From c25bf68c4702b20aea6ca99eb1edd5aca5f6d391 Mon Sep 17 00:00:00 2001 From: Uros Majstorovic Date: Thu, 2 Jul 2020 21:06:02 +0200 Subject: string widget implemented --- code/fe310/eos/eve/widget/str.c | 282 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 282 insertions(+) create mode 100644 code/fe310/eos/eve/widget/str.c (limited to 'code/fe310/eos/eve/widget/str.c') diff --git a/code/fe310/eos/eve/widget/str.c b/code/fe310/eos/eve/widget/str.c new file mode 100644 index 0000000..bf86d49 --- /dev/null +++ b/code/fe310/eos/eve/widget/str.c @@ -0,0 +1,282 @@ +#include +#include +#include + +#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 "str.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, char *str, uint16_t str_size) { + +} + +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, EVERect *focus) { + 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; + char f = 0; + + 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 && 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 < 0) x = 0; + if (x > widget->str_g.w - w1) x = widget->str_g.w - w1; + 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->x)); + if (widget->cursor2.on) eve_strw_cursor_clear(widget, &widget->cursor2); + f = 1; + } + break; + } + + if (evt & EVE_TOUCH_ETYPE_TRACK_STOP) { + widget->track.mode = 0; + widget->track.cursor = NULL; + widget->track.dx = 0; + } + + if (f && focus) { + focus->x = _widget->g.x; + focus->y = _widget->g.y; + focus->w = _widget->g.w; + focus->h = 2 * widget->font->h; + } + + return 1; + } + + return 0; +} + +uint8_t eve_strw_draw(EVEWidget *_widget, EVEPage *page, uint8_t 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; + char *str; + int w0 = widget->font->w; + int w1 = widget->w.g.w - widget->font->w; + + if (c == CH_EOF) { + if (cursor1->on) eve_strw_cursor_clear(widget, cursor1); + if (cursor2->on) eve_strw_cursor_clear(widget, cursor2); + return; + } + + if (cursor2->on) { + EVEStrCursor *c1; + EVEStrCursor *c2; + char *clipb = NULL; + int ins_c = 0, del_c = 0; + int ins_ch_w = 0, del_ch_w = 0; + + if (cursor1->ch <= cursor2->ch) { + c1 = cursor1; + c2 = cursor2; + } else { + c1 = cursor2; + c2 = cursor1; + } + + str = widget->str + c1->ch; + del_c = c2->ch - c1->ch; + del_ch_w = eve_font_bufw(widget->font, str, del_c); + if ((c == CH_CTRLX) || (c == CH_CTRLC)) { + // eve_clipb_push(str, del_c); + if (c == CH_CTRLC) return; + } + if (CHAR_VALID_INPUT(c) && (widget->str_len < widget->str_size + del_c - 1)) { + ins_c = 1; + ins_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->str_len >= widget->str_size - (ins_c - del_c)) ins_c = widget->str_size - widget->str_len + del_c - 1; + ins_ch_w = eve_font_bufw(widget->font, clipb, ins_c); + } + } + 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 { + *str = c; + } + c1->ch += ins_c; + c1->x += ins_ch_w; + } + widget->str_len += ins_c - del_c; + widget->str_g.w += ins_ch_w - del_ch_w; + if (c1 == cursor2) widget->cursor1 = widget->cursor2; + eve_strw_cursor_clear(widget, cursor2); + } else if (cursor1->on) { + uint8_t ch_w; + + str = widget->str + cursor1->ch; + switch (c) { + case CH_BS: + if (cursor1->ch > 0) { + ch_w = widget->font->w_ch[*(str - 1)]; + memmove(str - 1, str, widget->str_len - cursor1->ch + 1); + widget->str_len--; + widget->str_g.w -= ch_w; + cursor1->ch--; + cursor1->x -= ch_w; + } + break; + + case CH_DEL: + if (cursor1->ch < widget->str_len) { + ch_w = widget->font->w_ch[*str]; + memmove(str, str + 1, widget->str_len - cursor1->ch); + widget->str_len--; + widget->str_g.w -= ch_w; + } + break; + + default: + if (CHAR_VALID_INPUT(c) && (widget->str_len < widget->str_size - 1)) { + ch_w = widget->font->w_ch[c]; + memmove(str + 1, str, widget->str_len - cursor1->ch + 1); + *str = c; + widget->str_len++; + widget->str_g.w += ch_w; + cursor1->ch++; + cursor1->x += ch_w; + } + break; + } + } + + if (cursor1->x - widget->str_g.x < w0) widget->str_g.x = cursor1->x - w0 > 0 ? 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; + uint16_t _x, _d; + EVEWidget *_widget = &widget->w; + + x = x - _widget->g.x + widget->str_g.x; + + _x = 0; + _d = x; + for (i=0; istr_len; i++) { + _x += widget->font->w_ch[widget->str[i]]; + if (_x >= x) { + if (_x - x < _d) { + i++; + } else { + _x -= widget->font->w_ch[widget->str[i]]; + } + 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; +} -- cgit v1.2.3