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Diffstat (limited to 'code/fe310/eos/eve/widget/textw.c')
-rw-r--r--code/fe310/eos/eve/widget/textw.c504
1 files changed, 504 insertions, 0 deletions
diff --git a/code/fe310/eos/eve/widget/textw.c b/code/fe310/eos/eve/widget/textw.c
new file mode 100644
index 0000000..47f5aa2
--- /dev/null
+++ b/code/fe310/eos/eve/widget/textw.c
@@ -0,0 +1,504 @@
+#include <stdlib.h>
+#include <string.h>
+#include <math.h>
+
+#include "eve.h"
+#include "eve_kbd.h"
+
+#include "screen/screen.h"
+#include "screen/window.h"
+#include "screen/page.h"
+#include "screen/font.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'))
+
+void eve_textw_init(EVETextWidget *widget, EVERect *g, EVEFont *font, char *text, uint16_t text_size, uint16_t *line, uint16_t line_size) {
+ 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;
+ widget->line = line;
+ widget->line_size = line_size;
+ if (text_size && line_size) eve_textw_update(widget, NULL, 0);
+}
+
+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, EVERect *focus) {
+ 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);
+ widget->cursor_f = &widget->cursor1;
+ }
+ 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;
+ }
+
+ if (widget->cursor_f && focus) {
+ focus->x = _widget->g.x;
+ focus->y = _widget->g.y + widget->cursor_f->line * widget->font->h;
+ focus->w = _widget->g.w;
+ focus->h = 2 * widget->font->h;
+ widget->cursor_f = NULL;
+ }
+
+ 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 = ceil((double)((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;
+ char *text;
+ int i, r, 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) {
+ EVETextCursor *c1;
+ EVETextCursor *c2;
+ char *clipb = NULL;
+
+ if (cursor1->ch <= cursor2->ch) {
+ c1 = cursor1;
+ c2 = cursor2;
+ } else {
+ c1 = cursor2;
+ c2 = cursor1;
+ }
+
+ text = widget->text + c1->ch;
+ del_c = c2->ch - c1->ch;
+ if ((c == CH_CTRLX) || (c == CH_CTRLC)) {
+ // eve_clipb_push(text, del_c);
+ if (c == CH_CTRLC) return;
+ }
+ if (CHAR_VALID_INPUT(c) && (widget->text_len < widget->text_size + del_c - 1)) {
+ ins_c = 1;
+ ch_w = widget->font->w_ch[c];
+ } else if (c == CH_CTRLV) {
+ // clipb = eve_clipb_pop();
+ ins_c = clipb ? strlen(clipb) : 0;
+ if (ins_c) {
+ if (widget->text_len >= widget->text_size - (ins_c - del_c)) ins_c = widget->text_size - widget->text_len + del_c - 1;
+ ch_w = eve_font_buf_w(widget->font, clipb, ins_c);
+ }
+ }
+ 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 {
+ *text = c;
+ }
+ c1->ch += ins_c;
+ }
+ if (c1 == cursor2) widget->cursor1 = widget->cursor2;
+ eve_textw_cursor_clear(widget, cursor2);
+ } else {
+ text = widget->text + cursor1->ch;
+
+ switch (c) {
+ case CH_BS:
+ if (cursor1->ch > 0) {
+ ch_w = -widget->font->w_ch[*(text - 1)];
+ memmove(text - 1, text, widget->text_len - cursor1->ch + 1);
+ cursor1->ch--;
+ del_c = 1;
+ }
+ break;
+
+ case CH_DEL:
+ if (cursor1->ch < widget->text_len) {
+ memmove(text, text + 1, widget->text_len - cursor1->ch);
+ del_c = 1;
+ }
+ break;
+
+ default:
+ if (CHAR_VALID_INPUT(c) && (widget->text_len < widget->text_size - 1)) {
+ ch_w = widget->font->w_ch[c];
+ memmove(text + 1, text, widget->text_len - cursor1->ch + 1);
+ *text = c;
+ cursor1->ch++;
+ ins_c = 1;
+ }
+ break;
+ }
+ }
+
+ 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 (r < 0) return;
+
+ if (cursor1->line && (cursor1->ch < LINE_START(widget, cursor1->line))) {
+ cursor1->line--;
+ widget->cursor_f = cursor1;
+ eve_textw_cursor_update(widget, cursor1);
+ } else if (cursor1->ch > LINE_END(widget, cursor1->line)) {
+ while (cursor1->ch > LINE_END(widget, cursor1->line)) cursor1->line++;
+ widget->cursor_f = cursor1;
+ eve_textw_cursor_update(widget, cursor1);
+ } else {
+ cursor1->x += ch_w;
+ }
+}
+
+int eve_textw_update(EVETextWidget *widget, EVEPage *page, uint16_t line) {
+ int i;
+ char ch;
+ uint8_t ch_w;
+ 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;
+ for (i=LINE_START(widget, line); i<widget->text_size; i++) {
+ ch = widget->text[i];
+ if (ch < 128) ch_w = widget->font->w_ch[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 {
+ return EVE_ERR_TEXT;
+ }
+ } else if (ch < 0x7f) {
+ word_w += ch_w;
+ line_w += ch_w;
+ } else {
+ return EVE_ERR_TEXT;
+ }
+ 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;
+ }
+ }
+
+ if (i == widget->text_size) i--;
+ widget->text[i] = '\0';
+ widget->text_len = i;
+
+ 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;
+ uint16_t x;
+
+ x = 0;
+ for (i=LINE_START(widget, cursor->line); i<LINE_END(widget, cursor->line); i++) {
+ if (cursor->ch == i) break;
+ x += widget->font->w_ch[widget->text[i]];
+ }
+ 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;
+ 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;
+ for (i=LINE_START(widget, cursor->line); i<LINE_END(widget, cursor->line); i++) {
+ _x += widget->font->w_ch[widget->text[i]];
+ if (_x >= x) {
+ if (_x - x < _d) {
+ i++;
+ } else {
+ _x -= widget->font->w_ch[widget->text[i]];
+ }
+ 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;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-09-20 08:42:49 +0000