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	sent-pdf-2649e8d.diff (3314B)
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	1 From 78a5f5d263c5209d685abbe657bbc5bd3f756994 Mon Sep 17 00:00:00 2001
	2 From: tuckerrrrrrrrrr <[email protected]>
	3 Date: Sat, 14 Nov 2020 12:54:53 +0100
	4 Subject: [PATCH] Conversion to PDF
	5
	6 Add the ability to convert presentations to PDF. Adds an additional
	7 dependency: cairo.
	8 ---
	9 config.def.h \| 1 +
	10 config.mk \| 7 +++++--
	11 sent.c \| 42 ++++++++++++++++++++++++++++++++++++++----
	12 3 files changed, 44 insertions(+), 6 deletions(-)
	13
	14 diff --git a/config.def.h b/config.def.h
	15 index 60eb376..e68a099 100644
	16 --- a/config.def.h
	17 +++ b/config.def.h
	18 @@ -47,6 +47,7 @@ static Shortcut shortcuts[] = {
	19 { XK_n, advance, {.i = +1} },
	20 { XK_p, advance, {.i = -1} },
	21 { XK_r, reload, {0} },
	22 + { XK_g, pdf, {0} },
	23 };
	24
	25 static Filter filters[] = {
	26 diff --git a/config.mk b/config.mk
	27 index d61c554..9174687 100644
	28 --- a/config.mk
	29 +++ b/config.mk
	30 @@ -7,14 +7,17 @@ VERSION = 1
	31 PREFIX = /usr/local
	32 MANPREFIX = ${PREFIX}/share/man
	33
	34 +PKG_CONFIG = pkg-config
	35 +
	36 X11INC = /usr/X11R6/include
	37 X11LIB = /usr/X11R6/lib
	38
	39 # includes and libs
	40 INCS = -I. -I/usr/include -I/usr/include/freetype2 -I${X11INC}
	41 -LIBS = -L/usr/lib -lc -lm -L${X11LIB} -lXft -lfontconfig -lX11
	42 +LIBS = -L/usr/lib -lc -lm -L${X11LIB} -lXft -lfontconfig -lX11 -lcairo
	43 # OpenBSD (uncomment)
	44 -#INCS = -I. -I${X11INC} -I${X11INC}/freetype2
	45 +INCS = -I. -I${X11INC} -I${X11INC}/freetype2 `${PKG_CONFIG} --cflags ca…
	46 +LIBS += -L/usr/local/lib
	47 # FreeBSD (uncomment)
	48 #INCS = -I. -I/usr/local/include -I/usr/local/include/freetype2 -I${X11…
	49 #LIBS = -L/usr/local/lib -lc -lm -L${X11LIB} -lXft -lfontconfig -lX11
	50 diff --git a/sent.c b/sent.c
	51 index 9534fca..dc5cf89 100644
	52 --- a/sent.c
	53 +++ b/sent.c
	54 @@ -19,6 +19,10 @@
	55 #include <X11/Xutil.h>
	56 #include <X11/Xft/Xft.h>
	57
	58 +#include <cairo/cairo.h>
	59 +#include <cairo/cairo-xlib.h>
	60 +#include <cairo/cairo-pdf.h>
	61 +
	62 #include "arg.h"
	63 #include "util.h"
	64 #include "drw.h"
	65 @@ -97,6 +101,7 @@ static void cleanup(int slidesonly);
	66 static void reload(const Arg *arg);
	67 static void load(FILE *fp);
	68 static void advance(const Arg *arg);
	69 +static void pdf();
	70 static void quit(const Arg *arg);
	71 static void resize(int width, int height);
	72 static void run();
	73 @@ -428,10 +433,6 @@ load(FILE *fp)
	74 maxlines = 0;
	75 memset((s = &slides[slidecount]), 0, sizeof(Slide));
	76 do {
	77 - /* if there's a leading null, we can't do blen-…
	78 - if (buf[0] == '\0')
	79 - continue;
	80 -
	81 if (buf[0] == '#')
	82 continue;
	83
	84 @@ -479,6 +480,39 @@ advance(const Arg *arg)
	85 }
	86 }
	87
	88 +void
	89 +pdf()
	90 +{
	91 + const Arg next = { .i = 1 };
	92 + Arg first;
	93 + cairo_surface_t *cs;
	94 +
	95 + char filename[strlen(fname) + 5];
	96 + sprintf(filename, "%s.pdf", fname);
	97 + cairo_surface_t *pdf = cairo_pdf_surface_create(filename, xw.w,…
	98 +
	99 + cairo_t *cr = cairo_create(pdf);
	100 +
	101 + first.i = -idx;
	102 + advance(&first);
	103 +
	104 + cs = cairo_xlib_surface_create(xw.dpy, xw.win, xw.vis, xw.w, xw…
	105 + cairo_set_source_surface(cr, cs, 0.0, 0.0);
	106 + for (int i = 0; i < slidecount; ++i) {
	107 + cairo_paint(cr);
	108 + cairo_show_page(cr);
	109 + cairo_surface_flush(cs);
	110 + advance(&next);
	111 + cairo_surface_mark_dirty(cs);
	112 + }
	113 + cairo_surface_destroy(cs);
	114 +
	115 + cairo_destroy(cr);
	116 + cairo_surface_destroy(pdf);
	117 + first.i = -(slidecount-1);
	118 + advance(&first);
	119 +}
	120 +
	121 void
	122 quit(const Arg *arg)
	123 {
	124 --
	125 2.29.2
	126