mirror of https://github.com/vurtun/nuklear.git
807 lines
30 KiB
C
807 lines
30 KiB
C
#include "nuklear.h"
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#include "nuklear_internal.h"
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/* ===============================================================
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*
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* FILTER
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*
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* ===============================================================*/
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NK_API int
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nk_filter_default(const struct nk_text_edit *box, nk_rune unicode)
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{
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NK_UNUSED(unicode);
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NK_UNUSED(box);
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return nk_true;
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}
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NK_API int
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nk_filter_ascii(const struct nk_text_edit *box, nk_rune unicode)
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{
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NK_UNUSED(box);
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if (unicode > 128) return nk_false;
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else return nk_true;
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}
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NK_API int
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nk_filter_float(const struct nk_text_edit *box, nk_rune unicode)
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{
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NK_UNUSED(box);
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if ((unicode < '0' || unicode > '9') && unicode != '.' && unicode != '-')
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return nk_false;
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else return nk_true;
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}
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NK_API int
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nk_filter_decimal(const struct nk_text_edit *box, nk_rune unicode)
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{
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NK_UNUSED(box);
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if ((unicode < '0' || unicode > '9') && unicode != '-')
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return nk_false;
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else return nk_true;
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}
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NK_API int
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nk_filter_hex(const struct nk_text_edit *box, nk_rune unicode)
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{
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NK_UNUSED(box);
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if ((unicode < '0' || unicode > '9') &&
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(unicode < 'a' || unicode > 'f') &&
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(unicode < 'A' || unicode > 'F'))
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return nk_false;
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else return nk_true;
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}
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NK_API int
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nk_filter_oct(const struct nk_text_edit *box, nk_rune unicode)
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{
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NK_UNUSED(box);
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if (unicode < '0' || unicode > '7')
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return nk_false;
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else return nk_true;
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}
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NK_API int
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nk_filter_binary(const struct nk_text_edit *box, nk_rune unicode)
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{
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NK_UNUSED(box);
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if (unicode != '0' && unicode != '1')
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return nk_false;
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else return nk_true;
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}
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/* ===============================================================
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*
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* EDIT
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*
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* ===============================================================*/
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NK_LIB void
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nk_edit_draw_text(struct nk_command_buffer *out,
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const struct nk_style_edit *style, float pos_x, float pos_y,
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float x_offset, const char *text, int byte_len, float row_height,
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const struct nk_user_font *font, struct nk_color background,
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struct nk_color foreground, int is_selected)
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{
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NK_ASSERT(out);
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NK_ASSERT(font);
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NK_ASSERT(style);
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if (!text || !byte_len || !out || !style) return;
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{int glyph_len = 0;
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nk_rune unicode = 0;
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int text_len = 0;
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float line_width = 0;
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float glyph_width;
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const char *line = text;
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float line_offset = 0;
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int line_count = 0;
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struct nk_text txt;
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txt.padding = nk_vec2(0,0);
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txt.background = background;
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txt.text = foreground;
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glyph_len = nk_utf_decode(text+text_len, &unicode, byte_len-text_len);
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if (!glyph_len) return;
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while ((text_len < byte_len) && glyph_len)
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{
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if (unicode == '\n') {
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/* new line separator so draw previous line */
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struct nk_rect label;
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label.y = pos_y + line_offset;
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label.h = row_height;
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label.w = line_width;
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label.x = pos_x;
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if (!line_count)
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label.x += x_offset;
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if (is_selected) /* selection needs to draw different background color */
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nk_fill_rect(out, label, 0, background);
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nk_widget_text(out, label, line, (int)((text + text_len) - line),
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&txt, NK_TEXT_CENTERED, font);
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text_len++;
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line_count++;
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line_width = 0;
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line = text + text_len;
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line_offset += row_height;
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glyph_len = nk_utf_decode(text + text_len, &unicode, (int)(byte_len-text_len));
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continue;
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}
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if (unicode == '\r') {
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text_len++;
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glyph_len = nk_utf_decode(text + text_len, &unicode, byte_len-text_len);
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continue;
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}
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glyph_width = font->width(font->userdata, font->height, text+text_len, glyph_len);
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line_width += (float)glyph_width;
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text_len += glyph_len;
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glyph_len = nk_utf_decode(text + text_len, &unicode, byte_len-text_len);
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continue;
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}
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if (line_width > 0) {
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/* draw last line */
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struct nk_rect label;
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label.y = pos_y + line_offset;
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label.h = row_height;
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label.w = line_width;
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label.x = pos_x;
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if (!line_count)
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label.x += x_offset;
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if (is_selected)
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nk_fill_rect(out, label, 0, background);
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nk_widget_text(out, label, line, (int)((text + text_len) - line),
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&txt, NK_TEXT_LEFT, font);
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}}
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}
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NK_LIB nk_flags
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nk_do_edit(nk_flags *state, struct nk_command_buffer *out,
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struct nk_rect bounds, nk_flags flags, nk_plugin_filter filter,
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struct nk_text_edit *edit, const struct nk_style_edit *style,
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struct nk_input *in, const struct nk_user_font *font)
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{
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struct nk_rect area;
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nk_flags ret = 0;
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float row_height;
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char prev_state = 0;
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char is_hovered = 0;
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char select_all = 0;
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char cursor_follow = 0;
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struct nk_rect old_clip;
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struct nk_rect clip;
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NK_ASSERT(state);
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NK_ASSERT(out);
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NK_ASSERT(style);
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if (!state || !out || !style)
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return ret;
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/* visible text area calculation */
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area.x = bounds.x + style->padding.x + style->border;
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area.y = bounds.y + style->padding.y + style->border;
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area.w = bounds.w - (2.0f * style->padding.x + 2 * style->border);
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area.h = bounds.h - (2.0f * style->padding.y + 2 * style->border);
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if (flags & NK_EDIT_MULTILINE)
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area.w = NK_MAX(0, area.w - style->scrollbar_size.x);
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row_height = (flags & NK_EDIT_MULTILINE)? font->height + style->row_padding: area.h;
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/* calculate clipping rectangle */
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old_clip = out->clip;
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nk_unify(&clip, &old_clip, area.x, area.y, area.x + area.w, area.y + area.h);
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/* update edit state */
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prev_state = (char)edit->active;
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is_hovered = (char)nk_input_is_mouse_hovering_rect(in, bounds);
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if (in && in->mouse.buttons[NK_BUTTON_LEFT].clicked && in->mouse.buttons[NK_BUTTON_LEFT].down) {
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edit->active = NK_INBOX(in->mouse.pos.x, in->mouse.pos.y,
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bounds.x, bounds.y, bounds.w, bounds.h);
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}
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/* (de)activate text editor */
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if (!prev_state && edit->active) {
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const enum nk_text_edit_type type = (flags & NK_EDIT_MULTILINE) ?
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NK_TEXT_EDIT_MULTI_LINE: NK_TEXT_EDIT_SINGLE_LINE;
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nk_textedit_clear_state(edit, type, filter);
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if (flags & NK_EDIT_AUTO_SELECT)
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select_all = nk_true;
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if (flags & NK_EDIT_GOTO_END_ON_ACTIVATE) {
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edit->cursor = edit->string.len;
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in = 0;
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}
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} else if (!edit->active) edit->mode = NK_TEXT_EDIT_MODE_VIEW;
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if (flags & NK_EDIT_READ_ONLY)
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edit->mode = NK_TEXT_EDIT_MODE_VIEW;
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else if (flags & NK_EDIT_ALWAYS_INSERT_MODE)
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edit->mode = NK_TEXT_EDIT_MODE_INSERT;
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ret = (edit->active) ? NK_EDIT_ACTIVE: NK_EDIT_INACTIVE;
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if (prev_state != edit->active)
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ret |= (edit->active) ? NK_EDIT_ACTIVATED: NK_EDIT_DEACTIVATED;
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/* handle user input */
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if (edit->active && in)
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{
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int shift_mod = in->keyboard.keys[NK_KEY_SHIFT].down;
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const float mouse_x = (in->mouse.pos.x - area.x) + edit->scrollbar.x;
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const float mouse_y = (in->mouse.pos.y - area.y) + edit->scrollbar.y;
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/* mouse click handler */
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is_hovered = (char)nk_input_is_mouse_hovering_rect(in, area);
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if (select_all) {
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nk_textedit_select_all(edit);
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} else if (is_hovered && in->mouse.buttons[NK_BUTTON_LEFT].down &&
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in->mouse.buttons[NK_BUTTON_LEFT].clicked) {
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nk_textedit_click(edit, mouse_x, mouse_y, font, row_height);
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} else if (is_hovered && in->mouse.buttons[NK_BUTTON_LEFT].down &&
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(in->mouse.delta.x != 0.0f || in->mouse.delta.y != 0.0f)) {
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nk_textedit_drag(edit, mouse_x, mouse_y, font, row_height);
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cursor_follow = nk_true;
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} else if (is_hovered && in->mouse.buttons[NK_BUTTON_RIGHT].clicked &&
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in->mouse.buttons[NK_BUTTON_RIGHT].down) {
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nk_textedit_key(edit, NK_KEY_TEXT_WORD_LEFT, nk_false, font, row_height);
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nk_textedit_key(edit, NK_KEY_TEXT_WORD_RIGHT, nk_true, font, row_height);
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cursor_follow = nk_true;
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}
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{int i; /* keyboard input */
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int old_mode = edit->mode;
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for (i = 0; i < NK_KEY_MAX; ++i) {
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if (i == NK_KEY_ENTER || i == NK_KEY_TAB) continue; /* special case */
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if (nk_input_is_key_pressed(in, (enum nk_keys)i)) {
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nk_textedit_key(edit, (enum nk_keys)i, shift_mod, font, row_height);
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cursor_follow = nk_true;
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}
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}
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if (old_mode != edit->mode) {
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in->keyboard.text_len = 0;
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}}
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/* text input */
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edit->filter = filter;
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if (in->keyboard.text_len) {
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nk_textedit_text(edit, in->keyboard.text, in->keyboard.text_len);
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cursor_follow = nk_true;
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in->keyboard.text_len = 0;
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}
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/* enter key handler */
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if (nk_input_is_key_pressed(in, NK_KEY_ENTER)) {
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cursor_follow = nk_true;
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if (flags & NK_EDIT_CTRL_ENTER_NEWLINE && shift_mod)
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nk_textedit_text(edit, "\n", 1);
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else if (flags & NK_EDIT_SIG_ENTER)
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ret |= NK_EDIT_COMMITED;
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else nk_textedit_text(edit, "\n", 1);
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}
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/* cut & copy handler */
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{int copy= nk_input_is_key_pressed(in, NK_KEY_COPY);
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int cut = nk_input_is_key_pressed(in, NK_KEY_CUT);
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if ((copy || cut) && (flags & NK_EDIT_CLIPBOARD))
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{
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int glyph_len;
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nk_rune unicode;
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const char *text;
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int b = edit->select_start;
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int e = edit->select_end;
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int begin = NK_MIN(b, e);
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int end = NK_MAX(b, e);
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text = nk_str_at_const(&edit->string, begin, &unicode, &glyph_len);
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if (edit->clip.copy)
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edit->clip.copy(edit->clip.userdata, text, end - begin);
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if (cut && !(flags & NK_EDIT_READ_ONLY)){
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nk_textedit_cut(edit);
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cursor_follow = nk_true;
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}
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}}
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/* paste handler */
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{int paste = nk_input_is_key_pressed(in, NK_KEY_PASTE);
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if (paste && (flags & NK_EDIT_CLIPBOARD) && edit->clip.paste) {
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edit->clip.paste(edit->clip.userdata, edit);
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cursor_follow = nk_true;
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}}
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/* tab handler */
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{int tab = nk_input_is_key_pressed(in, NK_KEY_TAB);
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if (tab && (flags & NK_EDIT_ALLOW_TAB)) {
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nk_textedit_text(edit, " ", 4);
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cursor_follow = nk_true;
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}}
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}
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/* set widget state */
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if (edit->active)
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*state = NK_WIDGET_STATE_ACTIVE;
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else nk_widget_state_reset(state);
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if (is_hovered)
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*state |= NK_WIDGET_STATE_HOVERED;
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/* DRAW EDIT */
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{const char *text = nk_str_get_const(&edit->string);
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int len = nk_str_len_char(&edit->string);
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{/* select background colors/images */
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const struct nk_style_item *background;
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if (*state & NK_WIDGET_STATE_ACTIVED)
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background = &style->active;
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else if (*state & NK_WIDGET_STATE_HOVER)
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background = &style->hover;
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else background = &style->normal;
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/* draw background frame */
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if (background->type == NK_STYLE_ITEM_COLOR) {
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nk_stroke_rect(out, bounds, style->rounding, style->border, style->border_color);
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nk_fill_rect(out, bounds, style->rounding, background->data.color);
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} else nk_draw_image(out, bounds, &background->data.image, nk_white);}
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area.w = NK_MAX(0, area.w - style->cursor_size);
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if (edit->active)
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{
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int total_lines = 1;
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struct nk_vec2 text_size = nk_vec2(0,0);
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/* text pointer positions */
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const char *cursor_ptr = 0;
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const char *select_begin_ptr = 0;
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const char *select_end_ptr = 0;
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/* 2D pixel positions */
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struct nk_vec2 cursor_pos = nk_vec2(0,0);
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struct nk_vec2 selection_offset_start = nk_vec2(0,0);
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struct nk_vec2 selection_offset_end = nk_vec2(0,0);
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int selection_begin = NK_MIN(edit->select_start, edit->select_end);
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int selection_end = NK_MAX(edit->select_start, edit->select_end);
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/* calculate total line count + total space + cursor/selection position */
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float line_width = 0.0f;
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if (text && len)
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{
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/* utf8 encoding */
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float glyph_width;
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int glyph_len = 0;
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nk_rune unicode = 0;
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int text_len = 0;
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int glyphs = 0;
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int row_begin = 0;
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glyph_len = nk_utf_decode(text, &unicode, len);
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glyph_width = font->width(font->userdata, font->height, text, glyph_len);
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line_width = 0;
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/* iterate all lines */
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while ((text_len < len) && glyph_len)
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{
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/* set cursor 2D position and line */
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if (!cursor_ptr && glyphs == edit->cursor)
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{
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int glyph_offset;
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struct nk_vec2 out_offset;
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struct nk_vec2 row_size;
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const char *remaining;
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/* calculate 2d position */
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cursor_pos.y = (float)(total_lines-1) * row_height;
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row_size = nk_text_calculate_text_bounds(font, text+row_begin,
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text_len-row_begin, row_height, &remaining,
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&out_offset, &glyph_offset, NK_STOP_ON_NEW_LINE);
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cursor_pos.x = row_size.x;
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cursor_ptr = text + text_len;
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}
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/* set start selection 2D position and line */
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if (!select_begin_ptr && edit->select_start != edit->select_end &&
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glyphs == selection_begin)
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{
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int glyph_offset;
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struct nk_vec2 out_offset;
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struct nk_vec2 row_size;
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const char *remaining;
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/* calculate 2d position */
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selection_offset_start.y = (float)(NK_MAX(total_lines-1,0)) * row_height;
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row_size = nk_text_calculate_text_bounds(font, text+row_begin,
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text_len-row_begin, row_height, &remaining,
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&out_offset, &glyph_offset, NK_STOP_ON_NEW_LINE);
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selection_offset_start.x = row_size.x;
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select_begin_ptr = text + text_len;
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}
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/* set end selection 2D position and line */
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if (!select_end_ptr && edit->select_start != edit->select_end &&
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glyphs == selection_end)
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{
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int glyph_offset;
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struct nk_vec2 out_offset;
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struct nk_vec2 row_size;
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const char *remaining;
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/* calculate 2d position */
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selection_offset_end.y = (float)(total_lines-1) * row_height;
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row_size = nk_text_calculate_text_bounds(font, text+row_begin,
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text_len-row_begin, row_height, &remaining,
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&out_offset, &glyph_offset, NK_STOP_ON_NEW_LINE);
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selection_offset_end.x = row_size.x;
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select_end_ptr = text + text_len;
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}
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if (unicode == '\n') {
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text_size.x = NK_MAX(text_size.x, line_width);
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total_lines++;
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line_width = 0;
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text_len++;
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glyphs++;
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row_begin = text_len;
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glyph_len = nk_utf_decode(text + text_len, &unicode, len-text_len);
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glyph_width = font->width(font->userdata, font->height, text+text_len, glyph_len);
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continue;
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}
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glyphs++;
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text_len += glyph_len;
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line_width += (float)glyph_width;
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glyph_len = nk_utf_decode(text + text_len, &unicode, len-text_len);
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glyph_width = font->width(font->userdata, font->height,
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text+text_len, glyph_len);
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continue;
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}
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text_size.y = (float)total_lines * row_height;
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/* handle case when cursor is at end of text buffer */
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if (!cursor_ptr && edit->cursor == edit->string.len) {
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cursor_pos.x = line_width;
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cursor_pos.y = text_size.y - row_height;
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}
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}
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{
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/* scrollbar */
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if (cursor_follow)
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{
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/* update scrollbar to follow cursor */
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if (!(flags & NK_EDIT_NO_HORIZONTAL_SCROLL)) {
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/* horizontal scroll */
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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, edit->scrollbar.x + 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 + area.h)
|
|
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;
|
|
}
|
|
|