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/* $Id: keyboard.c,v 1.8 2010/07/26 17:24:41 khorben Exp $ */

/* This file is part of DeforaOS Desktop Keyboard */

/* 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, version 3 of the License.

* 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, see <http://www.gnu.org/licenses/>. */

#include <stdlib.h>

#include <string.h>

#include <gtk/gtk.h>

#define XK_LATIN1

#define XK_MISCELLANY

#include <X11/keysymdef.h>

#include "callbacks.h"

#include "keyboard.h"

/* Keyboard */

/* private */

/* types */

struct _Keyboard

{

KeyboardKey * layout[4];

PangoFontDescription * bold;

GtkWidget * window;

GdkRectangle geometry;

};

/* variables */

static KeyboardKey _1234567890[] =

{

{ NULL, NULL, XK_Escape, "Esc", NULL },

{ NULL, NULL, XK_1, "1", NULL },

{ NULL, NULL, XK_2, "2", NULL },

{ NULL, NULL, XK_3, "3", NULL },

{ NULL, NULL, XK_4, "4", NULL },

{ NULL, NULL, XK_5, "5", NULL },

{ NULL, NULL, XK_6, "6", NULL },

{ NULL, NULL, XK_7, "7", NULL },

{ NULL, NULL, XK_8, "8", NULL },

{ NULL, NULL, XK_9, "9", NULL },

{ NULL, NULL, XK_0, "0", NULL },

{ NULL, NULL, XK_BackSpace, "\xe2\x8c\xab", NULL },

{ NULL, NULL, 0, NULL, NULL }

};

static KeyboardKey _qwertyuiop[] =

{

{ NULL, NULL, XK_Tab, "\xe2\x86\x92|", NULL },

{ NULL, NULL, XK_Q, "q", "Q" },

{ NULL, NULL, XK_W, "w", "W" },

{ NULL, NULL, XK_E, "e", "E" },

{ NULL, NULL, XK_R, "r", "R" },

{ NULL, NULL, XK_T, "t", "T" },

{ NULL, NULL, XK_Y, "y", "Y" },

{ NULL, NULL, XK_U, "u", "U" },

{ NULL, NULL, XK_I, "i", "I" },

{ NULL, NULL, XK_O, "o", "O" },

{ NULL, NULL, XK_P, "p", "P" },

{ NULL, NULL, XK_Return, "Ret", NULL },

{ NULL, NULL, 0, NULL, NULL }

};

static KeyboardKey _asdfghjkl[] =

{

{ NULL, NULL, XK_Caps_Lock, "Caps", NULL },

{ NULL, NULL, XK_A, "a", "A" },

{ NULL, NULL, XK_S, "s", "S" },

{ NULL, NULL, XK_D, "d", "D" },

{ NULL, NULL, XK_F, "f", "F" },

{ NULL, NULL, XK_G, "g", "G" },

{ NULL, NULL, XK_H, "h", "H" },

{ NULL, NULL, XK_J, "j", "J" },

{ NULL, NULL, XK_K, "k", "K" },

{ NULL, NULL, XK_L, "l", "L" },

{ NULL, NULL, XK_colon, ":", NULL },

{ NULL, NULL, XK_at, "@", NULL },

{ NULL, NULL, 0, NULL, NULL }

};

static KeyboardKey _zxcvbnm[] =

{

{ NULL, NULL, XK_Shift_L, "\xe2\x87\xa7", NULL },

{ NULL, NULL, XK_Z, "z", "Z" },

{ NULL, NULL, XK_X, "x", "X" },

{ NULL, NULL, XK_C, "c", "C" },

{ NULL, NULL, XK_V, "v", "V" },

{ NULL, NULL, XK_B, "b", "B" },

{ NULL, NULL, XK_N, "n", "N" },

{ NULL, NULL, XK_M, "m", "M" },

{ NULL, NULL, XK_space, " ", NULL },

{ NULL, NULL, XK_period, ".", NULL },

{ NULL, NULL, XK_minus, "-", NULL },

{ NULL, NULL, XK_slash, "/", NULL },

{ NULL, NULL, 0, NULL, NULL }

};

/* public */

/* functions */

/* keyboard_new */

Keyboard * keyboard_new(KeyboardPrefs * prefs)

{

Keyboard * keyboard;

KeyboardKey * kk;

GdkScreen * screen;

gint height;

GtkWidget * vbox;

GtkWidget * hbox;

GtkWidget * widget;

GtkWidget * label;

size_t i;

size_t j;

if((keyboard = malloc(sizeof(*keyboard))) == NULL)

return NULL;

keyboard->layout[0] = _1234567890;

keyboard->layout[1] = _qwertyuiop;

keyboard->layout[2] = _asdfghjkl;

keyboard->layout[3] = _zxcvbnm;

/* window */

keyboard->window = gtk_window_new(GTK_WINDOW_POPUP);

gtk_window_set_accept_focus(GTK_WINDOW(keyboard->window), FALSE);

gtk_window_set_focus_on_map(GTK_WINDOW(keyboard->window), FALSE);

screen = gdk_screen_get_default();

if(prefs != NULL && prefs->monitor > 0

&& prefs->monitor < gdk_screen_get_n_monitors(screen))

gdk_screen_get_monitor_geometry(screen, prefs->monitor,

&keyboard->geometry);

else

gdk_screen_get_monitor_geometry(screen, 0, &keyboard->geometry);

height = (keyboard->geometry.width / 12) * 3;

gtk_widget_set_size_request(keyboard->window, keyboard->geometry.width,

height);

gtk_window_move(GTK_WINDOW(keyboard->window), keyboard->geometry.x,

keyboard->geometry.y + keyboard->geometry.height

- height);

g_signal_connect_swapped(G_OBJECT(keyboard->window), "delete-event",

G_CALLBACK(on_keyboard_delete_event), keyboard);

/* layouts */

if(prefs->font != NULL)

keyboard->bold = pango_font_description_from_string(

prefs->font);

else

keyboard->bold = pango_font_description_new();

pango_font_description_set_weight(keyboard->bold, PANGO_WEIGHT_BOLD);

vbox = gtk_vbox_new(TRUE, 4);

for(i = 0; i < 4; i++)

{

hbox = gtk_hbox_new(TRUE, 4);

for(j = 0; keyboard->layout[i][j].label != NULL; j++)

{

kk = &keyboard->layout[i][j];

if(kk->keysym == XK_Shift_L || kk->keysym == XK_Shift_R)

widget = gtk_toggle_button_new();

else

widget = gtk_button_new();

label = gtk_label_new(kk->label);

kk->widget = label;

gtk_widget_modify_font(label, keyboard->bold);

gtk_container_add(GTK_CONTAINER(widget), label);

g_object_set_data(G_OBJECT(widget), "key", kk);

g_signal_connect(G_OBJECT(widget), "button-press-event",

G_CALLBACK(on_keyboard_key_pressed),

keyboard);

g_signal_connect(G_OBJECT(widget),

"button-release-event", G_CALLBACK(

on_keyboard_key_released),

keyboard);

g_signal_connect_swapped(G_OBJECT(widget), "clicked",

G_CALLBACK(on_keyboard_key_clicked),

keyboard);

gtk_box_pack_start(GTK_BOX(hbox), widget, TRUE, TRUE,

0);

}

gtk_box_pack_start(GTK_BOX(vbox), hbox, TRUE, TRUE, 0);

}

gtk_container_add(GTK_CONTAINER(keyboard->window), vbox);

gtk_widget_show_all(keyboard->window);

return keyboard;

}

/* keyboard_delete */

void keyboard_delete(Keyboard * keyboard)

{

gtk_widget_destroy(keyboard->window);

pango_font_description_free(keyboard->bold);

free(keyboard);

}

/* accessors */

/* keyboard_set_case */

void keyboard_set_case(Keyboard * keyboard, KeyboardCase kcase)

{

size_t i;

size_t j;

GtkWidget * label;

for(i = 0; i < 4; i++)

for(j = 0; keyboard->layout[i][j].label != NULL; j++)

{

if(keyboard->layout[i][j].upper_label == NULL)

continue;

label = keyboard->layout[i][j].widget;

gtk_label_set_text(GTK_LABEL(label), (kcase == KC_LOWER)

? keyboard->layout[i][j].label

: keyboard->layout[i][j].upper_label);

}

/* useful */

/* keyboard_show */

void keyboard_show(Keyboard * keyboard, gboolean show)

{

if(show == TRUE)

gtk_widget_show(keyboard->window);

else

gtk_widget_hide(keyboard->window);

}

/* keyboard_key_show */

void keyboard_key_show(Keyboard * keyboard, KeyboardKey * key, gboolean show)

{

GtkWidget * widget;

unsigned int bwidth;

unsigned int bheight;

size_t i;

size_t j;

if(show == FALSE)

{

if(key->popup != NULL)

gtk_widget_destroy(key->popup);

key->popup = NULL;

return;

}

if(key->popup == NULL)

{

key->popup = gtk_window_new(GTK_WINDOW_POPUP);

widget = gtk_button_new_with_label(key->upper_label != NULL?

key->upper_label : key->label);

gtk_widget_modify_font(gtk_bin_get_child(GTK_BIN(widget)),

keyboard->bold);

bwidth = keyboard->geometry.width / 12;

bheight = (bwidth / 4) * 3;

gtk_widget_set_size_request(key->popup, bwidth, bheight * 2);

gtk_container_add(GTK_CONTAINER(key->popup), widget);

}

for(i = 0; i < 4; i++)

{

for(j = 0; keyboard->layout[i][j].label != NULL; j++)

if(&keyboard->layout[i][j] == key)

break;

if(keyboard->layout[i][j].label != NULL)

break;

}

if(i == 4 && j == 12) /* XXX hard-coded */

{

i = 0;

j = 5;

}

gtk_window_move(GTK_WINDOW(key->popup), bwidth * j,

keyboard->geometry.height - (bheight * 6)

+ (bheight * i));

gtk_widget_show_all(key->popup);

}