1 |
#ifndef IMG_H), |
2 |
#define IMG_H |
3 |
|
4 |
#if HAVE_BG_PIXMAP |
5 |
#define HAVE_IMG 1 |
6 |
#endif |
7 |
|
8 |
#if HAVE_IMG |
9 |
|
10 |
#define float_to_component(d) (int32_t)((d) * 65535.99) |
11 |
|
12 |
#include <X11/extensions/Xrender.h> |
13 |
|
14 |
class rxvt_img |
15 |
{ |
16 |
void destroy (); |
17 |
Picture picture (); |
18 |
|
19 |
public: |
20 |
typedef double nv; |
21 |
|
22 |
// *could* also hold the Pixmap itself |
23 |
struct pixref |
24 |
{ |
25 |
int cnt; |
26 |
int w, h; |
27 |
bool ours; // false if we don't own the pixmap at all |
28 |
|
29 |
pixref (int w, int h) |
30 |
: cnt(1), w(w), h(h), ours(true) |
31 |
{ |
32 |
} |
33 |
}; |
34 |
|
35 |
rxvt_screen *s; |
36 |
Pixmap pm; |
37 |
pixref *ref; // shared refcnt |
38 |
int x, y, w, h, repeat; |
39 |
XRenderPictFormat *format; |
40 |
|
41 |
rxvt_img (rxvt_screen *screen, XRenderPictFormat *format, int x, int y, int width, int height, int repeat = RepeatNormal); |
42 |
rxvt_img (const rxvt_img &img); |
43 |
void alloc (); |
44 |
|
45 |
# if HAVE_PIXBUF |
46 |
static rxvt_img *new_from_pixbuf (rxvt_screen *s, GdkPixbuf *pb); // from pixbuf |
47 |
static rxvt_img *new_from_file (rxvt_screen *s, const char *filename); // via pixbuf |
48 |
# endif |
49 |
static rxvt_img *new_from_root (rxvt_screen *s); // get root pixmap |
50 |
|
51 |
~rxvt_img (); |
52 |
|
53 |
Pixmap steal () |
54 |
{ |
55 |
ref->ours = false; |
56 |
return pm; |
57 |
} |
58 |
|
59 |
// inplace |
60 |
void move (int dx, int dy) |
61 |
{ |
62 |
x += dx; |
63 |
y += dy; |
64 |
} |
65 |
|
66 |
void repeat_mode (int repeat) |
67 |
{ |
68 |
this->repeat = repeat; |
69 |
} |
70 |
|
71 |
void unshare (); // prepare for write |
72 |
void fill (const rgba &c); |
73 |
void add_alpha (); |
74 |
//void linear_gradient (const XLinearGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
75 |
//void radial_gradient (const XRadialGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
76 |
//void conical_gradient (const XConicalGradient *gradient, const XFixed *stops, const XRenderColor *colors, int nstops); |
77 |
void brightness (int32_t r, int32_t g, int32_t b, int32_t a); |
78 |
void contrast (int32_t r, int32_t g, int32_t b, int32_t a); |
79 |
|
80 |
void brightness (nv r, nv g, nv b, nv a = 1.) |
81 |
{ |
82 |
brightness (float_to_component (r), |
83 |
float_to_component (g), |
84 |
float_to_component (b), |
85 |
float_to_component (a)); |
86 |
} |
87 |
|
88 |
void contrast (nv r, nv g, nv b, nv a = 1.) |
89 |
{ |
90 |
contrast (float_to_component (r), |
91 |
float_to_component (g), |
92 |
float_to_component (b), |
93 |
float_to_component (a)); |
94 |
} |
95 |
|
96 |
void draw (rxvt_img *img, int op = PictOpOver, nv mask = 1.); |
97 |
|
98 |
// copy |
99 |
rxvt_img *reify (); // make x, y 0, make real width/height |
100 |
rxvt_img *blur (int rh, int rv); |
101 |
rxvt_img *clone (); |
102 |
rxvt_img *sub_rect (int x, int y, int width, int height); |
103 |
rxvt_img *transform (nv matrix[3][3]); |
104 |
rxvt_img *scale (int new_width, int new_height); |
105 |
rxvt_img *rotate (int cx, int cy, nv phi); |
106 |
rxvt_img *convert_format (XRenderPictFormat *format, const rgba &bg); |
107 |
rxvt_img *blend (rxvt_img *img, nv factor = 1.); |
108 |
|
109 |
// egregiuous helper category |
110 |
rxvt_img *replace (rxvt_img *&p) |
111 |
{ |
112 |
delete p; |
113 |
p = this; |
114 |
return this; |
115 |
} |
116 |
}; |
117 |
|
118 |
#endif |
119 |
|
120 |
#endif |
121 |
|