imported irssi.

[silc.git] / apps / irssi / src / fe-text / textbuffer-view.h

diff --git a/apps/irssi/src/fe-text/textbuffer-view.h b/apps/irssi/src/fe-text/textbuffer-view.h
new file mode 100644 (file)
index 0000000..21ed28c
--- /dev/null
+++ b/apps/irssi/src/fe-text/textbuffer-view.h
@@ -0,0 +1,131 @@
+#ifndef __TEXTBUFFER_VIEW_H
+#define __TEXTBUFFER_VIEW_H
+
+#include "textbuffer.h"
+#include "screen.h"
+
+typedef struct {
+       unsigned char *start;
+       int indent;
+       int color;
+
+       /* first word in line belong to the end of the last word in
+          previous line */
+       unsigned int continues:1;
+} LINE_CACHE_SUB_REC;
+
+typedef struct {
+       time_t last_access;
+
+       int count; /* number of real lines */
+
+       /* variable sized array, actually. starts from the second line,
+          so size of it is count-1 */
+       LINE_CACHE_SUB_REC lines[1];
+} LINE_CACHE_REC;
+
+typedef struct {
+       int refcount;
+       int width;
+
+       GHashTable *line_cache;
+
+       /* should contain the same value for each cache that uses the
+          same buffer */
+       unsigned char update_counter;
+        /* number of real lines used by the last line in buffer */
+       int last_linecount;
+} TEXT_BUFFER_CACHE_REC;
+
+typedef struct {
+       TEXT_BUFFER_REC *buffer;
+       GSList *siblings; /* other views that use the same buffer */
+
+        WINDOW *window;
+       int width, height;
+
+       int default_indent;
+       int longword_noindent:1;
+
+       TEXT_BUFFER_CACHE_REC *cache;
+       int ypos; /* cursor position - visible area is 0..height-1 */
+
+       GList *startline; /* line at the top of the screen */
+       int subline; /* number of "real lines" to skip from `startline' */
+
+        /* marks the bottom of the text buffer */
+       GList *bottom_startline;
+       int bottom_subline;
+
+       /* how many empty lines are in screen. a screenful when started
+          or used /CLEAR */
+       int empty_linecount; 
+        /* window is at the bottom of the text buffer */
+       unsigned int bottom:1;
+
+       /* Bookmarks to the lines in the buffer - removed automatically
+          when the line gets removed from buffer */
+        GHashTable *bookmarks;
+} TEXT_BUFFER_VIEW_REC;
+
+/* Create new view. */
+TEXT_BUFFER_VIEW_REC *textbuffer_view_create(TEXT_BUFFER_REC *buffer,
+                                            int width, int height,
+                                            int default_indent,
+                                            int longword_noindent);
+/* Destroy the view. */
+void textbuffer_view_destroy(TEXT_BUFFER_VIEW_REC *view);
+/* Change the default indent position */
+void textbuffer_view_set_default_indent(TEXT_BUFFER_VIEW_REC *view,
+                                       int default_indent,
+                                       int longword_noindent);
+
+/* Resize the view. */
+void textbuffer_view_resize(TEXT_BUFFER_VIEW_REC *view, int width, int height);
+/* Clear the view, don't actually remove any lines from buffer. */
+void textbuffer_view_clear(TEXT_BUFFER_VIEW_REC *view);
+
+#define textbuffer_view_get_lines(view) \
+        ((view)->buffer->lines)
+
+/* Scroll the view up/down */
+void textbuffer_view_scroll(TEXT_BUFFER_VIEW_REC *view, int lines);
+/* Scroll to specified line */
+void textbuffer_view_scroll_line(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line);
+/* Return line cache */
+LINE_CACHE_REC *textbuffer_view_get_line_cache(TEXT_BUFFER_VIEW_REC *view,
+                                              LINE_REC *line);
+
+/*
+   Functions for manipulating the text buffer, using these commands update
+   all views that use the buffer.
+*/
+
+/* Update some line in the buffer which has been modified using
+   textbuffer_append() or textbuffer_insert(). */
+void textbuffer_view_insert_line(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line);
+/* Remove one line from buffer. */
+void textbuffer_view_remove_line(TEXT_BUFFER_VIEW_REC *view, LINE_REC *line);
+/* Remove all lines from buffer. */
+void textbuffer_view_remove_all_lines(TEXT_BUFFER_VIEW_REC *view);
+
+/* Set a bookmark in view */
+void textbuffer_view_set_bookmark(TEXT_BUFFER_VIEW_REC *view,
+                                 const char *name, LINE_REC *line);
+/* Set a bookmark in view to the bottom line */
+void textbuffer_view_set_bookmark_bottom(TEXT_BUFFER_VIEW_REC *view,
+                                        const char *name);
+/* Return the line for bookmark */
+LINE_REC *textbuffer_view_get_bookmark(TEXT_BUFFER_VIEW_REC *view,
+                                      const char *name);
+
+/* Specify window where the changes in view should be drawn,
+   NULL disables it. */
+void textbuffer_view_set_window(TEXT_BUFFER_VIEW_REC *view, WINDOW *window);
+/* Redraw the view */
+void textbuffer_view_redraw(TEXT_BUFFER_VIEW_REC *view);
+
+void textbuffer_view_init(void);
+void textbuffer_view_deinit(void);
+
+#endif