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Diffstat (limited to 'test/group.cxx')
| -rw-r--r-- | test/group.cxx | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/test/group.cxx b/test/group.cxx new file mode 100644 index 000000000..2e661f560 --- /dev/null +++ b/test/group.cxx @@ -0,0 +1,148 @@ +// +// Fl_Group manipulation test program for the Fast Light Tool Kit (FLTK). +// +// Copyright 2024 by Bill Spitzak and others. +// +// This library is free software. Distribution and use rights are outlined in +// the file "COPYING" which should have been included with this file. If this +// file is missing or damaged, see the license at: +// +// https://www.fltk.org/COPYING.php +// +// Please see the following page on how to report bugs and issues: +// +// https://www.fltk.org/bugs.php +// + +// This test program creates two groups and moves widgets around +// between groups to test insert, append, remove, etc.. + +#include <FL/Fl_Double_Window.H> +#include <FL/Fl_Box.H> +#include <FL/Fl_Button.H> +#include <FL/Fl_Flex.H> +#include <FL/Fl_Terminal.H> + +// #include <vector> + +// Globals for easier testing + +const int ww = 520; // window width +const int wh = 200; // window height (w/o button and terminal) +const int th = 200; // initial terminal (tty) height + +Fl_Double_Window *window; +Fl_Flex *g1, *g2; +Fl_Box *b1, *b2, *b3, *b4; +Fl_Terminal *tty; + +void debug_group(Fl_Group *g) { + const int nc = g->children(); + tty->printf("%s has %2d child%s\n", g->label(), nc, nc == 1 ? "" : "ren"); + for (int i = 0; i < g->children(); i++) { + Fl_Widget *w = g->child(i); + const char *lbl = w ? w->label() : ""; +#if (0) // full info with child address + tty->printf(" Child[%2d] (%p) = %s\n", i, (void *)w, lbl); +#else // short info + tty->printf(" Child[%2d] = %s\n", i, lbl); +#endif + } +} + +// This button callback exercises multiple Fl_Group operations in a circle. +// Note to devs: make sure that the last action restores the original layout. + +void button_cb(Fl_Widget *, void *) { + static int move = 0; + move++; + tty->printf("\nMove %2d:\n", move); + switch(move) { + case 1: g1->insert(*b3, 0); break; + case 2: g1->insert(*b3, 2); break; + case 3: g1->insert(*b2, 1); break; + case 4: g1->insert(*b1, 5); break; + case 5: g1->insert(*b1, 1); break; + case 6: g1->insert(*b4, 3); break; + case 7: g1->insert(*b3, 2); break; // no-op (same position) + case 8: g2->add(b3); break; + case 9: g2->add(b3); break; // no-op (same position) + case 10: g2->add(b4); break; + case 11: g1->remove(b2); break; + case 12: g1->add(b2); move = 0; break; // last move: reset counter + default: move = 0; break; // safety: reset counter + } + debug_group(g1); + debug_group(g2); + g1->layout(); + g2->layout(); + window->redraw(); +} + +int main(int argc, char **argv) { + window = new Fl_Double_Window(ww, wh + th + 100, "Fl_Group Test"); + + g1 = new Fl_Flex(50, 20, ww - 80, wh / 2 - 20, "g1: "); + g1->type(Fl_Flex::HORIZONTAL); + g1->box(FL_FLAT_BOX); + g1->color(FL_WHITE); + g1->align(FL_ALIGN_LEFT); + + b1 = new Fl_Box(0, 0, 0, 0, "b1"); + b1->box(FL_FLAT_BOX); + b1->color(FL_RED); + + b2 = new Fl_Box(0, 0, 0, 0, "b2"); + b2->box(FL_FLAT_BOX); + b2->color(FL_GREEN); + + g1->end(); + + g2 = new Fl_Flex(50, wh / 2 + 20, ww - 80, wh / 2 - 20, "g2: "); + g2->type(Fl_Flex::HORIZONTAL); + g2->box(FL_FLAT_BOX); + g2->color(FL_WHITE); + g2->align(FL_ALIGN_LEFT); + + b3 = new Fl_Box(0, 0, 0, 0, "b3"); + b3->box(FL_FLAT_BOX); + b3->color(FL_BLUE); + b3->labelcolor(FL_WHITE); + + b4 = new Fl_Box(0, 0, 0, 0, "b4"); + b4->box(FL_FLAT_BOX); + b4->color(FL_YELLOW); + + g2->end(); + + auto bt = new Fl_Button(10, wh + 20, ww - 20, 40, "Move children ..."); + bt->callback(button_cb); + + tty = new Fl_Terminal(10, wh + 80, ww - 20, th); + + window->end(); + window->resizable(tty); + window->size_range(window->w(), window->h()); + window->show(argc, argv); + + tty->printf("sizeof(Fl_Widget) = %3d\n", (int)sizeof(Fl_Widget)); + tty->printf("sizeof(Fl_Box) = %3d\n", (int)sizeof(Fl_Box)); + tty->printf("sizeof(Fl_Button) = %3d\n", (int)sizeof(Fl_Button)); + tty->printf("sizeof(Fl_Group) = %3d\n", (int)sizeof(Fl_Group)); + tty->printf("sizeof(Fl_Window) = %3d\n", (int)sizeof(Fl_Window)); + + int idx = g2->children() + 3; + tty->printf("child(n) out of range: g2->child(%d) = %p, children = %d\n", + idx, (void *)g2->child(idx), g2->children()); + + int ret = Fl::run(); + + // reset pointers to give memory checkers a chance to test for leaks + g1 = g2 = nullptr; + tty = nullptr; + b1 = b2 = b3 = b4 = nullptr; + bt = nullptr; + delete window; + + return ret; +} |