ocarina/gui/audio.c

/*
 * Copyright 2014 (c) Anna Schumaker.
 */
#include <core/audio.h>
#include <core/collection.h>
#include <core/playlist.h>
#include <core/string.h>
#include <gui/audio.h>
#include <gui/builder.h>
#include <gui/idle.h>
#include <gui/view.h>
#include <glib/gi18n.h>

static bool __audio_have_cover = false;

static inline void __audio_set_label(const gchar *label,  const gchar *size,
				     const gchar *text)
{
	gchar *markup = g_markup_printf_escaped("<span size='%s'>%s</span>",
						size, text);
	gtk_label_set_markup(GTK_LABEL(gui_builder_widget(label)), markup);
	g_free(markup);
}

static inline void __audio_set_time_label(const gchar *label, unsigned int time)
{
	gchar *str = string_sec2str(time);
	__audio_set_label(label, "large", str);
	g_free(str);
}

static GdkPixbuf *__audio_get_pixbuf(struct track *track)
{
	gchar *path = album_artwork_path(track->tr_album);
	GdkPixbuf *pix;
	int height;

	if (!path)
		return NULL;

	height = gui_builder_widget_height("o_position") +
		 gui_builder_widget_height("o_tags");
	pix    = gdk_pixbuf_new_from_file_at_scale(path, -1, height, true, NULL);
	g_free(path);

	return pix;
}

static void __audio_get_cover(struct track *track)
{
	GtkImage  *cover = GTK_IMAGE(gui_builder_widget("o_cover"));
	GdkPixbuf *pix   = __audio_get_pixbuf(track);

	if (pix) {
		gtk_image_set_from_pixbuf(cover, pix);
		g_object_unref(G_OBJECT(pix));
	} else
		gtk_image_set_from_icon_name(cover, "image-missing", GTK_ICON_SIZE_DIALOG);

	gtk_widget_set_sensitive(GTK_WIDGET(cover), pix != NULL);
	__audio_have_cover = (pix != NULL);
}

void __audio_select_cover(GtkButton *button)
{
	GtkFileFilter *filter;
	GtkWidget *dialog;
	gchar *path;

	filter = gtk_file_filter_new();
	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,
				_("_Open"),   GTK_RESPONSE_ACCEPT,
				NULL);

	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);

	if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
		path = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
		album_artwork_import(audio_cur_track()->tr_album, path);
		g_free(path);
	}

	gtk_widget_destroy(dialog);
	g_object_unref(filter);
}

static void __audio_load(struct track *track)
{
	__audio_set_label("o_title",  "xx-large", track->tr_title);
	__audio_set_label("o_artist", "x-large",  track->tr_artist->ar_name);
	__audio_set_label("o_album",  "x-large",  track->tr_album->al_name);
	__audio_set_time_label("o_duration", track->tr_length);

	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(gui_builder_widget("o_hide")),
				     playlist_has(PL_HIDDEN, track));
	gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(gui_builder_widget("o_favorite")),
				     playlist_has(PL_FAVORITED, track));

	gui_view_scroll();
	__audio_get_cover(track);
}

static void __audio_change_state(GstState state)
{
	if (state == GST_STATE_PLAYING) {
		gtk_widget_hide(gui_builder_widget("o_play"));
		gtk_widget_show(gui_builder_widget("o_pause"));
	} else {
		gtk_widget_show(gui_builder_widget("o_play"));
		gtk_widget_hide(gui_builder_widget("o_pause"));
	}
}

static void __audio_config_pause(int n)
{
	GtkComboBox *combo = GTK_COMBO_BOX(gui_builder_widget("o_pause_after"));
	gtk_combo_box_set_active(combo, n + 1);
}

void __audio_pause_changed(GtkComboBox *combo, gpointer data)
{
	int val = gtk_combo_box_get_active(combo) - 1;
	audio_pause_after(val);
}

void __audio_seek(GtkRange *range, GtkScrollType type, double value, gpointer data)
{
	audio_seek(value * GST_SECOND);
}

void __audio_favorite(GtkToggleButton *toggle, gpointer data)
{
	if (gtk_toggle_button_get_active(toggle))
		playlist_add(PL_FAVORITED, audio_cur_track());
	else
		playlist_remove(PL_FAVORITED, audio_cur_track());
}

void __audio_hide(GtkToggleButton *toggle, gpointer data)
{
	if (gtk_toggle_button_get_active(toggle)) {
		if (collection_ban(audio_cur_track()))
			audio_next();
	} else
		collection_unban(audio_cur_track());
}

static int __audio_timeout(gpointer data)
{
	struct track  *track    = audio_cur_track();
	GtkAdjustment *progress = data;

	gtk_adjustment_set_upper(progress,   audio_duration() / GST_SECOND);
	gtk_adjustment_set_value(progress,   audio_position() / GST_SECOND);
	__audio_set_time_label("o_position", audio_position() / GST_SECOND);

	if (track && !__audio_have_cover)
		__audio_get_cover(track);

	return G_SOURCE_CONTINUE;
}

gboolean __audio_can_accel(GtkWidget *widget, guint signal_id)
{
	GtkWindow *window = GTK_WINDOW(gui_builder_widget("o_window"));
	g_signal_stop_emission_by_name(widget, "can-activate-accel");
	return !GTK_IS_ENTRY(gtk_window_get_focus(window)) &&
	       gtk_widget_is_visible(widget) &&
	       gtk_widget_is_sensitive(widget);
}



struct audio_ops audio_ops = {
	__audio_load,
	__audio_change_state,
	__audio_config_pause,
};

void gui_audio_init()
{
	g_timeout_add(500, __audio_timeout, gui_builder_object("o_progress"));
}

#ifdef CONFIG_TESTING
void test_gui_audio_timeout()
{
	__audio_timeout(gui_builder_object("o_progress"));
}
#endif /* CONFIG_TESTING */