#include <dali-toolkit/internal/text/bidirectional-support.h>
#include <dali-toolkit/internal/text/character-set-conversion.h>
#include <dali-toolkit/internal/text/color-segmentation.h>
+#include <dali-toolkit/internal/text/glyph-metrics-helper.h>
#include <dali-toolkit/internal/text/multi-language-support.h>
#include <dali-toolkit/internal/text/segmentation.h>
#include <dali-toolkit/internal/text/shaper.h>
Debug::Filter* gLogFilter = Debug::Filter::New(Debug::NoLogging, true, "LOG_TEXT_CONTROLS");
#endif
-/**
- * @brief Some characters can be shaped in more than one glyph.
- * This struct is used to retrieve metrics from these group of glyphs.
- */
-struct GlyphMetrics
-{
- GlyphMetrics()
- : fontHeight( 0.f ),
- advance( 0.f ),
- ascender( 0.f ),
- xBearing( 0.f )
- {}
-
- ~GlyphMetrics()
- {}
-
- float fontHeight; ///< The font's height of that glyphs.
- float advance; ///< The sum of all the advances of all the glyphs.
- float ascender; ///< The font's ascender.
- float xBearing; ///< The x bearing of the first glyph.
-};
-
} // namespace
namespace Dali
namespace Text
{
-/**
- * @brief Get some glyph's metrics of a group of glyphs formed as a result of shaping one character.
- *
- * @param[in] glyphIndex The index to the first glyph.
- * @param[in] numberOfGlyphs The number of glyphs.
- * @param[out] glyphMetrics Some glyph metrics (font height, advance, ascender and x bearing).
- * @param[in] visualModel The visual model.
- * @param[in] metrics Used to access metrics from FontClient.
- */
-void GetGlyphsMetrics( GlyphIndex glyphIndex,
- Length numberOfGlyphs,
- GlyphMetrics& glyphMetrics,
- VisualModelPtr& visualModel,
- MetricsPtr& metrics )
-{
- const GlyphInfo* glyphsBuffer = visualModel->mGlyphs.Begin();
-
- const GlyphInfo& firstGlyph = *( glyphsBuffer + glyphIndex );
-
- Text::FontMetrics fontMetrics;
- metrics->GetFontMetrics( firstGlyph.fontId, fontMetrics );
-
- glyphMetrics.fontHeight = fontMetrics.height;
- glyphMetrics.advance = firstGlyph.advance;
- glyphMetrics.ascender = fontMetrics.ascender;
- glyphMetrics.xBearing = firstGlyph.xBearing;
-
- for( unsigned int i = 1u; i < numberOfGlyphs; ++i )
- {
- const GlyphInfo& glyphInfo = *( glyphsBuffer + glyphIndex + i );
-
- glyphMetrics.advance += glyphInfo.advance;
- }
-}
-
EventData::EventData( DecoratorPtr decorator )
: mDecorator( decorator ),
mImfManager(),
const Length numberOfCharacters = utf32Characters.Count();
Vector<LineBreakInfo>& lineBreakInfo = mLogicalModel->mLineBreakInfo;
+ CharacterIndex startIndex = 0u;
+ Length requestedNumberOfCharacters = numberOfCharacters;
if( GET_LINE_BREAKS & operations )
{
// Retrieves the line break info. The line break info is used to split the text in 'paragraphs' to
lineBreakInfo.Resize( numberOfCharacters, TextAbstraction::LINE_NO_BREAK );
SetLineBreakInfo( utf32Characters,
+ startIndex,
+ requestedNumberOfCharacters,
lineBreakInfo );
+
+ // Create the paragraph info.
+ mLogicalModel->CreateParagraphInfo( startIndex,
+ requestedNumberOfCharacters );
}
Vector<WordBreakInfo>& wordBreakInfo = mLogicalModel->mWordBreakInfo;
wordBreakInfo.Resize( numberOfCharacters, TextAbstraction::WORD_NO_BREAK );
SetWordBreakInfo( utf32Characters,
+ startIndex,
+ requestedNumberOfCharacters,
wordBreakInfo );
}
{
// Retrieves the scripts used in the text.
multilanguageSupport.SetScripts( utf32Characters,
+ startIndex,
+ requestedNumberOfCharacters,
scripts );
}
scripts,
fontDescriptionRuns,
defaultFontId,
+ startIndex,
+ requestedNumberOfCharacters,
validFonts );
}
}
SetBidirectionalInfo( utf32Characters,
scripts,
lineBreakInfo,
+ startIndex,
+ requestedNumberOfCharacters,
bidirectionalInfo );
if( 0u != bidirectionalInfo.Count() )
{
- // This paragraph has right to left text. Some characters may need to be mirrored.
- // TODO: consider if the mirrored string can be stored as well.
-
- textMirrored = GetMirroredText( utf32Characters,
- mirroredUtf32Characters,
- bidirectionalInfo );
-
// Only set the character directions if there is right to left characters.
Vector<CharacterDirection>& directions = mLogicalModel->mCharacterDirections;
- directions.Resize( numberOfCharacters );
-
GetCharactersDirection( bidirectionalInfo,
+ numberOfCharacters,
+ startIndex,
+ requestedNumberOfCharacters,
directions );
+
+ // This paragraph has right to left text. Some characters may need to be mirrored.
+ // TODO: consider if the mirrored string can be stored as well.
+
+ textMirrored = GetMirroredText( utf32Characters,
+ directions,
+ bidirectionalInfo,
+ startIndex,
+ requestedNumberOfCharacters,
+ mirroredUtf32Characters );
}
else
{
Vector<GlyphIndex> newParagraphGlyphs;
newParagraphGlyphs.Reserve( numberOfParagraphs );
+ GlyphIndex startGlyphIndex = 0u;
if( SHAPE_TEXT & operations )
{
const Vector<Character>& textToShape = textMirrored ? mirroredUtf32Characters : utf32Characters;
lineBreakInfo,
scripts,
validFonts,
+ startIndex,
+ startGlyphIndex,
+ requestedNumberOfCharacters,
glyphs,
glyphsToCharactersMap,
charactersPerGlyph,
newParagraphGlyphs );
// Create the 'number of glyphs' per character and the glyph to character conversion tables.
- mVisualModel->CreateGlyphsPerCharacterTable( numberOfCharacters );
- mVisualModel->CreateCharacterToGlyphTable( numberOfCharacters );
+ mVisualModel->CreateGlyphsPerCharacterTable( startIndex, startGlyphIndex, numberOfCharacters );
+ mVisualModel->CreateCharacterToGlyphTable( startIndex, startGlyphIndex, numberOfCharacters );
}
const Length numberOfGlyphs = glyphs.Count();
if( GET_GLYPH_METRICS & operations )
{
- GlyphInfo* glyphsBuffer = glyphs.Begin();
+ GlyphInfo* glyphsBuffer = glyphs.Begin() + startGlyphIndex;
mMetrics->GetGlyphMetrics( glyphsBuffer, numberOfGlyphs );
// Update the width and advance of all new paragraph characters.
if( Gesture::Started == state ||
Gesture::Continuing == state )
{
- const Vector2& actualSize = mVisualModel->GetActualSize();
+ const Vector2& actualSize = mVisualModel->GetLayoutSize();
const Vector2 currentScroll = mEventData->mScrollPosition;
if( mEventData->mHorizontalScrollingEnabled )
else if( HANDLE_SCROLLING == state )
{
const float xSpeed = event.p2.mFloat;
- const Vector2& actualSize = mVisualModel->GetActualSize();
+ const Vector2& actualSize = mVisualModel->GetLayoutSize();
const Vector2 currentScrollPosition = mEventData->mScrollPosition;
mEventData->mScrollPosition.x += xSpeed;
// Get the glyphs per character table.
const Length* const glyphsPerCharacterBuffer = mVisualModel->mGlyphsPerCharacter.Begin();
+ // Get the glyph's info buffer.
+ const GlyphInfo* const glyphInfoBuffer = mVisualModel->mGlyphs.Begin();
+
// If the vector is void, there is no right to left characters.
const bool hasRightToLeftCharacters = NULL != visualToLogicalBuffer;
GetGlyphsMetrics( firstLogicalGlyphIndex,
numberOfGlyphs,
glyphMetrics,
- mVisualModel,
+ glyphInfoBuffer,
mMetrics );
// Get the position of the first glyph.
const Length* const charactersPerGlyphBuffer = mVisualModel->mCharactersPerGlyph.Begin();
const CharacterIndex* const glyphsToCharactersBuffer = mVisualModel->mGlyphsToCharacters.Begin();
const Vector2* const glyphPositionsBuffer = mVisualModel->mGlyphPositions.Begin();
+ const GlyphInfo* const glyphInfoBuffer = mVisualModel->mGlyphs.Begin();
// Convert the cursor position into the glyph position.
const GlyphIndex primaryGlyphIndex = *( charactersToGlyphBuffer + index );
GetGlyphsMetrics( primaryGlyphIndex,
primaryNumberOfGlyphs,
glyphMetrics,
- mVisualModel,
+ glyphInfoBuffer,
mMetrics );
// Whether to add the glyph's advance to the cursor position.
GetGlyphsMetrics( secondaryGlyphIndex,
secondaryNumberOfGlyphs,
glyphMetrics,
- mVisualModel,
+ glyphInfoBuffer,
mMetrics );
// Set the secondary cursor's position.
cursorInfo.secondaryPosition.x = -glyphMetrics.xBearing + secondaryPosition.x + ( isCurrentRightToLeft ? 0.f : glyphMetrics.advance );
cursorInfo.secondaryPosition.y = cursorInfo.lineHeight - cursorInfo.secondaryCursorHeight - line.descender - ( glyphMetrics.fontHeight - glyphMetrics.ascender );
}
+
+ if( LayoutEngine::MULTI_LINE_BOX == mLayoutEngine.GetLayout() )
+ {
+ // If the text is editable and multi-line, the cursor position after a white space shouldn't exceed the boundaries of the text control.
+
+ // Note the white spaces laid-out at the end of the line might exceed the boundaries of the control.
+ // The reason is a wrapped line must not start with a white space so they are laid-out at the end of the line.
+
+ if( 0.f > cursorInfo.primaryPosition.x )
+ {
+ cursorInfo.primaryPosition.x = 0.f;
+ }
+
+ const float edgeWidth = mVisualModel->mControlSize.width - static_cast<float>( mEventData->mDecorator->GetCursorWidth() );
+ if( cursorInfo.primaryPosition.x > edgeWidth )
+ {
+ cursorInfo.primaryPosition.x = edgeWidth;
+ }
+ }
}
CharacterIndex Controller::Impl::CalculateNewCursorIndex( CharacterIndex index ) const
const float positionEnd = position.x + ( mEventData->mDecorator ? mEventData->mDecorator->GetCursorWidth() : 0.f );
// Transform the position to decorator coords.
- const float offset = mEventData->mScrollPosition.x + mAlignmentOffset.x;
+ const float alignment = IsShowingRealText() ? mAlignmentOffset.x : 0.f;
+ const float offset = mEventData->mScrollPosition.x + alignment;
const float decoratorPositionBegin = position.x + offset;
const float decoratorPositionEnd = positionEnd + offset;
if( decoratorPositionBegin < 0.f )
{
- mEventData->mScrollPosition.x = -position.x - mAlignmentOffset.x;
+ mEventData->mScrollPosition.x = -position.x - alignment;
}
else if( decoratorPositionEnd > mVisualModel->mControlSize.width )
{
- mEventData->mScrollPosition.x = mVisualModel->mControlSize.width - positionEnd - mAlignmentOffset.x;
+ mEventData->mScrollPosition.x = mVisualModel->mControlSize.width - positionEnd - alignment;
}
}
// Calculate the offset to match the cursor position before the character was deleted.
mEventData->mScrollPosition.x = currentCursorPosition.x - cursorInfo.primaryPosition.x - mAlignmentOffset.x;
- ClampHorizontalScroll( mVisualModel->GetActualSize() );
+ ClampHorizontalScroll( mVisualModel->GetLayoutSize() );
}
void Controller::Impl::RequestRelayout()
projects / platform / core / uifw / dali-toolkit.git / blobdiff