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stb_textedit.h updated to 1.8 (our two main changes were merged now)
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ocornut
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@ -1,8 +1,4 @@
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// [ImGui] this is a slightly modified version of stb_truetype.h 1.4
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// [ImGui] we made a fix for using the END key on multi-line text edit, see https://github.com/ocornut/imgui/issues/275
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// [ImGui] we made a fix for using keyboard while using mouse, see https://github.com/nothings/stb/pull/209
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// stb_textedit.h - v1.4 - public domain - Sean Barrett
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// stb_textedit.h - v1.8 - public domain - Sean Barrett
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// Development of this library was sponsored by RAD Game Tools
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//
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// This C header file implements the guts of a multi-line text-editing
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@ -21,19 +17,24 @@
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//
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// LICENSE
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//
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// This software has been placed in the public domain by its author.
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// Where that dedication is not recognized, you are granted a perpetual,
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// irrevocable license to copy and modify this file as you see fit.
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// This software is dual-licensed to the public domain and under the following
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// license: you are granted a perpetual, irrevocable license to copy, modify,
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// publish, and distribute this file as you see fit.
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//
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//
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// DEPENDENCIES
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//
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// Uses the C runtime function 'memmove'. Uses no other functions.
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// Performs no runtime allocations.
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// Uses the C runtime function 'memmove', which you can override
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// by defining STB_TEXTEDIT_memmove before the implementation.
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// Uses no other functions. Performs no runtime allocations.
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//
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//
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// VERSION HISTORY
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//
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// 1.8 (2016-04-02) better keyboard handling when mouse button is down
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// 1.7 (2015-09-13) change y range handling in case baseline is non-0
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// 1.6 (2015-04-15) allow STB_TEXTEDIT_memmove
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// 1.5 (2014-09-10) add support for secondary keys for OS X
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// 1.4 (2014-08-17) fix signed/unsigned warnings
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// 1.3 (2014-06-19) fix mouse clicking to round to nearest char boundary
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// 1.2 (2014-05-27) fix some RAD types that had crept into the new code
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@ -46,7 +47,13 @@
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// ADDITIONAL CONTRIBUTORS
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//
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// Ulf Winklemann: move-by-word in 1.1
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// Scott Graham: mouse selection bugfix in 1.3
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// Fabian Giesen: secondary key inputs in 1.5
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// Martins Mozeiko: STB_TEXTEDIT_memmove
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//
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// Bugfixes:
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// Scott Graham
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// Daniel Keller
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// Omar Cornut
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//
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// USAGE
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//
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@ -146,6 +153,10 @@
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// required for WORDLEFT/WORDRIGHT
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// STB_TEXTEDIT_K_WORDLEFT keyboard input to move cursor left one word // e.g. ctrl-LEFT
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// STB_TEXTEDIT_K_WORDRIGHT keyboard input to move cursor right one word // e.g. ctrl-RIGHT
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// STB_TEXTEDIT_K_LINESTART2 secondary keyboard input to move cursor to start of line
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// STB_TEXTEDIT_K_LINEEND2 secondary keyboard input to move cursor to end of line
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// STB_TEXTEDIT_K_TEXTSTART2 secondary keyboard input to move cursor to start of text
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// STB_TEXTEDIT_K_TEXTEND2 secondary keyboard input to move cursor to end of text
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//
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// Todo:
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// STB_TEXTEDIT_K_PGUP keyboard input to move cursor up a page
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@ -356,7 +367,10 @@ typedef struct
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// included just the "header" portion
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#ifdef STB_TEXTEDIT_IMPLEMENTATION
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#include <string.h> // memmove
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#ifndef STB_TEXTEDIT_memmove
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#include <string.h>
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#define STB_TEXTEDIT_memmove memmove
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#endif
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/////////////////////////////////////////////////////////////////////////////
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@ -372,9 +386,6 @@ static int stb_text_locate_coord(STB_TEXTEDIT_STRING *str, float x, float y)
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float base_y = 0, prev_x;
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int i=0, k;
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if (y < 0)
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return 0;
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r.x0 = r.x1 = 0;
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r.ymin = r.ymax = 0;
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r.num_chars = 0;
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@ -385,6 +396,9 @@ static int stb_text_locate_coord(STB_TEXTEDIT_STRING *str, float x, float y)
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if (r.num_chars <= 0)
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return n;
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if (i==0 && y < base_y + r.ymin)
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return 0;
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if (y < base_y + r.ymax)
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break;
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@ -923,23 +937,35 @@ retry:
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state->has_preferred_x = 0;
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break;
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#ifdef STB_TEXTEDIT_K_TEXTSTART2
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case STB_TEXTEDIT_K_TEXTSTART2:
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#endif
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case STB_TEXTEDIT_K_TEXTSTART:
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state->cursor = state->select_start = state->select_end = 0;
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state->has_preferred_x = 0;
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break;
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#ifdef STB_TEXTEDIT_K_TEXTEND2
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case STB_TEXTEDIT_K_TEXTEND2:
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#endif
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case STB_TEXTEDIT_K_TEXTEND:
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state->cursor = STB_TEXTEDIT_STRINGLEN(str);
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state->select_start = state->select_end = 0;
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state->has_preferred_x = 0;
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break;
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#ifdef STB_TEXTEDIT_K_TEXTSTART2
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case STB_TEXTEDIT_K_TEXTSTART2 | STB_TEXTEDIT_K_SHIFT:
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#endif
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case STB_TEXTEDIT_K_TEXTSTART | STB_TEXTEDIT_K_SHIFT:
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stb_textedit_prep_selection_at_cursor(state);
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state->cursor = state->select_end = 0;
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state->has_preferred_x = 0;
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break;
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#ifdef STB_TEXTEDIT_K_TEXTEND2
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case STB_TEXTEDIT_K_TEXTEND2 | STB_TEXTEDIT_K_SHIFT:
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#endif
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case STB_TEXTEDIT_K_TEXTEND | STB_TEXTEDIT_K_SHIFT:
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stb_textedit_prep_selection_at_cursor(state);
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state->cursor = state->select_end = STB_TEXTEDIT_STRINGLEN(str);
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@ -947,6 +973,9 @@ retry:
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break;
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#ifdef STB_TEXTEDIT_K_LINESTART2
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case STB_TEXTEDIT_K_LINESTART2:
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#endif
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case STB_TEXTEDIT_K_LINESTART: {
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StbFindState find;
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stb_textedit_clamp(str, state);
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@ -957,18 +986,25 @@ retry:
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break;
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}
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#ifdef STB_TEXTEDIT_K_LINEEND2
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case STB_TEXTEDIT_K_LINEEND2:
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#endif
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case STB_TEXTEDIT_K_LINEEND: {
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StbFindState find;
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stb_textedit_clamp(str, state);
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stb_textedit_move_to_first(state);
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stb_textedit_find_charpos(&find, str, state->cursor, state->single_line);
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state->has_preferred_x = 0;
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state->cursor = find.first_char + find.length;
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if (find.length > 0 && STB_TEXTEDIT_GETCHAR(str, state->cursor-1) == STB_TEXTEDIT_NEWLINE)
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state->cursor--;
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state->has_preferred_x = 0;
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--state->cursor;
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break;
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}
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#ifdef STB_TEXTEDIT_K_LINESTART2
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case STB_TEXTEDIT_K_LINESTART2 | STB_TEXTEDIT_K_SHIFT:
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#endif
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case STB_TEXTEDIT_K_LINESTART | STB_TEXTEDIT_K_SHIFT: {
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StbFindState find;
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stb_textedit_clamp(str, state);
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@ -979,15 +1015,19 @@ retry:
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break;
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}
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#ifdef STB_TEXTEDIT_K_LINEEND2
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case STB_TEXTEDIT_K_LINEEND2 | STB_TEXTEDIT_K_SHIFT:
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#endif
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case STB_TEXTEDIT_K_LINEEND | STB_TEXTEDIT_K_SHIFT: {
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StbFindState find;
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stb_textedit_clamp(str, state);
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stb_textedit_prep_selection_at_cursor(state);
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stb_textedit_find_charpos(&find, str, state->cursor, state->single_line);
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state->cursor = state->select_end = find.first_char + find.length;
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if (find.length > 0 && STB_TEXTEDIT_GETCHAR(str, state->cursor-1) == STB_TEXTEDIT_NEWLINE)
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state->cursor = state->select_end = state->cursor - 1;
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state->has_preferred_x = 0;
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state->cursor = find.first_char + find.length;
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if (find.length > 0 && STB_TEXTEDIT_GETCHAR(str, state->cursor-1) == STB_TEXTEDIT_NEWLINE)
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--state->cursor;
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state->select_end = state->cursor;
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break;
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}
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@ -1018,13 +1058,13 @@ static void stb_textedit_discard_undo(StbUndoState *state)
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int n = state->undo_rec[0].insert_length, i;
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// delete n characters from all other records
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state->undo_char_point = state->undo_char_point - (short) n; // vsnet05
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memmove(state->undo_char, state->undo_char + n, (size_t) ((size_t)state->undo_char_point*sizeof(STB_TEXTEDIT_CHARTYPE)));
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STB_TEXTEDIT_memmove(state->undo_char, state->undo_char + n, (size_t) (state->undo_char_point*sizeof(STB_TEXTEDIT_CHARTYPE)));
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for (i=0; i < state->undo_point; ++i)
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if (state->undo_rec[i].char_storage >= 0)
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state->undo_rec[i].char_storage = state->undo_rec[i].char_storage - (short) n; // vsnet05 // @OPTIMIZE: get rid of char_storage and infer it
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}
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--state->undo_point;
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memmove(state->undo_rec, state->undo_rec+1, (size_t) ((size_t)state->undo_point*sizeof(state->undo_rec[0])));
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STB_TEXTEDIT_memmove(state->undo_rec, state->undo_rec+1, (size_t) (state->undo_point*sizeof(state->undo_rec[0])));
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}
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}
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@ -1042,13 +1082,13 @@ static void stb_textedit_discard_redo(StbUndoState *state)
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int n = state->undo_rec[k].insert_length, i;
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// delete n characters from all other records
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state->redo_char_point = state->redo_char_point + (short) n; // vsnet05
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memmove(state->undo_char + state->redo_char_point, state->undo_char + state->redo_char_point-n, (size_t) ((size_t)(STB_TEXTEDIT_UNDOSTATECOUNT - state->redo_char_point)*sizeof(STB_TEXTEDIT_CHARTYPE)));
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STB_TEXTEDIT_memmove(state->undo_char + state->redo_char_point, state->undo_char + state->redo_char_point-n, (size_t) ((STB_TEXTEDIT_UNDOSTATECOUNT - state->redo_char_point)*sizeof(STB_TEXTEDIT_CHARTYPE)));
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for (i=state->redo_point; i < k; ++i)
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if (state->undo_rec[i].char_storage >= 0)
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state->undo_rec[i].char_storage = state->undo_rec[i].char_storage + (short) n; // vsnet05
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}
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++state->redo_point;
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memmove(state->undo_rec + state->redo_point-1, state->undo_rec + state->redo_point, (size_t) ((size_t)(STB_TEXTEDIT_UNDOSTATECOUNT - state->redo_point)*sizeof(state->undo_rec[0])));
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STB_TEXTEDIT_memmove(state->undo_rec + state->redo_point-1, state->undo_rec + state->redo_point, (size_t) ((STB_TEXTEDIT_UNDOSTATECOUNT - state->redo_point)*sizeof(state->undo_rec[0])));
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}
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}
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