From b369f37c6244b5d56742b56f745219fb2544efe2 Mon Sep 17 00:00:00 2001
From: Ian C <ianc@noddybox.co.uk>
Date: Fri, 16 Feb 2007 01:10:41 +0000
Subject: Some hi-res support.  Added new config page and averaging touchscreen
 reads. In process of writing file selector.

---
 source/gui.c | 428 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 427 insertions(+), 1 deletion(-)

(limited to 'source/gui.c')

diff --git a/source/gui.c b/source/gui.c
index 713ad02..7e55b97 100644
--- a/source/gui.c
+++ b/source/gui.c
@@ -20,10 +20,160 @@
    $Id$
 */
 
-#include <nds.h>
+#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		15
+#define FSEL_MAX_FILES		512
+
+#define FSEL_LIST_Y		12
+#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)
+    {
+	char *p;
+
+	p = strrchr(path,'/');
+
+	if (p && p!=path)
+	{
+	    *p = 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 == f1->is_dir)
+    {
+    	return strcmp(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 (strcmp(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
@@ -189,3 +339,279 @@ void GUI_Alert(int fatal, const char *text)
 	}
     }
 }
+
+
+void GUI_Config(void)
+{
+    int sel;
+    DS81_ConfigItem f;
+    bool done;
+    bool save;
+
+    sel = 0;
+    done = false;
+    save = false;
+
+    FB_Clear();
+
+    FB_Centre("Up/Down to select",140,FB_RGB(31,31,0),-1);
+    FB_Centre("A to toggle",150,FB_RGB(31,31,0),-1);
+    FB_Centre("Or use touchscreen",160,FB_RGB(31,31,0),-1);
+    FB_Centre("START to finish",170,FB_RGB(31,31,0),-1);
+
+#ifndef DS81_DISABLE_FAT
+    FB_Centre("SELECT to save to \\DS81.CFG",180,FB_RGB(31,31,0),-1);
+#endif
+
+    for(f=0;f<DS81_NUM_CONFIG_ITEMS;f++)
+    {
+	FB_Print(ConfigDesc(f),14,20+f*14,FB_RGB(31,31,31),-1);
+    }
+
+    while(!done)
+    {
+	uint32 key=0;
+
+	for(f=0;f<DS81_NUM_CONFIG_ITEMS;f++)
+	{
+	    FB_FillBox(2,20+f*14-1,10,10,
+			DS81_Config[f] ? FB_RGB(31,31,31):FB_RGB(0,0,0));
+
+	    FB_Box(2,20+f*14-1,10,10,FB_RGB(18,18,18));
+	}
+
+	FB_Box(0,20+sel*14-3,SCREEN_WIDTH-1,14,FB_RGB(18,18,31));
+
+	do
+	{
+	    swiWaitForVBlank();
+	} while(!(key=keysDownRepeat()));
+
+	FB_Box(0,20+sel*14-3,SCREEN_WIDTH-1,14,FB_RGB(0,0,0));
+
+	if (key & KEY_START)
+	{
+	    done=true;
+	}
+#ifndef DS81_DISABLE_FAT
+	else if (key & KEY_SELECT)
+	{
+	    done=true;
+	    save=true;
+	}
+#endif
+	else if (key & KEY_A)
+	{
+	    DS81_Config[sel] = !DS81_Config[sel];
+	}
+	else if ((key & KEY_UP) && sel)
+	{
+	    sel--;
+	}
+	else if ((key & KEY_DOWN) && sel<DS81_NUM_CONFIG_ITEMS-1)
+	{
+	    sel++;
+	}
+	else if (key & KEY_TOUCH)
+	{
+	    touchPosition tp = touchReadXY();
+	    int nsel;
+
+	    nsel = (tp.py-18)/14;
+
+	    if (nsel>=0 && nsel<DS81_NUM_CONFIG_ITEMS)
+	    {
+	    	sel = nsel;
+		DS81_Config[sel] = !DS81_Config[sel];
+	    }
+	}
+    }
+
+    if (save)
+    {
+	SaveConfig();
+    }
+}
+
+
+bool GUI_FileSelect(char pwd[], char selected_file[], const char *filter)
+{
+    int no;
+    int sel;
+    int top;
+    int bar_size;
+    double bar_step;
+    bool done;
+    bool ret;
+    int pen;
+    int paper;
+    int off;
+    int f;
+
+    CheckPath(pwd);
+
+    FB_Clear();
+
+    FB_printf(0,0,FB_RGB(0,0,0),FB_RGB(22,22,22),"%-31.31s",pwd);
+
+    no = LoadDir(pwd,filter);
+
+    sel = 0;
+    top = 0;
+    done = false;
+    ret = false;
+
+    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)
+		{
+		    pen = FB_RGB(0,0,0);
+		    paper = FB_RGB(31,31,31);
+		}
+		else
+		{
+		    pen = FB_RGB(31,31,31);
+		    paper = FB_RGB(0,0,0);
+		}
+
+		FB_printf(8,FSEL_LIST_Y+f*8,pen,paper,
+				"%-*s  %s",
+				    FSEL_FILENAME_LEN,
+				    fsel[off].name,
+				    fsel[off].is_dir ? "DIR" : "   ");
+	    }
+	    else
+	    {
+		FB_printf(8,FSEL_LIST_Y+f*8,FB_RGB(31,31,31),FB_RGB(0,0,0),
+			    "%-*s  %s",
+			    	FSEL_FILENAME_LEN,
+				off==0 ? "No Files!" : "",
+				"");
+	    }
+	}
+
+	FB_FillBox(240,FSEL_LIST_Y,16,FSEL_LIST_H,FB_RGB(10,10,10));
+	FB_FillBox(240,FSEL_LIST_Y+top*bar_step,16,bar_size,FB_RGB(31,31,31));
+
+	do
+	{
+	    swiWaitForVBlank();
+	} while(!(key=keysDownRepeat()));
+
+	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)
+	{
+	    if (fsel[sel].is_dir)
+	    {
+	    	AddPath(pwd,fsel[sel].name);
+
+		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);
+	    }
+	}
+	else if (key & KEY_START)
+	{
+	    done=true;
+	}
+    }
+
+    while (keysHeld());
+
+    return ret;
+}
-- 
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