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image-tool: Allow showing images side-by-side

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This is useful for comparisons.
This commit is contained in:
Matthias Clasen
2024-07-26 07:42:39 -04:00
parent 150f57f706
commit feca09b8a4
2 changed files with 47 additions and 35 deletions
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4
docs/reference/gtk/gtk4-image-tool.rst
View File

@@ -20,7 +20,7 @@ SYNOPSIS
| **gtk4-image-tool** convert [OPTIONS...] <FILE1> <FILE2>
| **gtk4-image-tool** info [OPTIONS...] <FILE>
| **gtk4-image-tool** relabel [OPTIONS...] <FILE1> <FILE2>
| **gtk4-image-tool** show [OPTIONS...] <FILE>
| **gtk4-image-tool** show [OPTIONS...] <FILE>...
DESCRIPTION
-----------
@@ -39,7 +39,7 @@ as its format and color state.
Showing
^^^^^^^
The ``show`` command displays the image.
The ``show`` command displays one or more images, side-by-side.
Compare
^^^^^^^

78
tools/gtk-image-tool-show.c
View File

@@ -29,17 +29,6 @@
#include <gtk/gtk.h>
#include "gtk-image-tool.h"
static void
set_window_title (GtkWindow *window,
const char *filename)
{
char *name;
name = g_path_get_basename (filename);
gtk_window_set_title (window, name);
g_free (name);
}
static void
quit_cb (GtkWidget *widget,
gpointer user_data)
@@ -52,36 +41,65 @@ quit_cb (GtkWidget *widget,
}
static void
show_file (const char *filename)
show_files (char **filenames)
{
GdkTexture *texture;
GtkWidget *sw;
GtkWidget *window;
gboolean done = FALSE;
GtkWidget *picture;
GString *title;
GtkWidget *box;
texture = load_image_file (filename);
window = gtk_window_new ();
g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
picture = gtk_picture_new_for_paintable (GDK_PAINTABLE (texture));
gtk_picture_set_can_shrink (GTK_PICTURE (picture), FALSE);
gtk_picture_set_content_fit (GTK_PICTURE (picture), GTK_CONTENT_FIT_SCALE_DOWN);
title = g_string_new ("");
for (int i = 0; i < g_strv_length (filenames); i++)
{
char *name = g_path_get_basename (filenames[i]);
if (title->len > 0)
g_string_append (title, " / ");
g_string_append (title, name);
g_free (name);
}
gtk_window_set_title (GTK_WINDOW (window), title->str);
g_string_free (title, TRUE);
sw = gtk_scrolled_window_new ();
gtk_scrolled_window_set_propagate_natural_width (GTK_SCROLLED_WINDOW (sw), TRUE);
gtk_scrolled_window_set_propagate_natural_height (GTK_SCROLLED_WINDOW (sw), TRUE);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), picture);
window = gtk_window_new ();
set_window_title (GTK_WINDOW (window), filename);
gtk_window_set_child (GTK_WINDOW (window), sw);
box = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 0);
gtk_scrolled_window_set_child (GTK_SCROLLED_WINDOW (sw), box);
for (int i = 0; i < g_strv_length (filenames); i++)
{
GdkTexture *texture;
GtkWidget *picture;
texture = load_image_file (filenames[i]);
picture = gtk_picture_new_for_paintable (GDK_PAINTABLE (texture));
gtk_picture_set_can_shrink (GTK_PICTURE (picture), FALSE);
gtk_picture_set_content_fit (GTK_PICTURE (picture), GTK_CONTENT_FIT_SCALE_DOWN);
if (i > 0)
gtk_box_append (GTK_BOX (box), gtk_separator_new (GTK_ORIENTATION_VERTICAL));
gtk_box_append (GTK_BOX (box), picture);
g_object_unref (texture);
}
gtk_window_present (GTK_WINDOW (window));
g_signal_connect (window, "destroy", G_CALLBACK (quit_cb), &done);
while (!done)
g_main_context_iteration (NULL, TRUE);
g_object_unref (texture);
}
void
@@ -91,7 +109,7 @@ do_show (int *argc,
GOptionContext *context;
char **filenames = NULL;
const GOptionEntry entries[] = {
{ G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &filenames, NULL, N_("FILE") },
{ G_OPTION_REMAINING, 0, 0, G_OPTION_ARG_FILENAME_ARRAY, &filenames, NULL, N_("FILE…") },
{ NULL, }
};
GError *error = NULL;
@@ -100,7 +118,7 @@ do_show (int *argc,
context = g_option_context_new (NULL);
g_option_context_set_translation_domain (context, GETTEXT_PACKAGE);
g_option_context_add_main_entries (context, entries, NULL);
g_option_context_set_summary (context, _("Show the image."));
g_option_context_set_summary (context, _("Show one or more images."));
if (!g_option_context_parse (context, argc, (char ***)argv, &error))
{
@@ -117,13 +135,7 @@ do_show (int *argc,
exit (1);
}
if (g_strv_length (filenames) > 1)
{
g_printerr (_("Can only accept a single image file\n"));
exit (1);
}
show_file (filenames[0]);
show_files (filenames);
g_strfreev (filenames);
}