Merge branch 'master' of https://github.com/lonkaars/crepe into wouter/button-improvement

7 files changed, 173 insertions, 4 deletions

diff --git a/src/crepe/facade/CMakeLists.txt b/src/crepe/facade/CMakeLists.txt
index 0598e16..243ae46 100644
--- a/src/crepe/facade/CMakeLists.txt
+++ b/src/crepe/facade/CMakeLists.txt
@@ -4,6 +4,8 @@ target_sources(crepe PUBLIC
 	SoundContext.cpp
 	SDLContext.cpp
 	DB.cpp
+	FontFacade.cpp
+	Font.cpp
 )
 
 target_sources(crepe PUBLIC FILE_SET HEADERS FILES
@@ -12,5 +14,7 @@ target_sources(crepe PUBLIC FILE_SET HEADERS FILES
 	SoundContext.h
 	SDLContext.h
 	DB.h
+	FontFacade.h
+	Font.h
 )
 
diff --git a/src/crepe/facade/Font.cpp b/src/crepe/facade/Font.cpp
new file mode 100644
index 0000000..771002f
--- /dev/null
+++ b/src/crepe/facade/Font.cpp
@@ -0,0 +1,21 @@
+#include <SDL2/SDL_ttf.h>
+
+#include "../api/Asset.h"
+#include "../api/Config.h"
+
+#include "Font.h"
+
+using namespace std;
+using namespace crepe;
+
+Font::Font(const Asset & src, Mediator & mediator) : Resource(src, mediator) {
+	const Config & config = Config::get_instance();
+	const std::string FONT_PATH = src.get_path();
+	TTF_Font * loaded_font = TTF_OpenFont(FONT_PATH.c_str(), config.font.size);
+	if (loaded_font == NULL) {
+		throw runtime_error(format("Font: {} (path: {})", TTF_GetError(), FONT_PATH));
+	}
+	this->font = {loaded_font, [](TTF_Font * close_font) { TTF_CloseFont(close_font); }};
+}
+
+TTF_Font * Font::get_font() const { return this->font.get(); }
diff --git a/src/crepe/facade/Font.h b/src/crepe/facade/Font.h
new file mode 100644
index 0000000..b208d96
--- /dev/null
+++ b/src/crepe/facade/Font.h
@@ -0,0 +1,42 @@
+#pragma once
+
+#include <SDL2/SDL_ttf.h>
+#include <memory>
+
+#include "../Resource.h"
+#include "../api/Config.h"
+
+namespace crepe {
+
+class Asset;
+/**
+ * \brief Resource for managing font creation and destruction
+ *
+ * This class is a wrapper around an SDL_ttf font instance, encapsulating font loading and usage.
+ * It loads a font from an Asset and manages its lifecycle. The font is automatically unloaded
+ * when this object is destroyed.
+ */
+class Font : public Resource {
+
+public:
+	/**
+     * \param src The Asset containing the font file path and metadata to load the font.
+     * \param mediator The Mediator object used for managing the SDL context or related systems.
+     */
+	Font(const Asset & src, Mediator & mediator);
+	/**
+     * \brief Gets the underlying TTF_Font resource.
+     * 
+     * This function returns the raw pointer to the SDL_ttf TTF_Font object that represents
+     * the loaded font. This can be used with SDL_ttf functions to render text.
+     * 
+     * \return The raw TTF_Font object wrapped in a unique pointer.
+     */
+	TTF_Font * get_font() const;
+
+private:
+	//! The SDL_ttf font object with custom deleter.
+	std::unique_ptr<TTF_Font, std::function<void(TTF_Font *)>> font = nullptr;
+};
+
+} // namespace crepe
diff --git a/src/crepe/facade/FontFacade.cpp b/src/crepe/facade/FontFacade.cpp
new file mode 100644
index 0000000..87f95ab
--- /dev/null
+++ b/src/crepe/facade/FontFacade.cpp
@@ -0,0 +1,43 @@
+#include <fontconfig/fontconfig.h>
+#include <functional>
+#include <memory>
+#include <stdexcept>
+#include <string>
+
+#include "FontFacade.h"
+
+using namespace std;
+using namespace crepe;
+
+FontFacade::FontFacade() {
+	if (!FcInit()) throw runtime_error("Failed to initialize Fontconfig.");
+}
+
+FontFacade::~FontFacade() { FcFini(); }
+
+Asset FontFacade::get_font_asset(const string & font_family) {
+	FcPattern * raw_pattern
+		= FcNameParse(reinterpret_cast<const FcChar8 *>(font_family.c_str()));
+	if (raw_pattern == NULL) throw runtime_error("Failed to create font pattern.");
+
+	unique_ptr<FcPattern, function<void(FcPattern *)>> pattern{
+		raw_pattern, [](FcPattern * p) { FcPatternDestroy(p); }};
+
+	FcConfig * config = FcConfigGetCurrent();
+	if (config == NULL) throw runtime_error("Failed to get current Fontconfig configuration.");
+
+	FcResult result;
+	FcPattern * raw_matched_pattern = FcFontMatch(config, pattern.get(), &result);
+	if (raw_matched_pattern == NULL) throw runtime_error("No matching font found.");
+
+	unique_ptr<FcPattern, function<void(FcPattern *)>> matched_pattern
+		= {raw_matched_pattern, [](FcPattern * p) { FcPatternDestroy(p); }};
+
+	FcChar8 * file_path = nullptr;
+	FcResult res = FcPatternGetString(matched_pattern.get(), FC_FILE, 0, &file_path);
+	if (res != FcResultMatch || file_path == NULL)
+		throw runtime_error("Failed to get font file path.");
+
+	string font_file_path = reinterpret_cast<const char *>(file_path);
+	return Asset(font_file_path);
+}
diff --git a/src/crepe/facade/FontFacade.h b/src/crepe/facade/FontFacade.h
new file mode 100644
index 0000000..9761070
--- /dev/null
+++ b/src/crepe/facade/FontFacade.h
@@ -0,0 +1,34 @@
+#pragma once
+
+#include <memory>
+
+#include "../api/Asset.h"
+
+namespace crepe {
+
+/**
+ * 
+ * \brief Font facade class for converting font family names to absolute file paths
+ * 
+ */
+class FontFacade {
+public:
+	FontFacade();
+	~FontFacade();
+	FontFacade(const FontFacade & other) = delete;
+	FontFacade & operator=(const FontFacade & other) = delete;
+	FontFacade(FontFacade && other) noexcept = delete;
+	FontFacade & operator=(FontFacade && other) noexcept = delete;
+	/**
+	 * 
+	 * \brief Facade function to convert a font_family into an asset.
+	 * 
+	 * This function uses the FontConfig library to convert a font family name (Arial, Inter, Helvetica) and converts it to the font source path.
+	 * This function returns a default font path if the font_family name doesnt exist or cant be found
+	 * \param font_family Name of the font family name.
+	 * \return Asset with filepath to the corresponding font.
+	 */
+	Asset get_font_asset(const std::string & font_family);
+};
+
+} // namespace crepe
diff --git a/src/crepe/facade/SDLContext.cpp b/src/crepe/facade/SDLContext.cpp
index 7ccc243..fffbe34 100644
--- a/src/crepe/facade/SDLContext.cpp
+++ b/src/crepe/facade/SDLContext.cpp
@@ -6,6 +6,8 @@
 #include <SDL2/SDL_rect.h>
 #include <SDL2/SDL_render.h>
 #include <SDL2/SDL_surface.h>
+#include <SDL2/SDL_ttf.h>
+#include <SDL2/SDL_video.h>
 #include <array>
 #include <cmath>
 #include <cstddef>
@@ -30,6 +32,9 @@ using namespace std;
 
 SDLContext::SDLContext(Mediator & mediator) {
 	dbg_trace();
+	if (TTF_Init() == -1) {
+		throw runtime_error(format("SDL_ttf initialization failed: {}", TTF_GetError()));
+	}
 	if (SDL_Init(SDL_INIT_VIDEO) != 0) {
 		throw runtime_error(format("SDLContext: SDL_Init error: {}", SDL_GetError()));
 	}
@@ -71,13 +76,13 @@ SDLContext::~SDLContext() {
 	// thread that SDL_Init() was called on? This has caused problems for me
 	// before.
 	IMG_Quit();
+	TTF_Quit();
 	SDL_Quit();
 }
 
 Keycode SDLContext::sdl_to_keycode(SDL_Scancode sdl_key) {
-	if (!LOOKUP_TABLE.contains(sdl_key)) return Keycode::NONE;
-
-	return LOOKUP_TABLE.at(sdl_key);
+	if (!lookup_table.contains(sdl_key)) return Keycode::NONE;
+	return lookup_table.at(sdl_key);
 }
 
 const keyboard_state_t & SDLContext::get_keyboard_state() {
@@ -408,3 +413,7 @@ void SDLContext::set_color_texture(const Texture & texture, const Color & color)
 	SDL_SetTextureColorMod(texture.get_img(), color.r, color.g, color.b);
 	SDL_SetTextureAlphaMod(texture.get_img(), color.a);
 }
+
+Asset SDLContext::get_font_from_name(const std::string & font_family) {
+	return this->font_facade.get_font_asset(font_family);
+}
diff --git a/src/crepe/facade/SDLContext.h b/src/crepe/facade/SDLContext.h
index 8f4760e..b687f87 100644
--- a/src/crepe/facade/SDLContext.h
+++ b/src/crepe/facade/SDLContext.h
@@ -17,8 +17,10 @@
 #include "api/KeyCodes.h"
 #include "api/Sprite.h"
 #include "api/Transform.h"
+#include "types.h"
 
 #include "EventData.h"
+#include "FontFacade.h"
 
 namespace crepe {
 class Texture;
@@ -242,10 +244,24 @@ private:
 	CameraAuxiliaryData cam_aux_data;
 
 private:
+	//! instance of the font_facade
+	FontFacade font_facade{};
+
+public:
+	/**
+	 * \brief Function to Get asset from font_family
+	 * 
+	 * This function uses the FontFacade function to convert a font_family to an asset.
+	 * 
+	 * \param font_family name of the font style that needs to be used (will return an asset with default font path of the font_family doesnt exist)
+	 * 
+	 * \return asset with the font style absolute path
+	 */
+	Asset get_font_from_name(const std::string & font_family);
 	//! variable to store the state of each key (true = pressed, false = not pressed)
 	keyboard_state_t keyboard_state;
 	//! lookup table for converting SDL_SCANCODES to Keycodes
-	const std::unordered_map<SDL_Scancode, Keycode> LOOKUP_TABLE
+	const std::unordered_map<SDL_Scancode, Keycode> lookup_table
 		= {{SDL_SCANCODE_SPACE, Keycode::SPACE},
 		   {SDL_SCANCODE_APOSTROPHE, Keycode::APOSTROPHE},
 		   {SDL_SCANCODE_COMMA, Keycode::COMMA},