use svg pre-rendered surfaces

meson.build

@@ -4,6 +4,8 @@ project(
   default_options : ['cpp_std=c++17']
 )
 
+add_project_arguments('-O3', language : 'cpp')
+
 raven_dep = dependency('raven')
 
 executable(

src/DirectoryView.cpp

@@ -16,7 +16,7 @@ void DirectoryView::set_current_path(std::filesystem::path path) {
         target()->clear_children();
         for (const auto &entry : std::filesystem::directory_iterator(m_current_path)) {
             std::string filename = entry.path().filename();
-            auto button = m_target->add<FileButton>(
+            auto button = target()->add<FileButton>(
                 entry.path().filename(),
                 entry.is_directory() ? FileButton::ButtonType::Directory : FileButton::ButtonType::File
             );
@@ -44,8 +44,8 @@ void DirectoryView::on_init() {
         set_current_path(go);
     };
 
-    m_target = make_target();
-    m_target->set_layout<Raven::DocumentLayout>(16.0);
+    make_target();
+    target()->set_layout<Raven::DocumentLayout>(16.0);
     set_did_init(true);
 }
 

src/DirectoryView.hpp

@@ -31,6 +31,5 @@ protected:
     void on_init();
 private:
     std::filesystem::path m_current_path { "/" };
-    std::shared_ptr<Raven::Widget> m_target;
     CheckpointStack<std::filesystem::path> m_checkpoint_stack {};
 };

src/FileButton.cpp

@@ -1,7 +1,8 @@
 #include "FileButton.hpp"
 #include "DirectoryView.hpp"
+#include "SvgUtil.hpp"
 
-Raven::GenericStyle FileButton::style = Raven::GenericStyle {
+Raven::GenericStyle FileButton::style = {
     pango_font_description_from_string("sans-serif"),
     Raven::black6,
     Raven::white3,
@@ -12,6 +13,9 @@ Raven::GenericStyle FileButton::style = Raven::GenericStyle {
     true
 };
 
+Cairo::RefPtr<Cairo::ImageSurface> FileButton::folder_icon = Raven::render_svg("/usr/share/icons/Papirus/64x64/places/folder-adwaita.svg", 0, 0, 64, 64);
+Cairo::RefPtr<Cairo::ImageSurface> FileButton::file_icon = Raven::render_svg("/usr/share/icons/Papirus/64x64/mimetypes/text-x-generic.svg", 0, 0, 64, 64);
+
 void FileButton::on_init() {
     rect().set_width(64);
     rect().set_height(88);
@@ -23,9 +27,9 @@ void FileButton::on_init() {
     layout->slot_pixel(24); // name (text)
 
     if (m_button_type == ButtonType::Directory) {
-        add<Raven::SvgWidget>("/usr/share/icons/Papirus/64x64/places/folder-adwaita.svg");
+        add<Raven::SvgWidget>(folder_icon);
     } else if (m_button_type == ButtonType::File) {
-        add<Raven::SvgWidget>("/usr/share/icons/Papirus/64x64/mimetypes/text-x-generic.svg");
+        add<Raven::SvgWidget>(file_icon);
     }
     auto label = add<Raven::Label>(m_name, Raven::PaintTextAlign::Center);
     label->rect().set_max_width(rect().width());

src/FileButton.hpp

@@ -2,6 +2,8 @@
 
 #include <memory>
 #include <string>
+#include "cairomm/refptr.h"
+#include "cairomm/surface.h"
 #include "raven/Widget.hpp"
 #include "raven/BoxLayout.hpp"
 #include "raven/Label.hpp"
@@ -12,6 +14,8 @@
 class FileButton : public Raven::Widget {
 public:
     static Raven::GenericStyle style;
+    static Cairo::RefPtr<Cairo::ImageSurface> folder_icon;
+    static Cairo::RefPtr<Cairo::ImageSurface> file_icon;
 
     enum class ButtonType {
         Directory,