Add support for static image emoji

Emoji are downloaded asynchronously using remote program (curl).
Need to add support for converting [inline](url) chat message emoji
and gifs.

1 files changed, 67 insertions, 37 deletions

diff --git a/src/MessageBoard.cpp b/src/MessageBoard.cpp
index 2b9115a..acb7be1 100644
--- a/src/MessageBoard.cpp
+++ b/src/MessageBoard.cpp
@@ -84,7 +84,7 @@ namespace dchat
         }
     }
     
-    void MessageBoard::draw(sf::RenderWindow &window)
+    void MessageBoard::draw(sf::RenderWindow &window, Cache &cache)
     {
         sf::RenderTarget *renderTarget = nullptr;
         if(useStaticContentTexture)
@@ -99,56 +99,86 @@ namespace dchat
             dirty = true;
         }
         
-        if(dirty)
+        auto renderTargetSize = renderTarget->getSize();
+        
+        if(useStaticContentTexture)
         {
-            dirty = false;
-            auto renderTargetSize = renderTarget->getSize();
-            
-            if(useStaticContentTexture)
+            if(dirty)
                 staticContentTexture.clear(BACKGROUND_COLOR);
-            else
-            {
-                sf::RectangleShape background(sf::Vector2f(renderTargetSize.x, renderTargetSize.y));
-                background.setFillColor(BACKGROUND_COLOR);
-                renderTarget->draw(background);
-            }
-            
-            const sf::Font &usernameFont = ResourceCache::getFont("fonts/Roboto-Regular.ttf");
+        }
+        else
+        {
+            sf::RectangleShape background(sf::Vector2f(renderTargetSize.x, renderTargetSize.y));
+            background.setFillColor(BACKGROUND_COLOR);
+            renderTarget->draw(background);
+        }
+        
+        const sf::Font &usernameFont = ResourceCache::getFont("fonts/Roboto-Regular.ttf");
+        
+        sf::Vector2f position;
+        for(Message *message : messages)
+        {
+            sf::Text usernameText(message->user->getName(), usernameFont, MessagePartText::getFontSizeScaled() * 1.3f);
+            usernameText.setFillColor(sf::Color(15, 192, 252));
+            usernameText.setPosition(position);
+            if(dirty)
+                renderTarget->draw(usernameText);
+            position.y += usernameText.getCharacterSize() + USERNAME_PADDING_BOTTOM;
             
-            sf::Vector2f position;
-            for(Message *message : messages)
+            for(MessagePart *messagePart : message->getParts())
             {
-                sf::Text usernameText(message->user->getName(), usernameFont, MessagePartText::getFontSizeScaled() * 1.3f);
-                usernameText.setFillColor(sf::Color(15, 192, 252));
-                usernameText.setPosition(position);
-                renderTarget->draw(usernameText);
-                position.y += usernameText.getCharacterSize() + USERNAME_PADDING_BOTTOM;
-                
-                for(MessagePart *messagePart : message->getParts())
+                switch(messagePart->type)
                 {
-                    switch(messagePart->type)
+                    case MessagePart::Type::TEXT:
                     {
-                        case MessagePart::Type::TEXT:
-                        {
-                            MessagePartText *messagePartText = static_cast<MessagePartText*>(messagePart);
-                            messagePartText->text.setFillColor(sf::Color(240, 240, 240));
-                            messagePartText->text.setCharacterSize(MessagePartText::getFontSizeScaled());
-                            messagePartText->text.setPosition(floor(position.x), floor(position.y + MessagePart::getSizeScaled() * 0.5f - MessagePartText::getFontSizeScaled() * 0.5f));
+                        MessagePartText *messagePartText = static_cast<MessagePartText*>(messagePart);
+                        messagePartText->text.setFillColor(sf::Color(240, 240, 240));
+                        messagePartText->text.setCharacterSize(MessagePartText::getFontSizeScaled());
+                        messagePartText->text.setPosition(floor(position.x), floor(position.y + MessagePart::getSizeScaled() * 0.5f - MessagePartText::getFontSizeScaled() * 0.5f));
+                        if(dirty)
                             renderTarget->draw(messagePartText->text);
-                            position.x += messagePartText->text.getLocalBounds().width;
-                            break;
+                        position.x += messagePartText->text.getLocalBounds().width;
+                        break;
+                    }
+                    case MessagePart::Type::EMOJI:
+                    {
+                        MessagePartEmoji *messagePartEmoji = static_cast<MessagePartEmoji*>(messagePart);
+                        auto imageByUrlResult = cache.getImageByUrl(messagePartEmoji->url, 1024 * 512);
+                        position.x += 5.0f;
+                        if(imageByUrlResult.texture)
+                        {
+                            // TODO: Verify this doesn't cause lag
+                            messagePartEmoji->sprite.setTexture(*imageByUrlResult.texture, true);
+                            sf::Vector2f spriteSize(MessagePartEmoji::getHeightScaled(), MessagePartEmoji::getHeightScaled());
+                            messagePartEmoji->sprite.setScale(spriteSize.x / (float)imageByUrlResult.texture->getSize().x, spriteSize.y / (float)imageByUrlResult.texture->getSize().y);
+                            messagePartEmoji->sprite.setPosition(floor(position.x), floor(position.y + MessagePart::getSizeScaled() * 0.5f - MessagePartEmoji::getHeightScaled() * 0.5f));
+                            if(dirty)
+                                renderTarget->draw(messagePartEmoji->sprite);
+                        }
+                        else
+                        {
+                            // TODO: Replace this with a loading gif
+                            sf::RectangleShape emojiDownloadRect(sf::Vector2f(MessagePartEmoji::getHeightScaled(), MessagePartEmoji::getHeightScaled()));
+                            emojiDownloadRect.setPosition(floor(position.x), floor(position.y + MessagePart::getSizeScaled() * 0.5f - MessagePartEmoji::getHeightScaled() * 0.5f));
+                            emojiDownloadRect.setFillColor(sf::Color::White);
+                            if(dirty)
+                                renderTarget->draw(emojiDownloadRect);
                         }
+                        position.x += MessagePartEmoji::getHeightScaled() + 5.0f;
+                        break;
                     }
                 }
-                position.x = 0.0f;
-                position.y += MessagePart::getSizeScaled() + MESSAGE_PADDING_BOTTOM;
             }
-            
-            if(useStaticContentTexture)
-                staticContentTexture.display();
+            position.x = 0.0f;
+            position.y += MessagePart::getSizeScaled() + MESSAGE_PADDING_BOTTOM;
         }
         
         if(useStaticContentTexture)
+            staticContentTexture.display();
+        
+        dirty = false;
+        
+        if(useStaticContentTexture)
             window.draw(sf::Sprite(staticContentTexture.getTexture()));
         
         if(!selectingText) return;