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eeshow/gui.c: add navigation in history

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This commit is contained in:
Werner Almesberger 2016-08-06 10:00:29 -03:00
parent b067cf9a38
commit acbce9a214
1 changed files with 58 additions and 9 deletions
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67
eeshow/gui.c
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@ -52,6 +52,7 @@ struct gui_sheet {
};
struct gui_hist {
struct gui_ctx *ctx; /* back link */
struct hist *hist;
struct gui_sheet *sheets; /* NULL if failed */
struct gui_hist *next;
@ -238,18 +239,67 @@ static void zoom_to_extents(struct gui_ctx *ctx)
}
/* ----- Need this for jumping around -------------------------------------- */
static void go_to_sheet(struct gui_ctx *ctx, struct gui_sheet *sheet);
static bool go_up_sheet(struct gui_ctx *ctx);
/* ----- Revision history -------------------------------------------------- */
static void hide_history(void *user)
static void hide_history(struct gui_ctx *ctx)
{
struct gui_ctx *ctx = user;
overlay_remove_all(&ctx->vcs_overlays);
redraw(ctx);
}
static struct gui_sheet *find_corresponding_sheet(struct gui_ctx *ctx,
struct gui_sheet *sheets)
{
struct gui_sheet *sheet, *plan_b;
const char *title = ctx->curr_sheet->sch->title;
/* plan A: try to find sheet with same name */
if (title)
for (sheet = sheets; sheet; sheet = sheet->next)
if (sheet->sch->title &&
!strcmp(title, sheet->sch->title))
return sheet;
/* plan B: use sheet in same position in sheet sequence */
plan_b = ctx->curr_hist->sheets;
for (sheet = sheets; sheet; sheet = sheet->next) {
if (plan_b == ctx->curr_sheet)
return sheet;
plan_b = plan_b->next;
}
/* plan C: just go to the top */
return sheets;
}
static void click_history(void *user)
{
struct gui_hist *h = user;
struct gui_ctx *ctx = h->ctx;
if (h->sheets && h != ctx->curr_hist) {
struct gui_sheet *sheet;
sheet = find_corresponding_sheet(ctx, h->sheets);
ctx->curr_hist = h;
go_to_sheet(ctx, sheet);
}
hide_history(ctx);
}
static void show_history(struct gui_ctx *ctx)
{
struct gui_hist *h = ctx->hist;
@ -260,7 +310,7 @@ static void show_history(struct gui_ctx *ctx)
// @@@ \n doesn't work with cairo_show_text :-(
if (asprintf(&s, "commit\n%s", vcs_git_summary(h->hist))) {}
overlay_add(&ctx->vcs_overlays, s, &ctx->aois,
NULL, hide_history, ctx);
NULL, click_history, h);
}
redraw(ctx);
}
@ -277,9 +327,6 @@ static void show_history_cb(void *user)
/* ----- Navigate sheets --------------------------------------------------- */
static bool go_up_sheet(struct gui_ctx *ctx);
static void close_subsheet(void *user)
{
struct gui_ctx *ctx = user;
@ -295,7 +342,8 @@ static void go_to_sheet(struct gui_ctx *ctx, struct gui_sheet *sheet)
if (ctx->hist) {
char *s;
if (asprintf(&s, "%.40s", vcs_git_summary(ctx->hist->hist))) {}
if (asprintf(&s, "%.40s",
vcs_git_summary(ctx->curr_hist->hist))) {}
overlay_add(&ctx->sheet_overlays, s, &ctx->aois,
NULL, show_history_cb, ctx);
}
@ -649,6 +697,7 @@ if (!ahc->limit)
ahc->limit--;
for (anchor = &ctx->hist; *anchor; anchor = &(*anchor)->next);
*anchor = alloc_type(struct gui_hist);
(*anchor)->ctx = ctx;
(*anchor)->hist = h;
sch = parse_sheets(h, ahc->n_args, ahc->args, ahc->recurse);
(*anchor)->sheets = sch ? get_sheets(ctx, sch) : NULL;
@ -665,7 +714,7 @@ static void get_revisions(struct gui_ctx *ctx,
.n_args = n_args,
.args = args,
.recurse = recurse,
.limit = 10,
.limit = 30,
};
if (!vcs_git_try(sch_name)) {