comparison: pidgin/gtkstyle.c
pidgin/gtkstyle.c
- branch
- trac-17174
- changeset 38822
- 93c0cd117e1d
- parent 38699
- e7b5011e4728
- child 39277
- 68c17ba18f33
equal
deleted
inserted
replaced
| 38821:329cf2453fb8 | 38822:93c0cd117e1d |
|---|---|
| 1 /* | |
| 2 * @file gtkstyle.c GTK+ Style utility functions | |
| 3 * @ingroup pidgin | |
| 4 */ | |
| 5 | |
| 6 /* pidgin | |
| 7 * | |
| 8 * Pidgin is the legal property of its developers, whose names are too numerous | |
| 9 * to list here. Please refer to the COPYRIGHT file distributed with this | |
| 10 * source distribution. | |
| 11 * | |
| 12 * This program is free software; you can redistribute it and/or modify | |
| 13 * under the terms of the GNU General Public License as published by | |
| 14 * the Free Software Foundation; either version 2 of the License, or | |
| 15 * (at your option) any later version. | |
| 16 * | |
| 17 * This program is distributed in the hope that it will be useful, | |
| 18 * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 20 * GNU General Public License for more details. | |
| 21 * | |
| 22 * You should have received a copy of the GNU General Public License | |
| 23 * along with this program; if not, write to the Free Software | |
| 24 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA | |
| 25 * | |
| 26 */ | |
| 27 #include "gtkstyle.h" | |
| 28 | |
| 29 /* Assume light mode */ | |
| 30 static gboolean dark_mode_cache = FALSE; | |
| 31 | |
| 32 gboolean | |
| 33 pidgin_style_is_dark(GtkStyle *style) { | |
| 34 GdkColor bg; | |
| 35 | |
| 36 if (!style) { | |
| 37 return dark_mode_cache; | |
| 38 } | |
| 39 | |
| 40 bg = style->base[GTK_STATE_NORMAL]; | |
| 41 | |
| 42 if (bg.red != 0xFFFF || bg.green != 0xFFFF || bg.blue != 0xFFFF) { | |
| 43 dark_mode_cache = ((int) bg.red + (int) bg.green + (int) bg.blue) < (65536 * 3 / 2); | |
| 44 } | |
| 45 | |
| 46 return dark_mode_cache; | |
| 47 } | |
| 48 | |
| 49 void | |
| 50 pidgin_style_adjust_contrast(GtkStyle *style, GdkColor *color) { | |
| 51 if (pidgin_style_is_dark(style)) { | |
| 52 gdouble r, g, b, h, s, v; | |
| 53 | |
| 54 r = ((gdouble) color->red) / 65535.0; | |
| 55 g = ((gdouble) color->green) / 65535.0; | |
| 56 b = ((gdouble) color->blue) / 65535.0; | |
| 57 | |
| 58 gtk_rgb_to_hsv(r, g, b, &h, &s, &v); | |
| 59 | |
| 60 v += 0.3; | |
| 61 v = v > 1.0 ? 1.0 : v; | |
| 62 s = 0.7; | |
| 63 | |
| 64 gtk_hsv_to_rgb(h, s, v, &r, &g, &b); | |
| 65 | |
| 66 color->red = (guint16) (r * 65535.0); | |
| 67 color->green = (guint16) (g * 65535.0); | |
| 68 color->blue = (guint16) (b * 65535.0); | |
| 69 } | |
| 70 } |
