1 files changed, 112 insertions, 0 deletions
diff --git a/src/gui.c b/src/gui.c
new file mode 100644
index 0000000..297ff6f
--- /dev/null
+++ b/src/gui.c
@@ -0,0 +1,112 @@
+#include <gtk/gtk.h>
+
+#include <gui.h>
+#include <log.h>
+
+enum stepper_response_type {
+	STEP_PREV,
+	STEP_NEXT,
+};
+
+static struct gui_interface *interface;
+
+static void error_dialog(GtkWindow *parent, const char *msg)
+{
+	GtkWidget *dialog = gtk_dialog_new_with_buttons(
+		msg, parent, GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT,
+		"OK", GTK_RESPONSE_CLOSE, NULL);
+	GtkWidget *content = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
+	GtkWidget *label = gtk_label_new(msg);
+	g_signal_connect_swapped(dialog, "response",
+				 G_CALLBACK(gtk_window_destroy), dialog);
+
+	gtk_box_append(GTK_BOX(content), label);
+	gtk_widget_show(dialog);
+}
+
+static void stepper_response(GtkWidget *widget, enum stepper_response_type type)
+{
+	err ret = OK;
+
+	switch (type) {
+	case STEP_PREV:
+		ret = interface->step_prev();
+		break;
+	case STEP_NEXT:
+		ret = interface->step_next();
+		break;
+	default:
+		break;
+	}
+
+	if (ret == END || ret == ERR) {
+		error_dialog(GTK_WINDOW(widget),
+			     ret == END ? "Reached end" : "An error occured");
+	}
+}
+
+static void init_stepper_dialog(GtkWindow *parent)
+{
+	GtkWidget *stepper = gtk_dialog_new_with_buttons(
+		"Stepper", parent,
+		GTK_DIALOG_MODAL | GTK_DIALOG_DESTROY_WITH_PARENT, "Previous",
+		1, "Next", 2, NULL);
+
+	GtkWidget *content = gtk_dialog_get_content_area(GTK_DIALOG(stepper));
+	GtkWidget *label = gtk_label_new("Stepper");
+
+	g_signal_connect_swapped(stepper, "response",
+				 G_CALLBACK(stepper_response), stepper);
+
+	gtk_box_append(GTK_BOX(content), label);
+	gtk_widget_show(stepper);
+}
+
+static void init_execution_window(GtkApplication *app)
+{
+	GtkWidget *execution = gtk_application_window_new(app);
+	gtk_window_set_title(GTK_WINDOW(execution), "Execution");
+	gtk_window_set_default_size(GTK_WINDOW(execution), 200, 200);
+	gtk_widget_show(execution);
+
+	init_stepper_dialog(GTK_WINDOW(execution));
+}
+
+static void activate(GtkApplication *app, gpointer user_data)
+{
+	(void)user_data;
+	init_execution_window(app);
+}
+
+void gui_reg_names(const char *names, int n)
+{
+	(void)names;
+	(void)n;
+}
+
+void gui_reg_update(int reg, uint64_t value)
+{
+	(void)reg;
+	(void)value;
+}
+
+void gui_instr_done(char *instr)
+{
+	(void)instr;
+}
+
+void gui_register_interface(struct gui_interface *gui)
+{
+	interface = gui;
+}
+
+void gui_init(void)
+{
+	g_object_set(gtk_settings_get_default(),
+		     "gtk-application-prefer-dark-theme", TRUE, NULL);
+	GtkApplication *app = gtk_application_new("de.melvars.simsalasim",
+						  G_APPLICATION_DEFAULT_FLAGS);
+	g_signal_connect(app, "activate", G_CALLBACK(activate), NULL);
+	g_application_run(G_APPLICATION(app), 0, 0);
+	g_object_unref(app);
+}