mc/gnome/gview.c

400 lines
9.7 KiB
C

/*
* The GNOME file viewer frontend
* (C) The Free Software Foundation
*
* Author: Miguel de Icaza (miguel@gnu.org)
*/
#include <config.h>
#include "x.h"
#include "gmc-chargrid.h"
#include "dlg.h"
#define WANT_WIDGETS
#include "view.h"
enum {
CONTEXT_FILENAME,
CONTEXT_POSITION,
CONTEXT_BYTES,
CONTEXT_GROW,
CONTEXT_PERCENT
};
void
x_init_view (WView *view)
{
view->current_x = view->current_y = 0;
view->sadj = 0;
}
void
x_destroy_view (WView *view)
{
gtk_widget_destroy (GTK_WIDGET (view->widget.wdata));
}
static void
viewer_size_changed (GtkWidget *widget, guint cols, guint lines, WView *view)
{
widget_set_size (&view->widget, 0, 0, lines, cols);
dlg_redraw (view->widget.parent);
}
void
x_create_viewer (WView *view)
{
GtkWidget *viewer;
guint lines, cols;
viewer = gmc_char_grid_new ();
view->widget.wdata = (widget_data) viewer;
gtk_signal_connect (GTK_OBJECT (viewer), "size_changed",
GTK_SIGNAL_FUNC (viewer_size_changed),
view);
gtk_widget_show (viewer);
gmc_char_grid_get_size (GMC_CHAR_GRID (viewer), &cols, &lines);
widget_set_size (&view->widget, 0, 0, lines, cols);
}
void
x_focus_view (WView *view)
{
}
static void
scrollbar_moved (GtkAdjustment *adj, WView *view)
{
if (adj->value == view->start_display)
return;
if (adj->value < view->start_display){
while (adj->value < view->start_display)
view_move_backward (view, 1);
} else {
while (adj->value > view->start_display)
view_move_forward (view, 1);
}
/* To force a display */
view->dirty = max_dirt_limit + 1;
view_update (view);
}
void
view_percent (WView *view, int p, int w)
{
int percent;
char buffer [40];
percent = (view->s.st_size == 0 || view->last_byte == view->last) ? 100 :
(p > (INT_MAX/100) ?
p / (view->s.st_size / 100) :
p * 100 / view->s.st_size);
sprintf (buffer, "%3d%%", percent);
if (strcmp (buffer, GTK_LABEL (view->gtk_percent)->label))
gtk_label_set (GTK_LABEL (view->gtk_percent), buffer);
if (view->sadj){
GtkAdjustment *adj = GTK_ADJUSTMENT (view->sadj);
if ((int) adj->upper != view->last_byte){
adj->upper = view->last_byte;
adj->step_increment = 1.0;
adj->page_increment =
adj->page_size = view->last - view->start_display;
gtk_signal_emit_by_name (GTK_OBJECT (adj), "changed");
}
if ((int) adj->value != view->start_display){
gtk_adjustment_set_value (adj, view->start_display);
}
}
}
void
view_status (WView *view)
{
char buffer [80];
if (view->hex_mode)
sprintf (buffer, _("Offset 0x%08x"), view->edit_cursor);
else
sprintf (buffer, _("Col %d"), -view->start_col);
if (strcmp (buffer, GTK_LABEL (view->gtk_offset)->label))
gtk_label_set (GTK_LABEL (view->gtk_offset), buffer);
sprintf (buffer, _("%s bytes"), size_trunc (view->s.st_size));
if (strcmp (buffer, GTK_LABEL (view->gtk_bytes)->label))
gtk_label_set (GTK_LABEL (view->gtk_bytes), buffer);
if (view->hex_mode)
view_percent (view, view->edit_cursor - view->first, 0);
else
view_percent (view, view->start_display - view->first, 0);
}
void
view_add_character (WView *view, int c)
{
gmc_char_grid_put_char ((GmcCharGrid *) (view->widget.wdata),
view->current_x, view->current_y,
gmc_color_pairs [view->color].fore,
gmc_color_pairs [view->color].back, c);
}
void
view_add_string (WView *view, char *s)
{
gmc_char_grid_put_string ((GmcCharGrid *)(view->widget.wdata),
view->current_x, view->current_y,
gmc_color_pairs [view->color].fore,
gmc_color_pairs [view->color].back, s);
}
void
view_gotoyx (WView *view, int r, int c)
{
view->current_y = r;
view->current_x = c;
}
void
view_set_color (WView *view, int font)
{
view->color = font;
}
void
view_freeze (WView *view)
{
gmc_char_grid_freeze (GMC_CHAR_GRID (view->widget.wdata));
}
void
view_thaw (WView *view)
{
gmc_char_grid_thaw (GMC_CHAR_GRID (view->widget.wdata));
}
void
view_display_clean (WView *view, int h, int w)
{
gmc_char_grid_clear (GMC_CHAR_GRID (view->widget.wdata), 0, 0, w, h, NULL);
}
static int
gnome_view_callback (struct Dlg_head *h, int id, int msg)
{
return default_dlg_callback (h, id, msg);
}
static GtkWidget *
prepare_status (GtkWidget *s)
{
GtkWidget *frame, *label;
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
label = gtk_label_new ("");
gtk_container_add (GTK_CONTAINER (frame), label);
gtk_box_pack_start_defaults (GTK_BOX (s), frame);
return label;
}
static GtkWidget *
gview_status (WView *view)
{
GtkWidget *s;
s = gtk_hbox_new (0, 0);
view->gtk_fname = prepare_status (s);
view->gtk_offset = prepare_status (s);
view->gtk_bytes = prepare_status (s);
if (view->growing_buffer){
view->gtk_flags = prepare_status (s);
gtk_label_set (GTK_LABEL (view->gtk_flags), "[grow]");
}
view->gtk_percent = prepare_status (s);
gtk_label_set (GTK_LABEL (view->gtk_fname),
view->filename ? view->filename : view->command ? view->command : "");
GTK_BOX (s)->spacing = 2;
return s;
}
void
gview_quit (GtkWidget *widget, WView *view)
{
dlg_run_done (view->widget.parent);
destroy_dlg (view->widget.parent);
}
void
gnome_normal_search_cmd (GtkWidget *widget, WView *view)
{
normal_search_cmd (view);
}
void
gnome_regexp_search_cmd (GtkWidget *widget, WView *view)
{
regexp_search_cmd (view);
}
void
gnome_continue_search (GtkWidget *widget, WView *view)
{
continue_search (view);
}
void
gnome_goto_line (GtkWidget *widget, WView *view)
{
goto_line (view);
}
void
gnome_toggle_wrap (GtkWidget *widget, WView *view)
{
toggle_wrap_mode (view);
}
static void
gnome_toggle_format (GtkWidget *widget, WView *view)
{
change_nroff (view);
}
static void
gnome_toggle_hex (GtkWidget *widget, WView *view)
{
toggle_hex_mode (view);
}
static void
gnome_monitor (GtkWidget *widget, WView *view)
{
set_monitor (view, 1);
}
GnomeUIInfo gview_file_menu [] = {
GNOMEUIINFO_ITEM (N_("Goto line"), N_("Jump to a specified line number"), &gnome_goto_line, NULL),
GNOMEUIINFO_ITEM (N_("Monitor file"), N_("Monitor file growing"), &gnome_monitor, NULL),
GNOMEUIINFO_ITEM (N_("Quit"), N_("Terminate the viewer"), &gview_quit, NULL),
{ GNOME_APP_UI_ENDOFINFO, 0, 0 }
};
GnomeUIInfo gview_search_menu [] = {
GNOMEUIINFO_ITEM (N_("Search"), N_("String search"), gnome_normal_search_cmd, NULL),
GNOMEUIINFO_ITEM (N_("Regexp search"), N_("Regular expression search"), gnome_regexp_search_cmd, NULL),
GNOMEUIINFO_SEPARATOR,
GNOMEUIINFO_ITEM (N_("Search again..."), N_("Continue searching"), gnome_continue_search, NULL),
{ GNOME_APP_UI_ENDOFINFO, 0, 0 }
};
GnomeUIInfo gview_mode_menu [] = {
#define WRAP_POS 0
GNOMEUIINFO_TOGGLEITEM (N_("Wrap"), N_("Wrap the text"), gnome_toggle_wrap, NULL),
#if 0
/* Can not use this one yet, as it destroys the viewer, need to fix that */
GNOMEUIINFO_TOGGLEITEM ("Parsed view", NULL, gnome_toggle_parse, NULL),
#endif
#define FORMAT_POS 1
GNOMEUIINFO_TOGGLEITEM (N_("Formatted"), NULL, gnome_toggle_format, NULL),
#define HEX_POS 2
GNOMEUIINFO_TOGGLEITEM (N_("Hex"), NULL, gnome_toggle_hex, NULL),
{ GNOME_APP_UI_ENDOFINFO, 0, 0 }
};
GnomeUIInfo gview_top_menu [] = {
{ GNOME_APP_UI_SUBTREE, N_("File"), NULL, &gview_file_menu },
{ GNOME_APP_UI_SUBTREE, N_("Search"), NULL, &gview_search_menu },
{ GNOME_APP_UI_SUBTREE, N_("Mode"), NULL, &gview_mode_menu },
{ GNOME_APP_UI_ENDOFINFO, 0, 0 }
};
static int
quit_view (GtkWidget *widget, GdkEvent *event, WView *view)
{
gview_quit (widget, view);
return TRUE;
}
int
view (char *_command, char *_file, int *move_dir_p, int start_line)
{
Dlg_head *our_dlg;
GtkWidget *toplevel, *status, *scrollbar, *hbox;
GtkVBox *vbox;
WView *wview;
WButtonBar *bar;
int midnight_colors [4];
int error;
/* Create dialog and widgets, put them on the dialog */
our_dlg = create_dlg (0, 0, 0, 0, midnight_colors,
gnome_view_callback, "[Internal File Viewer]",
"view",
DLG_NO_TED | DLG_GNOME_APP);
toplevel = GTK_WIDGET (our_dlg->wdata);
vbox = GTK_VBOX (gtk_vbox_new (0, 0));
gtk_window_set_policy (GTK_WINDOW (toplevel), TRUE, TRUE, TRUE);
gnome_app_set_contents (GNOME_APP (toplevel), GTK_WIDGET (vbox));
gtk_window_set_title (GTK_WINDOW (toplevel),
_command ? _command : _file);
wview = view_new (0, 0, 80, 25, 0);
bar = buttonbar_new (1);
add_widget (our_dlg, wview);
add_widget (our_dlg, bar);
error = view_init (wview, _command, _file, start_line);
if (move_dir_p)
*move_dir_p = 0;
/* Please note that if you add another widget,
* you have to modify view_adjust_size to
* be aware of it
*/
if (error)
return !error;
status = gview_status (wview);
gnome_app_create_menus_with_data (GNOME_APP (toplevel), gview_top_menu, wview);
/* Setup the menus checkboxes correctly */
GTK_CHECK_MENU_ITEM (gview_mode_menu [WRAP_POS].widget)->active = wview->wrap_mode;
GTK_CHECK_MENU_ITEM (gview_mode_menu [FORMAT_POS].widget)->active = wview->viewer_nroff_flag;
GTK_CHECK_MENU_ITEM (gview_mode_menu [HEX_POS].widget)->active = wview->hex_mode;
init_dlg (our_dlg);
gtk_box_pack_start (GTK_BOX (vbox), status, 0, 1, 0);
wview->sadj = gtk_adjustment_new (0.0, 0.0, 1000000.0, 1.0, 25.0, 25.0);
scrollbar = gtk_vscrollbar_new (wview->sadj);
gtk_signal_connect (GTK_OBJECT (wview->sadj), "value_changed",
GTK_SIGNAL_FUNC(scrollbar_moved), wview);
gtk_signal_connect (GTK_OBJECT (toplevel), "delete_event",
GTK_SIGNAL_FUNC (quit_view), wview);
hbox = gtk_hbox_new (0, 0);
gtk_box_pack_start (GTK_BOX (vbox), hbox, 1, 1, 0);
gtk_box_pack_start (GTK_BOX (hbox), GTK_WIDGET (wview->widget.wdata), 1, 1, 0);
gtk_box_pack_start (GTK_BOX (hbox), GTK_WIDGET (scrollbar), 0, 1, 0);
gtk_widget_show_all (toplevel);
return 1;
}