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- // Taken from: https://github.com/skyrpex/RichText
- ////////////////////////////////////////////////////////////////////////////////
- // Headers
- ////////////////////////////////////////////////////////////////////////////////
- #include "RichText.hpp"
- #include <cpp3ds/Graphics/Font.hpp>
- #include <cpp3ds/Graphics/Rect.hpp>
- #include <cpp3ds/Graphics/RenderTarget.hpp>
- #include <cpp3ds/System/String.hpp>
- namespace util3ds
- {
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::Line::setCharacterSize(unsigned int size)
- {
- for (cpp3ds::Text &text : m_texts)
- text.setCharacterSize(size);
- updateGeometry();
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::Line::setFont(const cpp3ds::Font &font)
- {
- for (cpp3ds::Text &text : m_texts)
- text.setFont(font);
- updateGeometry();
- }
- ////////////////////////////////////////////////////////////////////////////////
- std::vector<cpp3ds::Text> &RichText::Line::getTexts() const
- {
- return m_texts;
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::Line::appendText(cpp3ds::Text text)
- {
- // Set text offset
- updateTextAndGeometry(text);
- // Push back
- m_texts.push_back(std::move(text));
- }
- ////////////////////////////////////////////////////////////////////////////////
- cpp3ds::FloatRect RichText::Line::getLocalBounds() const
- {
- return m_bounds;
- }
- ////////////////////////////////////////////////////////////////////////////////
- cpp3ds::FloatRect RichText::Line::getGlobalBounds() const
- {
- return getTransform().transformRect(getLocalBounds());
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::Line::draw(cpp3ds::RenderTarget &target, cpp3ds::RenderStates states) const
- {
- states.transform *= getTransform();
- for (const cpp3ds::Text &text : m_texts)
- target.draw(text, states);
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::Line::updateGeometry() const
- {
- m_bounds = cpp3ds::FloatRect();
- for (cpp3ds::Text &text : m_texts)
- updateTextAndGeometry(text);
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::Line::updateTextAndGeometry(cpp3ds::Text &text) const
- {
- // Set text offset
- text.setPosition(m_bounds.width, 0.f);
- // Update bounds
- int lineSpacing = text.getFont()->getLineSpacing(text.getCharacterSize());
- m_bounds.height = std::max(m_bounds.height, static_cast<float>(lineSpacing));
- m_bounds.width += text.getGlobalBounds().width;
- }
- ////////////////////////////////////////////////////////////////////////////////
- RichText::RichText()
- : RichText(nullptr)
- {
- }
- ////////////////////////////////////////////////////////////////////////////////
- RichText::RichText(const cpp3ds::Font &font)
- : RichText(&font)
- {
- }
- ////////////////////////////////////////////////////////////////////////////////
- RichText & RichText::operator << (const cpp3ds::Color &color)
- {
- m_currentColor = color;
- return *this;
- }
- ////////////////////////////////////////////////////////////////////////////////
- RichText & RichText::operator << (cpp3ds::Text::Style style)
- {
- m_currentStyle = style;
- return *this;
- }
- ////////////////////////////////////////////////////////////////////////////////
- std::vector<cpp3ds::String> explode(const cpp3ds::String &string, cpp3ds::Uint32 delimiter) {
- if (string.isEmpty())
- return std::vector<cpp3ds::String>();
- // For each character in the string
- std::vector<cpp3ds::String> result;
- cpp3ds::String buffer;
- for (cpp3ds::Uint32 character : string) {
- // If we've hit the delimiter character
- if (character == delimiter) {
- // Add them to the result vector
- result.push_back(buffer);
- buffer.clear();
- } else {
- // Accumulate the next character into the sequence
- buffer += character;
- }
- }
- // Add to the result if buffer still has contents or if the last character is a delimiter
- if (!buffer.isEmpty() || string[string.getSize() - 1] == delimiter)
- result.push_back(buffer);
- return result;
- }
- ////////////////////////////////////////////////////////////////////////////////
- RichText & RichText::operator << (const cpp3ds::String &string)
- {
- // Maybe skip
- if (string.isEmpty())
- return *this;
- // Explode into substrings
- std::vector<cpp3ds::String> subStrings = explode(string, '\n');
- // Append first substring using the last line
- auto it = subStrings.begin();
- if (it != subStrings.end()) {
- // If there isn't any line, just create it
- if (m_lines.empty())
- m_lines.resize(1);
- // Remove last line's height
- Line &line = m_lines.back();
- m_bounds.height -= line.getGlobalBounds().height;
- // Append text
- line.appendText(createText(*it));
- // Update bounds
- m_bounds.height += line.getGlobalBounds().height;
- m_bounds.width = std::max(m_bounds.width, line.getGlobalBounds().width);
- }
- // Append the rest of substrings as new lines
- while (++it != subStrings.end()) {
- Line line;
- line.setPosition(0.f, m_bounds.height);
- line.appendText(createText(*it));
- m_lines.push_back(std::move(line));
- // Update bounds
- m_bounds.height += line.getGlobalBounds().height;
- m_bounds.width = std::max(m_bounds.width, line.getGlobalBounds().width);
- }
- // Return
- return *this;
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::setCharacterSize(unsigned int size)
- {
- // Maybe skip
- if (m_characterSize == size)
- return;
- // Update character size
- m_characterSize = size;
- // Set texts character size
- for (Line &line : m_lines)
- line.setCharacterSize(size);
- updateGeometry();
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::setFont(const cpp3ds::Font &font)
- {
- // Maybe skip
- if (m_font == &font)
- return;
- // Update font
- m_font = &font;
- // Set texts font
- for (Line &line : m_lines)
- line.setFont(font);
- updateGeometry();
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::clear()
- {
- // Clear texts
- m_lines.clear();
- // Reset bounds
- m_bounds = cpp3ds::FloatRect();
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::useSystemFont()
- {
- m_useSystemFont = true;
- for (auto& line : m_lines)
- for (auto& text : line.getTexts())
- text.useSystemFont();
- }
- ////////////////////////////////////////////////////////////////////////////////
- const std::vector<RichText::Line> &RichText::getLines() const
- {
- return m_lines;
- }
- ////////////////////////////////////////////////////////////////////////////////
- unsigned int RichText::getCharacterSize() const
- {
- return m_characterSize;
- }
- ////////////////////////////////////////////////////////////////////////////////
- const cpp3ds::Font *RichText::getFont() const
- {
- return m_font;
- }
- ////////////////////////////////////////////////////////////
- cpp3ds::FloatRect RichText::getLocalBounds() const
- {
- return m_bounds;
- }
- ////////////////////////////////////////////////////////////
- cpp3ds::FloatRect RichText::getGlobalBounds() const
- {
- return getTransform().transformRect(getLocalBounds());
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::draw(cpp3ds::RenderTarget& target, cpp3ds::RenderStates states) const
- {
- states.transform *= getTransform();
- for (const Line &line : m_lines)
- target.draw(line, states);
- }
- ////////////////////////////////////////////////////////////////////////////////
- RichText::RichText(const cpp3ds::Font *font)
- : m_font(font),
- m_characterSize(30),
- m_currentColor(cpp3ds::Color::White),
- m_currentStyle(cpp3ds::Text::Regular),
- m_useSystemFont(false)
- {
- }
- ////////////////////////////////////////////////////////////////////////////////
- cpp3ds::Text RichText::createText(const cpp3ds::String &string) const
- {
- cpp3ds::Text text;
- text.setString(string);
- text.setFillColor(m_currentColor);
- text.setStyle(m_currentStyle);
- text.setCharacterSize(m_characterSize);
- if (m_useSystemFont)
- text.useSystemFont();
- else if (m_font)
- text.setFont(*m_font);
- return text;
- }
- ////////////////////////////////////////////////////////////////////////////////
- void RichText::updateGeometry() const
- {
- m_bounds = cpp3ds::FloatRect();
- for (Line &line : m_lines) {
- line.setPosition(0.f, m_bounds.height);
- m_bounds.height += line.getGlobalBounds().height;
- m_bounds.width = std::max(m_bounds.width, line.getGlobalBounds().width);
- }
- }
- void RichText::setOpacity(cpp3ds::Uint8 alpha)
- {
- for (auto& line : m_lines)
- line.setOpacity(alpha);
- }
- cpp3ds::Uint8 RichText::getOpacity() const
- {
- if (m_lines.empty())
- return 0;
- return m_lines.front().getOpacity();
- }
- void RichText::Line::setOpacity(cpp3ds::Uint8 alpha)
- {
- for (auto& text : m_texts) {
- cpp3ds::Color color = text.getFillColor();
- color.a = alpha;
- text.setFillColor(color);
- }
- }
- cpp3ds::Uint8 RichText::Line::getOpacity() const
- {
- if (m_texts.empty())
- return 0;
- return m_texts.front().getFillColor().a;
- }
- } // namespace util3ds
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