win.c

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/*#*
 *#* $Log$
 *#* Revision 1.2  2006/08/01 17:26:04  batt
 *#* Update docs.
 *#*
 *#* Revision 1.1  2006/08/01 15:43:01  batt
 *#* Add in board_kd current edited channel visualization.
 *#*
 *#* Revision 1.4  2006/07/19 12:56:26  bernie
 *#* Convert to new Doxygen style.
 *#*
 *#* Revision 1.3  2006/02/10 12:25:41  bernie
 *#* Add missing header.
 *#*
 *#* Revision 1.2  2006/01/26 00:36:48  bernie
 *#* Const correctness for some new functions.
 *#*
 *#* Revision 1.1  2006/01/23 23:14:29  bernie
 *#* Implement simple, but impressive windowing system.
 *#*
 *#*/

#include "win.h"
#include <struct/list.h>

void win_compose(Window *w)
{
    Window *child;

    /*
     * Walk over all children, in back to front order and tell them
     * to compose into us.
     */
    REVERSE_FOREACH_NODE(child, &w->children)
    {
        /* Recursively compose child first. */
        win_compose(child);

        /* Draw child into our bitmap. */
        if (w->bitmap)
            gfx_blit(w->bitmap, &child->geom, child->bitmap, 0, 0);
    }
}

void win_open(Window *w, Window *parent)
{
    ASSERT(!w->parent);
    w->parent = parent;
    ADDHEAD(&parent->children, &w->link);
}

void win_close(Window *w)
{
    ASSERT(w->parent);
    REMOVE(&w->link);
    w->parent = NULL;
}

void win_raise(Window *w)
{
    ASSERT(w->parent);
    REMOVE(&w->link);
    ADDHEAD(&w->parent->children, &w->link);
}

void win_setGeometry(Window *w, const Rect *new_geom)
{
    // requires C99?
    // memcpy(&w->geom, new_geom, sizeof(w->geom));
    w->geom = *new_geom;
}

void win_move(Window *w, coord_t left, coord_t top)
{
    Rect r;

    r.xmin = left;
    r.ymin = top;
    r.xmax = r.xmin + RECT_WIDTH(&w->geom);
    r.ymax = r.ymin + RECT_WIDTH(&w->geom);

    win_setGeometry(w, &r);
}

void win_resize(Window *w, coord_t width, coord_t height)
{
    Rect r;

    r.xmin = w->geom.xmin;
    r.ymin = w->geom.ymin;
    r.xmax = r.xmin + width;
    r.ymax = r.ymin + height;

    win_setGeometry(w, &r);
}

void win_create(Window *w, Bitmap *bm)
{
    w->parent = NULL;
    w->bitmap = bm;
    w->geom.xmin = 0;
    w->geom.ymin = 0;
    if (bm)
    {
        w->geom.xmax = bm->width;
        w->geom.ymax = bm->height;
    }
    LIST_INIT(&w->children);
}