X-Git-Url: https://harishankar.org/repos/?p=wordblah.git;a=blobdiff_plain;f=wordblox.h;h=53c522b848ea505391742d373a75c935bedc33f6;hp=f7cd6d2a4c2bba8b5104b7a20ffeaed34b85543f;hb=57adeb73762dac7590dcac1b2d1e462d50e8565d;hpb=a9394973f79c66abefe200c4a0033cc9e3361e26

diff --git a/wordblox.h b/wordblox.h
index f7cd6d2..53c522b 100644
--- a/wordblox.h
+++ b/wordblox.h
@@ -1,6 +1,9 @@
 #ifndef __WORDBLOX_H
 #define __WORDBLOX_H
 
+#include <gd.h>
+#include <gdfontmb.h>
+#include <gdfontg.h>
 #include "constantstrings.h"
 
 #define MAX_PUZZLE_SIZE 20
@@ -41,6 +44,7 @@ typedef struct {
 	bool grid_frozen;
 } Puzzle;
 
+/* get a number from the user */
 int get_num ()
 {
 	char s[5];
@@ -49,6 +53,73 @@ int get_num ()
 	return n;
 }
 
+/* Output the grid to image - if answerkey is true export filled grid */
+void export_grid_image  (Puzzle *p, const char *filename, bool answerkey) 
+{
+	int img_size = p->grid_size * 40;
+	FILE * outfile = fopen (filename, "wb");
+	if (outfile == NULL)
+	{
+		fprintf (stderr, "%s\n", ERROR_WRITING_FILE);
+		exit (1);
+	}
+	
+	gdImagePtr img = gdImageCreate (img_size, img_size);
+	int white = gdImageColorAllocate (img, 255,255,255);
+	int black = gdImageColorAllocate (img, 0, 0, 0);
+	int blue = gdImageColorAllocate (img, 0, 0, 216);
+	gdFontPtr sm_fnt = gdFontGetMediumBold ();
+	gdFontPtr lg_fnt = gdFontGetGiant ();
+	
+	for (int i = 0; i < p->grid_size; i ++)
+	{
+		for (int j = 0; j < p->grid_size; j++)
+		{
+			/* if it is a block, draw the black square */
+			if (p->chars[i][j] == '#')
+				gdImageFilledRectangle (img, j*40, i*40, j*40+40, 
+											i*40+40,black);
+			else
+			{
+				/* draw a regular square */
+				gdImageRectangle (img, j*40, i*40, j*40+40, 
+									i*40+40, black);
+				
+				/* print the numers, if it is either start across word or 
+				a down word */
+				if (p->start_across_word[i][j] != -1 || 
+						p->start_down_word[i][j] != -1)
+				{
+					if (p->start_across_word[i][j] != -1)
+					{
+						char str[5];
+						sprintf (str, "%d", p->start_across_word[i][j]);
+						gdImageString (img,  sm_fnt, j*40+2, i*40+2,
+									(unsigned char *)str, blue);   
+					}
+					else 
+					{
+						char str[5];
+						sprintf (str, "%d", p->start_down_word[i][j]);
+						gdImageString (img,  sm_fnt, j*40+2, i*40+2,
+									(unsigned char *)str, blue);					
+					}
+				}
+				/* if answerkey is true, draw the character in the cell */
+				if (answerkey)
+				{
+					gdImageChar (img, lg_fnt, j*40+15, i*40+15, 
+						p->chars[i][j], black);
+				}
+			}
+		}
+	}
+	
+	gdImagePng (img, outfile);
+	gdImageDestroy (img);
+	fclose (outfile);
+}
+
 /* Set the terminal colour */
 void set_color (enum COLOR fg, enum COLOR bg, enum ATTR at) {
 	printf ("\x1B[%d;%d;%dm", fg+30, bg+40, at);