Vector<ScriptRun>::ConstIterator scriptRunEndIt = scripts.End();
bool isNewParagraphCharacter = false;
- FontId currentFontId = 0u;
- FontId previousFontId = 0u;
bool isPreviousEmojiScript = false;
+ // 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;
// Get the font for the current character.
FontId fontId = fontClient.GetFontId( currentFontDescription, currentFontPointSize );
- currentFontId = fontId;
// Get the script for the current character.
Script script = GetScript( index,
// supports the 'white space'. However, that font may not support the DEVANAGARI script.
isCommonScript = TextAbstraction::IsCommonScript( character );
- if( isCommonScript )
+ // Check in the valid fonts cache.
+ ValidateFontsPerScript* validateFontsPerScript = *( validFontsPerScriptCacheBuffer + script );
+
+ if( NULL != validateFontsPerScript )
{
- if( isValidCachedDefaultFont &&
- ( isDefaultFont || ( currentFontId == previousFontId ) ) &&
- !isEmojiScript )
+ // This cache stores valid fonts set by the user.
+ isValidFont = validateFontsPerScript->IsValidFont( fontId );
+
+ // It may happen that a validated font for a script doesn't have all the glyphs for that script.
+ // i.e a font validated for the CJK script may contain glyphs for the chinese language but not for the Japanese.
+ if( isValidFont )
{
- // At this point the character common for all scripts has no font assigned.
- // If there is a valid previously cached default font for it, use that one.
- fontId = cachedDefaultFontId;
+ // Checks if the current character is supported by the font is needed.
+ isValidFont = fontClient.IsCharacterSupportedByFont( fontId, character );
}
}
- else
+
+ if( !isValidFont ) // (2)
{
- // Check in the valid fonts cache.
- ValidateFontsPerScript* validateFontsPerScript = *( validFontsPerScriptCacheBuffer + script );
+ // The selected font is not stored in any cache.
+
+ // Checks if the current character is supported by the selected font.
+ isValidFont = fontClient.IsCharacterSupportedByFont( fontId, character );
- if( NULL != validateFontsPerScript )
+ // Emojis are present in many monochrome fonts; prefer color by default.
+ if( isValidFont &&
+ isEmojiScript )
{
- // This cache stores valid fonts set by the user.
- isValidFont = validateFontsPerScript->IsValidFont( fontId );
+ const GlyphIndex glyphIndex = fontClient.GetGlyphIndex( fontId, character );
- // It may happen that a validated font for a script doesn't have all the glyphs for that script.
- // i.e a font validated for the CJK script may contain glyphs for the chinese language but not for the Japanese.
- if( isValidFont )
+ // For color emojis, the font is valid if the glyph is a color glyph (the bitmap is RGBA).
+ isValidFont = fontClient.IsColorGlyph( fontId, glyphIndex );
+ }
+
+ // If there is a valid font, cache it.
+ if( isValidFont && !isCommonScript )
+ {
+ if( NULL == validateFontsPerScript )
{
- // Checks if the current character is supported by the font is needed.
- isValidFont = fontClient.IsCharacterSupportedByFont( fontId, character );
+ validateFontsPerScript = new ValidateFontsPerScript();
+
+ *( validFontsPerScriptCacheBuffer + script ) = validateFontsPerScript;
}
+
+ validateFontsPerScript->mValidFonts.PushBack( fontId );
}
- if( !isValidFont ) // (2)
+ if( !isValidFont && ( fontId != cachedDefaultFontId ) && ( !TextAbstraction::IsNewParagraph( character ) )) // (3)
{
- // The selected font is not stored in any cache.
+ // The selected font by the user or the platform's default font has failed to validate the character.
- // Checks if the current character is supported by the selected font.
- isValidFont = fontClient.IsCharacterSupportedByFont( fontId, character );
-
- // Emojis are present in many monochrome fonts; prefer color by default.
- if( isValidFont &&
- isEmojiScript )
+ // Checks if the previously discarted cached default font supports the character.
+ bool isValidCachedFont = false;
+ if( isValidCachedDefaultFont )
{
- const GlyphIndex glyphIndex = fontClient.GetGlyphIndex( fontId, character );
-
- // For color emojis, the font is valid if the glyph is a color glyph (the bitmap is RGBA).
- isValidFont = fontClient.IsColorGlyph( fontId, glyphIndex );
+ isValidCachedFont = fontClient.IsCharacterSupportedByFont( cachedDefaultFontId, character );
}
- // If there is a valid font, cache it.
- if( isValidFont )
+ if( isValidCachedFont )
{
- if( NULL == validateFontsPerScript )
- {
- validateFontsPerScript = new ValidateFontsPerScript();
+ // Use the cached default font for the script if there is one.
+ fontId = cachedDefaultFontId;
+ }
+ else
+ {
+ // There is no valid cached default font for the script.
- *( validFontsPerScriptCacheBuffer + script ) = validateFontsPerScript;
- }
+ DefaultFonts* defaultFontsPerScript = NULL;
- validateFontsPerScript->mValidFonts.PushBack( fontId );
- }
+ // Emojis are present in many monochrome fonts; prefer color by default.
+ const bool preferColor = ( TextAbstraction::EMOJI == script );
- if( !isValidFont && ( fontId != cachedDefaultFontId ) ) // (3)
- {
- // The selected font by the user or the platform's default font has failed to validate the character.
+ // Find a fallback-font.
+ fontId = fontClient.FindFallbackFont( character,
+ currentFontDescription,
+ currentFontPointSize,
+ preferColor );
- // Checks if the previously discarted cached default font supports the character.
- bool isValidCachedFont = false;
- if( isValidCachedDefaultFont )
+ if( 0u == fontId )
{
- isValidCachedFont = fontClient.IsCharacterSupportedByFont( cachedDefaultFontId, character );
+ fontId = fontClient.FindDefaultFont( UTF32_A, currentFontPointSize );
}
- if( isValidCachedFont )
+ if ( !isCommonScript && (script != TextAbstraction::UNKNOWN) )
{
- // Use the cached default font for the script if there is one.
- fontId = cachedDefaultFontId;
- }
- else
- {
- // There is no valid cached default font for the script.
-
- DefaultFonts* defaultFontsPerScript = NULL;
-
- // Emojis are present in many monochrome fonts; prefer color by default.
- const bool preferColor = ( TextAbstraction::EMOJI == script );
-
- // Find a fallback-font.
- fontId = fontClient.FindFallbackFont( character,
- currentFontDescription,
- currentFontPointSize,
- preferColor );
-
- if( 0u == fontId )
- {
- // If the system does not support a suitable font, fallback to Latin
- defaultFontsPerScript = *( defaultFontPerScriptCacheBuffer + TextAbstraction::LATIN );
- if( NULL != defaultFontsPerScript )
- {
- fontId = defaultFontsPerScript->FindFont( fontClient,
- currentFontDescription,
- currentFontPointSize );
- }
- }
-
- if( 0u == fontId )
+ // Cache the font if it is not an unknown script
+ if( NULL == defaultFontsPerScript )
{
- fontId = fontClient.FindDefaultFont( UTF32_A, currentFontPointSize );
- }
+ defaultFontsPerScript = *( defaultFontPerScriptCacheBuffer + script );
- if ( script != TextAbstraction::UNKNOWN )
- {
- // Cache the font if it is not an unknown script
if( NULL == defaultFontsPerScript )
{
- defaultFontsPerScript = *( defaultFontPerScriptCacheBuffer + script );
-
- if( NULL == defaultFontsPerScript )
- {
- defaultFontsPerScript = new DefaultFonts();
- *( defaultFontPerScriptCacheBuffer + script ) = defaultFontsPerScript;
- }
+ defaultFontsPerScript = new DefaultFonts();
+ *( defaultFontPerScriptCacheBuffer + script ) = defaultFontsPerScript;
}
- defaultFontsPerScript->Cache( currentFontDescription, fontId );
}
+ defaultFontsPerScript->Cache( currentFontDescription, fontId );
}
- } // !isValidFont (3)
- } // !isValidFont (2)
- } // !isCommonScript
+ }
+ } // !isValidFont (3)
+ } // !isValidFont (2)
} // !isValidFont (1)
#ifdef DEBUG_ENABLED
}
#endif
+ if( fontId != currentFontRun.fontId )
+ {
+ 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;
+ currentFontRun.softwareItalic = needSoftwareItalic;
+ currentFontRun.softwareBold = needSoftwareBoldening;
}
// Add one more character to the run.
// Whether the current character is a new paragraph character.
isNewParagraphCharacter = TextAbstraction::IsNewParagraph( character );
- previousFontId = currentFontId;
isPreviousEmojiScript = isEmojiScript;
} // end traverse characters.
projects / platform / core / uifw / dali-toolkit.git / blobdiff