Fix emoji drawn outside border when max lines set, username autocomplete caret not moving to end of text, multiple images on the same page with different sizes (downscaled)

1 files changed, 67 insertions, 30 deletions

diff --git a/src/Text.cpp b/src/Text.cpp
index 6bc777d..44bf73c 100644
--- a/src/Text.cpp
+++ b/src/Text.cpp
@@ -228,13 +228,42 @@ namespace QuickMedia
         return characterSize;
     }
 
+    static size_t utf8_get_num_codepoints(const char *str, size_t size) {
+        size_t codepoint_index = 0;
+        for(size_t i = 0; i < size;) {
+            unsigned char *cp = (unsigned char*)&str[i];
+            uint32_t codepoint;
+            size_t clen;
+            if(!mgl::utf8_decode(cp, size - i, &codepoint, &clen)) {
+                codepoint = *cp;
+                clen = 1;
+            }
+
+            i += clen;
+            ++codepoint_index;
+        }
+        return codepoint_index;
+    }
+
     void Text::replace(size_t start_index, size_t length, const std::string &insert_str) {
-        int string_diff = (int)insert_str.size() - (int)length;
+        const bool at_end = start_index == str.size();
         str.replace(start_index, length, insert_str);
         dirty = true;
         dirtyText = true;
-        if(caretIndex >= (int)start_index) {
-            caretIndex += string_diff;
+        if(!at_end) {
+            std::vector<TextElement> new_text_elements;
+            Text::split_text_by_type(new_text_elements, insert_str, 0.0f);
+            int caret_advance = 0;
+            for(auto &text_element : new_text_elements) {
+                if(text_element.type == TextElement::Type::IMAGE || text_element.text_type == TextElement::TextType::EMOJI) {
+                    caret_advance += 1;
+                } else {
+                    caret_advance += utf8_get_num_codepoints(text_element.text.data(), text_element.text.size());
+                }
+            }
+
+            fprintf(stderr, "old caret index: %d, advance: %d\n", caretIndex, caret_advance);
+            caretIndex += caret_advance;
             dirtyCaret = true;
         }
     }
@@ -556,6 +585,10 @@ namespace QuickMedia
         return vertices[vertex_ref.vertices_index][vertex_ref.index + 5].position.x;
     }
 
+    float Text::get_text_quad_bottom_side(const VertexRef &vertex_ref) const {
+        return vertices[vertex_ref.vertices_index][vertex_ref.index + 4].position.y;
+    }
+
     float Text::get_caret_offset_by_caret_index(int index) const {
         const int num_vertices = vertices_linear.size();
         if(num_vertices == 0)
@@ -603,23 +636,6 @@ namespace QuickMedia
     static mgl::vec2f vec2f_floor(mgl::vec2f value) {
         return mgl::vec2f((int)value.x, (int)value.y);
     }
-
-    static size_t utf8_get_num_codepoints(const char *str, size_t size) {
-        size_t codepoint_index = 0;
-        for(size_t i = 0; i < size;) {
-            unsigned char *cp = (unsigned char*)&str[i];
-            uint32_t codepoint;
-            size_t clen;
-            if(!mgl::utf8_decode(cp, size - i, &codepoint, &clen)) {
-                codepoint = *cp;
-                clen = 1;
-            }
-
-            i += clen;
-            ++codepoint_index;
-        }
-        return codepoint_index;
-    }
     
     void Text::updateGeometry(bool update_even_if_not_dirty) {
         if(dirtyText) {
@@ -652,9 +668,10 @@ namespace QuickMedia
             latin_font = FontLoader::get_font(FontLoader::FontType::LATIN, characterSize);
 
         const float latin_font_width = latin_font->get_glyph(' ').advance;
-        const float hspace = latin_font_width + characterSpacing;
+        const float hspace_latin = latin_font_width + characterSpacing;
         const float vspace = font_get_real_height(latin_font);
         const float emoji_spacing = 2.0f;
+        int hspace_monospace = 0;
 
         const mgl::Color url_color = get_theme().url_text_color;
         size_t url_range_index = 0;
@@ -792,6 +809,8 @@ namespace QuickMedia
                     clen = 1;
                 }
 
+                float hspace = hspace_latin;
+
                 // TODO: CJK monospace
                 if(is_symbol_codepoint(codepoint)) {
                     ff = FontLoader::get_font(FontLoader::FontType::SYMBOLS, characterSize);
@@ -802,6 +821,9 @@ namespace QuickMedia
                 } else if(monospace) {
                     ff = FontLoader::get_font(FontLoader::FontType::LATIN_MONOSPACE, characterSize);
                     vertices_index = FONT_INDEX_MONOSPACE;
+                    if(hspace_monospace == 0)
+                        hspace_monospace = ff->get_glyph(' ').advance + characterSpacing;
+                    hspace = hspace_monospace;
                 } else {
                     ff = latin_font;
                     vertices_index = FONT_INDEX_LATIN;
@@ -1003,6 +1025,9 @@ namespace QuickMedia
                 const VertexRef &vertex_ref = vertices_linear[textElement.vertex_ref_index];
                 const mgl::vec2f top_left_vertex_pos = vertices[vertex_ref.vertices_index][vertex_ref.index + 1].position;
                 textElement.pos = { (int)top_left_vertex_pos.x, (int)top_left_vertex_pos.y };
+                // Hide images by drawing them far away if we should cut them...
+                if(cut_lines && textElement.vertex_ref_index >= vertices_linear_index)
+                    textElement.pos.y = 9999.0f;
             }
         }
 
@@ -1024,10 +1049,22 @@ namespace QuickMedia
         }
 
         boundingBox.size.x = 0.0f;
+        boundingBox.size.y = 0.0f;
         for(VertexRef &vertex_ref : vertices_linear) {
             boundingBox.size.x = std::max(boundingBox.size.x, get_text_quad_right_side(vertex_ref));
+            //boundingBox.size.y = std::max(boundingBox.size.y, get_text_quad_bottom_side(vertex_ref));
         }
+
         boundingBox.size.y = num_lines * line_height;
+        //boundingBox.size.y = text_offset_y;
+
+        // TODO:
+
+        //if(vertices_linear.empty())
+        //    boundingBox.size.y = line_height;
+
+        //if(editable)
+        //    boundingBox.size.y = num_lines * line_height;
 
         // TODO: Clear |vertices| somehow even with editable text
         for(size_t i = 0; i < FONT_ARRAY_SIZE; ++i) {
@@ -1241,6 +1278,15 @@ namespace QuickMedia
     void Text::processEvent(mgl::Window &window, const mgl::Event &event)
     {
         if(!editable) return;
+
+        // TODO: Dont do this here! it's slow, but it's needed to process the change before the next event
+        updateGeometry();
+
+        if(dirtyCaret || caretMoveDirection != CaretMoveDirection::NONE) {
+            updateCaret();
+            dirtyCaret = false;
+            caretMoveDirection = CaretMoveDirection::NONE;
+        }
         
         if(caretIndex > (int)vertices_linear.size())
             caretIndex = vertices_linear.size();
@@ -1366,15 +1412,6 @@ namespace QuickMedia
             dirtyText = true;
             dirtyCaret = true;
         }
-
-        // TODO: Dont do this here! it's slow, but it's needed to process the change before the next event
-        updateGeometry();
-
-        if(dirtyCaret || caretMoveDirection != CaretMoveDirection::NONE) {
-            updateCaret();
-            dirtyCaret = false;
-            caretMoveDirection = CaretMoveDirection::NONE;
-        }
     }
 
     bool Text::draw(mgl::Window &target)