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/* -*-c-*- -------------- mixgtk_mixal.c :
* Implementation of the functions declared in mixgtk_mixal.h
* ------------------------------------------------------------------
* Last change: Time-stamp: "01/04/01 15:23:18 jose"
* ------------------------------------------------------------------
* Copyright (C) 2001 Free Software Foundation, Inc.
*
* 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 <stdlib.h>
#include <string.h>
#include "mixgtk_widgets.h"
#include "mixgtk_mixal.h"
static mix_vm_t *vm_;
static GtkCList *clist_;
static GdkColor sel_color_;
static GdkColor break_color_;
static GdkColor plain_color_;
static gulong lineno_;
#define SEL_COLOR_ "lightgrey"
#define BREAK_COLOR_ "red"
#define PLAIN_COLOR_ "white"
static gboolean
init_color_ (GdkColor *c, const gchar *name)
{
static GdkColormap *cmap = NULL;
if (!cmap) cmap = gtk_widget_get_colormap (GTK_WIDGET (clist_));
return (gdk_color_parse (name, c) &&
gdk_colormap_alloc_color (cmap, c, FALSE, TRUE));
}
/* initialise the mixal widgets */
gboolean
mixgtk_mixal_init (mix_vm_t *vm)
{
g_return_val_if_fail (vm != NULL, FALSE);
vm_ = vm;
clist_ = GTK_CLIST (mixgtk_widget_factory_get (MIXGTK_WIDGET_MIXAL));
g_return_val_if_fail (clist_ != NULL, FALSE);
/* allocate colors */
g_return_val_if_fail (init_color_ (&sel_color_, SEL_COLOR_), FALSE);
g_return_val_if_fail (init_color_ (&break_color_, BREAK_COLOR_), FALSE);
g_return_val_if_fail (init_color_ (&plain_color_, PLAIN_COLOR_), FALSE);
return TRUE;
}
/* load the corresponding mixal file */
void
mixgtk_mixal_load_file (void)
{
enum {ADDR_SIZE = 20, CONT_SIZE = 200};
static gchar ADDR[ADDR_SIZE], CONT[CONT_SIZE];
static gchar *TEXT[] = {ADDR, CONT};
static gchar *NULL_TEXT[] = {NULL, NULL};
const mix_src_file_t *file;
g_assert (vm_);
g_assert (clist_);
gtk_clist_clear (clist_);
file = mix_vm_get_src_file (vm_);
if (file != NULL)
{
gint k;
mix_address_t addr;
lineno_ = mix_src_file_get_line_no (file);
gtk_clist_freeze (clist_);
for (k = 0; k < lineno_; ++k)
{
const gchar *line = mix_src_file_get_line (file, k + 1);
snprintf (CONT, CONT_SIZE, "%03d: %s", k + 1, line);
addr = mix_vm_get_lineno_address (vm_, k + 1);
if (addr != MIX_VM_CELL_NO)
{
sprintf (ADDR, "%04d: ", mix_short_magnitude (addr));
mix_word_print_to_buffer (mix_vm_get_addr_contents (vm_, addr),
ADDR + strlen (ADDR));
}
else
ADDR[0] = '\0';
gtk_clist_append (clist_, TEXT);
gtk_clist_set_row_data (clist_, k, GINT_TO_POINTER
(mix_short_magnitude (addr)));
}
gtk_clist_append (clist_, NULL_TEXT);
gtk_clist_set_row_data (clist_, k, GINT_TO_POINTER (MIX_VM_CELL_NO));
gtk_clist_unselect_row (clist_, 0, 0);
gtk_clist_thaw (clist_);
}
else
lineno_ = 0;
}
/* update the widgets */
static void
reset_bg_ (gint row)
{
gint addr = GPOINTER_TO_INT (gtk_clist_get_row_data (clist_, row));
gboolean isset = mix_vm_has_breakpoint_at_address (vm_, addr);
gtk_clist_set_background (clist_, row,
isset ? &break_color_ : &plain_color_);
}
static void
select_row_ (gint row)
{
static gint last = -1;
gtk_clist_set_background (clist_, row, &sel_color_);
if (gtk_clist_row_is_visible (clist_, row) != GTK_VISIBILITY_FULL)
gtk_clist_moveto (clist_, row, 0, 0.25, 0);
if (last != -1 && last != row) reset_bg_ (last);
last = row;
}
void
mixgtk_mixal_update (void)
{
gint addr = 0;
gint k = 0;
g_assert (vm_);
g_assert (clist_);
addr = mix_short_magnitude (mix_vm_get_prog_count (vm_));
k = gtk_clist_find_row_from_data (clist_, GINT_TO_POINTER (addr));
select_row_ (k);
}
/* breakpoints */
void
mixgtk_mixal_update_bp_at_address (guint addr)
{
gint k;
g_assert (vm_);
g_assert (clist_);
k = gtk_clist_find_row_from_data (clist_, GINT_TO_POINTER (addr));
reset_bg_ (k);
}
void
mixgtk_mixal_update_bp_at_line (guint line)
{
if ( line < 1 ) return;
while (line < lineno_)
{
gint addr = GPOINTER_TO_INT (gtk_clist_get_row_data (clist_, line - 1));
if (addr != MIX_VM_CELL_NO) break;
++line;
}
reset_bg_ (line - 1);
}
void
mixgtk_mixal_update_bp_all ()
{
gint k, addr;
for (k = 0; k < lineno_; ++k) reset_bg_ (k);
addr = mix_vm_get_prog_count (vm_);
k = gtk_clist_find_row_from_data (clist_, GINT_TO_POINTER (addr));
select_row_ (k);
}
/* callbacks */
void
on_mixal_select_row (GtkWidget *w, gint row, gint col, GdkEventButton *e,
gpointer data)
{
gboolean isset;
gint addr, pc;
gtk_clist_unselect_row (clist_, row, col);
addr = GPOINTER_TO_INT (gtk_clist_get_row_data (clist_, row));
pc = mix_vm_get_prog_count (vm_);
if (addr < MIX_VM_CELL_NO && addr != pc)
{
isset = mix_vm_has_breakpoint_at_address (vm_, addr);
if (isset)
mix_vm_clear_breakpoint_address (vm_, addr);
else
mix_vm_set_breakpoint_address (vm_, addr);
reset_bg_ (row);
}
}
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