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

1 files changed, 43 insertions, 0 deletions

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);
+}