Support braille, temporary disable video cache to support seeking in long videos on youtube...

1 files changed, 42 insertions, 20 deletions

diff --git a/src/Text.cpp b/src/Text.cpp
index 138cd9d..32aae2e 100644
--- a/src/Text.cpp
+++ b/src/Text.cpp
@@ -16,6 +16,12 @@ namespace QuickMedia
     static const float WORD_WRAP_MIN_SIZE = 80.0f;
     static const sf::Color URL_COLOR(35, 140, 245);
 
+    static const size_t FONT_INDEX_LATIN = 0;
+    static const size_t FONT_INDEX_CJK = 1;
+    static const size_t FONT_INDEX_SYMBOLS = 2;
+    static const size_t FONT_INDEX_EMOJI = 3;
+    static const size_t FONT_ARRAY_SIZE = 4;
+
     size_t StringViewUtf32::find(const StringViewUtf32 &other, size_t offset) const {
         if(offset >= size)
             return -1;
@@ -46,10 +52,8 @@ namespace QuickMedia
         caretIndex(0),
         caret_offset_x(0.0f)
     {
-        vertices[0].setPrimitiveType(sf::PrimitiveType::Triangles);
-        vertices[1].setPrimitiveType(sf::PrimitiveType::Triangles);
-        vertices[2].setPrimitiveType(sf::PrimitiveType::Triangles);
-        for(int i = 0; i < 3; ++i) {
+        for(size_t i = 0; i < FONT_ARRAY_SIZE; ++i) {
+            vertices[i].setPrimitiveType(sf::PrimitiveType::Triangles);
             vertex_buffers[i] = sf::VertexBuffer(sf::PrimitiveType::Triangles, sf::VertexBuffer::Static);
         }
         setString(std::move(_str));
@@ -240,6 +244,12 @@ namespace QuickMedia
         return is_chinese_codepoint(codepoint) || is_japanese_codepoint(codepoint) || is_korean_codepoint(codepoint);
     }
 
+    static bool is_symbol_codepoint(sf::Uint32 codepoint) {
+        // TODO: Add the remaining NotoSansSymbols2-Regular.ttf codepoints as well.
+        // See codepoint ranges with: fc-query --format='%{charset}\n' /usr/share/fonts/noto/NotoSansSymbols2-Regular.ttf.
+        return codepoint >= 0x2800 && codepoint <= 0x28FF; // Braille
+    }
+
     static size_t find_end_of_cjk(const sf::Uint32 *str, size_t size) {
         for(size_t i = 0; i < size; ++i) {
             if(!is_cjk_codepoint(str[i]))
@@ -256,9 +266,17 @@ namespace QuickMedia
         return size;
     }
 
-    static size_t find_end_of_non_cjk_and_non_emoji(const sf::Uint32 *str, size_t size) {
+    static size_t find_end_of_symbol(const sf::Uint32 *str, size_t size) {
+        for(size_t i = 0; i < size; ++i) {
+            if(!is_symbol_codepoint(str[i]))
+                return i;
+        }
+        return size;
+    }
+
+    static size_t find_end_latin(const sf::Uint32 *str, size_t size) {
         for(size_t i = 0; i < size; ++i) {
-            if(is_cjk_codepoint(str[i]) || codepoint_is_emoji(str[i]))
+            if(is_cjk_codepoint(str[i]) || codepoint_is_emoji(str[i]) || is_symbol_codepoint(str[i]))
                 return i;
         }
         return size;
@@ -271,14 +289,17 @@ namespace QuickMedia
         while(index < size) {
             size_t offset;
             TextElement::TextType text_type = TextElement::TextType::LATIN;
-            if(is_cjk_codepoint(str[index])) {
+            if(is_symbol_codepoint(str[index])) {
+                text_type = TextElement::TextType::SYMBOL;
+                offset = find_end_of_symbol(str.getData() + index + 1, size - index - 1);
+            } else if(is_cjk_codepoint(str[index])) {
                 text_type = TextElement::TextType::CJK;
                 offset = find_end_of_cjk(str.getData() + index + 1, size - index - 1);
             } else if(codepoint_is_emoji(str[index])) {
                 text_type = TextElement::TextType::EMOJI;
                 offset = find_end_of_emoji(str.getData() + index + 1, size - index - 1);
             } else {
-                offset = find_end_of_non_cjk_and_non_emoji(str.getData() + index + 1, size - index - 1);
+                offset = find_end_latin(str.getData() + index + 1, size - index - 1);
             }
             textElements.push_back({ StringViewUtf32(str.getData() + index, offset + 1), TextElement::Type::TEXT });
             textElements.back().text_type = text_type;
@@ -359,7 +380,7 @@ namespace QuickMedia
 
         dirty = false;
         vertices_linear.clear();
-        for(int i = 0; i < 3; ++i) {
+        for(size_t i = 0; i < FONT_ARRAY_SIZE; ++i) {
             vertices[i].clear();
             vertices[i].resize(0);
         }
@@ -384,13 +405,16 @@ namespace QuickMedia
         {
             TextElement &textElement = textElements[textElementIndex];
             const sf::Font *ff = latin_font;
-            int vertices_index = 0;
+            int vertices_index = FONT_INDEX_LATIN;
             prevCodePoint = 0;
             if(textElement.text_type == TextElement::TextType::CJK) {
                 ff = FontLoader::get_font(FontLoader::FontType::CJK);
-                vertices_index = 1;
+                vertices_index = FONT_INDEX_CJK;
+            } else if(textElement.text_type == TextElement::TextType::SYMBOL) {
+                ff = FontLoader::get_font(FontLoader::FontType::SYMBOLS);
+                vertices_index = FONT_INDEX_SYMBOLS;
             } else if(textElement.text_type == TextElement::TextType::EMOJI) {
-                vertices_index = 2;
+                vertices_index = FONT_INDEX_EMOJI;
                 textElement.position = glyphPos;
                 sf::Color emoji_color(255, 255, 255, color.a);
                 for(size_t i = 0; i < textElement.text.size; ++i)
@@ -599,14 +623,14 @@ namespace QuickMedia
         boundingBox.height = num_lines * line_height;
 
         // TODO: Clear |vertices| somehow even with editable text
-        for(int i = 0; i < 3; ++i) {
+        for(size_t i = 0; i < FONT_ARRAY_SIZE; ++i) {
             vertex_buffers[i].create(vertices[i].getVertexCount());
             vertex_buffers[i].update(&vertices[i][0], vertices[i].getVertexCount(), 0);
         }
 
         //url_ranges.clear();
         if(!editable) {
-            for(int i = 0; i < 3; ++i) {
+            for(size_t i = 0; i < FONT_ARRAY_SIZE; ++i) {
                 vertices[i].clear();
                 vertices[i].resize(0);
             }
@@ -911,8 +935,8 @@ namespace QuickMedia
         const float vspace = latin_font->getLineSpacing(characterSize);
         pos.y += floor(vspace); // Origin is at bottom left, we want it to be at top left
         
-        const FontLoader::FontType font_types[] = { latin_font_type, FontLoader::FontType::CJK };
-        for(size_t i = 0; i < 2; ++i) {
+        const FontLoader::FontType font_types[] = { latin_font_type, FontLoader::FontType::CJK, FontLoader::FontType::SYMBOLS };
+        for(size_t i = 0; i < FONT_INDEX_EMOJI; ++i) {
             if(vertex_buffers[i].getVertexCount() == 0)
                 continue;
 
@@ -921,15 +945,13 @@ namespace QuickMedia
             states.transform.translate(pos);
             states.texture = &font->getTexture(characterSize);
             target.draw(vertex_buffers[i], states);
-            //target.draw(vertices[i], states);
         }
 
-        if(vertex_buffers[2].getVertexCount() > 0) {
+        if(vertex_buffers[FONT_INDEX_EMOJI].getVertexCount() > 0) {
             sf::RenderStates states;
             states.transform.translate(pos);
             states.texture = TextureLoader::get_texture("images/emoji.png");
-            target.draw(vertex_buffers[2], states);
-            //target.draw(vertices[2], states);
+            target.draw(vertex_buffers[FONT_INDEX_EMOJI], states);
         }
         
         if(!editable) return true;