/*
- * Copyright (c) 2021 Samsung Electronics Co., Ltd.
+ * Copyright (c) 2023 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.
// EXTERNAL INCLUDES
#include <dali/devel-api/text-abstraction/font-client.h>
#include <dali/public-api/math/vector2.h>
+#include <memory.h>
-namespace Dali
+// INTERNAL INCLUDES
+#include <dali-toolkit/internal/text/glyph-metrics-helper.h>
+#include <dali-toolkit/internal/text/rendering/styles/character-spacing-helper-functions.h>
+
+namespace Dali::Toolkit::Text
{
-namespace Toolkit
+
+namespace
{
-namespace Text
+
+/// If ellipsis is enabled, calculate the number of laid out glyphs.
+/// Otherwise use the given number of glyphs.
+void CalculateNumberOfLaidOutGlyphes(
+ const bool hasEllipsis,
+ bool& textElided,
+ Length& numberOfLaidOutGlyphs,
+ Length& numberOfActualLaidOutGlyphs,
+ const Length& numberOfGlyphs,
+ const DevelText::EllipsisPosition::Type& ellipsisPosition,
+ const LineRun*& ellipsisLine,
+ const Length& numberOfLines,
+ const LineRun* const& lines)
+{
+ if(hasEllipsis)
+ {
+ textElided = true;
+ numberOfLaidOutGlyphs = numberOfGlyphs;
+
+ switch(ellipsisPosition)
+ {
+ case DevelText::EllipsisPosition::START:
+ {
+ numberOfActualLaidOutGlyphs = numberOfGlyphs - ellipsisLine->glyphRun.glyphIndex;
+ break;
+ }
+ case DevelText::EllipsisPosition::MIDDLE:
+ {
+ numberOfActualLaidOutGlyphs = 0u;
+ for(Length lineIndex = 0u ; lineIndex < numberOfLines ; lineIndex++)
+ {
+ numberOfActualLaidOutGlyphs += lines[lineIndex].glyphRun.numberOfGlyphs + lines[lineIndex].glyphRunSecondHalf.numberOfGlyphs;
+ }
+ break;
+ }
+ case DevelText::EllipsisPosition::END:
+ {
+ numberOfActualLaidOutGlyphs = ellipsisLine->glyphRun.glyphIndex + ellipsisLine->glyphRun.numberOfGlyphs;
+ break;
+ }
+ }
+ }
+ else
+ {
+ numberOfActualLaidOutGlyphs = numberOfLaidOutGlyphs = numberOfGlyphs;
+ }
+}
+
+void InsertEllipsisGlyph(
+ GlyphInfo*& glyphs,
+ GlyphIndex& indexOfEllipsis,
+ Length& numberOfRemovedGlyphs,
+ Vector2*& glyphPositions,
+ TextAbstraction::FontClient& fontClient,
+ const Vector<CharacterSpacingGlyphRun>& characterSpacingGlyphRuns,
+ const float& modelCharacterSpacing,
+ float& calculatedAdvance,
+ const Character*& textBuffer,
+ const CharacterIndex*& glyphToCharacterMapBuffer,
+ const Length& numberOfGlyphs,
+ const bool isTailMode,
+ const LineRun*& ellipsisLine,
+ const Length& numberOfLaidOutGlyphs)
{
+ // firstPenX, penY and firstPenSet are used to position the ellipsis glyph if needed.
+ float firstPenX = 0.f; // Used if rtl text is elided.
+ float penY = 0.f;
+ bool firstPenSet = false;
+ bool inserted = false;
+
+ float removedGlyphsWidth = 0.f;
+
+ while(!inserted)
+ {
+ const GlyphInfo& glyphToRemove = *(glyphs + indexOfEllipsis);
+
+ if(0u != glyphToRemove.fontId)
+ {
+ // i.e. The font id of the glyph shaped from the '\n' character is zero.
+
+ // Need to reshape the glyph as the font may be different in size.
+ const GlyphInfo& ellipsisGlyph = fontClient.GetEllipsisGlyph(fontClient.GetPointSize(glyphToRemove.fontId));
+
+ if(!firstPenSet)
+ {
+ const Vector2& position = *(glyphPositions + indexOfEllipsis);
+
+ // Calculates the penY of the current line. It will be used to position the ellipsis glyph.
+ penY = position.y + glyphToRemove.yBearing;
+
+ // Calculates the first penX which will be used if rtl text is elided.
+ firstPenX = position.x - glyphToRemove.xBearing;
+ if(firstPenX < -ellipsisGlyph.xBearing)
+ {
+ // Avoids to exceed the bounding box when rtl text is elided.
+ firstPenX = -ellipsisGlyph.xBearing;
+ }
+
+ removedGlyphsWidth = -ellipsisGlyph.xBearing;
+
+ firstPenSet = true;
+ }
+
+ const float characterSpacing = GetGlyphCharacterSpacing(indexOfEllipsis, characterSpacingGlyphRuns, modelCharacterSpacing);
+ calculatedAdvance = GetCalculatedAdvance(*(textBuffer + (*(glyphToCharacterMapBuffer + indexOfEllipsis))), characterSpacing, glyphToRemove.advance);
+ removedGlyphsWidth += std::min(calculatedAdvance, (glyphToRemove.xBearing + glyphToRemove.width));
+
+ // Calculate the width of the ellipsis glyph and check if it fits.
+ const float ellipsisGlyphWidth = ellipsisGlyph.width + ellipsisGlyph.xBearing;
+ if((ellipsisGlyphWidth < removedGlyphsWidth) || (isTailMode ? (indexOfEllipsis == 0u) : (indexOfEllipsis == numberOfGlyphs - 1u)))
+ {
+ GlyphInfo& glyphInfo = *(glyphs + indexOfEllipsis);
+ Vector2& position = *(glyphPositions + indexOfEllipsis);
+ position.x -= (0.f > glyphInfo.xBearing) ? glyphInfo.xBearing : 0.f;
+
+ // Replace the glyph by the ellipsis glyph.
+ glyphInfo = ellipsisGlyph;
+
+ // Change the 'x' and 'y' position of the ellipsis glyph.
+ if(position.x > firstPenX)
+ {
+ if(isTailMode)
+ {
+ // To handle case of the mixed languages (LTR then RTL) with
+ // EllipsisPosition::END and the LayoutDirection::RIGHT_TO_LEFT
+ float nextXPositions = ellipsisLine->width;
+ if(indexOfEllipsis + 1u < numberOfGlyphs)
+ {
+ Vector2& positionOfNextGlyph = *(glyphPositions + indexOfEllipsis + 1u);
+ nextXPositions = positionOfNextGlyph.x;
+ }
+
+ if(position.x > nextXPositions) // RTL language
+ {
+ if((indexOfEllipsis > 0u) && ((position.x - nextXPositions) > removedGlyphsWidth))
+ {
+ // To handle mixed directions
+ // Re-calculates the first penX which will be used if rtl text is elided.
+ firstPenX = position.x - glyphToRemove.xBearing;
+ if(firstPenX < -ellipsisGlyph.xBearing)
+ {
+ // Avoids to exceed the bounding box when rtl text is elided.
+ firstPenX = -ellipsisGlyph.xBearing;
+ }
+ //Reset the width of removed glyphs
+ removedGlyphsWidth = std::min(calculatedAdvance, (glyphToRemove.xBearing + glyphToRemove.width)) - ellipsisGlyph.xBearing;
+
+ --indexOfEllipsis;
+ continue;
+ }
+ else
+ {
+ // To handle the case of RTL language with EllipsisPosition::END
+ position.x = firstPenX + removedGlyphsWidth - ellipsisGlyphWidth;
+ }
+ }
+ }
+ else
+ {
+ // To handle the case of LTR language with EllipsisPosition::START
+ position.x = firstPenX + removedGlyphsWidth - ellipsisGlyphWidth;
+ }
+ }
+ else
+ {
+ if(!isTailMode)
+ {
+ // To handle case of the mixed languages (RTL then LTR) with
+ // EllipsisPosition::START and the LayoutDirection::RIGHT_TO_LEFT
+ float nextXPositions = ellipsisLine->width;
+ if(indexOfEllipsis + 1u < numberOfGlyphs)
+ {
+ Vector2& positionOfNextGlyph = *(glyphPositions + indexOfEllipsis + 1u);
+ nextXPositions = positionOfNextGlyph.x;
+ }
+
+ if(position.x < nextXPositions) // LTR language
+ {
+ position.x = firstPenX + removedGlyphsWidth - ellipsisGlyphWidth;
+
+ if((position.x + ellipsisGlyphWidth + ellipsisGlyph.xBearing) > nextXPositions)
+ {
+ position.x -= (position.x + ellipsisGlyphWidth + ellipsisGlyph.xBearing) - nextXPositions;
+ }
+ }
+ }
+ }
+
+ position.x += ellipsisGlyph.xBearing;
+ position.y = penY - ellipsisGlyph.yBearing;
+
+ inserted = true;
+ }
+ }
+
+ if(!inserted)
+ {
+ if(isTailMode && indexOfEllipsis > 0u)
+ {
+ // Tail Mode: remove glyphs from startIndexOfEllipsis then decrement indexOfEllipsis, until arrive to index zero.
+ --indexOfEllipsis;
+ }
+ else if(!isTailMode && indexOfEllipsis < numberOfLaidOutGlyphs - 1u)
+ {
+ // Not Tail Mode: remove glyphs from startIndexOfEllipsis then increase indexOfEllipsis, until arrive to last index (numberOfGlyphs - 1u).
+ ++indexOfEllipsis;
+ }
+ else
+ {
+ // No space for the ellipsis.
+ inserted = true;
+ }
+ ++numberOfRemovedGlyphs;
+ }
+ }
+}
+
+/// 'Removes' all the glyphs after the ellipsis glyph.
+void RemoveAllGlyphsAfterEllipsisGlyph(
+ const DevelText::EllipsisPosition::Type& ellipsisPosition,
+ Length& numberOfLaidOutGlyphs,
+ const Length& numberOfActualLaidOutGlyphs,
+ const Length& numberOfRemovedGlyphs,
+ const bool isTailMode,
+ const GlyphIndex& indexOfEllipsis,
+ const LineRun*& ellipsisNextLine,
+ const LineRun*& ellipsisLine,
+ GlyphInfo*& glyphs,
+ Vector2*& glyphPositions,
+ const Length& numberOfGlyphs,
+ const GlyphIndex& startIndexOfEllipsis,
+ VisualModelPtr& visualModel)
+{
+ switch(ellipsisPosition)
+ {
+ case DevelText::EllipsisPosition::MIDDLE:
+ {
+ //Reduce size, shift glyphs and start from ellipsis glyph
+ numberOfLaidOutGlyphs = numberOfActualLaidOutGlyphs - numberOfRemovedGlyphs;
+
+ GlyphIndex firstMiddleIndexOfElidedGlyphs = 0u;
+ GlyphIndex secondMiddleIndexOfElidedGlyphs = 0u;
+
+ bool isOnlySecondHalf = false;
+ if(isTailMode)
+ {
+ // Multi-lines case with MIDDLE
+ // In case the Ellipsis in the end of line,
+ // then this index will be the firstMiddleIndex.
+ // The secondMiddleIndex will be the fisrt index in next line.
+ // But in case there is no line after Ellipsis's line then secondMiddleIndex and endIndex equal firstMiddle
+ // Example:
+ // A: are laid out glyphs in line has Ellipsis in the end.
+ // N: are laid out glyphs in lines after removed lines.
+ // R: are removed glyphs.
+ // L: are removed glyphs when removed lines.
+ // AAAAAAAAAAAA...RRR => Here's the firstMiddleIndex (First index after last A)
+ // LLLLLLLLLLLLLLL
+ // LLLLLLLLLLLLLLL
+ // NNNNNNNNNNNNNN => Here's the secondMiddleIndex (First N)
+ // NNNNNNNNNN
+
+ firstMiddleIndexOfElidedGlyphs = indexOfEllipsis;
+ if(ellipsisNextLine != nullptr)
+ {
+ secondMiddleIndexOfElidedGlyphs = ellipsisNextLine->glyphRun.glyphIndex;
+ } else
+ {
+ secondMiddleIndexOfElidedGlyphs = firstMiddleIndexOfElidedGlyphs;
+ visualModel->SetEndIndexOfElidedGlyphs(firstMiddleIndexOfElidedGlyphs);
+ }
+ } else
+ {
+ // Single line case with MIDDLE
+ // In case the Ellipsis in the middle of line,
+ // Then the last index in first half will be firstMiddleIndex.
+ // And the indexOfEllipsis will be secondMiddleIndex, which is the first index in second half.
+ // Example:
+ // A: are laid out glyphs in first half of line.
+ // N: are laid out glyphs in second half of line.
+ // R: are removed glyphs.
+ // L: re removed glyphs when layouting text
+ // AAAAAAALLLLLLLLLLLRRR...NNNNN
+ // firstMiddleIndex (index of last A)
+ // secondMiddleIndex (index before first N)
+
+ firstMiddleIndexOfElidedGlyphs = (ellipsisLine->glyphRun.numberOfGlyphs > 0u) ? (ellipsisLine->glyphRun.glyphIndex + ellipsisLine->glyphRun.numberOfGlyphs - 1u) : (ellipsisLine->glyphRun.glyphIndex);
+ secondMiddleIndexOfElidedGlyphs = indexOfEllipsis;
+ isOnlySecondHalf = ellipsisLine->glyphRun.numberOfGlyphs == 0u && ellipsisLine->glyphRunSecondHalf.numberOfGlyphs > 0u;
+ }
+
+ visualModel->SetFirstMiddleIndexOfElidedGlyphs(firstMiddleIndexOfElidedGlyphs);
+ visualModel->SetSecondMiddleIndexOfElidedGlyphs(secondMiddleIndexOfElidedGlyphs);
+
+ // The number of shifted glyphs and shifting positions will be different according to Single-line or Multi-lines.
+ // isOnlySecondHalf will be true when MIDDLE Ellipsis glyph in single line.
+ if(isOnlySecondHalf)
+ {
+ Length numberOfSecondHalfGlyphs = numberOfLaidOutGlyphs - firstMiddleIndexOfElidedGlyphs;
+
+ //Copy elided glyphs after the ellipsis glyph.
+ memcpy(glyphs + firstMiddleIndexOfElidedGlyphs, glyphs + secondMiddleIndexOfElidedGlyphs, numberOfSecondHalfGlyphs * sizeof(GlyphInfo));
+ memcpy(glyphPositions + firstMiddleIndexOfElidedGlyphs, glyphPositions + secondMiddleIndexOfElidedGlyphs, numberOfSecondHalfGlyphs * sizeof(Vector2));
+ } else
+ {
+ Length numberOfSecondHalfGlyphs = numberOfLaidOutGlyphs - firstMiddleIndexOfElidedGlyphs + 1u;
+
+ // Make sure that out-of-boundary does not occur.
+ if(secondMiddleIndexOfElidedGlyphs + numberOfSecondHalfGlyphs > numberOfGlyphs)
+ {
+ numberOfSecondHalfGlyphs = numberOfGlyphs - secondMiddleIndexOfElidedGlyphs;
+ }
+
+ //Copy elided glyphs after the ellipsis glyph.
+ memcpy(glyphs + firstMiddleIndexOfElidedGlyphs + 1u, glyphs + secondMiddleIndexOfElidedGlyphs, numberOfSecondHalfGlyphs * sizeof(GlyphInfo));
+ memcpy(glyphPositions + firstMiddleIndexOfElidedGlyphs + 1u, glyphPositions + secondMiddleIndexOfElidedGlyphs, numberOfSecondHalfGlyphs * sizeof(Vector2));
+ }
+ break;
+ }
+
+ case DevelText::EllipsisPosition::START:
+ {
+ numberOfLaidOutGlyphs = numberOfActualLaidOutGlyphs - numberOfRemovedGlyphs;
+ //Copy elided glyphs after the ellipsis glyph.
+ memcpy(glyphs, glyphs + startIndexOfEllipsis + numberOfRemovedGlyphs, numberOfLaidOutGlyphs * sizeof(GlyphInfo));
+ memcpy(glyphPositions, glyphPositions + startIndexOfEllipsis + numberOfRemovedGlyphs, numberOfLaidOutGlyphs * sizeof(Vector2));
+ visualModel->SetStartIndexOfElidedGlyphs(indexOfEllipsis);
+ break;
+ }
+
+ case DevelText::EllipsisPosition::END:
+ {
+ numberOfLaidOutGlyphs = numberOfActualLaidOutGlyphs - numberOfRemovedGlyphs;
+ visualModel->SetEndIndexOfElidedGlyphs(indexOfEllipsis);
+ break;
+ }
+ }
+} // unnamed namespace
+
+}
struct View::Impl
{
VisualModelPtr mVisualModel;
+ LogicalModelPtr mLogicalModel;
TextAbstraction::FontClient mFontClient; ///< Handle to the font client.
};
View::View()
-: mImpl(NULL)
+ : mImpl(NULL)
{
mImpl = new View::Impl();
mImpl->mVisualModel = visualModel;
}
+void View::SetLogicalModel(LogicalModelPtr logicalModel)
+{
+ mImpl->mLogicalModel = logicalModel;
+}
+
const Vector2& View::GetControlSize() const
{
if(mImpl->mVisualModel)
GlyphIndex glyphIndex,
Length numberOfGlyphs) const
{
- Length numberOfLaidOutGlyphs = 0u;
+ Length numberOfLaidOutGlyphs = 0u;
+ Length numberOfActualLaidOutGlyphs = 0u;
+ const float modelCharacterSpacing = mImpl->mVisualModel->GetCharacterSpacing();
+ Vector<CharacterIndex>& glyphToCharacterMap = mImpl->mVisualModel->mGlyphsToCharacters;
+ const CharacterIndex* glyphToCharacterMapBuffer = glyphToCharacterMap.Begin();
+ float calculatedAdvance = 0.f;
+ const Character* textBuffer = mImpl->mLogicalModel->mText.Begin();
if(mImpl->mVisualModel)
{
+ // Get the character-spacing runs.
+ const Vector<CharacterSpacingGlyphRun>& characterSpacingGlyphRuns = mImpl->mVisualModel->GetCharacterSpacingGlyphRuns();
+
+ bool textElided = false;
+ DevelText::EllipsisPosition::Type ellipsisPosition = GetEllipsisPosition();
+
+ //Reset indices of ElidedGlyphs
+ mImpl->mVisualModel->SetStartIndexOfElidedGlyphs(0u);
+ mImpl->mVisualModel->SetEndIndexOfElidedGlyphs(numberOfGlyphs - 1u); // Initialization is the last index of Glyphs
+ mImpl->mVisualModel->SetFirstMiddleIndexOfElidedGlyphs(0u);
+ mImpl->mVisualModel->SetSecondMiddleIndexOfElidedGlyphs(0u);
+
// If ellipsis is enabled, the number of glyphs the layout engine has laid out may be less than 'numberOfGlyphs'.
// Check the last laid out line to know if the layout engine elided some text.
const Length numberOfLines = mImpl->mVisualModel->mLines.Count();
if(numberOfLines > 0u)
{
- const LineRun& lastLine = *(mImpl->mVisualModel->mLines.Begin() + (numberOfLines - 1u));
+ const LineRun* const lines = mImpl->mVisualModel->mLines.Begin();
- // If ellipsis is enabled, calculate the number of laid out glyphs.
- // Otherwise use the given number of glyphs.
- if(lastLine.ellipsis)
+ //Get line of ellipsis
+ const LineRun* ellipsisLine = nullptr;
+ const LineRun* ellipsisNextLine = nullptr;
+ bool hasEllipsis = false;
+ for(Length lineIndex = 0; lineIndex < numberOfLines; lineIndex++)
{
- numberOfLaidOutGlyphs = lastLine.glyphRun.glyphIndex + lastLine.glyphRun.numberOfGlyphs;
- }
- else
- {
- numberOfLaidOutGlyphs = numberOfGlyphs;
+ const LineRun* line = (lines + lineIndex);
+ if(line->ellipsis)
+ {
+ ellipsisLine = line;
+ hasEllipsis = true;
+ if(lineIndex < numberOfLines - 1u)
+ {
+ ellipsisNextLine = (lines + lineIndex + 1u);
+ }
+ break;
+ }
}
- if(0u < numberOfLaidOutGlyphs)
+ CalculateNumberOfLaidOutGlyphes(hasEllipsis, textElided, numberOfLaidOutGlyphs, numberOfActualLaidOutGlyphs, numberOfGlyphs, ellipsisPosition, ellipsisLine, numberOfLines, lines);
+
+ if(0u < numberOfActualLaidOutGlyphs)
{
// Retrieve from the visual model the glyphs and positions.
mImpl->mVisualModel->GetGlyphs(glyphs,
// Get the lines for the given range of glyphs.
// The lines contain the alignment offset which needs to be added to the glyph's position.
- LineIndex firstLine = 0u;
- Length numberOfLines = 0u;
+ LineIndex firstLineIndex = 0u;
+ Length numberOfLines = 0u;
mImpl->mVisualModel->GetNumberOfLines(glyphIndex,
numberOfLaidOutGlyphs,
- firstLine,
+ firstLineIndex,
numberOfLines);
Vector<LineRun> lines;
numberOfLaidOutGlyphs);
// Get the first line for the given glyph range.
- LineIndex lineIndex = firstLine;
+ LineIndex lineIndex = firstLineIndex;
LineRun* line = lineBuffer + lineIndex;
// Index of the last glyph of the line.
- GlyphIndex lastGlyphIndexOfLine = line->glyphRun.glyphIndex + line->glyphRun.numberOfGlyphs - 1u;
+ GlyphIndex lastGlyphIndexOfLine = (line->isSplitToTwoHalves ? line->glyphRunSecondHalf.glyphIndex + line->glyphRunSecondHalf.numberOfGlyphs : line->glyphRun.glyphIndex + line->glyphRun.numberOfGlyphs) - 1u;
// Add the alignment offset to the glyph's position.
if(lastGlyphIndexOfLine == index)
{
- penY += -line->descender;
+ penY += -line->descender + line->lineSpacing;
// Get the next line.
++lineIndex;
line = lineBuffer + lineIndex;
minLineOffset = std::min(minLineOffset, line->alignmentOffset);
- lastGlyphIndexOfLine = line->glyphRun.glyphIndex + line->glyphRun.numberOfGlyphs - 1u;
+ lastGlyphIndexOfLine = (line->isSplitToTwoHalves ? line->glyphRunSecondHalf.glyphIndex + line->glyphRunSecondHalf.numberOfGlyphs : line->glyphRun.glyphIndex + line->glyphRun.numberOfGlyphs) - 1u;
penY += line->ascender;
}
}
}
+ // Set index where to set Ellipsis according to the selected position of Ellipsis.
+ // Start with this index to replace its glyph by Ellipsis, if the width is not enough, then remove more glyphs.
+ GlyphIndex startIndexOfEllipsis = 0u;
+ if(hasEllipsis)
+ {
+ switch(ellipsisPosition)
+ {
+ case DevelText::EllipsisPosition::START:
+ {
+ // It's the fisrt glyph in line.
+ startIndexOfEllipsis = ellipsisLine->glyphRun.glyphIndex;
+ break;
+ }
+ case DevelText::EllipsisPosition::MIDDLE:
+ {
+ // It's the second middle of the line in case the line split to two halves.
+ // Otherwise it's It's the last glyph in line (line before all removed lines).
+ startIndexOfEllipsis = ellipsisLine->isSplitToTwoHalves ? (ellipsisLine->glyphRunSecondHalf.glyphIndex) : (ellipsisLine->glyphRun.glyphIndex + ellipsisLine->glyphRun.numberOfGlyphs - 1u);
+ break;
+ }
+ case DevelText::EllipsisPosition::END:
+ {
+ // It's the last glyph in line.
+ startIndexOfEllipsis = ellipsisLine->glyphRun.glyphIndex + ellipsisLine->glyphRun.numberOfGlyphs - 1u;
+ break;
+ }
+ }
+ }
+
if(1u == numberOfLaidOutGlyphs)
{
// not a point try to do ellipsis with only one laid out character.
+
return numberOfLaidOutGlyphs;
}
- if(lastLine.ellipsis)
+ if(textElided)
{
+ const LineRun& elidedLine = *ellipsisLine;
+
if((1u == numberOfLines) &&
- (lastLine.ascender - lastLine.descender > mImpl->mVisualModel->mControlSize.height))
+ (GetLineHeight(elidedLine, true) > mImpl->mVisualModel->mControlSize.height))
{
+ // Replace the first glyph with ellipsis glyph
+ auto indexOfFirstGlyph = (ellipsisPosition == DevelText::EllipsisPosition::START) ? startIndexOfEllipsis : 0u;
+
+ // Regardless where the location of ellipsis,in-case the hight of line is greater than control's height
+ // then replace the first glyph with ellipsis glyph.
+
// Get the first glyph which is going to be replaced and the ellipsis glyph.
- GlyphInfo& glyphInfo = *glyphs;
+ GlyphInfo& glyphInfo = *(glyphs + indexOfFirstGlyph);
const GlyphInfo& ellipsisGlyph = mImpl->mFontClient.GetEllipsisGlyph(mImpl->mFontClient.GetPointSize(glyphInfo.fontId));
// Change the 'x' and 'y' position of the ellipsis glyph.
- Vector2& position = *glyphPositions;
+ Vector2& position = *(glyphPositions + indexOfFirstGlyph);
position.x = ellipsisGlyph.xBearing;
position.y = mImpl->mVisualModel->mControlSize.height - ellipsisGlyph.yBearing;
// Replace the glyph by the ellipsis glyph.
glyphInfo = ellipsisGlyph;
- return 1u;
- }
+ mImpl->mVisualModel->SetStartIndexOfElidedGlyphs(indexOfFirstGlyph);
+ mImpl->mVisualModel->SetEndIndexOfElidedGlyphs(indexOfFirstGlyph);
+ mImpl->mVisualModel->SetFirstMiddleIndexOfElidedGlyphs(indexOfFirstGlyph);
+ mImpl->mVisualModel->SetSecondMiddleIndexOfElidedGlyphs(indexOfFirstGlyph);
- // firstPenX, penY and firstPenSet are used to position the ellipsis glyph if needed.
- float firstPenX = 0.f; // Used if rtl text is elided.
- float penY = 0.f;
- bool firstPenSet = false;
+ numberOfLaidOutGlyphs = 1u;
+
+ return numberOfLaidOutGlyphs;
+ }
// Add the ellipsis glyph.
- bool inserted = false;
- float removedGlypsWidth = 0.f;
Length numberOfRemovedGlyphs = 0u;
- GlyphIndex index = numberOfLaidOutGlyphs - 1u;
-
- // The ellipsis glyph has to fit in the place where the last glyph(s) is(are) removed.
- while(!inserted)
- {
- const GlyphInfo& glyphToRemove = *(glyphs + index);
+ GlyphIndex indexOfEllipsis = startIndexOfEllipsis;
- if(0u != glyphToRemove.fontId)
- {
- // i.e. The font id of the glyph shaped from the '\n' character is zero.
-
- // Need to reshape the glyph as the font may be different in size.
- const GlyphInfo& ellipsisGlyph = mImpl->mFontClient.GetEllipsisGlyph(mImpl->mFontClient.GetPointSize(glyphToRemove.fontId));
-
- if(!firstPenSet)
- {
- const Vector2& position = *(glyphPositions + index);
-
- // Calculates the penY of the current line. It will be used to position the ellipsis glyph.
- penY = position.y + glyphToRemove.yBearing;
-
- // Calculates the first penX which will be used if rtl text is elided.
- firstPenX = position.x - glyphToRemove.xBearing;
- if(firstPenX < -ellipsisGlyph.xBearing)
- {
- // Avoids to exceed the bounding box when rtl text is elided.
- firstPenX = -ellipsisGlyph.xBearing;
- }
-
- removedGlypsWidth = -ellipsisGlyph.xBearing;
-
- firstPenSet = true;
- }
-
- removedGlypsWidth += std::min(glyphToRemove.advance, (glyphToRemove.xBearing + glyphToRemove.width));
-
- // Calculate the width of the ellipsis glyph and check if it fits.
- const float ellipsisGlyphWidth = ellipsisGlyph.width + ellipsisGlyph.xBearing;
- if(ellipsisGlyphWidth < removedGlypsWidth)
- {
- GlyphInfo& glyphInfo = *(glyphs + index);
- Vector2& position = *(glyphPositions + index);
- position.x -= (0.f > glyphInfo.xBearing) ? glyphInfo.xBearing : 0.f;
-
- // Replace the glyph by the ellipsis glyph.
- glyphInfo = ellipsisGlyph;
-
- // Change the 'x' and 'y' position of the ellipsis glyph.
+ // Tail Mode: start by the end of line.
+ const bool isTailMode = ellipsisPosition == DevelText::EllipsisPosition::END ||
+ (ellipsisPosition == DevelText::EllipsisPosition::MIDDLE && numberOfLines != 1u);
- if(position.x > firstPenX)
- {
- position.x = firstPenX + removedGlypsWidth - ellipsisGlyphWidth;
- }
-
- position.x += ellipsisGlyph.xBearing;
- position.y = penY - ellipsisGlyph.yBearing;
-
- inserted = true;
- }
- }
-
- if(!inserted)
- {
- if(index > 0u)
- {
- --index;
- }
- else
- {
- // No space for the ellipsis.
- inserted = true;
- }
- ++numberOfRemovedGlyphs;
- }
- }
+ // The ellipsis glyph has to fit in the place where the last glyph(s) is(are) removed.
+ InsertEllipsisGlyph(
+ glyphs, indexOfEllipsis, numberOfRemovedGlyphs, glyphPositions, mImpl->mFontClient, characterSpacingGlyphRuns, modelCharacterSpacing,
+ calculatedAdvance, textBuffer, glyphToCharacterMapBuffer, numberOfGlyphs, isTailMode, ellipsisLine, numberOfLaidOutGlyphs);
- // 'Removes' all the glyphs after the ellipsis glyph.
- numberOfLaidOutGlyphs -= numberOfRemovedGlyphs;
+ RemoveAllGlyphsAfterEllipsisGlyph(
+ ellipsisPosition, numberOfLaidOutGlyphs, numberOfActualLaidOutGlyphs, numberOfRemovedGlyphs, isTailMode, indexOfEllipsis, ellipsisNextLine,
+ ellipsisLine, glyphs, glyphPositions, numberOfGlyphs, startIndexOfEllipsis, mImpl->mVisualModel);
}
}
}
return numberOfLaidOutGlyphs;
}
-const Vector4* const View::GetColors() const
+const Vector4* View::GetColors() const
{
if(mImpl->mVisualModel)
{
return NULL;
}
-const ColorIndex* const View::GetColorIndices() const
+const ColorIndex* View::GetColorIndices() const
{
if(mImpl->mVisualModel)
{
return NULL;
}
-const Vector4* const View::GetBackgroundColors() const
+const Vector4* View::GetBackgroundColors() const
{
if(mImpl->mVisualModel)
{
return nullptr;
}
-const ColorIndex* const View::GetBackgroundColorIndices() const
+const ColorIndex* View::GetBackgroundColorIndices() const
{
if(mImpl->mVisualModel)
{
return nullptr;
}
-bool const View::IsMarkupBackgroundColorSet() const
+bool View::IsMarkupBackgroundColorSet() const
{
if(mImpl->mVisualModel)
{
return false;
}
+bool View::IsMarkupUnderlineSet() const
+{
+ return (GetNumberOfUnderlineRuns() > 0u);
+}
+
const GlyphInfo* View::GetHyphens() const
{
if(mImpl->mVisualModel)
return 0.0f;
}
+Text::Underline::Type View::GetUnderlineType() const
+{
+ Text::Underline::Type type = Text::Underline::Type::SOLID;
+ if(mImpl->mVisualModel)
+ {
+ type = mImpl->mVisualModel->GetUnderlineType();
+ }
+ return type;
+}
+
+float View::GetDashedUnderlineWidth() const
+{
+ float width = 0.0f;
+ if(mImpl->mVisualModel)
+ {
+ width = mImpl->mVisualModel->GetDashedUnderlineWidth();
+ }
+ return width;
+}
+
+float View::GetDashedUnderlineGap() const
+{
+ float gap = 0.0f;
+ if(mImpl->mVisualModel)
+ {
+ gap = mImpl->mVisualModel->GetDashedUnderlineGap();
+ }
+ return gap;
+}
+
Length View::GetNumberOfUnderlineRuns() const
{
if(mImpl->mVisualModel)
return 0u;
}
-void View::GetUnderlineRuns(GlyphRun* underlineRuns,
- UnderlineRunIndex index,
- Length numberOfRuns) const
+void View::GetUnderlineRuns(UnderlinedGlyphRun* underlineRuns,
+ UnderlineRunIndex index,
+ Length numberOfRuns) const
{
if(mImpl->mVisualModel)
{
}
}
+const Vector2& View::GetOutlineOffset() const
+{
+// TODO : We should support outline offset to editable text.
+/*
+ if(mImpl->mVisualModel)
+ {
+ return mImpl->mVisualModel->GetOutlineOffset();
+ }
+*/
+ return Vector2::ZERO;
+}
+
const Vector4& View::GetOutlineColor() const
{
if(mImpl->mVisualModel)
return 0u;
}
-} // namespace Text
+DevelText::EllipsisPosition::Type View::GetEllipsisPosition() const
+{
+ DevelText::EllipsisPosition::Type ellipsisPosition = DevelText::EllipsisPosition::END;
+ if(mImpl->mVisualModel)
+ {
+ const VisualModel& model = *mImpl->mVisualModel;
+ ellipsisPosition = model.GetEllipsisPosition();
+ }
+
+ return ellipsisPosition;
+}
+
+bool View::IsTextElideEnabled() const
+{
+ bool isTextElideEnabled = false;
+
+ if(mImpl->mVisualModel)
+ {
+ const VisualModel& model = *mImpl->mVisualModel;
+ isTextElideEnabled = model.IsTextElideEnabled();
+ }
-} // namespace Toolkit
+ return isTextElideEnabled;
+}
+
+GlyphIndex View::GetStartIndexOfElidedGlyphs() const
+{
+ GlyphIndex startIndexOfElidedGlyphs = 0u;
+
+ if(mImpl->mVisualModel)
+ {
+ const VisualModel& model = *mImpl->mVisualModel;
+ startIndexOfElidedGlyphs = model.GetStartIndexOfElidedGlyphs();
+ }
+
+ return startIndexOfElidedGlyphs;
+}
+
+GlyphIndex View::GetEndIndexOfElidedGlyphs() const
+{
+ GlyphIndex endIndexOfElidedGlyphs = 0u;
+
+ if(mImpl->mVisualModel)
+ {
+ const VisualModel& model = *mImpl->mVisualModel;
+ endIndexOfElidedGlyphs = model.GetEndIndexOfElidedGlyphs();
+ }
+
+ return endIndexOfElidedGlyphs;
+}
+
+GlyphIndex View::GetFirstMiddleIndexOfElidedGlyphs() const
+{
+ GlyphIndex firstMiddleIndexOfElidedGlyphs = 0u;
+
+ if(mImpl->mVisualModel)
+ {
+ const VisualModel& model = *mImpl->mVisualModel;
+ firstMiddleIndexOfElidedGlyphs = model.GetFirstMiddleIndexOfElidedGlyphs();
+ }
+
+ return firstMiddleIndexOfElidedGlyphs;
+}
+
+GlyphIndex View::GetSecondMiddleIndexOfElidedGlyphs() const
+{
+ GlyphIndex secondMiddleIndexOfElidedGlyphs = 0u;
+
+ if(mImpl->mVisualModel)
+ {
+ const VisualModel& model = *mImpl->mVisualModel;
+ secondMiddleIndexOfElidedGlyphs = model.GetSecondMiddleIndexOfElidedGlyphs();
+ }
+
+ return secondMiddleIndexOfElidedGlyphs;
+}
+
+const Vector4& View::GetStrikethroughColor() const
+{
+ return (mImpl->mVisualModel) ? mImpl->mVisualModel->GetStrikethroughColor() : Vector4::ZERO;
+}
+
+bool View::IsStrikethroughEnabled() const
+{
+ return (mImpl->mVisualModel) ? mImpl->mVisualModel->IsStrikethroughEnabled() : false;
+}
+
+bool View::IsMarkupStrikethroughSet() const
+{
+ return (GetNumberOfStrikethroughRuns() > 0u);
+}
+
+float View::GetStrikethroughHeight() const
+{
+ return (mImpl->mVisualModel) ? mImpl->mVisualModel->GetStrikethroughHeight() : 0.0f;
+}
+
+Length View::GetNumberOfStrikethroughRuns() const
+{
+ if(mImpl->mVisualModel)
+ {
+ return mImpl->mVisualModel->GetNumberOfStrikethroughRuns();
+ }
+
+ return 0u;
+}
+
+void View::GetStrikethroughRuns(StrikethroughGlyphRun* strikethroughRuns,
+ StrikethroughRunIndex index,
+ Length numberOfRuns) const
+{
+ if(mImpl->mVisualModel)
+ {
+ mImpl->mVisualModel->GetStrikethroughRuns(strikethroughRuns,
+ index,
+ numberOfRuns);
+ }
+}
+
+Length View::GetNumberOfBoundedParagraphRuns() const
+{
+ if(mImpl->mLogicalModel)
+ {
+ return mImpl->mLogicalModel->GetNumberOfBoundedParagraphRuns();
+ }
+
+ return 0u;
+}
+
+const Vector<BoundedParagraphRun>& View::GetBoundedParagraphRuns() const
+{
+ return mImpl->mLogicalModel->GetBoundedParagraphRuns();
+}
+
+float View::GetCharacterSpacing() const
+{
+ return mImpl->mVisualModel->GetCharacterSpacing();
+}
+
+const Character* View::GetTextBuffer() const
+{
+ return mImpl->mLogicalModel->mText.Begin();
+}
+
+const Vector<CharacterIndex>& View::GetGlyphsToCharacters() const
+{
+ return mImpl->mVisualModel->GetGlyphsToCharacters();
+}
-} // namespace Dali
+} // namespace Dali::Toolkit::Text
projects / platform / core / uifw / dali-toolkit.git / blobdiff