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/*
* T.c
*
* T is a lean Terminal emulator.
*/
#include <gdk/gdk.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <unistd.h>
#include <vte/vte.h>
#include "config.h"
static int window_count;
/* Event callbacks */
static gboolean window_delete_event_callback(GtkWidget *widget, GdkEvent *event, gpointer data);
static void window_destroy_callback(GtkWidget *widget, gpointer data);
static void terminal_child_exited_callback(VteTerminal *terminal, gpointer data);
static void terminal_window_title_changed_callback(VteTerminal *terminal, gpointer data);
/* Helper setup functions */
static void setup_pty(VteTerminal *terminal, GPid *child_pid);
static void set_app_preferences(VteTerminal *terminal);
static void setup_terminal(GtkWindow *window, VteTerminal *terminal);
static void setup_window(GtkWindow *window);
static void spawn_window(void);
static gboolean
window_delete_event_callback(GtkWidget *widget, GdkEvent *event, gpointer data)
{
/* TODO: always false? */
return FALSE;
}
static void
window_destroy_callback(GtkWidget *widget, gpointer data)
{
window_count--;
if (window_count == 0)
gtk_main_quit();
}
static gboolean
terminal_key_press_callback(GtkWidget *widget, GdkEvent *event, gpointer data)
{
GdkEventKey *key_event = (GdkEventKey *) event;
VteTerminal *terminal = (VteTerminal *) widget;
if ((key_event->state & GDK_SHIFT_MASK) == 0
|| (key_event->state & GDK_CONTROL_MASK) == 0)
return FALSE;
switch (key_event->keyval) {
case GDK_KEY_C:
case GDK_KEY_c:
vte_terminal_copy_clipboard(terminal);
break;
case GDK_KEY_V:
case GDK_KEY_v:
vte_terminal_paste_clipboard(terminal);
break;
case GDK_KEY_N:
case GDK_KEY_n:
spawn_window();
break;
}
return TRUE;
}
static void
terminal_child_exited_callback(VteTerminal *terminal, gpointer data)
{
GtkWindow *window;
window = (GtkWindow *) data;
gtk_widget_destroy(GTK_WIDGET(window));
}
static void
terminal_window_title_changed_callback(VteTerminal *terminal, gpointer data)
{
GtkWindow *window;
window = (GtkWindow *) data;
gtk_window_set_title(window, vte_terminal_get_window_title(terminal));
}
static void
setup_pty(VteTerminal *terminal, GPid *child_pid)
{
VtePty* pty;
char *argv[] = { NULL, NULL };
/* TODO: error handling */
argv[0] = vte_get_user_shell();
pty = vte_terminal_pty_new(terminal, VTE_PTY_DEFAULT, NULL);
vte_terminal_set_pty_object(terminal, pty);
vte_terminal_fork_command_full(terminal, VTE_PTY_DEFAULT, ".", argv, NULL, G_SPAWN_DO_NOT_REAP_CHILD, NULL, NULL, child_pid, NULL);
}
static void
set_app_preferences(VteTerminal *terminal)
{
/*
* Options set here can be configured through config.h
*/
int i;
GdkColor palette[PALETTE_SIZE], bg_color, fg_color;
/* Set preferences */
vte_terminal_set_mouse_autohide(terminal, MOUSE_AUTOHIDE);
vte_terminal_set_visible_bell(terminal, VISIBLE_BELL);
vte_terminal_set_audible_bell(terminal, AUDIBLE_BELL);
vte_terminal_set_font_from_string(terminal, FONT_NAME);
gdk_color_parse(FOREGROUND_COLOR, &fg_color);
gdk_color_parse(BACKGROUND_COLOR, &bg_color);
for (i = 0; i < PALETTE_SIZE; ++i)
gdk_color_parse(COLOR_PALETTE[i], &palette[i]);
vte_terminal_set_colors(terminal, &fg_color, &bg_color, palette, PALETTE_SIZE);
}
static void
setup_terminal(GtkWindow *window, VteTerminal *terminal)
{
GPid child_pid;
setup_pty(terminal, &child_pid);
vte_terminal_watch_child(terminal, child_pid);
g_signal_connect(terminal, "child-exited", G_CALLBACK(terminal_child_exited_callback), window);
g_signal_connect(terminal, "window-title-changed", G_CALLBACK(terminal_window_title_changed_callback), window);
g_signal_connect(terminal, "key-press-event", G_CALLBACK(terminal_key_press_callback), window);
set_app_preferences(terminal);
}
static void
setup_window(GtkWindow *window)
{
GdkGeometry hints;
VteTerminal *terminal;
terminal = (VteTerminal *) vte_terminal_new();
setup_terminal(window, terminal);
hints.base_width = vte_terminal_get_char_width(terminal);
hints.base_height = vte_terminal_get_char_height(terminal);
hints.min_width = hints.base_width * MIN_WIDTH;
hints.min_height = hints.base_height * MIN_HEIGHT;
hints.width_inc = hints.base_width;
hints.height_inc = hints.base_height;
gtk_window_set_geometry_hints(window, GTK_WIDGET(terminal), &hints, GDK_HINT_RESIZE_INC | GDK_HINT_MIN_SIZE | GDK_HINT_BASE_SIZE);
g_signal_connect(window, "delete-event", G_CALLBACK(window_delete_event_callback), NULL);
g_signal_connect(window, "destroy", G_CALLBACK(window_destroy_callback), NULL);
gtk_window_set_icon_name(window, "utilities-terminal");
gtk_container_add(GTK_CONTAINER(window), GTK_WIDGET(terminal));
gtk_widget_show(GTK_WIDGET(terminal));
gtk_widget_show(GTK_WIDGET(window));
}
static void
spawn_window(void)
{
GtkWindow *window;
window = (GtkWindow *) gtk_window_new(GTK_WINDOW_TOPLEVEL);
setup_window(window);
window_count++;
}
int
main(int argc, char *argv[])
{
gtk_init(&argc, &argv);
/* Initial state: single window */
window_count = 0;
spawn_window();
/*
* TODO
* Find out a nice and clean way of opening more windows when the user
* does not have focus on a T window. Maybe fire spawn_window() when we
* detect a running T process?
*/
gtk_main();
return 0;
}
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