#include "nuklear.h"
#include "nuklear_internal.h"
/* ===============================================================
*
* FILTER
*
* ===============================================================*/
NK_API nk_bool
nk_filter_default(const struct nk_text_edit *box, nk_rune unicode)
{
NK_UNUSED(unicode);
NK_UNUSED(box);
return nk_true;
}
NK_API nk_bool
nk_filter_ascii(const struct nk_text_edit *box, nk_rune unicode)
{
NK_UNUSED(box);
if (unicode > 128) return nk_false;
else return nk_true;
}
NK_API nk_bool
nk_filter_float(const struct nk_text_edit *box, nk_rune unicode)
{
NK_UNUSED(box);
if ((unicode < '0' || unicode > '9') && unicode != '.' && unicode != '-')
return nk_false;
else return nk_true;
}
NK_API nk_bool
nk_filter_decimal(const struct nk_text_edit *box, nk_rune unicode)
{
NK_UNUSED(box);
if ((unicode < '0' || unicode > '9') && unicode != '-')
return nk_false;
else return nk_true;
}
NK_API nk_bool
nk_filter_hex(const struct nk_text_edit *box, nk_rune unicode)
{
NK_UNUSED(box);
if ((unicode < '0' || unicode > '9') &&
(unicode < 'a' || unicode > 'f') &&
(unicode < 'A' || unicode > 'F'))
return nk_false;
else return nk_true;
}
NK_API nk_bool
nk_filter_oct(const struct nk_text_edit *box, nk_rune unicode)
{
NK_UNUSED(box);
if (unicode < '0' || unicode > '7')
return nk_false;
else return nk_true;
}
NK_API nk_bool
nk_filter_binary(const struct nk_text_edit *box, nk_rune unicode)
{
NK_UNUSED(box);
if (unicode != '0' && unicode != '1')
return nk_false;
else return nk_true;
}
/* ===============================================================
*
* EDIT
*
* ===============================================================*/
NK_LIB void
nk_edit_draw_text(struct nk_command_buffer *out,
const struct nk_style_edit *style, float pos_x, float pos_y,
float x_offset, const char *text, int byte_len, float row_height,
const struct nk_user_font *font, struct nk_color background,
struct nk_color foreground, nk_bool is_selected)
{
NK_ASSERT(out);
NK_ASSERT(font);
NK_ASSERT(style);
if (!text || !byte_len || !out || !style) return;
{int glyph_len = 0;
nk_rune unicode = 0;
int text_len = 0;
float line_width = 0;
float glyph_width;
const char *line = text;
float line_offset = 0;
int line_count = 0;
struct nk_text txt;
txt.padding = nk_vec2(0,0);
txt.background = background;
txt.text = foreground;
glyph_len = nk_utf_decode(text+text_len, &unicode, byte_len-text_len);
if (!glyph_len) return;
while ((text_len < byte_len) && glyph_len)
{
if (unicode == '\n') {
/* new line separator so draw previous line */
struct nk_rect label;
label.y = pos_y + line_offset;
label.h = row_height;
label.w = line_width;
label.x = pos_x;
if (!line_count)
label.x += x_offset;
if (is_selected) /* selection needs to draw different background color */
nk_fill_rect(out, label, 0, background);
nk_widget_text(out, label, line, (int)((text + text_len) - line),
&txt, NK_TEXT_CENTERED, font);
text_len++;
line_count++;
line_width = 0;
line = text + text_len;
line_offset += row_height;
glyph_len = nk_utf_decode(text + text_len, &unicode, (int)(byte_len-text_len));
continue;
}
if (unicode == '\r') {
text_len++;
glyph_len = nk_utf_decode(text + text_len, &unicode, byte_len-text_len);
continue;
}
glyph_width = font->width(font->userdata, font->height, text+text_len, glyph_len);
line_width += (float)glyph_width;
text_len += glyph_len;
glyph_len = nk_utf_decode(text + text_len, &unicode, byte_len-text_len);
continue;
}
if (line_width > 0) {
/* draw last line */
struct nk_rect label;
label.y = pos_y + line_offset;
label.h = row_height;
label.w = line_width;
label.x = pos_x;
if (!line_count)
label.x += x_offset;
if (is_selected)
nk_fill_rect(out, label, 0, background);
nk_widget_text(out, label, line, (int)((text + text_len) - line),
&txt, NK_TEXT_LEFT, font);
}}
}
NK_LIB nk_flags
nk_do_edit(nk_flags *state, struct nk_command_buffer *out,
struct nk_rect bounds, nk_flags flags, nk_plugin_filter filter,
struct nk_text_edit *edit, const struct nk_style_edit *style,
struct nk_input *in, const struct nk_user_font *font)
{
struct nk_rect area;
nk_flags ret = 0;
float row_height;
char prev_state = 0;
char is_hovered = 0;
char select_all = 0;
char cursor_follow = 0;
struct nk_rect old_clip;
struct nk_rect clip;
NK_ASSERT(state);
NK_ASSERT(out);
NK_ASSERT(style);
if (!state || !out || !style)
return ret;
/* visible text area calculation */
area.x = bounds.x + style->padding.x + style->border;
area.y = bounds.y + style->padding.y + style->border;
area.w = bounds.w - (2.0f * style->padding.x + 2 * style->border);
area.h = bounds.h - (2.0f * style->padding.y + 2 * style->border);
if (flags & NK_EDIT_MULTILINE)
area.w = NK_MAX(0, area.w - style->scrollbar_size.x);
row_height = (flags & NK_EDIT_MULTILINE)? font->height + style->row_padding: area.h;
/* calculate clipping rectangle */
old_clip = out->clip;
nk_unify(&clip, &old_clip, area.x, area.y, area.x + area.w, area.y + area.h);
/* update edit state */
prev_state = (char)edit->active;
is_hovered = (char)nk_input_is_mouse_hovering_rect(in, bounds);
if (in && in->mouse.buttons[NK_BUTTON_LEFT].clicked && in->mouse.buttons[NK_BUTTON_LEFT].down) {
edit->active = NK_INBOX(in->mouse.pos.x, in->mouse.pos.y,
bounds.x, bounds.y, bounds.w, bounds.h);
}
/* (de)activate text editor */
if (!prev_state && edit->active) {
const enum nk_text_edit_type type = (flags & NK_EDIT_MULTILINE) ?
NK_TEXT_EDIT_MULTI_LINE: NK_TEXT_EDIT_SINGLE_LINE;
/* keep scroll position when re-activating edit widget */
struct nk_vec2 oldscrollbar = edit->scrollbar;
nk_textedit_clear_state(edit, type, filter);
edit->scrollbar = oldscrollbar;
if (flags & NK_EDIT_AUTO_SELECT)
select_all = nk_true;
if (flags & NK_EDIT_GOTO_END_ON_ACTIVATE) {
edit->cursor = edit->string.len;
in = 0;
}
} else if (!edit->active) edit->mode = NK_TEXT_EDIT_MODE_VIEW;
if (flags & NK_EDIT_READ_ONLY)
edit->mode = NK_TEXT_EDIT_MODE_VIEW;
else if (flags & NK_EDIT_ALWAYS_INSERT_MODE)
edit->mode = NK_TEXT_EDIT_MODE_INSERT;
ret = (edit->active) ? NK_EDIT_ACTIVE: NK_EDIT_INACTIVE;
if (prev_state != edit->active)
ret |= (edit->active) ? NK_EDIT_ACTIVATED: NK_EDIT_DEACTIVATED;
/* handle user input */
if (edit->active && in)
{
int shift_mod = in->keyboard.keys[NK_KEY_SHIFT].down;
const float mouse_x = (in->mouse.pos.x - area.x) + edit->scrollbar.x;
const float mouse_y = (in->mouse.pos.y - area.y) + edit->scrollbar.y;
/* mouse click handler */
is_hovered = (char)nk_input_is_mouse_hovering_rect(in, area);
if (select_all) {
nk_textedit_select_all(edit);
} else if (is_hovered && in->mouse.buttons[NK_BUTTON_LEFT].down &&
in->mouse.buttons[NK_BUTTON_LEFT].clicked) {
nk_textedit_click(edit, mouse_x, mouse_y, font, row_height);
} else if (is_hovered && in->mouse.buttons[NK_BUTTON_LEFT].down &&
(in->mouse.delta.x != 0.0f || in->mouse.delta.y != 0.0f)) {
nk_textedit_drag(edit, mouse_x, mouse_y, font, row_height);
cursor_follow = nk_true;
} else if (is_hovered && in->mouse.buttons[NK_BUTTON_RIGHT].clicked &&
in->mouse.buttons[NK_BUTTON_RIGHT].down) {
nk_textedit_key(edit, NK_KEY_TEXT_WORD_LEFT, nk_false, font, row_height);
nk_textedit_key(edit, NK_KEY_TEXT_WORD_RIGHT, nk_true, font, row_height);
cursor_follow = nk_true;
}
{int i; /* keyboard input */
int old_mode = edit->mode;
for (i = 0; i < NK_KEY_MAX; ++i) {
if (i == NK_KEY_ENTER || i == NK_KEY_TAB) continue; /* special case */
if (nk_input_is_key_pressed(in, (enum nk_keys)i)) {
nk_textedit_key(edit, (enum nk_keys)i, shift_mod, font, row_height);
cursor_follow = nk_true;
}
}
if (old_mode != edit->mode) {
in->keyboard.text_len = 0;
}}
/* text input */
edit->filter = filter;
if (in->keyboard.text_len) {
nk_textedit_text(edit, in->keyboard.text, in->keyboard.text_len);
cursor_follow = nk_true;
in->keyboard.text_len = 0;
}
/* enter key handler */
if (nk_input_is_key_pressed(in, NK_KEY_ENTER)) {
cursor_follow = nk_true;
if (flags & NK_EDIT_CTRL_ENTER_NEWLINE && shift_mod)
nk_textedit_text(edit, "\n", 1);
else if (flags & NK_EDIT_SIG_ENTER)
ret |= NK_EDIT_COMMITED;
else nk_textedit_text(edit, "\n", 1);
}
/* cut & copy handler */
{int copy= nk_input_is_key_pressed(in, NK_KEY_COPY);
int cut = nk_input_is_key_pressed(in, NK_KEY_CUT);
if ((copy || cut) && (flags & NK_EDIT_CLIPBOARD))
{
int glyph_len;
nk_rune unicode;
const char *text;
int b = edit->select_start;
int e = edit->select_end;
int begin = NK_MIN(b, e);
int end = NK_MAX(b, e);
text = nk_str_at_const(&edit->string, begin, &unicode, &glyph_len);
if (edit->clip.copy)
edit->clip.copy(edit->clip.userdata, text, end - begin);
if (cut && !(flags & NK_EDIT_READ_ONLY)){
nk_textedit_cut(edit);
cursor_follow = nk_true;
}
}}
/* paste handler */
{int paste = nk_input_is_key_pressed(in, NK_KEY_PASTE);
if (paste && (flags & NK_EDIT_CLIPBOARD) && edit->clip.paste) {
edit->clip.paste(edit->clip.userdata, edit);
cursor_follow = nk_true;
}}
/* tab handler */
{int tab = nk_input_is_key_pressed(in, NK_KEY_TAB);
if (tab && (flags & NK_EDIT_ALLOW_TAB)) {
nk_textedit_text(edit, " ", 4);
cursor_follow = nk_true;
}}
}
/* set widget state */
if (edit->active)
*state = NK_WIDGET_STATE_ACTIVE;
else nk_widget_state_reset(state);
if (is_hovered)
*state |= NK_WIDGET_STATE_HOVERED;
/* DRAW EDIT */
{const char *text = nk_str_get_const(&edit->string);
int len = nk_str_len_char(&edit->string);
{/* select background colors/images */
const struct nk_style_item *background;
if (*state & NK_WIDGET_STATE_ACTIVED)
background = &style->active;
else if (*state & NK_WIDGET_STATE_HOVER)
background = &style->hover;
else background = &style->normal;
/* draw background frame */
switch(background->type) {
case NK_STYLE_ITEM_IMAGE:
nk_draw_image(out, bounds, &background->data.image, nk_white);
break;
case NK_STYLE_ITEM_NINE_SLICE:
nk_draw_nine_slice(out, bounds, &background->data.slice, nk_white);
break;
case NK_STYLE_ITEM_COLOR:
nk_fill_rect(out, bounds, style->rounding, background->data.color);
nk_stroke_rect(out, bounds, style->rounding, style->border, style->border_color);
break;
}}
area.w = NK_MAX(0, area.w - style->cursor_size);
if (edit->active)
{
int total_lines = 1;
struct nk_vec2 text_size = nk_vec2(0,0);
/* text pointer positions */
const char *cursor_ptr = 0;
const char *select_begin_ptr = 0;
const char *select_end_ptr = 0;
/* 2D pixel positions */
struct nk_vec2 cursor_pos = nk_vec2(0,0);
struct nk_vec2 selection_offset_start = nk_vec2(0,0);
struct nk_vec2 selection_offset_end = nk_vec2(0,0);
int selection_begin = NK_MIN(edit->select_start, edit->select_end);
int selection_end = NK_MAX(edit->select_start, edit->select_end);
/* calculate total line count + total space + cursor/selection position */
float line_width = 0.0f;
if (text && len)
{
/* utf8 encoding */
float glyph_width;
int glyph_len = 0;
nk_rune unicode = 0;
int text_len = 0;
int glyphs = 0;
int row_begin = 0;
glyph_len = nk_utf_decode(text, &unicode, len);
glyph_width = font->width(font->userdata, font->height, text, glyph_len);
line_width = 0;
/* iterate all lines */
while ((text_len < len) && glyph_len)
{
/* set cursor 2D position and line */
if (!cursor_ptr && glyphs == edit->cursor)
{
int glyph_offset;
struct nk_vec2 out_offset;
struct nk_vec2 row_size;
const char *remaining;
/* calculate 2d position */
cursor_pos.y = (float)(total_lines-1) * row_height;
row_size = nk_text_calculate_text_bounds(font, text+row_begin,
text_len-row_begin, row_height, &remaining,
&out_offset, &glyph_offset, NK_STOP_ON_NEW_LINE);
cursor_pos.x = row_size.x;
cursor_ptr = text + text_len;
}
/* set start selection 2D position and line */
if (!select_begin_ptr && edit->select_start != edit->select_end &&
glyphs == selection_begin)
{
int glyph_offset;
struct nk_vec2 out_offset;
struct nk_vec2 row_size;
const char *remaining;
/* calculate 2d position */
selection_offset_start.y = (float)(NK_MAX(total_lines-1,0)) * row_height;
row_size = nk_text_calculate_text_bounds(font, text+row_begin,
text_len-row_begin, row_height, &remaining,
&out_offset, &glyph_offset, NK_STOP_ON_NEW_LINE);
selection_offset_start.x = row_size.x;
select_begin_ptr = text + text_len;
}
/* set end selection 2D position and line */
if (!select_end_ptr && edit->select_start != edit->select_end &&
glyphs == selection_end)
{
int glyph_offset;
struct nk_vec2 out_offset;
struct nk_vec2 row_size;
const char *remaining;
/* calculate 2d position */
selection_offset_end.y = (float)(total_lines-1) * row_height;
row_size = nk_text_calculate_text_bounds(font, text+row_begin,
text_len-row_begin, row_height, &remaining,
&out_offset, &glyph_offset, NK_STOP_ON_NEW_LINE);
selection_offset_end.x = row_size.x;
select_end_ptr = text + text_len;
}
if (unicode == '\n') {
text_size.x = NK_MAX(text_size.x, line_width);
total_lines++;
line_width = 0;
text_len++;
glyphs++;
row_begin = text_len;
glyph_len = nk_utf_decode(text + text_len, &unicode, len-text_len);
glyph_width = font->width(font->userdata, font->height, text+text_len, glyph_len);
continue;
}
glyphs++;
text_len += glyph_len;
line_width += (float)glyph_width;
glyph_len = nk_utf_decode(text + text_len, &unicode, len-text_len);
glyph_width = font->width(font->userdata, font->height,
text+text_len, glyph_len);
continue;
}
text_size.y = (float)total_lines * row_height;
/* handle case when cursor is at end of text buffer */
if (!cursor_ptr && edit->cursor == edit->string.len) {
cursor_pos.x = line_width;
cursor_pos.y = text_size.y - row_height;
}
}
{
/* scrollbar */
if (cursor_follow)
{
/* update scrollbar to follow cursor */
if (!(flags & NK_EDIT_NO_HORIZONTAL_SCROLL)) {
/* horizontal scroll */
const float scroll_increment = area.w * 0.25f;
if (cursor_pos.x < edit->scrollbar.x)
edit->scrollbar.x = (float)(int)NK_MAX(0.0f, cursor_pos.x - scroll_increment);
if (cursor_pos.x >= edit->scrollbar.x + area.w)
edit->scrollbar.x = (float)(int)NK_MAX(0.0f, cursor_pos.x - area.w + scroll_increment);
} else edit->scrollbar.x = 0;
if (flags & NK_EDIT_MULTILINE) {
/* vertical scroll */
if (cursor_pos.y < edit->scrollbar.y)
edit->scrollbar.y = NK_MAX(0.0f, cursor_pos.y - row_height);
if (cursor_pos.y >= edit->scrollbar.y + row_height)
edit->scrollbar.y = edit->scrollbar.y + row_height;
} else edit->scrollbar.y = 0;
}
/* scrollbar widget */
if (flags & NK_EDIT_MULTILINE)
{
nk_flags ws;
struct nk_rect scroll;
float scroll_target;
float scroll_offset;
float scroll_step;
float scroll_inc;
scroll = area;
scroll.x = (bounds.x + bounds.w - style->border) - style->scrollbar_size.x;
scroll.w = style->scrollbar_size.x;
scroll_offset = edit->scrollbar.y;
scroll_step = scroll.h * 0.10f;
scroll_inc = scroll.h * 0.01f;
scroll_target = text_size.y;
edit->scrollbar.y = nk_do_scrollbarv(&ws, out, scroll, 0,
scroll_offset, scroll_target, scroll_step, scroll_inc,
&style->scrollbar, in, font);
}
}
/* draw text */
{struct nk_color background_color;
struct nk_color text_color;
struct nk_color sel_background_color;
struct nk_color sel_text_color;
struct nk_color cursor_color;
struct nk_color cursor_text_color;
const struct nk_style_item *background;
nk_push_scissor(out, clip);
/* select correct colors to draw */
if (*state & NK_WIDGET_STATE_ACTIVED) {
background = &style->active;
text_color = style->text_active;
sel_text_color = style->selected_text_hover;
sel_background_color = style->selected_hover;
cursor_color = style->cursor_hover;
cursor_text_color = style->cursor_text_hover;
} else if (*state & NK_WIDGET_STATE_HOVER) {
background = &style->hover;
text_color = style->text_hover;
sel_text_color = style->selected_text_hover;
sel_background_color = style->selected_hover;
cursor_text_color = style->cursor_text_hover;
cursor_color = style->cursor_hover;
} else {
background = &style->normal;
text_color = style->text_normal;
sel_text_color = style->selected_text_normal;
sel_background_color = style->selected_normal;
cursor_color = style->cursor_normal;
cursor_text_color = style->cursor_text_normal;
}
if (background->type == NK_STYLE_ITEM_IMAGE)
background_color = nk_rgba(0,0,0,0);
else
background_color = background->data.color;
if (edit->select_start == edit->select_end) {
/* no selection so just draw the complete text */
const char *begin = nk_str_get_const(&edit->string);
int l = nk_str_len_char(&edit->string);
nk_edit_draw_text(out, style, area.x - edit->scrollbar.x,
area.y - edit->scrollbar.y, 0, begin, l, row_height, font,
background_color, text_color, nk_false);
} else {
/* edit has selection so draw 1-3 text chunks */
if (edit->select_start != edit->select_end && selection_begin > 0){
/* draw unselected text before selection */
const char *begin = nk_str_get_const(&edit->string);
NK_ASSERT(select_begin_ptr);
nk_edit_draw_text(out, style, area.x - edit->scrollbar.x,
area.y - edit->scrollbar.y, 0, begin, (int)(select_begin_ptr - begin),
row_height, font, background_color, text_color, nk_false);
}
if (edit->select_start != edit->select_end) {
/* draw selected text */
NK_ASSERT(select_begin_ptr);
if (!select_end_ptr) {
const char *begin = nk_str_get_const(&edit->string);
select_end_ptr = begin + nk_str_len_char(&edit->string);
}
nk_edit_draw_text(out, style,
area.x - edit->scrollbar.x,
area.y + selection_offset_start.y - edit->scrollbar.y,
selection_offset_start.x,
select_begin_ptr, (int)(select_end_ptr - select_begin_ptr),
row_height, font, sel_background_color, sel_text_color, nk_true);
}
if ((edit->select_start != edit->select_end &&
selection_end < edit->string.len))
{
/* draw unselected text after selected text */
const char *begin = select_end_ptr;
const char *end = nk_str_get_const(&edit->string) +
nk_str_len_char(&edit->string);
NK_ASSERT(select_end_ptr);
nk_edit_draw_text(out, style,
area.x - edit->scrollbar.x,
area.y + selection_offset_end.y - edit->scrollbar.y,
selection_offset_end.x,
begin, (int)(end - begin), row_height, font,
background_color, text_color, nk_true);
}
}
/* cursor */
if (edit->select_start == edit->select_end)
{
if (edit->cursor >= nk_str_len(&edit->string) ||
(cursor_ptr && *cursor_ptr == '\n')) {
/* draw cursor at end of line */
struct nk_rect cursor;
cursor.w = style->cursor_size;
cursor.h = font->height;
cursor.x = area.x + cursor_pos.x - edit->scrollbar.x;
cursor.y = area.y + cursor_pos.y + row_height/2.0f - cursor.h/2.0f;
cursor.y -= edit->scrollbar.y;
nk_fill_rect(out, cursor, 0, cursor_color);
} else {
/* draw cursor inside text */
int glyph_len;
struct nk_rect label;
struct nk_text txt;
nk_rune unicode;
NK_ASSERT(cursor_ptr);
glyph_len = nk_utf_decode(cursor_ptr, &unicode, 4);
label.x = area.x + cursor_pos.x - edit->scrollbar.x;
label.y = area.y + cursor_pos.y - edit->scrollbar.y;
label.w = font->width(font->userdata, font->height, cursor_ptr, glyph_len);
label.h = row_height;
txt.padding = nk_vec2(0,0);
txt.background = cursor_color;;
txt.text = cursor_text_color;
nk_fill_rect(out, label, 0, cursor_color);
nk_widget_text(out, label, cursor_ptr, glyph_len, &txt, NK_TEXT_LEFT, font);
}
}}
} else {
/* not active so just draw text */
int l = nk_str_len_char(&edit->string);
const char *begin = nk_str_get_const(&edit->string);
const struct nk_style_item *background;
struct nk_color background_color;
struct nk_color text_color;
nk_push_scissor(out, clip);
if (*state & NK_WIDGET_STATE_ACTIVED) {
background = &style->active;
text_color = style->text_active;
} else if (*state & NK_WIDGET_STATE_HOVER) {
background = &style->hover;
text_color = style->text_hover;
} else {
background = &style->normal;
text_color = style->text_normal;
}
if (background->type == NK_STYLE_ITEM_IMAGE)
background_color = nk_rgba(0,0,0,0);
else
background_color = background->data.color;
nk_edit_draw_text(out, style, area.x - edit->scrollbar.x,
area.y - edit->scrollbar.y, 0, begin, l, row_height, font,
background_color, text_color, nk_false);
}
nk_push_scissor(out, old_clip);}
return ret;
}
NK_API void
nk_edit_focus(struct nk_context *ctx, nk_flags flags)
{
nk_hash hash;
struct nk_window *win;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
if (!ctx || !ctx->current) return;
win = ctx->current;
hash = win->edit.seq;
win->edit.active = nk_true;
win->edit.name = hash;
if (flags & NK_EDIT_ALWAYS_INSERT_MODE)
win->edit.mode = NK_TEXT_EDIT_MODE_INSERT;
}
NK_API void
nk_edit_unfocus(struct nk_context *ctx)
{
struct nk_window *win;
NK_ASSERT(ctx);
NK_ASSERT(ctx->current);
if (!ctx || !ctx->current) return;
win = ctx->current;
win->edit.active = nk_false;
win->edit.name = 0;
}
NK_API nk_flags
nk_edit_string(struct nk_context *ctx, nk_flags flags,
char *memory, int *len, int max, nk_plugin_filter filter)
{
nk_hash hash;
nk_flags state;
struct nk_text_edit *edit;
struct nk_window *win;
NK_ASSERT(ctx);
NK_ASSERT(memory);
NK_ASSERT(len);
if (!ctx || !memory || !len)
return 0;
filter = (!filter) ? nk_filter_default: filter;
win = ctx->current;
hash = win->edit.seq;
edit = &ctx->text_edit;
nk_textedit_clear_state(&ctx->text_edit, (flags & NK_EDIT_MULTILINE)?
NK_TEXT_EDIT_MULTI_LINE: NK_TEXT_EDIT_SINGLE_LINE, filter);
if (win->edit.active && hash == win->edit.name) {
if (flags & NK_EDIT_NO_CURSOR)
edit->cursor = nk_utf_len(memory, *len);
else edit->cursor = win->edit.cursor;
if (!(flags & NK_EDIT_SELECTABLE)) {
edit->select_start = win->edit.cursor;
edit->select_end = win->edit.cursor;
} else {
edit->select_start = win->edit.sel_start;
edit->select_end = win->edit.sel_end;
}
edit->mode = win->edit.mode;
edit->scrollbar.x = (float)win->edit.scrollbar.x;
edit->scrollbar.y = (float)win->edit.scrollbar.y;
edit->active = nk_true;
} else edit->active = nk_false;
max = NK_MAX(1, max);
*len = NK_MIN(*len, max-1);
nk_str_init_fixed(&edit->string, memory, (nk_size)max);
edit->string.buffer.allocated = (nk_size)*len;
edit->string.len = nk_utf_len(memory, *len);
state = nk_edit_buffer(ctx, flags, edit, filter);
*len = (int)edit->string.buffer.allocated;
if (edit->active) {
win->edit.cursor = edit->cursor;
win->edit.sel_start = edit->select_start;
win->edit.sel_end = edit->select_end;
win->edit.mode = edit->mode;
win->edit.scrollbar.x = (nk_uint)edit->scrollbar.x;
win->edit.scrollbar.y = (nk_uint)edit->scrollbar.y;
} return state;
}
NK_API nk_flags
nk_edit_buffer(struct nk_context *ctx, nk_flags flags,
struct nk_text_edit *edit, nk_plugin_filter filter)
{
struct nk_window *win;
struct nk_style *style;
struct nk_input *in;
enum nk_widget_layout_states state;
struct nk_rect bounds;
nk_flags ret_flags = 0;
unsigned char prev_state;
nk_hash hash;
/* make sure correct values */
NK_ASSERT(ctx);
NK_ASSERT(edit);
NK_ASSERT(ctx->current);
NK_ASSERT(ctx->current->layout);
if (!ctx || !ctx->current || !ctx->current->layout)
return 0;
win = ctx->current;
style = &ctx->style;
state = nk_widget(&bounds, ctx);
if (!state) return state;
in = (win->layout->flags & NK_WINDOW_ROM) ? 0 : &ctx->input;
/* check if edit is currently hot item */
hash = win->edit.seq++;
if (win->edit.active && hash == win->edit.name) {
if (flags & NK_EDIT_NO_CURSOR)
edit->cursor = edit->string.len;
if (!(flags & NK_EDIT_SELECTABLE)) {
edit->select_start = edit->cursor;
edit->select_end = edit->cursor;
}
if (flags & NK_EDIT_CLIPBOARD)
edit->clip = ctx->clip;
edit->active = (unsigned char)win->edit.active;
} else edit->active = nk_false;
edit->mode = win->edit.mode;
filter = (!filter) ? nk_filter_default: filter;
prev_state = (unsigned char)edit->active;
in = (flags & NK_EDIT_READ_ONLY) ? 0: in;
ret_flags = nk_do_edit(&ctx->last_widget_state, &win->buffer, bounds, flags,
filter, edit, &style->edit, in, style->font);
if (ctx->last_widget_state & NK_WIDGET_STATE_HOVER)
ctx->style.cursor_active = ctx->style.cursors[NK_CURSOR_TEXT];
if (edit->active && prev_state != edit->active) {
/* current edit is now hot */
win->edit.active = nk_true;
win->edit.name = hash;
} else if (prev_state && !edit->active) {
/* current edit is now cold */
win->edit.active = nk_false;
} return ret_flags;
}
NK_API nk_flags
nk_edit_string_zero_terminated(struct nk_context *ctx, nk_flags flags,
char *buffer, int max, nk_plugin_filter filter)
{
nk_flags result;
int len = nk_strlen(buffer);
result = nk_edit_string(ctx, flags, buffer, &len, max, filter);
buffer[NK_MIN(NK_MAX(max-1,0), len)] = '\0';
return result;
}