Robin Gareus
601c317d70
make libwidget independent of libcanvas. Confine basics to pbd and gtkmm2ext.
88 lines
2.3 KiB
C++
88 lines
2.3 KiB
C++
/*
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Copyright (C) 2018 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __CANVAS_GRID_H__
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#define __CANVAS_GRID_H__
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#include <map>
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#include "canvas/item.h"
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namespace ArdourCanvas
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{
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class Rectangle;
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/** Canvas container that renders its children in a grid layout
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*/
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class LIBCANVAS_API Grid : public Item
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{
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public:
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Grid (Canvas *);
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Grid (Item *);
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Grid (Item *, Duple const & position);
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void set_row_spacing (double s);
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void set_col_spacing (double s);
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void set_padding (double top, double right = -1.0, double bottom = -1.0, double left = -1.0);
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void set_margin (double top, double right = -1.0, double bottom = -1.0, double left = -1.0);
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/* aliases so that CSS box model terms work */
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void set_border_width (double w) { set_outline_width (w); }
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void set_border_color (Gtkmm2ext::Color c) { set_outline_color (c); }
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void place (Item*, double x, double y, double col_span = 1, double row_span = 1);
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void set_collapse_on_hide (bool);
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void set_homogenous (bool);
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void compute_bounding_box () const;
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void render (Rect const & area, Cairo::RefPtr<Cairo::Context> context) const;
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protected:
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double row_spacing;
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double col_spacing;
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double top_padding, right_padding, bottom_padding, left_padding;
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double top_margin, right_margin, bottom_margin, left_margin;
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void child_changed ();
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private:
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struct ChildInfo {
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Item* item;
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double x;
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double y;
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double col_span;
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double row_span;
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};
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typedef std::map<Item*,ChildInfo> CoordsByItem;
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CoordsByItem coords_by_item;
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Rectangle *bg;
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bool collapse_on_hide;
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bool homogenous;
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void reset_bg ();
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void reposition_children ();
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};
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}
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#endif
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