using namespace ArdourCanvas;
using std::vector;
using std::max;
+using std::cerr;
+using std::endl;
Grid::Grid (Canvas* canvas)
: Item (canvas)
- , spacing (0)
+ , row_spacing (0)
+ , col_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)
{
- self = new Rectangle (this);
- self->set_outline (false);
- self->set_fill (false);
+ bg = new Rectangle (this);
+ bg->set_outline (false);
+ bg->set_fill (false);
+ bg->hide ();
}
Grid::Grid (Item* parent)
: Item (parent)
- , spacing (0)
+ , row_spacing (0)
+ , col_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)
{
- self = new Rectangle (this);
- self->set_outline (false);
- self->set_fill (false);
+ bg = new Rectangle (this);
+ bg->set_outline (false);
+ bg->set_fill (false);
+ bg->hide ();
}
Grid::Grid (Item* parent, Duple const & p)
: Item (parent, p)
- , spacing (0)
+ , row_spacing (0)
+ , col_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)
+ , homogenous (true)
+{
+ bg = new Rectangle (this);
+ bg->set_outline (false);
+ bg->set_fill (false);
+ bg->hide ();
+}
+
+void
+Grid::set_homogenous (bool yn)
{
- self = new Rectangle (this);
- self->set_outline (false);
- self->set_fill (false);
+ homogenous = yn;
}
void
void
Grid::compute_bounding_box () const
{
- _bounding_box = boost::none;
+ _bounding_box = Rect();
if (_items.empty()) {
_bounding_box_dirty = false;
add_child_bounding_boxes (!collapse_on_hide);
if (_bounding_box) {
- Rect r = _bounding_box.get();
+ Rect r = _bounding_box;
- _bounding_box = r.expand (top_padding + outline_width() + top_margin,
- right_padding + outline_width() + right_margin,
- bottom_padding + outline_width() + bottom_margin,
- left_padding + outline_width() + left_margin);
+ _bounding_box = r.expand (outline_width() + top_margin + top_padding,
+ outline_width() + right_margin + right_padding,
+ outline_width() + bottom_margin + bottom_padding,
+ outline_width() + left_margin + left_padding);
}
_bounding_box_dirty = false;
}
void
-Grid::set_spacing (double s)
+Grid::set_row_spacing (double s)
{
- spacing = s;
+ row_spacing = s;
+}
+
+void
+Grid::set_col_spacing (double s)
+{
+ col_spacing = s;
}
void
}
void
-Grid::reset_self ()
+Grid::reset_bg ()
{
if (_bounding_box_dirty) {
compute_bounding_box ();
}
if (!_bounding_box) {
- self->hide ();
+ bg->hide ();
return;
}
- Rect r (_bounding_box.get());
+ Rect r (_bounding_box);
/* XXX need to shrink by margin */
- self->set (r);
+ bg->set (r);
}
void
uint32_t max_col = 0;
/* since we encourage dynamic and essentially random placement of
- * children, begin by determining the maximum row and column given
+ * children, begin by determining the maximum row and column extents given
* our current set of children and placements.
*/
for (CoordsByItem::const_iterator c = coords_by_item.begin(); c != coords_by_item.end(); ++c) {
- max_col = max (max_col, (uint32_t) c->second.x);
- max_row = max (max_row, (uint32_t) c->second.y);
+ if (collapse_on_hide && !c->second.item->visible()) {
+ continue;
+ }
+ max_col = max (max_col, (uint32_t) (c->second.x + c->second.col_span));
+ max_row = max (max_row, (uint32_t) (c->second.y + c->second.row_span));
}
/* Now compute the width of the widest child for each column, and the
- * height of the tallest child for each row.
+ * height of the tallest child for each row. Store the results in
+ * row_dimens and col_dimens, making sure they are suitably sized first.
*/
vector<double> row_dimens;
vector<double> col_dimens;
- row_dimens.assign (0, max_row);
- col_dimens.assign (0, max_col);
+ row_dimens.assign (max_row + 1, 0);
+ col_dimens.assign (max_col + 1, 0);
- for (std::list<Item*>::iterator i = _items.begin(); ++i != _items.end(); ++i) {
- boost::optional<Rect> bb = (*i)->bounding_box();
+ Rect uniform_cell_size;
- if (!bb) {
- continue;
+ if (homogenous) {
+ for (std::list<Item*>::iterator i = _items.begin(); i != _items.end(); ++i) {
+
+ if (*i == bg || (collapse_on_hide && !(*i)->visible())) {
+ continue;
+ }
+
+ Rect bb = (*i)->bounding_box();
+
+ if (!bb) {
+ continue;
+ }
+
+ CoordsByItem::const_iterator c = coords_by_item.find (*i);
+
+ uniform_cell_size.x1 = max (uniform_cell_size.x1, (bb.width()/c->second.col_span));
+ uniform_cell_size.y1 = max (uniform_cell_size.y1, (bb.height()/c->second.row_span));
}
- CoordsByItem::const_iterator c = coords_by_item.find (*i);
+ for (uint32_t n = 0; n < max_col; ++n) {
+ col_dimens[n] = uniform_cell_size.width();
+ }
+
+ for (uint32_t n = 0; n < max_row; ++n) {
+ row_dimens[n] = uniform_cell_size.height();
+ }
- row_dimens[c->second.x] = max (row_dimens[c->second.x], bb.get().width());
- col_dimens[c->second.y] = max (col_dimens[c->second.y], bb.get().height());
+ for (std::list<Item*>::iterator i = _items.begin(); i != _items.end(); ++i) {
+
+ if (*i == bg || (collapse_on_hide && !(*i)->visible())) {
+ /* bg rect is not a normal child */
+ continue;
+ }
+
+ CoordsByItem::const_iterator c = coords_by_item.find (*i);
+
+ Rect r = uniform_cell_size;
+ r.x1 *= c->second.col_span;
+ r.y1 *= c->second.row_span;
+
+ (*i)->size_allocate (r);
+ }
+
+ } else {
+ for (std::list<Item*>::iterator i = _items.begin(); i != _items.end(); ++i) {
+
+ if (*i == bg || (collapse_on_hide && !(*i)->visible())) {
+ /* bg rect is not a normal child */
+ continue;
+ }
+
+ Rect bb = (*i)->bounding_box();
+
+ if (!bb) {
+ continue;
+ }
+
+ CoordsByItem::const_iterator c = coords_by_item.find (*i);
+
+ const double per_col_width = bb.width() / c->second.col_span;
+ const double per_row_height = bb.height() / c->second.row_span;
+
+ /* set the width of each column spanned by this item
+ */
+
+ for (int n = 0; n < (int) c->second.col_span; ++n) {
+ col_dimens[c->second.x + n] = max (col_dimens[c->second.x + n], per_col_width);
+ }
+ for (int n = 0; n < (int) c->second.row_span; ++n) {
+ row_dimens[c->second.y + n] = max (row_dimens[c->second.y + n], per_row_height);
+ }
+ }
}
- /* now sum the row and column widths, so that row_dimens is transformed
- * into the y coordinate of the upper left of each row, and col_dimens
- * is transformed into the x coordinate of the left edge of each
- * column.
+ /* now progressively sum the row and column widths, once we're done:
+ *
+ * col_dimens: transformed into the x coordinate of the left edge of each column.
+ *
+ * row_dimens: transformed into the y coordinate of the upper left of each row,
+ *
*/
- double prev = row_dimens[0];
- row_dimens[0] = 0;
+ double current_right_edge = left_margin + left_padding;
- for (uint32_t n = 1; n < max_row; ++n) {
- row_dimens[n] = row_dimens[n-1] + prev;
- prev = row_dimens[n];
+ for (uint32_t n = 0; n < max_col; ++n) {
+ if (col_dimens[n]) {
+ /* a width was defined for this column */
+ const double w = col_dimens[n]; /* save width of this column */
+ col_dimens[n] = current_right_edge;
+ current_right_edge = current_right_edge + w + col_spacing;
+ }
}
- prev = col_dimens[0];
- col_dimens[0] = 0;
+ double current_top_edge = top_margin + top_padding;
- for (uint32_t n = 1; n < max_col; ++n) {
- col_dimens[n] = col_dimens[n-1] + prev;
- prev = col_dimens[n];
+ for (uint32_t n = 0; n < max_row; ++n) {
+ if (row_dimens[n]) {
+ /* height defined for this row */
+ const double h = row_dimens[n]; /* save height */
+ row_dimens[n] = current_top_edge;
+ current_top_edge = current_top_edge + h + row_spacing;
+ }
}
/* position each item at the upper left of its (row, col) coordinate,
* given the width of all rows or columns before it.
*/
- for (std::list<Item*>::iterator i = _items.begin(); ++i != _items.end(); ++i) {
+ for (std::list<Item*>::iterator i = _items.begin(); i != _items.end(); ++i) {
CoordsByItem::const_iterator c = coords_by_item.find (*i);
if (c == coords_by_item.end()) {
continue;
}
+ /* do this even for hidden items - it will be corrected when
+ * they become visible again.
+ */
+
(*i)->set_position (Duple (col_dimens[c->second.x], row_dimens[c->second.y]));
}
_bounding_box_dirty = true;
- reset_self ();
+ reset_bg ();
}
void
-Grid::place (Item* i, Duple at)
+Grid::place (Item* i, double x, double y, double col_span, double row_span)
{
+ ChildInfo ci;
+
add (i);
- coords_by_item.insert (std::make_pair (i, at));
+
+ ci.item = i;
+ ci.x = x;
+ ci.y = y;
+ ci.col_span = max (1.0, col_span);
+ ci.row_span = max (1.0, row_span);
+
+ coords_by_item.insert (std::make_pair (i, ci));
+ reposition_children ();
}
void
projects / ardour.git / blobdiff