792 lines
25 KiB
C++
792 lines
25 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE library.
|
|
Copyright (c) 2017 - ROLI Ltd.
|
|
|
|
JUCE is an open source library subject to commercial or open-source
|
|
licensing.
|
|
|
|
By using JUCE, you agree to the terms of both the JUCE 5 End-User License
|
|
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
|
|
27th April 2017).
|
|
|
|
End User License Agreement: www.juce.com/juce-5-licence
|
|
Privacy Policy: www.juce.com/juce-5-privacy-policy
|
|
|
|
Or: You may also use this code under the terms of the GPL v3 (see
|
|
www.gnu.org/licenses).
|
|
|
|
JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
|
|
EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
|
|
DISCLAIMED.
|
|
|
|
==============================================================================
|
|
*/
|
|
|
|
namespace juce
|
|
{
|
|
|
|
PositionedGlyph::PositionedGlyph() noexcept
|
|
: character (0), glyph (0), x (0), y (0), w (0), whitespace (false)
|
|
{
|
|
}
|
|
|
|
PositionedGlyph::PositionedGlyph (const Font& font_, juce_wchar character_, int glyphNumber,
|
|
float anchorX, float baselineY, float width, bool whitespace_)
|
|
: font (font_), character (character_), glyph (glyphNumber),
|
|
x (anchorX), y (baselineY), w (width), whitespace (whitespace_)
|
|
{
|
|
}
|
|
|
|
PositionedGlyph::PositionedGlyph (PositionedGlyph&& other) noexcept
|
|
: font (std::move (other.font)),
|
|
character (other.character), glyph (other.glyph),
|
|
x (other.x), y (other.y), w (other.w), whitespace (other.whitespace)
|
|
{
|
|
}
|
|
|
|
PositionedGlyph& PositionedGlyph::operator= (PositionedGlyph&& other) noexcept
|
|
{
|
|
font = std::move (other.font);
|
|
character = other.character;
|
|
glyph = other.glyph;
|
|
x = other.x;
|
|
y = other.y;
|
|
w = other.w;
|
|
whitespace = other.whitespace;
|
|
|
|
return *this;
|
|
}
|
|
|
|
PositionedGlyph::~PositionedGlyph() {}
|
|
|
|
static inline void drawGlyphWithFont (Graphics& g, int glyph, const Font& font, AffineTransform t)
|
|
{
|
|
auto& context = g.getInternalContext();
|
|
context.setFont (font);
|
|
context.drawGlyph (glyph, t);
|
|
}
|
|
|
|
void PositionedGlyph::draw (Graphics& g) const
|
|
{
|
|
if (! isWhitespace())
|
|
drawGlyphWithFont (g, glyph, font, AffineTransform::translation (x, y));
|
|
}
|
|
|
|
void PositionedGlyph::draw (Graphics& g, AffineTransform transform) const
|
|
{
|
|
if (! isWhitespace())
|
|
drawGlyphWithFont (g, glyph, font, AffineTransform::translation (x, y).followedBy (transform));
|
|
}
|
|
|
|
void PositionedGlyph::createPath (Path& path) const
|
|
{
|
|
if (! isWhitespace())
|
|
{
|
|
if (auto* t = font.getTypeface())
|
|
{
|
|
Path p;
|
|
t->getOutlineForGlyph (glyph, p);
|
|
|
|
path.addPath (p, AffineTransform::scale (font.getHeight() * font.getHorizontalScale(), font.getHeight())
|
|
.translated (x, y));
|
|
}
|
|
}
|
|
}
|
|
|
|
bool PositionedGlyph::hitTest (float px, float py) const
|
|
{
|
|
if (getBounds().contains (px, py) && ! isWhitespace())
|
|
{
|
|
if (auto* t = font.getTypeface())
|
|
{
|
|
Path p;
|
|
t->getOutlineForGlyph (glyph, p);
|
|
|
|
AffineTransform::translation (-x, -y)
|
|
.scaled (1.0f / (font.getHeight() * font.getHorizontalScale()), 1.0f / font.getHeight())
|
|
.transformPoint (px, py);
|
|
|
|
return p.contains (px, py);
|
|
}
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
void PositionedGlyph::moveBy (float deltaX, float deltaY)
|
|
{
|
|
x += deltaX;
|
|
y += deltaY;
|
|
}
|
|
|
|
|
|
//==============================================================================
|
|
GlyphArrangement::GlyphArrangement()
|
|
{
|
|
glyphs.ensureStorageAllocated (128);
|
|
}
|
|
|
|
GlyphArrangement::GlyphArrangement (GlyphArrangement&& other)
|
|
: glyphs (std::move (other.glyphs))
|
|
{
|
|
}
|
|
|
|
GlyphArrangement& GlyphArrangement::operator= (GlyphArrangement&& other)
|
|
{
|
|
glyphs = std::move (other.glyphs);
|
|
|
|
return *this;
|
|
}
|
|
|
|
GlyphArrangement::~GlyphArrangement() {}
|
|
|
|
//==============================================================================
|
|
void GlyphArrangement::clear()
|
|
{
|
|
glyphs.clear();
|
|
}
|
|
|
|
PositionedGlyph& GlyphArrangement::getGlyph (int index) noexcept
|
|
{
|
|
return glyphs.getReference (index);
|
|
}
|
|
|
|
//==============================================================================
|
|
void GlyphArrangement::addGlyphArrangement (const GlyphArrangement& other)
|
|
{
|
|
glyphs.addArray (other.glyphs);
|
|
}
|
|
|
|
void GlyphArrangement::addGlyph (const PositionedGlyph& glyph)
|
|
{
|
|
glyphs.add (glyph);
|
|
}
|
|
|
|
void GlyphArrangement::removeRangeOfGlyphs (int startIndex, int num)
|
|
{
|
|
glyphs.removeRange (startIndex, num < 0 ? glyphs.size() : num);
|
|
}
|
|
|
|
//==============================================================================
|
|
void GlyphArrangement::addLineOfText (const Font& font, const String& text, float xOffset, float yOffset)
|
|
{
|
|
addCurtailedLineOfText (font, text, xOffset, yOffset, 1.0e10f, false);
|
|
}
|
|
|
|
void GlyphArrangement::addCurtailedLineOfText (const Font& font, const String& text,
|
|
float xOffset, float yOffset,
|
|
float maxWidthPixels, bool useEllipsis)
|
|
{
|
|
if (text.isNotEmpty())
|
|
{
|
|
Array<int> newGlyphs;
|
|
Array<float> xOffsets;
|
|
font.getGlyphPositions (text, newGlyphs, xOffsets);
|
|
auto textLen = newGlyphs.size();
|
|
glyphs.ensureStorageAllocated (glyphs.size() + textLen);
|
|
|
|
auto t = text.getCharPointer();
|
|
|
|
for (int i = 0; i < textLen; ++i)
|
|
{
|
|
auto nextX = xOffsets.getUnchecked (i + 1);
|
|
|
|
if (nextX > maxWidthPixels + 1.0f)
|
|
{
|
|
// curtail the string if it's too wide..
|
|
if (useEllipsis && textLen > 3 && glyphs.size() >= 3)
|
|
insertEllipsis (font, xOffset + maxWidthPixels, 0, glyphs.size());
|
|
|
|
break;
|
|
}
|
|
|
|
auto thisX = xOffsets.getUnchecked (i);
|
|
bool isWhitespace = t.isWhitespace();
|
|
|
|
glyphs.add (PositionedGlyph (font, t.getAndAdvance(),
|
|
newGlyphs.getUnchecked(i),
|
|
xOffset + thisX, yOffset,
|
|
nextX - thisX, isWhitespace));
|
|
}
|
|
}
|
|
}
|
|
|
|
int GlyphArrangement::insertEllipsis (const Font& font, float maxXPos, int startIndex, int endIndex)
|
|
{
|
|
int numDeleted = 0;
|
|
|
|
if (! glyphs.isEmpty())
|
|
{
|
|
Array<int> dotGlyphs;
|
|
Array<float> dotXs;
|
|
font.getGlyphPositions ("..", dotGlyphs, dotXs);
|
|
|
|
auto dx = dotXs[1];
|
|
float xOffset = 0.0f, yOffset = 0.0f;
|
|
|
|
while (endIndex > startIndex)
|
|
{
|
|
auto& pg = glyphs.getReference (--endIndex);
|
|
xOffset = pg.x;
|
|
yOffset = pg.y;
|
|
|
|
glyphs.remove (endIndex);
|
|
++numDeleted;
|
|
|
|
if (xOffset + dx * 3 <= maxXPos)
|
|
break;
|
|
}
|
|
|
|
for (int i = 3; --i >= 0;)
|
|
{
|
|
glyphs.insert (endIndex++, PositionedGlyph (font, '.', dotGlyphs.getFirst(),
|
|
xOffset, yOffset, dx, false));
|
|
--numDeleted;
|
|
xOffset += dx;
|
|
|
|
if (xOffset > maxXPos)
|
|
break;
|
|
}
|
|
}
|
|
|
|
return numDeleted;
|
|
}
|
|
|
|
void GlyphArrangement::addJustifiedText (const Font& font, const String& text,
|
|
float x, float y, float maxLineWidth,
|
|
Justification horizontalLayout)
|
|
{
|
|
auto lineStartIndex = glyphs.size();
|
|
addLineOfText (font, text, x, y);
|
|
|
|
auto originalY = y;
|
|
|
|
while (lineStartIndex < glyphs.size())
|
|
{
|
|
int i = lineStartIndex;
|
|
|
|
if (glyphs.getReference(i).getCharacter() != '\n'
|
|
&& glyphs.getReference(i).getCharacter() != '\r')
|
|
++i;
|
|
|
|
auto lineMaxX = glyphs.getReference (lineStartIndex).getLeft() + maxLineWidth;
|
|
int lastWordBreakIndex = -1;
|
|
|
|
while (i < glyphs.size())
|
|
{
|
|
auto& pg = glyphs.getReference (i);
|
|
auto c = pg.getCharacter();
|
|
|
|
if (c == '\r' || c == '\n')
|
|
{
|
|
++i;
|
|
|
|
if (c == '\r' && i < glyphs.size()
|
|
&& glyphs.getReference(i).getCharacter() == '\n')
|
|
++i;
|
|
|
|
break;
|
|
}
|
|
|
|
if (pg.isWhitespace())
|
|
{
|
|
lastWordBreakIndex = i + 1;
|
|
}
|
|
else if (pg.getRight() - 0.0001f >= lineMaxX)
|
|
{
|
|
if (lastWordBreakIndex >= 0)
|
|
i = lastWordBreakIndex;
|
|
|
|
break;
|
|
}
|
|
|
|
++i;
|
|
}
|
|
|
|
auto currentLineStartX = glyphs.getReference (lineStartIndex).getLeft();
|
|
auto currentLineEndX = currentLineStartX;
|
|
|
|
for (int j = i; --j >= lineStartIndex;)
|
|
{
|
|
if (! glyphs.getReference (j).isWhitespace())
|
|
{
|
|
currentLineEndX = glyphs.getReference (j).getRight();
|
|
break;
|
|
}
|
|
}
|
|
|
|
float deltaX = 0.0f;
|
|
|
|
if (horizontalLayout.testFlags (Justification::horizontallyJustified))
|
|
spreadOutLine (lineStartIndex, i - lineStartIndex, maxLineWidth);
|
|
else if (horizontalLayout.testFlags (Justification::horizontallyCentred))
|
|
deltaX = (maxLineWidth - (currentLineEndX - currentLineStartX)) * 0.5f;
|
|
else if (horizontalLayout.testFlags (Justification::right))
|
|
deltaX = maxLineWidth - (currentLineEndX - currentLineStartX);
|
|
|
|
moveRangeOfGlyphs (lineStartIndex, i - lineStartIndex,
|
|
x + deltaX - currentLineStartX, y - originalY);
|
|
|
|
lineStartIndex = i;
|
|
|
|
y += font.getHeight();
|
|
}
|
|
}
|
|
|
|
void GlyphArrangement::addFittedText (const Font& f, const String& text,
|
|
float x, float y, float width, float height,
|
|
Justification layout, int maximumLines,
|
|
float minimumHorizontalScale)
|
|
{
|
|
if (minimumHorizontalScale == 0.0f)
|
|
minimumHorizontalScale = Font::getDefaultMinimumHorizontalScaleFactor();
|
|
|
|
// doesn't make much sense if this is outside a sensible range of 0.5 to 1.0
|
|
jassert (minimumHorizontalScale > 0 && minimumHorizontalScale <= 1.0f);
|
|
|
|
if (text.containsAnyOf ("\r\n"))
|
|
{
|
|
addLinesWithLineBreaks (text, f, x, y, width, height, layout);
|
|
}
|
|
else
|
|
{
|
|
auto startIndex = glyphs.size();
|
|
auto trimmed = text.trim();
|
|
addLineOfText (f, trimmed, x, y);
|
|
auto numGlyphs = glyphs.size() - startIndex;
|
|
|
|
if (numGlyphs > 0)
|
|
{
|
|
auto lineWidth = glyphs.getReference (glyphs.size() - 1).getRight()
|
|
- glyphs.getReference (startIndex).getLeft();
|
|
|
|
if (lineWidth > 0)
|
|
{
|
|
if (lineWidth * minimumHorizontalScale < width)
|
|
{
|
|
if (lineWidth > width)
|
|
stretchRangeOfGlyphs (startIndex, numGlyphs, width / lineWidth);
|
|
|
|
justifyGlyphs (startIndex, numGlyphs, x, y, width, height, layout);
|
|
}
|
|
else if (maximumLines <= 1)
|
|
{
|
|
fitLineIntoSpace (startIndex, numGlyphs, x, y, width, height,
|
|
f, layout, minimumHorizontalScale);
|
|
}
|
|
else
|
|
{
|
|
splitLines (trimmed, f, startIndex, x, y, width, height,
|
|
maximumLines, lineWidth, layout, minimumHorizontalScale);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//==============================================================================
|
|
void GlyphArrangement::moveRangeOfGlyphs (int startIndex, int num, const float dx, const float dy)
|
|
{
|
|
jassert (startIndex >= 0);
|
|
|
|
if (dx != 0.0f || dy != 0.0f)
|
|
{
|
|
if (num < 0 || startIndex + num > glyphs.size())
|
|
num = glyphs.size() - startIndex;
|
|
|
|
while (--num >= 0)
|
|
glyphs.getReference (startIndex++).moveBy (dx, dy);
|
|
}
|
|
}
|
|
|
|
void GlyphArrangement::addLinesWithLineBreaks (const String& text, const Font& f,
|
|
float x, float y, float width, float height, Justification layout)
|
|
{
|
|
GlyphArrangement ga;
|
|
ga.addJustifiedText (f, text, x, y, width, layout);
|
|
|
|
auto bb = ga.getBoundingBox (0, -1, false);
|
|
auto dy = y - bb.getY();
|
|
|
|
if (layout.testFlags (Justification::verticallyCentred)) dy += (height - bb.getHeight()) * 0.5f;
|
|
else if (layout.testFlags (Justification::bottom)) dy += (height - bb.getHeight());
|
|
|
|
ga.moveRangeOfGlyphs (0, -1, 0.0f, dy);
|
|
|
|
glyphs.addArray (ga.glyphs);
|
|
}
|
|
|
|
int GlyphArrangement::fitLineIntoSpace (int start, int numGlyphs, float x, float y, float w, float h, const Font& font,
|
|
Justification justification, float minimumHorizontalScale)
|
|
{
|
|
int numDeleted = 0;
|
|
auto lineStartX = glyphs.getReference (start).getLeft();
|
|
auto lineWidth = glyphs.getReference (start + numGlyphs - 1).getRight() - lineStartX;
|
|
|
|
if (lineWidth > w)
|
|
{
|
|
if (minimumHorizontalScale < 1.0f)
|
|
{
|
|
stretchRangeOfGlyphs (start, numGlyphs, jmax (minimumHorizontalScale, w / lineWidth));
|
|
lineWidth = glyphs.getReference (start + numGlyphs - 1).getRight() - lineStartX - 0.5f;
|
|
}
|
|
|
|
if (lineWidth > w)
|
|
{
|
|
numDeleted = insertEllipsis (font, lineStartX + w, start, start + numGlyphs);
|
|
numGlyphs -= numDeleted;
|
|
}
|
|
}
|
|
|
|
justifyGlyphs (start, numGlyphs, x, y, w, h, justification);
|
|
return numDeleted;
|
|
}
|
|
|
|
void GlyphArrangement::stretchRangeOfGlyphs (int startIndex, int num, float horizontalScaleFactor)
|
|
{
|
|
jassert (startIndex >= 0);
|
|
|
|
if (num < 0 || startIndex + num > glyphs.size())
|
|
num = glyphs.size() - startIndex;
|
|
|
|
if (num > 0)
|
|
{
|
|
auto xAnchor = glyphs.getReference (startIndex).getLeft();
|
|
|
|
while (--num >= 0)
|
|
{
|
|
auto& pg = glyphs.getReference (startIndex++);
|
|
|
|
pg.x = xAnchor + (pg.x - xAnchor) * horizontalScaleFactor;
|
|
pg.font.setHorizontalScale (pg.font.getHorizontalScale() * horizontalScaleFactor);
|
|
pg.w *= horizontalScaleFactor;
|
|
}
|
|
}
|
|
}
|
|
|
|
Rectangle<float> GlyphArrangement::getBoundingBox (int startIndex, int num, bool includeWhitespace) const
|
|
{
|
|
jassert (startIndex >= 0);
|
|
|
|
if (num < 0 || startIndex + num > glyphs.size())
|
|
num = glyphs.size() - startIndex;
|
|
|
|
Rectangle<float> result;
|
|
|
|
while (--num >= 0)
|
|
{
|
|
auto& pg = glyphs.getReference (startIndex++);
|
|
|
|
if (includeWhitespace || ! pg.isWhitespace())
|
|
result = result.getUnion (pg.getBounds());
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
void GlyphArrangement::justifyGlyphs (int startIndex, int num,
|
|
float x, float y, float width, float height,
|
|
Justification justification)
|
|
{
|
|
jassert (num >= 0 && startIndex >= 0);
|
|
|
|
if (glyphs.size() > 0 && num > 0)
|
|
{
|
|
auto bb = getBoundingBox (startIndex, num, ! justification.testFlags (Justification::horizontallyJustified
|
|
| Justification::horizontallyCentred));
|
|
float deltaX = x, deltaY = y;
|
|
|
|
if (justification.testFlags (Justification::horizontallyJustified)) deltaX -= bb.getX();
|
|
else if (justification.testFlags (Justification::horizontallyCentred)) deltaX += (width - bb.getWidth()) * 0.5f - bb.getX();
|
|
else if (justification.testFlags (Justification::right)) deltaX += width - bb.getRight();
|
|
else deltaX -= bb.getX();
|
|
|
|
if (justification.testFlags (Justification::top)) deltaY -= bb.getY();
|
|
else if (justification.testFlags (Justification::bottom)) deltaY += height - bb.getBottom();
|
|
else deltaY += (height - bb.getHeight()) * 0.5f - bb.getY();
|
|
|
|
moveRangeOfGlyphs (startIndex, num, deltaX, deltaY);
|
|
|
|
if (justification.testFlags (Justification::horizontallyJustified))
|
|
{
|
|
int lineStart = 0;
|
|
auto baseY = glyphs.getReference (startIndex).getBaselineY();
|
|
|
|
int i;
|
|
for (i = 0; i < num; ++i)
|
|
{
|
|
auto glyphY = glyphs.getReference (startIndex + i).getBaselineY();
|
|
|
|
if (glyphY != baseY)
|
|
{
|
|
spreadOutLine (startIndex + lineStart, i - lineStart, width);
|
|
|
|
lineStart = i;
|
|
baseY = glyphY;
|
|
}
|
|
}
|
|
|
|
if (i > lineStart)
|
|
spreadOutLine (startIndex + lineStart, i - lineStart, width);
|
|
}
|
|
}
|
|
}
|
|
|
|
void GlyphArrangement::spreadOutLine (int start, int num, float targetWidth)
|
|
{
|
|
if (start + num < glyphs.size()
|
|
&& glyphs.getReference (start + num - 1).getCharacter() != '\r'
|
|
&& glyphs.getReference (start + num - 1).getCharacter() != '\n')
|
|
{
|
|
int numSpaces = 0;
|
|
int spacesAtEnd = 0;
|
|
|
|
for (int i = 0; i < num; ++i)
|
|
{
|
|
if (glyphs.getReference (start + i).isWhitespace())
|
|
{
|
|
++spacesAtEnd;
|
|
++numSpaces;
|
|
}
|
|
else
|
|
{
|
|
spacesAtEnd = 0;
|
|
}
|
|
}
|
|
|
|
numSpaces -= spacesAtEnd;
|
|
|
|
if (numSpaces > 0)
|
|
{
|
|
auto startX = glyphs.getReference (start).getLeft();
|
|
auto endX = glyphs.getReference (start + num - 1 - spacesAtEnd).getRight();
|
|
|
|
auto extraPaddingBetweenWords = (targetWidth - (endX - startX)) / (float) numSpaces;
|
|
float deltaX = 0.0f;
|
|
|
|
for (int i = 0; i < num; ++i)
|
|
{
|
|
glyphs.getReference (start + i).moveBy (deltaX, 0.0f);
|
|
|
|
if (glyphs.getReference (start + i).isWhitespace())
|
|
deltaX += extraPaddingBetweenWords;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static inline bool isBreakableGlyph (const PositionedGlyph& g) noexcept
|
|
{
|
|
return g.isWhitespace() || g.getCharacter() == '-';
|
|
}
|
|
|
|
void GlyphArrangement::splitLines (const String& text, Font font, int startIndex,
|
|
float x, float y, float width, float height, int maximumLines,
|
|
float lineWidth, Justification layout, float minimumHorizontalScale)
|
|
{
|
|
auto length = text.length();
|
|
auto originalStartIndex = startIndex;
|
|
int numLines = 1;
|
|
|
|
if (length <= 12 && ! text.containsAnyOf (" -\t\r\n"))
|
|
maximumLines = 1;
|
|
|
|
maximumLines = jmin (maximumLines, length);
|
|
|
|
while (numLines < maximumLines)
|
|
{
|
|
++numLines;
|
|
auto newFontHeight = height / (float) numLines;
|
|
|
|
if (newFontHeight < font.getHeight())
|
|
{
|
|
font.setHeight (jmax (8.0f, newFontHeight));
|
|
|
|
removeRangeOfGlyphs (startIndex, -1);
|
|
addLineOfText (font, text, x, y);
|
|
|
|
lineWidth = glyphs.getReference (glyphs.size() - 1).getRight()
|
|
- glyphs.getReference (startIndex).getLeft();
|
|
}
|
|
|
|
// Try to estimate the point at which there are enough lines to fit the text,
|
|
// allowing for unevenness in the lengths due to differently sized words.
|
|
const float lineLengthUnevennessAllowance = 80.0f;
|
|
|
|
if (numLines > (lineWidth + lineLengthUnevennessAllowance) / width || newFontHeight < 8.0f)
|
|
break;
|
|
}
|
|
|
|
if (numLines < 1)
|
|
numLines = 1;
|
|
|
|
int lineIndex = 0;
|
|
auto lineY = y;
|
|
auto widthPerLine = jmin (width / minimumHorizontalScale,
|
|
lineWidth / numLines);
|
|
|
|
while (lineY < y + height)
|
|
{
|
|
auto endIndex = startIndex;
|
|
auto lineStartX = glyphs.getReference (startIndex).getLeft();
|
|
auto lineBottomY = lineY + font.getHeight();
|
|
|
|
if (lineIndex++ >= numLines - 1
|
|
|| lineBottomY >= y + height)
|
|
{
|
|
widthPerLine = width;
|
|
endIndex = glyphs.size();
|
|
}
|
|
else
|
|
{
|
|
while (endIndex < glyphs.size())
|
|
{
|
|
if (glyphs.getReference (endIndex).getRight() - lineStartX > widthPerLine)
|
|
{
|
|
// got to a point where the line's too long, so skip forward to find a
|
|
// good place to break it..
|
|
auto searchStartIndex = endIndex;
|
|
|
|
while (endIndex < glyphs.size())
|
|
{
|
|
auto& g = glyphs.getReference (endIndex);
|
|
|
|
if ((g.getRight() - lineStartX) * minimumHorizontalScale < width)
|
|
{
|
|
if (isBreakableGlyph (g))
|
|
{
|
|
++endIndex;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// can't find a suitable break, so try looking backwards..
|
|
endIndex = searchStartIndex;
|
|
|
|
for (int back = 1; back < jmin (7, endIndex - startIndex - 1); ++back)
|
|
{
|
|
if (isBreakableGlyph (glyphs.getReference (endIndex - back)))
|
|
{
|
|
endIndex -= back - 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
++endIndex;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
++endIndex;
|
|
}
|
|
|
|
auto wsStart = endIndex;
|
|
auto wsEnd = endIndex;
|
|
|
|
while (wsStart > 0 && glyphs.getReference (wsStart - 1).isWhitespace())
|
|
--wsStart;
|
|
|
|
while (wsEnd < glyphs.size() && glyphs.getReference (wsEnd).isWhitespace())
|
|
++wsEnd;
|
|
|
|
removeRangeOfGlyphs (wsStart, wsEnd - wsStart);
|
|
endIndex = jmax (wsStart, startIndex + 1);
|
|
}
|
|
|
|
endIndex -= fitLineIntoSpace (startIndex, endIndex - startIndex,
|
|
x, lineY, width, font.getHeight(), font,
|
|
layout.getOnlyHorizontalFlags() | Justification::verticallyCentred,
|
|
minimumHorizontalScale);
|
|
|
|
startIndex = endIndex;
|
|
lineY = lineBottomY;
|
|
|
|
if (startIndex >= glyphs.size())
|
|
break;
|
|
}
|
|
|
|
justifyGlyphs (originalStartIndex, glyphs.size() - originalStartIndex,
|
|
x, y, width, height, layout.getFlags() & ~Justification::horizontallyJustified);
|
|
}
|
|
|
|
//==============================================================================
|
|
void GlyphArrangement::drawGlyphUnderline (const Graphics& g, const PositionedGlyph& pg,
|
|
int i, AffineTransform transform) const
|
|
{
|
|
auto lineThickness = (pg.font.getDescent()) * 0.3f;
|
|
auto nextX = pg.x + pg.w;
|
|
|
|
if (i < glyphs.size() - 1 && glyphs.getReference (i + 1).y == pg.y)
|
|
nextX = glyphs.getReference (i + 1).x;
|
|
|
|
Path p;
|
|
p.addRectangle (pg.x, pg.y + lineThickness * 2.0f, nextX - pg.x, lineThickness);
|
|
g.fillPath (p, transform);
|
|
}
|
|
|
|
void GlyphArrangement::draw (const Graphics& g) const
|
|
{
|
|
draw (g, {});
|
|
}
|
|
|
|
void GlyphArrangement::draw (const Graphics& g, AffineTransform transform) const
|
|
{
|
|
auto& context = g.getInternalContext();
|
|
auto lastFont = context.getFont();
|
|
bool needToRestore = false;
|
|
|
|
for (int i = 0; i < glyphs.size(); ++i)
|
|
{
|
|
auto& pg = glyphs.getReference(i);
|
|
|
|
if (pg.font.isUnderlined())
|
|
drawGlyphUnderline (g, pg, i, transform);
|
|
|
|
if (! pg.isWhitespace())
|
|
{
|
|
if (lastFont != pg.font)
|
|
{
|
|
lastFont = pg.font;
|
|
|
|
if (! needToRestore)
|
|
{
|
|
needToRestore = true;
|
|
context.saveState();
|
|
}
|
|
|
|
context.setFont (lastFont);
|
|
}
|
|
|
|
context.drawGlyph (pg.glyph, AffineTransform::translation (pg.x, pg.y)
|
|
.followedBy (transform));
|
|
}
|
|
}
|
|
|
|
if (needToRestore)
|
|
context.restoreState();
|
|
}
|
|
|
|
void GlyphArrangement::createPath (Path& path) const
|
|
{
|
|
for (auto& g : glyphs)
|
|
g.createPath (path);
|
|
}
|
|
|
|
int GlyphArrangement::findGlyphIndexAt (float x, float y) const
|
|
{
|
|
for (int i = 0; i < glyphs.size(); ++i)
|
|
if (glyphs.getReference (i).hitTest (x, y))
|
|
return i;
|
|
|
|
return -1;
|
|
}
|
|
|
|
} // namespace juce
|