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//calp: printable calendar generator
#include <stdio.h>
#include <stdlib.h>
#include <stdbool.h>
#include <cairo/cairo-pdf.h>
#include <pango/pangocairo.h>
#include "draw.h"
#include "date.h"
#include "color.h"
#include "image.h"
// Metric
#define A4_WIDTH 210
#define A4_HEIGHT 297
#define US_LETTER_WIDTH 216
#define US_LETTER_HEIGHT 279
// Font Settings
#define FONT_FAMILY "Sans"
#define FONT_SIZE_NORMAL 10
#define FONT_SIZE_LARGE 40
int main (void) {
// Definitions
// -----------
double width = A4_WIDTH;
double height = A4_HEIGHT;
// Convert to inches, then 1 unit = 1/72th inch
width = (width / 25.4) * 72.0;
height = (height / 25.4) * 72.0;
extern char *months[];
int num_of_months = 12;
extern int days_in_month[12];
// Create dimensions struct to hold measurements
struct dimensions dim;
// Create dimensions struct to hold information about a
// month
struct month_info month;
// Leap year adjustment: increment February day count by one if
// it is a leap year.
int year = 3043;
if (isleap(year)) {
days_in_month[1]++;
}
int verbose_output = 0;
// TBD: Add ability to choose filename
// Defaults to the year being generated
char filename[20];
snprintf(filename, sizeof(filename), "%d.pdf", year);
// Initialization
// --------------
// Calculates measurements, stores them in dimensions struct. See "draw.h"
calculate_dimensions(width, height, &dim);
if (!CAIRO_HAS_PDF_SURFACE) {
printf("Error: PDF backend not available.\n");
return 1;
}
cairo_surface_t *surface = cairo_pdf_surface_create(filename, dim.paper_width, dim.paper_height);
cairo_t *paper = cairo_create(surface);
// Sub-surface for rendering content in day boxes
cairo_surface_t *day =
cairo_surface_create_similar(surface, CAIRO_CONTENT_COLOR_ALPHA, dim.day_width, dim.day_height);
// cd = context day
cairo_t *cd = cairo_create(day);
// Fill background with white color
set_color(paper, WHITE);
fill_bg(paper);
// Construction
// ------------
// Print dimensions, for debugging
if (verbose_output) {
print_dimensions(&dim);
}
// Range of months to be rendered (Default: Full calendar year, 12 months)
int first_month = 0;
int end_month = num_of_months;
// Month generation loop
for (int i = first_month; i < end_month; i++) {
// Initialize month struct
month.first_day = day_of_week(1, i + 1, year);
month.num_of_days = days_in_month[i];
month.month_position = i;
month.minimum_rows = calculate_minimum_rows(&month, &dim);
dim.header_width = dim.paper_width - (dim.margin * 2.0);
dim.header_height = dim.paper_height - (dim.margin * 3.0) - (month.minimum_rows * dim.day_height);
cairo_surface_t *header = cairo_surface_create_similar(surface, CAIRO_CONTENT_COLOR_ALPHA, dim.header_width, dim.header_height);
cairo_t *ch = cairo_create(header);
//set_color(ch, BLUE);
//fill_bg(ch);
set_color(ch, BLACK);
draw_month_title(ch, &dim, "Sans", 40, months[i]);
char path[20];
snprintf(path, 20, "assets/%d.png", i + 1);
prepare_month_art(path, &dim);
if (verbose_output) {
printf("Drawing month \'%s\'\n", months[i]);
}
draw_month_art(paper, &dim, path);
cairo_set_source_surface(paper, header, dim.margin, dim.margin);
cairo_paint(paper);
draw_month(paper, cd, day, &month, &dim);
draw_month_grid(paper, &month, &dim);
// Go to the next page in pdf
cairo_show_page(paper);
cairo_destroy(ch);
cairo_surface_destroy(header);
}
if (verbose_output) {
printf("Finished generating \'%s\'.\n", filename);
}
// Clean up
// --------
cairo_destroy(paper);
cairo_surface_destroy(surface);
cairo_destroy(cd);
cairo_surface_destroy(day);
return 0;
}
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