Add Recent Files menu option.
key (backtick/grave) or select button.
This commit is contained in:
nanner55
sorgelig
298
recent.cpp
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298
recent.cpp
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include <stdbool.h>
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#include <limits.h>
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#include <ctype.h>
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#include <dirent.h>
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#include <vector>
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#include <string>
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#include "hardware.h"
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#include "file_io.h"
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#include "user_io.h"
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#include "fpga_io.h"
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#include "miniz_zip.h"
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#include "osd.h"
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#include "recent.h"
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#include "support.h"
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#define RECENT_MAX 16
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struct recent_rec_t
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{
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char dir[1024];
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char name[256];
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};
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struct display_name_t
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{
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char name[256];
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};
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typedef std::vector<recent_rec_t> RecentVector;
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static RecentVector recents(RECENT_MAX);
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typedef std::vector<display_name_t> RecentDisplayNameVector;
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static RecentDisplayNameVector displaynames(RECENT_MAX);
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static int numlast = 0;
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static int iSelectedEntry = 0;
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static int iFirstEntry = 0;
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void recent_init()
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{
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recent_load();
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recent_scan(SCANF_INIT);
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}
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void recent_scan(int mode)
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{
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if (mode == SCANF_INIT)
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{
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iFirstEntry = 0;
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iSelectedEntry = 0;
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}
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else
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{
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if (!recent_available()) return;
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if (mode == SCANF_END)
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{
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iSelectedEntry = recent_available() - 1;
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iFirstEntry = iSelectedEntry - OsdGetSize() + 1;
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if (iFirstEntry < 0) iFirstEntry = 0;
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}
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else if (mode == SCANF_NEXT)
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{
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if (iSelectedEntry + 1 < recent_available()) // scroll within visible items
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{
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iSelectedEntry++;
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if (iSelectedEntry > iFirstEntry + OsdGetSize() - 1) iFirstEntry = iSelectedEntry - OsdGetSize() + 1;
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}
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}
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else if (mode == SCANF_PREV)
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{
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if (iSelectedEntry > 0) // scroll within visible items
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{
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iSelectedEntry--;
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if (iSelectedEntry < iFirstEntry) iFirstEntry = iSelectedEntry;
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}
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}
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else if (mode == SCANF_NEXT_PAGE)
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{
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if (iSelectedEntry < iFirstEntry + OsdGetSize() - 1)
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{
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iSelectedEntry = iFirstEntry + OsdGetSize() - 1;
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if (iSelectedEntry >= recent_available()) iSelectedEntry = recent_available() - 1;
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}
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else
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{
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iSelectedEntry += OsdGetSize();
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iFirstEntry += OsdGetSize();
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if (iSelectedEntry >= recent_available())
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{
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iSelectedEntry = recent_available() - 1;
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iFirstEntry = iSelectedEntry - OsdGetSize() + 1;
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if (iFirstEntry < 0) iFirstEntry = 0;
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}
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else if (iFirstEntry + OsdGetSize() > recent_available())
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{
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iFirstEntry = recent_available() - OsdGetSize();
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}
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}
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}
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else if (mode == SCANF_PREV_PAGE)
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{
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if (iSelectedEntry != iFirstEntry)
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{
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iSelectedEntry = iFirstEntry;
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}
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else
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{
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iFirstEntry -= OsdGetSize();
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if (iFirstEntry < 0) iFirstEntry = 0;
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iSelectedEntry = iFirstEntry;
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}
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}
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}
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}
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void recent_scroll_name()
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{
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// this function is called periodically when file selection window is displayed
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// it checks if predefined period of time has elapsed and scrolls the name if necessary
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int len;
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int max_len;
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static char name[256 + 4];
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// don't scroll if the file doesn't exist
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if (!FileExists(recent_path(recents[iSelectedEntry].dir, recents[iSelectedEntry].name))) return;
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name[0] = 32;
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strcpy(name + 1, displaynames[iSelectedEntry].name);
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len = strlen(name); // get name length
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max_len = 30;
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ScrollText(iSelectedEntry - iFirstEntry, name, 1, len, max_len, 1);
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}
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void recent_print()
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{
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int k;
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int len;
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static char s[256+4];
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ScrollReset();
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for (int i = 0; i < OsdGetSize(); i++)
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{
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char leftchar = 0;
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unsigned char d = 1;
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if (i < recent_available())
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{
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k = iFirstEntry + i;
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s[0] = 32;
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char* name = displaynames[k].name;
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strcpy(s + 1, name);
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len = strlen(s); // get name length
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s[len] = 0;
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if (len > 28)
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{
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len = 27; // trim display length if longer than 30 characters
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s[28] = 22;
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}
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s[29] = 0;
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if (!i && k) leftchar = 17;
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if ((i == OsdGetSize() - 1) && (k < recent_available() - 1)) leftchar = 16;
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// check if file exists
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d = FileExists(recent_path(recents[k].dir, recents[k].name)) ? 0 : 1;
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}
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else
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{
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memset(s, ' ', 32);
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}
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OsdWriteOffset(i, s, i == (iSelectedEntry - iFirstEntry) && recent_available(), d, 0, leftchar);
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}
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}
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int recent_available()
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{
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return numlast;
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}
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void recent_load()
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{
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// initialize recent to empty strings
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memset(recents.data(), 0, recents.size() * sizeof(recent_rec_t));
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// load the config file into memory
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FileLoadConfig(recent_create_config_name(), recents.data(), recents.size() * sizeof(recent_rec_t));
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for (numlast = 0; numlast < (int)recents.size() && strlen(recents[numlast].name); numlast++) {}
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// init display names to file names
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for (int i = 0; i < recent_available(); i++) memcpy(displaynames[i].name, recents[i].name, sizeof(displaynames[i].name));
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if (is_neogeo_core()) {
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for (int i = 0; i < recent_available(); i++) {
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// update display names for neogeo neo files
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char* altname = neogeo_get_altname(recents[i].dir, recents[i].name, recents[i].name);
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if (altname) strcpy(displaynames[i].name, altname);
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}
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}
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}
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void recent_save()
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{
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// store the config file to storage
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FileSaveConfig(recent_create_config_name(), recents.data(), recents.size() * sizeof(recent_rec_t));
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}
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int recent_select(char *dir, char *path)
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{
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// copy directory and file name over
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dir[0] = 0;
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path[0] = 0;
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if (strlen(recents[iSelectedEntry].name))
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{
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strcpy(dir, recents[iSelectedEntry].dir);
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strcpy(path, dir);
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strcat(path, "/");
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strcat(path, recents[iSelectedEntry].name);
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}
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if (!FileExists(path)) return 0;
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else return recent_available();
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}
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void recent_update(char* dir, char* path)
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{
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if (is_neogeo_core())
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{
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// only support neo files for now to simplify name parsing and locating files in recent files menu
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char* ext = strrchr(path, '.');
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if (!ext || strcmp(ext, ".neo")) return;
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}
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// separate the path into directory and filename
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char* name = strrchr(path, '/');
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if (name) name++; else name = path;
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// load the current state. this is necessary because we may have started a ROM from multiple sources
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recent_load();
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// update the selection
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int indexToErase = RECENT_MAX - 1;
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recent_rec_t rec;
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strcpy(rec.dir, dir);
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strcpy(rec.name, name);
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for (unsigned i = 0; i < recents.size(); i++)
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{
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if (!strcmp(recents[i].dir, dir) && !strcmp(recents[i].name, name))
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{
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indexToErase = i;
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break;
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}
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}
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recents.erase(recents.begin() + indexToErase);
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recents.insert(recents.begin(), rec);
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// write update to storage
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recent_save();
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}
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char* recent_create_config_name()
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{
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static char str[80];
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str[0] = 0;
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char* p = user_io_get_core_name();
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if (p[0])
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{
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strcpy(str, p);
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strcat(str, "_recent.CFG");
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}
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return str;
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}
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const char* recent_path(char* dir, char* name)
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{
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static std::string fullname;
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fullname = dir;
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fullname += '/';
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fullname += name;
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return fullname.c_str();
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}
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