Re: [gtk-list] Wanted: CList with Popup menu sample code

[José Miguel Rodríguez <jmiguel ceselsa es>]

robert_gasch@peoplesoft.com wrote:
> 
> Hi,
> 
> after some putzing around, I'm still having trouble creating a clist which
> displays a popup window when an item in the CList is selected. If anybody
> knows of some sample code which does this, I'd appreciate a pointer ...
> 
> Thanks a lot
> --> Robert
> 
> --
> To unsubscribe: mail -s unsubscribe gtk-list-request@redhat.com < /dev/null


You can see this (ESQL-C) example. It works, but you must remove sql code.

The code is incomplete, and the style is bad.




Good luck!

	- José Miguel
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>

EXEC SQL INCLUDE SQLCA;
EXEC SQL INCLUDE SQLDA;

extern GtkWidget *TableField(GtkWidget *parent, gchar *tit, gint ncols, gchar *cols[]);
extern void	frTableDescr(char *);
extern void	frTableQuery(char *);
extern long	SQLCheckError();

extern char	*NombreBD;
extern GtkWidget	*top;

void cbMenuTables(GtkWidget *item, int *numero);

/*
	El Tema de los menús es para volverse loco.
	De una manera o de otra, siempre es necesario tener
	datos globales.
*/
static struct POPUP_ITEMS {
	gchar		*texto;
	GtkSignalFunc	cb;
	gint		data;
	GtkWidget	*menuItem;
} popm[] = {
	{"Descripción", cbMenuTables, 0, NULL},
	{"Más Datos", cbMenuTables, 1, NULL},
	{"Query", cbMenuTables, 2, NULL},
	{"Borrar la Tabla", cbMenuTables, 3, NULL}
};

static struct BUTTS {
	char	*label;
	GtkWidget	*but;
	struct BUTDATA {
		int	butNumber;
		GtkWidget	*lista;
	} data;
} botones[] = {
	{"$ingres", NULL, {0, NULL}},
	{"I", NULL, {1, NULL}},
	{"T", NULL, {2, NULL}},
	{"V", NULL, {3, NULL}},
	{NULL, NULL, {0, NULL}}
};

struct LOADFLAGS {
	char	allUsers:1;
	char	I:1;
	char	T:1;
	char	V:1;
};

/* */
void loadTableList(struct LOADFLAGS flags, GtkWidget *lista) {
	EXEC SQL BEGIN DECLARE SECTION;
	char	name[33], owner[33], type[2];
	EXEC SQL END DECLARE SECTION;
	char	*linea[3] = {name, owner, type};

	gtk_clist_clear(GTK_CLIST(lista));
	if(flags.allUsers) {
		EXEC SQL 
		SELECT SQUEEZE(table_name), table_owner, table_type
			INTO :name, :owner, :type
		FROM iitables
		ORDER BY 2, 1;
		EXEC SQL BEGIN;
			gtk_clist_append(GTK_CLIST(lista), linea);
		EXEC SQL END;
		SQLCheckError();
	} else {
		EXEC SQL 
		SELECT SQUEEZE(table_name), table_owner, table_type
			INTO :name, :owner, :type
		FROM iitables
		WHERE table_owner != '$ingres'
		ORDER BY 2, 1;
		EXEC SQL BEGIN;
			gtk_clist_append(GTK_CLIST(lista), linea);
		EXEC SQL END;
		SQLCheckError();
	}
}

/* */
void menuPos(GtkMenu *menu, gint *x, gint *y, gpointer data) {
	gtk_object_set_data(GTK_OBJECT(menu), "NombreTabla", data);
}

/* */
void cbMenuTables(GtkWidget *item, int *numero) {
	char	*tabla;

	tabla = gtk_object_get_data(GTK_OBJECT(item->parent), "NombreTabla");
	switch(*numero) {
	case 0:
		/* Descripción */
		frTableDescr(tabla);
		break;
	case 1:
		/* Más Datos */
		break;
	case 2:
		/* Query */
		frTableQuery(tabla);
		break;
	case 3:
		/* Borrar la Tabla */
		break;
	}
}

/* */
void cbSelectColumn(GtkWidget *lista, gint column, gpointer data) {
	gtk_clist_set_sort_column(GTK_CLIST(lista), column);
	gtk_clist_sort(GTK_CLIST(lista));
}

/* */
int cbSelectTable(GtkWidget *lista, int row, int col, GdkEventButton *ev, gpointer data) {
	char	*tabla, *tipo;
	GtkWidget	*menu;

	gtk_clist_get_text(GTK_CLIST(lista), row, 0, &tabla);
	gtk_clist_get_text(GTK_CLIST(lista), row, 2, &tipo);
	switch(ev->button) {
	case 1:	/* Left */
		frTableDescr(tabla);
		break;
	case 3:	/* Right */
		menu = gtk_object_get_data(GTK_OBJECT(lista), "PopupMenu");
		if(menu) {
			if(popm[2].menuItem) {
				/*
				if(tipo[0] == 'T') {
					gtk_widget_set_sensitive(popm[2].menuItem, TRUE);
				} else {
					gtk_widget_set_sensitive(popm[2].menuItem, FALSE);
				}
				*/
			}
			gtk_menu_set_title(GTK_MENU(menu), tabla);
			gtk_menu_popup(GTK_MENU(menu), NULL, NULL, menuPos, (gpointer)tabla, NULL, NULL);
		}
	}
}

/* */
int cbUserButton(GtkWidget *button, gpointer data) {
	GtkWidget	*lista = (GtkWidget*)data;
	struct LOADFLAGS	flags;
	int	i;

	for(i = 0; botones[i].label; i++) {
		if(GTK_TOGGLE_BUTTON(button)->active) {
			flags.allUsers = TRUE;
		} else {
			flags.allUsers = FALSE;
		}
	}
	loadTableList(flags, lista);
}

/* */
void frTables() {
	char	*titles[] = {"Nombre:", "Propietario:", "Tipo:"};
	int		i;
	struct LOADFLAGS	flags;
	GtkWidget	*box, *bbox, *tableField, *lista, *menu;

	gtk_widget_show((box = gtk_vbox_new(FALSE, 2)));
	gtk_widget_show((bbox = gtk_hbox_new(FALSE, 2)));

	for(i = 0; botones[i].label; i++) {
		botones[i].but = gtk_check_button_new_with_label(botones[i].label);
		gtk_widget_show(botones[i].but);
		gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(botones[i].but), TRUE);
		gtk_box_pack_start(GTK_BOX(bbox), botones[i].but, FALSE, TRUE, 0);

		GTK_WIDGET_UNSET_FLAGS(botones[i].but, GTK_CAN_FOCUS);
		gtk_signal_connect(GTK_OBJECT(botones[i].but), "toggled",
			GTK_SIGNAL_FUNC(cbUserButton), (gpointer)&botones[i].data);
	}

	gtk_container_add(GTK_CONTAINER(top), box);
	gtk_box_pack_start(GTK_BOX(box), bbox, FALSE, TRUE, 0);

	tableField = TableField(NULL, "Tablas en la Base de Datos", 3, titles);
	gtk_signal_connect(GTK_OBJECT(tableField), "destroy", GTK_SIGNAL_FUNC(gtk_main_quit), NULL);

	gtk_box_pack_end(GTK_BOX(box), tableField, TRUE, TRUE, 0);

	gtk_widget_show_all(top);

	lista = gtk_object_get_data(GTK_OBJECT(tableField), "TFList");
	
	for(i = 0; botones[i].label; i++) {
		botones[i].data.lista = lista;
	}

	flags.allUsers = TRUE;
	loadTableList(flags, lista);

	gtk_clist_columns_autosize(GTK_CLIST(lista));

	gtk_clist_set_button_actions(GTK_CLIST(lista), 2, GTK_BUTTON_SELECTS);
	gtk_signal_connect_after(GTK_OBJECT(lista), "select_row", GTK_SIGNAL_FUNC(cbSelectTable), NULL);	gtk_signal_connect(GTK_OBJECT(lista), "click_column", GTK_SIGNAL_FUNC(cbSelectColumn), NULL);

	menu = gtk_menu_new();
	for(i = 0; i < 4; i++) {
		gtk_widget_show((popm[i].menuItem = gtk_menu_item_new_with_label(popm[i].texto)));
		gtk_menu_append(GTK_MENU(menu), popm[i].menuItem);
		gtk_signal_connect(GTK_OBJECT(popm[i].menuItem), "activate", popm[i].cb, (gpointer)&popm[i].data);
	}
	gtk_object_set_data(GTK_OBJECT(lista), "PopupMenu", menu);
}