Redtools requester library

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include "redtools.h"

int main() {
	REDTOOLS rt;

	unsigned int c;

	/* Predefined dialog buttons */
	const char *buttons[] = {
		"Cheese", "Ham", "Prawn", "Tuna", "Plain green",
		NULL
	};

	/* Initialize the redtools library, if returned handle is NULL,
	   initialization was not succesful, and program must not call any
	   redtools functions */

	if((rt = red_initialize()) == NULL) {
		fprintf(stderr,
			"!\n! failed to initialize redtools library\n!\n");

		exit(1);
	}

	/* Add dialog title... */
	(void) red_dialog_add_title(rt,
		"What kind of starter salad would you like?");

	/* ...then the buttons... */
	(void) red_dialog_add_buttons(rt, buttons);

	/* ...and display it to the user */
	c = red_question_dialog(rt);

	if(c != 0) {
		fprintf(stdout,
			"selected: %u (%s)\n", c, buttons[c - 1]);
	}

	/* Free resources allocated by the redtools library, library is not
	   useable after this */

	(void) red_finalize(rt);

	exit(0);
}

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include "redtools.h"

int main() {
	REDTOOLS rt;

	/* Initialize the redtools library, if returned handle is NULL,
	   initialization was not succesful, and program must not call any
	   redtools functions */

	if((rt = red_initialize()) == NULL) {
		fprintf(stderr,
			"!\n! failed to initialize redtools library\n!\n");

		exit(1);
	}

{ /* Button dialog example */
	unsigned int c;

	/* Predefined dialog buttons */
	const char *buttons[] = {
		"Cheese", "Ham", "Prawn", "Tuna", "Plain green",
		NULL
	};

	fprintf(stdout,
		"#\n# dialog example\n#\n");

	/* Add dialog title... */
	(void) red_dialog_add_title(rt,
		"What kind of starter salad would you like?");

	/* ...then the buttons... */
	(void) red_dialog_add_buttons(rt, buttons);

	/* ...and display it to the user */
	c = red_question_dialog(rt);

	if(c != 0) {
		fprintf(stdout,
			"selected: %u (%s)\n", c, buttons[c - 1]);
	}
}

{ /* List example */
	int i;

	unsigned int *c;

	/* Predefined dialog selections */
	const char *items[] = {
		"Salt", "Pepper", "Vinegar", "Olive oil", "None, thanks",
		NULL
	};

	fprintf(stdout,
		"#\n# list example\n#\n");

	/* Add dialog title and list header... */
	(void) red_list_add_title(rt,
		"List example",
		"Please select one or more for seasoning the salad");

	/* ...then the selections... */
	(void) red_list_add_items(rt, items);

	/* ...and display it to the user... */
	if((c = red_list(rt)) != NULL) {
		/* ...then check which ones user selected, zero ends the
		      returned list of selections, as item index starts
		      counting from one */
		for(i = 0; ; i++) {
			if(c[i] == 0) {
				break;
			}

			fprintf(stdout,
				"selected: %u (%s)\n", c[i], items[c[i] - 1]);
		}
	}

	/* Free the returned list of selections */
	(void) red_list_free(c);
}

{ /* Radio button example */
	unsigned int c, p;

	/* Predefined dialog selections */
	const char *items[] = {
		"Chicken parmesan", "Daily soup", "Grilled fish",
		"Macaroni and cheese", "Meat loaf", "Pulled pork",
		"Sausage gravy", "Houses special", "No, thanks",
		NULL
	};

	/* First item is set by default, zero means no preselection */
	p = 1;

	fprintf(stdout,
		"#\n# radiobutton example\n#\n");

	/* Add dialog title and list header... */
	(void) red_radio_add_title(rt,
		"Radiobutton example",
		"Would you like to order the main dish?");

	/* ...then the selections and set the item selected by default... */
	(void) red_radio_add_items(rt, items);
	(void) red_radio_add_preset(rt, p);

	/* ...and display dialog to the user */
	c = red_radio(rt);

	/* Selected item index starts from one, zero means no selection was
	   made */
	if(c != 0) {
		fprintf(stdout,
			"selected: %u (%s)\n", c, items[c - 1]);
	}
}

{ /* Toggle button example */
	int i;

	unsigned int *c;
	unsigned int p[1];

	/* Predefined dialog selections */
	const char *items[] = {
		"Bill, please", "Clean tablecloth", "Chili sauce", "Bread",
		"Butter", "Ketchup", "Mustard", "Pepper", "Salt", "Soda water",
		"Still water",
		NULL
	};

	/* Second (0x2 = 00010b) and fourth (0x8 = 01000b) items are set by
	   default, there must be enough int's in array to cover every dialog
	   selection */
	p[0] = 0x2 | 0x8;

	fprintf(stdout,
		"#\n# togglebutton example\n#\n");

	/* Add dialog title and list header... */
	(void) red_button_add_title(rt,
		"Togglebutton example",
		"Any extra wishes?");

	/* ...then the selections and set the item(s) selected by default using
	      bitmask set above... */
	(void) red_button_add_items(rt, items);
	(void) red_button_add_preset(rt, p);

	/* ...and display it to the user... */
	if((c = red_button(rt)) != NULL) {
		/* ...then check which ones user selected, zero means this item
		      was not checked */
		for(i = 0; ; i++) {
			if(items[i] == NULL) {
				break;
			}

			if(c[i] != 0) {
				fprintf(stdout,
					"selected: %d (%s)\n", i, items[i]);
			}
		}
	}

	/* Free the returned list of selections */
	(void) red_button_free(c);
}

{ /* Prompt example */
	const char *s;

	fprintf(stdout,
		"#\n# prompt example\n#\n");

	/* Add dialog title... */
	(void) red_prompt_add_title(rt,
		"Prompt example",
		"Feedback to the restaurant");

	/* ...but do not prefill the text field... */
	(void) red_prompt_add_value(rt, NULL);

	/* ...then display it to the user... */
	if((s = red_prompt(rt)) != NULL) {
		fprintf(stdout,
			"prompt: %s\n", s);
	}

	/* ...and free the returned string what user possibly wrote */
	(void) red_prompt_free(s);
}

{ /* File selector example */
	const char *s;

	fprintf(stdout,
		"#\n# file selector example\n#\n");

	/* Add dialog title... */
	(void) red_file_add_title(rt,
		"File selection example");

	/* ...preselected path and possibly a file selection mask... */
	(void) red_file_add_path(rt, "/tmp");
	(void) red_file_add_mask(rt, NULL);

	/* ...then display it to the user... */
	if((s = red_file(rt)) != NULL) {
		fprintf(stdout,
			"selected: %s\n", s);
	}

	/* ...and free the file name string what user possibly selected */
	(void) red_file_free(s);
}

	/* Free resources allocated by the redtools library, library is not
	   useable after this */

	(void) red_finalize(rt);

	exit(0);
}