added Interface class to ease porting SciTECO to other platforms (toolkits)

 * will support Scintilla with Scinterm/NCurses
 * changes are in such a way that the generated machine code should have almost no overhead compared
   to the previous implementation (at least when compiled with optimizations)

1 files changed, 54 insertions, 0 deletions

diff --git a/interface.h b/interface.h
new file mode 100644
index 0000000..a67fbfa
--- /dev/null
+++ b/interface.h
@@ -0,0 +1,54 @@
+#ifndef __INTERFACE_H
+#define __INTERFACE_H
+
+#include <glib.h>
+
+#include <Scintilla.h>
+
+/*
+ * Base class for all user interfaces - used mereley as a class interface.
+ * The actual instance of the interface has the platform-specific type
+ * (e.g. InterfaceGtk) since we would like to have the benefits of using
+ * classes but avoid the calling overhead when invoking virtual methods
+ * on Interface pointers.
+ * There's only one Interface* instance in the system.
+ */
+class Interface {
+public:
+	virtual void parse_args(int &argc, char **&argv) {}
+
+	enum MessageType {
+		MSG_USER,
+		MSG_INFO,
+		MSG_WARNING,
+		MSG_ERROR
+	};
+	virtual void msg(MessageType type, const gchar *fmt, ...)
+		     G_GNUC_PRINTF(3, 4) = 0;
+
+	virtual sptr_t ssm(unsigned int iMessage,
+			   uptr_t wParam = 0, sptr_t lParam = 0) = 0;
+
+	virtual void cmdline_update(const gchar *cmdline) = 0;
+
+	enum PopupFileType {
+		POPUP_FILE,
+		POPUP_DIRECTORY
+	};
+	virtual void popup_add_filename(PopupFileType type,
+					const gchar *filename,
+		     			bool highlight = false) = 0;
+	virtual void popup_show(void) = 0;
+	virtual void popup_clear(void) = 0;
+
+	/* main entry point */
+	virtual void event_loop(void) = 0;
+};
+
+#ifdef INTERFACE_GTK
+#include "interface-gtk.h"
+#elif defined(INTERFACE_NCURSES)
+#include "interface-ncurses.h"
+#endif
+
+#endif