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path: root/window_main.c
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//#include <unistd.h>
#include <string.h>

#include <glib/gstdio.h>
#include <gdk-pixbuf/gdk-pixbuf.h>

#include "window_main.h"
#include "walls_ui.h"
#include "db.h"
#include "browse_model.h"
#include "walls_model.h"
#include "wallpapers.h"
#include "thumbnails.h"

struct wallpaper_t *cur_wall = NULL;
GdkPixbuf *orig_pixbuf = NULL;
gint last_width = 0,
	 last_height = 0,
	 last_pos = 0;

GtkImage *image = NULL;
GtkWidget *layout = NULL;
GtkStatusbar *statusbar;
GtkIconView *thumbview;

GThread *add_thread = NULL,
		*thumb_thread = NULL;

guint image_context;

void on_foldtree_selection_changed(GtkTreeSelection *treeselection, gpointer user_data);

inline static void foldtree_create_model(GtkTreeView *foldtree) {
	GtkTreeModel *tree_model;

	tree_model = GTK_TREE_MODEL(browse_model_new());
	gtk_tree_view_set_model(foldtree, GTK_TREE_MODEL(tree_model));
}

inline static void foldtree_init(GtkTreeView *foldtree) {
	GtkTreeViewColumn *col1;
	GtkCellRenderer *renderer;
	GtkTreeSelection *selection;

	col1 = gtk_tree_view_column_new();
	gtk_tree_view_column_set_title(col1, "Name");
	gtk_tree_view_append_column(foldtree, col1);

	renderer = gtk_cell_renderer_text_new();
	gtk_tree_view_column_pack_start(col1, renderer, TRUE);
	gtk_tree_view_column_add_attribute(col1, renderer, "text", 0);

	foldtree_create_model(foldtree);

	selection = gtk_tree_view_get_selection(foldtree);
	g_signal_connect(selection, "changed", G_CALLBACK(on_foldtree_selection_changed), foldtree);
}

static void resize_pixbuf() {
	GdkPixbuf *pb;
	GdkWindow *window;
	gint win_width, win_height, img_width, img_height, width, height;
	gdouble scalex, scaley, width_ratio, height_ratio, max_ratio;

	window = gtk_widget_get_window(layout);
	gdk_drawable_get_size(window, &win_width, &win_height);
	gtk_layout_set_size(GTK_LAYOUT(layout), win_width, win_height);
	img_width = gdk_pixbuf_get_width(orig_pixbuf);
	img_height = gdk_pixbuf_get_height(orig_pixbuf);

	/* do we need to resize? */
	if(img_width > win_width || img_height > win_height) {
		/* resize by width */
		width_ratio = (gdouble)img_width / (gdouble)win_width;
		height_ratio = (gdouble)img_height / (gdouble)win_height;
		if(width_ratio > height_ratio) {
			width = win_width;
			height = (gint)(1.0 / width_ratio * img_height);
			scalex = (gdouble)width / (gdouble)img_width;
			scaley = (gdouble)height / (gdouble)img_height;
		} else { /* resize by height */
			height = win_height;
			width = (gint)(1.0 / height_ratio * img_width);
			scalex = (gdouble)width / (gdouble)img_width;
			scaley = (gdouble)height / (gdouble)img_height;
		}
		pb = gdk_pixbuf_new(GDK_COLORSPACE_RGB, TRUE, 8, width, height);
		gdk_pixbuf_scale(orig_pixbuf, pb, 0, 0, width, height, 0, 0, scalex, scaley, GDK_INTERP_BILINEAR);
	} else {
		width = img_width;
		height = img_height;
		pb = gdk_pixbuf_copy(orig_pixbuf);
	}

	gtk_widget_set_size_request(GTK_WIDGET(image), width, height);
	gtk_widget_set_uposition(GTK_WIDGET(image), (width < win_width ? win_width / 2 - width / 2 : 0), (height < win_height ? win_height / 2 - height / 2 : 0));
	gtk_image_set_from_pixbuf(image, pb);
	g_object_unref(pb);
}

void on_window_size_allocate(GtkWidget *widget, GtkAllocation *allocation, gpointer user_data) {
	if(orig_pixbuf && (allocation->width != last_width || allocation->height != last_height)) {
		resize_pixbuf();
		last_width = allocation->width;
		last_height = allocation->height;
	}
}

void on_window_hpane_resized(GObject *gobject, GParamSpec *pspec, gpointer user_data) {
	gint pos;

	pos = gtk_paned_get_position(GTK_PANED(gobject));
	if(orig_pixbuf && pos != last_pos) {
		resize_pixbuf();
		last_pos = pos;
	}
}

static void load_pixbuf(const gchar *filepath) {
	GdkPixbuf *pb;
	GError *error = NULL;
	GdkWindow *window;
	sqlite_uint64 wallid;
	struct wallpaper_t *wall;
	gchar *msg, *base;

	if(orig_pixbuf)
		g_object_unref(orig_pixbuf);
	orig_pixbuf = gdk_pixbuf_new_from_file(filepath, &error);
	if(!orig_pixbuf) {
		g_warning("%s", error->message);
		g_error_free(error);
		return;
	}

	if(cur_wall) {
		g_free(cur_wall->filepath);
		g_free(cur_wall);
		cur_wall = NULL;
	}

	wallid = db_get_wallpaper(filepath);
	if(wallid) {
		wall = g_malloc(sizeof(struct wallpaper_t));
		if(db_get_wallpaper_data(wallid, wall)) {
			cur_wall = wall;
		} else {
			g_free(wall->filepath);
			g_free(wall);
		}
	}

	if(cur_wall) {
		base = g_path_get_basename(cur_wall->filepath);
		msg = g_strdup_printf("%s: %dx%d", base, cur_wall->width, cur_wall->height);
		gtk_statusbar_pop(statusbar, image_context);
		gtk_statusbar_push(statusbar, image_context, msg);
		g_free(base);
		g_free(msg);
	}

	resize_pixbuf();
}

static void fill_wall_list(GtkListStore *liststore, GArray *array) {
	GtkTreeIter iter;

	for(int i = 0; i < array->len; i++) {
		struct wallpaper_t *wall;
		wall = &g_array_index(array, struct wallpaper_t, i);

		gtk_list_store_append(liststore, &iter);
		gtk_list_store_set(liststore, &iter, 0, NULL, 1, wall->filepath, -1);
		g_free(wall->filepath);
	}
	g_array_free(array, TRUE);
}

void on_foldtree_selection_changed(GtkTreeSelection *treeselection, gpointer user_data) {
	GtkTreeModel *model;
	GtkTreeIter iter;
	struct directory_t *dir;
	GArray *array;
	GtkListStore *liststore;
	GError *error = NULL;

	if(gtk_tree_selection_get_selected(treeselection, &model, &iter)) {
		browse_model_get_dir_record(model, &iter, &dir);

		if(!db_get_wallpapers(dir->dirid, &array))
			return;

		liststore = gtk_list_store_new(2, GDK_TYPE_PIXBUF, G_TYPE_STRING);
		fill_wall_list(liststore, array);
		gtk_icon_view_set_model(thumbview, GTK_TREE_MODEL(liststore));

		thumb_thread = g_thread_create(add_thumbs_thread, liststore, FALSE, &error);

		if(!thumb_thread) {
			g_warning("%s", error->message);
			g_error_free(error);
		}
	}
}

void on_thumbview_selection_changed(GtkIconView *iconview, gpointer user_data) {
	GList *list;
	GValue value;
	const gchar *filename;
	GtkTreePath *path;
	GtkTreeModel *model;
	GtkTreeIter iter;

	list = gtk_icon_view_get_selected_items(iconview);
	if(list) {
		if(g_list_length(list) == 1) {
			path = g_list_nth_data(list, 0);
			model = gtk_icon_view_get_model(iconview);
			gtk_tree_model_get_iter(model, &iter, path);
			memset(&value, 0, sizeof(GValue));
			gtk_tree_model_get_value(model, &iter, 1, &value);
			filename = g_value_get_string(&value);
			load_pixbuf(filename);
			g_value_unset(&value);
		}

		g_list_foreach(list, (GFunc)gtk_tree_path_free, NULL);
		g_list_free(list);
	}
}

gpointer add_dir_thread(gpointer data) {
	gchar *directory;

	directory = (gchar*)data;

	add_dir_recursive(directory, 0, statusbar);

	g_free(directory);

	return NULL;
}

void on_add_dir_action_activate(GtkAction *action, gpointer user_data) {
	GtkWidget *dialog;
	GError *error;

	if(add_thread) return;

	dialog = gtk_file_chooser_dialog_new("Choose Directory", NULL, GTK_FILE_CHOOSER_ACTION_SELECT_FOLDER,
			GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT, NULL);
	if(gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT) {
		char *directory;
		directory = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER(dialog));
		add_thread = g_thread_create(add_dir_thread, strdup(directory), FALSE, &error);
		if(!add_thread) {
			g_warning("%s", error->message);
			g_error_free(error);
		}
	}
	gtk_widget_destroy(dialog);
}

int gui_main(int argc, char **argv) {
	GtkWidget *window;
	GtkWidget *foldtree;
	GtkWidget *window_hpane;
	GtkBuilder *builder ;
	GError *error = NULL;
	GdkColor color;

	g_thread_init(NULL);

	gdk_threads_init();

	if(!db_open())
		return 1;

	gtk_init(&argc, &argv);

	builder = gtk_builder_new();
	if(!gtk_builder_add_from_string(builder, ui_string, -1, &error)) {
		g_warning("%s", error->message);
		g_error_free(error);
		return 1;
	}

	window = GTK_WIDGET(gtk_builder_get_object(builder, "window"));
	gtk_window_set_title(GTK_WINDOW(window), "walls");

	foldtree = GTK_WIDGET(gtk_builder_get_object(builder, "foldtree"));
	foldtree_init(GTK_TREE_VIEW(foldtree));

	thumbview = GTK_ICON_VIEW(gtk_builder_get_object(builder, "thumbview"));
	gtk_icon_view_set_pixbuf_column(thumbview, 0);

	image = GTK_IMAGE(gtk_builder_get_object(builder, "image"));

	layout = GTK_WIDGET(gtk_builder_get_object(builder, "layout"));
	if(gdk_color_parse("#000", &color))
		gtk_widget_modify_bg(GTK_WIDGET(layout), GTK_STATE_NORMAL, &color);

	window_hpane = GTK_WIDGET(gtk_builder_get_object(builder, "window_hpane"));
	g_signal_connect(window_hpane, "notify::position", G_CALLBACK(on_window_hpane_resized), window_hpane);

	statusbar = GTK_STATUSBAR(gtk_builder_get_object(builder, "statusbar"));
	image_context = gtk_statusbar_get_context_id(GTK_STATUSBAR(statusbar), "Image display");

	gtk_builder_connect_signals(builder, NULL);
	
	g_object_unref(G_OBJECT(builder));

	gtk_widget_show_all(window);

	gtk_main();

	db_close();

	return 0;
}