utils: replace mkwallpaper with mklabwall re #16

utils/mkwallpaper/Makefile → utils/mklabwall/Makefile

@@ -2,16 +2,16 @@ CC?=cc
 CFLAGS+=-Wall -pedantic -std=gnu99 $(shell pkg-config --cflags pangocairo)
 LDFLAGS+=$(shell pkg-config --libs pangocairo)
 
-all: mkwallpaper
+all: mklabwall
 
-mkwallpaper: mkwallpaper.o
+mklabwall: mklabwall.o
 	$(CC) -o $@ $^ $(LDFLAGS)
 
-mkwallpaper.o: mkwallpaper.c
+mklabwall.o: mklabwall.c
 	$(CC) -o $@ $(CFLAGS) -c $^
 
 install:
-	install -s -m 0755 mkwallpaper $(DESTDIR)/usr/bin/
+	install -s -m 0755 mklabwall $(DESTDIR)/usr/local/bin/
 
 clean:
-	-rm -f *.o mkwallpaper
+	-rm -f *.o mklabwall

utils/mklabwall/README.md

@@ -0,0 +1,49 @@
+# mklabwall
+
+This is a CLI program to generate wallpapers specifically for `labwc`.
+It will generate by default `svg` wallpapers with `#0d1117` background
+color with the `labwc` logo and text at `1366 x 768` resolution. Colors,
+font family and dimensions can be overridden with the options. `labwc`
+icons and text are hard coded.
+
+### build
+
+```
+make
+
+# optional as root
+
+make install
+```
+
+The binary installs to `/usr/local/bin`. Edit the `Makefile` if you want
+to install to an alternate location.
+
+### usage
+
+```
+mklabwall
+	-f font[str]
+	-s fontsize[int]
+	-v font_vertical_position[int]
+	-h font_horizontal_position[int]
+	-n filename[str]
+	-z fancy xD [no arg] (an easter egg!)
+	-b background color["float float float"]
+	-p save as png [no arg - default is svg]
+	-l logo only [no arg]
+	-r resolution ["int int"]
+
+at least 1 option is required
+file is saved to "HOME/labwcwall" or "HOME/myfile" with -n [arg] option
+Version 0.0.1
+```
+
+Images are saved to your `$HOME` directory or any subdir of `$HOME` as
+long as that subdir already exists. If it doesn't an error is produced.
+
+The demonstration script `demo.sh` will produce 8 images in `$HOME/demo'
+
+### inspiration
+
+See [mkwallpaper](https://github.com/01micko/mkwallpaper)

utils/mklabwall/demo.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# This script generates 8 walls with some different options. GPLv2
+# requires 'bc', 'bash', 'mklabwall'
+
+# simple conversion hex to float
+find_color() {
+	echo $(printf "%d" "0x${1}") / 255 | bc -l
+}
+
+export -f find_color
+
+[ -d "$HOME/dem" ] || mkdir -p $HOME/dem
+F=nunito
+res="1280 720"
+L=''
+x=0
+for i in '#1E333A' '#1E90B5' '#1EB544' '#9BB51E' '#B5651E' '#B51E2A' '#B51E82' '#3A1EB5'; do
+	BR=${i:1:2}; BG=${i:3:2}; BB=${i:5:2};
+	BHR=$(find_color $BR)
+	BHG=$(find_color $BG)
+	BHB=$(find_color $BB)
+	[ $x -gt 3 ] && L=-l
+	mklabwall -f $F -r "$res" -b "${BHR:0:4} ${BHG:0:4} ${BHB:0:4}" $L -n dem/lwall${x}
+	x=$(($x + 1))
+done

utils/mklabwall/mklabwall.c

@@ -0,0 +1,294 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ * 
+ */
+#include <stdio.h>
+#include <unistd.h>
+
+#include <cairo-svg.h>
+#include <pango/pangocairo.h>
+
+#define THIS_VERSION "0.0.1"
+
+void usage() {
+	printf("mklabwall\n"
+		"\t-f font[str]\n"
+		"\t-s fontsize[int]\n"
+		"\t-v font_vertical_position[int]\n"
+		"\t-h font_horizontal_position[int]\n"
+		"\t-n filename[str]\n"
+		"\t-z fancy xD [no arg] (an easter egg!)\n"
+		"\t-b background color[\"float float float\"]\n"
+		"\t-p save as png [no arg - default is svg]\n"
+		"\t-l logo only [no arg]\n"
+		"\t-r resolution [\"int int\"]\n\n"
+		"at least 1 option is required\n"
+		"file is saved to \"HOME/labwcwall\" or \"HOME/myfile\" with -n [arg] option\n"
+		"Version %s\n", THIS_VERSION);
+	exit (EXIT_SUCCESS);
+}
+
+int main(int argc, char **argv) {
+	if (argc < 2) {
+		usage();
+		return 0;
+	}
+	char *res = NULL;
+	char *font = "Sans";
+	char *bg = NULL;
+	int f_size = 116;
+	char *name = "labwcwall";
+	int fnt_vert = 32;
+	int fnt_hor = 290;
+	int zflag = 0;
+	int pflag = 0;
+	int lflag = 0;
+	int d;
+	while ((d = getopt (argc, argv, "r:f:b:s:n:v:h:zpl")) != -1) {
+		switch (d)
+		{
+			case 'r':
+				res = optarg;
+				break;
+			case 'f':
+				font = optarg;
+				break;
+			case 'b':
+				bg = optarg;
+				break;
+			case 's':
+				f_size = atoi(optarg);
+				break;
+			case 'n':
+				name = optarg;
+				break;
+			case 'v':
+				fnt_vert = atoi(optarg);
+				break;
+			case 'h':
+				fnt_hor = atoi(optarg);
+				break;
+			case 'z':
+				zflag = 1;
+				break;
+			case 'p':
+				pflag = 1;
+				break;
+			case 'l':
+				lflag = 1;
+				break;
+			default:
+				usage();
+
+		}
+	}
+
+	/* resolution */
+
+	float w, h;
+	if (!res) {
+		w = 1366; 
+		h = 768;
+	} else {
+		char pre_w[8];
+		char pre_h[8];
+		int res_result = sscanf(res, "%s %s", pre_w, pre_h);
+		if (res_result < 2) {
+			fprintf(stderr,"ERROR: less than 2 x y resolution aguments!\n");
+			exit (EXIT_FAILURE);
+		}
+		w = atof(pre_w);
+		h = atof(pre_h);
+	}
+	/* /resolution */
+
+	/* logo and text dims*/
+	int img_wdth = 600;
+	int img_hght = 184;
+	int xh = 0;
+	if (zflag == 1) {
+		xh = 52;
+		img_hght = img_hght + xh;
+	}
+	if (lflag == 1) {
+		img_wdth = 250;
+	}
+	/* /logo and text dims*/
+
+	/* file save name/fmt */
+	char destimg[PATH_MAX];
+	char *dest = getenv("HOME");
+	cairo_surface_t *cs;
+	if (pflag == 0) {
+		snprintf(destimg, sizeof(destimg), "%s/%s.svg", dest, name);
+		cs = cairo_svg_surface_create(destimg, w, h);
+	} else {
+		cs = cairo_image_surface_create
+							(CAIRO_FORMAT_ARGB32, w, h);
+		snprintf(destimg, sizeof(destimg), "%s/%s.png", dest, name);
+	}
+	/* /file save name/fmt */
+
+	cairo_t *c;
+	c = cairo_create(cs);
+
+	/* icon and position */
+	if (!bg) {
+		cairo_set_source_rgb (c, 0.05, 0.06, 0.09); /* default #0d1117 */
+	} else {
+		float r, g , b;
+		char red[8];
+		char green[8];
+		char blue[8];
+		int result = sscanf(bg, "%s %s %s", red, green, blue);
+		if (result < 3) {
+			fprintf(stderr,"ERROR: less than 3 colour aguments!\n");
+			exit (EXIT_FAILURE);
+		}
+		r = atof(red);
+		g = atof(green);
+		b = atof(blue);
+		cairo_set_source_rgb (c, r, g, b);
+	}
+	cairo_rectangle(c, 0.0, 0.0, w, h);
+	cairo_fill(c);
+
+	/** The image and text size are hard coded to 600 * (184 + xh)
+	 * and the image only is hard coded to 250 * (184 + xh)
+	 *  so just need to scale that to suit the resolution with a scale
+	 *  factor. We'll use 1366 x 768 as 1:1, well 1366 anyway as to
+	 *  account for different aspect ratios.
+	 *  Then work out where to place the image and text in the centre
+	 *  of our wallpaper
+	 */
+
+	float sf = w / 1366;
+	printf("scale factor: %f\n", sf);
+	float x_pos = w / 2;
+	float y_pos = h / 2;
+	float new_wdth = (float)img_wdth * sf;
+	float new_hght = (float)img_hght * sf;
+	x_pos = x_pos - (new_wdth / 2);
+	y_pos = y_pos - (new_hght / 2);
+	xh = (float)xh * sf;
+
+	/* fancy */ 
+	if (zflag == 1) {
+		cairo_set_source_rgba (c, 0.81, 0.18, 0.56, 0.3);
+		cairo_move_to (c, x_pos + (102 * sf), y_pos + (24 * sf));
+		cairo_line_to (c, x_pos + (26 * sf), y_pos + (45 * sf));
+		cairo_curve_to (c, x_pos + (19 * sf), y_pos + (46 * sf), x_pos + (19 * sf), y_pos + (51 * sf), x_pos + (20 * sf), y_pos + (57 * sf));
+		cairo_line_to (c, x_pos + (31 * sf), y_pos + (146 * sf));
+		cairo_line_to (c, x_pos + (112 * sf),y_pos +  (114 * sf));
+		cairo_line_to (c, x_pos + (112 * sf), y_pos + (28 * sf));
+		cairo_curve_to (c, x_pos + (111 * sf), y_pos + (24 * sf), x_pos + (107 * sf), y_pos + (23 * sf), x_pos + (102 * sf), y_pos + (24 * sf));
+		cairo_close_path (c);
+		cairo_fill (c);
+
+		cairo_set_source_rgba (c, 0.94, 0.84, 0.05, 0.3);
+		cairo_move_to (c, x_pos + (131 * sf), y_pos + (24 * sf));
+		cairo_line_to (c, x_pos + (207 * sf), y_pos + (45 * sf));
+		cairo_curve_to (c, x_pos + (214 * sf), y_pos + (46 * sf), x_pos + (214 * sf), y_pos + (51 * sf), x_pos + (213 * sf), y_pos + (57 * sf));
+		cairo_line_to (c, x_pos + (201 * sf), y_pos + (146 * sf));
+		cairo_line_to (c, x_pos + (121 * sf), y_pos + (114 * sf));
+		cairo_line_to (c, x_pos + (121 * sf), y_pos + (28 * sf));
+		cairo_curve_to (c, x_pos + (122 * sf), y_pos + (24 * sf), x_pos + (126 * sf), y_pos + (23 * sf), x_pos + (131 * sf), y_pos + (24 * sf));
+		cairo_close_path (c);
+		cairo_fill (c);
+	} /* /fancy */
+
+	cairo_set_source_rgb (c, 0.94, 0.84, 0.05);
+	cairo_set_line_cap (c, CAIRO_LINE_CAP_ROUND);
+	cairo_set_line_join (c, CAIRO_LINE_JOIN_ROUND);
+
+	cairo_move_to (c, x_pos + (7 * sf), y_pos + (6 * sf) + xh);
+	cairo_line_to (c, x_pos + (106 * sf), y_pos + (64 * sf) + xh);
+	cairo_line_to (c, x_pos + (106 * sf), y_pos + (178 * sf) + xh);
+	cairo_line_to (c, x_pos + (24 * sf), y_pos + (113 * sf) + xh);
+	cairo_line_to (c, x_pos + (7 * sf), y_pos + (6 * sf) + xh);
+	cairo_close_path (c);
+	cairo_fill(c);
+
+	cairo_set_line_width (c, 12.0 * sf);
+	cairo_move_to (c, x_pos + (7 * sf), y_pos + (6 * sf) + xh);
+	cairo_line_to (c, x_pos + (106 * sf), y_pos + (64 * sf) + xh);
+	cairo_line_to (c, x_pos + (106 * sf), y_pos + (178 * sf) + xh);
+	cairo_line_to (c, x_pos + (24 * sf), y_pos + (113 * sf) + xh);
+	cairo_line_to (c, x_pos + (7 * sf), y_pos + (6 * sf) + xh);
+	cairo_close_path (c);	
+	cairo_stroke (c);
+
+	cairo_set_source_rgb (c, 0.81, 0.18, 0.56);
+	cairo_move_to (c, x_pos + (226 * sf), y_pos + (6 * sf) + xh);
+	cairo_line_to (c, x_pos + (127 * sf), y_pos + (64 * sf) + xh);
+	cairo_line_to (c, x_pos + (127 * sf), y_pos + (178 * sf) + xh);
+	cairo_line_to (c, x_pos + (209 * sf), y_pos + (113 * sf) + xh);
+	cairo_line_to (c, x_pos + (226 * sf), y_pos + (6 * sf) + xh);
+	cairo_close_path (c);
+	cairo_fill (c);
+
+	cairo_move_to (c, x_pos + (226 * sf), y_pos + (6 * sf) + xh);
+	cairo_line_to (c, x_pos + (127 * sf), y_pos + (64 * sf) + xh);
+	cairo_line_to (c, x_pos + (127 * sf), y_pos + (178 * sf) + xh);
+	cairo_line_to (c, x_pos + (209 * sf), y_pos + (113 * sf) + xh);
+	cairo_line_to (c, x_pos + (226 * sf), y_pos + (6 * sf) + xh);
+	cairo_close_path (c);
+	cairo_stroke (c);
+
+	if (lflag == 0) {
+		/* font */
+		float rgb = 0.97; /* font color */
+		char *label = "labwc";
+
+		PangoLayout *layout;
+		PangoFontDescription *font_description;
+
+		font_description = pango_font_description_new ();
+		pango_font_description_set_family (font_description, font);
+		pango_font_description_set_style (font_description, PANGO_STYLE_NORMAL ); /*PANGO_STYLE_NORMAL = 0, PANGO_STYLE_OBLIQUE = 1*/
+		pango_font_description_set_weight (font_description, PANGO_WEIGHT_NORMAL); /*PANGO_WEIGHT_NORMAL = 400, PANGO_WEIGHT_BOLD = 700*/
+		pango_font_description_set_absolute_size (font_description, f_size * sf * PANGO_SCALE);
+		layout = pango_cairo_create_layout (c);
+		pango_layout_set_font_description (layout, font_description);
+		pango_layout_set_alignment (layout, PANGO_ALIGN_LEFT); /*PANGO_ALIGN_LEFT, PANGO_ALIGN_CENTER, PANGO_ALIGN_RIGHT)*/
+		pango_layout_set_wrap (layout, PANGO_WRAP_WORD);
+		pango_layout_set_text (layout, label, -1);
+
+		/* position of text */
+		int xposi = x_pos + (fnt_hor * sf);
+		int yposi = y_pos + (fnt_vert * sf) + xh;
+		cairo_move_to (c, xposi , 1 * yposi);
+		cairo_set_source_rgb (c, rgb, rgb, rgb);
+		pango_cairo_show_layout (c, layout);
+		pango_font_description_free (font_description);
+		g_object_unref (layout);
+	}
+	cairo_status_t rest = cairo_surface_status(cs);
+	const char *ret;
+	ret = cairo_status_to_string (rest);
+	if (rest != CAIRO_STATUS_SUCCESS) {
+		cairo_surface_destroy (cs);
+		cairo_destroy (c);
+		fprintf (stderr, "Cairo : %s\n", ret);
+		exit (EXIT_FAILURE);
+	}
+	/* cleanup */
+	cairo_surface_destroy (cs);
+	cairo_destroy (c);
+	fprintf (stdout, "image saved to %s\n", destimg);
+
+	return 0;
+}