croptool

commit 0cb921097da75cd5b5a689f5ec79b11eb4bdad80
parent cddaf1fa451de53f5de300768988db96c48cb500
Author: lumidify <nobody@lumidify.org>
Date:   Tue, 21 Sep 2021 16:28:54 +0200

Clean up a bit

Diffstat:
M
croptool.1
 | 
11
+++++++++--
M
croptool.c
 | 
5
++++-
M
croptool_crop.1
 | 
2
+-

3 files changed, 14 insertions(+), 4 deletions(-)
diff --git a/croptool.1 b/croptool.1
@@ -63,6 +63,7 @@ The cropping commands for each image are output using the format given by
 .Fl f ,
 or the default of
 .Ql croptool_crop %wx%h+%l+%t '%f' .
+.Pp
 The following substitutions are performed:
 .Bl -tag -width Ds
 .It %%
@@ -87,10 +88,16 @@ Warning: This is printed as is, without any escaping.
 .Pp
 If an unknown substitution is encountered, a warning is printed to
 standard error and the characters are printed verbatim.
+.Pp
+Note that the coordinates are adjusted so they are entirely within the
+image, even if the original cropping rectangle was located partially
+outside.
+If the cropping rectangle was located entirely outside of the image,
+no command is printed for it.
 .Sh KEYBINDS
 .Bl -tag -width Ds
 .It ARROW LEFT
-Go to the last image.
+Go to the previous image.
 .It ARROW RIGHT
 Go to the next image.
 .It RETURN
@@ -101,7 +108,7 @@ In other words, when switching to an image that is a different size and
 thus scaled differently, the displayed rectangle will stay the same even
 though the pixels covered in the original image are different.
 .It SHIFT + RETURN
-Go to the last image, copying the current cropping rectangle.
+Go to the previous image, copying the current cropping rectangle.
 The same caveat as above applies.
 .It TAB
 Switch the color of the cropping rectangle between the primary and secondary colors.
diff --git a/croptool.c b/croptool.c
@@ -293,7 +293,10 @@ setup(int argc, char *argv[]) {
 
 	state.cur_image = NULL;
 	state.selections = malloc(argc * sizeof(struct Selection));
-	if (!state.selections) exit(1);
+	if (!state.selections) {
+		fprintf(stderr, "Unable to allocate memory.\n");
+		exit(1);
+	}
 	state.num_files = argc;
 	state.filenames = argv;
 	state.cur_selection = -1;
diff --git a/croptool_crop.1 b/croptool_crop.1
@@ -1,4 +1,4 @@
-.Dd March 6, 2021
+.Dd September 21, 2021
 .Dt CROPTOOL_CROP 1
 .Os
 .Sh NAME