X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=dali-toolkit%2Finternal%2Ftext%2Frendering%2Ftext-typesetter.cpp;h=2e01c18cb64d49bf2d2fd003532e2914b5d9cc82;hb=177a529f5796ca4abe24fc5eafd7cddff423be3b;hp=152b7321c5360482d59a8cdda75a15ee6c84a502;hpb=fa834a987e844fb79531954c882581624aef0e68;p=platform%2Fcore%2Fuifw%2Fdali-toolkit.git diff --git a/dali-toolkit/internal/text/rendering/text-typesetter.cpp b/dali-toolkit/internal/text/rendering/text-typesetter.cpp index 152b732..2e01c18 100644 --- a/dali-toolkit/internal/text/rendering/text-typesetter.cpp +++ b/dali-toolkit/internal/text/rendering/text-typesetter.cpp @@ -1,5 +1,5 @@ /* - * 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. @@ -25,6 +25,7 @@ // INTERNAL INCLUDES #include +#include #include namespace Dali @@ -275,6 +276,31 @@ bool IsGlyphUnderlined(GlyphIndex index, return false; } +bool doGlyphHaveStrikethrough(GlyphIndex index, + const Vector& strikethroughRuns, + Vector4& strikethroughColor) +{ + for(Vector::ConstIterator it = strikethroughRuns.Begin(), + endIt = strikethroughRuns.End(); + it != endIt; + ++it) + { + const StrikethroughGlyphRun& run = *it; + + if((run.glyphRun.glyphIndex <= index) && (index < run.glyphRun.glyphIndex + run.glyphRun.numberOfGlyphs)) + { + if(run.isColorSet) + { + strikethroughColor = run.color; + } + + return true; + } + } + + return false; +} + /// Helper method to fetch the underline metrics for the specified font glyph void FetchFontDecorationlinesMetrics( TextAbstraction::FontClient& fontClient, @@ -372,15 +398,19 @@ void WriteColorToPixelBuffer( /// Draws the specified underline color to the buffer void DrawUnderline( - const Vector4& underlineColor, - const unsigned int bufferWidth, - const unsigned int bufferHeight, - GlyphData& glyphData, - const float baseline, - const float currentUnderlinePosition, - const float maxUnderlineThickness, - const float lineExtentLeft, - const float lineExtentRight) + const Vector4& underlineColor, + const unsigned int bufferWidth, + const unsigned int bufferHeight, + GlyphData& glyphData, + const float baseline, + const float currentUnderlinePosition, + const float maxUnderlineThickness, + const float lineExtentLeft, + const float lineExtentRight, + const Text::Underline::Type underlineType, + const float dashedUnderlineWidth, + const float dashedUnderlineGap, + const LineRun& line) { int underlineYOffset = glyphData.verticalOffset + baseline + currentUnderlinePosition; uint32_t* bitmapBuffer = reinterpret_cast(glyphData.bitmapBuffer.GetBuffer()); @@ -392,16 +422,67 @@ void DrawUnderline( // Do not write out of bounds. break; } + if(underlineType == Text::Underline::DASHED) + { + float dashWidth = dashedUnderlineWidth; + float dashGap = 0; - for(unsigned int x = glyphData.horizontalOffset + lineExtentLeft; x <= glyphData.horizontalOffset + lineExtentRight; x++) + for(unsigned int x = glyphData.horizontalOffset + lineExtentLeft; x <= glyphData.horizontalOffset + lineExtentRight; x++) + { + if(x > bufferWidth - 1) + { + // Do not write out of bounds. + break; + } + if(dashGap == 0 && dashWidth > 0) + { + WriteColorToPixelBuffer(glyphData, bitmapBuffer, underlineColor, x, y); + dashWidth--; + } + else if(dashGap < dashedUnderlineGap) + { + dashGap++; + } + else + { + //reset + dashWidth = dashedUnderlineWidth; + dashGap = 0; + } + } + } + else { - if(x > bufferWidth - 1) + for(unsigned int x = glyphData.horizontalOffset + lineExtentLeft; x <= glyphData.horizontalOffset + lineExtentRight; x++) + { + if(x > bufferWidth - 1) + { + // Do not write out of bounds. + break; + } + WriteColorToPixelBuffer(glyphData, bitmapBuffer, underlineColor, x, y); + } + } + } + if(underlineType == Text::Underline::DOUBLE) + { + int secondUnderlineYOffset = glyphData.verticalOffset - line.descender - maxUnderlineThickness; + for(unsigned int y = secondUnderlineYOffset; y < secondUnderlineYOffset + maxUnderlineThickness; y++) + { + if(y > bufferHeight - 1) { // Do not write out of bounds. break; } - - WriteColorToPixelBuffer(glyphData, bitmapBuffer, underlineColor, x, y); + for(unsigned int x = glyphData.horizontalOffset + lineExtentLeft; x <= glyphData.horizontalOffset + lineExtentRight; x++) + { + if(x > bufferWidth - 1) + { + // Do not write out of bounds. + break; + } + WriteColorToPixelBuffer(glyphData, bitmapBuffer, underlineColor, x, y); + } } } } @@ -845,6 +926,7 @@ Devel::PixelBuffer Typesetter::CreateImageBuffer(const unsigned int bufferWidth, // Whether to use the default color. const bool useDefaultColor = (NULL == colorsBuffer); const Vector4& defaultColor = mModel->GetDefaultColor(); + Vector4 currentStrikethroughColor; // Create and initialize the pixel buffer. GlyphData glyphData; @@ -858,6 +940,11 @@ Devel::PixelBuffer Typesetter::CreateImageBuffer(const unsigned int bufferWidth, TextAbstraction::FontClient fontClient = TextAbstraction::FontClient::Get(); Length hyphenIndex = 0; + const Character* textBuffer = mModel->GetTextBuffer(); + float calculatedAdvance = 0.f; + const Vector& glyphToCharacterMap = mModel->GetGlyphsToCharacters(); + const CharacterIndex* glyphToCharacterMapBuffer = glyphToCharacterMap.Begin(); + // Traverses the lines of the text. for(LineIndex lineIndex = 0u; lineIndex < modelNumberOfLines; ++lineIndex) { @@ -900,13 +987,16 @@ Devel::PixelBuffer Typesetter::CreateImageBuffer(const unsigned int bufferWidth, } } - const bool underlineEnabled = mModel->IsUnderlineEnabled(); - const Vector4& underlineColor = mModel->GetUnderlineColor(); - const float underlineHeight = mModel->GetUnderlineHeight(); - - const bool strikethroughEnabled = mModel->IsStrikethroughEnabled(); - const Vector4& strikethroughColor = mModel->GetStrikethroughColor(); - const float strikethroughHeight = mModel->GetStrikethroughHeight(); + const bool underlineEnabled = mModel->IsUnderlineEnabled(); + const Vector4& underlineColor = mModel->GetUnderlineColor(); + const float underlineHeight = mModel->GetUnderlineHeight(); + const Text::Underline::Type underlineType = mModel->GetUnderlineType(); + const float dashedUnderlineWidth = mModel->GetDashedUnderlineWidth(); + const float dashedUnderlineGap = mModel->GetDashedUnderlineGap(); + const bool strikethroughEnabled = mModel->IsStrikethroughEnabled(); + const Vector4& strikethroughColor = mModel->GetStrikethroughColor(); + const float strikethroughHeight = mModel->GetStrikethroughHeight(); + const float characterSpacing = mModel->GetCharacterSpacing(); // Get the underline runs. const Length numberOfUnderlineRuns = mModel->GetNumberOfUnderlineRuns(); @@ -914,6 +1004,12 @@ Devel::PixelBuffer Typesetter::CreateImageBuffer(const unsigned int bufferWidth, underlineRuns.Resize(numberOfUnderlineRuns); mModel->GetUnderlineRuns(underlineRuns.Begin(), 0u, numberOfUnderlineRuns); + // Get the strikethrough runs. + const Length numberOfStrikethroughRuns = mModel->GetNumberOfStrikethroughRuns(); + Vector strikethroughRuns; + strikethroughRuns.Resize(numberOfStrikethroughRuns); + mModel->GetStrikethroughRuns(strikethroughRuns.Begin(), 0u, numberOfStrikethroughRuns); + bool thereAreUnderlinedGlyphs = false; bool strikethroughGlyphsExist = false; @@ -986,10 +1082,12 @@ Devel::PixelBuffer Typesetter::CreateImageBuffer(const unsigned int bufferWidth, const bool underlineGlyph = underlineEnabled || IsGlyphUnderlined(glyphIndex, underlineRuns); thereAreUnderlinedGlyphs = thereAreUnderlinedGlyphs || underlineGlyph; - strikethroughGlyphsExist = strikethroughGlyphsExist || strikethroughEnabled; + currentStrikethroughColor = strikethroughColor; + const bool strikethroughGlyph = strikethroughEnabled || doGlyphHaveStrikethrough(glyphIndex, strikethroughRuns, currentStrikethroughColor); + strikethroughGlyphsExist = strikethroughGlyphsExist || strikethroughGlyph; // Are we still using the same fontId as previous - if((strikethroughEnabled || underlineGlyph) && (glyphInfo->fontId != lastUnderlinedFontId)) + if((strikethroughGlyph || underlineGlyph) && (glyphInfo->fontId != lastUnderlinedFontId)) { // We need to fetch fresh font underline metrics FetchFontDecorationlinesMetrics(fontClient, glyphInfo, currentUnderlinePosition, underlineHeight, currentUnderlineThickness, maxUnderlineThickness, lastUnderlinedFontId, strikethroughHeight, currentStrikethroughThickness, maxStrikethroughThickness); @@ -1001,7 +1099,8 @@ Devel::PixelBuffer Typesetter::CreateImageBuffer(const unsigned int bufferWidth, if(addHyphen) { GlyphInfo tempInfo = *(glyphsBuffer + elidedGlyphIndex); - position.x = position.x + tempInfo.advance - tempInfo.xBearing + glyphInfo->xBearing; + calculatedAdvance = GetCalculatedAdvance(*(textBuffer + (*(glyphToCharacterMapBuffer + elidedGlyphIndex))), characterSpacing, tempInfo.advance); + position.x = position.x + calculatedAdvance - tempInfo.xBearing + glyphInfo->xBearing; position.y = -glyphInfo->yBearing; } @@ -1111,7 +1210,7 @@ Devel::PixelBuffer Typesetter::CreateImageBuffer(const unsigned int bufferWidth, // Draw the underline from the leftmost glyph to the rightmost glyph if(thereAreUnderlinedGlyphs && style == Typesetter::STYLE_UNDERLINE) { - DrawUnderline(underlineColor, bufferWidth, bufferHeight, glyphData, baseline, currentUnderlinePosition, maxUnderlineThickness, lineExtentLeft, lineExtentRight); + DrawUnderline(underlineColor, bufferWidth, bufferHeight, glyphData, baseline, currentUnderlinePosition, maxUnderlineThickness, lineExtentLeft, lineExtentRight, underlineType, dashedUnderlineWidth, dashedUnderlineGap, line); } // Draw the background color from the leftmost glyph to the rightmost glyph @@ -1197,43 +1296,83 @@ Devel::PixelBuffer Typesetter::CombineImageBuffer(Devel::PixelBuffer topPixelBuf return combinedPixelBuffer; } +Devel::PixelBuffer Typesetter::ApplyUnderlineMarkupImageBuffer(Devel::PixelBuffer topPixelBuffer, const unsigned int bufferWidth, const unsigned int bufferHeight, bool ignoreHorizontalAlignment, Pixel::Format pixelFormat, int horizontalOffset, int verticalOffset) +{ + // Underline-tags (this is for Markup case) + // Get the underline runs. + const Length numberOfUnderlineRuns = mModel->GetNumberOfUnderlineRuns(); + Vector underlineRuns; + underlineRuns.Resize(numberOfUnderlineRuns); + mModel->GetUnderlineRuns(underlineRuns.Begin(), 0u, numberOfUnderlineRuns); + + // Iterate on the consecutive underlined glyph run and connect them into one chunk of underlined characters. + Vector::ConstIterator itGlyphRun = underlineRuns.Begin(); + Vector::ConstIterator endItGlyphRun = underlineRuns.End(); + GlyphIndex startGlyphIndex, endGlyphIndex; + + //The outer loop to iterate on the separated chunks of underlined glyph runs + while(itGlyphRun != endItGlyphRun) + { + startGlyphIndex = itGlyphRun->glyphIndex; + endGlyphIndex = startGlyphIndex; + //The inner loop to make a connected underline for the consecutive characters + do + { + endGlyphIndex += itGlyphRun->numberOfGlyphs; + itGlyphRun++; + } while(itGlyphRun != endItGlyphRun && itGlyphRun->glyphIndex == endGlyphIndex); + + endGlyphIndex--; + + // Create the image buffer for underline + Devel::PixelBuffer underlineImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_UNDERLINE, ignoreHorizontalAlignment, pixelFormat, horizontalOffset, verticalOffset, startGlyphIndex, endGlyphIndex); + // Combine the two buffers + topPixelBuffer = CombineImageBuffer(topPixelBuffer, underlineImageBuffer, bufferWidth, bufferHeight); + } + + return topPixelBuffer; +} + +Devel::PixelBuffer Typesetter::ApplyStrikethroughMarkupImageBuffer(Devel::PixelBuffer topPixelBuffer, const unsigned int bufferWidth, const unsigned int bufferHeight, bool ignoreHorizontalAlignment, Pixel::Format pixelFormat, int horizontalOffset, int verticalOffset) +{ + // strikethrough-tags (this is for Markup case) + // Get the strikethrough runs. + const Length numberOfStrikethroughRuns = mModel->GetNumberOfStrikethroughRuns(); + Vector strikethroughRuns; + strikethroughRuns.Resize(numberOfStrikethroughRuns); + mModel->GetStrikethroughRuns(strikethroughRuns.Begin(), 0u, numberOfStrikethroughRuns); + + // Iterate on the consecutive strikethrough glyph run and connect them into one chunk of strikethrough characters. + Vector::ConstIterator itGlyphRun = strikethroughRuns.Begin(); + Vector::ConstIterator endItGlyphRun = strikethroughRuns.End(); + GlyphIndex startGlyphIndex, endGlyphIndex; + + //The outer loop to iterate on the separated chunks of strikethrough glyph runs + while(itGlyphRun != endItGlyphRun) + { + startGlyphIndex = itGlyphRun->glyphRun.glyphIndex; + endGlyphIndex = startGlyphIndex + itGlyphRun->glyphRun.numberOfGlyphs - 1; + + // Create the image buffer for strikethrough + Devel::PixelBuffer strikethroughImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_STRIKETHROUGH, ignoreHorizontalAlignment, pixelFormat, horizontalOffset, verticalOffset, startGlyphIndex, endGlyphIndex); + // Combine the two buffers + topPixelBuffer = CombineImageBuffer(strikethroughImageBuffer, topPixelBuffer, bufferWidth, bufferHeight); + + itGlyphRun++; + } + + return topPixelBuffer; +} + Devel::PixelBuffer Typesetter::ApplyMarkupProcessorOnPixelBuffer(Devel::PixelBuffer topPixelBuffer, const unsigned int bufferWidth, const unsigned int bufferHeight, bool ignoreHorizontalAlignment, Pixel::Format pixelFormat, int horizontalOffset, int verticalOffset) { // Apply the markup-Processor if enabled const bool markupProcessorEnabled = mModel->IsMarkupProcessorEnabled(); if(markupProcessorEnabled) { - // Underline-tags (this is for Markup case) - // Get the underline runs. - const Length numberOfUnderlineRuns = mModel->GetNumberOfUnderlineRuns(); - Vector underlineRuns; - underlineRuns.Resize(numberOfUnderlineRuns); - mModel->GetUnderlineRuns(underlineRuns.Begin(), 0u, numberOfUnderlineRuns); - - // Iterate on the consecutive underlined glyph run and connect them into one chunk of underlined characters. - Vector::ConstIterator itGlyphRun = underlineRuns.Begin(); - Vector::ConstIterator endItGlyphRun = underlineRuns.End(); - GlyphIndex startGlyphIndex, endGlyphIndex; - - //The outer loop to iterate on the separated chunks of underlined glyph runs - while(itGlyphRun != endItGlyphRun) - { - startGlyphIndex = itGlyphRun->glyphIndex; - endGlyphIndex = startGlyphIndex; - //The inner loop to make a connected underline for the consecutive characters - do - { - endGlyphIndex += itGlyphRun->numberOfGlyphs; - itGlyphRun++; - } while(itGlyphRun != endItGlyphRun && itGlyphRun->glyphIndex == endGlyphIndex); - - endGlyphIndex--; + topPixelBuffer = ApplyUnderlineMarkupImageBuffer(topPixelBuffer, bufferWidth, bufferHeight, ignoreHorizontalAlignment, pixelFormat, horizontalOffset, verticalOffset); - // Create the image buffer for underline - Devel::PixelBuffer underlineImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_UNDERLINE, ignoreHorizontalAlignment, pixelFormat, horizontalOffset, verticalOffset, startGlyphIndex, endGlyphIndex); - // Combine the two buffers - topPixelBuffer = CombineImageBuffer(topPixelBuffer, underlineImageBuffer, bufferWidth, bufferHeight); - } + topPixelBuffer = ApplyStrikethroughMarkupImageBuffer(topPixelBuffer, bufferWidth, bufferHeight, ignoreHorizontalAlignment, pixelFormat, horizontalOffset, verticalOffset); } return topPixelBuffer;