thek0tyara/nheko
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Improve color generation performance

Browse source 
Colors are generated asynchronously now and the TimelineItem is
updated when the color generation finishes.  This allows the UI
to stay responsive while new colors are being generated.
This commit is contained in:
redsky17 2019-02-08 01:58:00 +00:00
parent bb345a9a9f
commit 13663ad5f8
3 changed files with 53 additions and 27 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/Utils.cpp
View file

@ -399,7 +399,6 @@ utils::hashQString(const QString &input)
QString
utils::generateContrastingHexColor(const QString &input, const QString &background)
{
nhlog::ui()->debug("Background hex {}", background.toStdString());
const QColor backgroundCol(background);
const qreal backgroundLum = luminance(background);
@ -407,8 +406,6 @@ utils::generateContrastingHexColor(const QString &input, const QString &backgrou
auto hash = hashQString(input);
// create a hue value based on the hash of the input.
auto userHue = qAbs(hash % 360);
nhlog::ui()->debug(
"User Hue {} : {}", input.toStdString(), QString::number(userHue).toStdString());
// start with moderate saturation and lightness values.
auto sat = 220;
auto lightness = 125;
@ -430,7 +427,6 @@ utils::generateContrastingHexColor(const QString &input, const QString &backgrou
// saturation instead.
if (lightness == 242 || lightness == 13) {
qreal newSat = qBound(26.0, sat * 1.25, 242.0);
nhlog::ui()->info("newSat {}", QString::number(newSat).toStdString());
inputColor.setHsl(userHue, qFloor(newSat), lightness);
auto tmpLum = luminance(inputColor);
@ -477,11 +473,6 @@ utils::generateContrastingHexColor(const QString &input, const QString &backgrou
// get the hex value of the generated color.
auto colorHex = inputColor.name();
nhlog::ui()->debug("Hex Generated for {}: [hex: {}, contrast: {}, luminance: {}]",
input.toStdString(),
colorHex.toStdString(),
QString::number(contrast).toStdString(),
QString::number(lum).toStdString());
return colorHex;
}