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();
37 // give the tooltip some reasonable default values
43 .show_timeout_msec
= 0,
44 .hide_timeout_msec
= 0,
49 .font_color
= { .color
={1, 1, 1}, .alpha
=1 },
57 if (!g_tooltip
.font_desc
)
58 g_tooltip
.font_desc
= pango_font_description_from_string("sans 10");
60 XSetWindowAttributes attr
;
61 attr
.override_redirect
= True
;
62 attr
.event_mask
= StructureNotifyMask
;
63 attr
.colormap
= server
.colormap
;
64 attr
.background_pixel
= 0;
65 attr
.border_pixel
= 0;
66 unsigned long mask
= CWEventMask
|CWColormap
|CWBorderPixel
|CWBackPixel
|CWOverrideRedirect
;
67 if (g_tooltip
.window
) XDestroyWindow(server
.dsp
, g_tooltip
.window
);
68 g_tooltip
.window
= XCreateWindow(server
.dsp
, server
.root_win
, 0, 0, 100, 20, 0, server
.depth
, InputOutput
, server
.visual
, mask
, &attr
);
72 void cleanup_tooltip()
74 stop_tooltip_timeout();
76 g_tooltip
.enabled
= False
;
78 if (g_tooltip
.window
) {
79 XDestroyWindow(server
.dsp
, g_tooltip
.window
);
82 if (g_tooltip
.font_desc
) {
83 pango_font_description_free(g_tooltip
.font_desc
);
84 g_tooltip
.font_desc
= 0;
89 void tooltip_trigger_show(Area
* area
, Panel
* p
, int x_root
, int y_root
)
94 if (g_tooltip
.mapped
&& g_tooltip
.area
!= area
) {
95 tooltip_copy_text(area
);
97 stop_tooltip_timeout();
99 else if (!g_tooltip
.mapped
) {
100 start_show_timeout();
105 void tooltip_show(void* arg
)
109 XTranslateCoordinates( server
.dsp
, server
.root_win
, g_tooltip
.panel
->main_win
, x
, y
, &mx
, &my
, &w
);
110 Area
* area
= click_area(g_tooltip
.panel
, mx
, my
);
111 stop_tooltip_timeout();
112 if (!g_tooltip
.mapped
&& area
->_get_tooltip_text
) {
113 tooltip_copy_text(area
);
114 g_tooltip
.mapped
= True
;
115 XMapWindow(server
.dsp
, g_tooltip
.window
);
122 void tooltip_update_geometry()
127 cs
= cairo_xlib_surface_create(server
.dsp
, g_tooltip
.window
, server
.visual
, width
, height
);
128 c
= cairo_create(cs
);
129 layout
= pango_cairo_create_layout(c
);
130 pango_layout_set_font_description(layout
, g_tooltip
.font_desc
);
131 pango_layout_set_text(layout
, g_tooltip
.tooltip_text
, -1);
132 PangoRectangle r1
, r2
;
133 pango_layout_get_pixel_extents(layout
, &r1
, &r2
);
134 width
= 2*g_tooltip
.bg
->border
.width
+ 2*g_tooltip
.paddingx
+ r2
.width
;
135 height
= 2*g_tooltip
.bg
->border
.width
+ 2*g_tooltip
.paddingy
+ r2
.height
;
137 Panel
* panel
= g_tooltip
.panel
;
138 if (panel_horizontal
&& panel_position
& BOTTOM
)
139 y
= panel
->posy
-height
;
140 else if (panel_horizontal
&& panel_position
& TOP
)
141 y
= panel
->posy
+ panel
->area
.height
;
142 else if (panel_position
& LEFT
)
143 x
= panel
->posx
+ panel
->area
.width
;
145 x
= panel
->posx
- width
;
147 g_object_unref(layout
);
149 cairo_surface_destroy(cs
);
153 void tooltip_adjust_geometry()
155 // adjust coordinates and size to not go offscreen
156 // it seems quite impossible that the height needs to be adjusted, but we do it anyway.
158 int min_x
, min_y
, max_width
, max_height
;
159 Panel
* panel
= g_tooltip
.panel
;
160 int screen_width
= server
.monitor
[panel
->monitor
].x
+ server
.monitor
[panel
->monitor
].width
;
161 int screen_height
= server
.monitor
[panel
->monitor
].y
+ server
.monitor
[panel
->monitor
].height
;
162 if ( x
+width
<= screen_width
&& y
+height
<= screen_height
&& x
>=0 && y
>=0)
163 return; // no adjustment needed
165 if (panel_horizontal
) {
167 max_width
=screen_width
;
168 max_height
=screen_height
-panel
->area
.height
;
169 if (panel_position
& BOTTOM
)
172 min_y
=panel
->area
.height
;
175 max_width
=screen_width
-panel
->area
.width
;
177 max_height
=screen_height
;
178 if (panel_position
& LEFT
)
179 min_x
=panel
->area
.width
;
184 if (x
+width
> server
.monitor
[panel
->monitor
].x
+ server
.monitor
[panel
->monitor
].width
)
185 x
= server
.monitor
[panel
->monitor
].x
+ server
.monitor
[panel
->monitor
].width
- width
;
186 if ( y
+height
> server
.monitor
[panel
->monitor
].y
+ server
.monitor
[panel
->monitor
].height
)
187 y
= server
.monitor
[panel
->monitor
].y
+ server
.monitor
[panel
->monitor
].height
- height
;
195 if (height
>max_height
)
199 void tooltip_update()
201 if (!g_tooltip
.tooltip_text
) {
206 tooltip_update_geometry();
207 tooltip_adjust_geometry();
208 XMoveResizeWindow(server
.dsp
, g_tooltip
.window
, x
, y
, width
, height
);
210 // Stuff for drawing the tooltip
214 cs
= cairo_xlib_surface_create(server
.dsp
, g_tooltip
.window
, server
.visual
, width
, height
);
215 c
= cairo_create(cs
);
216 Color bc
= g_tooltip
.bg
->back
;
217 Border b
= g_tooltip
.bg
->border
;
218 if (real_transparency
) {
219 clear_pixmap(g_tooltip
.window
, 0, 0, width
, height
);
220 draw_rect(c
, b
.width
, b
.width
, width
-2*b
.width
, height
-2*b
.width
, b
.rounded
-b
.width
/1.571);
221 cairo_set_source_rgba(c
, bc
.color
[0], bc
.color
[1], bc
.color
[2], bc
.alpha
);
224 cairo_rectangle(c
, 0., 0, width
, height
);
225 cairo_set_source_rgb(c
, bc
.color
[0], bc
.color
[1], bc
.color
[2]);
228 cairo_set_line_width(c
, b
.width
);
229 if (real_transparency
) draw_rect(c
, b
.width
/2.0, b
.width
/2.0, width
- b
.width
, height
- b
.width
, b
.rounded
);
230 else cairo_rectangle(c
, b
.width
/2.0, b
.width
/2.0, width
-b
.width
, height
-b
.width
);
231 cairo_set_source_rgba(c
, b
.color
[0], b
.color
[1], b
.color
[2], b
.alpha
);
234 Color fc
= g_tooltip
.font_color
;
235 cairo_set_source_rgba(c
, fc
.color
[0], fc
.color
[1], fc
.color
[2], fc
.alpha
);
236 layout
= pango_cairo_create_layout(c
);
237 pango_layout_set_font_description(layout
, g_tooltip
.font_desc
);
238 pango_layout_set_text(layout
, g_tooltip
.tooltip_text
, -1);
239 PangoRectangle r1
, r2
;
240 pango_layout_get_pixel_extents(layout
, &r1
, &r2
);
241 pango_layout_set_width(layout
, width
*PANGO_SCALE
);
242 pango_layout_set_height(layout
, height
*PANGO_SCALE
);
243 pango_layout_set_ellipsize(layout
, PANGO_ELLIPSIZE_END
);
244 // 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.)
245 cairo_move_to(c
, -r1
.x
/2+g_tooltip
.bg
->border
.width
+g_tooltip
.paddingx
, -r1
.y
/2+g_tooltip
.bg
->border
.width
+g_tooltip
.paddingy
);
246 pango_cairo_show_layout (c
, layout
);
248 g_object_unref (layout
);
250 cairo_surface_destroy (cs
);
254 void tooltip_trigger_hide(Tooltip
* tooltip
)
256 if (g_tooltip
.mapped
) {
257 tooltip_copy_text(0);
258 start_hide_timeout();
261 // tooltip not visible yet, but maybe a timeout is still pending
262 stop_tooltip_timeout();
267 void tooltip_hide(void* arg
)
269 stop_tooltip_timeout();
270 if (g_tooltip
.mapped
) {
271 g_tooltip
.mapped
= False
;
272 XUnmapWindow(server
.dsp
, g_tooltip
.window
);
278 void start_show_timeout()
280 if (g_tooltip
.timeout
)
281 change_timeout(g_tooltip
.timeout
, g_tooltip
.show_timeout_msec
, 0, tooltip_show
, 0);
283 g_tooltip
.timeout
= add_timeout(g_tooltip
.show_timeout_msec
, 0, tooltip_show
, 0);
287 void start_hide_timeout()
289 if (g_tooltip
.timeout
)
290 change_timeout(g_tooltip
.timeout
, g_tooltip
.hide_timeout_msec
, 0, tooltip_hide
, 0);
292 g_tooltip
.timeout
= add_timeout(g_tooltip
.hide_timeout_msec
, 0, tooltip_hide
, 0);
296 void stop_tooltip_timeout()
298 if (g_tooltip
.timeout
) {
299 stop_timeout(g_tooltip
.timeout
);
300 g_tooltip
.timeout
= 0;
305 void tooltip_copy_text(Area
* area
)
307 free(g_tooltip
.tooltip_text
);
308 if (area
&& area
->_get_tooltip_text
)
309 g_tooltip
.tooltip_text
= strdup(area
->_get_tooltip_text(area
));
311 g_tooltip
.tooltip_text
= 0;
312 g_tooltip
.area
= area
;