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gui/artwork: Add a preview widget to the file chooser dialog 

This lets users actually see images before selecting them for ablum art.

Implements #59: Add preview widget to album art chooser
Signed-off-by: Anna Schumaker <Anna@NoWheyCreamery.com>
This commit is contained in:
Anna Schumaker 2016-07-27 10:45:59 -04:00
parent 343dec5d8d
commit 160295a6cc
1 changed files with 32 additions and 3 deletions
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35
gui/artwork.c
View File

@ -5,6 +5,8 @@
#include <gui/builder.h>
#include <glib/gi18n.h>
#define ARTWORK_PREVIEW_SIZE 150
static struct album *__artwork_cur_album = NULL;
static unsigned int __artwork_timeo_id = 0;
@ -88,18 +90,41 @@ void gui_artwork_set_cover(void)
__artwork_timeo_id = g_timeout_add(2000, __artwork_timeout, NULL);
}
void __artwork_update_preview(GtkFileChooser *chooser, gpointer data)
{
GtkWidget *preview = gtk_file_chooser_get_preview_widget(chooser);
gchar *path = gtk_file_chooser_get_preview_filename(chooser);
GdkPixbuf *pix = gdk_pixbuf_new_from_file(path, NULL);
unsigned int old_w, scale;
cairo_surface_t *surface;
if (pix) {
old_w = gdk_pixbuf_get_width(pix);
scale = old_w / ARTWORK_PREVIEW_SIZE;
surface = gdk_cairo_surface_create_from_pixbuf(pix, scale, NULL);
if (surface) {
gtk_image_set_from_surface(GTK_IMAGE(preview), surface);
cairo_surface_destroy(surface);
}
}
g_free(path);
}
void __artwork_select_cover(GtkButton *button)
{
struct track *track = audio_cur_track();
GtkFileFilter *filter;
GtkWidget *dialog;
GtkWidget *preview;
gchar *path;
if (!track)
return;
filter = gtk_file_filter_new();
dialog = gtk_file_chooser_dialog_new("Choose an image",
filter = gtk_file_filter_new();
preview = gtk_image_new_from_icon_name("", GTK_ICON_SIZE_DIALOG);
dialog = gtk_file_chooser_dialog_new("Choose an image",
GTK_WINDOW(gui_builder_widget("o_window")),
GTK_FILE_CHOOSER_ACTION_OPEN,
_("_Cancel"), GTK_RESPONSE_CANCEL,
@ -108,7 +133,10 @@ void __artwork_select_cover(GtkButton *button)
gtk_file_filter_add_mime_type(filter, "image/*");
gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(dialog), filter);
gtk_file_chooser_set_preview_widget_active(GTK_FILE_CHOOSER(dialog), true);
gtk_file_chooser_set_preview_widget(GTK_FILE_CHOOSER(dialog), preview);
gtk_file_chooser_set_use_preview_label(GTK_FILE_CHOOSER(dialog), false);
g_signal_connect(dialog, "update-preview", (GCallback)__artwork_update_preview, NULL);
if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
path = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
@ -118,5 +146,6 @@ void __artwork_select_cover(GtkButton *button)
}
gtk_widget_destroy(dialog);
gtk_widget_destroy(preview);
g_object_unref(filter);
}