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Dogcows Code - chaz/tint2/blob - src/util/area.c
1 /**************************************************************************
5 * Copyright (C) 2008 thierry lorthiois (lorthiois@bbsoft.fr)
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License version 2
9 * as published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
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.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
18 **************************************************************************/
21 #include <X11/Xutil.h>
22 #include <X11/Xatom.h>
33 void refresh (Area
*a
)
42 XCopyArea (server
.dsp
, a
->pmap
, server
.pmap
, server
.gc
, 0, 0, a
->width
, a
->height
, a
->posx
, a
->posy
);
45 // refresh child object (after refreshing parent)
46 for (; l
; l
= l
->next
)
49 //printf("end refresh area\n");
53 void set_redraw (Area
*a
)
58 for (l
= a
->list
; l
; l
= l
->next
)
68 //printf("begin draw area\n");
69 if (a
->pmap
) XFreePixmap (server
.dsp
, a
->pmap
);
70 a
->pmap
= server_create_pixmap (a
->width
, a
->height
);
72 // add layer of root pixmap
73 XCopyArea (server
.dsp
, server
.pmap
, a
->pmap
, server
.gc
, a
->posx
, a
->posy
, a
->width
, a
->height
, 0, 0);
75 cs
= cairo_xlib_surface_create (server
.dsp
, a
->pmap
, server
.visual
, a
->width
, a
->height
);
76 c
= cairo_create (cs
);
78 draw_background (a
, c
);
80 if (a
->draw_foreground
)
81 a
->draw_foreground(a
, c
);
84 cairo_surface_destroy (cs
);
89 void draw_background (Area
*a
, cairo_t
*c
)
91 if (a
->back
.alpha
> 0.0) {
92 //printf(" draw_background %d %d\n", a->width, a->height);
93 draw_rect(c
, a
->border
.width
, a
->border
.width
, a
->width
-(2.0 * a
->border
.width
), a
->height
-(2.0*a
->border
.width
), a
->border
.rounded
- a
->border
.width
/1.571);
94 cairo_set_source_rgba(c
, a
->back
.color
[0], a
->back
.color
[1], a
->back
.color
[2], a
->back
.alpha
);
99 if (a
->border
.width
> 0 && a
->border
.alpha
> 0.0) {
100 cairo_set_line_width (c
, a
->border
.width
);
102 // draw border inside (x, y, width, height)
103 draw_rect(c
, a
->border
.width
/2.0, a
->border
.width
/2.0, a
->width
- a
->border
.width
, a
->height
- a
->border
.width
, a
->border
.rounded
);
105 // convert : radian = degre * M_PI/180
106 // définir le dégradé dans un carré de (0,0) (100,100)
107 // ensuite ce dégradé est extrapolé selon le ratio width/height
108 // dans repère (0, 0) (100, 100)
109 double X0, Y0, X1, Y1, degre;
110 // x = X * (a->width / 100), y = Y * (a->height / 100)
111 double x0, y0, x1, y1;
117 // et ensuite faire la changement d'unité du repère
118 // car ce qui doit resté inchangée est les traits et pas la direction
120 // il faut d'abord appliquer une rotation de 90° (et -180° si l'angle est supérieur à 180°)
121 // ceci peut être appliqué une fois pour toute au départ
122 // ensuite calculer l'angle dans le nouveau repère
123 // puis faire une rotation de 90°
124 x0 = X0 * ((double)a->width / 100);
125 x1 = X1 * ((double)a->width / 100);
126 y0 = Y0 * ((double)a->height / 100);
127 y1 = Y1 * ((double)a->height / 100);
129 x0 = X0 * ((double)a->height / 100);
130 x1 = X1 * ((double)a->height / 100);
131 y0 = Y0 * ((double)a->width / 100);
132 y1 = Y1 * ((double)a->width / 100);
133 printf("repère (%d, %d) points (%lf, %lf) (%lf, %lf)\n", a->width, a->height, x0, y0, x1, y1);
135 cairo_pattern_t *linpat;
136 linpat = cairo_pattern_create_linear (x0, y0, x1, y1);
137 cairo_pattern_add_color_stop_rgba (linpat, 0, a->border.color[0], a->border.color[1], a->border.color[2], a->border.alpha);
138 cairo_pattern_add_color_stop_rgba (linpat, 1, a->border.color[0], a->border.color[1], a->border.color[2], 0);
139 cairo_set_source (c, linpat);
141 cairo_set_source_rgba (c
, a
->border
.color
[0], a
->border
.color
[1], a
->border
.color
[2], a
->border
.alpha
);
144 //cairo_pattern_destroy (linpat);
149 void remove_area (Area
*a
)
153 parent
= (Area
*)a
->parent
;
154 parent
->list
= g_slist_remove(parent
->list
, a
);
160 void add_area (Area
*a
)
164 parent
= (Area
*)a
->parent
;
165 parent
->list
= g_slist_remove(parent
->list
, a
);
171 void free_area (Area
*a
)
174 for (l0
= a
->list
; l0
; l0
= l0
->next
)
175 free_area (l0
->data
);
178 g_slist_free(a
->list
);
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