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/* picture.c: GTK+ routines to draw the keyboard picture
Copyright (c) 2002-2005 Philip Kendall
$Id: picture.c 4090 2009-09-03 12:06:32Z fredm $
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.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
Author contact information:
E-mail: philip-fuse@shadowmagic.org.uk
*/
#include <config.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>
#include <libspectrum.h>
#include "display.h"
#include "fuse.h"
#include "gtkinternals.h"
#include "ui/ui.h"
#include "utils.h"
/* An RGB image of the keyboard picture */
static guchar picture[ DISPLAY_SCREEN_HEIGHT * DISPLAY_ASPECT_WIDTH * 4 ];
static const gint picture_pitch = DISPLAY_ASPECT_WIDTH * 4;
static int dialog_created = 0;
static int read_screen( const char *filename, utils_file *screen );
static void draw_screen( libspectrum_byte *screen, int border );
static gint
picture_expose( GtkWidget *widget, GdkEvent *event, gpointer data );
static GtkWidget *dialog;
int
gtkui_picture( const char *filename, int border )
{
utils_file screen;
GtkWidget *drawing_area;
if( !dialog_created ) {
if( read_screen( filename, &screen ) ) {
return 1;
}
draw_screen( screen.buffer, border );
if( utils_close_file( &screen ) ) {
return 1;
}
dialog = gtkstock_dialog_new( "Fuse - Keyboard",
GTK_SIGNAL_FUNC( gtk_widget_hide ) );
drawing_area = gtk_drawing_area_new();
gtk_drawing_area_size( GTK_DRAWING_AREA( drawing_area ),
DISPLAY_ASPECT_WIDTH, DISPLAY_SCREEN_HEIGHT );
gtk_signal_connect( GTK_OBJECT( drawing_area ),
"expose_event", GTK_SIGNAL_FUNC( picture_expose ),
NULL );
gtk_container_add( GTK_CONTAINER( GTK_DIALOG( dialog )->vbox ),
drawing_area );
gtkstock_create_close( dialog, NULL, GTK_SIGNAL_FUNC( gtk_widget_hide ),
FALSE );
/* Stop users resizing this window */
gtk_window_set_policy( GTK_WINDOW( dialog ), FALSE, FALSE, TRUE );
dialog_created = 1;
}
gtk_widget_show_all( dialog );
return 0;
}
static int
read_screen( const char *filename, utils_file *screen )
{
int error;
compat_fd fd;
fd = utils_find_auxiliary_file( filename, UTILS_AUXILIARY_LIB );
if( fd == COMPAT_FILE_OPEN_FAILED ) {
ui_error( UI_ERROR_ERROR, "couldn't find keyboard picture ('%s')",
filename );
return 1;
}
error = utils_read_fd( fd, filename, screen );
if( error ) return error;
if( screen->length != 6912 ) {
utils_close_file( screen );
ui_error( UI_ERROR_ERROR, "keyboard picture ('%s') is not 6912 bytes long",
filename );
return 1;
}
return 0;
}
static void
draw_screen( libspectrum_byte *screen, int border )
{
int i, x, y, ink, paper;
libspectrum_byte attr, data;
for( y=0; y < DISPLAY_BORDER_HEIGHT; y++ ) {
for( x=0; x < DISPLAY_ASPECT_WIDTH; x++ ) {
*(libspectrum_dword*)( picture + y * picture_pitch + 4 * x ) =
gtkdisplay_colours[border];
*(libspectrum_dword*)(
picture +
( y + DISPLAY_BORDER_HEIGHT + DISPLAY_HEIGHT ) * picture_pitch +
4 * x
) = gtkdisplay_colours[ border ];
}
}
for( y=0; y<DISPLAY_HEIGHT; y++ ) {
for( x=0; x < DISPLAY_BORDER_ASPECT_WIDTH; x++ ) {
*(libspectrum_dword*)
(picture + ( y + DISPLAY_BORDER_HEIGHT) * picture_pitch + 4 * x) =
gtkdisplay_colours[ border ];
*(libspectrum_dword*)(
picture +
( y + DISPLAY_BORDER_HEIGHT ) * picture_pitch +
4 * ( x+DISPLAY_ASPECT_WIDTH-DISPLAY_BORDER_ASPECT_WIDTH )
) = gtkdisplay_colours[ border ];
}
for( x=0; x < DISPLAY_WIDTH_COLS; x++ ) {
attr = screen[ display_attr_start[y] + x ];
ink = ( attr & 0x07 ) + ( ( attr & 0x40 ) >> 3 );
paper = ( attr & ( 0x0f << 3 ) ) >> 3;
data = screen[ display_line_start[y]+x ];
for( i=0; i<8; i++ ) {
*(libspectrum_dword*)(
picture +
( y + DISPLAY_BORDER_HEIGHT ) * picture_pitch +
4 * ( 8 * x + DISPLAY_BORDER_ASPECT_WIDTH + i )
) = ( data & 0x80 ) ? gtkdisplay_colours[ ink ]
: gtkdisplay_colours[ paper ];
data <<= 1;
}
}
}
}
static gint
picture_expose( GtkWidget *widget, GdkEvent *event, gpointer data GCC_UNUSED )
{
int x = event->expose.area.x, y = event->expose.area.y;
gdk_draw_rgb_32_image( widget->window,
widget->style->fg_gc[ GTK_STATE_NORMAL ],
x, y,
event->expose.area.width, event->expose.area.height,
GDK_RGB_DITHER_NONE,
picture + y * picture_pitch + 4 * x, picture_pitch );
return TRUE;
}
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