aboutsummaryrefslogtreecommitdiff
path: root/src/draw.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/draw.c')
-rw-r--r--src/draw.c117
1 files changed, 72 insertions, 45 deletions
diff --git a/src/draw.c b/src/draw.c
index d5dbe37..bdc62af 100644
--- a/src/draw.c
+++ b/src/draw.c
@@ -22,16 +22,21 @@ struct dimensions {
double day_width; /* day box width */
double day_height; /* day box height */
double margin; /* margin */
+ double header_width;
+ double header_height;
};
// struct to hold Month-specific info, like what day of the week the first
// day lands on, how many days are in the month, etc.
struct month_info {
+ int month_position;
int first_day;
int num_of_days;
+ int minimum_rows;
};
+// struct for defining RGB colors
struct RGB {
double r;
double g;
@@ -39,20 +44,16 @@ struct RGB {
};
+
// Convert Hex color strings to their RGB counterparts.
// IMO, hex strings are easier to work with, so this is
// a nice helper function.
struct RGB hex_to_rgb(char *str) {
- double r, g, b;
- unsigned int ri, gi, bi;
+ unsigned int r, g, b;
struct RGB color;
- sscanf(str, "%02x%02x%02x", &ri, &gi, &bi);
+ sscanf(str, "%02x%02x%02x", &r, &g, &b);
- r = ri;
- g = gi;
- b = bi;
-
color.r = (r / 255.0);
color.g = (g / 255.0);
color.b = (b / 255.0);
@@ -151,32 +152,35 @@ PangoRectangle get_logical_extents (cairo_t *c, char *font_family, int font_size
}
+
// Calculate dimenions for one page and stores it in the dimensions struct
// Used for determining where elements should be drawn on the page
int calculate_dimensions(double pw, double ph, struct dimensions *d) {
+ d->row_count = 6;
+ d->column_count = 7;
+
// Percentage of page that should be margin
double margin = 0.05 * pw;
+
+ // width of day is 1/7th of total width
+ double box_width = pw / 10.0;
// Everything other than margin
- double month_width = 0.9 * pw;
+ double month_width = box_width * d->column_count;
- // width of day is 1/7th of total width
- double box_width = month_width / 7.0;
// Width = Height; Day Box is a square
double box_height = box_width;
// Height is based on how tall # of weeks are
- double month_height = box_height * 6.0;
+ double month_height = box_height * d->row_count;
// Set items in struct to calculated values
- d->row_count = 6;
- d->column_count = 7;
d->paper_width = pw;
d->paper_height = ph;
d->margin = margin;
d->month_width = month_width;
- d->month_top_corner_x = margin;
+ d->month_top_corner_x = (pw - (month_width)) / 2.0;
d->month_top_corner_y = ph - margin - month_height;
d->month_height = month_height;
d->day_width = box_width;
@@ -199,6 +203,8 @@ int print_dimensions(struct dimensions *d) {
printf("month_top_corner_y: %f\n", d->month_top_corner_y);
printf("day width: %.2f\n", d->day_width);
printf("day height: %.2f\n", d->day_height);
+ printf("header width: %.2f\n", d->header_width);
+ printf("header height: %.2f\n", d->header_height);
return 0;
}
@@ -270,6 +276,27 @@ int draw_month_grid (cairo_t *c, struct month_info *m, struct dimensions *d) {
+int construct_day_box(cairo_t *cd, int month, int day, int week_day) {
+ char str[20];
+ double padding = 8.0;
+
+ set_color(cd, WHITE);
+ fill_bg(cd);
+
+ if ((month == 0) && (day == 1) && (week_day == 1)) {
+ }
+
+ // draw_text(), and therefore pango_layout_set_text(), needs a
+ // string as input, so the current day's date is converted.
+ snprintf(str, sizeof(str), "%d", day);
+
+ set_color(cd, BLACK);
+ draw_text(cd, padding, padding, "Monospace", 15, str);
+ return 0;
+}
+
+
+
// Draws one month using daybox sub-surface & context, main context, and dimension struct
int draw_month (cairo_t *c, cairo_t *cd, cairo_surface_t *s, struct month_info *m, struct dimensions *d) {
double cursor_x = d->month_top_corner_x;
@@ -284,7 +311,6 @@ int draw_month (cairo_t *c, cairo_t *cd, cairo_surface_t *s, struct month_info *
int increment = 0;
- char str[20];
for (int i = 0; i < d->row_count; i++) {
for (int k = current_day; k < d->column_count; k++) {
@@ -292,24 +318,11 @@ int draw_month (cairo_t *c, cairo_t *cd, cairo_surface_t *s, struct month_info *
// the function.
if (increment >= m->num_of_days) return 0;
- set_color(cd, WHITE);
- fill_bg(cd);
-
- // Change text color
- set_color(cd, BLACK);
-
-
- // draw_text(), and therefore pango_layout_set_text(), needs a
- // string as input, so the current day's date is converted.
- snprintf(str, sizeof(str), "%d", increment + 1);
-
- // Position within cd is arbitrary: (0,0) is too close to edge,
- // so the text is offset a little bit.
- draw_text(cd, 4.0, 4.0, "Sans", 10, str);
+ construct_day_box(cd, m->month_position, increment + 1, k);
- // Position sub-surface on main surface
+ // Position the constructed day box on main surface
cairo_set_source_surface (c, s, cursor_x, cursor_y);
cairo_paint(c);
@@ -331,27 +344,41 @@ int draw_month (cairo_t *c, cairo_t *cd, cairo_surface_t *s, struct month_info *
// Draws the month being drawn at the top of the page
-int draw_month_title(cairo_t *c, struct dimensions *d, char *name) {
- double height = d->paper_height - d->month_height - (d->margin * 2.0) - 40.0;
+int draw_month_title(cairo_t *c, struct dimensions *d, char *font_family, int font_size, char *name) {
PangoRectangle rect;
- char *font = "Serif";
- int font_size = 40;
+ rect = get_logical_extents(c, font_family, font_size, name);
- rect = get_logical_extents(c, font, font_size, name);
-
- double cursor_x = (d->paper_width / 2.0) - ((rect.width / 2.0));
- double cursor_y = height + d->margin;
- draw_text(c, cursor_x, cursor_y, font, font_size, name);
+ //double cursor_x = (d->header_height / 2.0) - ((rect.width / 2.0));
+ double cursor_x = ((d->header_width - rect.width) / 2.0);
+ //double cursor_y = height + d->margin;
+ double cursor_y = d->header_height - rect.height - d->margin;
+ draw_text(c, cursor_x, cursor_y, font_family, font_size, name);
return 0;
}
+
// Draw an image at a specified point
int draw_image(cairo_t *c, char *path, double x, double y) {
cairo_surface_t *image;
+
+ // Checks if the file exists. If it doesn't, warn the user that it was not found.
+ // A file not existing will not terminate the program, but simply not render the image.
+ FILE *file;
+ if((file = fopen(path, "r")) != NULL)
+ {
+ // file exists
+ fclose(file);
+ }
+ else
+ {
+ printf("Warning: image \'%s\' does not exist.\n", path);
+ return 1;
+ }
+
image = cairo_image_surface_create_from_png(path);
cairo_set_source_surface(c, image, x, y);
cairo_paint(c);
@@ -362,16 +389,16 @@ int draw_image(cairo_t *c, char *path, double x, double y) {
-// Draw month art, if specified, above the calendar but below the
-// month's name. Images are cropped if they are too big or don't fit
-// the dimensions
+
+// Draw month art
int draw_month_art(cairo_t *c, struct dimensions *d, char *path) {
cairo_save(c);
- double width = d->month_width;
- double height = d->paper_height - d->month_height - (d->margin * 2.0) - 40.0;
+ double width = d->header_width;
+ // TODO: Make this relative to text height
+ double height = d->header_height - (d->margin * 3.0);
+
double cursor_x = d->margin;
double cursor_y = d->margin;
- printf("drawing month...\n");
cairo_rectangle (c, d->margin, d->margin, width, height);
cairo_clip(c);
generated by cgit v1.2.3 (git 2.39.1) at 2026-05-20 05:12:50 +0000