/*
- * Copyright (c) 2021 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2022 Samsung Electronics Co., Ltd.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
#include <dali-toolkit/internal/text/bidirectional-support.h>
#include <dali-toolkit/internal/text/cursor-helper-functions.h>
#include <dali-toolkit/internal/text/glyph-metrics-helper.h>
+#include <dali-toolkit/internal/text/layouts/layout-engine-helper-functions.h>
#include <dali-toolkit/internal/text/layouts/layout-parameters.h>
namespace Dali
// However, the line descender has a negative value, hence the subtraction.
return lineRun.ascender - lineRun.descender + lineRun.lineSpacing;
}
+
namespace Layout
{
namespace
const float outlineWidth = static_cast<float>(parameters.textModel->GetOutlineWidth());
const GlyphIndex lastGlyphOfParagraphPlusOne = parameters.startGlyphIndex + parameters.numberOfGlyphs;
+ const float characterSpacing = parameters.textModel->mVisualModel->GetCharacterSpacing();
CharacterIndex characterLogicalIndex = 0u;
CharacterIndex characterVisualIndex = 0u;
+ float calculatedAdvance = 0.f;
+
// If there are characters in the second half of Line then the first visual index mapped from visualToLogicalMapSecondHalf
// Otherwise maps the first visual index from visualToLogicalMap.
// This is to initialize the first visual index.
{
const GlyphInfo& glyphInfo = *(glyphsBuffer + *(charactersToGlyphsBuffer + characterVisualIndex));
- whiteSpaceLengthEndOfLine += glyphInfo.advance;
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + characterVisualIndex), characterSpacing, glyphInfo.advance);
+ whiteSpaceLengthEndOfLine += calculatedAdvance;
++characterLogicalIndex;
characterVisualIndex = bidirectionalLineInfo.characterRunForSecondHalfLine.characterIndex + *(bidirectionalLineInfo.visualToLogicalMapSecondHalf + characterLogicalIndex);
{
const GlyphInfo& glyphInfo = *(glyphsBuffer + *(charactersToGlyphsBuffer + characterVisualIndex));
- whiteSpaceLengthEndOfLine += glyphInfo.advance;
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + characterVisualIndex), characterSpacing, glyphInfo.advance);
+ whiteSpaceLengthEndOfLine += calculatedAdvance;
++characterLogicalIndex;
characterVisualIndex = bidirectionalLineInfo.characterRun.characterIndex + *(bidirectionalLineInfo.visualToLogicalMap + characterLogicalIndex);
charactersPerGlyphBuffer);
GlyphMetrics glyphMetrics;
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + characterVisualIndex), characterSpacing, (*(glyphsBuffer + glyphIndex)).advance);
GetGlyphsMetrics(glyphIndex,
numberOfGLyphsInGroup,
glyphMetrics,
glyphsBuffer,
- mMetrics);
+ mMetrics,
+ calculatedAdvance);
float penX = -glyphMetrics.xBearing + mCursorWidth + outlineWidth;
characterLogicalIndex += *(charactersPerGlyphBuffer + glyphIndex + numberOfGLyphsInGroup - 1u);
GlyphMetrics glyphMetrics;
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + characterVisualIndex), characterSpacing, (*(glyphsBuffer + glyphIndex)).advance);
GetGlyphsMetrics(glyphIndex,
numberOfGLyphsInGroup,
glyphMetrics,
glyphsBuffer,
- mMetrics);
+ mMetrics,
+ calculatedAdvance);
if(isWhiteSpace)
{
characterLogicalIndex += *(charactersPerGlyphBuffer + glyphIndex + numberOfGLyphsInGroup - 1u);
GlyphMetrics glyphMetrics;
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + characterVisualIndex), characterSpacing, (*(glyphsBuffer + glyphIndex)).advance);
GetGlyphsMetrics(glyphIndex,
numberOfGLyphsInGroup,
glyphMetrics,
glyphsBuffer,
- mMetrics);
+ mMetrics,
+ calculatedAdvance);
if(isWhiteSpace)
{
float widthFirstHalf = ((ellipsisPosition != DevelText::EllipsisPosition::MIDDLE) ? targetWidth : targetWidth - std::floor(targetWidth / 2));
bool isSecondHalf = false;
+ // Character Spacing
+ const float characterSpacing = parameters.textModel->mVisualModel->GetCharacterSpacing();
+ float calculatedAdvance = 0.f;
+ Vector<CharacterIndex>& glyphToCharacterMap = parameters.textModel->mVisualModel->mGlyphsToCharacters;
+ const CharacterIndex* glyphToCharacterMapBuffer = glyphToCharacterMap.Begin();
GlyphMetrics glyphMetrics;
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + (*(glyphToCharacterMapBuffer + lineLayout.glyphIndex))), characterSpacing, (*(glyphsBuffer + lineLayout.glyphIndex)).advance);
GetGlyphsMetrics(lineLayout.glyphIndex,
numberOfGLyphsInGroup,
glyphMetrics,
glyphsBuffer,
- mMetrics);
+ mMetrics,
+ calculatedAdvance);
// Set the direction of the first character of the line.
lineLayout.characterIndex = *(glyphsToCharactersBuffer + lineLayout.glyphIndex);
charactersPerGlyphBuffer);
GlyphMetrics glyphMetrics;
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + (*(glyphToCharacterMapBuffer + glyphIndex))), characterSpacing, (*(glyphsBuffer + glyphIndex)).advance);
GetGlyphsMetrics(glyphIndex,
numberOfGLyphsInGroup,
glyphMetrics,
glyphsBuffer,
- mMetrics);
+ mMetrics,
+ calculatedAdvance);
const bool isLastGlyph = glyphIndex + numberOfGLyphsInGroup == totalNumberOfGlyphs;
if(isWhiteSpace)
{
// Add the length to the length of white spaces at the end of the line.
- tmpLineLayout.whiteSpaceLengthEndOfLine += glyphMetrics.advance; // The advance is used as the width is always zero for the white spaces.
+ tmpLineLayout.whiteSpaceLengthEndOfLine += glyphMetrics.advance;
+ // The advance is used as the width is always zero for the white spaces.
}
else
{
while(tmpLineLayout.length + tmpLineLayout.whiteSpaceLengthEndOfLine > targetWidth && glyphIndexToRemove < glyphIndex)
{
GlyphMetrics glyphMetrics;
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + (*(glyphToCharacterMapBuffer + glyphIndexToRemove))), characterSpacing, (*(glyphsBuffer + glyphIndexToRemove)).advance);
GetGlyphsMetrics(glyphIndexToRemove,
numberOfGLyphsInGroup,
glyphMetrics,
glyphsBuffer,
- mMetrics);
+ mMetrics,
+ calculatedAdvance);
const Length numberOfGLyphsInGroup = GetNumberOfGlyphsOfGroup(glyphIndexToRemove,
lastGlyphOfParagraphPlusOne,
const GlyphInfo& glyph = *(glyphsBuffer + startIndexForGlyph);
float penX = -glyph.xBearing + mCursorWidth + outlineWidth; //
- for(GlyphIndex i = 0u; i < numberOfGlyphs; ++i)
- {
- const GlyphInfo& glyph = *(glyphsBuffer + startIndexForGlyph + i);
- Vector2& position = *(glyphPositionsBuffer + startIndexForGlyphPositions + i);
-
- position.x = penX + glyph.xBearing;
- position.y = -glyph.yBearing;
-
- penX += (glyph.advance + interGlyphExtraAdvance);
- }
+ CalculateGlyphPositionsLTR(layoutParameters.textModel->mVisualModel,
+ layoutParameters.textModel->mLogicalModel,
+ interGlyphExtraAdvance,
+ numberOfGlyphs,
+ startIndexForGlyph, // startIndexForGlyph is the index of the first glyph in the line
+ startIndexForGlyphPositions,
+ glyphPositionsBuffer,
+ penX);
if(layout.isSplitToTwoHalves)
{
const Length numberOfGlyphsInSecondHalfLine = layout.numberOfGlyphsInSecondHalfLine;
const GlyphIndex startIndexForGlyphPositionsnSecondHalf = layout.glyphIndexInSecondHalfLine - layoutParameters.startGlyphIndex;
- for(GlyphIndex i = 0u; i < numberOfGlyphsInSecondHalfLine; ++i)
- {
- const GlyphInfo& glyph = *(glyphsBuffer + startIndexForGlyphInSecondHalf + i);
- Vector2& position = *(glyphPositionsBuffer + startIndexForGlyphPositionsnSecondHalf + i);
-
- position.x = penX + glyph.xBearing;
- position.y = -glyph.yBearing;
-
- penX += (glyph.advance + interGlyphExtraAdvance);
- }
+ CalculateGlyphPositionsLTR(layoutParameters.textModel->mVisualModel,
+ layoutParameters.textModel->mLogicalModel,
+ interGlyphExtraAdvance,
+ numberOfGlyphsInSecondHalfLine,
+ startIndexForGlyphInSecondHalf, // startIndexForGlyph is the index of the first glyph in the line
+ startIndexForGlyphPositionsnSecondHalf,
+ glyphPositionsBuffer,
+ penX);
}
}
LayoutBidiParameters& layoutBidiParameters,
const LineLayout& layout)
{
- const Character* const textBuffer = layoutParameters.textModel->mLogicalModel->mText.Begin();
const BidirectionalLineInfoRun& bidiLine = layoutParameters.textModel->mLogicalModel->mBidirectionalLineInfo[layoutBidiParameters.bidiLineIndex];
const GlyphInfo* const glyphsBuffer = layoutParameters.textModel->mVisualModel->mGlyphs.Begin();
const GlyphIndex* const charactersToGlyphsBuffer = layoutParameters.textModel->mVisualModel->mCharactersToGlyph.Begin();
- const Length* const glyphsPerCharacterBuffer = layoutParameters.textModel->mVisualModel->mGlyphsPerCharacter.Begin();
CharacterIndex characterLogicalIndex = 0u;
CharacterIndex characterVisualIndex = bidiLine.characterRunForSecondHalfLine.characterIndex + *(bidiLine.visualToLogicalMapSecondHalf + characterLogicalIndex);
if(layout.isSplitToTwoHalves)
{
- while(TextAbstraction::IsWhiteSpace(*(textBuffer + characterVisualIndex)))
- {
- const GlyphIndex glyphIndex = *(charactersToGlyphsBuffer + characterVisualIndex);
- const GlyphInfo& glyph = *(glyphsBuffer + glyphIndex);
-
- Vector2& position = *(glyphPositionsBuffer + glyphIndex - layoutParameters.startGlyphIndex);
- position.x = penX;
- position.y = -glyph.yBearing;
-
- penX += glyph.advance;
-
- ++characterLogicalIndex;
- characterVisualIndex = bidiLine.characterRun.characterIndex + *(bidiLine.visualToLogicalMap + characterLogicalIndex);
- }
+ CalculateGlyphPositionsRTL(layoutParameters.textModel->mVisualModel,
+ layoutParameters.textModel->mLogicalModel,
+ layoutBidiParameters.bidiLineIndex,
+ layoutParameters.startGlyphIndex,
+ glyphPositionsBuffer,
+ characterVisualIndex,
+ characterLogicalIndex,
+ penX);
}
if(characterLogicalIndex == bidiLine.characterRunForSecondHalfLine.numberOfCharacters)
characterLogicalIndex = 0u;
characterVisualIndex = bidiLine.characterRun.characterIndex + *(bidiLine.visualToLogicalMap + characterLogicalIndex);
- while(TextAbstraction::IsWhiteSpace(*(textBuffer + characterVisualIndex)))
- {
- const GlyphIndex glyphIndex = *(charactersToGlyphsBuffer + characterVisualIndex);
- const GlyphInfo& glyph = *(glyphsBuffer + glyphIndex);
-
- Vector2& position = *(glyphPositionsBuffer + glyphIndex - layoutParameters.startGlyphIndex);
- position.x = penX;
- position.y = -glyph.yBearing;
-
- penX += glyph.advance;
-
- ++characterLogicalIndex;
- characterVisualIndex = bidiLine.characterRun.characterIndex + *(bidiLine.visualToLogicalMap + characterLogicalIndex);
- }
+ CalculateGlyphPositionsRTL(layoutParameters.textModel->mVisualModel,
+ layoutParameters.textModel->mLogicalModel,
+ layoutBidiParameters.bidiLineIndex,
+ layoutParameters.startGlyphIndex,
+ glyphPositionsBuffer,
+ characterVisualIndex,
+ characterLogicalIndex,
+ penX);
}
const GlyphIndex glyphIndex = *(charactersToGlyphsBuffer + characterVisualIndex);
// Traverses the characters of the right to left paragraph.
if(layout.isSplitToTwoHalves && !extendedToSecondHalf)
{
- for(; characterLogicalIndex < bidiLine.characterRunForSecondHalfLine.numberOfCharacters;
- ++characterLogicalIndex)
- {
- // Convert the character in the logical order into the character in the visual order.
- const CharacterIndex characterVisualIndex = bidiLine.characterRunForSecondHalfLine.characterIndex + *(bidiLine.visualToLogicalMapSecondHalf + characterLogicalIndex);
-
- // Get the number of glyphs of the character.
- const Length numberOfGlyphs = *(glyphsPerCharacterBuffer + characterVisualIndex);
-
- for(GlyphIndex index = 0u; index < numberOfGlyphs; ++index)
- {
- // Convert the character in the visual order into the glyph in the visual order.
- const GlyphIndex glyphIndex = *(charactersToGlyphsBuffer + characterVisualIndex) + index;
-
- DALI_ASSERT_DEBUG(glyphIndex < layoutParameters.textModel->mVisualModel->mGlyphs.Count());
-
- const GlyphInfo& glyph = *(glyphsBuffer + glyphIndex);
- Vector2& position = *(glyphPositionsBuffer + glyphIndex - layoutParameters.startGlyphIndex);
-
- position.x = penX + glyph.xBearing;
- position.y = -glyph.yBearing;
-
- penX += (glyph.advance + layoutParameters.interGlyphExtraAdvance);
- }
- }
+ TraversesCharactersForGlyphPositionsRTL(layoutParameters.textModel->mVisualModel,
+ layoutParameters.textModel->mLogicalModel->mText.Begin(),
+ layoutParameters.startGlyphIndex,
+ layoutParameters.interGlyphExtraAdvance,
+ bidiLine.characterRunForSecondHalfLine,
+ bidiLine.visualToLogicalMapSecondHalf,
+ glyphPositionsBuffer,
+ characterLogicalIndex,
+ penX);
}
characterLogicalIndex = extendedToSecondHalf ? characterLogicalIndex : 0u;
- for(; characterLogicalIndex < bidiLine.characterRun.numberOfCharacters;
- ++characterLogicalIndex)
- {
- // Convert the character in the logical order into the character in the visual order.
- const CharacterIndex characterVisualIndex = bidiLine.characterRun.characterIndex + *(bidiLine.visualToLogicalMap + characterLogicalIndex);
-
- // Get the number of glyphs of the character.
- const Length numberOfGlyphs = *(glyphsPerCharacterBuffer + characterVisualIndex);
-
- for(GlyphIndex index = 0u; index < numberOfGlyphs; ++index)
- {
- // Convert the character in the visual order into the glyph in the visual order.
- const GlyphIndex glyphIndex = *(charactersToGlyphsBuffer + characterVisualIndex) + index;
- DALI_ASSERT_DEBUG(glyphIndex < layoutParameters.textModel->mVisualModel->mGlyphs.Count());
-
- const GlyphInfo& glyph = *(glyphsBuffer + glyphIndex);
- Vector2& position = *(glyphPositionsBuffer + glyphIndex - layoutParameters.startGlyphIndex);
-
- position.x = penX + glyph.xBearing;
- position.y = -glyph.yBearing;
-
- penX += (glyph.advance + layoutParameters.interGlyphExtraAdvance);
- }
- }
+ TraversesCharactersForGlyphPositionsRTL(layoutParameters.textModel->mVisualModel,
+ layoutParameters.textModel->mLogicalModel->mText.Begin(),
+ layoutParameters.startGlyphIndex,
+ layoutParameters.interGlyphExtraAdvance,
+ bidiLine.characterRun,
+ bidiLine.visualToLogicalMap,
+ glyphPositionsBuffer,
+ characterLogicalIndex,
+ penX);
}
/**
projects / platform / core / uifw / dali-toolkit.git / blobdiff