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Implement trivial wide thumbnail production

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Also make libwebp a required dependency.
This commit is contained in:
Přemysl Eric Janouch
2021-12-26 19:41:42 +01:00
parent 2f993502fc
commit 336053f24d
8 changed files with 354 additions and 76 deletions
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40
fiv-view.c
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@@ -797,18 +797,7 @@ save_as(FivView *self, cairo_surface_t *frame)
"_Cancel", GTK_RESPONSE_CANCEL, "_Save", GTK_RESPONSE_ACCEPT, NULL);
GtkFileChooser *chooser = GTK_FILE_CHOOSER(dialog);
// TODO(p): Consider a hard dependency on libwebp, or clean this up.
#ifdef HAVE_LIBWEBP
// This is the best general format: supports lossless encoding, animations,
// alpha channel, and Exif and ICC profile metadata.
// PNG is another viable option, but sPNG can't do APNG, Wuffs can't save,
// and libpng is a pain in the arse.
GtkFileFilter *webp_filter = gtk_file_filter_new();
gtk_file_filter_add_mime_type(webp_filter, "image/webp");
gtk_file_filter_add_pattern(webp_filter, "*.webp");
gtk_file_filter_set_name(webp_filter, "Lossless WebP (*.webp)");
gtk_file_chooser_add_filter(chooser, webp_filter);
gtk_file_chooser_set_do_overwrite_confirmation(chooser, TRUE);
// Note that GTK+'s save dialog is too stupid to automatically change
// the extension when user changes the filter. Presumably,
@@ -819,14 +808,21 @@ save_as(FivView *self, cairo_surface_t *frame)
g_free(basename);
gtk_file_chooser_set_current_name(chooser, name);
g_free(name);
#endif // HAVE_LIBWEBP
gtk_file_chooser_set_do_overwrite_confirmation(chooser, TRUE);
gchar *dirname = g_path_get_dirname(self->path);
gtk_file_chooser_set_current_folder(chooser, dirname);
g_free(dirname);
// This is the best general format: supports lossless encoding, animations,
// alpha channel, and Exif and ICC profile metadata.
// PNG is another viable option, but sPNG can't do APNG, Wuffs can't save,
// and libpng is a pain in the arse.
GtkFileFilter *webp_filter = gtk_file_filter_new();
gtk_file_filter_add_mime_type(webp_filter, "image/webp");
gtk_file_filter_add_pattern(webp_filter, "*.webp");
gtk_file_filter_set_name(webp_filter, "Lossless WebP (*.webp)");
gtk_file_chooser_add_filter(chooser, webp_filter);
// The format is supported by Exiv2 and ExifTool.
// This is mostly a developer tool.
GtkFileFilter *exv_filter = gtk_file_filter_new();
@@ -835,22 +831,16 @@ save_as(FivView *self, cairo_surface_t *frame)
gtk_file_filter_set_name(exv_filter, "Exiv2 metadata (*.exv)");
gtk_file_chooser_add_filter(chooser, exv_filter);
GError *error = NULL;
switch (gtk_dialog_run(GTK_DIALOG(dialog))) {
gchar *path;
case GTK_RESPONSE_ACCEPT:
path = gtk_file_chooser_get_filename(chooser);
GError *error = NULL;
#ifdef HAVE_LIBWEBP
if (gtk_file_chooser_get_filter(chooser) == webp_filter)
fiv_io_save(self->page, frame, target, path, &error);
else
#endif // HAVE_LIBWEBP
fiv_io_save_metadata(self->page, path, &error);
if (error)
if (!(gtk_file_chooser_get_filter(chooser) == webp_filter
? fiv_io_save(self->page, frame, target, path, &error)
: fiv_io_save_metadata(self->page, path, &error)))
show_error_dialog(window, error);
g_free(path);
// Fall-through.
default:
gtk_widget_destroy(dialog);