utilops.c

Gqview,Linux下基于GTK+库写成的轻量级而能丰富的图像浏览程序。

/*
 * GQview
 * (C) 2004 John Ellis
 *
 * Author: John Ellis
 *
 * This software is released under the GNU General Public License (GNU GPL).
 * Please read the included file COPYING for more information.
 * This software comes with no warranty of any kind, use at your own risk!
 */


#include "gqview.h"
#include "utilops.h"


#include "cache_maint.h"
#include "collect.h"
#include "dupe.h"
#include "filelist.h"
#include "image.h"
#include "img-view.h"
#include "layout.h"
#include "search.h"
#include "ui_bookmark.h"
#include "ui_fileops.h"
#include "ui_misc.h"
#include "ui_tabcomp.h"


/*
 *--------------------------------------------------------------------------
 * call these when names change, files move, deleted, etc.
 * so that any open windows are also updated
 *--------------------------------------------------------------------------
 */

void file_maint_renamed(const gchar *source, const gchar *dest)
{
	cache_maint_moved(source, dest);
	collection_maint_renamed(source, dest);

	layout_maint_renamed(source, dest);
	view_window_maint_moved(source, dest);
	dupe_maint_renamed(source, dest);
	search_maint_renamed(source, dest);
}

/* under most cases ignore_list should be NULL */
void file_maint_removed(const gchar *path, GList *ignore_list)
{
	layout_maint_removed(path, ignore_list);
	view_window_maint_removed(path, ignore_list);
	dupe_maint_removed(path);
	search_maint_removed(path);

	collection_maint_removed(path);
	cache_maint_removed(path);
}

/* special case for correct main window behavior */
void file_maint_moved(const gchar *source, const gchar *dest, GList *ignore_list)
{
	cache_maint_moved(source, dest);
	collection_maint_renamed(source, dest);

	layout_maint_moved(source, dest, ignore_list);
	view_window_maint_moved(source, dest);
	dupe_maint_renamed(source, dest);
	search_maint_renamed(source, dest);
}

void file_maint_copied(const gchar *source, const gchar *dest)
{
	cache_maint_copied(source, dest);
}

/*
 *--------------------------------------------------------------------------
 * The file manipulation dialogs
 *--------------------------------------------------------------------------
 */


enum {
	DIALOG_NEW_DIR,
	DIALOG_COPY,
	DIALOG_MOVE,
	DIALOG_DELETE,
	DIALOG_RENAME
};

typedef struct _FileDataMult FileDataMult;
struct _FileDataMult
{
	gint confirm_all;
	gint confirmed;
	gint skip;
	GList *source_list;
	GList *source_next;
	gchar *dest_base;
	gchar *source;
	gchar *dest;
	gint copy;

	gint rename;
	gint rename_auto;
	gint rename_all;

	GtkWidget *rename_box;
	GtkWidget *rename_entry;
	GtkWidget *rename_auto_box;

	GtkWidget *yes_all_button;
};

typedef struct _FileDataSingle FileDataSingle;
struct _FileDataSingle
{
	gint confirmed;
	gchar *source;
	gchar *dest;
	gint copy;

	gint rename;
	gint rename_auto;

	GtkWidget *rename_box;
	GtkWidget *rename_entry;
	GtkWidget *rename_auto_box;
};

/*
 *--------------------------------------------------------------------------
 * Adds 1 or 2 images (if 2, side by side) to a GenericDialog
 *--------------------------------------------------------------------------
 */

#define DIALOG_DEF_IMAGE_DIM_X 200
#define DIALOG_DEF_IMAGE_DIM_Y 150

static void generic_dialog_add_image(GenericDialog *gd, const gchar *path1, const gchar *header1,
				     const gchar *path2, const gchar *header2,
				     gint show_filename)
{
	ImageWindow *imd;
	GtkWidget *hbox = NULL;
	GtkWidget *vbox;
	GtkWidget *label = NULL;

	if (path2)
		{
		hbox = pref_box_new(gd->vbox, TRUE, GTK_ORIENTATION_HORIZONTAL, PREF_PAD_SPACE);
		}

	/* image 1 */

	vbox = gtk_vbox_new(FALSE, PREF_PAD_GAP);
	if (hbox)
		{
		GtkWidget *sep;

		gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 0);

		sep = gtk_vseparator_new();
		gtk_box_pack_start(GTK_BOX(hbox), sep, FALSE, FALSE, 0);
		gtk_widget_show(sep);
		}
	else
		{
		gtk_box_pack_start(GTK_BOX(gd->vbox), vbox, TRUE, TRUE, PREF_PAD_GAP);
		}
	gtk_widget_show(vbox);

	if (header1)
		{
		GtkWidget *head;

		head = pref_label_new(vbox, header1);
		pref_label_bold(head, TRUE, FALSE);
		gtk_misc_set_alignment(GTK_MISC(head), 0.0, 0.5);
		}

	imd = image_new(FALSE);
	gtk_widget_set_size_request(imd->widget, DIALOG_DEF_IMAGE_DIM_X, DIALOG_DEF_IMAGE_DIM_Y);
	gtk_box_pack_start(GTK_BOX(vbox), imd->widget, TRUE, TRUE, 0);
	image_change_path(imd, path1, 0.0);
	gtk_widget_show(imd->widget);

	if (show_filename)
		{
		label = pref_label_new(vbox, (path1 == NULL) ? "" : filename_from_path(path1));
		}

	/* only the first image is stored (for use in gd_image_set) */
	g_object_set_data(G_OBJECT(gd->dialog), "img_image", imd);
	g_object_set_data(G_OBJECT(gd->dialog), "img_label", label);
		

	/* image 2 */

	if (hbox && path2)
		{
		vbox = pref_box_new(hbox, TRUE, GTK_ORIENTATION_VERTICAL, PREF_PAD_GAP);

		if (header2)
			{
			GtkWidget *head;

			head = pref_label_new(vbox, header2);
			pref_label_bold(head, TRUE, FALSE);
			gtk_misc_set_alignment(GTK_MISC(head), 0.0, 0.5);
			}

		imd = image_new(FALSE);
		gtk_widget_set_size_request(imd->widget, DIALOG_DEF_IMAGE_DIM_X, DIALOG_DEF_IMAGE_DIM_Y);
		gtk_box_pack_start(GTK_BOX(vbox), imd->widget, TRUE, TRUE, 0);
		image_change_path(imd, path2, 0.0);
		gtk_widget_show(imd->widget);

		pref_label_new(vbox, filename_from_path(path2));
		}
}

static void generic_dialog_image_set(GenericDialog *gd, const gchar *path)
{
	ImageWindow *imd;
	GtkWidget *label;
	
	imd = g_object_get_data(G_OBJECT(gd->dialog), "img_image");
	label = g_object_get_data(G_OBJECT(gd->dialog), "img_label");

	if (!imd) return;

	image_change_path(imd, path, 0.0);
	if (label) gtk_label_set_text(GTK_LABEL(label), filename_from_path(path));
}

/*
 *--------------------------------------------------------------------------
 * Wrappers to aid in setting additional dialog properties (unde mouse, etc.)
 *--------------------------------------------------------------------------
 */

GenericDialog *file_util_gen_dlg(const gchar *title,
				 const gchar *wmclass, const gchar *wmsubclass,
				 GtkWidget *parent, gint auto_close,
				 void (*cancel_cb)(GenericDialog *, gpointer), gpointer data)
{
	GenericDialog *gd;

	gd = generic_dialog_new(title, wmclass, wmsubclass, parent, auto_close, cancel_cb, data);
	if (place_dialogs_under_mouse)
		{
		gtk_window_set_position(GTK_WINDOW(gd->dialog), GTK_WIN_POS_MOUSE);
		}

	return gd;
}

FileDialog *file_util_file_dlg(const gchar *title,
			       const gchar *wmclass, const gchar *wmsubclass,
			       GtkWidget *parent,
			       void (*cancel_cb)(FileDialog *, gpointer), gpointer data)
{
	FileDialog *fd;

	fd = file_dialog_new(title, wmclass, wmsubclass, parent, cancel_cb, data);
	if (place_dialogs_under_mouse)
		{
		gtk_window_set_position(GTK_WINDOW(GENERIC_DIALOG(fd)->dialog), GTK_WIN_POS_MOUSE);
		}

	return fd;
}

/* this warning dialog is copied from SLIK's ui_utildg.c,
 * because it does not have a mouse center option,
 * and we must center it before show, implement it here.
 */
static void file_util_warning_dialog_ok_cb(GenericDialog *gd, gpointer data)
{
	/* no op */
}

GenericDialog *file_util_warning_dialog(const gchar *heading, const gchar *message,
					const gchar *icon_stock_id, GtkWidget *parent)
{
	GenericDialog *gd;

	gd = file_util_gen_dlg(heading, "GQview", "warning", parent, TRUE, NULL, NULL);
	generic_dialog_add_message(gd, icon_stock_id, heading, message);
	generic_dialog_add_button(gd, GTK_STOCK_OK, NULL, file_util_warning_dialog_ok_cb, TRUE);
	if (place_dialogs_under_mouse)
		{
		gtk_window_set_position(GTK_WINDOW(gd->dialog), GTK_WIN_POS_MOUSE);
		}
	gtk_widget_show(gd->dialog);

	return gd;
}

static gint filename_base_length(const gchar *name)
{
	gint n;

	if (!name) return 0;

	n = strlen(name);

	if (filter_name_exists(name))
		{
		const gchar *ext;

		ext = extension_from_path(name);
		if (ext) n -= strlen(ext);
		}

	return n;
}


/*
 *--------------------------------------------------------------------------
 * Move and Copy routines
 *--------------------------------------------------------------------------
 */

/*
 * Multi file move
 */

static FileDataMult *file_data_multiple_new(GList *source_list, const gchar *dest, gint copy)
{
	FileDataMult *fdm = g_new0(FileDataMult, 1);
	fdm->confirm_all = FALSE;
	fdm->confirmed = FALSE;
	fdm->skip = FALSE;
	fdm->source_list = source_list;
	fdm->source_next = fdm->source_list;
	fdm->dest_base = g_strdup(dest);
	fdm->source = NULL;
	fdm->dest = NULL;
	fdm->copy = copy;
	return fdm;
}

static void file_data_multiple_free(FileDataMult *fdm)
{
	path_list_free(fdm->source_list);
	g_free(fdm->dest_base);
	g_free(fdm->dest);
	g_free(fdm);
}

static void file_util_move_multiple(FileDataMult *fdm);

static void file_util_move_multiple_ok_cb(GenericDialog *gd, gpointer data)
{
	FileDataMult *fdm = data;

	fdm->confirmed = TRUE;

	if (fdm->rename_auto)
		{
		gchar *buf;

		buf = unique_filename_simple(fdm->dest);
		if (buf)
			{
			g_free(fdm->dest);
			fdm->dest = buf;
			}
		else
			{
			/* unique failed? well, return to the overwrite prompt :( */
			fdm->confirmed = FALSE;
			}
		}
	else if (fdm->rename)
		{
		const gchar *name;

		name = gtk_entry_get_text(GTK_ENTRY(fdm->rename_entry));
		if (strlen(name) == 0 ||
		    strcmp(name, filename_from_path(fdm->source)) == 0)
			{
			fdm->confirmed = FALSE;
			}
		else
			{
			g_free(fdm->dest);
			fdm->dest = concat_dir_and_file(fdm->dest_base, name);
			fdm->confirmed = !isname(fdm->dest);
			}
		}

	file_util_move_multiple(fdm);
}

static void file_util_move_multiple_all_cb(GenericDialog *gd, gpointer data)
{
	FileDataMult *fdm = data;

	fdm->confirm_all = TRUE;

	if (fdm->rename_auto) fdm->rename_all = TRUE;

	file_util_move_multiple(fdm);
}

static void file_util_move_multiple_skip_cb(GenericDialog *gd, gpointer data)
{
	FileDataMult *fdm = data;

	fdm->skip = TRUE;
	fdm->confirmed = TRUE;

	file_util_move_multiple(fdm);
}

static void file_util_move_multiple_skip_all_cb(GenericDialog *gd, gpointer data)
{
	FileDataMult *fdm = data;

	fdm->skip = TRUE;
	fdm->confirm_all = TRUE;
	file_util_move_multiple(fdm);
}

static void file_util_move_multiple_continue_cb(GenericDialog *gd, gpointer data)
{
	FileDataMult *fdm = data;

	fdm->confirmed = TRUE;
	file_util_move_multiple(fdm);
}

static void file_util_move_multiple_cancel_cb(GenericDialog *gd, gpointer data)
{
	FileDataMult *fdm = data;

	file_data_multiple_free(fdm);
}

/* rename option */

static void file_util_move_multiple_rename_auto_cb(GtkWidget *widget, gpointer data)
{
	GenericDialog *gd = data;
	FileDataMult *fdm;

	fdm = gd->data;

	fdm->rename_auto = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
	gtk_widget_set_sensitive(fdm->rename_box, !fdm->rename_auto);
	gtk_widget_set_sensitive(fdm->rename_entry, (!fdm->rename_auto && fdm->rename));

	if (fdm->rename_auto)
		{
		gchar *preview;

		preview = unique_filename_simple(fdm->dest);
		if (preview) gtk_entry_set_text(GTK_ENTRY(fdm->rename_entry), filename_from_path(preview));
		g_free(preview);
		}

	gtk_widget_set_sensitive(fdm->yes_all_button, (fdm->rename_auto || !fdm->rename));
}

static void file_util_move_multiple_rename_cb(GtkWidget *widget, gpointer data)
{
	GenericDialog *gd = data;
	FileDataMult *fdm;

	fdm = gd->data;

	fdm->rename = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(widget));
	gtk_widget_set_sensitive(fdm->rename_entry, fdm->rename);
	gtk_widget_set_sensitive(fdm->yes_all_button, !fdm->rename);

	if (fdm->rename)
		{
		const gchar *name;

		gtk_widget_grab_focus(fdm->rename_entry);

		name = gtk_entry_get_text(GTK_ENTRY(fdm->rename_entry));
		gtk_editable_select_region(GTK_EDITABLE(fdm->rename_entry), 0, filename_base_length(name));
		}
}

static GenericDialog *file_util_move_multiple_confirm_dialog(FileDataMult *fdm)
{
	GenericDialog *gd;
	GtkWidget *hbox;

	gd = file_util_gen_dlg(_("Overwrite file"), "GQview", "dlg_confirm",
				NULL, TRUE,
				file_util_move_multiple_cancel_cb, fdm);