results.c

#include "catview.h"
#include "tyac.h"
#include <conio.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

extern int CATS_TO_SEARCH;
extern BOOL Out_Of_Memory;

int Browse_Results(Catalog *catalog) {
	char key_press = PAGE_DN;
	int page = 1, RecsPerPage = 22 / catalog->nLines;
	int message_bkg = LIGHTGREEN;

	if (Out_Of_Memory) {
		StatusBar("DOS memory limit exceeded - search discontinued", YELLOW + BLINK, RED);
		getkbhit();
	}

	if (catalog->lMatches == 0) {
		Print_NoMatches(catalog);
		getkbhit();
	} else
		do {
			message_bkg = Print_StatusMessage(page, catalog);
			Print_ScreenInfo(catalog, page, message_bkg);

			/* check key_press here to cater for initial printing of results without refreshing */
			if (key_press != PAGE_DN && key_press != PAGE_UP && key_press != SPACE)
				return (P_NO_PRINT_RESULTS);

			/* get input and decide which way to turn page */
			if (!(key_press = getch()))
				key_press = getch();

			/* space was used in version 2.3 and below */
			if (key_press == PAGE_DN || key_press == SPACE) {
				/* clear most of screen*/
				box(2, 23, 0, 79, BLANK_BOX, FILL_BOX, BLUE, BLUE);
				if (message_bkg == LIGHTGREEN) /* ie if search is not complete (isn't flashing)*/
					page++;
				else
					page = 1;
				Display_Page(page, catalog);
			} else if (key_press == PAGE_UP) {
				/* clear most of screen*/
				box(2, 23, 0, 79, BLANK_BOX, FILL_BOX, BLUE, BLUE);
				if (page > 1) /* ie if search is not complete (isn't flashing */
					page--;
				else {
					page = ((int)catalog->lMatches / RecsPerPage);
					if (catalog->lMatches % RecsPerPage)
						page++;
				} /* calculate last page */
				Display_Page(page, catalog);
			}
		} while (key_press == PAGE_DN || key_press == PAGE_UP || key_press == SPACE);

	textcolor(BLACK);
	return (toupper(key_press) == 'P' || toupper(key_press) == 'S') ? P_PRINT_RESULTS : P_NO_PRINT_RESULTS;
}

/******************************* USE_RECORD_ARRAY *****************************/
void Display_Page(int page, Catalog *catalog) {
	int x, y, row;
	int RecsPerPage = 22 / catalog->nLines;
	Record *record;
	if (page)
		page--; /* adjust page for starting at '1' based linked list */
	record = Find_Record((page * RecsPerPage) + 1);

	for (x = (page * RecsPerPage) + 1, row = 3, y = 0; y < RecsPerPage && x <= catalog->lMatches;
	     x++, y++, row += catalog->nLines) {
		gotoxy(1, row);
		if (catalog->bSuperSearch) {
			write_string(record->szOwner, LIGHTGRAY, BLUE, row - 1, 0);
			gotoxy(strlen(record->szOwner) - 3, row);
			repeat_char(176, 80 - (strlen(record->szOwner) - 4), LIGHTGRAY, BLUE);
		} else
			repeat_char(176, 80, LIGHTGRAY, BLUE);

		textcolor(CYAN);
		textbackground(BLUE);
		gotoxy(38, row);
		/* print record number */
		cprintf("%ld", record->lNumber);
		Write_Record(record->szRecord, row);

		record = record->next;
		if (!record)
			return;
	}
	gotoxy(1, row);
	repeat_char(176, 80, LIGHTGRAY, BLUE);
}

void Draw_ResultsScreen(int catCount, int SuperSearch) {
	box(0, 23, 0, 79, BLANK_BOX, FILL_BOX, BLUE, BLUE);
	gotoxy(1, 1);
	repeat_char(32, 80, LIGHTGRAY, LIGHTGRAY);
	write_string("S E A R C H  R E S U L T S", BLACK, LIGHTGRAY, 0, 28);
	write_string("Catalogue#     Item Description                                                 ",
	             WHITE, GREEN, 1, 0);
	write_string("Press 'P' for print/save options", LIGHTGREEN, GREEN, 1, 48);

	if (SuperSearch) {
		gotoxy(1, 1);
		/* reprint section just rubbed out */
		textcolor(BLACK);
		textbackground(LIGHTGRAY);
		cprintf("Searching %d of %d", catCount, CATS_TO_SEARCH);
		/* reset colours for bar draw */
		textcolor(WHITE);
		textbackground(BLACK);
	}
}

/* currentcat is only different to chosencat in the event of a super search */
void PrePrint_Record(Catalog *currentcat, Catalog *chosencat, int catcount) {
	static int CurrentRow = 3;
	Record *record = Find_Record(chosencat->lMatches);

	if (chosencat->lMatches == 1) {
		Draw_ResultsScreen(catcount, chosencat->bSuperSearch);
		CurrentRow = 3;
	}

	gotoxy(1, CurrentRow);

	if (chosencat->bSuperSearch) {
		write_string(currentcat->szName, LIGHTGRAY, BLUE, CurrentRow - 1, 0);
		gotoxy(strlen(currentcat->szName) - 3, CurrentRow);
		repeat_char(176, 80 - (strlen(currentcat->szName) - 4), LIGHTGRAY, BLUE);
	} else
		repeat_char(176, 80, LIGHTGRAY, BLUE);

	textcolor(CYAN);
	textbackground(BLUE);
	gotoxy(38, CurrentRow); /* print record number */
	cprintf("%ld", chosencat->lMatches);
	Write_Record(record->szRecord, CurrentRow);

	CurrentRow += (chosencat->bSuperSearch) ? SUPER_LINES : chosencat->nLines;

	textcolor(WHITE);
	textbackground(BLACK); /* must reset colours for first 'prograss-bar' draw */
}

void Print_NoMatches(Catalog *catalog) {
	textcolor(BLACK);
	textbackground(RED);

	/* clear "searching..." box */
	box(7, 9, 28, 48, BLANK_BOX, FILL_BOX, GREEN, GREEN);
	box(10, 14, 10, 27, BLANK_BOX, FILL_BOX, GREEN, GREEN);

	box(10, 14, 28, 48, BLANK_BOX, FILL_BOX, RED, RED);
	write_string("NO MATCHES FOUND", WHITE + BLINK, RED, 12, 30);
	gotoxy(1, 25);
	repeat_char(SPACE, 80, RED, RED);
	gotoxy(1, 25);
	cprintf("Items Searched=%ld", catalog->lRecords);
	if (catalog->bSuperSearch)
		write_string("All catalogs searched", BLACK, LIGHTGRAY, 0, 0);
}

int Print_StatusMessage(int page_num, Catalog *catalog) {
	/* decide message to print according to number of matches/pages remaining */
	char message[81] = "\0";
	int Message_bg = 0;
	int RecsPerPage = 22 / catalog->nLines;

	if (page_num * RecsPerPage < catalog->lMatches) {
		strcpy(message, "Hit <Page Down> for more matches");
		Message_bg = LIGHTGREEN;
	} else if (page_num * RecsPerPage >= catalog->lMatches) {
		if (Out_Of_Memory) {
			strcpy(message, "SEARCH DISCONTINUED");
			Message_bg = LIGHTRED;
		} else {
			strcpy(message, "search complete");
			Message_bg = GREEN;
		}
	}
	StatusBar(message, BLACK, Message_bg); /* print message at bottom of screen */
	return (Message_bg);
}

void Print_ScreenInfo(Catalog *catalog, int PageNum, int Message_bg) {
	/* print screen information */
	gotoxy(1, 1);
	textcolor(BLACK);
	textbackground(CYAN);
	write_string("                       ", WHITE, LIGHTGRAY, 0, 0); /* clear space */

	if (catalog->bSuperSearch)
		cprintf("%s", "ALL catalogs");
	else
		cprintf("%s", catalog->szNameOnly);

	textbackground(LIGHTGRAY);
	gotoxy(71, 1);
	cprintf("Page %-4d ", PageNum); /* print page number top-right */

	textbackground(Message_bg);
	gotoxy(66, 25);
	cprintf("Matches=%ld", catalog->lMatches);
	gotoxy(1, 25);
	cprintf("Items Searched=%ld", catalog->lRecords);
}