basic channel mentions count indicator

src/components/channels.cpp

@@ -176,6 +176,14 @@ ChannelList::ChannelList()
     discord.signal_message_ack().connect(sigc::mem_fun(*this, &ChannelList::OnMessageAck));
 }
 
+void ChannelList::UsePanedHack(Gtk::Paned& paned) {
+    paned.property_position().signal_changed().connect(sigc::mem_fun(*this, &ChannelList::OnPanedPositionChanged));
+}
+
+void ChannelList::OnPanedPositionChanged() {
+    m_view.queue_draw();
+}
+
 void ChannelList::UpdateListing() {
     m_updating_listing = true;
 

src/components/channels.hpp

@@ -25,7 +25,11 @@ public:
     void UseExpansionState(const ExpansionStateRoot &state);
     ExpansionStateRoot GetExpansionState() const;
 
+    void UsePanedHack(Gtk::Paned &paned);
+
 protected:
+    void OnPanedPositionChanged();
+
     void UpdateNewGuild(const GuildData &guild);
     void UpdateRemoveGuild(Snowflake id);
     void UpdateRemoveChannel(Snowflake id);

src/components/channelscellrenderer.cpp

@@ -240,7 +240,7 @@ void CellRendererChannels::render_vfunc_guild(const Cairo::RefPtr<Cairo::Context
         cr->fill();
     }
 
-    UnreadRenderer::RenderUnreadOnGuild(m_property_id.get_value(), cr, background_area, cell_area);
+    UnreadRenderer::RenderUnreadOnGuild(m_property_id.get_value(), widget, cr, background_area, cell_area);
 }
 
 // category
@@ -337,7 +337,7 @@ void CellRendererChannels::render_vfunc_channel(const Cairo::RefPtr<Cairo::Conte
     // so unset it
     m_renderer_text.property_foreground_set() = false;
 
-    UnreadRenderer::RenderUnreadOnChannel(m_property_id.get_value(), cr, background_area, cell_area);
+    UnreadRenderer::RenderUnreadOnChannel(m_property_id.get_value(), widget, cr, background_area, cell_area);
 }
 
 // thread

src/components/unreadrenderer.cpp

@@ -1,7 +1,7 @@
 #include "unreadrenderer.hpp"
 #include "abaddon.hpp"
 
-void UnreadRenderer::RenderUnreadOnGuild(Snowflake id, const Cairo::RefPtr<Cairo::Context> &cr, const Gdk::Rectangle &background_area, const Gdk::Rectangle &cell_area) {
+void UnreadRenderer::RenderUnreadOnGuild(Snowflake id, Gtk::Widget &widget, const Cairo::RefPtr<Cairo::Context> &cr, const Gdk::Rectangle &background_area, const Gdk::Rectangle &cell_area) {
     // maybe have DiscordClient track this?
     auto &discord = Abaddon::Get().GetDiscordClient();
     const auto channels = discord.GetChannelsInGuild(id);
@@ -23,15 +23,38 @@ void UnreadRenderer::RenderUnreadOnGuild(Snowflake id, const Cairo::RefPtr<Cairo
     cr->fill();
 }
 
-void UnreadRenderer::RenderUnreadOnChannel(Snowflake id, const Cairo::RefPtr<Cairo::Context> &cr, const Gdk::Rectangle &background_area, const Gdk::Rectangle &cell_area) {
+void UnreadRenderer::RenderUnreadOnChannel(Snowflake id, Gtk::Widget &widget, const Cairo::RefPtr<Cairo::Context> &cr, const Gdk::Rectangle &background_area, const Gdk::Rectangle &cell_area) {
     const auto state = Abaddon::Get().GetDiscordClient().GetUnreadStateForChannel(id);
-    if (state >= 0) {
-        cr->set_source_rgb(1.0, 1.0, 1.0);
-        const auto x = background_area.get_x();
-        const auto y = background_area.get_y();
-        const auto w = background_area.get_width();
-        const auto h = background_area.get_height();
-        cr->rectangle(x, y, 3, h);
-        cr->fill();
+    if (state < 0) return;
+    cr->set_source_rgb(1.0, 1.0, 1.0);
+    const auto x = background_area.get_x();
+    const auto y = background_area.get_y();
+    const auto w = background_area.get_width();
+    const auto h = background_area.get_height();
+    cr->rectangle(x, y, 3, h);
+    cr->fill();
+
+    if (state < 1) return;
+    auto *paned = static_cast<Gtk::Paned *>(widget.get_ancestor(Gtk::Paned::get_type()));
+    const auto edge = paned->get_position();
+
+    // surely this shouldnt be run every draw?
+    // https://developer-old.gnome.org/gtkmm-tutorial/3.22/sec-drawing-text.html.en
+
+    Pango::FontDescription font;
+    font.set_family("sans 14");
+    font.set_weight(Pango::WEIGHT_BOLD);
+
+    auto layout = widget.create_pango_layout(std::to_string(state));
+    layout->set_font_description(font);
+    layout->set_alignment(Pango::ALIGN_RIGHT);
+
+    int width, height;
+    layout->get_pixel_size(width, height);
+    {
+        const auto x = cell_area.get_x() + std::min(edge, cell_area.get_width()) - 14 - 2;
+        const auto y = cell_area.get_y() + cell_area.get_height() / 2.0 - height / 2.0;
+        cr->move_to(x, y);
+        layout->show_in_cairo_context(cr);
     }
 }

src/components/unreadrenderer.hpp

@@ -1,10 +1,11 @@
 #pragma once
 #include <cairomm/context.h>
 #include <gdkmm/rectangle.h>
+#include <gtkmm/widget.h>
 #include "discord/snowflake.hpp"
 
 class UnreadRenderer {
 public:
-    static void RenderUnreadOnGuild(Snowflake id, const Cairo::RefPtr<Cairo::Context> &cr, const Gdk::Rectangle &background_area, const Gdk::Rectangle &cell_area);
-    static void RenderUnreadOnChannel(Snowflake id, const Cairo::RefPtr<Cairo::Context> &cr, const Gdk::Rectangle &background_area, const Gdk::Rectangle &cell_area);
+    static void RenderUnreadOnGuild(Snowflake id, Gtk::Widget &widget, const Cairo::RefPtr<Cairo::Context> &cr, const Gdk::Rectangle &background_area, const Gdk::Rectangle &cell_area);
+    static void RenderUnreadOnChannel(Snowflake id, Gtk::Widget &widget, const Cairo::RefPtr<Cairo::Context> &cr, const Gdk::Rectangle &background_area, const Gdk::Rectangle &cell_area);
 };

src/discord/discord.cpp

@@ -1467,9 +1467,10 @@ void DiscordClient::HandleGatewayMessageCreate(const GatewayMessage &msg) {
     if (data.GuildID.has_value())
         AddUserToGuild(data.Author.ID, *data.GuildID);
     m_last_message_id[data.ChannelID] = data.ID;
-    const auto iter = m_unread.find(data.ChannelID);
-    if (iter == m_unread.end())
-        m_unread[data.ChannelID] = 0;
+    m_unread[data.ChannelID];
+    if (data.DoesMention(GetUserData().ID)) {
+        m_unread[data.ChannelID]++;
+    }
     m_signal_message_create.emit(data);
 }
 

src/discord/message.cpp

@@ -263,3 +263,9 @@ bool Message::IsDeleted() const {
 bool Message::IsEdited() const {
     return m_edited;
 }
+
+bool Message::DoesMention(Snowflake id) const noexcept {
+    return std::any_of(Mentions.begin(), Mentions.end(), [id](const UserData &user) {
+        return user.ID == id;
+    });
+}

src/discord/message.hpp

@@ -212,6 +212,8 @@ struct Message {
     bool IsDeleted() const;
     bool IsEdited() const;
 
+    bool DoesMention(Snowflake id) const noexcept;
+
 private:
     bool m_deleted = false;
     bool m_edited = false;

src/windows/mainwindow.cpp

@@ -153,6 +153,7 @@ MainWindow::MainWindow()
     m_chan_content_paned.set_position(200);
     m_chan_content_paned.show();
     m_content_box.add(m_chan_content_paned);
+    m_channel_list.UsePanedHack(m_chan_content_paned);
 
     m_content_members_paned.pack1(m_content_stack);
     m_content_members_paned.pack2(*member_list);