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Diffstat (limited to 'src/Fl_Search_Chooser.cxx')
-rw-r--r-- | src/Fl_Search_Chooser.cxx | 129 |
1 files changed, 129 insertions, 0 deletions
diff --git a/src/Fl_Search_Chooser.cxx b/src/Fl_Search_Chooser.cxx new file mode 100644 index 0000000..bfcf7fb --- /dev/null +++ b/src/Fl_Search_Chooser.cxx @@ -0,0 +1,129 @@ +// +// Search Chooser widget for the Fast Light Tool Kit (FLTK). +// +// Copyright by Johannes Hofmann +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Library General Public +// License as published by the Free Software Foundation; either +// version 2 of the License, or (at your option) any later version. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// Library General Public License for more details. +// +// You should have received a copy of the GNU Library General Public +// License along with this library; if not, write to the Free Software +// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 +// USA. +// +// + +#include <stdio.h> +#include <string.h> +#include <FL/Fl_Window.H> +#include <FL/Fl_Button.H> +#include "Fl_Search_Chooser.H" + +int +Fl_Search_Browser::find_prefix(const char *p) { + int i = find_prefix(p, 1, size()); + if (i == -1) { + return 1; + } else { + deselect(); + middleline(i); + select(i); + return 0; + } +}; + +int +Fl_Search_Browser::find_prefix(const char *p, int s, int e) { + if (s < 0 || e > size() || s > e) { + fprintf(stderr, "Invalid search range %d %d\n", s, e); + return 1; + } else if (e - s <= 1) { + if (strncasecmp(p, text(s), strlen(p)) == 0) { + return s; + } else if (strncasecmp(p, text(e), strlen(p)) == 0){ + return e; + } else { + return -1; + } + } else { + int med = s + (e - s) / 2; + if (strncasecmp(p, text(med), strlen(p)) > 0) { + return find_prefix(p, med, e); + } else { + return find_prefix(p, s, med); + } + } +} + + +static void input_cb(Fl_Input* in, void*c) { + Fl_Search_Browser *sb = ((Fl_Search_Chooser *) c)->sb; + sb->find_prefix(in->value()); +} + + +static void ok_cb(Fl_Input* in, void*c) { + Fl_Search_Chooser *sc = (Fl_Search_Chooser *) c; + sc->w->hide(); +} + + +static void cancel_cb(Fl_Input* in, void*c) { + Fl_Search_Chooser *sc = (Fl_Search_Chooser *) c; + sc->sb->deselect(); + sc->w->hide(); +} + +Fl_Search_Chooser::Fl_Search_Chooser(const char *title) { + w = new Fl_Window(320, 320, title?title:"Choose"); + Fl_Group *g = new Fl_Group(10, 10, w->w() - 10, w->h() - 10); + sb = new Fl_Search_Browser(g->x(), g->y(), g->w() , g->h() - 100, NULL); + sb->type(FL_HOLD_BROWSER); + Fl_Input *in = new Fl_Input(g->x(), g->h() - 80, g->w()-10, 20); + in->callback((Fl_Callback*) input_cb, this); + in->when(FL_WHEN_CHANGED); + Fl_Button *cancel_b = new Fl_Button(g->w()-200, g->h()-30, 80, 20, "Cancel"); + cancel_b->callback((Fl_Callback*) cancel_cb, this); + Fl_Button *ok_b = new Fl_Button(g->w()-100, g->h()-30, 80, 20, "Ok"); + ok_b->callback((Fl_Callback*) ok_cb, this); + g->end(); + w->end(); +} + +Fl_Search_Chooser::~Fl_Search_Chooser() { + delete sb; + delete w; +} + +void +Fl_Search_Chooser::add(const char *t, void *d) { + sb->add(t, d); +} + +void * +Fl_Search_Chooser::data() { + int v = sb->value(); + if (v) { + return sb->data(v); + } else { + return NULL; + } +} + +void +Fl_Search_Chooser::show() { + w->show(); +} + +int +Fl_Search_Chooser::shown() { + return w->shown(); +} + |