1 files changed, 103 insertions, 0 deletions
diff --git a/src/screen.h b/src/screen.h
new file mode 100644
index 0000000..5762009
--- /dev/null
+++ b/src/screen.h
@@ -0,0 +1,103 @@
+#include "addrs.h"
+
+#define MAX_SCREENS 7
+#define LINE_SIZE 40
+#define SCREEN_SIZE 920
+#define BOTTOM_LINE_OFFS 880
+
+#define SCR_UNUSED 0
+#define SCR_INACTIVE 1
+#define SCR_ACTIVE 2
+
+#define SCR_CURR 0xff
+
+/**** public API ****/
+
+/* the screen that's currently displaying */
+extern char scr_current;
+
+/* which screens are "active". the screen being displayed is
+   never active. any screen that's not visible that's had anything
+   written to it gets marked active. switching the display to an
+   active screen clears its active flag. */
+extern char scr_active[MAX_SCREENS];
+
+/* call before using any of the other functions. sets up the
+   display list, clears all screen memory, selects screen 0
+   for display. */
+void scr_init(void);
+
+/* creates a screen, if possible. we only get 7; attempts to create
+   more that that will return -1. on success, returns the screen
+   number (0-6). the name gets copied to the 1st line of the screen's
+   status box.
+	if display is true, the new screen displays. otherwise it's created
+   "in the background".
+ */
+char scr_create(const char *name, char display);
+
+/* destroys a screen (frees up its slot). */
+void scr_destroy(char s);
+
+/* sets the topic for a screen (the 2nd line of the status box).
+   this can't just be another argument to scr_create() because we
+   don't know the topic yet when we create a screen (also, the
+   server and msgs windows don't have topics anyway). */
+void scr_set_topic(char s, const char *topic);
+
+/* switch display to screen s. updates the display list. clears
+   s's active flag. calls scr_show_status(). */
+void scr_display(char s);
+
+/* XXX: does this need to be public? */
+void scr_show_status(char s);
+
+/* calls scr_display() on the currently-visible screen.
+   called by the edit box code, when closing the edit box (user has
+   pressed Enter or aborted the message). */
+void scr_refresh(void);
+
+/* given a channel name, find its screen. if there's no match,
+   returns 0 (the server messages screen) */
+char scr_getbyname(const char *name);
+
+/* print one character to a screen. handles scrolling. will not
+   print an EOL at column 0 (just ignores it). */
+void scr_putc(char s, char c);
+
+/* print text to a screen. handles scrolling. this
+   doesn't have to be the screen being displayed, of course;
+   if it's not, it gets marked as active. */
+void scr_print(char s, const char *text);
+
+/* set a screen's status to active, if it's not the currently-displayed
+   one. scr_print() sets it already, but anything that uses scr_putc()
+   will have to call this. */
+void scr_activate(char s);
+
+/* XXX: this really should be in a utils.c or common.c... */
+void scr_waitvcount(u8 c);
+
+/**** end of public API ****/
+
+/* notes:
+
+If a character gets printed to the bottom right corner of a screen,
+it *doesn't* scroll yet. It will, the next time a character is printed
+to that screen.
+
+This thing uses a modified font that's in ASCII order rather than
+Atari screencode order. So "printing" just means copying... except
+for IRC formatting codes.
+
+scr_print() has to handle formatting: at least it should print inverse
+video for either bold or italic. It will print incoming inverse
+video as-is; it's the caller's responsibility to replace unprintable
+characters (e.g. any char >= 128 might become an inverse question
+mark). This has to happen because nick highlighting will use inverse
+video.
+
+Also, scr_print() should eventually be smart enough to strip out color
+codes.
+
+*/