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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>
23 #include <X11/extensions/Xrender.h>
27 #include <pango/pangocairo.h>
35 // TODO : layering & drawing loop
36 1) browse tree and resize SIZE_BY_CONTENT node
37 - children node are resized before its parent
38 - if 'size' changed then 'resize = 1' on the parent
39 2) browse tree and resize SIZE_BY_LAYOUT node
40 - parent node is resized before its children
41 - if 'size' changed then 'resize = 1' on childs with SIZE_BY_LAYOUT
42 3) calculate posx of all objects
43 4) redraw needed objects
46 void refresh (Area
*a
)
48 // don't draw and resize hide objects
49 if (!a
->on_screen
) return;
54 // don't draw transparent objects (without foreground and without background)
57 // force redraw of child
59 for (l
= a
->list
; l
; l
= l
->next
)
62 //printf("draw area posx %d, width %d\n", a->posx, a->width);
67 if (a
->pix
== 0) printf("empty area posx %d, width %d\n", a
->posx
, a
->width
);
68 XCopyArea (server
.dsp
, a
->pix
, ((Panel
*)a
->panel
)->temp_pmap
, server
.gc
, 0, 0, a
->width
, a
->height
, a
->posx
, a
->posy
);
70 // and then refresh child object
72 for (l
= a
->list
; l
; l
= l
->next
)
83 // force the resize of childs
84 for (l
= a
->list
; l
; l
= l
->next
) {
85 Area
*area
= (Area
*)l
->data
;
90 // resize can generate a redraw
96 // browse tree and resize SIZE_BY_CONTENT node
97 void size_by_content (Area
*a
)
99 // children node are resized before its parent
101 for (l
= a
->list
; l
; l
= l
->next
)
102 size_by_content(l
->data
);
104 // calculate current area's size
105 if (a
->resize
&& a
->size_mode
== SIZE_BY_CONTENT
) {
108 // if 'size' changed then 'resize = 1' on the parent
110 ((Area
*)a
->parent
)->resize
= 1;
115 // browse tree and resize SIZE_BY_LAYOUT node
116 void size_by_layout (Area
*a
)
118 // parent node is resized before its children
120 // calculate current area's size
121 if (a
->resize
&& a
->size_mode
== SIZE_BY_LAYOUT
) {
124 // if 'size' changed then 'resize = 1' on the parent
126 //a->parent->resize = 1;
130 for (l
= a
->list
; l
; l
= l
->next
)
131 size_by_layout(l
->data
);
135 void set_redraw (Area
*a
)
140 for (l
= a
->list
; l
; l
= l
->next
)
147 if (a
->pix
) XFreePixmap (server
.dsp
, a
->pix
);
148 a
->pix
= XCreatePixmap (server
.dsp
, server
.root_win
, a
->width
, a
->height
, server
.depth
);
150 // add layer of root pixmap (or clear pixmap if real_transparency==true)
151 if (server
.real_transparency
)
152 clear_pixmap(a
->pix
, 0 ,0, a
->width
, a
->height
);
153 XCopyArea (server
.dsp
, ((Panel
*)a
->panel
)->temp_pmap
, a
->pix
, server
.gc
, a
->posx
, a
->posy
, a
->width
, a
->height
, 0, 0);
158 cs
= cairo_xlib_surface_create (server
.dsp
, a
->pix
, server
.visual
, a
->width
, a
->height
);
159 c
= cairo_create (cs
);
161 draw_background (a
, c
);
163 if (a
->_draw_foreground
)
164 a
->_draw_foreground(a
, c
);
167 cairo_surface_destroy (cs
);
171 void draw_background (Area
*a
, cairo_t
*c
)
173 if (a
->bg
->back
.alpha
> 0.0) {
174 //printf(" draw_background (%d %d) RGBA (%lf, %lf, %lf, %lf)\n", a->posx, a->posy, pix->back.color[0], pix->back.color[1], pix->back.color[2], pix->back.alpha);
175 draw_rect(c
, a
->bg
->border
.width
, a
->bg
->border
.width
, a
->width
-(2.0 * a
->bg
->border
.width
), a
->height
-(2.0*a
->bg
->border
.width
), a
->bg
->border
.rounded
- a
->bg
->border
.width
/1.571);
176 cairo_set_source_rgba(c
, a
->bg
->back
.color
[0], a
->bg
->back
.color
[1], a
->bg
->back
.color
[2], a
->bg
->back
.alpha
);
180 if (a
->bg
->border
.width
> 0 && a
->bg
->border
.alpha
> 0.0) {
181 cairo_set_line_width (c
, a
->bg
->border
.width
);
183 // draw border inside (x, y, width, height)
184 draw_rect(c
, a
->bg
->border
.width
/2.0, a
->bg
->border
.width
/2.0, a
->width
- a
->bg
->border
.width
, a
->height
- a
->bg
->border
.width
, a
->bg
->border
.rounded
);
186 // convert : radian = degre * M_PI/180
187 // definir le degrade dans un carre de (0,0) (100,100)
188 // ensuite ce degrade est extrapoler selon le ratio width/height
189 // dans repere (0, 0) (100, 100)
190 double X0, Y0, X1, Y1, degre;
191 // x = X * (a->width / 100), y = Y * (a->height / 100)
192 double x0, y0, x1, y1;
198 // et ensuite faire la changement d'unite du repere
199 // car ce qui doit reste inchangee est les traits et pas la direction
201 // il faut d'abord appliquer une rotation de 90 (et -180 si l'angle est superieur a 180)
202 // ceci peut etre applique une fois pour toute au depart
203 // ensuite calculer l'angle dans le nouveau repare
204 // puis faire une rotation de 90
205 x0 = X0 * ((double)a->width / 100);
206 x1 = X1 * ((double)a->width / 100);
207 y0 = Y0 * ((double)a->height / 100);
208 y1 = Y1 * ((double)a->height / 100);
210 x0 = X0 * ((double)a->height / 100);
211 x1 = X1 * ((double)a->height / 100);
212 y0 = Y0 * ((double)a->width / 100);
213 y1 = Y1 * ((double)a->width / 100);
215 cairo_pattern_t *linpat;
216 linpat = cairo_pattern_create_linear (x0, y0, x1, y1);
217 cairo_pattern_add_color_stop_rgba (linpat, 0, a->border.color[0], a->border.color[1], a->border.color[2], a->border.alpha);
218 cairo_pattern_add_color_stop_rgba (linpat, 1, a->border.color[0], a->border.color[1], a->border.color[2], 0);
219 cairo_set_source (c, linpat);
221 cairo_set_source_rgba (c
, a
->bg
->border
.color
[0], a
->bg
->border
.color
[1], a
->bg
->border
.color
[2], a
->bg
->border
.alpha
);
224 //cairo_pattern_destroy (linpat);
229 void remove_area (Area
*a
)
231 Area
*parent
= (Area
*)a
->parent
;
233 parent
->list
= g_slist_remove(parent
->list
, a
);
239 void add_area (Area
*a
)
241 Area
*parent
= (Area
*)a
->parent
;
243 parent
->list
= g_slist_remove(parent
->list
, a
);
249 void free_area (Area
*a
)
252 for (l0
= a
->list
; l0
; l0
= l0
->next
)
253 free_area (l0
->data
);
256 g_slist_free(a
->list
);
260 XFreePixmap (server
.dsp
, a
->pix
);
266 void draw_rect(cairo_t
*c
, double x
, double y
, double w
, double h
, double r
)
269 double c1
= 0.55228475 * r
;
271 cairo_move_to(c
, x
+r
, y
);
272 cairo_rel_line_to(c
, w
-2*r
, 0);
273 cairo_rel_curve_to(c
, c1
, 0.0, r
, c1
, r
, r
);
274 cairo_rel_line_to(c
, 0, h
-2*r
);
275 cairo_rel_curve_to(c
, 0.0, c1
, c1
-r
, r
, -r
, r
);
276 cairo_rel_line_to (c
, -w
+2*r
, 0);
277 cairo_rel_curve_to (c
, -c1
, 0, -r
, -c1
, -r
, -r
);
278 cairo_rel_line_to (c
, 0, -h
+ 2 * r
);
279 cairo_rel_curve_to (c
, 0, -c1
, r
- c1
, -r
, r
, -r
);
282 cairo_rectangle(c
, x
, y
, w
, h
);
286 void clear_pixmap(Pixmap p
, int x
, int y
, int w
, int h
)
288 Picture pict
= XRenderCreatePicture(server
.dsp
, p
, XRenderFindVisualFormat(server
.dsp
, server
.visual
), 0, 0);
289 XRenderColor col
= { .red
=0, .green
=0, .blue
=0, .alpha
=0 };
290 XRenderFillRectangle(server
.dsp
, PictOpSrc
, pict
, &col
, x
, y
, w
, h
);
291 XRenderFreePicture(server
.dsp
, pict
);
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