Added virtual keyboard for text input, loosely based on John Wood's code

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@2928 a1c6a512-1295-4272-9138-f99709370657

3 files changed, 347 insertions, 0 deletions

diff --git a/apps/keyboard.h b/apps/keyboard.h
new file mode 100644
index 0000000..fa1e11e
--- /dev/null
+++ b/apps/keyboard.h
@@ -0,0 +1,24 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Björn Stenberg
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#ifndef _KEYBOARD_H
+#define _KEYBOARD_H
+
+int kbd_input(char* buffer, int buflen);
+
+#endif
diff --git a/apps/player/keyboard.c b/apps/player/keyboard.c
new file mode 100644
index 0000000..be0e43b
--- /dev/null
+++ b/apps/player/keyboard.c
@@ -0,0 +1,117 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Björn Stenberg
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "lcd.h"
+#include "button.h"
+#include "kernel.h"
+#include "version.h"
+#include "debug_menu.h"
+#include "sprintf.h"
+#include <string.h>
+
+#define KEYBOARD_PAGES 4
+
+static char* kbd_setupkeys(int page)
+{
+    static char* lines[] = {
+        "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
+        "abcdefghijklmnopqrstuvwxyz",
+        "01234567890!@#$%&/(){}[]<>",
+        "+-*_.,:;!?'"
+    };
+
+    return lines[page];
+}
+
+int kbd_input(char* text, int buflen)
+{
+    bool done = false;
+    int page=0, x=0;
+    char* line = kbd_setupkeys(page);
+    int linelen = strlen(line);
+
+    while(!done)
+    {
+        int i;
+        int len = strlen(text);
+
+        lcd_clear_display();
+
+        /* draw chars */
+        for (i=0; i < 11; i++)
+            lcd_putc(i, 1, line[i+x]);
+
+        /* write out the text */
+        if (len <= 11) {
+            /* if we have enough room */
+            lcd_puts(0, 0, text);
+        }
+        else {
+            /* if we don't have enough room, write out the last bit only */
+            lcd_putc(0, 0, '<');
+            lcd_puts(1, 0, text + len - 10);
+        }
+        lcd_update();
+
+        switch ( button_get(true) ) {
+
+        case BUTTON_MENU:
+            /* Page */
+            if (++page == KEYBOARD_PAGES)
+                page = 0;
+            line = kbd_setupkeys(page);
+            linelen = strlen(line);
+            break;
+
+        case BUTTON_RIGHT:
+            if (x < linelen - 1) 
+                x++; 
+            else 
+                x = 0;
+            break;
+
+        case BUTTON_LEFT:
+            if (x)
+                x--;
+            else
+                x = linelen - 1;
+            break;
+
+        case BUTTON_STOP:
+            /* backspace */
+            if (len)
+                text[len-1] = 0;
+            break;
+
+        case BUTTON_ON:
+            /* F2 accepts what was entered and continues */
+            done = true;
+            break;
+
+        case BUTTON_PLAY:
+            /* PLAY inserts the selected char */
+            if (len<buflen)
+            {
+                text[len] = line[x];
+                text[len+1] = 0;
+            }
+            break;
+        }
+    }
+    return 0;
+}
diff --git a/apps/recorder/keyboard.c b/apps/recorder/keyboard.c
new file mode 100644
index 0000000..431bfb6
--- /dev/null
+++ b/apps/recorder/keyboard.c
@@ -0,0 +1,206 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 by Björn Stenberg
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+#include "lcd.h"
+#include "button.h"
+#include "kernel.h"
+#include "version.h"
+#include "debug_menu.h"
+#include "sprintf.h"
+#include <string.h>
+
+#include "bmp.h"
+#include "icons.h"
+#include "font.h"
+
+#define KEYBOARD_LINES 4
+#define KEYBOARD_PAGES 3
+
+static void kbd_setupkeys(char* line[KEYBOARD_LINES], int page)
+{
+    switch (page) {
+    case 0:
+        line[0] = "ABCDEFG !?\" @#$%+'";
+        line[1] = "HIJKLMN 789 &_()-`";
+        line[2] = "OPQRSTU 456 §|{}/<";
+        line[3] = "VWXYZ.,0123 ~=[]*>";
+        break;
+
+    case 1:
+        line[0] = "abcdefg ¢£¤¥¦§©®¬";
+        line[1] = "hijklmn «»°ºª¹²³¶";
+        line[2] = "opqrsty ¯±×÷¡¿µ·¨";
+        line[3] = "vwxyz   ¼½¾      ";
+        break;
+
+    case 2:
+        line[0] = "ÀÁÂÃÄÅÆ ÌÍÎÏ ÈÉÊË";
+        line[1] = "àáâãäåæ ìíîï èéêë";
+        line[2] = "ÓÒÔÕÖØ ÇÐÞÝß ÙÚÛÜ";
+        line[3] = "òóôõöø çðþýÿ ùúûü";
+        break;
+    }
+}
+
+static void kbd_draw_statusbar_button(int num, char* caption, int y, int fw)
+{
+    int x, x2, tw, cx;
+    x = num*(LCD_WIDTH/3);
+    x2 = (num+1)*(LCD_WIDTH/3);
+    tw = fw * strlen(caption);
+    cx = x2 - x;
+    /* center the text */
+    lcd_putsxy((x + (cx/2)) - (tw/2), y, caption);
+    lcd_invertrect(x, y - 1, (x2-x)-1, LCD_HEIGHT-y+1);
+}
+
+int kbd_input(char* text, int buflen)
+{
+    bool done = false;
+    int page = 0;
+
+    int font_w = 0, font_h = 0, i;
+    int x = 0, y = 0;
+    int main_x, main_y, max_chars, margin;
+    int status_y1, status_y2, curpos;
+    int len;
+    char* line[KEYBOARD_LINES]; 
+
+    char c = 0;
+    struct font* font = font_get(FONT_SYSFIXED);
+
+    font_w = font->maxwidth;
+    font_h = font->height;
+
+    margin = 3;
+    main_y = (KEYBOARD_LINES + 1) * font_h + margin;
+    main_x = 0;
+    status_y1 = LCD_HEIGHT - font_h;
+    status_y2 = LCD_HEIGHT;
+
+    max_chars = LCD_WIDTH / font_w;
+    kbd_setupkeys(line, page);
+
+    while(!done)
+    {
+        lcd_clear_display();
+
+        /* draw page */
+        for (i=0; i < KEYBOARD_LINES; i++)
+            lcd_putsxy(0, i * font_h, line[i]);
+
+        len = strlen(text);
+        
+        /* separator */
+        lcd_drawline(0, main_y - margin, LCD_WIDTH, main_y - margin);
+		
+        /* write out the text */
+        if (len <= max_chars)
+        {	  
+            /* if we have enough room */
+            lcd_putsxy(main_x, main_y, text);
+            curpos = main_x + len * font_w;
+        }
+        else
+        {
+            /* if we don't have enough room, write out the last bit only */
+            lcd_putsxy(0, main_y, "<");
+            lcd_invertrect(0, main_y, font_w, font_h);
+			
+            lcd_putsxy(font_w, main_y, text + len - (max_chars-1));
+            curpos = main_x + max_chars * font_w;
+        }
+
+        /* cursor */
+        lcd_drawline(curpos, main_y, curpos, main_y + font_h);
+
+        /* draw the status bar */
+        kbd_draw_statusbar_button(0, "Shift", status_y1, font_w);
+        kbd_draw_statusbar_button(1, "Done", status_y1, font_w);
+        kbd_draw_statusbar_button(2, "Del", status_y1, font_w);
+		
+        /* highlight the key that has focus */		
+        lcd_invertrect(font_w * x, font_h * y, font_w, font_h);
+        lcd_update();
+
+        switch ( button_get(true) ) {
+
+        case BUTTON_OFF:
+            /* abort */
+            return -1;
+            break;
+
+        case BUTTON_F1:
+            /* Page */
+            if (++page == KEYBOARD_PAGES)
+                page = 0;
+            kbd_setupkeys(line, page);
+            break;
+
+        case BUTTON_RIGHT:
+            if (x < (int)strlen(line[y]) - 1) 
+                x++; 
+            else 
+                x = 0;
+            break;
+
+        case BUTTON_LEFT:
+            if (x)
+                x--;
+            else
+                x = strlen(line[y]) - 1;
+            break;
+
+        case BUTTON_DOWN:
+            if (y < KEYBOARD_LINES - 1)
+                y++;
+            else
+                y=0;
+            break;
+
+        case BUTTON_UP:
+            if (y)
+                y--;
+            else
+                y = KEYBOARD_LINES - 1;
+            break;
+
+        case BUTTON_F3:
+            /* backspace */
+            if (len)
+                text[len-1] = 0;
+            break;
+
+        case BUTTON_F2:
+            /* F2 accepts what was entered and continues */
+            done = true;
+            break;
+
+        case BUTTON_PLAY:
+            /* PLAY inserts the selected char */
+            if (len<buflen)
+            {
+                c = line[y][x];
+                text[len] = c;
+                text[len+1] = 0;
+            }
+            break;
+        }
+    }
+    return 0;
+}