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fix: consider devicePixelRatio when scaling icons (#1751)

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shenleban tongying 2024-09-09 16:19:56 -04:00 committed by GitHub
parent aaaeb585b6
commit 5e62b1c567
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3 changed files with 14 additions and 19 deletions
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23
src/dict/dictionary.cc
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@ -6,18 +6,15 @@
#include <cstdio>
#include "dictionary.hh"
#include <QCryptographicHash>
// For needToRebuildIndex(), read below
#include <QFileInfo>
#include <QDateTime>
#include "config.hh"
#include <QDir>
#include <QFileInfo>
#include <QCryptographicHash>
#include <QDateTime>
#include <QImage>
#include <QPixmap>
#include <QPainter>
#include <QRegularExpression>
#include "utils.hh"
@ -238,6 +235,11 @@ void Class::loadIcon() noexcept
dictionaryIconLoaded = true;
}
int Class::getOptimalIconSize()
{
return 64 * qGuiApp->devicePixelRatio();
}
bool Class::loadIconFromFile( QString const & _filename, bool isFullName )
{
QFileInfo info;
@ -266,19 +268,14 @@ bool Class::loadIconFromFile( QString const & _filename, bool isFullName )
}
if ( info.isFile() ) {
QImage img( fileName );
auto iconSize = getOptimalIconSize();
QPixmap img( fileName );
if ( !img.isNull() ) {
// Load successful
// Apply the color key
#if ( QT_VERSION >= QT_VERSION_CHECK( 6, 0, 0 ) )
img.setAlphaChannel( img.createMaskFromColor( QColor( 192, 192, 192 ).rgb(), Qt::MaskOutColor ) );
#endif
auto result = img.scaled( { iconSize, iconSize }, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation );
dictionaryIcon = QIcon( QPixmap::fromImage( result ) );
dictionaryIcon = QIcon( result );
return !dictionaryIcon.isNull();
}
@ -293,6 +290,8 @@ bool Class::loadIconFromText( QString iconUrl, QString const & text )
QImage img( iconUrl );
if ( !img.isNull() ) {
auto iconSize = getOptimalIconSize();
QImage result = img.scaled( { iconSize, iconSize }, Qt::KeepAspectRatioByExpanding, Qt::SmoothTransformation );
QPainter painter( &result );

3
src/dict/dictionary.hh
View file

@ -12,6 +12,7 @@
#include <QObject>
#include <QString>
#include <QWaitCondition>
#include <QGuiApplication>
#include "config.hh"
#include "ex.hh"
@ -320,7 +321,7 @@ protected:
// By default set icon to empty
virtual void loadIcon() noexcept;
const int iconSize = 64;
static int getOptimalIconSize();
// Load icon from filename directly if isFullName == true
// else treat filename as name without extension

7
src/ui/dictionarybar.cc
View file

@ -19,12 +19,7 @@ DictionaryBar::DictionaryBar( QWidget * parent,
editDictionaryCommand( _editDictionaryCommand ),
maxDictionaryRefsInContextMenu( maxDictionaryRefsInContextMenu_ )
{
auto iconWidth = this->size().width();
auto iconHeight = this->size().height();
normalIconSize = { std::max( iconWidth, iconHeight ), std::max( iconWidth, iconHeight ) };
normalIconSize = { this->iconSize().height(), this->iconSize().height() };
setObjectName( "dictionaryBar" );