1 /**************************************************************************
3 * Copyright (C) 2009 Andreas.Fink (Andreas.Fink85@gmail.com)
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program; if not, write to the Free Software
15 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
16 **************************************************************************/
21 #include <cairo-xlib.h>
28 static int x
, y
, width
, height
;
30 // the next functions are helper functions for tooltip handling
31 void start_show_timeout();
32 void start_hide_timeout();
35 // give the tooltip some reasonable default values
39 .show_timeout
= { 0, 0 },
40 .hide_timeout
= { 0, 0 },
45 .font_color
= { .color
={1, 1, 1}, .alpha
=1 },
46 .background_color
= { .color
={0.5, 0.4, 0.5}, .alpha
=1 },
47 .border
= { .color
={0, 0, 0}, .alpha
=1, .width
=1, .rounded
=0 },
55 if (!g_tooltip
.font_desc
)
56 g_tooltip
.font_desc
= pango_font_description_from_string("sans 10");
58 if (g_tooltip
.show_timer_id
== 0)
59 g_tooltip
.show_timer_id
= install_timer(0, 0, 0, 0, tooltip_show
);
60 if (g_tooltip
.hide_timer_id
== 0)
61 g_tooltip
.hide_timer_id
= install_timer(0, 0, 0, 0, tooltip_hide
);
63 XSetWindowAttributes attr
;
64 attr
.override_redirect
= True
;
65 attr
.event_mask
= ExposureMask
;
66 if (g_tooltip
.window
) XDestroyWindow(server
.dsp
, g_tooltip
.window
);
67 g_tooltip
.window
= XCreateWindow(server
.dsp
, server
.root_win
, 0, 0, 100, 20, 0, server
.depth
, InputOutput
, CopyFromParent
, CWOverrideRedirect
|CWEventMask
, &attr
);
71 void cleanup_tooltip()
75 g_tooltip
.enabled
= False
;
79 if (g_tooltip
.window
) {
80 XDestroyWindow(server
.dsp
, g_tooltip
.window
);
83 if (g_tooltip
.font_desc
) {
84 pango_font_description_free(g_tooltip
.font_desc
);
85 g_tooltip
.font_desc
= 0;
90 void tooltip_trigger_show(Task
* task
, int x_root
, int y_root
)
95 if (g_tooltip
.mapped
&& g_tooltip
.task
!= task
) {
96 g_tooltip
.task
= task
;
100 else if (!g_tooltip
.mapped
) {
101 g_tooltip
.task
= task
;
102 start_show_timeout();
109 if (!g_tooltip
.mapped
) {
110 g_tooltip
.mapped
= True
;
111 XMapWindow(server
.dsp
, g_tooltip
.window
);
117 void tooltip_update_geometry()
122 cs
= cairo_xlib_surface_create(server
.dsp
, g_tooltip
.window
, server
.visual
, width
, height
);
123 c
= cairo_create(cs
);
124 layout
= pango_cairo_create_layout(c
);
125 pango_layout_set_font_description(layout
, g_tooltip
.font_desc
);
126 pango_layout_set_text(layout
, g_tooltip
.task
->title
, -1);
127 PangoRectangle r1
, r2
;
128 pango_layout_get_pixel_extents(layout
, &r1
, &r2
);
129 width
= 2*g_tooltip
.border
.width
+ 2*g_tooltip
.paddingx
+ r2
.width
;
130 height
= 2*g_tooltip
.border
.width
+ 2*g_tooltip
.paddingy
+ r2
.height
;
132 Panel
* panel
= g_tooltip
.task
->area
.panel
;
133 if (panel_horizontal
&& panel_position
& BOTTOM
)
134 y
= panel
->posy
-height
;
135 else if (panel_horizontal
&& panel_position
& TOP
)
136 y
= panel
->posy
+ panel
->area
.height
;
137 else if (panel_position
& LEFT
)
138 x
= panel
->posx
+ panel
->area
.width
;
140 x
= panel
->posx
- width
;
142 g_object_unref(layout
);
144 cairo_surface_destroy(cs
);
148 void tooltip_adjust_geometry()
150 // adjust coordinates and size to not go offscreen
151 // it seems quite impossible that the height needs to be adjusted, but we do it anyway.
153 int min_x
, min_y
, max_width
, max_height
;
154 Panel
* panel
= g_tooltip
.task
->area
.panel
;
155 int screen_width
= server
.monitor
[panel
->monitor
].x
+ server
.monitor
[panel
->monitor
].width
;
156 int screen_height
= server
.monitor
[panel
->monitor
].y
+ server
.monitor
[panel
->monitor
].height
;
157 if ( x
+width
<= screen_width
&& y
+height
<= screen_height
&& x
>=0 && y
>=0)
158 return; // no adjustment needed
160 if (panel_horizontal
) {
162 max_width
=screen_width
;
163 max_height
=screen_height
-panel
->area
.height
;
164 if (panel_position
& BOTTOM
)
167 min_y
=panel
->area
.height
;
170 max_width
=screen_width
-panel
->area
.width
;
172 max_height
=screen_height
;
173 if (panel_position
& LEFT
)
174 min_x
=panel
->area
.width
;
179 if (x
+width
> server
.monitor
[panel
->monitor
].x
+ server
.monitor
[panel
->monitor
].width
)
180 x
= server
.monitor
[panel
->monitor
].x
+ server
.monitor
[panel
->monitor
].width
- width
;
181 if ( y
+height
> server
.monitor
[panel
->monitor
].y
+ server
.monitor
[panel
->monitor
].height
)
182 y
= server
.monitor
[panel
->monitor
].y
+ server
.monitor
[panel
->monitor
].height
- height
;
190 if (height
>max_height
)
194 void tooltip_update()
196 if (!g_tooltip
.task
) {
201 //printf("tooltip_update\n");
202 tooltip_update_geometry();
203 tooltip_adjust_geometry();
204 XMoveResizeWindow(server
.dsp
, g_tooltip
.window
, x
, y
, width
, height
);
206 // Stuff for drawing the tooltip
210 cs
= cairo_xlib_surface_create(server
.dsp
, g_tooltip
.window
, server
.visual
, width
, height
);
211 c
= cairo_create(cs
);
212 Color bc
= g_tooltip
.background_color
;
213 cairo_rectangle(c
, 0, 0, width
, height
);
214 cairo_set_source_rgb(c
, bc
.color
[0], bc
.color
[1], bc
.color
[2]);
216 Border b
= g_tooltip
.border
;
217 cairo_set_source_rgba(c
, b
.color
[0], b
.color
[1], b
.color
[2], b
.alpha
);
218 cairo_set_line_width(c
, b
.width
);
219 cairo_rectangle(c
, b
.width
/2.0, b
.width
/2.0, width
-b
.width
, height
-b
.width
);
222 config_color fc
= g_tooltip
.font_color
;
223 cairo_set_source_rgba(c
, fc
.color
[0], fc
.color
[1], fc
.color
[2], fc
.alpha
);
224 layout
= pango_cairo_create_layout(c
);
225 pango_layout_set_font_description(layout
, g_tooltip
.font_desc
);
226 pango_layout_set_text(layout
, g_tooltip
.task
->title
, -1);
227 PangoRectangle r1
, r2
;
228 pango_layout_get_pixel_extents(layout
, &r1
, &r2
);
229 pango_layout_set_width(layout
, width
*PANGO_SCALE
);
230 pango_layout_set_height(layout
, height
*PANGO_SCALE
);
231 pango_layout_set_ellipsize(layout
, PANGO_ELLIPSIZE_END
);
232 // I do not know why this is the right way, but with the below cairo_move_to it seems to be centered (horiz. and vert.)
233 cairo_move_to(c
, -r1
.x
/2+g_tooltip
.border
.width
+g_tooltip
.paddingx
, -r1
.y
/2+g_tooltip
.border
.width
+g_tooltip
.paddingy
);
234 pango_cairo_show_layout (c
, layout
);
236 g_object_unref (layout
);
238 cairo_surface_destroy (cs
);
242 void tooltip_trigger_hide(Tooltip
* tooltip
)
244 if (g_tooltip
.mapped
) {
246 start_hide_timeout();
249 // tooltip not visible yet, but maybe a timeout is still pending
257 if (g_tooltip
.mapped
) {
258 g_tooltip
.mapped
= False
;
259 XUnmapWindow(server
.dsp
, g_tooltip
.window
);
264 void start_show_timeout()
266 reset_timer(g_tooltip
.hide_timer_id
, 0, 0, 0, 0);
267 struct timespec t
= g_tooltip
.show_timeout
;
268 if (t
.tv_sec
== 0 && t
.tv_nsec
== 0)
271 reset_timer(g_tooltip
.show_timer_id
, t
.tv_sec
, t
.tv_nsec
, 0, 0);
275 void start_hide_timeout()
277 reset_timer(g_tooltip
.show_timer_id
, 0, 0, 0, 0);
278 struct timespec t
= g_tooltip
.hide_timeout
;
279 if (t
.tv_sec
== 0 && t
.tv_nsec
== 0)
282 reset_timer(g_tooltip
.hide_timer_id
, t
.tv_sec
, t
.tv_nsec
, 0, 0);
287 reset_timer(g_tooltip
.show_timer_id
, 0, 0, 0, 0);
288 reset_timer(g_tooltip
.hide_timer_id
, 0, 0, 0, 0);