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Upgraded visualization libraries

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Major refactoring of color legend framework
Added discrete log color legend
p4#: 18989
This commit is contained in:
Magne Sjaastad
2012-10-02 10:17:52 +02:00
parent 082560b2a5
commit 9c1ce7591e
163 changed files with 8917 additions and 3214 deletions
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117
VisualizationModules/LibRender/cvfFont.cpp
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@@ -50,51 +50,108 @@ Font::~Font()
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
float Font::lineSpacing()
{
ref<Glyph> glyph = getGlyph(L'A');
float spacing = cvf::Math::floor(static_cast<float>(glyph->height())*1.75f);
return spacing;
}
//--------------------------------------------------------------------------------------------------
/// Get the extent (width and height) of the given text with this font in pixels
//--------------------------------------------------------------------------------------------------
cvf::Vec2ui Font::textExtent(const String& text)
{
Vec2ui textBB(0,0);
std::vector<cvf::String> lines = text.split("\n");
int minHeight = std::numeric_limits<int>::max();
int maxHeight = std::numeric_limits<int>::min();
size_t numCharacters = text.size();
for (size_t j = 0; j < numCharacters; j++)
float maxLineWidth = 0;
uint textHeight = 0;
uint lineSpacing = static_cast<uint>(this->lineSpacing());
for (size_t lineIdx = 0; lineIdx < lines.size(); ++lineIdx)
{
wchar_t character = text[j];
ref<Glyph> glyph = getGlyph(character);
String line = lines[lineIdx];
size_t numCharacters = line.size();
float lineWidth = 0;
// Find bottom and top with regards to baseline (Y = 0)
int minY = static_cast<int>(glyph->horizontalBearingY()) - static_cast<int>(glyph->height());
int maxY = glyph->horizontalBearingY();
if (minHeight > minY) minHeight = minY;
if (maxHeight < maxY) maxHeight = maxY;
uint charWidth = 0;
if (j < (numCharacters - 1))
for (size_t j = 0; j < numCharacters; ++j)
{
charWidth = advance(character, text[j + 1]);
wchar_t character = line[j];
// Jump to the next character in the string, if any
if (j < (numCharacters - 1))
{
float advance = static_cast<float>(this->advance(character, text[j + 1]));
lineWidth += advance;
}
else
{
ref<Glyph> glyph = getGlyph(character);
lineWidth += static_cast<float>(glyph->width()) + static_cast<float>(glyph->horizontalBearingX());
}
}
maxLineWidth = CVF_MAX(lineWidth, maxLineWidth);
if (lineIdx == 0)
{
ref<Glyph> glyph = getGlyph(L'A');
textHeight += glyph->height();
}
else
{
charWidth = glyph->width() + glyph->horizontalBearingX();
textHeight += lineSpacing;
}
textBB.x() += charWidth;
}
if (maxHeight < minHeight)
{
return Vec2ui(0,0);
}
textBB.y() = static_cast<uint>(maxHeight - minHeight);
return textBB;
return Vec2ui(static_cast<uint>(maxLineWidth), textHeight);
}
// Vec2ui textBB(0,0);
//
// int minHeight = std::numeric_limits<int>::max();
// int maxHeight = std::numeric_limits<int>::min();
//
// size_t numCharacters = text.size();
// for (size_t j = 0; j < numCharacters; j++)
// {
// wchar_t character = text[j];
// ref<Glyph> glyph = getGlyph(character);
//
// // Find bottom and top with regards to baseline (Y = 0)
// int minY = static_cast<int>(glyph->horizontalBearingY()) - static_cast<int>(glyph->height());
// int maxY = glyph->horizontalBearingY();
//
// if (minHeight > minY) minHeight = minY;
// if (maxHeight < maxY) maxHeight = maxY;
//
// uint charWidth = 0;
//
// if (j < (numCharacters - 1))
// {
// charWidth = advance(character, text[j + 1]);
// }
// else
// {
// charWidth = glyph->width() + glyph->horizontalBearingX();
// }
//
// textBB.x() += charWidth;
// }
//
// if (maxHeight < minHeight)
// {
// return Vec2ui(0,0);
// }
//
// textBB.y() = static_cast<uint>(maxHeight - minHeight);
//
// return textBB;
} // namespace cvf