From cefb6882dc4f67c85dc3a54e6e7ba8ad5898463d Mon Sep 17 00:00:00 2001
From: Ian C <ianc@noddybox.co.uk>
Date: Wed, 21 Feb 2007 01:13:20 +0000
Subject: File selector not so annoying with the touchscreen.

---
 source/gui.c | 243 ++++++++++++++++++++++++++++++++++++++++++-----------------
 1 file changed, 172 insertions(+), 71 deletions(-)

(limited to 'source/gui.c')

diff --git a/source/gui.c b/source/gui.c
index 7e55b97..92f6836 100644
--- a/source/gui.c
+++ b/source/gui.c
@@ -34,10 +34,10 @@
 /* ---------------------------------------- PRIVATE INTERFACES - PATH HANDLING
 */
 #define FSEL_FILENAME_LEN	20
-#define FSEL_LINES		15
+#define FSEL_LINES		16
 #define FSEL_MAX_FILES		512
 
-#define FSEL_LIST_Y		12
+#define FSEL_LIST_Y		10
 #define FSEL_LIST_H		FSEL_LINES*8
 
 typedef struct
@@ -75,13 +75,18 @@ static void AddPath(char *path, const char *dir)
 {
     if (strcmp(dir,"..") == 0)
     {
-	char *p;
+    	size_t l;
 
-	p = strrchr(path,'/');
+	l = strlen(path);
 
-	if (p && p!=path)
+	if (l > 1)
 	{
-	    *p = 0;
+	    path[--l] = 0;
+
+	    while(l && path[l] != '/')
+	    {
+	    	path[l--] = 0;
+	    }
 	}
     }
     else
@@ -102,7 +107,7 @@ static int SortFiles(const void *a, const void *b)
     f1 = (const FSEL_File *)a;
     f2 = (const FSEL_File *)b;
 
-    if (f1->is_dir == f1->is_dir)
+    if (f1->is_dir == f2->is_dir)
     {
     	return strcmp(f1->name, f2->name);
     }
@@ -360,7 +365,7 @@ void GUI_Config(void)
     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);
+    FB_Centre("SELECT to finish and save",180,FB_RGB(31,31,0),-1);
 #endif
 
     for(f=0;f<DS81_NUM_CONFIG_ITEMS;f++)
@@ -447,12 +452,19 @@ bool GUI_FileSelect(char pwd[], char selected_file[], const char *filter)
     int paper;
     int off;
     int f;
+    bool drag;
+    int drag_start;
 
     CheckPath(pwd);
 
     FB_Clear();
 
-    FB_printf(0,0,FB_RGB(0,0,0),FB_RGB(22,22,22),"%-31.31s",pwd);
+    FB_printf(0,0,FB_RGB(0,0,0),FB_RGB(22,22,22),"%-32.32s",pwd);
+
+    FB_Centre("Use pad and A to select",140,FB_RGB(31,31,0),-1);
+    FB_Centre("L and R to page up/down",150,FB_RGB(31,31,0),-1);
+    FB_Centre("Or use touchscreen",160,FB_RGB(31,31,0),-1);
+    FB_Centre("B to cancel",170,FB_RGB(31,31,0),-1);
 
     no = LoadDir(pwd,filter);
 
@@ -460,6 +472,8 @@ bool GUI_FileSelect(char pwd[], char selected_file[], const char *filter)
     top = 0;
     done = false;
     ret = false;
+    drag = false;
+    drag_start = 0;
 
     if (no<=FSEL_LINES)
     {
@@ -505,110 +519,197 @@ bool GUI_FileSelect(char pwd[], char selected_file[], const char *filter)
 			    "%-*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
+	if (drag)
 	{
-	    swiWaitForVBlank();
-	} while(!(key=keysDownRepeat()));
+	    touchPosition tp = {0};
+	    int diff = 0;
 
-	if (key & KEY_UP)
-	{
-	    if (sel)
+	    while (((key=keysHeld()) & KEY_TOUCH) && diff == 0)
 	    {
-	    	sel--;
+		tp = touchReadXY();
+		diff = tp.py - drag_start;
+		swiWaitForVBlank();
+	    }
+
+	    if (key & KEY_TOUCH)
+	    {
+		int new_top;
 
-		if (sel<top)
+		new_top = top + diff / bar_step;
+
+		if (new_top > (no - FSEL_LINES))
 		{
-		    top--;
+		    new_top = no - FSEL_LINES;
 		}
-	    }
-	}
-	else if (key & KEY_DOWN)
-	{
-	    if (sel < (no-1))
-	    {
-	    	sel++;
 
-		if (sel >= (top+FSEL_LINES))
+		if (new_top < 0)
 		{
-		    top++;
+		    new_top = 0;
 		}
+
+		if (new_top != top)
+		{
+		    top = new_top;
+		    sel = top;
+		    drag_start = tp.py;
+		}
+	    }
+	    else
+	    {
+	    	drag = false;
 	    }
 	}
-	else if (key & KEY_L)
+
+	if (!drag)
 	{
-	    if (sel)
+	    bool activate = false;
+
+	    do
 	    {
-	    	sel-=FSEL_LINES;
+		swiWaitForVBlank();
+	    } while(!(key=keysDownRepeat()));
 
-		if (sel < 0)
+	    if (key & KEY_TOUCH)
+	    {
+		touchPosition tp;
+
+		tp = touchReadXY();
+
+	    	if (tp.py >= FSEL_LIST_Y && tp.py <= (FSEL_LIST_Y+FSEL_LIST_H))
 		{
-		    sel = 0;
+		    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;
+			    }
+			}
+		    }
 		}
-
-		top = sel;
 	    }
-	}
-	else if (key & KEY_R)
-	{
-	    if (sel < (no-1))
+	    else if (key & KEY_UP)
 	    {
-	    	sel+=FSEL_LINES;
+		if (sel)
+		{
+		    sel--;
 
-		if (sel > (no-1))
+		    if (sel<top)
+		    {
+			top--;
+		    }
+		}
+	    }
+	    else if (key & KEY_DOWN)
+	    {
+		if (sel < (no-1))
 		{
-		    sel = no-1;
+		    sel++;
+
+		    if (sel >= (top+FSEL_LINES))
+		    {
+			top++;
+		    }
 		}
+	    }
+	    else if (key & KEY_L)
+	    {
+		if (sel)
+		{
+		    sel-=FSEL_LINES;
 
-		top = sel - FSEL_LINES + 1;
+		    if (sel < 0)
+		    {
+			sel = 0;
+		    }
 
-		if (top < 0)
-		{
-		    top = 0;
+		    top = sel;
 		}
 	    }
-	}
-	else if (key & KEY_A)
-	{
-	    if (fsel[sel].is_dir)
+	    else if (key & KEY_R)
 	    {
-	    	AddPath(pwd,fsel[sel].name);
+		if (sel < (no-1))
+		{
+		    sel+=FSEL_LINES;
+
+		    if (sel > (no-1))
+		    {
+			sel = no-1;
+		    }
 
-		no = LoadDir(pwd,filter);
+		    top = sel - FSEL_LINES + 1;
 
-		sel = 0;
-		top = 0;
+		    if (top < 0)
+		    {
+			top = 0;
+		    }
+		}
+	    }
+	    else if (key & KEY_A)
+	    {
+	    	activate = true;
+	    }
+	    else if (key & KEY_B)
+	    {
+		done = true;
+	    }
 
-		if (no<=FSEL_LINES)
+	    if (activate)
+	    {
+		if (fsel[sel].is_dir)
 		{
-		    bar_step = 0;
-		    bar_size = FSEL_LIST_H;
+		    AddPath(pwd,fsel[sel].name);
+
+		    FB_printf(0,0,FB_RGB(0,0,0),FB_RGB(22,22,22),
+		    		"%-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
 		{
-		    bar_step = FSEL_LIST_H/(double)no;
-		    bar_size = bar_step*FSEL_LINES;
-		}
-	    }
-	    else
-	    {
-	    	done = true;
-		ret = true;
+		    done = true;
+		    ret = true;
 
-		strcpy(selected_file,pwd);
-		strcat(selected_file,fsel[sel].name);
+		    strcpy(selected_file,pwd);
+		    strcat(selected_file,fsel[sel].name);
+		}
 	    }
 	}
-	else if (key & KEY_START)
-	{
-	    done=true;
-	}
     }
 
     while (keysHeld());
-- 
cgit v1.2.3