tools.c

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/*
 *      tools.c - this file is part of Geany, a fast and lightweight IDE
 *
 *      Copyright 2006 The Geany contributors
 *
 *      This program is free software; you can redistribute it and/or modify
 *      it under the terms of the GNU General Public License as published by
 *      the Free Software Foundation; either version 2 of the License, or
 *      (at your option) any later version.
 *
 *      This program is distributed in the hope that it will be useful,
 *      but WITHOUT ANY WARRANTY; without even the implied warranty of
 *      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *      GNU General Public License for more details.
 *
 *      You should have received a copy of the GNU General Public License along
 *      with this program; if not, write to the Free Software Foundation, Inc.,
 *      51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
 
/*
 * Miscellaneous code for the built-in Tools menu items, and custom command code.
 * For Plugins code see plugins.c.
 */
 
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
 
#include "tools.h"
 
#include "document.h"
#include "keybindings.h"
#include "sciwrappers.h"
#include "spawn.h"
#include "support.h"
#include "ui_utils.h"
#include "utils.h"
#include "win32.h"
 
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <gtk/gtk.h>
 
 
enum
{
    CC_COLUMN_ID,
    CC_COLUMN_STATUS,
    CC_COLUMN_TOOLTIP,
    CC_COLUMN_CMD,
    CC_COLUMN_LABEL,
    CC_COLUMN_COUNT
};
 
/* custom commands code*/
struct cc_dialog
{
    guint count;
    GtkWidget *view;
    GtkTreeViewColumn *edit_column;
    GtkListStore *store;
    GtkTreeSelection *selection;
    GtkWidget *button_add;
    GtkWidget *button_remove;
    GtkWidget *button_up;
    GtkWidget *button_down;
};
 
 
/* update STATUS and TOOLTIP columns according to cmd */
static void cc_dialog_update_row_status(GtkListStore *store, GtkTreeIter *iter, const gchar *cmd)
{
    GError *err = NULL;
    const gchar *stock_id = GTK_STOCK_NO;
    gchar *tooltip = NULL;
 
    if (EMPTY(cmd) || spawn_check_command(cmd, TRUE, &err))
        stock_id = GTK_STOCK_YES;
    else
    {
        tooltip = g_strdup_printf(_("Invalid command: %s"), err->message);
        g_error_free(err);
    }
 
    gtk_list_store_set(store, iter, CC_COLUMN_STATUS, stock_id, CC_COLUMN_TOOLTIP, tooltip, -1);
    g_free(tooltip);
}
 
 
/* adds a new row for custom command @p idx, or an new empty one if < 0 */
static void cc_dialog_add_command(struct cc_dialog *cc, gint idx, gboolean start_editing)
{
    GtkTreeIter iter;
    const gchar *cmd = NULL;
    const gchar *label = NULL;
    guint id = cc->count;
 
    if (idx >= 0)
    {
        cmd = ui_prefs.custom_commands[idx];
        label = ui_prefs.custom_commands_labels[idx];
    }
 
    cc->count++;
    gtk_list_store_append(cc->store, &iter);
    gtk_list_store_set(cc->store, &iter, CC_COLUMN_ID, id, CC_COLUMN_CMD, cmd, CC_COLUMN_LABEL, label, -1);
    cc_dialog_update_row_status(cc->store, &iter, cmd);
 
    if (start_editing)
    {
        GtkTreePath *path;
 
        gtk_widget_grab_focus(cc->view);
        path = gtk_tree_model_get_path(GTK_TREE_MODEL(cc->store), &iter);
        gtk_tree_view_set_cursor(GTK_TREE_VIEW(cc->view), path, cc->edit_column, TRUE);
        gtk_tree_path_free(path);
    }
}
 
 
static void cc_on_dialog_add_clicked(GtkButton *button, struct cc_dialog *cc)
{
    cc_dialog_add_command(cc, -1, TRUE);
}
 
 
static void scroll_to_cursor(GtkTreeView *view)
{
    GtkTreePath *path;
    GtkTreeViewColumn *column;
 
    gtk_tree_view_get_cursor(view, &path, &column);
    if (path)
    {
        gtk_tree_view_scroll_to_cell(view, path, column, FALSE, 1.0, 1.0);
        gtk_tree_path_free(path);
    }
}
 
static void cc_on_dialog_remove_clicked(GtkButton *button, struct cc_dialog *cc)
{
    GtkTreeIter iter;
 
    if (gtk_tree_selection_get_selected(cc->selection, NULL, &iter))
    {
        gtk_list_store_remove(cc->store, &iter);
        scroll_to_cursor(GTK_TREE_VIEW(cc->view));
    }
}
 
 
static void cc_on_dialog_move_up_clicked(GtkButton *button, struct cc_dialog *cc)
{
    GtkTreeIter iter;
 
    if (gtk_tree_selection_get_selected(cc->selection, NULL, &iter))
    {
        GtkTreePath *path;
        GtkTreeIter prev;
 
        path = gtk_tree_model_get_path(GTK_TREE_MODEL(cc->store), &iter);
        if (gtk_tree_path_prev(path) &&
            gtk_tree_model_get_iter(GTK_TREE_MODEL(cc->store), &prev, path))
        {
            gtk_list_store_move_before(cc->store, &iter, &prev);
            scroll_to_cursor(GTK_TREE_VIEW(cc->view));
        }
        gtk_tree_path_free(path);
    }
}
 
 
static void cc_on_dialog_move_down_clicked(GtkButton *button, struct cc_dialog *cc)
{
    GtkTreeIter iter;
 
    if (gtk_tree_selection_get_selected(cc->selection, NULL, &iter))
    {
        GtkTreeIter next = iter;
 
        if (gtk_tree_model_iter_next(GTK_TREE_MODEL(cc->store), &next))
        {
            gtk_list_store_move_after(cc->store, &iter, &next);
            scroll_to_cursor(GTK_TREE_VIEW(cc->view));
        }
    }
}
 
 
/* Executes command (which should include all necessary command line args) and passes the current
 * selection through the standard input of command. The whole output of command replaces the
 * current selection. */
void tools_execute_custom_command(GeanyDocument *doc, const gchar *command)
{
    GError *error = NULL;
    gchar *sel;
    SpawnWriteData input;
    GString *output;
    GString *errors;
    gint status;
 
    g_return_if_fail(doc != NULL && command != NULL);
 
    if (! sci_has_selection(doc->editor->sci))
        editor_select_lines(doc->editor, FALSE);
 
    sel = sci_get_selection_contents(doc->editor->sci);
    input.ptr = sel;
    input.size = strlen(sel);
    output = g_string_sized_new(256);
    errors = g_string_new(NULL);
    ui_set_statusbar(TRUE, _("Passing data and executing custom command: %s"), command);
 
    if (spawn_sync(NULL, command, NULL, NULL, &input, output, errors, &status, &error))
    {
        if (errors->len > 0)
        {
            g_warning("%s: %s\n", command, errors->str);
            ui_set_statusbar(TRUE,
                _("The executed custom command returned an error. "
                "Your selection was not changed. Error message: %s"),
                errors->str);
        }
        else if (!SPAWN_WIFEXITED(status) || SPAWN_WEXITSTATUS(status) != EXIT_SUCCESS)
        {
            /* TODO maybe include the exit code in the error message */
            ui_set_statusbar(TRUE,
                _("The executed custom command exited with an unsuccessful exit code."));
        }
        else
        {   /* Command completed successfully */
            sci_replace_sel(doc->editor->sci, output->str);
        }
    }
    else
    {
        ui_set_statusbar(TRUE, _("Cannot execute custom command \"%s\": %s. "
            "Check the path setting in Custom Commands."), command, error->message);
        g_error_free(error);
    }
 
    g_string_free(output, TRUE);
    g_string_free(errors, TRUE);
    g_free(sel);
}
 
 
static void cc_dialog_on_command_edited(GtkCellRendererText *renderer, gchar *path, gchar *text,
        struct cc_dialog *cc)
{
    GtkTreeIter iter;
 
    gtk_tree_model_get_iter_from_string(GTK_TREE_MODEL(cc->store), &iter, path);
    gtk_list_store_set(cc->store, &iter, CC_COLUMN_CMD, text, -1);
    cc_dialog_update_row_status(cc->store, &iter, text);
}
 
 
static void cc_dialog_on_label_edited(GtkCellRendererText *renderer, gchar *path, gchar *text,
        struct cc_dialog *cc)
{
    GtkTreeIter iter;
 
    gtk_tree_model_get_iter_from_string(GTK_TREE_MODEL(cc->store), &iter, path);
    gtk_list_store_set(cc->store, &iter, CC_COLUMN_LABEL, text, -1);
}
 
 
/* re-compute IDs to reflect the current store state */
static void cc_dialog_update_ids(struct cc_dialog *cc)
{
    GtkTreeIter iter;
 
    cc->count = 1;
    if (! gtk_tree_model_get_iter_first(GTK_TREE_MODEL(cc->store), &iter))
        return;
 
    do
    {
        gtk_list_store_set(cc->store, &iter, CC_COLUMN_ID, cc->count, -1);
        cc->count++;
    }
    while (gtk_tree_model_iter_next(GTK_TREE_MODEL(cc->store), &iter));
}
 
 
/* update sensitiveness of the buttons according to the selection */
static void cc_dialog_update_sensitive(struct cc_dialog *cc)
{
    GtkTreeIter iter;
    gboolean has_selection = FALSE;
    gboolean first_selected = FALSE;
    gboolean last_selected = FALSE;
 
    if ((has_selection = gtk_tree_selection_get_selected(cc->selection, NULL, &iter)))
    {
        GtkTreePath *path;
        GtkTreePath *copy;
 
        path = gtk_tree_model_get_path(GTK_TREE_MODEL(cc->store), &iter);
        copy = gtk_tree_path_copy(path);
        first_selected = ! gtk_tree_path_prev(copy);
        gtk_tree_path_free(copy);
        gtk_tree_path_next(path);
        last_selected = ! gtk_tree_model_get_iter(GTK_TREE_MODEL(cc->store), &iter, path);
        gtk_tree_path_free(path);
    }
 
    gtk_widget_set_sensitive(cc->button_remove, has_selection);
    gtk_widget_set_sensitive(cc->button_up, has_selection && ! first_selected);
    gtk_widget_set_sensitive(cc->button_down, has_selection && ! last_selected);
}
 
 
static void cc_dialog_on_tree_selection_changed(GtkTreeSelection *selection, struct cc_dialog *cc)
{
    cc_dialog_update_sensitive(cc);
}
 
 
static void cc_dialog_on_row_inserted(GtkTreeModel *model, GtkTreePath  *path, GtkTreeIter *iter,
        struct cc_dialog *cc)
{
    cc_dialog_update_ids(cc);
    cc_dialog_update_sensitive(cc);
}
 
 
static void cc_dialog_on_row_deleted(GtkTreeModel *model, GtkTreePath  *path, struct cc_dialog *cc)
{
    cc_dialog_update_ids(cc);
    cc_dialog_update_sensitive(cc);
}
 
 
static void cc_dialog_on_rows_reordered(GtkTreeModel *model, GtkTreePath  *path, GtkTreeIter *iter,
        gpointer new_order, struct cc_dialog *cc)
{
    cc_dialog_update_ids(cc);
    cc_dialog_update_sensitive(cc);
}
 
 
static void cc_show_dialog_custom_commands(void)
{
    GtkWidget *dialog, *label, *vbox, *scroll, *buttonbox;
    GtkCellRenderer *renderer;
    GtkTreeViewColumn *column;
    guint i;
    struct cc_dialog cc;
 
    dialog = gtk_dialog_new_with_buttons(_("Set Custom Commands"), GTK_WINDOW(main_widgets.window),
                        GTK_DIALOG_DESTROY_WITH_PARENT, GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
                        GTK_STOCK_OK, GTK_RESPONSE_ACCEPT, NULL);
    gtk_window_set_default_size(GTK_WINDOW(dialog), 300, 300); /* give a reasonable minimal default size */
    vbox = ui_dialog_vbox_new(GTK_DIALOG(dialog));
    gtk_box_set_spacing(GTK_BOX(vbox), 6);
    gtk_widget_set_name(dialog, "GeanyDialog");
 
    label = gtk_label_new(_("You can send the current selection to any of these commands and the output of the command replaces the current selection."));
    gtk_label_set_line_wrap(GTK_LABEL(label), TRUE);
    gtk_misc_set_alignment(GTK_MISC(label), 0, 0.5);
    gtk_box_pack_start(GTK_BOX(vbox), label, FALSE, FALSE, 0);
 
    cc.count = 1;
    cc.store = gtk_list_store_new(CC_COLUMN_COUNT, G_TYPE_UINT, G_TYPE_STRING, G_TYPE_STRING,
            G_TYPE_STRING, G_TYPE_STRING);
    cc.view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(cc.store));
    ui_tree_view_set_tooltip_text_column(GTK_TREE_VIEW(cc.view), CC_COLUMN_TOOLTIP);
    gtk_tree_view_set_reorderable(GTK_TREE_VIEW(cc.view), TRUE);
    cc.selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cc.view));
    /* ID column */
    renderer = gtk_cell_renderer_text_new();
    column = gtk_tree_view_column_new_with_attributes(_("ID"), renderer, "text", CC_COLUMN_ID, NULL);
    gtk_tree_view_append_column(GTK_TREE_VIEW(cc.view), column);
    /* command column, holding status and command display */
    column = g_object_new(GTK_TYPE_TREE_VIEW_COLUMN, "title", _("Command"), "expand", TRUE, "resizable", TRUE, NULL);
    renderer = gtk_cell_renderer_pixbuf_new();
    gtk_tree_view_column_pack_start(column, renderer, FALSE);
    gtk_tree_view_column_set_attributes(column, renderer, "stock-id", CC_COLUMN_STATUS, NULL);
    renderer = gtk_cell_renderer_text_new();
    g_object_set(renderer, "editable", TRUE, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
    g_signal_connect(renderer, "edited", G_CALLBACK(cc_dialog_on_command_edited), &cc);
    gtk_tree_view_column_pack_start(column, renderer, TRUE);
    gtk_tree_view_column_set_attributes(column, renderer, "text", CC_COLUMN_CMD, NULL);
    cc.edit_column = column;
    gtk_tree_view_append_column(GTK_TREE_VIEW(cc.view), column);
    /* label column */
    renderer = gtk_cell_renderer_text_new();
    g_object_set(renderer, "editable", TRUE, "ellipsize", PANGO_ELLIPSIZE_END, NULL);
    g_signal_connect(renderer, "edited", G_CALLBACK(cc_dialog_on_label_edited), &cc);
    column = gtk_tree_view_column_new_with_attributes(_("Label"), renderer, "text", CC_COLUMN_LABEL, NULL);
    g_object_set(column, "expand", TRUE, "resizable", TRUE, NULL);
    gtk_tree_view_append_column(GTK_TREE_VIEW(cc.view), column);
 
    scroll = gtk_scrolled_window_new(NULL, NULL);
    gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scroll), GTK_POLICY_AUTOMATIC,
            GTK_POLICY_AUTOMATIC);
    gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(scroll), GTK_SHADOW_IN);
    gtk_container_add(GTK_CONTAINER(scroll), cc.view);
    gtk_box_pack_start(GTK_BOX(vbox), scroll, TRUE, TRUE, 0);
 
    if (ui_prefs.custom_commands != NULL)
    {
        GtkTreeIter iter;
        guint len = g_strv_length(ui_prefs.custom_commands);
 
        for (i = 0; i < len; i++)
        {
            if (EMPTY(ui_prefs.custom_commands[i]))
                continue; /* skip empty fields */
 
            cc_dialog_add_command(&cc, i, FALSE);
        }
 
        /* focus the first row if any */
        if (gtk_tree_model_get_iter_first(GTK_TREE_MODEL(cc.store), &iter))
        {
            GtkTreePath *path = gtk_tree_model_get_path(GTK_TREE_MODEL(cc.store), &iter);
 
            gtk_tree_view_set_cursor(GTK_TREE_VIEW(cc.view), path, cc.edit_column, FALSE);
            gtk_tree_path_free(path);
        }
    }
 
    buttonbox = gtk_button_box_new(GTK_ORIENTATION_HORIZONTAL);
    gtk_box_set_spacing(GTK_BOX(buttonbox), 6);
    gtk_box_pack_start(GTK_BOX(vbox), buttonbox, FALSE, FALSE, 0);
    cc.button_add = gtk_button_new_from_stock(GTK_STOCK_ADD);
    g_signal_connect(cc.button_add, "clicked", G_CALLBACK(cc_on_dialog_add_clicked), &cc);
    gtk_container_add(GTK_CONTAINER(buttonbox), cc.button_add);
    cc.button_remove = gtk_button_new_from_stock(GTK_STOCK_REMOVE);
    g_signal_connect(cc.button_remove, "clicked", G_CALLBACK(cc_on_dialog_remove_clicked), &cc);
    gtk_container_add(GTK_CONTAINER(buttonbox), cc.button_remove);
    cc.button_up = gtk_button_new_from_stock(GTK_STOCK_GO_UP);
    g_signal_connect(cc.button_up, "clicked", G_CALLBACK(cc_on_dialog_move_up_clicked), &cc);
    gtk_container_add(GTK_CONTAINER(buttonbox), cc.button_up);
    cc.button_down = gtk_button_new_from_stock(GTK_STOCK_GO_DOWN);
    g_signal_connect(cc.button_down, "clicked", G_CALLBACK(cc_on_dialog_move_down_clicked), &cc);
    gtk_container_add(GTK_CONTAINER(buttonbox), cc.button_down);
 
    cc_dialog_update_sensitive(&cc);
 
    /* only connect the selection signal when all other cc_dialog fields are set */
    g_signal_connect(cc.selection, "changed", G_CALLBACK(cc_dialog_on_tree_selection_changed), &cc);
    g_signal_connect(cc.store, "row-inserted", G_CALLBACK(cc_dialog_on_row_inserted), &cc);
    g_signal_connect(cc.store, "row-deleted", G_CALLBACK(cc_dialog_on_row_deleted), &cc);
    g_signal_connect(cc.store, "rows-reordered", G_CALLBACK(cc_dialog_on_rows_reordered), &cc);
 
    gtk_widget_show_all(vbox);
 
    if (gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT)
    {
        GSList *cmd_list = NULL;
        GSList *lbl_list = NULL;
        gint len = 0;
        gchar **commands = NULL;
        gchar **labels = NULL;
        GtkTreeIter iter;
 
        if (gtk_tree_model_get_iter_first(GTK_TREE_MODEL(cc.store), &iter))
        {
            do
            {
                gchar *cmd;
                gchar *lbl;
 
                gtk_tree_model_get(GTK_TREE_MODEL(cc.store), &iter, CC_COLUMN_CMD, &cmd, CC_COLUMN_LABEL, &lbl, -1);
                if (!EMPTY(cmd))
                {
                    cmd_list = g_slist_prepend(cmd_list, cmd);
                    lbl_list = g_slist_prepend(lbl_list, lbl);
                    len++;
                }
                else
                {
                    g_free(cmd);
                    g_free(lbl);
                }
            }
            while (gtk_tree_model_iter_next(GTK_TREE_MODEL(cc.store), &iter));
        }
        cmd_list = g_slist_reverse(cmd_list);
        lbl_list = g_slist_reverse(lbl_list);
        /* create a new null-terminated array but only if there is any commands defined */
        if (len > 0)
        {
            gint j = 0;
            GSList *cmd_node, *lbl_node;
 
            commands = g_new(gchar*, len + 1);
            labels = g_new(gchar*, len + 1);
            /* walk commands and labels lists */
            for (cmd_node = cmd_list, lbl_node = lbl_list; cmd_node != NULL; cmd_node = cmd_node->next, lbl_node = lbl_node->next)
            {
                commands[j] = (gchar*) cmd_node->data;
                labels[j] = (gchar*) lbl_node->data;
                j++;
            }
            /* null-terminate the arrays */
            commands[j] = NULL;
            labels[j] = NULL;
        }
        /* set the new arrays */
        g_strfreev(ui_prefs.custom_commands);
        ui_prefs.custom_commands = commands;
        g_strfreev(ui_prefs.custom_commands_labels);
        ui_prefs.custom_commands_labels = labels;
        /* rebuild the menu items */
        tools_create_insert_custom_command_menu_items();
 
        g_slist_free(cmd_list);
        g_slist_free(lbl_list);
    }
    gtk_widget_destroy(dialog);
}
 
 
static void cc_on_custom_command_activate(GtkMenuItem *menuitem, gpointer user_data)
{
    GeanyDocument *doc = document_get_current();
    gint command_idx;
 
    g_return_if_fail(DOC_VALID(doc));
 
    command_idx = GPOINTER_TO_INT(user_data);
 
    if (ui_prefs.custom_commands == NULL ||
        command_idx < 0 || command_idx > (gint) g_strv_length(ui_prefs.custom_commands))
    {
        cc_show_dialog_custom_commands();
        return;
    }
 
    /* send it through the command and when the command returned the output the current selection
     * will be replaced */
    tools_execute_custom_command(doc, ui_prefs.custom_commands[command_idx]);
}
 
 
static void cc_insert_custom_command_items(GtkMenu *me, const gchar *label, const gchar *tooltip, gint idx)
{
    GtkWidget *item;
    gint key_idx = -1;
 
    switch (idx)
    {
        case 0: key_idx = GEANY_KEYS_FORMAT_SENDTOCMD1; break;
        case 1: key_idx = GEANY_KEYS_FORMAT_SENDTOCMD2; break;
        case 2: key_idx = GEANY_KEYS_FORMAT_SENDTOCMD3; break;
        case 3: key_idx = GEANY_KEYS_FORMAT_SENDTOCMD4; break;
        case 4: key_idx = GEANY_KEYS_FORMAT_SENDTOCMD5; break;
        case 5: key_idx = GEANY_KEYS_FORMAT_SENDTOCMD6; break;
        case 6: key_idx = GEANY_KEYS_FORMAT_SENDTOCMD7; break;
        case 7: key_idx = GEANY_KEYS_FORMAT_SENDTOCMD8; break;
        case 8: key_idx = GEANY_KEYS_FORMAT_SENDTOCMD9; break;
    }
 
    item = gtk_menu_item_new_with_label(label);
    gtk_widget_set_tooltip_text(item, tooltip);
    if (key_idx != -1)
    {
        GeanyKeyBinding *kb = keybindings_lookup_item(GEANY_KEY_GROUP_FORMAT, key_idx);
 
        if (kb->key > 0)
        {
            gtk_widget_add_accelerator(item, "activate", gtk_accel_group_new(),
                kb->key, kb->mods, GTK_ACCEL_VISIBLE);
        }
    }
    gtk_container_add(GTK_CONTAINER(me), item);
    gtk_widget_show(item);
    g_signal_connect(item, "activate", G_CALLBACK(cc_on_custom_command_activate),
        GINT_TO_POINTER(idx));
}
 
 
void tools_create_insert_custom_command_menu_items(void)
{
    GtkMenu *menu_edit = GTK_MENU(ui_lookup_widget(main_widgets.window, "send_selection_to2_menu"));
    GtkWidget *item;
    GList *me_children, *node;
 
    /* first clean the menus to be able to rebuild them */
    me_children = gtk_container_get_children(GTK_CONTAINER(menu_edit));
    foreach_list(node, me_children)
        gtk_widget_destroy(GTK_WIDGET(node->data));
    g_list_free(me_children);
 
    if (ui_prefs.custom_commands == NULL || g_strv_length(ui_prefs.custom_commands) == 0)
    {
        item = gtk_menu_item_new_with_label(_("No custom commands defined."));
        gtk_container_add(GTK_CONTAINER(menu_edit), item);
        gtk_widget_set_sensitive(item, FALSE);
        gtk_widget_show(item);
    }
    else
    {
        guint i, len;
        gint idx = 0;
        len = g_strv_length(ui_prefs.custom_commands);
        for (i = 0; i < len; i++)
        {
            const gchar *label = ui_prefs.custom_commands_labels[i];
 
            if (EMPTY(label))
                label = ui_prefs.custom_commands[i];
            if (!EMPTY(label)) /* skip empty items */
            {
                cc_insert_custom_command_items(menu_edit, label, ui_prefs.custom_commands[i], idx);
                idx++;
            }
        }
    }
 
    /* separator and Set menu item */
    item = gtk_separator_menu_item_new();
    gtk_container_add(GTK_CONTAINER(menu_edit), item);
    gtk_widget_show(item);
 
    cc_insert_custom_command_items(menu_edit, _("Set Custom Commands"), NULL, -1);
}
 
 
/* (stolen from bluefish, thanks)
 * Returns number of characters, lines and words in the supplied gchar*.
 * Handles UTF-8 correctly. Input must be properly encoded UTF-8.
 * Words are defined as any characters grouped, separated with spaces. */
static void word_count(gchar *text, guint *chars, guint *lines, guint *words)
{
    guint in_word = 0;
    gunichar utext;
 
    if (! text)
        return; /* politely refuse to operate on NULL */
 
    *chars = *words = *lines = 0;
    while (*text != '\0')
    {
        (*chars)++;
 
        switch (*text)
        {
            case '\n':
                (*lines)++;
                /* fall through */
            case '\r':
            case '\f':
            case '\t':
            case ' ':
            case '\v':
                mb_word_separator:
                if (in_word)
                {
                    in_word = 0;
                    (*words)++;
                }
                break;
            default:
                utext = g_utf8_get_char_validated(text, 2); /* This might be an utf-8 char */
                if (g_unichar_isspace(utext)) /* Unicode encoded space? */
                    goto mb_word_separator;
                if (g_unichar_isgraph(utext)) /* Is this something printable? */
                    in_word = 1;
                break;
        }
        /* Even if the current char is 2 bytes, this will iterate correctly. */
        text = g_utf8_next_char(text);
    }
 
    /* Capture last word, if there's no whitespace at the end of the file. */
    if (in_word)
        (*words)++;
    /* We start counting line numbers from 1 */
    if (*chars > 0)
        (*lines)++;
}
 
 
void tools_word_count(void)
{
    GtkWidget *dialog, *label, *vbox, *table;
    GeanyDocument *doc;
    guint chars = 0, lines = 0, words = 0;
    gchar *text;
    const gchar *range;
 
    doc = document_get_current();
    g_return_if_fail(doc != NULL);
 
    dialog = gtk_dialog_new_with_buttons(_("Word Count"), GTK_WINDOW(main_widgets.window),
                                         GTK_DIALOG_DESTROY_WITH_PARENT,
                                         GTK_STOCK_CLOSE, GTK_RESPONSE_CANCEL, NULL);
    vbox = ui_dialog_vbox_new(GTK_DIALOG(dialog));
    gtk_widget_set_name(dialog, "GeanyDialog");
 
    if (sci_has_selection(doc->editor->sci))
    {
        text = sci_get_selection_contents(doc->editor->sci);
        range = _("selection");
    }
    else
    {
        text = sci_get_contents(doc->editor->sci, -1);
        range = _("whole document");
    }
    word_count(text, &chars, &lines, &words);
    g_free(text);
 
    table = gtk_table_new(4, 2, FALSE);
    gtk_table_set_row_spacings(GTK_TABLE(table), 5);
    gtk_table_set_col_spacings(GTK_TABLE(table), 10);
 
    label = gtk_label_new(_("Range:"));
    gtk_table_attach(GTK_TABLE(table), label, 0, 1, 0, 1,
                    (GtkAttachOptions) (GTK_FILL),
                    (GtkAttachOptions) (0), 0, 0);
    gtk_misc_set_alignment(GTK_MISC(label), 1, 0);
 
    label = gtk_label_new(range);
    gtk_table_attach(GTK_TABLE(table), label, 1, 2, 0, 1,
                    (GtkAttachOptions) (GTK_FILL),
                    (GtkAttachOptions) (0), 20, 0);
    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
 
    label = gtk_label_new(_("Lines:"));
    gtk_table_attach(GTK_TABLE(table), label, 0, 1, 1, 2,
                    (GtkAttachOptions) (GTK_FILL),
                    (GtkAttachOptions) (0), 0, 0);
    gtk_misc_set_alignment(GTK_MISC(label), 1, 0);
 
    text = g_strdup_printf("%d", lines);
    label = gtk_label_new(text);
    gtk_table_attach(GTK_TABLE(table), label, 1, 2, 1, 2,
                    (GtkAttachOptions) (GTK_FILL),
                    (GtkAttachOptions) (0), 20, 0);
    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
    g_free(text);
 
    label = gtk_label_new(_("Words:"));
    gtk_table_attach(GTK_TABLE(table), label, 0, 1, 2, 3,
                    (GtkAttachOptions) (GTK_FILL),
                    (GtkAttachOptions) (0), 0, 0);
    gtk_misc_set_alignment(GTK_MISC(label), 1, 0);
 
    text = g_strdup_printf("%d", words);
    label = gtk_label_new(text);
    gtk_table_attach(GTK_TABLE(table), label, 1, 2, 2, 3,
                    (GtkAttachOptions) (GTK_FILL),
                    (GtkAttachOptions) (0), 20, 0);
    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
    g_free(text);
 
    label = gtk_label_new(_("Characters:"));
    gtk_table_attach(GTK_TABLE(table), label, 0, 1, 3, 4,
                    (GtkAttachOptions) (GTK_FILL),
                    (GtkAttachOptions) (0), 0, 0);
    gtk_misc_set_alignment(GTK_MISC(label), 1, 0);
 
    text = g_strdup_printf("%d", chars);
    label = gtk_label_new(text);
    gtk_table_attach(GTK_TABLE(table), label, 1, 2, 3, 4,
                    (GtkAttachOptions) (GTK_FILL),
                    (GtkAttachOptions) (0), 20, 0);
    gtk_misc_set_alignment(GTK_MISC(label), 0, 0);
    g_free(text);
 
    gtk_container_add(GTK_CONTAINER(vbox), table);
 
    g_signal_connect(dialog, "response", G_CALLBACK(gtk_widget_destroy), dialog);
    g_signal_connect(dialog, "delete-event", G_CALLBACK(gtk_widget_destroy), dialog);
 
    gtk_widget_show_all(dialog);
}
 
 
/*
 * color dialog callbacks
 */
static void on_color_dialog_response(GtkDialog *dialog, gint response, gpointer user_data)
{
    switch (response)
    {
        case GTK_RESPONSE_OK:
            gtk_widget_hide(ui_widgets.open_colorsel);
            /* fall through */
        case GTK_RESPONSE_APPLY:
        {
            GdkColor color;
            GeanyDocument *doc = document_get_current();
            gchar *hex;
            GtkWidget *colorsel;
 
            g_return_if_fail(doc != NULL);
 
            colorsel = gtk_color_selection_dialog_get_color_selection(GTK_COLOR_SELECTION_DIALOG(ui_widgets.open_colorsel));
            gtk_color_selection_get_current_color(GTK_COLOR_SELECTION(colorsel), &color);
 
            hex = utils_get_hex_from_color(&color);
            editor_insert_color(doc->editor, hex);
            g_free(hex);
            break;
        }
 
        default:
            gtk_widget_hide(ui_widgets.open_colorsel);
    }
}
 
 
static void on_color_selection_change_palette_with_screen(GdkScreen *screen, const GdkColor *colors, gint n_colors)
{
    GtkSettings *settings;
 
    /* Get the updated palette */
    g_free(ui_prefs.color_picker_palette);
    ui_prefs.color_picker_palette = gtk_color_selection_palette_to_string(colors, n_colors);
 
    /* Update the gtk-color-palette setting so all GtkColorSelection widgets will be modified */
    settings = gtk_settings_get_for_screen(screen);
    g_object_set(G_OBJECT(settings), "gtk-color-palette", ui_prefs.color_picker_palette, NULL);
}
 
 
/* This shows the color selection dialog to choose a color. */
void tools_color_chooser(const gchar *color)
{
    GdkColor gc;
    GtkWidget *colorsel;
 
#ifdef G_OS_WIN32
    if (interface_prefs.use_native_windows_dialogs)
    {
        win32_show_color_dialog(color);
        return;
    }
#endif
 
    if (ui_widgets.open_colorsel == NULL)
    {
        ui_widgets.open_colorsel = gtk_color_selection_dialog_new(_("Color Chooser"));
        gtk_dialog_add_button(GTK_DIALOG(ui_widgets.open_colorsel), GTK_STOCK_APPLY, GTK_RESPONSE_APPLY);
        ui_dialog_set_primary_button_order(GTK_DIALOG(ui_widgets.open_colorsel),
                GTK_RESPONSE_APPLY, GTK_RESPONSE_CANCEL, GTK_RESPONSE_OK, -1);
        gtk_widget_set_name(ui_widgets.open_colorsel, "GeanyDialog");
        gtk_window_set_transient_for(GTK_WINDOW(ui_widgets.open_colorsel), GTK_WINDOW(main_widgets.window));
        colorsel = gtk_color_selection_dialog_get_color_selection(GTK_COLOR_SELECTION_DIALOG(ui_widgets.open_colorsel));
        gtk_color_selection_set_has_palette(GTK_COLOR_SELECTION(colorsel), TRUE);
        gtk_color_selection_set_change_palette_with_screen_hook(on_color_selection_change_palette_with_screen);
 
        g_signal_connect(ui_widgets.open_colorsel, "response",
                        G_CALLBACK(on_color_dialog_response), NULL);
        g_signal_connect(ui_widgets.open_colorsel, "delete-event",
                        G_CALLBACK(gtk_widget_hide_on_delete), NULL);
    }
    else
        colorsel = gtk_color_selection_dialog_get_color_selection(GTK_COLOR_SELECTION_DIALOG(ui_widgets.open_colorsel));
    /* if color is non-NULL set it in the dialog as preselected color */
    if (color != NULL && utils_parse_color(color, &gc))
    {
        gtk_color_selection_set_current_color(GTK_COLOR_SELECTION(colorsel), &gc);
        gtk_color_selection_set_previous_color(GTK_COLOR_SELECTION(colorsel), &gc);
    }
 
    /* We make sure the dialog is visible. */
    gtk_window_present(GTK_WINDOW(ui_widgets.open_colorsel));
}