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-rw-r--r--arm9/source/gui.c714
1 files changed, 714 insertions, 0 deletions
diff --git a/arm9/source/gui.c b/arm9/source/gui.c
new file mode 100644
index 0000000..11096d3
--- /dev/null
+++ b/arm9/source/gui.c
@@ -0,0 +1,714 @@
+/*
+ ds48 - Nintendo DS ZX Spectrum emulator.
+
+ Copyright (C) 2007 Ian Cowburn <ianc@noddybox.co.uk>
+
+ 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+ $Id$
+*/
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <nds.h>
+
+#include <sys/dir.h>
+
+#include "framebuffer.h"
+#include "config.h"
+
+
+/* ---------------------------------------- PRIVATE INTERFACES - PATH HANDLING
+*/
+#define FSEL_FILENAME_LEN 20
+#define FSEL_LINES 16
+#define FSEL_MAX_FILES 512
+
+#define FSEL_LIST_Y 10
+#define FSEL_LIST_H FSEL_LINES*8
+
+typedef struct
+{
+ char name[FSEL_FILENAME_LEN+1];
+ int is_dir;
+ int size;
+} FSEL_File;
+
+static FSEL_File fsel[FSEL_MAX_FILES];
+
+
+static void CheckPath(char *path)
+{
+ size_t l;
+
+ l = strlen(path);
+
+ if (l == 1)
+ {
+ path[0] = '/';
+ }
+ else
+ {
+ if (path[l-1] != '/')
+ {
+ path[l] = '/';
+ path[l+1] = 0;
+ }
+ }
+}
+
+
+static void AddPath(char *path, const char *dir)
+{
+ if (strcmp(dir,"..") == 0)
+ {
+ size_t l;
+
+ l = strlen(path);
+
+ if (l > 1)
+ {
+ path[--l] = 0;
+
+ while(l && path[l] != '/')
+ {
+ path[l--] = 0;
+ }
+ }
+ }
+ else
+ {
+ strcat(path,dir);
+ strcat(path,"/");
+ }
+}
+
+
+
+
+static int SortFiles(const void *a, const void *b)
+{
+ const FSEL_File *f1;
+ const FSEL_File *f2;
+
+ f1 = (const FSEL_File *)a;
+ f2 = (const FSEL_File *)b;
+
+ if (f1->is_dir == f2->is_dir)
+ {
+ return strcasecmp(f1->name, f2->name);
+ }
+ else if (f1->is_dir)
+ {
+ return -1;
+ }
+ else
+ {
+ return 1;
+ }
+}
+
+
+static int ValidFilename(const char *name, int is_dir, const char *filter)
+{
+ size_t l;
+ size_t f;
+
+ l = strlen(name);
+
+ if (l > FSEL_FILENAME_LEN)
+ return 0;
+
+ if (strcmp(name,".") == 0)
+ return 0;
+
+ if (is_dir || !filter)
+ return 1;
+
+ f = strlen(filter);
+
+ if (l > f)
+ {
+ if (strcasecmp(name+l-f,filter) == 0)
+ {
+ return 1;
+ }
+ }
+
+ return 0;
+}
+
+
+static int LoadDir(const char *path, const char *filter)
+{
+ DIR_ITER *dir;
+ struct stat st;
+ char name[FILENAME_MAX];
+ int no = 0;
+
+ if ((dir = diropen(path)))
+ {
+ while(no < FSEL_MAX_FILES && dirnext(dir,name,&st) == 0)
+ {
+ if (ValidFilename(name, (st.st_mode & S_IFDIR), filter))
+ {
+ strcpy(fsel[no].name,name);
+ fsel[no].is_dir = (st.st_mode & S_IFDIR);
+ fsel[no].size = (int)st.st_size;
+ no++;
+ }
+ }
+
+ dirclose(dir);
+
+ qsort(fsel,no,sizeof fsel[0],SortFiles);
+ }
+
+ return no;
+}
+
+
+/* ---------------------------------------- PUBLIC INTERFACES
+*/
+int GUI_Menu(const char *opts[])
+{
+ int x,y;
+ int h;
+ int w;
+ int no;
+ int sel;
+ int f;
+ int done;
+ int defer;
+
+ w=0;
+ h=0;
+ sel=0;
+ done=FALSE;
+ defer=FALSE;
+
+ for(no=0;opts[no];no++)
+ {
+ h+=16;
+
+ if (strlen(opts[no])>w)
+ {
+ w=strlen(opts[no]);
+ }
+ }
+
+ w=w*8+16;
+
+ x=SCREEN_WIDTH/2-w/2;
+ y=SCREEN_HEIGHT/2-h/2;
+
+ while(!done)
+ {
+ uint32 key=0;
+
+ FB_FillBox(x,y,w,h,COL_BLACK);
+ FB_Box(x,y,w,h,COL_WHITE);
+ FB_FillBox(x+1,y+sel*16+1,w-2,14,COL_GUISELECT);
+
+ for(f=0;f<no;f++)
+ {
+ FB_Centre(opts[f],y+4+f*16,COL_WHITE,COL_TRANSPARENT);
+ }
+
+ do
+ {
+ swiWaitForVBlank();
+ } while(!defer && !(key=keysDownRepeat()));
+
+ if (defer)
+ {
+ do
+ {
+ swiWaitForVBlank();
+ } while (keysHeld()&KEY_TOUCH);
+ done=TRUE;
+ }
+ else
+ {
+ if (key & (KEY_A|KEY_B|KEY_X|KEY_Y))
+ {
+ done=TRUE;
+ }
+ else if ((key & KEY_UP) && sel)
+ {
+ sel--;
+ }
+ else if ((key & KEY_DOWN) && sel<no-1)
+ {
+ sel++;
+ }
+ else if (key & KEY_TOUCH)
+ {
+ touchPosition tp=touchReadXY();
+
+ if (tp.px>=x && tp.px<(w+w) && tp.py>=y && tp.py<(y+h))
+ {
+ defer=TRUE;
+ sel=(tp.py-y)/16;
+ }
+ }
+ }
+ }
+
+ return sel;
+}
+
+
+void GUI_Alert(int fatal, const char *text)
+{
+ char line[80];
+ int h;
+ const char *p;
+ char *d;
+
+ h=40;
+ p=text;
+
+ while(*p)
+ {
+ if (*p++=='\n')
+ {
+ h+=8;
+ }
+ }
+
+ FB_FillBox(0,0,SCREEN_WIDTH,h,COL_BLACK);
+ FB_Box(1,1,SCREEN_WIDTH-2,h-2,COL_WHITE);
+
+ p=text;
+ h=4;
+ d=line;
+
+ while(*p)
+ {
+ if (*p=='\n')
+ {
+ *d++=0;
+ p++;
+ FB_Centre(line,h,COL_WHITE,COL_TRANSPARENT);
+ h+=8;
+ d=line;
+ }
+ else
+ {
+ *d++=*p++;
+ }
+ }
+
+ if (d>line)
+ {
+ *d=0;
+ FB_Centre(line,h,COL_WHITE,COL_TRANSPARENT);
+ h+=8;
+ }
+
+ if (!fatal)
+ {
+ FB_Centre("PRESS ANY BUTTON OR SCREEN",h+16,COL_YELLOW,COL_TRANSPARENT);
+
+ while(!keysDown())
+ {
+ swiWaitForVBlank();
+ }
+
+ while(keysHeld())
+ {
+ swiWaitForVBlank();
+ }
+ }
+ else
+ {
+ FB_Centre("PLEASE RESET YOUR CONSOLE",h+16,COL_YELLOW,COL_TRANSPARENT);
+
+ while(1)
+ {
+ swiWaitForVBlank();
+ }
+ }
+}
+
+
+void GUI_Config(void)
+{
+ int sel;
+ DS48_ConfigItem f;
+ int done;
+ int save;
+
+ sel = 0;
+ done = FALSE;
+ save = FALSE;
+
+ FB_Clear();
+
+ FB_Centre("Up/Down to select",140,COL_YELLOW,COL_TRANSPARENT);
+ FB_Centre("A to toggle",150,COL_YELLOW,COL_TRANSPARENT);
+ FB_Centre("Or use touchscreen",160,COL_YELLOW,COL_TRANSPARENT);
+ FB_Centre("START to finish",170,COL_YELLOW,COL_TRANSPARENT);
+
+#ifndef DS48_DISABLE_FAT
+ FB_Centre("SELECT to finish and save",180,COL_YELLOW,COL_TRANSPARENT);
+#endif
+
+ for(f=0;f<DS48_NUM_CONFIG_ITEMS;f++)
+ {
+ FB_Print(ConfigDesc(f),14,20+f*14,COL_WHITE,COL_TRANSPARENT);
+ }
+
+ while(!done)
+ {
+ uint32 key=0;
+
+ for(f=0;f<DS48_NUM_CONFIG_ITEMS;f++)
+ {
+ FB_FillBox(2,20+f*14-1,10,10,
+ DS48_Config[f] ? COL_WHITE : COL_BLACK);
+
+ FB_Box(2,20+f*14-1,10,10,COL_GREY);
+ }
+
+ FB_Box(0,20+sel*14-3,SCREEN_WIDTH-1,14,COL_GUISELECT);
+
+ do
+ {
+ swiWaitForVBlank();
+ } while(!(key=keysDownRepeat()));
+
+ FB_Box(0,20+sel*14-3,SCREEN_WIDTH-1,14,COL_BLACK);
+
+ if (key & KEY_START)
+ {
+ done=TRUE;
+ }
+#ifndef DS48_DISABLE_FAT
+ else if (key & KEY_SELECT)
+ {
+ done=TRUE;
+ save=TRUE;
+ }
+#endif
+ else if (key & KEY_A)
+ {
+ DS48_Config[sel] = !DS48_Config[sel];
+ }
+ else if ((key & KEY_UP) && sel)
+ {
+ sel--;
+ }
+ else if ((key & KEY_DOWN) && sel<DS48_NUM_CONFIG_ITEMS-1)
+ {
+ sel++;
+ }
+ else if (key & KEY_TOUCH)
+ {
+ touchPosition tp = touchReadXY();
+ int nsel;
+
+ nsel = (tp.py-18)/14;
+
+ if (nsel>=0 && nsel<DS48_NUM_CONFIG_ITEMS)
+ {
+ sel = nsel;
+ DS48_Config[sel] = !DS48_Config[sel];
+ }
+ }
+ }
+
+ if (save)
+ {
+ SaveConfig();
+ }
+}
+
+
+int GUI_FileSelect(char pwd[], char selected_file[], const char *filter)
+{
+ int no;
+ int sel;
+ int top;
+ int bar_size;
+ double bar_step;
+ int done;
+ int ret;
+ FB_Colour paper;
+ int off;
+ int f;
+ int drag;
+ int drag_start;
+
+ CheckPath(pwd);
+
+ FB_Clear();
+
+ FB_printf(0,0,COL_BLACK,COL_LIGHTGREY,"%-32.32s",pwd);
+
+ FB_Centre("Use pad and A to select",140,COL_YELLOW,COL_TRANSPARENT);
+ FB_Centre("L and R to page up/down",150,COL_YELLOW,COL_TRANSPARENT);
+ FB_Centre("Or use touchscreen",160,COL_YELLOW,COL_TRANSPARENT);
+ FB_Centre("B to cancel",170,COL_YELLOW,COL_TRANSPARENT);
+
+ no = LoadDir(pwd,filter);
+
+ sel = 0;
+ top = 0;
+ done = FALSE;
+ ret = FALSE;
+ drag = FALSE;
+ drag_start = 0;
+
+ if (no<=FSEL_LINES)
+ {
+ bar_step = 0;
+ bar_size = FSEL_LIST_H;
+ }
+ else
+ {
+ bar_step = FSEL_LIST_H/(double)no;
+ bar_size = bar_step*FSEL_LINES;
+ }
+
+ while(!done)
+ {
+ uint32 key=0;
+
+ for (f=0;f<FSEL_LINES;f++)
+ {
+ off = f + top;
+
+ if (off<no)
+ {
+ if (off == sel)
+ {
+ paper = COL_GUISELECT;
+ }
+ else
+ {
+ paper = COL_BLACK;
+ }
+
+ FB_printf(8,FSEL_LIST_Y+f*8,COL_WHITE,paper,
+ "%-*s %s",
+ FSEL_FILENAME_LEN,
+ fsel[off].name,
+ fsel[off].is_dir ? "DIR" : " ");
+ }
+ else
+ {
+ FB_printf(8,FSEL_LIST_Y+f*8,COL_WHITE,COL_BLACK,
+ "%-*s %s",
+ FSEL_FILENAME_LEN,
+ off==0 ? "No Files!" : "",
+ " ");
+ }
+ }
+
+ FB_FillBox(240,FSEL_LIST_Y,16,FSEL_LIST_H,COL_DARKGREY);
+ FB_FillBox(240,FSEL_LIST_Y+top*bar_step,16,bar_size,COL_WHITE);
+
+ if (drag)
+ {
+ touchPosition tp = {0};
+ int diff = 0;
+
+ while (((key=keysHeld()) & KEY_TOUCH) && diff == 0)
+ {
+ tp = touchReadXY();
+ diff = tp.py - drag_start;
+ swiWaitForVBlank();
+ }
+
+ if (key & KEY_TOUCH)
+ {
+ int new_top;
+
+ new_top = top + diff / bar_step;
+
+ if (new_top > (no - FSEL_LINES))
+ {
+ new_top = no - FSEL_LINES;
+ }
+
+ if (new_top < 0)
+ {
+ new_top = 0;
+ }
+
+ if (new_top != top)
+ {
+ top = new_top;
+ sel = top;
+ drag_start = tp.py;
+ }
+ }
+ else
+ {
+ drag = FALSE;
+ }
+ }
+
+ if (!drag)
+ {
+ int activate = FALSE;
+
+ do
+ {
+ swiWaitForVBlank();
+ } while(!(key=keysDownRepeat()));
+
+ if (key & KEY_TOUCH)
+ {
+ touchPosition tp;
+
+ tp = touchReadXY();
+
+ if (tp.py >= FSEL_LIST_Y && tp.py <= (FSEL_LIST_Y+FSEL_LIST_H))
+ {
+ if (tp.px > 239)
+ {
+ drag = TRUE;
+ drag_start = tp.py;
+ }
+ else
+ {
+ int new_sel;
+
+ new_sel = top + (tp.py - FSEL_LIST_Y)/8;
+
+ if (new_sel < no)
+ {
+ if (new_sel == sel)
+ {
+ activate = TRUE;
+ }
+ else
+ {
+ sel = new_sel;
+ }
+ }
+ }
+ }
+ }
+ else if (key & KEY_UP)
+ {
+ if (sel)
+ {
+ sel--;
+
+ if (sel<top)
+ {
+ top--;
+ }
+ }
+ }
+ else if (key & KEY_DOWN)
+ {
+ if (sel < (no-1))
+ {
+ sel++;
+
+ if (sel >= (top+FSEL_LINES))
+ {
+ top++;
+ }
+ }
+ }
+ else if (key & KEY_L)
+ {
+ if (sel)
+ {
+ sel-=FSEL_LINES;
+
+ if (sel < 0)
+ {
+ sel = 0;
+ }
+
+ top = sel;
+ }
+ }
+ else if (key & KEY_R)
+ {
+ if (sel < (no-1))
+ {
+ sel+=FSEL_LINES;
+
+ if (sel > (no-1))
+ {
+ sel = no-1;
+ }
+
+ top = sel - FSEL_LINES + 1;
+
+ if (top < 0)
+ {
+ top = 0;
+ }
+ }
+ }
+ else if (key & KEY_A)
+ {
+ activate = TRUE;
+ }
+ else if (key & KEY_B)
+ {
+ done = TRUE;
+ }
+
+ if (activate)
+ {
+ if (fsel[sel].is_dir)
+ {
+ AddPath(pwd,fsel[sel].name);
+
+ FB_printf(0,0,COL_BLACK,COL_LIGHTGREY,"%-32.32s",pwd);
+
+ no = LoadDir(pwd,filter);
+
+ sel = 0;
+ top = 0;
+
+ if (no<=FSEL_LINES)
+ {
+ bar_step = 0;
+ bar_size = FSEL_LIST_H;
+ }
+ else
+ {
+ bar_step = FSEL_LIST_H/(double)no;
+ bar_size = bar_step*FSEL_LINES;
+ }
+ }
+ else
+ {
+ done = TRUE;
+ ret = TRUE;
+
+ strcpy(selected_file,pwd);
+ strcat(selected_file,fsel[sel].name);
+ }
+ }
+ }
+ }
+
+ while (keysHeld());
+
+ return ret;
+}
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