| rsc | ed7c8e8 | 2003-09-30 17:47:42 +0000 | [diff] [blame] | 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 | } |
