:44:14 +01:00
docs Rename docs/plasmapkg directory to docs/plasmapkg2 2016-06-13 15:55:56 +02:00
examples SVN_SILENT made messages (.desktop file) - always resolve ours 2017-10-17 05:06:20 +02:00
src Initialize scale factor to the last scale factor set on any instance 2017-12-04 00:03:46 +09:00
templates SVN_SILENT made messages (.desktop file) - always resolve ours 2017-12-03 04:47:26 +01:00
tests Remove implicit string casting 2017-12-02 15:44:14 +01:00
.arcconfig Introduce .arcconfig file for better integration with phabricator.kde.org 2016-08-02 18:22:51 +02:00
.reviewboardrc Fix .reviewboardrc syntax 2014-06-02 17:39:23 +01:00
CMakeLists.txt Remove implicit string casting 2017-12-02 15:44:14 +01:00
COPYING Add COPYING and COPYING.LIB files 2013-12-23 18:39:10 +00:00
COPYING.LIB Add COPYING and COPYING.LIB files 2013-12-23 18:39:10 +00:00
ExtraDesktop.sh i18n: translate kdevtemplate for qml-plasmoid too 2016-10-08 14:25:03 +02:00
KF5PlasmaConfig.cmake.in Add KF5WindowSystem to link interface 2017-07-19 16:12:56 +02:00
KF5PlasmaMacros.cmake fix include even if load path isn't set 2017-04-28 11:44:40 +01:00
metainfo.yaml Add FreeBSD to metainfo.yaml. 2016-11-23 20:39:07 +01:00
README.md Add/update first line of README.md to be a short description, useful for inqlude 2015-07-27 19:41:21 +02:00

README.md

Plasma Framework

Foundational libraries, components, and tools of the Plasma workspaces

Introduction

The plasma framework provides the following:

  • QML components
  • A C++ library: libplasma
  • Script engines

QML components

org.kde.plasma.core

Bindings for libplasma functionality, such as DataEngine and FrameSvg, see @ref core.

org.kde.plasma.components

Graphical components for common items such as buttons, lineedits, tabbars and so on. Compatible subset of the MeeGo components used on the N9, see @ref plasmacomponents.

org.kde.plasma.extras

Extra graphical components that extend org.kde.plasma.components but are not in the standard api, see @ref plasmaextracomponents.

org.kde.plasma.plasmoid

Attached properties for manipulating the current applet or containment, see @ref libplasmaquick

libplasma

This C++ library provides:

  • rendering of SVG themes
  • loading of files from a certain filesystem structure: packages
  • data access through data engines
  • loading of the plugin structure of the workspace: containments and applets

See @ref libplasma.

Script engines

Provides support to create applets or containments in various scripting languages.