diff options
Diffstat (limited to 'test')
| -rw-r--r-- | test/grid_dialog.cxx | 150 |
1 files changed, 150 insertions, 0 deletions
diff --git a/test/grid_dialog.cxx b/test/grid_dialog.cxx new file mode 100644 index 000000000..fa34d7713 --- /dev/null +++ b/test/grid_dialog.cxx @@ -0,0 +1,150 @@ +// +// Fl_Grid based dialog window for the Fast Light Tool Kit (FLTK). +// +// Copyright 2023 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 demo program builds a flexible layout of a dialog similar +// to fl_ask(), fl_choice(), and others. +// +// For <N> buttons we use an Fl_Grid with 2 rows and <N+2> columns: +// - Cell (0, 0) (III) holds an icon (top left cell) +// - Cell (0, 1) holds the message text; spans <N+1> columns +// - Cell (1, n) holds buttons (2 <= n <= <N+1>) +// - Column 1 (XX) is the resizable column; not used for buttons +// - Column 2+ is used for buttons +// _________________________________________________ +// | | +// | III Some message text ... ... ... ... ... ... | +// | III more message text ... ... ... ... ... ... | +// | III more message text ... ... ... ... ... ... | +// | more message text ... ... ... ... ... ... | +// | more message text ... ... ... ... ... ... | +// | XX +––––––––+ +––––+ | +// | XX [more buttons ...] | Cancel | | OK | | +// | XX +––––––––+ +––––+ | +// |_________________________________________________| + +#include <FL/Fl.H> +#include <FL/Fl_Double_Window.H> +#include <FL/Fl_Grid.H> +#include <FL/Fl_Button.H> +#include <FL/Fl_Box.H> + +static const int ROWS = 2; +static const int BUTTONS = 4; // default = 4, use 1 to 5 to test +static const int COLS = BUTTONS + 2; +static const int BUTTON_H = 25; +static const int ICON_W = 60; +static const int ICON_H = 70; +static const int MARGIN = 10; +static const int GAP = 8; + +// Button labels (left to right) +static const char *labels[5] = { + "Quit", "Copy", "Cancel", "OK", "More ..." }; + +// button widths (left to right) to avoid font calculations +static const int button_w[5] = { 50, 50, 70, 40, 100}; + +static int col_weights[] = { 0, 100, 0, 0, 0, 0, 0 }; +static int row_weights[] = { 100, 0, 0, 0, 0, 0, 0 }; + +static const char *message_text = + "This is a long message in an Fl_Grid based dialog " + "that may wrap over more than one line. " + "Resize the window to see how it (un)wraps.\n"; + +Fl_Box *message_box = 0; + +// Common button callback + +void button_cb(Fl_Widget *w, void *v) { + int val = fl_int(v); + printf("Button %d: '%s'\n", val, w->label()); + switch(val) { + case 0: // Quit + w->window()->hide(); + break; + case 1: { // Copy + const char *text = message_box->label(); + const int len = strlen(text); + Fl::copy(text, len, 1); + } + printf("Message copied to clipboard.\n"); + break; + default: + break; + } + fflush(stdout); +} + +int main(int argc, char **argv) { + + int min_w = ICON_W + 2 * MARGIN + (BUTTONS + 1) * GAP; + int min_h = ICON_H + 10 + 2 * MARGIN + GAP + BUTTON_H; + + for (int i = 0; i < BUTTONS; i++) { + min_w += button_w[i]; + } + + Fl_Double_Window *win = new Fl_Double_Window(min_w, min_h, "Fl_Grid Based Dialog"); + + Fl_Grid *grid = new Fl_Grid(0, 0, win->w(), win->h()); + grid->layout(ROWS, COLS, 10, 6); + grid->color(FL_WHITE); + + // Child 0: Fl_Box for the "icon" or image (fixed size) + + Fl_Box *icon = new Fl_Box(0, 0, ICON_W, ICON_H, "ICON"); + icon->box(FL_THIN_UP_BOX); + icon->color(0xddffff00); + icon->align(FL_ALIGN_CENTER|FL_ALIGN_INSIDE|FL_ALIGN_CLIP); + grid->widget(icon, 0, 0, 1, 1, FL_GRID_TOP); + + // Child 1: the message box + + message_box = new Fl_Box(0, 0, 0, 0); + message_box->label(message_text); + message_box->align(FL_ALIGN_TOP|FL_ALIGN_INSIDE|FL_ALIGN_WRAP); + grid->widget(message_box, 0, 1, 1, BUTTONS + 1, FL_GRID_FILL); + + // Children 2++: the buttons (left to right for tab nav. order) + + for (int i = 0; i < BUTTONS; i++) { + Fl_Button *b = new Fl_Button(0, 0, button_w[i], BUTTON_H, labels[i]); + grid->widget(b, 1, i + 2); + b->callback(button_cb, fl_voidptr(i)); + if (i == 1) + b->tooltip("Copy message text to clipboard."); + } + + grid->end(); + + // set row and column weights for resizing + + grid->row_weight(row_weights, ROWS); + grid->col_weight(col_weights, COLS); + + // Set environment variable "FLTK_GRID_DEBUG=1" or uncomment this line: + // grid->show_grid(1); // enable to display grid helper lines + + win->end(); + win->resizable(grid); + win->size_range(min_w, min_h, 3 * min_w, min_h + 50); + win->show(argc, argv); + + int ret = Fl::run(); + delete win; // not necessary but useful to test for memory leaks + return ret; +} |