subsurface/equipment.c
Linus Torvalds 41084817ea Repaint the dive after equipment changes
Those changes may have changed cylinder sizes and beginning/end
pressures, so the dive profile and SAC rate may be different.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-10-21 15:55:52 +03:00

801 lines
21 KiB
C

/* equipment.c */
/* creates the UI for the equipment page -
* controlled through the following interfaces:
*
* void show_dive_equipment(struct dive *dive)
* void flush_dive_equipment_changes(struct dive *dive)
*
* called from gtk-ui:
* GtkWidget *equipment_widget(void)
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdarg.h>
#include <time.h>
#include "dive.h"
#include "display.h"
#include "display-gtk.h"
#include "divelist.h"
GtkListStore *cylinder_model;
enum {
CYL_DESC,
CYL_SIZE,
CYL_WORKP,
CYL_STARTP,
CYL_ENDP,
CYL_O2,
CYL_HE,
CYL_COLUMNS
};
static struct {
int max_index;
GtkListStore *model;
GtkWidget *tree_view;
GtkWidget *edit, *add, *del;
GtkTreeViewColumn *desc, *size, *workp, *startp, *endp, *o2, *he;
} cylinder_list;
struct cylinder_widget {
int index, changed;
const char *name;
GtkWidget *hbox;
GtkComboBox *description;
GtkSpinButton *size, *pressure, *start, *end;
GtkWidget *o2, *gasmix_button;
};
static int convert_pressure(int mbar, double *p)
{
int decimals = 1;
double pressure;
pressure = mbar / 1000.0;
if (mbar) {
if (output_units.pressure == PSI) {
pressure *= 14.5037738; /* Bar to PSI */
decimals = 0;
}
}
*p = pressure;
return decimals;
}
static int convert_volume_pressure(int ml, int mbar, double *v, double *p)
{
int decimals = 1;
double volume, pressure;
volume = ml / 1000.0;
pressure = mbar / 1000.0;
if (mbar) {
if (output_units.volume == CUFT) {
volume /= 28.3168466; /* Liters to cuft */
volume *= pressure / 1.01325;
}
if (output_units.pressure == PSI) {
pressure *= 14.5037738; /* Bar to PSI */
decimals = 0;
}
}
*v = volume;
*p = pressure;
return decimals;
}
static void set_cylinder_spinbuttons(struct cylinder_widget *cylinder, int ml, int mbar, int start, int end)
{
double volume, pressure;
convert_volume_pressure(ml, mbar, &volume, &pressure);
gtk_spin_button_set_value(cylinder->size, volume);
gtk_spin_button_set_value(cylinder->pressure, pressure);
convert_pressure(start, &pressure);
gtk_spin_button_set_value(cylinder->start, pressure);
convert_pressure(end, &pressure);
gtk_spin_button_set_value(cylinder->end, pressure);
}
static void cylinder_cb(GtkComboBox *combo_box, gpointer data)
{
GtkTreeIter iter;
GtkTreeModel *model = gtk_combo_box_get_model(combo_box);
int ml, mbar, start, end;
struct cylinder_widget *cylinder = data;
cylinder_t *cyl = current_dive->cylinder + cylinder->index;
/* Did the user set it to some non-standard value? */
if (!gtk_combo_box_get_active_iter(combo_box, &iter)) {
cylinder->changed = 1;
return;
}
/*
* We get "change" signal callbacks just because we set
* the description by hand. Whatever. So ignore them if
* they are no-ops.
*/
if (!cylinder->changed && cyl->type.description) {
int same;
char *desc = gtk_combo_box_get_active_text(combo_box);
same = !strcmp(desc, cyl->type.description);
g_free(desc);
if (same)
return;
}
cylinder->changed = 1;
gtk_tree_model_get(model, &iter,
CYL_SIZE, &ml,
CYL_WORKP, &mbar,
CYL_STARTP, &start,
CYL_ENDP, &end,
-1);
set_cylinder_spinbuttons(cylinder, ml, mbar, start, end);
}
/*
* The gtk_tree_model_foreach() interface is bad. It could have
* returned whether the callback ever returned true
*/
static int found_match = 0;
static gboolean match_cylinder(GtkTreeModel *model,
GtkTreePath *path,
GtkTreeIter *iter,
gpointer data)
{
const char *name;
struct cylinder_widget *cylinder = data;
GValue value = {0, };
gtk_tree_model_get_value(model, iter, 0, &value);
name = g_value_get_string(&value);
if (strcmp(cylinder->name, name))
return FALSE;
gtk_combo_box_set_active_iter(cylinder->description, iter);
found_match = 1;
return TRUE;
}
static void add_cylinder(struct cylinder_widget *cylinder, const char *desc, int ml, int mbar)
{
GtkTreeModel *model;
found_match = 0;
model = gtk_combo_box_get_model(cylinder->description);
cylinder->name = desc;
gtk_tree_model_foreach(model, match_cylinder, cylinder);
if (!found_match) {
GtkListStore *store = GTK_LIST_STORE(model);
GtkTreeIter iter;
gtk_list_store_append(store, &iter);
gtk_list_store_set(store, &iter,
0, desc,
1, ml,
2, mbar,
-1);
gtk_combo_box_set_active_iter(cylinder->description, &iter);
}
}
static void show_cylinder(cylinder_t *cyl, struct cylinder_widget *cylinder)
{
const char *desc;
int ml, mbar;
double o2;
/* Don't show uninitialized cylinder widgets */
if (!cylinder->description)
return;
desc = cyl->type.description;
if (!desc)
desc = "";
ml = cyl->type.size.mliter;
mbar = cyl->type.workingpressure.mbar;
add_cylinder(cylinder, desc, ml, mbar);
set_cylinder_spinbuttons(cylinder,
cyl->type.size.mliter, cyl->type.workingpressure.mbar,
cyl->start.mbar, cyl->end.mbar);
o2 = cyl->gasmix.o2.permille / 10.0;
gtk_widget_set_sensitive(cylinder->o2, !!o2);
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button), !!o2);
if (!o2)
o2 = 21.0;
gtk_spin_button_set_value(GTK_SPIN_BUTTON(cylinder->o2), o2);
}
static int cyl_nothing(cylinder_t *cyl)
{
return !cyl->type.size.mliter &&
!cyl->type.workingpressure.mbar &&
!cyl->type.description &&
!cyl->gasmix.o2.permille &&
!cyl->gasmix.he.permille &&
!cyl->start.mbar &&
!cyl->end.mbar;
}
static void set_one_cylinder(int index, cylinder_t *cyl, GtkListStore *model, GtkTreeIter *iter)
{
gtk_list_store_set(model, iter,
CYL_DESC, cyl->type.description ? : "",
CYL_SIZE, cyl->type.size.mliter,
CYL_WORKP, cyl->type.workingpressure.mbar,
CYL_STARTP, cyl->start.mbar,
CYL_ENDP, cyl->end.mbar,
CYL_O2, cyl->gasmix.o2.permille,
CYL_HE, cyl->gasmix.he.permille,
-1);
}
void show_dive_equipment(struct dive *dive)
{
int i, max;
GtkTreeIter iter;
GtkListStore *model;
model = cylinder_list.model;
gtk_list_store_clear(model);
max = MAX_CYLINDERS;
do {
cylinder_t *cyl = &dive->cylinder[max-1];
if (!cyl_nothing(cyl))
break;
} while (--max);
cylinder_list.max_index = max;
gtk_widget_set_sensitive(cylinder_list.edit, 0);
gtk_widget_set_sensitive(cylinder_list.del, 0);
gtk_widget_set_sensitive(cylinder_list.add, max < MAX_CYLINDERS);
for (i = 0; i < max; i++) {
cylinder_t *cyl = dive->cylinder+i;
gtk_list_store_append(model, &iter);
set_one_cylinder(i, cyl, model, &iter);
}
}
static GtkWidget *create_spinbutton(GtkWidget *vbox, const char *name, double min, double max, double incr)
{
GtkWidget *frame, *hbox, *button;
frame = gtk_frame_new(name);
gtk_box_pack_start(GTK_BOX(vbox), frame, TRUE, FALSE, 0);
hbox = gtk_hbox_new(FALSE, 3);
gtk_container_add(GTK_CONTAINER(frame), hbox);
button = gtk_spin_button_new_with_range(min, max, incr);
gtk_box_pack_start(GTK_BOX(hbox), button, TRUE, FALSE, 0);
gtk_spin_button_set_update_policy(GTK_SPIN_BUTTON(button), GTK_UPDATE_IF_VALID);
return button;
}
static void fill_cylinder_info(struct cylinder_widget *cylinder, cylinder_t *cyl, const char *desc,
double volume, double pressure, double start, double end, int o2)
{
int mbar, ml;
if (output_units.pressure == PSI) {
pressure /= 14.5037738;
start /= 14.5037738;
end /= 14.5037738;
}
if (pressure && output_units.volume == CUFT) {
volume *= 28.3168466; /* CUFT to liter */
volume /= pressure / 1.01325;
}
ml = volume * 1000 + 0.5;
mbar = pressure * 1000 + 0.5;
if (o2 < 211)
o2 = 0;
cyl->type.description = desc;
cyl->type.size.mliter = ml;
cyl->type.workingpressure.mbar = mbar;
cyl->start.mbar = start * 1000 + 0.5;
cyl->end.mbar = end * 1000 + 0.5;
cyl->gasmix.o2.permille = o2;
/*
* Also, insert it into the model if it doesn't already exist
*/
add_cylinder(cylinder, desc, ml, mbar);
}
static void record_cylinder_changes(cylinder_t *cyl, struct cylinder_widget *cylinder)
{
const gchar *desc;
GtkComboBox *box;
double volume, pressure, start, end;
int o2;
/* Ignore uninitialized cylinder widgets */
box = cylinder->description;
if (!box)
return;
desc = gtk_combo_box_get_active_text(box);
volume = gtk_spin_button_get_value(cylinder->size);
pressure = gtk_spin_button_get_value(cylinder->pressure);
start = gtk_spin_button_get_value(cylinder->start);
end = gtk_spin_button_get_value(cylinder->end);
o2 = gtk_spin_button_get_value(GTK_SPIN_BUTTON(cylinder->o2))*10 + 0.5;
if (!gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(cylinder->gasmix_button)))
o2 = 0;
fill_cylinder_info(cylinder, cyl, desc, volume, pressure, start, end, o2);
}
void flush_dive_equipment_changes(struct dive *dive)
{
/* We do nothing: we require the "Ok" button press */
}
/*
* We hardcode the most common standard cylinders,
* we should pick up any other names from the dive
* logs directly.
*/
static struct tank_info {
const char *name;
int size; /* cuft if < 1000, otherwise mliter */
int psi; /* If zero, size is in mliter */
} tank_info[100] = {
/* Need an empty entry for the no-cylinder case */
{ "", 0, 0 },
/* Size-only metric cylinders */
{ "10.0 l", 10000 },
{ "11.1 l", 11100 },
/* Most common AL cylinders */
{ "AL50", 50, 3000 },
{ "AL63", 63, 3000 },
{ "AL72", 72, 3000 },
{ "AL80", 80, 3000 },
{ "AL100", 100, 3300 },
/* Somewhat common LP steel cylinders */
{ "LP85", 85, 2640 },
{ "LP95", 95, 2640 },
{ "LP108", 108, 2640 },
{ "LP121", 121, 2640 },
/* Somewhat common HP steel cylinders */
{ "HP65", 65, 3442 },
{ "HP80", 80, 3442 },
{ "HP100", 100, 3442 },
{ "HP119", 119, 3442 },
{ "HP130", 130, 3442 },
/* We'll fill in more from the dive log dynamically */
{ NULL, }
};
static void fill_tank_list(GtkListStore *store)
{
GtkTreeIter iter;
struct tank_info *info = tank_info;
while (info->name) {
int size = info->size;
int psi = info->psi;
int mbar = 0, ml = size;
/* Is it in cuft and psi? */
if (psi) {
double bar = 0.0689475729 * psi;
double airvolume = 28316.8466 * size;
double atm = bar / 1.01325;
ml = airvolume / atm + 0.5;
mbar = bar*1000 + 0.5;
}
gtk_list_store_append(store, &iter);
gtk_list_store_set(store, &iter,
0, info->name,
1, ml,
2, mbar,
-1);
info++;
}
}
static void nitrox_cb(GtkToggleButton *button, gpointer data)
{
struct cylinder_widget *cylinder = data;
int state;
state = gtk_toggle_button_get_active(button);
gtk_widget_set_sensitive(cylinder->o2, state);
}
static void cylinder_widget(GtkWidget *vbox, struct cylinder_widget *cylinder, GtkListStore *model)
{
GtkWidget *frame, *hbox;
GtkWidget *widget;
/*
* Cylinder type: description, size and
* working pressure
*/
frame = gtk_frame_new("Cylinder");
hbox = gtk_hbox_new(FALSE, 3);
gtk_container_add(GTK_CONTAINER(frame), hbox);
widget = gtk_combo_box_entry_new_with_model(GTK_TREE_MODEL(model), 0);
gtk_box_pack_start(GTK_BOX(hbox), widget, FALSE, TRUE, 0);
cylinder->description = GTK_COMBO_BOX(widget);
g_signal_connect(widget, "changed", G_CALLBACK(cylinder_cb), cylinder);
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
gtk_box_pack_start(GTK_BOX(hbox), frame, FALSE, TRUE, 0);
widget = create_spinbutton(hbox, "Size", 0, 300, 0.1);
cylinder->size = GTK_SPIN_BUTTON(widget);
widget = create_spinbutton(hbox, "Pressure", 0, 5000, 1);
cylinder->pressure = GTK_SPIN_BUTTON(widget);
/*
* Cylinder start/end pressures
*/
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
widget = create_spinbutton(hbox, "Start Pressure", 0, 5000, 1);
cylinder->start = GTK_SPIN_BUTTON(widget);
widget = create_spinbutton(hbox, "End Pressure", 0, 5000, 1);
cylinder->end = GTK_SPIN_BUTTON(widget);
/*
* Cylinder gas mix: Air, Nitrox or Trimix
*/
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 0);
widget = create_spinbutton(hbox, "Nitrox", 21, 100, 0.1);
cylinder->o2 = widget;
cylinder->gasmix_button = gtk_check_button_new();
gtk_box_pack_start(GTK_BOX(gtk_widget_get_parent(cylinder->o2)),
cylinder->gasmix_button, FALSE, FALSE, 3);
g_signal_connect(cylinder->gasmix_button, "toggled", G_CALLBACK(nitrox_cb), cylinder);
gtk_spin_button_set_range(GTK_SPIN_BUTTON(cylinder->o2), 21.0, 100.0);
}
static int edit_cylinder_dialog(int index, cylinder_t *cyl)
{
int success;
GtkWidget *dialog, *vbox;
struct cylinder_widget cylinder;
struct dive *dive;
cylinder.index = index;
cylinder.changed = 0;
dive = current_dive;
if (!dive)
return 0;
*cyl = dive->cylinder[index];
dialog = gtk_dialog_new_with_buttons("Cylinder",
GTK_WINDOW(main_window),
GTK_DIALOG_DESTROY_WITH_PARENT,
GTK_STOCK_OK, GTK_RESPONSE_ACCEPT,
GTK_STOCK_CANCEL, GTK_RESPONSE_REJECT,
NULL);
vbox = gtk_dialog_get_content_area(GTK_DIALOG(dialog));
cylinder_widget(vbox, &cylinder, cylinder_model);
show_cylinder(cyl, &cylinder);
gtk_widget_show_all(dialog);
success = gtk_dialog_run(GTK_DIALOG(dialog)) == GTK_RESPONSE_ACCEPT;
if (success) {
record_cylinder_changes(cyl, &cylinder);
dive->cylinder[index] = *cyl;
mark_divelist_changed(TRUE);
flush_divelist(dive);
repaint_dive();
}
gtk_widget_destroy(dialog);
return success;
}
static int get_model_index(GtkListStore *model, GtkTreeIter *iter)
{
int *p, index;
GtkTreePath *path;
path = gtk_tree_model_get_path(GTK_TREE_MODEL(model), iter);
p = gtk_tree_path_get_indices(path);
index = p ? *p : 0;
gtk_tree_path_free(path);
return index;
}
static void edit_cb(GtkButton *button, gpointer data)
{
int index;
GtkTreeIter iter;
GtkListStore *model = cylinder_list.model;
GtkTreeSelection *selection;
cylinder_t cyl;
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
/* Nothing selected? This shouldn't happen, since the button should be inactive */
if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
return;
index = get_model_index(model, &iter);
if (!edit_cylinder_dialog(index, &cyl))
return;
set_one_cylinder(index, &cyl, model, &iter);
}
static void add_cb(GtkButton *button, gpointer data)
{
int index = cylinder_list.max_index;
GtkTreeIter iter;
GtkListStore *model = cylinder_list.model;
GtkTreeSelection *selection;
cylinder_t cyl;
if (!edit_cylinder_dialog(index, &cyl))
return;
gtk_list_store_append(model, &iter);
set_one_cylinder(index, &cyl, model, &iter);
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
gtk_tree_selection_select_iter(selection, &iter);
cylinder_list.max_index++;
gtk_widget_set_sensitive(cylinder_list.add, cylinder_list.max_index < MAX_CYLINDERS);
}
static void del_cb(GtkButton *button, gpointer data)
{
int index, nr;
GtkTreeIter iter;
GtkListStore *model = cylinder_list.model;
GtkTreeSelection *selection;
struct dive *dive;
cylinder_t *cyl;
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(cylinder_list.tree_view));
/* Nothing selected? This shouldn't happen, since the button should be inactive */
if (!gtk_tree_selection_get_selected(selection, NULL, &iter))
return;
index = get_model_index(model, &iter);
dive = current_dive;
if (!dive)
return;
cyl = dive->cylinder + index;
nr = cylinder_list.max_index - index - 1;
gtk_list_store_remove(model, &iter);
cylinder_list.max_index--;
memmove(cyl, cyl+1, nr*sizeof(*cyl));
memset(cyl+nr, 0, sizeof(*cyl));
mark_divelist_changed(TRUE);
flush_divelist(dive);
gtk_widget_set_sensitive(cylinder_list.edit, 0);
gtk_widget_set_sensitive(cylinder_list.del, 0);
gtk_widget_set_sensitive(cylinder_list.add, 1);
}
static GtkListStore *create_tank_size_model(void)
{
GtkListStore *model;
model = gtk_list_store_new(3,
G_TYPE_STRING, /* Tank name */
G_TYPE_INT, /* Tank size in mliter */
G_TYPE_INT, /* Tank working pressure in mbar */
-1);
fill_tank_list(model);
return model;
}
static void size_data_func(GtkTreeViewColumn *col,
GtkCellRenderer *renderer,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
int ml, mbar;
double size, pressure;
char buffer[10];
gtk_tree_model_get(model, iter, CYL_SIZE, &ml, CYL_WORKP, &mbar, -1);
convert_volume_pressure(ml, mbar, &size, &pressure);
if (size)
snprintf(buffer, sizeof(buffer), "%.1f", size);
else
strcpy(buffer, "unkn");
g_object_set(renderer, "text", buffer, NULL);
}
static void pressure_data_func(GtkTreeViewColumn *col,
GtkCellRenderer *renderer,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
int index = (long)data;
int mbar, decimals;
double pressure;
char buffer[10];
gtk_tree_model_get(model, iter, index, &mbar, -1);
decimals = convert_pressure(mbar, &pressure);
if (mbar)
snprintf(buffer, sizeof(buffer), "%.*f", decimals, pressure);
else
*buffer = 0;
g_object_set(renderer, "text", buffer, NULL);
}
static void percentage_data_func(GtkTreeViewColumn *col,
GtkCellRenderer *renderer,
GtkTreeModel *model,
GtkTreeIter *iter,
gpointer data)
{
int index = (long)data;
int permille;
char buffer[10];
gtk_tree_model_get(model, iter, index, &permille, -1);
if (permille)
snprintf(buffer, sizeof(buffer), "%.1f%%", permille / 10.0);
else
*buffer = 0;
g_object_set(renderer, "text", buffer, NULL);
}
static void selection_cb(GtkTreeSelection *selection, GtkTreeModel *model)
{
GtkTreeIter iter;
int selected;
selected = gtk_tree_selection_get_selected(selection, NULL, &iter);
gtk_widget_set_sensitive(cylinder_list.edit, selected);
gtk_widget_set_sensitive(cylinder_list.del, selected);
}
static void row_activated_cb(GtkTreeView *tree_view,
GtkTreePath *path,
GtkTreeViewColumn *column,
GtkTreeModel *model)
{
edit_cb(NULL, NULL);
}
static GtkWidget *cylinder_list_create(void)
{
GtkWidget *tree_view;
GtkTreeSelection *selection;
GtkListStore *model;
model = gtk_list_store_new(CYL_COLUMNS,
G_TYPE_STRING, /* CYL_DESC: utf8 */
G_TYPE_INT, /* CYL_SIZE: mliter */
G_TYPE_INT, /* CYL_WORKP: mbar */
G_TYPE_INT, /* CYL_STARTP: mbar */
G_TYPE_INT, /* CYL_ENDP: mbar */
G_TYPE_INT, /* CYL_O2: permille */
G_TYPE_INT /* CYL_HE: permille */
);
cylinder_list.model = model;
tree_view = gtk_tree_view_new_with_model(GTK_TREE_MODEL(model));
g_signal_connect(tree_view, "row-activated", G_CALLBACK(row_activated_cb), model);
selection = gtk_tree_view_get_selection(GTK_TREE_VIEW(tree_view));
gtk_tree_selection_set_mode(GTK_TREE_SELECTION(selection), GTK_SELECTION_BROWSE);
g_signal_connect(selection, "changed", G_CALLBACK(selection_cb), model);
g_object_set(G_OBJECT(tree_view), "headers-visible", TRUE,
"enable-grid-lines", GTK_TREE_VIEW_GRID_LINES_BOTH,
NULL);
cylinder_list.desc = tree_view_column(tree_view, CYL_DESC, "Type", NULL, PANGO_ALIGN_LEFT, TRUE);
cylinder_list.size = tree_view_column(tree_view, CYL_SIZE, "Size", size_data_func, PANGO_ALIGN_RIGHT, TRUE);
cylinder_list.workp = tree_view_column(tree_view, CYL_WORKP, "MaxPress", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
cylinder_list.startp = tree_view_column(tree_view, CYL_STARTP, "Start", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
cylinder_list.endp = tree_view_column(tree_view, CYL_ENDP, "End", pressure_data_func, PANGO_ALIGN_RIGHT, TRUE);
cylinder_list.o2 = tree_view_column(tree_view, CYL_O2, "O" UTF8_SUBSCRIPT_2 "%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
cylinder_list.he = tree_view_column(tree_view, CYL_HE, "He%", percentage_data_func, PANGO_ALIGN_RIGHT, TRUE);
return tree_view;
}
GtkWidget *equipment_widget(void)
{
GtkWidget *vbox, *hbox, *frame, *framebox;
GtkWidget *add, *del, *edit;
vbox = gtk_vbox_new(FALSE, 3);
/*
* We create the cylinder size model at startup, since
* we're going to share it across all cylinders and all
* dives. So if you add a new cylinder type in one dive,
* it will show up when you edit the cylinder types for
* another dive.
*/
cylinder_model = create_tank_size_model();
cylinder_list.tree_view = cylinder_list_create();
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 3);
frame = gtk_frame_new("Cylinders");
gtk_box_pack_start(GTK_BOX(hbox), frame, TRUE, FALSE, 3);
framebox = gtk_vbox_new(FALSE, 3);
gtk_container_add(GTK_CONTAINER(frame), framebox);
hbox = gtk_hbox_new(FALSE, 3);
gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
gtk_box_pack_start(GTK_BOX(hbox), cylinder_list.tree_view, TRUE, FALSE, 3);
hbox = gtk_hbox_new(TRUE, 3);
gtk_box_pack_start(GTK_BOX(framebox), hbox, TRUE, FALSE, 3);
edit = gtk_button_new_from_stock(GTK_STOCK_EDIT);
add = gtk_button_new_from_stock(GTK_STOCK_ADD);
del = gtk_button_new_from_stock(GTK_STOCK_DELETE);
gtk_box_pack_start(GTK_BOX(hbox), edit, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox), add, FALSE, FALSE, 0);
gtk_box_pack_start(GTK_BOX(hbox), del, FALSE, FALSE, 0);
cylinder_list.edit = edit;
cylinder_list.add = add;
cylinder_list.del = del;
g_signal_connect(edit, "clicked", G_CALLBACK(edit_cb), NULL);
g_signal_connect(add, "clicked", G_CALLBACK(add_cb), NULL);
g_signal_connect(del, "clicked", G_CALLBACK(del_cb), NULL);
return vbox;
}