enum fastuidraw::return_code
fastuidraw::GlyphRenderDataCoverage::
upload_to_atlas(const GlyphAtlas::handle &atlas,
GlyphLocation &atlas_location,
GlyphLocation &secondary_atlas_location,
int &geometry_offset,
int &geometry_length) const
{
GlyphDataPrivate *d;
d = reinterpret_cast<GlyphDataPrivate*>(m_d);
atlas_location = atlas->allocate(d->m_resolution, make_c_array(d->m_texels));
secondary_atlas_location = GlyphLocation();
geometry_offset = -1;
geometry_length = 0;
return atlas_location.valid() ?
routine_success :
routine_fail;
}
void
VectorAttributes::SetFromNode(DataNode *parentNode)
{
if(parentNode == 0)
return;
DataNode *searchNode = parentNode->GetNode("VectorAttributes");
if(searchNode == 0)
return;
DataNode *node;
if((node = searchNode->GetNode("glyphLocation")) != 0)
{
// Allow enums to be int or string in the config file
if(node->GetNodeType() == INT_NODE)
{
int ival = node->AsInt();
if(ival >= 0 && ival < 2)
SetGlyphLocation(GlyphLocation(ival));
}
else if(node->GetNodeType() == STRING_NODE)
{
GlyphLocation value;
if(GlyphLocation_FromString(node->AsString(), value))
SetGlyphLocation(value);
}
}
if((node = searchNode->GetNode("useStride")) != 0)
SetUseStride(node->AsBool());
if((node = searchNode->GetNode("stride")) != 0)
SetStride(node->AsInt());
if((node = searchNode->GetNode("nVectors")) != 0)
SetNVectors(node->AsInt());
if((node = searchNode->GetNode("lineStyle")) != 0)
SetLineStyle(node->AsInt());
if((node = searchNode->GetNode("lineWidth")) != 0)
SetLineWidth(node->AsInt());
if((node = searchNode->GetNode("scale")) != 0)
SetScale(node->AsDouble());
if((node = searchNode->GetNode("scaleByMagnitude")) != 0)
SetScaleByMagnitude(node->AsBool());
if((node = searchNode->GetNode("autoScale")) != 0)
SetAutoScale(node->AsBool());
if((node = searchNode->GetNode("headSize")) != 0)
SetHeadSize(node->AsDouble());
if((node = searchNode->GetNode("headOn")) != 0)
SetHeadOn(node->AsBool());
if((node = searchNode->GetNode("colorByMag")) != 0)
SetColorByMag(node->AsBool());
if((node = searchNode->GetNode("useLegend")) != 0)
SetUseLegend(node->AsBool());
if((node = searchNode->GetNode("vectorColor")) != 0)
vectorColor.SetFromNode(node);
if((node = searchNode->GetNode("colorTableName")) != 0)
SetColorTableName(node->AsString());
if((node = searchNode->GetNode("invertColorTable")) != 0)
SetInvertColorTable(node->AsBool());
if((node = searchNode->GetNode("vectorOrigin")) != 0)
{
// Allow enums to be int or string in the config file
if(node->GetNodeType() == INT_NODE)
{
int ival = node->AsInt();
if(ival >= 0 && ival < 3)
SetVectorOrigin(OriginType(ival));
}
else if(node->GetNodeType() == STRING_NODE)
{
OriginType value;
if(OriginType_FromString(node->AsString(), value))
SetVectorOrigin(value);
}
}
if((node = searchNode->GetNode("minFlag")) != 0)
SetMinFlag(node->AsBool());
if((node = searchNode->GetNode("maxFlag")) != 0)
SetMaxFlag(node->AsBool());
if((node = searchNode->GetNode("limitsMode")) != 0)
{
// Allow enums to be int or string in the config file
if(node->GetNodeType() == INT_NODE)
{
int ival = node->AsInt();
if(ival >= 0 && ival < 2)
SetLimitsMode(LimitsMode(ival));
}
else if(node->GetNodeType() == STRING_NODE)
{
LimitsMode value;
if(LimitsMode_FromString(node->AsString(), value))
SetLimitsMode(value);
}
}
if((node = searchNode->GetNode("min")) != 0)
SetMin(node->AsDouble());
if((node = searchNode->GetNode("max")) != 0)
SetMax(node->AsDouble());
if((node = searchNode->GetNode("lineStem")) != 0)
{
// Allow enums to be int or string in the config file
if(node->GetNodeType() == INT_NODE)
{
int ival = node->AsInt();
if(ival >= 0 && ival < 2)
SetLineStem(LineStem(ival));
}
else if(node->GetNodeType() == STRING_NODE)
{
LineStem value;
if(LineStem_FromString(node->AsString(), value))
SetLineStem(value);
}
}
if((node = searchNode->GetNode("geometryQuality")) != 0)
{
// Allow enums to be int or string in the config file
if(node->GetNodeType() == INT_NODE)
{
int ival = node->AsInt();
if(ival >= 0 && ival < 2)
SetGeometryQuality(Quality(ival));
}
else if(node->GetNodeType() == STRING_NODE)
{
Quality value;
if(Quality_FromString(node->AsString(), value))
SetGeometryQuality(value);
}
}
if((node = searchNode->GetNode("stemWidth")) != 0)
SetStemWidth(node->AsDouble());
if((node = searchNode->GetNode("origOnly")) != 0)
SetOrigOnly(node->AsBool());
if((node = searchNode->GetNode("glyphType")) != 0)
{
// Allow enums to be int or string in the config file
if(node->GetNodeType() == INT_NODE)
{
int ival = node->AsInt();
if(ival >= 0 && ival < 2)
SetGlyphType(GlyphType(ival));
}
else if(node->GetNodeType() == STRING_NODE)
{
GlyphType value;
if(GlyphType_FromString(node->AsString(), value))
SetGlyphType(value);
}
}
}
VectorAttributes::GlyphLocation
VectorAttributes::GetGlyphLocation() const
{
return GlyphLocation(glyphLocation);
}
void Text::UpdateCharLocations()
{
// Remember the font face to see if it's still valid when it's time to render
FontFace* face = font_ ? font_->GetFace(fontSize_) : nullptr;
if (!face)
return;
fontFace_ = face;
auto rowHeight = RoundToInt(rowSpacing_ * rowHeight_);
// Store position & size of each character, and locations per texture page
unsigned numChars = unicodeText_.size();
charLocations_.resize(numChars + 1);
pageGlyphLocations_.resize(face->GetTextures().size());
for (unsigned i = 0; i < pageGlyphLocations_.size(); ++i)
pageGlyphLocations_[i].clear();
IntVector2 offset = font_->GetTotalGlyphOffset(fontSize_);
unsigned rowIndex = 0;
unsigned lastFilled = 0;
float x = Round(GetRowStartPosition(rowIndex) + offset.x_);
float y = Round(offset.y_);
for (unsigned i = 0; i < printText_.size(); ++i)
{
CharLocation loc;
loc.position_ = Vector2(x, y);
unsigned c = printText_[i];
if (c != '\n')
{
const FontGlyph* glyph = face->GetGlyph(c);
loc.size_ = Vector2(glyph ? glyph->advanceX_ : 0, rowHeight_);
if (glyph)
{
// Store glyph's location for rendering. Verify that glyph page is valid
if (glyph->page_ < pageGlyphLocations_.size())
pageGlyphLocations_[glyph->page_].push_back(GlyphLocation(x, y, glyph));
x += glyph->advanceX_;
if (i < printText_.size() - 1)
x += face->GetKerning(c, printText_[i + 1]);
}
}
else
{
loc.size_ = Vector2::ZERO;
x = GetRowStartPosition(++rowIndex);
y += rowHeight;
}
if (lastFilled > printToText_[i])
lastFilled = printToText_[i];
// Fill gaps in case characters were skipped from printing
for (unsigned j = lastFilled; j <= printToText_[i]; ++j)
charLocations_[j] = loc;
lastFilled = printToText_[i] + 1;
}
// Store the ending position
charLocations_[numChars].position_ = Vector2(x, y);
charLocations_[numChars].size_ = Vector2::ZERO;
charLocationsDirty_ = false;
}
void Text::GetBatches(PODVector<UIBatch>& batches, PODVector<float>& vertexData, const IntRect& currentScissor)
{
// Hovering and/or whole selection batch
if ((hovering_ && hoverColor_.a_ > 0.0) || (selected_ && selectionColor_.a_ > 0.0f))
{
bool both = hovering_ && selected_ && hoverColor_.a_ > 0.0 && selectionColor_.a_ > 0.0f;
UIBatch batch(this, BLEND_ALPHA, currentScissor, 0, &vertexData);
batch.AddQuad(0, 0, GetWidth(), GetHeight(), 0, 0, 0, 0, both ? selectionColor_.Lerp(hoverColor_, 0.5f) :
(selected_ && selectionColor_.a_ > 0.0f ? selectionColor_ : hoverColor_));
UIBatch::AddOrMerge(batch, batches);
}
// Partial selection batch
if (!selected_ && selectionLength_ && charSizes_.Size() >= selectionStart_ + selectionLength_ && selectionColor_.a_ > 0.0f)
{
UIBatch batch(this, BLEND_ALPHA, currentScissor, 0, &vertexData);
IntVector2 currentStart = charPositions_[selectionStart_];
IntVector2 currentEnd = currentStart;
for (unsigned i = selectionStart_; i < selectionStart_ + selectionLength_; ++i)
{
// Check if row changes, and start a new quad in that case
if (charSizes_[i].x_ && charSizes_[i].y_)
{
if (charPositions_[i].y_ != currentStart.y_)
{
batch.AddQuad(currentStart.x_, currentStart.y_, currentEnd.x_ - currentStart.x_, currentEnd.y_ - currentStart.y_,
0, 0, 0, 0, selectionColor_);
currentStart = charPositions_[i];
currentEnd = currentStart + charSizes_[i];
}
else
{
currentEnd.x_ += charSizes_[i].x_;
currentEnd.y_ = Max(currentStart.y_ + charSizes_[i].y_, currentEnd.y_);
}
}
}
if (currentEnd != currentStart)
{
batch.AddQuad(currentStart.x_, currentStart.y_, currentEnd.x_ - currentStart.x_, currentEnd.y_ - currentStart.y_,
0, 0, 0, 0, selectionColor_);
}
UIBatch::AddOrMerge(batch, batches);
}
// Text batch
if (font_)
{
const FontFace* face = font_->GetFace(fontSize_);
if (!face)
return;
if (face->textures_.Size() > 1)
{
// Only traversing thru the printText once regardless of number of textures/pages in the font
Vector<PODVector<GlyphLocation> > pageGlyphLocations(face->textures_.Size());
unsigned rowIndex = 0;
int x = GetRowStartPosition(rowIndex);
int y = 0;
for (unsigned i = 0; i < printText_.Size(); ++i)
{
unsigned c = printText_[i];
if (c != '\n')
{
const FontGlyph* p = face->GetGlyph(c);
if (!p)
continue;
pageGlyphLocations[p->page_].Push(GlyphLocation(x, y, p));
x += p->advanceX_;
if (i < printText_.Size() - 1)
x += face->GetKerning(c, printText_[i + 1]);
}
else
{
x = GetRowStartPosition(++rowIndex);
y += rowHeight_;
}
}
for (unsigned n = 0; n < face->textures_.Size(); ++n)
{
// One batch per texture/page
UIBatch pageBatch(this, BLEND_ALPHA, currentScissor, face->textures_[n], &vertexData);
const PODVector<GlyphLocation>& pageGlyphLocation = pageGlyphLocations[n];
for (unsigned i = 0; i < pageGlyphLocation.Size(); ++i)
{
const GlyphLocation& glyphLocation = pageGlyphLocation[i];
const FontGlyph& glyph = *glyphLocation.glyph_;
pageBatch.AddQuad(glyphLocation.x_ + glyph.offsetX_, glyphLocation.y_ + glyph.offsetY_, glyph.width_, glyph.height_, glyph.x_, glyph.y_);
}
batches.Push(pageBatch);
}
}
else
{
// If only one texture page, construct the UI batch directly
unsigned rowIndex = 0;
int x = GetRowStartPosition(rowIndex);
int y = 0;
UIBatch batch(this, BLEND_ALPHA, currentScissor, face->textures_[0], &vertexData);
for (unsigned i = 0; i < printText_.Size(); ++i)
{
unsigned c = printText_[i];
if (c != '\n')
{
const FontGlyph* p = face->GetGlyph(c);
if (!p)
continue;
batch.AddQuad(x + p->offsetX_, y + p->offsetY_, p->width_, p->height_, p->x_, p->y_);
x += p->advanceX_;
if (i < printText_.Size() - 1)
x += face->GetKerning(c, printText_[i + 1]);
}
else
{
x = GetRowStartPosition(++rowIndex);
y += rowHeight_;
}
}
UIBatch::AddOrMerge(batch, batches);
}
}
// Reset hovering for next frame
hovering_ = false;
}