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Add completely BS dive text printing

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The layout is crap, the handling of long lines in notes (or location) is
wrong, the dive number handling is wrong.

The thing is just a toy.

But it's a toy that kind of works, and gives a much better idea of what
a real dive log printout might look like.  With the right kind of dive
notes, it looks fine.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Linus Torvalds 2011-09-20 19:30:38 -07:00
parent ac80ff1c48
commit d8d631aa84
1 changed files with 58 additions and 7 deletions
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65
print.c
View file

@ -1,10 +1,64 @@
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <gtk/gtk.h>
#include "dive.h"
#include "display.h"
#include "display-gtk.h"
static void show_one_dive(struct dive *dive, cairo_t *cr, double w, double h)
static void show_text(cairo_t *cr, int size, double x, double y, const char *fmt, ...)
{
va_list args;
char buffer[256], *p;
va_start(args, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, args);
va_end(args);
cairo_set_font_size(cr, size);
p = buffer;
do {
char *n = strchr(p, '\n');
if (n)
*n++ = 0;
cairo_move_to(cr, x, y);
cairo_show_text(cr, p);
p = n;
y += size;
} while (p);
}
/*
* You know what? Maybe somebody can do a real Pango layout thing.
*
* I'm going to do this with the cairo engine instead. I can only learn so
* many new interfaces.
*/
static void show_dive_text(struct dive *dive, cairo_t *cr, double w, double h)
{
struct tm *tm;
tm = gmtime(&dive->when);
show_text(cr, 16, 0, 2, "Dive #%d - %s, %s %d, %d %d:%02d",
dive->number,
weekday(tm->tm_wday),
monthname(tm->tm_mon),
tm->tm_mday, tm->tm_year + 1900,
tm->tm_hour, tm->tm_min);
show_text(cr, 10, w*0.6, 0,
"Max depth: %d ft\nDuration: %d:%02d",
to_feet(dive->maxdepth),
dive->duration.seconds / 60,
dive->duration.seconds % 60);
show_text(cr, 10, 0, 20, "%s", dive->location ?: "");
show_text(cr, 10, 0, 30, "%s", dive->notes ?: "");
}
static void show_dive_profile(struct dive *dive, cairo_t *cr, double w, double h)
{
struct graphics_context gc = {
.printer = 1,
@ -27,9 +81,11 @@ static void print(int divenr, cairo_t *cr, double x, double y, double w, double
cairo_scale(cr, 0.5, 0.5);
/* Dive plot in the upper 75% - note the scaling */
show_one_dive(dive, cr, w*2, h*1.5);
show_dive_profile(dive, cr, w*2, h*1.5);
/* Dive information in the lower 25% */
cairo_translate(cr, 0, h*1.5);
show_dive_text(dive, cr, w*2, h*0.5);
cairo_restore(cr);
}
@ -41,11 +97,9 @@ static void draw_page(GtkPrintOperation *operation,
{
int nr;
cairo_t *cr;
PangoLayout *layout;
double w, h;
cr = gtk_print_context_get_cairo_context(context);
layout=gtk_print_context_create_pango_layout(context);
w = gtk_print_context_get_width(context)/2;
h = gtk_print_context_get_height(context)/3;
@ -57,9 +111,6 @@ static void draw_page(GtkPrintOperation *operation,
print(nr+3, cr, w, h, w, h);
print(nr+2, cr, 0, 2*h, w, h);
print(nr+3, cr, w, 2*h, w, h);
pango_cairo_show_layout(cr,layout);
g_object_unref(layout);
}
static void begin_print(GtkPrintOperation *operation, gpointer user_data)