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/*
* COPYRIGHT
*
* pcb-rnd, interactive printed circuit board design
* Copyright (C) 2018 Tibor 'Igor2' Palinkas
*
* 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Contact:
* Project page: http://repo.hu/projects/pcb-rnd
* lead developer: http://repo.hu/projects/pcb-rnd/contact.html
* mailing list: pcb-rnd (at) list.repo.hu (send "subscribe")
*/
#include <libuundo/uundo.h>
#include "event.h"
#include "undo.h"
const char *dlg_undo_cookie = "undo dialog";
typedef struct{
RND_DAD_DECL_NOINIT(dlg)
int wlist;
long serial; /* last seen undo serial, for updating the dialog on change */
int active; /* already open - allow only one instance */
} undo_ctx_t;
undo_ctx_t undo_ctx;
extern uundo_list_t pcb_uundo;
static void undo_close_cb(void *caller_data, rnd_hid_attr_ev_t ev)
{
undo_ctx_t *ctx = caller_data;
RND_DAD_FREE(ctx->dlg);
memset(ctx, 0, sizeof(undo_ctx_t));
}
static void cb_undo(void *hid_ctx, void *caller_data, rnd_hid_attribute_t *attr)
{
pcb_undo(rnd_true);
}
static void cb_redo(void *hid_ctx, void *caller_data, rnd_hid_attribute_t *attr)
{
pcb_redo(rnd_true);
}
static void cb_clear(void *hid_ctx, void *caller_data, rnd_hid_attribute_t *attr)
{
pcb_undo_clear_list(rnd_true);
}
static void undo_data2dlg(undo_ctx_t *ctx)
{
rnd_hid_attribute_t *attr;
rnd_hid_tree_t *tree;
rnd_hid_row_t *r;
char *cell[4], *cursor_path = NULL;
uundo_item_t *i;
char *payload, buff[8192], mark[2], ser[64];
attr = &ctx->dlg[ctx->wlist];
tree = attr->wdata;
/* remember cursor */
r = rnd_dad_tree_get_selected(attr);
if (r != NULL)
cursor_path = rnd_strdup(r->cell[0]);
/* remove existing items */
rnd_dad_tree_clear(tree);
mark[1] = '\0';
cell[3] = NULL;
for(i = pcb_uundo.head; i != NULL; i = i->next) {
payload = "<unknown>";
if (i->oper->item_print != NULL) {
i->oper->item_print(i->udata, buff, sizeof(buff));
payload = buff;
}
mark[0] = '\0';
if ((i == pcb_uundo.head) && (i == pcb_uundo.tail))
mark[0] = '*';
else if (i == pcb_uundo.head)
mark[0] = 'h';
else if (i == pcb_uundo.tail)
mark[0] = 't';
sprintf(ser, "%ld", (long)i->serial);
cell[0] = rnd_strdup(ser);
cell[1] = rnd_strdup(mark);
cell[2] = rnd_strdup(payload);
rnd_dad_tree_append(attr, NULL, cell);
}
/* restore cursor */
if (cursor_path != NULL) {
rnd_hid_attr_val_t hv;
hv.str = cursor_path;
rnd_gui->attr_dlg_set_value(ctx->dlg_hid_ctx, ctx->wlist, &hv);
free(cursor_path);
}
}
static void pcb_dlg_undo(void)
{
static const char *hdr[] = {"serial", "flg", "operation", NULL};
rnd_hid_dad_buttons_t clbtn[] = {{"Close", 0}, {NULL, 0}};
if (undo_ctx.active)
return; /* do not open another */
RND_DAD_BEGIN_VBOX(undo_ctx.dlg);
RND_DAD_COMPFLAG(undo_ctx.dlg, RND_HATF_EXPFILL);
RND_DAD_TREE(undo_ctx.dlg, 3, 0, hdr);
RND_DAD_COMPFLAG(undo_ctx.dlg, RND_HATF_EXPFILL | RND_HATF_SCROLL);
undo_ctx.wlist = RND_DAD_CURRENT(undo_ctx.dlg);
RND_DAD_BEGIN_HBOX(undo_ctx.dlg);
RND_DAD_BUTTON(undo_ctx.dlg, "Undo");
RND_DAD_CHANGE_CB(undo_ctx.dlg, cb_undo);
RND_DAD_BUTTON(undo_ctx.dlg, "Redo");
RND_DAD_CHANGE_CB(undo_ctx.dlg, cb_redo);
RND_DAD_BUTTON(undo_ctx.dlg, "Clear");
RND_DAD_CHANGE_CB(undo_ctx.dlg, cb_clear);
RND_DAD_END(undo_ctx.dlg);
RND_DAD_BUTTON_CLOSES(undo_ctx.dlg, clbtn);
RND_DAD_END(undo_ctx.dlg);
/* set up the context */
undo_ctx.active = 1;
RND_DAD_DEFSIZE(undo_ctx.dlg, 300, 400);
RND_DAD_NEW("undo", undo_ctx.dlg, "pcb-rnd undo list", &undo_ctx, rnd_false, undo_close_cb);
undo_data2dlg(&undo_ctx);
}
static const char pcb_acts_UndoDialog[] = "UndoDialog()\n";
static const char pcb_acth_UndoDialog[] = "Open the undo dialog.";
static fgw_error_t pcb_act_UndoDialog(fgw_arg_t *res, int argc, fgw_arg_t *argv)
{
pcb_dlg_undo();
RND_ACT_IRES(0);
return 0;
}
/* update the dialog after an undo operation */
static void pcb_dlg_undo_ev(rnd_hidlib_t *hidlib, void *user_data, int argc, rnd_event_arg_t argv[])
{
undo_ctx_t *ctx = user_data;
if (!ctx->active)
return;
undo_data2dlg(ctx);
}
/* Check if the serial has changed and update the dialog if so */
static void pcb_dlg_undo_ev_chk(rnd_hidlib_t *hidlib, void *user_data, int argc, rnd_event_arg_t argv[])
{
undo_ctx_t *ctx = user_data;
if (!ctx->active)
return;
if (ctx->serial != pcb_uundo.serial) {
undo_data2dlg(ctx);
ctx->serial = pcb_uundo.serial;
}
}
static void pcb_dlg_undo_init(void)
{
rnd_event_bind(PCB_EVENT_UNDO_POST, pcb_dlg_undo_ev, &undo_ctx, dlg_undo_cookie);
rnd_event_bind(RND_EVENT_USER_INPUT_POST, pcb_dlg_undo_ev_chk, &undo_ctx, dlg_undo_cookie);
}
static void pcb_dlg_undo_uninit(void)
{
rnd_event_unbind_allcookie(dlg_undo_cookie);
}
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