init commit

wofi/src/utils_g.c

@@ -0,0 +1,80 @@
+/*
+ *  Copyright (C) 2020 Scoopta
+ *  This file is part of Wofi
+ *  Wofi is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    Wofi is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with Wofi.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <utils_g.h>
+
+#include <wofi_api.h>
+
+GdkPixbuf* utils_g_resize_pixbuf(GdkPixbuf* pixbuf, uint64_t image_size, GdkInterpType interp) {
+	int width = gdk_pixbuf_get_width(pixbuf);
+	int height = gdk_pixbuf_get_height(pixbuf);
+
+	if(height > width) {
+		float percent = (float) image_size / height;
+		GdkPixbuf* tmp = gdk_pixbuf_scale_simple(pixbuf, width * percent, image_size, interp);
+		g_object_unref(pixbuf);
+		return tmp;
+	} else {
+		float percent = (float) image_size / width;
+		GdkPixbuf* tmp = gdk_pixbuf_scale_simple(pixbuf, image_size, height * percent, interp);
+		g_object_unref(pixbuf);
+		return tmp;
+	}
+}
+
+GdkPixbuf* utils_g_pixbuf_from_base64(char* base64) {
+	char* str = strdup(base64);
+	char* original_str = str;
+
+	if(strncmp(str, "data:", sizeof("data:") - 1) == 0) {
+		str += sizeof("data:") - 1;
+	}
+
+	GError* err = NULL;
+	GdkPixbufLoader* loader;
+	if(strncmp(str, "image/", sizeof("image/") - 1) == 0) {
+		char* mime = strchr(str, ';');
+		*mime = 0;
+		loader = gdk_pixbuf_loader_new_with_mime_type(str, &err);
+		if(err != NULL) {
+			goto fail;
+		}
+		str = mime + 1;
+		str = strchr(str, ',') + 1;
+	} else {
+		loader = gdk_pixbuf_loader_new();
+	}
+
+	gsize data_l;
+	guchar* data = g_base64_decode(str, &data_l);
+
+	gdk_pixbuf_loader_write(loader, data, data_l, &err);
+	if(err != NULL) {
+		g_free(data);
+		goto fail;
+	}
+
+	g_free(data);
+
+	free(original_str);
+	return gdk_pixbuf_loader_get_pixbuf(loader);
+
+	fail:
+	free(str);
+	fprintf(stderr, "Error loading base64 %s\n", err->message);
+	return NULL;
+}