// INTERNAL INCLUDES
#include <dali-toolkit/internal/text/multi-language-helper-functions.h>
+#include <dali-toolkit/devel-api/styling/style-manager-devel.h>
namespace Dali
{
#endif
const Dali::Toolkit::Text::Character UTF32_A = 0x0041;
+
}
namespace Text
MultilanguageSupport::MultilanguageSupport()
: mDefaultFontPerScriptCache(),
- mValidFontsPerScriptCache()
+ mValidFontsPerScriptCache(),
+ mSlotDelegate( this )
{
// Initializes the default font cache to zero (invalid font).
// Reserves space to cache the default fonts and access them with the script as an index.
- mDefaultFontPerScriptCache.Resize( TextAbstraction::UNKNOWN, NULL );
+ mDefaultFontPerScriptCache.Resize( TextAbstraction::UNKNOWN + 1, NULL );
// Initializes the valid fonts cache to NULL (no valid fonts).
// Reserves space to cache the valid fonts and access them with the script as an index.
- mValidFontsPerScriptCache.Resize( TextAbstraction::UNKNOWN, NULL );
+ mValidFontsPerScriptCache.Resize( TextAbstraction::UNKNOWN + 1, NULL );
+
+ // Add custom font directory
+ Toolkit::StyleManager styleManager = Toolkit::StyleManager::Get();
+ if( styleManager )
+ {
+ std::string path;
+ Property::Map config = Toolkit::DevelStyleManager::GetConfigurations( styleManager );
+ if( config["customFontDirectory"].Get( path ) )
+ {
+ TextAbstraction::FontClient fontClient = TextAbstraction::FontClient::Get();
+ fontClient.AddCustomFontDirectory( path.c_str() );
+ }
+ }
+
+ // Connect LanguageChangedSignal to clear caches when locale is changed.
+ Dali::Adaptor::Get().LanguageChangedSignal().Connect( mSlotDelegate, &Dali::Toolkit::Text::Internal::MultilanguageSupport::OnLanguageChanged );
+}
+
+void MultilanguageSupport::OnLanguageChanged( Dali::Adaptor& adaptor )
+{
+ // When locale is changed, font configuration might provide a different font list.
+ // In this case, the original cached font might not be valid for same script.
+ // Therefore, we need to clear caches.
+ TextAbstraction::FontClient fontClient = TextAbstraction::FontClient::Get();
+ fontClient.ClearCache();
+
+ mDefaultFontPerScriptCache.Clear();
+ mValidFontsPerScriptCache.Clear();
+ mDefaultFontPerScriptCache.Resize( TextAbstraction::UNKNOWN + 1, NULL );
+ mValidFontsPerScriptCache.Resize( TextAbstraction::UNKNOWN + 1, NULL );
}
MultilanguageSupport::~MultilanguageSupport()
currentScriptRun.characterRun.numberOfCharacters += numberOfAllScriptCharacters;
// Store the script run.
- if( TextAbstraction::UNKNOWN == currentScriptRun.script )
- {
- currentScriptRun.script = TextAbstraction::LATIN;
- }
scripts.Insert( scripts.Begin() + scriptIndex, currentScriptRun );
++scriptIndex;
else if( ( TextAbstraction::UNKNOWN == currentScriptRun.script ) &&
( TextAbstraction::EMOJI == script ) )
{
- currentScriptRun.script = TextAbstraction::LATIN;
currentScriptRun.characterRun.numberOfCharacters += numberOfAllScriptCharacters;
numberOfAllScriptCharacters = 0u;
}
if( 0u != currentScriptRun.characterRun.numberOfCharacters )
{
- if( TextAbstraction::UNKNOWN == currentScriptRun.script )
- {
- // There are only white spaces in the last script. Set the latin script.
- currentScriptRun.script = TextAbstraction::LATIN;
- }
-
// Store the last run.
scripts.Insert( scripts.Begin() + scriptIndex, currentScriptRun );
++scriptIndex;
FontId previousFontId = 0u;
bool isPreviousEmojiScript = false;
- // Whether it's the first set of characters to be validated.
- // Used in case the paragraph starts with characters common to all scripts.
- bool isFirstSetToBeValidated = true;
+ // Description of fallback font which is selected at current iteration.
+ TextAbstraction::FontDescription selectedFontDescription;
CharacterIndex lastCharacter = startIndex + numberOfCharacters;
for( Length index = startIndex; index < lastCharacter; ++index )
{
// Get the current character.
const Character character = *( textBuffer + index );
+ bool needSoftwareBoldening = false;
+ bool needSoftwareItalic = false;
+ // new description for current character
TextAbstraction::FontDescription currentFontDescription;
TextAbstraction::PointSize26Dot6 currentFontPointSize = defaultFontPointSize;
bool isDefaultFont = true;
description.path.c_str() );
}
#endif
- if( script == TextAbstraction::UNKNOWN )
- {
- script = TextAbstraction::LATIN;
- }
// Validate whether the current character is supported by the given font.
bool isValidFont = false;
fontId = fontClient.FindDefaultFont( UTF32_A, currentFontPointSize );
}
- // Cache the font.
- if( NULL == defaultFontsPerScript )
+ if ( script != TextAbstraction::UNKNOWN )
{
- defaultFontsPerScript = *( defaultFontPerScriptCacheBuffer + script );
-
+ // Cache the font if it is not an unknown script
if( NULL == defaultFontsPerScript )
{
- defaultFontsPerScript = new DefaultFonts();
- *( defaultFontPerScriptCacheBuffer + script ) = defaultFontsPerScript;
+ defaultFontsPerScript = *( defaultFontPerScriptCacheBuffer + script );
+
+ if( NULL == defaultFontsPerScript )
+ {
+ defaultFontsPerScript = new DefaultFonts();
+ *( defaultFontPerScriptCacheBuffer + script ) = defaultFontsPerScript;
+ }
}
+ defaultFontsPerScript->Cache( currentFontDescription, fontId );
}
- defaultFontsPerScript->Cache( currentFontDescription, fontId );
}
} // !isValidFont (3)
} // !isValidFont (2)
}
#endif
- if( isFirstSetToBeValidated && !isCommonScript )
+ if( fontId != currentFontRun.fontId )
{
- currentFontRun.fontId = fontId;
- isFirstSetToBeValidated = false;
+ fontClient.GetDescription(fontId,selectedFontDescription);
}
+ // Developer sets bold to character but selected font cannot support it
+ needSoftwareBoldening = ( currentFontDescription.weight >= TextAbstraction::FontWeight::BOLD ) && ( selectedFontDescription.weight < TextAbstraction::FontWeight::BOLD );
+
+ // Developer sets italic to character but selected font cannot support it
+ needSoftwareItalic = ( currentFontDescription.slant == TextAbstraction::FontSlant::ITALIC ) && ( selectedFontDescription.slant < TextAbstraction::FontSlant::ITALIC );
+
// The font is now validated.
if( ( fontId != currentFontRun.fontId ) ||
- isNewParagraphCharacter )
+ isNewParagraphCharacter ||
+ // If font id is same as previous but style is diffrent, initialize new one
+ ( ( fontId == currentFontRun.fontId ) && ( ( needSoftwareBoldening != currentFontRun.softwareBold ) || ( needSoftwareItalic != currentFontRun.softwareItalic ) ) ) )
{
// Current run needs to be stored and a new one initialized.
currentFontRun.characterRun.characterIndex = currentFontRun.characterRun.characterIndex + currentFontRun.characterRun.numberOfCharacters;
currentFontRun.characterRun.numberOfCharacters = 0u;
currentFontRun.fontId = fontId;
-
- if( isNewParagraphCharacter )
- {
- isFirstSetToBeValidated = true;
- }
+ currentFontRun.softwareItalic = needSoftwareItalic;
+ currentFontRun.softwareBold = needSoftwareBoldening;
}
// Add one more character to the run.