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