/** \file menu.c
* Menu creation and handling.
*/
/* XTrkCad - Model Railroad CAD
* Copyright (C) 2005 Dave Bullis, 2012 Martin Fischer
*
* 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.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#define GTK_DISABLE_SINGLE_INCLUDES
#define GDK_DISABLE_DEPRECATED
#define GTK_DISABLE_DEPRECATED
#define GSEAL_ENABLE
#include <gtk/gtk.h>
#include <gdk/gdk.h>
#include <gdk/gdkkeysyms.h>
#include "gtkint.h"
#include "i18n.h"
#define WLISTITEM "wListItem" /**< id for object data */
/*
*****************************************************************************
*
* Menus
*
*****************************************************************************
*/
typedef enum { M_MENU, M_SEPARATOR, M_PUSH, M_LIST, M_LISTITEM, M_TOGGLE, M_RADIO } mtype_e;
typedef enum { MM_BUTT, MM_MENU, MM_BAR, MM_POPUP } mmtype_e;
typedef struct{ mtype_e mtype; /**< menu entry type */
GtkWidget *menu_item;
wMenu_p parentMenu;
int recursion; /**< recursion counter */
} MOBJ_COMMON; /**< menu item specific data */
struct wMenuItem_t {
WOBJ_COMMON
MOBJ_COMMON m;
};
typedef struct wMenuItem_t * wMenuItem_p;
// a few macros to make access to members easier
//#define PTR2M( ptr ) ((ptr)->m)
#define MMENUITEM( ptr ) (((ptr)->m).menu_item)
#define MPARENT( ptr ) (((ptr)->m).parentMenu)
#define MITEMTYPE( ptr ) (((ptr)->m).mtype)
#define MRECURSION( ptr ) (((ptr)->m).recursion)
struct wMenu_t {
WOBJ_COMMON
MOBJ_COMMON m;
mmtype_e mmtype;
wMenuItem_p first, last;
GtkWidget * menu;
GSList *radioGroup; /* radio button group */
wMenuTraceCallBack_p traceFunc;
void * traceData;
GtkLabel * labelG;
GtkWidget * imageG;
};
struct wMenuPush_t {
WOBJ_COMMON
MOBJ_COMMON m;
wMenuCallBack_p action;
wBool_t enabled;
};
struct wMenuRadio_t {
WOBJ_COMMON
MOBJ_COMMON m;
wMenuCallBack_p action;
wBool_t enabled;
};
struct wMenuList_t {
WOBJ_COMMON
MOBJ_COMMON m;
int max;
int count;
wMenuListCallBack_p action;
};
struct wMenuListItem_t {
WOBJ_COMMON
MOBJ_COMMON m;
wMenuList_p mlist;
};
typedef struct wMenuListItem_t * wMenuListItem_p;
struct wMenuToggle_t {
WOBJ_COMMON
MOBJ_COMMON m;
wMenuToggleCallBack_p action;
wBool_t enabled;
wBool_t set;
};
/*-----------------------------------------------------------------*/
/**
* Handle activate event for menu items.
*
* \param widget IN widget that emitted the signal
* \param value IN application data
* \return
*/
static void pushMenuItem(
GtkWidget * widget,
gpointer value )
{
wMenuItem_p m = (wMenuItem_p)value;
wMenuToggle_p mt;
if (MRECURSION( m ))
return;
switch MITEMTYPE( m ) {
case M_PUSH:
((wMenuPush_p)m)->action( ((wMenuPush_p)m)->data );
break;
case M_TOGGLE:
mt = (wMenuToggle_p)m;
wMenuToggleSet( mt, !mt->set );
mt->action( mt->set, mt->data );
break;
case M_RADIO:
/* NOTE: action is only called when radio button is activated, not when deactivated */
if( gtk_check_menu_item_get_active((GtkCheckMenuItem *)widget ) == TRUE )
((wMenuRadio_p)m)->action( ((wMenuRadio_p)m)->data );
break;
case M_MENU:
return;
default:
/*fprintf(stderr," Oops menu\n");*/
return;
}
if( MPARENT(m)->traceFunc ) {
MPARENT(m)->traceFunc( MPARENT( m ), m->labelStr, MPARENT(m)->traceData );
}
}
/**
* Create a new menu element, add to the parent menu and to help
*
* \param m IN parent menu
* \param mtype IN type of new entry
* \param helpStr IN help topic
* \param labelStr IN display label
* \param size IN size of additional data?
* \return the newly created menu element
*/
static wMenuItem_p createMenuItem(
wMenu_p m,
mtype_e mtype,
const char * helpStr,
const char * labelStr,
int size )
{
wMenuItem_p mi;
mi = (wMenuItem_p)wlibAlloc( NULL, B_MENUITEM, 0, 0, labelStr, size, NULL );
MITEMTYPE( mi )= mtype;
switch ( mtype ) {
case M_LIST:
MMENUITEM( mi ) = gtk_menu_item_new_with_mnemonic(wlibConvertInput(mi->labelStr)); // NULL; //PTR2M(m).menu_item
break;
case M_SEPARATOR:
MMENUITEM( mi ) = gtk_separator_menu_item_new();
break;
case M_TOGGLE:
MMENUITEM( mi ) = gtk_check_menu_item_new_with_mnemonic(wlibConvertInput(mi->labelStr));
break;
case M_RADIO:
MMENUITEM( mi ) = gtk_radio_menu_item_new_with_mnemonic(m->radioGroup, wlibConvertInput(mi->labelStr));
m->radioGroup = gtk_radio_menu_item_get_group (GTK_RADIO_MENU_ITEM (MMENUITEM( mi )));
break;
default:
MMENUITEM( mi ) = gtk_menu_item_new_with_mnemonic(wlibConvertInput(mi->labelStr));
break;
}
if (MMENUITEM( mi )) {
if (m)
gtk_menu_shell_append( (GtkMenuShell *)(m->menu), MMENUITEM( mi ) );
g_signal_connect( GTK_OBJECT(MMENUITEM( mi )), "activate",
G_CALLBACK(pushMenuItem), mi );
gtk_widget_show(MMENUITEM( mi ));
}
// this is a link list of all menu items belonging to a specific menu
// is used in automatic processing (macro)??
if (m) {
if (m->first == NULL) {
m->first = mi;
} else {
m->last->next = (wControl_p)mi;
}
m->last = mi;
}
mi->next = NULL;
if (helpStr != NULL) {
wlibAddHelpString( MMENUITEM( mi ), helpStr );
}
MPARENT( mi ) = m;
return mi;
}
/**
* Add a accelerator key to a widget
*
* @param w IN unused(?)
* @param menu IN unused(?)
* @param menu_item IN owning widget
* @param acclKey IN the accelerator key
*/
static void setAcclKey( wWin_p w, GtkWidget * menu, GtkWidget * menu_item, int acclKey )
{
int mask;
static GtkAccelGroup * accel_alpha_group = NULL;
static GtkAccelGroup * accel_nonalpha_group = NULL;
guint oldmods;
if (accel_alpha_group == NULL) {
accel_alpha_group = gtk_accel_group_new();
/*gtk_accel_group_set_mod_mask( accel_group, GDK_SHIFT_MASK|GDK_CONTROL_MASK|GDK_MOD1_MASK );*/
gtk_window_add_accel_group(GTK_WINDOW(gtkMainW->gtkwin), accel_alpha_group );
}
if (accel_nonalpha_group == NULL) {
oldmods = gtk_accelerator_get_default_mod_mask();
gtk_accelerator_set_default_mod_mask( GDK_CONTROL_MASK | GDK_MOD1_MASK );
accel_nonalpha_group = gtk_accel_group_new();
/*gtk_accel_group_set_mod_mask( accel_group, GDK_SHIFT_MASK|GDK_CONTROL_MASK|GDK_MOD1_MASK );*/
gtk_window_add_accel_group(GTK_WINDOW(gtkMainW->gtkwin), accel_nonalpha_group );
gtk_accelerator_set_default_mod_mask( oldmods );
}
mask = 0;
if (acclKey) {
if (acclKey&WALT) {
mask |= GDK_MOD1_MASK;
}
if (acclKey&WSHIFT) {
mask |= GDK_SHIFT_MASK;
switch ( (acclKey&0xFF) ) {
case '0': acclKey += ')'-'0'; break;
case '1': acclKey += '!'-'1'; break;
case '2': acclKey += '@'-'2'; break;
case '3': acclKey += '#'-'3'; break;
case '4': acclKey += '$'-'4'; break;
case '5': acclKey += '%'-'5'; break;
case '6': acclKey += '^'-'6'; break;
case '7': acclKey += '&'-'7'; break;
case '8': acclKey += '*'-'8'; break;
case '9': acclKey += '('-'9'; break;
case '`': acclKey += '~'-'`'; break;
case '-': acclKey += '_'-'-'; break;
case '=': acclKey += '+'-'='; break;
case '\\': acclKey += '|'-'\\'; break;
case '[': acclKey += '{'-'['; break;
case ']': acclKey += '}'-']'; break;
case ';': acclKey += ':'-';'; break;
case '\'': acclKey += '"'-'\''; break;
case ',': acclKey += '<'-','; break;
case '.': acclKey += '>'-'.'; break;
case '/': acclKey += '?'-'/'; break;
default: break;
}
}
if (acclKey&WCTL) {
mask |= GDK_CONTROL_MASK;
}
gtk_widget_add_accelerator( menu_item, "activate",
(isalpha(acclKey&0xFF)?accel_alpha_group:accel_nonalpha_group),
toupper(acclKey&0xFF), mask, GTK_ACCEL_VISIBLE|GTK_ACCEL_LOCKED );
}
}
/*-----------------------------------------------------------------*/
/**
* Create a radio button as a menu entry
*
* \param m IN menu to be extended
* \param helpStr IN reference into help
* \param labelStr IN text for entry
* \param acclKey IN accelerator key to add
* \param action IN callback function
* \param data IN application data
* \param helpStr IN
* \return menu entry
*/
wMenuRadio_p wMenuRadioCreate(
wMenu_p m,
const char * helpStr,
const char * labelStr,
long acclKey,
wMenuCallBack_p action,
void *data )
{
wMenuRadio_p mi;
mi = (wMenuRadio_p)createMenuItem( m, M_RADIO, helpStr, labelStr, sizeof *mi );
//~ if (m->mmtype == MM_POPUP && !testMenuPopup)
//~ return mi;
setAcclKey( m->parent, m->menu, MMENUITEM( mi ), acclKey );
mi->action = action;
mi->data = data;
mi->enabled = TRUE;
return mi;
}
/**
* Set radio button active
*
* \param mi IN menu entry for radio button
* \return
*/
void wMenuRadioSetActive(
wMenuRadio_p mi )
{
gtk_check_menu_item_set_active( (GtkCheckMenuItem *)MMENUITEM(mi), TRUE );
}
/*-----------------------------------------------------------------*/
/**
* Create a menu entry
*
* \param m IN menu to be extended
* \param helpStr IN reference into help
* \param labelStr IN text for entry
* \param acclKey IN acceleratoor key to add
* \param action IN callback function
* \param data IN application data
* \return menu entry
*/
wMenuPush_p wMenuPushCreate(
wMenu_p m,
const char * helpStr,
const char * labelStr,
long acclKey,
wMenuCallBack_p action,
void *data )
{
wMenuPush_p mi;
mi = (wMenuPush_p)createMenuItem( m, M_PUSH, helpStr, labelStr, sizeof( struct wMenuPush_t ));
setAcclKey( m->parent, m->menu, MMENUITEM( mi ), acclKey );
mi->action = action;
mi->data = data;
mi->enabled = TRUE;
return mi;
}
/**
* Enable menu entry
*
* \param mi IN menu entry
* \param enable IN new state
* \return
*/
void wMenuPushEnable(
wMenuPush_p mi,
wBool_t enable )
{
mi->enabled = enable;
gtk_widget_set_sensitive( GTK_WIDGET(MMENUITEM( mi )), enable );
}
/*-----------------------------------------------------------------*/
/**
* Create a submenu
*
* \param m IN menu to be extended
* \param helpStr IN reference into help
* \param labelStr IN text for entry
* \return menu entry
*/
wMenu_p wMenuMenuCreate(
wMenu_p m,
const char * helpStr,
const char * labelStr )
{
wMenu_p mi;
mi = (wMenu_p)createMenuItem( m, M_MENU, helpStr, labelStr, sizeof( struct wMenu_t ));
mi->mmtype = MM_MENU;
mi->menu = gtk_menu_new();
gtk_menu_item_set_submenu( GTK_MENU_ITEM(MMENUITEM( mi )), mi->menu );
return mi;
}
/*-----------------------------------------------------------------*/
/**
* Create a menu separator
*
* \param mi IN menu entry
* \return
*/
void wMenuSeparatorCreate(
wMenu_p m )
{
createMenuItem( m, M_SEPARATOR, NULL, "", sizeof( struct wMenuItem_t ));
}
/*-----------------------------------------------------------------*/
/**
* Find the start of a menu item list in a menu
*
* \param ml IN menu list to be searched
* \param pChildren OUT list of children in menu container
* \return -1 if not found, index in children list otherwise
*/
int getMlistOrigin( wMenuList_p ml, GList **pChildren )
{
GtkWidget *mi;
int count = 0;
int found = -1;
GtkWidget *mitem = MMENUITEM( ml );
*pChildren = gtk_container_get_children( GTK_CONTAINER( MPARENT( ml )->menu ));
if( !*pChildren )
return( -1 );
while( (mi = g_list_nth_data( *pChildren, count ))) {
if( mi == mitem ) {
found = TRUE;
break;
}
else {
count++;
}
}
if( found )
return( count );
else
return( -1 );
}
/**
* Signal handler for clicking onto a menu list item.
* Parameters are the GtkWidget as expected and the pointer to the MenuListItem
*
* \param widget IN the GtkWidget
* \param value IN the menu list item
* \return
*/
static void pushMenuList(
GtkWidget * widget,
gpointer value )
{
// pointer to the list item
wMenuListItem_p ml = (wMenuListItem_p)value;
if (MRECURSION( ml ))
return;
if (ml->mlist->count <= 0) {
// this should never happen
fprintf( stderr, "pushMenuItem: empty list\n" );
return;
}
// this is the applications callback routine
if (ml->mlist->action) {
const char * itemLabel;
itemLabel = gtk_menu_item_get_label( GTK_MENU_ITEM( widget ));
ml->mlist->action( 0, itemLabel, ml->data );
return;
}
fprintf( stderr, "pushMenuItem: item (%lx) not found\n", (long)widget );
}
/**
* Create a list menu entry
*
* \param m IN menu to be extended
* \param helpStr IN reference into help
* \param max IN maximum number of elements
* \param action IN callback function
* \return menu entry
*/
wMenuList_p wMenuListCreate(
wMenu_p m,
const char * helpStr,
int max,
wMenuListCallBack_p action )
{
wMenuList_p mi;
mi = (wMenuList_p)createMenuItem( m, M_LIST, NULL, _("<Empty List>"), sizeof( struct wMenuList_t ));
gtk_widget_set_sensitive( GTK_WIDGET(MMENUITEM( mi )), FALSE );
mi->next = NULL;
mi->count = 0;
mi->max = max;
MPARENT( mi ) = m;
mi->action = action;
return (wMenuList_p)mi;
}
/**
* Add a new item to a list of menu entries
* The placeholder for the list is looked up. Then the new item is added immediately
* behind it. In case the maximum number of items is reached the last item is removed.
*
* \param ml IN handle for the menu list - the placeholder item
* \param index IN currently ignored
* \param labelStr IN the menu label for the new item
* \param data IN application data for the new item
* \return
*/
void wMenuListAdd(
wMenuList_p ml,
int index,
const char * labelStr,
const void * data )
{
int i = 0;
GList * children;
i = getMlistOrigin( ml, &children );
if( i > -1 ) {
wMenuListItem_p mi;
// we're adding an item, so hide the default placeholder
gtk_widget_hide( MMENUITEM( ml ));
// delete an earlier entry with the same label
wMenuListDelete( ml, labelStr );
// a new item
ml->count ++;
// is there a maximum number of items set and reached with the new item?
if(( ml->max != -1 ) && ( ml->count > ml-> max )) {
wMenuListItem_p mold;
GtkWidget * item;
// get the last item in the list
item = g_list_nth_data( children, i + ml->max );
// get the pointer to the data structure
mold = g_object_get_data( G_OBJECT( item ), WLISTITEM );
// kill the menu entry
gtk_widget_destroy( item );
// free the data
free( (void *)mold->labelStr );
free( (void *)mold );
ml->count--;
}
// create the new menu item and initialize the data fields
mi = (wMenuListItem_p)wlibAlloc( NULL, B_MENUITEM, 0, 0, labelStr, sizeof( struct wMenuListItem_t ), NULL );
MITEMTYPE( mi ) = M_LISTITEM;
MMENUITEM( mi ) = gtk_menu_item_new_with_label(wlibConvertInput(mi->labelStr));
mi->data = (void *)data;
mi->mlist = ml;
g_object_set_data( G_OBJECT(MMENUITEM( mi )), WLISTITEM, mi );
// add the item to the menu
gtk_menu_shell_insert((GtkMenuShell *)(MPARENT( ml )->menu), MMENUITEM( mi ), i + 1 );
g_signal_connect( GTK_OBJECT(MMENUITEM( mi )), "activate", G_CALLBACK(pushMenuList), mi );
gtk_widget_show(MMENUITEM( mi ));
}
if( children )
g_list_free( children );
}
/**
* Remove the menu entry identified by a given label.
*
* \param ml IN menu list
* \param labelStr IN label string of item
*/
void wMenuListDelete(
wMenuList_p ml,
const char * labelStr )
{
int i;
int found = FALSE;
GList * children;
// find the placeholder for the list in the menu
i = getMlistOrigin( ml, &children );
if( i > -1 ) {
int origin;
GtkWidget * item;
char * labelStrConverted;
// starting from the placeholder, find the menu item with the correct text
found = FALSE;
labelStrConverted = wlibConvertInput( labelStr );
origin = i;
// get menu item
// get label of item
// compare items
// if identical, leave loop
while( i <= origin + ml->count && !found ) {
const char * itemLabel;
item = g_list_nth_data( children, i );
itemLabel = gtk_menu_item_get_label( GTK_MENU_ITEM( item ));
if( !g_utf8_collate (itemLabel, labelStrConverted ))
found = TRUE;
else
i++;
}
if( found ) {
wMenuListItem_p mold;
mold = g_object_get_data( G_OBJECT( item ), WLISTITEM );
// kill the menu entry
gtk_widget_destroy( item );
// free the data
free( (void *)mold->labelStr );
free( (void *)mold );
ml->count--;
}
}
if( children )
g_list_free( children );
}
/**
* Get the label and the application data of a specific menu list item
*
* \param ml IN menu list
* \param index IN item within list
* \param data OUT application data
* \return item label
*/
const char *
wMenuListGet( wMenuList_p ml, int index, void ** data )
{
int i;
GList * children;
const char * itemLabel = NULL;
// check whether index is in range, if not return immediately
if ( index >= ml->count || ml->count <= 0 ) {
if (data)
*data = NULL;
return NULL;
}
// find the placeholder for the list in the menu
i = getMlistOrigin( ml, &children );
if( i > -1 ) {
GtkWidget * item;
wMenuListItem_p mold;
item = g_list_nth_data( children, i + index + 1 );
itemLabel = gtk_menu_item_get_label( GTK_MENU_ITEM( item ));
mold = g_object_get_data( G_OBJECT( GTK_MENU_ITEM( item ) ), WLISTITEM );
*data = mold->data;
}
if( children )
g_list_free( children );
return itemLabel;
}
/**
* Remove all items from menu list
*
* \param ml IN menu item list
*/
void wMenuListClear(
wMenuList_p ml )
{
int origin;
GList * children;
if (ml->count == 0)
return;
origin = getMlistOrigin( ml, &children );
if( origin > -1 ) {
int i;
i = origin;
while( i < origin + ml->count ) {
wMenuListItem_p mold;
GtkWidget * item;
item = g_list_nth_data( children, i + 1 );
mold = g_object_get_data( G_OBJECT( item ), WLISTITEM );
// kill the menu entry
gtk_widget_destroy( item );
// free the data
free( (void *)mold->labelStr );
free( (void *)mold );
i++;
}
}
ml->count = 0;
gtk_widget_show( MMENUITEM( ml ));
if( children )
g_list_free( children );
}
/*-----------------------------------------------------------------*/
/**
* Create a check box as part of a menu
*
* \param m IN menu to be extended
* \param helpStr IN reference into help
* \param labelStr IN text for entry
* \param acclKey IN acceleratoor key to add
* \param set IN initial state
* \param action IN callback function
* \param data IN application data
* \return menu entry
*/
wMenuToggle_p wMenuToggleCreate(
wMenu_p m,
const char * helpStr,
const char * labelStr,
long acclKey,
wBool_t set,
wMenuToggleCallBack_p action,
void * data )
{
wMenuToggle_p mt;
mt = (wMenuToggle_p)createMenuItem( m, M_TOGGLE, helpStr, labelStr, sizeof( struct wMenuToggle_t ));
setAcclKey( m->parent, m->menu, MMENUITEM( mt ), acclKey );
mt->action = action;
mt->data = data;
mt->enabled = TRUE;
MPARENT( mt ) = m;
wMenuToggleSet( mt, set );
return mt;
}
/**
* Get the state of a menu check box
*
* \param mt IN menu to be extended
* \return current state
*/
wBool_t wMenuToggleGet(
wMenuToggle_p mt )
{
return mt->set;
}
/**
* Set a menu check box active / inactive
*
* \param mt IN menu to be extended
* \param set IN new state
* \return previous state
*/
wBool_t wMenuToggleSet(
wMenuToggle_p mt,
wBool_t set )
{
wBool_t rc;
if (mt==NULL) return 0;
MRECURSION( mt )++;
gtk_check_menu_item_set_active( GTK_CHECK_MENU_ITEM(MMENUITEM( mt )), set );
MRECURSION( mt )--;
rc = mt->set;
mt->set = set;
return rc;
}
/**
* Enable menu entry containing a check box
*
* \param mi IN menu entry
* \param enable IN new state
* \return
*/
void wMenuToggleEnable(
wMenuToggle_p mt,
wBool_t enable )
{
mt->enabled = enable;
}
/*-----------------------------------------------------------------*/
/**
* Set the text for a menu
*
* \param m IN menu entry
* \param labelStr IN new text
* \return
*/
void wMenuSetLabel( wMenu_p m, const char * labelStr) {
wlibSetLabel( m->widget, m->option, labelStr, &m->labelG, &m->imageG );
}
/**
* Signal handler for menu items. Parameters are the GtkWidget as
* expected and the pointer to the MenuListItem
*
* \param widget IN the GtkWidget
* \param value IN the menu list item
* \return
*/
static gint pushMenu(
GtkWidget * widget,
wMenu_p m )
{
gtk_menu_popup( GTK_MENU(m->menu), NULL, NULL, NULL, NULL, 0, 0 );
/* Tell calling code that we have handled this event; the buck
* stops here. */
return TRUE;
}
/**
* Create a button with a drop down menu
*
* \param parent IN parent window
* \param x IN x position
* \param y IN y position
* \param helpStr IN help anchor string
* \param labelStr IN label for menu
* \param option IN options (Whatever they are)
* \return pointer to the created menu
*/
wMenu_p wMenuCreate(
wWin_p parent,
wPos_t x,
wPos_t y,
const char * helpStr,
const char * labelStr,
long option )
{
wMenu_p m;
m = wlibAlloc( parent, B_MENU, x, y, labelStr, sizeof( struct wMenu_t ), NULL );
m->mmtype = MM_BUTT;
m->option = option;
m->traceFunc = NULL;
m->traceData = NULL;
wlibComputePos( (wControl_p)m );
m->widget = gtk_button_new();
g_signal_connect (GTK_OBJECT(m->widget), "clicked",
G_CALLBACK(pushMenu), m );
m->menu = gtk_menu_new();
wMenuSetLabel( m, labelStr );
gtk_fixed_put( GTK_FIXED(parent->widget), m->widget, m->realX, m->realY );
wlibControlGetSize( (wControl_p)m );
if ( m->w < 80 && (m->option&BO_ICON)==0) {
m->w = 80;
gtk_widget_set_size_request( m->widget, m->w, m->h );
}
gtk_widget_show( m->widget );
wlibAddButton( (wControl_p)m );
wlibAddHelpString( m->widget, helpStr );
return m;
}
/**
* Add a drop-down menu to the menu bar.
*
* \param w IN main window handle
* \param helpStr IN unused (should be help topic )
* \param labelStr IN label for the drop-down menu
* \return pointer to the created drop-down menu
*/
wMenu_p wMenuBarAdd(
wWin_p w,
const char * helpStr,
const char * labelStr )
{
wMenu_p m;
GtkWidget * menuItem;
m = wlibAlloc( w, B_MENU, 0, 0, labelStr, sizeof( struct wMenu_t ), NULL );
m->mmtype = MM_BAR;
m->realX = 0;
m->realY = 0;
menuItem = gtk_menu_item_new_with_mnemonic( wlibConvertInput(m->labelStr) );
m->menu = gtk_menu_new();
gtk_menu_item_set_submenu( GTK_MENU_ITEM(menuItem), m->menu );
gtk_menu_shell_append( GTK_MENU_SHELL(w->menubar), menuItem );
gtk_widget_show( menuItem );
m->w = 0;
m->h = 0;
/* TODO: why is help not supported here? */
/*gtkAddHelpString( m->panel_item, helpStr );*/
return m;
}
/*-----------------------------------------------------------------*/
/**
* Create a popup menu (context menu)
*
* \param w IN parent window
* \param labelStr IN label
* \return the created menu
*/
wMenu_p wMenuPopupCreate(
wWin_p w,
const char * labelStr )
{
wMenu_p b;
b = wlibAlloc( w, B_MENU, 0, 0, labelStr, sizeof *b, NULL );
b->mmtype = MM_POPUP;
b->option = 0;
b->menu = gtk_menu_new();
b->w = 0;
b->h = 0;
g_signal_connect( GTK_OBJECT (b->menu), "key_press_event",
G_CALLBACK(catch_shift_ctrl_alt_keys), b);
g_signal_connect( GTK_OBJECT (b->menu), "key_release_event",
G_CALLBACK (catch_shift_ctrl_alt_keys), b);
gtk_widget_set_events ( GTK_WIDGET(b->menu), GDK_EXPOSURE_MASK|GDK_KEY_PRESS_MASK|GDK_KEY_RELEASE_MASK );
return b;
}
/**
* Show a context menu
*
* \param mp IN the context menu
*/
void wMenuPopupShow( wMenu_p mp )
{
gtk_menu_popup( GTK_MENU(mp->menu), NULL, NULL, NULL, NULL, 0, 0 );
}
/*-----------------------------------------------------------------*/
/**
* ?? Seems to be related to macro / automatic playback functionality
*
* \param m IN
* \param func IN
* \param data IN
*/
void wMenuSetTraceCallBack(
wMenu_p m,
wMenuTraceCallBack_p func,
void * data )
{
m->traceFunc = func;
m->traceData = data;
}
/**
* ??? same as above
* \param m IN
* \param label IN
* \return describe the return value
*/
wBool_t wMenuAction(
wMenu_p m,
const char * label )
{
wMenuItem_p mi;
wMenuToggle_p mt;
for ( mi = m->first; mi != NULL; mi = (wMenuItem_p)mi->next ) {
if ( strcmp( mi->labelStr, label ) == 0 ) {
switch( MITEMTYPE( mi )) {
case M_SEPARATOR:
break;
case M_PUSH:
if ( ((wMenuPush_p)mi)->enabled == FALSE )
wBeep();
else
((wMenuPush_p)mi)->action( ((wMenuPush_p)mi)->data );
break;
case M_TOGGLE:
mt = (wMenuToggle_p)mi;
if ( mt->enabled == FALSE ) {
wBeep();
} else {
wMenuToggleSet( mt, !mt->set );
mt->action( mt->set, mt->data );
}
break;
case M_MENU:
break;
case M_LIST:
break;
default:
/*fprintf(stderr, "Oops: wMenuAction\n");*/
break;
}
return TRUE;
}
}
return FALSE;
}