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Add marker-line functionality for scrollback, instant seek.

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Fixes #662.
This commit is contained in:
RichardHitt
2014-04-02 16:09:13 -07:00
parent 5e8bc980e1
commit 0f828dd74f
7 changed files with 124 additions and 10 deletions
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83
src/fe-gtk/xtext.c
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@@ -3862,7 +3862,12 @@ gtk_xtext_kill_ent (xtext_buffer *buffer, textentry *ent)
buffer->last_ent_end = NULL;
}
if (buffer->marker_pos == ent) buffer->marker_pos = NULL;
if (buffer->marker_pos == ent)
{
/* Allow for "Marker line reset because exceeded scrollback limit. to appear. */
buffer->marker_pos = ent->next;
buffer->marker_state = MARKER_RESET_BY_KILL;
}
if (ent->marks)
{
@@ -3961,6 +3966,7 @@ void
gtk_xtext_clear (xtext_buffer *buf, int lines)
{
textentry *next;
int marker_reset = FALSE;
if (lines != 0)
{
@@ -3970,6 +3976,8 @@ gtk_xtext_clear (xtext_buffer *buf, int lines)
lines *= -1;
while (lines)
{
if (buf->text_last == buf->marker_pos)
marker_reset = TRUE;
gtk_xtext_remove_bottom (buf);
lines--;
}
@@ -3979,6 +3987,8 @@ gtk_xtext_clear (xtext_buffer *buf, int lines)
/* delete lines from top */
while (lines)
{
if (buf->text_first == buf->marker_pos)
marker_reset = TRUE;
gtk_xtext_remove_top (buf);
lines--;
}
@@ -3995,6 +4005,8 @@ gtk_xtext_clear (xtext_buffer *buf, int lines)
buf->last_ent_start = NULL;
buf->last_ent_end = NULL;
buf->marker_pos = NULL;
if (buf->text_first)
marker_reset = TRUE;
dontscroll (buf);
while (buf->text_first)
@@ -4014,6 +4026,9 @@ gtk_xtext_clear (xtext_buffer *buf, int lines)
{
gtk_xtext_calc_lines (buf, FALSE);
}
if (marker_reset)
buf->marker_state = MARKER_RESET_BY_CLEAR;
}
static gboolean
@@ -4528,14 +4543,13 @@ gtk_xtext_append_entry (xtext_buffer *buf, textentry * ent, time_t stamp)
ent->sublines = NULL;
buf->num_lines += gtk_xtext_lines_taken (buf, ent);
if (buf->reset_marker_pos ||
((buf->marker_pos == NULL || buf->marker_seen) && (buf->xtext->buffer != buf ||
!gtk_window_has_toplevel_focus (GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (buf->xtext)))))))
if ((buf->marker_pos == NULL || buf->marker_seen) && (buf->xtext->buffer != buf ||
!gtk_window_has_toplevel_focus (GTK_WINDOW (gtk_widget_get_toplevel (GTK_WIDGET (buf->xtext))))))
{
buf->marker_pos = ent;
buf->marker_state = MARKER_IS_SET;
dontscroll (buf); /* force scrolling off */
buf->marker_seen = FALSE;
buf->reset_marker_pos = FALSE;
}
if (buf->xtext->max_lines > 2 && buf->xtext->max_lines < buf->num_lines)
@@ -4782,13 +4796,64 @@ gtk_xtext_set_wordwrap (GtkXText *xtext, gboolean wordwrap)
xtext->wordwrap = wordwrap;
}
void
gtk_xtext_set_marker_last (session *sess)
{
xtext_buffer *buf = sess->res->buffer;
buf->marker_pos = buf->text_last;
buf->marker_state = MARKER_IS_SET;
}
void
gtk_xtext_reset_marker_pos (GtkXText *xtext)
{
xtext->buffer->marker_pos = NULL;
dontscroll (xtext->buffer); /* force scrolling off */
gtk_xtext_render_page (xtext);
xtext->buffer->reset_marker_pos = TRUE;
if (xtext->buffer->marker_pos)
{
xtext->buffer->marker_pos = NULL;
dontscroll (xtext->buffer); /* force scrolling off */
gtk_xtext_render_page (xtext);
xtext->buffer->marker_state = MARKER_RESET_MANUALLY;
}
}
int
gtk_xtext_moveto_marker_pos (GtkXText *xtext)
{
gdouble value = 0;
xtext_buffer *buf = xtext->buffer;
textentry *ent = buf->text_first;
GtkAdjustment *adj = xtext->adj;
if (buf->marker_pos == NULL)
return buf->marker_state;
if (gtk_xtext_check_ent_visibility (xtext, buf->marker_pos, 1) == FALSE)
{
while (ent)
{
if (ent == buf->marker_pos)
break;
value += g_slist_length (ent->sublines);
ent = ent->next;
}
if (value >= adj->value && value < adj->value + adj->page_size)
return MARKER_IS_SET;
value -= adj->page_size / 2;
if (value < 0)
value = 0;
if (value > adj->upper - adj->page_size)
value = adj->upper - adj->page_size;
gtk_adjustment_set_value (adj, value);
gtk_xtext_render_page (xtext);
}
/* If we previously lost marker position to scrollback limit -- */
if (buf->marker_pos == buf->text_first &&
buf->marker_state == MARKER_RESET_BY_KILL)
return MARKER_RESET_BY_KILL;
else
return MARKER_IS_SET;
}
void