draw_month_grid() doesn't use dimension struct anymore. create generate extents structs for month, paper, and day

1 files changed, 33 insertions, 14 deletions

diff --git a/src/draw.c b/src/draw.c
index 051e12b..54a7ad3 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -47,6 +47,16 @@ RGB {
 };
 
 
+// Generic struct for storing where an object is and how 
+// it takes up space.
+struct extents {
+   double x;
+   double y;
+   double width;
+   double height;
+};
+
+
 
 // Convert Hex color strings to their RGB counterparts.
 // IMO, hex strings are easier to work with, so this is 
@@ -58,6 +68,7 @@ RGB hex_to_rgb(char *str) {
 
    sscanf(str, "%02x%02x%02x", &r, &g, &b);
    
+   // R, G, B values are from 0.0 - 1.0, so needs to be divided by 255.0
    color.r = (r / 255.0);
    color.g = (g / 255.0);
    color.b = (b / 255.0);
@@ -223,10 +234,10 @@ print_dimensions(struct dimensions *d) {
 // Most months can fit within 4 or 5 rows instead of 6.
 // TBD: This can probably done in a more efficient way
 int
-calculate_minimum_rows(struct month_info *m, struct dimensions *d) {
+calculate_minimum_rows(struct month_info *m) {
    int extra_rows = 0;
    
-   int days_in_first_week = (d->column_count - m->first_day);
+   int days_in_first_week = (7 - m->first_day);
 
    if (m->first_day == 0) {
       days_in_first_week = m->first_day;
@@ -253,32 +264,40 @@ calculate_minimum_rows(struct month_info *m, struct dimensions *d) {
 
 // Draws the grid lines for a month
 int
-draw_month_grid (cairo_t *c, struct month_info *m, struct dimensions *d) {
-   double cursor_x = d->month_top_corner_x;
+draw_month_grid (cairo_t *c, struct month_info *m, struct extents *me, struct extents *de) {
+   double cursor_x = me->x;
 
-   int row_offset = d->row_count - calculate_minimum_rows(m, d);
-   double cursor_y = d->month_top_corner_y + (row_offset * d->day_height);
+   int column_count = 7;
+   int row_count = 6;
+   // double cursor_x = month_grid_pos->x;
+
+   // make d->row_count reside in month_info *m
+   int row_offset = row_count - calculate_minimum_rows(m);
+   // double cursor_y = month_grid_pos->y;
+   double cursor_y = me->y + (row_offset * de->height);
 
    double x = cursor_x;
    double y = cursor_y;
 
    set_color(c, BLACK);
-   cairo_set_line_width (c, 1.0);
+   cairo_set_line_width(c, 1.0);
 
-   for (int i = 0; i <= d->column_count; i++) {
+   // Vertical lines
+   for (int i = 0; i <= column_count; i++) {
       cairo_move_to(c, cursor_x, cursor_y);
-      cairo_line_to(c, cursor_x, cursor_y + (d->month_height - (row_offset * d->day_height)));
-      cursor_x = cursor_x + d->day_width;
+      cairo_line_to(c, cursor_x, cursor_y + (me->height - (row_offset * de->height)));
+      cursor_x = cursor_x + de->width;
    }
 
    // Recenter the cursor
    cursor_x = x;
    cursor_y = y;
 
-   for (int i = 0; i <= d->row_count; i++) {
+   // Horizontal lines
+   for (int i = 0; i <= row_count; i++) {
       cairo_move_to(c, cursor_x, cursor_y);
-      cairo_line_to(c, cursor_x + d->month_width, cursor_y);
-      cursor_y = cursor_y + d->day_height;
+      cairo_line_to(c, cursor_x + me->width, cursor_y);
+      cursor_y = cursor_y + de->height;
    }
 
    cairo_stroke(c);
@@ -317,7 +336,7 @@ draw_month(cairo_t *c, cairo_t *cd, cairo_surface_t *s, struct month_info *m, st
    if (m->first_day != 0) cursor_x = cursor_x + (d->day_width * m->first_day);
 
    // Push bottom of month as far down the page as the margin allows 
-   int row_offset = d->row_count - calculate_minimum_rows(m, d);
+   int row_offset = d->row_count - calculate_minimum_rows(m);
    double cursor_y = d->month_top_corner_y + (row_offset * d->day_height);
 
    int current_day = m->first_day;