13 files changed, 1242 insertions, 0 deletions

diff --git a/code/fe310/eos/eve/widget/Makefile b/code/fe310/eos/eve/widget/Makefile
new file mode 100644
index 0000000..065cab0
--- /dev/null
+++ b/code/fe310/eos/eve/widget/Makefile
@@ -0,0 +1,17 @@
+include ../../../common.mk
+
+CFLAGS += -I. -I.. -I../..
+
+obj = clipb.o label.o widget.o pagew.o strw.o textw.o
+
+
+%.o: %.c %.h
+	$(CC) $(CFLAGS) -c $<
+
+%.o: %.S
+	$(CC) $(CFLAGS) -c $<
+
+all: $(obj)
+
+clean:
+	rm -f *.o
\ No newline at end of file
diff --git a/code/fe310/eos/eve/widget/clipb.c b/code/fe310/eos/eve/widget/clipb.c
new file mode 100644
index 0000000..04c9a46
--- /dev/null
+++ b/code/fe310/eos/eve/widget/clipb.c
@@ -0,0 +1,19 @@
+#include <string.h>
+
+#include "eve.h"
+#include "clipb.h"
+
+static uint8_t _clipb[EVE_CLIPB_SIZE_BUF];
+
+int eve_clipb_push(uint8_t *str, uint16_t len) {
+    if (len >= EVE_CLIPB_SIZE_BUF) return EVE_ERR;
+
+    memcpy(_clipb, str, len);
+    _clipb[len] = '\0';
+
+    return EVE_OK;
+}
+
+uint8_t *eve_clipb_get(void) {
+    return _clipb;
+}
\ No newline at end of file
diff --git a/code/fe310/eos/eve/widget/clipb.h b/code/fe310/eos/eve/widget/clipb.h
new file mode 100644
index 0000000..2d6fae6
--- /dev/null
+++ b/code/fe310/eos/eve/widget/clipb.h
@@ -0,0 +1,6 @@
+#include <stdint.h>
+
+#define EVE_CLIPB_SIZE_BUF  256
+
+int eve_clipb_push(uint8_t *str, uint16_t len);
+uint8_t *eve_clipb_get(void);
\ No newline at end of file
diff --git a/code/fe310/eos/eve/widget/label.c b/code/fe310/eos/eve/widget/label.c
new file mode 100644
index 0000000..ebea823
--- /dev/null
+++ b/code/fe310/eos/eve/widget/label.c
@@ -0,0 +1,26 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "label.h"
+
+void eve_label_init(EVELabel *label, EVERect *g, EVEFont *font, char *title) {
+    memset(label, 0, sizeof(EVELabel));
+    if (g) label->g = *g;
+    label->title = title;
+    label->font = font;
+    if (label->g.w == 0) label->g.w = eve_font_str_w(font, label->title);
+    if (label->g.h == 0) label->g.h = eve_font_h(font);
+}
+
+void eve_label_draw(EVELabel *label) {
+    eve_cmd(CMD_TEXT, "hhhhs", label->g.x, label->g.y, label->font->id, 0, label->title);
+}
\ No newline at end of file
diff --git a/code/fe310/eos/eve/widget/label.h b/code/fe310/eos/eve/widget/label.h
new file mode 100644
index 0000000..ec96844
--- /dev/null
+++ b/code/fe310/eos/eve/widget/label.h
@@ -0,0 +1,10 @@
+#include <stdint.h>
+
+typedef struct EVELabel {
+    EVERect g;
+    char *title;
+    EVEFont *font;
+} EVELabel;
+
+void eve_label_init(EVELabel *label, EVERect *g, EVEFont *font, char *title);
+void eve_label_draw(EVELabel *label);
\ No newline at end of file
diff --git a/code/fe310/eos/eve/widget/pagew.c b/code/fe310/eos/eve/widget/pagew.c
new file mode 100644
index 0000000..c64c477
--- /dev/null
+++ b/code/fe310/eos/eve/widget/pagew.c
@@ -0,0 +1,60 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "label.h"
+#include "widget.h"
+#include "pagew.h"
+
+void eve_pagew_init(EVEPageWidget *widget, EVERect *g, char *title, EVEFont *font, EVEPage *page) {
+    EVEWidget *_widget = &widget->w;
+
+    memset(widget, 0, sizeof(EVEPageWidget));
+    eve_widget_init(_widget, EVE_WIDGET_TYPE_PAGE, g, eve_pagew_touch, eve_pagew_draw, NULL);
+    widget->title = title;
+    widget->font = font;
+    widget->page = page;
+    if (_widget->g.w == 0) _widget->g.w = eve_font_str_w(font, widget->title);
+    if (_widget->g.h == 0) _widget->g.h = eve_font_h(font);
+}
+
+int eve_pagew_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx) {
+    EVEPageWidget *widget = (EVEPageWidget *)_widget;
+    EVETouch *t;
+    uint16_t evt;
+    int ret = 0;
+
+    if (touch_idx > 0) return 0;
+
+    t = eve_touch_evt(tag0, touch_idx, widget->tag, 1, &evt);
+    if (t && evt) {
+        if (evt & EVE_TOUCH_ETYPE_TRACK_MASK) {
+            if (page && page->handle_evt) page->handle_evt(page, _widget, t, evt, tag0, touch_idx);
+        } else if (evt & EVE_TOUCH_ETYPE_TAG_UP) {
+            widget->page->open(widget->page, page);
+        }
+        ret = 1;
+    }
+    return ret;
+}
+
+uint8_t eve_pagew_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0) {
+    EVEPageWidget *widget = (EVEPageWidget *)_widget;
+
+    widget->tag = tag0;
+    if (tag0 != EVE_TAG_NOTAG) {
+        eve_cmd_dl(TAG(tag0));
+        tag0++;
+    }
+    eve_cmd(CMD_TEXT, "hhhhs", _widget->g.x, _widget->g.y, widget->font->id, 0, widget->title);
+
+    return tag0;
+}
diff --git a/code/fe310/eos/eve/widget/pagew.h b/code/fe310/eos/eve/widget/pagew.h
new file mode 100644
index 0000000..1f9ae18
--- /dev/null
+++ b/code/fe310/eos/eve/widget/pagew.h
@@ -0,0 +1,13 @@
+#include <stdint.h>
+
+typedef struct EVEPageWidget {
+    EVEWidget w;
+    char *title;
+    EVEFont *font;
+    EVEPage *page;
+    uint8_t tag;
+} EVEPageWidget;
+
+void eve_pagew_init(EVEPageWidget *widget, EVERect *g, char *title, EVEFont *font, EVEPage *page);
+int eve_pagew_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx);
+uint8_t eve_pagew_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0);
diff --git a/code/fe310/eos/eve/widget/strw.c b/code/fe310/eos/eve/widget/strw.c
new file mode 100644
index 0000000..5f7e63d
--- /dev/null
+++ b/code/fe310/eos/eve/widget/strw.c
@@ -0,0 +1,418 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "clipb.h"
+#include "label.h"
+#include "widget.h"
+#include "strw.h"
+
+#define CH_BS                   0x08
+#define CH_DEL                  0x7f
+#define CH_EOF                  0x1a
+
+#define CH_CTRLX                0x18
+#define CH_CTRLC                0x03
+#define CH_CTRLV                0x16
+
+#define STRW_TMODE_CURSOR       1
+#define STRW_TMODE_SCROLL_X     2
+#define STRW_TMODE_SCROLL_Y     3
+
+#define CHAR_VALID_INPUT(c)     ((c >= 0x20) && (c < 0x7f))
+
+void eve_strw_init(EVEStrWidget *widget, EVERect *g, EVEFont *font, utf8_t *str, uint16_t str_size) {
+    int rv, str_len;
+    EVEWidget *_widget = &widget->w;
+
+    memset(widget, 0, sizeof(EVEStrWidget));
+    eve_widget_init(_widget, EVE_WIDGET_TYPE_STR, g, eve_strw_touch, eve_strw_draw, eve_strw_putc);
+    widget->font = font;
+    widget->str = str;
+    widget->str_size = str_size;
+    rv = utf8_verify(str, str_size, &str_len);
+    if (rv != UTF_OK) {
+        if (str_len >= str_size) str_len = 0;
+        widget->str[str_len] = '\0';
+    }
+    widget->str_len = str_len;
+    widget->str_g.w = eve_font_str_w(font, str);
+    if (_widget->g.h == 0) _widget->g.h = eve_font_h(font);
+}
+
+static void set_focus(EVEStrWidget *widget, EVEPage *page) {
+    EVERect focus;
+    EVEWidget *_widget = &widget->w;
+
+    focus.x = _widget->g.x;
+    focus.y = _widget->g.y;
+    focus.w = _widget->g.w;
+    focus.h = 2 * widget->font->h;
+    eve_page_set_focus(page, _widget, &focus);
+}
+
+static EVEStrCursor *cursor_prox(EVEStrWidget *widget, EVEStrCursor *cursor, EVEPage *page, EVETouch *t, short *dx) {
+    EVEWidget *_widget = &widget->w;
+    int x = eve_page_x(page, t->x0) - _widget->g.x + widget->str_g.x;
+    int _dx;
+
+    *dx = cursor->x - x;
+    _dx = *dx < 0 ? -(*dx) : *dx;
+
+    if (_dx <= widget->font->w) return cursor;
+    return NULL;
+}
+
+int eve_strw_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx) {
+    EVEStrWidget *widget = (EVEStrWidget *)_widget;
+    EVETouch *t;
+    uint16_t evt;
+
+    if (touch_idx > 0) return 0;
+
+    t = eve_touch_evt(tag0, touch_idx, widget->tag, 1, &evt);
+    if (t && evt) {
+        EVEStrCursor *t_cursor = NULL;
+        short dx;
+
+        if (evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TRACK_START)) {
+            if (widget->cursor2.on) {
+                t_cursor = cursor_prox(widget, &widget->cursor2, page, t, &dx);
+            }
+            if ((t_cursor == NULL) && widget->cursor1.on) {
+                t_cursor = cursor_prox(widget, &widget->cursor1, page, t, &dx);
+            }
+            if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
+                widget->track.cursor = t_cursor;
+                if (t_cursor) {
+                    widget->track.mode = STRW_TMODE_CURSOR;
+                    widget->track.dx = dx;
+                } else if (t->eevt & EVE_TOUCH_EETYPE_TRACK_X) {
+                    widget->track.mode = STRW_TMODE_SCROLL_X;
+                } else if (t->eevt & EVE_TOUCH_EETYPE_TRACK_Y) {
+                    widget->track.mode = STRW_TMODE_SCROLL_Y;
+                }
+            }
+        }
+
+        switch (widget->track.mode) {
+            case STRW_TMODE_SCROLL_Y:
+                if (page->handle_evt) page->handle_evt(page, _widget, t, evt, tag0, touch_idx);
+                break;
+
+            case STRW_TMODE_SCROLL_X:
+                if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
+                    widget->str_g.x0 = widget->str_g.x;
+                }
+                if (evt & EVE_TOUCH_ETYPE_TRACK) {
+                    int x = widget->str_g.x0 + t->x0 - t->x;
+                    int w1 = widget->w.g.w - widget->font->w;
+
+                    if (x > widget->str_g.w - w1) x = widget->str_g.w - w1;
+                    if (x < 0) x = 0;
+                    widget->str_g.x = x;
+                }
+                break;
+
+            case STRW_TMODE_CURSOR:
+                if (evt & EVE_TOUCH_ETYPE_TRACK) eve_strw_cursor_set(widget, widget->track.cursor, eve_page_x(page, t->x) + widget->track.dx);
+                break;
+
+            default:
+                if (evt & EVE_TOUCH_ETYPE_LPRESS) {
+                    if (widget->cursor2.on) {
+                        // copy
+                    } else if (widget->cursor1.on) {
+                        if (t_cursor) {
+                            // paste
+                        } else {
+                            eve_strw_cursor_set(widget, &widget->cursor2, eve_page_x(page, t->x));
+                        }
+                    } else {
+                        // select
+                    }
+                }
+                if ((evt & EVE_TOUCH_ETYPE_POINT_UP) && !(t->eevt & EVE_TOUCH_EETYPE_LPRESS)) {
+                    eve_strw_cursor_set(widget, &widget->cursor1, eve_page_x(page, t->x0));
+                    if (widget->cursor2.on) eve_strw_cursor_clear(widget, &widget->cursor2);
+                    set_focus(widget, page);
+                }
+                break;
+        }
+
+        if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
+            widget->track.mode = 0;
+            widget->track.cursor = NULL;
+            widget->track.dx = 0;
+        }
+
+        return 1;
+    }
+
+    return 0;
+}
+
+static void _draw_str(EVEStrWidget *widget, EVEWindow *window, uint16_t ch, uint16_t len, uint16_t x1, uint16_t x2, char s) {
+    int16_t x;
+    EVEWidget *_widget = &widget->w;
+
+    x = _widget->g.x - widget->str_g.x;
+    if (x1 != x2) {
+        eve_cmd_dl(BEGIN(EVE_RECTS));
+        if (!s) eve_cmd_dl(COLOR_MASK(0 ,0 ,0 ,0));
+        eve_cmd_dl(VERTEX2F(x + x1, _widget->g.y));
+        eve_cmd_dl(VERTEX2F(x + x2, _widget->g.y + widget->font->h));
+        if (!s) eve_cmd_dl(COLOR_MASK(1 ,1 ,1 ,1));
+        eve_cmd_dl(END());
+        if (len) {
+            if (s) eve_cmd_dl(COLOR_RGBC(window->color_bg));
+            eve_cmd(CMD_TEXT, "hhhhpb", x + x1, _widget->g.y, widget->font->id, 0, widget->str + ch, len, 0);
+            if (s) eve_cmd_dl(COLOR_RGBC(window->color_fg));
+        }
+    }
+}
+
+static void _draw_cursor(EVEStrWidget *widget, EVEStrCursor *cursor) {
+    uint16_t x, y;
+    EVEWidget *_widget = &widget->w;
+
+    x = _widget->g.x - widget->str_g.x + cursor->x;
+    y = _widget->g.y;
+    eve_cmd_dl(BEGIN(EVE_LINES));
+    eve_cmd_dl(VERTEX2F(x, y));
+    eve_cmd_dl(VERTEX2F(x, y + widget->font->h));
+    eve_cmd_dl(END());
+}
+
+uint8_t eve_strw_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0) {
+    EVEStrWidget *widget = (EVEStrWidget *)_widget;
+    char cut = widget->str_g.x || (widget->str_g.w > _widget->g.w);
+
+    widget->tag = tag0;
+    if (tag0 != EVE_TAG_NOTAG) {
+        eve_cmd_dl(TAG(tag0));
+        eve_touch_set_opt(tag0, EVE_TOUCH_OPT_LPRESS);
+        tag0++;
+    }
+
+    if (cut) {
+        EVEWindow *window = page->v.window;
+        EVEScreen *screen = window->screen;
+        int16_t x = eve_page_scr_x(page, _widget->g.x);
+        int16_t y = eve_page_scr_y(page, _widget->g.y);
+        uint16_t w = _widget->g.w;
+        uint16_t h = _widget->g.h;
+        int16_t win_x1 = window->g.x;
+        int16_t win_y1 = window->g.y;
+        int16_t win_x2 = win_x1 + window->g.w;
+        int16_t win_y2 = win_y1 + window->g.h;
+
+        if (win_x1 < 0) win_x1 = 0;
+        if (win_y1 < 0) win_y1 = 0;
+        if (win_x2 > screen->w) win_x2 = screen->w;
+        if (win_y2 > screen->h) win_y2 = screen->h;
+        if (x < win_x1) {
+            w += x - win_x1;
+            x = win_x1;
+        }
+        if (y < win_y1) {
+            h += y - win_y1;
+            y = win_y1;
+        }
+        if (x + w > win_x2) w = win_x2 - x;
+        if (y + h > win_y2) h = win_y2 - y;
+
+        eve_cmd_dl(SAVE_CONTEXT());
+        eve_cmd_dl(SCISSOR_XY(x, y));
+        eve_cmd_dl(SCISSOR_SIZE(w, h));
+    }
+
+    if (widget->cursor2.on) {
+        EVEStrCursor *c1, *c2;
+        int l1, l2, l3;
+
+        if (widget->cursor1.ch <= widget->cursor2.ch) {
+            c1 = &widget->cursor1;
+            c2 = &widget->cursor2;
+        } else {
+            c1 = &widget->cursor2;
+            c2 = &widget->cursor1;
+        }
+
+        l1 = c1->ch;
+        l2 = c2->ch - c1->ch;
+        l3 = widget->str_len - c2->ch;
+        _draw_str(widget, page->v.window, 0, l1, 0, c1->x, 0);
+        _draw_str(widget, page->v.window, c1->ch, l2, c1->x, c2->x, 1);
+        _draw_str(widget, page->v.window, c2->ch, l3, c2->x, widget->str_g.x + _widget->g.w, 0);
+    } else {
+        if (widget->cursor1.on) _draw_cursor(widget, &widget->cursor1);
+        _draw_str(widget, page->v.window, 0, widget->str_len, 0, widget->str_g.x + _widget->g.w, 0);
+    }
+
+    if (cut) {
+        eve_cmd_dl(RESTORE_CONTEXT());
+    }
+
+    return tag0;
+}
+
+void eve_strw_putc(void *_page, int c) {
+    EVEPage *page = _page;
+    EVEStrWidget *widget = (EVEStrWidget *)eve_page_get_focus(page);
+    EVEStrCursor *cursor1 = &widget->cursor1;
+    EVEStrCursor *cursor2 = &widget->cursor2;
+    utf8_t *str;
+    utf8_t *clipb = NULL;
+    int w0 = widget->font->w;
+    int w1 = widget->w.g.w - widget->font->w;
+    int ins_c = 0, del_c = 0;
+    int ins_w = 0, del_w = 0;
+
+
+    if (c == CH_EOF) {
+        if (cursor1->on) eve_strw_cursor_clear(widget, cursor1);
+        if (cursor2->on) eve_strw_cursor_clear(widget, cursor2);
+        return;
+    }
+
+    if (!cursor1->on) return;
+
+    if (!cursor2->on && ((c == CH_BS) || (c == CH_DEL))) {
+        utf32_t uc;
+
+        str = widget->str + cursor1->ch;
+        switch (c) {
+            case CH_BS:
+                if (cursor1->ch > 0) {
+                    del_c = utf8_seek(str, -1, &uc);
+                    del_w = eve_font_ch_w(widget->font, uc);
+                    memmove(str - del_c, str, widget->str_len - cursor1->ch + 1);
+                    widget->str_len -= del_c;
+                    widget->str_g.w -= del_w;
+                    cursor1->ch -= del_c;
+                    cursor1->x -= del_w;
+                }
+                break;
+
+            case CH_DEL:
+                if (cursor1->ch < widget->str_len) {
+                    del_c = utf8_dec(str, &uc);
+                    del_w = eve_font_ch_w(widget->font, uc);
+                    memmove(str, str + del_c, widget->str_len - cursor1->ch - del_c + 1);
+                    widget->str_len -= del_c;
+                    widget->str_g.w -= del_w;
+                }
+                break;
+        }
+        if (widget->str_g.w - widget->str_g.x < w1) {
+            widget->str_g.x -= del_w;
+            if (widget->str_g.x < 0) widget->str_g.x = 0;
+        }
+    } else {
+        EVEStrCursor *c1 = cursor1;
+        EVEStrCursor *c2 = cursor1;
+        utf8_t utf8_buf[4];
+
+        if (cursor2->on) {
+            if (cursor1->ch <= cursor2->ch) {
+                c2 = cursor2;
+            } else {
+                c1 = cursor2;
+            }
+            del_c = c2->ch - c1->ch;
+            del_w = eve_font_buf_w(widget->font, str, del_c);
+            if ((c == CH_CTRLX) || (c == CH_CTRLC)) {
+                eve_clipb_push(str, del_c);
+                if (c == CH_CTRLC) return;
+            }
+        }
+
+        str = widget->str + c1->ch;
+        if (CHAR_VALID_INPUT(c)) {
+            ins_c = utf8_enc(c, utf8_buf);
+            ins_w = eve_font_ch_w(widget->font, c);
+        } else if (c == CH_CTRLV) {
+            int rv, clipb_len = 0;
+
+            clipb = eve_clipb_get();
+            if (clipb) {
+                rv = utf8_verify(clipb, EVE_CLIPB_SIZE_BUF, &clipb_len);
+                if (rv != UTF_OK) {
+                    clipb = NULL;
+                    clipb_len = 0;
+                }
+            }
+            ins_c = clipb_len;
+            ins_w = eve_font_str_w(widget->font, clipb);
+        }
+        if (widget->str_len + ins_c >= widget->str_size + del_c) {
+            ins_c = 0;
+            ins_w = 0;
+        }
+        if (ins_c != del_c) memmove(str + ins_c, str + del_c, widget->str_len - c2->ch + 1);
+        if (ins_c) {
+            if (c == CH_CTRLV) {
+                memcpy(str, clipb, ins_c);
+            } else if (ins_c > 1) {
+                memcpy(str, utf8_buf, ins_c);
+            } else {
+                *str = utf8_buf[0];
+            }
+            c1->ch += ins_c;
+            c1->x += ins_w;
+        }
+        widget->str_len += ins_c - del_c;
+        widget->str_g.w += ins_w - del_w;
+        if (c1 == cursor2) widget->cursor1 = widget->cursor2;
+        if (cursor2->on) eve_strw_cursor_clear(widget, cursor2);
+    }
+
+    if (cursor1->x - widget->str_g.x < w0) widget->str_g.x = cursor1->x > w0 ? cursor1->x - w0 : 0;
+    if (cursor1->x - widget->str_g.x > w1) widget->str_g.x = cursor1->x - w1;
+}
+
+void eve_strw_cursor_set(EVEStrWidget *widget, EVEStrCursor *cursor, int16_t x) {
+    int i;
+    int16_t _x, _d;
+    utf32_t ch;
+    uint8_t ch_w;
+    uint8_t ch_l;
+    EVEWidget *_widget = &widget->w;
+
+    x = x - _widget->g.x + widget->str_g.x;
+
+    _x = 0;
+    _d = x;
+    i = 0;
+    while (i < widget->str_len) {
+        ch_l = utf8_dec(widget->str + i, &ch);
+        ch_w = eve_font_ch_w(widget->font, ch);
+        _x += ch_w;
+        i += ch_l;
+        if (_x >= x) {
+            if (_x - x > _d) {
+                _x -= ch_w;
+                i -= ch_l;
+            }
+            break;
+        } else {
+            _d = x - _x;
+        }
+    }
+    cursor->x = _x;
+    cursor->ch = i;
+    cursor->on = 1;
+}
+
+void eve_strw_cursor_clear(EVEStrWidget *widget, EVEStrCursor *cursor) {
+    cursor->on = 0;
+}
diff --git a/code/fe310/eos/eve/widget/strw.h b/code/fe310/eos/eve/widget/strw.h
new file mode 100644
index 0000000..72fc6aa
--- /dev/null
+++ b/code/fe310/eos/eve/widget/strw.h
@@ -0,0 +1,35 @@
+#include <stdint.h>
+
+typedef struct EVEStrCursor {
+    char on;
+    uint16_t x;
+    uint16_t ch;
+} EVEStrCursor;
+
+typedef struct EVEStrWidget {
+    EVEWidget w;
+    EVEFont *font;
+    utf8_t *str;
+    uint16_t str_size;
+    uint16_t str_len;
+    struct {
+        int16_t x;
+        int16_t x0;
+        uint16_t w;
+    } str_g;
+    EVEStrCursor cursor1;
+    EVEStrCursor cursor2;
+    uint8_t tag;
+    struct {
+        EVEStrCursor *cursor;
+        short dx;
+        char mode;
+    } track;
+} EVEStrWidget;
+
+void eve_strw_init(EVEStrWidget *widget, EVERect *g, EVEFont *font, utf8_t *str, uint16_t str_size);
+int eve_strw_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx);
+uint8_t eve_strw_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0);
+void eve_strw_putc(void *_page, int c);
+void eve_strw_cursor_set(EVEStrWidget *widget, EVEStrCursor *cursor, int16_t x);
+void eve_strw_cursor_clear(EVEStrWidget *widget, EVEStrCursor *cursor);
\ No newline at end of file
diff --git a/code/fe310/eos/eve/widget/textw.c b/code/fe310/eos/eve/widget/textw.c
new file mode 100644
index 0000000..03f6c0a
--- /dev/null
+++ b/code/fe310/eos/eve/widget/textw.c
@@ -0,0 +1,535 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "clipb.h"
+#include "label.h"
+#include "widget.h"
+#include "textw.h"
+
+#define CH_BS                   0x08
+#define CH_DEL                  0x7f
+#define CH_EOF                  0x1a
+
+#define CH_CTRLX                0x18
+#define CH_CTRLC                0x03
+#define CH_CTRLV                0x16
+
+#define TEXTW_TMODE_CURSOR      1
+#define TEXTW_TMODE_SCROLL      2
+
+#define LINE_LEN(w,l)           ((l) ? (w->line[l] ? w->line[l] - w->line[(l) - 1] - 1 : 0) : w->line[l])
+#define LINE_START(w,l)         ((l) ? w->line[(l) - 1] + 1 : 0)
+#define LINE_END(w,l)           (w->line[l])
+#define LINE_EMPTY              0xffff
+
+#define CHAR_VALID_INPUT(c)     (((c >= 0x20) && (c < 0x7f)) || (c == '\n'))
+
+#define DIVC(x,y)               ((x) / (y) + ((x) % (y) != 0))
+
+void eve_textw_init(EVETextWidget *widget, EVERect *g, EVEFont *font, utf8_t *text, uint16_t text_size, uint16_t *line, uint16_t line_size) {
+    int rv, text_len;
+    EVEWidget *_widget = &widget->w;
+
+    memset(widget, 0, sizeof(EVETextWidget));
+    eve_widget_init(_widget, EVE_WIDGET_TYPE_TEXT, g, eve_textw_touch, eve_textw_draw, eve_textw_putc);
+    widget->font = font;
+    widget->text = text;
+    widget->text_size = text_size;
+    rv = utf8_verify(text, text_size, &text_len);
+    if (rv != UTF_OK) {
+        if (text_len >= text_size) text_len = 0;
+        widget->text[text_len] = '\0';
+    }
+    widget->text_len = text_len;
+    widget->line = line;
+    widget->line_size = line_size;
+    memset(widget->line, 0xff, line_size * sizeof(uint16_t));
+    eve_textw_update(widget, NULL, 0);
+}
+
+static void set_focus(EVETextWidget *widget, EVETextCursor *cursor, EVEPage *page) {
+    EVERect focus;
+    EVEWidget *_widget = &widget->w;
+
+    focus.x = _widget->g.x;
+    focus.y = _widget->g.y + cursor->line * widget->font->h;
+    focus.w = _widget->g.w;
+    focus.h = 2 * widget->font->h;
+    eve_page_set_focus(page, _widget, &focus);
+}
+
+static EVETextCursor *cursor_prox(EVETextWidget *widget, EVETextCursor *cursor, EVEPage *page, EVETouch *t, short *dx, short *dl) {
+    EVEWidget *_widget = &widget->w;
+    int x = eve_page_x(page, t->x0) - _widget->g.x;
+    int l = (int)t->tag0 - widget->tag0 + widget->line0;
+    int _dx, _dl;
+
+    *dx = cursor->x - x;
+    *dl = cursor->line - l;
+
+    _dx = *dx < 0 ? -(*dx) : *dx;
+    _dl = *dl < 0 ? -(*dl) : *dl;
+
+    if ((_dx <= widget->font->h) && (_dl <= 1)) return cursor;
+    return NULL;
+}
+
+int eve_textw_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx) {
+    EVETextWidget *widget = (EVETextWidget *)_widget;
+    EVETouch *t;
+    uint16_t evt;
+    int ret = 0;
+
+    if (touch_idx > 0) return 0;
+
+    t = eve_touch_evt(tag0, touch_idx, widget->tag0, widget->tagN - widget->tag0, &evt);
+    if (t && evt) {
+        EVETextCursor *t_cursor = NULL;
+        short dx, dl;
+
+        if (evt & (EVE_TOUCH_ETYPE_LPRESS | EVE_TOUCH_ETYPE_TRACK_START)) {
+            if (widget->cursor2.on) {
+                t_cursor = cursor_prox(widget, &widget->cursor2, page, t, &dx, &dl);
+            }
+            if ((t_cursor == NULL) && widget->cursor1.on) {
+                t_cursor = cursor_prox(widget, &widget->cursor1, page, t, &dx, &dl);
+            }
+            if (evt & EVE_TOUCH_ETYPE_TRACK_START) {
+                widget->track.cursor = t_cursor;
+                if (t_cursor) {
+                    widget->track.mode = TEXTW_TMODE_CURSOR;
+                    widget->track.dx = dx;
+                    widget->track.dl = dl;
+                } else {
+                    widget->track.mode = TEXTW_TMODE_SCROLL;
+                }
+            }
+        }
+
+        switch (widget->track.mode) {
+            case TEXTW_TMODE_SCROLL:
+                if (page->handle_evt) page->handle_evt(page, _widget, t, evt, tag0, touch_idx);
+                break;
+
+            case TEXTW_TMODE_CURSOR:
+                if (evt & EVE_TOUCH_ETYPE_TRACK) eve_textw_cursor_set(widget, widget->track.cursor, t->tag + widget->track.dl, eve_page_x(page, t->x) + widget->track.dx);
+                break;
+
+            default:
+                if (evt & EVE_TOUCH_ETYPE_LPRESS) {
+                    if (widget->cursor2.on) {
+                        // copy
+                    } else if (widget->cursor1.on) {
+                        if (t_cursor && (dl == 0)) {
+                            // paste
+                        } else {
+                            eve_textw_cursor_set(widget, &widget->cursor2, t->tag, eve_page_x(page, t->x));
+                        }
+                    } else {
+                        // select
+                    }
+                }
+                if ((evt & EVE_TOUCH_ETYPE_POINT_UP) && !(t->eevt & EVE_TOUCH_EETYPE_LPRESS)) {
+                    eve_textw_cursor_set(widget, &widget->cursor1, t->tag_up, eve_page_x(page, t->x0));
+                    if (widget->cursor2.on) eve_textw_cursor_clear(widget, &widget->cursor2);
+                    set_focus(widget, &widget->cursor1, page);
+                }
+                break;
+        }
+
+        if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) {
+            widget->track.mode = 0;
+            widget->track.cursor = NULL;
+            widget->track.dx = 0;
+            widget->track.dl = 0;
+        }
+
+        ret = 1;
+    }
+
+    return ret;
+}
+
+static void _draw_line(EVETextWidget *widget, EVEWindow *window, uint16_t l, uint16_t ch, uint16_t len, uint16_t x1, uint16_t x2, char s) {
+    EVEWidget *_widget = &widget->w;
+
+    if (x1 != x2) {
+        eve_cmd_dl(BEGIN(EVE_RECTS));
+        if (!s) eve_cmd_dl(COLOR_MASK(0 ,0 ,0 ,0));
+        eve_cmd_dl(VERTEX2F(_widget->g.x + x1, _widget->g.y + l * widget->font->h));
+        eve_cmd_dl(VERTEX2F(_widget->g.x + x2, _widget->g.y + (l + 1) * widget->font->h));
+        if (!s) eve_cmd_dl(COLOR_MASK(1 ,1 ,1 ,1));
+        eve_cmd_dl(END());
+        if (len) {
+            if (s) eve_cmd_dl(COLOR_RGBC(window->color_bg));
+            eve_cmd(CMD_TEXT, "hhhhpb", _widget->g.x + x1, _widget->g.y + l * widget->font->h, widget->font->id, 0, widget->text + ch, len, 0);
+            if (s) eve_cmd_dl(COLOR_RGBC(window->color_fg));
+        }
+    }
+}
+
+static void _draw_cursor(EVETextWidget *widget, EVETextCursor *cursor) {
+    uint16_t x, y;
+    EVEWidget *_widget = &widget->w;
+
+    x = _widget->g.x + cursor->x;
+    y = _widget->g.y + cursor->line * widget->font->h;
+    eve_cmd_dl(BEGIN(EVE_LINES));
+    eve_cmd_dl(VERTEX2F(x, y));
+    eve_cmd_dl(VERTEX2F(x, y + widget->font->h));
+    eve_cmd_dl(END());
+}
+
+uint8_t eve_textw_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0) {
+    EVETextWidget *widget = (EVETextWidget *)_widget;
+    int line0, lineN;
+    int _line0, _lineN;
+    char lineNvisible;
+
+    _line0 = line0 = ((int)page->win_y - _widget->g.y) / widget->font->h;
+    _lineN = lineN = DIVC(((int)page->win_y - _widget->g.y + page->v.window->g.h), widget->font->h);
+    if (line0 < 0) line0 = 0;
+    if (lineN < 0) lineN = 0;
+    if (line0 > widget->line_len) line0 = widget->line_len;
+    if (lineN > widget->line_len) lineN = widget->line_len;
+    lineNvisible = (lineN >= _line0) && (lineN < _lineN);
+
+    if (lineNvisible || (line0 < lineN)) {
+        int i;
+        char s = 0;
+        EVETextCursor *c1, *c2;
+
+        widget->line0 = line0;
+        widget->tag0 = tag0;
+        widget->tagN = tag0;
+
+        if (widget->cursor2.on) {
+            if (widget->cursor1.ch <= widget->cursor2.ch) {
+                c1 = &widget->cursor1;
+                c2 = &widget->cursor2;
+            } else {
+                c1 = &widget->cursor2;
+                c2 = &widget->cursor1;
+            }
+        } else {
+            c1 = NULL;
+            c2 = NULL;
+        }
+
+        for (i=line0; i<lineN; i++) {
+            if (widget->tagN != EVE_TAG_NOTAG) {
+                eve_cmd_dl(TAG(widget->tagN));
+                eve_touch_set_opt(widget->tagN, EVE_TOUCH_OPT_LPRESS);
+                widget->tagN++;
+            }
+            if (!s && c1 && (c1->line == i)) {
+                int l1, l2, l3;
+
+                l1 = c1->ch - LINE_START(widget, i);
+                if (c2->line == i) {
+                    l2 = c2->ch - c1->ch;
+                    l3 = LINE_START(widget, i) + LINE_LEN(widget, i) - c2->ch;
+                } else {
+                    l2 = LINE_START(widget, i) + LINE_LEN(widget, i) - c1->ch;
+                    l3 = 0;
+                    s = 1;
+                }
+                _draw_line(widget, page->v.window, i, LINE_START(widget, i), l1, 0, c1->x, 0);
+                _draw_line(widget, page->v.window, i, c1->ch, l2, c1->x, s ? _widget->g.w : c2->x, 1);
+                if (!s) {
+                    _draw_line(widget, page->v.window, i, c2->ch, l3, c2->x, _widget->g.w, 0);
+                    c1 = NULL;
+                    c2 = NULL;
+                }
+            } else if (s && (c2->line == i)) {
+                int l1 = c2->ch - LINE_START(widget, i);
+                int l2 = LINE_START(widget, i) + LINE_LEN(widget, i) - c2->ch;
+
+                _draw_line(widget, page->v.window, i, LINE_START(widget, i), l1, 0, c2->x, 1);
+                _draw_line(widget, page->v.window, i, c2->ch, l2, c2->x, _widget->g.w, 0);
+                c1 = NULL;
+                c2 = NULL;
+                s = 0;
+            } else {
+                if (widget->cursor1.on && (widget->cursor1.line == i)) _draw_cursor(widget, &widget->cursor1);
+                _draw_line(widget, page->v.window, i, LINE_START(widget, i), LINE_LEN(widget, i), 0, _widget->g.w, s);
+            }
+        }
+        if (lineNvisible) {
+            if (widget->tagN != EVE_TAG_NOTAG) {
+                eve_cmd_dl(TAG(widget->tagN));
+                eve_touch_set_opt(widget->tagN, EVE_TOUCH_OPT_LPRESS);
+                widget->tagN++;
+            }
+            _draw_line(widget, page->v.window, lineN, 0, 0, 0, _widget->g.w, 0);
+        }
+
+        return widget->tagN;
+    } else {
+        widget->line0 = 0;
+        widget->tag0 = EVE_TAG_NOTAG;
+        widget->tagN = EVE_TAG_NOTAG;
+
+        return tag0;
+    }
+}
+
+void eve_textw_putc(void *_page, int c) {
+    EVEPage *page = _page;
+    EVETextWidget *widget = (EVETextWidget *)eve_page_get_focus(page);
+    EVETextCursor *cursor1 = &widget->cursor1;
+    EVETextCursor *cursor2 = &widget->cursor2;
+    utf8_t *text;
+    utf8_t *clipb = NULL;
+    int i, r;
+    int ins_c = 0, del_c = 0;
+    int ch_w = 0;
+
+    if (c == CH_EOF) {
+        if (cursor1->on) eve_textw_cursor_clear(widget, cursor1);
+        if (cursor2->on) eve_textw_cursor_clear(widget, cursor2);
+        return;
+    }
+
+    if (!cursor1->on) return;
+
+    if (!cursor2->on && ((c == CH_BS) || (c == CH_DEL))) {
+        utf32_t uc;
+
+        text = widget->text + cursor1->ch;
+        switch (c) {
+            case CH_BS:
+                if (cursor1->ch > 0) {
+                    del_c = utf8_seek(text, -1, &uc);
+                    ch_w = eve_font_ch_w(widget->font, uc);
+                    memmove(text - del_c, text, widget->text_len - cursor1->ch + 1);
+                    cursor1->ch -= del_c;
+                }
+                break;
+
+            case CH_DEL:
+                if (cursor1->ch < widget->text_len) {
+                    del_c = utf8_dec(text, &uc);
+                    ch_w = eve_font_ch_w(widget->font, uc);
+                    memmove(text, text + del_c, widget->text_len - cursor1->ch - del_c + 1);
+                }
+                break;
+        }
+    } else {
+        EVETextCursor *c1 = cursor1;
+        EVETextCursor *c2 = cursor1;
+        utf8_t utf8_buf[4];
+
+        if (cursor2->on) {
+            if (cursor1->ch <= cursor2->ch) {
+                c2 = cursor2;
+            } else {
+                c1 = cursor2;
+            }
+            del_c = c2->ch - c1->ch;
+            if ((c == CH_CTRLX) || (c == CH_CTRLC)) {
+                eve_clipb_push(text, del_c);
+                if (c == CH_CTRLC) return;
+            }
+        }
+
+        text = widget->text + c1->ch;
+        if (CHAR_VALID_INPUT(c)) {
+            ins_c = utf8_enc(c, utf8_buf);
+            ch_w = eve_font_ch_w(widget->font, c);
+        } else if (c == CH_CTRLV) {
+            int rv, clipb_len = 0;
+
+            clipb = eve_clipb_get();
+            if (clipb) {
+                rv = utf8_verify(clipb, EVE_CLIPB_SIZE_BUF, &clipb_len);
+                if (rv != UTF_OK) {
+                    clipb = NULL;
+                    clipb_len = 0;
+                }
+            }
+            ins_c = clipb_len;
+            ch_w = eve_font_str_w(widget->font, clipb);
+        }
+        if (widget->text_len + ins_c >= widget->text_size + del_c) {
+            ins_c = 0;
+            ch_w = 0;
+        }
+        if (ins_c != del_c) memmove(text + ins_c, text + del_c, widget->text_len - c2->ch + 1);
+        if (ins_c) {
+            if (c == CH_CTRLV) {
+                memcpy(text, clipb, ins_c);
+            } else if (ins_c > 1) {
+                memcpy(text, utf8_buf, ins_c);
+            } else {
+                *text = utf8_buf[0];
+            }
+            c1->ch += ins_c;
+        }
+        if (c1 == cursor2) widget->cursor1 = widget->cursor2;
+        if (cursor2->on) eve_textw_cursor_clear(widget, cursor2);
+    }
+
+    if ((ins_c == 0) && (del_c == 0)) return;
+
+    widget->text_len += ins_c - del_c;
+    for (i=cursor1->line; i<widget->line_len; i++) {
+        widget->line[i] += ins_c - del_c;
+    }
+
+    r = cursor1->line;
+    if (cursor1->line) r = eve_textw_update(widget, page, cursor1->line - 1);
+    if ((cursor1->line == 0) || (r == cursor1->line - 1)) r = eve_textw_update(widget, page, cursor1->line);
+
+    if (cursor1->line && (cursor1->ch < LINE_START(widget, cursor1->line))) {
+        cursor1->line--;
+        eve_textw_cursor_update(widget, cursor1);
+        set_focus(widget, cursor1, page);
+    } else if (cursor1->ch > LINE_END(widget, cursor1->line)) {
+        while (cursor1->ch > LINE_END(widget, cursor1->line)) cursor1->line++;
+        eve_textw_cursor_update(widget, cursor1);
+        set_focus(widget, cursor1, page);
+    } else {
+        cursor1->x += ch_w;
+    }
+}
+
+uint16_t eve_textw_update(EVETextWidget *widget, EVEPage *page, uint16_t line) {
+    int i;
+    utf32_t ch;
+    uint8_t ch_w;
+    uint8_t ch_l;
+    uint16_t word_w, line_w, line_b;
+    uint16_t new_h;
+    EVEWidget *_widget = &widget->w;
+
+    word_w = 0;
+    line_w = 0;
+    line_b = LINE_EMPTY;
+
+    i = LINE_START(widget, line);
+    while (i < widget->text_size) {
+        ch_l = utf8_dec(widget->text + i, &ch);
+        if (!CHAR_VALID_INPUT(ch) && ch) {
+            ch = 0;
+            widget->text[i] = '\0';
+            widget->text_len = i;
+            widget->line[line] = LINE_EMPTY;
+        }
+
+        ch_w = eve_font_ch_w(widget->font, ch);
+        if (ch <= 0x20) {
+            if ((ch == '\n') || (ch == '\0')) {
+                if (widget->line[line] == i) return line;
+                widget->line[line] = i;
+                line++;
+                if ((ch == '\0') || (line == widget->line_size)) break;
+                word_w = 0;
+                line_w = 0;
+                line_b = LINE_EMPTY;
+            } else if (ch == ' ') {
+                word_w = 0;
+                line_w += ch_w;
+                line_b = i;
+            }
+        } else {
+            word_w += ch_w;
+            line_w += ch_w;
+        }
+        if ((line_w > _widget->g.w) && (line_b != LINE_EMPTY)) {
+            if (widget->line[line] == line_b) return line;
+            widget->line[line] = line_b;
+            line++;
+            if (line == widget->line_size) {
+                i = line_b;
+                break;
+            }
+            line_w = word_w;
+            line_b = LINE_EMPTY;
+        }
+        i += ch_l;
+    }
+
+    widget->line_len = line;
+    new_h = (line + 1) * widget->font->h;
+    for (i=line; i<widget->line_size; i++) {
+        widget->line[i] = LINE_EMPTY;
+    }
+
+    if (_widget->g.h != new_h) {
+        _widget->g.h = new_h;
+        if (page && page->update_g) page->update_g(page, _widget);
+    }
+
+    return line;
+}
+
+void eve_textw_cursor_update(EVETextWidget *widget, EVETextCursor *cursor) {
+    int i = LINE_START(widget, cursor->line);
+    uint16_t x = 0;
+    utf32_t ch;
+    uint8_t ch_l;
+
+    while ((i < cursor->ch) && (i < LINE_END(widget, cursor->line))) {
+        ch_l = utf8_dec(widget->text + i, &ch);
+        x += eve_font_ch_w(widget->font, ch);
+        i += ch_l;
+    }
+    cursor->x = x;
+}
+
+void eve_textw_cursor_set(EVETextWidget *widget, EVETextCursor *cursor, uint8_t tag, int16_t x) {
+    int i;
+    int16_t _x, _d;
+    uint16_t c_line = LINE_EMPTY;
+    utf32_t ch;
+    uint8_t ch_w;
+    uint8_t ch_l;
+    EVEWidget *_widget = &widget->w;
+
+    if ((tag >= widget->tag0) && ((widget->tagN == EVE_TAG_NOTAG) || (tag < widget->tagN))) c_line = tag - widget->tag0 + widget->line0;
+    if (c_line < widget->line_len) {
+        cursor->line = c_line;
+    } else if (c_line == widget->line_len) {
+        cursor->line = c_line - 1;
+    } else if (!cursor->on) {
+        return;
+    }
+
+    x -= _widget->g.x;
+
+    _x = 0;
+    _d = x;
+    i = LINE_START(widget, cursor->line);
+    while (i < LINE_END(widget, cursor->line)) {
+        ch_l = utf8_dec(widget->text + i, &ch);
+        ch_w = eve_font_ch_w(widget->font, ch);
+        _x += ch_w;
+        i += ch_l;
+        if (_x >= x) {
+            if (_x - x > _d) {
+                _x -= ch_w;
+                i -= ch_l;
+            }
+            break;
+        } else {
+            _d = x - _x;
+        }
+    }
+    cursor->x = _x;
+    cursor->ch = i;
+    cursor->on = 1;
+}
+
+void eve_textw_cursor_clear(EVETextWidget *widget, EVETextCursor *cursor) {
+    cursor->on = 0;
+}
diff --git a/code/fe310/eos/eve/widget/textw.h b/code/fe310/eos/eve/widget/textw.h
new file mode 100644
index 0000000..cd46ea3
--- /dev/null
+++ b/code/fe310/eos/eve/widget/textw.h
@@ -0,0 +1,39 @@
+#include <stdint.h>
+
+typedef struct EVETextCursor {
+    char on;
+    uint16_t x;
+    uint16_t line;
+    uint16_t ch;
+} EVETextCursor;
+
+typedef struct EVETextWidget {
+    EVEWidget w;
+    EVEFont *font;
+    utf8_t *text;
+    uint16_t text_size;
+    uint16_t text_len;
+    uint16_t *line;
+    uint16_t line_size;
+    uint16_t line_len;
+    EVETextCursor cursor1;
+    EVETextCursor cursor2;
+    uint16_t line0;
+    uint8_t tag0;
+    uint8_t tagN;
+    struct {
+        EVETextCursor *cursor;
+        short dx;
+        short dl;
+        char mode;
+    } track;
+} EVETextWidget;
+
+void eve_textw_init(EVETextWidget *widget, EVERect *g, EVEFont *font, utf8_t *text, uint16_t text_size, uint16_t *line, uint16_t line_size);
+int eve_textw_touch(EVEWidget *_widget, EVEPage *page, uint8_t tag0, int touch_idx);
+uint8_t eve_textw_draw(EVEWidget *_widget, EVEPage *page, uint8_t tag0);
+void eve_textw_putc(void *_w, int c);
+uint16_t eve_textw_update(EVETextWidget *widget, EVEPage *page, uint16_t line);
+void eve_textw_cursor_update(EVETextWidget *widget, EVETextCursor *cursor);
+void eve_textw_cursor_set(EVETextWidget *widget, EVETextCursor *cursor, uint8_t tag, int16_t x);
+void eve_textw_cursor_clear(EVETextWidget *widget, EVETextCursor *cursor);
diff --git a/code/fe310/eos/eve/widget/widget.c b/code/fe310/eos/eve/widget/widget.c
new file mode 100644
index 0000000..ab121d8
--- /dev/null
+++ b/code/fe310/eos/eve/widget/widget.c
@@ -0,0 +1,41 @@
+#include <stdlib.h>
+#include <string.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+#include "unicode.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.h"
+
+#include "label.h"
+#include "widget.h"
+#include "pagew.h"
+#include "strw.h"
+#include "textw.h"
+
+static const size_t _eve_wsize[] = {
+    0,
+    sizeof(EVEPageWidget),
+    sizeof(EVEStrWidget),
+    sizeof(EVETextWidget)
+};
+
+void eve_widget_init(EVEWidget *widget, uint8_t type, EVERect *g, eve_widget_touch_t touch, eve_widget_draw_t draw, eve_kbd_input_handler_t putc) {
+    if (g) widget->g = *g;
+    widget->touch = touch;
+    widget->draw = draw;
+    widget->putc = putc;
+    widget->type = type;
+}
+
+void eve_widget_set_label(EVEWidget *widget, EVELabel *label) {
+    widget->label = label;
+}
+
+EVEWidget *eve_widget_next(EVEWidget *widget) {
+    char *_w = (char *)widget;
+    return (EVEWidget *)(_w + _eve_wsize[widget->type]);
+}
diff --git a/code/fe310/eos/eve/widget/widget.h b/code/fe310/eos/eve/widget/widget.h
new file mode 100644
index 0000000..1aa2cd7
--- /dev/null
+++ b/code/fe310/eos/eve/widget/widget.h
@@ -0,0 +1,23 @@
+#include <stdint.h>
+
+#define EVE_WIDGET_TYPE_PAGE    1
+#define EVE_WIDGET_TYPE_STR     2
+#define EVE_WIDGET_TYPE_TEXT    3
+
+struct EVEWidget;
+
+typedef int (*eve_widget_touch_t) (struct EVEWidget *, EVEPage *, uint8_t, int);
+typedef uint8_t (*eve_widget_draw_t) (struct EVEWidget *, EVEPage *, uint8_t);
+
+typedef struct EVEWidget {
+    EVERect g;
+    eve_widget_touch_t touch;
+    eve_widget_draw_t draw;
+    eve_kbd_input_handler_t putc;
+    EVELabel *label;
+    uint8_t type;
+} EVEWidget;
+
+void eve_widget_init(EVEWidget *widget, uint8_t type, EVERect *g, eve_widget_touch_t touch, eve_widget_draw_t draw, eve_kbd_input_handler_t putc);
+void eve_widget_set_label(EVEWidget *widget, EVELabel *label);
+EVEWidget *eve_widget_next(EVEWidget *widget);