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Start fleshing out the dive printing a bit more

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Four dives per page sounds good.  Maybe even six? But dangit, the
default font choice for cairo printing sucks.  And I need to learn about
pango for actually printing the dive info.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org
This commit is contained in:
Linus Torvalds 2011-09-20 16:46:28 -07:00
parent e276b0602b
commit 76a732fe74
1 changed files with 38 additions and 9 deletions
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47
print.c
View file

@ -4,27 +4,54 @@
#include "display.h" #include "display.h"
#include "display-gtk.h" #include "display-gtk.h"
static void show_one_dive(struct dive *dive, cairo_t *cr, double w, double h)
{
struct graphics_context gc = {
.printer = 1,
.cr = cr
};
plot(&gc, w, h, dive);
}
static void print(int divenr, cairo_t *cr, double x, double y, double w, double h)
{
struct dive *dive;
dive = get_dive(divenr);
if (!dive)
return;
cairo_save(cr);
cairo_translate(cr, x, y);
/* Dive plot in the upper half */
show_one_dive(dive, cr, w, h/2);
/* Dive information in the lower half */
cairo_restore(cr);
}
static void draw_page(GtkPrintOperation *operation, static void draw_page(GtkPrintOperation *operation,
GtkPrintContext *context, GtkPrintContext *context,
gint page_nr, gint page_nr,
gpointer user_data) gpointer user_data)
{ {
int nr;
cairo_t *cr; cairo_t *cr;
PangoLayout *layout; PangoLayout *layout;
double w, h; double w, h;
struct graphics_context gc = { .printer = 1 };
cr = gtk_print_context_get_cairo_context(context); cr = gtk_print_context_get_cairo_context(context);
gc.cr = cr;
layout=gtk_print_context_create_pango_layout(context); layout=gtk_print_context_create_pango_layout(context);
w = gtk_print_context_get_width(context); w = gtk_print_context_get_width(context) / 2;
h = gtk_print_context_get_height(context); h = gtk_print_context_get_height(context) / 2;
/* Do the profile on the top half of the page.. */ nr = page_nr*4;
if (current_dive) print(nr+0, cr, 0, 0, w, h);
plot(&gc, w, h/2, current_dive); print(nr+1, cr, w, 0, w, h);
print(nr+2, cr, 0, h, w, h);
print(nr+3, cr, w, h, w, h);
pango_cairo_show_layout(cr,layout); pango_cairo_show_layout(cr,layout);
g_object_unref(layout); g_object_unref(layout);
@ -38,13 +65,15 @@ static GtkPrintSettings *settings = NULL;
void do_print(void) void do_print(void)
{ {
int pages;
GtkPrintOperation *print; GtkPrintOperation *print;
GtkPrintOperationResult res; GtkPrintOperationResult res;
print = gtk_print_operation_new(); print = gtk_print_operation_new();
if (settings != NULL) if (settings != NULL)
gtk_print_operation_set_print_settings(print, settings); gtk_print_operation_set_print_settings(print, settings);
gtk_print_operation_set_n_pages(print, 1); pages = (dive_table.nr + 3) / 4;
gtk_print_operation_set_n_pages(print, pages);
g_signal_connect(print, "begin_print", G_CALLBACK(begin_print), NULL); g_signal_connect(print, "begin_print", G_CALLBACK(begin_print), NULL);
g_signal_connect(print, "draw_page", G_CALLBACK(draw_page), NULL); g_signal_connect(print, "draw_page", G_CALLBACK(draw_page), NULL);
res = gtk_print_operation_run(print, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG, res = gtk_print_operation_run(print, GTK_PRINT_OPERATION_ACTION_PRINT_DIALOG,