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Improve text repositioning when searchbar string is modified.

This commit is contained in:
Richard Hitt 2013-09-18 15:25:50 -07:00
parent 1007af9506
commit cd825ac735
2 changed files with 44 additions and 27 deletions
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56
src/fe-gtk/xtext.c
View File

@ -96,20 +96,6 @@
static GtkWidgetClass *parent_class = NULL;
/*
* offsets_t is used for retaining search information.
* It is stored in the 'data' member of a GList,
* as chained from ent->marks. It saves starting and
* ending+1 offset of a found occurrence.
*/
typedef union offsets_u {
struct offsets_s {
guint16 start;
guint16 end;
} o;
guint32 u;
} offsets_t;
struct textentry
{
struct textentry *next;
@ -5265,7 +5251,7 @@ gtk_xtext_unstrip_color (gint start, gint end, GSList *slp, GList **gl, gint max
while (cursl)
{
offlen_t ol;
ol.u = GPOINTER_TO_UINT(cursl->data);
ol.u = GPOINTER_TO_UINT (cursl->data);
if (start < ol.o.len)
{
off1 = ol.o.off + start;
@ -5281,7 +5267,7 @@ gtk_xtext_unstrip_color (gint start, gint end, GSList *slp, GList **gl, gint max
while (cursl)
{
offlen_t ol;
ol.u = GPOINTER_TO_UINT(cursl->data);
ol.u = GPOINTER_TO_UINT (cursl->data);
if (end < ol.o.len)
{
off2 = ol.o.off + end;
@ -5393,6 +5379,7 @@ gtk_xtext_search_textentry_del (xtext_buffer *buf, textentry *ent)
{
buf->cursearch = NULL;
buf->curmark = NULL;
buf->curdata.u = 0;
}
if (buf->pagetop_ent == ent)
{
@ -5429,6 +5416,7 @@ gtk_xtext_search_fini (xtext_buffer *buf)
buf->search_flags = 0;
buf->cursearch = NULL;
buf->curmark = NULL;
/* but leave buf->curdata.u alone! */
if (buf->search_re)
{
g_regex_unref (buf->search_re);
@ -5475,6 +5463,7 @@ gtk_xtext_search_init (xtext_buffer *buf, const gchar *text, gtk_xtext_search_fl
buf->search_flags = flags;
buf->cursearch = NULL;
buf->curmark = NULL;
/* but leave buf->curdata.u alone! */
return FALSE;
}
@ -5565,24 +5554,36 @@ gtk_xtext_search (GtkXText * xtext, const gchar *text, gtk_xtext_search_flags fl
}
}
}
#if 0
/* If user changed the search, let's look starting where he was */
else if (buf->hintsearch)
{
for (ent = buf->hintsearch; ent; ent = BACKWARD? ent->prev: ent->next)
if (ent->marks)
break;
if (ent == NULL)
for (ent = buf->hintsearch; ent; ent = BACKWARD? ent->next: ent->prev)
GList *mark;
offsets_t last, this;
/*
* If we already have a 'current' item from the last search, and if
* the first character of an occurrence on this line for this new search
* is within that former item, use the occurrence as current.
*/
ent = buf->hintsearch;
last.u = buf->curdata.u;
for (mark = ent->marks; mark; mark = mark->next)
{
this.u = GPOINTER_TO_UINT (mark->data);
if (this.o.start >= last.o.start && this.o.start < last.o.end)
break;
}
if (mark == NULL)
{
for (ent = buf->hintsearch; ent; ent = BACKWARD? ent->prev: ent->next)
if (ent->marks)
break;
if (ent)
{
buf->cursearch = g_list_find (buf->search_found, ent);
buf->curmark = FIRSTLAST (ent->marks);
mark = ent? FIRSTLAST (ent->marks): NULL;
}
buf->cursearch = g_list_find (buf->search_found, ent);
buf->curmark = mark;
}
#endif
/* This is a fresh search */
else
{
@ -5590,6 +5591,7 @@ gtk_xtext_search (GtkXText * xtext, const gchar *text, gtk_xtext_search_flags fl
ent = buf->cursearch->data;
buf->curmark = FIRSTLAST (ent->marks);
}
buf->curdata.u = (buf->curmark)? GPOINTER_TO_UINT (buf->curmark->data): 0;
}
}
buf->hintsearch = ent;

15
src/fe-gtk/xtext.h
View File

@ -64,6 +64,20 @@ typedef struct _GtkXText GtkXText;
typedef struct _GtkXTextClass GtkXTextClass;
typedef struct textentry textentry;
/*
* offsets_t is used for retaining search information.
* It is stored in the 'data' member of a GList,
* as chained from ent->marks. It saves starting and
* ending+1 offset of a found occurrence.
*/
typedef union offsets_u {
struct offsets_s {
guint16 start;
guint16 end;
} o;
guint32 u;
} offsets_t;
typedef struct {
GtkXText *xtext; /* attached to this widget */
@ -105,6 +119,7 @@ typedef struct {
gtk_xtext_search_flags search_flags; /* match, bwd, highlight */
GList *cursearch; /* GList whose 'data' pts to current textentry */
GList *curmark; /* current item in ent->marks */
offsets_t curdata; /* current offset info, from *curmark */
GRegex *search_re; /* Compiled regular expression */
textentry *hintsearch; /* textentry found for last search */
} xtext_buffer;