1 /* This file is part of Clementine.
2    Copyright 2010, David Sansome <davidsansome@gmail.com>
3    Copyright 2014, Krzysztof Sobiecki <sobkas@gmail.com>
4 
5    Clementine is free software: you can redistribute it and/or modify
6    it under the terms of the GNU General Public License as published by
7    the Free Software Foundation, either version 3 of the License, or
8    (at your option) any later version.
9 
10    Clementine is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU General Public License for more details.
14 
15    You should have received a copy of the GNU General Public License
16    along with Clementine.  If not, see <http://www.gnu.org/licenses/>.
17 */
18 
19 #ifndef CORE_STYLESHEETLOADER_H_
20 #define CORE_STYLESHEETLOADER_H_
21 
22 #include <QString>
23 #include <QPalette>
24 #include <QWidget>
25 #include <QMap>
26 
27 class StyleSheetLoader : public QObject {
28  public:
29   explicit StyleSheetLoader(QObject* parent = nullptr);
30 
31   // Sets the given stylesheet on the given widget.
32   // If the stylesheet contains strings like %palette-[role], these get replaced
33   // with actual palette colours.
34   // The stylesheet is reloaded when the widget's palette changes.
35   void SetStyleSheet(QWidget* widget, const QString& filename);
36 
37  protected:
38   bool eventFilter(QObject* obj, QEvent* event);
39 
40  private:
41   void UpdateStyleSheet(QWidget* widget);
42   void ReplaceColor(QString* css, const QString& name, const QPalette& palette,
43                     QPalette::ColorRole role) const;
44 
45  private:
46   QMap<QWidget*, QString> filenames_;
47 };
48 
49 #endif  // CORE_STYLESHEETLOADER_H_
50