added another level of unneeded abstraction

chatterino.pro

@@ -53,7 +53,8 @@ SOURCES += main.cpp\
     widgets/settingsdialogtab.cpp \
     widgets/textinputdialog.cpp \
     windows.cpp \
-    logging.cpp
+    logging.cpp \
+    messages/messageref.cpp
 
 HEADERS  += account.h \
     asyncexec.h \
@@ -97,7 +98,8 @@ HEADERS  += account.h \
     settingssnapshot.h \
     logging.h \
     messages/limitedqueue.h \
-    messages/limitedqueuesnapshot.h
+    messages/limitedqueuesnapshot.h \
+    messages/messageref.h
 
 PRECOMPILED_HEADER =
 

messages/limitedqueue.h

@@ -24,7 +24,18 @@ public:
         , limit(limit)
         , buffer(buffer)
     {
-        ;
+    }
+
+    void
+    clear()
+    {
+        std::lock_guard<std::mutex> lock(this->mutex);
+
+        this->vector = new std::vector<T>(this->limit + this->buffer);
+        this->vectorPtr = std::shared_ptr<std::vector<T>>(this->vector);
+
+        this->offset = 0;
+        this->length = 0;
     }
 
     // return true if an item was deleted

messages/message.cpp

@@ -14,11 +14,6 @@
 #include <list>
 #include <tuple>
 
-#define MARGIN_LEFT 8
-#define MARGIN_RIGHT 8
-#define MARGIN_TOP 8
-#define MARGIN_BOTTOM 8
-
 namespace chatterino {
 namespace messages {
 
@@ -403,187 +398,6 @@ Message::Message(const IrcPrivateMessage &ircMessage, Channel &channel,
     //    }
 }
 
-bool
-Message::layout(int width, bool enableEmoteMargins)
-{
-    auto &settings = Settings::getInstance();
-
-    width = width - (width % 2);
-
-    int mediumTextLineHeight = Fonts::getFontMetrics(Fonts::Medium).height();
-    int spaceWidth = 4;
-
-    bool redraw = width != this->currentLayoutWidth || this->relayoutRequested;
-
-    bool recalculateImages = this->emoteGeneration != Emotes::getGeneration();
-    bool recalculateText = this->fontGeneration != Fonts::getGeneration();
-
-    qreal emoteScale = settings.emoteScale.get();
-    bool scaleEmotesByLineHeight = settings.scaleEmotesByLineHeight.get();
-
-    if (recalculateImages || recalculateText) {
-        this->emoteGeneration = Emotes::getGeneration();
-        this->fontGeneration = Fonts::getGeneration();
-
-        redraw = true;
-
-        for (auto &word : this->words) {
-            if (word.isImage()) {
-                if (recalculateImages) {
-                    auto &image = word.getImage();
-
-                    qreal w = image.getWidth();
-                    qreal h = image.getHeight();
-
-                    if (scaleEmotesByLineHeight) {
-                        word.setSize(w * mediumTextLineHeight / h * emoteScale,
-                                     mediumTextLineHeight * emoteScale);
-                    } else {
-                        word.setSize(w * image.getScale() * emoteScale,
-                                     h * image.getScale() * emoteScale);
-                    }
-                }
-            } else {
-                if (recalculateText) {
-                    QFontMetrics &metrics = word.getFontMetrics();
-                    word.setSize(metrics.width(word.getText()),
-                                 metrics.height());
-                }
-            }
-        }
-    }
-
-    if (!redraw) {
-        return false;
-    }
-
-    int x = MARGIN_LEFT;
-    int y = MARGIN_TOP;
-
-    int right = width - MARGIN_RIGHT - MARGIN_LEFT;
-
-    int lineStart = 0;
-    int lineHeight = 0;
-    bool first = true;
-
-    this->wordParts.clear();
-
-    uint32_t flags = Settings::getInstance().getWordTypeMask();
-
-    for (auto it = this->words.begin(); it != this->words.end(); ++it) {
-        Word &word = *it;
-
-        if ((word.getType() & flags) == Word::None) {
-            continue;
-        }
-
-        int xOffset = 0, yOffset = 0;
-
-        if (enableEmoteMargins) {
-            if (word.isImage() && word.getImage().getIsHat()) {
-                xOffset = -word.getWidth() + 2;
-            } else {
-                xOffset = word.getXOffset();
-                yOffset = word.getYOffset();
-            }
-        }
-
-        // word wrapping
-        if (word.isText() && word.getWidth() + MARGIN_LEFT > right) {
-            this->alignWordParts(lineStart, lineHeight);
-
-            y += lineHeight;
-
-            const QString &text = word.getText();
-
-            int start = 0;
-            QFontMetrics &metrics = word.getFontMetrics();
-
-            int width = 0;
-
-            std::vector<short> &charWidths = word.getCharacterWidthCache();
-
-            if (charWidths.size() == 0) {
-                for (int i = 0; i < text.length(); i++) {
-                    charWidths.push_back(metrics.charWidth(text, i));
-                }
-            }
-
-            for (int i = 2; i <= text.length(); i++) {
-                if ((width = width + charWidths[i - 1]) + MARGIN_LEFT > right) {
-                    QString mid = text.mid(start, i - start - 1);
-
-                    this->wordParts.push_back(WordPart(word, MARGIN_LEFT, y,
-                                                       width, word.getHeight(),
-                                                       mid, mid));
-
-                    y += metrics.height();
-
-                    start = i - 1;
-
-                    width = 0;
-                }
-            }
-
-            QString mid(text.mid(start));
-            width = metrics.width(mid);
-
-            this->wordParts.push_back(WordPart(word, MARGIN_LEFT,
-                                               y - word.getHeight(), width,
-                                               word.getHeight(), mid, mid));
-            x = width + MARGIN_LEFT + spaceWidth;
-
-            lineHeight = word.getHeight();
-
-            lineStart = this->wordParts.size() - 1;
-
-            first = false;
-        } else if (first || x + word.getWidth() + xOffset <= right) {
-            // fits in the line
-            this->wordParts.push_back(
-                WordPart(word, x, y - word.getHeight(), word.getCopyText()));
-
-            x += word.getWidth() + xOffset;
-            x += spaceWidth;
-
-            lineHeight = std::max(word.getHeight(), lineHeight);
-
-            first = false;
-        } else {
-            // doesn't fit in the line
-            this->alignWordParts(lineStart, lineHeight);
-
-            y += lineHeight;
-
-            this->wordParts.push_back(WordPart(
-                word, MARGIN_LEFT, y - word.getHeight(), word.getCopyText()));
-
-            lineStart = this->wordParts.size() - 1;
-
-            lineHeight = word.getHeight();
-
-            x = word.getWidth() + MARGIN_LEFT;
-            x += spaceWidth;
-        }
-    }
-
-    this->alignWordParts(lineStart, lineHeight);
-
-    this->height = y + lineHeight;
-
-    return true;
-}
-
-void
-Message::alignWordParts(int lineStart, int lineHeight)
-{
-    for (size_t i = lineStart; i < this->wordParts.size(); i++) {
-        WordPart &wordPart2 = this->wordParts.at(i);
-
-        wordPart2.setY(wordPart2.getY() + lineHeight);
-    }
-}
-
 QString
 Message::matchLink(const QString &string)
 {

messages/message.h

@@ -54,18 +54,12 @@ public:
         return displayName;
     }
 
-    const std::vector<Word> &
-    getWords() const
+    std::vector<Word> &
+    getWords()
     {
         return words;
     }
 
-    const std::vector<WordPart> &
-    getWordParts() const
-    {
-        return wordParts;
-    }
-
     bool
     getDisabled() const
     {
@@ -78,20 +72,6 @@ public:
         return id;
     }
 
-    int
-    getHeight() const
-    {
-        return height;
-    }
-
-    bool layout(int width, bool enableEmoteMargins = true);
-
-    void
-    requestRelayout()
-    {
-        relayoutRequested = true;
-    }
-
 private:
     static LazyLoadedImage *badgeStaff;
     static LazyLoadedImage *badgeAdmin;
@@ -113,17 +93,7 @@ private:
     QString displayName = "";
     QString id = "";
 
-    int height = 0;
-
     std::vector<Word> words;
-    std::vector<WordPart> wordParts;
-
-    long currentLayoutWidth = -1;
-    bool relayoutRequested = true;
-    int fontGeneration = -1;
-    int emoteGeneration = -1;
-
-    void alignWordParts(int lineStart, int lineHeight);
 
     static QString matchLink(const QString &string);
 

messages/messageref.cpp

@@ -0,0 +1,202 @@
+#include "messageref.h"
+#include "emotes.h"
+#include "settings.h"
+
+#define MARGIN_LEFT 8
+#define MARGIN_RIGHT 8
+#define MARGIN_TOP 8
+#define MARGIN_BOTTOM 8
+
+namespace chatterino {
+namespace messages {
+
+MessageRef::MessageRef(std::shared_ptr<Message> message)
+    : message(message.get())
+    , messagePtr(message)
+    , wordParts()
+{
+}
+
+bool
+MessageRef::layout(int width, bool enableEmoteMargins)
+{
+    auto &settings = Settings::getInstance();
+
+    width = width - (width % 2);
+
+    int mediumTextLineHeight = Fonts::getFontMetrics(Fonts::Medium).height();
+    int spaceWidth = 4;
+
+    bool redraw = width != this->currentLayoutWidth || this->relayoutRequested;
+
+    bool recalculateImages = this->emoteGeneration != Emotes::getGeneration();
+    bool recalculateText = this->fontGeneration != Fonts::getGeneration();
+
+    qreal emoteScale = settings.emoteScale.get();
+    bool scaleEmotesByLineHeight = settings.scaleEmotesByLineHeight.get();
+
+    if (recalculateImages || recalculateText) {
+        this->emoteGeneration = Emotes::getGeneration();
+        this->fontGeneration = Fonts::getGeneration();
+
+        redraw = true;
+
+        for (auto &word : this->message->getWords()) {
+            if (word.isImage()) {
+                if (recalculateImages) {
+                    auto &image = word.getImage();
+
+                    qreal w = image.getWidth();
+                    qreal h = image.getHeight();
+
+                    if (scaleEmotesByLineHeight) {
+                        word.setSize(w * mediumTextLineHeight / h * emoteScale,
+                                     mediumTextLineHeight * emoteScale);
+                    } else {
+                        word.setSize(w * image.getScale() * emoteScale,
+                                     h * image.getScale() * emoteScale);
+                    }
+                }
+            } else {
+                if (recalculateText) {
+                    QFontMetrics &metrics = word.getFontMetrics();
+                    word.setSize(metrics.width(word.getText()),
+                                 metrics.height());
+                }
+            }
+        }
+    }
+
+    if (!redraw) {
+        return false;
+    }
+
+    int x = MARGIN_LEFT;
+    int y = MARGIN_TOP;
+
+    int right = width - MARGIN_RIGHT - MARGIN_LEFT;
+
+    int lineStart = 0;
+    int lineHeight = 0;
+    bool first = true;
+
+    this->wordParts.clear();
+
+    uint32_t flags = Settings::getInstance().getWordTypeMask();
+
+    for (auto it = this->message->getWords().begin();
+         it != this->message->getWords().end(); ++it) {
+        Word &word = *it;
+
+        if ((word.getType() & flags) == Word::None) {
+            continue;
+        }
+
+        int xOffset = 0, yOffset = 0;
+
+        if (enableEmoteMargins) {
+            if (word.isImage() && word.getImage().getIsHat()) {
+                xOffset = -word.getWidth() + 2;
+            } else {
+                xOffset = word.getXOffset();
+                yOffset = word.getYOffset();
+            }
+        }
+
+        // word wrapping
+        if (word.isText() && word.getWidth() + MARGIN_LEFT > right) {
+            this->alignWordParts(lineStart, lineHeight);
+
+            y += lineHeight;
+
+            const QString &text = word.getText();
+
+            int start = 0;
+            QFontMetrics &metrics = word.getFontMetrics();
+
+            int width = 0;
+
+            std::vector<short> &charWidths = word.getCharacterWidthCache();
+
+            if (charWidths.size() == 0) {
+                for (int i = 0; i < text.length(); i++) {
+                    charWidths.push_back(metrics.charWidth(text, i));
+                }
+            }
+
+            for (int i = 2; i <= text.length(); i++) {
+                if ((width = width + charWidths[i - 1]) + MARGIN_LEFT > right) {
+                    QString mid = text.mid(start, i - start - 1);
+
+                    this->wordParts.push_back(WordPart(word, MARGIN_LEFT, y,
+                                                       width, word.getHeight(),
+                                                       mid, mid));
+
+                    y += metrics.height();
+
+                    start = i - 1;
+
+                    width = 0;
+                }
+            }
+
+            QString mid(text.mid(start));
+            width = metrics.width(mid);
+
+            this->wordParts.push_back(WordPart(word, MARGIN_LEFT,
+                                               y - word.getHeight(), width,
+                                               word.getHeight(), mid, mid));
+            x = width + MARGIN_LEFT + spaceWidth;
+
+            lineHeight = word.getHeight();
+
+            lineStart = this->wordParts.size() - 1;
+
+            first = false;
+        } else if (first || x + word.getWidth() + xOffset <= right) {
+            // fits in the line
+            this->wordParts.push_back(
+                WordPart(word, x, y - word.getHeight(), word.getCopyText()));
+
+            x += word.getWidth() + xOffset;
+            x += spaceWidth;
+
+            lineHeight = std::max(word.getHeight(), lineHeight);
+
+            first = false;
+        } else {
+            // doesn't fit in the line
+            this->alignWordParts(lineStart, lineHeight);
+
+            y += lineHeight;
+
+            this->wordParts.push_back(WordPart(
+                word, MARGIN_LEFT, y - word.getHeight(), word.getCopyText()));
+
+            lineStart = this->wordParts.size() - 1;
+
+            lineHeight = word.getHeight();
+
+            x = word.getWidth() + MARGIN_LEFT;
+            x += spaceWidth;
+        }
+    }
+
+    this->alignWordParts(lineStart, lineHeight);
+
+    this->height = y + lineHeight;
+
+    return true;
+}
+
+void
+MessageRef::alignWordParts(int lineStart, int lineHeight)
+{
+    for (size_t i = lineStart; i < this->wordParts.size(); i++) {
+        WordPart &wordPart2 = this->wordParts.at(i);
+
+        wordPart2.setY(wordPart2.getY() + lineHeight);
+    }
+}
+}
+}

messages/messageref.h

@@ -0,0 +1,59 @@
+#ifndef MESSAGEREF_H
+#define MESSAGEREF_H
+
+#include <memory>
+#include "messages/message.h"
+
+namespace chatterino {
+namespace messages {
+
+class MessageRef
+{
+public:
+    MessageRef(std::shared_ptr<Message> message);
+
+    Message *
+    getMessage()
+    {
+        return this->message;
+    }
+
+    int
+    getHeight() const
+    {
+        return height;
+    }
+
+    bool layout(int width, bool enableEmoteMargins = true);
+
+    void
+    requestRelayout()
+    {
+        relayoutRequested = true;
+    }
+
+    const std::vector<WordPart> &
+    getWordParts() const
+    {
+        return wordParts;
+    }
+
+private:
+    Message *message;
+    std::shared_ptr<Message> messagePtr;
+
+    std::vector<messages::WordPart> wordParts;
+
+    int height = 0;
+
+    int currentLayoutWidth = -1;
+    bool relayoutRequested = true;
+    int fontGeneration = -1;
+    int emoteGeneration = -1;
+
+    void alignWordParts(int lineStart, int lineHeight);
+};
+}
+}
+
+#endif  // MESSAGEREF_H

widgets/chatwidget.cpp

@@ -8,12 +8,14 @@
 #include <QFontDatabase>
 #include <QPainter>
 #include <QVBoxLayout>
+#include <boost/signals2.hpp>
 
 namespace chatterino {
 namespace widgets {
 
 ChatWidget::ChatWidget(QWidget *parent)
     : QWidget(parent)
+    , messages()
     , channel(Channels::getEmpty())
     , channelName(QString())
     , vbox(this)
@@ -52,12 +54,35 @@ ChatWidget::setChannelName(const QString &name)
 
     if (!this->channelName.isEmpty()) {
         Channels::removeChannel(this->channelName);
+
+        messageAppendedConnection.disconnect();
+        messageRemovedConnection.disconnect();
     }
 
+    messages.clear();
+
     if (channel.isEmpty()) {
         this->channel = NULL;
+
     } else {
         this->channel = Channels::addChannel(channel);
+
+        messageAppendedConnection =
+            this->channel.get()->messageAppended.connect([this](
+                std::shared_ptr<messages::Message> &message) {
+
+                std::shared_ptr<messages::MessageRef> deleted;
+
+                auto messageRef = new messages::MessageRef(message);
+
+                this->messages.appendItem(
+                    std::shared_ptr<messages::MessageRef>(messageRef), deleted);
+
+            });
+
+        messageRemovedConnection =
+            this->channel.get()->messageRemovedFromStart.connect(
+                [this](std::shared_ptr<messages::Message> &message) {});
     }
 
     this->view.layoutMessages();

widgets/chatwidget.h

@@ -2,7 +2,10 @@
 #define CHATWIDGET_H
 
 #include "channel.h"
+#include "messages/limitedqueuesnapshot.h"
+#include "messages/messageref.h"
 #include "messages/word.h"
+#include "messages/wordpart.h"
 #include "widgets/chatwidgetheader.h"
 #include "widgets/chatwidgetinput.h"
 #include "widgets/chatwidgetview.h"
@@ -11,6 +14,7 @@
 #include <QVBoxLayout>
 #include <QWidget>
 #include <boost/property_tree/ptree.hpp>
+#include <boost/signals2/connection.hpp>
 
 namespace chatterino {
 namespace widgets {
@@ -45,10 +49,18 @@ public:
 
     void showChangeChannelPopup();
 
+    messages::LimitedQueueSnapshot<std::shared_ptr<messages::MessageRef>>
+    getMessagesSnapshot()
+    {
+        return messages.getSnapshot();
+    }
+
 protected:
     void paintEvent(QPaintEvent *) Q_DECL_OVERRIDE;
 
 private:
+    messages::LimitedQueue<std::shared_ptr<messages::MessageRef>> messages;
+
     std::shared_ptr<Channel> channel;
     QString channelName;
 
@@ -58,6 +70,9 @@ private:
     ChatWidgetView view;
     ChatWidgetInput input;
 
+    boost::signals2::connection messageAppendedConnection;
+    boost::signals2::connection messageRemovedConnection;
+
 public:
     void load(const boost::property_tree::ptree &tree);
     boost::property_tree::ptree save();

widgets/chatwidgetview.cpp

@@ -37,17 +37,9 @@ ChatWidgetView::~ChatWidgetView()
 bool
 ChatWidgetView::layoutMessages()
 {
-    auto c = this->chatWidget->getChannel();
-
-    if (c == NULL) {
-        this->scrollbar.hide();
-
-        return false;
-    }
-
     bool showScrollbar = false;
 
-    auto messages = c->getMessageSnapshot();
+    auto messages = chatWidget->getMessagesSnapshot();
 
     bool redraw = false;
 
@@ -99,7 +91,7 @@ ChatWidgetView::paintEvent(QPaintEvent *)
 
     painter.setRenderHint(QPainter::SmoothPixmapTransform);
 
-    auto c = this->chatWidget->getChannel();
+    //    auto c = this->chatWidget->getChannel();
 
     QColor color;
 
@@ -137,10 +129,12 @@ ChatWidgetView::paintEvent(QPaintEvent *)
 
     painter.fillRect(QRect(0, 9, 500, 2), QColor(0, 0, 0));*/
 
-    if (c == NULL)
-        return;
+    //    if (c == NULL)
+    //        return;
 
-    auto messages = c->getMessageSnapshot();
+    //    auto messages = c->getMessageSnapshot();
+
+    auto messages = chatWidget->getMessagesSnapshot();
 
     int start = this->scrollbar.getCurrentValue();
 
@@ -152,9 +146,9 @@ ChatWidgetView::paintEvent(QPaintEvent *)
               (fmod(this->scrollbar.getCurrentValue(), 1)));
 
     for (int i = start; i < messages.getLength(); ++i) {
-        messages::Message *message = messages[i].get();
+        messages::MessageRef *messageRef = messages[i].get();
 
-        for (messages::WordPart const &wordPart : message->getWordParts()) {
+        for (messages::WordPart const &wordPart : messageRef->getWordParts()) {
             painter.setPen(QColor(255, 0, 0));
             painter.drawRect(wordPart.getX(), wordPart.getY() + y,
                              wordPart.getWidth(), wordPart.getHeight());
@@ -188,7 +182,7 @@ ChatWidgetView::paintEvent(QPaintEvent *)
             }
         }
 
-        y += message->getHeight();
+        y += messageRef->getHeight();
 
         if (y > height()) {
             break;

widgets/chatwidgetview.h

@@ -2,6 +2,7 @@
 #define CHATVIEW_H
 
 #include "channel.h"
+#include "messages/messageref.h"
 #include "messages/word.h"
 #include "widgets/scrollbar.h"