4 * This file is part of BeRTOS.
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
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18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 * As a special exception, you may use this file as part of a free software
21 * library without restriction. Specifically, if other files instantiate
22 * templates or use macros or inline functions from this file, or you compile
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27 * the GNU General Public License.
29 * Copyright 2006 Develer S.r.l. (http://www.develer.com/)
35 * \author Bernie Innocenti <bernie@codewiz.org>
37 * \brief Very simple hierarchical windowing system.
39 * All functions in this module are to be intended as methods
40 * of the Window class. Please see its documentation
41 * for a module-wise introduction.
48 *#* Revision 1.2 2006/08/01 17:26:04 batt
51 *#* Revision 1.1 2006/08/01 15:43:01 batt
52 *#* Add in board_kd current edited channel visualization.
54 *#* Revision 1.4 2006/07/19 12:56:26 bernie
55 *#* Convert to new Doxygen style.
57 *#* Revision 1.3 2006/02/10 12:25:41 bernie
58 *#* Add missing header.
60 *#* Revision 1.2 2006/01/26 00:36:48 bernie
61 *#* Const correctness for some new functions.
63 *#* Revision 1.1 2006/01/23 23:14:29 bernie
64 *#* Implement simple, but impressive windowing system.
69 #include <struct/list.h>
72 * Map the contents of all child-windows into the bitmap of \a w.
74 * \note Recursively drawing children into their parent
75 * effectively damages the parent buffer.
77 void win_compose(Window *w)
82 * Walk over all children, in back to front order and tell them
85 REVERSE_FOREACH_NODE(child, &w->children)
87 /* Recursively compose child first. */
90 /* Draw child into our bitmap. */
92 gfx_blit(w->bitmap, &child->geom, child->bitmap, 0, 0);
97 * Map window \a w into \a parent.
99 * The new window becomes the topmost window.
101 * \note Opening a window twice is illegal.
105 void win_open(Window *w, Window *parent)
109 ADDHEAD(&parent->children, &w->link);
113 * Detach window from its parent.
115 * Closing a window causes it to become orphan of its
116 * parent. Its content will no longer appear in its
117 * parent after the next refresh cycle.
119 * \note Closing a window that has not been previously
124 void win_close(Window *w)
132 * Move window to the topmost position relative to its sibling.
134 * \see win_move(), win_resize(), win_setGeometry()
136 void win_raise(Window *w)
140 ADDHEAD(&w->parent->children, &w->link);
144 * Set window position and size at the same time.
146 * This function is equivalent to subsequent calls to win_move()
147 * and win_resize() using the coordinates provided by the
148 * \a new_geom rectangle.
150 * \note The xmax and ymax members of \a new_geom are non-inclusive,
151 * as usual for the Rect interface.
156 void win_setGeometry(Window *w, const Rect *new_geom)
159 // memcpy(&w->geom, new_geom, sizeof(w->geom));
164 * Move window to specified position.
166 * Move the window top-left corner to the pixel coordinates
167 * \a left and \a top, which are relative to the parent window.
169 * \note A window can also be moved outside the borders
170 * of its parent, or at negative coordinates.
172 * \note It is allowed to move an orphan window.
174 void win_move(Window *w, coord_t left, coord_t top)
180 r.xmax = r.xmin + RECT_WIDTH(&w->geom);
181 r.ymax = r.ymin + RECT_WIDTH(&w->geom);
183 win_setGeometry(w, &r);
187 * Resize the rectangle of a window.
189 * The window shrinks or grows to the specified size.
191 * \note Growing a window beyond the size of its
192 * backing bitmap results in unspecified behavior.
194 * \note It is allowed to resize an orphan window.
196 void win_resize(Window *w, coord_t width, coord_t height)
200 r.xmin = w->geom.xmin;
201 r.ymin = w->geom.ymin;
202 r.xmax = r.xmin + width;
203 r.ymax = r.ymin + height;
205 win_setGeometry(w, &r);
209 * Initialize a new window structure.
211 * The new window initial position is set to (0,0).
212 * The size is set to the size of the installed bitmap,
213 * or (0,0) if there's no backing store.
215 * \arg bm The bitmap to install as backing store
216 * for drawing into the window, or NULL if
217 * the window is not drawable.
219 void win_create(Window *w, Bitmap *bm)
227 w->geom.xmax = bm->width;
228 w->geom.ymax = bm->height;
230 LIST_INIT(&w->children);