Since 74fe396cc5 compute_bounding_box() by itself does not do the entire computation, so we must call into Item::bounding_box() to get the result with children added also
320 lines
6.0 KiB
C++
320 lines
6.0 KiB
C++
/*
|
|
* Copyright (C) 2012 Carl Hetherington <carl@carlh.net>
|
|
* Copyright (C) 2016-2017 Paul Davis <paul@linuxaudiosystems.com>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <algorithm>
|
|
|
|
#include "pbd/unwind.h"
|
|
|
|
#include "canvas/box.h"
|
|
#include "canvas/rectangle.h"
|
|
|
|
using namespace ArdourCanvas;
|
|
|
|
Box::Box (Canvas* canvas, Orientation o)
|
|
: Rectangle (canvas)
|
|
, orientation (o)
|
|
, spacing (0)
|
|
, top_padding (0), right_padding (0), bottom_padding (0), left_padding (0)
|
|
, top_margin (0), right_margin (0), bottom_margin (0), left_margin (0)
|
|
, homogenous (false)
|
|
, ignore_child_changes (false)
|
|
{
|
|
}
|
|
|
|
Box::Box (Item* parent, Orientation o)
|
|
: Rectangle (parent)
|
|
, orientation (o)
|
|
, spacing (0)
|
|
, top_padding (0), right_padding (0), bottom_padding (0), left_padding (0)
|
|
, top_margin (0), right_margin (0), bottom_margin (0), left_margin (0)
|
|
, homogenous (false)
|
|
, ignore_child_changes (false)
|
|
{
|
|
}
|
|
|
|
|
|
Box::Box (Item* parent, Duple const & p, Orientation o)
|
|
: Rectangle (parent)
|
|
, orientation (o)
|
|
, spacing (0)
|
|
, top_padding (0), right_padding (0), bottom_padding (0), left_padding (0)
|
|
, top_margin (0), right_margin (0), bottom_margin (0), left_margin (0)
|
|
, homogenous (false)
|
|
, ignore_child_changes (false)
|
|
{
|
|
set_position (p);
|
|
}
|
|
|
|
void
|
|
Box::render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const
|
|
{
|
|
if (_fill || _outline) {
|
|
Rectangle::render (area, context);
|
|
}
|
|
|
|
Item::render_children (area, context);
|
|
}
|
|
|
|
void
|
|
Box::compute_bounding_box () const
|
|
{
|
|
_bounding_box = Rect();
|
|
|
|
if (_items.empty()) {
|
|
bb_clean ();
|
|
return;
|
|
}
|
|
|
|
add_child_bounding_boxes (!collapse_on_hide);
|
|
|
|
if (_bounding_box) {
|
|
Rect r = _bounding_box;
|
|
|
|
/* left and top margin and padding is already built into the
|
|
* position of children
|
|
*/
|
|
|
|
_bounding_box = r.expand (0.0,
|
|
right_padding + outline_width() + right_margin,
|
|
bottom_padding + outline_width() + bottom_margin,
|
|
0.0);
|
|
}
|
|
|
|
bb_clean ();
|
|
}
|
|
|
|
void
|
|
Box::set_spacing (double s)
|
|
{
|
|
spacing = s;
|
|
}
|
|
|
|
void
|
|
Box::set_padding (double t, double r, double b, double l)
|
|
{
|
|
double last = t;
|
|
|
|
top_padding = t;
|
|
|
|
if (r >= 0) {
|
|
last = r;
|
|
}
|
|
right_padding = last;
|
|
if (b >= 0) {
|
|
last = b;
|
|
}
|
|
bottom_padding = last;
|
|
if (l >= 0) {
|
|
last = l;
|
|
}
|
|
left_padding = last;
|
|
}
|
|
|
|
void
|
|
Box::set_margin (double t, double r, double b, double l)
|
|
{
|
|
double last = t;
|
|
top_margin = t;
|
|
if (r >= 0) {
|
|
last = r;
|
|
}
|
|
right_margin = last;
|
|
if (b >= 0) {
|
|
last = b;
|
|
}
|
|
bottom_margin = last;
|
|
if (l >= 0) {
|
|
last = l;
|
|
}
|
|
left_margin = last;
|
|
}
|
|
|
|
void
|
|
Box::set_homogenous (bool yn)
|
|
{
|
|
homogenous = yn;
|
|
}
|
|
|
|
void
|
|
Box::reposition_children ()
|
|
{
|
|
Duple previous_edge = Duple (left_margin+left_padding, top_margin+top_padding);
|
|
Distance largest_width = 0;
|
|
Distance largest_height = 0;
|
|
Rect uniform_size;
|
|
|
|
if (homogenous) {
|
|
|
|
for (std::list<Item*>::iterator i = _items.begin(); i != _items.end(); ++i) {
|
|
Rect bb = (*i)->bounding_box();
|
|
if (bb) {
|
|
largest_height = std::max (largest_height, bb.height());
|
|
largest_width = std::max (largest_width, bb.width());
|
|
}
|
|
}
|
|
|
|
uniform_size = Rect (0, 0, largest_width, largest_height);
|
|
}
|
|
|
|
{
|
|
|
|
PBD::Unwinder<bool> uw (ignore_child_changes, true);
|
|
|
|
for (std::list<Item*>::iterator i = _items.begin(); i != _items.end(); ++i) {
|
|
|
|
(*i)->set_position (previous_edge);
|
|
|
|
if (homogenous) {
|
|
(*i)->size_allocate (uniform_size);
|
|
}
|
|
|
|
double width;
|
|
double height;
|
|
|
|
(*i)->size_request (width, height);
|
|
|
|
if (orientation == Vertical) {
|
|
|
|
Distance shift = 0;
|
|
|
|
if (!(*i)->visible()) {
|
|
/* invisible child */
|
|
if (!collapse_on_hide) {
|
|
/* still add in its size */
|
|
shift += height;
|
|
}
|
|
} else {
|
|
shift += height;
|
|
}
|
|
|
|
previous_edge = previous_edge.translate (Duple (0, spacing + shift));
|
|
|
|
} else {
|
|
|
|
Distance shift = 0;
|
|
|
|
if (!(*i)->visible()) {
|
|
if (!collapse_on_hide) {
|
|
shift += width;
|
|
}
|
|
} else {
|
|
shift += width;
|
|
}
|
|
|
|
previous_edge = previous_edge.translate (Duple (spacing + shift, 0));
|
|
}
|
|
}
|
|
}
|
|
|
|
_bounding_box_dirty = true;
|
|
}
|
|
|
|
void
|
|
Box::add (Item* i)
|
|
{
|
|
if (!i) {
|
|
return;
|
|
}
|
|
|
|
Item::add (i);
|
|
queue_resize ();
|
|
}
|
|
|
|
void
|
|
Box::add_front (Item* i)
|
|
{
|
|
if (!i) {
|
|
return;
|
|
}
|
|
|
|
Item::add_front (i);
|
|
queue_resize ();
|
|
}
|
|
|
|
void
|
|
Box::layout ()
|
|
{
|
|
bool yes_do_it = _resize_queued;
|
|
|
|
Item::layout ();
|
|
|
|
if (yes_do_it) {
|
|
reposition_children ();
|
|
(void) bounding_box ();
|
|
|
|
const double w = std::max (requested_width, _bounding_box.width());
|
|
const double h = std::max (requested_height, _bounding_box.height());
|
|
|
|
set (Rect (get().x0, get().y0, get().x0 + w, get().y0 + h));
|
|
|
|
std::cerr << name << " box layed out, reset to " << get() << std::endl;
|
|
}
|
|
}
|
|
|
|
void
|
|
Box::child_changed (bool bbox_changed)
|
|
{
|
|
/* catch visibility and size changes */
|
|
|
|
if (ignore_child_changes) {
|
|
return;
|
|
}
|
|
|
|
Item::child_changed (bbox_changed);
|
|
|
|
reposition_children ();
|
|
}
|
|
|
|
void
|
|
Box::set_collapse_on_hide (bool yn)
|
|
{
|
|
if (collapse_on_hide != yn) {
|
|
collapse_on_hide = yn;
|
|
reposition_children ();
|
|
}
|
|
}
|
|
|
|
/*----*/
|
|
|
|
VBox::VBox (Canvas* c)
|
|
: Box (c, Vertical)
|
|
{
|
|
}
|
|
VBox::VBox (Item* i)
|
|
: Box (i, Vertical)
|
|
{
|
|
}
|
|
VBox::VBox (Item* i, Duple const & position)
|
|
: Box (i, position, Vertical)
|
|
{
|
|
}
|
|
|
|
HBox::HBox (Canvas* c)
|
|
: Box (c, Horizontal)
|
|
{
|
|
}
|
|
HBox::HBox (Item* i)
|
|
: Box (i, Horizontal)
|
|
{
|
|
}
|
|
HBox::HBox (Item* i, Duple const & position)
|
|
: Box (i, position, Horizontal)
|
|
{
|
|
}
|