nexmon – Rev 1
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/* bytes_view.c
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* 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.
*/
/* Code based on:
* xtext, the text widget used by X-Chat. Peter Zelezny <zed@xchat.org>.
* GtkTextView. Copyright (C) 2000 Red Hat, Inc.
* GtkHex. Jaka Mocnik <jaka@gnu.org>.
* pango-layout.c: High-level layout driver. Copyright (C) 2000, 2001, 2006 Red Hat Software
*/
#include "config.h"
#include <gtk/gtk.h>
#include "ui/gtk/old-gtk-compat.h"
#include <string.h>
#include <stddef.h>
#include <epan/wmem/wmem.h>
#include <epan/charsets.h>
#include <epan/packet.h>
#include "ui/recent.h"
#define MARGIN 2
#define REFRESH_TIMEOUT 10
static GtkWidgetClass *parent_class = NULL;
struct _BytesView
{
GtkWidget widget;
PangoContext *context;
PangoFontDescription *font;
int font_ascent;
int font_descent;
int fontsize;
GtkAdjustment *vadj;
GtkAdjustment *hadj;
#if GTK_CHECK_VERSION(3, 0, 0)
guint hscroll_policy : 1;
guint vscroll_policy : 1;
#endif
gint adj_tag;
int max_width;
gboolean bold_highlight;
int state;
/* data */
packet_char_enc encoding; /* ASCII or EBCDIC */
bytes_view_type format; /* bytes in hex or bytes as bits */
guint8 *pd; /* packet data */
int len; /* length of packet data in bytes */
/* data-highlight (field, appendix, protocol) */
int start[3];
int end[3];
int per_line; /* number of bytes shown per line */
int use_digits; /* number of hex digits of byte offset */
};
#include "bytes_view.h"
typedef struct _BytesViewClass
{
GtkWidgetClass parent_class;
void (*set_scroll_adjustments)(BytesView *, GtkAdjustment *, GtkAdjustment *);
} BytesViewClass;
static void bytes_view_set_scroll_adjustments(BytesView *, GtkAdjustment *, GtkAdjustment *);
static void bytes_view_adjustment_set(BytesView *);
static void
bytes_view_init(BytesView *bv)
{
#ifdef WANT_PACKET_EDITOR
gtk_widget_set_can_focus(GTK_WIDGET(bv), TRUE);
#endif
bv->context = NULL;
bv->encoding = PACKET_CHAR_ENC_CHAR_ASCII;
bv->format = BYTES_HEX;
bv->per_line = 16;
bv->use_digits = 4;
bv->max_width = 0;
}
static void
bytes_view_destroy(BytesView *bv)
{
if (bv->pd) {
g_free(bv->pd);
bv->pd = NULL;
}
if (bv->adj_tag) {
g_source_remove(bv->adj_tag);
bv->adj_tag = 0;
}
if (bv->vadj) {
g_object_unref(G_OBJECT(bv->vadj));
bv->vadj = NULL;
}
if (bv->hadj) {
g_object_unref(G_OBJECT(bv->hadj));
bv->hadj = NULL;
}
if (bv->font) {
pango_font_description_free(bv->font);
bv->font = NULL;
}
if (bv->context) {
g_object_unref(bv->context);
bv->context = NULL;
}
}
#if GTK_CHECK_VERSION(3, 0, 0)
static void
bytes_view_destroy_widget(GtkWidget *widget)
{
bytes_view_destroy(BYTES_VIEW(widget));
GTK_WIDGET_CLASS(parent_class)->destroy(widget);
}
#else
static void
bytes_view_destroy_object(GtkObject *object)
{
bytes_view_destroy(BYTES_VIEW(object));
if (GTK_OBJECT_CLASS(parent_class)->destroy)
(*GTK_OBJECT_CLASS(parent_class)->destroy)(object);
}
#endif
static void
bytes_view_ensure_layout(BytesView *bv)
{
if (bv->context == NULL) {
bv->context = gtk_widget_get_pango_context(GTK_WIDGET(bv));
g_object_ref(bv->context);
{
PangoLanguage *lang;
PangoFontMetrics *metrics;
/* vte and xchat does it this way */
lang = pango_context_get_language(bv->context);
metrics = pango_context_get_metrics(bv->context, bv->font, lang);
bv->font_ascent = pango_font_metrics_get_ascent(metrics) / PANGO_SCALE;
bv->font_descent = pango_font_metrics_get_descent(metrics) / PANGO_SCALE;
pango_font_metrics_unref(metrics);
bv->fontsize = bv->font_ascent + bv->font_descent;
}
g_assert(bv->context);
bytes_view_adjustment_set(bv);
}
}
static void
bytes_view_realize(GtkWidget *widget)
{
BytesView *bv;
GdkWindowAttr attributes;
GtkAllocation allocation;
GdkWindow *win;
#if GTK_CHECK_VERSION(3, 0, 0)
GtkStyleContext *context;
#endif
_gtk_widget_set_realized_true(widget);
bv = BYTES_VIEW(widget);
gtk_widget_get_allocation(widget, &allocation);
attributes.window_type = GDK_WINDOW_CHILD;
attributes.x = allocation.x;
attributes.y = allocation.y;
attributes.width = allocation.width;
attributes.height = allocation.height;
attributes.wclass = GDK_INPUT_OUTPUT;
attributes.visual = gtk_widget_get_visual(widget);
attributes.event_mask = gtk_widget_get_events(widget) | GDK_EXPOSURE_MASK | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK | GDK_POINTER_MOTION_MASK;
#if !GTK_CHECK_VERSION(3, 0, 0)
attributes.colormap = gtk_widget_get_colormap(widget);
win = gdk_window_new(gtk_widget_get_parent_window(widget), &attributes, GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP);
#else
win = gdk_window_new(gtk_widget_get_parent_window(widget), &attributes, GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL);
#endif
gtk_widget_set_window(widget, win);
#if GTK_CHECK_VERSION(3, 8, 0)
gtk_widget_register_window(widget, win);
#else
gdk_window_set_user_data(win, widget);
#endif
#if !GTK_CHECK_VERSION(3, 0, 0) /* XXX, check */
gdk_window_set_back_pixmap(win, NULL, FALSE);
#endif
#if GTK_CHECK_VERSION(3, 0, 0)
context = gtk_widget_get_style_context(widget);
gtk_style_context_add_class(context, GTK_STYLE_CLASS_VIEW);
/* gtk_style_context_add_class(context, GTK_STYLE_CLASS_ENTRY); */
#elif GTK_CHECK_VERSION(2, 20, 0)
gtk_widget_style_attach(widget);
#else
widget->style = gtk_style_attach(widget->style, win);
#endif
bytes_view_ensure_layout(bv);
}
static void
bytes_view_unrealize(GtkWidget *widget)
{
BytesView *bv = BYTES_VIEW(widget);
if (bv->context) {
g_object_unref(bv->context);
bv->context = NULL;
}
/* if there are still events in the queue, this'll avoid segfault */
#if !GTK_CHECK_VERSION(3, 8, 0)
gdk_window_set_user_data(gtk_widget_get_window(widget), NULL);
#endif
if (parent_class->unrealize)
(*GTK_WIDGET_CLASS(parent_class)->unrealize)(widget);
}
static GtkAdjustment *
bytes_view_ensure_vadj(BytesView *bv)
{
if (bv->vadj == NULL) {
bytes_view_set_scroll_adjustments(bv, bv->hadj, bv->vadj);
g_assert(bv->vadj != NULL);
}
return bv->vadj;
}
static GtkAdjustment *
bytes_view_ensure_hadj(BytesView *bv)
{
if (bv->hadj == NULL) {
bytes_view_set_scroll_adjustments(bv, bv->hadj, bv->vadj);
g_assert(bv->hadj != NULL);
}
return bv->hadj;
}
static gboolean
bytes_view_scroll(GtkWidget *widget, GdkEventScroll *event)
{
BytesView *bv = BYTES_VIEW(widget);
gdouble new_value;
if (event->direction == GDK_SCROLL_UP) { /* mouse wheel pageUp */
bytes_view_ensure_vadj(bv);
new_value = gtk_adjustment_get_value(bv->vadj) - (gtk_adjustment_get_page_increment(bv->vadj) / 10);
if (new_value < gtk_adjustment_get_lower(bv->vadj))
new_value = gtk_adjustment_get_lower(bv->vadj);
gtk_adjustment_set_value(bv->vadj, new_value);
} else if (event->direction == GDK_SCROLL_DOWN) { /* mouse wheel pageDn */
bytes_view_ensure_vadj(bv);
new_value = gtk_adjustment_get_value(bv->vadj) + (gtk_adjustment_get_page_increment(bv->vadj) / 10);
if (new_value > (gtk_adjustment_get_upper(bv->vadj) - gtk_adjustment_get_page_size(bv->vadj)))
new_value = gtk_adjustment_get_upper(bv->vadj) - gtk_adjustment_get_page_size(bv->vadj);
gtk_adjustment_set_value(bv->vadj, new_value);
}
return FALSE;
}
static void
bytes_view_allocate(GtkWidget *widget, GtkAllocation *allocation)
{
gtk_widget_set_allocation(widget, allocation);
if (gtk_widget_get_realized(widget)) {
BytesView *bv = BYTES_VIEW(widget);
gdk_window_move_resize(gtk_widget_get_window(widget), allocation->x, allocation->y, allocation->width, allocation->height);
bytes_view_adjustment_set(bv);
}
}
#if GTK_CHECK_VERSION(3, 0, 0)
static void
bytes_view_get_preferred_width(GtkWidget *widget _U_, gint *minimum, gint *natural)
{
*minimum = *natural = 200;
}
static void
bytes_view_get_preferred_height(GtkWidget *widget _U_, gint *minimum, gint *natural)
{
*minimum = *natural = 90;
}
#else
static void
bytes_view_size_request(GtkWidget *widget _U_, GtkRequisition *requisition)
{
requisition->width = 200;
requisition->height = 90;
}
#endif
static GSList *
_pango_runs_build(BytesView *bv, const char *str, int len)
{
GSList *runs = NULL;
PangoAttrList *attrs;
PangoAttrIterator *iter;
GList *run_list;
GList *tmp_list;
attrs = pango_attr_list_new();
pango_attr_list_insert_before(attrs, pango_attr_font_desc_new(bv->font));
iter = pango_attr_list_get_iterator(attrs);
run_list = pango_itemize(bv->context, str, 0, len, attrs, iter);
for (tmp_list = run_list; tmp_list; tmp_list = tmp_list->next) {
PangoLayoutRun *run = g_slice_new(PangoLayoutRun);
PangoItem *run_item = (PangoItem *)tmp_list->data;
run->item = run_item;
/* XXX pango_layout_get_item_properties(run_item, &state->properties); */
run->glyphs = pango_glyph_string_new();
pango_shape(str + run_item->offset, run_item->length, &run_item->analysis, run->glyphs);
runs = g_slist_prepend(runs, run);
}
g_list_free(run_list);
pango_attr_iterator_destroy(iter);
pango_attr_list_unref(attrs);
return g_slist_reverse(runs);
}
static int
_pango_glyph_string_to_pixels(PangoGlyphString *glyphs, PangoFont *font _U_)
{
#if PANGO_VERSION_MAJOR == 1 && PANGO_VERSION_MINOR >= 14
return pango_glyph_string_get_width(glyphs) / PANGO_SCALE;
#else
PangoRectangle logical_rect;
pango_glyph_string_extents(glyphs, font, NULL, &logical_rect);
/* pango_extents_to_pixels(&logical_rect, NULL); */
return (logical_rect.width / PANGO_SCALE);
#endif
}
static int
xtext_draw_layout_line(cairo_t *cr, gint x, gint y, GSList *runs)
{
while (runs) {
PangoLayoutRun *run = (PangoLayoutRun *)runs->data;
cairo_move_to(cr, x, y);
pango_cairo_show_glyph_string(cr, run->item->analysis.font, run->glyphs);
x += _pango_glyph_string_to_pixels(run->glyphs, run->item->analysis.font);
runs = runs->next;
}
return x;
}
static int
_pango_runs_width(GSList *runs)
{
int width = 0;
while (runs) {
PangoLayoutRun *run = (PangoLayoutRun *)runs->data;
width += _pango_glyph_string_to_pixels(run->glyphs, run->item->analysis.font);
runs = runs->next;
}
return width;
}
static void
_pango_runs_free(GSList *runs)
{
GSList *list = runs;
while (list) {
PangoLayoutRun *run = (PangoLayoutRun *)list->data;
pango_item_free(run->item);
pango_glyph_string_free(run->glyphs);
g_slice_free(PangoLayoutRun, run);
list = list->next;
}
g_slist_free(runs);
}
typedef int bytes_view_line_cb(BytesView *, void *data, int x, int arg1, const char *str, int len);
static int
bytes_view_flush_render(BytesView *bv, void *data, int x, int y, const char *str, int len)
{
cairo_t *cr = (cairo_t *)data;
GSList *line_runs;
int str_width;
#if GTK_CHECK_VERSION(3, 0, 0)
GtkStyleContext *context;
GdkRGBA bg_color, fg_color;
#endif
if (len < 1)
return 0;
line_runs = _pango_runs_build(bv, str, len);
/* XXX, cliping */
#if GTK_CHECK_VERSION(3, 0, 0)
context = gtk_widget_get_style_context(GTK_WIDGET(bv));
#endif
if (bv->state == GTK_STATE_SELECTED || bv->state == GTK_STATE_INSENSITIVE) {
str_width = _pango_runs_width(line_runs);
/* background */
#if GTK_CHECK_VERSION(3, 0, 0)
gtk_style_context_get_background_color(context, (GtkStateFlags)( (bv->state == GTK_STATE_SELECTED ? GTK_STATE_FLAG_FOCUSED : 0) | GTK_STATE_FLAG_SELECTED), &bg_color);
gdk_cairo_set_source_rgba(cr, &bg_color);
#else
gdk_cairo_set_source_color(cr, >k_widget_get_style(GTK_WIDGET(bv))->base[bv->state]);
#endif
cairo_rectangle(cr, x, y - bv->font_ascent, str_width, bv->fontsize);
cairo_fill(cr);
}
/* text */
#if GTK_CHECK_VERSION(3, 0, 0)
gtk_style_context_get_color(context, (GtkStateFlags)(GTK_STATE_FLAG_FOCUSED | (bv->state == GTK_STATE_SELECTED ? GTK_STATE_FLAG_SELECTED : GTK_STATE_FLAG_NORMAL)), &fg_color);
gdk_cairo_set_source_rgba(cr, &fg_color);
#else
gdk_cairo_set_source_color(cr, >k_widget_get_style(GTK_WIDGET(bv))->text[bv->state]);
#endif
str_width = xtext_draw_layout_line(cr, x, y, line_runs)-x;
_pango_runs_free(line_runs);
return str_width;
}
static int
_pango_runs_find_index(GSList *runs, int x_pos, const char *str)
{
int start_pos = 0;
while (runs) {
PangoLayoutRun *run = (PangoLayoutRun *)runs->data;
int width;
width = _pango_glyph_string_to_pixels(run->glyphs, run->item->analysis.font);
if (x_pos >= start_pos && x_pos < start_pos + width) {
gboolean char_trailing;
int pos;
pango_glyph_string_x_to_index(run->glyphs,
(char *) str + run->item->offset, run->item->length,
&run->item->analysis,
(x_pos - start_pos) * PANGO_SCALE,
&pos, &char_trailing);
return run->item->offset + pos;
}
start_pos += width;
runs = runs->next;
}
return -1;
}
static int
bytes_view_flush_pos(BytesView *bv, void *data, int x, int search_x, const char *str, int len)
{
int *pos_x = (int *)data;
GSList *line_runs;
int line_width;
if (len < 1)
return 0;
line_runs = _pango_runs_build(bv, str, len);
line_width = _pango_runs_width(line_runs);
if (x <= search_x && x + line_width > search_x) {
int off_x = search_x - x;
int pos_run;
if ((pos_run = _pango_runs_find_index(line_runs, off_x, str)) != -1)
*pos_x = (-*pos_x) + pos_run;
return -1; /* terminate */
} else
*pos_x -= len;
_pango_runs_free(line_runs);
return line_width;
}
static void
bytes_view_render_state(BytesView *bv, int state)
{
g_assert(state == GTK_STATE_NORMAL || state == GTK_STATE_SELECTED || state == GTK_STATE_INSENSITIVE);
if (bv->bold_highlight) {
pango_font_description_set_weight(bv->font,
(state == GTK_STATE_SELECTED) ? PANGO_WEIGHT_BOLD : PANGO_WEIGHT_NORMAL);
bv->state = GTK_STATE_NORMAL;
} else
bv->state = state;
}
#define BYTE_VIEW_SEP 8 /* insert a space every BYTE_VIEW_SEP bytes */
static void
_bytes_view_line_common(BytesView *bv, void *data, const int org_off, int xx, int arg1, bytes_view_line_cb flush)
{
static const guchar hexchars[16] = {
'0', '1', '2', '3', '4', '5', '6', '7',
'8', '9', 'a', 'b', 'c', 'd', 'e', 'f' };
const guint8 *pd = bv->pd;
const int len = bv->len;
int state;
char str[128];
int cur = 0;
int off;
guchar c;
int byten;
int j;
int scroll_x;
int dx;
g_assert(org_off >= 0);
scroll_x = (int) gtk_adjustment_get_value(bytes_view_ensure_hadj(bv));
state = GTK_STATE_NORMAL;
bytes_view_render_state(bv, GTK_STATE_NORMAL);
/* Print the line number */
j = bv->use_digits;
do {
j--;
c = (org_off >> (j*4)) & 0xF;
str[cur++] = hexchars[c];
} while (j != 0);
str[cur++] = ' ';
str[cur++] = ' ';
/* Print the hex bit */
for (byten = 0, off = org_off; byten < bv->per_line; byten++) {
gboolean byte_highlighted =
(off >= bv->start[0] && off < bv->end[0]) ||
(off >= bv->start[1] && off < bv->end[1]);
gboolean proto_byte_highlighted =
(off >= bv->start[2] && off < bv->end[2]);
int state_cur = (off < len && byte_highlighted) ?
GTK_STATE_SELECTED :
(off < len && proto_byte_highlighted) ?
GTK_STATE_INSENSITIVE :
GTK_STATE_NORMAL;
if (state_cur != state) {
/* ok, we want to put space, we prefer to put it in STATE_NORMAL or STATE_INSENSITIVE */
int space_now = (state_cur != GTK_STATE_NORMAL && state_cur != GTK_STATE_INSENSITIVE)
|| state == GTK_STATE_NORMAL;
if (space_now && byten) {
str[cur++] = ' ';
/* insert a space every BYTE_VIEW_SEP bytes */
if ((off % BYTE_VIEW_SEP) == 0)
str[cur++] = ' ';
}
if ((dx = flush(bv, data, xx - scroll_x, arg1, str, cur)) < 0)
return;
xx += dx;
cur = 0;
bytes_view_render_state(bv, state_cur);
state = state_cur;
if (!space_now && byten) {
str[cur++] = ' ';
/* insert a space every BYTE_VIEW_SEP bytes */
if ((off % BYTE_VIEW_SEP) == 0)
str[cur++] = ' ';
}
} else if (byten) {
str[cur++] = ' ';
/* insert a space every BYTE_VIEW_SEP bytes */
if ((off % BYTE_VIEW_SEP) == 0)
str[cur++] = ' ';
}
if (off < len) {
switch (bv->format) {
case BYTES_HEX:
str[cur++] = hexchars[(pd[off] & 0xf0) >> 4];
str[cur++] = hexchars[pd[off] & 0x0f];
break;
case BYTES_BITS:
/* XXX, bitmask */
for (j = 7; j >= 0; j--)
str[cur++] = (pd[off] & (1 << j)) ? '1' : '0';
break;
}
} else {
switch (bv->format) {
case BYTES_HEX:
str[cur++] = ' ';
str[cur++] = ' ';
break;
case BYTES_BITS:
for (j = 7; j >= 0; j--)
str[cur++] = ' ';
break;
}
}
off++;
}
if (state != GTK_STATE_NORMAL) {
if ((dx = flush(bv, data, xx - scroll_x, arg1, str, cur)) < 0)
return;
xx += dx;
cur = 0;
bytes_view_render_state(bv, GTK_STATE_NORMAL);
state = GTK_STATE_NORMAL;
}
/* Print some space at the end of the line */
str[cur++] = ' '; str[cur++] = ' '; str[cur++] = ' ';
/* Print the ASCII bit */
for (byten = 0, off = org_off; byten < bv->per_line; byten++) {
gboolean byte_highlighted =
(off >= bv->start[0] && off < bv->end[0]) ||
(off >= bv->start[1] && off < bv->end[1]);
gboolean proto_byte_highlighted =
(off >= bv->start[2] && off < bv->end[2]);
int state_cur = (off < len && byte_highlighted) ?
GTK_STATE_SELECTED :
(off < len && proto_byte_highlighted) ?
GTK_STATE_INSENSITIVE :
GTK_STATE_NORMAL;
if (state_cur != state) {
int space_now = (state_cur != GTK_STATE_NORMAL && state_cur != GTK_STATE_INSENSITIVE)
|| state == GTK_STATE_NORMAL;
if (space_now && byten) {
/* insert a space every BYTE_VIEW_SEP bytes */
if ((off % BYTE_VIEW_SEP) == 0)
str[cur++] = ' ';
}
if ((dx = flush(bv, data, xx - scroll_x, arg1, str, cur)) < 0)
return;
xx += dx;
cur = 0;
bytes_view_render_state(bv, state_cur);
state = state_cur;
if (!space_now && byten) {
/* insert a space every BYTE_VIEW_SEP bytes */
if ((off % BYTE_VIEW_SEP) == 0)
str[cur++] = ' ';
}
} else if (byten) {
/* insert a space every BYTE_VIEW_SEP bytes */
if ((off % BYTE_VIEW_SEP) == 0)
str[cur++] = ' ';
}
if (off < len) {
c = (bv->encoding == PACKET_CHAR_ENC_CHAR_EBCDIC) ?
EBCDIC_to_ASCII1(pd[off]) :
pd[off];
str[cur++] = g_ascii_isprint(c) ? c : '.';
} else
str[cur++] = ' ';
off++;
}
if (cur) {
if ((dx = flush(bv, data, xx - scroll_x, arg1, str, cur)) < 0)
return;
xx += dx;
/* cur = 0; */
}
if (state != GTK_STATE_NORMAL) {
bytes_view_render_state(bv, GTK_STATE_NORMAL);
/* state = GTK_STATE_NORMAL; */
}
if (bv->max_width < xx)
bv->max_width = xx;
}
static void
_bytes_view_render_line(BytesView *bv, cairo_t *cr, const int org_off, int yy)
{
_bytes_view_line_common(bv, cr, org_off, MARGIN, yy, bytes_view_flush_render);
}
static int
_bytes_view_find_pos(BytesView *bv, const int org_off, int search_x)
{
int pos_x = 0;
_bytes_view_line_common(bv, &pos_x, org_off, MARGIN, search_x, bytes_view_flush_pos);
return pos_x;
}
static void
bytes_view_render(BytesView *bv, cairo_t *cr, GdkRectangle *area)
{
const int old_max_width = bv->max_width;
int width, height;
int y;
int off;
guint line, lines_max;
guint lines_max_full;
#if GTK_CHECK_VERSION(3, 0, 0)
GtkStyleContext *context;
GdkRGBA bg_color;
#endif
if (!gtk_widget_get_realized(GTK_WIDGET(bv)))
return;
bytes_view_ensure_layout(bv);
#if GTK_CHECK_VERSION(3, 0, 0)
width = gtk_widget_get_allocated_width(GTK_WIDGET(bv));
height = gtk_widget_get_allocated_height(GTK_WIDGET(bv));
#elif GTK_CHECK_VERSION(2,24,0)
width = gdk_window_get_width(gtk_widget_get_window(GTK_WIDGET(bv)));
height = gdk_window_get_height(gtk_widget_get_window(GTK_WIDGET(bv)));
#else
ws_gdk_drawable_get_size(gtk_widget_get_window(GTK_WIDGET(bv)), &width, &height);
#endif
if (width < 32 + MARGIN || height < bv->fontsize)
return;
if (area) {
line = area->y / bv->fontsize;
lines_max = 1 + (area->y + area->height) / bv->fontsize;
} else {
line = 0;
lines_max = (guint) -1;
}
/* g_print("from %d to %d\n", line, lines_max); */
y = (bv->fontsize * line);
/* clear */
#if GTK_CHECK_VERSION(3, 0, 0)
context = gtk_widget_get_style_context(GTK_WIDGET(bv));
gtk_style_context_get_background_color(context, (GtkStateFlags)(GTK_STATE_FLAG_FOCUSED | GTK_STATE_FLAG_NORMAL), &bg_color);
gdk_cairo_set_source_rgba(cr, &bg_color);
#else
gdk_cairo_set_source_color(cr, >k_widget_get_style(GTK_WIDGET(bv))->base[GTK_STATE_NORMAL]);
#endif
if (area)
cairo_rectangle(cr, area->x, area->y, area->x + area->width, area->y + area->height);
else
cairo_rectangle(cr, 0, 0, width, height);
cairo_fill(cr);
if (bv->pd) {
guint real_line = line + (guint) gtk_adjustment_get_value(bytes_view_ensure_vadj(bv));
lines_max_full = (height / bv->fontsize) + 1;
if (lines_max_full < lines_max)
lines_max = lines_max_full;
off = real_line * bv->per_line;
while (off < bv->len) {
_bytes_view_render_line(bv, cr, off, y + bv->font_ascent);
line++;
if (line >= lines_max)
break;
off += bv->per_line;
y += bv->fontsize;
}
}
if (old_max_width != bv->max_width)
bytes_view_adjustment_set(bv);
}
static void
bytes_view_render_full(BytesView *bv)
{
cairo_t *cr;
if (bv->adj_tag) {
g_source_remove(bv->adj_tag);
bv->adj_tag = 0;
}
cr = gdk_cairo_create(gtk_widget_get_window(GTK_WIDGET(bv)));
bytes_view_render(bv, cr, NULL);
cairo_destroy(cr);
}
#if GTK_CHECK_VERSION(3, 0, 0)
static gboolean
bytes_view_draw(GtkWidget *widget, cairo_t *cr)
{
GdkRectangle area;
gdk_cairo_get_clip_rectangle(cr, &area);
bytes_view_render(BYTES_VIEW(widget), cr, &area);
return FALSE;
}
#else
static gboolean
bytes_view_expose(GtkWidget *widget, GdkEventExpose *event)
{
BytesView *bv = BYTES_VIEW(widget);
cairo_t *cr;
cr = gdk_cairo_create(gtk_widget_get_window(GTK_WIDGET(bv)));
gdk_cairo_region(cr, event->region);
cairo_clip(cr);
bytes_view_render(bv, cr, &event->area);
cairo_destroy(cr);
return FALSE;
}
#endif
#if !GTK_CHECK_VERSION(2, 14, 0)
static void
_gtk_adjustment_configure(GtkAdjustment *adj,
gdouble value,
gdouble lower,
gdouble upper,
gdouble step_increment,
gdouble page_increment,
gdouble page_size)
{
adj->value = value;
adj->lower = lower;
adj->upper = upper;
adj->step_increment = step_increment;
adj->page_increment = page_increment;
adj->page_size = page_size;
gtk_adjustment_changed(adj);
}
#elif GTK_CHECK_VERSION(3, 0, 0)
#define _gtk_adjustment_configure(adj, val, low, up, step, page, size) \
gtk_adjustment_configure(adj, val, low, MAX((up), (size)), step, page, size)
#else
#define _gtk_adjustment_configure(adj, val, low, up, step, page, size) \
gtk_adjustment_configure(adj, val, low, up, step, page, size)
#endif
static void
bytes_view_adjustment_set(BytesView *bv)
{
GtkAllocation allocation;
double lower, upper, page_size, step_increment, page_increment, value;
if (bv->vadj == NULL || bv->hadj == NULL)
return;
if (bv->context == NULL) {
bytes_view_ensure_layout(bv);
/* bytes_view_ensure_layout will call bytes_view_adjustment_set() again */
return;
}
gtk_widget_get_allocation(GTK_WIDGET(bv), &allocation);
if (bv->vadj) {
lower = 0;
upper = (int) (bv->len / bv->per_line);
if ((bv->len % bv->per_line))
upper++;
page_size = (allocation.height - bv->font_descent) / bv->fontsize;
page_increment = page_size;
step_increment = 1;
value = gtk_adjustment_get_value(bv->vadj);
if (value > upper - page_size)
value = upper - page_size;
if (value < 0)
value = 0;
_gtk_adjustment_configure(bv->vadj, value, lower, upper, step_increment, page_increment, page_size);
}
if (bv->hadj) {
lower = 0;
upper = bv->max_width;
page_size = allocation.width;
page_increment = page_size;
step_increment = page_size / 10.0;
value = gtk_adjustment_get_value(bv->hadj);
if (value > upper - page_size)
value = upper - page_size;
if (value < 0)
value = 0;
_gtk_adjustment_configure(bv->hadj, value, lower, upper, step_increment, page_increment, page_size);
}
}
static gint
bytes_view_adjustment_timeout(BytesView *bv)
{
bv->adj_tag = 0;
bytes_view_render_full(bv);
return 0;
}
static void
bytes_view_adjustment_changed(GtkAdjustment *adj, BytesView *bv)
{
/* delay rendering when scrolling (10ms) */
if (adj && ((adj == bv->vadj) || (adj == bv->hadj))) {
if (!bv->adj_tag)
bv->adj_tag = g_timeout_add(REFRESH_TIMEOUT, (GSourceFunc) bytes_view_adjustment_timeout, bv);
}
}
static void
bytes_view_set_scroll_adjustments(BytesView *bv, GtkAdjustment *hadj, GtkAdjustment *vadj)
{
gboolean need_adjust = FALSE;
g_return_if_fail(!hadj || GTK_IS_ADJUSTMENT(hadj));
g_return_if_fail(!vadj || GTK_IS_ADJUSTMENT(vadj));
if (!vadj)
vadj = GTK_ADJUSTMENT(gtk_adjustment_new(0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (!hadj)
hadj = GTK_ADJUSTMENT(gtk_adjustment_new(0.0, 0.0, 0.0, 0.0, 0.0, 0.0));
if (bv->vadj && (bv->vadj != vadj)) {
g_signal_handlers_disconnect_by_func(bv->vadj, bytes_view_adjustment_changed, bv);
g_object_unref(bv->vadj);
}
if (bv->vadj != vadj) {
bv->vadj = vadj;
g_object_ref_sink(bv->vadj);
g_signal_connect(bv->vadj, "value-changed", G_CALLBACK(bytes_view_adjustment_changed), bv);
need_adjust = TRUE;
#if GTK_CHECK_VERSION(3, 0, 0)
g_object_notify(G_OBJECT(bv), "vadjustment");
#endif
}
if (bv->hadj && (bv->hadj != hadj)) {
g_signal_handlers_disconnect_by_func(bv->hadj, bytes_view_adjustment_changed, bv);
g_object_unref(bv->hadj);
}
if (bv->hadj != hadj) {
bv->hadj = hadj;
g_object_ref_sink(bv->hadj);
g_signal_connect(bv->hadj, "value-changed", G_CALLBACK(bytes_view_adjustment_changed), bv);
need_adjust = TRUE;
#if GTK_CHECK_VERSION(3, 0, 0)
g_object_notify(G_OBJECT(bv), "hadjustment");
#endif
}
if (need_adjust)
bytes_view_adjustment_set(bv);
}
#if GTK_CHECK_VERSION(3, 0, 0)
enum {
PROP_0,
PROP_HADJUSTMENT,
PROP_VADJUSTMENT,
PROP_HSCROLL_POLICY,
PROP_VSCROLL_POLICY
};
static void
bytes_view_set_property(GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
{
BytesView *bv = BYTES_VIEW(object);
switch (prop_id) {
case PROP_HADJUSTMENT:
bytes_view_set_scroll_adjustments(bv, (GtkAdjustment *)g_value_get_object(value), bv->vadj);
break;
case PROP_VADJUSTMENT:
bytes_view_set_scroll_adjustments(bv, bv->hadj, (GtkAdjustment *)g_value_get_object(value));
break;
case PROP_HSCROLL_POLICY:
bv->hscroll_policy = g_value_get_enum(value);
gtk_widget_queue_resize(GTK_WIDGET(bv));
break;
case PROP_VSCROLL_POLICY:
bv->vscroll_policy = g_value_get_enum(value);
gtk_widget_queue_resize(GTK_WIDGET(bv));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
static void
bytes_view_get_property(GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
{
BytesView *bv = BYTES_VIEW(object);
switch (prop_id) {
case PROP_HADJUSTMENT:
g_value_set_object(value, bv->hadj);
break;
case PROP_VADJUSTMENT:
g_value_set_object(value, bv->vadj);
break;
case PROP_HSCROLL_POLICY:
g_value_set_enum(value, bv->hscroll_policy);
break;
case PROP_VSCROLL_POLICY:
g_value_set_enum(value, bv->vscroll_policy);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
break;
}
}
#else
/* bv_VOID__OBJECT_OBJECT() generated by:
* $ echo 'VOID:OBJECT,OBJECT' | glib-genmarshal --prefix=bv --body
* (glib-genmarshal version 2.32.4)
* I *really hope* it's portable over platforms and can be put generated.
*/
static void
bv_VOID__OBJECT_OBJECT(GClosure *closure, GValue *return_value _U_, guint n_params, const GValue *param_values, gpointer hint _U_, gpointer marshal_data)
{
typedef void (*GMarshalFunc_VOID__OBJECT_OBJECT)(gpointer, gpointer, gpointer, gpointer);
register GMarshalFunc_VOID__OBJECT_OBJECT callback;
register GCClosure *cc = (GCClosure*) closure;
register gpointer data1, data2;
g_return_if_fail(n_params == 3);
if (G_CCLOSURE_SWAP_DATA(closure)) {
data1 = closure->data;
data2 = g_value_peek_pointer(param_values + 0);
} else {
data1 = g_value_peek_pointer(param_values + 0);
data2 = closure->data;
}
callback = (GMarshalFunc_VOID__OBJECT_OBJECT) (marshal_data ? marshal_data : cc->callback);
callback(data1, g_value_get_object(param_values + 1), g_value_get_object(param_values + 2), data2);
}
#endif
static void
bytes_view_class_init(BytesViewClass *klass)
{
#if !GTK_CHECK_VERSION(3, 0, 0)
GtkObjectClass *object_class;
#endif
GtkWidgetClass *widget_class;
parent_class = (GtkWidgetClass *) g_type_class_peek_parent(klass);
#if !GTK_CHECK_VERSION(3, 0, 0)
object_class = (GtkObjectClass *) klass;
#endif
widget_class = (GtkWidgetClass *) klass;
#if GTK_CHECK_VERSION(3, 0, 0)
widget_class->destroy = bytes_view_destroy_widget;
#else
object_class->destroy = bytes_view_destroy_object;
#endif
widget_class->realize = bytes_view_realize;
widget_class->unrealize = bytes_view_unrealize;
#if GTK_CHECK_VERSION(3, 0, 0)
widget_class->get_preferred_width = bytes_view_get_preferred_width;
widget_class->get_preferred_height = bytes_view_get_preferred_height;
#else
widget_class->size_request = bytes_view_size_request;
#endif
widget_class->size_allocate = bytes_view_allocate;
#if GTK_CHECK_VERSION(3, 0, 0)
widget_class->draw = bytes_view_draw;
#else
widget_class->expose_event = bytes_view_expose;
#endif
widget_class->scroll_event = bytes_view_scroll;
#if GTK_CHECK_VERSION(3, 0, 0)
{
GObjectClass *gobject_class = G_OBJECT_CLASS(klass);
gobject_class->set_property = bytes_view_set_property;
gobject_class->get_property = bytes_view_get_property;
/* XXX, move some code from widget->destroy to gobject->finalize? */
/* gobject_class->finalize = bytes_view_finalize; */
g_object_class_override_property(gobject_class, PROP_HADJUSTMENT, "hadjustment");
g_object_class_override_property(gobject_class, PROP_VADJUSTMENT, "vadjustment");
g_object_class_override_property(gobject_class, PROP_HSCROLL_POLICY, "hscroll-policy");
g_object_class_override_property(gobject_class, PROP_VSCROLL_POLICY, "vscroll-policy");
}
#else
klass->set_scroll_adjustments = bytes_view_set_scroll_adjustments;
widget_class->set_scroll_adjustments_signal =
g_signal_new(g_intern_static_string("set-scroll-adjustments"),
G_OBJECT_CLASS_TYPE(object_class),
(GSignalFlags)(G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION),
offsetof(BytesViewClass, set_scroll_adjustments),
NULL, NULL,
bv_VOID__OBJECT_OBJECT,
G_TYPE_NONE, 2,
GTK_TYPE_ADJUSTMENT,
GTK_TYPE_ADJUSTMENT);
#endif
}
GType
bytes_view_get_type(void)
{
static GType bytes_view_gtype = 0;
if (!bytes_view_gtype) {
static const GTypeInfo bytes_view_info = {
sizeof (BytesViewClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) bytes_view_class_init,
NULL, /* class finalize */
NULL, /* class_data */
sizeof(BytesView),
0, /* n_preallocs */
(GInstanceInitFunc) bytes_view_init,
NULL /* value_table */
};
#if GTK_CHECK_VERSION(3, 0, 0)
static const GInterfaceInfo scrollable_info = {
NULL,
NULL,
NULL
};
#endif
bytes_view_gtype = g_type_register_static(GTK_TYPE_WIDGET,
"BytesView",
&bytes_view_info,
(GTypeFlags)0);
#if GTK_CHECK_VERSION(3, 0, 0)
g_type_add_interface_static(bytes_view_gtype,
GTK_TYPE_SCROLLABLE,
&scrollable_info);
#endif
}
return bytes_view_gtype;
}
int
bytes_view_byte_from_xy(BytesView *bv, int x, int y)
{
/* hex_pos_byte array generated with hex_view_get_byte(0, 0, 0...70) */
static const int hex_pos_byte[70] = {
-1, -1,
0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3,
4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7,
-1,
8, 8, 8, 9, 9, 9, 10, 10, 10, 11, 11, 11,
12, 12, 12, 13, 13, 13, 14, 14, 14, 15, 15, 15,
-1, -1,
0, 1, 2, 3, 4, 5, 6, 7,
-1,
8, 9, 10, 11, 12, 13, 14, 15
};
/* bits_pos_byte array generated with bit_view_get_byte(0, 0, 0...84) */
static const int bits_pos_byte[84] = {
-1, -1,
0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3,
4, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5,
6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7,
-1, -1,
0, 1, 2, 3, 4, 5, 6, 7
};
int char_x, off_x = 1;
int char_y, off_y;
if (x < MARGIN)
return -1;
bytes_view_ensure_layout(bv);
char_y = (int) gtk_adjustment_get_value(bytes_view_ensure_vadj(bv)) + (y / bv->fontsize);
off_y = char_y * bv->per_line;
char_x = _bytes_view_find_pos(bv, off_y, x);
if (/* char_x < 0 || */ char_x < bv->use_digits)
return -1;
char_x -= bv->use_digits;
switch (bv->format) {
case BYTES_BITS:
g_return_val_if_fail(char_x >= 0 && char_x < (int) G_N_ELEMENTS(bits_pos_byte), -1);
off_x = bits_pos_byte[char_x];
break;
case BYTES_HEX:
g_return_val_if_fail(char_x >= 0 && char_x < (int) G_N_ELEMENTS(hex_pos_byte), -1);
off_x = hex_pos_byte[char_x];
break;
}
if (off_x == -1)
return -1;
return off_y + off_x;
}
void
bytes_view_scroll_to_byte(BytesView *bv, int byte)
{
int line;
g_return_if_fail(byte >= 0 && byte < bv->len);
line = byte / bv->per_line;
bytes_view_ensure_vadj(bv);
if (line > gtk_adjustment_get_upper(bv->vadj) - gtk_adjustment_get_page_size(bv->vadj)) {
line = (int)(gtk_adjustment_get_upper(bv->vadj) - gtk_adjustment_get_page_size(bv->vadj));
if (line < 0)
line = 0;
}
/* after bytes_view_scroll_to_byte() we always do bytes_view_refresh() so we can block it */
g_signal_handlers_block_by_func(bv->vadj, bytes_view_adjustment_changed, bv);
gtk_adjustment_set_value(bv->vadj, line);
g_signal_handlers_unblock_by_func(bv->vadj, bytes_view_adjustment_changed, bv);
/* XXX, scroll hadj? */
}
void
bytes_view_set_font(BytesView *bv, PangoFontDescription *font)
{
if (bv->font)
pango_font_description_free(bv->font);
#if GTK_CHECK_VERSION(3, 0, 0)
gtk_widget_override_font(GTK_WIDGET(bv), font);
#else
gtk_widget_modify_font(GTK_WIDGET(bv), font);
#endif
bv->font = pango_font_description_copy(font);
bv->max_width = 0;
if (bv->context) {
g_object_unref(bv->context);
bv->context = NULL;
bytes_view_ensure_layout(bv);
}
}
void
bytes_view_set_data(BytesView *bv, const guint8 *data, int len)
{
g_free(bv->pd);
bv->pd = (guint8 *)g_memdup(data, len);
bv->len = len;
/*
* How many of the leading digits of the offset will we supply?
* We always supply at least 4 digits, but if the maximum offset
* won't fit in 4 digits, we use as many digits as will be needed.
*/
if (((len - 1) & 0xF0000000) != 0)
bv->use_digits = 8; /* need all 8 digits */
else if (((len - 1) & 0x0F000000) != 0)
bv->use_digits = 7; /* need 7 digits */
else if (((len - 1) & 0x00F00000) != 0)
bv->use_digits = 6; /* need 6 digits */
else if (((len - 1) & 0x000F0000) != 0)
bv->use_digits = 5; /* need 5 digits */
else
bv->use_digits = 4; /* we'll supply 4 digits */
bytes_view_ensure_vadj(bv);
bytes_view_adjustment_set(bv);
}
void
bytes_view_set_encoding(BytesView *bv, packet_char_enc enc)
{
bv->encoding = enc;
}
void
bytes_view_set_format(BytesView *bv, int format)
{
g_assert(format == BYTES_HEX || format == BYTES_BITS);
bv->format = (bytes_view_type)format;
switch (format) {
case BYTES_BITS:
bv->per_line = 8;
break;
case BYTES_HEX:
bv->per_line = 16;
break;
}
}
void
bytes_view_set_highlight_style(BytesView *bv, gboolean inverse)
{
bv->bold_highlight = !inverse;
}
void
bytes_view_set_highlight(BytesView *bv, int start, int end, guint64 mask _U_, int maskle _U_)
{
bv->start[0] = start;
bv->end[0] = end;
}
void
bytes_view_set_highlight_extra(BytesView *bv, int id, int start, int end)
{
bv->start[id] = start;
bv->end[id] = end;
}
void
bytes_view_refresh(BytesView *bv)
{
/* bytes_view_render_full(bv); */
gtk_widget_queue_draw(GTK_WIDGET(bv));
}
GtkWidget *
bytes_view_new(void)
{
GtkWidget *widget;
widget = (GtkWidget *) g_object_new(BYTES_VIEW_TYPE, NULL);
g_assert(widget != NULL);
return widget;
}
/*
* Editor modelines - http://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/