src/gtkutils.h

/**
 * @file gtkutils.h GTK+ utility functions
 * @ingroup gtkui
 *
 * gaim
 *
 * Gaim is the legal property of its developers, whose names are too numerous
 * to list here.  Please refer to the COPYRIGHT file distributed with this
 * source distribution.
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
#ifndef _GAIM_GTK_UTILS_H_
#define _GAIM_GTK_UTILS_H_

#include <gtk/gtk.h>
#include "gtkconv.h"
#include "prpl.h"

typedef enum
{
	GAIM_BUTTON_HORIZONTAL,
	GAIM_BUTTON_VERTICAL

} GaimButtonOrientation;

typedef enum
{
	GAIM_BUTTON_NONE = 0,
	GAIM_BUTTON_TEXT,
	GAIM_BUTTON_IMAGE,
	GAIM_BUTTON_TEXT_IMAGE

} GaimButtonStyle;

typedef gboolean (*GaimCheckAccountFunc)(GaimAccount *account);

extern guint accels_save_timer;

/**
 * Sets up a gtkimhtml widget, loads it with smileys, and sets the
 * default signal handlers.
 *
 * @param imhtml The gtkimhtml widget to setup.
 */
void gaim_setup_imhtml(GtkWidget *imhtml);

/**
 * Surrounds the selected text in a conversation with the specified
 * pre and post strings.
 *
 * @param gtkconv The GTK+ conversation.
 * @param pre     The prefix string.
 * @param post    The postfix string.
 */
void gaim_gtk_surround(GaimGtkConversation *gtkconv,
					   const char *pre, const char *post);

/**
 * Advances the cursor past the position of the specified tags.
 *
 * @param gtkconv The GTK+ conversation.
 * @param pre     The prefix string.
 * @param post    The postfix string.
 */
void gaim_gtk_advance_past(GaimGtkConversation *gtkconv,
						   const char *pre, const char *post);

/**
 * Surrounds the selected text with the specified font.
 *
 * @param gtkconv The GTK+ conversation.
 * @param font    The new font.
 */
void gaim_gtk_set_font_face(GaimGtkConversation *gtkconv,
							const char *font);

/**
 * Displays a dialog for saving the buddy icon in a conversation.
 *
 * @param obj  @c NULL
 * @param conv The conversation.
 */
void gaim_gtk_save_icon_dialog(GtkObject *obj, GaimConversation *conv);

/**
 * Returns the display style for buttons for the specified conversation
 * type.
 *
 * @param type The conversation type.
 *
 * @return The display style.
 */
int gaim_gtk_get_dispstyle(GaimConversationType type);

/**
 * Changes a button to be either text or image, depending on
 * preferences.
 *
 * This function destroys the old button pointed to by @a button and
 * returns the new replacement button.
 *
 * @param text   The text for the button.
 * @param button The button widget.
 * @param stock  The stock image.
 * @param type   The conversation type the button belongs to.
 *
 * @return The new button widget to replace the old one.
 */
GtkWidget *gaim_gtk_change_text(const char *text, GtkWidget *button,
								const char *stock, GaimConversationType type);

/**
 * Toggles the sensitivity of a widget.
 *
 * @param widget    @c NULL. Used for signal handlers.
 * @param to_toggle The widget to toggle.
 */
void gaim_gtk_toggle_sensitive(GtkWidget *widget, GtkWidget *to_toggle);

/**
 * Checks if text has been entered into a GtkTextEntry widget.  If 
 * so, the GTK_RESPONSE_OK on the given dialog is set to TRUE.  
 * Otherwise GTK_RESPONSE_OK is set to FALSE.
 *
 * @param entry  The text entry widget.
 * @param dialog The dialog containing the text entry widget.
 */
void gaim_gtk_set_sensitive_if_input(GtkWidget *entry, GtkWidget *dialog);

/**
 * Toggles the sensitivity of all widgets in a pointer array.
 *
 * @param w    @c NULL. Used for signal handlers.
 * @param data The array containing the widgets to toggle.
 */
void gtk_toggle_sensitive_array(GtkWidget *w, GPtrArray *data);

/**
 * Adds a seperator to a menu.
 *
 * @param menu The menu to add a seperator to.
 */
void gaim_separator(GtkWidget *menu);

/**
 * Creates a menu item.
 *
 * @param menu The menu to which to append the menu item.
 * @param str  The title to use for the newly created menu item.
 *
 * @return The newly created menu item.
 */
GtkWidget *gaim_new_item(GtkWidget *menu, const char *str);

/**
 * Creates a check menu item.
 *
 * @param menu     The menu to which to append the check menu item.
 * @param str      The title to use for the newly created menu item.
 * @param sf       A function to call when the menu item is activated.
 * @param data     Data to pass to the signal function.
 * @param checked  The initial state of the check item
 *
 * @return The newly created menu item.
 */
GtkWidget *gaim_new_check_item(GtkWidget *menu, const char *str,
		GtkSignalFunc sf, gpointer data, gboolean checked);

/**
 * Creates a menu item.
 *
 * @param menu       The menu to which to append the menu item.
 * @param str        The title for the menu item.
 * @param icon       An icon to place to the left of the menu item,
 *                   or @c NULL for no icon.
 * @param sf         A function to call when the menu item is activated.
 * @param data       Data to pass to the signal function.
 * @param accel_key  Something.
 * @param accel_mods Something.
 * @param mod        Something.
 *
 * @return The newly created menu item.
 */
GtkWidget *gaim_new_item_from_stock(GtkWidget *menu, const char *str,
									const char *icon, GtkSignalFunc sf,
									gpointer data, guint accel_key,
									guint accel_mods, char *mod);

/**
 * Creates a button with the specified text and stock icon.
 *
 * @param text  The text for the button.
 * @param icon  The stock icon name.
 * @param style The orientation of the button.
 *
 * @return The button.
 */
GtkWidget *gaim_pixbuf_button_from_stock(const char *text, const char *icon,
										 GaimButtonOrientation style);

/**
 * Creates a toolbar button with the stock icon.
 *
 * @param stock The stock icon name.
 *
 * @return The button.
 */
GtkWidget *gaim_pixbuf_toolbar_button_from_stock(const char *stock);

/**
 * Creates a HIG preferences frame.
 *
 * @param parent The widget to put the frame into.
 * @param title  The title for the frame.
 *
 * @return The vbox to put things into.
 */
GtkWidget *gaim_gtk_make_frame(GtkWidget *parent, const char *title);

/**
 * Creates a drop-down option menu filled with protocols.
 *
 * @param id        The protocol to select by default.
 * @param cb        The callback to call when a protocol is selected.
 * @param user_data Data to pass to the callback function.
 *
 * @return The drop-down option menu.
 */
GtkWidget *gaim_gtk_protocol_option_menu_new(const char *id,
											 GCallback cb,
											 gpointer user_data);

/**
 * Creates a drop-down option menu filled with accounts.
 *
 * @param default_account    The account to select by default.
 * @param show_all           Whether or not to show all accounts, or just
 *                           active accounts.
 * @param cb                 The callback to call when an account is selected.
 * @param check_account_func A function for checking if an account should
 *                           be shown. This can be NULL.
 * @param user_data          Data to pass to the callback function.
 *
 * @return The drop-down option menu.
 */
GtkWidget *gaim_gtk_account_option_menu_new(GaimAccount *default_account,
		gboolean show_all, GCallback cb,
		GaimCheckAccountFunc check_account_func, gpointer user_data);

/**
 * Check if the given path is a directory or not.  If it is, then modify
 * the given GtkFileSelection dialog so that it displays the given path.
 * If the given path is not a directory, then do nothing.
 *
 * @param path    The path entered in the file selection window by the user.
 * @param filesel The file selection window.
 *
 * @return TRUE if given path is a directory, FALSE otherwise.
 */
gboolean gaim_gtk_check_if_dir(const char *path, GtkFileSelection *filesel);

/**
 * Parses a message to find \<IMG\> tags with valid ID attributes that
 * refer to images in Gaim's image store, and load them into a list
 * of GdkPixbufs. Image tags with missing ID paramaters, or those that
 * refer to images that are not in the store will have a corresponding
 * NULL entry on the list.
 *
 * @param message The message to parse for image tags.
 * @param list    A pointer to the GSList of GdkPixbufs that will be created.
 */
void gaim_gtk_find_images(const char *message, GSList **list);

/**
 * Sets up GtkSpell for the given GtkTextView, reporting errors
 * if encountered.
 *
 * This does nothing if Gaim is not compiled with GtkSpell support.
 *
 * @param textview The textview widget to setup spellchecking for.
 */
void gaim_gtk_setup_gtkspell(GtkTextView *textview);

/**
 * Stylizes the specified text using HTML, according to the current
 * font options.
 *
 * @param text The text to stylize.
 * @param len  The intended length of the new buffer.
 *
 * @return A newly allocated string of length @a len, containing the
 *         stylized version of @a text.
 *
 * @todo Move this to a UI-specific file.
 */
char *stylize(const gchar *text, int len);

/**
 * Save menu accelerators callback
 */
void gaim_gtk_save_accels_cb(GtkAccelGroup *accel_group, guint arg1,
							 GdkModifierType arg2, GClosure *arg3,
							 gpointer data);

/**
 * Save menu accelerators
 */
gboolean gaim_gtk_save_accels(gpointer data);

/**
 * Load menu accelerators
 */
void gaim_gtk_load_accels();

/**
 * Parses an application/x-im-contact MIME message and returns the
 * data inside.
 *
 * @param msg          The MIME message.
 * @param all_accounts If TRUE, check all compatible accounts, online or
 *                     offline. If FALSE, check only online accounts.
 * @param ret_account  The best guess at a compatible protocol,
 *                     based on ret_protocol. If NULL, no account was found.
 * @param ret_protocol The returned protocol type.
 * @param ret_username The returned username.
 * @param ret_alias    The returned alias.
 *
 * @return TRUE if the message was parsed for the minimum necessary data.
 *         FALSE otherwise.
 */
gboolean gaim_gtk_parse_x_im_contact(const char *msg, gboolean all_accounts,
									 GaimAccount **ret_account,
									 char **ret_protocol, char **ret_username,
									 char **ret_alias);

/**
 * Sets an ATK name for a given widget.  Also sets the labelled-by 
 * and label-for ATK relationships.
 *
 * @w The widget that we want to name.
 * @l A GtkLabel that we want to use as the ATK name for the widget.
 */
void gaim_set_accessible_label(GtkWidget *w, GtkWidget *l);

/**
 * A valid GtkMenuPositionFunc.  This is used to determine where 
 * to draw context menu's when the menu is activated with the 
 * keyboard (shift+F10).  If the menu is activated with the mouse, 
 * then you should just use GTK's built-in position function, 
 * because it does a better job of positioning the menu.
 *
 * @param menu The menu we are positioning.
 * @param x Address of the gint representing the horizontal position
 *        where the menu shall be drawn. This is an output parameter.
 * @param y Address of the gint representing the vertical position
 *        where the menu shall be drawn. This is an output parameter.
 * @param push_in This is an output parameter?
 * @param user_data Not used by this particular position function.
 */
void gaim_gtk_treeview_popup_menu_position_func(GtkMenu *menu,
												gint *x,
												gint *y,
												gboolean *push_in,
												gpointer user_data);

#endif /* _GAIM_GTK_UTILS_H_ */