1 /* $BEGIN_LICENSE
2 
3 This file is part of Minitube.
4 Copyright 2009, Flavio Tordini <flavio.tordini@gmail.com>
5 
6 Minitube is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
10 
11 Minitube 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 
16 You should have received a copy of the GNU General Public License
17 along with Minitube.  If not, see <http://www.gnu.org/licenses/>.
18 
19 $END_LICENSE */
20 
21 #ifndef ICONUTILS_H
22 #define ICONUTILS_H
23 
24 #include <QtWidgets>
25 
26 class IconUtils {
27 public:
28     static void setSizes(const QVector<int> &value);
29 
30     static QIcon fromTheme(const QString &name);
31     static QIcon fromResources(const char *name, const QColor &background);
32 
setWidgetIcon(T * obj,const char * name)33     template <class T> static void setWidgetIcon(T *obj, const char *name) {
34         auto setObjIcon = [obj, name] {
35             obj->setIcon(icon(name, obj->palette().color(obj->backgroundRole())));
36         };
37         obj->connect(qApp, &QGuiApplication::paletteChanged, obj, setObjIcon);
38         setObjIcon();
39     }
setIcon(T * obj,const char * name)40     template <class T> static void setIcon(T *obj, const char *name) {
41         auto setObjIcon = [obj, name] { obj->setIcon(icon(name)); };
42         setObjIcon();
43         obj->connect(qApp, &QGuiApplication::paletteChanged, obj, setObjIcon);
44     }
45     static QIcon icon(const char *name,
46                       const QColor &background = qApp->palette().window().color());
47     static QIcon icon(const QVector<const char *> &names,
48                       const QColor &background = qApp->palette().window().color());
49 
50     static QIcon tintedIcon(const char *name, const QColor &color, const QVector<QSize> &sizes);
51     static QIcon tintedIcon(const char *name, const QColor &color, const QSize &size);
52     static void tint(QPixmap &pixmap,
53                      const QColor &color,
54                      QPainter::CompositionMode mode = QPainter::CompositionMode_SourceIn);
55 
56     // HiDPI stuff
57     static QPixmap pixmap(const char *name, const qreal pixelRatio);
58     static QPixmap pixmap(const QString &filename, const qreal pixelRatio);
59     static QPixmap
60     iconPixmap(const char *name, int size, const QColor &background, const qreal pixelRatio);
61 
62 private:
IconUtils()63     IconUtils() {}
64     static QImage grayscaled(const QImage &image);
65     static QImage tinted(const QImage &image,
66                          const QColor &color,
67                          QPainter::CompositionMode mode = QPainter::CompositionMode_Screen);
68 };
69 
70 #endif // ICONUTILS_H
71