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 **************************************************************************/
23 #include <cairo-xlib.h>
30 static int x
, y
, width
, height
;
32 // the next functions are helper functions for tooltip handling
33 void start_show_timeout();
34 void start_hide_timeout();
35 void stop_tooltip_timeout();
36 void tooltip_copy_text(Area
* area
);
38 // give the tooltip some reasonable default values
44 .show_timeout_msec
= 0,
45 .hide_timeout_msec
= 0,
50 .font_color
= { .color
={1, 1, 1}, .alpha
=1 },
51 .background_color
= { .color
={0.5, 0.4, 0.5}, .alpha
=1 },
52 .border
= { .color
={0, 0, 0}, .alpha
=1, .width
=1, .rounded
=0 },
59 if (!g_tooltip
.font_desc
)
60 g_tooltip
.font_desc
= pango_font_description_from_string("sans 10");
62 XSetWindowAttributes attr
;
63 attr
.override_redirect
= True
;
64 attr
.event_mask
= StructureNotifyMask
;
65 attr
.colormap
= server
.colormap
;
66 attr
.background_pixel
= 0;
67 attr
.border_pixel
= 0;
68 unsigned long mask
= CWEventMask
|CWColormap
|CWBorderPixel
|CWBackPixel
|CWOverrideRedirect
;
69 if (g_tooltip
.window
) XDestroyWindow(server
.dsp
, g_tooltip
.window
);
70 g_tooltip
.window
= XCreateWindow(server
.dsp
, server
.root_win
, 0, 0, 100, 20, 0, server
.depth
, InputOutput
, server
.visual
, mask
, &attr
);
74 void cleanup_tooltip()
76 stop_tooltip_timeout();
78 g_tooltip
.enabled
= False
;
80 if (g_tooltip
.window
) {
81 XDestroyWindow(server
.dsp
, g_tooltip
.window
);
84 if (g_tooltip
.font_desc
) {
85 pango_font_description_free(g_tooltip
.font_desc
);
86 g_tooltip
.font_desc
= 0;
91 void tooltip_trigger_show(Area
* area
, Panel
* p
, int x_root
, int y_root
)
96 if (g_tooltip
.mapped
&& g_tooltip
.area
!= area
) {
97 tooltip_copy_text(area
);
99 stop_tooltip_timeout();
101 else if (!g_tooltip
.mapped
) {
102 start_show_timeout();
107 void tooltip_show(void* arg
)
111 XTranslateCoordinates( server
.dsp
, server
.root_win
, g_tooltip
.panel
->main_win
, x
, y
, &mx
, &my
, &w
);
112 Area
* area
= click_area(g_tooltip
.panel
, mx
, my
);
113 stop_tooltip_timeout();
114 if (!g_tooltip
.mapped
&& area
->_get_tooltip_text
) {
115 tooltip_copy_text(area
);
116 g_tooltip
.mapped
= True
;
117 XMapWindow(server
.dsp
, g_tooltip
.window
);
123 void tooltip_update_geometry()
128 cs
= cairo_xlib_surface_create(server
.dsp
, g_tooltip
.window
, server
.visual
, width
, height
);
129 c
= cairo_create(cs
);
130 layout
= pango_cairo_create_layout(c
);
131 pango_layout_set_font_description(layout
, g_tooltip
.font_desc
);
132 pango_layout_set_text(layout
, g_tooltip
.tooltip_text
, -1);
133 PangoRectangle r1
, r2
;
134 pango_layout_get_pixel_extents(layout
, &r1
, &r2
);
135 width
= 2*g_tooltip
.border
.width
+ 2*g_tooltip
.paddingx
+ r2
.width
;
136 height
= 2*g_tooltip
.border
.width
+ 2*g_tooltip
.paddingy
+ r2
.height
;
138 Panel
* panel
= g_tooltip
.panel
;
139 if (panel_horizontal
&& panel_position
& BOTTOM
)
140 y
= panel
->posy
-height
;
141 else if (panel_horizontal
&& panel_position
& TOP
)
142 y
= panel
->posy
+ panel
->area
.height
;
143 else if (panel_position
& LEFT
)
144 x
= panel
->posx
+ panel
->area
.width
;
146 x
= panel
->posx
- width
;
148 g_object_unref(layout
);
150 cairo_surface_destroy(cs
);
154 void tooltip_adjust_geometry()
156 // adjust coordinates and size to not go offscreen
157 // it seems quite impossible that the height needs to be adjusted, but we do it anyway.
159 int min_x
, min_y
, max_width
, max_height
;
160 Panel
* panel
= g_tooltip
.panel
;
161 int screen_width
= server
.monitor
[panel
->monitor
].x
+ server
.monitor
[panel
->monitor
].width
;
162 int screen_height
= server
.monitor
[panel
->monitor
].y
+ server
.monitor
[panel
->monitor
].height
;
163 if ( x
+width
<= screen_width
&& y
+height
<= screen_height
&& x
>=0 && y
>=0)
164 return; // no adjustment needed
166 if (panel_horizontal
) {
168 max_width
=screen_width
;
169 max_height
=screen_height
-panel
->area
.height
;
170 if (panel_position
& BOTTOM
)
173 min_y
=panel
->area
.height
;
176 max_width
=screen_width
-panel
->area
.width
;
178 max_height
=screen_height
;
179 if (panel_position
& LEFT
)
180 min_x
=panel
->area
.width
;
185 if (x
+width
> server
.monitor
[panel
->monitor
].x
+ server
.monitor
[panel
->monitor
].width
)
186 x
= server
.monitor
[panel
->monitor
].x
+ server
.monitor
[panel
->monitor
].width
- width
;
187 if ( y
+height
> server
.monitor
[panel
->monitor
].y
+ server
.monitor
[panel
->monitor
].height
)
188 y
= server
.monitor
[panel
->monitor
].y
+ server
.monitor
[panel
->monitor
].height
- height
;
196 if (height
>max_height
)
200 void tooltip_update()
202 if (!g_tooltip
.tooltip_text
) {
207 tooltip_update_geometry();
208 tooltip_adjust_geometry();
209 XMoveResizeWindow(server
.dsp
, g_tooltip
.window
, x
, y
, width
, height
);
211 // Stuff for drawing the tooltip
215 cs
= cairo_xlib_surface_create(server
.dsp
, g_tooltip
.window
, server
.visual
, width
, height
);
216 c
= cairo_create(cs
);
217 Color bc
= g_tooltip
.background_color
;
218 Border b
= g_tooltip
.border
;
219 if (real_transparency
) {
220 clear_pixmap(g_tooltip
.window
, 0, 0, width
, height
);
221 draw_rect(c
, b
.width
, b
.width
, width
-2*b
.width
, height
-2*b
.width
, b
.rounded
-b
.width
/1.571);
222 cairo_set_source_rgba(c
, bc
.color
[0], bc
.color
[1], bc
.color
[2], bc
.alpha
);
225 cairo_rectangle(c
, 0., 0, width
, height
);
226 cairo_set_source_rgb(c
, bc
.color
[0], bc
.color
[1], bc
.color
[2]);
229 cairo_set_line_width(c
, b
.width
);
230 if (real_transparency
) draw_rect(c
, b
.width
/2.0, b
.width
/2.0, width
- b
.width
, height
- b
.width
, b
.rounded
);
231 else cairo_rectangle(c
, b
.width
/2.0, b
.width
/2.0, width
-b
.width
, height
-b
.width
);
232 cairo_set_source_rgba(c
, b
.color
[0], b
.color
[1], b
.color
[2], b
.alpha
);
235 config_color fc
= g_tooltip
.font_color
;
236 cairo_set_source_rgba(c
, fc
.color
[0], fc
.color
[1], fc
.color
[2], fc
.alpha
);
237 layout
= pango_cairo_create_layout(c
);
238 pango_layout_set_font_description(layout
, g_tooltip
.font_desc
);
239 pango_layout_set_text(layout
, g_tooltip
.tooltip_text
, -1);
240 PangoRectangle r1
, r2
;
241 pango_layout_get_pixel_extents(layout
, &r1
, &r2
);
242 pango_layout_set_width(layout
, width
*PANGO_SCALE
);
243 pango_layout_set_height(layout
, height
*PANGO_SCALE
);
244 pango_layout_set_ellipsize(layout
, PANGO_ELLIPSIZE_END
);
245 // 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.)
246 cairo_move_to(c
, -r1
.x
/2+g_tooltip
.border
.width
+g_tooltip
.paddingx
, -r1
.y
/2+g_tooltip
.border
.width
+g_tooltip
.paddingy
);
247 pango_cairo_show_layout (c
, layout
);
249 g_object_unref (layout
);
251 cairo_surface_destroy (cs
);
255 void tooltip_trigger_hide(Tooltip
* tooltip
)
257 if (g_tooltip
.mapped
) {
258 tooltip_copy_text(0);
259 start_hide_timeout();
262 // tooltip not visible yet, but maybe a timeout is still pending
263 stop_tooltip_timeout();
268 void tooltip_hide(void* arg
)
270 stop_tooltip_timeout();
271 if (g_tooltip
.mapped
) {
272 g_tooltip
.mapped
= False
;
273 XUnmapWindow(server
.dsp
, g_tooltip
.window
);
279 void start_show_timeout()
281 if (g_tooltip
.timeout
)
282 change_timeout(g_tooltip
.timeout
, g_tooltip
.show_timeout_msec
, 0, tooltip_show
, 0);
284 g_tooltip
.timeout
= add_timeout(g_tooltip
.show_timeout_msec
, 0, tooltip_show
, 0);
288 void start_hide_timeout()
290 if (g_tooltip
.timeout
)
291 change_timeout(g_tooltip
.timeout
, g_tooltip
.hide_timeout_msec
, 0, tooltip_hide
, 0);
293 g_tooltip
.timeout
= add_timeout(g_tooltip
.hide_timeout_msec
, 0, tooltip_hide
, 0);
297 void stop_tooltip_timeout()
299 if (g_tooltip
.timeout
) {
300 stop_timeout(g_tooltip
.timeout
);
301 g_tooltip
.timeout
= 0;
306 void tooltip_copy_text(Area
* area
)
308 free(g_tooltip
.tooltip_text
);
309 if (area
&& area
->_get_tooltip_text
)
310 g_tooltip
.tooltip_text
= strdup(area
->_get_tooltip_text(area
));
312 g_tooltip
.tooltip_text
= 0;
313 g_tooltip
.area
= area
;