initial commit

src/addtax.c

@@ -0,0 +1,95 @@
+#include <gtk/gtk.h>
+#include <math.h>
+#include <libintl.h>
+#include <locale.h>
+#include <stdbool.h>
+#include "misc.h"
+
+#define _(STRING) gettext(STRING)
+#define TAX 1.111111111
+
+GtkLabel *calculated_value = NULL;
+
+void calculate_tax(GtkWidget *entry) {
+	char *entry_text;
+	float money;
+	const gchar *label_text;
+	entry_text = (char*) gtk_entry_get_text(GTK_ENTRY(entry));
+	money = atof(entry_text);
+	if (is_float(entry_text, money)) {
+		g_print("$%d * %f = ", (int) round(money), TAX);
+		money = money * TAX;
+		g_print("$%d\n", (int) round(money));
+		label_text = g_strconcat((const gchar *) "$", g_strdup_printf("%i", (int) round(money)), NULL);
+		gtk_label_set_text(calculated_value, label_text);
+	}
+}
+
+int main(int argc, char *argv[]) {
+	int opt;
+	
+	float money;
+	
+	setlocale(LC_ALL, "");
+	bindtextdomain("addtax", "/usr/share/locale/");
+	textdomain("addtax");
+	
+	if (argc > 1) {
+		while ((opt = getopt(argc, argv, "")) != -1) {
+			switch (opt) {
+				default:
+					fprintf(stderr, _("Usage: %s [prices...]\n"), argv[0]);
+					return 1;
+			}
+		}
+		
+		for (opt = 1; opt < argc; opt++) {
+			money = atof(argv[opt]);
+			if (is_float(argv[opt], money)) {
+				printf("$%d * %f = ", (int) round(money), TAX);
+				money = money * TAX;
+				printf("$%d\n", (int) round(money));
+			}
+			else {
+				fprintf(stderr, _("Usage: %s [prices...]\n"), argv[0]);
+				return 1;
+			}
+		}
+		return 0;
+	}
+
+	GtkBuilder *builder;
+	GtkWidget *window;
+
+	gtk_init(&argc, &argv);
+
+	builder = gtk_builder_new();
+	gtk_builder_add_from_resource(builder, "/cl/cromer/addtax/window_main.glade", NULL);
+
+	window = GTK_WIDGET(gtk_builder_get_object(builder, "window_main"));
+	gtk_builder_connect_signals(builder, NULL);
+
+	calculated_value = (GtkLabel*) gtk_builder_get_object (builder, "calculated_value");
+
+	g_object_unref(builder);
+
+	gtk_widget_show(window);
+	gtk_main();
+
+	return 0;
+}
+
+// Called when calculate is clicked
+void on_button_calculate_clicked(GtkWidget *button, GtkWidget *entry) {
+	calculate_tax(entry);
+}
+
+// Called when the user presses enter on the entry
+void on_entry_price_activate(GtkWidget *entry) {
+	calculate_tax(entry);
+}
+
+// Called when window is closed
+void on_window_main_destroy() {
+	gtk_main_quit();
+}

src/meson.build

@@ -0,0 +1,23 @@
+gtk_dep = dependency('gtk+-3.0', version : '>=3.0.0')
+# gmodule-export-2.0 is needed to connect the handlers
+gmodule_dep = dependency('gmodule-export-2.0', version : '>=2.0')
+
+# Check for the math library
+cc = meson.get_compiler('c')
+m_dep = cc.find_library('m', required : false)
+
+# -no-pie so that the executable is double clickable in gui
+c_args = ['-no-pie']
+link_args = ['-no-pie']
+
+sources = ['addtax.c']
+sources += ['misc.c']
+sources += ['misc.h']
+sources += [main_resource_c]
+
+executable('addtax',
+	sources,
+	c_args : c_args,
+	link_args : link_args,
+	dependencies : [gtk_dep, m_dep, gmodule_dep],
+	install : true)

src/misc.c

@@ -0,0 +1,19 @@
+#include <stdbool.h>
+#include <unistd.h>
+#include <ctype.h>
+#include <stdlib.h>
+
+bool is_float(const char *s, float dest) {
+	if (s == NULL) {
+		return false;
+	}
+	char *endptr;
+	dest = (float) strtod(s, &endptr);
+	if (s == endptr) {
+		return false;
+	}
+	while (isspace((unsigned char ) *endptr)) {
+		endptr++;
+	}
+	return *endptr == '\0';
+}

src/misc.h

@@ -0,0 +1 @@
+bool is_float(const char *s, float dest);