From afd07f4bc007ddf4a9e036cd9f4c2db800719653 Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Wed, 4 Sep 2024 20:21:55 +0200
Subject: support for unknown character in eve font

---
 fw/fe310/eos/eve/widget/textw.c | 46 ++++++++++++++++++++++++++++++-----------
 1 file changed, 34 insertions(+), 12 deletions(-)

(limited to 'fw/fe310/eos/eve/widget/textw.c')

diff --git a/fw/fe310/eos/eve/widget/textw.c b/fw/fe310/eos/eve/widget/textw.c
index d77e245..f85d1e0 100644
--- a/fw/fe310/eos/eve/widget/textw.c
+++ b/fw/fe310/eos/eve/widget/textw.c
@@ -38,11 +38,13 @@ void eve_textw_init(EVETextWidget *widget, EVERect *g, EVEPage *page, EVEFont *f
     memset(widget, 0, sizeof(EVETextWidget));
     eve_widget_init(_widget, EVE_WIDGET_TYPE_TEXT, g, page, eve_textw_draw, eve_textw_touch, eve_textw_putc);
     widget->font = font;
+
     rv = utf8_verify(text, text_size, &text_len);
-    if (rv != UTF_OK) {
-        if (text_len >= text_size) text_len = 0;
-        text[text_len] = '\0';
-    }
+    if (rv) text[text_len] = '\0';
+
+    rv = eve_font_str_w(font, text, NULL, &text_len);
+    if (rv) text[text_len] = '\0';
+
     widget->text = text;
     widget->text_size = text_size;
     widget->text_len = text_len;
@@ -52,6 +54,20 @@ void eve_textw_init(EVETextWidget *widget, EVERect *g, EVEPage *page, EVEFont *f
     eve_textw_text_update(widget, 0, 0);
 }
 
+int eve_textw_update(EVETextWidget *widget) {
+    size_t text_len;
+    int rv;
+
+    rv = utf8_verify(widget->text, widget->text_size, &text_len);
+    if (rv != UTF_OK) widget->text[text_len] = '\0';
+
+    rv = eve_font_str_w(widget->font, widget->text, NULL, &text_len);
+    if (rv != UTF_OK) widget->text[text_len] = '\0';
+
+    memset(widget->line, 0xff, widget->line_size * sizeof(uint16_t));
+    eve_textw_text_update(widget, 0, 0);
+}
+
 int eve_textw_create(EVEWidget *_widget, EVEWidgetSpec *spec, EVEPage *page) {
     EVETextWidget *widget = (EVETextWidget *)_widget;
     EVETextSpec *tspec = &spec->tspec.text;
@@ -360,6 +376,10 @@ void eve_textw_putc(void *w, int c) {
             } else {
                 c1 = cursor2;
             }
+        }
+        text = widget->text + c1->ch;
+
+        if (cursor2->on) {
             del_c = c2->ch - c1->ch;
             if ((c == CH_CTRLX) || (c == CH_CTRLC)) {
                 eve_clipb_push(text, del_c);
@@ -367,10 +387,11 @@ void eve_textw_putc(void *w, int c) {
             }
         }
 
-        text = widget->text + c1->ch;
         if (CHAR_VALID_INPUT(c)) {
             ins_c = utf8_enc(c, utf8_buf);
+            if (ins_c < 0) return;
             ch_w = eve_font_ch_w(widget->font, c);
+            if (ch_w < 0) return;
         } else if (c == CH_CTRLV) {
             size_t clipb_len = 0;
             int rv;
@@ -378,13 +399,14 @@ void eve_textw_putc(void *w, int c) {
             clipb = eve_clipb_get();
             if (clipb) {
                 rv = utf8_verify(clipb, EVE_CLIPB_SIZE_BUF, &clipb_len);
-                if (rv != UTF_OK) {
+                if (!rv) rv = eve_font_str_w(widget->font, clipb, &ch_w, NULL);
+                if (rv) {
                     clipb = NULL;
                     clipb_len = 0;
+                    ch_w = 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;
@@ -434,8 +456,8 @@ void eve_textw_putc(void *w, int c) {
 uint16_t eve_textw_text_update(EVETextWidget *widget, uint16_t line, int uievt) {
     int i;
     ucp_t ch;
-    uint8_t ch_w;
-    uint8_t ch_l;
+    int ch_w;
+    int ch_l;
     uint16_t word_w, line_w, line_b;
     uint16_t new_h;
     EVEWidget *_widget = &widget->w;
@@ -498,7 +520,7 @@ void eve_textw_cursor_update(EVETextWidget *widget, EVETextCursor *cursor) {
     int i = LINE_START(widget, cursor->line);
     uint16_t x = 0;
     ucp_t ch;
-    uint8_t ch_l;
+    int ch_l;
     EVEWidget *_widget = &widget->w;
 
     while ((i < cursor->ch) && (i < LINE_END(widget, cursor->line))) {
@@ -515,8 +537,8 @@ void eve_textw_cursor_set(EVETextWidget *widget, EVETextCursor *cursor, uint8_t
     int16_t _x, _d;
     uint16_t c_line = LINE_EMPTY;
     ucp_t ch;
-    uint8_t ch_w;
-    uint8_t ch_l;
+    int ch_w;
+    int ch_l;
     EVEWidget *_widget = &widget->w;
 
     if ((_widget->tag0 == EVE_NOTAG) && (_widget->tagN == EVE_NOTAG)) {
-- 
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