From 5540361f94f7613defc3736e74557a047cb87494 Mon Sep 17 00:00:00 2001
From: NaiJi <naijiworld@protonmail.com>
Date: Sat, 21 Aug 2021 15:29:58 +0300
Subject: [PATCH] Add resource holder

---
 include/gui/state.h                           |  1 +
 include/tools/resourceholder.h                | 42 +++++++++++++++++++
 ...calculator.cpp => bpmcalculatorwidget.cpp} | 16 +++----
 ...{bpmcalculator.h => bpmcalculatorwidget.h} |  4 +-
 4 files changed, 53 insertions(+), 10 deletions(-)
 create mode 100644 include/tools/resourceholder.h
 rename src/gui/widgets/{bpmcalculator.cpp => bpmcalculatorwidget.cpp} (73%)
 rename src/gui/widgets/{bpmcalculator.h => bpmcalculatorwidget.h} (90%)

diff --git a/include/gui/state.h b/include/gui/state.h
index ddf9ac6..6652ab8 100644
--- a/include/gui/state.h
+++ b/include/gui/state.h
@@ -2,6 +2,7 @@
 
 #include <stack>
 #include <memory>
+#include <functional>
 #include <SFML/Window/Event.hpp>
 
 class GUIState
diff --git a/include/tools/resourceholder.h b/include/tools/resourceholder.h
new file mode 100644
index 0000000..5c057cf
--- /dev/null
+++ b/include/tools/resourceholder.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <memory>
+#include <map>
+
+namespace sf { class Texture; class Font; }
+
+template <typename Resource, typename Id>
+class ResourceHolder
+{
+public:
+    bool load(Id id, const std::string& filename)
+    {
+        auto resource = std::make_unique<Resource>();
+        if (!resource->loadFromFile(filename))
+            return false;
+
+        _resources[id] = std::move(resource);
+
+        return true;
+    }
+
+    Resource& get(Id id) const
+    {
+        const auto found = _resources.find(id);
+        return *found->second;
+    }
+
+private:
+    std::map<Id, std::unique_ptr<Resource>> _resources;
+};
+
+namespace Fonts
+{
+    enum class Id
+    {
+        GUI
+    };
+}
+
+using FontHolder = ResourceHolder<sf::Font, Fonts::Id>;
+
diff --git a/src/gui/widgets/bpmcalculator.cpp b/src/gui/widgets/bpmcalculatorwidget.cpp
similarity index 73%
rename from src/gui/widgets/bpmcalculator.cpp
rename to src/gui/widgets/bpmcalculatorwidget.cpp
index 0129209..a37c444 100644
--- a/src/gui/widgets/bpmcalculator.cpp
+++ b/src/gui/widgets/bpmcalculatorwidget.cpp
@@ -1,13 +1,13 @@
-#include "bpmcalculator.h"
+#include "bpmcalculatorwidget.h"
 
-BPMCalculatorWindow::BPMCalculatorWindow() :
+BPMCalculatorWidget::BPMCalculatorWidget() :
     _pressed(false)
 {
     _button_text.setFillColor(sf::Color::Black);
     _button_content.setFillColor(sf::Color::White);
 }
 
-void BPMCalculatorWindow::input(const sf::Event& event)
+void BPMCalculatorWidget::input(const sf::Event& event)
 {
     switch (event.type)
     {
@@ -36,12 +36,12 @@ void BPMCalculatorWindow::input(const sf::Event& event)
     Widget::input(event);
 }
 
-void BPMCalculatorWindow::update()
+void BPMCalculatorWidget::update()
 {
     Widget::update();
 }
 
-void BPMCalculatorWindow::draw(sf::RenderTarget& target, sf::RenderStates states) const
+void BPMCalculatorWidget::draw(sf::RenderTarget& target, sf::RenderStates states) const
 {
     target.draw(_button_content, states);
     target.draw(_button_text, states);
@@ -49,18 +49,18 @@ void BPMCalculatorWindow::draw(sf::RenderTarget& target, sf::RenderStates states
     Widget::draw(target, states);
 }
 
-void BPMCalculatorWindow::setRect(const sf::FloatRect& rect)
+void BPMCalculatorWidget::setRect(const sf::FloatRect& rect)
 {
     _button_content.setPosition(rect.left, rect.top);
     _button_content.setSize({rect.width, rect.height});
 }
 
-void BPMCalculatorWindow::setPosition(const sf::Vector2f &position)
+void BPMCalculatorWidget::setPosition(const sf::Vector2f &position)
 {
     _button_content.setPosition(position);
 }
 
-bool BPMCalculatorWindow::isUnderMouse(int mouse_x, int mouse_y) const
+bool BPMCalculatorWidget::isUnderMouse(int mouse_x, int mouse_y) const
 {
     return _button_content.getGlobalBounds().contains(mouse_x, mouse_y);
 }
diff --git a/src/gui/widgets/bpmcalculator.h b/src/gui/widgets/bpmcalculatorwidget.h
similarity index 90%
rename from src/gui/widgets/bpmcalculator.h
rename to src/gui/widgets/bpmcalculatorwidget.h
index 1c44ed8..b5b4aae 100644
--- a/src/gui/widgets/bpmcalculator.h
+++ b/src/gui/widgets/bpmcalculatorwidget.h
@@ -5,10 +5,10 @@
 #include <SFML/Graphics/RectangleShape.hpp>
 #include <SFML/Graphics/Text.hpp>
 
-class BPMCalculatorWindow : public Widget
+class BPMCalculatorWidget : public Widget
 {
 public:
-    BPMCalculatorWindow();
+    BPMCalculatorWidget();
 
     virtual void input(const sf::Event& event) override;
     virtual void update() override;