Warning: Attempt to read property "date" on null in /usr/local/www/websvn.planix.org/blame.php on line 247

Warning: Attempt to read property "msg" on null in /usr/local/www/websvn.planix.org/blame.php on line 247
WebSVN – planix.SVN – Blame – /os/branches/feature-vt/sys/src/libdraw/egetrect.c – Rev 2

Subversion Repositories planix.SVN

Rev

Go to most recent revision | Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
2 - 1 
#include <u.h>
2 
#include <libc.h>
3 
#include <draw.h>
4 
#include <cursor.h>
5 
#include <event.h>
6 
 
7 
#define	W	Borderwidth
8 
 
9 
static Image *tmp[4];
10 
static Image *red;
11 
 
12 
static Cursor sweep={
13 
	{-7, -7},
14 
	{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xE0, 0x07,
15 
	 0xE0, 0x07, 0xE0, 0x07, 0xE3, 0xF7, 0xE3, 0xF7,
16 
	 0xE3, 0xE7, 0xE3, 0xF7, 0xE3, 0xFF, 0xE3, 0x7F,
17 
	 0xE0, 0x3F, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,},
18 
	{0x00, 0x00, 0x7F, 0xFE, 0x40, 0x02, 0x40, 0x02,
19 
	 0x40, 0x02, 0x40, 0x02, 0x40, 0x02, 0x41, 0xE2,
20 
	 0x41, 0xC2, 0x41, 0xE2, 0x41, 0x72, 0x40, 0x38,
21 
	 0x40, 0x1C, 0x40, 0x0E, 0x7F, 0xE6, 0x00, 0x00,}
22 
};
23 
 
24 
static
25 
void
26 
brects(Rectangle r, Rectangle rp[4])
27 
{
28 
	if(Dx(r) < 2*W)
29 
		r.max.x = r.min.x+2*W;
30 
	if(Dy(r) < 2*W)
31 
		r.max.y = r.min.y+2*W;
32 
	rp[0] = Rect(r.min.x, r.min.y, r.max.x, r.min.y+W);
33 
	rp[1] = Rect(r.min.x, r.max.y-W, r.max.x, r.max.y);
34 
	rp[2] = Rect(r.min.x, r.min.y+W, r.min.x+W, r.max.y-W);
35 
	rp[3] = Rect(r.max.x-W, r.min.y+W, r.max.x, r.max.y-W);
36 
}
37 
 
38 
Rectangle
39 
egetrect(int but, Mouse *m)
40 
{
41 
	Rectangle r, rc;
42 
 
43 
	but = 1<<(but-1);
44 
	esetcursor(&sweep);
45 
	while(m->buttons)
46 
		*m = emouse();
47 
	while(!(m->buttons & but)){
48 
		*m = emouse();
49 
		if(m->buttons & (7^but))
50 
			goto Return;
51 
	}
52 
	r.min = m->xy;
53 
	r.max = m->xy;
54 
	do{
55 
		rc = canonrect(r);
56 
		edrawgetrect(rc, 1);
57 
		*m = emouse();
58 
		edrawgetrect(rc, 0);
59 
		r.max = m->xy;
60 
	}while(m->buttons == but);
61 
 
62 
    Return:
63 
	esetcursor(0);
64 
	if(m->buttons & (7^but)){
65 
		rc.min.x = rc.max.x = 0;
66 
		rc.min.y = rc.max.y = 0;
67 
		while(m->buttons)
68 
			*m = emouse();
69 
	}
70 
	return rc;
71 
}
72 
 
73 
static
74 
void
75 
freetmp(void)
76 
{
77 
	freeimage(tmp[0]);
78 
	freeimage(tmp[1]);
79 
	freeimage(tmp[2]);
80 
	freeimage(tmp[3]);
81 
	freeimage(red);
82 
	tmp[0] = tmp[1] = tmp[2] = tmp[3] = red = nil;
83 
}
84 
 
85 
void
86 
edrawgetrect(Rectangle rc, int up)
87 
{
88 
	int i;
89 
	Rectangle r, rects[4];
90 
 
91 
	if(up && tmp[0]!=nil)
92 
		if(Dx(tmp[0]->r)<Dx(rc) || Dy(tmp[2]->r)<Dy(rc))
93 
			freetmp();
94 
 
95 
	if(tmp[0] == 0){
96 
		r = Rect(0, 0, Dx(screen->r), W);
97 
		tmp[0] = allocimage(display, r, screen->chan, 0, -1);
98 
		tmp[1] = allocimage(display, r, screen->chan, 0, -1);
99 
		r = Rect(0, 0, W, Dy(screen->r));
100 
		tmp[2] = allocimage(display, r, screen->chan, 0, -1);
101 
		tmp[3] = allocimage(display, r, screen->chan, 0, -1);
102 
		red = allocimage(display, Rect(0,0,1,1), screen->chan, 1, DRed);
103 
		if(tmp[0]==0 || tmp[1]==0 || tmp[2]==0 || tmp[3]==0 || red==0)
104 
			drawerror(display, "getrect: allocimage failed");
105 
	}
106 
	brects(rc, rects);
107 
	if(!up){
108 
		for(i=0; i<4; i++)
109 
			draw(screen, rects[i], tmp[i], nil, ZP);
110 
		return;
111 
	}
112 
	for(i=0; i<4; i++){
113 
		draw(tmp[i], Rect(0, 0, Dx(rects[i]), Dy(rects[i])), screen, nil, rects[i].min);
114 
		draw(screen, rects[i], red, nil, ZP);
115 
	}
116 
}