1 files changed, 131 insertions, 0 deletions
diff --git a/src/fe-text/textbuffer-view.h b/src/fe-text/textbuffer-view.h
new file mode 100644
index 00000000..cdb55b7f
--- /dev/null
+++ b/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;
+
+	TEXT_BUFFER_CACHE_REC *cache;
+	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;
+
+	/* info how to efficiently refresh window buffer */
+	//unsigned int redraw:1;
+	int ypos; /* cursor position - visible area is 0..height-1 */
+	/*GList *drawn_startline;
+        int drawn_subline;*/
+
+	/* 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);
+/* 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);
+
+/* 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