opt: generate dictionary icon from dictionary name (#2025)

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: shenleban tongying <shenlebantongying@gmail.com>

src/common/dictionary_icon_name.cc

@@ -0,0 +1,32 @@
+#include "dictionary_icon_name.hh"
+#include <QMutexLocker>
+
+
+QString Icons::DictionaryIconName::getIconName( const QString & dictionaryName )
+{
+  if ( dictionaryName.isEmpty() ) {
+    return {};
+  }
+  QMutexLocker _( &_mutex );
+
+  auto it = _dictionaryIconNames.contains( dictionaryName );
+  if ( it ) {
+    return _dictionaryIconNames.value( dictionaryName );
+  }
+  //get the first character of the dictionary name
+  QString name                  = dictionaryName.at( 0 ).toUpper();
+  auto it1                      = _iconDictionaryNames.contains( name );
+  std::vector< QString > vector = {};
+  if ( it1 ) {
+    vector = _iconDictionaryNames.value( name );
+    vector.emplace_back( dictionaryName );
+  }
+  else {
+    vector.emplace_back( dictionaryName );
+    _iconDictionaryNames.insert( name, vector );
+  }
+
+  name = name + QString::number( vector.size() );
+  _dictionaryIconNames.insert( dictionaryName, name );
+  return name;
+}

src/common/dictionary_icon_name.hh

@@ -0,0 +1,24 @@
+#pragma once
+
+#include <string>
+#include <QMap>
+#include <vector>
+#include <mutex>
+#include <QString>
+#include <QMutex>
+
+namespace Icons {
+//use dictionary name's (first character + the order number) to represent the dictionary name in the icon image.
+class DictionaryIconName
+{
+  //map icon name to dictionary names;
+  QMap< QString, std::vector< QString > > _iconDictionaryNames;
+  //map dictionary name to icon name;
+  QMap< QString, QString > _dictionaryIconNames;
+
+  QMutex _mutex;
+
+public:
+  QString getIconName( const QString & dictionaryName );
+};
+} // namespace Icons

src/common/globalbroadcaster.cc

@@ -38,4 +38,22 @@ bool GlobalBroadcaster::existedInWhitelist( QString url ) const
 {
   return whitelist.contains( url );
 }
+
+
+QString GlobalBroadcaster::getAbbrName( QString const & text )
+{
+  if ( text.isEmpty() ) {
+    return {};
+  }
+  //remove whitespace,number,mark,puncuation,symbol
+  QString simplified = text;
+  simplified.remove(
+    QRegularExpression( R"([\p{Z}\p{N}\p{M}\p{P}\p{S}])", QRegularExpression::UseUnicodePropertiesOption ) );
+
+  if ( simplified.isEmpty() ) {
+    return {};
+  }
+
+  return _icon_names.getIconName( simplified );
+}
 // namespace global

src/common/globalbroadcaster.hh

@@ -5,6 +5,7 @@
 #include "config.hh"
 #include "pronounceengine.hh"
 #include <QCache>
+#include "dictionary_icon_name.hh"
 
 struct ActiveDictIds
 {
@@ -25,6 +26,7 @@ class GlobalBroadcaster: public QObject
 
   Config::Preferences * preference;
   QSet< QString > whitelist;
+  Icons::DictionaryIconName _icon_names;
 
 public:
   void setPreference( Config::Preferences * _pre );
@@ -40,6 +42,7 @@ public:
   QMap< QString, QSet< QString > > folderFavoritesMap;
   QMap< unsigned, QString > groupFolderMap;
   PronounceEngine pronounce_engine;
+  QString getAbbrName( QString const & text );
 signals:
   void dictionaryChanges( ActiveDictIds ad );
   void dictionaryClear( ActiveDictIds ad );

src/dict/dictionary.cc

@@ -19,6 +19,7 @@
 #include <QRegularExpression>
 #include "utils.hh"
 #include "zipfile.hh"
+#include <array>
 
 namespace Dictionary {
 
@@ -291,7 +292,7 @@ bool Class::loadIconFromFile( QString const & _filename, bool isFullName )
   return false;
 }
 
-bool Class::loadIconFromText( QString iconUrl, QString const & text )
+bool Class::loadIconFromText( const QString & iconUrl, QString const & text )
 {
   if ( text.isEmpty() ) {
     return false;
@@ -308,7 +309,7 @@ bool Class::loadIconFromText( QString iconUrl, QString const & text )
     painter.setCompositionMode( QPainter::CompositionMode_SourceAtop );
 
     QFont font = painter.font();
-    //the text should be a little smaller than the icon
+    //the orderNum should be a little smaller than the icon
     font.setPixelSize( iconSize * 0.6 );
     font.setWeight( QFont::Bold );
     painter.setFont( font );
@@ -318,8 +319,21 @@ bool Class::loadIconFromText( QString iconUrl, QString const & text )
     //select a single char.
     auto abbrName = getAbbrName( text );
 
-    painter.setPen( QColor( 4, 57, 108, 200 ) );
-    painter.drawText( rectangle, Qt::AlignCenter, abbrName );
+    painter.setPen( intToFixedColor( qHash( abbrName ) ) );
+
+    // Draw first character
+    painter.drawText( rectangle, Qt::AlignCenter, abbrName.at( 0 ) );
+
+    //the orderNum should be a little smaller than the icon
+    font.setPixelSize( iconSize * 0.4 );
+    QFontMetrics fm1( font );
+    const QString & orderNum = abbrName.mid( 1 );
+    int orderNumberWidth     = fm1.horizontalAdvance( orderNum );
+
+    painter.setFont( font );
+    painter.drawText( rectangle.x() + rectangle.width() - orderNumberWidth * 1.2,
+                      rectangle.y() + rectangle.height(),
+                      orderNum );
 
     painter.end();
 
@@ -330,35 +344,30 @@ bool Class::loadIconFromText( QString iconUrl, QString const & text )
   return false;
 }
 
+QColor Class::intToFixedColor( int index )
+{
+  // Predefined list of colors
+  static const std::array colors = {
+    QColor( 255, 0, 0, 200 ),     // Red
+    QColor( 4, 57, 108, 200 ),    //Custom
+    QColor( 0, 255, 0, 200 ),     // Green
+    QColor( 0, 0, 255, 200 ),     // Blue
+    QColor( 255, 255, 0, 200 ),   // Yellow
+    QColor( 0, 255, 255, 200 ),   // Cyan
+    QColor( 255, 0, 255, 200 ),   // Magenta
+    QColor( 192, 192, 192, 200 ), // Gray
+    QColor( 255, 165, 0, 200 ),   // Orange
+    QColor( 128, 0, 128, 200 ),   // Violet
+    QColor( 128, 128, 0, 200 )    // Olive
+  };
+
+  // Use modulo operation to ensure index is within the range of the color list
+  return colors[ index % colors.size() ];
+}
+
 QString Class::getAbbrName( QString const & text )
 {
-  if ( text.isEmpty() ) {
-    return {};
-  }
-  //remove whitespace,number,mark,puncuation,symbol
-  QString simplified = text;
-  simplified.remove(
-    QRegularExpression( R"([\p{Z}\p{N}\p{M}\p{P}\p{S}])", QRegularExpression::UseUnicodePropertiesOption ) );
-
-  if ( simplified.isEmpty() ) {
-    return {};
-  }
-  int index = qHash( simplified ) % simplified.size();
-
-  QString abbrName;
-  if ( !Utils::isCJKChar( simplified.at( index ).unicode() ) ) {
-    // take two chars.
-    abbrName = simplified.mid( index, 2 );
-    if ( abbrName.size() == 1 ) {
-      //make up two characters.
-      abbrName = abbrName + simplified.at( 0 );
-    }
-  }
-  else {
-    abbrName = simplified.mid( index, 1 );
-  }
-
-  return abbrName;
+  return GlobalBroadcaster::instance()->getAbbrName( text );
 }
 
 void Class::isolateCSS( QString & css, QString const & wrapperSelector )

src/dict/dictionary.hh

@@ -318,10 +318,10 @@ protected:
   // Load icon from filename directly if isFullName == true
   // else treat filename as name without extension
   bool loadIconFromFile( QString const & filename, bool isFullName = false );
-  bool loadIconFromText( QString iconUrl, QString const & text );
-
-  QString getAbbrName( QString const & text );
+  bool loadIconFromText( const QString & iconUrl, QString const & text );
 
+  static QString getAbbrName( QString const & text );
+  static QColor intToFixedColor( int index );
   /// Make css content usable only for articles from this dictionary
   void isolateCSS( QString & css, QString const & wrapperSelector = QString() );