/*
- * 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.
// INTERNAL INCLUDES
#include <dali-toolkit/devel-api/controls/text-controls/text-label-devel.h>
+#include <dali-toolkit/internal/text/glyph-metrics-helper.h>
#include <dali-toolkit/internal/text/rendering/view-model.h>
namespace Dali
{
namespace
{
+const float HALF(0.5f);
/**
* @brief Data struct used to set the buffer of the glyph's bitmap into the final bitmap's buffer.
*/
return false;
}
+bool doGlyphHaveStrikethrough(GlyphIndex index,
+ const Vector<StrikethroughGlyphRun>& strikethroughRuns,
+ Vector4& strikethroughColor)
+{
+ for(Vector<StrikethroughGlyphRun>::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 FetchFontUnderlineMetrics(
+void FetchFontDecorationlinesMetrics(
TextAbstraction::FontClient& fontClient,
const GlyphInfo* const glyphInfo,
float& currentUnderlinePosition,
const float underlineHeight,
float& currentUnderlineThickness,
float& maxUnderlineThickness,
- FontId& lastUnderlinedFontId)
+ FontId& lastlinedFontId,
+ const float strikethroughHeight,
+ float& currentStrikethroughThickness,
+ float& maxStrikethroughThickness)
{
FontMetrics fontMetrics;
fontClient.GetFontMetrics(glyphInfo->fontId, fontMetrics);
}
}
+ if(fabsf(strikethroughHeight) < Math::MACHINE_EPSILON_1000)
+ {
+ // Ensure strikethrough will be at least a pixel high
+ if(currentStrikethroughThickness < 1.0f)
+ {
+ currentStrikethroughThickness = 1.0f;
+ }
+ else
+ {
+ currentStrikethroughThickness = ceil(currentStrikethroughThickness);
+ }
+ }
+
// The underline thickness should be the max underline thickness of all glyphs of the line.
if(currentUnderlineThickness > maxUnderlineThickness)
{
maxUnderlineThickness = currentUnderlineThickness;
}
+ // The strikethrough thickness should be the max strikethrough thickness of all glyphs of the line.
+ if(currentStrikethroughThickness > maxStrikethroughThickness)
+ {
+ maxStrikethroughThickness = currentStrikethroughThickness;
+ }
+
// Clamp the underline position at the font descender and check for ( as EFL describes it ) a broken font
if(currentUnderlinePosition > descender)
{
currentUnderlinePosition = 1.0f;
}
- lastUnderlinedFontId = glyphInfo->fontId;
+ lastlinedFontId = glyphInfo->fontId;
}
/// Draws the specified color to the pixel buffer
/// 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<uint32_t*>(glyphData.bitmapBuffer.GetBuffer());
// 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);
+ }
}
}
}
}
}
+Devel::PixelBuffer DrawGlyphsBackground(const ViewModel* model, Devel::PixelBuffer& buffer, const unsigned int bufferWidth, const unsigned int bufferHeight, bool ignoreHorizontalAlignment, int horizontalOffset, int verticalOffset)
+{
+ // Retrieve lines, glyphs, positions and colors from the view model.
+ const Length modelNumberOfLines = model->GetNumberOfLines();
+ const LineRun* const modelLinesBuffer = model->GetLines();
+ const Length numberOfGlyphs = model->GetNumberOfGlyphs();
+ const GlyphInfo* const glyphsBuffer = model->GetGlyphs();
+ const Vector2* const positionBuffer = model->GetLayout();
+ const Vector4* const backgroundColorsBuffer = model->GetBackgroundColors();
+ const ColorIndex* const backgroundColorIndicesBuffer = model->GetBackgroundColorIndices();
+
+ // Create and initialize the pixel buffer.
+ GlyphData glyphData;
+ glyphData.verticalOffset = verticalOffset;
+ glyphData.width = bufferWidth;
+ glyphData.height = bufferHeight;
+ glyphData.bitmapBuffer = buffer;
+ glyphData.horizontalOffset = 0;
+
+ ColorIndex prevBackgroundColorIndex = 0;
+ ColorIndex backgroundColorIndex = 0;
+
+ // Traverses the lines of the text.
+ for(LineIndex lineIndex = 0u; lineIndex < modelNumberOfLines; ++lineIndex)
+ {
+ const LineRun& line = *(modelLinesBuffer + lineIndex);
+
+ // Sets the horizontal offset of the line.
+ glyphData.horizontalOffset = ignoreHorizontalAlignment ? 0 : static_cast<int>(line.alignmentOffset);
+ glyphData.horizontalOffset += horizontalOffset;
+
+ // Increases the vertical offset with the line's ascender.
+ glyphData.verticalOffset += static_cast<int>(line.ascender);
+
+ // Include line spacing after first line
+ if(lineIndex > 0u)
+ {
+ glyphData.verticalOffset += static_cast<int>(line.lineSpacing);
+ }
+
+ float left = bufferWidth;
+ float right = 0.0f;
+ float baseline = 0.0f;
+
+ // Traverses the glyphs of the line.
+ const GlyphIndex endGlyphIndex = std::min(numberOfGlyphs, line.glyphRun.glyphIndex + line.glyphRun.numberOfGlyphs);
+ for(GlyphIndex glyphIndex = line.glyphRun.glyphIndex; glyphIndex < endGlyphIndex; ++glyphIndex)
+ {
+ // Retrieve the glyph's info.
+ const GlyphInfo* const glyphInfo = glyphsBuffer + glyphIndex;
+
+ if((glyphInfo->width < Math::MACHINE_EPSILON_1000) ||
+ (glyphInfo->height < Math::MACHINE_EPSILON_1000))
+ {
+ // Nothing to do if default background color, the glyph's width or height is zero.
+ continue;
+ }
+
+ backgroundColorIndex = (nullptr == backgroundColorsBuffer) ? 0u : *(backgroundColorIndicesBuffer + glyphIndex);
+
+ if((backgroundColorIndex != prevBackgroundColorIndex) &&
+ (prevBackgroundColorIndex != 0u))
+ {
+ const Vector4& backgroundColor = *(backgroundColorsBuffer + prevBackgroundColorIndex - 1u);
+ DrawBackgroundColor(backgroundColor, bufferWidth, bufferHeight, glyphData, baseline, line, left, right);
+ }
+
+ if(backgroundColorIndex == 0u)
+ {
+ prevBackgroundColorIndex = backgroundColorIndex;
+ //if background color is the default do nothing
+ continue;
+ }
+
+ // Retrieves the glyph's position.
+ const Vector2* const position = positionBuffer + glyphIndex;
+
+ if(baseline < position->y + glyphInfo->yBearing)
+ {
+ baseline = position->y + glyphInfo->yBearing;
+ }
+
+ // Calculate the positions of leftmost and rightmost glyphs in the current line
+ if((position->x < left) || (backgroundColorIndex != prevBackgroundColorIndex))
+ {
+ left = position->x - glyphInfo->xBearing;
+ }
+
+ if(position->x + glyphInfo->width > right)
+ {
+ right = position->x - glyphInfo->xBearing + glyphInfo->advance;
+ }
+
+ prevBackgroundColorIndex = backgroundColorIndex;
+ }
+
+ //draw last background at line end if not default
+ if(backgroundColorIndex != 0u)
+ {
+ const Vector4& backgroundColor = *(backgroundColorsBuffer + backgroundColorIndex - 1u);
+ DrawBackgroundColor(backgroundColor, bufferWidth, bufferHeight, glyphData, baseline, line, left, right);
+ }
+
+ // Increases the vertical offset with the line's descender.
+ glyphData.verticalOffset += static_cast<int>(-line.descender);
+ }
+
+ return glyphData.bitmapBuffer;
+}
+
+/// Draws the specified strikethrough color to the buffer
+void DrawStrikethrough(
+ const Vector4& strikethroughColor,
+ const unsigned int bufferWidth,
+ const unsigned int bufferHeight,
+ GlyphData& glyphData,
+ const float baseline,
+ const LineRun& line,
+ const float maxStrikethroughThickness,
+ const float lineExtentLeft,
+ const float lineExtentRight,
+ float strikethroughStartingYPosition)
+{
+ uint32_t* bitmapBuffer = reinterpret_cast<uint32_t*>(glyphData.bitmapBuffer.GetBuffer());
+
+ for(unsigned int y = strikethroughStartingYPosition; y < strikethroughStartingYPosition + maxStrikethroughThickness; y++)
+ {
+ if(y > bufferHeight - 1)
+ {
+ // Do not write out of bounds.
+ break;
+ }
+
+ 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, strikethroughColor, x, y);
+ }
+ }
+}
+
} // namespace
TypesetterPtr Typesetter::New(const ModelInterface* const model)
return mModel;
}
+Devel::PixelBuffer Typesetter::CreateImageBuffer(const unsigned int bufferWidth, const unsigned int bufferHeight, Pixel::Format pixelFormat)
+{
+ Devel::PixelBuffer imageBuffer = Devel::PixelBuffer::New(bufferWidth, bufferHeight, pixelFormat);
+
+ if(Pixel::RGBA8888 == pixelFormat)
+ {
+ const unsigned int bufferSizeInt = bufferWidth * bufferHeight;
+ const unsigned int bufferSizeChar = 4u * bufferSizeInt;
+ memset(imageBuffer.GetBuffer(), 0u, bufferSizeChar);
+ }
+ else
+ {
+ memset(imageBuffer.GetBuffer(), 0, bufferWidth * bufferHeight);
+ }
+
+ return imageBuffer;
+}
+
PixelData Typesetter::Render(const Vector2& size, Toolkit::DevelText::TextDirection::Type textDirection, RenderBehaviour behaviour, bool ignoreHorizontalAlignment, Pixel::Format pixelFormat)
{
// @todo. This initial implementation for a TextLabel has only one visible page.
const unsigned int bufferSizeInt = bufferWidth * bufferHeight;
const unsigned int bufferSizeChar = 4u * bufferSizeInt;
- Length numberOfGlyphs = mModel->GetNumberOfGlyphs();
+ //Elided text in ellipsis at START could start on index greater than 0
+ auto startIndexOfGlyphs = mModel->GetStartIndexOfElidedGlyphs();
+ auto endIndexOfGlyphs = mModel->GetEndIndexOfElidedGlyphs();
Devel::PixelBuffer imageBuffer;
if(RENDER_MASK == behaviour)
{
// Generate the image buffer as an alpha mask for color glyphs.
- imageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_MASK, ignoreHorizontalAlignment, pixelFormat, penX, penY, 0u, numberOfGlyphs - 1);
+ imageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_MASK, ignoreHorizontalAlignment, pixelFormat, penX, penY, startIndexOfGlyphs, endIndexOfGlyphs);
}
- else if(RENDER_NO_TEXT == behaviour)
+ else if(RENDER_NO_TEXT == behaviour || RENDER_OVERLAY_STYLE == behaviour)
{
// Generate an empty image buffer so that it can been combined with the image buffers for styles
imageBuffer = Devel::PixelBuffer::New(bufferWidth, bufferHeight, Pixel::RGBA8888);
else
{
// Generate the image buffer for the text with no style.
- imageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_NONE, ignoreHorizontalAlignment, pixelFormat, penX, penY, 0u, numberOfGlyphs - 1);
+ imageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_NONE, ignoreHorizontalAlignment, pixelFormat, penX, penY, startIndexOfGlyphs, endIndexOfGlyphs);
}
if((RENDER_NO_STYLES != behaviour) && (RENDER_MASK != behaviour))
{
// Generate the outline if enabled
const uint16_t outlineWidth = mModel->GetOutlineWidth();
- if(outlineWidth != 0u)
+ if(outlineWidth != 0u && RENDER_OVERLAY_STYLE != behaviour)
{
// Create the image buffer for outline
- Devel::PixelBuffer outlineImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_OUTLINE, ignoreHorizontalAlignment, pixelFormat, penX, penY, 0u, numberOfGlyphs - 1);
+ Devel::PixelBuffer outlineImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_OUTLINE, ignoreHorizontalAlignment, pixelFormat, penX, penY, startIndexOfGlyphs, endIndexOfGlyphs);
// Combine the two buffers
imageBuffer = CombineImageBuffer(imageBuffer, outlineImageBuffer, bufferWidth, bufferHeight);
// Generate the shadow if enabled
const Vector2& shadowOffset = mModel->GetShadowOffset();
- if(fabsf(shadowOffset.x) > Math::MACHINE_EPSILON_1 || fabsf(shadowOffset.y) > Math::MACHINE_EPSILON_1)
+ if(RENDER_OVERLAY_STYLE != behaviour && (fabsf(shadowOffset.x) > Math::MACHINE_EPSILON_1 || fabsf(shadowOffset.y) > Math::MACHINE_EPSILON_1))
{
// Create the image buffer for shadow
- Devel::PixelBuffer shadowImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_SHADOW, ignoreHorizontalAlignment, pixelFormat, penX, penY, 0u, numberOfGlyphs - 1);
+ Devel::PixelBuffer shadowImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_SHADOW, ignoreHorizontalAlignment, pixelFormat, penX, penY, startIndexOfGlyphs, endIndexOfGlyphs);
// Check whether it will be a soft shadow
const float& blurRadius = mModel->GetShadowBlurRadius();
// Generate the underline if enabled
const bool underlineEnabled = mModel->IsUnderlineEnabled();
- if(underlineEnabled)
+ if(underlineEnabled && RENDER_OVERLAY_STYLE == behaviour)
{
// Create the image buffer for underline
- Devel::PixelBuffer underlineImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_UNDERLINE, ignoreHorizontalAlignment, pixelFormat, penX, penY, 0u, numberOfGlyphs - 1);
+ Devel::PixelBuffer underlineImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_UNDERLINE, ignoreHorizontalAlignment, pixelFormat, penX, penY, startIndexOfGlyphs, endIndexOfGlyphs);
// Combine the two buffers
imageBuffer = CombineImageBuffer(imageBuffer, underlineImageBuffer, bufferWidth, bufferHeight);
}
// Generate the background if enabled
- const bool backgroundEnabled = mModel->IsBackgroundEnabled();
- if(backgroundEnabled)
+ const bool backgroundEnabled = mModel->IsBackgroundEnabled();
+ const bool backgroundMarkupSet = mModel->IsMarkupBackgroundColorSet();
+ if((backgroundEnabled || backgroundMarkupSet) && RENDER_OVERLAY_STYLE != behaviour)
{
- Devel::PixelBuffer backgroundImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_BACKGROUND, ignoreHorizontalAlignment, pixelFormat, penX, penY, 0u, numberOfGlyphs - 1);
+ Devel::PixelBuffer backgroundImageBuffer;
+
+ if(backgroundEnabled)
+ {
+ backgroundImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_BACKGROUND, ignoreHorizontalAlignment, pixelFormat, penX, penY, startIndexOfGlyphs, endIndexOfGlyphs);
+ }
+ else
+ {
+ backgroundImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, pixelFormat);
+ }
+
+ if(backgroundMarkupSet)
+ {
+ DrawGlyphsBackground(mModel, backgroundImageBuffer, bufferWidth, bufferHeight, ignoreHorizontalAlignment, penX, penY);
+ }
// Combine the two buffers
imageBuffer = CombineImageBuffer(imageBuffer, backgroundImageBuffer, bufferWidth, bufferHeight);
}
+
+ // Generate the strikethrough if enabled
+ const bool strikethroughEnabled = mModel->IsStrikethroughEnabled();
+ if(strikethroughEnabled && RENDER_OVERLAY_STYLE == behaviour)
+ {
+ // Create the image buffer for strikethrough
+ Devel::PixelBuffer strikethroughImageBuffer = CreateImageBuffer(bufferWidth, bufferHeight, Typesetter::STYLE_STRIKETHROUGH, ignoreHorizontalAlignment, pixelFormat, penX, penY, 0u, endIndexOfGlyphs);
+
+ // Combine the two buffers
+ imageBuffer = CombineImageBuffer(imageBuffer, strikethroughImageBuffer, bufferWidth, bufferHeight);
+ }
+
+ // Markup-Processor
+
+ imageBuffer = ApplyMarkupProcessorOnPixelBuffer(imageBuffer, bufferWidth, bufferHeight, ignoreHorizontalAlignment, pixelFormat, penX, penY);
}
// Create the final PixelData for the combined image buffer
// Retrieve lines, glyphs, positions and colors from the view model.
const Length modelNumberOfLines = mModel->GetNumberOfLines();
const LineRun* const modelLinesBuffer = mModel->GetLines();
- const Length numberOfGlyphs = mModel->GetNumberOfGlyphs();
const GlyphInfo* const glyphsBuffer = mModel->GetGlyphs();
const Vector2* const positionBuffer = mModel->GetLayout();
const Vector4* const colorsBuffer = mModel->GetColors();
const ColorIndex* const colorIndexBuffer = mModel->GetColorIndices();
+ const GlyphInfo* hyphens = mModel->GetHyphens();
+ const Length* hyphenIndices = mModel->GetHyphenIndices();
+ const Length hyphensCount = mModel->GetHyphensCount();
+
+ // Elided text info. Indices according to elided text and Ellipsis position.
+ const auto startIndexOfGlyphs = mModel->GetStartIndexOfElidedGlyphs();
+ const auto endIndexOfGlyphs = mModel->GetEndIndexOfElidedGlyphs();
+ const auto firstMiddleIndexOfElidedGlyphs = mModel->GetFirstMiddleIndexOfElidedGlyphs();
+ const auto secondMiddleIndexOfElidedGlyphs = mModel->GetSecondMiddleIndexOfElidedGlyphs();
+ const auto ellipsisPosition = mModel->GetEllipsisPosition();
// 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;
glyphData.verticalOffset = verticalOffset;
glyphData.width = bufferWidth;
glyphData.height = bufferHeight;
- glyphData.bitmapBuffer = Devel::PixelBuffer::New(bufferWidth, bufferHeight, pixelFormat);
+ glyphData.bitmapBuffer = CreateImageBuffer(bufferWidth, bufferHeight, pixelFormat);
glyphData.horizontalOffset = 0;
- if(Pixel::RGBA8888 == pixelFormat)
- {
- const unsigned int bufferSizeInt = bufferWidth * bufferHeight;
- const unsigned int bufferSizeChar = 4u * bufferSizeInt;
- memset(glyphData.bitmapBuffer.GetBuffer(), 0u, bufferSizeChar);
- }
- else
- {
- memset(glyphData.bitmapBuffer.GetBuffer(), 0, bufferWidth * bufferHeight);
- }
-
// Get a handle of the font client. Used to retrieve the bitmaps of the glyphs.
- TextAbstraction::FontClient fontClient = TextAbstraction::FontClient::Get();
+ TextAbstraction::FontClient fontClient = TextAbstraction::FontClient::Get();
+ Length hyphenIndex = 0;
+
+ const Character* textBuffer = mModel->GetTextBuffer();
+ float calculatedAdvance = 0.f;
+ const Vector<CharacterIndex>& glyphToCharacterMap = mModel->GetGlyphsToCharacters();
+ const CharacterIndex* glyphToCharacterMapBuffer = glyphToCharacterMap.Begin();
// Traverses the lines of the text.
for(LineIndex lineIndex = 0u; lineIndex < modelNumberOfLines; ++lineIndex)
}
}
- const bool underlineEnabled = mModel->IsUnderlineEnabled();
- const Vector4& underlineColor = mModel->GetUnderlineColor();
- const float underlineHeight = mModel->GetUnderlineHeight();
+ 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();
underlineRuns.Resize(numberOfUnderlineRuns);
mModel->GetUnderlineRuns(underlineRuns.Begin(), 0u, numberOfUnderlineRuns);
+ // Get the strikethrough runs.
+ const Length numberOfStrikethroughRuns = mModel->GetNumberOfStrikethroughRuns();
+ Vector<StrikethroughGlyphRun> strikethroughRuns;
+ strikethroughRuns.Resize(numberOfStrikethroughRuns);
+ mModel->GetStrikethroughRuns(strikethroughRuns.Begin(), 0u, numberOfStrikethroughRuns);
+
bool thereAreUnderlinedGlyphs = false;
+ bool strikethroughGlyphsExist = false;
- float currentUnderlinePosition = 0.0f;
- float currentUnderlineThickness = underlineHeight;
- float maxUnderlineThickness = currentUnderlineThickness;
+ float currentUnderlinePosition = 0.0f;
+ float currentUnderlineThickness = underlineHeight;
+ float maxUnderlineThickness = currentUnderlineThickness;
+ float currentStrikethroughThickness = strikethroughHeight;
+ float maxStrikethroughThickness = currentStrikethroughThickness;
+ float strikethroughStartingYPosition = 0.0f;
FontId lastUnderlinedFontId = 0;
float lineExtentLeft = bufferWidth;
float lineExtentRight = 0.0f;
float baseline = 0.0f;
+ bool addHyphen = false;
// Traverses the glyphs of the line.
- const GlyphIndex endGlyphIndex = std::min(numberOfGlyphs, line.glyphRun.glyphIndex + line.glyphRun.numberOfGlyphs);
- for(GlyphIndex glyphIndex = line.glyphRun.glyphIndex; glyphIndex < endGlyphIndex; ++glyphIndex)
+ const GlyphIndex startGlyphIndex = std::max(line.glyphRun.glyphIndex, startIndexOfGlyphs);
+ GlyphIndex endGlyphIndex = (line.isSplitToTwoHalves ? line.glyphRunSecondHalf.glyphIndex + line.glyphRunSecondHalf.numberOfGlyphs : line.glyphRun.glyphIndex + line.glyphRun.numberOfGlyphs) - 1u;
+ endGlyphIndex = std::min(endGlyphIndex, endIndexOfGlyphs);
+
+ for(GlyphIndex glyphIndex = startGlyphIndex; glyphIndex <= endGlyphIndex; ++glyphIndex)
{
if(glyphIndex < fromGlyphIndex || glyphIndex > toGlyphIndex)
{
continue;
}
+ //To handle START case of ellipsis, the first glyph has been shifted
+ //glyphIndex represent indices in whole glyphs but elidedGlyphIndex represents indices in elided Glyphs
+ GlyphIndex elidedGlyphIndex = glyphIndex - startIndexOfGlyphs;
+
+ //To handle MIDDLE case of ellipsis, the first glyph in the second half of line has been shifted and skip the removed glyph from middle.
+ if(ellipsisPosition == DevelText::EllipsisPosition::MIDDLE)
+ {
+ if(glyphIndex > firstMiddleIndexOfElidedGlyphs &&
+ glyphIndex < secondMiddleIndexOfElidedGlyphs)
+ {
+ // Ignore any glyph that removed for MIDDLE ellipsis
+ continue;
+ }
+ if(glyphIndex >= secondMiddleIndexOfElidedGlyphs)
+ {
+ elidedGlyphIndex -= (secondMiddleIndexOfElidedGlyphs - firstMiddleIndexOfElidedGlyphs - 1u);
+ }
+ }
+
// Retrieve the glyph's info.
- const GlyphInfo* const glyphInfo = glyphsBuffer + glyphIndex;
+ const GlyphInfo* glyphInfo;
+
+ if(addHyphen && hyphens)
+ {
+ glyphInfo = hyphens + hyphenIndex;
+ hyphenIndex++;
+ }
+ else
+ {
+ glyphInfo = glyphsBuffer + elidedGlyphIndex;
+ }
if((glyphInfo->width < Math::MACHINE_EPSILON_1000) ||
(glyphInfo->height < Math::MACHINE_EPSILON_1000))
const bool underlineGlyph = underlineEnabled || IsGlyphUnderlined(glyphIndex, underlineRuns);
thereAreUnderlinedGlyphs = thereAreUnderlinedGlyphs || underlineGlyph;
+ currentStrikethroughColor = strikethroughColor;
+ const bool strikethroughGlyph = strikethroughEnabled || doGlyphHaveStrikethrough(glyphIndex, strikethroughRuns, currentStrikethroughColor);
+ strikethroughGlyphsExist = strikethroughGlyphsExist || strikethroughGlyph;
+
// Are we still using the same fontId as previous
- if(underlineGlyph && (glyphInfo->fontId != lastUnderlinedFontId))
+ if((strikethroughGlyph || underlineGlyph) && (glyphInfo->fontId != lastUnderlinedFontId))
{
// We need to fetch fresh font underline metrics
- FetchFontUnderlineMetrics(fontClient, glyphInfo, currentUnderlinePosition, underlineHeight, currentUnderlineThickness, maxUnderlineThickness, lastUnderlinedFontId);
+ FetchFontDecorationlinesMetrics(fontClient, glyphInfo, currentUnderlinePosition, underlineHeight, currentUnderlineThickness, maxUnderlineThickness, lastUnderlinedFontId, strikethroughHeight, currentStrikethroughThickness, maxStrikethroughThickness);
} // underline
// Retrieves the glyph's position.
- const Vector2* const position = positionBuffer + glyphIndex;
- if(baseline < position->y + glyphInfo->yBearing)
+ Vector2 position = *(positionBuffer + elidedGlyphIndex);
+
+ if(addHyphen)
{
- baseline = position->y + glyphInfo->yBearing;
+ GlyphInfo tempInfo = *(glyphsBuffer + elidedGlyphIndex);
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + (*(glyphToCharacterMapBuffer + elidedGlyphIndex))), characterSpacing, tempInfo.advance);
+ position.x = position.x + calculatedAdvance - tempInfo.xBearing + glyphInfo->xBearing;
+ position.y = -glyphInfo->yBearing;
+ }
+
+ if(baseline < position.y + glyphInfo->yBearing)
+ {
+ baseline = position.y + glyphInfo->yBearing;
}
// Calculate the positions of leftmost and rightmost glyphs in the current line
- if(position->x < lineExtentLeft)
+ if(position.x < lineExtentLeft)
{
- lineExtentLeft = position->x;
+ lineExtentLeft = position.x;
}
- if(position->x + glyphInfo->width > lineExtentRight)
+ if(position.x + glyphInfo->width > lineExtentRight)
{
- lineExtentRight = position->x + glyphInfo->width;
+ lineExtentRight = position.x + glyphInfo->width;
}
// Retrieves the glyph's color.
outlineWidth = 0.0f;
}
- if(style != Typesetter::STYLE_UNDERLINE)
+ if(style != Typesetter::STYLE_UNDERLINE && style != Typesetter::STYLE_STRIKETHROUGH)
{
fontClient.CreateBitmap(glyphInfo->fontId,
glyphInfo->index,
// Set the buffer of the glyph's bitmap into the final bitmap's buffer
TypesetGlyph(glyphData,
- position,
+ &position,
&color,
style,
pixelFormat);
delete[] glyphData.glyphBitmap.buffer;
glyphData.glyphBitmap.buffer = NULL;
}
+
+ if(hyphenIndices)
+ {
+ while((hyphenIndex < hyphensCount) && (glyphIndex > hyphenIndices[hyphenIndex]))
+ {
+ hyphenIndex++;
+ }
+
+ addHyphen = ((hyphenIndex < hyphensCount) && ((glyphIndex + 1) == hyphenIndices[hyphenIndex]));
+ if(addHyphen)
+ {
+ glyphIndex--;
+ }
+ }
}
// 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
DrawBackgroundColor(mModel->GetBackgroundColor(), bufferWidth, bufferHeight, glyphData, baseline, line, lineExtentLeft, lineExtentRight);
}
+ // Draw the strikethrough from the leftmost glyph to the rightmost glyph
+ if(strikethroughGlyphsExist && style == Typesetter::STYLE_STRIKETHROUGH)
+ {
+ //TODO : The currently implemented strikethrough creates a strikethrough on the line level. We need to create different strikethroughs the case of glyphs with different sizes.
+ strikethroughStartingYPosition = (glyphData.verticalOffset + baseline + currentUnderlinePosition) - ((line.ascender) * HALF); // Since Free Type font doesn't contain the strikethrough-position property, strikethrough position will be calculated by moving the underline position upwards by half the value of the line height.
+ DrawStrikethrough(strikethroughColor, bufferWidth, bufferHeight, glyphData, baseline, line, maxStrikethroughThickness, lineExtentLeft, lineExtentRight, strikethroughStartingYPosition);
+ }
+
// Increases the vertical offset with the line's descender.
glyphData.verticalOffset += static_cast<int>(-line.descender);
}
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<GlyphRun> 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<GlyphRun>::ConstIterator itGlyphRun = underlineRuns.Begin();
+ Vector<GlyphRun>::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<StrikethroughGlyphRun> 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<StrikethroughGlyphRun>::ConstIterator itGlyphRun = strikethroughRuns.Begin();
+ Vector<StrikethroughGlyphRun>::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)
+ {
+ topPixelBuffer = ApplyUnderlineMarkupImageBuffer(topPixelBuffer, bufferWidth, bufferHeight, ignoreHorizontalAlignment, pixelFormat, horizontalOffset, verticalOffset);
+
+ topPixelBuffer = ApplyStrikethroughMarkupImageBuffer(topPixelBuffer, bufferWidth, bufferHeight, ignoreHorizontalAlignment, pixelFormat, horizontalOffset, verticalOffset);
+ }
+
+ return topPixelBuffer;
+}
+
Typesetter::Typesetter(const ModelInterface* const model)
: mModel(new ViewModel(model))
{
projects / platform / core / uifw / dali-toolkit.git / blobdiff