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eda-tools/eeshow/gui/history.c

275 lines
5.4 KiB
C

/*
* gui/history.c - Revision history (navigation)
*
* Written 2016 by Werner Almesberger
* Copyright 2016 by Werner Almesberger
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <stddef.h>
#include <stdbool.h>
#include <stdlib.h>
#include <gtk/gtk.h>
#include "misc/util.h"
#include "file/git-hist.h"
#include "gui/fmt-pango.h"
#include "gui/style.h"
#include "gui/aoi.h"
#include "gui/over.h"
#include "gui/input.h"
#include "gui/common.h"
static void hide_history(struct gui_ctx *ctx)
{
input_pop();
ctx->showing_history = 0;
do_revision_overlays(ctx);
redraw(ctx);
}
static void set_history_style(struct gui_hist *h, bool current)
{
struct gui_ctx *ctx = h->ctx;
struct overlay_style style = overlay_style_dense;
const struct gui_hist *new = ctx->new_hist;
const struct gui_hist *old = ctx->old_hist;
/* this is in addition to showing detailed content */
if (current)
style.width++;
switch (ctx->selecting) {
case sel_only:
case sel_split:
style.frame = COLOR(FRAME_SEL_ONLY);
break;
case sel_old:
style.frame = COLOR(FRAME_SEL_OLD);
break;
case sel_new:
style.frame = COLOR(FRAME_SEL_NEW);
break;
default:
abort();
}
if (ctx->new_hist == h || ctx->old_hist == h) {
style.width++;
style.font = BOLD_FONT;
}
if (ctx->old_hist) {
if (h == new)
style.bg = COLOR(BG_NEW);
if (h == old)
style.bg = COLOR(BG_OLD);
}
if (h->identical)
style.fg = RGBA(0.5, 0.5, 0.5, 1);
if (!h->sheets)
style.fg = RGBA(0.7, 0.0, 0.0, 1);
overlay_style(h->over, &style);
}
static bool hover_history(void *user, bool on)
{
struct gui_hist *h = user;
struct gui_ctx *ctx = h->ctx;
char *s;
if (on) {
s = vcs_git_long_for_pango(h->vcs_hist, fmt_pango);
overlay_text_raw(h->over, s);
free(s);
} else {
overlay_text(h->over, "<small>%s</small>",
vcs_git_summary(h->vcs_hist));
}
set_history_style(h, on);
redraw(ctx);
return 1;
}
static void click_history(void *user)
{
struct gui_hist *h = user;
struct gui_ctx *ctx = h->ctx;
struct gui_sheet *sheet, *old_sheet;
hide_history(ctx);
if (!h->sheets)
return;
sheet = find_corresponding_sheet(h->sheets,
ctx->new_hist->sheets, ctx->curr_sheet);
old_sheet = find_corresponding_sheet(
ctx->old_hist ? ctx->old_hist->sheets : ctx->new_hist->sheets,
ctx->new_hist->sheets, ctx->curr_sheet);
switch (ctx->selecting) {
case sel_only:
ctx->new_hist = h;
break;
case sel_split:
ctx->old_hist = ctx->new_hist;
ctx->new_hist = h;
break;
case sel_new:
ctx->new_hist = h;
break;
case sel_old:
ctx->old_hist = h;
break;
default:
abort();
}
ctx->diff_mode = diff_delta;
if (ctx->old_hist) {
if (ctx->new_hist->age > ctx->old_hist->age) {
swap(ctx->new_hist, ctx->old_hist);
if (ctx->selecting == sel_old) {
go_to_sheet(ctx, sheet);
} else {
go_to_sheet(ctx, old_sheet);
render_delta(ctx);
}
} else {
if (ctx->selecting != sel_old)
go_to_sheet(ctx, sheet);
else
render_delta(ctx);
}
}
if (ctx->old_hist == ctx->new_hist)
ctx->old_hist = NULL;
do_revision_overlays(ctx);
redraw(ctx);
}
static void ignore_click(void *user)
{
}
static struct gui_hist *skip_history(struct gui_ctx *ctx, struct gui_hist *h)
{
struct overlay_style style = overlay_style_dense;
unsigned n;
/* don't skip the first entry */
if (h == ctx->hist)
return h;
/* need at least two entries */
if (!h->identical || !h->next || !h->next->identical)
return h;
/* don't skip the last entry */
for (n = 0; h->next && h->identical; h = h->next)
n++;
h->over = overlay_add(&ctx->hist_overlays, &ctx->aois,
NULL, ignore_click, h);
overlay_text(h->over, "<small>%u commits without changes</small>", n);
style.width = 0;
style.pad = 0;
style.bg = RGBA(1.0, 1.0, 1.0, 0.8);
overlay_style(h->over, &style);
return h;
}
/* ----- Input ------------------------------------------------------------- */
static bool history_click(void *user, int x, int y)
{
struct gui_ctx *ctx = user;
if (aoi_click(ctx->aois, x, y))
return 1;
hide_history(ctx);
return 1;
}
static bool history_hover_update(void *user, int x, int y)
{
struct gui_ctx *ctx = user;
return aoi_hover(ctx->aois, x, y);
}
static void history_drag_move(void *user, int dx, int dy)
{
struct gui_ctx *ctx = user;
ctx->hist_y_offset += dy;
redraw(ctx);
}
static void history_key(void *user, int x, int y, int keyval)
{
switch (keyval) {
case GDK_KEY_q:
gtk_main_quit();
}
}
static const struct input_ops history_input_ops = {
.click = history_click,
.hover_begin = history_hover_update,
.hover_update = history_hover_update,
.hover_click = history_click,
.drag_begin = input_accept,
.drag_move = history_drag_move,
.key = history_key,
};
/* ----- Invocation -------------------------------------------------------- */
void show_history(struct gui_ctx *ctx, enum selecting sel)
{
struct gui_hist *h = ctx->hist;
input_push(&history_input_ops, ctx);
ctx->showing_history = 1;
ctx->hist_y_offset = 0;
ctx->selecting = sel;
overlay_remove_all(&ctx->hist_overlays);
for (h = ctx->hist; h; h = h->next) {
h = skip_history(ctx, h);
h->over = overlay_add(&ctx->hist_overlays, &ctx->aois,
hover_history, click_history, h);
hover_history(h, 0);
set_history_style(h, 0);
}
redraw(ctx);
}